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1
Chan, Chi-tak. "The exploration of fabric trading format in textile industry /." [Hong Kong] : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13788000.
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McFarland, Elizabeth Gramling. "Infrared absorption characteristics of fabrics." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/10185.
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Thomas, Howard LaVann. "Analysis of defects in woven fabrics : development of the knowledge base." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/9185.
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Chasmawala, Rasesh Jayantilal. "Studies on the effect of spinning parameters on the structure and properties of air jet spun yarns." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/8481.
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Balakrishnan, Harinarayanan. "FDICS : a vision-based system for identification and classification of fabric defects." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/8465.
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Goll, J. June Wilson. "Contemporary navajo weaving : a native craft industry in transition /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487322984313733.
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Chan, Chi-tak, and 陳志德. "The exploration of fabric trading format in textile industry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31265947.
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Zou, Haichuan. "Investigation of hardware and software configuration on a wavelet-based vision system--a case study." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/8719.
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Tshifularo, Cyrus Alushavhiwi. "Comparative performance of natural and synthetic fibre nonwoven geotextiles." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/21362.
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The aim of this work was to establish a range of suitable process parameters which can be utilized to produce needlepunched nonwoven fabrics for geotextile applications. Nonwoven fabrics were produced from 100% PP, a blend of 50/50% PP/kenaf and 100% kenaf fibres. The depths of needle penetration of 4, 7 and 10 mm, stroke frequencies of 250, 350 and 450 strokes/min and mass per unit area of 300, 600 and 900 g/m2 were utilized for producing the fabrics, on a Dilo loom. The effect of depth of needle penetration, stroke frequency and mass per unit area on the fabric properties, namely, tensile strength, puncture resistance, pore size, water permeability and transmissivity were analysed. In addition, the effect of chemicals, namely, 10% ammonium hydroxide (NH4OH), 10% sodium chloride (NaCl) and 3% sulphuric acid (H2SO4) solutions on degradation of the fabric was also studied. The results have shown that density, thickness and nominal weight of the needlepunched nonwoven fabrics were related to each other and they were influenced by stroke frequency, depth of needle penetration and feed rate of the needlepunching process. The increase in nominal weight of the fabrics also increases thickness and density of the fabrics. The tensile strength and puncture resistance of the fabrics increased with the increases in stroke frequency, depth of needle penetration and fabric mass per unit area. However, lower tensile strength and puncture resistance were achieved in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area. Bigger pores were resulted in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area, however, pore size decreased with increases in stroke frequency, depth of needle penetration and mass per unit area. Water permeability depends on the pore size, properties of the fibres, stroke frequency, depth of needle penetration and mass per unit area. Higher tensile strength and higher puncture resistance were achieved in the needlepunched nonwoven fabrics produced from 100% PP fibres, therefore, they are suitable for some load-bearing geotextile applications, such as reinforcement and separation. However, higher water permeability was achieved in the fabrics produced from 100% kenaf fibres, therefore, they are ideal for geotextile applications where good water permeability is required. Higher values for transmissivity were obtained in the fabrics produced from a blend of 50/50% PP/kenaf fibres, therefore they are suitable for drainage applications. The fabrics produced from a blend of 50/50% PP/kenaf fibres achieved better values of tensile strength, puncture resistance, pore size and water permeability in comparison to that produced from 100% PP and 100% kenaf fibres. However, better tensile strength and puncture resistance were achieved in the fabrics produced from 100% PP fibres and bigger pore size and higher water permeability were achieved in the fabrics produced from 100% kenaf fibres. Therefore, it can be suggested that the nonwoven fabrics produced from a blend of 50/50% PP/kenaf fibres can fulfil almost all requirements of geotextile applications, such as, filtration, separation, reinforcement and drainage. The fabrics produced from 100% PP fibres were not damaged or deteriorated when treated with all the three chemicals due to chemical inertness of polypropylene. However, the fabrics produced from a blend of 50/50% PP/kenaf and 100% kenaf fibres were damaged and deteriorated when treated with H2SO4.
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Xue, Li. "Process Optimization of Dryers/Tenters in the Textile Industry." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5066.
