JPH0516156A - Patterning method for artificial stone - Google Patents

Abstract

PURPOSE:To effectively conserve the wasteful injection time of a mixed slurry and the curing time and demolding time of the mixed slurry by applying pigment to a mold in a first process injecting the mixed slurry. CONSTITUTION:The upper surface of a mold 3 is coated with pigment 2. Subsequently, a mixed slurry 1 containing a resin and a filler is injected in the upper surface of the mold 3 coated with the pigment 2 to perform the patterning of an artificial stone. By applying the pigment 2 in the first process injecting the mixed slurry 1 as mentioned above, high-degree skill is not required in a worker and it can be confirmed in what manner a pattern is formed at the point of time when the process coating the mold 3 with the pigment 2 is completed and, since a worker can perform patterning visually, an artificial stone having light and shade patterns of the same size can be prepared repeatedly and continuously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial stone used for, for example, a table, a counter which constitutes a vanity, a soap dish, etc., and more particularly to a method for attaching a pattern such as a flow pattern to the artificial stone. is there.

[0002]

2. Description of the Related Art For counters and the like that make up tables and vanities, due to the high cost and difficulty of processing due to the use of natural stone, pigments have been added to the conventional mixed slurry of resin and filler to create a handle. Artificial stones used are often used. And, as shown in FIG. 6, the artificial stone pattern is conventionally
First, the mixed slurry 1 of the resin and the filler is poured into the container C, the pigment 2 is linearly applied thereon, and then the mixture in the container C is placed on the upper surface of the mold 3 as shown in FIG. Slurry 1
8 and the pigment 2 are allowed to flow and be cured.
As shown in (1), an artificial stone 5 having a streaky flow pattern formed by the pigment 2 on the upper surface is obtained.

[0003]

However, in the conventional patterning method described above, the natural stone-like flow pattern is the artificial stone 5.
It is extremely difficult to pour it on the upper surface of the mold 3 so that it is formed in the above, and the operator is required to have a high degree of skill, and the size and shade of the handle tend to be different each time the handle is attached,
It is not possible to mass-produce artificial stone having the same size and the same shade pattern. Further, in the conventional patterning method described above, the pattern formed can be confirmed only after the artificial stone 5 in which the mixed slurry 1 is hardened is removed from the mold 3 from the mold 3.

Therefore, the present invention has been proposed in order to solve the problems of the above-mentioned conventional artificial stone patterning method, and does not require a high degree of skill for the operator, and the same. An object of the present invention is to provide an artificial stone patterning method capable of mass-producing artificial stones having the same shade pattern as the size and confirming the pattern before demolding the molded product from the mold. To do.

The present invention has been proposed in order to achieve the above object, and includes a step of applying a pigment on the upper surface of a mold, and a resin and a filler contained on the upper surface of the mold on which the pigment is applied. And a step of injecting the mixed slurry thus obtained. That is, according to the present invention, first, a pigment is applied to the upper surface of a mold, then a mixed slurry of a resin and a filler is injected, and then these are cured, and then the mold is removed to obtain a patterned artificial stone. It is characterized by that.

The method of applying the pigment according to the present invention uses a pigment or the like on the upper surface of the mold used for molding the artificial stone (the molding surface for molding the surface layer surface of the artificial stone to be molded). It is possible to adopt any method corresponding to a desired pattern to be formed on the artificial stone, such as a method of applying a pigment or a method of using a roller or a method of spraying a pigment from above by using a mask plate as described later. Good. Incidentally, as the resin constituting the present invention, those conventionally used in this type of artificial stone such as unsaturated polyester resin and acrylic resin may be used, and as the filler mixed with this resin, What is conventionally used may be used, but aluminum hydroxide,
A glass frit or the like having a light refractive index similar to that of the resin used above is used. By using such a material having a light refractive index similar to that of resin, it is possible to impart a certain degree of translucency to the created artificial stone, and present a high-quality texture with a three-dimensional effect that is closer to that of natural stone. It can be an artificial stone.

Further, as the pigment constituting the present invention, various pigments which are also used in the artificial stone of this kind may be used, and it is appropriately determined according to the kind of the artificial stone to be manufactured, but at least It is assumed that a pigment having a color different from the color of the filler is used, and when a plurality of flow patterns are to be produced in a plurality of colors, a plurality of color pigments may be used accordingly. The pattern formed by the pigment is not limited to the flow pattern as described above, but may be a pattern in which triangles and quadrangles are scattered, a geometric pattern, or a pattern such as letters and figures.

[0008]

According to the artificial stone patterning method of the present invention, the pigment is not injected onto the upper surface of the mold at the same time as the mixed slurry, but the step of applying the pigment to the mold is performed in the step before the injection of the mixed slurry. Since it is carried out, it does not require a high degree of skill for the operator, and how the handle is created at the end of the step of injecting the mixed slurry, that is, the step of applying the pigment to the mold. Since it is possible to confirm whether or not the desired handle cannot be obtained, the production of the artificial stone can be stopped before injecting the mixed slurry. In addition, since the operator can perform patterning while visually checking in the preceding step of injecting the mixed slurry into the mold in this manner, the artificial stone having the same size and the same shade pattern is repeatedly manufactured continuously. be able to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The artificial stone patterning method according to the present invention will now be described in detail with reference to the drawings. First, a first embodiment of the present invention will be described. The artificial stone patterning method according to the first embodiment is characterized in that the pigment is applied to the upper surface of the mold by using a roller in a step prior to the step of injecting the mixed slurry into the mold. is there. As shown in FIG. 1, this roller 10 has a cylindrical roller body 10
a, a support bar 12 whose one end side rotatably supports the roller main body 10a, is bent in a substantially U shape, and has a handle 11 fixed to the other end side, and the roller main body 10a. And a plurality of pigment impregnated portions 13 formed on the outer peripheral surface 10b. The pigment impregnated portion 13 is
In this embodiment, a belt-shaped nonwoven fabric is wound around the outer peripheral surface 10b of the roller body 10a, and the width of each pigment-impregnated portion 13 is not constant but curved in a wavy shape. It should be noted that the pigment impregnating portion 13 may be made of other material as long as it is a material that can be impregnated with the pigment, such as sponge, without using the non-woven fabric as described above. Hereinafter, a method for obtaining a patterned artificial stone using the roller 10 will be described in the order of steps.

