JPH02279400A - Preparation of illustrated artificial stone decorative product - Google Patents

Abstract

PURPOSE:To shorten a manufacturing time and to prepare a uniform artificial stone frame panel by preliminarily preparing an artificial stone having a square recessed part on the surface thereof. CONSTITUTION:An artificial stone frame panel 6 having a shallow recessed part 7 having an outer peripheral dimension slightly larger than that of baked photographic paper 3 preliminarily formed to the top surface thereof is prepared and the recessed part 7 of this artificial stone frame panel 6 is filled with a stone powder substantially same in quality to the constitutional component of the artificial stone frame panel along with a resin to form a stone powder-containing resin layer 8. Subsequently, the baked photographic paper coating 5 held on a mirror surface finish smooth plate 1 is superposed on and adapted to the surface of the stone powder-containing resin layer 8 before said layer 8 is perfectly cured. Then, the laminate of the artificial stone frame panel 6, the baked photographic paper coating 5 and the mirror surface finish smooth plate 1 is inverted and the stone powder-containing resin layer 8 is heated and cured under pressure to integrally fix the baked photographic paper coating 5 to the artificial stone frame panel 6. By this method, a manufacturing time is shortened and an artificial stone product is made uniform.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing artificial stone ornaments with photographs.Prior art The present inventor previously disclosed a method for manufacturing a mirror-finished smooth plate in a patent application published in 1986-32670. A resin film layer is formed on the semi-cured resin film layer, and when this resin film layer is in a semi-cured state, a dried photographic paper is placed over the semi-cured resin film layer with the photographic image side facing down, and an additional resin film is placed on top of it. After forming a layer and vacuum defoaming, a photographic paper is inserted between the eyebrows of the resin film layer in the form of a sandwich, and after the resin film layer is semi-cured or hardened, the resin film layer is placed on a smooth plate and is placed as desired. It is placed in a formwork with the shape of , and a resin liquid containing stone powder particles is injected from above under reduced pressure.A press plate is placed on top of it and the resin liquid is cured while applying pressure.After curing is complete, proposed a method for manufacturing artificial stone ornaments with photographs by removing smooth plates, formwork, etc.

Problems to be Solved by the Invention In the method according to the prior art described above, the substrate or base frame of the artificial stone is also formed during a series of steps, so the formwork and other equipment necessary for the manufacturing process require a large space. However, it also requires a long time to manufacture the product, and the finished artificial product cannot be uniform.

Means for Solving the Problems In order to solve the above-mentioned problems of the prior art, the present invention provides a method for manufacturing a photo-engraved artificial stone ornament, which comprises a combination of the following steps.

a) forming a first resin film layer on a mirror-finished smooth plate; and b) placing a dried printed photographic paper on the surface of the first resin layer with the photographic image side facing down. 21, and a step of forming a second resin film layer on the upper surface thereof to form a printing photographic paper covering body in which printing photographic paper is enclosed between the first resin film layer and the second resin film layer. and C) On the other hand, an artificial stone frame board is prepared in which a shallow recess with an outer circumference slightly larger than the size of the printing photographic paper is formed in advance on the top surface, and the recess is placed in the artificial stone frame board. a step of filling stone powder grains having substantially the same quality as the constituent components of the artificial stone frame board together with a resin to form a stone powder-containing resin layer; d)
Before the resin layer is completely cured of the stone powder grains, a step of polymerizing and applying a printed photographic paper coating to be held on the mirror-finished smooth board to the surface thereof, and the artificial stone frame board and the printed photographic paper. A step of inverting the laminate of the covering body and the mirror-finished smooth board, heating and curing the stone powder-containing resin layer while applying pressure, and integrally fixing the baked photographic paper covering body to the artificial stone frame board.

e) Function According to the present invention, since the above-mentioned steps are combined, the printing photographic paper covering body whose front and back surfaces are coated with resin in the form of a sandwich is applied to the temporary top of the pre-formed artificial stone frame. An artificial stone ornament with a photo is integrally fixed to the artificial stone frame plate by the stone powder-containing resin layer filled in the shallow recesses of the surface. The stone powder-containing resin layer that is filled into the shallow depressions on the surface of the artificial stone frame board will be in an inverted state when it hardens, so that the printed photographic paper covering and the stone powder-containing resin layer will be in an inverted state. The air bubbles existing at the boundary move to the bottom of the shallow recess of the artificial stone frame plate, so that the printing photographic paper is temporarily fixed to the artificial stone frame while maintaining a smooth surface.

