Full Text
(26 K)

Naturally Colored Cottons – Shade Changes upon Wet Treatments

Gisela Buschle-Diller, Christina Knight, Abby Person and Sally V. Fox


Conventional caustic and enzymatic scouring, solvent extraction, mercerization and cellulase enzyme treatments were performed on Coyote, Buffalo (brown varieties) and Green naturally pigmented cotton yarns. The effect of these wet treatments on the color shade was evaluated using the CIEL*a*b* color system. It was found that caustic treatments had the highest impact on the hue of these fibers. Further, Coyote and Buffalo plain weave fabrics were treated with metal salt solutions. A dramatic color shift towards darker browns and gray-browns was observed with solutions containing Fe(II) ions while other cations proved to be less effective.

Reprinted from Proceedings of the 1998 Beltwide Cotton Conferences pp. 730 - 732
©National Cotton Council, Memphis TN

[Main TOC] | [TOC] | [TOC by Section] | [Search] | [Help]
Previous Page [Previous] [Next] Next Page
Document last modified Sunday, Dec 6 1998