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Dye-resist effects on silk fabric treated with sulphamic acid and sandospace R

Authors
Journal
Dyes and Pigments
0143-7208
Publisher
Elsevier
Publication Date
Volume
18
Issue
4
Identifiers
DOI: 10.1016/0143-7208(92)80019-j

Abstract

Abstract The reactive molecules sulphamic acid and Sandospace R were applied to silk fabric, and their respective capacity to resist the fixation of acid, metal complex and reactive dyes were compared. Weight gains of 2–8% for sulphamic-acid-treated silk were easily obtained by a pad-dry-cure process and the treated silk exhibited excellent resist effects towards all three dye classes. High weight gains were more difficult to obtain during exhaustion of Sandospace R onto silk fabric and, consequently, dye-resist effects achieved with this reactive agent were inferior to those of sulphamic acid for practical treatment levels. The strength retention, yellowness index and subjective handle of the treated fabrics were also assessed.

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