发明名称 |
Metod att framställa ett papper uppvisande en tredimensionell struktur |
摘要 |
A process for producing paper having a three-dimensional structure of alternating raised and recessed portions including passing a wet paper web through a heated press nip so the paper web is simultaneously dried by means of impulse drying and given a three dimensional structure. The heated press nip includes a heated pressure roll with a three dimensional pattern of alternating raised and recessed portions in its surface and a compressible surface. The compressible surface can be a compressible press felt which supports the wet paper web prior to and through the heated press nip. The compressible press felt may be pressed against a resilient compressible surface in the heated press nip away from the heated cylinder. The wet paper web may be a papermaking pulp containing at least 10%, and preferably at least 30% or 50% by weight of a high-yield pulp such as TMP or CTMP. |
申请公布号 |
SE9704908(D0) |
申请公布日期 |
1997.12.30 |
申请号 |
SE19970004908 |
申请日期 |
1997.12.30 |
申请人 |
SCA HYGIENE PAPER AB |
发明人 |
LENNART *REINER;HOLGER *HOLLMARK;HANS-JUERGEN *LAMB;HANS *WALLENIUS |
分类号 |
D21F3/02;D21F11/00;D21H21/20;(IPC1-7):D21F/ |
主分类号 |
D21F3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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