Process for producing curl shrunk silk yarn

Details Process for producing curl shrunk silk yarn Process for producing curl shrunk silk yarn

1977-09-02

1979-02-27

Gorenstein, Charles

Textiles: spinning, twisting, and twining

Strand structure

Multifilament yarns

8128R, 57247, 57250, 57292, 57351, D02G 100

Patent

active

041412079

ABSTRACT:
This invention relates to a process for producing a curl shrunk silk yarn. One of the features of the invention is to absorb collagen derived protein into raw silk material after sericin is removed therefrom. Thereafter, silk fibers are twisted in a S- or Z-direction and then saturated with moisture. Another feature of the invention is to maintain the moisture saturated silk fibers at prescribed temperature and under prescribed pressure for a given time. Thereafter, the fibers are untwisted in the reverse direction and given a curl shrinkage characteristic under the circumstance of saturated vapor.

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