KR101153325B1 - Process for sculpturing of stone, wood, glass or tile plate article with functional water soluble film - Google Patents

Abstract

 The present invention adheres to a water dissociative film coated with an acrylic adhesive and an additive on a vinyl acetate resin on a substrate made of stone, wood, tile, or glass to develop an image, and to remove the undeveloped portion with water, and then to remove the film. By sculpting the parts through sandblasting, it is possible to process the substrate quickly and precisely regardless of the type of substrate, and it does not process the surface of the substrate by the chemical treatment method. do.

Description

Process for sculpturing of stone, wood, glass or tile plate article with functional water soluble film}

The present invention relates to a method for engraving images or images of various patterns or characters on a substrate such as stone, wood, glass, and tile using a functional water dissociable film, and more specifically, high functional water dissociation property on the substrate. A method of sculpting an image or an image on a substrate such as stone, wood, glass or tile material by sticking the film to display an image by photosensitization or printing using the film thereon, washing and removing the remainder with water, and then performing sandblasting. It is about.

Conventionally, in addition to the method of carving on wood by hand, etching or etching only on metal or glass surface was not possible at all. Using iron, etc., it is applied to the area to be embossed or engraved to be etched and sculpted, or in the case of glass, the metal was sculpted by the so-called chemical etching method, which is to corrode and fluorine hydrofluoric acid at the site to be carved. Another example of the method is generally shot blasting or shot piercing, which is a method of compressing a small particle (short) with high hardness on the surface to be processed or placing the small particle on a rotating vane and projecting the surface by centrifugal force. It carved and processed by the method called inning.

Therefore, according to the conventional methods, it is possible to sculpt only limited to extremely limited materials such as metal or glass, and it is not possible to use wood, stone, and tiles at all. There was a flaw that was difficult to mass production was also slow.

In addition, since only the image forming film, that is, the photoresist film is coated on the metal surface, the photosensitive film is subjected to photoresist and then etched by blow, or the masking tape is cut into a predetermined image shape and attached to the metal surface and then etched, thereby completely protecting the non-etched metal surface. There was a defect that the precision was weak and the etching speed was slow.

Republic of Korea Patent No. 10-0137171 (1998.02.04) is developed by the inventors disclose a method of carving stone, wood, glass or tile material, the polyurethane plate on a substrate made of wood, stone, tile or glass Form a polyurethane layer with a solution dissolved in cyclohexanone, and form a PVA mixture layer with PVA and a flour mixture thereon, and develop an image by printing or film development using a conventional method without mixing the photosensitive liquid. By washing the developed part with water and then sculpting it by high pressure projection by tungsten nozzle with gold steel or glass beads, the sculpture can be mass produced easily and accurately and precisely in a short time regardless of the type of material. It is.

The present inventors have diligently solved the problems of the conventional method and developed an efficient engraving method. As a result, when the substrate is carved using a high-functional water dissociable film as described below, By applying to any material, such as metal, not only can be sculpted quickly and precisely, it has been found that no pollution is caused by chemicals.

Accordingly, the present invention, in one aspect, by adhering a water dissociable film coated with an acrylic adhesive and an additive to a vinyl acetate resin on a stone, wood, tile or glass substrate to develop an image and wash the undeveloped portion with water It is an object of the present invention to provide an environmentally friendly method of engraving a substrate by removing the film from the film after sandblasting.

According to the present invention, by adhering a high-functional water dissociative film to a substrate and engraving the substrate through a sandblasting method, the adhesion and cohesion of the water-soluble film is excellent, and the removal force is excellent, thus enabling rapid and precise engraving. It is possible to solve environmental problems by chemical treatment and eco-friendly engraving work is possible.

1 is a schematic view showing an example of a laminated structure of a water dissociable film according to the present invention.

In one aspect, the present invention,

(a) adhering the water dissociable film to the surface of the substrate of the stone, wood, glass or tile material to be carved;

(b) developing an image on the water dissociable film adhered to the substrate by photosensitive or printing;

(c) removing the undeveloped portion of the film by washing with water; And

(d) sculpting the portion from which the water dissociable film has been removed by sandblasting

It provides a method for engraving an image or an image including a pattern or a character on a substrate comprising a.

