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Coating device and coating method

A coating device and coating technology, applied in the field of rod coating device and rod coating, coating object with rough surface, rod coating device, can solve coating irregularity and coating film interruption , It is difficult to obtain a uniform coating surface, etc.

Inactive Publication Date: 2003-04-09
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] After the air-entrained film is formed on the surface of the carrier sheet, the air-entrained film will be carried by the carrier sheet to the liquid beads used as the coating portion, and this will cause defects in the coating liquid film formed on the surface of the carrier, e.g. film breaks and coating irregularities
More difficult to obtain a uniformly coated surface due to tendency to air entrainment

Method used

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  • Coating device and coating method
  • Coating device and coating method

Examples

Experimental program
Comparison scheme
Effect test

example I( example 11-14 and comparative example 11-14

[0214] A carrier sheet W was obtained by blasting one side surface of an aluminum sheet according to a conventional method, and anodizing the blasted surface.

[0215] use figure 1 The illustrated coating device 101 coats a carrier sheet W with a photosensitive layer forming liquid.

[0216] The coating conditions of the photosensitive layer forming liquid are as follows.

[0217] a. Thickness of carrier sheet W: 0.3mm

[0218] b. Conveying speed of carrier sheet W: 150 m / min. Coating amount of rod type coating device 102: 50 cc / m 2 d. Measuring capacity of rod-type dosing device 104: 15cc / m 2 e. Diameter of coating rod 122: 10mm f. Diameter of dosing rod 142: 10 mmg.

[0219] Rod speed(rpm)

coated surface

quality

Remark

painted pole

Quantitative rod

Example 11

+4770(no driver)

-500

○

Example 12

+300(with driver)

+500

○

Example 13

+4770(no dri...

example II

[0276] In this example, the coating liquid 250 is coated on the aluminum sheet 214 by the rod coating device 212 of the present invention.

[0277] First, implement mechanical roughening treatment, chemical etching treatment, electrolytic roughening treatment and anodic oxidation treatment on the surface of the strip-shaped aluminum plate to obtain a substrate (aluminum sheet 214) with an arithmetic mean roughness Ra of 0.20 μm and an arithmetic mean A substrate (aluminum sheet 214) having a roughness Ra of 0.26 μm. The aluminum sheets 214 were applied with the coating liquid 250 by the rod coating device 212, their coated surface quality was evaluated, and the state of the coated surface was observed.

[0278] The coating conditions are as follows.

[0279] a. Width of aluminum sheet: 500mm

[0280] b. Thickness of aluminum sheet: 0.3mm

[0281] c. Conveying speed: 150m / min

[0282] d. Coating amount

[0283] Preliminary coating rod: 0.051 / m 2

[0284] Adjustment (meas...

example III

[0305] In this example, the coating liquid 250 is coated on the aluminum sheet 214 by the rod coating device 212 of the present invention.

[0306] First, mechanical roughening, chemical etching, electrolytic roughening, and anodizing were performed on the surface of the strip-shaped aluminum plate to obtain a substrate (aluminum sheet 214) having an arithmetic average roughness Ra of 0.48 μm. The aluminum sheet 214 was applied with the coating liquid 250 by the rod coating device 212, the quality of its coated surface was evaluated, and the state of the coated surface was observed.

[0307] The coating conditions are as follows.

[0308] a. Width of aluminum sheet: 500mm

[0309] b. Thickness of aluminum sheet: 0.3mm

[0310] c. Conveying speed: 150m / min

[0311] d. Coating amount: 0.021 / m 2

[0312] e. Coating rod diameter: 10mm (both)

[0313] f. Coating rod revolutions

[0314] Preliminary coating rod: Same speed and direction as aluminum sheet (driven rotation)

...

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Abstract

A coating device and a coating method are provided. The coating device comprises a coating station for coating a coating liquid on a band-shaped substrate running continuously, and a coat-adjusting station disposed downstream of the coating station for adjusting the coating liquid on the substrate so that the coating liquid layer is coated on the substrate at a predetermined thickness. The coating station and the coat-adjusting station comprise first and second bars for respectively coating and measuring the liquid agent. The coating liquid can be coated on evenly and in a stable manner even if the coating operation is performed with the substrate running at a high speed.

Description

technical field [0001] The invention relates to a coating device and a coating method. In particular, the present invention relates to a coating apparatus and a coating method capable of performing a stable and uniform coating operation even in the case of applying a coating liquid to a substrate surface while a belt-shaped substrate is running at high speed Down. [0002] Furthermore, the present invention relates to a coating device and a coating method using a rod coater. Specifically, the present invention relates to a rod type coating device and a rod type coating method capable of applying a coating liquid agent on a coating object conveyed at high speed in a constant direction, and preferably suitable for coating with a rough surface object. [0003] In addition, the present invention relates to a rod-type coating device, which includes a coating rod and a main side intercepting member arranged upstream of the coating rod, and can effectively prevent the coating liqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/08B05C11/02G03C1/74
CPCG03C1/74B05C1/0826B05C11/025B05C1/0813B05C1/0839
Inventor 市川和纪金子修芳西野刚
Owner FUJIFILM CORP
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