JPH0873784A - Sheet for judging primary color added in small amount in final color matching step and method of performing color matching of coating material therewith - Google Patents

Abstract

PURPOSE: To provide a sheet with which the fine adjustment of color matching in the final step can be performed quickly, simply and efficiently by forming a clear coat on a transparent sheet and forming a color clear coat on the former coat. CONSTITUTION: The film formation side of a transparent sheet (a) being a synthetic resin film, a regenerated cellulosic film, especially desirably, a 5-50μm- thick polyethylene terephthalate film is degreased with a degreasing agent, this side is coated with a two-pack curing acrylic urethane coating material (e.g. a clear coating material or a diluted coating material) acting as a base in color matching and having good adhesion to the transparent sheet (a) with a curing agent being a flexible polyisocyanate to form a clear coat (b). The clear coat (b) is coated with a diluted primary color coating material for color matching, to form a 5-30μm-thick color clear coat (c). Here, the primary color coating material is diluted fivefold to thirthfold so that the sheet 1 may be seen through the coat. Such sheet for judging is made for every primary color.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trace amount additive primary color judgment sheet in the final step of paint toning and a paint toning method using the same, and particularly to the final step in the toning of automotive repair paints at the painting site. TECHNICAL FIELD The present invention relates to a trace amount addition primary color judgment sheet capable of performing fine adjustment quickly and simply and a paint color matching method using the same.

[0002]

2. Description of the Related Art The coating color of an automobile differs depending on the type of vehicle, the manufacturing model, etc., even if the same color is used. In addition, even in the case of the same model, the color tone is different between a new car and a repair due to discoloration, and even a new car is often not finished in a constant color depending on the painting line and lot. When repairing such automobile coatings, in recent years, the color matching work of repair paints has been advanced in response to changes from the standard colors as described above, using computer toning and measurement toning systems. (For example, JP-A-2-29
No. 2699, etc.), the measurement and blending of primary color paints into base light-colored paints (including clear) has been rapidly started.

However, since the coating color of an automobile that is actually repaired is subtly different for each automobile, further fine adjustment is performed in the final step of toning. In this final step,
Visually compare the coating plate with the toning coating liquid that is getting closer to the color and the coating color of the actual vehicle, and add a small amount of the necessary primary color,
In addition, the operation of creating a paint board and comparing it with the paint color of the actual vehicle is repeated. Conventionally, the primary colors that are more necessary in this final process are
Although it was selected by a skilled person and added in a small amount, this method would require a lot of man-hours because trial and error would be repeated if there were no skilled person. In addition, due to competition in the color design of new cars, the use of new color materials in metallic systems has increased the number of coating colors, which has led to an increase in the types of primary colors of repair paints. Skilled experts can no longer handle it. Furthermore, in recent years, the body paint colors have become more vivid,
When the number of primary colors used during toning is too large, the vividness is lost, and the toning coating liquid cannot be used and is wasted. As described above, there has been a demand for a method capable of performing fine adjustment in the final process quickly, easily, and without waste.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the present inventor has found that a judgment sheet in which primary colors are applied to a transparent sheet in the final step of toning is useful. Arrived

That is, according to the present invention, a clear coat layer is formed on a transparent sheet, and a color clear coat layer is formed by diluting a toning primary color paint on the surface to form a color clear coat layer. Sheet, a set of a small amount of additive primary color determination sheet in the final step of toning, which is a combination of the determination sheets of various primary colors, and in the final step of the toning, the coating color of the coating plate with the toning coating liquid and the desired coating color The above-mentioned judgment sheets of various primary colors, which are expected to require further addition for minute differences in coating color, are successively superposed on the coated surface of the coated plate, and the color of the superposed portion and the desired coating are applied. Repeat the work of comparing with the color, select the judgment sheet that has the same tint, add a small amount of the primary color paint of the judgment sheet to the toning coating liquid, and again apply the coating color of the coated plate with the toning coating liquid. Check the match by comparing with the desired paint color, match If not, the present invention relates to a paint toning method that can simply and finely adjust toning, which comprises steps for repeating the above steps (1) to (3).

An embodiment shown in the drawings will be described below.

FIG. 1 shows a schematic view of the judgment sheet (1) of the present invention. In the judgment sheet (1), a clear coat layer (b) is formed on a transparent sheet (a), and a color clear coat layer (c) is formed on the surface by diluting a toning primary color paint. It will be.

