JP2522026B2 - Manufacturing method of eyeglass frame with design - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a novel spectacle frame with a pattern.

[Conventional technology]

Many spectacle frames are provided with designs such as characters, symbols, codes and patterns.

In this case, the pattern is engraved, machine-stamped, pad-printed, manually formed a masking layer, then painted,
It has been applied by a method of forming a coating layer different from the frame base material by plating (wet or dry method), dyeing, etc., and then peeling off the masking layer, or manual coloring.

[Problems to be Solved by the Invention]

However, engraving is not only low in productivity because it is done manually, but also requires skill and the number of skilled craftsmen is gradually decreasing, so that it cannot be mass-produced at low cost.

Machine engraving is highly productive, but it has the problem that it is ugly because it can build up around the design.

Pad printing has high productivity, but there are problems that the outline of the pattern is enlarged or it is dim and ugly.

The method capable of forming a complicated pattern has a problem that not only the productivity is low because the masking layer forming work is performed manually, but also the manufacturing cost is high because there are many steps.

Coloring by hand also has a problem that not only productivity is low, but also skill is required and the number of skilled craftsmen is gradually decreasing, so that it cannot be mass-produced at low cost.

Further, there is a problem that a pattern by a thin line drawing cannot be obtained by any of the methods.

An object of the present invention is to solve these problems.

[Means for solving the problem]

The present invention is firstly: a first step of forming one or a plurality of coating layers on a spectacle frame base material; and, by laser marking, one or two or more layers counting from the coating layer. Provided is a method of manufacturing a spectacle frame with a pattern, which comprises a second step of forming a pattern such as a character, a symbol, a code, and a pattern.

And secondly, a first step of forming a coating layer of one layer or a plurality of layers on the eyeglass frame base material, a letter, a symbol by laser marking on one layer or two or more layers counting from the coating layer A second step of forming a pattern such as a code and a pattern; and a third step of embedding a third substance in the pattern.

And thirdly, a first step of forming a design such as letters, symbols, codes, and patterns by laser marking on the base material of the eyeglass frame; and a second step of embedding a third substance in the design A manufacturing method is provided.

And fourth, a first step of forming a second coating layer on the eyeglass frame base material, a second step of forming a first coating layer on the coating layer, and a first coating layer A third step of forming a first pattern such as letters, symbols, codes and patterns by laser marking, and-characters, symbols by laser marking through the first coating layer to the second coating layer, Provided is a method for manufacturing a spectacle frame with a pattern, which comprises a fourth step of forming a second symbol such as a code and a pattern (however, the order of the third step and the fourth step may be reversed).

And fifth, a first step of forming a peelable coating film on a spectacle frame base material or one having a coating layer of one layer or a plurality of layers formed thereon; , Sign,
Second step of forming a masking layer by forming a pattern such as a pattern; -Third step of embedding a third substance in the pattern or a third step of providing a third coating layer on the whole; and-Peeling off the masking layer Provided is a method for manufacturing a spectacle frame with a pattern, which comprises the fourth step.

[Action]

Laser marking is known per se and the invention is characterized in that it is applied to the manufacture of eyeglass frames. As a result, it becomes possible to obtain designs that are not available in the past, especially designs with thin line drawings, and the spectacle frame design can be further diversified and sophisticated.

In laser marking, while moving the laser beam according to the desired pattern, the beam is applied to the object to be processed (in this case, the frame base material or the frame base material having the coating layer), and the part is burned to form the design. To do. Therefore, the inner part of the pattern is recessed.

The frame base material referred to in the present invention refers to all parts of the spectacle frame, for example, the front, the rim, the end piece, the blow tip, the bridge, the blow, the blow bar, the rim lock, the hinge, the temple, the tip cell and the like.

As the material of the frame base material, there are all known metal materials such as nickel silver, titanium (including alloy), stainless steel, aluminum alloy, copper beryllium alloy, brass, gypsum, plastic, ceramic, etc. Material is used.

