JPS57176123A - Method and apparatus for manufacturing interlaminar hollow film - Google Patents

Method and apparatus for manufacturing interlaminar hollow film

Info

Publication number
JPS57176123A
JPS57176123A JP56060615A JP6061581A JPS57176123A JP S57176123 A JPS57176123 A JP S57176123A JP 56060615 A JP56060615 A JP 56060615A JP 6061581 A JP6061581 A JP 6061581A JP S57176123 A JPS57176123 A JP S57176123A
Authority
JP
Japan
Prior art keywords
pressure
film
cooling water
interlaminar
cylindrical
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
JP56060615A
Other languages
Japanese (ja)
Other versions
JPS622970B2 (en
Inventor
Zenichi Nakamura
Masayoshi Ono
Hidenori Nomura
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.)
Ube Exsymo Co Ltd
Original Assignee
Ube Nitto Kasei 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 Ube Nitto Kasei Co Ltd filed Critical Ube Nitto Kasei Co Ltd
Priority to JP56060615A priority Critical patent/JPS57176123A/en
Publication of JPS57176123A publication Critical patent/JPS57176123A/en
Publication of JPS622970B2 publication Critical patent/JPS622970B2/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
    • B29C48/88—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
    • B29C48/03—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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

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

Abstract

PURPOSE:To obtain an interlaminar hollow film excellent in light transmittance and heat retaining by equilibrating the pressure of gas supplied in a circular slit, the pressure of gas supplied into the inner side of an interlaminar cylindrical film and the pressure of the cooling water. CONSTITUTION:An inner and an outer circular cooling water tank 2, 3 are provided and the resin which is expanded and extruded cylindrically between the double layers is cooled therewith and, at the same time, the water depth contacting with inner and outer layers of the double cylindrical hollow film are equalized by adjusting the heights on positions of water depth adjusting rings 21 of said inner annular cooling water vessel and external annular cooling water vessel, and of the hollow cylindrical nuts 31; at the same time, the air pressure given under pressure from an air vent 11 formed between both circular slits 8, 9 of the die is balanced with said water pressure in order not to cause bending inward of the inner and outer layers of the film or buckling of the feet between both films. The pressure is balanced also with the gaseous pressure in the cylindrical film to be expanded.
JP56060615A 1981-04-23 1981-04-23 Method and apparatus for manufacturing interlaminar hollow film Granted JPS57176123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56060615A JPS57176123A (en) 1981-04-23 1981-04-23 Method and apparatus for manufacturing interlaminar hollow film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56060615A JPS57176123A (en) 1981-04-23 1981-04-23 Method and apparatus for manufacturing interlaminar hollow film

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP61053546A Division JPS61258723A (en) 1986-03-13 1986-03-13 Manufacture of two-layer hollow film

Publications (2)

Publication Number Publication Date
JPS57176123A true JPS57176123A (en) 1982-10-29
JPS622970B2 JPS622970B2 (en) 1987-01-22

Family

ID=13147350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56060615A Granted JPS57176123A (en) 1981-04-23 1981-04-23 Method and apparatus for manufacturing interlaminar hollow film

Country Status (1)

Country Link
JP (1) JPS57176123A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606431A (en) * 1983-06-27 1985-01-14 Idemitsu Petrochem Co Ltd Manufacture of cylindrical laminated film
JPS61258723A (en) * 1986-03-13 1986-11-17 Ube Nitto Kasei Kk Manufacture of two-layer hollow film
JPH01171842A (en) * 1987-12-26 1989-07-06 Yoji Araki Molding method for synthetic resin product
JP2003311809A (en) * 2002-04-26 2003-11-06 Showa Denko Kenzai Kk Pipe made of polyester and manufacturing method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62297666A (en) * 1986-06-17 1987-12-24 Matsushita Electric Ind Co Ltd Controller for warm-air heater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606431A (en) * 1983-06-27 1985-01-14 Idemitsu Petrochem Co Ltd Manufacture of cylindrical laminated film
JPH0261376B2 (en) * 1983-06-27 1990-12-19 Idemitsu Petrochemical Co
JPS61258723A (en) * 1986-03-13 1986-11-17 Ube Nitto Kasei Kk Manufacture of two-layer hollow film
JPS6245048B2 (en) * 1986-03-13 1987-09-24 Ube Nitsuto Kasei Kk
JPH01171842A (en) * 1987-12-26 1989-07-06 Yoji Araki Molding method for synthetic resin product
JP2003311809A (en) * 2002-04-26 2003-11-06 Showa Denko Kenzai Kk Pipe made of polyester and manufacturing method therefor

Also Published As

Publication number Publication date
JPS622970B2 (en) 1987-01-22

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