Process for producing bulky paper
US6514382B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jan 2, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing bulky paper comprising the steps of transferring a fiber web (2) having a water content of 50 to 85% by weight to a patterning zone having a perforated patterning net (31) revolving along a suction unit; patterning the fiber web (2) in conformity to the perforated patterning net (31) by sucking the fiber web (2) which is held on the perforated patterning net (31) while applying 5 kcal/kg or more of heat to the fiber web (2) in a heat application zone simultaneously with or before or after the sucking of the fiber web (2); and then drying the fiber web (2) in a drying zone to obtain patterned bulky paper (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.