Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
177544 | Dyes and Pigments | 2008 | 6 Pages |
Abstract
The effectiveness of a PVA aftertreatment in improving the fastness of acid dyes to repeated washing at 40, 50 and 60 °C was enhanced by the sequential application of an organic titanate, MgSO4 and a protease enzyme. This was attributed to the formation of a large molecular size, low water-solubility complex situated at the surface of the dyed substrate which physically resists diffusion of dye from the dyed fabric during washing. Although aftertreatment with each of four PVA-based aftertreatments reduced the lightness and chroma of the red and, in particular, the yellow dyeings, it had little effect on the colour of black dyeings.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
S.M. Burkinshaw, N. Kumar,