JPS58101010A - Manufacture of decorative article with three-dimensional structure - Google Patents

Abstract

PURPOSE:To obtain a lampshade or the like with simple process and good workability, by placing a first flexible sheet on a support plate, pouring a thermosetting resin liquid thereon, placing a second flexible sheet onto said resin liquid, allowing said resin liquid to gel partly, and then forming the resin by a mold. CONSTITUTION:A first flexible sheet 5 such as a polyester film or the like is placed on the support plate 3 such as a glass sheet, and a thermosetting synthetic resin liquid 6 such as unsaturated polyester resin or the like is poured thereon. Then a second flexible sheet 8 similar to the first flexible sheet 5 is placed on the resin liquid 6, and the resin liquid 6 is caused to gel partly to obtain a thermosetting resin 9 in a partly gelled state. The resin 9 is released from the support plate 3 together with the first and second sheets 5, 8 and is placed on a shaping mold 10 previously prepared and is shaped and set to obtain the aimed decorative article.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a three-dimensional decorative article with excellent decorative properties suitable for use as a lampshade, a flower vase, etc.

Conventionally, in order to obtain an ornament with this kind of three-dimensional structure, as shown in Fig. 1, a sealed mold (1) having an inner surface matching the external shape of the ornament to be obtained is prepared, and a W-shaped A thermosetting synthetic resin liquid (6) was poured into the cavity (2), cured, and then demolded to produce a product.

However, in such conventional methods, the production cost of the sealed mold itself is high, and the work of injecting synthetic resin liquid into the sealed mold and the work of opening and closing the sealed mold during demolding and assembly are cumbersome.9.

SUMMARY OF THE INVENTION The present invention aims to eliminate the drawbacks of the conventional methods for producing decorative articles and to provide a method for easily producing inexpensive, highly decorative three-dimensional structural ornaments. That is, the present invention places a first 7 lexiple mold on the pelvis,
A thermosetting synthetic resin liquid was poured onto the first 7-lexiple mold.

After placing a second flexible mold on top of the thermosetting synthetic resin liquid, the thermosetting synthetic resin liquid is semi-gelled to form a semi-gelled thermosetting synthetic resin, and then the thermosetting synthetic resin liquid is semi-gelled. Production of a three-dimensional structural ornament by separating the thermosetting synthetic resin from the pelvis together with a first flexible mold and a second flexible mold, placing it on a shaping mold, shaping it, and then hardening it. It concerns the method. The method for manufacturing a three-dimensional decorative article according to the present invention will be explained in more detail below.

The first flexible mold used in the present invention may be a polyester film, a polyvinyl vinyl film, a polyvinyl chloride film, a polyethylene film, a polypropylene film, or a film with an appropriate design screen printed on these films. These flexible molds can be used with a smooth surface, or they can be mechanically wrinkled to create a large number of irregular and messy uneven surfaces, and the front can be used with an embossing roll etc. to create regular patterns. It may also be used as a surface with irregularities.

When a film with a screen-printed design is used and this film is peeled off from a cured thermosetting synthetic resin, the screen-printed design is transferred to the thermosetting synthetic resin and can be configured as a decorative element. This first flexible mold is placed on a pelvis such as a glass plate, and then a thermosetting synthetic resin liquid is applied onto the first flexible mold. As the thermosetting synthetic resin liquid used here, unsaturated polyester resin, epoxy resin, epoxy acrylate resin, etc. can be used. A curing accelerator, a catalyst, a pigment, and a dye are added to these thermosetting synthetic resin liquids as necessary. Here, when applying thermosetting synthetic resin liquid on top of the first flexible mold, in order to increase the strength of the decorative product, glass fiber materials such as G2ScPS, nylon, vinyl A reinforcing material made of synthetic fibers such as woven fabric or non-woven fabric such as Tetoron may be embedded in a thermosetting synthetic resin liquid6.Also, natural and /l
Alternatively, an artificial decoration may be embedded in a thermosetting synthetic resin liquid either alone or in combination with the reinforcing material.

Next, a second flexible mold similar to the first 7 lexiful mold is placed on top of the nuclear thermosetting synthetic resin liquid, and then the wrinkled thermosetting synthetic resin liquid is placed at room temperature or by heating. It is gelled to form a semi-gelled thermosetting synthetic resin.

Next, a semi-gelled thermosetting synthetic resin (thermosetting synthetic resin in a state where fluidity has almost disappeared, but is not completely cured and has flexibility) is placed in a first flexible mold and The second flexible mold is detached from the pelvis and placed in whole or in part on a nine-shaping mold prepared in advance, and allowed to fit naturally into the shaping mold in one layer, or by using appropriate suppressing means. and press it onto a shaping mold to shape it.

The shaping mold used here is a synthetic resin mold or metal mold having a desired shape, such as a cone, a cylinder with a square pyramid, or even a complex and decorative irregular three-dimensional curved body. ,
You can use a wooden mold, etc.

In particular, when obtaining a decorative item with a complicated shape, the mold can be easily removed by using a polystyrene foam mold that can be dissolved in a solvent.

Next, the semi-gelled thermosetting synthetic resin molded while being sandwiched between the first 7 lexiple mold and the second flexible mold is placed on the mold for molding at room temperature or at room temperature. After being completely cured by heating or semi-cured to a state where the shape does not collapse even when removed from the mold, the mold is removed from the shaping mold, heated and completely cured, and then molded into the first 7 lexiple mold. Then, the second flexible mold is peeled off from the cured thermosetting synthetic resin or left attached to form a product.

