发明名称 METHOD FOR PRODUCING POLARIZING PLATE
摘要 PROBLEM TO BE SOLVED: To provide a method for manufacturing a polarizing plate, wherein a cellulose acetate-based resin film is bonded to one surface of a polyvinyl alcohol-based polarizing film and a polyethylene terephthalate film is bonded to the other surface, while exhibiting sufficient adhesive strength between the polarizing film and the films disposed on both surfaces thereof with less recess defects.SOLUTION: A cellulose acetate-based resin film 2 is bonded to one surface of a polarizing film 1 made of a polyvinyl alcohol-based resin via an aqueous adhesive, and a polyethylene terephthalate film 3 is bonded to the other surface via the aqueous adhesive. In producing a polarizing plate 10, the polyethylene terephthalate film 3 has an easily adhesive layer on a surface thereof to be bonded to the polarizing film 1, and a moisture content of the polarizing film 1 immediately before bonding is 8 to 12 wt.%, and the polarizing film 1 is passed through a drying furnace 7 while applying tension in a flow direction in a state where these films are bonded to both surfaces of the polarizing film 1 respectively.
申请公布号 JP2011215263(A) 申请公布日期 2011.10.27
申请号 JP20100081668 申请日期 2010.03.31
申请人 SUMITOMO CHEMICAL CO LTD 发明人 MATSUHISA HIDEKI;YAKABE KIMIHIKO
分类号 G02B5/30;G02F1/1335 主分类号 G02B5/30
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