JP2004314581A - Step engraving relief carving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carving method which can execute solid step engraving without requiring special skills. <P>SOLUTION: The step engraving carving is executed to glass through the following processes, that is, a transfer film forming process, in which designs or the like are processed to an outline diagram forming a plurality of sections by a computer and a transfer film printed with the outline diagram is formed, a masking film forming process, in which the transfer film is superposed on a UV-curable masking film and it is irradiated with ultraviolet rays, and a sandblast process in which a cured part of the masking film is pasted on the surface of a material to be worked such as glass and the sandblast is executed while successively peeling the section to be carved. It is not necessary to cut the mask sheet with hands compared with the conventional step engraving carving method and also not necessary to have skills, experiences, and the intuition like a craftsman in each process of the designing of the mask sheet, the cutting, and the blast in the method. As a result, the work process, which conventionally takes for about thirty minutes, can be shortened to about the half of it. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a desired pattern, picture, character, or other graphic is etched on a surface of a material to be processed such as glass, stone, wood, metal, or plastic by a sandblasting method. The present invention relates to a relief engraving system capable of realizing deep relief engraving.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various methods have been proposed and put to practical use as a method of reproducing a photographic image or a picture on a surface of a material to be processed such as glass by a sandblast method. For example, in the "engraving method of ornamental device product" disclosed in JP-A-1-242299, an ultraviolet-curable liquid resin is applied to a semi-finished film composed of a light-transmitting portion and a non-light-transmitting portion made of a photographic image or the like. Arranged, a UV-curable liquid resin is cured by curing the UV-curable liquid resin and an uncured portion is removed to obtain a mask cover, and then the mask cover is adhered to a surface to be engraved and sandblasted, whereby the film is exposed. There has been proposed an engraving method for engraving a portion corresponding to a non-light-transmitting surface. Further, in the “precision photographic etching system” disclosed in Japanese Utility Model Registration No. 3088855 by the present applicant, a halftone image obtained by shading a photographic image by a computer is printed on a transfer film, and the transfer film is subjected to UV curing. A masking film that is alkali-treated after being superposed on the film and irradiated with ultraviolet light from above is created, and the masking film is adhered to the surface of a material to be processed such as glass and sandblasted, so that a precise photographic image can be eaten. An engraving system has been proposed.
[0003]
All of the engraving methods described above convert a photographic image or the like into a halftone dot and engrave the halftone dot portion by sandblasting. A relatively fine image such as a photograph can be reproduced on the engraved surface. Since the sculpture is shaped like a sculpture, the sculpture can only be realized in a shallow and flat sculpture.
[0004]
On the other hand, in addition to the above-described planar engraving, a technique of performing three-dimensional engraving called “step engraving” on a glass surface or the like by sandblasting is known. This is also called three-dimensional engraving, and is a sculpture method that emphasizes the three-dimensional effect of the pattern.It is often used in flower and plant patterns, portraits and animal paintings, etc. It is characterized by high artistic sculpture. When performing step engraving, a method of pasting a masking sheet on which the pattern to be engraved is drawn in advance on a glass surface, cutting the pattern by hand with a design cutter or the like, peeling it off, and blasting each time is adopted. Have been. In order to make a more three-dimensional deep carving, blasting is performed at a high pressure of about 4 to 7 atm. Therefore, the masking sheet needs to be strongly bonded to a glass material and a strong and thick material that can withstand high-pressure blasting. Conventionally used masking sheets made of vulcanized rubber, etc., have a thickness of about 1 to 3 mm, and it is difficult to cut them as designed even when drawing elaborate patterns. In each step of blasting, skill and skill were required, so to speak, craftsmanship. As a method for solving the problem of cutting, in the "engraving method of characters and the like by using a masking sheet and sand blast" disclosed in JP-A-6-55447, characters and the like are cut with a plotter having a cutting edge attached to a pen tip. A method of engraving characters and the like by sandblasting using a vulcanized rubber masking sheet has been proposed, but there remains a problem that the processing accuracy is limited by a plotter and a cutting blade.
[0005]
Further, the processed surface engraved with glass by sandblasting generates fine irregularities by engraving by spraying an abrasive, and the irregularities reflect light irregularly, so that the processed surface looks white and cloudy. Therefore, in order to give a sense of transparency, three-dimensional feeling, and perspective, surface treatment called tape finish, which dissolves the rough processed surface with hydrofluoric acid, is performed, but a powerful drug called hydrofluoric acid must be used. There was also a problem of waste liquid treatment.
