EP 0742305 A1 19961113 - Permeable fabrics
Title (en)
Permeable fabrics
Title (de)
Durchlässige Stoffe
Title (fr)
Etoffes perméables
Publication
Application
Priority
GB 9508982 A 19950503
Abstract (en)
The invention relates to a laminated fabric which is permeable to gas and/or vapour but possesses water droplet and solid particle barrier properties. The fabric comprises at least two layers of non-woven material, one layer (1; 4; 7) being a compressed fibrous melt-blown material and the other(s) provided by a support layer having an open porous structure. In the examples, the support layers (2; 3,5; 6,8) have a spun-bonded structure. The melt-blown layer (1; 4; 7) of the fabric may be compressed prior to lamination from an average pore size diameter greater than 8 mu m to a diameter approaching or entering a range of pore diameter sizes from 8 mu m down to about 1 mu m preferably between 3-7 mu m and most preferably about 4 mu m. After a point-bonding or calendering technique, the pore diameter of the melt-blown layer (1; 4; 7) will be within the range 1-8 mu m, preferably 2-7 mu m and most preferably between 2-4 mu m. Advantageously, both the melt-blown layers and the spun-bonded layers may comprise polymers of polypropylene and/or polyethylene. The finished fabric may advantageously be useful in a wide range of applications from bedding materials and sportswear to tarpaulins, camping equipment such as tents, and roofing underlays. <IMAGE>
IPC 1-7
IPC 8 full level
D04H 13/00 (2006.01); E04D 12/00 (2006.01)
CPC (source: EP)
D04H 13/00 (2013.01); E04D 12/002 (2013.01)
Citation (search report)
- [X] EP 0462574 A1 19911227 - KIMBERLY CLARK CO [US]
- [A] US 4766029 A 19880823 - BROCK ROBERT J [US], et al
- [A] WO 9509261 A1 19950406 - KIMBERLY CLARK CO [US]
- [PA] CA 2138195 A1 19951209 - KIMBERLY CLARK CO [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0742305 A1 19961113; EP 0742305 B1 20001220; EP 0742305 B2 20040804; DE 69611264 D1 20010125; DE 69611264 T2 20010705; DE 69611264 T3 20050310; GB 9508982 D0 19950621
DOCDB simple family (application)
EP 96303164 A 19960503; DE 69611264 T 19960503; GB 9508982 A 19950503