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Title:
WATER-ACTIVATED SHEET, WATER-ACTIVATED LABEL USING SAID SHEET, PRODUCTION METHOD FOR SAID LABEL, LABEL ADHERING DEVICE USING SAID LABEL, AND ADHEREND FOR SAID LABEL
Document Type and Number:
WIPO Patent Application WO/2013/058273
Kind Code:
A1
Abstract:
Provided is a water-activated sheet (1) which has a porous water-absorbing layer (3) on at least one surface thereof, the liquid absorbing capacity of the water-absorbing layer being in the range of 1-10ml/m2. In the water-activated sheet (1), an adhesive layer (4) formed by coating and then drying solid a water-based adhesive is provided on top of the water-absorbing layer of a paper material. When used in a label, the water-activated sheet resolves the problems of conventional glued labels, such as creases in the labels and seepage of the glue of the labels due to condensation, the labour required to attach labels, the residual glue on the adherend after peeling off the labels, and pollution in the water used to remove the residual glue.

Inventors:
UMEDA SHIGEYOSHI (JP)
TAMAUCHI HIROMITSU (JP)
KIMURA KAZUYUKI (JP)
YAMASHITA KYOICHI (JP)
Application Number:
PCT/JP2012/076808
Publication Date:
April 25, 2013
Filing Date:
October 17, 2012
Export Citation:
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Assignee:
YUPO CORP (JP)
International Classes:
B32B5/18; B32B27/00; B32B27/10; B65C9/22; C09J7/29; G09F3/10
Domestic Patent References:
WO2009024357A12009-02-26
Foreign References:
JP2004347658A2004-12-09
JPS55152774A1980-11-28
JPH0640445A1994-02-15
JP2008533511A2008-08-21
JPH0518433B21993-03-11
JPS6422290A1989-01-25
JPH06100847A1994-04-12
JPH06100848A1994-04-12
JPH07319390A1995-12-08
JPH0876690A1996-03-22
JPH05263010A1993-10-12
JPH07300568A1995-11-14
JPS5748340A1982-03-19
JPS63235377A1988-09-30
JPH07314622A1995-12-05
JP2000289156A2000-10-17
JP2002036470A2002-02-05
JP2002173538A2002-06-21
JP2007083714A2007-04-05
JPS4640794B11971-12-02
JPH0858755A1996-03-05
JPH11321831A1999-11-24
JP2000025725A2000-01-25
Other References:
See also references of EP 2770031A4
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
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Claims:



 
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