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Journal articles on the topic 'Sewing'
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Phan, Thanh Thao, Thi Thu Uyen Nguy, and Duy-Nam Phan. "Building Rules of Some Influential Technological Factors on Sewing Time for Products from Knitted Fabrics." ECS Transactions 107, no. 1 (April 24, 2022): 7649–59. http://dx.doi.org/10.1149/10701.7649ecst.
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This paper presents the results of research on building empirical regression equations showing the law of simultaneous influence of the group of technology factors on the upper sewing time when sewing polo shirt and t-shirt products from single jersey at Star Hanoi Fashion Co., Ltd. The studies on the factors affecting time on the sewing machine include the length line (cm) and the stitch density (stitch/cm), the experiment on 04 devices, and 03 patterns of knitted fabric different thickness single woven tops. Thereby showing the difference in sewing time value on 04 sewings, corresponding to specific values of 2 research variables, which are stitch density and seam length when sewing on single fabric with 03 different thicknesses for polo shirt and t-shirt.
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Kamulovich, Yuldashov Qaxraman. "INNOVATION IN SEWING SEWING PROCESSES." European International Journal of Multidisciplinary Research and Management Studies 02, no. 04 (April 1, 2022): 167–72. http://dx.doi.org/10.55640/eijmrms-02-04-30.
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Matthews, B. Ann, and Trevor J. Little. "Sewing Dynamics." Textile Research Journal 58, no. 7 (July 1988): 383–91. http://dx.doi.org/10.1177/004051758805800703.
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A measuring system has been developed to capture and analyze forces directly encountered by the needle bar and presser bar from a high speed sewing machine. The forces recorded from the needle bar reflect those encountered by needle penetration and withdrawal. The forces recorded from the presser bar are those transferred by the feed dog as it advances the fabric each sewing cycle. A measuring system known as the ncsu sewing dynamometer is capable of detecting changing sewing parameters, including variations in the material being sewn, increasing plies of fabric, frictional forces on the sewing needle, and the dynamics of the feeding system.
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B. A., Muralidhar. "Effect of Workwear Fabric Fluorocarbon Coating on Changes in Tensile Properties of Sewing Threads." TEKSTILEC 65, no. 2 (June 17, 2022): 125–34. http://dx.doi.org/10.14502/tekstilec.65.2022010.
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This paper presents the findings of changes in the tensile behaviour of sewing threads in two-seam configu¬ration on three different workwear fabrics, i.e. drill, duck and rip-stop structures, before and after the coating. For this research, commercially available workwear fabrics were obtained from the domestic industry and the sewing was carried out using a 40 tex core-spun polyester sewing thread. High-speed heavy-duty lockstitch sewing machines were used to construct both the superimposed (SSa) and lapped seams (LSd). The strength of sewing threads sewn in the two-seam configuration were carefully unravelled and compared with the unsewn sewing thread (UST). The effect of coating on the changes in tenacity, breaking elongation and initial modulus of the needle thread was reported. It was found that there was a significant effect of weave structure on the tenacity of the sewing thread.
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Lee, Suyeon, and Hee Jung Ha. "A Study on Current State in Stitches and Seams Usage for Building Smart Sewing Systems: Focused on Sewing Specification of Cut and Sewn Knit." Family and Environment Research 58, no. 3 (August 20, 2020): 357–74. http://dx.doi.org/10.6115/fer.2020.026.
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This study suggests the use of standardized sewing terms for the construction of smart sewing systems. This study analyzed the use of stitches (ISO 4915) and seams (ISO 4916) for cut and sewn knit garment which are the basic elements of sewing on an ISO basis. The results of the analysis of sewing specifications of cut and sewn knit garments are as follows. First, the use of stitches and seams were analyzed. As a result, both stitches and seams were used as non-standard terms. Second, among 3,263 stitches, ISO 4915 No. 406 followed by 401, 504, 605 were the most frequently used; however, ISO 4915 No. 514 was anticipated the most because the ISO 4915 No. 514 used for joining was not recorded in the sewing specification. Finally, the use of stitch for each seam was analyzed. The most common stitch used for ISO 4916 No. 6.02.07 was ISO 4915 No. 406. In addition, when it was sewing ISO 4916 No. 4.04.01, ISO 4915 No. 504 was used in step 1, and ISO 4915 No. 406, 602, and 605 were used in step 2. It is important to use the international standard sewing terms for the production site based on the results. In addition, the construction of smart sewing systems and the work of international standardization through industryuniversity cooperation are important for securing global competitiveness. Therefore, the use of international standard terminology and practical training should be conducted with a focus on stitching and seams with high frequency of use.
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Shekarian, Reyhaneh, Sayyed Mahdi Hejazi, and Mohammad Sheikhzadeh. "A model on the viscoelastic behavior of sewn knitted fabrics." International Journal of Clothing Science and Technology 31, no. 3 (June 3, 2019): 362–75. http://dx.doi.org/10.1108/ijcst-12-2016-0135.
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Purpose Knitted fabrics have been widely used in a wide range of applications such as apparel industry. Since these fabrics are continuously subjected to the long-term tensile stresses or tensile creep in real conditions, investigation of viscoelastic behavior of sewn knitted fabrics would be important especially at the seamed area. The paper aims to discuss this issue. Design/methodology/approach A lockstitch machine was used to produce sewn samples by knitted fabric. Factors such as stitch per inch (SPI), thread tension and thread type were variables of the model. Tensile creep tests under constant load of 200 N were conducted, and creep compliance parameter D(t) of samples was obtained as a response variable. A successive residual method (SRM) was also used to characterize viscoelastic properties of sewn-seamed fabrics. Findings The instantaneous elastic responses of the seamed samples were less than those of the neat fabric (fabric with no seam). An increase in sewing thread strength increases the instantaneous elastic response of the sample. SPI and thread tension have an optimum value to increase E0. High tenacity polyester thread, due to its higher elastic modulus, caused a larger E0 than polyester/cotton thread in sewn knitted fabric. Characteristics of seam including sewing thread type, SPI and sewing tension have significant influence on T0. Sewn-seamed fabric by high modulus thread shows less viscous strain T0 than the neat fabric (fabric with no seam). Viscous strain T0 decreases as SPI changes from 8 to 4 and/or 12. SPI and thread tension have an optimum value to increase the viscous strain T0. E1 is the same for optimum seamed fabric and fabric sample but T1 is about two times greater for seamed fabric. Retarded time for creep recovery increases by sewing process but characteristics of seam have significant influence on E1 and T1. All sewn knitted fabric samples used in this study could be described by Burger’s model, which is a Maxwell model paralleled with a Kelvin one. Originality/value This paper is going to use a different method named successive residuals to model the creep behavior of seamed knitted fabric. On the whole, this paper paved a way to obtain viscoelastic constants of sewn-seamed knitted fabrics based on different sewing parameters such as the modulus of elasticity of the sewing thread, SPI and sewing thread tension.
