Process for recovery and reuse of textile size

Details Process for recovery and reuse of textile size Process for recovery and reuse of textile size

1974-06-19

1976-06-01

Lieberman, Allan

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Degumming or desizing

8139, 210 51, 428262, B01D 2300, D06L 114, D06L 116

Patent

active

039604853

ABSTRACT:
Warp textile sizes comprising interpolymers of vinyl esters are recovered by extraction of the interpolymer from woven cloth with an aqueous solvent to form an aqueous solution of the interpolymer. The interpolymmer is precipitated from the aqueous solution by adjusting the alkali metal ion concentration of the solution within defined limits and adding acid to reduce the pH to the range of 1 to 3. The precipitated polymer is isolated from the supernatant solution and is reused by dissolving it in an aqueous base to yield a sizing solution.

REFERENCES:
patent: 3472825 (1969-10-01), Walter et al.
patent: 3723381 (1973-03-01), Corey et al.

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