CONDUCTIVE FILM, METHOD FOR PRODUCING THE SAME, AND TOUCH PANEL

Japanese Patent JP2013033729

A

To provide: a method for producing a conductive film that is low in haze, reduced in pimple defects and excellent in conductivity and transparency, by which metal nanowires can be suitably dispersed without causing aggregation during a coating operation; a conductive film produced by the method for producing a conductive film; and a touch panel including the conductive film.

The method for producing a conductive film includes: a cleaning step of performing ultrafiltration of a metal nanowire dispersion liquid using an ultrafiltration membrane to be cleaned, the metal nanowire dispersion liquid containing a dispersant and metal nanowires serving as metal particles and having an average minor axis length of 150 nm or less; and a coating step of applying a coating liquid for forming a conductive film on a support medium, the coating liquid containing the metal nanowire dispersion liquid after the cleaning step. In the method, a content ({mass of the dispersant/(mass of the total metal particles+mass of the dispersant)}×100) of the dispersant in the metal nanowire dispersion liquid after the cleaning step is 3.2 mass% or more.

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MIYAGISHIMA TADASHI
NAKAHIRA SHINICHI
NAOI KENJI

JP2012147192A

February 14, 2013

June 29, 2012

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FUJIFILM CORP

H01B13/00; B22F1/00; B22F9/00; B22F9/24; C09D5/02; C09D5/24; C09D7/45; C09D7/61; C09D139/06; G06F3/041; H01B5/14

Koichi Hirota
Yoshihiro Nagare
Naoko Matsuda

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