[0006]
[Patent Document 1]
JP-A-1-242299
[Patent Document 2]
Japanese Utility Model Registration No. 3088855
[Patent Document 3]
JP-A-6-55447
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of such a conventional problem, and processes a design or the like into an outline diagram forming a plurality of sections by a computer, creates a transfer film on which the outline diagram is printed, and transfers the transfer film. After the film is laid on a UV-curable masking film and irradiated with ultraviolet light, the cured portion of the masking film is applied to the surface of the material to be processed such as glass, and sandblasting is performed while sequentially peeling off the sections to be engraved. It is an object of the present invention to provide an engraving method capable of performing three-dimensional step carving without requiring complicated skills.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a relief engraving method according to claim 1 is a method for engraving a pattern such as a pattern, a picture, and a character on a surface of a material to be processed such as glass by sandblasting, Using a computer, create an outline diagram that forms one or more sections surrounded by a contour line of about 100μ in thickness, such as images, patterns, pictures, characters, etc., and create a transfer film by printing the outline diagram on a transparent paper or the like with a printer. Transfer film making step, the transfer film on which the outline diagram is printed, on the photosensitive layer of the UV-curable film consisting of a base layer of a flexible film and a photosensitive layer composed of a UV-curable resin composition The UV curable film is subjected to an alkali treatment after being irradiated with ultraviolet light from above, thereby obtaining the outline line of the photosensitive layer of the UV curable film. A masking film forming step of removing a non-cured portion corresponding to a contour line having a thickness of about 100 μ to form a masked film in which a cured portion remains, and affixing a photosensitive layer of the masking film to a surface of a material to be processed; Sandblasting in which one or more sections surrounded by the outline of the cured portion of the photosensitive layer of the masking film are peeled off from the surface of the material to be processed in a predetermined order, and the exposed surface of the material is engraved by sandblasting in each case. And a step.
[0009]
In addition, in the relief engraving method according to claim 1, the UV curable film is composed of a base layer that is a flexible film and a photosensitive layer that is a UV curable resin composition having a thickness of about 200 μm. A protective film is provided over the photosensitive layer, and the protective film is removed when the transfer film is overlaid on the photosensitive layer and irradiated with ultraviolet rays.
[0010]
In the relief engraving method according to claim 1, the UV curable film comprises two layers: a base layer that is a flexible film in advance and a photosensitive layer that is a UV curable resin composition having a thickness of about 100 μm. It is characterized in that one base layer is removed after laminating two films with the surfaces of the photosensitive layers aligned and laminating.
[0011]
In the relief engraving method according to any one of claims 1 to 3, silicic acid (SiO 2) may be used after the sandblasting step. ₂ A) a coating step of coating a surface of a glass or the like on which a pattern is engraved by sandblasting with an alkoxy metal salt-based coating agent having (3) as a main component.
[0012]
The relief engraving method according to any one of claims 1 to 3, further comprising a coloring step of applying a powdery pigment to a surface of a glass or the like on which a pattern is engraved by sandblasting, after the sandblasting step, and the colored glass. Silicic acid (SiO ₂ ) As a main component, and a coating step of coating with an alkoxy metal salt-based coating agent.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described with reference to the drawings based on typical examples. FIG. 1 is a diagram showing each operation process of a method of engraving relief engraving of a figure such as a pattern, a picture or a character on the surface of a material to be processed such as glass by sandblasting according to the present invention.
