JPH07292849A - Production of surface-transparent film of architectural decoration base plate - Google Patents

Abstract

PURPOSE:To improve designs, by sticking inorganic transparent glass beads on a base plate through a transparent setting resin paint and arranging them in the same height and applying the resin paint on the surface and setting the resin. CONSTITUTION:A transparent setting resin paint is applied on true surface of an architectural tease prate 1 having a designed layer 1a at the surface. Transparent inorganic solid glass beads 3 with 0. 05-0.3mm in diameter are arranged to come into contact with the paint so as to be buried therein at the lower parts. The beads 3 are pressed from the upper side so that the tops of all beads 3 are arranged at the same height on the surface of the base plate 1. Then, high temperature air is blown to the upper part of paint 2 to make it flat and cure it and fix the beads 3. And further, the transparent setting resin paint is applied on the surface and cured to form a transparent resin film 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a transparent surface film for a decorative substrate for building materials, and more specifically, for producing a transparent surface film used for surface protection of various decorative plates for building materials, improving the design, and imparting aesthetics. Regarding the method.

[0002]

2. Description of the Related Art Generally, as means for protecting the surface of a decorative substrate for building materials, improving the design, and imparting an aesthetic appearance, a transparent resin film such as an acrylic resin, vinyl chloride resin, polypropylene, or the like, or an acrylic resin or vinyl chloride resin is used. -Le-based, urethane-based,
It is known that a transparent coating film is formed by applying a transparent resin paint such as unsaturated polyester.

Among these means, there is a method in which a transparent resin coating material is mixed and mixed with a reinforcing filler which does not impair transparency, but it is very difficult to uniformly disperse it, and uniform coating is also difficult. It is difficult to obtain uniform film quality. In addition, if the amount of filler is increased or a large filler is mixed for the purpose of significantly increasing the strength peculiar to the resin, coating and dispersion become more difficult. Such a method is not useful for improving the strength inherent to the transparent resin forming the film surface.

A part of resin beads or hollow beads is mixed and applied to a transparent resin, and when this transparent resin is in a liquid state, the top of a bead ball is exposed on the surface by utilizing the difference in specific gravity. Some also form a surface. In this case, the strength peculiar to the transparent resin can be increased, but it is naturally impossible to arrange the exposed vertices of the bead in exactly the same manner. The use of the function of diversion and the change in appearance design are limited.

The inventor of the present invention also applies an adhesive resin onto a substrate, fixes the glass beads by spray-adhesive lamination, and forms an overcoat film. Similarly, after the glass beads are first adhered to the adhesive sheet, the glass bead surface is pressure-fixed and fixed to the surface of the substrate coated with the adhesive fixing resin, and then the adhesive sheet is removed to remove the glass beads. -Proposal and implementation of exposed surfaces have been proposed and implemented, which is useful for improving coating strength, but there are many points to be solved from the viewpoint of manufacturing process and economical efficiency. The peaks of the ridges were not exactly lined up at the same height to form a fixed continuous surface, so the maximum strength could not be secured, and there were various restrictions on post-workability.

[0006]

DISCLOSURE OF THE INVENTION The present invention forms a coating film of high strength, high performance and uniform performance, which cannot be obtained by the surface transparent film of the conventional decorative plate for building materials as described above, and has a smooth surface. It is possible to finish the appearance from to the fine uneven surface. Furthermore, it is a manufacturing method for obtaining a transparent film that provides a decorative plate for building materials that has a relatively thin film with excellent quality strength and contributes to design improvement by reducing the amount of paint used and realizing economic efficiency. .

[0007]

In order to achieve the above-mentioned object, the method for producing a surface transparent film of a decorative board for building materials according to the present invention is applied to the surface of a wood-based, cement-based, ceramic-based, metal-based or resin-based plate-shaped material. The surface of the liquid curable resin coating before curing is applied by applying the transparent liquid curable resin coating almost uniformly on the surface of the decorative substrate for building materials that has been designed by direct printing, printing paper pasting, printing film pasting, coloring painting, etc. In the transparent inorganic solid glass beads having a diameter in the range of 0.05 to 0.3 mm, the lower part is embedded with a glass bead having a diameter difference range of about 10% both in size and around the arbitrary diameter. Are abutted in the state of being adhered, and substantially abutted or brought into contact with each other to be adhered. After that, the surface with a smoother surface than the top surface is pressed uniformly, and the vertices of all glass beads are against the surface of the decorative substrate for building materials.
Make them parallel and at the same height.

