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Curtain coating machine and curtain coating method

A coating and curtain technology, applied to the surface coating liquid device, coating, spraying device, etc., can solve the problem of polluting the edge guide, etc., and achieve the effect of easy change

Inactive Publication Date: 2015-11-18
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during cleaning, coating liquid, cleaning liquid, etc. may splash and contaminate the edge guide

Method used

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  • Curtain coating machine and curtain coating method
  • Curtain coating machine and curtain coating method
  • Curtain coating machine and curtain coating method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0181] about Figure 2 to Figure 7 In the shown curtain coating machine, the edge fixing device 10 is inserted into the slit of the slit lamination 1, the discharge port of the slit lamination 1 is covered with a sheet 14 as a fall prevention member, using the fixing member 12 and the tight The contact member 11 presses the sheet 14 onto the discharge port of the slit lamination, and performs curtain coating and curtain film coating width change.

[0182] In Example 1, the ratio (A / B)×100 is 90%, where A represents the thickness of the discharge width regulating member, and B represents the width of the discharge port of the curtain coating member.

[0183] In Example 1, the surface of the discharge port of the curtain coating member had a flat portion of 2 mm. The length of the discharge port in the width direction was 600 mm.

[0184] The edge fixing device 10 as a discharge width regulating member is a sheet-type member having a thickness of 0.488 mm and a length of 75 mm...

example 2

[0191] Curtain coating and curtain film coating width change were performed in the same manner as in Example 1, except that the sheet 14 was pressed to the slit using an edge guide 2 and a close contact member (integrated with a fixing member) On the discharge port of the laminated film. When the curtain coating and the change of the coating width of the curtain film were performed with the curtain coating machine of Example 1, the liquid leakage from the discharge port of the slit lamination, the easiness of changing the coating width, and the edge guide were evaluated The contamination state of the curtain film down the flow surface. The results are shown in Table 1.

example 3

[0203] Curtain coating and change of curtain film coating width were performed in the same manner as in Example 1, except that the ratio (A / B)×100 was set to 99%. When the curtain coating and the change of the coating width of the curtain film were performed with the curtain coating machine of Example 1, the liquid leakage from the discharge port of the slit lamination, the easiness of changing the coating width, and the edge guide were evaluated The contamination state of the curtain film down the flow surface. The results are shown in Table 2.

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Abstract

Provided is a curtain coating machine, including at least; a curtain coating member (1) including a discharging port from which a coating liquid is discharged in a curtain shape; a discharging width regulating member (10) provided in the discharging port and regulating the discharging width of the coating liquid discharged in a curtain shape; a drop-off preventing member (14) preventing the discharging width regulating member (10) from dropping off from the discharging port; a fixing member (12) fixing the drop-off preventing member (14); a close contact member (11) movable on the fixing member (12) and closely contacting the drop-off preventing member (14), and via the drop-off preventing member (14), preventing the coating liquid from leaking in a discharging direction from where the discharging width regulating member (10) is provided in the discharging port; and a guide member (2) provided detachably on the fixing member (12) and guiding width-direction both edges of the coating liquid discharged from the discharging port in a curtain shape.

Description

technical field [0001] The present invention relates to slot curtain coating machines and curtain coating methods. Background technique [0002] There is a proposed slit curtain coating machine that includes a method that does not change the discharge width of the coating liquid to be discharged from the slit lamination film, but with within the width of the falling curtain film In the case of an inserted curtain film separation liquid container tray and includes a curtain film separation plate, by withdrawing the coating liquid from both edges of the curtain film and separating the withdrawal at the two edges from the central coating part of the curtain film The width of the curtain coating is changed by changing the width of the part so that the width of the part falling on the supporting member is smaller than the width of the coating liquid when the coating liquid is discharged (see PTL1 and PTL2). [0003] However, the proposed technique needs to take out the coating l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/00B05D1/30
CPCB05B15/02B05C5/005B05C5/008B05C5/0266B05B15/50B05C11/00B05D1/305
Inventor 杣田浩纪山本一公
Owner RICOH KK
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