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Title:
METHOD FOR TAKING UP LONG FILM AND TAKE-UP DEVICE FOR LONG FILM
Document Type and Number:
Japanese Patent JP2014051396
Kind Code:
A
Abstract:

To provide a take-up method and a take-up device capable of sufficiently inhibiting a winding mark from being transferred to an adhesive layer in the case of taking up a long rugged film like a roll, and sufficiently inhibiting the occurrence of a void due to entrainment of air in sticking the adhesive layer to an adherend.

A method for taking up a long rugged film like a roll includes: a take-up process of taking up the long film like a roll; a measuring process of measuring the roll diameter of the film taken-up like a roll and the take-up tension; and a control process of controlling to lower the take-up tension with an increase in roll diameter of the taken up film measured in the measuring process and also with respect to an initial value of the take-up tension. In the control process, the initial value of the take-up tension is 10-20 N, and the take-up tension when the roll diameter of the taken-up film reaches 200 mm is controlled to 8-15 N.


Inventors:
FURUYA SUZUSHI
KOMORIDA KOJI
Application Number:
JP2013235605A
Publication Date:
March 20, 2014
Filing Date:
November 14, 2013
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
B65H23/198; B65H18/08
Domestic Patent References:
JPH1059594A1998-03-03
JP2007002173A2007-01-11
JP2004035836A2004-02-05
JP2007288170A2007-11-01
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu