JPS5793123A - Method for transverse stretching of polymer film - Google Patents

Method for transverse stretching of polymer film

Info

Publication number
JPS5793123A
JPS5793123A JP17003080A JP17003080A JPS5793123A JP S5793123 A JPS5793123 A JP S5793123A JP 17003080 A JP17003080 A JP 17003080A JP 17003080 A JP17003080 A JP 17003080A JP S5793123 A JPS5793123 A JP S5793123A
Authority
JP
Japan
Prior art keywords
wound
film
polymer film
around
spring
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
JP17003080A
Other languages
Japanese (ja)
Inventor
Shigeru Asako
Shunzaburo Oga
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP17003080A priority Critical patent/JPS5793123A/en
Publication of JPS5793123A publication Critical patent/JPS5793123A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To stretch a polymer film in the transverse direction using an energy conservation type equipment which is easy to operate and inexpensive by a method wherein a polymer film is wound up around an annular body capable of moving in the axial direction and then the wound-up article is moved in such a direction as to separate both ends from each other. CONSTITUTION:The polymer film 1 (for example, a polypropylene film uniaxially oriented in the longitudinal direction by a roll stretching machine or the like) is wound up directly around a tension coil spring 3, for example, with spacers 2 for chucks provided at both ends thereof, or, alternatively, the film 1 is wound up into a pipelike form and the coil spring 2 is inserted into it. Then, both ends of the wound film 1 are clamped by the chucks 4, and after heating to a stretching temperature in a thermostatic chamber, the film 1 is transversely stretched by driving it together with the spring 3 in the axial direction of the spring 3, for example, through a wire rope 6. After the stretching operation, the film 1 is subjected to an after-treatment and is wound up, for example, around a pipe or the like.
JP17003080A 1980-12-01 1980-12-01 Method for transverse stretching of polymer film Pending JPS5793123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17003080A JPS5793123A (en) 1980-12-01 1980-12-01 Method for transverse stretching of polymer film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17003080A JPS5793123A (en) 1980-12-01 1980-12-01 Method for transverse stretching of polymer film

Publications (1)

Publication Number Publication Date
JPS5793123A true JPS5793123A (en) 1982-06-10

Family

ID=15897296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17003080A Pending JPS5793123A (en) 1980-12-01 1980-12-01 Method for transverse stretching of polymer film

Country Status (1)

Country Link
JP (1) JPS5793123A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111976126A (en) * 2020-07-20 2020-11-24 朱爱玲 Pipeline stretching machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111976126A (en) * 2020-07-20 2020-11-24 朱爱玲 Pipeline stretching machine

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