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YILDIZ, ESRA ZEYNEP, and GÜLŞAH PAMUK. "The effect of loop length, yarn twist and dyeing process on seam strength of knitted fabrics." Industria Textila 73, no. 05 (October 26, 2022): 554–59. http://dx.doi.org/10.35530/it.073.05.202174.
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Seam strength is a key factor both in terms of aesthetics and the life of the apparel. There are many factors affecting seam strength, some of which are relevant to fabric construction and treatment, and the others are about sewing thread and sewing parameters. This research paper focuses on the effects of fabric construction, sewing parameters and the dyeing process on the seam strength of knitted fabrics. For this purpose, seven single jersey knitted fabrics were produced, differing in loop length and yarn twist. The samples were dyed and then sewn with different sewing parameters. The seam strength values were calculated and statistically evaluated. The results showed that fabric construction, sewing thread type and count, stitch density and dyeing process profoundly influence the seam strength of single jersey fabrics. When comparing the effects of dyeing, it was found that dyeing leads to a decrease in seam strength values
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Lapidus, Jacqueline. "Sewing." Women's Review of Books 5, no. 12 (September 1988): 19. http://dx.doi.org/10.2307/4020382.
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Pasayev, Nazim, Mahmut Korkmaz, and Dilek Baspinar. "Investigation of the techniques decreasing the seam slippage in chenille fabrics (Part II)." Textile Research Journal 81, no. 20 (December 2011): 2075–81. http://dx.doi.org/10.1177/0040517511413321.
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The seam slippage in woven fabric products is an adverse event in sewn products. The purpose of this study is to examine the seam slippage in chenille fabric products which are widely used as upholstery fabrics and to research ways to decrease seam slippage. In this study, the theoretical analysis of the seam slippage mechanism has been performed by the literature analysis and the results of experimental studies which were obtained in Part I. In this analysis, seam slippage is examined as the sum of two factors: the deformation of sewing stitch and the slippage of the fabric yarns by sewing stitch chains. According to the theoretical analysis of the processes, it can be inferred that it is possible to decrease seam slippage by driving the energy of applied mechanical forces to other tasks. Based on the results, the ways to decrease seam slippage, which occur in sewn products, have been determined. Two of them are related to the selection of sewing yarn and sewing parameters based on previous researches. The dependence of the other two ways on the fabric structure supported with adhesive interlining and the selection of sewing type were examined. The results of the experimental studies supported the results of the theoretical analysis.
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Sukran, Kara. "Comparison of sewn fabric bending rigidities obtained by heart loop method: effects of different stitch types and seam directions." Industria Textila 71, no. 02 (April 30, 2020): 105–11. http://dx.doi.org/10.35530/it.071.02.1647.
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Sewing quality is an important factor that contributes to the overall quality of an end-product. Sewing quality compro - mises different components such as bending, seam strength, seam slippage, elasticity etc. Among these components, bending has a special importance because of causing changes in appearance, sensorial comfort and drape of a garment. Therefore, in this study, effects of stitch type and seam direction on the bending rigidities of sewn fabrics were evaluated and compared. A polyester woven fabric which is suitable for sportswear was sewn with three basic stitch types (lock stitch, chain stitch and overlock stitch), in 5 different directions (warp, weft, 30°, 45° and 60° angles). As reference, samples without stitches were tested, too. Bending properties of samples were determined via heart loop method. According to the results, sewing increased the fabric bending rigidity. The degree of bending rigidity increment was dependent on the stitch type. Highest bending rigidity values were obtained for overlock stitched samples those were approximately 4 times higher when compared to non-sewn reference samples. Thickness of sewn parts was in accordance with the bending rigidity results. For oriented seams, bias sewing especially for 45˚ oriented samples, showed the most advantageous bending results. This study showed the usability of heart loop method for sewn samples via consistent results for different stitch types and seam directions.
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Mansurova, Мunisa, Аnvar Djuraev, and Gulchiroy Saidova. "Improving the design of sewing machine elements for the environmentally sustainable development of the light industry." E3S Web of Conferences 390 (2023): 04016. http://dx.doi.org/10.1051/e3sconf/202339004016.
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Modern tasks of environmentally sustainable development of light industry require continuous improvement of the design of sewing equipment elements. Textile production is one of the key components of the light industry, therefore, innovative developments in the design of sewing equipment elements allow the deployment of green technologies throughout the industry. Moreover, emissions from light industry, as a rule, are easier to reduce precisely from a technological point of view, by improving the design of sewing machine elements and using environmentally friendly textile materials. An analysis of the constructive features of devices for the folding the sewn materials on a sewing machine is given in the article. A constructive scheme and the principle of operation of the improved construction of the ratchet of the device for obtaining various forms of folds of materials are presented. The construction of the folding device with different pitches and shapes of materials on the sewing machine has been recommended. The methods of profiling the curvilinear working areas of the ratchet wheels of the device has been substantiated.
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Mazari, Adnan. "Effect of Needle Heating on the Sewing of Medical Textiles." Polymers 13, no. 24 (December 15, 2021): 4405. http://dx.doi.org/10.3390/polym13244405.
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Medical textiles, such as gowns, scrubs, and even disposable uniforms, are all stitched by sewing machines. These garments are mostly made from polypropylene (PP) and polyester due to their durability, antibacterial performance, and functionality. Demand for these garments has significantly risen in the last few years, and sewing machines are able to stitch at extremely high speeds. However, higher sewing speeds can cause burnt spots on the fabric, lower seam strength, and a decrease in production due to thread breakage. In this paper, I have deeply discussed how medical textiles lose their strength and functionality due to higher sewing speeds; this problem is often neglected due to high production demands. This research is based on PP medical gowns, stitched with polyester (PET) threads, sewn at different speeds. The experimental work is also followed by a theoretical explanation of needle heating during the stitching of medical textiles.
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Jiang, Juan Fen, Chen Dai, Hong Yan Liu, Qiu Ping Zhang, and Yue Qi Zhong. "An Approach of Clothes Appearance Comparison between True and Virtual Sewing." Key Engineering Materials 671 (November 2015): 460–65. http://dx.doi.org/10.4028/www.scientific.net/kem.671.460.
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The technology of 3D garment virtual sewing has been developed for several decades, we proposed an approach to verify the virtual garments sewing effect. Here we took a sleeveless dress for our example, and the patterns of the dresses are made by expertise garment CAD software. The dresses patterns are used for two options. The first is for actual cutting and sewing. The second is for virtual sewing. The actual sleeveless dress is made by woolen fabric for our experiment. The parameters of the fabric mechanical properties in virtual sewing should be selected the same with the actual fabric. The fabric properties in this paper are mainly referred to shear property, tensile property and bearing property. We observe the surface shape of the finished dresses, compare the differences between the true and virtual sewing, and find the modified approach. Gray scale transformation and binary image processing are exploited for appearance comparison between real and simulated clothes sewn by the same 2D patterns. Folds and silhouettes comparison are main two features in our proposed approach. The sum of the squared differences is calculated for folds comparison, and the mismatches pixels are computed for silhouettes comparison. The aim of our research is proposed for forecasting the ready-made clothes which are made by given patterns, and check whether it is meet the requirement of the clients or not.
