JP2021171699A - Coating method - Google Patents

Abstract

To provide a coating method capable of transferring a clear design onto a coating surface by using a roller main body provided with a rugged pile layer on an outer circumferential surface.SOLUTION: A step of immersing a roller main body 4 formed of a transfer design which is formed with recessed parts 6a formed by cutting or thermo-fusing nap of a pile layer 6 and protruded parts 6b composed of portions other than the recessed parts 6a to allow coating material to be impregnated to the pile layer 6, a step of pushing the pile layer 6 against a squeezing face to adjust impregnation quantity of coating material and a step of rolling the roller main body 4 which contains coating material, onto a coating surface 7 to perform coating are practiced. Therein, when the roller main body 4 is rolled onto the coating surface 7 to perform coating, a pushing pressure F which keeps relative differences of heights Hb, Ha of the protruded part 6b and the recessed part 6a is actuated onto the roller main body 4 and only the design 8 formed by the protruded part 6b is transferred onto the coating face 7.SELECTED DRAWING: Figure 2

Description

The present invention relates to a coating method for transferring a pattern onto a coated surface.

Conventionally, as a coating roller that transfers a concave-convex shape pattern formed on the outer peripheral surface of the coating roller body to the coating surface, for example, the one shown in Patent Document 1 is known.
In the coating roller shown in Patent Document 1, the roller body is press-fitted into the tubular member, and the pile layer is projected from the through hole formed in the tubular member. If the roller body is attached to the inside of the paint and the paint is impregnated in the roller body, the portion of the pile layer protruding from the through hole can be painted as a pattern.
However, the coating roller has poor workability because the tubular member must be attached to and detached from the roller body.

As a solution to the above problems, a coating roller that does not require attachment / detachment of the tubular member can be considered.
For example, the hair of the pile layer provided on the entire circumference of the roller body is cut or heat-melted to form a short concave portion of the hair, and the portion other than this concave portion is made a convex portion, and the entire circumference is uneven. It is possible to form a pattern.
When such a coating roller is used, the roller body is impregnated with paint, the roller body is rolled on the coating surface, and the pattern corresponding to the convex portion is transferred to the coating surface.

Japanese Patent No. 5905632

As described above, since the above-mentioned coating roller in which the length of the hair is lengthened to form irregularities on the pile layer does not use a tubular member, the pile layer is completely exposed. Therefore, when it is applied to the paint, it is easily considered that the paint adheres to the entire pile layer and also permeates the inside.

When such a roller is pressed strongly against the painted surface with an unnecessarily strong force, the convex portion of the pile layer is crushed and the convex portion and the concave portion cannot be distinguished. If the convex portion is at the same level as the concave portion, not only the convex portion but also the paint on the concave portion will come into contact with the painted surface.
If even the concave portion is in contact with the painted surface in this way, the paint adheres to the entire surface of the painted surface, and the pattern corresponding to the convex portion becomes unclear.
Further, when a strong pressing force is applied to the roller body so that the unevenness cannot be distinguished, the paint contained in the pile layer may be extruded at once and dripping may occur.

And, in the past, in order not to apply more force than necessary to the roller body, it was necessary to rely on the intuition of each worker, so the appropriate pressing force was logically transmitted or taught. Couldn't.
An object of the present invention is to use a roller body having irregularities formed by cutting or melting the hair of the pile layer by logically analyzing the pressing force at the time of painting without relying on intuition. It is to provide a painting method that can be communicated and taught to workers so that a clear pattern can be transferred to the painted surface.

In the coating method of the present invention, a roller is provided on the entire circumference, and the hair of the pile layer is partially processed to form a concave portion, and a transfer pattern is formed by a convex portion formed of a portion other than the concave portion. A step of immersing the roller body in the paint to impregnate the pile layer with the paint, a step of pressing the pile layer against the ironing surface to adjust the amount of the paint impregnated, and a step of adjusting the amount of the paint impregnated, and the roller body containing the paint. Perform the steps of rolling and painting on the painted surface.
Then, the roller main body maintains the hardness or length of the pile layer in which the difference in height between the convex portion and the concave portion is maintained when the pressing force F acts in the painting step, and the roller main body. Is applied to the roller body by applying a pressing force F that maintains a relative difference in height between the convex portion and the concave portion, so that only the pattern formed by the convex portion is formed. It is characterized by being transferred to the painted surface.

