Method of producing nonwoven fabrics
US4805275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1983 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Oct 3, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/495
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods are disclosed for treating fibrous webs with water jet streams. A water impermeable member is employed as a member for supporting the fibrous web in the water jet steam treatment. The jet treatment is carried out on a plurality of water impermeable rolls multistagedly and parallely arranged in order to provide effective draining treatment and effective entangling treatment of fibers after having been carried out on a water impermeable belt in order to transfer toward said rolls. The nonwoven fabrics obtained through the method do not substantially comprise openings and the fibers are intricately and firmly entangled in three dimensional direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.