公开(公告)号：US11000429B2

公开(公告)日：2021-05-11

申请号：US16300114

申请日：2016-06-01

申请人： UNICHARM CORPORATION

发明人： Masashi Uda ,  Shinichi Ishikawa ,  Ryota Kawamori ,  Takashi Maruyama

IPC分类号： A61F13/15 ,  A61F13/511 ,  A61F13/512 ,  A61F13/494

摘要： A nonwoven fabric for an absorbent article has a plurality of first ridges and a plurality of first grooves on a first surface, each of the first ridges extending in a first direction and being provided with a first top surface including a first top section and first side surfaces, and each of the first grooves extending in the first direction; each of the first grooves of the nonwoven fabric has a plurality of second ridges and a plurality of bottom sections on the first surface, each of the second grooves being contiguous with two adjacent first ridges among the plurality of first ridges and having a second top section; the nonwoven fabric is provided with a plurality of predetermined recess units; and in each of the plurality of recess units, the fiber density of the first surface is lower than the fiber density of the first top surface.

公开(公告)号：US09675502B2

公开(公告)日：2017-06-13

申请号：US14761764

申请日：2014-01-17

申请人： UNICHARM CORPORATION

发明人： Hiroki Goda ,  Shinichi Ishikawa ,  Ryota Kawamori ,  Kengo Ochi

IPC分类号： A61F13/533 ,  A61F13/536 ,  A61F13/539 ,  A61F13/15 ,  A61F13/537 ,  A61F13/53 ,  A61F13/534

CPC分类号： A61F13/536 ,  A61F13/1565 ,  A61F13/15699 ,  A61F13/533 ,  A61F13/53704 ,  A61F13/539 ,  A61F2013/530299 ,  A61F2013/530496 ,  A61F2013/530547 ,  A61F2013/5349 ,  Y10T156/10

摘要： The present invention addresses the problem of providing an absorbent article in which a bonding part for bonding a liquid-permeable layer to an absorbent core has been formed in a low-basis-weight region of the absorbent core and which has all of sufficient flexural rigidity of the bonding part, sufficient bonding strength of the bonding part, and sufficient liquid-absorbing properties. This problem is solved with an absorbent core which comprises a first region that has a given absorbent-material basis weight and second regions (regions 411a, 411b) that have a lower absorbent-material basis weight than the first region, wherein the ratio of the basis weight of a highly absorbing polymer to the basis weight of the absorbent material in the second regions is regulated to 10/100 to 47/100, and compressed parts are formed inside the second regions.