Next, the glass bead is pressed by pressing the glass bead.
The surface of the liquid curable resin coating material that is extruded and raised from the gaps is flattened by blowing hot air for a short time and then cured, and the glass beads are fixedly adhered. After that, the transparent liquid curable resin coating is applied almost evenly on the entire surface of the glass beads where the top of the bead is exposed and fixed, and then cured.
A transparent resin film is formed. A method of forming a transparent film having one layer of transparent glass beads in which the tops are arranged at the same height is formed on the substantially transparent curable resin layer.

[0009]

According to the method for producing a transparent film of the present invention, all the vertices are parallel to the surface of the decorative substrate for building material even when the transparent resin film layer is used in combination with transparent glass beads having slightly different diameters. It is possible to form one layer in a state in which a myriad of closely adjacent rows are formed at the same height. Accurate fixation of virtually all glass bead vertices to the same height results in even loading of all the glass bead vertices in the parts subjected to various loads from the outside, and enables maximum strength. It achieves high strength that is not comparable to surface structures with different peak heights.
It is also very effective in the process of post-coating a transparent resin film on the surface of the glass bead layer in accordance with design improvement such as smooth surface and uniform uneven surface.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the method for producing a surface transparent film of a decorative substrate for building material according to the present invention will be described in detail below with reference to the drawings. The figure is an enlarged cross-sectional view of a main part in the order of processing steps. As shown in the cross-sectional view of FIG. 1, a transparent liquid curable resin 2 paint having an appropriate holding viscosity is applied to the surface of a decorative substrate 1 for building material having a design layer 1a on its surface by using a roll coater or the like. And approximately evenly apply it to a thickness of about 20% or 30% of the glass bead diameter length used in the next step.

Next, as shown in the sectional view of FIG.
Among the transparent inorganic solid glass beads having a diameter of 0.3 mm, a glass bead 3 having a diameter difference range of about 10% both in size and size around a product having an arbitrary diameter is provided with a transparent liquid curable resin 2 paint. Before being hardened, it is brought into contact with the surface when it is in a liquid state, a part of the lower part is embedded, and it is adhered in a state of substantially abutting or adjoining. Next, the one having a smoother flat surface than that of the upper part, for example, a press plate or a press roll is used to uniformly press the lower part of the glass bead 3 into the uncured transparent liquid curable resin 2 paint layer. . Virtually all glass beads
The vertices of the ridges 3 are arranged parallel to the surface of the decorative substrate for building material 1 at the same height. As a result, as shown in the cross-sectional view of FIG. 3, the uncured transparent liquid curable resin 2 coating material is pushed up from between the glass beads 3 by the pressurization of the glass beads 3 and rises.

Next, a transparent liquid curable resin 2 which is uncured from above is used to cause a rapid decrease in viscosity only in the upper layer of the paint 2.
After hot air of about 0 to 300 degrees is blown for a very short time to flatten the surface, the transparent liquid curable resin 2 coating material is cured and the glass beads 3 are fixedly adhered as shown in FIG. After that, apply a transparent liquid curable resin coating on the surface almost evenly,
The transparent resin film 4 is formed by curing. FIG. 5 is a sectional view when the transparent resin film 4 is formed as a thin film. FIG. 6 shows the transparent resin film 4
FIG. 6 is a cross-sectional view when the film is formed of a thick film.

Further, the above-mentioned transparent liquid curable resin 2 coating material and the transparent resin film 4 may be mixed with a small amount of fine powder of a design material or coloring that does not impair transparency.

[0014]

EFFECTS OF THE INVENTION According to the method for producing a transparent surface film for a decorative substrate for building materials of the present invention, the load from the outside is evenly distributed at the numerous apexes of the glass beads having a single top portion, for example, 0.
When a glass bead with a diameter of 1 mm is used, the load will be evenly distributed at the apex of about 10,000 glass beads per square cm, and it will not be possible to withstand the strength performance unique to each transparent resin. It is possible to have excellent strength against various loads from the outside.

The glass beads to be used are inorganic transparent and have excellent solid sphericity, and it is easy to divert various loads from the outside due to their individual shapes, and the glass beads are applied on a decorative substrate for building materials. This is the most effective shape for preventing air from being trapped in the lower part of the glass beads even when the glass beads are embedded in the transparent liquid curable resin coating layer used for the purpose of adhering and fixing the beads by pressurization. Further, the top portion of the glass bead having a transparent resin film formed on the glass bead layer has an optimum shape for preventing a tear from the inside when an external load is applied.

