Relevant bibliographies by topics / Dyeing and bleaching

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Dyeing and bleaching'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Dyeing and bleaching"

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Arifoglu, Mustafa, and William N. Marmer. "Sequential Oxidative/Reductive Bleaching and Dyeing of Wool in a Single Bath at Low Temperatures." Textile Research Journal 62, no. 3 (March 1992): 123–30. http://dx.doi.org/10.1177/004051759206200301.

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A new bleaching and dyeing process applicable to wool involves a sequential oxidative/reductive bleaching combined with a subsequent dyeing in a single bath. Apart from dyebath bleaching processes in which the bleaching agent is added towards the end of the dyeing process when almost all the dye is exhausted, bleaching and subsequent dyeing are normally done in separate baths due to the sensitivity of the dyes to bleaching agents. In the latter process, it is important that all bleaching agents be thoroughly washed off before dyeing, because any residual bleaching agent (hydrogen peroxide, reductive bleach) may adversely affect the results. The newly developed single-bath process begins with an oxidative hydrogen peroxide bleaching followed by addition of thiourea to the residual hydrogen peroxide in the same bath. Thiourea dioxide formed by the resulting chemical reaction hydrolyzes in solution to sulfonate anion and urea. Sulfinate anion is a strong reducing agent and effects reductive bleaching. At the end of the reductive bleaching stage, a small amount of hydrogen peroxide is added to oxidize all the reductive sulfur species in solution to the sulfate anion, which together with the urea serves subsequently as a dye assist. Once the temperature of the bath is lowered, dyes may be added to the same bath. The new sequential single-bath bleaching/dyeing process results in much brighter pastel shades upon dyeing, due to better whiteness obtained initially with sequential oxidative/reductive bleaching. Furthermore, there is a reduction in processing time, temperature, and effluent compared with conventional procedures and the utilization of byproducts from the initial bleaching assists during the subsequent dyeing step.
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Maguire, Peter. "Cop Dyeing and Bleaching." Journal of the Society of Dyers and Colourists 22, no. 6 (October 22, 2008): 190–92. http://dx.doi.org/10.1111/j.1478-4408.1906.tb00376.x.

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Maguire, Peter. "Cop Dyeing and Bleaching." Journal of the Society of Dyers and Colourists 22, no. 9 (October 22, 2008): 278–82. http://dx.doi.org/10.1111/j.1478-4408.1906.tb00381.x.

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Zhu, Lei, Jun Li Chen, Qiu Bao Zhou, Jin Huan Zheng, and Wei Guo Chen. "Union Dyeing of Soybean Protein Fiber/Wool Blends." Advanced Materials Research 332-334 (September 2011): 1421–24. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1421.

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Protein fibers are attractive topics in the past decades. Among them, soybean protein fiber, the regenerated protein-base fiber, is very popular due to its luster, smooth surface, breathability, and comfort. In order to blend with wool and reach union dyeing, soybean protein fiber was first bleached due to its yellow appearance. Various bleaching processes were introduced in this paper. Reactive dyes for cellulose and for wool, such as Unisol or Megafix dyes, together with proper dyeing process were selected and compared. The results showed that one-time oxidation bleaching is confirmed as the bleaching process due to its compromise of high whiteness and bursting strength. It is unable to reach union dyeing for soybean protein fiber/wool fiber with Unisol or Megafix dyes respectively while it is feasible to reach union dyeing of soybean protein fiber/wool fiber dyeing with Unisol dyes followed by Megafix dyes.
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He, Wen Juan, Jia Guang Meng, and Ya Wei Wang. "Studies on Bleaching and Scouring of the Jade Fiber Knitted Fabric." Applied Mechanics and Materials 184-185 (June 2012): 1211–15. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.1211.

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The knitted pretreatment has a great influence on the dyeing process. It should adopt different pretreatment process for different material. As the article selects jade fiber and cotton blended yarn to achieve good dyeing effect，the scouring is considered as the first and then bleaching. This article mainly studies the bleaching process.
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Wang, Jun Hua, Jian Feng Di, and Yong Tang Jia. "Investigation of Cotton Dyeing with Enzyme-Oxygen-Pretreatment/Reactive Dyes in one-Bath." Advanced Materials Research 233-235 (May 2011): 903–8. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.903.

