Continuous bi-compound acrylic bulky yarn and the method of the production of same
US3937000A · kind A · utility
0Cited by
7References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 15, 1972 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Sep 15, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S57/905
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A continuous bi-compound bulky yarn consisting of a pair of acrylic polymeric components differing from each other in some of their properties is prepared by spinning those components in solution to produce a spun yarn which is drawn and then, successively, passed through a first oven heated to a temperature in the range of 130.degree.-250.degree.C, subjected to a false twist by means of a rotating spindle, passed through a second oven heated to a temperature in the range of 120.degree.-240.degree.C, and wound on a holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.