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Patent Searching and Data


Title:
WEB MANUFACTURING METHOD, CHARGE CONTROL METHOD, AND CHARGE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/088052
Kind Code:
A1
Abstract:
The purpose of the present invention is to manufacture a charge amount-controlled web without providing the web, such as an elongated polymer film, with an advance charge. Provided is a web manufacturing method comprising a transfer step of transferring a web, wherein a liquid is supplied to the interface of a transfer roll transferring the web and the web, and a charge amount on a surface of the web due to frictional charging between the transfer roll and the web is controlled. The liquid includes, for example, a liquid that produces, between the transfer roll and the web, a frictional charge of the opposite polarity from the charge polarity produced on the surface of the web due to frictional charge between the transfer roll and the web.

Inventors:
OKUNO Masato (Toray Industries Inc., 1190-13, Iguchi, Nasushiobara-sh, Tochigi 63, 〒3292763, JP)
WATANABE Mitsuru (Toray Industries Inc., 1190-13, Iguchi, Nasushiobara-sh, Tochigi 63, 〒3292763, JP)
Application Number:
JP2018/040198
Publication Date:
May 09, 2019
Filing Date:
October 29, 2018
Export Citation:
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Assignee:
TORAY INDUSTRIES, INC. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
International Classes:
H05F1/00; B05D1/02; B05D5/00; B05D7/00; B65H20/02; H05F1/02
Foreign References:
JPH08100359A1996-04-16
JPH09315411A1997-12-09
JP2017190538A2017-10-19
JPH01500842A1989-03-23
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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