In addition, in the above method, the water dissociable film is sculpted an image or an image containing a pattern or a character on a substrate that is coated with a pressure-sensitive material of water dissociable polymer compound in a synthetic resin obtained by emulsification polymerization of vinyl acetate Provide a way to.

Further, in the above method, the adhesive material including a mixture of 35 to 40% by weight of the acrylic adhesive, 10 to 20% by weight of the additive and 30 to 50% by weight of the organic solvent is coated on the vinyl acetate synthetic resin and then 140 The present invention provides a method of engraving an image or an image including a pattern or a character on a substrate, characterized in that the adhesive material is dried and cured at ˜160 ° C. to laminate a release paper or a release film.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a schematic view showing an example of the laminated structure of the water dissociable synthetic resin adhesive coating film according to the present invention. In Fig. 1, reference numeral 1 denotes a vinyl acetate synthetic resin layer (hereinafter also referred to as "synthetic resin layer"), 2 denotes a surface tension treatment layer, 3 denotes a water dissociable composite polymer adhesive material layer (hereinafter referred to as "adhesive material layer"). And 4 represents a release film layer, respectively.

In the water dissociable synthetic resin adhesive coating film according to the present invention, a vinyl acetate synthetic resin layer (1) obtained by emulsifying and polymerizing vinyl acetate is coated with an adhesive material which is a polymer compound dissociated in water (adhesive material layer 3), and on the back surface thereof. It is characterized in that the release paper or release film (release film layer 4) coated with a coating agent is attached.

The embodiment of the synthetic resin adhesive coating film is a high functional multiple consisting of an emulsion-polymerized synthetic resin layer (1) + a surface tension-increased layer (surface tension treatment layer 2) + an adhesive material layer (3) having excellent solubility in water at room temperature It may be desirable to include layers, which are manufactured by improving chemical interaction and bonding strength between different materials between layers, as well as strong 100% dissociation by normal washing of water after attachment to the substrate and processing is complete. It is desirable to exert a removal force.

Synthetic resin layer (1) obtained by emulsion polymerization of vinyl acetate in the present invention is prepared by mixing or dispersing an inorganic powder binder in a conventional polyvinyl alcohol solution and adding a commercially available curing agent and drying and curing in a conventional manner. Can be used. As for drying and hardening temperature, 140-160 degreeC is preferable.

The thickness of the synthetic resin layer 1 is suitably in the range of 20 to 80 μm, and the raw material vinyl acetate may be made of ethylene, and includes a polymer in which vinyl acetate is polymerized by various methods, and the number of connected vinyl acetate That is, it is preferable to use the thing of 1,000 or more as polymerization degree. The emulsification is suitable to use an emulsifier that is highly hydrophilic, that is, soluble in water.

The chemical method for preparing a layer (surface tension treatment layer 2) in which the surface tension is increased in the synthetic resin layer according to the present invention can be carried out in a similar manner to a known method of coating an adhesive material on a polyethylene resin film. have. It is also possible to use a primer of a composite material having excellent affinity with a water dissociable adhesive material.

In the pressure-sensitive adhesive material layer 3 having excellent solubility in water at room temperature, the pressure-sensitive adhesive material having excellent water solubility may include acrylic, rubber, urethane, silicone, and the like, and in general, Tg (glass transition) in order to have a strong adhesive force and a removal force at the same time. It is preferable to introduce a synthetic resin obtained by emulsion polymerization of vinyl acetate and a polar group exhibiting secondary bonding force.

The pressure-sensitive adhesive material layer 3 is preferably prepared including 35 to 40% by weight of an acrylic adhesive, 10 to 20% by weight of an additive including a binder and a curing agent, and 30 to 50% by weight of an organic solvent.

The acrylic pressure sensitive adhesive includes an acrylic resin, and the acrylic resin is ethyl acetate (EA), 2-ethylhexyl acrylate (2-HEA), vinyl acrylate (VA), butyl acrylate (BA), methyl acrylate as a main monomer. (MA), methyl methacrylate (MMA) is used in 35 to 60 parts by weight, acrylic acid (AA), hydroxyethyl methacrylate (HEMA), methacrylic acid (MAA) in 1 to 12 parts by weight as a functional monomer Apply after mixing.

