JPS5567416A - Preparation of thermoplastic resin film - Google Patents
Preparation of thermoplastic resin filmInfo
- Publication number
- JPS5567416A JPS5567416A JP13980678A JP13980678A JPS5567416A JP S5567416 A JPS5567416 A JP S5567416A JP 13980678 A JP13980678 A JP 13980678A JP 13980678 A JP13980678 A JP 13980678A JP S5567416 A JPS5567416 A JP S5567416A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- film
- thermoplastic resin
- curing
- under
- 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
- 229920005992 thermoplastic resin Polymers 0.000 title abstract 4
- 238000001816 cooling Methods 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To decrease triming amount and adjust width of film freely by setting the temperature of at least one end of a slit under the curing point of thermoplastic resin and forming the curing layer of the resin at the end part.
CONSTITUTION: When fused crystalline thermoplastic resin is pushed out of the slit and cured and undrawn film is prepared, the temperature of at least one end of the slit is set under the curing point of thermoplastic resin (20°C under the curing point, preferable), the curing layer is formed at the end and the film is produced. It is possible to bring the end part of the slit under the curing point of the extruded resin by circulating a refrigerant through a cooling device fitted around the end of the slit and flowing compressed air to the regulating bolt hole at the site corresponding to the slit part and cooling the undrawn film. The thickness and width of the trimming part of the film can be reduced by this method.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53139806A JPS5923544B2 (en) | 1978-11-15 | 1978-11-15 | Manufacturing method of thermoplastic resin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53139806A JPS5923544B2 (en) | 1978-11-15 | 1978-11-15 | Manufacturing method of thermoplastic resin film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5567416A true JPS5567416A (en) | 1980-05-21 |
| JPS5923544B2 JPS5923544B2 (en) | 1984-06-02 |
Family
ID=15253862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53139806A Expired JPS5923544B2 (en) | 1978-11-15 | 1978-11-15 | Manufacturing method of thermoplastic resin film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923544B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985718A (en) * | 1982-11-10 | 1984-05-17 | Toray Ind Inc | Extruder of synthetic resin sheet |
-
1978
- 1978-11-15 JP JP53139806A patent/JPS5923544B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985718A (en) * | 1982-11-10 | 1984-05-17 | Toray Ind Inc | Extruder of synthetic resin sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5923544B2 (en) | 1984-06-02 |
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