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Desizing-scouring-bleaching-dyeing of cotton fabrics in one-bath was discussed in this paper. The appropriate reactive dyes, refined enzyme and H2O2 elimination agent and dyeing technology parameters were selected preciously and the optimum conditions were obtained: H2O2 (30%) 4 g/L, refined enzyme 2 g/L, Na2SiO3 2g/L, Peregal O 1 g/L, bath ratio 1:20, scoring and bleaching at 95°C for 45min. Then, adding sulfourea 12g/L, controlling pH 7, adding reactive red dye 3BS 3% in raffinate, dyeing at 35°C for 30min and fixing at 70°C for 30 min. Compared the one-bath process with the traditional one, the former can get similar performance on dyeing. In addition, the former shows such advantages as short time, high efficiency, low energy consumption and reduced sewage emission. “One-bath” dyeing process is a promising approach to replace the old one.
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Tzanov, T., S. Costa, G. M. Guebitz, and A. Cavaco-Paulo*. "Dyeing in catalase-treated bleaching baths." Coloration Technology 117, no. 1 (January 2001): 1–5. http://dx.doi.org/10.1111/j.1478-4408.2001.tb00327.x.

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Nabiyeva, Iroda, Dilnoza Matkarimova, Zulaykho Islamova, and Anvar Abdumajidov. "Properties of wool fiber, and environmental problems and solutions of its finishing." E3S Web of Conferences 538 (2024): 04006. http://dx.doi.org/10.1051/e3sconf/202453804006.

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Making wool and wool products is a very complicated process. "Hisori" sheep wool belongs to the group of coarse fibers, it is mostly brown in color, and contains a large amount of waste materials. The rational technologies of washing, discoloration-bleaching and dyeing processes for the production of clothing products from coarse wool fiber in the textile industry have not been sufficiently resolved. In this scientific work, an effective technology for washing coarse wool fiber and decolorizing it, are proposed. In this case, the quality of brown wool bleaching process was evaluated by yellowness index and whiteness level. After a two-stage decolorization-bleaching process, the whiteness level increased from 45% to 74%. The possibility of using a natural dye – Carmine for dyeing bleached wool has been studied. By researching the technological factors of the process of dyeing wool with carmine, it was shown the possibility of creating strong and bright colors with the help of mordant salts. Reducing agents were used to solve the problem of ensuring the reversibility of the colors produced by the bleaching agents according to their nature and the initial color of the wool, and sodium hydrosulfite was used as a reducing agent.
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Chattopadhyay, S. N., N. C. Pan, and A. Day. "Ambient-temperature Bleaching and Reactive Dyeing of Jute: The Effects of Pre-treatment, Bleaching, and Dyeing Methods." Journal of the Textile Institute 93, no. 3 (January 2002): 306–15. http://dx.doi.org/10.1080/00405000208630572.

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Lu, Danting, Xianqing Xiong, Guozhen Lu, Chengsheng Gui, and Xiaoren Pang. "Effects of NaOH/H2O2/Na2SiO3 Bleaching Pretreatment Method on Wood Dyeing Properties." Coatings 13, no. 2 (January 19, 2023): 233. http://dx.doi.org/10.3390/coatings13020233.

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Bleaching is a common modification method widely used in the industrialization of wood dyeing. Bleaching can regulate the color of the wood, and it also has great effects on the subsequent wood dyeing properties. In this work, three woods, Ayous, Linden, and Poplar, were processed by using the NaOH/H2O2/Na2SiO3 bleach pretreatment method. Then, the pretreated wood and untreated wood were stained separately by means of water bath dyeing with three dyestuffs: blue anthraquinone and red and yellow double-azo dyestuffs. The study mainly focused on the effect of the bleach pretreatment on the color control and dyeing properties of the wood by analyzing the color difference, staining rate, and final dyeing rate of the dyed wood. The results were as follows: For the color difference, the L* and h* values showed increasing tends, while the a*, b*, and c* values showed decreasing trends. For the staining rate, Ayous reached an equilibrium staining rate at 3~4 h, but for the others, this was not obvious. For the dyeing rate, red and blue Linden veneers and blue Ayous veneers were similar to the unbleached ones, while the final dyeing rate of the other veneers was less than that of the original wood, and the staining rate of the Ayous red and yellow veneer, Linden yellow veneer, and Poplar veneer was less than that of the original wood. The final dyeing rate of the Ayous red and yellow veneers, Linden yellow veneer, and Poplar red, yellow and blue veneers decreased by 4.54%, 2.91%, 5.45%, 10.75%, 2.66%, and 9.55%, respectively. In general, the bleach pretreatment made the staining color of the material surface uniform. The dyeing rate increased due to the increase of the veneers’ permeability. Thus, the veneers quickly reached the equilibrium staining rate, but the equilibrium staining rate of some test pieces decreased. This work provides scientific support for the dyeing process.
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Dissertations / Theses on the topic "Dyeing and bleaching"