Example A glass plate with a thickness of about 3 mm was used as a mirror-finished smooth plate. A thin layer of wax was applied as a release agent on the glass plate, and 0.04 g of cobalt naphthenate was applied as a hardening accelerator on top of this glass plate. %, and Permec as hardener 0
,08% unsaturated polyester resin (having a viscosity similar to that of starch syrup) was sprayed onto a thin first resin with a thickness of approximately 0.5 mm.
A resin film layer is formed and cured.

On the other hand, color photographic printing paper is irradiated with an infrared lamp,
Dry at about 70°C for 10 minutes. This is to remove moisture that later causes discoloration.

An intake pressure supply bag as shown in FIG. 9, with the glass plate having the above-mentioned first resin film layer on the surface facing up! (11) on the inner bottom (12). The intake pressure supply device (11) includes a box-shaped main body (13) and a lid body (1
4) between which an intake pressure supply chamber is formed.
The inner bottom surface (12) of the main body (13) is provided with intake pressure supply holes (14) at the four corners, which are connected to an external vacuum pump (not shown) through an intake pipe (15). There is. Therefore, if intake pressure is supplied through the intake hole (14) while the lid body (13) is sealed, the intake pressure supply bag! (11) The interior becomes a reduced pressure state or a vacuum state. As the lid (14), it is preferable to use a rubber plate suitable for the purpose described later.

After placing a glass plate (1) having a first resin film layer on its surface on the inner bottom surface (12) of the main body (13) of the intake pressure supply device (11) shown in FIG. Apply resin to form a membrane layer. The method of applying this resin is to add 0.04% cobalt naphthenate as a curing accelerator.
This is done by applying an unsaturated polyester resin containing (the viscosity is similar to that of the first resin H-forming), adding 0.1% of Permec as a hardening agent, and stretching it with a roller. I can do it.

On the surface to which the resin for forming the second resin film has been applied in this way, dry-treated color photographic printing paper is placed with the image side facing up, cellophane paper is placed on top of it, and then the rubber The lid body (14) is sealed. In this state, intake pressure is supplied to the intake pressure supply device (11), and the interior is depressurized and the resin layer is defoamed while being rolled from the outer surface of the rubber lid (14) to print a color photograph. Press it onto the resin layer on the glass plate. During this time, the resin forming the second resin film layer enters between the surface of the photographic paper and the cellophane paper placed on it from the four peripheral edges of the photographic paper, and reaches the point where it covers the entire surface of the photographic paper. As a result, a second resin film layer is formed on the surface of the photographic paper, and as a result, an integrated resin layer with a thickness of about 0.7 nm+m is formed in which the printed photographic paper is enclosed in a sandwich-like manner.

FIG. 1 shows a cross-sectional view of the printed photographic paper covering thus formed on the glass plate; (1) shows the glass plate;
(2) is the primary resin film layer, (3) is the printed photographic paper, (
4) shows the second resin film layer, and (5) shows the entire printed photographic paper covering.

On the other hand, prepare an artificial stone frame board with a shallow depression on the top surface. This artificial stone frame plate can be made by conventionally known artificial stone manufacturing techniques, for example, by hardening Tenri stone powder particles and calcium carbonate with an unsaturated polyester resin. FIG. 2 shows a longitudinal cross-sectional view of the artificial stone frame board prepared in this way. In FIG. 2, a shallow rectangular recess (7) with a depth of about 2 to 3 I is formed on the top surface of the artificial stone frame plate (6). It is preferable that the circumference of the recess (7) is slightly thicker than the circumference of the photographic paper (3). The peripheral edge frame (8) surrounding the recess (7) has a flat top surface (8a) and an inclined surface (8b) on the outside thereof.

According to the present invention, the recess (7) on the top surface of the artificial stone frame board (6)
is filled with stone powder and resin. The stone powder used is substantially the same as that used for forming the artificial stone (6), such as a mixture of marble powder and calcium carbonate powder, and this is mixed with 0.04% of a hardening accelerator and 0.04% of a hardening agent. Indentation of the composition mixed in unsaturated polyester resin containing 1% (7)
Fill it. This stone grain-containing resin composition is an artificial stone frame board (
The only difference from 6) for forming the main body is that it is a so-called resin lynch. FIG. 3 shows a state in which the recess (6) of the artificial stone frame plate is filled with a resin liquid containing stone powder particles.

(9) is a resin layer containing stone powder. 4 in the state shown in Figure 3.
As shown in the figure, leave it for about 1 minute until the stone powder-containing resin layer (9) becomes horizontal.

Next, place the printed photographic paper cover (5) placed on the glass plate (1) shown in FIG.
Place it so that the part 3) is exactly aligned with the recess (7) of the artificial stone (6) (Figure 5).
, turn the laminate consisting of the printed photographic paper covering (5) and the glass plate il+ upside down (Fig. 6), and heat the stone grains into the resin at 60°C for about 30 minutes while applying pressure. layer(
9) Harden. This hardening treatment can be easily carried out by placing it in an infrared oven.

