Processing aid for use in worsted and woolen processes

Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Proteinaceous fibers

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Details

8128A, 8128R, 8139, 8140, 8DIG8, D06M 1320, D06M 1334, D06C 704

Patent

active

041283988

ABSTRACT:
A processing aid is used to improve worsted and woolen processes. In the worsted process, pretreatment of wool tops with the processing aid prior to dyeing preserves fiber strength and softness. In the woolen process, addition of the processing aid to the carbonizing bath permits reduction in sulfuric acid concentration, enhances destruction of vegetable matter, and produces whiter, cleaner fiber and preserves fiber strength. If desired, the processing aid may also be introduced in the final rinse after wool scouring in either worsted or woolen processes. The preferred processing agent is epoxidized chain extended polyamide.

REFERENCES:
patent: 3049445 (1962-08-01), Lundgren et al.
patent: 3128145 (1964-04-01), Redston
patent: 3647763 (1972-03-01), Stockmann
patent: 3793279 (1974-02-01), Lipowski
The Modern Textile Dictionary, G. E. Linton, pp. 137 & 1054.
Graft Photo Polymerization of Acrylic Monomers onto Wool Sensitized by Anthroquinones, Needles et al., Applied Polymer Symposium, No. 18, pp. 569-577, (1971).
Wool Fabric Stabilization by Interfacial Polymerization: Pt. I Polyamides Whitfield et al., Textile Research Journal, (Aug. 61), pp. 704-711.
Wool Stabilization With Polyurea Finishes, Whitfield, Applied Polymer Symposium, No. 18, pp. 559-560 (1971).
Recent Developments in the Carbonization of Loose Wool and Noil, Motlova, Applied Polymer Symposium, No. 18, pp. 1163-1164 (1971).
Production and Properties of Wool With Incorporated Polymers, W. S. Simpson, Applied Polymer Symposium, No. 18, 585, 586, 592.

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