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Choi, Kit-hing. "The bleaching and dyeing industry in Hong Kong : environmental problems and some solutions /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18735988.

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Thompson, Kimberlee Fay. "The role of singlet oxygen in the bleaching of cotton." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/8680.

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Dayla, Mackraj. "Environmentally friendly dyeing and finishing." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020776.

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The textile industry in South Africa is a significant contributor to the chemical load that public wastewater treatment plants have to process, and the discharge of toxic substances, especially to the aquatic environment. In order to address this issue at factory level, the processes at a textile plant, JMV Textiles were chosen for investigation into the possibilities of minimization of discharges of harmful substances into the environment. The study followed the principles of cleaner production, and the processes that were investigated and revised were: The conventional peroxide bleaching process employed a peroxide stabilizer that did not biodegrade easily. The bleaching process was changed, so that the prevailing conditions in the fabric and dyebath facilitated bleaching without the addition of peroxide stabilizer, and also reduced the alkali and energy requirements. Polyester‐viscose fabric was pretreated by bleaching with hydrogen peroxide, which seemed to be unnecessarily rigorous, because polyester and viscose, unlike natural fibres, are relatively clean and have good whiteness in comparison with natural fibres. The proposed alternate pretreatment was a scour with detergent and alkali. The pretreatment for all polyester‐cotton fabrics was also a hydrogen peroxide bleach. Due to the ability of medium and dark shades to mask the natural tint of cotton fibres, a simpler alternate pretreatment, consisting of an alkaline scour with sequestering agent, was trialled. An unacceptable proportion of the dyeings on polyester was rejected for dye‐stains and dye‐marks. A possible solution exploited the properties of using the finishing auxiliary chemical to alleviate dye‐stains and dye‐marks during the dyeing stage, instead of using the chemical after dyeing. The highly toxic carrier that was used to facilitate level dyeing of polyester fibres that had unacceptable variation in their dyeing properties, was replaced by a less toxic carrier. The formulation for dyeing polyester was simplified to eliminate the auxiliary chemicals that were not essential to the dyeing process. Pale reactive dyed shades on cellulose and polyester‐cellulose were washed off only with hot water instead of detergent. The revised procedures consequential to the study, offered significant environmental benefits by reducing the concentration and volume of effluent produced, substituting a highly toxic carrier with a less toxic one and saving energy and water. Implementation of the suggested changes also offered financial benefits. The management of the factory, however, accepted and implemented some changes, but wanted further investigations for others and a phased approach to the other suggested changes.
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Choi, Kit-hing, and 蔡結馨. "The bleaching and dyeing industry in Hong Kong: environmental problems and some solutions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31253726.

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Smith, Robert A. W. "The role of monoethanolamine in hair bleaching and dyeing : mechanistic insights from model formulations." Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/8316/.