Since the glass beads are in contact with or close to each other on the entire surface of the transparent film, after the glass beads are fixed and adhered,
When the transparent liquid curable resin coating was applied and cured almost evenly from the upper surface of the glass beads, the entire surface was finely divided by the glass beads fixed in the previous step, and the transparent liquid curable resin coating was cured. Shrinkage and distortion can be finely differentiated between the glass beads and evenly dispersed to ensure uniform quality of the entire transparent film. As described above, an epoch-making effect can be given to the improvement of the strength of the transparent film and the uniformization of the performance of the entire film surface.

Although it is essential to improve the design of the substrate as a transparent film on the surface of the decorative substrate for building materials, it gives a perspective and a film thickness greater than the actual film thickness due to the refraction and reflection characteristics of light rays into the glass beads. I can express a feeling. As for the outer surface finish shape, a uniform arrangement of the glass bead tops at the same height can be performed in various ways, from an uneven surface using the exposed portions of the glass beads to a smooth surface filling the glass bead tops. Inorganic transparent solid glass beads have excellent intrinsic strength, a very high sphericity, and at the same time are economical in terms of cost. By using glass beads in this way, the surface transparent film of the decorative substrate for building materials, which has a remarkable effect on the improvement of physical performance, the homogenization of quality, and the improvement of design, is economically and processing-wise. This is an epoch-making method that enables stable and reliable production at relatively low cost.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part after a transparent liquid curable resin coating material is applied to the surface of a decorative substrate for building materials during the process of the transparent film manufacturing method of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part after the inorganic transparent glass beads are brought into contact with the transparent liquid curable resin coating material layer during the process of the transparent film manufacturing method of the present invention.

FIG. 3 shows a glass beer during the process of the transparent film manufacturing method of the present invention.
FIG. 7 is an enlarged cross-sectional view of the main part after the top of the head is evenly pressed with a flat surface.

FIG. 4 is a view showing a glass beer during the process of the transparent film manufacturing method of the present invention
FIG. 3 is an enlarged cross-sectional view of a main portion after the adhesive is fixed to a decorative board for building material by curing a transparent liquid curable resin coating material.

FIG. 5 is an enlarged cross-sectional view of a main part after a transparent resin film is formed as a thin film on the glass bead surface.

FIG. 6 is an enlarged cross-sectional view of a main part after a transparent resin film is formed as a thin film on the glass bead surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative substrate for building materials 1a Design layer 2 Transparent liquid curable resin 3 Glass beads 4 Transparent resin film

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B32B 21/08 27/00 E 8413-4F

Claims (5)

[Claims] 1. A transparent liquid curable resin coating material is applied substantially uniformly on the surface of a decorative board for building materials, and a glass bead having a diameter of 0.05 to 0.3 mm is formed on the surface of the liquid curable resin coating material before curing. Are abutted in a state where they are embedded, and substantially abutted or brought into contact with each other to be adhered. After that, the entire surface of the glass bead is pressed uniformly with a flat surface having a smoother surface than the upper surface so that the vertices of substantially all glass beads are aligned in parallel with the surface of the decorative substrate for building materials at the same height. Next, the surface of the liquid curable resin coating material extruded from between the glass beads by the pressurization of the glass beads and raised is flattened by blowing high temperature air for a short time and then cured to fix and bond the glass beads. . After that, a transparent liquid curable resin coating material is applied substantially evenly to the entire surface of the glass beads where the top portion is exposed and fixed, and then cured to form a transparent resin film. A glass beer whose tops are substantially level with the transparent curable resin layer
A method for producing a transparent surface film of a decorative substrate for building material, which is provided with a single layer. 2. The glass bead of claim 1 is an inorganic transparent solid product having a diameter of 0.05 to 0.3 mm, and the size of the glass bead is about 10% both in size and around an arbitrary diameter. A method for manufacturing a transparent surface film of a decorative substrate for building materials, which uses products with different diameters. 3. A transparent liquid curable resin coating used for fixing and adhering the glass beads according to claim 1 to a decorative substrate for building materials, the position of the glass beads due to the weight of the glass beads to be fixed even during the curing reaction. A method for producing a transparent film on the surface of a decorative substrate for a building material, which uses a transparent liquid curable resin coating material having an appropriate holding viscosity that hardly changes. 4. A transparent liquid curable resin paint is used on the surface of the decorative substrate for building material according to claim 1, 2 or 3 so that substantially all glass beads have the same top height. A method for producing a transparent surface film of a decorative decorative substrate for building material, which is exposed and fixed. 5. The above decorative substrate for building materials is directly printed, pasted with printing paper, pasted with printing film, colored coating, etc. on the surface of a wood-based, cement-based, ceramic-based, metal-based, or resin-based plate-shaped material. Of manufacturing a transparent surface film of a decorative substrate for building material using the plate-shaped material.