Method of treating cellulose di-acetate fibers

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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252 89, 4273899, 4273934, 428264, 428265, 428290, 428375, 428393, 428364, 428365, D02G 300, B05D 302

Patent

active

044330286

ABSTRACT:
A method of treating cellulose di-acetate fibers to reduce the shrinkage characteristics thereof. The fibers are first immersed in a treating solution comprising a nonionic fluorocarbon long chain polymer, an organic thermosetting resin, an acid liberating catalyst and a carrier selected from the group consisting of water, a water soluble organic solvent or a mixture of water and water soluble organic solvent. The fibers are then removed from the solution, dried at a temperature below 300.degree. F. to evaporate the water and/or solvent therefrom and cured at a temperatue above 300.degree. F. to effect polymerization of the resin and cross-linkage between the resin and the polymer. Fibers treated by the method exhibit significantly improved shrinkage characteristics without reductions in tear strength, tensile strength or abrasion resistance.

REFERENCES:
patent: 3087905 (1963-04-01), Fluck
patent: 3462296 (1969-08-01), Raynolds et al.

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