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Primarily, the focus of this project was to investigate hair bleaching and dyeing mechanisms, in the presence of ammonia or ethanolamine (MEA), at room temperature. Firstly, the mechanism of hair bleaching by alkaline hydrogen peroxide was explored, using homogeneous solutions of Sepia melanin free acid (MFA) as a model for hair melanin. UV-vis spectroscopy was applied to study the rate of melanin bleaching under various conditions. It was established that both hydroxyl radicals and perhydroxyl anions are involved in the bleaching of melanin. Hydrogen peroxide decomposition and Sepia melanin oxidation were then monitored using homogenous model bleaching solutions, to see if differences in hair bleaching when MEA is used instead of ammonia could be explained by a change in chemistry. Dissimilarities were found in ligand-free and etidronic acid (HEDP) systems when the base was altered, due to the presence of differing metal complexes. However, when strong chelating ligands such as ethylenediaminetetraacetic acid (EDTA) are used, no differences were apparent in homogenous model bleaching systems. The mechanism of dye formation inside hair fibres was then investigated, due to the observation that catalase accelerates the oxidation of dye primaries in aqueous solutions. Dye formation was studied by UV-vis spectroscopy. It was shown that metal ion centres are predominantly responsible for the formation of dyes in the hair cortex. Fe(III) proved to be a more effective catalyst for dye production than Cu(II). Finally, the effect of MEA on the rate of hair dye formation in aqueous systems was studied, using HPLC and UV-vis spectroscopy. The rate of colour formation in MEA based formulations was found to be greater than in ammonia systems, possibly due to slower degradation of the dyes in MEA systems. It was also found that nucleophilic attack of MEA on preformed dye molecules leads to the formation of different dyes, which incorporate the base into their structure. The formation of these dyes greatly changes the colour of model aqueous dye solutions.
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Chin, Man-yi Maggie. "Provision of industrial land for Industries with special infrastructure requirements : a case study of bleaching and dyeing industry /." [Hong Kong : University of Hong Kong], 1992. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13357736.

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Furn, Kristina. "Effects of dyeing and bleaching industries on the area around the Orathupalayam Dam in Southern India." Thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88862.

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Rural people around the 4 km2 Orathupalayam Dam in southern India live in one of India’s most polluted areas. The people were once restricted mainly by scarcity of water but today they cannot drink their well water or cultivate their soil. The dam, created to store floodwater from the Noyyal River, also stores effluent water from the more than 700 dyeing and bleaching industries situated in the town of Tiruppur, 20 km upstream. Although most industries have treatment plants they do not treat total dissolved solids (TDS) and thus NaCl becomes one of the major components of the effluent. 75 to 100 million litres of effluents are released every day.

Through water sampling in open and bore wells, and with the help of GPS, ArcView and Surfer it could be concluded that high TDS levels and concentrations of Cl-, Ca2+, Mg2+ and Na+ were associated with the dam. A definite spatial pattern of the spreading of polluted water could be determined. Water from the dam was fed to the ground water all around the dam and also affected the groundwater more than 4 km to the southeast. Soil samples and interviews with farmers made it clear that land irrigated with dam water or affected well water soon became uncultivable. The water destroyed the soil structure and seeds did not germinate after irrigation with polluted water.

Through interviews it could be concluded that the local people around the dam paid a large part of the externalities of the polluting activities of the textile industries in terms of negative health effects and lost agricultural land, water resources, fishing and working opportunities. These problems have mostly been caused by the high salt concentration in the effluents but it is unclear to what extent other substances have caused or might cause harmful effects to the environment, people and animals.

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Chin, Man-yi Maggie, and 錢敏儀. "Provision of industrial land for Industries with special infrastructure requirements: a case study ofbleaching and dyeing industry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1992. http://hub.hku.hk/bib/B31257902.

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Liang, Kuang-yu, and 梁光宇. "Study on Bleaching Treatment and Dyeing Properties of Da-jia Juncus Effusus Braid." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/60687046343870102325.

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Ngulube, Tholiso. "Removal of cationic and anionic dyes from aqueous solution using a clay-based nanocomposite." Thesis, 2019. http://hdl.handle.net/11602/1415.

