公开(公告)号：US20210338494A1

公开(公告)日：2021-11-04

申请号：US17274506

申请日：2019-07-17

Applicant: DAIO PAPER CORPORATION ,  TOHOKU UNIVERSITY

Inventor： Atsuko HASEZAWA ,  Kazuo HOKKIRIGAWA ,  Takeshi YAMAGUCHI ,  Kei SHIBATA

IPC: A61F13/56 ,  A61F13/472 ,  A61F13/513 ,  A61F13/535 ,  A61F13/514

Abstract: An absorbent article includes a permeable top sheet, an impermeable back sheet, an absorbing part disposed between the top sheet and the back sheet, and a friction reducing layer disposed between the back sheet and the absorbing part. The friction between the friction reducing layer and the back sheet or the friction between the friction reducing layer and the absorbing part is less than the friction between the absorbing part and the back sheet.

公开(公告)号：US20180098672A1

公开(公告)日：2018-04-12

申请号：US15560665

申请日：2016-03-30

Applicant: DAIO PAPER CORPORATION

Inventor： Shinya IZUMI ,  Asako TANAKA ,  Atsuko HASEZAWA ,  Shinpei MUKOYAMA ,  Kosuke YAMAZAKI

IPC: A47K10/16 ,  B31F1/07 ,  A47L13/17

CPC classification number: A47K10/16 ,  A47K2010/3266 ,  A47L13/16 ,  A47L13/17 ,  B31F1/07 ,  B31F2201/0733 ,  B31F2201/0738 ,  B31F2201/0761 ,  B32B3/263 ,  B32B5/26 ,  D21H17/25 ,  D21H17/70 ,  D21H21/20 ,  D21H27/00 ,  D21H27/002 ,  D21H27/02 ,  D21H27/30

Abstract: Household tissue paper is obtained by applying a ply process to two or more sheets of base paper. First embossments and second embossments, arranged around the first embossments, are formed on an entire surface of the household tissue paper, a shape of a protruding part of each of the second embossments differing from a shape of a protruding part of each of the first embossments. Hence, because a contact area with an object to be cleaned or the like can be increased, it is possible to enhance surface strength of the household tissue paper being embossed and to enhance wiping performance.

公开(公告)号：US20190003128A1

公开(公告)日：2019-01-03

申请号：US15576750

申请日：2016-03-30

Applicant: DAIO PAPER CORPORATION

Inventor： Shinpei MUKOYAMA ,  Shinya IZUMI ,  Asako TANAKA ,  Atsuko HASEZAWA

IPC: D21H27/40 ,  D21H27/02 ,  D21H21/06 ,  D21H21/36 ,  D21H17/11 ,  D21H17/26 ,  D21H11/00 ,  B32B3/26 ,  B32B29/00 ,  A47K10/16 ,  B31F1/07

CPC classification number: D21H27/40 ,  A47K10/16 ,  A47K2010/3266 ,  A47L13/17 ,  B31F1/07 ,  B31F2201/0733 ,  B31F2201/0738 ,  B31F2201/0761 ,  B32B3/263 ,  B32B5/26 ,  B32B29/005 ,  B32B2307/7166 ,  B32B2432/00 ,  D21H11/00 ,  D21H17/11 ,  D21H17/25 ,  D21H17/26 ,  D21H21/06 ,  D21H21/20 ,  D21H21/36 ,  D21H27/00 ,  D21H27/002 ,  D21H27/02 ,  D21H27/30

Abstract: A toilet cleaning sheet 100 includes a multi-ply base paper sheet that is substantially water-dispersible. The multi-ply base paper sheet contains pulp and a water-soluble binder and is impregnated with an aqueous chemical agent. The basis weight of the multi-ply base paper sheet is 30 gsm to 150 gsm, and the content of the water-soluble binder increases towards a front surface and/or a back surface.

公开(公告)号：US20180146834A1

公开(公告)日：2018-05-31

申请号：US15576931

申请日：2016-03-30

Applicant: DAIO PAPER CORPORATION

Inventor： Shinya IZUMI ,  Asako TANAKA ,  Atsuko HASEZAWA ,  Shinpei MUKOYAMA ,  Kosuke YAMAZAKI

IPC: A47L13/17 ,  D21H19/34 ,  D21H27/30

CPC classification number: A47L13/17 ,  A47K11/10 ,  D21H17/06 ,  D21H19/00 ,  D21H19/34 ,  D21H27/30

Abstract: A hydrolysable sheet obtained by impregnating a base paper sheet, to which a water-soluble binder is added, with a chemical solution, wherein the base paper sheet is obtained by applying a ply process to a plurality of sheets of base paper and has a basis weight of from 30 gsm to 150 gsm, wherein a compounding ratio of softwood pulp to hardwood pulp is less than 1/1, wherein the chemical solution contains a cross-linking agent, which causes the water-soluble binder to initiate a cross-linking reaction, and a trihydric or higher alcohol, and wherein, with respect to a weight of the base paper sheet, the base paper sheet is impregnated with the trihydric or higher alcohol at 1% to 20% by weight.