When the printed photographic paper coating (5) is applied to the resin layer (9) containing stone powder particles on the surface of the artificial stone, air bubbles may form between them, but the air bubbles will disappear during the heat treatment in the condition shown in Figure 6. It rises and reaches the bottom of the concavity (7) of the artificial stone (in Fig. 6, the bubble is indicated by the symbol (10)), and the boundary between the printed photographic paper covering (5) and the stone dust-containing resin layer (9) is reached. It is possible to avoid remaining in the

After the hardening of the stone powder-containing resin layer (9) is completed, the glass plate (1,
) is released from the surface of the printed photographic paper covering (5).

This state is shown in FIG.

When pressurizing the laminate in the state shown in Fig. 6, a part (9') of the uncured stone powder resin layer (9) is removed from the periphery of the artificial stone frame board (6) as shown in Fig. 6. It will protrude outward.

After removing the glass plate, remove this protruding portion (9゛) from the unnecessary resin portion around the periphery of the printed photographic paper covering (5).
) to reveal the neat periphery of the artificial stone frame board. This state is shown in the enlarged view of FIG. As is clearer in the enlarged view of Fig. 8, in the finished product, the printed photographic paper covering (5) is placed on the surface of the artificial stone frame Fi (6) through the stone powder-containing resin layer (9). It has an integrated structure, and it is possible to obtain a beautiful artificial stone ornament with a photograph in which printed photographic paper is fitted into an artificial surface frame substrate.

Effects As is clear from the above, according to the present invention, artificial stone having rectangular depressions on the surface is manufactured and prepared in advance, so high-temperature heat treatment is not required when manufacturing the artificial stone frame board. It is possible to shorten the manufacturing time and make uniform artificial stone frame plates. In addition, since the manufacture of the artificial stone frame board can be carried out in a separate factory, the inlaying of the photo involves the process of enclosing the resin film in the shape of a sand inch between the eyebrows, and the resin containing stone powder particles necessary for crimping this onto the artificial stone. Because it only requires the use of
It can be reduced to 0 or less. Furthermore, the mechanical equipment used to sandwich the photograph between the front and back resin film layers under reduced pressure can also be made compact. Furthermore, since the resin layer on the photographic side is pressed to the stone dust-containing resin layer after it is completely cured, there is no distortion or distortion on the surface. Since the stone powder-containing resin layer is cured after the laminate is inverted, the air bubbles that should be trapped in the surface of the finished product move upward during the curing process, that is, toward the bottom of the recess of the artificial stone frame board. remains extremely smooth. Furthermore, by using stone powder particles with the same composition as the artificial stone, the adhesion with the artificial stone can be completely integrated.

As described above, according to the present invention, it is possible to produce more beautiful artificial stone ornaments with photos that are uniform and have less bad odor, in a small space and in a short time.

[Brief explanation of drawings]

Figures 1 to 7 are cross-sectional views of photo-embossed artificial stone ornaments according to the present invention in different manufacturing processes, Figure 8 is an enlarged cross-sectional view of the portion indicated by A in Figure 7, and Figure 9 is FIG. 2 is a perspective view of an intake pressure supply device used in an embodiment of the present invention. (1)...Glass plate (smooth plate) (2)...First resin layer (3)...Printed photographic paper (4)...Second resin layer (5 )... Printed photographic paper covering (6)... Artificial stone frame board (7)... Concave (8)... Resin layer containing stone powder (9)... Air bubbles (11)...Intake pressure supply device

Claims (1)

[Scope of Claims] a) forming a first resin film layer on a mirror-finished smooth plate; and b) applying dried printed photographic paper to form a photographic image surface on the surface of the first resin layer. Place it face down, and place the second
c) forming a second resin film layer to form a printed photographic paper covering in which printed photographic paper is enclosed between the first resin film layer and the second resin film layer; Prepare an artificial stone frame board in which a shallow recess with an outer circumference slightly larger than the size of the printing photographic paper is formed in advance, and inject the constituent components of the artificial stone frame board into the recess of the artificial stone frame board. d) filling stone powder particles of the same quality with resin to form a resin layer containing stone powder particles; d) before the resin layer containing stone powder particles is completely cured, the surface thereof is held on the mirror-finished smooth plate; e) inverting the laminate of the artificial stone frame board, the baking photographic paper covering and the mirror-finished smooth board, and applying pressure while applying the stone powder-containing resin layer; A method for producing an artificial stone ornament with a photograph, comprising the steps of heat curing and integrally fixing the printed photographic paper covering to the artificial stone frame plate.