JPS5577530A - Method of producing film uniaxially stretched in widthwise direction - Google Patents

Method of producing film uniaxially stretched in widthwise direction

Info

Publication number
JPS5577530A
JPS5577530A JP15227978A JP15227978A JPS5577530A JP S5577530 A JPS5577530 A JP S5577530A JP 15227978 A JP15227978 A JP 15227978A JP 15227978 A JP15227978 A JP 15227978A JP S5577530 A JPS5577530 A JP S5577530A
Authority
JP
Japan
Prior art keywords
film
widthwise direction
edge portions
stretched
folded
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
JP15227978A
Other languages
Japanese (ja)
Other versions
JPS6228226B2 (en
Inventor
Masahide Yazawa
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.)
Polymer Processing Research Institute Ltd
Original Assignee
Polymer Processing Research Institute 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 Polymer Processing Research Institute Ltd filed Critical Polymer Processing Research Institute Ltd
Priority to JP15227978A priority Critical patent/JPS5577530A/en
Publication of JPS5577530A publication Critical patent/JPS5577530A/en
Publication of JPS6228226B2 publication Critical patent/JPS6228226B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

PURPOSE: To form a flat film uniaxially stretched in the widthwise direction, by clamping by a tenter the edge portions of a film, which has been wrinkled by contracting the same in the lengthwise direction to approximately one by square root of the stretching ratio, to allow the film to be spread out.
CONSTITUTION: A film 12 fed through pinch rolls 11, 11' is folded zigzag in a splittable state between the vanes or teeth of suspension vane wheels or gears 13, 14 with both edge portions of approximately 20W30mm in width, respectively, of the film left not folded. The film is then introduced onto belt pulleys provided at both end portions of the vane wheels or gears, where the edge portions of the film which have folds similar to those of the central portion thereof are clamped in a continuously-folded state between four canvas-containing rubber belts 16, 17, 16', 17', which consist of two vertical belts and two horizontal belts and which are moved by two pinch rolls 15, 15'. The film is then stretched uniaxially in the widthwise direction of a tenter so as to be spread out. The stretched film thus obtained is cut in the widthwise direction by a known means to obtain reticulate webs.
COPYRIGHT: (C)1980,JPO&Japio
JP15227978A 1978-12-08 1978-12-08 Method of producing film uniaxially stretched in widthwise direction Granted JPS5577530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15227978A JPS5577530A (en) 1978-12-08 1978-12-08 Method of producing film uniaxially stretched in widthwise direction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15227978A JPS5577530A (en) 1978-12-08 1978-12-08 Method of producing film uniaxially stretched in widthwise direction

Publications (2)

Publication Number Publication Date
JPS5577530A true JPS5577530A (en) 1980-06-11
JPS6228226B2 JPS6228226B2 (en) 1987-06-18

Family

ID=15537030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15227978A Granted JPS5577530A (en) 1978-12-08 1978-12-08 Method of producing film uniaxially stretched in widthwise direction

Country Status (1)

Country Link
JP (1) JPS5577530A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174821A (en) * 1984-09-20 1986-04-17 Mitsui Toatsu Chem Inc Manufacture of highly-oriented film in traverse direction
JPS62141168A (en) * 1985-12-09 1987-06-24 株式会社日本製鋼所 Apparatus for producing reticulated nonwoven fabric
DE3490605C2 (en) * 1983-12-23 1992-01-30 Mitsui Toatsu Chemicals, Inc., Tokio/Tokyo, Jp
US6916440B2 (en) 2001-05-31 2005-07-12 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US6936209B2 (en) 2002-11-27 2005-08-30 3M Innovative Properties Company Methods and devices for processing polymer films
US6949212B2 (en) 2002-11-27 2005-09-27 3M Innovative Properties Company Methods and devices for stretching polymer films
US7153122B2 (en) 2002-05-28 2006-12-26 3M Innovative Properties Company Apparatus for making transversely drawn films with substantially uniaxial character
JP2010521593A (en) * 2007-03-13 2010-06-24 ザ プロクター アンド ギャンブル カンパニー Method and apparatus for incremental stretching of a web
US10350818B2 (en) 2005-04-08 2019-07-16 3M Innovative Properties Company Heat setting optical films

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149764A (en) * 1974-05-21 1975-12-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149764A (en) * 1974-05-21 1975-12-01

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3490605C2 (en) * 1983-12-23 1992-01-30 Mitsui Toatsu Chemicals, Inc., Tokio/Tokyo, Jp
JPS6174821A (en) * 1984-09-20 1986-04-17 Mitsui Toatsu Chem Inc Manufacture of highly-oriented film in traverse direction
JPS62141168A (en) * 1985-12-09 1987-06-24 株式会社日本製鋼所 Apparatus for producing reticulated nonwoven fabric
US7229271B2 (en) 2001-05-31 2007-06-12 3M Innovative Properties Company Apparatus for making transversely drawn films with substantially uniaxial character
US6916440B2 (en) 2001-05-31 2005-07-12 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US6939499B2 (en) 2001-05-31 2005-09-06 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US10913199B2 (en) 2001-05-31 2021-02-09 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US9314961B2 (en) 2001-05-31 2016-04-19 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US7740470B2 (en) 2001-05-31 2010-06-22 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US7153122B2 (en) 2002-05-28 2006-12-26 3M Innovative Properties Company Apparatus for making transversely drawn films with substantially uniaxial character
US6936209B2 (en) 2002-11-27 2005-08-30 3M Innovative Properties Company Methods and devices for processing polymer films
US7316558B2 (en) 2002-11-27 2008-01-08 3M Innovative Properties Company Devices for stretching polymer films
US7153123B2 (en) 2002-11-27 2006-12-26 3M Innovative Properties Company Devices for conveying, stretching, and taking-away polymer films
US7104776B2 (en) 2002-11-27 2006-09-12 3M Innovative Properties Company Methods and devices for stretching polymer films
US6949212B2 (en) 2002-11-27 2005-09-27 3M Innovative Properties Company Methods and devices for stretching polymer films
US10350818B2 (en) 2005-04-08 2019-07-16 3M Innovative Properties Company Heat setting optical films
JP2010521593A (en) * 2007-03-13 2010-06-24 ザ プロクター アンド ギャンブル カンパニー Method and apparatus for incremental stretching of a web

Also Published As

Publication number Publication date
JPS6228226B2 (en) 1987-06-18

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