JPS6424738A - Water-absorptive sheet - Google Patents

Water-absorptive sheet

Info

Publication number
JPS6424738A
JPS6424738A JP62181652A JP18165287A JPS6424738A JP S6424738 A JPS6424738 A JP S6424738A JP 62181652 A JP62181652 A JP 62181652A JP 18165287 A JP18165287 A JP 18165287A JP S6424738 A JPS6424738 A JP S6424738A
Authority
JP
Japan
Prior art keywords
water
base material
layer
absorptive
synthetic resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62181652A
Other languages
Japanese (ja)
Other versions
JP2709813B2 (en
Inventor
Toshihito Tomizawa
Yoichi Ogiwara
Hisao Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP62181652A priority Critical patent/JP2709813B2/en
Publication of JPS6424738A publication Critical patent/JPS6424738A/en
Application granted granted Critical
Publication of JP2709813B2 publication Critical patent/JP2709813B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)

Abstract

PURPOSE:To make economically a water-absorptive sheet suitable to preserve perishable foods, by heating two layers of base material sandwiching a patterned water-absorptive layer between the two sheets, fusing and sticking the both together in the non-patterned area by heat. CONSTITUTION:Since it is desirable to form a water-absorptive layer 3 by means of printing, a resin with a high water absorptivity is dispersed in a vehicle and used as a coating agent. The ratio of this resin to the coating agent is generally 5-70wt.% and the ratio of binder may be 3-50% by weight, in the same manner as for the conventional paint and printing ink. At least two layers of base material are to be used and at least one of them must be water-permeable. As an impermeable layer 2 of base material, various kinds of synthetic resin films or sheets, or metal foils can be applied. When extruding a thermoplastic synthetic resin to coat the base material of impermeable layer 1 formed as a water-absorptive layer 3, the extrudate of synthetic resin which can be processed by extrusion-coating is heated, molten and stuck with the non-patterned area of the water-absorption layer, and the upper and lower layers of base material are adhered together.
JP62181652A 1987-07-21 1987-07-21 Method for producing water-absorbent sheet Expired - Fee Related JP2709813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181652A JP2709813B2 (en) 1987-07-21 1987-07-21 Method for producing water-absorbent sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181652A JP2709813B2 (en) 1987-07-21 1987-07-21 Method for producing water-absorbent sheet

Publications (2)

Publication Number Publication Date
JPS6424738A true JPS6424738A (en) 1989-01-26
JP2709813B2 JP2709813B2 (en) 1998-02-04

Family

ID=16104489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181652A Expired - Fee Related JP2709813B2 (en) 1987-07-21 1987-07-21 Method for producing water-absorbent sheet

Country Status (1)

Country Link
JP (1) JP2709813B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03243A (en) * 1989-05-29 1991-01-07 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbable/water-retentive sheet and preparation thereof
JPH07241944A (en) * 1994-03-03 1995-09-19 Kinsei Seishi Kk Water absorptive mat
JP2008207393A (en) * 2007-02-23 2008-09-11 Three M Innovative Properties Co Waterproof sheet and its manufacturing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249491B (en) * 2014-09-23 2016-05-25 江苏宏远新材料科技有限公司 High-tenacity waterproof film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103838A (en) * 1980-12-19 1982-06-28 Toppan Printing Co Ltd Water absorbing and holding sheet
JPS5849778U (en) * 1981-09-29 1983-04-04 岐阜プラスチック工業株式会社 Tray for food packaging
JPS6120594U (en) * 1984-07-10 1986-02-06 菊水化学工業株式会社 Rollable dew-proof wall covering sheet
JPS6331925U (en) * 1986-08-15 1988-03-01

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103838A (en) * 1980-12-19 1982-06-28 Toppan Printing Co Ltd Water absorbing and holding sheet
JPS5849778U (en) * 1981-09-29 1983-04-04 岐阜プラスチック工業株式会社 Tray for food packaging
JPS6120594U (en) * 1984-07-10 1986-02-06 菊水化学工業株式会社 Rollable dew-proof wall covering sheet
JPS6331925U (en) * 1986-08-15 1988-03-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03243A (en) * 1989-05-29 1991-01-07 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbable/water-retentive sheet and preparation thereof
JPH07241944A (en) * 1994-03-03 1995-09-19 Kinsei Seishi Kk Water absorptive mat
JP2008207393A (en) * 2007-02-23 2008-09-11 Three M Innovative Properties Co Waterproof sheet and its manufacturing method

Also Published As

Publication number Publication date
JP2709813B2 (en) 1998-02-04

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees