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One-bath union dyeing of wool/polytrimethylene terephthalate blends

journal contribution
posted on 2008-01-01, 00:00 authored by J Zheng, Xin Liu, Peter Brady
The one-bath dyeing of blends of polytrimethylene terephthalate (PTT) staple and wool has been investigated. The exhaustion of selected Terasil disperse dyes on PTT fibre and Lanasol reactive dyes on wool was measured as a function of temperature, together with the cross-staining of the Terasil dyes on the wool component and the Lanasol dyes on PTT component. Most Terasil disperse dyes achieved satisfactory dye uptake on PTT at 110 °C, whereas on conventional polyester (polyethylene terephthalate) temperatures of up to 130 °C are required. An optimised union-dyeing technique for wool/PTT blends was developed which minimised the staining of Terasil disperse dyes on wool and produced dyed goods with high levels of wet colour fastness. Carriers were not required to enhance the dyeability of PTT at low temperatures. The wool component appeared to be protected against damage at 110 °C by the reactive dyes. The results indicate the potential for blending PTT fibre and wool to produce fabrics that are easier to dye at lower temperatures than conventional wool/polyester blends.

History

Journal

Coloration technology

Volume

124

Issue

4

Pagination

204 - 210

Publisher

Wiley-Blackwell Publishing Ltd

Location

Oxford, England

ISSN

1472-3581

eISSN

1478-4408

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Wiley-Blackwell

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