FILM ROLL BODY AND METHOD OF MANUFACTURING FILM ROLL BODY

Title:

FILM ROLL BODY AND METHOD OF MANUFACTURING FILM ROLL BODY

Document Type and Number:

WIPO Patent Application WO/2002/028755

Kind Code:

A1

Abstract:

A film roll body capable of simultaneously realizing the strong prevention of displacement and air vent from an end part and eliminating a displacement, a warpage, a deformation, and a misalignment of end faces by providing a charging treated part having a maximum width-to-minimum width difference of within 10 mm at least on a lateral part of a film wound in a roll shape; a method of manufacturing a film roll body, comprising the step of applying a charging treatment to a film intermittently at specified intervals, wherein the ratio of the time for charging treatment is set at 10 to 80% within one cycle; whereby, because the film roll body has a strong adhesiveness and is not deviated at the time of evacuation by an evaporator, the film roll body is particularly excellent for use as an original roll for evaporation and can be used suitably for a wide range of applications such as magnetic tape, packing materials, and capacitors.

Inventors:

MORIOKA SATOKO (JP)
ICHINOMIYA TAKASHI (JP)

Application Number:

PCT/JP2001/008099

Publication Date:

April 11, 2002

Filing Date:

September 18, 2001

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)
MORIOKA SATOKO (JP)
ICHINOMIYA TAKASHI (JP)

International Classes:

B29C59/10; B29C71/00; B65H18/00; B65H18/28; G03C3/00; (IPC1-7): B65H18/16; B29C59/00

Foreign References:

JPS6374850A	1988-04-05
JPH10309749A	1998-11-24
US5501905A	1996-03-26
US5436041A	1995-07-25
US5914079A	1999-06-22
JPH10175756A	1998-06-30
JPH08108474A	1996-04-30

Other References: