High speed yarn finish application
US6797065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/096
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods and devices are provided to actively apply finish to one or more yarns in motion at speeds greater than about 3000 m/min, to achieve a finish application of 0.2 wt. % or more, and with a coefficient of variation of finish concentration of 10% or less. The devices are compact, portable and readily installed at a variety of positions on a fiber processing line. The devices of the invention contain the finish so that contamination of the surrounding areas is prevented.The devices may be used to provide an overfinish to a moving yarn between heated godet rolls. The so-provided heating may be used to dry the yarn and to promote curing reactions in the finish and between the yarn and finish compounds.The invention also includes the finished yarn products so produced. A yarn with increased finish uniformity is provided with an overfinish actively applied and dried on the draw bench before the first winding operation. The yarn products of the invention may be used in textile and leisure fiber applications, and in industrial fiber applications, such as in tires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.