Method of print bonding non-woven webs
US4529465A · kind A · utility
5Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1983 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Feb 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention concerns a process for preparing non-woven webs having a very soft hand and a high tensile strength. The process involved includes print bonding a non-woven web with a formaldehyde-free binder having a glass transition temperature of about 5.degree. C. to about 33.degree. C., then drying, curing and then calendering the non-woven web. The resultant non-woven web has a cross dimensional water wet tensile strength of at least 150 g/in and has a softness value of at least as soft as thermally bonded polypropylene. The invention is also concerned with a product produced by the above process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.