JPS54150477A - Manufacture of polymer film and its device - Google Patents

Manufacture of polymer film and its device

Info

Publication number
JPS54150477A
JPS54150477A JP5878078A JP5878078A JPS54150477A JP S54150477 A JPS54150477 A JP S54150477A JP 5878078 A JP5878078 A JP 5878078A JP 5878078 A JP5878078 A JP 5878078A JP S54150477 A JPS54150477 A JP S54150477A
Authority
JP
Japan
Prior art keywords
vacuum
sheet
polymer sheet
selvages
neck
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
JP5878078A
Other languages
Japanese (ja)
Inventor
Norio Takagi
Toshifumi Osawa
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP5878078A priority Critical patent/JPS54150477A/en
Publication of JPS54150477A publication Critical patent/JPS54150477A/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
    • B29C48/9175—Cooling of flat articles, e.g. using specially adapted supporting means by interposing a fluid layer between the supporting means and the flat article
    • 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
    • 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
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/916—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means using vacuum

Landscapes

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

Abstract

PURPOSE:To prevent the neck-in of a polymer sheet quenchable under vacuum at a high speed, by bringing a molten polymer sheet extruded through a die under different pressures on both sides into contact with a quenching roll coated with a liquid. CONSTITUTION:One side of the molten polymer sheet (or film)4 extruded from the die 1 on the quenching roll 2 is exposed to the atmosphere of the vacuum chamber 3 connected to the exhaust pipe 6, and brought into close contact with the roll 2. A liquid applied to at least zones corresponding to the selvages of the sheet 4 by the applicators 5 sharply reduces both the neck-in of the sheet 3 and the spaces between the selvages and the sidewalls of the vacuum chamber 4 which cannot be easily sealed in vacuum. As a result, a high degree of vacuum is possible, and the variation of film width and thickness unecenness can be reduced.
JP5878078A 1978-05-19 1978-05-19 Manufacture of polymer film and its device Pending JPS54150477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5878078A JPS54150477A (en) 1978-05-19 1978-05-19 Manufacture of polymer film and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5878078A JPS54150477A (en) 1978-05-19 1978-05-19 Manufacture of polymer film and its device

Publications (1)

Publication Number Publication Date
JPS54150477A true JPS54150477A (en) 1979-11-26

Family

ID=13094069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5878078A Pending JPS54150477A (en) 1978-05-19 1978-05-19 Manufacture of polymer film and its device

Country Status (1)

Country Link
JP (1) JPS54150477A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769190A (en) * 1986-04-25 1988-09-06 Diafoil Company, Limited Process for producing polyphenylene sulfide film
JPH047125U (en) * 1990-05-10 1992-01-22
FR2698580A1 (en) * 1992-12-01 1994-06-03 Albert Plastiques Suction-type applicator device - for applying extruded plastics film onto cooling roll
US5618568A (en) * 1995-02-01 1997-04-08 Extrusion Dies, Inc. Dual-chamber vacuum box
JP2002160241A (en) * 2000-11-28 2002-06-04 Toray Ind Inc Apparatus and method for manufacturing resin film
JP2006069184A (en) * 2003-09-24 2006-03-16 Fuji Photo Film Co Ltd Manufacturing method and manufacturing device of polymer film

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769190A (en) * 1986-04-25 1988-09-06 Diafoil Company, Limited Process for producing polyphenylene sulfide film
JPH047125U (en) * 1990-05-10 1992-01-22
FR2698580A1 (en) * 1992-12-01 1994-06-03 Albert Plastiques Suction-type applicator device - for applying extruded plastics film onto cooling roll
US5618568A (en) * 1995-02-01 1997-04-08 Extrusion Dies, Inc. Dual-chamber vacuum box
JP2002160241A (en) * 2000-11-28 2002-06-04 Toray Ind Inc Apparatus and method for manufacturing resin film
JP2006069184A (en) * 2003-09-24 2006-03-16 Fuji Photo Film Co Ltd Manufacturing method and manufacturing device of polymer film
JP4528070B2 (en) * 2003-09-24 2010-08-18 富士フイルム株式会社 Production method and production equipment for polymer film

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