JPH10175400A - Method for marking metal surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for imparting a smooth and soft image to a marked overall surface by forming a mark easily identified by a significant evidence as a method for marking a metal surface. SOLUTION: This method for marking a metal surface comprises the steps of smoothly polishing the surface 1 to be marked, laminating a mold sheet 2 for constituting a character or a design in important parts, and spraying colored blasting material provided with a coating layer of colorants 31 on surfaces of abrasives 3a on the overall surface 1 including the sheet 3 laminated part. Thus, a non-laminated area of the sheet 2 is roughed and colored, the sheet 2 is released, a mark constituted by the smooth surface of the sheet released part is exposed on a surface, and the entire metal surface 1 is clear coated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking method for displaying marks such as characters and designs on the metal surface of various articles such as a metal head of a golf club.

[0002]

2. Description of the Related Art Conventionally, as a means for marking a pattern, a character, or the like for decoration or display on a metal surface, an electrolytic etching method using a potential difference, a chemical etching method using an acid, and a blast shotting method. , Engraving method and the like are adopted. However, in the marking by these, patterns and characters are only displayed due to the large steps of the uneven portion formed on the metal surface, and there is no color difference between the mark portion and the background portion and the contrast is weak, so the mark is less noticeable. However, depending on the viewing angle, the distance, the degree of light hit, etc., it is difficult to identify the mark, and the mark gives a hard image and the surface feel is poor.

[0003] In view of the above problems, the present invention provides a method for marking a metal surface, which is capable of forming a conspicuous and easily recognizable mark and giving a smooth and soft image to the entire marked surface. The purpose is to do.

[0004]

In order to achieve the above object, a method for marking a metal surface according to the first aspect of the present invention provides a method for marking a metal surface 1 to be marked, as indicated by reference numerals in the drawings. After polished smoothly and pasting a mold sheet 2 constituting characters, patterns, etc. at key points on the polished metal surface 1, the entire surface 1 including the mold sheet 2 attaching portion is
By spraying a colored blasting material 3 provided with a coating layer 3b of a coloring agent 31 on the surface of the abrasive grains 3a, the non-stick area of the mold sheet 2 is roughened and colored, and then the mold sheet 2
Is peeled off to expose marks M1 to M3 formed of a smooth surface of the sheet peeling portion, and further, clear coating is applied to the entire metal surface 1.

According to the present invention, when blasting is performed in a state where the mold sheet 2 is adhered to a key portion of the metal surface 1 polished smoothly, an area not covered by the mold sheet 2 is blasted. The surface of the blasting material 3 is transferred to the metal surface 1 where the coloring agent 31 which has coated the particle surface of the blasting material 3 is transferred to the metal surface 1 at the same time as the roughening. Because of the transferred colorant 31, the area is colored in a color different from that of the base metal. On the other hand, in the area where the mold sheet 2 is adhered, the polishing action of the blasting material 3 does not reach the metal surface 1 and, of course, the coloring agent 31
When the mold sheet 2 is peeled off, the marks M1 to M3 composed of the original smooth polished metal surface between the roughened matte-colored colored areas C are large. It will be expressed by color difference and contrast.

[0006] Since the entire metal surface 1 composed of the marks M1 to M3 thus exposed and the colored area C is covered with the transparent resin layer 4 by the next clear coating, the state of transfer of the coloring agents 31 in the colored area C is as follows. Is permanently fixed (fixed), and the smooth surfaces of the marks M1 to M3 are also protected. In this case, the coloring agents 31 in the coloring region C are beaten into the metal material by being beaten into the metal material, and the transparent resin layer 4 of the clear coating is also anchored by the unevenness of the roughened metal surface 1. Since it is firmly adhered to No. 1, it has much higher peel resistance as compared with a colored coating film made of a usual colored paint. In addition, the mark portion and the background portion only have a microscopic difference in surface roughness, and there are no large uneven steps. There is no difference in the feel of the parts, and the marks M1 to M3 give a smooth and soft impression.

