Morphologically stable bulked continuous filaments and methods and systems for making the same
US6635345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Apr 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Morphologically stable BCF yarns, and the methods and systems for making such BCF yarns are provided. More specifically, the BCF yarn is melt-spun, drawn and textured. The yarn texturizing includes a relatively low efficiency fluid jet texturizer, that is a fluid jet texturizer operating at a sufficiently low fluid jet velocity and a sufficiently high fluid jet temperature to obtain a yarn skein shrinkage of less than about 0.50 inch, more preferably about 0.25 inch or less. Most preferably, the BCF yarns are formed of nylon-6 and exhibit an alpha-crystalline content of less than about 45%, and usually between about 45% to about 55%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.