Method and a system for manufacturing broad airlaid paper webs containing an absorbing powder
US5885516A · kind A · utility
19Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | May 27, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15658
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus of forming an air laid paper web. Superabsorbing powder is introduced at an intermediate stage between the initial supply of the fibers to the air laying unit and the final formation of the web. A first coarse distribution of the powder is effected in a compulsory manner, independently of the initial supply of fiber material while the final distribution of powder is effected by means of the same air flows which cause the final distribution of the fiber material for forming the even web layer. In this manner the powder is effectively mixed evenly into the fiber material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.