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DYES FOR WOOL
DYES FOR CELLULOSIC FIBRES
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absorption acetic acid acid dyes acrylic fibres anthraquinone Assess azoic azoic dyes basic dyes bath blend boil C.I. Acid Blue C.I. Acid Red C.I. Basic C.I. Direct C.I. Disperse C.I. Reactive Red cellulose acetate cellulosic fibres chemical chromaticity CIELAB class of dye coefficient Colour Index colour matching concentration cotton coupling component diazo components diazotisation direct dyes disperse dyes dye classes dye-fibre dyebath dyed dyeing properties effect Enter the wetted fabric fastness properties fastness tests fastness to washing following experiment illustrates g pieces Glauber's salt grey scale indigo leuco levelling light fastness Liquor ratio 50:1 material Matexil metal-complex dyes metamerism method mixtures molecules mordant nylon pattern phthalocyanine polyester Procedure raise the temperature range rate of dyeing reactive dyes Results Rinse and dry sample shades shown in Table skeins soap sodium dithionite substrate sulphur dyes textile uptake values vat dyes wash fastness wavelength wet fastness wool yarn