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Monnie, Patience Danquah, Docea Fianu, and Efua Vandyck. "Thread Type and Stitch Density Suitable for Seams in Ghanaian Public Basic School Uniforms." Current Materials Science 14, no. 2 (August 12, 2021): 168–78. http://dx.doi.org/10.2174/2666145414666210428104623.
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Background: The serviceability of a sewn garment is influenced by the quality of its seams, which form the basic structural element. The factors that affect seam quality in garments include, sewing thread type and stitch density. Their right choice helps with the achievement of quality seams in garments. However, the choice of suitable sewing threads and stitch densities for particular fabrics can only be determined through testing. Objective: Problems associated with the poor performance of school uniforms include seam failure. The aim of the study was to determine sewing thread brand and stitch density suitable for seams for a selected fabric (79% polyester and 21% cotton) for Ghanaian public basic school uniforms. Methods: A 2×3 factorial design was employed, which involved two brands of sewing threads labelled A` and B` and three ranges of stitch density, 10, 12, and 14. The total number of specimens prepared from the selected fabric was 81. The parameters investigated included fabric weight, strength, and elongation, seam strength, seam elongation, and efficiency. The data were analysed using the Predictive Analytics Software (SPSS). Means and standard deviations of the fabric’s yarn count, weight, strength, elongation and the linear density of the sewing threads were determined. Analysis of Variance and Independent samples t-test at 0.05 alpha levels were employed in testing the hypotheses. Results: Differences in seam strength, efficiency, and elongation were significant for the two sewing thread brands and the three stitch densities in both warp and weft directions of the fabric sample. The sewing thread brand B′ with stitch density 14 performed best in terms of seam strength, elongation, and efficiency. Conclusion: The sewing thread brand B′ and stitch density 14 are recommended to be used for the construction of uniforms with the selected fabric to achieve quality in uniforms.
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Rehman, Ateeq ur, Abher Rasheed, Zafar Javed, M. Salman Naeem, Muhammad Babar Ramzan, and Mehmet Karahan. "Geometrical Model to Determine Sewing Thread Consumption for Stitch Class 406." Fibres and Textiles in Eastern Europe 29, no. 6(150) (December 31, 2021): 72–76. http://dx.doi.org/10.5604/01.3001.0015.2726.
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This study aimed at developing a geometrical model for predicting the sewing thread consumption of stitch class 406. Stitch class 400 is a multi-thread chain stitch which consumes a less amount of thread as compared with stitch class 500 but more thread as compared with stitch class 300. Sewing thread calculation plays a significant role in determining the exact amount of thread for completing a garment and predicting the right quantity of thread for bulk production. The geometrical model developed was used for predicting sewing thread consumption by using different factors like stitch density (8 and 12 SPI), material thickness (2, 4 and 6 layers of fabric), and type of material (denim, knitted and fleece). The model was validated with a total of 18 samples sewn with different kinds of fabric, SPI, and material thickness. It was concluded that the model could predict sewing thread consumption with more than 97.18% accuracy.
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Uzun, Muhammet, Başak Gümüştaş, Hilal Huşçe, Md Humayun Kabir, and Emine Kanberoğlu. "A comprehensive study on the effect of different seam parameters on woven fabrics." Journal of Textile Engineering & Fashion Technology 8, no. 2 (May 16, 2022): 48–52. http://dx.doi.org/10.15406/jteft.2022.08.00300.
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Nowadays, in the ready-made clothing industry, woven fabrics of different construction and pattern are used to a greater extent. Low sewing performance is a common phenomenon that is observed in these fabrics. This study aims to define the dominant parameters such as fiber, yarn, fabric structure, sewing thread, and sewing needle, which affect sewing performance and cause sewing defects, and to examine their effects on sewing quality. The most frequently used needle and sewing thread, fabric weighing under 200g/m2 which may cause a problem in sewing are selected for this study. Effective sewing parameters and combinations that can work most efficiently with different fabric properties are suggested accordingly. The study aims to determine and minimize the damage caused by sewing needles on thin fabrics.
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Midha, VIinay Kumar, Shailja Sharma, and Vaibhav Gupta. "Predicting sewing thread consumption for lockstitch using regression model." Research Journal of Textile and Apparel 20, no. 3 (September 12, 2016): 155–63. http://dx.doi.org/10.1108/rjta-08-2016-0019.
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Purpose This paper aims to develop a single regression model (instead of developing models separately for each thread type) to predict the sewing thread consumption for cotton and polyester staple spun threads. Design/methodology/approach A single regression model is developed for predicting sewing thread consumption for cotton and polyester threads. The polyester sewing threads have lower sewing thread consumption as compared to cotton threads because of their higher elongation behaviour. The model differentiates between the cotton and polyester sewing threads using their elongation values at peak levels of tensions experienced by the sewing threads during stitch tightening. By comparing the estimated thread consumption values with actual values, the effectiveness of model is evaluated with root mean square error and coefficient of determination (R2). Findings During the sewing process, by understanding the behaviour of different types of sewing threads, it is possible to develop a single regression model for all types of threads. Practical implications The sewing thread consumption can be easily calculated for cotton and polyester sewing threads using a single regression equation using the sewing assembly thickness, stitch density and elongation of thread at peak tension. The garment manufacturers need not depend on different charts for sewing thread consumption for stock management. Originality/value The sewing thread consumption is different for different types of threads, and garment manufacturers have to depend on different charts given by sewing thread manufacturers or use different equations for each type of threads. Using this single regression equation, sewing thread consumption for cotton and polyester sewing thread can be estimated accurately.
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Montazer, M. Ali, Suresh K. Vyas, and Ronald N. Wentworth. "A Study of Human Performance in a Sewing Task." Proceedings of the Human Factors Society Annual Meeting 31, no. 5 (September 1987): 590–94. http://dx.doi.org/10.1177/154193128703100525.
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A study of human performance on sewing machines was undertaken by looking at a simple straight-stitch sewing task. The primary purpose of the study was to investigate whether sewing tasks could be described by a self-paced movement control model. A sewing experiment was conducted with six female subjects. The factors considered were Subjects, Sewing zone tolerance, Fabric type, and Stitch rate. Sewing time per trial and errors were recorded. The results of ANOVA on sewing speeds showed significant effects for all the main factors. The significant sewing zone tolerance is in agreement with the results of previous studies of movement control where the tasks were line drawing, forklift truck driving, and beam walking. The relationship between the sewing speed and the sewing zone tolerance was found to be linear with ρ = 0.963, which proves the applicability of a self-paced movement control model to sewing tasks. The slope of this relationship can be viewed as a measure of task controllability as it quantifies some of the factors involved. The slope can further be used to observe the speed penalty for defining tighter and more accurate sewing tolerances.
