Patent · US Expired

Method of producing a paper having a three-dimensional pattern

US6454905B1 · kind B1 · utility

23Cited by

5References

18Claims

0Family size

Assignee

SCA HYGIENE PRODUCTS AB · SE

Inventors

Holger Hollmark · Stockholm, SE
Lennart Reiner · Matfors, SE
Thomas Billgren · Lindome, SE
Kaveh Tondkar · Umeå, SE
Bengt Järrehult · Umeå, SE
Mats Söderberg · Sundsvall, SE

Key dates

Filing date	Apr 2, 2001
Grant date	Sep 24, 2002
Priority date	—
Expiry date	Apr 2, 2021

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21F11/006
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Method of producing an impulse dried paper having a three-dimensional pattern of alternating raised and recessed portions, which have been provided in connection with impulse drying, at which the wet paper web (10) is passed through at least two press nips (12a,b), each comprising a rotatable heated roll (13a,b) which is heated and that the paper web during the passage through the press nips is given a three-dimensional pattern of alternating raised and recessed portions either by means of a patterned wire (11′), -band or belt and/or by a pattern on the heated roll (13a,b).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.