JP2914212B2 - Painting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of applying various kinds of multicolor paints to building materials such as doors, walls, floors and the like. By using a material, the boundary between the first region to which one selected paint is applied and the second region other than the first region can be easily and accurately cut off, and the quality of the finish is improved. is there.

[0002]

2. Description of the Related Art Conventionally, as this kind of coating method, FIG.
To FIG. 12 are known. In this coating method, first, as shown in FIG. 8, a coating material A is applied to the surface of a base material 1 such as a wooden door material, and then, as shown in FIG. A groove 7 is formed at the boundary between the first area 3 to be applied and the second area 5 not to be coated with the paint B by using a hand router or the like to form a groove 7, and then along the groove 7 as shown in FIG. After covering the second area 5 by applying a masking tape 9 such as a paper tape or a polypropylene tape, the paint B is applied on the base material 1 as shown in FIG. 11, and then as shown in FIG. Then, the masking tape 9 is peeled from the substrate 1. However, in the conventional coating method, the work of attaching the masking tape 9 along the groove 7 has to be carefully performed in order to obtain the accuracy, so that it takes time, and the masking work after the stitching is performed. However, there is a problem that the appearance after coating is poor because the masking tape 9 tends to be unevenly applied.

Therefore, in order to improve such a problem,
After the coating material A is applied to the surface of the base material 1 in the same manner as described above, the masking tape 9 is applied on the base material 1 as shown in FIG. After covering the masking tape 9, a groove 7 is formed by scribing the boundary between the first region 3 and the second region 5 from above the masking tape 9, and then, as shown in FIG. A method in which the unnecessary portion 9a of the masking tape 9 located outside is peeled off, and then the paint B is applied on the substrate 1 in the same manner as described above, and then the masking tape 9 is peeled from the substrate 1 Is considered. However, in this coating method, the edge of the masking tape 9 is turned up or melted when a streak is performed using a router or the like after the masking, so that the vicinity of the boundary between the first region 3 and the second region 5 is particularly large. However, there is a problem that coating defects are likely to occur, and thus the appearance after completion of coating is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and makes it easy to cut off a boundary between a first region to which one selected paint is applied and a second region other than the first region. It is an object of the present invention to provide a coating method capable of accurately performing the finishing and improving the finishing quality.

[0005]

According to a first aspect of the present invention, there is provided a coating method for coating one or more colors of a coating material on a substrate, wherein the coating method is applied to a substrate other than the first region to which one selected coating material is applied. After attaching and covering a masking material having an adhesive layer formed on one surface of a high melting point resin sheet having a melting point of 160 ° C. or more to the second region and the first region located near the second region, the masking is performed. The boundary between the first area where the one selected paint is applied from the material and the second area other than the first area
Is cut together with the base material, and thereafter, the unnecessary portion of the masking material is separated from the base material, and then the one selected paint is applied on the base material, and then the masking material is separated from the base material. It is characterized by doing. The coating method according to claim 2 is the coating method according to claim 1, wherein the high melting point resin sheet constituting the masking material is:
Polyvinyl chloride, polystyrene terephthalate, polya
A resin selected from the group consisting of
It is characterized by that.

[0006]

According to the coating method of the present invention, the melting point is not higher than 160 ° C.
By using a masking material on one surface of the refractory resin sheet above by forming a pressure-sensitive adhesive layer, when performing cutting, such as streaks engraved by using a hand router after masking, the melting point of the high melting point resin sheet However, since the melting point of the masking material is higher than the melting point of the conventional masking tape, the heat resistance of the masking material is sufficient, so that the end of the masking material can be prevented from being turned up or melted by frictional heat generated between the router and the masking material. Also, since the sheet forming the masking material is not made of fibers,
There is no fluff like a paper tape used conventionally.

[0007]

EXAMPLES In order to make the present invention easier to understand,
An example will be described. These examples illustrate one embodiment of the present invention and do not limit the present invention. It can be arbitrarily changed within the scope of the present invention.

FIGS. 1 to 7 show an embodiment in which the coating method of the present invention is applied to a door material coating method in the order of steps. First, as shown in FIG. 1, an undercoating paint C is applied to the surface of the substrate 11 so as to have a thickness of about 50 to 400 μm, and a D-colored paint D having a thickness of 10 to 400 μm is further applied thereon for intermediate coating. It is applied so as to have a thickness of about 100 μm. As the base material 11 here, any material can be used as long as it can be painted. For example, a backing material such as a nonwoven fabric is backed on a decorative veneer made of a board with natural wood or a board with artificial wood. Wood or decorative veneer, lauan plywood, particle board, etc., which are made by bonding a veneer or veneer veneer to a wooden board, plywood, wood cement board, etc .; resin based material such as fiber reinforced synthetic resin board; or aluminum board And a metal-based material such as a stainless steel plate. Further, as the undercoat paint C, a polyurethane resin, a polyester resin, an acrylic resin, a mixture thereof, or the like is suitably used. As the paint D, a polyurethane resin, a polyester resin, an acrylic resin, or a mixture of these and a colorant to obtain a D color is used. The method for applying the paint here is not particularly limited, but a roll coater, a spin coater, a flow coater, an electrostatic spray or a brush coating method is preferably used.