As the transparent sheet (a), various synthetic resin films, recycled fibrin films, etc. can be used without particular limitation as long as they are transparent and have no problem in terms of strength, physical properties and the like. For example, polyethylene terephthalate, polyester, Examples thereof include polyamide and polyvinyl chloride, and a film of polyethylene terephthalate having a thickness of 5 to 50 μm is particularly preferable. It is desirable that the coating film forming side of the transparent sheet (a) be degreased with an ordinary degreasing agent.

The clear coat layer (b) formed on the transparent sheet (a) is a transparent coating (a) containing a clear coating.
It is applied on top. This absorbs the rough feeling after applying the primary color paint. The clear is not particularly limited as long as it has good adhesion to a clear paint or a diluting paint that becomes a base during toning, and other transparent sheet (a), and specifically, an acrylic lacquer and preferably Two-component curing type acrylic urethane paint can be used. In the case of a two-pack type, it is preferable to use a soft polyisocyanate as a curing agent from the viewpoint of the ability to follow the transparent sheet (a).

The color clear coat layer (c) formed on the surface of the clear coat (b) is formed by diluting the primary color paint for toning. Since each primary color has a different coloring power, the primary color paint is appropriately diluted with the above clear paint or the like so that the coated sheet (1) can be seen through. Specifically, it is desirable to dilute it to about 1/5 to 1/30, and adjust the amount of the primary color paint added to the toning coating solution depending on the degree of this dilution. The thickness of the color clear coat layer (c) is preferably about 5 to 30 μm (dry film thickness).

The determination sheet (1) thus obtained is prepared for each primary color, and a plurality of these determination sheets (1) are combined as a set, for example, laminated as shown in FIG. A sheet set (2) for determining a small amount of primary color in the final step of toning can be obtained by, for example, stapling at one corner with the tool (d). The determination sheet set (2) can be manually rolled and used to determine the coating color by superimposing it on a plate coated with a toning coating solution.

Next, the paint color matching method of the present invention in the color matching final step will be described.

The color adjustment up to the final color adjustment step is performed by a conventionally known method, for example, measurement / color adjustment using a color sample book and its paint composition table, computer color adjustment, and a measurement color adjustment system.

As a result of the above, a toning coating liquid having a color close to the desired color can be obtained. In the final step of toning, a coating plate (3) made of the toning coating liquid is first prepared, and this coating color and the desired coating color (coating color of the automobile door parts (4) to be repaired) are visually compared. Then, a primary color judgment sheet (1) which is expected to require further addition for a minute difference in coating color is selected from the judgment sheet set (2), and as shown in FIG. ) On the painted surface.

Next, the operation of comparing and observing the color of the overlapped portion and the desired coating color is repeated for each primary color, and the judgment sheet (1) having the same tint is selected. Then, a small amount of the primary color paint of the judgment sheet (1) is added to the toning coating liquid, and a coating plate (3 ') made from the toning coating liquid is prepared again. To see if

If they do not match, the above steps 1 to 3 can be repeated to correct the coating liquid. Thus, the toning of the desired paint color is completed.

It is obvious that the present invention can be used for various purposes, not limited to automobile repair.

[0018]

EFFECTS OF THE INVENTION According to the present invention, fine adjustment in the final step, especially in toning at the painting site of automobile repair paint,
Even if the coating color is metallic and difficult to match or the glittering feeling is different, it can be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a judgment sheet (1) of the present invention.

FIG. 2 is a schematic view of a determination sheet set (2) of the present invention.

FIG. 3 is a schematic view of a method of the present invention in which a judgment sheet (1) is laminated on a coated plate (3).

[Explanation of symbols]

 a transparent sheet b clear coat layer c color clear coat layer d continuous binding tool 1 determination sheet 2 determination sheet set 3 coating plate 4 automobile to be repaired (door parts)

Claims (3)

[Claims] 1. A sheet for determining a minor addition primary color in the final step of toning, which comprises forming a clear coat layer on a transparent sheet and diluting a toning primary color paint on the surface to form a color clear coat layer. 2. A sheet set for determining a small amount of primary colors in the final step of toning, which is a combination of the determination sheets according to claim 1 for various primary colors. 3. In the final step of toning, comparing the coating color of the coating plate with the toning coating liquid with the desired coating color, and requesting various primary colors that are expected to require further addition for a minute difference in coating color. The determination sheet according to Item 1 is sequentially stacked on the coating surface of the coating plate, and the work of comparing the color of the overlapped portion with the desired coating color is repeated, and the determination sheet having the same tint is selected. Add a small amount of the primary color paint for the sheet to the toning coating liquid, and again compare the coating color of the coating plate with the toning coating liquid with the desired coating color to confirm the match. If they do not match, repeat steps 1 to 3 above. A paint toning method that consists of simple steps and allows fine adjustment of toning easily.