As shown in FIG. 1, the step-carved relief engraving method of the present invention comprises:
(A) An image, a pattern, a picture, a character, or the like is formed into an outline diagram that forms at least one section surrounded by an outline having a thickness of about 100 μ by a computer, and the outline diagram is printed on a transparent paper or the like by a printer. Transfer film making process to make film,
(B) A transfer film on which the outline diagram is printed is superimposed on a photosensitive layer of a UV-curable film composed of a base layer of a flexible film and a photosensitive layer of a UV-curable resin composition. By irradiating ultraviolet rays from above, the UV-curable film is subjected to alkali treatment, whereby the uncured portion corresponding to the outline having a thickness of about 100 μ in the outline diagram of the photosensitive layer of the UV-curable film is removed and cured. Masking film making process to make a masking film with a part left,
(C) affixing the photosensitive layer of the masking film to the surface of the material to be processed, and then arranging at least one section surrounded by the outline of the cured portion of the photosensitive layer of the masking film in a predetermined order; A sandblasting process of peeling off the surface of the workpiece and engraving the surface of the exposed material each time by sandblasting,
(D) a coloring step of applying a pigment to an engraved surface of a work material such as glass engraved by sandblasting when coloring is desired;
(E) a coating step of applying a coating with a coating agent after coloring an engraved surface for a workpiece such as glass engraved by sandblasting or the engraved surface;
It is performed through the above steps.
[0014]
In the transfer film forming step, a figure desired to be engraved on a glass surface or the like is formed by a computer. A pattern (image, pattern, picture, character, etc.) that is the basis of a figure is input to a computer by a scanner, and is converted into a contour diagram having a thickness of about 100 μ using image processing software. The design may be taken into the computer from the Internet or a communication line through a communication terminal, or a contour diagram having a thickness of about 100 μ may be directly drawn on a screen of the computer using drawing software. FIG. 2A is a diagram of a simple petal created by the drawing software, and is an outline diagram forming a plurality of sections surrounded by a contour 11 having a thickness of about 100 μ. The outlines are created so as to form multiple sections.When transferring to a masking film in a later step and pasting it on a glass surface etc. and sandblasting, peel off the line diagram part of the masking film for each section and sequentially This is for sandblasting. FIG. 2B is a plan view of the state in which the masking film (cured portion) to which the drawing of the petals of FIG.
Next, the created outline diagram is printed on transparent paper or the like by a printer to form a transfer film. The printer may be any of a laser printer, an ink jet printer, a thermal transfer printer, and the like as long as it can print a line of about 100 μ. The printing paper is preferably a tracing paper or a sheet of a synthetic resin material on which a line of about 100 μm can be printed by the printer, and preferably has a thickness of 100 μm or less. In the present example, printing was performed by a laser printer on a polyester sheet having a thickness of about 100 μm, the surface of which was subjected to a matting treatment by fine irregularities. As a result, there is no blurring of fine lines at the time of printing, and also, when irradiating ultraviolet rays from above on the UV curable film in the next step, it is less likely that the ultraviolet rays penetrate into the parts hidden by the lines, The thickness of the line can be accurately transferred. What is printed in this way becomes a transfer film.
[0015]
In the masking film preparation step, the transfer film 10 prepared in the previous step is set on the UV exposure device 30 with the printed surface thereof in contact with the photosensitive layer 22 of the UV-curable film 20, and the UV light is irradiated from the transfer film 10 side. Irradiate. FIG. 3 is an explanatory diagram showing a state of the UV curable film in a masking film forming process. 3A is a cross-sectional view of a UV curable film covered with a protective film when not in use, and FIG. 3B is a partially enlarged cross-sectional view showing the transfer film and the UV curable film set in an exposure device. Is a partially enlarged cross-sectional view of the masking film after alkali treatment, and FIG. 3D is a partially enlarged cross-sectional view showing a state where the masking film is attached to a glass surface and a base layer is peeled off. (In FIGS. 3B to 3D and FIGS. 4A to 4D and 6A to 6E to be described later, oblique lines representing cross sections are omitted for easy viewing of the drawings.)
The UV curable film 20 is composed of two layers, a base layer 21 made of a flexible film and a photosensitive layer 22 made of a UV curable resin composition. (See FIG. 3A), the protective film 25 is peeled off and removed at the time of use, and set on an ultraviolet exposure device 30 by superimposing on a transfer film (see FIG. 3B). In this manner, when the transfer film 10 is irradiated with ultraviolet light, the outline portion of the outline diagram printed on the transfer film 10 is not cured because the ultraviolet light is blocked and does not reach the photosensitive layer 22 of the UV curable film. (Non-cured portion 23) The ultraviolet rays reach the photosensitive layer 22 in a portion other than the outline, and the portion is cured (cured portion 24). When the transfer film 10 is removed after the exposure and the UV curable film 20 is subjected to alkali treatment, the non-cured portion 23 of the heat-sensitive layer 22 is washed away, and only the cured portion 24 remains. Thus, the outline diagram printed on the transfer film 10 by the ultraviolet irradiation is transferred to the UV-curable film 20, and the UV-curable film 20 is masked by the alkali treatment without the non-cured portion 23 of the photosensitive layer 23. (See FIG. 3C).
