JPS5621831A - Method of longitudinally stretching thermoplastic resin sheet or film and device thereof - Google Patents
Method of longitudinally stretching thermoplastic resin sheet or film and device thereofInfo
- Publication number
- JPS5621831A JPS5621831A JP9666779A JP9666779A JPS5621831A JP S5621831 A JPS5621831 A JP S5621831A JP 9666779 A JP9666779 A JP 9666779A JP 9666779 A JP9666779 A JP 9666779A JP S5621831 A JPS5621831 A JP S5621831A
- Authority
- JP
- Japan
- Prior art keywords
- film
- rolls
- thermoplastic resin
- stretched
- sheet
- 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
Links
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE:To partially and efficiently provide a film with heat energy and to obtain a stretched film having an even quality, by a method wherein thermoplastic resin film is heated by a particular infrared heater for longitudinal stretching. CONSTITUTION:A thermoplastic resin sheet or film is continuously stretched between preheating rolls PH#3 and PH#4, which rotate at a given low-peripheral speed, and cooling rolls QR#1 and QR#2, which turn at a given high-peripheral speed, as it is heated by means of infrared heaters #1 and #2 located in parallel with said rolls. In this case, an infrared heater #3, whose infrared rays radiation surface 1 is substantially plane, is located so that the surface 1 is in parallel with the running sheet or film surface. It is preferable that the sheet or film is stretched in the direction of a roll tangent line which does not cross a line for connecting together a center of the preheating roll PH#4 and a center of the cooling roll QR#1, and the infrared heater #3 is located at a position where it is surrounded with the rolls and the film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9666779A JPS5621831A (en) | 1979-07-31 | 1979-07-31 | Method of longitudinally stretching thermoplastic resin sheet or film and device thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9666779A JPS5621831A (en) | 1979-07-31 | 1979-07-31 | Method of longitudinally stretching thermoplastic resin sheet or film and device thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5621831A true JPS5621831A (en) | 1981-02-28 |
JPS6312770B2 JPS6312770B2 (en) | 1988-03-22 |
Family
ID=14171154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9666779A Granted JPS5621831A (en) | 1979-07-31 | 1979-07-31 | Method of longitudinally stretching thermoplastic resin sheet or film and device thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621831A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6249679A (en) * | 1985-08-29 | 1987-03-04 | Nec Corp | Optical signal receiving circuit |
JP2009262484A (en) * | 2008-04-28 | 2009-11-12 | Shinshu Univ | Heating method of propylene type polymer film or sheet and production process of stretched film |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521899U (en) * | 1975-06-23 | 1977-01-07 |
-
1979
- 1979-07-31 JP JP9666779A patent/JPS5621831A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521899U (en) * | 1975-06-23 | 1977-01-07 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6249679A (en) * | 1985-08-29 | 1987-03-04 | Nec Corp | Optical signal receiving circuit |
JP2009262484A (en) * | 2008-04-28 | 2009-11-12 | Shinshu Univ | Heating method of propylene type polymer film or sheet and production process of stretched film |
Also Published As
Publication number | Publication date |
---|---|
JPS6312770B2 (en) | 1988-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR970000509A (en) | Method and apparatus for producing directional plastic straps and straps produced thereby | |
DE59205801D1 (en) | Device for the production of tubular bodies | |
ES287138A1 (en) | Method for preparing a resinant thinoplastic thin-oriented film (Machine-translation by Google Translate, not legally binding) | |
JPS5621831A (en) | Method of longitudinally stretching thermoplastic resin sheet or film and device thereof | |
GB1101899A (en) | Improvements in or relating to methods and apparatus for treating thermoplastic sheet material | |
JPS5519511A (en) | Method of covering steel pipe with plastic | |
US2958367A (en) | Machine for welding plastics | |
JPS5534937A (en) | Manufacturing method of thermally plastic resin stretched film | |
JPS55123426A (en) | Preparation of flat thermoplastic sheet with improved dimension stability | |
JPS6470748A (en) | Manufacture of curled photographic film | |
GB601796A (en) | Apparatus and process for pressing plastic sheeting | |
FR2065292A5 (en) | Heat fixing thermoplastic resin developed images | |
JPS5515833A (en) | Laminatetube manufacturing method | |
FR2322710A1 (en) | Embossed thermoplastic films with high mechanical strength - produced by indirect heating and immediately passing over cooled embossing roller | |
GB870734A (en) | Improvements relating to the manufacture of belting | |
JPS6422531A (en) | Method for simultaneously biaxially stretching sheet-like material | |
GB1069598A (en) | Improvements in method and apparatus for pleating material | |
GB887737A (en) | Improvements relating to apparatus and methods for glaze coating paper and the like | |
GB1419972A (en) | Method and apparatus for stretching plastic material | |
GB1044772A (en) | Improvements in or relating to the stretching of thermoplastic films | |
ATE129951T1 (en) | DEVICE FOR PREHEATING PLASTIC FILMS. | |
JPS57126619A (en) | Manufacture for belt made of thermoplastic resin | |
GB1261296A (en) | Copying machine | |
KR890003514A (en) | Stretching method of polyester film sheet | |
JPS55130735A (en) | Postforming device |