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Ukponmwan, J. O., A. Mukhopadhyay, and K. N. Chatterjee. "SEWING THREADS." Textile Progress 30, no. 3-4 (September 2000): 1–91. http://dx.doi.org/10.1080/00405160008688888.
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SHIMAZAKI, KOZO. "Sewing Technology." Sen'i Gakkaishi 45, no. 12 (1989): P539—P542. http://dx.doi.org/10.2115/fiber.45.12_p539.
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Roberts, Janine. "Sewing time." Families, Systems, & Health 29, no. 2 (2011): 153. http://dx.doi.org/10.1037/a0023396.
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Strassberg, Adam Franklin. "Sewing lessens." Journal of General Internal Medicine 13, no. 10 (October 1998): 724–26. http://dx.doi.org/10.1046/j.1525-1497.1998.00219.x.
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Clapp, Timothy G., Trevor J. Little, Theresa M. Thiel, and Dianna J. Vass. "Sewing Dynamics." International Journal of Clothing Science and Technology 4, no. 2/3 (February 1992): 45–53. http://dx.doi.org/10.1108/eb002993.
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Darken, Robert. "Sewing Box." Italian Americana XXXIX, no. 1 (February 1, 2021): 60–61. http://dx.doi.org/10.5406/2327753x.39.1.13.
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Booth, T. E., and J. E. Gubernatis. "Sewing algorithm." Computer Physics Communications 180, no. 4 (April 2009): 509–11. http://dx.doi.org/10.1016/j.cpc.2008.11.009.
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Cole, Thomas B. "Alma Sewing." JAMA 302, no. 18 (November 11, 2009): 1944. http://dx.doi.org/10.1001/jama.2009.1616.
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Supriyadi, Dimas Hadi Prayetno, Santi Pertiwi Hari Sandi, and Dwi Epty Hidayaty. "Cv Buana Convection Employee Training to Optimize Productivity and Skills." Formosa Journal of Applied Sciences 2, no. 6 (June 16, 2023): 961–68. http://dx.doi.org/10.55927/fjas.v2i6.4578.
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The Buana Convection sewing business is a convection engaged in services that is growing rapidly in Karawang. This business involves the production of clothing, accessories and other textile goods through sewing processes using sewing machines. This industrial visit to CV Buana Convection uses descriptive and observative methods. training of employees in the sewing business aims to improve their skills and knowledge in sewing. Such training can cover various aspects, such as sewing techniques, fabric selection, pattern understanding, product manufacturing, inventory management and sales. It is important for sewing business owners to identify the training needs of their employees and develop a program to suit those needs. In the digital era, technology also plays an important role in the sewing business.
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Kara, S. "EFFECTS OF ARAMID SEWING YARN TYPE AND FABRIC COMPOSITIONS ON SOME SEAM PROPERTIES OF HIGH PERFORMANCE FIRE RETARDANT FABRICS." TEXTEH Proceedings 2021 (October 22, 2021): 116–22. http://dx.doi.org/10.35530/tt.2021.16.
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High performance fire retardant textiles are utilized in different end-use areas such as workwear, firefighter garments, military textiles etc. These textiles are produced to protect the wearer against harsh environmental/occupational hazards and to bear forces during occupation. In the literature, fire-retardancy and mechanical performance of high performance fire retardant textiles are searched in details. Nevertheless, in most of these studies, samples were in the form of fibres or fabrics. When the fabrics are cut and sewn together to form a textile article, their mechanical properties change along the seam lines. In spite of this fact, seam properties of high performance fire retardant fabrics were not studied in the literature, systematically. Therefore, in this study, some seam properties of high performance fire retardant fabrics were studied as a preliminary work in this subject. According to results, seam strength of all samples were considerably lower when compared to strength of non-sewn reference samples. Strength differences were detected between the samples sewn with meta–aramid sewing yarn and para-aramid sewing yarn. Seam elongation and seam slippage values were similar for both sewing yarn types.
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Mazari, Adnan, and Antonin Havelka. "Impact of stitch length on sewing needle temperature." World Journal of Engineering 11, no. 2 (June 1, 2014): 187–92. http://dx.doi.org/10.1260/1708-5284.11.2.187.
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In this article the sewing needle heat is measured without sewing thread and with sewing thread at different stitch density (stitches per inch or SPI) of lock stitch sewing machine by thermocouples. Two methods are used to measure sewing needle heat, touch thermocouple method and inserted thermo couple method. Needle temperature is measured after periodic 10, 20, 30 and 60 seconds of sewing operation. Whereas the machine running at speed from 1000 r/m to 4700 r/m. It is observed that decreasing stitch length causes an increase in the temperature of the sewing needle. Stitch density shows same influence on needle for sewing with thread and without thread. It is observed from our research that at SPI of 14 the needle temperature with thread rises to 259 °C at 4000 r/min of machine. It is recommended to use minimum stitch density.
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MESEGUL, Cansu, and Gulseren KARABAY. "Usage of Fusible Sewing Threads to Improve the Waterproof Property of Seam." Materials Science 26, no. 4 (August 17, 2020): 498–504. http://dx.doi.org/10.5755/j01.ms.26.4.24147.
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In classical stitching process, needle holes occur during the penetration of the needle through the fabric. If the waterproofness of the sewn product is important, the water leakage from these holes must be prevented. To prevent this negative situation, different techniques such as sealing of seams with waterproof tapes, joining the textile materials by bonding or welding are used. Among these techniques, there is no needle damage in bonding and welding and all the seam area is covered by thermal or chemical bonding. In sewing technology, the water leakage is prevented by covering all the seam area with seam sealing tape. These three methods have different effects on the physical properties of the seams obtained. Instead of covering the whole seam area, covering just the needle damages is the focus of this research. With this aim, fusible sewing threads were used to cover the needle damages to increase the waterproof performance of seam line. The fusible sewing threads have not been used for obtaining waterproof seams before. In this research, the fusible sewing threads were used as lower thread in different combinations. Initial results of waterproofness test show that, melted fusible threads improve the waterproof performance of seams. In other words, the needle damages on sewn fabric can be covered by melted fusible sewing thread. However, unbalanced seam is the negative side of this research because of using different threads as needle and bobbin thread. Additionally, there is no variety of fusible threads to select an appropriate one for this method. The study is hoped to be a sample for the further studies on this method, using different fusible threads, fabrics, seam types and even improving new fusible threads for this waterproofing method.
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Nawawi, R., Baba Md Deros, Dian Darina Indah Daruis, A. Ramli, and R. Md Zein. "A Pilot Study on Work-Related Neck-Shoulder Pain among Sewing Machine Operators." Applied Mechanics and Materials 471 (December 2013): 167–71. http://dx.doi.org/10.4028/www.scientific.net/amm.471.167.
