EP 0608460 B1 19980909 - Water-decomposable non-woven fabric
Title (en)
Water-decomposable non-woven fabric
Title (de)
In Wasser abbaubares Vlies
Title (fr)
Non-tissé décomposable dans l'eau
Publication
Application
Priority
EP 93101388 A 19930129
Abstract (en)
[origin: EP0608460A1] A water-decomposable non-woven fabric comprises a water-dispersible fiber layer, each fiber of which is bound with one another using a water-soluble binder comprising an unsaturated carboxylic acid/unsaturated carboxylic acid ester copolymer in which 1 to 60 mole % of the repeating units derived from the unsaturated carboxylic acid is in the form of a salt and which is soluble in tap water but is insoluble in an aqueous solution containing not less than 0.5 % by weight of a neutral inorganic salt comprising a monovalent ion; the water-dispersible fiber layer being composed of a mixture of 40 to 90 % by weight of fibers having a crimp number of 19/inch or less, 10 to 60 % by weight of fibers having a crimp number of 20/inch to 25/inch, and not more than 10 % by weight of fibers having a crimp number of 26/inch or more; and a content of the binder in the non-woven fabric being 1 to 30 % by weight relative to the total weight of the non-woven fabric. The non-woven fabric has a good feeling (high softness and good touch) and sufficient mechanical strength, and can be easily broken and dispersed by throwing into a large amount of water.
IPC 1-7
IPC 8 full level
D04H 1/42 (2006.01); D04H 1/425 (2012.01); D04H 1/4258 (2012.01); D04H 1/49 (2012.01); D04H 1/50 (2012.01); D04H 1/64 (2006.01)
CPC (source: EP US)
D04H 1/425 (2013.01 - EP); D04H 1/4258 (2013.01 - EP); D04H 1/43835 (2020.05 - EP US); D04H 1/43918 (2020.05 - EP US); D04H 1/49 (2013.01 - EP); D04H 1/50 (2013.01 - EP); D04H 1/64 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0608460 A1 19940803; EP 0608460 B1 19980909; DE 69320936 D1 19981015; DE 69320936 T2 19990520
DOCDB simple family (application)
EP 93101388 A 19930129; DE 69320936 T 19930129