Next, as shown in FIG.
2 on the base material 11, a second area 15 (area other than the first area 13 to which the paint E is applied) 15 where the paint E of the color E different from the paint D is not applied, and a peripheral area of the second area 15. The coating is applied so as to cover the first area 13 to which the paint E is applied. Here, reference numeral 16 in the drawing denotes a boundary between the first area 13 and the second area 15. The masking material 12 is a film formed by forming an adhesive layer on one surface of a high melting point resin sheet. The high melting point resin forming the masking material sheet has a melting point of 160 ° C. or more, preferably 170 to 1
80 ° C. is used. If the melting point of the high melting point resin forming the sheet is lower than 160 ° C., there is a disadvantage that the sheet is melted and melted and the cut surface becomes undesired at the time of streaking using a router or the like. As the high melting point resin forming the sheet of the masking material 12, specifically, one selected from polyvinyl chloride, polyethylene terephthalate, and polyamide-based resin is preferably used, and among them, polyvinyl chloride is particularly preferable. preferable. Examples of the material forming the adhesive layer include a main material such as an acrylic resin, polyisobutylene, natural rubber, and styrene-butadiene rubber, a tackifier such as rosin, coumarone, and a polyterpene resin; a phthalic acid ester; A mixture of a plasticizer such as oil, mineral oil, lanolin, and liquid polybutene is used. Preferably, a mixture mainly composed of an acrylic ester and copolymerized with acrylic acid is used.

The thickness of the masking material 12 is about 50 to 500 μm, more preferably 70 to 15 μm.
It is about 0 μm. The thickness of the masking material 12 is 50μ.
If it is less than 5 m, it may be too thin to cause inconvenience such as tearing during cutting such as streaking.
This is because even if the thickness exceeds 00 μm, the effect cannot be expected to increase anymore and the cost increases. When sticking such a masking material 12, the adhesive layer side is brought into contact with the paint D on the substrate 11.

Next, as shown in FIG.
After forming a through-hole 17 for fitting a glass plate or the like to the base material 11 from above the groove 2, the boundary 16 between the first region 13 and the second region 15 is further engraved from above the masking material 12 to form a groove. 18 are formed. The streaking here can be performed using an NC router, a hand router, a trimmer, or the like. Next, as shown in FIG. 4, the unnecessary portion 12 a of the masking material 12 located outside the boundary 16 is separated from the base material 11. By doing so, the second region 15 where the paint E is not applied is shielded by the masking material 12.

Next, as shown in FIG. 5, a paint E of a color different from the paint D is applied on the base material 1 by brushing, a roll coater, a spin coater, or the like so as to have a thickness of about 10 to 100 μm. Apply to. As the paint E used herein, a polyurethane resin, a polyester resin, an acrylic resin, or a mixture of these with a colorant to obtain a color E different from the color D is used. . After this, FIG.
When the masking material 12 is peeled off from the base material 1 as shown in FIG. 1, a door 20 is obtained in which the first region 13 is painted in the color E and the second region 15 is painted in the color D.

Finally, as shown in FIG.
Brushing a transparent or translucent paint F for top coating on the surface of
By coating so as to have a thickness of about 100 μm, a desired product can be obtained. As the coating material F, a polyurethane resin, a polyester resin, an acrylic resin, a fluororesin, or a mixture thereof is used, but any other transparent or translucent resin may be used.

In the coating method of the above embodiment, the masking material 12 having an adhesive layer formed on one surface of a high-melting-point resin sheet is used to perform the engraving using a hand router or the like after masking. Since the melting point of the high melting point resin sheet is higher than the melting point of the conventional masking tape, the heat resistance of the masking material becomes sufficient. Curling and melting can be reduced, and since the sheet forming the masking material 12 is not made of fiber, it does not fluff unlike a conventionally used paper tape. The boundary 16 between the first region 15 and the second region 15 can be easily and accurately separated, so that the occurrence of defective coating near the boundary 16 is reduced. Can, therefore appearance after painting completion will be good, finish quality is improved. In particular, when polyvinyl chloride is used as the high melting point resin forming the sheet of the masking material 12, the melting point of the polyvinyl chloride sheet is as high as about 170 ° C., so that the conventional polypropylene tape (melting point of about 130 to 150 ° C.) Compared to the case of using the method, when the streaking is performed using a hand router or the like after masking, the end of the masking material 12 is turned up or melted due to frictional heat generated between the router or the like and the masking material 12. And the appearance after painting is excellent. In the above embodiment,
The case where two-color coating is applied on the base material 11 has been described. However, the case where one type or one color coating is selectively applied on the base material 11 or the case where various types and multi-color coatings are applied on the base material 11 However, there is a similar effect.

