Process for dyeing polymeric fibers

Bleaching and dyeing; fluid treatment and chemical modification – Pattern effect dyeing – process – compositions – or products – Random pattern effect – e.g. – space dyeing – etc.

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Details

8464, 8470, 8527, 8528, 8574, 8611, 8928, 8929, D06P 379, D06P 116, D06P 500

Patent

active

053585372

ABSTRACT:
There is disclosed a process and a composition for dyeing polymeric fibers which have limited dye sites and/or difficult to penetrate chemical structures. Briefly stated, the process comprises the steps of contacting polymeric fibers with a dye composition comprising a disperse dye and a swelling agent. The fibers in contact with said dye composition are then preferably heated to a temperature and for a time sufficient to effect dispersion of a portion of said dye into said polymeric fibers. Subsequently, the fibers are treated to remove residual dye composition.

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The Chemistry of Synthetic Dyes vol. III edited by K. Venkatakman Academic Press N.Y. 1970* pp. 385-390 and 444-447.
Hackh's Chemical Dictionary, Fourth Edition, 1972*, p. 727: Xanthene.
E. R. Trotman's "Dyeing and Chemical Technology of Textile Fibres," (Wiley-Interscience) Sixth Edition, 1984*, pp. 485-488.

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