JournalTOCs

International Journal of Textile Science
Number of Followers: 15

This is an Open Access Journal

Open Access journal
ISSN (Print) 2325-0119 - ISSN (Online) 2325-0100
Published by SAP

[105 journals]

Optical Characteristic and Tensile Strength of Silk Textiles Dyed with
Natural Dyes Coated with PVA and PVAc Exposed to UV Light
- Abstract: Publication year: 2020Source: International Journal of Textile Science, Volume 9, Number 1Harby E. Ahmed, Mie Ishii, Noriko Hayakawa, Masahiko TsukadaPoly(vinyl alcohol) (PVA) and poly(vinyl acetate) (PVAc) polymers have been used in the conservation of textiles for over 50 years. This study examines the physical and mechanical behavior of PVA- and PVAc- (Jade 403N) coated silk fabrics dyed with five type of natural dyes Japanese madder (Rubia akane L.), shikon (Lithospermum erythrorhizon L.), kihada (Philodendron amurense Rupr.), enjyu (Sophora japonica L.), and kariysu (Miscanthus tinctorius L). An ozone-producing UV lamp (8W X 2.GL8ZH. Sankyo Denki Co.) with an emission at 254 nm was used as the light source. The distance between the lamp and the samples was 28 cm, the duration of the exposure was 102 h. The fabric surfaces were photographed using a digital microscope (VHX-6000 Series Keyence, Japan) (×200) and an SEM (Hitachi SU-1500) (x 140, x 100). The surface color of the samples was measured with a spectrophotometer (CM-700d and CM-600dJ, Konika Minolta, Japan). The color difference was calculated according to CIELAB∆1E*. The tensile strength and elongation of the samples were measured using a universal material tester (Shimadzu universal tester S-500, Japan). The polymers are affected earlier than the silk fabric with exposure to light. The PVAc (Jade 403N) film showed the largest and the PVA film showed the least color difference among all the samples after UV irradiation. The color change pf the dyes has an effect on the optical appearance and that the dyes may disguise the overall discoloration caused by the polymer. Application of PVA and PVAc showed a decrease in tensile strength, which further decreased with UV irradiation. The results of this study showed that contrary to the intention, coating silk fabrics dyed with natural dyes with PVA and PVAc polymers does not exhibit stabilization as a conservation treatment, and when exposed to excessive light, the physical and chemical properties decrease further compared with that of the untreated silk fabric and the color change is influenced by the type to dyes. The common polymer treatment actually degrades the mechanical properties of the fabric. Historic textiles treated with PVA and PVAc need to be monitored and displayed under low levels of light and short duration. Careful consideration is necessary when applying PVA and PVAc to historic textiles as conservation treatments.
Comparative Study on Crease Recovery Finishing of Silk Fabric with Citric
Acid and Dimethylol Dihydroxy Ethylene Urea (DMDHEU) as Finishing Agent
- Abstract: Publication year: 2020Source: International Journal of Textile Science, Volume 9, Number 1Shaima Islam, Joyjit Ghosh, Nahida AkterAbstract In this research work, an attempt was made to increase the crease resistant property of silk fabrics by using citric acid and dimethylol dihydroxy ethylene urea (DMDHEU) as crosslinking agents. Variables were curing time, curing temperature, concentration of catalysts and crosslinking agents. Sodium hypophosphite (NaPO2H2) and magnesium chloride (MgCl2) were used as catalyst for citric acid and DMDHEU respectively and silicone was used as softener. The properties of the treated fabrics like crease recovery angle (CRA), whiteness index, tensile strength, tear strength and stiffness were measured and compared with the untreated fabric. The results report that 150°C curing temperature and 2 minutes curing time is suitable for both citric acid and DMDHEU as with increasing curing temperature and time whiteness index reduces (around 23% in case of citric acid and 27.55% in case of DMDHEU). Samples treated with dimethylol dihydroxy ethylene urea (DMDHEU) shows better crease recovery angle (up to 189°) than citric acid (up to 161°). The finished fabrics treated with citric acid retained 81.51% to 99.81% breaking strength and there was an increase in its tear strength (up to 121%). On the other hand, the finished fabric treated with dimethylol dihydroxy ethylene urea (DMDHEU) retained 82.12% to 97.89% breaking strength and showed maximum tear strength retention (%) of 123%. The drape co-efficient of fabrics treated with both finishing agents were increased significantly.
Analysis of Production Loss and Way to Increase Productivity in a
Particular Knitting Floor
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 3Dip Das, Md. Shamsuzzaman Rasel, Malaz Rahman KhanThis research recommends a way to improve the productivity of a particular knitting floor. A knitting floor might be standstill due to various reasons that should resolve problems before and on the time of its arising immediately unless factory would get huge loss for that. In this research, production data of five days for 20 different types of the knit machine were recorded and compared with the target production. Most of the cases, the production efficiency were found around 10-30% lower than the targeted one since no mentioned steps have been implemented then. Surprisingly, when the mentioned steps have been implemented steps by steps, factory has started to receive around 80-90% efficiency on target production and a 10-30% extra production than the regular production. The best production rate has been observed when machine has faced less no. of program changed and better quality of yarn is supplied. Besides, knitting floor environment, relief from pressure and tension upon the machine operator also plays a very significant role here.
Sustainable Approach to Modify the CPD Process for Knit Garments and
Analysis the Effect of Curing Treatment on CPD
