Painting device, painting method, and display member provided therefrom

A coating device and coating technology are applied to the device, coating, optics and other directions of coating liquid on the surface to achieve the effects of buffering spit fluctuations, improving film thickness uniformity and high productivity

Inactive Publication Date: 2007-03-21
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Painting device, painting method, and display member provided therefrom
  • Painting device, painting method, and display member provided therefrom
  • Painting device, painting method, and display member provided therefrom

Examples

Experimental program
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Effect test

Embodiment 1

[0132] Fig. 1 shows a flow chart of liquid infusion in a slot die coating apparatus used in this example. A piston type hydraulic pump 3 with an inner diameter of 18 mm was used as a coating liquid supply device, and a die nozzle 6 with a discharge slit width of 620 mm and a slit gap of 100 μm was used as a coating device. In addition, a chamber 5 is provided on the pipe, and this chamber 5 seals a member for buffering discharge fluctuations that eliminates stagnant portions of the coating liquid as much as possible. Oxygen permeability: 800cm 3 / m 2 ・day・MPa) polyethylene sheet is laminated and heat-sealed with a width of 2mm in the outer peripheral part, thereby enclosing 0.8cm 3 parts of the air. The apparent specific gravity of this component is 0.091 times the actual density of the gas-encapsulated material, the wetted area is 100% of the surface area, the flatness index A=1.84, and V / Q=0.343. Use this coating device, on the non-alkali glass substrate of 620 * 750mm, ...

Embodiment 2

[0144] As shown in the flow chart in Figure 2, a needle valve is set as a device 10 to increase the internal pressure of the pipeline, and the opening of the valve is adjusted until the indicated value of the pressure gauge 9 measuring the pipeline pressure between the coating liquid supply device and the needle valve It was 0.1 MPa, and the coating film formation was performed similarly to Example 1 after that.

[0145] The evaluation results are shown in Table 1.

[0146] A. Uneven interference

[0147] Striped interference unevenness was not seen at all, so it was judged to be excellent.

[0148] B. Average film thickness, coating stability distance, film thickness distribution width

[0149] A coating stability distance of 14 mm is judged to be good (Fig. 5-c).

[0150] In the stable coating range, the film thickness distribution width R = 0.004 μm, which is greatly improved compared with Example 1, and judged to be excellent (Fig. 5-d).

[0151] C. Continuous use perf...

Embodiment 3

[0156] As shown in the flow chart in Figure 2, a gas barrier sheet with a size of 20×20mm and a thickness of 112μm (Mitsubishi Gas Chemical Co., Ltd. PTS bag: 5cm 3 / m 2 ·day·MPa) was used as a material for enclosing gas in the member 5a that buffers discharge fluctuations, and a coating film was formed in the same manner as in Example 2. The apparent specific gravity of this part is 0.107 times the actual density of the gas-encapsulated material, the wetted area ratio is 100% of the surface area, the flatness index A=1.82, and V / Q=0.350.

[0157] The evaluation results are shown in Table 1.

[0158] A. Uneven interference

[0159] Strip unevenness was not seen at all, and it was judged as excellent.

[0160] B. Average film thickness, coating stability distance, film thickness distribution width

[0161] The coating stability distance was 14 mm, which was judged to be good.

[0162] In the stable coating range, the film thickness distribution width was R=0.004 μm, which ...

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Abstract

A painting device, a painting method, and a display member provided by the device and the method. In the painting device and the painting method capable of suppressing discharge pulsation, providing thin-film coating having excellent film thick uniformity, and having excellent discharge responsiveness, a member (portion 5) damping the discharge pulsation is installed between a paint liquid supply means (for example, syringe pump 3) and a painting means (for example, die ferrule 6). The discharge pulsation generated by the syringe pump is damped by the volumetric change of the member (5a) damping the pulsation which is disposed in the pulsation damping portion (5), and a constant volume of discharge with suppressed pulsation can be provided from the die ferrule.

Description

technical field [0001] The present invention relates to a coating device, in particular to a coating device suitable for intermittent coating, and to a coating method using the coating device. It is a coating device with good film thickness variation and intermittent coating discharge responsiveness. The coating device of the present invention can be suitably used for display devices and color filters for display devices, in addition to being suitable for uniformly coating coating films such as magnetic materials or thin films on substrates such as sheets or glass. , LCD array, optical filter. Background technique [0002] In recent years, in the manufacturing process of recording media, etc., it is required to uniformly coat a thin film such as a magnetic substance or a paint on a substrate such as a sheet, so various infusion devices that minimize the discharge fluctuation of the coating liquid have been created. [0003] In plastic substrates for optical filters, glass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02B05C11/00B05D1/26B05D3/00B05C11/10
CPCB05C11/10B05C5/0254B05D1/26G02F1/133516
Inventor 梶野佳范小林裕史铃木哲男久保善彦和田修
Owner TORAY IND INC
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