Apparatus for crimping synthetic thermoplastic fibers

Details Apparatus for crimping synthetic thermoplastic fibers Apparatus for crimping synthetic thermoplastic fibers

1975-08-26

1977-08-09

Rimrodt, Louis K.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28265, D02C 112

Patent

active

040401553

ABSTRACT:
Synthetic thermoplastic fibers are crimped in the presence of steam in a crimping zone wherein there are present a defined first region of low but increasing steam pressure, a defined second region of substantially constant, relatively high steam pressure, and a defined third region of decreasing steam pressure. Superior crimped products are obtained having a more permanent bulkiness which resists deterioration during further processing and subsequent use.

REFERENCES:
patent: 2575781 (1951-11-01), Barach
patent: 2686339 (1954-08-01), Holt
patent: 2758357 (1956-08-01), Goodhue
patent: 2865080 (1958-12-01), Hentschel
patent: 3305897 (1967-02-01), Meibohm
patent: 3559254 (1971-02-01), Stanley
patent: 3628224 (1971-12-01), Murotani et al.
patent: 3777338 (1973-12-01), Vermeer et al.
patent: 3800374 (1974-04-01), Ozawa et al.
patent: 3802038 (1974-04-01), Bauch et al.
patent: 3802039 (1974-04-01), Bauch

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