JPS6480527A - Water dispersion polyvinyl alcohol laminated film and its manufacture - Google Patents

Water dispersion polyvinyl alcohol laminated film and its manufacture

Info

Publication number
JPS6480527A
JPS6480527A JP62238282A JP23828287A JPS6480527A JP S6480527 A JPS6480527 A JP S6480527A JP 62238282 A JP62238282 A JP 62238282A JP 23828287 A JP23828287 A JP 23828287A JP S6480527 A JPS6480527 A JP S6480527A
Authority
JP
Japan
Prior art keywords
film
polyvinyl alcohol
polymerization degree
water dispersion
manufacture
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
JP62238282A
Other languages
Japanese (ja)
Other versions
JPH0815773B2 (en
Inventor
Hajime Mitarai
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.)
Nichigo Film KK
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nichigo Film KK
Nippon Synthetic Chemical Industry 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 Nichigo Film KK, Nippon Synthetic Chemical Industry Co Ltd filed Critical Nichigo Film KK
Priority to JP62238282A priority Critical patent/JPH0815773B2/en
Publication of JPS6480527A publication Critical patent/JPS6480527A/en
Publication of JPH0815773B2 publication Critical patent/JPH0815773B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Dental Preparations (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To improve water dispersion properties and mechanical strength by laminating a film of a high polymerization degree polyvinyl alcohol of given saponification degree and a film of a low polymerization degree polyvinyl alcohol of given saponification degree. CONSTITUTION:Water solution of low polymerization degree polyvinyl alcohol of 35-95mol% of saponification degree and 800 or less of polymerization degree is applied on a base film 3 having peeling properties and dried to form a low polymerization degree polyvinyl alcohol film 2. A film 1 constituted of high polymerization degree alcohol of 70-93mol% of saponification degree and 800-2000 of polymerization degree formed separately is heat contact bonded on said film 2, and then the base film 3 is peeled off to manufacture a water dispersion polyvinyl alcohol laminated film. As for the base film 3 having peeling properties, a matted film is suitable.
JP62238282A 1987-09-22 1987-09-22 Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same Expired - Fee Related JPH0815773B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62238282A JPH0815773B2 (en) 1987-09-22 1987-09-22 Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62238282A JPH0815773B2 (en) 1987-09-22 1987-09-22 Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same

Publications (2)

Publication Number Publication Date
JPS6480527A true JPS6480527A (en) 1989-03-27
JPH0815773B2 JPH0815773B2 (en) 1996-02-21

Family

ID=17027872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62238282A Expired - Fee Related JPH0815773B2 (en) 1987-09-22 1987-09-22 Water-dispersible polyvinyl alcohol-based laminate film and method for producing the same

Country Status (1)

Country Link
JP (1) JPH0815773B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06234195A (en) * 1991-12-17 1994-08-23 Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho Polyvinyl alcohol film
JP2016064587A (en) * 2014-09-25 2016-04-28 積水フィルム株式会社 Water soluble multilayer film and vegetation sheet using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06234195A (en) * 1991-12-17 1994-08-23 Gijutsu Kenkyu Kumiai Iryo Fukushi Kiki Kenkyusho Polyvinyl alcohol film
JP2016064587A (en) * 2014-09-25 2016-04-28 積水フィルム株式会社 Water soluble multilayer film and vegetation sheet using the same

Also Published As

Publication number Publication date
JPH0815773B2 (en) 1996-02-21

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Legal Events

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