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Coating method for forming coating film with special pattern

A coating method and coating technology, which are applied to devices for coating liquid on surfaces, special surfaces, coatings, etc., can solve the problems of reduced workability and productivity, increased work time and labor costs, etc. and excellent productivity

Pending Publication Date: 2022-07-26
KCC CORP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the putty work is performed in this way, grinding work must be performed manually after the putty work, and the above-mentioned process is often repeated many times depending on the degree of appearance defects, so there is a problem that the work time and labor costs increase.
[0003] In particular, raw materials such as castings often have defects in appearance due to their characteristics, and there is a problem that workability and productivity are lowered in the case of conventional methods.

Method used

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  • Coating method for forming coating film with special pattern
  • Coating method for forming coating film with special pattern
  • Coating method for forming coating film with special pattern

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-12

[0077] The coating of Examples 1-12 was carried out according to the polyurethane coating composition (main agent: curing agent=9:1 volume ratio) and coating method of Table 1-2 below.

experiment example

[0106] [Experimental Example - Evaluation of Physical Properties]

[0107] For the polyurethane coating compositions prepared according to the respective Examples and Comparative Examples, physical properties were evaluated by the following methods. In addition, the pattern of the surface of the coating film was observed after the coating film was formed according to the respective Examples and Comparative Examples. The evaluation results are shown in Tables 4-6 below and Figure 2-6 middle.

[0108] adhesion

[0109] Evaluation was performed according to ASTM D3359 (1 mm cross cut). The evaluation criteria are as follows.

[0110] ◎: 95% or more of non-peeled parts

[0111] ○: The non-peeled portion is 90% or more and less than 95%

[0112] △: 85% or more and less than 90% of non-peeled parts

[0113] X: The unpeeled portion is less than 85%.

[0114] workability

[0115] Workability was evaluated by measuring viscosity according to ASTM D562.

[0116] dryness

[0...

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Abstract

The present invention relates to a coating method for forming a special pattern with excellent workability and productivity and with inertia.

Description

technical field [0001] The present invention relates to a coating method for forming a special pattern coating film, and more particularly, to a coating method for forming a special pattern consistently with excellent workability and productivity. Background technique [0002] When painting is performed on the surface of a coating object having cracks, grooves, and the like, a method of making up for appearance defects by performing a putty work before painting has been performed. As an example, Korean Patent No. 2124756 discloses a repainting method of a sheet metal part of a vehicle part, which includes grinding of the heated construction part after applying putty to the construction part and heating to finish the surface grinding process. However, when the putty work is performed in this way, the grinding work must be performed manually after the putty work, and the above-mentioned process is often repeated many times depending on the degree of appearance defects, so the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/24B05D1/02C09D175/04C09D7/61C08G18/62
CPCB05D5/00B05D7/24B05D1/02C09D175/04C09D7/61C08G18/6216C08K3/346C08K3/34B05D7/58B05B9/03B05B7/2402C09D175/06
Inventor 金哲圭安真佑孙畅庸朱庸畯
Owner KCC CORP CO LTD
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