Method for producing polymeric fibers with improved anti-static properties and fibers and fabrics produced thereby
US5364582A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Aug 30, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F1/09
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a method for producing polymeric fibers with improved anti-static properties and deep dyeability. The method employs anti-static agents that are solid, waxy substances at room temperature. The anti-static agent is pulverized and combined with a carrier to form a dispersion and injected into the throat of a spinning extruder. Polymeric material is added to the extruder and heated with the anti-static agent to form a melt. The melt is then extruded to form the polymeric fiber. Alternatively, the molten anti-static agent is melted and fed through heated lines into a spinning extruder. Polymeric material is added to the extruder and heated with the anti-static agent to form a melt. The melt is then extruded to form the polymeric fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.