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PhDENV
Department of Ecology and Resource Management
Some industries such as textiles, ceramics, paper and printing are known to use significant amounts of dye to colour their products and during the colouring process, certain quantities of dyes are absorbed by the products, and some of them end up in wastewater. Depending on their application, some synthetic dyes are designed to be chemically or biologically resistant and their presence in the environment can cause severe environmental problems because of their colour impartation to water bodies. Therefore, proper treatment is required to remove these pollutants from wastewater before discharge into the environment. In this thesis, the potential of dye removal from wastewater by calcined magnesite, halloysite nanoclay and calcined magnesite - halloysite nanoclay composite was evaluated. To this end, the study was subdivided to four segments. The first segment of the study focused on evaluating the efficiency of using calcined magnesite to remove Methylene Blue (MB), Direct Red 81 (DR81), Methyl Orange (MO) and Crystal Violet (CV) dyes from aqueous systems using a batch study. To achieve that, several operational factors like residence time, adsorbent dosage, dye concentration and temperature were appraised. The adsorbent was subjected to different kinds of physicochemical characterization to determine the various characteristics that would assist in the dye uptake process. Characterization results showed that the adsorbent material was highly crystalline with magnesite, periclase, dolomite, and quartz as some of the crystalline phases. The batch study proved that calcined magnesite is effective in the treatment of dye contaminated water and moreover it performed well in terms of colour removal, though exceptional results were recorded for CV removal with complete decolourisation occurring in first few minutes of contact. In terms of experimental adsorption capacity, the performance of calcined magnesite was in the order CV (14.99 mg/g) > DR81 (12.56 mg/g) > MO (0.64 mg/g) > MB (0.39 mg/g). Mechanisms of adsorption where explained by fitting the experimental data into adsorption isotherms, kinetics, and thermodynamic parameters. Neither, the Langmuir, nor the Freundlich nor the Dubinin Radushkevich, nor the Temkin model could perfectly describe the adsorption of the four dyes onto calcined magnesite, however adsorption kinetics obeyed the pseudo second order model, implying that, the dye removal process was primarily a chemical process. In accordance with the results of this study, it can be concluded that calcined magnesite can be used effectively for the removal of dyes in aqueous solution and thus can be applied to treat wastewater containing dyes. The second segment of the study focused on the removal of MB, DR81, MO and CV dyes by halloysite nanoclay. Physicochemical characterisation revealed that the nanoclay has a surface area of 42 m²/g and its ABSTRACT iv morphology is predominated by tubular structures, which exhibit some hollow rod like structures. Various important parameters namely contact time, initial concentration of dyes, dosage, solution temperature and solution pH were optimized to achieve maximum adsorption capacity and it was observed that the effect of initial pH and temperature of the aqueous solution was neglibible on removal of the four dyes. The experimental adsorption capacities towards 40 mg/L of MB, DR81, MO and CV dyes were 17.51, 14.11, 0.38, and 4.75 mg/g respectively. The results indicate that natural halloysite nanoclay is an efficient material for the removal of the selected dyes. Due to its low cost and non-toxicity, halloysite nanoclay can be considered a good replacement option of other high cost materials used to treat coloured wastewater especially in developing countries like South Africa. Having observed the performance of calcined magnesite and halloysite nanoclay individually in the removal of selected dyes, a third study was designed with the aim of preparing a nanocomposite adsorbent from the aforementioned adsorbent materials and then evaluating the synergistic influence of the mechanochemical modification by a ball miller on the removal of MB, DR81, MO and CV dyes. Physicochemical characterization was carried out to get an insight of pre- and -post adsorption characteristics of the nanocomposite material and results showed major changes which could be an indication of dye uptake by the nanocomposite material. According to the results, the nanocomposite material outcompeted its component individual constituent materials i.e (calcined magnesite and halloysite nanoclay material) in the removal of DR81, which in turn was the highest removal efficiency observed for the whole batch adsorption study recording a maximum adsorption capacity and percentage removal of 19.89 mg/g and 99.40% respectively. Experimental results fitted the Langmuir and pseudo-second order models perfectly hence demonstrating that adsorption took place on a homogenous adsorbent layer via chemisorption. In overall, the results suggested that the nanocomposite is a suitable adsorbent for decolourising industrial wastewater. Based on the overall performance of the adsorbents in removing the four dyes, it was observed that the nanocomposite material had a high affinity for DR81 dye hence it was chosen as the model dye for further application in column studies. The effect of flow rate, bed height and initial dye concentration on the removal of DR81 was investigated. Maximum bed capacity and equilibrium dye uptake were determined and break through curves were plotted. Percentage dye removal increased with decrease in flow rate and increase in bed height. The maximum capacity of column was found to be about 51.73 mg DR81 per gram of the nanocomposite adsorbent for a flow rate of 3 mL/min, initial concentration of 10 mg/L and 4 cm bed height. Data from column studies was fitted to the Thomas model and Adams-Bohart models. The comparison of the R2 values obtained from both models showed a better fit for the nanocomposite material than the individual halloysite nanoclay and calcined magnesite materials. The study revealed the applicability of calcined magnesite- halloysite nanoclay composite in fixed bed column for the removal of DR81 dye from aqueous solution. v The reuse of an adsorbent is essential in order to make the adsorption process economic and environmentally friendly. To recover the adsorbate and renew the adsorbent for further use, a chemical method of regeneration was applied by using 0.1 M NaOH as the desorbent. Regeneration with 0.1 M NaOH proved very efficient for some dyes and less efficient for others depending on the adsorbent material used at the time. The general observation was that the adsorption capacity of the adsorbent materials decreased with successive adsorption – desorption cycles. Furthermore, regeneration with NaOH, favoured the acidic dyes (DR81 and MO) more than the basic dyes (MB and CV) possibly due to electrostatic interactions between oppositely charged molecules allowing for reversible reactions to take place. The three tested adsorbents namely calcined magnesite, halloysite nanoclay and their nanocomposite thereof were applied for the treatment of real wastewater effluent from a printing and ink industry. The adsorbents performed very well in terms of colour removal as recommended by the South African standards of wastewater discharge, However, in terms of pH, calcined magnesite and the nanocomposite produced a highly alkaline solution hence wastewater neutralisation by an acid is recommended before discharge. These findings show that the two natural clay-based materials (calcined magnesite and halloysite nanoclay) and their nanocomposite thereof have a great potential for application in dye wastewater remediation since the materials used in the process are inexpensive, abundant and require minimal modifications.
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Books on the topic "Dyeing and bleaching"

