JPS63194773A - Partial painting method - Google Patents

Abstract

PURPOSE:To reduce the number of component and time required for masking, by sticking a tape on a work with a whole surface painted with a principal color along the parting line, and dipping the surface not to be partially painted in a soln. to form a painting preventing film. CONSTITUTION:A principal color is painted on the whole surface of the work 1 to be partially painted, and an application tape 7 is stuck on the surface of the work 1 along the parting line 5. The work 1 is dipped in the soln. 9 for forming a painting preventing film to the parting line 5 to form a painting preventing film 8 on the surface of the work 1 not to be partially painted. The succeeding color 4 is painted on the surface to be partially painted, and the painting preventing film 8 and the tape 7 are successively released from the surface not to be partially painted. As a result, the infiltration of mists can be surely controlled in the partial painting, and the number of components and time required for masking can be remarkably reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for painting the surface of a workpiece with one, two or more colors.

(Prior art) In order to apply two-color coating to the surface of a workpiece such as a motorcycle cowling, as shown in Fig. 2, the main color a is first applied to the entire surface of the cowling body W, and Next, apply the application tape d along the boundary line C where separate painting is to be applied, paste masking paper e% on the surface that does not require rough separate painting, and secure the periphery with press tape f. So, I decided to paint the second color separately.

However, with this type of separate painting method, there are cases where there is a step on the second color painting boundary line C, or when the pressure tape F is
If the tape is not adhered sufficiently (this is the case when the presser tape
The paint mist of the second color enters through the gap and adheres to the main color a side, resulting in the inconvenience that it takes a lot of manpower and time to wipe it off.

(Purpose) The present invention was made in view of these inconveniences, and its purpose is to propose a new method of separate painting that is simple and does not cause mist adhesion during separate painting. .

(Means for Achieving the Object) That is, the present invention provides a method for dividing the painting to achieve the above object, in which the main color is first applied to the entire surface of the workpiece to be subjected to the dividing painting, and then the dividing line is coated with the main color. After applying tape to the surface of the workpiece along the line, the workpiece is immersed in a liquid for forming a paint prevention film up to the separation line to form a paint prevention film on the surface that does not require separation painting, and then painted. The next color coating is applied to the separately painted surface, and finally the paint prevention film and tape are peeled off in order from the surface that does not require separate painting. (Examples) Therefore, details of the present invention will be explained below based on Examples.

Figure 1 shows the process of separate painting, which is an embodiment of the present invention applied to the cowling of a motorcycle. First, the main color paint 2 is applied to the entire surface of the cowling body 1 and dried (a ).

Next, an application tape 7 is attached to the cowling body 1 along the boundary line 5 of the surface 4 to be painted with the second color (b).

The cowling body 1 that has gone through this process is then put into a paint container with adjustable water level ] O The stored split paint 9
A paint-preventing film 8 is formed on the surface 6 that does not require second-color painting (C). This split paint 9 is made of a paint emulsion in which oil, oil varnish, alkyd resin, etc. are dispersed in water using an emulsifier, or a coating film-forming component is synthetic latex produced by milk polymerization. This split paint 9 with viscosity adjustment
The water level is accurately adjusted in the paint container 8,
By dipping the cowling body 1 in this, the split paint 9 is applied to the surface 6 that does not require the second color painting, and by roughly drying it, a paint-preventing film 8 is formed on this part, and at the same time, If this immersion leaves a portion 6' where the split paint 9 does not adhere, that is, a portion 6' that is exposed above the liquid, use a spatula or the like to remove this portion 6' during the process of forming the paint-preventing film. Apply Split Paint 9 to the surface and let it dry.

Then, the second color paint 3 is applied to the surface 4 of the cowling body 1 which has undergone this treatment and is to be painted with the second color. e), and finally apply the application tape 7.
(f) Finish all steps.

Although the present invention has been explained above based on an example of cowling painting of a motorcycle, the present invention can also be applied to various other works that require separate painting. , it can also be applied to those in which two or more colors are applied separately.

(Effects) As described above, according to the present invention, tape is pasted along the dividing line to a workpiece whose entire surface has been painted in the main color, and then the surfaces that do not require separate painting are painted. Since we formed a paint prevention film on this part by immersing it in a liquid for forming a prevention film, it is possible to form a paint prevention film that completely adheres to the underlying surface of the workpiece by simply crushing the gutter. This makes it possible to reliably suppress the intrusion of mist during separate painting, and to significantly reduce the materials and time required for masking.

[Brief explanation of the drawing]

Figures 1 (a) to (f) are diagrams showing a separate painting process according to an embodiment of the present invention together with a schematic diagram, and Figure 2 (a)
1 shows a conventional separate painting method, in which FIG. 3(b) is a cross-sectional view taken along line XX, and FIG. 1(c) is a schematic diagram thereof. 1... Cowling body 2... Main color 3.
... Second color paint 7 ... Application tape 8 ... Paint prevention film 9 ... Split paint

Claims (1)

[Claims] A step of painting the main color on the entire surface of the workpiece to be painted separately, a step of pasting tape on the surface of the workpiece along the dividing line, and a step of placing the workpiece in a liquid for forming a paint-preventing film. A step of immersing the workpiece up to the separation line to form a paint prevention film on the surface of the workpiece that does not require separation painting, a step of applying the next color coating to the separation painted surface, and a step from the above-mentioned surface that does not require separation painting. A separate painting method comprising the steps of sequentially peeling off the above-mentioned paint prevention film and the above-mentioned tape.