JPS5649220A - Manufacture of synthetic resin film - Google Patents

Manufacture of synthetic resin film

Info

Publication number
JPS5649220A
JPS5649220A JP12572879A JP12572879A JPS5649220A JP S5649220 A JPS5649220 A JP S5649220A JP 12572879 A JP12572879 A JP 12572879A JP 12572879 A JP12572879 A JP 12572879A JP S5649220 A JPS5649220 A JP S5649220A
Authority
JP
Japan
Prior art keywords
steel plate
plate belt
synthetic resin
resin film
driven
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
JP12572879A
Other languages
Japanese (ja)
Inventor
Mitsuhiko Akanuma
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP12572879A priority Critical patent/JPS5649220A/en
Publication of JPS5649220A publication Critical patent/JPS5649220A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/9145—Endless cooling belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE:To obtain a film having a uniform thickness and free of distortion by extruding a synthetic resin from an extrusion forming metal die provided to intercross and endless steel plate belt rotating and driven so that the synthetic resin is pressed onto a steel plate belt. CONSTITUTION:An endless steel plate belt 1 for cooling is strung between a pair of rollers 6 provided at the front and rear parts, and one roller 6 is connected to a motor 7, the steel plate belt 1 is rotated and driven by driving the motor 7. At the rear part of the steel plate belt 1 there are arranged extrusion forming metal dies 2 respectively opposing the inner surface and the outer surface of the steel plate belt 1. When the steel plate belt 1 is rotated and driven and the synthetic resin 3 is extruded through the extrusion metal dies 2, a synthetic resin film 4 is formed on the inner and outer surfaces of the steel plate belt 1, and taken up to a take-up shaft 8. When projected and depressed ridges 11 are provided on the steel plate belt 1, it is possible to form a synthetic resin film 4 having depressed and projected ridges in the flow direction.
JP12572879A 1979-09-29 1979-09-29 Manufacture of synthetic resin film Pending JPS5649220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12572879A JPS5649220A (en) 1979-09-29 1979-09-29 Manufacture of synthetic resin film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12572879A JPS5649220A (en) 1979-09-29 1979-09-29 Manufacture of synthetic resin film

Publications (1)

Publication Number Publication Date
JPS5649220A true JPS5649220A (en) 1981-05-02

Family

ID=14917302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12572879A Pending JPS5649220A (en) 1979-09-29 1979-09-29 Manufacture of synthetic resin film

Country Status (1)

Country Link
JP (1) JPS5649220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859010A (en) * 1981-10-05 1983-04-07 Shin Etsu Chem Co Ltd Method and apparatus for producing water-soluble embossed film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859010A (en) * 1981-10-05 1983-04-07 Shin Etsu Chem Co Ltd Method and apparatus for producing water-soluble embossed film

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