[0016]
The masking film 29 is used as a mask material when sandblasting the glass surface. In this embodiment, in order to apply a step engraving of about 4 to 5 mm to the glass surface, an abrasive material of coarse particles of No. 60 to 120 using an air gun. Is sprayed onto the glass surface at an air pressure of 5 to 6 atm. At this time, the thin masking film is broken or the edge is peeled off from the glass surface, so that precise etching cannot be performed. On the other hand, if the photosensitive layer is thick, it takes a long time for exposure, and it becomes impossible to transfer a fine line of about 100 μm accurately. Therefore, the thickness of the photosensitive layer is preferably about 200 μm.
[0017]
Usually, a UV curable film is sold and stored in a roll shape in which a long sheet is wound around a small-diameter bobbin. Therefore, there is a curl due to winding during use, which causes various inconveniences. Therefore, instead of using the above-described UV-curable film having a photosensitive layer thickness of about 200μ, a UV-curable film having a photosensitive layer thickness of about 100μ is laminated by laminating the surfaces of the photosensitive layers. It is possible to use a UV curable film in which the curl due to curling is opposite to each other and then one of the base layers is removed, and the photosensitive layer has a total thickness of about 200μ and the curl is corrected. preferable. By using such a UV-curable film, adhesion to the transfer film at the time of exposure to ultraviolet light is good, and it is possible to transfer a fine line of 100 μ accurately.
[0018]
In the sand blasting process, first, a liquid paste is thinly applied to the surface of the glass product to be carved in steps, and the masking film 29 prepared in the previous process is attached thereon so that the photosensitive layer 22 is in contact with the glass surface. 21 is peeled off (FIG. 3D is a partially enlarged cross-sectional view showing a state where the cured portion 24 of the photosensitive layer is attached to the glass surface after removing the base layer). At this time, as shown in FIG. 2B, the cured portion 24 attached to the glass surface appears as a plurality of sections of the petals (in FIG. 2B, the cured portion 24 is represented by black ink). Each section of the petal diagram of the hardened portion 24 is peeled off from the glass in a predetermined order, and the surface of the exposed glass is engraved by sandblasting each time. 4A to 4D are partially enlarged cross-sectional views showing a state in which sand blasting is performed on a glass surface to which a masking film (cured portion 24) is attached. First, the section 01 of the masking film (cured portion 24) is peeled off, and the exposed glass surface is sandblasted as shown in FIG. 4A, whereby the glass surface is engraved (engraved portion 01 ′) as shown in FIG. 4B. Next, the section 02 of the masking film (cured portion 24) is peeled off, and the exposed glass surface is sandblasted as shown in FIG. 4C, whereby the glass surface is engraved (engraved portion 02 ') as shown in FIG. 4D. In this manner, each section of the masking film is peeled off in a predetermined order, and the sequentially exposed glass surface is engraved by sandblasting. FIG. 5A is a plan view showing each section of the masking film (cured portion 24) attached to the glass surface. FIG. 5B is a cross-sectional view of the step-carved glass corresponding to the cross-section indicating line aa in FIG. 5A (engraved portions 01 ′ to 06 ′ correspond to sections 01 to 06 in FIG. 5A, respectively). Engraved). The order of engraving of each section is determined so as to spread from the center of the symbol to the peripheral portion and to facilitate engraving by the symbol. At this time, when engraving the first section 01, it is dug deep to the vicinity of the outline, and when engraving the next section 02, the boundary with the first engraved section 01 is dug shallowly and the boundary with the unengraved section is engraved. In the same way, it is possible to dig deeper to make a step, and then similarly to dig shallowly at the boundary with the previously carved section and deeply at the boundary with the uncarved section, to make the step carving sculpture three-dimensional. It is a technique to show.
