JPH08276411A - Manufacture of artificial marble - Google Patents

Abstract

PURPOSE: To provide a method for manufacturing artificial marble which has a light weight and a bending strength and can manufacture a long product. CONSTITUTION: The method for manufacturing artificial marble comprises the first step of coating the inside of a form 12 in which the bottom becomes a flat surfacelike base glass 10 with mold release agent 13, the second step of coating the glass 10 in the form 12 with transparent resin 14, the third step of laying back-up material 16 of mixture of stone grains and resin on the resin 14, the fourth step of filling wood core material on the material 16 and further covering the upper surface and the periphery with the material 16, and the fifth step of removing artificial marble 19 completed after it is left to stand for a suitable time from the form 12.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for producing artificial marble.

[0002]

2. Description of the Related Art As a conventional method for producing artificial marble,
Terra elephant, in which marble particles are hardened with white cement to polish the surface, and artificial marble, in which stone particles such as marble or granite are mixed with resin and hardened, are known.

[0003]

However, all of the artificial marbles have a large specific gravity, and therefore, there is a problem that it takes time for construction, and further, there is a defect peculiar to stone materials that they are strong in compression but weak in bending. There was a problem that long objects could not be made. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method of manufacturing an artificial marble which is light and has bending strength and which is capable of manufacturing a long product.

[0004]

According to the first aspect of the present invention, there is provided a method for manufacturing an artificial marble according to the first aspect, which is a first step of applying a release agent to the inside of a formwork having a flat base glass at the bottom. A second step of applying a transparent resin on the base glass in the mold, a third step of laying a backup material which is a mixture of stone particles and a resin on the transparent resin, and a backup material on the backup material. It comprises a fourth step of putting a wooden core material and further covering the periphery and the periphery thereof with the backup material, and a fifth step of removing the artificial marble finished after leaving it for a suitable time. In addition, the method for producing an artificial marble according to the second aspect of the present invention includes a first step of applying a release agent to the inside of a mold whose bottom portion is a flat base glass, and a step of applying the release agent on the base glass in the mold. A second step of applying a color resin, a third step of laying a backup material which is a mixture of stone particles and a resin on the color resin, and a wooden core material placed on the backup material, and further on and around it. And a fifth step of removing the artificial marble finished from the mold after leaving it for a suitable time.

The method of manufacturing an artificial marble according to the third aspect of the present invention includes a first step of applying a mold release material to the inside of a mold having a flat base glass at the bottom, and a base glass in the mold. A second step of applying a transparent resin on the transparent resin, placing the pattern paper in a state where the transparent resin is in a dry state, and closely bonding the pattern paper to the transparent resin while removing air, and stone particles and resin on the pattern paper. A third step of laying a backup material which is a mixture of the above, a fourth step of putting a wooden core material on the backup material, and further covering the periphery and the periphery thereof with the backup material, and an artificial marble finished after being left for an appropriate time. And a fifth step of removing from the mold.

[0006]

In the method of manufacturing the artificial marble according to the first aspect of the present invention, first, in the first step, a release agent is applied to the flat base glass, and the artificial marble thus manufactured is peeled from the mold. The property is improved. Then, in the second step, a transparent resin is applied on the base glass, and in the third step, a backup material, which is a mixture of stone particles and resin, is laid, so the pattern of the stone particles can be seen from the surface, and the surface strength can be further improved. Is reinforced. In the fourth step, the wooden core material is put on the backup material, and the top and the periphery of the wooden core material are covered with the backup material, so that the wooden core material having a light specific gravity enters the inside, whereby the average specific gravity is increased. In addition, the wooden core material improves the bending strength, and the weight reduction makes it possible to make a long product. Then, in a fifth step, the finished artificial marble is taken out of the mold to complete the product.

In the artificial marble manufacturing method according to the second aspect of the present invention, the transparent resin is not used in the second step,
Color resin is used. Therefore, the surface of the finished artificial marble becomes colored, and the other functions are described in the first
This is the same as the method for producing an artificial marble according to the invention. Next, in the method for manufacturing an artificial marble according to the third aspect of the present invention, in the second step, a transparent resin is applied on the base glass, the pattern paper is placed in a state where the transparent resin is dry, and the air is evacuated. Since the pattern paper is closely adhered to the transparent resin, the pattern of the pattern paper can be seen through the surface of the finished artificial marble, whereby an artificial marble having an arbitrary surface pattern can be manufactured. Other functions are similar to those of the artificial marble manufacturing method according to the first invention.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. First, a method for manufacturing an artificial marble (method using pattern paper) according to the first embodiment will be described. As shown in FIG. 1, first, around the base glass 10 having a thickness of about 8 to 10 mm, a frame glass 11 having a thickness of about 3 mm is used.
To form a mold 12. It is also possible to use a vinyl chloride plate instead of the frame glass.
A mold release agent 13 is applied to the inside of the mold 12, and this mold release agent is for making the final product easy to remove from the mold 12. Soft 99, Furicoat manufactured by Nishii Paint Industry Co., Ltd.
Showa Polymer Co., Ltd.'s Popal and Nitto Chemical's Neopolish are used (above, 1st process). After the release agent 13 is applied, the transparent resin 14 is applied to
The transparent resin 14 is applied with a thickness of about 2 mm, but an unsaturated polyester resin is used as the transparent resin 14, and an appropriate amount of a shrinkage easing agent and a curing accelerator are mixed therein.