Keeping the relative difference in height between the convex portion and the concave portion means that the height of the convex portion is larger than the height of the concave portion, and the difference is significantly different. At the time of painting, the height of the convex portion does not change at all, and the difference between the height of the convex portion and the height of the concave portion does not have to be kept strictly constant. In the present invention, even if the height of the convex portion changes due to the pressing force F during painting, the difference from the height of the concave portion is clear, and the paint impregnated or adhered to the concave portion does not adhere to the painted surface. It is assumed that the above relative difference is maintained.

In the present invention, when the operator rolls the roller body onto the painted surface, the pressing force F against the painted surface is controlled so that the relative difference in height between the convex portion and the concave portion of the pile layer can be maintained. Therefore, it is possible to prevent the paint in the recess from adhering to the painted surface. Therefore, if the operator controls the pressing force F while observing the height of the unevenness of the pile layer, only the pattern corresponding to the convex portion can be transferred to the painted surface to create a clear pattern.
Further, since the operator does not increase the pressing force F of the roller body, the paint contained in the pile layer is not pushed out at once and causes dripping.

It is external perspective view of the roller body used for the coating method of this invention. It shows the state during painting and corresponds to the cross-sectional view taken along line II-II in FIG. This is an example of a pattern that is transferred to the painted surface.

An embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the coating roller 1 used in the coating method of the present invention is configured by fixing a support metal fitting 3 to a handle 2 and rotatably attaching a roller body 4 to the support metal fitting 3.
The roller body 4 is composed of a substantially cylindrical core material 5 into which the support metal fitting 3 is inserted and serves as a rotation axis, and a pile layer 6 having an uneven shape on the surface provided on the outer periphery thereof.

The pile layer 6 covers the entire outer peripheral surface of the core material 5, and includes a concave portion 6a formed by shortening the bristles of the pile layer 6 and a convex portion 6b formed of a portion other than the concave portion 6a. A plurality of convex portions 6b are formed in various shapes such as a substantially elliptical shape and an indeterminate shape so that the pattern transferred to the painted surface becomes a assumed pattern.
In such a pile layer 6, the height of the concave portion 6a is Ha, the height of the convex portion is Hb, and the height is Hb higher than the height Ha, based on the surface of the core material 5. Is made larger (see Fig. 2).
The unevenness formed by the concave portion 6a and the convex portion 6b is the transfer pattern of the present invention formed on the pile layer 6.

In the concave portion 6a of the pile layer 6, the hair of the pile layer 6 provided with a constant thickness corresponding to the height Hb of the convex portion 6b is partially cut with a cutting tool, or the hair tips are heat-melted. It is a part formed by processing and processing.
Further, although the pile layer 6 is formed by using synthetic resin hair, the thickness of the pile layer 6 is determined by the length and weave of the hair, and the hardness of the pile layer 6 is determined by the material and weave of the hair. Is decided.

The height Hb of the convex portion 6b in a state where the pressing force is not applied to the roller main body 4 is not particularly limited, but for example, about 5 [mm] to 15 [mm] is realistic, and the concave portion 6a has a height Hb. The height Ha is processed in a range from about 0 [mm] to a range smaller than the above height Hb.
Further, in this embodiment, when the roller body 4 is pressed against the painted surface with a predetermined pressing force F, the difference between the height Ha of the concave portion 6a and the height Hb of the convex portion 6b is maintained. The thickness and hardness of the pile layer 6 are set.

The procedure for the operator to transfer the pattern 8 (see FIG. 3) to the painted surface 7 by using the coating roller 1 as described above will be described below.
First, the operator immerses the roller body 4 in the paint in the container to impregnate the entire pile layer 6 with the paint.
Next, the operator presses the roller body 4 against a squeezing surface such as the side wall surface of the container to squeeze the pile layer 6, extrudes excess paint, and adjusts the amount of the paint impregnated into the pile layer 6 to an appropriate amount. The appropriate amount of the paint is an amount at which a large amount of paint does not drip from the roller body 4 after the pile layer 6 is squeezed.

Further, as shown in FIG. 2, the operator brings the pile layer 6 containing the paint into contact with the painted surface 7 and moves the roller body 4 in the x direction of the arrow while rolling it. At this time, the operator applies a pressing force F acting on the painted surface 7 (see FIG. 2) so as to maintain a relative difference between the height Hb of the convex portion 6b and the height Ha of the concave portion 6a in contact with the painted surface 7. To control. If such a pressing force F is held, the roller body 4 rolls on the painted surface 7 in a state where the convex portion 6b of the pile layer 6 is in light contact with the painted surface 7.

