The quantitative assessment of the fastness to washing of a range of disperse dyes on Nylon 6 filament

✍ Scribed by Cook, Christopher C. ;Hajisharifi, Mohsen

• Publisher: Wiley (John Wiley & Sons)
• Year: 2007
• Tongue: English
• Weight: 279 KB
• Volume: 24
• Category: Article
• ISSN: 0375-9210
• DOI: 10.1002/jctb.2720240409

✦ Synopsis

Abstract

Established methods for the estimation of fastness to washing of dyes on textiles usually involve visual estimation of changes in colour of the treated fibre. Such a method is unsuitable for certain depths of shade, when the amount of dye lost during washing is low or when a continuous record of dye loss is required. A method for the quantitative, continuous assessment of removal of disperse dye from dyed nylon 6 filament is described and has been found suitable in the case of C.I. Disperse Reds 1, 7, 13, 19, 31 and C.I. Disperse Orange 3. Rate of loss of a given dye during a washing process depends on factors such as the temperature and degree of agitation of the wash liquors, and the amount of dye already present in the wash liquors. Loss of dye is not thought to involve dye decomposition.