EP 0101203 A3 19850116 - PROCESS FOR DRYING AND CONSOLIDATING A PAPER MAKING WEB
Title (en)
PROCESS FOR DRYING AND CONSOLIDATING A PAPER MAKING WEB
Publication
Application
Priority
GB 8221235 A 19820722
Abstract (en)
[origin: EP0101203A2] A process for drying and consolidating a paper making web so as to enhance translucency in the resulting paper. It is known to provide integral patterning by means of a dandy roll or by press marking or by embossing, but none of these known methods achieve controlled enhancement of translucency or tensile strength of paper. The invention provides a process for producing paper having at least portions with enhanced translucency in which a paper making web formed at least in part of cellulosic fibres and having a water content of at least 20% is simultaneously supported and constrained against shrinkage without preventing the release of water or water vapour therefrom, maintained at a temperature sufficient to dry the web without causing thermal degradation as it dries, and subjected across at least portions thereof to a pressure sufficient to produce enhanced trenslucency and tensile strength in the corresponding portions of the dried paper. If the portions of enhanced translucency are interconnected to form a network this will confer enhanced tensile strength on the structure of the paper.
IPC 1-7
IPC 8 full level
D21H 27/02 (2006.01); D21F 3/02 (2006.01); D21F 11/00 (2006.01); D21H 21/26 (2006.01)
CPC (source: EP KR)
D21F 3/0281 (2013.01 - EP); D21F 5/00 (2013.01 - KR); D21F 11/006 (2013.01 - EP)
Citation (search report)
- GB 2006296 A 19790502 - KIMBERLY CLARK CO
- CH 321119 A 19570430 - BOWATERS DEV AND RESEARCH LIMI [GB]
- DE 3017446 A1 19801127 - ST ANNES BOARD MILL CO LTD
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0101203 A2 19840222; EP 0101203 A3 19850116; AU 1697283 A 19840126; BR 8303858 A 19840228; DK 331783 A 19840123; DK 331783 D0 19830719; ES 524248 A0 19840616; ES 8405865 A1 19840616; FI 832631 A0 19830719; FI 832631 A 19840123; GR 78884 B 19841002; JP S5930999 A 19840218; KR 840005508 A 19841114; NO 832645 L 19840123; PT 77050 A 19830801; PT 77050 B 19860124; ZA 835233 B 19840425
DOCDB simple family (application)
EP 83304195 A 19830719; AU 1697283 A 19830719; BR 8303858 A 19830719; DK 331783 A 19830719; ES 524248 A 19830719; FI 832631 A 19830719; GR 830171975 A 19830719; JP 13178783 A 19830719; KR 830003315 A 19830719; NO 832645 A 19830720; PT 7705083 A 19830719; ZA 835233 A 19830719