Method for manufacturing crimped textile elements by fibrillation of films
US4102969A · kind A · utility
10Cited by
14References
5Claims
0Family size
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Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/47
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing crimped textile elements by extruding a bilaminate film each face of which comprises a different thermoplastic macromolecular polymer and one face of which comprises a mixture of such a polymer with a vinyl copolymer, orienting the bilaminate film by stretching, and then fibrillating the oriented film. The fibrillated film may be chopped into discontinuous fibers. The crimped products include fibrillated webs or sheets, continuous filaments and short fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.