Composite filament, process for the production of the same, and heat fused article
US6420026B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 18, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Sep 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2924
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention is aimed to provide a core-sheath type composite filament, in which a functional component is hardly lost due to volatilization during the melt forming; bleeding of the internally added functional component is effectively inhibited; the internally added functional component does not adversely affect spinning properties, stretching properties, strength and dimensional stability; the use of the functional component can be greatly reduced, leading to a reduction of production cost; superior functionalities of deodorizing properties and antimicrobial properties can be exhibited to a maximum extent; even when contacting with water, the functionalities can be kept over a long time; and the composite filament is highly safe to a human body. The invention is also aimed to provide a process for the production of the core-sheath type composite filament as well as a heat fused article obtained from the composite filament. The core-sheath type composite filament of the invention is composed of a core component X and a sheath component Y, wherein the core component X is formed from a first polyolefin resin (H), and the sheath component Y is formed from a second polyolefin resin (L…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.