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Textile dyeing and finishing industry uses dryers/tenters for drying and heat-setting fabrics. A very large fraction of the heating value of the fuel consumed in the burner ends up as waste in the dryer exhaust. An initial calculation showed that up to 90% of the energy consumed in the tenter is wasted. Therefore, quantifying the energy waste and determining drying characteristics are vitally important to optimizing the tenter and dryer operations. This research developed a portable off-line gas chromatography-based characterization system to assess the excess energy consumption. For low-demanding heat-setting situations, energy savings can be realized quickly.
On the other hand, there are demanding situations where fabric drying represents the production bottleneck. The drying rate may be governed either by the rate of heat transport or by the rate of moisture transport. A mathematical model is being developed that incorporates both these processes. The model parameters are being obtained from bench-scale dryer studies in the laboratories. The model will be validated using production scale data. This will enable one to predict optimization dryer operation strategies.
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Jennings, Sheila Ann. "A ravelled skein : the silk industry in south west Hertfordshire 1790-1890." Thesis, University of Hertfordshire, 2002. http://hdl.handle.net/2299/14044.
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Cotton and wool have long dominated studies of the English textile industries, relegating silk manufacture to no more than a minor role in the British economy. Regional studies have likewise tended to concentrate upon areas dominated by a single feature or single industry. This thesis aims to address the economic and social impact of a silk industry established in the predominantly rural area of South West Hertfordshire. Here the indigenous population had other opportunities for employment, agricultural labour of various kinds forming the greatest occupational group. The straw plait absorbed female and child labour in the districts of Berkhamsted and St Albans, in direct competition to the silk mills, while the rag factories supplying the paper industry offered competition to the silk mills of Watford and Rickmansworth. Any industry dependent upon imports is especially vulnerable to external pressure, and an overview of the national situation regarding the silk industry in England, and of the particular problems besetting manufacturers during the late eighteenth and nineteenth centuries, is therefore essential to an understanding of the situation in the rural semi-industrial districts. The chapters of this thesis therefore follow the story of silk production from the wider context of the national industry to the specific mills of Hertfordshire, asking first, why the establishment of an English silk industry was so important. Themes explored in later chapters are already discernible in the early history of the silk industry: the high involvement of women; the apprenticeshipo f children; the interventionist role of government; and the problem of the poor. The extent to which these factors impinged upon the relationship between master, worker, and the local district, and ultimately upon the viability of the Hertfordshire mills, form the central core of this study.
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Winck, Ryder Christian. "Fabric control for feeding into an automated sewing machine." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28205.
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Henry, Philippa Anne. "The changing scale and mode of textile production in late Saxon England : its relationship to developments in textile technology." Thesis, University of Oxford, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669895.
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Dransart, Penny. "Fibre to fabric : the role of fibre in Camelid economies in prehispanic and contemporary Chile." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670298.
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Shams, Glorianne Pionati. "Some minor textiles in antiquity." Göteborg : P. Åström, 1987. http://catalogue.bnf.fr/ark:/12148/cb38912890q.
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Rosa, Jorge Marcos 1961. "Efluentes no beneficiamento têxtil : reutilização do efluente têxtil tratado via fotocatálise homogênea UV/H202 no tingimento de tecidos 100 % algodão." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266607.