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Prevalence of neck-shoulder pain among sewing machine operators is well known. It may be due to the nature and incorrect posture used by sewing machine operators while performing sewing work. However, up till now there is no empirical evidence that can be used to relate the risk factors that would results towards the development of neck and shoulder pain among sewing machine operators. The main objective of this study is to identify and investigate the risk factors that result in neck and shoulder pain among Malaysian sewing machine operators. Twenty female sewing machine operators took part in answering a survey questionnaire to investigate the prevalence of neck and shoulder pain among sewing machine operators. The survey questionnaire was divided into five sections: socio-demographic, work background, workload information, physical exposures and physical musculoskeletal symptoms experienced by workers. Having done that, sewing machine operators who have been screened with neck and/or shoulder pain was evaluated with Rapid Upper Limb Assessment (RULA) to determine the level of workplace risk factors. Subjects without neck and/or shoulder pain were excluded. Results of the study shows that all sewing operators were expose to risk of prolonged sitting, repetitive task and working at high speed. Ninety five percent of sewing machine operators had experienced neck and/or shoulder pain and 80% of them were exposed to high work risk factors that require them to undergo further investigation. Shoulder pain was found to be strongly correlated with high work risk factor among sewing machine operators (p<0.05). In conclusion, occurrence of shoulder pain among sewing operators is due to posture and nature of sewing work.
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Mazari, Adnan, and Antonin Havelka. "Tensile Properties of Sewing Thread and Sewing Needle Temperature at Different Speed of Sewing Machine." Advanced Materials Research 627 (December 2012): 456–60. http://dx.doi.org/10.4028/www.scientific.net/amr.627.456.
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Needle heatup is a big issue for apparel industry especially for automobile industry seat covers where a lot of synthetic materials are used which get damaged by needle heat at high speed of sewing machine,in this article thermocamera and thermocouple are used to measure the precise temperature of needle eye and then 100% polyester 35x3 Tex thread is taken for sewing,the lockstitch sewing machine is run at 1000rpm,2000rpm and 3000rpm respectively and the both methods are used to obtain the accurate needle temperature and finally thread tensile properties are measured before the sewing and taking out the thread from the seam precisely to get the tensile properties of thread after 10,30 and 60 seconds of continuous stitching,the article is very helpful in predicting the exact temperature of needle in lock stitch machine and getting the damage to thread by the needle heat at different speeds and different stages of sewing process.
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Choudhary, Awadhesh Kumar, Monica Puri Sikka, and Payal Bansal. "The study of sewing damage and defects in garments." Research Journal of Textile and Apparel 22, no. 2 (June 4, 2018): 109–25. http://dx.doi.org/10.1108/rjta-08-2017-0041.
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PurposeThe purpose of this review paper is to define the dominating factors (such as fiber, yarn, fabric structure, sewing thread, sewing needle and machine parameters) that affect the seam damages and causing defects. It also describes the various explanations of sewing defects in garment production and critically analyzes them for optimum selection of parameters and speeds for minimizing such faults. Hence, the knowledge of various factors which affect the sewing damages/defects will be helpful for garment manufacturers/researchers to know influence of the parameters and control the quality of producing seam.Design/methodology/approachThis section is not applicable for a review paper.FindingsSewing damages such as needle cut and other sewing damages/defects are studied mostly in woven fabric. There are very few studies conducted on knitted fabric sewing damages/defects. The sewing damage problems do not have single solution that is capable of removing these damages in fabric. All the determined and affecting parameters related to fiber, yarn, fabric construction, sewing thread and sewing machine must be examined to design appropriate remedial measurement related to machine design, fabric parameters and sewing thread. This could help in minimizing or eliminating the needle cut and other sewing damage problems.Originality/valueIt is an original review work and is helpful for garment manufacturers/researchers to reduce the defects and be able to produce good quality seam.
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Eladly, Amira Mohamed, Mohamed Gaber Abou-Ali, Aida Mohamed Sheta, and Sherwet Hussein EL-Ghlomy. "A flexible ergonomic redesign of the sewing machine workstation." Research Journal of Textile and Apparel 24, no. 3 (June 15, 2020): 245–65. http://dx.doi.org/10.1108/rjta-10-2019-0050.
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Purpose The apparel industry is a labor-intensive industry, which depends mainly on the performance of the worker. The purpose of this study is to present an ergonomic redesign of the sewing machine workstation, with different sewing table heights and inclination angles, based on the operator’s anthropometric data. Design/methodology/approach A flexible ergonomic sewing table has been designed, four main workstation-setting factors were studied; sewing desk inclination angles – X_1, height – X_2, sewing machine type – X_3 and operator’s body mass index (BMI) – X_4, with three levels for each factor, except sewing machine type, which only has two levels. The study was undertaken to specify the limitations and advantages of each combination tested. Different measurement techniques were used; subjective information, production rates – P, working postures (head, neck and trunk inclination angles in the kinematic stage) were measured. Findings Sewing operators’ sitting posture angles in the kinematic stage were affected more or less by their anthropometric measurements and the type of sewing machine. These two factors should be taken into consideration when ergonomically redesigning the sewing machine workstation. Practical implications A new ergonomically redesigned sewing machine table can be incorporated into garment factories, taking into consideration the BMI of the operators to improve their productivity and reduce musculoskeletal disorder complaints due to incorrect operators’ posture. Originality/value An important correlation was found between the sewing operator’s anthropometric body measurement – BMI and the type of sewing machine (with significant R^2 = 0.8385 and 0.9764 with both the head and neck inclination angles O_H, O_N, respectively).
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Jeon, Se Kyung. "A Study on the Significance of Sewing Education." Korean Association of Practical Arts Education 36, no. 3 (September 30, 2023): 181–204. http://dx.doi.org/10.24062/kpae.2023.36.3.181.
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This study aimed to shed light on the significance and relevance of sewing education within the
context of elementary school education. The detailed considerations are as follows.
First, to establish a logical basis for positioning sewing education as an adaptable, culturally
relevant aspect of education, various functions and inherent values associated with sewing were
examined. Second, the study investigated the historical setting of the objectives of sewing education
within the school curriculum and found that various purposes of sewing education have been
actively included in the curriculum, particularly after the 2015 curriculum revision. Third, the study
emphasized the nature and importance of sewing education by assessing its feasibility from multiple
perspectives, including practical skill acquisition, creative education, character education,
sustainability, and maker education. Fourth, sewing education faces challenges in the digital age and
in a consumer-driven society, as well as entrenched gender role stereotypes. However, the study
argues that sewing holds meaningful potential as a well-balanced educational tool for promoting
emotional stability in the digital age and as a general education subject for both male and female
students. Lastly, the study suggested that the revival of the meaning of sewing education can be
achieved through implementing changes in sewing education classes, supporting them within the
school environment, and proposing efficient approaches and practices for enhancing sewing
education.
Given that this study has structured and explored the contents to re-examine the nature and
significance of sewing education and redefine its educational validity, it is recommended that future
research in the field of sewing education builds upon these findings and expands further.
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Midha, Vinay Kumar, V. K. Kothari, R. Chattopadhyay, and A. Mukhopadhyay. "Effect of Workwear Fabric Characteristics on the Changes in Tensile Properties of Sewing Threads after Sewing." Journal of Engineered Fibers and Fabrics 5, no. 1 (March 2010): 155892501000500. http://dx.doi.org/10.1177/155892501000500104.
