Fibrous padding material and process for its manufacture
US4259400A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1979 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Feb 8, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/671
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
PCT No. PCT/FR78/00001 Sec. 371 Date Feb. 8, 1979 Sec. 102(e) Date Feb. 8, 1979 PCT Filed June 2, 1978 PCT Pub. No. WO 78/00012 PCT Pub. Date Dec. 21, 1978 A fibrous padding material simulating natural down for quilted articles. The material is in the form of an element of defined length and of low thickness relative to its width, which element comprises a central filiform core which is relatively dense and rigid compared with the whole of the material and to which are bonded fibers which are oriented substantially transversely relative to this core, the said fibers being entangled with one another so as to form a homogeneous thin web and being located on either side of the core, substantially in the same plane (FIG. 3). Process for the manufacture of the material, in which a fibrous web is formed in a known manner, a plurality of spaced-out heat-weldable thread is superposed onto at least one of the faces of the said web, the spaced-out threads are caused to bond to the fibrous web, the web is divided into strips on either side of each thread and, finally, said strips, thus formed, are cut into elements of defined length (FIG. 1). The division of the web into strips is preferably …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.