When the roller body 4 is rolled on the painted surface 7, if the relative difference in height between the concave portion 6a and the convex portion 6b is maintained, only the convex portion 6b of the pile layer 6 comes into contact with the painted surface 7. The recess 6a does not come into contact with the painted surface 7.
Therefore, the pattern 8 is transferred to the painted surface 7 by the paint impregnated or adhered to the convex portion 6b. The pattern 8 transferred to the painted surface 7 shown in FIG. 3 becomes a clear pattern corresponding to the shape of the tip surface of the convex portion 6b.

In this embodiment, maintaining the relative difference between the height Ha and the height Hb means that the height Hb of the convex portion 6b is larger than the height Ha of the concave portion 6a, and there is a significant difference in the difference. It's about keeping a relationship. The height Hb does not change at all, and the difference from the height Ha (Hb-Ha) does not have to be kept constant in a strict sense. Even if the convex portion 6b pressed against the painted surface 7 is crushed and the height Hb changes slightly during painting, the difference between the height Hb and the height Ha of the concave portion 6a is clear, and the concave portion 6a is impregnated or impregnated. As long as the adhered paint does not adhere to the painted surface 7, the relative difference in the present invention is maintained.

If the pressing force F during painting is too large and the height Hb of the convex portion 6b becomes the same level as the height Ha of the concave portion 6a, the paint of the concave portion 6a adheres to the painted surface 7. Then, the pattern corresponding to the convex portion 6b becomes unclear. However, such a problem does not occur in this embodiment.
Further, if the pressing force F is such that the height difference between the concave portion 6a and the convex portion 6b is maintained, the paint contained in the pile layer 6 may be extruded at once and cause dripping on the painted surface. No.
In this way, if the operator controls the pressing force F so as to maintain the difference in height, any operator can transfer a clear pattern in the same manner.
Then, the pressing force F can be adjusted while observing the degree of crushing of the convex portion 6b in contact with the painted surface 7.

Further, in the coating roller 1, the height Hb of the convex portion 6b and the height Ha of the concave portion 6a are determined depending on the thickness of the pile layer 6 before cutting or heat melting the hair, the method of cutting or heat melting, and the like. It can be of various sizes. That is, in this embodiment, it is possible to give various variations to the steps of the heights Ha and Hb of the uneven portion in the pile layer 6. In particular, when the pile layer 6 has a large uneven step, the tip of the convex portion 6b can reach the concave portion of the painted surface without contacting the concave portion 6a with the painted surface, so that the uneven painted surface is also clear. Pattern can be transferred.

For example, in the case of a painted roller in which the roller body is press-fitted into the cylinder member to form a convex portion containing paint, the outer diameter of the roller body that can be press-fitted is determined by the inner diameter of the cylinder member. Therefore, there is no degree of freedom in the height of the convex portion protruding from the through hole provided in the tubular member, and it is difficult to form a convex portion having a high height. If the height of the convex portion is low, the dent on the painted surface may not be patterned and the transferred pattern may be interrupted.
However, if there is a variation in the uneven step of the pile layer 6 as described above, the roller body 4 is selected according to the surface condition of the painted surface, and a clear pattern is transferred to any painted surface. be able to.

The present invention is useful when repeatedly transferring a pattern to a wall surface or the like.

1 Painting roller 4 Roller body 6 Pile layer 6a Concave part 6b Convex part 7 Painted surface 8 (Paint) Pattern Ha (Concave part) Height Hb (Convex part) Height F Pressing pressure

Claims (1)

A roller body is provided on the entire circumference, and a roller body is provided in which the hair of the pile layer is partially processed to form a concave portion and a transfer pattern is formed with a convex portion formed of a portion other than the concave portion.
The step of immersing the roller body in the paint and impregnating the pile layer with the paint,
The step of pressing the pile layer against the ironing surface to adjust the amount of paint impregnation, and
While performing the steps of rolling the roller body containing the paint onto the painted surface and painting it,
The roller body retains the hardness or height of the pile layer in which the difference in height between the convex portion and the concave portion is maintained when the pressing force F acts during the coating.
When rolling the roller body onto the painted surface for painting
A coating method in which a pressing force F for maintaining a relative difference in height between the convex portion and the concave portion is applied to the roller body to transfer only the pattern formed by the convex portion to the coated surface.

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