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During sewing at high speed, the needle thread is subjected to repeated tensile stresses, heat, bending, pressure, torsion and wearing. These stresses act on the thread repeatedly and the thread passes 50–80 times through the fabric, the needle eye and the bobbin case mechanism, before getting incorporated into the seam. As a result both the sewing thread and the yarns in the fabric get abraded/ severed during the seaming process. A number of researchers observed that there could be 30% to 40% strength loss in the cotton needle thread after sewing. The extent of damage becomes more critical if the fabric being used is of a dense, thick and heavy construction. A number of studies have been carried out on thread strength loss after sewing, but the impact of fabric characteristics on thread strength loss is still unexplored. In this paper, the effect of weight and fabric composition of workwear fabrics, on the changes in the tenacity, breaking elongation and initial modulus of the needle thread has been studied. The tenacity and breaking elongation loss increase with increase in fabric weight for staple threads and remain unchanged for core spun threads. The loss in initial modulus increases for polyester threads as fabric weight increases, and decreases for cotton thread. When sewn on polyester-cotton fabric of same weight, the cotton thread shows decrease in tenacity and breaking elongation loss, whereas loss in initial modulus increases. The polyester core spun threads show exactly opposite change, i.e. tenacity and elongation loss increase and loss in initial modulus decreases when sewn on polyester-cotton fabric.
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THAO, PHAN THANH, and DUY-NAM PHAN. "IMPROVE BUILDING DATABASE ON THE OPERATION PROCESS AND PERFORMANCE TIME FOR SEWING OPERATIONS OF KNITTED GARMENT PRODUCTS." Fibres and Textiles 30, no. 4 (2023): 58–64. http://dx.doi.org/10.15240/tul/008/2023-4-007.
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This paper presents the findings of the study of building and completion of a standard database on the operation process and sewing time for 02 typical products from knitted fabrics, namely Polo-Shirt and TShirt. The study process is carried out based on applying MTM (Methods Time measurement) standard time analysis method and predetermined time system GSD (General Sewing Data). In this research, we have inherited the results from previous studies including Classifying the main parts sewing linkages, formulated sewing technology process and theoretical analysis of the process of manipulating sewing of the main parts, linkages of the 02 classical textile products including Polo-Shirt and T-Shirt by MTM standard time analysis method and GSD predetermined time system; The studies work of the group of authors on the experimental research content determines the simultaneous influence of a group of factors: distance to place the sewing element (cm), the rotation angle of the sewing element (˚), the size of the sewing element, the number of element layers involved in the sewing, the light intensity (lux) and the skills of sewing workers (grade worker) to the sewing time of knitting products and research simultaneous influences of a group of technological factors including: seam length (cm) and stitches per centimeter (stitches/cm), experiment on 4 sewing devices such as 1-needle lockstitch machine, overlock machine (1 needle and 3 threads) and (2 needles and 4 threads), coverstitch machine (2 needles and 3 threads); and with 3 kinds of single jersey fabrics, which are thin, medium, and thick fabrics to sewing time on the machine of Polo-Shirt and T-Shirt products. The above research results show that there is a big difference between the actual values and theoretically calculated values according to MTM method, GSD predetermined time system, the authors have determined a set of adjustment coefficients for the former and the latter for two values of sewing preparation operation time and sewing time on the machine. We have tested the above research results in 03 enterprises: Hanoi Star Fashion Co., Ltd., Tinh Loi Garment Company and Ha Nam Hanosimex Company Limited and received a lot of practical comments from businesses.
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Osawa, Masanori. "Characteristics of Sewing Technique by an Electric Sewing Machine." Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) 38, no. 3 (1985): P159—P165. http://dx.doi.org/10.4188/transjtmsj.38.3_p159.
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NAKANO, Motonari. "Technology for High-speed Sewing of Industrial Sewing Machine." Journal of the Society of Mechanical Engineers 110, no. 1066 (2007): 674–75. http://dx.doi.org/10.1299/jsmemag.110.1066_674.
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Nemeša, Ineta, and Marija Pešić. "Blindstitch sewing machines in the world sewing equipment market." Tekstilna industrija 72, no. 1 (2024): 44–49. http://dx.doi.org/10.5937/tekstind2401044n.
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The blindstitch sewing machine are used for different sewing operations: hemming and felling operations, beltloop manufacturing, padding, spot tacking, blind stitching of double side/face seams. The web-sites of sewing equipment producers were analyzed to see the availability of blindstitch sewing machines in the world's market. 68 manufacturers from 143 researched companies produce one or more types of blindstitch sewing machines. The blindstitch machines of stitch 103 are manufactured the most often. The machines of stitch class 300 are developed for specific applications manufacturing men suits. The companies Strobel and Maier are most well known blindstitch machine manufacturers. The company Strobel has widest offer of class 300 blindstith machines. The company Maier produces sewing machines for industrially manufactured and tailored clothing, as well as, for manufacturing home and technical textile goods.
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Amir, Muhammad. "Sustainable solution of sewing thread attributes on seam pucker." Mehran University Research Journal of Engineering and Technology 42, no. 3 (July 20, 2023): 25. http://dx.doi.org/10.22581/muet1982.2303.03.
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Bending rigidity magnitude of sewing thread provides a sustainable solution on the appearance of single needle lock stitched lightweight woven fabrics which are prone to pucker. Comparison of sewing thread bending rigidity with thread count, thread diameter, thread cyclic recovery and their resultant implication in the single lock stitched assemblies were given less consideration for the prediction and reduction of seam pucker severity. The resultant implication of physical and mechanical properties of sewing thread with rising trend of static thread tension magnitude at lock stitched sewing machine has significant impact on lightweight lock stitched fabric assemblies to predict and elude seam pucker. The present research is focused to investigate impact of the thread bending rigidity on count, diameter and cyclic recovery at 4th cycle of four cores spun sewing threads. The study concluded that sewing thread bending rigidity has high coefficient of determination of sewing thread; diameter (R2 =0.81), count (R2 =0.73) and cyclic recovery (R2 =0.77). Single needle 400 lock stitched samples of two cores spun sewing threads (t2 and t4) were prepared with ten plain weave lightweight woven fabric samples prone to pucker at four different static needle thread tensions. It is also established that combined effect of sewing thread static tension and cyclic recovery at sewing machine has significant coefficient of determination (R2>0.85 at low static thread tension and R2>0.73 at very high static thread tension) to predict and elude seam pucker severity. Research finding provides a sustainable solution to select the fine count sewing thread attuned with lightweight woven fabrics prone to pucker severity. It was observed that the Fine count sewing thread has lowest bending rigidity and 4th cyclic recovery magnitudes (R2 close to 1) to reduce or predict pucker severity for prone to pucker plain weave lightweight woven fabrics at minimum static thread tension (25gf ) on single needle lock stitched sewing machine (R2>0.81).