Additives of the binder and the curing agent may be used in the range of 10 to 20% by weight, and the binder may be more preferably applied in an amount of 0.5 to 15.0% by weight after dispersing the epoxy-based composite resin in order to exhibit a suitable function for this application. have.

Curing agent can be suitably used isocyanate toluene diisocyanate (TDI) or its trimer (trimer), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), etc., 0.5 to 5.0% by weight It may be more desirable to.

Although the solvent is used for viscosity and wettability with the base film, it is preferable to use 30 to 50% by weight of water in consideration of the functionality of the finished product. The copolymer of the functional monomer has an OH / COOH reaction site, crosslinked by sites after the curing agent reaction to control the adhesion, cohesion, and removal of the pressure-sensitive adhesive.

In the above composition ratio, when the acrylic pressure-sensitive adhesive is 35% by weight or less, there is a problem of poor adhesiveness, and when it exceeds 40% by weight, there is a problem of poor water dissociation. In addition, when the content of the additives of the binder and the curing agent is 10% by weight or less, there is a problem that the interlayer bonding force of the film is not sufficient, and when the additive is more than 20% by weight, there is a problem that the cohesion of the film is lowered. In addition, if the content of the organic solvent is less than 30% by weight, the viscosity is insufficient, and if the content exceeds 50% by weight, there is a problem in wettability, the content ratio may be in the range presented in the present invention.

<Examples>

Hereinafter, the present invention is described in more detail by the following representative examples, but the present invention is not limited in any way by these examples.

Example 1 Preparation of Functional Water Dissociative Adhesive Film

The acrylic pressure-sensitive adhesive was dispersed in the synthetic resin obtained by emulsion polymerization of vinyl acetate and mixed. The acrylic pressure sensitive adhesive contained 38% by weight of acrylic resin, 15% by weight of an additive consisting of an epoxy composite resin, and 45% by weight of an organic solvent. Subsequently, while stirring with a homomixer, 2% by weight of a curing agent toluene diisocyanate (TDI) was added, rollcoated onto a release sheet having a basis weight of 80 g / m ² , dried and cured at 150 ° C., to prepare a functional water dissociable film, thereby obtaining a release film. Attached and used in subsequent examples. The adhesive force (test method: KS A1107), the holding force (test method: KS A1107), the initial adhesive force (test method: JIS K6714), the removal force (visual confirmation) was measured and confirmed.

These test results are shown in the following table.

   Item result Adhesive strength (g)  650 Initial Adhesion 2000 Holding force (hr)  1.0 Removal Great

As can be seen from the above experimental results, the water dissociable film of the present invention is excellent in adhesion and removal force is suitable for efficiently carving an image or an image on a substrate such as stone, wood, glass or tile material.

Example 2: Image engraving

After removing the release paper from the film coated with pressure-sensitive adhesive on the vinyl acetate synthetic resin prepared in Example 1, adhered to the surface of the substrate to be carved, and the film was in close contact with the substrate by ultraviolet irradiation such as arc by a conventional method, etc. The image was developed by irradiating with light, and the image was developed. Then, the film was removed and washed with water.

After washing with water as above, the image is developed and then 20 ~ 30kg / is used using a direct steel 2-7mm nozzle made of Tungsten material with high strength and good abrasion resistance. By jetting blow at a pressure of cm 2 it was possible to produce a fine sculpture with a precise blow and a quick blow.

1: vinyl acetate synthetic resin layer, 2: surface tension treatment layer
3: acrylic adhesive layer, 4: release film layer

Claims (3)

(a) adhering the water dissociable film to the surface of the substrate of the stone, wood, glass or tile material to be carved;
(b) developing an image on the water dissociable film adhered to the substrate by photosensitive or printing;
(c) washing the undeveloped portion with water to remove it; And
(d) sculpting sandblasted portions of the water dissociable film, wherein
The water dissociable film is coated with an adhesive material, which is a water dissociable polymer compound, on a synthetic resin obtained by emulsifying and polymerizing vinyl acetate, and the adhesive material is 35 to 40 wt% of an acrylic adhesive, 10 to 20 wt% of an additive, and an organic solvent of 30 to 30 50% by weight of the mixture, which is coated on the synthetic resin and dried and cured at 140 ~ 160 ℃ to be a release material or adhesive film laminated the release film
A method of engraving an image or an image containing a pattern or a character on a substrate. delete delete

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