Melt-blown fiber web with improved concentration force and elasticity and method and apparatus for manufacturing the same
US10837133B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 8, 2017 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/601
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a melt-blown fiber web with improved concentration force and elasticity, whereby a melt-blown fabric is cut and sealed at predetermined intervals using knives having arbitrary patterns so that concentration force and elasticity of the melt-blown fiber web can be improved without degrading the inherent function of the fiber web. Further disclosed are a method and apparatus for manufacturing the melt-blown fiber web. The melt-blown fiber web includes thermoplastic filaments, wherein cutting portions and sealing portions are arranged on top and bottom surfaces of the fiber web at predetermined intervals along a thickness of the fiber web so that a concentration force and elasticity of the fiber web are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.