JPS5756213A - Molding of highly transparent synthetic resin packaging vessel - Google Patents
Molding of highly transparent synthetic resin packaging vesselInfo
- 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
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
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)
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 |
-
1980
- 1980-09-22 JP JP13182580A patent/JPS5756213A/en active Pending
Cited By (1)
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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