Temperature-sensitive color-changeable composite fiber
US5153066A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 23, 1990 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Jul 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.