According to a second aspect of the present invention, in the method for marking a metal surface according to the first aspect, the colored blast material 3 comprises:
The abrasive grains 3a having an average particle diameter of 50 to 1000 μm are coated with pigment particles 31 having an average particle diameter of 0.03 to 3 μm via a binder. In this case, the metal surface can be roughened and colored by blasting more efficiently.

According to the third aspect of the present invention, the first or second aspect is provided.
In the marking method of the metal surface of (1), a configuration is employed in which the spraying of the colored blast material 3 is performed by a suction type air blast method, and the blast material 3 itself is not pressurized and the suction action accompanying the compressed air flow near the nozzle. , The grinding force by blasting is not excessive, and the collision force is suitable for transferring the coloring agent 31 to the metal surface, and the metal surface is appropriately set as the background of the marks M1 to M3. It can be set to a rough surface state and high coloring efficiency.

According to a fourth aspect of the present invention, in the method for marking a metal surface according to any one of the first to third aspects, the polishing before attaching the sheet 2 employs a structure in which the metal surface 1 is made a mirror surface or a pearlescent surface. Therefore, the marks M1 to M3 are displayed with a beautiful metallic luster and emerge clearly with the matte satin-like colored area C as a background.

According to a fifth aspect of the present invention, in the method for marking a metal surface according to any one of the first to fourth aspects, the metal surface 1 to be marked is a metal head H surface of a golf club G. Therefore, the head H, which is constantly exposed to impact and rubbing with others during use,
Various characters and designs that enhance the design, or initials and one-point marks that are unique decorations unique to the owner can be easily provided in a form that does not easily disappear.

According to a sixth aspect of the present invention, in the method for marking a metal surface according to the fifth aspect, the metal head H is of an existing golf club G, and the coating film existing on the metal surface 1 before polishing. 4 is removed with a solvent.
A golf club with scratches or dirt on it can be reproduced as if it had been decorated with beautiful decorative marks M1 to M3 as new.

In the invention according to claim 7, the above-mentioned claims 1 to 1 are provided.
6. In the marking method for a metal surface according to any one of 6., since the mold sheet 2 adopts a configuration made of an adhesive sheet in which an adhesive layer 21 is provided on one surface of the base material 20, the marks M1 to M3 are formed. The required sticking operation of the mold sheet 2 can be easily performed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a marking method according to the present invention will be described with reference to the drawings, focusing on an embodiment applied when marking an initial, a one-point mark, a date, etc. on the surface of a metal head of a golf club. This will be described specifically.

FIG. 1 shows a commercially available wood golf club G having a metal head H connected and fixed to the lower end of a shaft S.
Is shown. Such a commercially available golf club G generally has a coating 6 made of a resin coating on the surface 1 of the metal head H as shown in FIG.
Is removed before the marking process. As a means for removing the coating film 6, a mechanical removal method such as blasting or polishing can be adopted. However, in order to avoid an imbalance in weight due to abrasion of the metal base material, dissolution and removal by immersion in a solvent. The method is preferred. As the solvent, a solvent in which the resin component of the coating film 6 is soluble and which does not corrode the base metal may be selected. However, in order to prevent the solvent from penetrating into the connection portion between the shaft S and the head H. Preferably, a vinyl tape or the like is wound around the connecting portion, and only the head H is immersed in a solvent for a required time.

The metal surface 1 of the head H after the coating film 6 has been removed and washed with water is generally insufficient in smoothness as shown in FIG. In many cases, a film is formed.
As shown in (A), the surface is smoothed, and preferably a smooth surface 10 such as a mirror surface or a pearlescent surface is finished. As this polishing means, various mechanical polishing methods such as buff polishing, barrel polishing, and brush polishing can be adopted, but usually, a plurality of types of polishing devices are used to gradually increase the degree of smoothness from rough polishing to finish polishing. Elevation techniques are employed. In order to obtain a mirror surface, for example, permanent-type vibration polishing is adopted as the final finish polishing, and the surface roughness is set to a JIS B 0659 classification value of 0.4.
It is better to set it to μ-S or less. In addition, in order to obtain a pearlescent surface, hairline polishing is also adopted and the surface roughness is set to JI.
It is preferable to set the classification value of SB0659 to 0.4 μ-S or more.

