Method for producing slubby yarn
US4100726A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1977 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | May 26, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J1/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process is disclosed for preparing slubby strands in which a textile strand is passed either over a surface or through a slubbing tool. The surface, if employed, may include a plurality of fluid passages positioned therein. As the strand passes over the surface or through the slubbing tool, high pressure fluid is introduced onto the surface of and through the strand. The high pressure fluid passes through the strand. This passage of fluid through the strand causes the strand to twist and bulk along its length to form a slub which is rapidly removed from the working surface of the slubbing surface or tool as a consolidated slub positioned on the strand. When a surface is employed, the surface may be a moving surface and when the surface includes a plurality of fluid passages, the passages may be vented at a point below the surface. Various apparatus for carrying out the novel method are disclosed as is the novel strand produced thereby. The process is described with particular reference to producing strands of glass fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.