Temperature-sensitive color-changeable composite fiber

Details Temperature-sensitive color-changeable composite fiber Temperature-sensitive color-changeable composite fiber

1990-07-23

1992-10-06

Ryan, Patrick J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

D02G 300

Patent

active

051530660

ABSTRACT:
A temperature-sensitive color-changeable composite fiber wherein (A) a thermally color-changeable polymer phase (phase A) composed essentially of a thermally color-changeable material and a thermoplastic polymer having a melting point or a softening point of 230.degree. C. or lower, the content of the thermally color-changeable material being 0.5 to 90% by weight and (B) a protective polymer (phase B) composed essentially of a fiber-forming thermoplastic polymer are brought into contact with each other, (i) the protective polymer phase (phase B) occupying at least 60% of the fiber surface area, and (ii) the protective polymer phase (phase B) occupying 20 to 95% by weight relative to the overall fiber. The composite fiber of this invention has reversibly thermally color-changeable performance of excellent temperature-sensitive color-changeability, color vividness, washing durability and light resistance.

REFERENCES:
patent: 3616183 (1971-10-01), Brayford et al.
patent: 3679541 (1972-07-01), Davis et al.
patent: 4420534 (1983-12-01), Matsui et al.
patent: 4681791 (1987-07-01), Shibahashi et al.
Patent Abstracts of Japan vol. 14, No. 318 (C-738)(4261), Jul. 9, 1990.
Patent Abstracts of Japan, vol. 11, No. 381 (C-464)(2828), Dec. 12, 1987.
Database WPIL, Accession No. 87-354874 (36) & JP-62-177254 (Aug. 4, 1987).
Database WPI, Accession No. 79-779538 (43) & JP-54-117548 (Sep. 12, 1979).

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