On the upper surface side of the head H thus polished and polished smoothly, a marking mold sheet 2, for example, an initial alphabet (A.T) 2a, a one-point mark (bird shape, △) 2b shown in FIG. Numbers (1996.11)
A desired mark form such as 2c is attached to a desired position. As the mold sheet 2 (2a to 2c), FIG.
As shown in (B), a pressure-sensitive adhesive sheet in which a pressure-sensitive adhesive layer 21 is provided on one side of a base material 20 made of aluminum foil, stainless steel foil, paper, vinyl sheet or the like having a thickness of about 0.2 to 0.3 mm is preferable. Used for In addition, such an adhesive sheet is generally applied with an adhesive on the surface of a release paper (not shown) coated with a release agent such as silicone oil or fluorine oil,
It is supplied as a laminated sheet in a form in which the base material 20 is laminated on the adhesive layer 21, and the laminated sheet is cut into a required mark form, peeled from release paper, and utilizing the adhesive force of the adhesive layer 21. It is attached to the metal surface 1 of the head H.

Next, as shown in FIG. 3, a blasting device 5 is provided on the entire surface of the head H to which the mold sheets 2 (2a to 2c) are attached.
Are sprayed from the nozzles 5a to roughen and color areas not covered by the mold sheet 2. This colored blast material 3 is shown in FIG.
The coating layer 3 of the coloring agent 31 on the surface of the abrasive grains 3a as shown in FIG.
b, which exerts a grinding action when the base metal of the head H collides with the exposed area 11 and reflects and diffuses, roughens the metal surface to form a matte satin finish. At the same time, the coloring agents 31 constituting the coating layer 3b on the surface of the particles are transferred to the metal surface side against which the colorants 31 strike. To color. However, as shown in FIG.
In the pasting region 1b of the mold sheet 2, the mold sheet 2 is masked, so that the metal surface 1 is not affected by the grinding action of the blast material 3, and the original polished smooth surface 10 is maintained.

Examples of the abrasive grains 3a of the colored blast material 3 include various natural and synthetic hard inorganic particles conventionally used in polishing materials, for example, silica, alundum, white alundum, emery, zircon, and carboxy. In addition to particles such as random, green carborundum, and garnet, metal-based, resin-based, and glass-based particles used in shot materials are included, and appropriate hardness depending on the type of metal material to be blasted from these. What is necessary is just to select the thing, the size is 50-1000 micrometers as an average particle diameter.
The degree is preferred.

The coloring material 31 constituting the coating layer 3b of the coloring blasting material 3 is preferably a pigment powder having an average particle diameter of about 0.03 to 3 μm, and its color is red, blue, machine, brown,
Various colors such as green, black, white, and pink can be selected, and various intermediate colors can be produced by using two or more colors in combination. The means for forming the coating layer 3b is not particularly limited, but may be simply applied to the surface of the abrasive grains 3a via an inorganic or organic binder. Incidentally, such a colored blast material 3 is disclosed in
No. 46770 discloses a detailed disclosure.

The blast mechanism of the blast device 5 includes:
A direct pressure air blast method, a suction air blast method, a centrifugal blast method, or the like can be employed, but a suction air blast method is particularly preferable. That is, in the suction air blast method, as shown in FIG. 3, a blast material introduction pipe 52 is branched and connected to a compressed air injection pipe 51 which is linearly connected to the nozzle 5a, and the blast material 3 itself is pressurized. The blast materials 3 are drawn out by the suction action caused by the compressed air flow near the nozzle 5a, so that the grinding force does not become excessive and is suitable for transferring the colorants 31 to the metal surface. A collision force is generated, and the metal surface can be set to an appropriate rough surface state and high coloring efficiency. The compressed air pressure in this case is 1 to
It is preferred to be about 4 kg / cm ² .

