Browsing by Author "Anwar, Almas"

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    Effect of yarn parameters on shade variation of dyed cotton woven fabric
    (UNIVERSITY OF MANAGEMENT AND TECHNOLOGY, 2015) Anwar, Almas
    This research work is mainly focused on the effect of different yarn sources and yarn parameters on the vat dyed cotton woven fabric. In this research, plain cotton woven fabric is produced from the weft yarns of different sources with both carded and combed yarns, yarn counts and twist multiplier (T.M). These fabric samples are dyed with vat dye and color values of different fabric samples are measured by using Datacolor SF 600 spectrophotometer. It was found that fabric made from the weft yarn of different sources showed different lightness (L*), chroma (C*) and color strength (K/S) values. The fabric made from the combed weft yarn showed greater lightness (L*) and color strength (K/S) values as compared to carded weft yarn fabric. The woven fabric made from the high twisted weft yarn shows greater lightness (L*) but lower color strength (K/S) values as compared to fabric made from low twisted weft yarn. The woven fabric manufactured from the finer weft yarn shows greater color strength (K/S) but lower lightness (L*) value as compared to the fabric from coarser weft yarn.