JPS55133917A - Deep drawing process for polyester film - Google Patents

Deep drawing process for polyester film

Info

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
Application number
JP4218879A
Other languages
Japanese (ja)
Other versions
JPS5923537B2 (en
Inventor
Shiro Kitagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ONISHI KAKO KK
ONISHI KAKOU KK
Original Assignee
ONISHI KAKO KK
ONISHI KAKOU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ONISHI KAKO KK, ONISHI KAKOU KK filed Critical ONISHI KAKO KK
Priority to JP4218879A priority Critical patent/JPS5923537B2/en
Publication of JPS55133917A publication Critical patent/JPS55133917A/en
Publication of JPS5923537B2 publication Critical patent/JPS5923537B2/en
Expired legal-status Critical Current

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
JP4218879A 1979-04-06 1979-04-06 Deep pattern processing method for polyester film Expired JPS5923537B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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