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Best, A. K. Dyeing and bleaching natural fly-tying materials. 2nd ed. Guilford, Conn: Lyons Press, 2004.

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Best, A. K. Dyeing and bleaching natural fly-tying materials. New York, N.Y: Lyons & Burford, 1993.

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Fernandez, Martha G. The haircoloring manual: A practical guide to successful haircoloring. Hialeah, FL: Good Life Products, Inc., 1992.

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Warren, Roxy A. Haircoloring in plain English. Albany, N.Y: Milady SalonOvations, 1999.

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Company, Milady Publishing. Milady's standard cosmetology: Haircoloring and chemical texture services. Clifton Park, NY: Milady/Cengage Learning, 2010.

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Miedes, José Luis López. Cambios de color en el cabello. [Madrid]: Videocinco, 2010.

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Sollock, Tom. Corrective haircoloring: A hands-on approach. Albany, N.Y: Milady Pub. Co., 1993.

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1947-, Esche Sharon, ed. Color your life-- with haircolor. New York: G.P. Putnam's Sons, 1985.

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Punches, Laurie. A step-by-step guide to cutting, perming, and highlighting children's hair. South Lake Tahoe, Calif: Punches Productions, 1989.

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Punches, Laurie. How to simply cut children's hair: A step-by-step guide to cutting, perming, and highlighting children's hair. South Lake Tahoe, Calif: Punches Productions, 1989.

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Book chapters on the topic "Dyeing and bleaching"

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Hussain, T. "Bleaching and Dyeing of Jute." In Reference Module in Materials Science and Materials Engineering. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-12-803581-8.04080-7.

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"19 Spinning, bleaching and dyeing." In Islamic Arts and Crafts, 146–51. Edinburgh University Press, 2017. http://dx.doi.org/10.1515/9781474409179-024.

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REDGROVE, H. STANLEY, and GILBERT A. FOAN. "THE TECHNIQUE OF HAIR-BLEACHING." In Hair-Dyes and Hair-Dyeing Chemistry and Technique, 121–27. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4832-3189-1.50026-1.

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REDGROVE, H. STANLEY, and GILBERT A. FOAN. "THE TECHNIQUE OF BLEACHING AND DYEING FOR POSTICHE." In Hair-Dyes and Hair-Dyeing Chemistry and Technique, 154–61. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4832-3189-1.50030-3.

