公开(公告)号：SK13392002A3

公开(公告)日：2003-02-04

申请号：SK13392002

申请日：2001-03-26

Applicant: SCA HYGIENE PROD AB

Inventor： WAHLSTROM JOHAN ,  BJORNSTROM LENA ,  ALM LEIF ,  KROOK FREDRIK ,  JOHANSSON SVEN-ERIK

IPC: A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  A61F13/511 ,  B32B5/26 ,  B32B7/04 ,  D04H3/04 ,  D04H3/14 ,  D04H13/00 ,  A61F13/538

Abstract: Fibrous material layer intended to be incorporated in an absorbent article. The layer ( 5 ) comprises at least two webs of tow fibers arranged on top of each other, which are bonded to each other into a laminate by means of a bonding pattern, and where one is corrugated and the other web is substantially smooth, wherein the corrugated web exhibits a more open structure in comparison to the smooth web. A method of manufacturing the layer ( 5 ) in question, in which method at least two separate webs ( 15 a, b) of opened and into a layer spread-out tow are fed into a bonding station ( 20 ), which webs exhibit different web tensions and/or web speeds, and that the webs ( 15 a, b) with maintained relative difference in web tension and/or web speed are bonded together in said bonding pattern ( 10 ) into a laminate.

公开(公告)号：CA2326511A1

公开(公告)日：1999-10-07

申请号：CA2326511

申请日：1999-03-17

Applicant: SCA HYGIENE PROD AB

Inventor： HEDENBERG PETER ,  HANSSON ROY ,  TENNBY ANDERS ,  KROOK FREDRIK ,  ELFSTROM ANNA-CARIN ,  GUSTAFSSON ANDERS

IPC: A61F13/511 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  B32B5/24 ,  A61F13/50

Abstract: The invention relates to a material laminate (1) with a planar dimension and a thickness direction perpendicular to the planar dimension, including a first liquid-permeable fibrous material layer (2) and a second liquid-permeable, porous and resilient material layer (3), with at least one of the material layers (2, 3) including thermoplastic material and the two material layers ( 2, 3) being mutually connected by the material laminate (1) exhibiting bonding sites (4) within which the thermoplastic material has been caused to at leas t partially soften or melt and thereby bond together the two material layers ( 2, 3). The bonding areas are arranged in two or more groups (5) with at least t wo bonding sites (4) in each group (5), with the greatest relative distance between two bonding sites (4), which are situated adjacent to each other, in a particular group (5) being less than the shortest distance between the group (5) and its closest adjacent group (5), as a result of which the material laminate (1) exhibits bond-free areas (6) between the bonding sites (4) with in each bonding group (5) which have a higher density than bond-free areas (9) of the material laminate which are situated between the bonding groups (5).