JPS5557434A - Preparation of package shock absorbing material - Google Patents

Preparation of package shock absorbing material

Info

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
Application number
JP13051578A
Other languages
Japanese (ja)
Other versions
JPS5923547B2 (en
Inventor
Akio Iwamoto
Takanori Egawa
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.)
Hitachi Unyu Tokyo Monoreeru K
Original Assignee
Hitachi Unyu Tokyo Monoreeru K
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 Hitachi Unyu Tokyo Monoreeru K filed Critical Hitachi Unyu Tokyo Monoreeru K
Priority to JP53130515A priority Critical patent/JPS5923547B2/en
Publication of JPS5557434A publication Critical patent/JPS5557434A/en
Publication of JPS5923547B2 publication Critical patent/JPS5923547B2/en
Expired legal-status Critical Current

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
JP53130515A 1978-10-25 1978-10-25 Manufacturing method of packaging cushioning material Expired JPS5923547B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS5923547B2 (en) 1984-06-02

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