JPS568219A - Method for heating film by heat roll - Google Patents
Method for heating film by heat rollInfo
- Publication number
- JPS568219A JPS568219A JP8350279A JP8350279A JPS568219A JP S568219 A JPS568219 A JP S568219A JP 8350279 A JP8350279 A JP 8350279A JP 8350279 A JP8350279 A JP 8350279A JP S568219 A JPS568219 A JP S568219A
- Authority
- JP
- Japan
- Prior art keywords
- film
- roll
- heated
- section
- heat roll
- 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
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To exfoliate a film completely without any shrinkage thereof by a method wherein the suction is made toward the inside of a heating roll at the section of the roll where the film is softened, while it is stopped at a section of the roll where the film is melted, and further the air is discharged from the inside of the heating roll where the film is to be exfoliated.
CONSTITUTION: A film 12 is wound round a heating roll 8 and is heated by heaters in the plural number arranged on the outside. In the softening area where the film 12 wound around the roll 8 starts to be heated, the film 12 is sucked toward the inside of the roll 8 so as not to shrink. Suction is stopped in the melting area, such as section 43, where the film 12 is heated and melted to some degree. And in the exfoliation section where the film 12 exfoliates from the heat roll 8 the air is discharged from inside of the roll 8. In this way, the film 12 is heated and exfoliated excellently without any shrinkage thereof.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8350279A JPS568219A (en) | 1979-07-03 | 1979-07-03 | Method for heating film by heat roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8350279A JPS568219A (en) | 1979-07-03 | 1979-07-03 | Method for heating film by heat roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS568219A true JPS568219A (en) | 1981-01-28 |
Family
ID=13804248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8350279A Pending JPS568219A (en) | 1979-07-03 | 1979-07-03 | Method for heating film by heat roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS568219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845453U (en) * | 1981-09-24 | 1983-03-26 | 株式会社神崎高級工機製作所 | Inertial slip prevention device for tractors, etc. |
| JP2007044979A (en) * | 2005-08-09 | 2007-02-22 | Kawakami Sangyo Co Ltd | Method and apparatus for producing plastic bubble sheet with lamination film laminated on back film |
| JP2010089449A (en) * | 2008-10-10 | 2010-04-22 | Kawakami Sangyo Co Ltd | Synthetic resin made bubble sheet and method of manufacturing the same |
-
1979
- 1979-07-03 JP JP8350279A patent/JPS568219A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845453U (en) * | 1981-09-24 | 1983-03-26 | 株式会社神崎高級工機製作所 | Inertial slip prevention device for tractors, etc. |
| JP2007044979A (en) * | 2005-08-09 | 2007-02-22 | Kawakami Sangyo Co Ltd | Method and apparatus for producing plastic bubble sheet with lamination film laminated on back film |
| JP2010089449A (en) * | 2008-10-10 | 2010-04-22 | Kawakami Sangyo Co Ltd | Synthetic resin made bubble sheet and method of manufacturing the same |
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