Textiles: spinning – twisting – and twining – Strand structure – Staple fiber blends
Reexamination Certificate
2011-04-19
2011-04-19
Hurley, Shaun R (Department: 3765)
Textiles: spinning, twisting, and twining
Strand structure
Staple fiber blends
C057S256000
Reexamination Certificate
active
07926253
ABSTRACT:
A method of making a textile product includes the steps of: first-steaming a first fiber bundle; twisting the first fiber bundle; second-steaming the first fiber bundle; drawing the first fiber bundle; third-steaming the first fiber bundle; untwisting the first fiber bundle; producing long hollow polypropylene filaments; drawing the polypropylene filaments; heating the polypropylene filaments; crimping the polypropylene filaments, followed by heating and shape-setting the same in an oven; cutting the polypropylene filaments into staple fibers, followed by forming the staple fibers into a second fiber bundle; mixing the first and second fiber bundles to obtain a fiber blend; and spinning the fiber blend.
REFERENCES:
patent: 3871165 (1975-03-01), Ishizawa et al.
patent: 3964279 (1976-06-01), Nagata et al.
patent: 6330786 (2001-12-01), Settle
patent: 6716256 (2004-04-01), Umehara et al.
Kathryn L Hatch, Textile Science, 1993, West Publishing Company, 1stedition, p. 144.
Canbelin Industrial Co., Ltd.
Hurley Shaun R
Ladas & Parry LLP
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