As described above, in the coating method of the present invention, by using a masking material in which an adhesive layer is formed on one surface of a high melting point resin sheet having a melting point of 160 ° C. or higher, a hand router or the like can be used after masking. When performing a cutting process such as a line engraving using a high melting point resin sheet, the melting point of the high melting point resin is high, so that the heat resistance of the masking material is sufficient. It is possible to reduce the curling or melting of the end of the sheet, and since the sheet constituting the masking material is not made of fiber, it does not fluff like a conventionally used paper tape, so that Since the boundary between the first area to which the selected paint is applied and the second area other than the first area can be easily and accurately determined, it is difficult to apply the coating near the boundary. Can reduce that to occur, thus appearance after painting completion will be good, finish quality is improved.

[Brief description of the drawings]

FIG. 1 is a view for explaining one embodiment of a coating method of the present invention, in which (A) is a perspective view and (B) is a cross-sectional view along line VIII-VIII.

FIG. 2 is a view for explaining an embodiment of the coating method of the present invention, in which (A) is a perspective view and (B) is a cross-sectional view along the line Ix-Ix.

3A and 3B are views for explaining one embodiment of the coating method of the present invention, in which FIG. 3A is a perspective view, and FIG. 3B is a cross-sectional view along line xx.

FIG. 4 is a view for explaining one embodiment of the coating method of the present invention, in which (A) is a perspective view and (B) is a cross-sectional view along the xI-xI line.

FIG. 5 is a view for explaining an embodiment of the coating method of the present invention, in which (A) is a perspective view and (B) is a cross-sectional view along the line xII-xII.

FIG. 6 is a view for explaining an embodiment of the coating method of the present invention, in which (A) is a perspective view and (B) is a cross-sectional view along the line xIII-xIII.

FIG. 7 is a cross-sectional view for explaining one embodiment of the coating method of the present invention.

8A and 8B are views for explaining an example of a conventional coating method, in which FIG. 8A is a perspective view and FIG. 8B is a cross-sectional view taken along line II.

FIG. 9 is a view for explaining an example of a conventional coating method, in which (A) is a perspective view and (B) is a cross-sectional view along the line II-II.

FIG. 10 is a view for explaining an example of a conventional coating method, in which (A) is a perspective view and (B) is a cross-sectional view along the line III-III.

11A and 11B are views for explaining an example of a conventional coating method, in which FIG. 11A is a perspective view and FIG. 11B is a cross-sectional view taken along line IV-IV.

FIG. 12 is a view for explaining an example of a conventional coating method, in which (A) is a perspective view and (B) is a cross-sectional view along the line VV.

13A and 13B are views for explaining another example of the conventional coating method, in which FIG. 13A is a perspective view, and FIG. 13B is a cross-sectional view taken along line VI-VI.

14A and 14B are views for explaining another example of the conventional coating method, in which FIG. 14A is a perspective view, and FIG. 14B is a cross-sectional view taken along line VII-VII.

[Explanation of symbols]

11: base material, D: paint, 12: masking material, 12
a: unnecessary part, 13: first area, 15: second area,
16: border, E: paint.

Continuation of the front page (56) References JP-A-50-77505 (JP, A) JP-A-2-48077 (JP, A) JP-A-5-277407 (JP, A) JP-A-61-250082 (JP) JP-A-5-200337 (JP, A) JP-A-3-52672 (JP, A) JP-A-5-329410 (JP, A) JP-A-60-251954 (JP, A) 4-54855 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B05D 1/32 B05B 15/04 101 B05B 15/04 102 B05D 7/00

Claims (2)

(57) [Claims] 1. A method for applying one or more colors of paint on a substrate, wherein a second area other than the first area to which one selected paint is applied and a first area located near the second area. A masking material having a pressure-sensitive adhesive layer formed on one surface of a high-melting point resin sheet having a melting point of 160 ° C. or more , and covering the masking material, and then applying the one selected coating material on the masking material. Between the second area and the other area
Is cut together with the base material, and thereafter, the unnecessary portion of the masking material is separated from the base material, and then the one selected paint is applied on the base material, and then the masking material is separated from the base material. A coating method characterized by: 2. The high melting point resin sheet is made of polyvinyl chloride.
Le, poly et Ji terephthalate, polyamide resin
It is characterized by being composed of a kind selected from among them
The coating method according to claim 1, wherein