The coating layer as referred to in the present invention is a paint using a natural or synthetic resin as a vehicle (wet paint, powder paint, electrodeposition paint,
Electrostatic paint) (application methods include spraying, brushing, brushing, dipping, electrophoresis, etc.),
Coating film obtained by drying (including curing), plating layer by dry plating or wet plating (electroplating or electroless plating) (nickel, chromium, noble metal, stainless steel, titanium nitride, chromium nitride, titanium carbide, diamond-like hard) Examples include a carbon thin film, the coating film dyed or colored by dipping, transfer, printing, etc., a resin ink layer by printing, a resin layer by coloring, a metal clad layer by rolling coating, and the like.

The coating layer may be a single layer or a multilayer of two or more layers. It is effective to change the color, appearance and material of each layer, or to change the appearance and material of the base material.

The third coating layer is also essentially any of the coating layers described above.

Examples of the third substance to be embedded in the pattern include glass, jewels, artificial jewels, artificial jewels, ceramics, metals, and metal compounds, in addition to the material used for the coating layer.

When embedding the third substance in the recessed pattern, the third substance may be made to protrude, or the protruding portion may be ground and polished to form an inlaid pattern.

The peelable coating film can be easily obtained by applying a commercially available product also called a strippable paint and drying it.

The surface irradiated with the laser beam may be discolored as a result of being oxidized or subjected to thermal denaturation. In this case, the discolored portion may be removed by etching.

Hereinafter, the present invention will be specifically described with reference to Examples, but the present invention is not limited thereto.

[Example 1 ... Example of the first invention, see FIG. 1] First, as the frame base material 1, a temple made of nickel silver (copper nickel alloy) was prepared.

First step: This substrate 1 was subjected to gold plating (second coating layer 2) having a thickness of about 2 μm by electrolytic plating or ion plating.

Next, an acrylic black paint is further applied onto the gold-plated layer 2 by spray coating and heated and dried to a thickness of about 10
A coating film (first coating layer 3) having a thickness of μm was formed.

Second step: using a commercially available laser marking device (using a YAG laser having a beam diameter of about 10 to 500 μm), on the coating film 3,
An arabesque pattern with line drawing was applied. As a result, the coating film 3 on the portion irradiated with the laser was burned off, and the gold plating 2 on the background was exposed.

As a result, the arabesque pattern shines golden in the black background,
A delicate and beautiful temple never seen before was obtained (see Fig. 1).

After this, an overcoat may be applied by using a transparent paint, if necessary.

[Example 2 ... Example of the second invention, see FIG. 2] First, a temple made of nickel silver was prepared as the frame substrate 1.

First step: A urethane-based blue paint was applied to the base material 1 by spray coating and dried by heating to form a coating film (second coating layer 2) having a thickness of about 8 μm.

Second step: using a commercially available laser marking device (using a YAG laser with a beam diameter of about 10 to 500 μm), the coating film 2
I wrote the word "Nikon". As a result, the coating film 2 on the portion irradiated with the laser was burned off, and the base material 1 on the background was exposed.

Third step: Then, gold plating with a thickness of about 2 μm was applied by electrolytic plating.

The parts other than the letters "Nikon" are covered with the coating film 2 and lose the conductivity, so only the letters (gold
The substance 4) had adhered and it appeared as if gold had just been embedded in the letters (see FIG. 2).

As a result, a blue temple was obtained in which the letters were shining in gold.

After this, an overcoat may be applied by using a transparent paint, if necessary.

[Embodiment 3 ... Embodiment of the third invention, see FIG. 3] First, as the frame base material 1, a titanium front plated with pink gold by ion plating was prepared.

First step: A commercially available laser marking device (carbon dioxide gas laser) is used for the base material 1, and the diameter of the base material 1 is about
Three 1mm through holes (1 type of pattern) were opened.

Second step: The fine particles of diamond 5 were embedded in the holes, and the adhesive 5 was filled in the gaps to fix the diamond 5.

As a result, a gorgeous front was obtained (see Fig. 3).

[Example 4 ... Example of the fourth invention-see Fig. 4] First, a gold-plated nickel-white temple was prepared as the frame substrate 1.

First step: A urethane-based blue paint was applied to the base material 1 by spray coating and dried by heating to form a coating film (second coating layer 2) having a thickness of about 8 μm.

