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    • 6. 发明申请
    • DEVICE FOR PRODUCING POLARIZING FILM AND METHOD OF PRODUCING THE SAME (As Amended)
    • 用于制造极化膜的装置及其制造方法(如修改)
    • US20130170032A1
    • 2013-07-04
    • US13702534
    • 2011-06-02
    • Ho Kyung LeeChang Song LeeKyu Hwang LeeEung Jin JangJoong Suk Nah
    • Ho Kyung LeeChang Song LeeKyu Hwang LeeEung Jin JangJoong Suk Nah
    • G02B5/30
    • G02B5/30B29C55/026B29C55/04B29D7/01B29K2029/04B29K2995/0034G02B5/3033
    • Disclosed herein is an apparatus for preparation of a film exhibiting polarizing properties (‘polarizing film’) by dyeing a substrate film with iodine and then orienting the same through a continuous process, and the foregoing apparatus includes, a first bath equipped with a thermometer to measure a temperature of the first bath (‘first bath thermometer’), in which a polyvinylalcohol (PVA) film as a substrate film is washed; a second bath equipped with a thermometer to measure a temperature of the second bath (‘second bath thermometer’) and a densitometer to measure a concentration of the second bath (‘second bath densitometer’), in which the washed PVA film is dipped in an iodine solution and dyed therein; a third bath in which the iodine-dyed PVA film is stretched by a drawing roller to thereby orient the dyed iodine; an oven equipped with a thermometer to measure a temperature of the oven (‘oven thermometer’) to dry the iodine-oriented PVA film; and a central controller that predicts a transmittance of the polarizing film, on the basis of information regarding characteristics of input data measured by the above thermometers of the first and second baths and the oven as well as the densitometer of the second bath, and information regarding characteristics of a PVA film introduced into the continuous process, and then, controls the temperatures of the first and second baths and the oven and an amount of a composition fed to the second bath.
    • 本发明公开了一种通过用碘染色基底膜然后通过连续方法将其取向而制备显示出偏振性(“偏光膜”)的膜的装置,并且上述装置包括:第一个装有温度计 测量第一浴(“第一浴温度计”)的温度,其中洗涤作为基底膜的聚乙烯醇(PVA)膜; 配备有用于测量第二槽(“第二浴温度计”)的温度的温度计的第二槽和用于测量第二槽(“第二槽密度计”)的浓度的密度计,其中将洗涤的PVA膜浸入 碘溶液并在其中染色; 第三浴,其中碘染色的PVA膜通过拉伸辊拉伸,从而使染色的碘定向; 装有温度计的烤箱,用于测量烤箱温度(“烤箱温度计”)以干燥碘取向的PVA膜; 以及基于关于由第一和第二浴和烘箱的上述温度计测量的输入数据的特性的信息以及第二浴的浓度计的信息来预测偏振膜的透射率的中央控制器,以及关于 引入到连续方法中的PVA膜的特性,然后控制第一和第二浴和烘箱的温度以及进料到第二浴中的组合物的量。