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Korkmaz, Gürsel, Mehmet Kılınç, Nur Kılınç, and Y. Dilek Kut. "The Role of Surface Modification Methods for Sustainable Textiles." In Roadmap to Sustainable Textiles. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.112792.

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Sustainability aims to provide a livable future for the next generations. Studies on reducing high chemical, energy, and water consumption make significant contributions to sustainability in many sectors. The textile sector consists of many processes such as fiber production, yarn and fabric production, dyeing, and finishing processes. Each of these processes consumes a significant amount of water and energy. Cotton fiber production consumes approximately 1559 kg of fresh water per kg, and polyester fiber production consumes approximately 108 kWh of electricity per kg. Clean water consumption can be up to 200 L/kg in subsequent processes such as bleaching, dyeing, printing, and finishing. Surface modification techniques in textile production can play a role in sustainability, especially in areas such as reduction, reuse, and recycling. In this chapter, we aim to investigate the effects of surface modification techniques on reducing chemical, energy, and water consumption in textile production, improving textile performance properties, and altering the service life of textiles.
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Robson, Adam Henry. "Extension to other Trades and Manufactures— Print Works, Lace Factories, Bleaching and Dyeing Works." In The Education of Children Engaged in Industry in England 1833-1876, 108–43. Routledge, 2019. http://dx.doi.org/10.4324/9780429028854-4.

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Samanta, Pubalina. "Basic Principles of Colour Measurement and Colour Matching of Textiles and Apparels." In Colorimetry [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101442.

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This book chapter covers basic principles of quantitative measurement and analysis of surface colour parameters and surface appearance of undyed/dyed textile materials and finally matching of colours with standard samples of any textiles. Surface colour parameters of textile materials change with different chemical processing including bleaching, dyeing and finishing and need to measure it quantitatively for understanding the effect of different chemical processes/dyes and auxiliaries and finishes. So, CIE-1976 equations for measurement of Tristimulus values, surface colour strength, colour differences, Metamerism index, colour difference index as well as specific formulae for measuring Whiteness Index, Yellowness Index, Brightness Index and the theory of colour match prediction are discussed here. One Case study of colour match prediction for a specific case is also shown. Finally, the importance of single constant measurement of surface color parameters for coloured textiles and practical cares for database preparation and colour measurement and match prediction for textile and apparel products are deliberated. Apparel industry is very much dependent on colour psychology and colour preferences of customers in different seasons and occasions and hence, it is important to measure all surface colour parameters of textile materials to choose perfectly matched coloured textiles for making any garment.
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Raju, P. J., D. M. Mamatha, and S. V. Seshagiri. "Sericulture Industry." In Environmental and Agricultural Informatics, 366–87. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9621-9.ch017.

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India has a huge potential for sericulture development unlike other agro industries since sericulture is a unique agro-based industry comprising of several components such as mulberry cultivation, silkworm rearing, silk reeling and other connected activities. Each of these components appear to be independent but closely linked with one another having intricacies of their own. The major activities of these components comprises of mulberry food-plant cultivation to feed the silkworms which spin silk cocoons and reeling the cocoons for unwinding the silk filament for manufacturing silk goods, subjecting them to the process of degumming, bleaching, dyeing, weaving and printing. Thus sericulture industry provides employment to approximately 7.85 million in rural and semi urban areas in India. Of these, a sizeable number belongs to the economically weaker sections of the society, including women. In addition to this, India has the unique credibility of producing all the five known commercial silk viz., mulberry, tropical tasar, oak tasar, eri and muga of which muga with its golden yellow glitter is unique and prerogative of India. Though silk is a luxury item, it is produced by the rural populace and purchased by urban rich, causing money to flow from urban to rural. It also prevents rural people to migrate to urban areas. The United Nation's recent endeavor “Millennium Development Goals” has an eight point programme to make our earth more healthy wealthy and free from inequalities by 2015. Sericulture being a rural and women friendly business aligns well with many of these ideas which are explained in detail in the chapter.
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Gati Gupta, Biman. "Toxic Effluent Treatment by Membrane Based Ultrafiltration and Reverse Osmosis for Sustainable Management and Conservation of Ground Water in Industrial Clusters." In Electrodialysis. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92812.

