EP 0608460 A1 19940803 - Water-decomposable non-woven fabric.
Title (en)
Water-decomposable non-woven fabric.
Title (de)
Wasserlösliche Fliesstoff.
Title (fr)
Non-tissé décomposable dans l'eau.
Publication
Application
Priority
EP 93101388 A 19930129
Abstract (en)
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 (2012.01); D04H 1/425 (2012.01); D04H 1/4258 (2012.01); D04H 1/49 (2012.01); D04H 1/50 (2012.01); D04H 1/64 (2012.01)
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)
Citation (search report)
- [Y] WO 9215742 A2 19920917 - FULLER H B LICENSING FINANC [US]
- [A] EP 0326298 A2 19890802 - UNION OIL CO [US]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 143 (C-0703)19 March 1990 & JP-A-2 014 058 ( HIROYUKI KANAI ) 18 January 1990
- [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 100 (C-0693)23 February 1990 & JP-A-1 306 661 ( LION CORP ) 11 December 1989
- [A] DATABASE WPI Section Ch, Week 3691, Derwent Publications Ltd., London, GB; Class A96, AN 91-264063 & JP-A-3 174 417 (LION CORP) 29 July 1991
- [A] DATABASE WPI Section Ch, Week 4991, Derwent Publications Ltd., London, GB; Class A14, AN 91-357893 & JP-A-3 239 709 (LION CORP) 25 October 1991
- [A] DATABASE WPI Section Ch, Week 2988, Derwent Publications Ltd., London, GB; Class A14, AN 88-202052 & JP-A-63 139 906 (LION CORP) 11 June 1988
- [A] DATABASE WPI Section Ch, Week 3183, Derwent Publications Ltd., London, GB; Class A82, AN 83-725249 & JP-A-58 104 902 (YUKA BADISCHE KK) 22 June 1983
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