As is clear from the above, the method for manufacturing a three-dimensional structural ornament of the present invention allows thermosetting synthetic resin to be produced in a flat state in one easy operation, and also allows for the production of thermosetting synthetic resins in a semi-gelling state. It is extremely effective because it can be placed on a shaping mold having a desired shape and shaped by utilizing the non-flowability and flexibility of the curable synthetic resin and the flexibility provided on both sides. Easy to operate and improves work efficiency.

It also has the advantage that an inexpensive open type can be used.

Embodiments of the present invention will be described below based on the drawings, but the present invention is not limited thereto.

Example 1 As shown in Fig. 2 (e), (b), e-)K, a bank-shaped frame (4) was provided on the glass receiving plate (3), and the glass was mechanically kneaded and wrinkled from above. Spread out the first polyester film (6) and place it thereon.
5) Pour on top.

Formula content.

Unsaturated polyester resin 100 parts by weight Cobalt naphthenate (curing accelerator) 1 part by weight Methyl ethyl ketone peroxide (catalyst) 1 part by weight Titanium white (
Pigment) 6 parts by weight Next, a thermosetting synthetic resin liquid (6 parts by weight) poured using a glass fiber mat as a reinforcing material (1).
) and then a second polyester film (8) which is the same as the first polyester film (5).
) Spread the gold and place it there to remove the air accumulated between the thermosetting synthetic resin liquid (6) and the second polyester film (8). Thereafter, it was left to stand at room temperature (2J-25°C) for about 5 minutes to semi-gel.6 Next, it was sandwiched between the first polyester film (5) and the second polyester film (8) from the glass receiver (3). In this state, lift up the semi-gelled thermosetting synthetic resin 11N (9) and separate it from the molding F, which will be described later.
Spread it out on the jll (10) and place it on the Mukuro It (10).
The nine portions placed on the It (10) are pressed to conform to the Q shape, and the lower portion (11) not in contact with the It (10) is left hanging naturally. Next, after leaving it for about 10 to 30 minutes at room temperature, the lower part (11) of the semi-gelled thermosetting synthetic resin (9) is cut at irregular locations to give the desired shape.

When the pattern does not change even after removal, the pattern (I)
While being held between the first polyester film (5) and the second polyester film (8), the semi-gelled thermosetting synthetic resin (9) is removed from the mold and heated. After completely curing in an open chamber, the first polyester film (8) and the second polyester film (8) are peeled off from the cured thermosetting synthetic resin to obtain a molded product. A decoration was obtained by drilling a hole in the upper part for a light fixture connection. The obtained ornaments were used in lampshades to produce excellent decorative effects.

As shown in Fig. 3, the used shaping mold (10) was first cut out from a plywood board (12) into a desired shape, fixed on a stand (3), and protruded from the top of the plywood board (12). Part (14
), and on top of that, heboristile/foam blocks (15
) and insert the wrinkled polystyrene foam block (15)
The plywood board (1'7) is stretched while tensioning the electrically heated nichrome wire (1'7) hanging from the fixing point (16) on the upper part.
Cut the polystyrene foam block (15) by moving it along the side edge (18) of 2), and then rub the top surface of the cut polystyrene foam block (5) with sandpaper to create a roughly spherical shape. It is finished as a curved surface.

Example 2 As shown in Fig. 4, a cylindrical mold (10) cut out of a polystyrene foam block was used as a shaping mold, and the same as in Example 1 was applied to the outer surface of the pattern mold (10). The semi-gelled thermosetting synthetic resin (9) sandwiched between the first polyester film (6) and the twentieth polyester film (8) produced under the same conditions is wrapped around the semi-gelled thermosetting synthetic resin. Remove a little of the joint part (19) of the circumference of the resin (9)]
After superimposing the polyester films (5) of ``BLM'' on each other, a thermosetting synthetic resin liquid (6) of the same composition as the round one used in Example 1 was poured into the joint part (19), and the outermost The polyester film (8) in Step 2 is sealed and bonded.After the thermosetting synthetic resin liquid (6) at the bonded portion (19) has gelled, half the gel is formed in the longitudinal direction of the cylinder. The end of the thermosetting synthetic resin
After trimming and reaching a state where it can be removed, it is removed from the cylindrical mold (lO) and sufficiently cured in a heated oven to form the first polyester film (5) and the second polyester film β). A molded product is obtained by peeling off the cured thermosetting synthetic resin, and an unsaturated polyester resin plate (20) having a smooth surface that will serve as the bottom is attached to one opening of the cylindrical molded product with adhesive. Attach it to get an ornament. The obtained decorative item was used as a flower vase and was tasteful.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a conventional method for manufacturing a three-dimensional decorative article, and FIG. 2 K), (B), and (C) are an embodiment of the manufacturing process for a three-dimensional decorative article of the present invention. 't kasu explanatory diagram, 2nd
Figure 3) is a cross-sectional view of Mu A' in Figure M2 (c), and Figure 3 is a cross-sectional view of the
Explanatory diagram showing the manufacturing method of the shaping mold shown in Figure (C), No. 4
5 is an explanatory diagram showing another embodiment of the present invention, and FIG.
Attach a bottom to the molded product shown in the figure and fill it with decorative items. 8... Second flexible mold 9... Semi-gelled thermosetting synthetic resin 10... Shaping mold patent applicant γ2-

Claims (1)

[Claims] A first flexible mold is placed on the receiver, and the first flexible mold is placed on the support.
After pouring a thermosetting synthetic resin liquid onto the flexible mold and placing a second 7 lexiple mold on top of the thermosetting synthetic resin liquid, the thermosetting synthetic resin liquid was poured into a semi-gel. Then, the semi-gelled thermosetting synthetic resin is removed from the pelvis together with the first flexible mold and the second flexible mold, and placed on the dispensing mold. A method for producing a three-dimensional structural ornament by placing it, shaping it, and then curing it.