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Orientadores: Elias Basile Tambourgi, José Carlos Curvelo SantanaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
Made available in DSpace on 2018-08-23T20:43:11Z (GMT). No. of bitstreams: 1 Rosa_JorgeMarcos_D.pdf: 39736123 bytes, checksum: 4ec219a60a8a654fb8441a227f97b41f (MD5) Previous issue date: 2013
Resumo: O objetivo deste trabalho foi estudar a viabilidade da reutilização contínua de efluente têxteis tratados por Processo Oxidativo Avançado em tingimentos de algodão 100% com corantes reativos, visando reutilização de, no mínimo, 90% do efluente tratado em novos processos de beneficiamentos. Projetou-se um reator do tipo batelada com capacidade para 1 litro, contendo duas lâmpadas Phillips TL-C de 6W cada, de radiação UV-C em 237 nm, juntamente com sistema de circulação e resfriamento. Inicialmente, estudou-se dois processos de fotocatálise, homogênea e heterogênea, para escolha do processo ideal. Em seguida, com auxílio de planejamento fatorial, determinou-se um método para detecção de peróxido de hidrogênio visando a neutralização deste para execução de tingimentos com o efluente tratado. Na etapa seguinte os ensaios foram efetuados em efluentes reais produzidos em escala piloto. Nestes experimentos, analisou-se o rendimento tintóreo e, na comparação de tingimentos efetuados com água normal de reabastecimento versus efluente tratado, testou-se também os índices de solidezes das cores à água e ao suor, juntamente com a resistência dos tecidos, antes e após os tingimentos. Os resultados obtidos em dez tingimentos efetuados consecutivamente demonstraram índices de remoção de cor acima de 90% em todos os casos, com desvios totais (DE) não superiores a 1,10 entre os tingimentos, gerando uma economia de 50% de recursos hídricos dos tingimentos efetuados com efluente tratado em relação aos tingimentos efetuados com água normal de reabastecimento
Abstract: The objective of this work was to study the viability of continuous reuse of textile effluent treated by Advanced Oxidative Process for dyeings of 100% cotton knit with reactive dyes in order to reuse at least 90 % of the treated effluent in new dyeing processes. A batch type reactor with a capacity of one liter containing two lamps Phillips TL - C 6W each, UV-C 237 nm , along with circulation and cooling system was developed . Initially, were studied two processes of photocatalysis, homogeneous and heterogeneous, in order to choose the ideal process. Then, with the aid of a factorial planning, it was established a method for detecting hydrogen peroxide in order to aim the neutralization of it, to perform the dyeings with the treated effluent. In the next stage, the tests were performed in real effluents produced on a pilot scale. In these experiments, were analyzed the dyeing performance between dyeings made with normal water replenishment versus treated effluent. Was also tested color fastness to water and perspiration, together with the resistance of the fabrics before and after dyeing. The results of ten consecutive dyeings carried out showed color removal rates above 90 % in all cases, with a total deviation (?E) less than 1.10 among the dyes, resulting in a savings of 50% of water in the dyeings made with treated effluent compared to dyes made with normal water replenishment
Doutorado
Sistemas de Processos Quimicos e Informatica
Doutor em Engenharia Química
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Sinsheimer, Peter. "Fashioning a greener shade of clean integrating pollution prevention into public policy : the case of professional wet cleaning /." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1835200081&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
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Ouyang, Wenbin. "On-Loom Fabric Defect Inspection Using Contact Image Sensors and Activation Layer Embedded Convolutional Neural Network." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404537/.
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Malfunctions on loom machines are the main causes of faulty fabric production. An on-loom fabric inspection system is a real-time monitoring device that enables immediate defect detection for human intervention. This dissertation presented a solution for the on-loom fabric defect inspection, including the new hardware design—the configurable contact image sensor (CIS) module—for on-loom fabric scanning and the defect detection algorithms. The main contributions of this work include (1) creating a configurable CIS module adaptable to a loom width, which brings CIS unique features, such as sub-millimeter resolution, compact size, short working distance and low cost, to the fabric defect inspection system, (2) designing a two-level hardware architecture that can be efficiently deployed in a weaving factory with hundreds of looms, (3) developing a two-level inspecting scheme, with which the initial defect screening is performed on the Raspberry Pi and the intensive defect verification is processed on the cloud server, (4) introducing the novel pairwise-potential activation layer to a convolutional neural network that leads to high accuracies of defect segmentation on fabrics with fine and imbalanced structures, (5) achieving a real-time defect detection that allows a possible defect to be examined multiple times, and (6) implementing a new color segmentation technique suitable for processing multi-color fabric defects.
The novel CIS-based on-loom scanning system offered real-time and high-resolution fabric images, which was able to deliver the information of single thread on a fabric. The algorithm evaluation on the fabric defect datasets showed a non-miss-detection rate on defect-free fabrics. The average precision of defect existed images reached above 90% at the pixel level. The detected defect pixels' integrity—the recall scored around 70%. Possible defect regions overestimated on ground truth images and the morphologies of fine defects similar to regular fabric pattern were the two major reasons that caused the imperfection in defect pixel locating. The experiments showed the defect areas on multi-color fabrics could be precisely located under the proposed color segmentation algorithm.
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Lambrechts, Leon. "An evaluation of the impact of quotas imposed on clothing and textiles imported from China on the clothing and textile manufacturing industry in South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1023.
