JP2002336931A - Ornament formed of precious metal, and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacturing an ornament formed of precious metal having a delicate shape and a variety of three-dimensional shapes. SOLUTION: A three-dimensional model 1 is manufactured by using a yarn 2 formed of cotton or synthetic fiber, a solidifying agent is applied to the mode 1, the model with the solidifying agent applied thereto is covered by gypsum 11, the gypsum is heated to lose the model 1 and form a cavity 13, and the ornament of precious metal is manufactured by pouring molten metal in the cavity 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noble metal ornament and a method for producing the same.

[0002]

2. Description of the Related Art Heretofore, as a method of manufacturing a noble metal ornament, a lost wax method using a wax model has been widely known. On the other hand, instead of using a wax model, a lace or embroidery model coated with wax or the like (JP-A-7-299542), or a plant or leaf or flower coated with a solidifying agent (JP-A-7-299542) is used. 2000-2475
3) is known.

[0003]

However, it is difficult to express a delicate three-dimensional shape using a wax model. On the other hand, a model using a lace or embroidery model can express a delicate shape, but has a problem that the shape is limited to a planar shape and cannot be a three-dimensional shape. In addition, there is a problem in that a free shape cannot be created even with leaves and flowers.

[0004]

Accordingly, in order to solve the above-mentioned problems, the present invention produces a three-dimensional model using a thread made of cotton or synthetic fiber, applies a solidifying agent to the model, and solidifies the model. Covering the model coated with the agent with gypsum, heating the gypsum to burn off the model, forming a void, and providing a noble metal ornament manufactured by casting a molten metal in the void. It is. ADVANTAGE OF THE INVENTION According to this invention, while being able to express a delicate shape, it is possible to manufacture a variety of precious metal decorative articles having a three-dimensional shape. In addition, since it is a one-piece production, it is possible to obtain a precious metal ornament having a distinctive, aesthetic, and high artistic value.

Further, the present invention provides a precious metal decorative article according to claim 1, wherein the yarn made of cotton or synthetic fiber has a thickness equivalent to the 50th to 30th catan yarn. It is. ADVANTAGE OF THE INVENTION According to this invention, while using a thin thread, a delicate shape can be expressed and the melt | dissolution metal can be poured into the edge of a void.

The present invention also provides a three-dimensional model using a thread made of cotton or synthetic fiber, applying a solidifying agent to the model, covering the model with the solidifying agent with gypsum, and heating the gypsum. The present invention provides a method for manufacturing a decorative article made of a noble metal, comprising a step of burning a model to form a space and casting a molten metal into the space. ADVANTAGE OF THE INVENTION According to this invention, when a model is covered with gypsum, the shape is not destroyed, and it is possible to manufacture a noble metal ornament as a model knitted with a thread.

Further, the three-dimensional model is manufactured by knitting a yarn three-dimensionally, and a method for manufacturing a noble metal decorative article according to claim 3 is provided. According to the present invention, a model having a complicated shape can be freely made since the target shape is knitted from the beginning. The said three-dimensional model is made by knitting a yarn in a plane, bending the plane shape, and combining the curved ones, and manufacturing the precious metal decorative article according to claim 3. Provide a method. According to the present invention, various three-dimensional shapes can be easily formed.

[0008] The present invention also provides a method for producing a precious metal ornament according to claim 4 or 5, wherein the yarn is knitted by crochet. ADVANTAGE OF THE INVENTION According to this invention, a delicate stitch pattern of a crochet and the luster of a noble metal are combined, and a luxury ornament can be obtained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. First, a three-dimensional model 1 having the same shape as the design of a decorative article is manufactured using a yarn 2 made of cotton or synthetic fiber. The model 1 shown in FIGS. 1 to 4 is a model manufactured by knitting the yarn 2 three-dimensionally by hooking.
Crochet is preferable to express a delicate three-dimensional shape,
It is not limited to this. The model 1 is manufactured by knitting three-dimensionally, and as shown in FIGS. 5 to 7, a part 3 of the model is knitted two-dimensionally, and the part 3 of the model is curved to be three-dimensional. Can be combined to produce a three-dimensional model 1. In addition, since the yarn is knitted into a target shape from the beginning, not only a curved shape but also a variety of three-dimensional shapes such as a delicate and flowing three-dimensional shape having a radial spread as shown in FIG. 8 are obtained. be able to.

It is preferable that the yarn 2 made of cotton or synthetic fiber has a thickness corresponding to Cat No. 50 to No. 30. If the yarn is thinner than Catan yarn No. 50, the melted metal cannot flow into the end of the space, and a jewelry made of a noble metal as a model cannot be obtained. On the other hand, a yarn thicker than the Catan yarn No. 30 cannot express a delicate shape, and also becomes heavier.