First, a plurality of pigment impregnating portions 13 formed on the roller 10 are impregnated with a pigment in a tray (not shown), and as shown in FIG. By rotating 10a, the pigment 2 impregnated in the pigment impregnating portion 13 is transferred onto the upper surface of the mold 3, and a plurality of flow patterns are drawn on the mold 3. When the gel coat layer is formed on the surface of the artificial stone to be molded, the gel coat resin is applied to the upper surface of the mold 3 in advance before using the roller 13. Then, after the patterning by the roller 10 is completed, as shown in FIG. 3, a rectangular frame body 14 is fixed to the upper surface of the mold 3, and then the frame body 1 is formed.
The mixed slurry 1 of the resin and the filler in the container C is injected into the container 4. Then, after the mixed slurry 1 is cured,
The mold is removed from the frame 14 and the mold 3. Through the above steps, the artificial stone 5 having the flow pattern shown in FIG. 8 formed on its surface is obtained.

According to the method described above, since the pigment 2 for forming the flow pattern is applied by using the roller 10 described above, it is not necessary for the operator to have a high level of skill and anyone can easily perform it. The flow pattern can be drawn, and the artificial stone 5 on which the same flow pattern is formed can be repeatedly manufactured. Moreover, since the flow pattern formed on the artificial stone 5 can be confirmed in the previous step of injecting the mixed slurry 1, if the improper pattern is formed, the useless mixed slurry 1 is formed. Therefore, the injection time of the mixed slurry 1, the curing time of the mixed slurry 1 and the demolding time can be effectively saved.

In the above embodiment, the roller 10 is used as a method for applying the pigment 2 to the upper surface of the mold 3. However, it goes without saying that the present invention uses the roller 10 to apply the pigment 2. Not limited to the method of applying,
The pattern attaching method according to the second embodiment described below may be adopted. That is, in the pattern attaching method according to the second embodiment, as shown in FIG. 4, a strip-shaped opening 16 is formed on a rectangular flat plate.
As shown in FIG. 5, a mask plate 16 having a plurality of openings a is fixed above the mold 3 through fixing means (not shown),
The pigment 2 is sprayed from above the mask plate 16 by a spraying device 17, whereby a flow pattern corresponding to a plurality of openings 16a formed in the mask plate 16 is drawn on the upper surface 3a of the mold 3. In addition, pigment 3
The process after applying is performed in the same process as the process described in the first embodiment.

Even in the case of the patterning method according to the second embodiment described above, the same operation and effect as those of the method described in the first embodiment can be obtained. In particular, in the case of applying a pattern by this method, by changing the shape of the opening 16a of the mask plate 16, not only the flow pattern described above, but also a pattern or a geometric pattern composed of figures such as circles and triangles. Further, a pattern with a combination of characters and figures can be added.

[0013]

As is clear from the description of each of the above embodiments, according to the artificial stone patterning method of the present invention, the pigment is simultaneously applied to the upper surface of the mold at the same time as the mixed slurry as in the conventional patterning method. Since the step of applying the pigment to the mold is performed in the pre-process of injecting the mixed slurry, instead of injecting it into the mold, the operator does not need to have a high degree of skill, and the mixed slurry is injected. It is possible to confirm what kind of pattern was created on the upper surface of the mold at the end of the previous step, that is, the step of applying the pigment to the mold, so if the correct pattern is not completed, inject the mixed slurry. Manufacture of artificial stone can be stopped before doing. Therefore, useless injection time of the mixed slurry 1, curing time of the mixed slurry 1 and demolding time can be effectively saved.

In addition, since the operator can perform patterning while visually checking in the preceding step of injecting the mixed slurry into the mold, the artificial stone having the same size and the same shade pattern is repeatedly continued. Can be manufactured.

[Brief description of drawings]

FIG. 1 is an external perspective view of a roller used in a method for attaching a handle for an artificial stone according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a process of applying a handle to the upper surface of a mold by using a roller.

FIG. 3 is a perspective view showing a step of injecting a mixed slurry after the patterning step is completed.

FIG. 4 is a plan view showing a mask plate used in the artificial stone pattern attaching method according to the second embodiment.

5 is a side view schematically showing a step of applying a pigment using the mask plate shown in FIG.

FIG. 6 is a perspective view for explaining a conventional patterning method and is a schematic view showing a state in which a mixed slurry and a pigment are contained in a container.

FIG. 7 is a perspective view showing a state in which the mixed slurry and the pigment in the container shown in FIG. 6 are flowed on the upper surface of the mold.

FIG. 8 is an external perspective view of a patterned artificial stone.

[Explanation of symbols]

 1 Mixed slurry 2 Pigment 3 type 5 Artificial stone

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B29L 31:44 4F

Claims (1)

Claim: What is claimed is: 1. A step of applying a pigment to the upper surface of a mold,
A method for adding a handle to an artificial stone, comprising at least a step of injecting a mixed slurry containing a resin and a filler onto the upper surface of the mold coated with the pigment.