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Thesis (MBA (Business Management))--University of Stellenbosch, 2009.ENGLISH ABSTRACT: This report is an evaluation of the impact of the quotas imposed on clothing and textiles imported from China on the clothing and textile manufacturing industry in South Africa. On 28 August 2006 the Government of the Republic of South Africa and the Government of the People’s Republic of China concluded a memorandum in terms of which the export of certain tariff lines of the Chinese textile products to South Africa would be administered in accordance with the volumes specified in the memorandum for a period of two years. The fundamental objective of these import quotas was to provide South African clothing and textile firms the space in which to operate, with the aim of improving competitiveness in domestic and export markets in the long run. The Chinese market-share of South African global clothing imports has risen steadily to the mid-2006 level of just under 75 percent. It was claimed that because of the significant growth in imports from China between 63 000 to 67 000 jobs were lost in the domestic clothing and textile industry from March 2003 to September 2006. The effect of the imposition of the quotas is evaluated by comparing the state of the clothing and textile industry in South Africa prior to 2006, that is pre-quota imposition to the state of the industry up to two years after imposition of the quotas. Reference is made to employment in the clothing and textile industry in South Africa, the size of the industry in South Africa, the position of clothing retailers, labour costs and productivity, as well as the competitiveness of the local clothing and textile industry. The comparison shows that the import quotas did not solve the industry’s woes and that the trends prior to the imposition of the quotas continued. It further shows that the imposition of quotas had a detrimental effect on the welfare of consumers in the country. A change of tack for the industry’s policy makers and businesses is proposed.
AFRIKAANSE OPSOMMING: Die verslag is ‘n evaluering van die impak van kwotas ingestel op die invoer van klerasie en tekstiele vanuit China op die Suid Afrikaanse klerasie- en tekstiel-bedryf. Op 28 Augustus 2006 het die regerings van Suid-Afrika en China ‘n memorandum onderteken ingevolge waarvan die uitvoer van sekere Chinese tekstiel-tarieflyne na Suid-Afrika vir ‘n tydperk van twee jaar beperk sou word tot volumes gespesifiseer in die memorandum. Die doel van hierdie kwotas was om aan Suid Afrikaanse klerasie- en tekstiel-ondernemings die ruimte te skep om handel te dryf en sodoende hul mededingendheid in beide die plaaslike- en uitvoermarkte te verbeter. Die Chinese markaandeel van Suid-Afrikaanse klere-invoere het geleidelik gestyg tot net onder 75 persent in die middel van 2006. Arbeids-organisasies het aangevoer dat die aansienlike toename in invoere van China daartoe gelei het dat tussen 63 000 en 67 000 werksgeleenthede verlore gegaan het in die plaaslike klerasie- en tekstiel-bedryf vanaf Maart 2003 tot September 2006. Die effek van die kwota-instelling word geëvalueer deur die stand van die Suid-Afrikaanse klerasie- en tekstiel-bedryf voor 2006 - dit wil sê voor die instelling van die kwotas - te vergelyk met die stand van die bedryf vir ‘n tydperk van twee jaar ná die instelling van die kwotas. Verwysings word gemaak na die vlak van indiensneming in die Suid Afrikaanse klerasie- en tekstiel-bedryf, die grootte van die plaaslike bedryf, die posisie van klere-kleinhandelaars, arbeidskoste en produktiwiteit, asook die mededingendheid van die plaaslike bedryf. Die vergelyking toon dat die invoer-kwotas nie die bedryf verbeter het nie en dat tendense aanwesig voor die instelling van die kwotas steeds voortduur. Bowendien toon dit dat die instelling van die kwotas ‘n nadelige invloed gehad het op die welvaart van Suid-Afrikaanse verbuikers. ‘n Koersverandering vir die bedryf se beleidmakers en besighede word voorgestel.
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Aubé, Carole. "La naissance du Sentier : l'espace du commerce des tissus à Paris dans la première moitié du XIXe siècle." Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0168/document.