After the colored blasting material 3 is sprayed on the surface of the head H as described above, as shown in FIG.
2c is peeled off. As a result, the surface of the head H is
As shown in FIG. 8 (D), the original polished smooth surface 10, ie, a mirror or pearlescent surface, is provided between the matte pear-skin colored regions 11 roughened by spraying the colored blast materials 3. As a result, the marks M1 to M3 appear so as to shine with a larger color difference and contrast than the colored area C.

Thus, from the surface of the metal body G, the mold sheet 2a
The surface 1 of the head H from which .about.2c has been peeled off is preferably subjected to degreasing and cleaning, and then the entire surface is subjected to a clear coating and covered with a transparent resin layer 4 as shown in FIG. This clear coating may be performed by applying a transparent resin paint to the surface 1 of the head H by a suitable coating means such as spray coating, and curing the coating by heating, drying or baking. It is set to about 10 to 20 μm. The transparent resin coating is not particularly limited as long as it can form a tough transparent coating film, and various organic and inorganic coatings can be used.

By this clear coating, the marks M1 to M
3 and a metal surface 1 comprising a colored region 11
Are entirely covered with the transparent resin layer 4, so that the transfer state of the coloring agents 31 in the coloring region 11 is permanently fixed (fixed).
In addition, the smooth surfaces of the marks M1 to M3 are protected.
The coloring agent 31 in the coloring region 11 is beaten into the metal material by being beaten into the metal material, and the transparent resin layer 4 of the clear coating is also anchored by the unevenness of the coloring region 11 having a roughened surface. Since it is firmly adhered to the coating film, it has remarkably high peeling resistance as compared with a colored coating film using a normal coloring paint. Moreover, since the mark portion and the background portion only have a microscopic difference in surface roughness and do not have large unevenness, even if the transparent resin layer 4 is thin, both portions and the boundary between them can be touched. There is no difference, and the marks M1 to M3 give a smooth and soft impression.

As described above, according to the method of the present invention, initials, one-point marks, dates, and the like can be marked on the surface of the metal head of a commercially available golf club. Even if the golf club has arrived, by removing the coating film 6 and applying the same marking, the golf club can be reproduced as having a very beautiful new product-like finish and having a marking unique to the user. In addition, it goes without saying that the method of the present invention can be applied to the finishing stage in the production of a golf club, and can also be applied to the head H of a golf club in the form of an iron or putter.

Further, the method of the present invention is not limited to the golf club described above, but may be applied to aluminum wheels, nameplates, nameplates,
The present invention is also applicable to door handles, locks, construction hardware, and articles having various metal surfaces.

[0026]

According to the marking method of the first aspect of the present invention, various marks such as characters and patterns can be easily and easily formed on a metal surface, and the marks are colored on a matte satin-like background. It is very prominent, beautiful and easy to distinguish in a metallic color and emerges in a prominent manner.It also prevents the baldness of the mark and the color fading of the background over a long period of time, and also smoothes the entire marked surface. Can give a soft image.

According to the second aspect of the present invention, in the above-described marking method, it is possible to more efficiently roughen and color the mark background area of the metal surface by spraying the colored blast material.

According to the third aspect of the present invention, in the above-described marking method, the grinding force by spraying the colored blast material is not excessive, and the collision force is suitable for transferring the coloring agent to the metal surface. The mark background area on the front surface can be set in a moderately rough state and at a high coloring efficiency.

According to the fourth aspect of the present invention, in the above-described marking method, the mark is expressed with a beautiful metallic luster against a matte satin-like colored area as a background, so that the mark is clearly emerged. Can be given.

