Thermo-fusible conjugate fibers and method for producing same, and nonwoven fabric using same
US11603606B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 25, 2017 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Dec 20, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/55
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Shown are thermo-fusible conjugate fibers having a high degree of crystallinity, while a degree of orientation is suppressed, and a bulky and soft nonwoven fabric using the same. The thermo-fusible conjugate fibers have, as a first component, a polyester-based resin, and as a second component, an olefin-based resin having a melting point lower than a melting point of the first component, in which the degree of orientation in the polyester-based resin is 6.0 or less, and the degree of crystallinity therein is 20% or more. The conjugate fibers are preferably sheath-core conjugate fibers in which the first component is a core component and the second component is a sheath component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.