Patent · US Expired

Method of producing a paper having a three-dimensional pattern and paper produced by the method

US6444089B1 · kind B1 · utility

13Cited by

7References

11Claims

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
Mats Söderberg · Sundsvall, SE
Bengt Järrehult · Umeå, SE

Key dates

Filing date	Apr 2, 2001
Grant date	Sep 3, 2002
Priority date	—
Expiry date	Apr 2, 2021

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H21/20
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying. The paper web has a varying material composition as seen in its thickness direction, so that it at least in an outer layer contains an amount of a material that softens, melts or hardens in the temperature interval 100-400° C. or in some other way contributes in stabilizing the pattern structure that has been given the paper. It is further referred to an impulse dried paper produced according to the method.

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