Title:
【発明の名称】吸収材料とその製造方法
Document Type and Number:
Japanese Patent JPH07506046
Kind Code:
A
Abstract:
An absorbent material suitable for use as a medical or hygienic absorbent and comprises a non-woven fibre sheet having dense surface layers (10) and between these layers a less dense region where most of the fibres extend in the plane of the sheet. Transversely extending fibres (16) help to bind the material, the fibres also being bonded to some extent by a hot melt bonding material, e.g. core/sheath-type bi-component fibres. The material is made by forming a blend of fibres, including a minor weight of hot melt fibres, by cross-lapping a plurality of layers (14) to form a web, subjecting the web to needling at low punch density with penetration through the web, thereafter subjecting surface regions (10) of the web to higher punch density needling to form the dense surface layer (10) at each face from the web. The web is then heated, e.g. by high temperature air, to soften the hot melt material and to cause it to bond adjacent fibres while retaining its fibrous form and without significant shrinkage of the web as a whole.
Inventors:
Blushington Nigel John
Welburn jean
Welburn jean
Application Number:
JP51907893A
Publication Date:
July 06, 1995
Filing Date:
April 29, 1993
Export Citation:
Assignee:
British United Shoe Machinery Limited
International Classes:
A61F13/53; A61F13/00; A61F13/15; A61F13/49; B01J20/28; D04H1/435; D04H1/48; D04H1/485; D04H1/54; D04H1/541; D04H1/544; D04H1/55; D04H13/00; (IPC1-7): B01J20/28; A61F13/00; A61F13/15; A61F13/48; D04H1/48
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)