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Hadijah, Idah, Agus Hery Supadmi Irianti, Nurul Aini, Rizky Yulianingrum Pradani, Nurlaila Indra Sapitra Wahyu Ilyasari, and Wimma Septiana Dwi Anggraini. "Development of innovative learning media based on video applications in the introduction to the usage of sewing tools course for fashion students in the state university of malang." International Journal of Scientific Research and Management 10, no. 04 (April 27, 2022): 840–45. http://dx.doi.org/10.18535/ijsrm/v10i4.ec06.
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The media make it easier for students and lecturers in the student-centered online teaching and learning process, in sewing equipment courses. it is necessary to develop learning media based on video tutorials for operating high speed sewing machines to facilitate online learning. The purpose of this research is to develop three applicable video tutorial products (VTA) namely (overlock sewing machine operation, overdeck sewing machine operation, and buttonhole machine operation). The method used is the ADDIE learning media development model. The results from expert's validation related to media 73.8%, related to material category 96. 8%, and feasible category 89.01%.. The discussion of applicative video tutorials for the operation of overlock sewing machines, overdeck sewing machines, and buttonhole machines begins with the initial display/opening, presentation of sewing machine operation material, ends with assignments/practice. Video displays are made to facilitate and improve students' understanding and motivation in learning. This is because video is one of the efforts to increase understanding and interest in learning for students, which is a technology for capturing, recording, processing, transmitting and rearranging moving images, which are related to vision. and hearing, so that the video is suitable to be used for learning the introduction/use of sewing machines in sewing equipment courses.
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Patel, Nisarg, and Hemal Patel. "Functional Evaluation of Lower Extremity Performance in Sewing Machine Operators: An Assessment Study." International Journal of Health Sciences and Research 13, no. 7 (July 4, 2023): 177–81. http://dx.doi.org/10.52403/ijhsr.20230725.
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BACKGROUND: Musculoskeletal disorders have been progressively common throughout the world. It is one of the most common work-related disorders in sewing machine operators. Sewing machine involves continuous, repetitive task like foot paddling, pressing and working in this faulty posture for a long time increases chance of developing work related musculoskeletal disorder among them. So, the aim of study is assessment of lower extremity function in sewing machine operators. METHODS: An observational study was conducted in the sewing machine operators of Ahmedabad city. Lower Extremity Functional Scale (LEFS) questionnaire were filled from 104 sewing machine operators of both the gender between age group of 25 to 45 through online Google forms. Ethical clearance has been taken. RESULT: The Statistical analysis of this study shows that Components No.2 (Quite a Bit of Difficulty) of LEFS had the most number of response (Mean±SD=40.38±15.74). The result of the study shows that 54.77% of sewing machine operators has difficultly in lower extremity function. CONCLUSION: The study concluded that 54.77% of Sewing Machine Operators had Moderate to Higher Difficulty in Lower extremity function. Appropriate strategies should designed to improve the lower extremity function of sewing machine operators like Self stretching exercises, Physical fitness training, Ergonomic advice, etc. Key words: Lower extremity function, Sewing machine operators.
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Brubacher, Laura Jane, Cate E. Dewey, Naomi Tatty, Gwen K. Healey Akearok, Ashlee Cunsolo, Sally Humphries, and Sherilee L. Harper. "“Sewing Is Part of Our Tradition”: A Case Study of Sewing as a Strategy for Arts-Based Inquiry in Health Research With Inuit Women." Qualitative Health Research 31, no. 14 (October 4, 2021): 2602–16. http://dx.doi.org/10.1177/10497323211042869.
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In this article, we present a case study of sewing as a strategy for arts-based inquiry in health research, situated within a broader project that highlighted Nunavut Inuit women’s childbirth experiences. Five focus groups were hosted as sewing sessions with pregnant women ( N = 19) in Iqaluit, Nunavut (2017–2018). Women’s reflections on the sessions, and the significance of sewing to Inuit, were integrated with researchers’ critical reflections to examine the value of sewing as a strategy for arts-based inquiry within a focus group method: results related to the flexibility of the sessions; how collective sewing created space for voicing, sharing, and relating; sewing as a tactile and place-specific practice tied to Inuit knowledge and tradition; and lessons learned. Our results underscore the possibilities of arts-based approaches, such as sewing, to enhance data gathering within a focus group method and to contribute to more locally appropriate, place-based methods for Indigenous health research.
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Maeyeni, Ida, Agus Zainal Ramat, and Ririn Gusti. "PEMASARAN PRODUK MENJAHIT PADA PROGRAM PKBM MEKAR SARI." Journal Of Lifelong Learning 2, no. 2 (January 13, 2020): 89–100. http://dx.doi.org/10.33369/joll.2.2.89-100.
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The objectives of this study were: (1) Knowing the Background of the Sewing Program at PKBM Mekar sari (2) Knowing the Implementation of Sewing Learning at PKBM Mekar Sari (3) Knowing the Marketing of Sewing Products in the Mekar Sari PKBM Program (4) Knowing the Profit and Loss Calculations of Sewing Businesses in PKBM Mekar Sari. Research methods used qualitative methods with descriptive approaches. The participants of the study were Ibuk Titin Sumarni Anjani as Chairman of PKBM Mekar Sari and Simultaneously sewing coach, Ibuk Wulan Widia Astuti as sewing coach, and Siasmawati as sewing coach and Secretary. Dara collection techniques used were non-participant observation, structured interviews, and documentation. To test the validity and reliability of data using triangulation of sources, , techniques, and time. Based on the analysis that has been carried out that the sewing program in PKBM Mekar sari Padang Kedondong Village, Tanjung Kemuning District, , Kaur Regency includes a sewing program. During the implementation of 2x week activities, the coach's role coordinates in the activity, the funds obtained from the Government budget, while the supporting factors of the facility while inhibiting the lack of financial factors.Innovative business carried out by time discipline. Then the supervision is carried out by the trainer directly by observing the activities carried out once every two weeks of training.Keywords: Program, To Sew, PKBM.
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Emilda, Emilda, Try Wulandari, and Shafiera Lazuarni. "Pelatihan Keterampilan Menjahit Masker Kain Dalam Memanfaatkan Peluang Bisnis Era Pandemi Covid-19." Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal 4, no. 2 (May 4, 2021): 111–20. http://dx.doi.org/10.33330/jurdimas.v4i2.926.
