JPS5557434A - Preparation of package shock absorbing material - Google Patents
Preparation of package shock absorbing materialInfo
- Publication number
- JPS5557434A JPS5557434A JP13051578A JP13051578A JPS5557434A JP S5557434 A JPS5557434 A JP S5557434A JP 13051578 A JP13051578 A JP 13051578A JP 13051578 A JP13051578 A JP 13051578A JP S5557434 A JPS5557434 A JP S5557434A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- shock absorbing
- materials
- injected
- plastic foaming
- 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
- Buffer Packaging (AREA)
- Laminated Bodies (AREA)
Abstract
PURPOSE: To enable reducing the thickness of package shock absorbing materials by providing material injecting fillers at two or more positions in the mold of a foaming machine and injecting two or more kinds of plastic foaming materials of different shock absorbing characteristics from the fillers into the mold at the same time.
CONSTITUTION: At two different positions in a concave mold 12, material injecting fillers 18 and 19 are provided and plastic foaming material 7 of kind A in a material hopper 5 is injected into a mold 15 from the filler 18 via a material pipe 9 by blowing air from an air blowing port 10 whose air flow quantity is controlled by a control valve 17. In the same way, plastic foaming material 6 of kind B in a material hopper 4 is injected into the mold 15 from the filler 19 via a material pipe 8. By so doing, the plastic foaming materials 6 and 7 injected into the mold 15 at the same time are heated, foamed and formed into one body and a package shock sbsorbing material consisting of foamed materials 2 and 3 are obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53130515A JPS5923547B2 (en) | 1978-10-25 | 1978-10-25 | Manufacturing method of packaging cushioning material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53130515A JPS5923547B2 (en) | 1978-10-25 | 1978-10-25 | Manufacturing method of packaging cushioning material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5557434A true JPS5557434A (en) | 1980-04-28 |
JPS5923547B2 JPS5923547B2 (en) | 1984-06-02 |
Family
ID=15036129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53130515A Expired JPS5923547B2 (en) | 1978-10-25 | 1978-10-25 | Manufacturing method of packaging cushioning material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5923547B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111605117B (en) * | 2019-12-23 | 2022-04-01 | 东莞市松裕塑胶皮具制品有限公司 | Process for molding E-TPU mobile phone protective shell through secondary compression molding |
-
1978
- 1978-10-25 JP JP53130515A patent/JPS5923547B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5923547B2 (en) | 1984-06-02 |
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