JPS5542802A - Die for inflation film of thermoplastic resin - Google Patents

Die for inflation film of thermoplastic resin

Info

Publication number
JPS5542802A
JPS5542802A JP11507478A JP11507478A JPS5542802A JP S5542802 A JPS5542802 A JP S5542802A JP 11507478 A JP11507478 A JP 11507478A JP 11507478 A JP11507478 A JP 11507478A JP S5542802 A JPS5542802 A JP S5542802A
Authority
JP
Japan
Prior art keywords
coolant
passage
mandrel
inflation film
thru
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
JP11507478A
Other languages
Japanese (ja)
Other versions
JPS6125531B2 (en
Inventor
Wataru Kusakawa
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.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical Co 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP11507478A priority Critical patent/JPS5542802A/en
Publication of JPS5542802A publication Critical patent/JPS5542802A/en
Publication of JPS6125531B2 publication Critical patent/JPS6125531B2/ja
Granted 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Landscapes

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

Abstract

PURPOSE:To obtain a die capable of giving uniform coarseness on the surface of film by establishing heat-insulating layer between exit and inlet ports of coolant and spiral mandrel and thereby improving the heat insulating efficiency. CONSTITUTION:Inflation film is available by flowing out the thermoplastic synthetic resin from the passage 18. At this procedure, mandrel A is locally cooled by flowing coolant from heat insulating passage 16, leading it to the coolant gathering passage 13, then to the coolant sump 14 through distribution hole 11, and flow it thru the spiral passage 15 for cooling purpose. After cooling the mandrel, the coolant is led to the other coolant sump 14, and is discharged from exhaust passage 17 thru the gathering passage 13. By this constitution, only the mandrel A is locally cooled by giving efficiently uniform temp. to the entire body.
JP11507478A 1978-09-21 1978-09-21 Die for inflation film of thermoplastic resin Granted JPS5542802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11507478A JPS5542802A (en) 1978-09-21 1978-09-21 Die for inflation film of thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11507478A JPS5542802A (en) 1978-09-21 1978-09-21 Die for inflation film of thermoplastic resin

Publications (2)

Publication Number Publication Date
JPS5542802A true JPS5542802A (en) 1980-03-26
JPS6125531B2 JPS6125531B2 (en) 1986-06-16

Family

ID=14653523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11507478A Granted JPS5542802A (en) 1978-09-21 1978-09-21 Die for inflation film of thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS5542802A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220726A (en) * 1984-04-18 1985-11-05 Kawasumi Lab Inc Method and apparatus for processing internal surface of synthetic resin tube
EP0210108A2 (en) * 1985-07-19 1987-01-28 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof
JPH01202237A (en) * 1988-02-08 1989-08-15 Nakazato:Kk Preservation method of frozen food dough requiring fermentation
FR2637533A1 (en) * 1988-10-10 1990-04-13 Solvay PROCESS FOR PRODUCING, BY BLOWN EXTRUSION, A RESIN SHEATH BASED ON VINYL CHLORIDE HAVING AT LEAST ONE SIDE HAVING A MATTE APPEARANCE
US5248472A (en) * 1990-03-09 1993-09-28 Terumo Kabushiki Kaisha Method of and apparatus for manufacturing tubular thermoplastic resin film having a rough inner surface

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220726A (en) * 1984-04-18 1985-11-05 Kawasumi Lab Inc Method and apparatus for processing internal surface of synthetic resin tube
EP0210108A2 (en) * 1985-07-19 1987-01-28 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof
EP0210108A3 (en) * 1985-07-19 1988-04-06 Terumo Kabushiki Kaisha Trading As Terumo Corporation Method for production of cylindrical thermoplastic resin film having rough inner surface and apparatus thereof
JPH01202237A (en) * 1988-02-08 1989-08-15 Nakazato:Kk Preservation method of frozen food dough requiring fermentation
FR2637533A1 (en) * 1988-10-10 1990-04-13 Solvay PROCESS FOR PRODUCING, BY BLOWN EXTRUSION, A RESIN SHEATH BASED ON VINYL CHLORIDE HAVING AT LEAST ONE SIDE HAVING A MATTE APPEARANCE
EP0364021A1 (en) * 1988-10-10 1990-04-18 Solvay Process for the extrusion blow-moulding production of a PVC-based tubular film having at least one mat surface
US4997616A (en) * 1988-10-10 1991-03-05 Solvay & Cie Process for producing, by blown film extrusion, a sleeve of vinyl chloride-based resin, at least one face of which is matte in appearance
US5248472A (en) * 1990-03-09 1993-09-28 Terumo Kabushiki Kaisha Method of and apparatus for manufacturing tubular thermoplastic resin film having a rough inner surface

Also Published As

Publication number Publication date
JPS6125531B2 (en) 1986-06-16

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