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Situé en plein cœur de Paris, le Sentier reconnu depuis la seconde moitié du XXe siècle comme le centre le plus actif du commerce international des tissus, s’est construit dans la continuité d’un ‘’Sentier ancien ‘’ qui trouve ses origines dans la première moitié du XIXe siècle. En nous appuyant sur les Almanachs du Commerce de Paris pour reconstruire l’infrastructure économique de cet espace, nous avons pu mettre en évidence les caractéristiques de cet ensemble originaire et plus particulièrement la croissante centralité du quartier Montmartre dans le commerce des tissus. Placé à la lisière des grands boulevards et des lieux de la « nouvelle modernité » parisienne, ce quartier était le véritable noyau central du commerce des tissus en gros, animé par un négoce important et solidement implanté dans les rues du Sentier, Saint-Fiacre et des Jeûneurs. Il s’agit prioritairement, au début du siècle, du commerce des articles de toiles de coton et des châles, rejoints à partir des années 1830, par la vente de dentelles, de tissus mérinos et de tissus de nouveautés.Dans notre recherche pour saisir l’ensemble des éléments à l’œuvre dans la construction identitaire de cet espace original, l’exploitation de diverses sources, telles que les sources cadastrales, la composition des listes électorales ou les archives notariales, nous ont permis de restituer une image précise de ces dynamiques, de dégager l’importance de cette sphère professionnelle et ses multiples conséquences sur l’espace physique et social de ce quartierLocated in the very heart of Paris, the SENTIER which prevails in the second half of the 19th century as the most active center of the business of international trade of fabrics, built itself in the continuity of a " former SENTIER " which has its origins in the first half of the 19th century. Relying on the Almanachs of the Trade of Paris to reconstruct the economic infrastructure of this space, we were able to highlight the characteristics of this first socio-economic group and the increasing centrality of the Montmartre neighborhood in the trade of fabrics. Located at the edge of the places of the "new Parisian modernity ", this district became the central point of the wholesale fabrics trade, led by an important trade firmly established in the streets of the Sentier, Saint Fiacre and Jeuneurs. It mainly concerns, at the beginning of the century, the trade of articles of cotton cloths and shawls, joined from 1830s, by the sale of laces, merino fabrics and fashionable fabrics. In our search to seize all the elements in action in the identity construction of this original space, the exploitation of diverse sources, such as the cadastral sources, the composition of electoral rolls or the notarial archives, allowed us to restore a precise image of these dynamics to express the importance of this professional sphere and its multiple consequences on the physical and social space of this district
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"How to improve the production lead time of knitted fabrics for company X." Chinese University of Hong Kong, 1991. http://library.cuhk.edu.hk/record=b5888627.
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by Yang Ming-Yen Teresa.Thesis (M.B.A.)--Chinese University of Hong Kong, 1991.
Includes bibliographical references (leave 61).
ABSTRACT --- p.ii
ACKNOWLEDGEMENTS --- p.iii
TABLE OF CONTENTS --- p.iv
LIST OF ILLUSTRATIONS --- p.vi
LIST OF TABLES --- p.vii
Chapter I. --- Introduction --- p.1
Company Background --- p.6
Chapter II. --- Methodology --- p.9
Chapter III. --- Analysis of the Existing System --- p.10
Piecegoods Purchase Order System --- p.10
Physical Flow --- p.17
Yarn Dyeing --- p.24
Knitting --- p.26
Piece Dyeing --- p.26
Finishing --- p.30
Final Inspection --- p.32
Transit Time --- p.35
Chapter IV. --- Identification of Major Problem Areas --- p.38
Documentation Flow --- p.38
Physical Flow --- p.40
Feasibility of the Target Lead Time --- p.41
Feasibility of the Target --- p.42
Production Capacity
Identification of the Problem Areas --- p.44
Chapter V. --- Recommendations To Improve the Lead Time --- p.50
Measurements --- p.50
Skills --- p.51
Communication --- p.54
Decision Process --- p.56
Management Support --- p.57
Appendix --- p.60
Bibliography --- p.61
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Kim, Su Yeon Fiorito Susan S. "Determinants of mass customization adoption relationship management in the apparel industry /." Diss., 2005. http://etd.lib.fsu.edu/theses/available/etd-11112005-090647.
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Thesis (M.S.)--Florida State University, 2005.Advisor: Susan S. Fiorito, Florida State University, College of Human Sciences, Dept. of Textiles and Consumer Sciences. Title and description from dissertation home page (viewed Jan. 27, 2006). Document formatted into pages; contains vii, 80 pages. Includes bibliographical references.