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
English (en)
Japanese (ja)
Other versions
JPS6327173B2 (enrdf_load_stackoverflow
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/ja
Publication of JPS5646729A publication Critical patent/JPS5646729A/ja
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

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)
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 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818226A (ja) * 1981-07-28 1983-02-02 Showa Denko Kk 管状フイルムの製造方法および製造装置
JPS5842431A (ja) * 1981-09-09 1983-03-11 Showa Denko Kk 管状フイルムの口径の変更方法及び装置
JPS59136224A (ja) * 1983-01-25 1984-08-04 Sumitomo Chem Co Ltd 超高耐衝撃性フィルムの製造法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818226A (ja) * 1981-07-28 1983-02-02 Showa Denko Kk 管状フイルムの製造方法および製造装置
JPS5842431A (ja) * 1981-09-09 1983-03-11 Showa Denko Kk 管状フイルムの口径の変更方法及び装置
JPS59136224A (ja) * 1983-01-25 1984-08-04 Sumitomo Chem Co Ltd 超高耐衝撃性フィルムの製造法

Also Published As

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

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