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809800 2009 年 04 月 13 日 10:20 Reading (loading. ..) Comments (0) Category: Personal Diary
LCD the basic method of production of Polaroid film production technology to the current PVA polarizing film by an extension of technology, there are dry and the wet hair into two categories; the PVA membrane by staining methods,
mbt靴 歩き方, systems and iodine dye staining with the two major categories.
polarizing film production technology is the dry PVA film in a certain temperature and humidity conditions for an extension of the steam process under way, the early use of this technology approach is intended to improve the process production efficiency, the use of larger width to produce the PVA film Bu Zhiyu often broken film. However, the limitations of this technology is an extension of the process of PVA film uniformity is limited, so the formation of the polarizing film composite tension of the original film,
Cwow - Qzone log, color uniformity and durability of easy stability, and therefore the application in the actual production process less. Polaroid production technology is the wet PVA film is in a certain ratio of liquid dyeing,
nike dunks for sale, stretching the process method. The limitations of this technology approach is the PVA film early in the liquid difficult to extend the stability control,
物理学王传授讲授解2012. - Qzone日记, the use of this technology easily broken membrane processing PVA film, PVA film and the width is limited. But with the improvement of industrial control technology,
MBT 通販, the limitations of these wet process has been greatly improved, the late 90s from the 20th century,
靴 mbt 激安, Japanese companies have generally adopted the polarizer width of the TAC film with the wet 1330 Process for the production of polarizing film. Especially due to large-size TFT-LCD products, large-scale popularization of products to enhance the utilization of the polarizer to 1330 as the base width of the LCD polarizing film production has become a polarizing film produced by the basic method.
polarizing film production process of iodine staining dye staining and staining two processes. Iodine staining is staining in the polarizing film, the stretching process, the use of iodine and potassium iodide as a bidirectional medium to produce polarized PVA film polarizing properties. This staining method has the advantage of easier access to more than 99.9% and 42% of the high degree of polarization than the polarization characteristics of high transmittance. So in early polarizing material products or require high polarization and high transmission properties of the polarizing material products are used in most of the iodine dyeing processing. However, this process is due to the inadequacy of the molecular structure of iodine under the conditions of high temperature and humidity easily damaged, so the use of iodine staining technology, the poor durability of polarizing film, the general can only meet the dry temperature: 80 ℃ × 500HR , heat: 60 ℃ × 90% RH × 500HR use the following working conditions.
but with the use of LCD products,
mbt 販売, the expansion of the heat of the polarizing products,
nike dunk store, more and more demanding requirements of working conditions, there have been requested at 100 ℃ and 90% RH conditions, product demand polarizers work ,
mbtシューズ 価格, required for such working conditions, iodine dyeing process on the powerless. To meet the requirements of this technology, first invented by the Japanese of the drug needed for the production of the dye polarizing film by Nippon Kayaku, a subsidiary of the Japanese Department of Bora dye produced high durability Polaroid products. Using bidirectional dye dyeing Polaroid Polaroid produced products meet the highest dry temperature: 105 ℃ × 500HR,
○. Tomorrow is Another Day '- Qzone log, humidity: 90 ℃ × 95% RH × 500HR the following conditions of work requirements. However, this process approach produced by Polaroid products are generally lower polarizing degree and transmittance, the polarization degree of not more than 90%, transmittance of not more than 40%, and the price is expensive.
Hybrid Mode
