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Automatic selection of colorants and flakes for matching coating color and appearance

A colorant, flake technology used in color matching, coating, color measuring devices, etc.

Active Publication Date: 2009-12-30
艾仕得涂料系统有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this traditional method requires repeated spraying and visual comparison of the test panels to the target coating

Method used

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  • Automatic selection of colorants and flakes for matching coating color and appearance
  • Automatic selection of colorants and flakes for matching coating color and appearance
  • Automatic selection of colorants and flakes for matching coating color and appearance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] A steel blue painted vehicle part of a Honda Pilot model with damaged coating used for paint repair. The auto part is a cut piece of metal from the car body. The paint color code for automotive steel blue paint is B533M. The automotive part was imaged using two preset illumination intensities at a fixed illumination angle, ie, perpendicular (0°) to the surface of the coated area to generate a coating image. Each image is measured at a high threshold level and a low threshold level to generate automotive coating appearance data.

[0121] By comparing this appearance data with the appearance characteristics of known flakes coated with a reference coating stored in the flake database, a 25 / 75 blend of two aluminum flakes was selected. Among the two kinds of aluminum flakes, one is thick flake 814J, and the other is fine bright aluminum flake 819J.

[0122] Automobile color was measured using a goniospectrophotometer model MA68II manufactured by X-Rite, Grandville, Michi...

Embodiment 2

[0130] A Honda Pilot car with steel blue paint has damaged paint and needs a touch-up coat. The car has a paint color code of B533M. Coating images were generated by imaging the painted area of ​​the car adjacent to the damaged coating using two preset illumination intensities at a fixed illumination angle, i.e., perpendicular (0°) to the surface of the coated area. Each image is measured at a high threshold level and a low threshold level to generate automotive coating appearance data.

[0131] Coating images were measured using the same method as described in Example 1 and flakes were selected to prepare matching formulations. Coating damage was repaired as described in Example 1.

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PUM

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Abstract

The present invention is directed to a method for automatic selection of colorants and flakes to produce one or more matching formulas to match color and appearance of a target coating containing flakes. The present invention is further directed to a system for automatic selection of colorants and flakes for producing one or more matching formulas to match color and appearance of a target coating.

Description

technical field [0001] The present invention relates to a method of preparing one or more matching formulations to match the color and appearance of a target coating containing flakes. The invention also relates to a method of automatically selecting colorants and flakes to produce one or more matching formulations for matching the color and appearance of a target coating. Background technique [0002] Surface coatings containing effect pigments, such as light-absorbing pigments, light-scattering pigments, light-interference pigments and light-reflecting pigments, are well known. Flakes, such as metal flakes (e.g. aluminum flakes), are examples of such effect pigments and are especially suitable for protecting and decorating automobile bodies, for example because they impart differential light reflection effects (commonly referred to as "color effects") And a flake appearance effect including size distribution of the flakes and the sparkle imparted by the flakes and an enha...

Claims

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Application Information

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IPC IPC(8): G01J3/46C09D7/80
CPCG01J3/504G01J3/50B05D5/06B44D3/003G01J3/463G01J3/46
Inventor A·普拉卡什J·E·奥贝茨
Owner 艾仕得涂料系统有限责任公司