JPH0536223B2 - - Google Patents

Info

Publication number
JPH0536223B2
JPH0536223B2 JP59109669A JP10966984A JPH0536223B2 JP H0536223 B2 JPH0536223 B2 JP H0536223B2 JP 59109669 A JP59109669 A JP 59109669A JP 10966984 A JP10966984 A JP 10966984A JP H0536223 B2 JPH0536223 B2 JP H0536223B2
Authority
JP
Japan
Prior art keywords
die
film
density
tubular film
height
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.)
Expired - Fee Related
Application number
JP59109669A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60255412A (ja
Inventor
Takumi Fujisaki
Yoshasu Fujiwara
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP59109669A priority Critical patent/JPS60255412A/ja
Publication of JPS60255412A publication Critical patent/JPS60255412A/ja
Publication of JPH0536223B2 publication Critical patent/JPH0536223B2/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
    • B29C48/885—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
    • B29C48/03—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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP59109669A 1984-05-31 1984-05-31 熱可塑性樹脂製内面筋入チユ−ブラ−フイルム、その製造方法及びサ−キユラ−ダイ Granted JPS60255412A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59109669A JPS60255412A (ja) 1984-05-31 1984-05-31 熱可塑性樹脂製内面筋入チユ−ブラ−フイルム、その製造方法及びサ−キユラ−ダイ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59109669A JPS60255412A (ja) 1984-05-31 1984-05-31 熱可塑性樹脂製内面筋入チユ−ブラ−フイルム、その製造方法及びサ−キユラ−ダイ

Publications (2)

Publication Number Publication Date
JPS60255412A JPS60255412A (ja) 1985-12-17
JPH0536223B2 true JPH0536223B2 (enrdf_load_stackoverflow) 1993-05-28

Family

ID=14516163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59109669A Granted JPS60255412A (ja) 1984-05-31 1984-05-31 熱可塑性樹脂製内面筋入チユ−ブラ−フイルム、その製造方法及びサ−キユラ−ダイ

Country Status (1)

Country Link
JP (1) JPS60255412A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319744A (ja) * 1986-07-11 1988-01-27 Sony Corp 気体イオン源方式のイオンビ−ム発生装置

Also Published As

Publication number Publication date
JPS60255412A (ja) 1985-12-17

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees