KR20220120899A - Painting method including a pattern on the surface of Ultem material eyeglass frames - Google Patents

Abstract

The present invention relates to a painting method for including a pattern on the surface of an eyeglass frame formed of Ultem material. More specifically, the painting method for including a pattern on the surface of an eyeglass frame formed of Ultem material comprises: a pattern forming step (S100) of forming an embossed pattern or an intaglio pattern on the surface of an injected eyeglass frame by using laser equipment; a deposition step (S200) of depositing any one of copper (Cu), stainless (SUS), and aluminum (Al) on the surface of the eyeglass frame after the pattern forming step (S100); and a metal coating step (S300) of coating the eyeglass frame with metal after the deposition step (S200). Engraving operation, in which fine surface noise formed after polishing operation selectively forms an intaglio pattern or an embossed pattern on the surface of the eyeglass frame by using a laser, causes a visual dispersion effect to prevent blemishes from being exhibited, thereby visually improving aesthetics. Cleaning and drying operations can be performed to suppress the defect rate in the subsequent deposition and coating steps, thereby minimizing deposition defects and coating defects, and above all, optimal conditions can be applied depending on copper, stainless, and aluminum deposited on the eyeglass frame.

Description

Painting method including a pattern on the surface of Ultem material eyeglass frames

The present invention relates to a painting method including a pattern on the surface of an Ultem material eyeglass frame, and more particularly, a visual dispersion effect by forming a pattern on the surface of an Ultem material eyeglass frame or temple using a laser by engraving or embossing. It is a technique that prevents blemishes from being exposed with the naked eye.

In general, Ultem (polyetherimide) is very light and exhibits high mechanical strength comparable to that of alloy materials, and has an excellent flexural modulus that does not break easily even when bent at 180°. Glass transition temperature is 217℃), heat resistance index (RTI, 170℃) and high temperature drying (continuous use temperature 170℃) are possible, and excellent mechanical properties in a wide temperature range along with excellent flame resistance, chemical resistance, radiation resistance and weather resistance It is known that it has retention and dimensional stability (low creep and sensitivity, uniform coefficient of thermal expansion), excellent electrical insulation, and is not inferior to food hygiene methods.

These Ultem materials are applied and used in various fields. In particular, in the field of eyeglasses, the material of eyeglass frames and temples is used as Ultem material, which is produced and sold so that it can be used for a long time.

On the other hand, in order to break away from the monotony of eyeglass frames and legs that have been produced and sold in the past using this Ultem material, a metal coating layer is formed on the surface of the eyeglass frame or temple to make it appear as if it is a metallic material. are being tried

However, in this conventional method, various coating layers such as metal are formed after polishing the surface of an eyeglass frame or temple, but noise tends to occur on the fine surface during the polishing operation, which is a visual effect when the coating layer is formed. There is a problem that it does not have beauty.

First, looking at the prior art,

Registration No. 10-1367478 (Special) A step of vacuum deposition on the surface of the modified Ultem material, an electric base thin film layer treatment step of obtaining an electric base thin film layer made of silver (Ag) or copper (Cu) material with excellent electrical conductivity; A color base thin film layer processing step of vacuum deposition on the electric base thin film layer to obtain a silvery white color base thin film layer with excellent metal texture and autonomy in color production; As a step of applying the color base thin film layer, an electric painting operation step for forming a uniform coating film layer by intervening electricity (including pruning machine) between the object to be coated, the painting equipment, and the particles of the paint; It is disclosed in a high-efficiency coating method of Ultem material consisting of

Registration No. 10-1263641 (Special) The official chemical name is polyetherimide (PEI), but in this field, the surface of the Ultem eyeglass frame 10, commonly called Ultem, is coated with a solvent and performing a "metal thin film layer forming step" of forming a metal thin film layer of a certain thickness that can avoid direct contact with the paint and allow for more freedom; On the metal thin film layer, 18 to 20wt% of ester resin, 1-3wt% of melamine resin, 0.1wt% of formaldehyde, 2-5wt% of solvent naphtha, 6-7wt% of isopropyl alcohol, 28.8wt% of toluene, 6.6wt of methyl ethyl ketone %, cyclohexanone 30 ~ 33wt%, and isobutanol 1 ~ 3wt% of performing a "primer application step" to form a mixed primer coating layer; On the primer coating layer, 35 to 45wt% of acrylic resin, 10 to 25wt% of melamine resin, 35 to 45wt% of xylene, and 2 to 8wt% of solvent naphtha were mixed with a "surface finishing layer application step" to apply a surface finishing layer. and; In the primer application step of forming the primer coating layer, 0.5 to 6 wt% of a pigment is further added to the physical properties of the primer coating layer to produce a color, or a pattern and color with a sublimable dye on the surface finishing layer One of the "color processing steps" selected from the transfer method of forming a color transfer layer by pressing the designed transfer paper (film) closely and pressing it at a temperature of 110 ℃ to 160 ℃ for 2 to 8 minutes. to carry out; A method for forming a thin film coating layer on the surface of Ultem spectacle frames is disclosed.

Although the prior art described above centrally describes a method such as forming a coating layer on the surface of an eyeglass frame or temple, fine blemishes (noise) are inevitably exposed even after polishing before forming the coating layer as described above. No, it is still not possible to solve the problems of the prior art by painting the surface coating layer in a state in which the blemishes are exposed.

The present invention has been devised to solve the problems of the prior art, and after selectively polishing the surface of the spectacle frame or temple of Ultem material, or after performing the grinding operation, using a laser to engraving in the desired shape. After forming the pattern of , a separate coating layer is formed, so that blemishes are not revealed due to the visual dispersion effect by the pattern, so that it can have a visually beautiful appearance, and simplify the process to shorten the manufacturing time and increase productivity. It was completed as a technical task with an emphasis on providing a coating method that includes patterns on the surface of eyeglass frames made of Ultem material.

Accordingly, the present invention provides a method for coating the surface of an eyeglass frame made of Ultem material, comprising: a pattern forming step (S100) of forming an embossed or engraved pattern on the surface of the injected eyeglass frame using a laser device; After the pattern-shaping step (S100), a deposition step (S200) of depositing any one material of copper (Cu), stainless (SUS), and aluminum (Al) on the surface of the eyeglass frame; After the deposition step (S200), the coating step (S300) of coating the eyeglass frame; characterized in that it comprises a.

In the deposition step (S200), the copper (Cu) material is primarily treated in a plasma state for 120 to 140 seconds, and is secondarily treated at a high frequency for 5 to 55 seconds and a voltage of 230 to 380, and a stainless steel (SUS) material is primarily processed for 120~140 seconds in plasma, 15~60 seconds at high frequency, and secondary at voltage of 250~380, and aluminum (Al) is primarily treated for 120~140 seconds in plasma. , characterized in that the secondary processing is performed with a high frequency of 10 to 30 seconds and a voltage of 120 to 140.

Before the deposition step (S200), a cleaning step (S150) of sequentially performing a cleaning and drying process, a degreasing process, and an ultrasonic treatment process for the patterned spectacle frame, wherein the drying process is performed at 20 to 25° of the cleaned spectacle frame. After drying primarily for 1 hour, the first dried eyeglass frames were dried at 45° C. for 1 hour, then dried secondarily at 50° C. for 2 hours, 55° C. for 2 hours, and then at 60° C. for 3 hours. characterized in that

The coating step (S300) is characterized in that the pattern of the spectacle frame is formed to be the same according to the embossed or engraved pattern, or the overall width of the spectacle frame is formed to be the same.

According to the coating method including the pattern on the surface of the Ultem material eyeglass frame of the present invention, the fine surface noise formed after the polishing operation is visually visualized by the engraving operation that selectively forms an intaglio or embossed pattern on the surface of the eyeglass frame using a laser. It has the effect of not revealing blemishes through the dispersion effect, which has the effect of having a visually beautiful appearance, and performs cleaning and drying operations to suppress the defect rate in the subsequent deposition and coating steps, thereby minimizing deposition and coating defects, Above all, it is a useful invention that can provide optimal conditions according to copper, stainless steel, and aluminum deposited on eyeglass frames.

1 is a flowchart showing a preferred embodiment of the present invention;
2 is a view showing a preferred embodiment of the pattern forming step of the present invention;
3 is a view showing a preferred embodiment of the coating step of the present invention

The present invention is a coating that forms patterns on the surface of Ultem material eyeglass frames or temples using a laser to form patterns by engraving or embossing to give a visual dispersion effect so that blemishes are not exposed to the naked eye. provide a way

Hereinafter, the preferred configuration and operation of the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 with reference to the accompanying drawings.

First, as shown in FIG. 1, the present invention provides a metal coating method for the surface of an eyeglass frame made of Ultem, comprising: a pattern forming step (S100) of forming an embossed or engraved pattern on the surface of the injected eyeglass frame using a laser device; After the pattern-shaping step (S100), a deposition step (S200) of depositing any one material of copper (Cu), stainless (SUS), and aluminum (Al) on the surface of the eyeglass frame; After the deposition step (S200), the coating step (S300) of coating the eyeglass frame; is configured to include.

In the pattern forming step (S100), as shown in FIG. 2, the outer or inner side of the spectacle frame performs an engraving operation to form one or more patterns by using a laser, but the patterns are formed by engraving or embossing.

In this case, the pattern may be formed in various shapes.

On the other hand, the reason for forming the pattern on the surface of the spectacle frame is, in general, in order to facilitate deposition on the surface of the spectacle frame made of Ultem material, the outer or inner side of the spectacle frame is polished, then the deposition operation and the coating operation are performed. Even if the polishing operation is elaborated on the surface, fine surface noise is inevitably formed.

That is, by forming an engraved or embossed pattern on the surface of the eyeglass frame in a desired shape using a laser machine, etc., it allows users to visually disperse the blemishes on the surface of the eyeglass frame after polishing through the effect as if it were the original one. It can be expressed as a pattern, and according to the visual dispersion effect, it can be visually beautiful.

The deposition step (S200) is a step of selecting and depositing any one of copper (Cu), stainless steel (SUS), and aluminum (Al) on the surface of the spectacle frame on which the pattern is formed.

First, the copper (Cu) material is primarily processed in a plasma state for 120 to 140 seconds, and is deposited by secondary processing at a high frequency for 5 to 55 seconds and a voltage of 230 to 380.

In addition, the stainless (SUS) material is primarily processed in a plasma state for 120 to 140 seconds, and is deposited by secondary processing at a high frequency for 15 to 60 seconds and a voltage of 250 to 380, and the aluminum (Al) material is in a plasma state 120~140 sec., and secondary treatment with high frequency for 10~30 sec and voltage of 120~140, and then deposition.

That is, the processing method is different depending on the material to be deposited.

Here, before the deposition step (S200), a cleaning step (S150) of sequentially performing a cleaning and drying process, a degreasing process, and an ultrasonic treatment process for the patterned spectacle frame, wherein the drying process includes the cleaned spectacle frames 20 to 25 ° for 1 hour, and after drying the first dried eyeglass frames at 45 °C for 1 hour, then 2 hours at 50 °C, 2 hours at 55 °C, 2 hours at 60 °C, and 2 hours at 60 °C sequentially to dry with

Before performing the deposition step (S200) through the degreasing process and the ultrasonic treatment process of the cleaning step (S150), by thoroughly cleaning foreign substances on the surface of the eyeglass frame in the pattern forming step (S100), in the deposition step (S200) It is possible to minimize the defect rate of

Considering that the present invention is a method of coating a metal on the surface of an eyeglass frame, it is a very important step.

In addition, in order to make the deposition more stable, during the cleaning step (S150), the drying step is performed in two steps to completely remove moisture, etc. on the surface of the eyeglass frame and dry it, so that any one of copper, stainless steel, and aluminum is applied to the surface of the eyeglass frame. When a single material is deposited, the deposition power (adhesion power) can be increased.

In the coating step (S300), as shown in FIG. 3, the pattern of the spectacle frame may be formed to be the same according to the embossed or engraved pattern, or the overall width of the spectacle frame may be formed to be the same.

That is, the thickness of the coating layer formed on the spectacle frame is formed to have the same upper and lower widths, so that the tactile sense itself can be felt as well as the sight, and the upper and lower widths including the spectacle frame and the coating layer are completely the same. It can be expressed only visually as intaglio or embossed.

This coating step (S300) may be selectively performed according to the request of the consumer.

Example)

① Foreign matter removal rate according to the drying conditions of the cleaning stage

1st drying 2nd drying Removal rate temperature hour temperature hour Example 1 20-25° One 45℃ One 99% 50℃ 2 55℃ 2 60℃ 3 Example 2 30-35° One 30℃ One 94% 35℃ 2 40℃ 2 45℃ 3 Example 3 40-45° One 25℃ One 96% 35℃ 2 40℃ 2 55℃ 3

As shown in Table 1 above, Example 1 of the drying process of the cleaning step (S150) of the present invention is primarily dried at 20-25 ° C for 1 hour, secondary drying at 45 ° C for 1 hour, At 50°C for 2 hours, at 55°C for 2 hours, and at 60°C for 3 hours, the removal rate was found to be 99%.

Example 2 was dried primarily at 30-35° for 1 hour in primary drying, and in secondary drying at 30°C for 1 hour, at 35°C for 2 hours, at 40°C for 2 hours, and at 45°C for 3 hours. The removal rate was found to be 94%.

Example 3 is primary drying at 40-45° for 1 hour, and secondary drying, at 25°C for 1 hour, at 35°C for 2 hours, at 40°C for 2 hours, at 55°C for 3 hours. The removal rate was found to be 96%.

That is, in the cleaning step (S150), it can be seen that the foreign matter removal rate is the highest under the conditions of Example 1.

② Copper (Cu) material treatment conditions and durability test in the deposition stage

division Material Plasma (Glow) high frequency time Voltage degree of vacuum durability Preheat diffusion Preheat diffusion Example 1 Copper (Cu) 120-140 seconds 5 seconds 45 seconds 230 270 5~9.5 9.1 Example 2 5 seconds 50 seconds 250 330 9.5 Example 3 10 seconds 55 seconds 280 380 9.3

As shown in Table 2, Example 1 was primarily treated in a plasma state for 120 to 140 seconds, high frequency preheating 5 seconds, diffusion 45 seconds, voltage preheating 230 seconds, diffusion 270 seconds, and vacuum degree 5 to 9.5. The durability was found to be 9.1.

Example 2 is primarily treated in a plasma state for 120 to 140 seconds, and the durability is 9.5 when deposited by processing with high frequency preheating 5 seconds, diffusion 50 seconds, voltage preheating 250 seconds, diffusion 330 seconds, and vacuum degree 5 to 9.5. appear.

Example 3 is primarily processed in a plasma state for 120 to 140 seconds, high frequency preheating 10 seconds, diffusion 55 seconds, voltage preheating 280 seconds, diffusion 380 seconds, and vacuum degree 5 to 9.5. appear.

That is, it can be seen that the durability is the highest when the copper (Cu) material is deposited on the surface of the spectacle frame under the conditions of Example 2.

③ Stainless steel (SUS) material treatment conditions and durability test in the deposition stage

division Material Plasma (Glow) high frequency time Voltage degree of vacuum durability Preheat diffusion Preheat diffusion Example 1 Stainless steel (SUS) 120-140 seconds 5 seconds 45 seconds 230 270 5~9.5 9.0 Example 2 5 seconds 50 seconds 250 330 9.2 Example 3 10 seconds 55 seconds 280 380 9.6

As shown in Table 3, Example 1 of stainless steel (SUS) material was primarily treated in a plasma state for 120 to 140 seconds, high frequency preheating 5 seconds, diffusion 45 seconds, voltage preheating 230 seconds, diffusion 270 seconds, vacuum degree 5 When deposited by treatment with ~9.5, the durability was found to be 9.0.

Example 2 is treated with a plasma state for 120 to 140 seconds, and high frequency preheating for 5 seconds, diffusion for 50 seconds, voltage preheating for 250 seconds, diffusion for 330 seconds, and vacuum degree 5 to 9.5. When depositing, the durability is 9.2. appeared to be

Example 3 is treated with a plasma state for 120 to 140 seconds, and high-frequency preheating for 10 seconds, diffusion for 55 seconds, voltage preheating for 280 seconds, diffusion for 380 seconds, and vacuum degree 5 to 9.5. When depositing, the durability is 9.6. appeared to be

That is, the stainless steel (SUS) material may have the highest durability when deposited under the conditions of Example 3.

