JP2003170110A - Surface treatment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stabilize a pattern on the surface of a base material over a long period. <P>SOLUTION: Prescribed colorings 3, 6 are carried out on the surface of the base material 1 after plating 2 by electrodeposition coating or spray coating. The pattern is formed in a range of the thickness of the colorings 3, 6 by laser work (laser marking) 4 and another coloring 5 is performed on the inside part of the pattern by electrodeposition coating. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for surface treatment of a material, and more particularly, the material is subjected to electrodeposition coating or spray coating and then processed with a laser, and the processed portion is colored. The present invention relates to such a surface treatment method.

[0002]

2. Description of the Related Art In general, materials such as pure titanium, beta titanium, titanium alloys containing titanium, brass, nickel silver, beryllium copper, monel, SUS, and new alloys are generally used for eyeglass parts such as temples. There is.

In order to color the eyeglass parts by electrodeposition coating, first, the material is plated, and the first electrodeposition coating is performed on the upper side of this plating. Therefore, the surface of the material is colored by electrodeposition coating.

Next, a desired pattern is formed by printing, transferring, silk printing or the like on the surface colored by electrodeposition coating. Then, a portion where a desired pattern is formed by printing, transferring, silk printing, etc. is subjected to electrodeposition coating to color the surface of the spectacles part, which has been colored. It is designed to be formed into a desired pattern.

In addition to the above-mentioned coloring of the eyeglass parts by electrodeposition coating, spray coating may be performed in some cases. That is, first, the material is plated, and spray coating is performed on the upper side of the plating. Therefore, the surface of the material is colored by spray painting.

Next, a desired pattern is formed by printing, transferring, silk printing or the like on the surface colored by spray coating. Then, a portion where a desired pattern is formed by print printing, transfer, silk printing, or the like is subjected to electrodeposition coating to perform coloring, whereby the surface of a certain colored eyeglass component is It is designed to be colored to form a desired pattern.

However, in the case where the color is applied by the electrodeposition coating or the spray coating as described above, the pattern due to the print printing, the transfer, the silk printing or the like becomes thin or disappears due to sweat or abrasion. It had a problem that it would end up.

The present invention solves the above-mentioned problems of the conventional ones, and the portion colored by electrodeposition coating or spray coating for a long period of time due to sweat, abrasion, etc. It is an object of the present invention to provide a surface treatment method which does not become thin or disappear.

[0009]

In order to achieve the above-mentioned object, the present invention is a surface treatment method for preventing a colored pattern provided on the surface of a material from peeling off. After the plating is applied, the upper surface of this plating is colored by the first electrodeposition coating, and the desired pattern is formed by laser processing on this colored surface, and the second electrodeposition coating is performed in this pattern. It is the one that adopts the other colored means. Further, the present invention is a surface treatment method for preventing a colored pattern provided on the surface of a material from being peeled off. After the surface of the material is plated, the upper surface of the plating is spray-painted to color the surface. Then, a desired pattern is formed on this colored surface by laser processing, and another color is applied to this pattern by electrodeposition coating. Further, the material is a material such as pure titanium, beta titanium, or a titanium alloy containing titanium, brass, nickel silver, beryllium copper, monel, SUS, and a new alloy, which are eyeglass parts.

[0010]

According to the present invention, by adopting the above-mentioned means, the surface of the material is plated, and the upper surface of this plating is coated by electrodeposition or spraying. Then, marking such as patterns by laser processing on the electrodeposited or sprayed layer,
Lastly, the marking-marked portion of this pattern or the like is painted by electrodeposition to form different color patterns on the electrodeposited or sprayed surface by electrodeposition.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 is an explanatory view showing the steps of the surface treatment method according to the present invention, and FIG. 3 is a schematic cross section when the surface treatment method is used. In FIG. 1, pure titanium, beta titanium, and other titanium alloys containing titanium, brass, nickel silver, beryllium copper, monel, SUS, new alloys, and other materials capable of plating and electrodeposition coating are used.
Many of these materials are used as eyeglass parts.

Then, in the material 1 which can be formed into eyeglass parts,
First, the plating 2 is applied, and the first electrodeposition coating 3 is applied on the upper side of the plating 2. Therefore, the surface of the material 1 is colored by the electrodeposition coating 3.

