JPS5780027A - Heat-shrinkable film - Google Patents

Heat-shrinkable film

Info

Publication number
JPS5780027A
JPS5780027A JP15682880A JP15682880A JPS5780027A JP S5780027 A JPS5780027 A JP S5780027A JP 15682880 A JP15682880 A JP 15682880A JP 15682880 A JP15682880 A JP 15682880A JP S5780027 A JPS5780027 A JP S5780027A
Authority
JP
Japan
Prior art keywords
shrinkage ratio
heat shrinkage
heat
lateral
film
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
JP15682880A
Other languages
Japanese (ja)
Other versions
JPH024411B2 (en
Inventor
Tsutomu Isaka
Mitsunobu Kawase
Hiromu Nagano
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP15682880A priority Critical patent/JPS5780027A/en
Publication of JPS5780027A publication Critical patent/JPS5780027A/en
Publication of JPH024411B2 publication Critical patent/JPH024411B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled film of excellent anisotropic heat shrinkability, heat sealability and printability, by making twice or more the heat shrinkage ratio at either lateral or longitudinal direction of the polyolefin type film at the specified temperature to the heat shrinkage ratio at another direction.
CONSTITUTION: After the unstretched film obtained by melt-extruding the compound in which various additives (e.g. antistatic agent etc.) are incorporated into copolymer of propylene and C4W10 α-olefin is stretched in each direction so as heat shrinkage ratio of either lateral or longitudinal direction at 120°C is twice or more to heat shrinkage ratio of another direction, preferably 6W12 times in lateral direction at 90W140°C, 1W1.5 times in longitudinal direction at 80W140°C, it is cooled or quenched and further surface activation treatment is ordinarily performed, thus the aimed film is obtained. Also it is preferable that heat shrinkage ratio in lateral direction is made twice or more, ordinarily 3.5W 4 times, i.e. heat shrinkage ratio is made 15W80% in manufacturing viewpoint.
COPYRIGHT: (C)1982,JPO&Japio
JP15682880A 1980-11-06 1980-11-06 Heat-shrinkable film Granted JPS5780027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15682880A JPS5780027A (en) 1980-11-06 1980-11-06 Heat-shrinkable film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15682880A JPS5780027A (en) 1980-11-06 1980-11-06 Heat-shrinkable film

Publications (2)

Publication Number Publication Date
JPS5780027A true JPS5780027A (en) 1982-05-19
JPH024411B2 JPH024411B2 (en) 1990-01-29

Family

ID=15636234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15682880A Granted JPS5780027A (en) 1980-11-06 1980-11-06 Heat-shrinkable film

Country Status (1)

Country Link
JP (1) JPS5780027A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054843A (en) * 1983-09-07 1985-03-29 東レ株式会社 Label for metallic can
JPS60127133A (en) * 1983-12-14 1985-07-06 Sumitomo Chem Co Ltd Film for shrink package
JPS6262846A (en) * 1985-09-13 1987-03-19 Mitsubishi Plastics Ind Ltd Polypropylene film for shrinkable label

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054843A (en) * 1983-09-07 1985-03-29 東レ株式会社 Label for metallic can
JPS60127133A (en) * 1983-12-14 1985-07-06 Sumitomo Chem Co Ltd Film for shrink package
JPH0433619B2 (en) * 1983-12-14 1992-06-03 Sumitomo Chemical Co
JPS6262846A (en) * 1985-09-13 1987-03-19 Mitsubishi Plastics Ind Ltd Polypropylene film for shrinkable label
JPH0546304B2 (en) * 1985-09-13 1993-07-13 Mitsubishi Plastics Ind

Also Published As

Publication number Publication date
JPH024411B2 (en) 1990-01-29

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