JPS55133917A - Deep drawing process for polyester film - Google Patents
Deep drawing process for polyester filmInfo
- Publication number
- JPS55133917A JPS55133917A JP4218879A JP4218879A JPS55133917A JP S55133917 A JPS55133917 A JP S55133917A JP 4218879 A JP4218879 A JP 4218879A JP 4218879 A JP4218879 A JP 4218879A JP S55133917 A JPS55133917 A JP S55133917A
- Authority
- JP
- Japan
- Prior art keywords
- deep drawing
- heated
- polyethylene terephthalate
- film
- given
- 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
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To perform a deep drawing being excellent in size stability, by a method wherein a polyethylene terephthalate film held in a tension state is heated to a given temperature for softening, and is then blow-molded at a given temperature range.
CONSTITUTION: An unprocessed polyethylene terephthalate film is held in a tension state at surroundings of a given shaped frame, the film being heated for a period of a given time in an electric furnace, which is maintained at 280°C, for softening. The film heated to a temperature area ranging from 220W180°C is then blow- molded by the aid of an oilic press, the molded product being removed from a mold for cooling. This causes an easy deep drawing of the polyethylene terephthalate film.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4218879A JPS5923537B2 (en) | 1979-04-06 | 1979-04-06 | Deep pattern processing method for polyester film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4218879A JPS5923537B2 (en) | 1979-04-06 | 1979-04-06 | Deep pattern processing method for polyester film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55133917A true JPS55133917A (en) | 1980-10-18 |
JPS5923537B2 JPS5923537B2 (en) | 1984-06-02 |
Family
ID=12629023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4218879A Expired JPS5923537B2 (en) | 1979-04-06 | 1979-04-06 | Deep pattern processing method for polyester film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5923537B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5867411A (en) * | 1981-10-19 | 1983-04-22 | Teijin Ltd | Forming method of polyester film |
JPS58175628A (en) * | 1982-04-09 | 1983-10-14 | Toray Ind Inc | Drawing process for biaxially stretched polyester film |
JPS6083823A (en) * | 1983-10-17 | 1985-05-13 | Teijin Ltd | Manufacture of thick and cylindrical formed object of polyester |
-
1979
- 1979-04-06 JP JP4218879A patent/JPS5923537B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5867411A (en) * | 1981-10-19 | 1983-04-22 | Teijin Ltd | Forming method of polyester film |
JPS58175628A (en) * | 1982-04-09 | 1983-10-14 | Toray Ind Inc | Drawing process for biaxially stretched polyester film |
JPS6083823A (en) * | 1983-10-17 | 1985-05-13 | Teijin Ltd | Manufacture of thick and cylindrical formed object of polyester |
Also Published As
Publication number | Publication date |
---|---|
JPS5923537B2 (en) | 1984-06-02 |
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