JPS581599A - Manufacture of resin object of craftwork - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing resin crafts.

2. Description of the Related Art Conventionally, various accessories have been manufactured using synthetic resin as a material, and the following methods of manufacturing accessories such as brooches are known. That is, as shown in Fig. 1, first, a hemispherical transparent cap 1 is prepared (see Fig. 1 (a)), and separately, a predetermined amount of transparent liquid synthetic resin is cured with one or more types. A predetermined amount of synthetic resin liquid is prepared by mixing a predetermined amount of the agent, and then a predetermined amount of the synthetic resin liquid 2 is injected into the pre-P cap 1 and kneaded for a predetermined period of time. Harden the resin liquid 2 until it becomes jelly-like or can-like (see Figure 1 (f)
3)). After that, for example, dry flowers 4 are placed on the synthetic resin 6 that has hardened into a shape in the cap 1. Then, the synthetic resin liquid 2 is placed inside the cap 1 again. The synthetic resin liquid 2 in the cap 1 is hardened until it becomes jelly-like or liquid-like. Further, a colored synthetic resin liquid 5 obtained by blending one or more types of curing agent and coloring agent with a transparent liquid synthetic resin is injected onto the surface of the jelly-hardened synthetic resin filter (see Figure 1). (See g.)) Then, the cap 1 is left for a predetermined period of time until the synthetic resin 3 and the colored synthetic resin liquid 5 are completely cured. After a predetermined period of time has elapsed, a metal substrate 6 is adhered with adhesive to the flat surface of the cap 1 filled with a cured synthetic resin (hereinafter referred to as cured synthetic resin) to complete the broach.

However, in the above method, the gap 1 is divided into two times.
If the curing time of the injected synthetic resin liquid 2 is different, the K
Therefore, the portion 3α of the cured synthetic resin π where the oil welding rate is different, and the filter b
Dried flowers are buried in hardened synthetic resin.
4 may appear distorted, which reduces its value as an accessory. In addition, in the above method, when the colored synthetic resin liquid 5 is injected and the cured synthetic resin is bonded to the metal substrate, the adhesive and the metal substrate become transparent and cannot be seen through the cured synthetic resin, and This is because it becomes the background color of the dried flowers 4 and makes them stand out. However, since the types of colors of the coloring agent contained in the colored synthetic resin liquid 5 are limited to simple primary colors, depending on the above method, a background color that slightly changes color depending on the viewing direction, such as iridescent or pearlescent, may be produced. Accessories such as colored brooches 1. It was completely impossible to manufacture. Furthermore, in the method, the synthetic resin liquid 2'f- has to be injected in two parts;
1-Maybe it's dry flower-4 if the first injected synthetic resin liquid 2 has hardened into a jelly-like state? Furthermore, since the synthetic resin liquid 2 cannot be injected a second time, the manufacturing process is increased and complicated.

This invention was made in view of the above-mentioned circumstances, and an object thereof is to provide a simple method for manufacturing a resin craft having a background color that causes a subtle color change like pearl luster depending on the viewing direction. It is.

Next, one embodiment π of the present invention will be explained with reference to the drawings.

FIG. 2 is a process diagram showing an embodiment of the present invention.

When manufacturing accessories, such as brooches, as resin crafts, first, cut an appropriate part 12a of a washed abalone shell 12 into a shape approximately equivalent to the opening of the cap 10 (see Fig. 2). See A), then cut out shell piece 13? Shape b2 into a predetermined shape. In other words, the size of the cut shell piece 13 is determined so that it can be fitted into the opening of the cap 10 (see FIG. 2). In this case, if a slightly tapered tube is attached to the outer periphery of the shell piece 1, fitting of the shell piece 13 into the opening of the cap 10 can be facilitated.

In addition, when the outer surface of the shell piece 13 has irregularities, the outer surface of the shell piece 13 may be coated with a coating to form a flat surface K1. It is preferable to leave it at This is because if the outer surface of the shell piece 13 is flat R6, it will sit better when the outer surface of the shell piece 13 is bonded to the metal substrate in the final step.

Next, a transparent cap 10 with a shape such as a hemispherical shape that allows the desired brooch to be obtained [a predetermined amount of transparent synthetic resin liquid 11k is injected (see Fig. 2 (Q)).The synthetic resin liquid 11 is It can be prepared by mixing one or more types of curing agent with a transparent liquid synthetic resin in a predetermined mixing ratio immediately before injecting it into the cap 10.As a transparent liquid synthetic resin, a transparent linear high Molecules such as saturated or unsaturated polyester resins, polyacrylic resins, etc. may be used, and as curing agents, compounds capable of cross-linking linear polymers such as benzoyl peroxide and di-t-butyl peroxide may be used. , azobisisobutyronitrile, styrene monomer, etc.