As shown in FIGS. 4 and 5, sandblasting is performed while sequentially peeling off each section of the masking film (cured portion 24). The engraving range can be adjusted depending on the size and nozzle shape of the air gun. When the thickness of the outline in the outline diagram was set to about 100 μ when the transfer film was prepared, each section of the masking film (cured portion 24) is adjacent with a gap of about 100 μ from which the outline is removed. Even when sand is applied to a nearby gap when blasting a certain section, the gap is as small as about 100 μ. Therefore, when sand (abrasive) of coarse particles of No. 60 to 120 is used as in this embodiment. In this method, almost no sand enters the gap, and the glass surface of the gap is not etched. That is, the contour line of the figure carved in steps is clearly left, and the three-dimensional effect is not impaired.
According to the above-mentioned sand blasting process, there is no need to cut the mask sheet by hand as compared with the conventional step engraving method, and it requires craftsmanship skill and can in each process of mask sheet design, cutting and blasting Therefore, the work process that conventionally required about 30 minutes could be reduced to about half the time.
[0019]
The processed surface of the glass engraved by sandblasting generates fine irregularities by engraving by spraying an abrasive, and the irregularities cause light to be irregularly reflected and the processed surface appears to be white and cloudy. In the coating step, the glass engraved surface is washed after sand blasting, and silica (SiO ₂ ) Is applied. This alkoxy metal salt-based coating agent is characterized by forming a hydrophobic and shielding glassy film with an alcoholic hydrolysis / polycondensation type coating agent. The main component of glass is silicic acid (SiO ₂ ), When this alkoxy metal salt-based coating agent is applied to glass, a glassy film of almost the same quality as glass is formed, and this glassy coating is water-repellent (contact angle with water 60 to 100 degrees) and artificially resistant. It has excellent stain resistance (such as anti-writing), good chemical resistance, exhibits electrical insulation and non-adhesiveness, and is nonflammable, smokeless, has good weather resistance, and has a high hardness glossy enamel coating. create. In the present embodiment, the coating agent “Ceramica G90” manufactured by Nissan Seisakusho Co., Ltd. was used, but was cured by heating at room temperature or low temperature to form a vitreous film of substantially the same quality as the base glass. Assimilation and filling the fine unevenness of the processed surface caused by sandblasting, the transparency, three-dimensional feeling and perspective were not impaired, and the texture, luxury and artistic quality of the step carving were further improved.
FIG. 6A is a partially enlarged cross-sectional view of the glass carved in steps by sandblasting. FIG. 6B is an enlarged view of the bb portion of the engraved surface 41 by the sand blast of FIG. 6A, and the engraved surface 41 shows fine irregularities by the sand blast. FIG. 6C is a partially enlarged cross-sectional view of the glass engraving surface showing a state where the engraving surface 41 of the bb portion in FIG. 6A is coated with a coating agent. The glass engraved surface coated as described above is as smooth and transparent as in the case of hydrofluoric acid treatment, and does not require large-scale equipment such as purification drainage or permission such as hydrofluoric acid treatment.
[0020]
In the case of coloring the engraved surface, a coloring step is provided before the coating step, and after washing the glass engraved surface having fine irregularities by sandblasting, a powdery pigment which is a phthalocyanine-based / monoazo-based / disazo-based compound is provided. Is applied. This powdery pigment fills the irregularities of the glass engraved surface and can be colored in a desired color while keeping the surface smooth. FIG. 6D shows a state where the powdery pigment is applied to the engraved surface 41 of the bb portion in FIG. 6A. FIG. 6E is a partially enlarged cross-sectional view of the glass engraved surface showing a state in which the powdery pigment is applied to the engraved surface 41 in the bb portion of FIG. 6A and then coated. By coating the engraved surface coated with the powdery pigment in the above-described coating process in this way, not only is the colored surface protected by water repellency, chemical resistance, stain resistance, etc., but also decorativeness on the step-carved relief, The artistry can be enhanced.
