Showa Denko K.k.

Shuhei Yoneda

Shigeru Yamaki

Provided are a transparent conducting film laminate to which a curl generated during a heating step and after the heating step can be controlled, and a method for processing the same. A transparent conducting film laminate comprises a transparent conducting filmand a carrier filmstacked thereon, wherein the transparent conducting filmcomprises a transparent resin film, transparent conducting layer, and an overcoat layerstacked in this order, the transparent resin filmhaving a thickness Tof 5 to 25 &#x3bc;m and being made of an amorphous cycloolefin-based resin, the carrier filmis releasably stacked on the other main face, the face opposite to the face having the transparent conducting layer, of the transparent resin filmwith an adhesive agent layertherebetween, and a protection filmhas a thickness Twhich is 5 times or more of the thickness Tof the transparent resin filmand is 150 &#x3bc;m or less, and is made of polyester having an aromatic ring in its molecular backbone.

Transparent conducting film laminate and processing method thereof

Provided is a transparent conducting film having a preferable optical property, a preferable electrical property, and further, a superior durability of folding. The transparent conducting film comprises a transparent substrate and a transparent conducting layer formed on at least one of main faces of the transparent substrate, wherein the transparent conducting layer contains a binder resin and a conducting fiber, a cut portion of the transparent conducting film has a straightness of 0.050 mm or less. Preferably, the transparent substrate is a resin film having an elongated resin film or cut out from an elongated film, and can be folded in with a folding axis in the direction perpendicular to the longitudinal direction of the elongated resin film.

Transparent conducting film

Provided is a transparent conducting film containing metal nanowires, the conducting film having a preferable optical property, electrical property, and having almost no in-plane resistance anisotropy. A method for producing a transparent conducting film provided with a conducting layer containing a metal nanowire and a binder resin, comprising steps of: preparing a coating liquid containing the metal nanowire and the binder resin, and coating the coating liquid on one main face of a transparent substrate, the coating step being performed by a bar-coater with a bar which has a bar surface constituted by a material having a friction coefficient of 0.05 to 0.45, wherein when the coating liquid is coated on one main face of the transparent substrate by the bar, a relative moving velocity (coating velocity) V (mm/sec) of the transparent substrate relative to the bar satisfies 2000&#x2265;V&#x2265;350, a groove formed on the bar has a pitch (P) and a depth (H) which satisfy a ratio P/H of 9 to 30, and on the bar surface, the groove is formed to be inclined in a way so that an angle between the longitudinal direction of the bar and a direction that the groove is formed is in a range of 60&#xb0; to 88&#xb0;.

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Tokyo, Japan

Shuhei Yoneda