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Naik S.R.,Man Made Textiles Research Association MANTRA
International Dyer | Year: 2011

The present paper presents work done on fish aquatic toxicity of certain chemicals which are commonly used in processing of synthetic textiles. The fish Labeorohita was selected for test as it is commercially important and known for its delicacy. Fishes were collected from well maintained fish farms, acclimatised in laboratory and exposed to various textile auxiliaries and chemicals at different concentration levels for 96 hours, and the effect of exposute on the behaviour of fish was studied. The study shows that certain chemicals/auxiliaries commonly used in processing of synthetic textiles are toxic to fish. Source


Naik S.R.,Man Made Textiles Research Association MANTRA | Pancholi B.S.,Man Made Textiles Research Association MANTRA
International Dyer | Year: 2011

Fabrics woven from viscose fibres have always been a fashion designer's delight due to their excellent drape, lustre, softness, absorbency and colour brilliance. But the technology for chemical processing of Viscose filament Yam (VFY) based fabrics is still not well established. Uneven dye pick-up, crease marks, uneven shrinkage, pilling etc, can ultimately result in non-uniform/uneven processing. Hence, it is necessary to devise an appropriate pretreatment sequence and dyeing and finishing technology within existing infrastructure. If processing techniques are judiciously selected and applied for VFY fabrics, many new high-end products can be presented to domestic (Indian) consumers. To this end, appropriate process know-how is a 'must' at shop-floor level. The aim of the present investigations is to find out whether it is possible to control and decrease the residual shrinkage of viscose fabrics by proper selection of technology/machinery and by using a cross-linking agent of the dimethyloldihydroxy ethylene urea type in the presence of different catalysts, and to follow the cross-linking effect on some of these materials' properties. Source


Joshi H.D.,Man Made Textiles Research Association MANTRA | Joshi D.H.,Man Made Textiles Research Association MANTRA | Patel M.G.,Man Made Textiles Research Association MANTRA
Coloration Technology | Year: 2010

Lyocell union fabrics, namely lyocell/silk and lyocell/polyester fabrics, were woven in different fabric constructions and dyed with reactive dyes, acid dyes and a disperse dye. The resulting dyed fabrics were given a resin finishing treatment and their wash fastness was measured. With appropriate dye selection and control of dyeing conditions, some bright solid shades and effective cross-dyed shades were obtained. The dyed and finished fabrics had a smooth, lustrous handle, ideal for lightweight garments. © 2010 Mantra. Journal compilation © 2010 Society of Dyers and Colourists. Source


Joshi H.D.,Man Made Textiles Research Association MANTRA | Joshi D.H.,Man Made Textiles Research Association MANTRA | Patel M.G.,Man Made Textiles Research Association MANTRA
International Dyer | Year: 2013

Three thermochromic and three photochromic colorants were applied to different substrates, viz. polyester, cotton, nylon, polypropylene, polyesterviscose blend and polyester-cotton blend fabrics. The thermochromic and photochromic colorants were applied by the specified techniques. The different substrates were selected for different end uses. The colorant-treated substrates were viewed in fluorescent light and under sunlight at room temperature and at 20°C. The washing fastness of all the treated substrates was determined. Source

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