According to the fifth aspect of the present invention, in the above-described marking method, since the marking is performed on the surface of the metal head of the golf club, the head which is constantly exposed to impacts and abrasions with others during use is not designed. Characters or designs that enhance the character, or initials or one-point marks as unique decorations unique to the owner can be easily provided in a form that does not easily disappear.

According to the sixth aspect of the present invention, when the above marking is performed on an existing golf club, even if the coating on the head surface is scratched or stained due to long-term use, a new brand can be used. It can be reproduced as having a similar and beautiful decoration mark.

According to the seventh aspect of the present invention, in the above marking method, since the adhesive tape is used for the mold sheet used for forming the mark, it is easy and easy to attach the mold sheet to the surface of the metal body. Can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a head side of a golf club to which a marking method according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view showing an operation of attaching a mold sheet to a head of the golf club.

FIG. 3 is a perspective view showing a state in which a colored blast material is sprayed on the head surface.

FIG. 4 is an enlarged sectional view of a coloring blast material.

FIG. 5 is a perspective view showing an operation of peeling a mold sheet from a head after blasting.

FIG. 6 is a perspective view showing the head after the mold sheet has been peeled off.

7A and 7B are diagrams for explaining pre-processing of marking on an existing golf club, wherein FIG. 7A is a longitudinal sectional view of a main part of a head having a coating before processing, and FIG. FIG. 4 is a longitudinal sectional view of a main part of the removed head.

8A and 8B show a marking operation for the head after the pretreatment in the order of steps, in which FIG. 8A is a longitudinal sectional view in which the head surface is polished and smoothed, and FIG. Perspective view of a state where a mold sheet is stuck to the surface,
(C) is a perspective view of a state in which a colored blast material has been sprayed on the head surface to which the mold sheet has been attached, (D) is a perspective view of a state in which the mold sheet has been peeled off from the head surface after blasting,
(E) is a perspective view of a state in which clear coating has been applied to the head surface from which the mold sheet has been peeled off.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal surface 10 Smooth surface 11 Colored area 2, 2a-2c type sheet (adhesive sheet) 20 Base material 21 Adhesive layer 3 Colored blast material 3a Abrasive grains 3b Coating layer 31 Pigment particles (colorant) 4 Transparent resin layer (clear) 5) Blasting device 5a Nozzle 51 Compressed air injection tube 52 Blast material introduction tube 6 Coating film G Golf club H head M1 to M3 Mark S Shaft

Claims (7)

[Claims] 1. A metal surface to be marked is polished smoothly, and a mold sheet constituting characters, patterns, etc. is attached to key points on the polished metal surface, and then the entire surface including the mold sheet attachment portion By spraying a colored blasting material having a coating layer of a coloring agent on the surface of the abrasive grains, the non-stick area of the mold sheet is roughened and colored, and then the mold sheet is peeled off, thereby removing the sheet peeling portion. A method for marking a metal surface, wherein a mark composed of a smooth surface is exposed, and a clear coating is applied to the entire metal surface. 2. The colored blast material has an average particle diameter of 50 to 1
2. The method for marking a metal surface according to claim 1, comprising pigment particles having an average particle diameter of 0.03 to 3 [mu] m adhered to the surface of 000 [mu] m abrasive grains via a binder. 3. The method for marking a metal surface according to claim 1, wherein the spraying of the colored blast material is performed by a suction type air blast method. 4. The method for marking a metal surface according to claim 1, wherein the polishing before attaching the sheet is such that the metal surface is a mirror surface or a pearlescent surface. 5. The method for marking a metal surface according to claim 1, wherein the metal surface to be marked is a metal head surface of a golf club. 6. The method for marking a metal surface according to claim 5, wherein the metal head is of an existing golf club, and the coating existing on the metal surface is removed with a solvent before polishing. 7. The method for marking a metal surface according to claim 1, wherein the mold sheet comprises a pressure-sensitive adhesive sheet provided with a pressure-sensitive adhesive layer on one surface of a substrate.