A particularly simple method for preparing the synthetic resin liquid 11 is to blend the curing liquids 1 to 1 and B to a polytil whose main component is an unsaturated polyester resin, which is well known in the field of resin crafts. In this case, it is preferable that the blending ratio of polycil and curing liquids N and B be appropriately determined so that the synthetic resin liquid 11 is cured in about day and night after the curing liquids A and B are blended with polycil. If the amounts of the curing liquids A and B are too large, the synthetic resin liquid 11 will generate heat and harden in a short period of time, causing inconveniences such as damage to the transparent cap 10, so such inconveniences are avoided. Thus, it is important to gradually harden the synthetic resin liquid 11 over a period of approximately 1 day and night. The amount of synthetic resin liquid 11 injected into the transparent cap 10 is such that when the shell piece 1 is inserted into the opening of the transparent cap 10, the synthetic resin liquid 11 will not overflow from the transparent cap 10. It is preferable to adjust the fit so that there are no air layers or bubbles on the lower surface of the fitted shell piece 13.

Next, a transparent cap 10 filled with synthetic resin liquid 11 is attached.
The shell piece 13 is inserted into the opening K of the shell piece 13 so that the inside of the shell piece 13, that is, the surface having pearlescent luster is in contact with the synthetic resin liquid 11 (Second ('11 (see Q)).

In this case, the completed brooch can be made even more beautiful by adhering a molded object or a decorative object, such as a prize ball 14, in advance to the shell pieces 15 to be fitted. Furthermore, it is important to prevent air bubbles from forming in the synthetic resin liquid 11 when fitting the shell piece 13f. If air bubbles occur between the shell piece 13 and the synthetic resin liquid 11, not only will the bond between the shell piece 13 and the cured synthetic resin after the synthetic resin liquid 11 harden be poor, but the background color of the completed brooch will change. This is because a certain pearlescent luster is hindered.

Therefore, first, after gluing the model to the inside of the shell piece 1, pour a small amount of polychill liquid around it and harden it (approximately 2
The purpose can also be achieved by preparing in advance a material that has been cured in ~6 hours), and then filling the cap 10 with the polychill solution and fitting the shell piece 1 into the cap 10. good.

After inserting the shell piece 1 into the opening NXVr of the transparent cap 10, leave it for about 1 inch day and night until the synthetic resin liquid 11 becomes hard. After the synthetic resin liquid 11 is cured to become a cured synthetic resin 15, the metal substrate 16K of the broach and the outer surface of the shell piece 13 to be bonded to the cured synthetic resin 15 are adhered with an appropriate adhesive to complete the brooch ( (See Figure 2 0)
.

The brooch manufactured by the above method has the shell pieces 13 fitted over the entire bottom surface, and the shell pieces 13
The transparent hardened synthetic resin 15 is formed in a hemispherical shape on the pearlescent surface of the brooch, so depending on the direction from which you look at the brooch, the brooch has a subtle shape due to the lens action of the transparent or hardened synthetic resin 15. Can exhibit color changes.

Furthermore, in the first brooch, the synthetic resin liquid 11 is gradually cured by π over a long period of time, so that the refractive index of the cured synthetic resin 15 is uniform, and the pearls 14 embedded in the cured synthetic resin 15 are not distorted. h〈Able to see through.

Above, one implementation of this invention Ffl1M has been described in detail.
This invention is not limited to the above-mentioned implementation and includes various modifications without departing from the gist of the invention.

Although the above embodiments were related to a method for manufacturing a brooch as an accessory, the method of the present invention is not limited to manufacturing a brooch, but can be applied to various items such as rings, pendants, buckles, tie pins, cufflinks, and belt fasteners. It can be applied to the production of accessories and other crafts. In that case, the transparent cap into which the synthetic resin liquid is injected is the type of craft product f.
Depending on the situation, various shapes other than hemispherical may be used.

For example, a transparent cap in which the shape of the cured synthetic resin is shaped like a crystal cut π, or a transparent cap in the shape of a teardrop can be used as appropriate. In the above example, abalone shells were used as the material for the shell pieces, but any shell may be used as long as the inner surface has pearlescent luster. For example, Mexican shellfish can also be suitably used. Further, in the *jr@e embodiment, a pearl was used as the object to be enclosed in the middle, but other jewelry, animal models, etc. may also be used.

According to the method of the present invention described in detail above, resin crafts with a background color that subtly changes depending on the viewing direction, such as pearl luster, which could not be obtained using conventional manufacturing methods, can be easily produced. It can be obtained by a process. Furthermore, according to the method of the present invention, a resin craft 1r whose cured synthetic resin has a uniform refractive index can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a process diagram showing a conventional method for manufacturing a resin craft, and FIG. 2 is a process diagram showing an embodiment of the present invention. 10... Transparent cap, 11... Synthetic resin liquid, 12... Abalone shell, 13... Shell piece.

Claims (2)

[Claims] (1) After cutting out a shell with a predetermined shape, insert the shell piece into the opening of a transparent cap filled with a transparent synthetic resin liquid, so that the pearlescent surface of the shell piece is made of synthetic resin. A method for manufacturing a resin craft, characterized by fitting the synthetic resin in close contact with the liquid, and then gradually hardening the synthetic resin liquid. (2) The method for manufacturing a resin craft according to claim 1, wherein the shell is an abalone shell.