JPH0310516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a marble-like decorative article in which a relief with a marble-like appearance is formed on a semi-transparent base.

(Conventional technology) Marble has a beautiful appearance and has traditionally been used for various decorative items, but since all of them are carved by hand, they are extremely expensive.
It has not yet become widespread in ordinary households. Therefore, attempts have been made to mass-produce decorative items with a so-called marble-like appearance using plastic materials mixed with various coloring agents, but the beautiful appearance of real marble cannot be obtained, and the decorative items It was of low value.

(Problems to be solved by the invention) The present invention solves these conventional problems,
It was completed with the aim of creating a marble-like decorative item, which has a relief that looks like white marble on a semi-transparent base, and is highly valuable as a decorative item and can be produced at a relatively low cost.

(Means for Solving the Problems) The present invention is a method of mixing a viscosity increaser, a coloring agent, and a curing agent into a polyester resin and then curing the mixture in a mold on the surface of a semi-transparent base. It is characterized by having a white relief formed by mixing marble powder, a filler, and a hardening agent into the mold, hardening the mixture in a mold, and then surface-treated with a release agent.

The polyester resin used in the present invention is optimally an unsaturated polyester resin for casting with excellent transparency and beauty.Base 1 is a polyester resin with a low shrinkage rate and a viscosity increaser such as asbestos powder and coloring. A material mixed with a hardening agent and a hardening agent is hardened in a mold. The viscosity increasing agent is also important for imparting semi-transparent properties to the base 1, and its mixing rate is preferably about 20 to 40 parts per 100 parts (by weight) of the polyester resin. A curing agent for polyester resin may be used as appropriate, and a coloring agent for polyester resin may be used as appropriate, but in order to make the base 1 have a so-called marble pattern, two to three types of coloring are required. Prepare one with each agent added separately,
It is best to mix them when casting.

The relief 2 is an integral part of the surface of the base 1, and is filled with marble powder with a particle size of 1 mm or less and silica as the main components in the same type of polyester resin that has excellent adhesion to the base 1. It is made of a material mixed with a curing agent and a curing agent. In addition, a curing accelerator and other white pigments such as titanium oxide to enhance the white color may be mixed. The filler is used to increase viscosity and whiteness to create a soft appearance, and can be a white fine powder containing about 95% silica. The curing agent and curing accelerator should be selected according to the selected polyester resin, and may be mixed in accordance with the resin manufacturer's specifications. The marble-like decorative article of the present invention is manufactured using a mold with appropriate elasticity, such as a silicone mold, and the manufacturing process will be described in detail in the following example.

(Example) For 100 parts (by weight) of an unsaturated polyester resin for casting, 70 parts of a white fine powder filler containing silica as a main component, 1 part of a curing agent for polyester resin,
In addition to mixing 0.5 parts of titanium oxide, about 6 parts of marble powder with a particle size of 1 mm or less is added to 4 parts of the mixture.
The mixture is mixed in a volume ratio of , and is degassed under vacuum to obtain the material for relief 2.

First, as shown in FIG. 2, a relief material is applied evenly onto the surface of the relief portion 4 of a silicone mold 3 using a brush or the like, and the material is applied together with the mold using a vibrator to gel it. The gel coat layer 5 is formed by gelling in about 45 minutes at room temperature, and a relief material is further injected thereon and gelled while applying vibration in the same manner, thereby forming a relief 2 without pinholes. Next unsaturated polyester resin 100 (weight)
Asbestos powder as viscosity increaser per 30 parts
A material for base 1 is produced by separately adding two types of colorants to a mixture of 1 part of curing agent and 1 part of curing agent, and defoaming in vacuum. As shown in FIG. 3, this material for the base 1 is applied to the upper surface of the relief 2 and the entire surface of the base portion 7 of the mold 3 using a paint brush or the like to form a gel coat layer 6. This gel coat layer 6 is used to create a delicate pattern and to give the surface of the base 1 a soft feel and gloss. Thereafter, as shown in Fig. 4, two to three types of materials for the base 1 of different colors are mixed and injected into the base part 7 of the mold 3 while forming a marble pattern to form the base 1, and in the same manner as described above. Let it gel for about 40 minutes while applying vibration, and then remove it from the mold.
Leave for 15 hours or more to fully harden. Thereafter, the surface of the obtained decorative article is washed with a release agent, and finally, burrs and the like are removed using sandpaper to obtain the finished article shown in FIG.

The marble-like ornament of the present invention obtained in this way has a relief 2 with a pure white appearance similar to marble containing a large amount of fine marble powder on the surface of a semi-transparent colored base 1. Since it is a protruding structure, the contrast in color and texture between the base 1 and the relief 2 is vivid and beautiful, making it an excellent interior decoration item. In particular, the surface of Relief 2 is treated with a release agent and the polyester resin is eluted, leaving the marble powder and filler exposed on the surface, resulting in a pure white color that is very similar to marble and an excellent texture. be able to. Furthermore, since both the base 1 and the relief 2 are made of the same polyester resin, strong adhesion is obtained and no warping or peeling occurs.

(Effects of the Invention) As will be clear from the following description, the present invention is one in which a relief with a beautiful white appearance similar to marble is formed on a colored semi-transparent base.
It has many advantages such as being relatively inexpensive to manufacture and having excellent durability. The marble-like ornaments of the present invention can be used in a wide range of applications such as wall hangings, clock panels, lighting fixtures, interior decorations, pendants, etc., and contribute to the industry as novel ornaments that have never existed before. It's large.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view showing an embodiment of the present invention;
3, and 4 are cross-sectional views showing the manufacturing process. 1: base, 2: relief.

Claims (1)

[Claims] 1. On the surface of a semi-transparent base 1, which is made by mixing a viscosity increaser, a coloring agent, and a hardening agent into a polyester resin and hardening it in a mold, marble powder, a filler, and a hardening agent are mixed into a polyester resin. A marble-like decorative article characterized by integrally protruding white reliefs 2 which are mixed with the mixture and hardened in a mold and whose surface is treated with a release agent.