The transparent resin also includes a resin having a slight color such that the inside can be seen through (for example, a light pink color or a semitransparent color). With the transparent resin 14 in a dry state, the pattern paper 15 is placed from above and the pattern paper 15
While impregnating the transparent resin 14 with the transparent resin 14, the pattern paper 14 is closely fixed to the transparent resin 14 by removing the air inside.

Here, a special paper having good resin permeability is used as the pattern paper, and a marble pattern or the like is written as the pattern by printing (the above is the second step). After the pattern paper 15 is completely bonded to the transparent resin 14 by the above work, the backup material 16 in which the stone particles (including the case where stone powder is mixed) and the transparent resin are mixed is laid from the upper surface thereof. In this case, cold water stone (which includes a case where stone powder is mixed), which is relatively inexpensive, is used as the stone particles, but other stone particles or stone particles mixed with stone powder can also be used. Although the thickness of the backup material 16 varies depending on the thickness of the artificial marble to be manufactured, it is set to about 4 to 5 mm (the above is the third step). A plywood veneer board 17, which is an example of a wooden core material, is placed on the back-up material 16, and the plywood veneer board 17 is usually about 10 because of the thickness of the artificial marble that is manufactured.
The thickness is preferably less than about mm, and when the artificial marble is thin, the thickness is about half the thickness of the artificial marble.

The width of the plywood veneer board 17 is 10-15 mm less than the width of the artificial marble. In some cases, it is preferable to apply an auxiliary material that strengthens the veneer adhesion of the backup material to the plywood veneer plate 17.
As this auxiliary material, for example, a pioneer sealer manufactured by Kyushu Paint Co., Ltd. is used. On the plywood veneer plate 17, for example, a concrete block or the like is fixed at the top so as not to move. Next, the plywood veneer plate 17 is filled with the backup material 18 made of the same material as the backup material 16 without any gap (the above is the fourth step). After the resin is sufficiently cured through the above steps, the mold 12
The artificial marble 19 is completed by removing the artificial marble 19 (above, the fifth step).

Next, the difference between the artificial marble manufacturing method according to the second embodiment of the present invention and the artificial marble manufacturing method according to the first embodiment will be described. In step 3, the backup material 16 is immediately placed on the solidified transparent resin without arranging the pattern paper. As a result, the backup material 16 can be seen through from the surface of the artificial marble. For example, when the artificial marble is made to resemble a black shadow, it is made by mixing black stone particles and synthetic resin.
When making a white shadow, it is made by mixing an appropriate amount of white and black stone particles. Stones such as various natural marbles and granite are used as such stone particles. As a result, since stone particles can be seen inside through the transparent layer on the surface, an excellent artificial marble having a gloss on the surface is manufactured. Subsequently, the third aspect of the present invention
Regarding the method of manufacturing the artificial marble according to the embodiment of the present invention, the difference from the method of manufacturing the artificial marble according to the first embodiment will be described. In the second step, the color resin is poured in place of the transparent resin, and the artificial marble is manufactured. The surface color of the marble is determined and no pattern paper is used. An unsaturated polyester resin is also used as the main raw material of the color resin, and is appropriately colored with a pigment or the like. Since the stone particles used for the backup material cannot be seen from the surface, cold water stone or the like, which is relatively inexpensive, is used.

[0013]

The method of manufacturing an artificial marble according to the present invention comprises:
As is clear from the above explanation, since the wooden core material is contained in the middle part, the specific gravity of the manufactured artificial marble is small, and since the force against the bending moment is strong, it has a long strength with sufficient strength. The product can be easily manufactured.

[Brief description of drawings]

FIG. 1 is a sectional view of an artificial marble manufactured according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the artificial marble manufactured according to the first embodiment of the present invention.

[Explanation of symbols]

10 glass 11 frame glass 12 mold 13 release agent 14 transparent resin 15 pattern paper 16 backup material 17 plywood veneer board 18 backup material 19 artificial marble

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location C04B 26/02 C04B 26/02 C

Claims (2)

[Claims] 1. A first step of applying a mold release agent to the inside of a mold having a flat base glass at the bottom, and a second step of applying a transparent resin on the base glass in the mold. A backup material, which is a mixture of stone particles and resin, is laid on the transparent resin.
And a fourth step of putting a wooden core material on the backup material and further covering the periphery and the periphery thereof with the backup material,
A method for producing artificial marble, which comprises a fifth step of removing the finished artificial marble from the mold after leaving it for a suitable time. 2. A first step of applying a release agent to the inside of a mold whose bottom is a flat base glass, and a second step of applying a color resin to the base glass in the mold. A third step of laying a backup material, which is a mixture of stone particles and resin, on the color resin; and putting a wooden core material on the backup material,
A method for producing an artificial marble, which further comprises a fourth step of covering the above and the periphery thereof with the backup material, and a fifth step of removing the artificial marble that has been completed after leaving it for a suitable time from the form.