[0021]
Equipment such as a personal computer, a scanner, a laser printer, an ultraviolet exposure machine, and a blast machine used in each step of the relief relief engraving method of the present invention can be used by placing a small one in a store, and As soon as you receive the design you want to engrave, you can immediately sandblast the glassware inside the store. That is, after the customer brings the design or selects the desired design from the design sample prepared in the store, orders the engraving on the desired glass product, etc., the above-described steps in the store by the step-carved relief engraving method of the present invention. Can be worked in a short time, and the engraved glassware or the like can be delivered on the spot. It is also possible to equip the store with a communication terminal and accept designs provided by customers via a communication line such as the Internet or a mobile phone. Therefore, a sculptured relief engraving system equipped with each step of the sculptured relief engraving method of the present invention is provided at a souvenir shop such as a glass product store, a sightseeing spot, a wedding hall, and various entertainment venues. Can provide a business of decorating and selling the pattern desired by the customer. The corrugated relief sculpture system can also be installed in a vehicle such as a one-box car and moved to an event venue for business. As described above, it is possible to develop a franchise system as a business including the guidance of the work know-how and the sales know-how by packaging the step-carving relief engraving system and the manual of each work process.
[0022]
In the embodiment described above, an example was described in which glass was used as the material to be engraved by the step-relief engraving method of the present invention. However, other than glass, stone, metal, ceramic, plastic, or wood may be used. . By the step-carving relief engraving method of the present invention, various glass products such as glasses, tableware, ashtrays, mirrors, marble, tombstones, key chains, nameplates, mobile phone cases, vases, nameplates, signboards, stone products, metal products, Can be carved in steps on ceramic, plastic and wood products.
[0023]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
Since the figure to be engraved on the glass surface is converted into an outline diagram by a computer, a thin outline of about 100μ can be drawn accurately, and the outline is made into an outline diagram that forms one or more sections. Since each section of the mask film can be peeled off accurately and easily when sand blasting, there is no need to cut the mask sheet by hand as compared with the conventional step engraving method, and the design and cutting of the mask sheet Since each step of blasting does not require craftsmanship skills and cans, the work process, which conventionally required about 30 minutes, is reduced to about half the time. Also, as in the method of engraving characters and the like by sandblasting using a vulcanized rubber masking sheet that cuts characters etc. with a plotter with a cutting edge attached to the pen tip, the processing accuracy by the plotter and cutting blade may be limited. Absent.
In addition, when sandblasting, the gap between the sections of the mask film is as small as about 100 μ, so that the gap is not etched, and the contour of the figure engraved stepwise remains sharp and does not impair the three-dimensional appearance.
In addition, since the thickness of the photosensitive layer of the mask film is set to about 200 μ, exposure can be performed in a short time from the transfer film, and a fine line of about 100 μ can be accurately transferred. In order to apply a step engraving of about 4 to 5 mm on the glass surface, even if an abrasive of 60 to 120 coarse particles is sprayed on the glass surface with an air gun at an air pressure of 5 to 6 atm, the masking film is broken, Precise etching can be performed without the edges peeling off the glass surface.
In addition, the UV curable film is a film composed of two layers of a base layer that is a flexible film and a photosensitive layer that is a UV curable resin composition having a thickness of about 100 μ in advance. By using the laminated material, the curl caused by the winding is opposite to each other and is canceled out, the adhesion with the transfer film is good at the time of exposure to ultraviolet light, and the fine line having a thickness of 100 μm can be accurately transferred.
Silicic acid (SiO ₂ ) Is applied to the surface of glass or the like whose design is engraved by sandblasting with an alkoxy metal salt-based coating agent whose main component is to form a glassy film of almost the same quality as the base glass. As a result, it was possible to further enhance the texture, luxury, and artistic quality of the carved sculpture without losing the transparency, three-dimensional appearance, and perspective by filling in the fine irregularities on the processed surface caused by sandblasting. In addition, there is no need for large-scale equipment or permission for purification drainage such as hydrofluoric acid treatment.
When coloring the engraved surface, the glass engraved surface on which fine irregularities are generated by sandblasting is washed, and then a powdery pigment, which is a phthalocyanine, monoazo, or disazo compound, is applied. Can fill the irregularities of the glass engraving surface and color the desired color while smoothing the surface, and further enhance the decorativeness and artistry of the step-carved relief.
[Brief description of the drawings]
FIG. 1 is a process chart showing working steps of a step-carving relief engraving method of the present invention.
FIG. 2 is an outline diagram (A) of a simple petal created by drawing software, and a plan view (B) showing a masking film attached to a glass surface.
FIG. 3 is a sectional view of a UV curable film when not used (A), a partially enlarged sectional view showing a transfer film and a UV curable film set in an exposure device (B), and a partially enlarged view showing a masking film subjected to alkali treatment. It is sectional drawing (C) and partial enlarged sectional view (D) which shows the state which stuck the masking film to the glass surface and peeled the base layer.
