Download e-book for iPad: Chemical Principles of Synthetic Fibre Dyeing by S.M. Burkinshaw

By S.M. Burkinshaw

ISBN-10: 9401042632

ISBN-13: 9789401042635

ISBN-10: 9401105936

ISBN-13: 9789401105934

Synthetic fibres are regular for lots of purposes, with their color being of significant advertisement significance. This generally referenced ebook offers a entire account of the actual chemistry of the dyeing of man-made fibres and microfibres.

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Extra resources for Chemical Principles of Synthetic Fibre Dyeing

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08 (Copyright if; 1976 John Wiley & Sons, Inc. Reprinted by pennission) POLYESTER 25 sidered [45] that transformation proceeds more rapidly under aqueous conditions than in dry dyestuff. Such transformations, which can give rise to dyeings of low rub fastness [151] as well as reduced colour yield and dyeing rates [153], can be influenced by the presence of either non-ionic [155] or anionic [151, 154, 157, 158] surfactants as well as carriers [45]. In an excellent review of this particular topic, Braun [52] discusses the difficulties involved in determining the dissolution and thus dyeing properties of enantiotropic modifications of a disperse dye.

Waters [8] showed that several carriers induced shrinkage in PET fibre but was unable to demonstrate a correlation between the extent of fibre swelling (as measured by fibre contraction) imparted by a carrier and the effectiveness of the carrier in enhancing the rate of disperse dye uptake. Although methyl salicylate and trichlorobenzene were found not to swell PET fibres, as determined using specific gravity measurements [196], both these compounds and also o-phenylphenol caused considerable shrinkage of PET yarn.

F: CD >. 7 Effect of temperature on the adsorption of l-amino-4-hydroxyanthraquinone on PET [80] (Reproduced with permission from the Royal Society of Chemistry) with increase in application temperature. Generally, for all dye-fibre systems, the standard affinity of a dye decreases with increasing temperature for two reasons. 7 kJ mol- 1 and several workers have also demonstrated the exothermic nature of the adsorption of disperse dyes on various hydrophobic [87, 90, 180] and hydrophilic fibres [83].

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Chemical Principles of Synthetic Fibre Dyeing by S.M. Burkinshaw

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