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Motor vehicle painting process

A vehicle and body technology, which is applied in the field of vehicle painting, can solve the problems of disclosing painting methods, and achieve the effect of avoiding repair operations

Inactive Publication Date: 2016-06-01
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Known DE 19810900 discloses the use of a coating composition for the manufacture of vehicle parts, such as car bodies or exterior parts such as bumpers, the coating containing a paste It contains matting mechanisms and / or texturing mechanisms and therefore it is desirable to limit the glossy appearance
[0009] None of the prior art documents discloses a method of painting vehicle bodies with a matte finish

Method used

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Examples

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Embodiment Construction

[0038] An embodiment of the method according to the invention is now described.

[0039] During the finishing painting procedure of a vehicle, a first step is carried out, which is the application of a base coat or the application of a colored primer tinted by means of pigments and which imparts functional properties as well as UV protection. The substrate is of conventional type, liquid and applied by spraying. The base or the primer is applied to the exterior, body and interior of the vehicle (door entry, window panel entry, etc.). Then, a substrate is applied, such as acrylic, which is dyed with pigments that give the vehicle its colour.

[0040] This is followed by a drying step which dries the applied substrate eg at 70° C. for 6 minutes, which is also called a matting step and which allows evaporation of the solvent and, in the case of water-dilutable paints, water. This step is ineffective in the case of solvent-based paints.

[0041]Once cooling is obtained, a liqui...

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Abstract

The invention relates to a process for painting a motor vehicle body, comprising at least the steps according to which at least one base that imparts the colour is applied to a vehicle body, then a varnish comprising matting agents that impart a matt finish and texturing agents that impart a textured finish that masks surface defects of said body is applied.

Description

technical field [0001] The present invention relates to a method of painting a vehicle, and more particularly to a method of painting a vehicle imparting a matte finish. Background technique [0002] Traditionally, car bodies have a smooth and shiny finish in the vehicle industry. Nowadays, over the years, vehicles have also been proposed which have a matt or satin finish, but always have a smooth appearance. [0003] However, the big disadvantage of smooth finishes, whether lacquered glossy or matt, is the lack of tolerance for cosmetic imperfections, and thus for surface imperfections. In addition, the glossy finish also contributes to the vulnerability of use, not least because of the high sensitivity to scratches. [0004] During the manufacture of vehicles with a shiny and smooth finish, linear repair of surfaces can be performed when the surface has imperfections such as dirt, spots, weld craters, etc. Thus, for example, linear repairs of the grinding and polishing ...

Claims

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Application Information

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IPC IPC(8): B05D5/02B05D7/00C09D7/42C09D7/65
CPCB05D5/02B05D5/061B05D7/14B05D7/53C09D5/28C09D7/65C09D7/69C08L77/00C09D7/42
Inventor 安托万·维厄塞巴斯蒂安·莫劳
Owner PEZHO SITROEN AUTOMOBILS SA
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