JPS6233579A - Repairing method for coated surface of pearl coated vehicle - Google Patents

Abstract

PURPOSE:To obviate the generation of uneven colors by coating a vehicle with a color determining paint mixed with an under coat and pearl base paint then coating the same with a pearl paint mixed with the pearl base paint at the higher ratio and coating the same with only the pearl base paint. CONSTITUTION:The coated surface of the pearl coated vehicle is coated with the color determining paint mixed, at 1:1 ratio by weight, with the under coat prepd. by adding an additive and solvent to the color-adjusted paint adjusted in color to meet with the color of the primer coat polished and exposed by sandpaper and the pearl base paint prepd. by adding an additive and solvent to the pearl base agent in the stage of repairing said surface. THe coated surface is then coated with the pearl paint prepd. by mixing 95% pearl base paint by weight to 5% color determining paint and is then coated with only the pearl base plate. The coated surface is subjected to finish painting in succession thereto. As a result, the thorough repair is made possible without generating the uneven colors at the boundary part between the repaired part and the non- repaired part. Since the repair can be made to the min. required area, lower cost is attainable.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a method of repairing the painted surface of an automobile body, and more specifically, to a method of repairing the painted surface of a specially painted vehicle generally referred to as pearl coating. be.

``Prior art'' Currently, the coating commonly referred to as burl coating for car body painting has a pearl-like luster in its finished state, exhibits a deep color, and is associated with a sense of luxury. There is a tendency to increase in

In the case of burl painting, first paint with an undercoat of any color, then paint with a pearl base paint containing a pearl component, and finish in this state, or apply a topcoat with a transparent paint. Since the undercoat color is visible through the pearl base layer containing pearlescent luster, it exhibits a deep color that is different from the undercoat color itself.

"Problems to be Solved by the Invention" Therefore, when attempting to repair a part of the paint on a car body that has been coated with crowbar paint, the paint film of crowbar paint has a multilayer structure as described above, so the repaired part cannot be repaired. If you simply repeat the above process after applying paper and polishing, it is normal for circular color unevenness to occur at the boundary between the repaired area and the non-repaired area. It is necessary to repaint a larger area than necessary (for example, repainting the entire bonnet to repair a small part of the bonnet), which increases the cost more than necessary, and it is psychologically difficult to repaint a larger area than necessary. Users do not like it because it spoils the appearance of new products, so there has been a desire for a new repair method that can repair as small an area as possible and does not leave defects such as uneven color.

"Means for Solving the Problems" The present invention aims to solve the above problems, and includes:
First, the area to be repaired is sanded with paper to expose the undercoat layer, and the paint is mixed appropriately to create a toned paint that has the same color as the undercoat.Additives such as hardeners and solvents are added to this. In addition, it is used as an undercoat paint. Next, additives such as a curing agent and a solvent are added to the pearl base agent to form a pearl base paint, and the undercoat and the pearl base paint are mixed at a weight ratio of 1=1 to form a tinted paint on the repaired area. to 2
~ Paint 6 times. Next, a pearl paint is prepared by mixing 5% of the coloring paint and 95% of the Nihar base paint by weight, and this is coated an arbitrary number of times to match the color tone. Then, apply only one or two coats of pearl base paint to create a crowbar look. After this, if necessary, a finishing coat is applied to give a final finish.

``Function'' In the present invention, the undercoat paint and the pearl base paint, which were conventionally thought to be effective only when used separately, are mixed at a weight ratio of 1:1. By painting as a (colored paint), the strength of the undercoat paint is reduced and softened, and a paint film is formed that takes into account the pearly feel of the pearl base paint, so especially near the boundary between the repaired area and the non-repaired area. It is possible to prevent ring-shaped color unevenness from occurring due to the strength of the undercoat paint, and then the pearl base paint 9
By painting with pearl paint mixed at a weight ratio of 5%, it is possible to perfectly match subtle color gaps and discrepancies in the repaired area, and by painting only with pearl base paint, the burl It is possible to completely match the feelings.

"Example" An example of the present invention is as follows.

(1) Polish the repaired part of the crowbar painted car with +600 paper, then erase the eyes with +1200 paper,
Furthermore, the undercoat color is exposed by polishing with a compound, and the paint is appropriately mixed using the undercoat color as a colorimetric sample to create a toned paint that accurately matches the undercoat color.

(2) Create an undercoat paint and pearl base paint mixed at the following mixing ratio.

Thinner 70-100 Thinner 160-1
70 Hardening agent 10 Hardening agent 10 Toning paint 90 (*) Pearl base agent 90 (6)
A tinted paint is prepared by mixing 50% of the above-mentioned undercoat paint with 50% of the pearl base paint at a weight ratio cE, and is sprayed 2 to 3 times on the repaired area. At this time, concentrate on painting the peripheral border area of the exposed base to completely determine the color.

(4) Next, create a pearl paint by mixing 5% of the colored paint from (3) with 95% of the pearl base paint by weight.
6) After the process, spray paint the repaired area the required number of times.

At this time, spray from the center toward the peripheral blurred area, especially contrasting the color tone of the non-repaired area (new car area).
Be careful not to apply too much paint.

(5) Next, apply one or two light coats using only the pearl base paint (2) to completely match the pearl feel.

After this, if necessary, a final finishing step such as a transparent paint finish is performed.

``Effects of the Invention'' The present invention eliminates color unevenness at the boundary between the repaired area and the non-repaired area in the repair of the painted surface of a crowbar coated car, where conventional methods cause color unevenness and are considered impossible to completely repair. It can be completely repaired without causing damage, and only requires repairing (repainting) the minimum necessary area, so the cost is low, the work can be done quickly, and the work time can be shortened, as well as covering a large area. This has the effect of reducing the user's psychological resistance to repair.

Claims (1)

[Claims] When repairing the painted surface of a pearl-coated car, we use an undercoat that is made by adding additives and solvents to a toning paint that is mixed to match the exposed undercoat color after papering and polishing, and a pearl base agent with additives and solvents. After painting with a coloring paint made by mixing pearl base paint created by adding a solvent at a weight ratio of 1:1, pearls were mixed with 5% of the coloring paint and 95% of the pearl base paint by weight. Painted with paint,
A repair method characterized in that the surface is then painted only with the pearl base paint, and then a finishing coat is applied.