Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1975-12-04
1978-06-27
Kight, III, John
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 14, 8 63, 8 66, 8154, 81551, 81552, D06P 522, D06B 1100
Patent
active
040972321
ABSTRACT:
A method for treating yarn in package form with a yarn treating agent to modify the physical and/or chemical characteristics of the yarn comprising the steps of introducing the agent at selected portions of the outer surface of the package, and then infusing the agent into the package with a heated fluid applied under pressure. More particularly, the method of the present invention contemplates the treatment of yarn in package form with one or more dyes or dye acceptance modifiers to modify or dye the yarn fibers in a reproducible manner to provide repeating contiguous sections of yarn having the desired characteristics. In one preferred embodiment of the invention, a dye acceptance modifier in the form of a resist is infused into one or both of the ends of a yarn package and a heated fluid is then introduced under pressure at a temperature and for a time sufficient to cause the resist to partially penetrate the package and contact individual strands of yarn or fibers, and to set the resist, if necessary.
In another preferred embodiment of the invention, a plurality of dyestuffs are introduced at the ends of the package, and a heated fluid, such as steam, is then introduced for a time sufficient to cause the dyes to at least partially penetrate the package.
In addition, the present invention contemplates an apparatus in which the aforementioned method may be practiced to treat yarn in package form either with dyes, dye acceptance modifiers, or other treating agents, to achieve desired characteristics. In its preferred form, the apparatus comprises a foraminous member which permits treatment of the package at selected portions of the outer surface thereof.
REFERENCES:
patent: 1607928 (1926-11-01), Vanness
patent: 3120422 (1964-02-01), Weir
patent: 3787176 (1974-01-01), Vonder Eltz et al.
patent: 3878575 (1975-04-01), Wedler
Brown Jerald
Negola Edward J.
Glen Head Inc.
Kight III John
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