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Abstract: Nowadays, medical mask is difficult to find in several pharmacies in Palembang. This situation could be a promising business opportunity during the Covid-19 epidemic. The target partners in this activity are residents of Gang Sei Saling, Siring Agung Sub-district, Ilir Barat 1 District, Palembang. This PkM activity aims to provide cloth mask sewing skills to take advantage of business opportunities during the Covid-19 pandemic. The method used in this activity is the training method. The sewing training activities consist of two types of activities, namely the presentation of sewing theory and practical training on sewing cloth masks. The presentation is going to explain about sewing theory, sewing concepts, tools and equipment needed in sewing, types and selection of fabrics. Meanwhile, training for sewing cloth masks, undoing the practice of operating a sewing machine, making cloth mask patterns, cutting patterns, sewing cloth masks, and finishing. In this PkM activity, participants not only provided skills in sewing cloth masks, but also at the finishing step such as folding and packaging. Keywords: cloth masks; sewing; training Abstrak: Dengan adanya kelangkaan masker medis yang mulai sulit ditemukan di apotek Palembang, hal ini menjadi peluang bisnis di masa pendemi Covid – 19. Target mitra dalam kegiatan ini adalah Warga Gang Sei Saling, kelurahan Siring Agung, kecamatan Ilir Barat 1, Palembang. Kegiatan PkM ini bertujuan memberikan keterampilan menjahit masker kain untuk memanfaatkan peluang bisnis pada saat pandemi Covid – 19. Metode yang digunakan dalam kegiatan ini adalah metode pelatihan. Kegiatan pelaksanaan pelatihan menjahit ini terdiri dari dua jenis kegiatan yaitu pemaparan teori menjahit dan pelatihan praktek menjahit masker kain. Pemaparan teori menjahit terdiri konsep menjahit, peralatan dan perlengkapan yang dibutuhkan dalam menjahit, dan jenis dan pemilihan kain. Sedangkan kegiatan pelatihan praktek menjahit masker kain terdiri dari praktek mengoperasikan mesin jahit,membuat pola masker kain, menggunting pola, menjahit masker kain, dan finishing. Dalam kegiatan PkM ini, peserta tidak hanya diberikan keterampilan menjahit masker kain, tetapi juga hingga tahap finishing seperti melipat dan mengemas masker kain.Kata kunci: masker kain; menjahit; pelatihan
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M, Mohammadian. "Musculoskeletal Disorders Prevalence among Sewing Machine Operators of Sewing Workplaces in Kerman City." Ergonomics International Journal 8, no. 1 (January 23, 2024): 1–7. http://dx.doi.org/10.23880/eoij-16000320.
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Work-related musculoskeletal disorders are one of greatest occupational problems in industrialized and developing countries, and whereas becoming switches to major challenge between worker and employers. The aim of present study was determination the prevalence musculoskeletal disorders among sewing machine operators of sewing workplaces in Kerman. In this cross-sectional study, 297 workers that working in 170 sewing workplaces in Kerman as research population by census method were selected. Nordic Questionnaire was used for data collection. The data were analyzed using Chi-square statistical test under SPSS 16 software. In this study 50.5 percent of subjects in the past 12 months and 34.3 percent of them in during one week before the study had experienced discomfort or pain at least in one body part. Highest frequency symptoms of musculoskeletal disorders was observed in lower back, later than the lower back, knee, upper back, neck and ankles had highest frequent. Also, in this study a significant relationship between musculoskeletal disorders of lower back, shoulder, neck and tailors work experience were obtained. Results of this study did show that workplace is the most important cause of the incidence musculoskeletal disorders in tailors under research. Therefore, the interventional programs include optimizing the design of workstations and chairs used in sewing workplace and also providing ergonomic principles training courses for improving work conditions of workers that working in sewing workplaces should be considered.
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Xu, Tong Hong, and Hong Sun. "The Influence of Dimensional Stability on Overfeed Sewing Shrinkage of Wool Fabric." Advanced Materials Research 796 (September 2013): 593–97. http://dx.doi.org/10.4028/www.scientific.net/amr.796.593.
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In order to analyze the influence of dimensional stability on overfeed sewing shrinkage of wool fabric, the paper used theoretical analysis equation to evaluate and overfeed sewing shrinkage of wool-type fabrics and took water shrinkage as index of dimensional stability to analyze its influence on overfeed sewing shrinkage characteristic value such as connection length, fabric connection length ratio. The research revealed the relationship of dimensional stability and overfeed sewing shrinkage, and derived calculation method of oblique shrinkage based on analysis of warp and weft shrinkage. It provided the theory reference on sewing quality of wool fabric in apparel manufacture and use.
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RUBANKA, Mykola, Volodymyr DVORZHAK, Alla RUBANKA, Oleh POLISHCHUK, and Serhiy HORIASHCHENKO. "INNOVATIVE TECHNOLOGIES IN THE PRODUCTION OF SEWING PRODUCTS: CUTTING PRODUCTION." Herald of Khmelnytskyi National University. Technical sciences 315, no. 6(1) (December 29, 2022): 188–97. http://dx.doi.org/10.31891/2307-5732-2022-315-6-188-197.
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The article considers the technological process of production of the cutting department of a sewing enterprise and the typical equipment used during such a process. It is revealed that the increase in the range of sewing products, the appearance of new materials, the speed of changing models, methods of processing, etc., necessitates a systematic search for rational and effective solutions for the technological process of production, including through the introduction of modern innovative equipment. The most used standard equipment of the cutting department of a sewing enterprise has been analyzed. The main requirements for the equipment involved in the technological process of production of the cutting department of a sewing enterprise have been determined. Also, the ways of possible improvement of the cutting department of a sewing enterprise have been outlined. The object of the research is a typical cutting department of a Ukrainian sewing enterprise, i.e. the technological process of production and the equipment used during such process. The method of system analysis is used. Theoretical studies are based on the main provisions of light industry production technologies. A generalized classification scheme of the standard equipment of the cutting department of a sewing enterprise has been developed, which can be used at light industry enterprises, in particular the cutting department of a sewing enterprise, when choosing energy-efficient and high-tech equipment. Also, the main problems that need to be solved for the successful development of an average sewing enterprise are outlined. The results of the study can be used in the design of new and modernization of existing cutting departments of sewing enterprises.
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Zhang, Liming, Xiaohua Wang, Haoyi Wang, and Pengfei Li. "A vision-based robotic system following the human upper-limb sewing action." Mechanical Sciences 14, no. 2 (August 31, 2023): 347–59. http://dx.doi.org/10.5194/ms-14-347-2023.
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Abstract. In human–robot collaborative sewing, the robot follows the sewing action of a worker to complete the corresponding sewing action, which can enhance production efficiency. When the robot follows the sewing action of the worker through interactive information, it still faces the problem of low accuracy. In order to improve the accuracy of the robot following the sewing action, a human upper-limb sewing-action-following system based on visual information is designed in this paper. The system is composed of an improved OpenPose model, Gaussian mixture model (GMM), and Gaussian mixture regression (GMR). In the system, an improved OpenPose model is used to identify the sewing action of the human upper limb, and the label fusion method is used to correct the joint point labels when the upper limb is covered by fabric. Then the GMM is used to encode each motion element and time to obtain the regression work of the Gaussian component. GMR is adopted to predict connections between moving elements and generate sewing motion trajectories. Finally, the experimental verification and simulation are carried out in the experimental platform and simulation environment of the collaborative robot. The experimental results show that the tracking error angle can be controlled within 0.04 rad in the first 2 s of robot movement. Therefore, it can be considered that the sewing-action-following system can realize higher precision and promote the development of human–robot collaboration technology to a certain extent.