JPS55105533A - Cooling method for polymer film - Google Patents

Cooling method for polymer film

Info

Publication number
JPS55105533A
JPS55105533A JP1222679A JP1222679A JPS55105533A JP S55105533 A JPS55105533 A JP S55105533A JP 1222679 A JP1222679 A JP 1222679A JP 1222679 A JP1222679 A JP 1222679A JP S55105533 A JPS55105533 A JP S55105533A
Authority
JP
Japan
Prior art keywords
film
contact
polymer film
cooled
drum
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
JP1222679A
Other languages
Japanese (ja)
Inventor
Takahiko Kazama
Katsumasa Nakamura
Saburo Tanaka
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP1222679A priority Critical patent/JPS55105533A/en
Publication of JPS55105533A publication Critical patent/JPS55105533A/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
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/9165—Electrostatic pinning
    • 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

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 reduce the occurrence of an abnormal thickness at a boundary region between the portion where the adhesive effect affected by the means described hereunder and where said effect is not exerted, by bringing a hydrated cloth into contact with an area of a polymer film having an increased adhesive strength. CONSTITUTION:A molten polymer film 3 continuously extruded from a mouth piece 1 is brought into contact with a drum 2. While the said film, resultantly, is drawn to the left, it is cooled for hardening to form a cooled film. In the process where the film is cooled, an adhesive force is yielded between the ends of the polymer film 3 and the cooling drum 2 by the effect of a static induction being applied to the ends when the ends pass through between electrodes 4, whereto a high voltage of a high voltage generating source 5 is impressed, and the cooling drum 2. Within the area where the adhesive force is yielded, hydrated cloth 7 is brought into contact with the film surface from the side not in contact with the drum 2.
JP1222679A 1979-02-07 1979-02-07 Cooling method for polymer film Pending JPS55105533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1222679A JPS55105533A (en) 1979-02-07 1979-02-07 Cooling method for polymer film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1222679A JPS55105533A (en) 1979-02-07 1979-02-07 Cooling method for polymer film

Publications (1)

Publication Number Publication Date
JPS55105533A true JPS55105533A (en) 1980-08-13

Family

ID=11799451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1222679A Pending JPS55105533A (en) 1979-02-07 1979-02-07 Cooling method for polymer film

Country Status (1)

Country Link
JP (1) JPS55105533A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825927A (en) * 1981-08-10 1983-02-16 Mitsubishi Heavy Ind Ltd Sheet forming method
JPS6183017A (en) * 1984-10-01 1986-04-26 Mitsui Toatsu Chem Inc Manufacture of thermoplastic resin film
JPS61106222A (en) * 1984-10-30 1986-05-24 Mitsui Toatsu Chem Inc Manufacture device for synthetic resin film
US4769190A (en) * 1986-04-25 1988-09-06 Diafoil Company, Limited Process for producing polyphenylene sulfide film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825927A (en) * 1981-08-10 1983-02-16 Mitsubishi Heavy Ind Ltd Sheet forming method
JPS6183017A (en) * 1984-10-01 1986-04-26 Mitsui Toatsu Chem Inc Manufacture of thermoplastic resin film
JPS61106222A (en) * 1984-10-30 1986-05-24 Mitsui Toatsu Chem Inc Manufacture device for synthetic resin film
JPH0146305B2 (en) * 1984-10-30 1989-10-06 Mitsui Toatsu Chemicals
US4769190A (en) * 1986-04-25 1988-09-06 Diafoil Company, Limited Process for producing polyphenylene sulfide film

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