FIG. 4 is a partially enlarged sectional view showing a state in which one section of the masking film is peeled off and sandblasted (A), a partially enlarged sectional view showing an engraved glass surface (B), and a section next to the masking film is peeled off. FIG. 3 is a partially enlarged sectional view (C) showing a state of sand blasting, and a partially enlarged sectional view (D) showing an engraved glass surface.
FIG. 5 is a plan view (A) showing each section of the masking film, and a cross-sectional view (B) of glass engraved stepwise by sandblasting.
6 is a partially enlarged cross-sectional view (A) of a glass engraved surface engraved stepwise by sandblasting, an enlarged view of a bb portion of the glass engraved surface of FIG. 6A (B), and a state in which the glass engraved surface is coated. FIG. 6A is an enlarged view of a bb portion of FIG. 6C, FIG. 6A is an enlarged view of a bb portion of FIG. 6A showing a state where the powdery pigment is applied to the glass engraved surface, and FIG. FIG. 6B is an enlarged view (E) of a portion bb in FIG. 6A showing a state where the coating is applied after the application.
[Explanation of symbols]
10. Transfer film
11. Outline
20 UV curable film
21 ・ ・ Base layer
22 ・ ・ Photosensitive layer
23 .. Uncured portion of photosensitive layer 22
24 .. Cured portion of photosensitive layer 22
25 ... Protective film
29. Masking film
30 ... UV exposure unit
40 ・ ・ Glass
41 ... Sculpture surface by sandblast
42 ... Powdered pigment
43 ・ ・ Coating agent
01 to 06 ... Section of masking film (cured part)
01 'to 06' ... engraving sections corresponding to sections 01 to 06

Claims (5)

It is a method of engraving and engraving patterns, pictures, characters and other figures on the surface of the material to be processed such as glass by sandblasting,
Using a computer, create an outline diagram that forms one or more sections surrounded by a contour line of about 100μ in thickness, such as images, patterns, pictures, characters, etc., and create a transfer film by printing the outline diagram on a transparent paper or the like with a printer. Transfer film making process,
The transfer film on which the outline diagram is printed is superimposed on a photosensitive layer of a UV-curable film composed of a base layer that is a flexible film and a photosensitive layer that is a UV-curable resin composition. By irradiating ultraviolet rays from the side, the UV-curable film is alkali-treated to remove and cure the uncured portion corresponding to the outline having a thickness of about 100 μ in the outline diagram of the photosensitive layer of the UV-curable film. A masking film making process for making a masking film with a portion remaining,
The photosensitive layer of the masking film is affixed to the surface of the material to be processed, and then one or more sections surrounded by the outline of the cured portion of the photosensitive layer of the masking film one by one sequentially from the surface of the material to be processed. Peeling off, the sandblasting process of engraving the surface of the exposed material each time by sandblasting,
Step-carving relief engraving method characterized by comprising The UV-curable film is composed of a base layer that is a flexible film and a photosensitive layer that is a UV-curable resin composition having a thickness of about 200 μ, and a protective film formed of a release film on the upper surface of the photosensitive layer. 2. The relief engraving method according to claim 1, wherein the protective film is removed when the transfer film is overlaid on the photosensitive layer and irradiated with ultraviolet rays. The UV-curable film is a two-layer film composed of a base layer that is a flexible film and a photosensitive layer that is a UV-curable resin composition having a thickness of about 100 μm, and is laminated by laminating the surfaces of the photosensitive layers. The relief engraving method according to claim 1, wherein one of the base layers is removed after the step. After the sand blasting step, a coating step of coating a surface of glass or the like on which a pattern is engraved by sand blasting with an alkoxy metal salt-based coating agent containing silicic acid (SiO ₂ ) as a main component is provided. The relief engraving method according to claim 1. After the sandblasting step, a coloring step of coloring the surface of the glass or the like on which the pattern is engraved by sandblasting with a powdery pigment is provided, and the surface of the colored glass or the like is made of an alkoxy-based material containing silicic acid (SiO ₂ ) as a main component. The relief engraving method according to any one of claims 1 to 3, further comprising a coating step of coating with a metal salt-based coating agent.

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