JPS54117562A - Production of polyamide film by blown-film extrusion - Google Patents

Production of polyamide film by blown-film extrusion

Info

Publication number
JPS54117562A
JPS54117562A JP2361678A JP2361678A JPS54117562A JP S54117562 A JPS54117562 A JP S54117562A JP 2361678 A JP2361678 A JP 2361678A JP 2361678 A JP2361678 A JP 2361678A JP S54117562 A JPS54117562 A JP S54117562A
Authority
JP
Japan
Prior art keywords
polyamide
film
blown
extrusion
production
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
JP2361678A
Other languages
Japanese (ja)
Other versions
JPS6049085B2 (en
Inventor
Yoshihiro Kan
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.)
Unitika Ltd
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP53023616A priority Critical patent/JPS6049085B2/en
Publication of JPS54117562A publication Critical patent/JPS54117562A/en
Publication of JPS6049085B2 publication Critical patent/JPS6049085B2/en
Expired 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/9258—Velocity
    • 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
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a polyamide film according to blown-film extrusion cheaply, by using a mass-produced inexpensive low-viscosity polyamide for yarn-making instead of an expensive high-viscosity polyamide. CONSTITUTION:A polyamide having a relative viscosity of 3.00-3.50, preferably a polyamide for producing a yarn of industrial material, is blended with not less than 0.05 wt.% of a plasticizer, e.g., a sulfonamide compound, etc. and/or a lubricant, e.g., a higher fatty acid derivative, etc., and the blend thus obtained is molded at 220-230 deg.C in a tubular form upwards by blown-film extrusion to give an undrawn film with thickness not more than 100mu.
JP53023616A 1978-03-03 1978-03-03 Manufacturing method of polyamide film by inflation method Expired JPS6049085B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53023616A JPS6049085B2 (en) 1978-03-03 1978-03-03 Manufacturing method of polyamide film by inflation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53023616A JPS6049085B2 (en) 1978-03-03 1978-03-03 Manufacturing method of polyamide film by inflation method

Publications (2)

Publication Number Publication Date
JPS54117562A true JPS54117562A (en) 1979-09-12
JPS6049085B2 JPS6049085B2 (en) 1985-10-31

Family

ID=12115531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53023616A Expired JPS6049085B2 (en) 1978-03-03 1978-03-03 Manufacturing method of polyamide film by inflation method

Country Status (1)

Country Link
JP (1) JPS6049085B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990346A (en) * 1972-12-29 1974-08-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990346A (en) * 1972-12-29 1974-08-29

Also Published As

Publication number Publication date
JPS6049085B2 (en) 1985-10-31

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