Process for making nonwoven fabric
US4069563A · kind A · utility
27Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Apr 2, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/492
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The tensile strength of nonwoven fabric made by traversing a fibrous web on an apertured support with fine columnar streams of liquid is increased when the fine columnar streams are divided up into an array of a plurality of rows of streams, instead of a single row, with the streams in each row being staggered from one another and the rows being spaced 10 to 80 mils apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.