METHOD OF PRODUCING POLARIZING FILM

To provide a method of producing a polarizing film excellent in humidification reliability and excellent in appearance obtained by suppressing interference unevenness.SOLUTION: A method of producing a polarizing film including at least a polarizer includes: a coating step of coating a curable aqueou...

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1. Verfasser:	SUGANO AKIRA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PHYSICS POLISHES USE OF MATERIALS AS ADHESIVES
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Zusammenfassung:	To provide a method of producing a polarizing film excellent in humidification reliability and excellent in appearance obtained by suppressing interference unevenness.SOLUTION: A method of producing a polarizing film including at least a polarizer includes: a coating step of coating a curable aqueous dispersion composition on at least one surface of the polarizer; and a drying step of drying the curable aqueous dispersion composition so as to form a resin layer. In the polarizing film, the curable aqueous dispersion composition contains water as a solvent and a polymerizable compound A. The curable aqueous dispersion composition preferably contains, as the polymerizable compound A, a polymerizable compound which has viscosity at 25°C is 100mPa.s or more or which is a solid.SELECTED DRAWING: Figure 1 【課題】加湿信頼性に優れ、干渉ムラを抑制することで、外観性に優れた偏光フィルムの製造方法を提供すること。【解決手段】少なくとも偏光子を備える偏光フィルムの製造方法であって、偏光子の少なくとも一方の面に硬化性水分散組成物を塗工する塗工工程と、硬化性水分散組成物を乾燥させることにより、樹脂層を形成する乾燥工程とを備え、硬化性水分散組成物が、溶媒としての水と、重合性化合物Ａとを含有する偏光フィルムの製造方法。硬化性水分散組成物は、重合性化合物Ａとして、２５℃で粘度が１００ｍＰａ・ｓ以上または固体である重合性化合物を含有するものであることが好ましい。【選択図】図１