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 3Sabbir Ahmed Abir, Ripon Kumar Prasad, Ajmery SultanaThe purpose of the study is to reduce the energy load of Cold pigment dyeing (CPD) process by minimizing process steps. As a representative effort in this direction, the current paper describes the effect of curing treatment on Cold pigment dyed garments considering different properties. Pretreatment of samples were done in the same bath and same method followed for both samples. In case of dyeing, two different methods i.e. existing (Pad-dry-cure) and experimental (pad-dry) were used to develop the samples. Prepared samples were evaluated in terms of CMC∆E value, color fastness properties, drape co-efficient, GSM, fabric strength and surface morphology respectively. Results of the study authenticate better output than the existing process by considering process time and energy savings. Color fastness value of the experimental sample offers comparatively better values than the existing process while other results are within range. Experimental process can reduce up to 6% processing time along with 2.35 Kw power savings for each batch. The experimental (pad-dry) process of CPD will provide a strong economical benchmark for the garments dyeing industry to adopt this sustainable process.
Development of Washing Effects on Reactive Dyed Denim Fabrics: A Value
Added Approach of Denim Wash
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 2Maitry Bhattacharjee, Avik Kumar Dhar, Md. Minhazul Islam, Md. Abdur RashidDenim garments are most preferred of today’s youth for the amelioration of its aesthetic sensibilities after washing which can be delineated as a magnanimous approach of imparting worn-out look, embellishment of appearance and improvement in the comfort ability of the garments. This project aimed to represent the pragmatic scope of reactive dye as an alternative of profusely used vat dye and has been successfully introduced on woven denim to mitigate the drawbacks of water insolubility of dye, extra processing of dye reduction, physical attachment of dye-fiber and finally long dyeing time of indigo, vat or sulphur dye. Various washing effects like Bleach, Potassium Permanganate (PP), Enzyme and Enzyme-Stone washing techniques were developed assiduously to obtain the desired fashion effect in terms of color fading and high wear performance in terms of longevity/minimum breaking strength losses of denim. 100% cotton denim (woven) with twill weave 3/1 construction was used in this project. At the denouement of the project, physical and mechanical properties of treated and untreated cotton denim fabric was investigated in terms of breaking strength, elongation at break, weight loss%, shrinkage% and color fading. Reflectance, whiteness, K/S value and CMC value of the washed samples were also investigated to bolster the washing performance of reactive dyed denim.
A Review on Sources and Application of Natural Dyes in Textiles
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 2Arun Kanti GuhaTextile industries are very useful for human being but these are destroying eco system because of generation of huge wastewater containing toxic substances. Prime reason of toxicity is use of synthetic dyes. To save our environment there is no alternative of natural dye. There are many sources of natural dyes in the Universe. In this article possible sources of natural dyes are discussed (2008-2018). Prominent sources of natural dyes are onion, carrot, marigold, orange peel, rose etc. have been discussed gradually. Isolation techniques, dyeing methods and fastness properties have been discussed in this article.
Physical Change of Various Knitted Fabrics by Stentering & Compacting
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 2Asif ShahriarIn my thesis I wanted to show different type of physical property changes due to different Type of machine applied in different type of fabric structure. Here I have worked with knitted fabric and also used knit finishing machine. In my thesis I have given some technical data and some valuable information how we can follow the buyer instruction and maintain proper use of machine to constant physical property of the fabric. Knitted fabric is not dimensionally constant, so we have to maintain shrinkage as well as maintaining the dia and GSM. Here I have shown comparison between machine to machine and the variation between fabric to fabric.
Improving Productivity by Using Extra Mechanical Automation on Different
Sewing Machine
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 1Israt Zebin Ansari, Zulfa Ferdous, Israt Zerin, Syed Fuad Irfan, Sujan SharkarApparel sector is the most promising and rapid growing sector of Bangladesh. To sustain and survive in the global competition, machine automation is becoming the demand of time. Now-a-days apparel manufacturing industries are trying to improve their production efficiency to cope with the emerging challenges of this sector. The aim of this research is to improve productivity of sewing line by using extra mechanical automation on sewing machine in affordable cost. These reduce the cycle time, increase productivity in SMV wise 73.81 to 83.1 and manpower wise from 21.42 to 24.19. Which saves a remarkable cost and helps to beat the lead time successfully as well.
The Optimization of Knitted T-Shirt for Rapid Production Process
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 1Asif ShahriarThis study is based on calculation of standard minute value (SMV) of T-shirt by determining the manpower and machine allocation for particular target. It seems that there are some differences between target production and actual production. In some cases target production was higher than that actual production while in some cases the other way round .i.e. actual production was higher than target production. It may also happed due to wrong data that lead to calculation of target production. It was also observed that SMV of a T-shirt increased in terms of decorative garments and there is a decrease of productivity. On the other hand SMV was relatively for the less decorative garments so that their productivity increased.
Surface Modification of Cotton Fabric with Effect Pigment - A Review of
Improved Textile Optical Functionalization
- Abstract: Publication year: 2019Source: International Journal of Textile Science, Volume 8, Number 1Mohammad Mamunur Rashid, Boris Mahltig, Khairuzzaman MamunThe review will introduce the surface modification of cotton textile with effect pigments to improve the optical functionalization of textiles. In this review, short description of two major groups of effect pigments- metallic effect pigment and pearl luster pigment will be discussed focusing on their optical characteristics while coated on textile. Orientation of pigment particles on coated textile, pigment-fabric bonding mechanism on coated textile and finally SEM images will be analyzed to understand the surface of modified textile in micro-scale observation. Hence, the possibility of improving optical functionalization of textile by treating with effect pigment shall be discussed in this work.