④ Aluminum (Al) material treatment conditions and durability test in the deposition stage

division Material Plasma (Glow) high frequency time Voltage degree of vacuum durability Preheat diffusion Preheat diffusion Example 1 Aluminum (Al) 120-140 seconds 15 seconds 45 seconds 230 270 5~9.5 9.8 Example 2 5 seconds 50 seconds 250 330 9.3 Example 3 10 seconds 55 seconds 280 380 9.2

As shown in Table 4, Example 1 of the aluminum (Al) material is primarily treated in a plasma state for 120 to 140 seconds, high frequency preheating 15 seconds, diffusion 45 seconds, voltage preheating 230 seconds, diffusion 270 seconds, vacuum degree When deposited by treatment with 5 to 9.5, the durability was 9.8.

Example 2 is primarily treated in a plasma state for 120 to 140 seconds, and when deposited by high frequency preheating 5 seconds, diffusion 50 seconds, voltage preheating 250 seconds, diffusion 330 seconds, and vacuum degree 5 to 9.5, the durability is 9.3. appear.

Example 3 is primarily processed in a plasma state for 120 to 140 seconds, high frequency preheating 10 seconds, diffusion 55 seconds, voltage preheating 280 seconds, diffusion 380 seconds, and vacuum degree 5 to 9.5. appear.

That is, the aluminum (Al) material may have the highest durability when deposited under the conditions of Example 1.

According to the coating method including the pattern on the surface of the Ultem material eyeglass frame of the present invention, the fine surface noise formed after the polishing operation is visually visualized by the engraving operation that selectively forms an intaglio or embossed pattern on the surface of the eyeglass frame using a laser. It has the effect of not revealing blemishes through the dispersion effect, which has the effect of having a visually beautiful appearance, and performs cleaning and drying operations to suppress the defect rate in the subsequent deposition and coating steps, thereby minimizing deposition and coating defects, Above all, it is a useful invention that can provide optimal conditions according to copper, stainless steel, and aluminum deposited on eyeglass frames.

S100: pattern forming step S150: cleaning step
S200: deposition step S300: coating step

Claims (4)

In the surface coating method of Ultem material eyeglass frame,
A pattern forming step of forming an embossed or engraved pattern on the surface of the injected spectacle frame using a laser device (S100);
After the pattern-shaping step (S100), a deposition step (S200) of depositing any one material of copper (Cu), stainless (SUS), and aluminum (Al) on the surface of the eyeglass frame;
After the deposition step (S200), a metal coating step (S300) of metal coating the eyeglass frame; a coating method including a pattern on the surface of the Ultem material eyeglass frame, characterized in that it comprises a.
The method of claim 1,
The deposition step (S200) is,
Copper (Cu) material is primarily treated for 120~140 seconds in plasma state, and secondarily treated with high frequency for 5~55 seconds and voltage of 230~380.
Stainless steel (SUS) material is treated primarily for 120~140 seconds in plasma, and secondarily for 15~60 seconds at high frequency and 250~380 voltage.
Aluminum (Al) material is primarily processed in a plasma state for 120 to 140 seconds, and is secondarily treated with high frequency for 10 to 30 seconds and voltage from 120 to 140. painting method.
The method of claim 1,
Before the deposition step (S200),
A cleaning step (S150) of sequentially performing a cleaning and drying process, a degreasing process, and an ultrasonic treatment process for the patterned eyeglass frame,
The drying process is primarily dried for 1 hour at 20 to 25° of the cleaned eyeglass frames,
After drying the first-dried eyeglass frames at 45° C. for 1 hour, drying them sequentially in the order of 2 hours at 50° C., 2 hours at 55° C., and 3 hours at 60° C. was applied to the surface of the Ultem material eyeglass frame. A coating method comprising a.
The method of claim 1,
The metal coating step (S300),
The pattern of the glasses frame is identically formed according to the embossed or engraved,
A method of painting including a pattern on the surface of an Ultem material eyeglass frame, characterized in that it is formed so that the overall width of the eyeglass frame is the same.

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