Composite sheets for wiping cloths
US6080466A · kind A · utility
12Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/695
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention overcomes drawbacks of prior composite sheets consisting of a spun-bonded nonwoven fabric and pulp fibers and provides an inexpensive composite sheet with excellent draping qualities, a nearly fabric-like touch and good usability. According to the present invention, a composite sheet made by entangling a web of thermoplastic filaments with pulp fibers under water stream is creped to increase the elongation in machine direction as high as in cross direction enough to obtain a usability equal to those of fabric wipers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.