JPS5521258A - Producing method of polyamide polymer stretched film - Google Patents

Producing method of polyamide polymer stretched film

Info

Publication number
JPS5521258A
JPS5521258A JP9476778A JP9476778A JPS5521258A JP S5521258 A JPS5521258 A JP S5521258A JP 9476778 A JP9476778 A JP 9476778A JP 9476778 A JP9476778 A JP 9476778A JP S5521258 A JPS5521258 A JP S5521258A
Authority
JP
Japan
Prior art keywords
sheet
corona discharge
stretched film
producing method
polyamide polymer
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
JP9476778A
Other languages
Japanese (ja)
Other versions
JPS5923270B2 (en
Inventor
Yasuomi Yoshino
Fumio Nishimura
Haruhiko Watanabe
Masahiro Kobayashi
Kunio Takeuchi
Haruo Okudaira
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP9476778A priority Critical patent/JPS5923270B2/en
Publication of JPS5521258A publication Critical patent/JPS5521258A/en
Publication of JPS5923270B2 publication Critical patent/JPS5923270B2/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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To produce the mark film having high transparent and uniformity of thickness by stretching the polyamide thermoplastic sheet at the soft state, after the streamer corona discharge was applied. CONSTITUTION:The polyamide thermoplastic film containing 0.01-10wt% of the inorganic particle smoothing agent (the average particle diameter 0.01-10mu) is pushed out from the die 1 as the softened sheet, and the streamer corona discharge 8 is applied between the sheet 2 and the electrode 7 with DC high voltage from the source 6. After the sheet is colled down in the temperature range of the max. temperature of crystalization -20 deg.C and the dew point, with the cooling drum 3. The unstretched sheet 5 is stripped off by the stripping drum 4 and then is stretched at least more than 1.1 times in the slow and high speed rollor groups 9, 10.
JP9476778A 1978-08-02 1978-08-02 Manufacturing method of polyamide polymer stretched film Expired JPS5923270B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9476778A JPS5923270B2 (en) 1978-08-02 1978-08-02 Manufacturing method of polyamide polymer stretched film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9476778A JPS5923270B2 (en) 1978-08-02 1978-08-02 Manufacturing method of polyamide polymer stretched film

Publications (2)

Publication Number Publication Date
JPS5521258A true JPS5521258A (en) 1980-02-15
JPS5923270B2 JPS5923270B2 (en) 1984-05-31

Family

ID=14119241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9476778A Expired JPS5923270B2 (en) 1978-08-02 1978-08-02 Manufacturing method of polyamide polymer stretched film

Country Status (1)

Country Link
JP (1) JPS5923270B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929128A (en) * 1982-08-09 1984-02-16 Kohjin Co Ltd Biaxially oriented film of nylon 12 and preparation thereof
US4548770A (en) * 1983-11-17 1985-10-22 Crown Zellerbach Corporation Subjecting film to corona discharge prior to compression rolling
JPS6160059U (en) * 1985-09-06 1986-04-23
US5000889A (en) * 1984-05-22 1991-03-19 Toyo Boseki Kabushiki Kaisha Process for preparing polyamide film
JPH04103335A (en) * 1990-08-23 1992-04-06 Toyobo Co Ltd Biaxially oriented polyamide film and its manufacture
CN102765196A (en) * 2011-05-03 2012-11-07 莱芬豪舍机器制造公司 Method and device for producing a film with markings

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997600A (en) * 1988-05-24 1991-03-05 Mitsubishi Monsanto Chemical Company, Ltd. Process for preparation of thermoplastic resin sheets
JP5465912B2 (en) * 2009-04-08 2014-04-09 ユニチカ株式会社 Film production method
CN110944821B (en) 2017-12-14 2022-11-15 硬化铬工业股份有限公司 Cooling roll and method for producing thermoplastic resin sheet using same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929128A (en) * 1982-08-09 1984-02-16 Kohjin Co Ltd Biaxially oriented film of nylon 12 and preparation thereof
JPH0459131B2 (en) * 1982-08-09 1992-09-21 Kojin Kk
US4548770A (en) * 1983-11-17 1985-10-22 Crown Zellerbach Corporation Subjecting film to corona discharge prior to compression rolling
US5000889A (en) * 1984-05-22 1991-03-19 Toyo Boseki Kabushiki Kaisha Process for preparing polyamide film
JPS6160059U (en) * 1985-09-06 1986-04-23
JPH04103335A (en) * 1990-08-23 1992-04-06 Toyobo Co Ltd Biaxially oriented polyamide film and its manufacture
CN102765196A (en) * 2011-05-03 2012-11-07 莱芬豪舍机器制造公司 Method and device for producing a film with markings

Also Published As

Publication number Publication date
JPS5923270B2 (en) 1984-05-31

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