Nitto-denko Corporation

Hitoshi Kitagishi

Minoru Miyatake

Satoru Kunikata

Takashi Shimizu

Shusaku Goto

Takeharu Kitagawa

Takashi Kamijo

Tomohiro Mori

Nobuyuki Haida

The present invention provides a method of manufacturing a polarizing plate having sufficient heat resistance, without deteriorating the dye-affinity and the like of the polarizing film and without the necessity of transferring or detaching the polarizing film. Provided is a method of manufacturing a polarizing plate () that includes a polyester resin base () and a polarizing film including a polyvinyl alcohol resin laminated on the polyester resin base. The method includes the steps of: stretching a laminate that includes a polyvinyl alcohol resin layer () laminated on the polyester resin base (); dyeing the polyvinyl alcohol resin layer (); and crystallizing the polyester resin base (). The crystallization step is performed after the dyeing step.

Method of manufacturing polarizing plate

A resin film according to an embodiment of the present invention includes: a substrate film; and an antistatic layer formed on one side of the substrate film and including a binder resin and a conductive material. The binder resin includes a polyurethane-based resin; the antistatic layer has an arithmetic average surface roughness Ra of 10 nm or more; and the conductive material includes a conductive polymer.

Resin film and method of producing resin film

A laminate according to an embodiment of the present invention includes: a resin substrate; a polyvinyl alcohol-based resin layer formed on one side of the resin substrate; and an antistatic layer formed on another side of the resin substrate and comprising a binder resin and a conductive material. The binder resin includes a polyurethane-based resin; the antistatic layer has an arithmetic average surface roughness Ra of 10 nm or more; and the conductive material includes a conductive polymer.

Laminate and method of producing laminate

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Ibaraki, Japan

Hitoshi Kitagishi