US PATENT SUBCLASS 8 / 131
.~ Cellulose ester or ether fibers

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

130.1  DF  SWELLING OR PLASTICIZING OF ARTIFICIAL FIBERS {1}
131.~ Cellulose ester or ether fibers {1}
132  DF  .~.~> With stretching

DEFINITION

Classification: 8/131

(under subclass 130.1) Processes wherein the fibers or filaments are esters or ethers of cellulose. The treatment may be for the purpose of effecting or protecting the luster to produce a soft wooly feel, reduce the tendency to laddering, prevent faults, or for softening generally.

SEE OR SEARCH THIS CLASS, SUBCLASS:

130, for swelling in connection with saponifying.

443, for swelling in connection with weighting.