JPS5646729A - Internal portion stabilizing device for tubular film - Google Patents

Internal portion stabilizing device for tubular film

Info

Publication number
JPS5646729A
JPS5646729A JP12255579A JP12255579A JPS5646729A JP S5646729 A JPS5646729 A JP S5646729A JP 12255579 A JP12255579 A JP 12255579A JP 12255579 A JP12255579 A JP 12255579A JP S5646729 A JPS5646729 A JP S5646729A
Authority
JP
Japan
Prior art keywords
internal portion
stabilizing device
portion stabilizing
tubular film
film
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
JP12255579A
Other languages
Japanese (ja)
Other versions
JPS6327173B2 (en
Inventor
Sumio Goto
Hideaki Toda
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP12255579A priority Critical patent/JPS5646729A/en
Publication of JPS5646729A publication Critical patent/JPS5646729A/en
Publication of JPS6327173B2 publication Critical patent/JPS6327173B2/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
    • B29C48/90—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
    • B29C48/902—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 internally
    • 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
    • B29C48/90—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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending

Abstract

PURPOSE:To obtain the film having no unnuiform section or wrinkle and pertinent to a flatness by a method wherein a plurality of disc-shaped bodies arranged in parallel with a proper space are employed as an internal portion stabilizing device employed in case of forming the tubular film by an inflation method. CONSTITUTION:The internal portion stabilizing device is formed by arranging a plurality of disc-shaped bodies 6 concentrically with spaces through a fixing rod 3 and an annular film 2, molten and extruded from an annular die 1, is lifted under contacting it with said internal portion stabilizing device, subsequently, it is blown up to form a frost line 5, thus, a thermoplastic resin is formed by an inflation method.
JP12255579A 1979-09-26 1979-09-26 Internal portion stabilizing device for tubular film Granted JPS5646729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12255579A JPS5646729A (en) 1979-09-26 1979-09-26 Internal portion stabilizing device for tubular film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12255579A JPS5646729A (en) 1979-09-26 1979-09-26 Internal portion stabilizing device for tubular film

Publications (2)

Publication Number Publication Date
JPS5646729A true JPS5646729A (en) 1981-04-28
JPS6327173B2 JPS6327173B2 (en) 1988-06-02

Family

ID=14838776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12255579A Granted JPS5646729A (en) 1979-09-26 1979-09-26 Internal portion stabilizing device for tubular film

Country Status (1)

Country Link
JP (1) JPS5646729A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818226A (en) * 1981-07-28 1983-02-02 Showa Denko Kk Manufacture of tubular film and apparatus therefor
JPS5842431A (en) * 1981-09-09 1983-03-11 Showa Denko Kk Method and apparatus for changing diameter of tubular film
JPS59136224A (en) * 1983-01-25 1984-08-04 Sumitomo Chem Co Ltd Ultra-high impact resistant film and preparation thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818226A (en) * 1981-07-28 1983-02-02 Showa Denko Kk Manufacture of tubular film and apparatus therefor
JPH0248418B2 (en) * 1981-07-28 1990-10-25 Showa Denko Kk
JPS5842431A (en) * 1981-09-09 1983-03-11 Showa Denko Kk Method and apparatus for changing diameter of tubular film
JPS59136224A (en) * 1983-01-25 1984-08-04 Sumitomo Chem Co Ltd Ultra-high impact resistant film and preparation thereof
JPH0361574B2 (en) * 1983-01-25 1991-09-20 Sumitomo Chemical Co

Also Published As

Publication number Publication date
JPS6327173B2 (en) 1988-06-02

Similar Documents

Publication Publication Date Title
BE824020A (en) METHOD AND DEVICE FOR THE MANUFACTURING OF HOLLOW BODIES FROM THERMOPLASTIC SYNTHETIC MATERIAL AS WELL AS HOLLOW BODIES MANUFACTURED BY THIS PROCESS
AU540844B2 (en) Biaxial orientation
ATA467977A (en) THERMOPLASTIC MULTI-WALLED TUBE, AND METHOD FOR THE PRODUCTION THEREOF
ATA65776A (en) PLASTIC BOTTLE, ESPECIALLY FOR PRESSURIZED LIQUIDS
BE819958A (en) PILOT COMPOSITE SUPPORT AND FOUNDATION FOR MISCELLANEOUS WORKS AND ITS MANUFACTURING PROCESS
BE848783A (en) TIRE MOLDING MEMBRANE AND ITS MANUFACTURING PROCESS,
CA1034329A (en) Injection blow molding method and apparatus for producing double layered hollow article
BE858824A (en) PROCESS AND INSTALLATION FOR THE MANUFACTURING OF EXPANDED PLASTICS
IT8068020A0 (en) OF TIRES BY FORMING IN A PROCEDURE FOR THE MANUFACTURE OF THE MOLD AND TIRE OBTAINED WITH THE PROCEDURE
JPS5646729A (en) Internal portion stabilizing device for tubular film
DE69203476T2 (en) Blow molding process for the production of hollow bodies from thermoplastic material with improved gas tightness.
JPS53146764A (en) Film forming by inflation
BE823242A (en) MULTI-LAYER SHEET AND ITS MANUFACTURING PROCESS
BE822475A (en) PROCESS FOR THE MANUFACTURING OF THERMOPLASTIC POLYMER LAMINATES OF DIFFERENT DENSITIES BY COEXTRUSION
JPS5436387A (en) Synthetic resin molded article having multiple layer structure, and method and apparatus for munufacturing the same
FR2351769A1 (en) PROCESS AND DEVICE FOR THE MANUFACTURING OF ARTICLES OF ELONGATED SHAPE, SUCH AS THREADS, INCLUDING A CORE SHEATED WITH SYNTHETIC MATERIAL
JPS5279436A (en) Interior finish material and method of fabricating the same
ATA149477A (en) DEVICE FOR PRODUCING ORIENTED HOLLOW BODIES FROM THERMOPLASTIC PLASTIC
JPS57176123A (en) Method and apparatus for manufacturing interlaminar hollow film
SU835770A1 (en) Injection mould for making apertured articles from polymeric materials
JPS52133381A (en) Process for expansion molding by 22shaft extruder
JPS5350257A (en) Manufacture f polyester film
JPS53114869A (en) Manufacturing of pipe
BE819006R (en) METHOD AND DEVICE FOR MANUFACTURING BY BLOWING HOLLOW BODIES IN THERMOPLASTIC SYNTHETIC MATERIAL
JPS56111627A (en) Production of thermo-shrinkable matt film