Process for dyeing closely constructed non-tufted textile materi

Details Process for dyeing closely constructed non-tufted textile materi Process for dyeing closely constructed non-tufted textile materi

1978-06-15

1981-03-17

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Diffusion transfer dyeing process, transfer sheet and product

Dry heat treatment for penetration

8478, 8552, 8607, 8924, 8929, 8930, D06P 500, C09B 6700

Patent

active

042564590

ABSTRACT:
An improved process for dyeing closely constructed non-tufted textile materials is provided wherein an effective minor amount of a substantially oil and water repellent fluoropolymer is applied to the textile material. The substantially oil and water repellent fluoropolymer employed can be represented schematically as ##STR1## The textile material can be, if desired, scoured with an aqueous surfactant solution to remove any residual dirt, oil or processing aids present on the textile material and thereafter scoured with an aqueous acidic solution to provide the textile material with an acidic pH prior to application of the fluoropolymer. Further, the back portion of the textile material can be backcoated with an elastomer composition. Once the textile material has been treated using any of the above processing steps, in combination with the application of the fluoropolymer, the resulting polymer-modified textile material is thoroughly dried and cured prior to dyeing. The application of the fluoropolymer to the textile material and its effect on the subsequent dyeing of the polymer modified textile material can further be enhanced by the use of a minor effective amount of a fluorosurfactant in combination with the fluoropolymer. The dyed products resulting from the process of the invention generally have reduced frosting and improved pattern definition and color yield.

REFERENCES:
patent: 2642416 (1953-06-01), Ahlbrecht et al.
patent: 2803615 (1957-08-01), Ahlbrecht et al.
patent: 3378609 (1968-04-01), Fasick et al.
patent: 3493614 (1970-02-01), Pacini
patent: 3503915 (1970-03-01), Peterson
patent: 3992145 (1976-11-01), Coraor
patent: 4065259 (1977-12-01), Jackson
Mares and Oxenrider, Textile Research Journal, Aug. 1977, pp. 551-560.
Morean and Drake, American Dyestuff Reporter, 1969, 58, (No. 4), pp. 21-26.

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