Hot-melt adhesive polyester conjugate fiber
US8147956B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 20, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To obtain an ultrafine heat-shrinkable conjugate fiber at high productivity, in which a flow-drawing state of a polyester undrawn yarn is realized easily and stably.By drawing undrawn yarn comprising a conjugated polyester polymer and olefin polymer, a flow-drawing process can be easily and stably realized using conventional production facilities; and the heat-shrinkable fiber, a drawn intermediate, and an ultrafine hot-melt adhesive conjugate fiber produced by redrawing the drawn intermediate of the present invention can be obtained with high productivity and excellent runnability. More specifically, the ultrafine hot-melt adhesive conjugate fiber obtained by redrawing can be drawn at a heretofore unseen high drawing magnification, and the fiber structure of the olefin polymer constituting part of the conjugate fiber is markedly developed. The heat-shrinkable fiber and ultrafine hot-melt adhesive conjugate fiber thus obtained can be suitably used in hygiene products and industrial materials by utilizing these features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.