Device for predicting amount of coarse flakes in coating compositions by wet color measurement
A technology for predicting devices and compositions, applied in the field of quantitative devices, can solve problems affecting the quality of coating compositions between batches, frequent interruptions of the preparation process, and tediousness
Active Publication Date: 2015-01-21
艾仕得涂料系统有限责任公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0003] The above testing procedures are not only time-consuming and cumbersome, but also lead to frequent interruptions in the preparation process
As a result, the batch-to-batch quality of the resulting coating composition can be adversely affected
Method used
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Embodiment
[0041] Table 1 below lists a sample of the coating composition, which includes the same as the 780 supplied by DuPont Company of Wilmington (DuPont Company of Wilmington). TM A variety of mixtures of polymer-mixed coarse flakes and fine flakes. The coarse flakes are Sparkle Silver 3641 flakes with an average size of 31 micrometers, which are produced by Silberline of Tamaqua, Pennsylvania (Pennsylvania). The thin flakes were aluminum paste 33313 flakes with an average size of 15 microns, which were supplied by Eckart of Louisville, Kentucky. The layers of these samples were applied to the substrate 2 of the device 1, and the MA-68 colorimeter 26 (MA-Rite) supplied by X-Rite of Grand Rapids, Michigan was used. 68color instrument) to measure the dynamic color of the layer:
[0042] Table 1
[0043]
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
Weight of thin flakes
100
80
60
30
0
Weight of thick slices
0
20
40
70
100
Weight of polymer
900
900
900
900
900
total weig...
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Abstract
The present invention is directed to a device for predicting amount of coarse flakes, such as metallic aluminum flakes present in a coating composition, such as automotive OEM or refinish paint. The device includes measuring flop of a layer of the coating composition applied over a test substrate by using flop prediction device of the present invention. The process is repeated with varying amounts of one or more different types of coarse flakes added to the composition and the flop vs. amount of coarse flakes present in the coating composition is plotted on a graph and then by using a curve fitting equation, a flake amount prediction curve is obtained. By measuring the flop of a wet layer of a target coating composition, the amount of coarse flakes present in the target coating composition can then be predicted by using the flake amount prediction curve. The device is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
Description
Technical field [0001] The present invention relates to a device for predicting the amount of coarse flakes distributed in a coating formed by a layer of coating composition applied to a substrate, wherein the coating composition includes coarse flakes and fine flakes. combination. The device more specifically relates to a quality assurance process that predicts the amount of coarse flakes distributed in the coating when the formed automotive OEM paint (original paint) and refinish paint are being prepared on a real-time basis. Background technique [0002] Usually in the process of preparing coating compositions such as automotive OEM paints or refinishes containing flakes, samples of the coating composition being prepared are taken from time to time and applied as a layer with the required thickness on the test substrate. It dries and / or cures into a coating and undergoes a dynamic color (flop) measurement to check the distribution of coarse flakes in the coating. Then adjust...
Claims
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Login to View More IPC IPC(8): G01N21/25G01N33/32
CPCG01N21/57G01N21/49G01N21/53
Inventor A·莫伊R·G·萨利亚A·横山
Owner 艾仕得涂料系统有限责任公司