Second step: An epoxy-based red paint was applied on the second coating layer 2 by dipping, and was dried by heating and curing to form a coating film (first coating layer 3) having a thickness of about 12 μm.

Third step: Using a commercially available laser marking device (using a YAG laser having a beam diameter of about 10 to 500 μm) with a weak beam intensity, an oblique stripe pattern inclined to the right was drawn on the first coating layer 3. As a result, the coating film 3 in the portion irradiated with the laser was burned off, and the blue second coating layer 2 was exposed.

Fourth step: Using the laser marking device described above, with an increased beam intensity this time, an oblique stripe pattern that was inclined to the left was drawn on the second coating layer 2 through the first coating layer 3.
As a result, the coating film 3 and the coating film 2 in the laser-irradiated portion were burned off, and the bare gold was exposed.

As a result, delicate temples having a rhombic lattice pattern with a different color arrangement were obtained (see FIG. 4).

After this, an overcoat may be applied by using a transparent paint, if necessary.

[Example 5 ... Example of fifth invention-see Fig. 5] First, as the frame base material 1, a temple made of titanium was prepared.

First step: The substrate 1 is wet- or dry-plated to a thickness of 3
μm gold plating (second coating layer 2) was applied.

Second step: Next, a commercially available strippable coating material was applied onto the gold plating 2 and dried to form a peelable coating film 7.

Third step: commercially available laser marking device (beam diameter
10-500 μm YAG laser is used) to coat 7
I wrote the word "Nikon". As a result, the coating film 7 in the portion irradiated with the laser was burned off, and the masking layer 7 was formed.

Fourth step: Then, the thickness is reduced to approximately 0 by ion plating.
5 μm TiC black plating (third coating layer 8) was applied. In the ion plating, since the plating is not placed on the portion covered with the insulating masking layer 7, it is as shown in FIG. 5 (A).

Fifth step: Finally, the masking layer 7 was peeled off. As a result, as shown in FIG. 5 (B), a black plated temple was obtained in which the delicate "Nikon" letters were shining in gold.

After this, an overcoat may be applied by using a transparent paint, if necessary.

〔The invention's effect〕

As described above, according to the present invention, since no manual work requiring skill is required, a large number of eyeglass frames can be manufactured at low cost.

Then, the design can be delicately formed, the surroundings cannot be raised, and the contour of the design is not enlarged or blurred, and an extremely beautiful design can be obtained. Complex patterns can be easily formed.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a part of the temple manufactured in Example 1. FIG. 2 is a schematic cross-sectional view showing a part of the temple manufactured in Example 2. FIG. 3 is a schematic sectional view showing a part of the front manufactured in Example 3. FIG. 4 is a schematic sectional view showing a part of the temple manufactured in Example 4. FIG. 5 (A) is a schematic sectional view showing a part of the temple which is being manufactured in Example 5, and FIG. 5 (B) is a schematic sectional view showing a part of the completed temple. [Explanation of Signs of Main Parts] 1 ... Frame base material 2 ... Second coating layer 3 ... First coating layer 4 ... Third substance 5 ... Diamond 6 ... Adhesive 7 ... Peelable Coating or masking layer 8 ... third coating layer L ... laser beam

Claims (2)

(57) [Claims] 1. A coating layer of at least two layers comprising a first step of forming a second coating layer on a spectacle frame base material and a second step of forming a first coating layer on the second coating layer. A coating layer forming step of forming, a third step of irradiating the first coating layer with a laser beam having a relatively low intensity to form a first recess by laser marking, relative to the second coating layer Glasses with concave portions formed by a fourth step of forming a second concave portion by laser marking by irradiating a high intensity laser beam (however, the order of the third step and the fourth step may be reversed) Frame manufacturing method. 2. A first step of forming a peelable coating film on a spectacle frame base material or a spectacle frame base material having one or a plurality of coating layers formed thereon, by forming recesses in the coating film by laser marking. Glasses with a pattern of recesses including a second step of forming a masking layer, a third step of embedding a third substance in the pattern or a third step of providing a third coating layer on the whole, and a fourth step of peeling the masking layer Frame manufacturing method.