EP 0303798 B1 19930512 - WEB, IN PARTICULAR A PAPER MACHINE FELT, DRYER TISSUE, FILTER TISSUE OR THE LIKE
Title (en)
WEB, IN PARTICULAR A PAPER MACHINE FELT, DRYER TISSUE, FILTER TISSUE OR THE LIKE
Publication
Application
Priority
DE 3724159 A 19870722
Abstract (en)
[origin: EP0303798A2] The material web has a support material with fibres attached thereto, all the fibres being resistant to an essentially neutral aqueous medium. The permeability of the web deteriorates in operation because of the formation of deposits and/or mechanical stresses. In order to be able to regenerate the original permeability by simple means, at least some of the fibres (1,4,8) consist at least partially of a material (3, 6, 10, 11, 12) which is soluble in a basic or acid, nucleophilic or electrophilic, reductive or oxidative medium to which the carrier material is resistant. <IMAGE>
IPC 1-7
IPC 8 full level
D01F 8/04 (2006.01); D06N 7/02 (2006.01); D06N 7/04 (2006.01); D21F 1/00 (2006.01); D21F 7/08 (2006.01)
CPC (source: EP)
D01F 8/04 (2013.01); D21F 1/0027 (2013.01); D21F 7/083 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0303798 A2 19890222; EP 0303798 A3 19900725; EP 0303798 B1 19930512; AT E89351 T1 19930515; DE 3724159 A1 19890202; DE 3880924 D1 19930617; ES 2045020 T3 19940116; FI 883414 A0 19880719; FI 883414 A 19890123; FI 92848 B 19940930; FI 92848 C 19950110
DOCDB simple family (application)
EP 88109911 A 19880622; AT 88109911 T 19880622; DE 3724159 A 19870722; DE 3880924 T 19880622; ES 88109911 T 19880622; FI 883414 A 19880719