Next, as shown in FIG. 9, the model 1 is impregnated with a wax solution 10 for a certain period of time and then taken out to apply a wax. By applying wax to fix the shape, the shape does not collapse when the plaster 11 is poured around the model 1, and the noble metal ornaments of the shape of the model 1 manufactured by knitting with a thread can be used. Can be manufactured. After the model 1 is taken out of the wax solution 10, the shape can be adjusted while the wax is still soft. As a solidifying agent for fixing the shape of the model 1, in addition to wax, beeswax, varnish, oil-based paint, chemical paste,
Hair spray, nail polish, instant adhesive, resin and the like can be used. The method of applying the solidifying agent may be impregnation with a solution, or may be applied with a brush or the like.

Next, as shown in FIG. 10, a runner 12 is attached to the model 1 to which wax has been applied.
Cover with 1. After the gypsum 11 has solidified, it is placed in a heating furnace such as an electric furnace and heated to burn off the model 1 and form a cavity 13.
Then, the molten metal is poured into the empty space 13 and solidified, and then the gypsum 11 is removed, whereby a cast product having the same shape as the model 1 can be manufactured. The surface of this casting is polished, and jewelry, chains, pins, etc. are attached according to the application, to give a precious metal decoration.

[0013]

As described above, according to the decorative article made of precious metal of the present invention, a three-dimensional model is manufactured by using a thread made of cotton or synthetic fiber, and the solidifying agent is applied to the model. The model coated with is covered with gypsum, and the gypsum is heated to burn out the model to form a void, and manufactured by casting a melted metal in the void, so that a delicate shape can be expressed. Thus, there is an effect that a variety of precious metal ornaments having a three-dimensional shape can be manufactured. In addition, since it is a one-piece production, there is an effect that a precious metal ornament having a distinctive, aesthetic, and high artistic value can be obtained.

Further, according to the present invention, the yarn made of the cotton or the synthetic fiber has a thickness equivalent to the 50th to 30th catan yarns, and the thin yarn is provided by the constitution according to claim 1. By using this, there is an effect that a delicate shape can be expressed and the melted metal can be poured to the end of the void.

Further, according to the method for manufacturing a precious metal decorative article of the present invention, a three-dimensional model is manufactured using a thread made of cotton or synthetic fiber, and a solidifying agent is applied to the model, and the solidifying agent is applied. Covering the applied model with gypsum, heating the gypsum to burn off the model to form a void, and casting a molten metal in the void, the shape when covering the model with gypsum There is an effect that a jewelry made of precious metal can be manufactured according to a model knitted with a thread without collapse.

Further, the three-dimensional model is manufactured by knitting a yarn three-dimensionally, so that the three-dimensional model is knitted into a target shape from the beginning, so that a complicated shape is formed. The effect is that the model can be made freely. Further, the three-dimensional model is manufactured by knitting a yarn in a plane, bending the plane shape, and combining the curved shapes to produce the three-dimensional model. There is an effect that various three-dimensional shapes can be created.

Further, according to the present invention, the yarn is knitted by crochet, and the process according to claim 4 or 5 is characterized in that the delicate stitch pattern of crochet and the luster of the precious metal are combined. Thus, there is an effect that it is possible to obtain a luxury ornament.

[Brief description of the drawings]

FIG. 1 is a plan view of a model of the present invention.

FIG. 2 is a front view of the model of the present invention.

FIG. 3 is a side view of the model of the present invention.

FIG. 4 is a perspective view of a model of the present invention.

FIG. 5 is a plan view of parts of a model that is knitted in a plane.

FIG. 6 is a perspective view of a curved model part.

FIG. 7 is a perspective view of a model in which parts are combined.

FIG. 8 is a perspective view of another embodiment of the model of the present invention.

FIG. 9 is a diagram showing a state in which a model is impregnated with wax.

FIG. 10 is a diagram showing a state in which a model is covered with plaster.

FIG. 11 is a diagram showing a state in which gypsum is being heated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Model 2 Thread 3 Model parts 10 Wax solution 11 Gypsum 12 Hot water 13 Empty space

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Claims (6)

[Claims] 1. A three-dimensional model is manufactured using a thread made of cotton or synthetic fiber, a solidifying agent is applied to the model, the model coated with the solidifying agent is covered with plaster, and the model is heated by heating the plaster. A decorative article made of a precious metal manufactured by forming a void by burning out and casting a molten metal into the void. 2. The noble metal decorative article according to claim 1, wherein the thread made of cotton or synthetic fiber has a thickness equivalent to Cat No. 50 to No. 30. 3. A three-dimensional model is manufactured using a thread made of cotton or synthetic fiber, a solidifying agent is applied to the model, the model coated with the solidifying agent is covered with plaster, and the model is heated by heating the plaster. A method for producing a noble metal ornament, comprising the steps of: forming a cavity by burning out; and casting a molten metal into the cavity. 4. The method according to claim 3, wherein the three-dimensional model is manufactured by knitting a yarn three-dimensionally. 5. The noble metal decoration according to claim 3, wherein the three-dimensional model is manufactured by knitting yarn in a plane, bending the plane shape, and combining the curved shapes. Product manufacturing method. 6. The method for producing a jewelry made of precious metal according to claim 4, wherein the yarn is knitted by crochet.