JPS5756213A - Molding of highly transparent synthetic resin packaging vessel - Google Patents

Molding of highly transparent synthetic resin packaging vessel

Info

Publication number
JPS5756213A
JPS5756213A JP13182580A JP13182580A JPS5756213A JP S5756213 A JPS5756213 A JP S5756213A JP 13182580 A JP13182580 A JP 13182580A JP 13182580 A JP13182580 A JP 13182580A JP S5756213 A JPS5756213 A JP S5756213A
Authority
JP
Japan
Prior art keywords
sheet
air
synthetic resin
molding
highly transparent
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
Application number
JP13182580A
Other languages
Japanese (ja)
Inventor
Takemoto Imai
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.)
Gifu Plastic Industry Co Ltd
Original Assignee
Gifu Plastic Industry Co Ltd
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 Gifu Plastic Industry Co Ltd filed Critical Gifu Plastic Industry Co Ltd
Priority to JP13182580A priority Critical patent/JPS5756213A/en
Publication of JPS5756213A publication Critical patent/JPS5756213A/en
Pending legal-status Critical Current

Links

Landscapes

  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To mold a synthetic resin packaging vessel which maintains a crystal state at all times and is high in transparency by a method wherein a crystalline thermoplastic resin sheet is heated instantly up to the point immediately before the melting point and molded in vacuum, it is cooled quickly.
CONSTITUTION: After the crystalline thermoplastic resin sheet is preheated, it is moved to a molding chamber with a molding die upward and a hot plate downward and both ends of the sheet are hung by a retainer. Then, after the air in the closed molding chamber is removed at the rate of 60% of the air through the air hole in the upper die and 40% thereof through the air hole in the lower hot plate and heated by the plate just until the sheet begins to melt and molded under a vacuum state, the air is blown to cool the sheet quickly. Thus, the crystal state of the resin is kept at all times and a highly transparent synthetic resin vessel can be formed.
COPYRIGHT: (C)1982,JPO&Japio
JP13182580A 1980-09-22 1980-09-22 Molding of highly transparent synthetic resin packaging vessel Pending JPS5756213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13182580A JPS5756213A (en) 1980-09-22 1980-09-22 Molding of highly transparent synthetic resin packaging vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13182580A JPS5756213A (en) 1980-09-22 1980-09-22 Molding of highly transparent synthetic resin packaging vessel

Publications (1)

Publication Number Publication Date
JPS5756213A true JPS5756213A (en) 1982-04-03

Family

ID=15066975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13182580A Pending JPS5756213A (en) 1980-09-22 1980-09-22 Molding of highly transparent synthetic resin packaging vessel

Country Status (1)

Country Link
JP (1) JPS5756213A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863667A (en) * 1985-10-17 1989-09-05 G.O.R. Applicazioni Speciali S.P.A. Method of and device for applying a provisional protective covering to internal upholstery panels for vehicles, or the like, and panels provided with the said provisional protective covering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863667A (en) * 1985-10-17 1989-09-05 G.O.R. Applicazioni Speciali S.P.A. Method of and device for applying a provisional protective covering to internal upholstery panels for vehicles, or the like, and panels provided with the said provisional protective covering

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