Natural fiber nonwoven scouring material and methods of making
US9663882B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 12, 2009 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/54
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An open, lofty nonwoven scouring material comprising natural fibers and a method of making the scouring material is disclosed. The scouring material comprises a three dimensional nonwoven web of entangled fibers comprising natural vegetable fibers and synthetic fibers. Natural vegetable fibers comprise 20 to 80% wt. of the fibers of the web. The synthetic fibers comprise at least first synthetic fibers having a first melting point and second synthetic fibers having a second melting point that is higher than the first melting point. The first synthetic fibers entirely melt and coalesce at mutual contact point of the natural fibers and second synthetic fibers to bond the fibers together and to create voids. The bonded web has a maximum density of 60 kg/m3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.