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Coating device and manufacturing method of coating film product with the same

A coating device and coating film technology, which are applied in the cleaning method using liquid, the device for coating liquid on the surface, chemical instruments and methods, etc. Suppresses problems such as flange failures, suppresses instability of ejection speed or ejection angle, suppresses failures, and reduces sheet end failures

Active Publication Date: 2015-03-18
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, when the alkaline aqueous solution of the tablet is cleaned by the slot injection mold, there is a disadvantage that failure of the flange part caused by poor cleaning caused by ejection to the material cannot be suppressed. Caused by instability of the spray speed or spray angle of the cleaning fluid on the flange of the sheet

Method used

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  • Coating device and manufacturing method of coating film product with the same
  • Coating device and manufacturing method of coating film product with the same
  • Coating device and manufacturing method of coating film product with the same

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Embodiment Construction

[0030] The application of a preferred embodiment of the coating device of the present invention to a production line for optical compensation films will be described in detail with reference to the following drawings.

[0031] figure 1 It is a figure showing the production line of an optical compensation film, and each process up to the manufacture of an optical compensation film is demonstrated sequentially.

[0032] [Manufacture of alkali-saponified polymer film]

[0033] like figure 1 Shown, the manufacture method of alkali-saponified polymer film is mainly made up of following steps: alkaline aqueous solution is coated on the polymer film 16 that sends out from sender 66 and the coating process 20 that film surface is carried out saponification; A washing step 24 of washing away the alkaline aqueous solution and drying the saponified polymer film. Also, in the present invention, in the coating step 20, the alkaline aqueous solution coated on the surface of the polymer f...

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Abstract

The present invention provides a coating device which can effectively restrain ejection speed and ejection angle unstability of the cleaning liquid that is ejected to a flange part of material sheets, and a manufacturing method of the coating film product with the coating device. Spacers (54) are provided on a split (32). Each spacer is provided with the following components: a part (54a) which is separated from a bag part (46) for a preset distance (X) and is parallel with a split ejection port (32A); and an inclined part (54b) which generates an ejection angle of the cleaning liquid at the split ejection port.

Description

technical field [0001] The present invention mainly relates to a coating device that sprays cleaning water supplied to a bag portion of a slot die through a slit from a slot discharge port to a moving material coated with an alkaline aqueous solution. on the sheet to clean the sheet. Background technique [0002] In recent years, liquid crystal display devices have been adopted in various fields as flat-panel image display devices (FPD, flat panel display). A liquid crystal display device is composed of a sheet material (optical film) having an optical function, such as a liquid crystal cell, a polarizing plate, and an optical compensation plate (retardation plate). [0003] A polarizer usually consists of a polarizing film and two transparent protective films on both sides. A polarizing film is usually obtained by impregnating polyvinyl alcohol in an aqueous solution of iodine or a dichroic dye and uniaxially stretching it. An optical compensation sheet has a function of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/00B05C11/00B05B1/30B05B1/28B08B3/02G02B5/30G02B1/10B05C5/02G02F1/13G02F1/13363
Inventor 松下俊一郎
Owner FUJIFILM CORP