发明名称 偏光性積層フィルムの製造方法及び偏光板の製造方法
摘要 This method of manufacturing a polarizing laminate film involves a step for obtaining a laminate film by coating a substrate film with a coating liquid containing a polyvinyl alcohol resin, a step for obtaining a stretched film by stretching the laminate film, and a step for dyeing the polyvinyl alcohol resin layer of the stretched film with a dichroic dye, wherein the stretching step involves a first stretching step in which stretching is performed such that the first width remaining ratio R1 is 60% or greater and less than 100%, and a second stretching step in which the free end is uniaxially stretched such that the second width remaining ratio R2 is less than the first width remaining ratio R1; this method of manufacturing polarizing plate uses the polarizing laminate film obtained by the aforementioned method.
申请公布号 JP5688427(B2) 申请公布日期 2015.03.25
申请号 JP20130073852 申请日期 2013.03.29
申请人 住友化学株式会社 发明人 九内 雄一朗
分类号 G02B5/30;B29C55/02;B32B7/02;B32B27/30;G02F1/1335 主分类号 G02B5/30
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