Process for disperse dyeing dry-spun atactic polyvinyl chloride-

Details Process for disperse dyeing dry-spun atactic polyvinyl chloride- Process for disperse dyeing dry-spun atactic polyvinyl chloride-

1986-03-25

1987-07-21

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Drawing or stretching of preform with dyeing, process or...

8494, 8508, 8538, 8928, D06B 304, D06P 116, D01F 610

Patent

active

046815953

ABSTRACT:
The present invention relates to a process for continuous dyeing of filaments based on atactic polyvinyl chloride in the course of production.
It comprises, in succession, the phases of drawing, impregnation of the filaments by padding while, at the time of the impregnation, the filaments have a density of between 1.3 and 1.4 g/cm.sup.3 (the filament roving having a water content of 10 to 30% by weight), of stabilization under tension in the presence of steam under pressure at a temperature between 100.degree. and 130.degree. C. for 2 to 20 seconds, and then oiling and shrinking in a known manner.
Dyeing carried out in this manner is quick and makes it possible to produce colors having good fastness.

REFERENCES:
patent: 3533729 (1970-10-01), Mazzolini et al.
patent: 4591361 (1986-05-01), Cazzaro et al.

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