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The present study attempts to assess the nature of effluents generated from textile bleaching and dyeing units located at Kalikapur area under Maheshtala region, West Bengal, India and to provide a sustainable management of ground water resources through installing CETPs with zero liquid discharge system. Effluent from medium, small and tiny units of this region is estimated at 2000 MLD. Studies with 40 units for 4 years (2012—2016) located in this area exhibited following mean values of different physic-chemical variables: pH (9), Biological Oxygen Demand (610 Mg/L), Chemical Oxygen Demand (1827 Mg/L), Total Dissolved Solids (6411 Mg/L), Total Suspend Solids (927 Mg/L) and toxic metals such as lead Pb (0.43 Mg/L), Chromium (0.031 Mg/L), Zinc (0.74 Mg/L), Nickel (0.07 Mg/L) and Cadmium (0.03 Mg/L). These finding of results surpass the standard allowable limits qualify by FAO (1985) and World Health Organization (2003). The waste water loaded with toxic trace metals is adversely affecting the environmental pollution and anthropomorphic eudemonia and also pollute the quality of both surface and ground water and consequently degraded agricultural and plant yield, vegetable and fruits and causes impairment to aquatic lives. Four to five Common Effluent Treatment Plants are urgently required to install at different areas of the Maheshtala cluster with a capacity of 500 MLD each, so that one in Kalikapur area, to manage sizeable volume of waste water (2000 MLD) and sustainable management of ground water resources in a thickly populated urban area near Calcutta, a principal city of India.
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Conference papers on the topic "Dyeing and bleaching"

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Onem, Ersin, and Ali Yorgancioglu. "Decolorization of Chromium and Dyeing Spots on Leather by Bleaching Agents." In The 6th International Conference on Advanced Materials and Systems. INCDTP - Division: Leather and Footwear Research Institute, Bucharest, RO, 2016. http://dx.doi.org/10.24264/icams-2016.iii.12.

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Görse, Esra, Mustafa Mancar, Nevin Ayvaz, and Güngör Durur. "Ecological Approaches in Yarn Dyeing." In 22th AUTEX World Textile Conference. Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-vwxk2w.

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In today's globalized world, rapid depletion of natural resources, increased air and water pollution, deforestation and climate change are major environmental problems for industrial activities. Many industrial activities contribute to environmental pollution by causing these problems. Therefore, it is of great importance to develop environmentally friendly production methods, reduce resource consumption and minimize environmental impacts. The yarn dyeing industry is a sector where natural resources are used intensively and environmental pollution problems are seen. Innovations in this sector aim to make production methods more sustainable. In particular, process reduction is an important step in reducing resource consumption and minimizing environmental impacts. This provides an important opportunity to conserve natural resources and produce environmentally friendly products. Therefore, with the increasing demand for ecological products, it is aimed to develop an environmentally friendly, sustainable and environmentally sensitive process in yarn dyeing. With the new process developed within the scope of the project, a dyeing study was carried out using the natural color of raw cotton yarn. The first bath pre-treatment we apply to raw cotton yarn allows us to make homogeneous dyeing. Thus, it was possible to reduce the need for some chemicals and natural resources that are harmful to nature. The new process developed within the scope of the project is gaining importance in the textile industry due to limited natural resources and increasing environmental problems. The aim of the project is to reduce the use of water, energy and chemicals by eliminating the bleaching step used in traditional yarn dyeing processes and to create an environmentally friendly product platform. In this way, with the increasing demand for ecological and sustainable products, customer expectations can be met and the company's environmental impact can be reduced. In addition, this new process, which saves energy and water, offers the opportunity to gain a competitive advantage by providing cost savings in the textile industry. Therefore, the new process developed sets an example for other businesses in the sector, benefiting both the environment and the operation of the company.
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Gupta, Biman Gati, Kamales M. Agrawal, and Jayanta Kumar Biswas. "Effects of Heavy Metals of Bleaching and Dyeing Effluent on Soil, Vegetables, and Fruits in the Maheshtala Region in West Bengal, India." In World Environmental and Water Resources Congress 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479865.003.

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