JPS5637122A - Method and apparatus for production of stretched tubular film - Google Patents

Method and apparatus for production of stretched tubular film

Info

Publication number
JPS5637122A
JPS5637122A JP11312679A JP11312679A JPS5637122A JP S5637122 A JPS5637122 A JP S5637122A JP 11312679 A JP11312679 A JP 11312679A JP 11312679 A JP11312679 A JP 11312679A JP S5637122 A JPS5637122 A JP S5637122A
Authority
JP
Japan
Prior art keywords
cool
controlled
tube body
tubular film
passed
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
JP11312679A
Other languages
Japanese (ja)
Inventor
Yoshihiro Wada
Hideyuki Numamoto
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.)
Gunze Ltd
Original Assignee
Gunze 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 Gunze Ltd filed Critical Gunze Ltd
Priority to JP11312679A priority Critical patent/JPS5637122A/en
Publication of JPS5637122A publication Critical patent/JPS5637122A/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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • 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
    • 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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular 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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/906—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using roller calibration
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To enable a higher workability and an even stretching with a simple facility by passing a thermoplastic film through a width-controlled roller ring body via a cool-controlled tube body immediately after extrusion. CONSTITUTION:A thermoplastic tubular film continuously extruded and molded from extrusion dies 5 is passed through the first cool-controlled tube body 3 arranged at an outlet of the extrusion dies to cool and passed through a width-controlled rollring body 4 provided following the tube body 3 to cool successively. The first cool-controlled tube body 2 has an air chamber 10 for filling it with a cooling pressure fluid such as air inside and a slit 7 for injecting the cooling pressure fluid over the entire inner surface. The length of the afore-mentioned tube bodies 2 and 3 is preferably less than 70cm in total, more preferably less than 50cm.
JP11312679A 1979-09-01 1979-09-01 Method and apparatus for production of stretched tubular film Pending JPS5637122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11312679A JPS5637122A (en) 1979-09-01 1979-09-01 Method and apparatus for production of stretched tubular film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11312679A JPS5637122A (en) 1979-09-01 1979-09-01 Method and apparatus for production of stretched tubular film

Publications (1)

Publication Number Publication Date
JPS5637122A true JPS5637122A (en) 1981-04-10

Family

ID=14604185

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11312679A Pending JPS5637122A (en) 1979-09-01 1979-09-01 Method and apparatus for production of stretched tubular film

Country Status (1)

Country Link
JP (1) JPS5637122A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548085A1 (en) * 1983-06-29 1985-01-04 Charbonnages Ste Chimique Cooling device and manufacturing process for plastic film obtained by blowing tubing
JPS6048323A (en) * 1983-08-29 1985-03-16 Asahi Chem Ind Co Ltd Cooling ring for manufacture of thermoplastic resin tubular film
US4624823A (en) * 1983-06-29 1986-11-25 Societe Chimique Des Charbonnages S.A. Blown tubing method and apparatus
US4732727A (en) * 1986-04-03 1988-03-22 The Dow Chemical Company Method and apparatus for producing mesh film
JP2013159747A (en) * 2012-02-08 2013-08-19 Toray Ind Inc Polylactic acid-based film
CN105965854A (en) * 2016-05-31 2016-09-28 宁波方力科技股份有限公司 Vacuum setting machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548085A1 (en) * 1983-06-29 1985-01-04 Charbonnages Ste Chimique Cooling device and manufacturing process for plastic film obtained by blowing tubing
US4624823A (en) * 1983-06-29 1986-11-25 Societe Chimique Des Charbonnages S.A. Blown tubing method and apparatus
JPS6048323A (en) * 1983-08-29 1985-03-16 Asahi Chem Ind Co Ltd Cooling ring for manufacture of thermoplastic resin tubular film
US4732727A (en) * 1986-04-03 1988-03-22 The Dow Chemical Company Method and apparatus for producing mesh film
JP2013159747A (en) * 2012-02-08 2013-08-19 Toray Ind Inc Polylactic acid-based film
CN105965854A (en) * 2016-05-31 2016-09-28 宁波方力科技股份有限公司 Vacuum setting machine

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