EP 0638679 B1 19991027 - Water-absorbent nonwoven fabric and process for producing same
Title (en)
Water-absorbent nonwoven fabric and process for producing same
Title (de)
Wasserabsorbierender Vliesstoff und Verfahren zur Herstellung
Title (fr)
Non-tissé absorbant l'eau et procédé de production
Publication
Application
Priority
JP 21791293 A 19930811
Abstract (en)
[origin: EP0638679A1] A nonwoven fabric having an excellent water absorption, a satisfactory softness and hand feeling, and a superior processability and wet mechanical strength, comprises synthetic fibers and water-absorbent cellulosic fibers intertwined with each other, the water-absorbent cellulosic fibers comprising cross-linked carboxymethyl cellulose fibers having a carboxymethyl group-substitution degree of 0.35 to 1.6, and being produced by forming a precursory nonwoven web from the synthetic fibers and cellulose fibers intertwined with each other, and carboxy methylating and cross-linking separately or simultaneously the cellulose fibers in the precursory nonwoven fabric by using a carboxymethylating agent and a cross-linked agent, to convert the precursory nonwoven web to a water-absorbent nonwoven fabric.
IPC 1-7
IPC 8 full level
D04H 1/42 (2006.01); D04H 1/425 (2012.01); D04H 1/4374 (2012.01); D04H 1/46 (2006.01); D04H 1/498 (2012.01)
CPC (source: EP US)
D04H 1/425 (2013.01 - EP); D04H 1/43835 (2020.05 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0638679 A1 19950215; EP 0638679 B1 19991027; DE 69421348 D1 19991202; DE 69421348 T2 20000608; JP H0754255 A 19950228
DOCDB simple family (application)
EP 94305926 A 19940810; DE 69421348 T 19940810; JP 21791293 A 19930811