Next, laser processing (laser marking) 4 is performed on the surface colored by electrodeposition coating 3 to form a desired pattern. Then, electrodeposition coating 5 is applied to a portion where a desired pattern is formed by laser processing (laser marking) 4.
Is performed and color is added.
A desired pattern is formed on the surface of a desired colored material (eyeglass component) by another coloring.

Therefore, conventionally, the pattern was formed by printing, transfer, silk printing, etc., but in the present invention, the pattern is formed by laser processing, so that the pattern of the laser processed portion becomes thin due to sweat or abrasion. , There is no fear of disappearing. Also, carve the coating film of electrodeposition coating 3 by laser processing,
By exposing the underlying material surface, the next electrodeposition coating 5
By coloring with, only the surface of the material is painted, so the color of the first electrodeposition coating 3 can be used as it is.

The electrodeposition coating in the above-mentioned embodiment means a method for electrochemically obtaining a coating film by passing an electric current through an object to be coated immersed in a water-soluble coating material, and in the electrodeposition coating film. Since it can be applied uniformly with a coating film thickness of 10 to 30 μm, there is no color variation in electrodeposition after laser.

FIG. 2 is an explanatory view showing another step of the surface treatment method according to the present invention. In this process, in addition to the case where the material is colored by electrodeposition coating, the case where spray coating is performed is shown. That is, first, similarly to the case shown in FIG. 1, a material 1 that can be formed into an eyeglass component.
Then, plating 2 is applied. Next, spray coating 6 is applied to the upper side of the plating 2. Therefore, the surface of the material 1 is colored by the spray coating 6.

Next, laser processing (laser marking) 4 is performed on the surface colored by the spray coating 6 to form a desired pattern. Then, a portion where a desired pattern is formed by laser processing (laser marking) 4 is subjected to electrodeposition coating 5 for coloring, whereby a material colored in a desired manner by spray coating 6 (glasses A desired pattern is formed by coloring on the surface of the component) by electrodeposition coating 5.

The spray coating 6 in the above-mentioned embodiment is based on the principle of spraying, and is a method of spraying the paint on the object to be sprayed with compressed air.
Electrodeposition coating refers to a method of electrochemically obtaining a coating film by passing an electric current through an object to be coated which is immersed in a water-soluble coating material. Further, since the electrodeposition coating can be applied uniformly with a coating film thickness of 10 to 30 μm, there is no color variation in the electrodeposition after the laser.

[0020]

As described above, according to the present invention, the upper surface of the plated surface of the material is colored by electrodeposition coating or spray coating, and the colored surface is laser-processed. (Laser marking) is performed to form a pattern within the range of the colored thickness, and the electrodeposition coating is applied to the inside of the pattern. As a result, without the conventional laser processing (laser marking),
Since I was printing, transferring, silk printing, etc., it was thinned or disappeared due to sweat, abrasion, etc., or the part printed with silk or printed was peeled off, but such a thing does not occur None, for a long time,
This has the effect that a pattern or the like formed by laser processing (laser marking) can be stably present as another coloring.

[Brief description of drawings]

FIG. 1 is a process drawing showing an embodiment of a surface treatment method according to the present invention.

FIG. 2 is a process drawing showing another embodiment of the surface treatment method according to the present invention.

FIG. 3 is a schematic cross-sectional view showing a material treated by the surface treatment method according to the present invention.

[Explanation of symbols]

1 ... Material 2 ... Plating 3, 5 ... Electrodeposition coating 4 ... Laser processing (laser marking) 6 ... Spray coating

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C25D 13/00 C25D 13/00 H 310 310

Claims (3)

[Claims] 1. A surface treatment method for preventing a colored pattern provided on the surface of a material from being peeled off. After plating the surface of the material, a first electrodeposition coating is applied on the upper surface of the plating. A surface treatment method is characterized in that a desired pattern is formed on the colored surface by laser processing, and another color is added to the pattern by a second electrodeposition coating. 2. A surface treatment method for preventing a colored pattern provided on the surface of a material from peeling off. After the surface of the material is plated, the upper surface of this plating is color-painted by spray painting. A surface treatment method characterized in that a desired pattern is formed on the colored surface by laser processing, and another color is added to the pattern by electrodeposition coating. 3. The material is pure titanium, beta titanium,
3. The surface treatment method according to claim 1, which is a spectacle component such as titanium alloy containing titanium, brass, nickel silver, beryllium copper, monel, SUS, and new alloy.