JPS5759718A - Preparation of biaxially orented composite film - Google Patents

Preparation of biaxially orented composite film

Info

Publication number
JPS5759718A
JPS5759718A JP55134983A JP13498380A JPS5759718A JP S5759718 A JPS5759718 A JP S5759718A JP 55134983 A JP55134983 A JP 55134983A JP 13498380 A JP13498380 A JP 13498380A JP S5759718 A JPS5759718 A JP S5759718A
Authority
JP
Japan
Prior art keywords
film
oriented
laminated
high density
pva type
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.)
Pending
Application number
JP55134983A
Other languages
Japanese (ja)
Inventor
Junkichi Watanabe
Jun Komatsuzaki
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.)
Unitika Ltd
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP55134983A priority Critical patent/JPS5759718A/en
Publication of JPS5759718A publication Critical patent/JPS5759718A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)

Abstract

PURPOSE: To obtain the titled film excellent in oxygen and vapor barrier properties and useful for a food package or the like by a method wherein a PVA type film is laminated to one surface of a high density PE film preliminarily oriented to a longitudinal and a traverse directions and resultant laminated film is simultaneously oriented to a biaxial direction.
CONSTITUTION: To one surface of a high density PE film preliminarly oriented by preliminarily orienting to a uniaxial direction or a biaxial direction in such a range that a residual elongation degree is 300% or more in a longitudinal and a traverse directions, a PVA type film is laminated. The obtained laminated film is simultaneously oriented to a biaxial direction at a degree of 500% or more of an area orientation magnification to obtain a biaxially oriented composite film. The resultant film has usuful property as a barrier material for packing a food by combining the high density PE film and the PVA type film excellent in vapor barrier property and gas barrier property respectively and, further imparting orientation effect suitable for respective polymers to said respective polymers.
COPYRIGHT: (C)1982,JPO&Japio
JP55134983A 1980-09-26 1980-09-26 Preparation of biaxially orented composite film Pending JPS5759718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55134983A JPS5759718A (en) 1980-09-26 1980-09-26 Preparation of biaxially orented composite film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55134983A JPS5759718A (en) 1980-09-26 1980-09-26 Preparation of biaxially orented composite film

Publications (1)

Publication Number Publication Date
JPS5759718A true JPS5759718A (en) 1982-04-10

Family

ID=15141174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55134983A Pending JPS5759718A (en) 1980-09-26 1980-09-26 Preparation of biaxially orented composite film

Country Status (1)

Country Link
JP (1) JPS5759718A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115626U (en) * 1984-12-28 1986-07-22
SG83633A1 (en) * 1993-12-01 2001-10-16 Mobil Oil Corp Coated hdpe film and its method of manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61115626U (en) * 1984-12-28 1986-07-22
SG83633A1 (en) * 1993-12-01 2001-10-16 Mobil Oil Corp Coated hdpe film and its method of manufacture

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