JPS5461269A - Production of drawn thermoplastic resin film - Google Patents
Production of drawn thermoplastic resin filmInfo
- Publication number
- JPS5461269A JPS5461269A JP12828277A JP12828277A JPS5461269A JP S5461269 A JPS5461269 A JP S5461269A JP 12828277 A JP12828277 A JP 12828277A JP 12828277 A JP12828277 A JP 12828277A JP S5461269 A JPS5461269 A JP S5461269A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- temperature
- drawn
- film
- resin 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.)
- Pending
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To obtain a drawn film capable of preventing the central part of the film from bow drawing lagging behind the ends, by selecting the drawing temperature in the biaxial drawing of a thermoplastic resin film as a specific value depending on the draw ratio of the uniaxial drawing.
CONSTITUTION: A uniaxially drawn thermoplastic resin film which is drawn at a draw ratio ≥ 1.1 in the longitudinal and lateral directions at a drawing temperature above the glass transition temperature of the thermoplastic resin by the tentering method. The preheating temperature Y(°C) immediately before the drawing is set at the following temperature: Y ≥ T+ 5A [T is the drawing temperature (°C); A is the uniaxial draw ratio]. High-density polyethylene, polypropylene, polyester, polyamide, etc. may be cited as the film material
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12828277A JPS5461269A (en) | 1977-10-25 | 1977-10-25 | Production of drawn thermoplastic resin film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12828277A JPS5461269A (en) | 1977-10-25 | 1977-10-25 | Production of drawn thermoplastic resin film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5461269A true JPS5461269A (en) | 1979-05-17 |
Family
ID=14980960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12828277A Pending JPS5461269A (en) | 1977-10-25 | 1977-10-25 | Production of drawn thermoplastic resin film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461269A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3124290A1 (en) * | 1980-06-20 | 1982-05-13 | Mitsubishi Petrochemical Co., Ltd., Tokyo | Process for producing a biaxially oriented polypropylene film and film produced according to this process |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5230876A (en) * | 1975-06-25 | 1977-03-08 | Unilever Nv | Method of improving property of thermoplastic films |
-
1977
- 1977-10-25 JP JP12828277A patent/JPS5461269A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5230876A (en) * | 1975-06-25 | 1977-03-08 | Unilever Nv | Method of improving property of thermoplastic films |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3124290A1 (en) * | 1980-06-20 | 1982-05-13 | Mitsubishi Petrochemical Co., Ltd., Tokyo | Process for producing a biaxially oriented polypropylene film and film produced according to this process |
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