Bone enamel ornament and preparation method thereof

Abstract

The invention discloses a bone enamel ornament and a preparation method thereof, and the bone enamel ornament is prepared by the following steps: mixing ground animal bone ash, an adhesive and an enamel glaze to prepare a bone enamel glaze, carrying out compression molding, and carrying out one-time firing at a high temperature to obtain an ornament main body; wherein the volume ratio of the bone ash to the enamel glaze to the adhesive is 1: 2: 1-1: 4: 3; the firing temperature is 800 to 900 DEG C, and the duration is 0.5 to 5 minutes. Due to the special physical property of the bone enamel, the gorgeous color of traditional enamel is reserved, meanwhile, the enamel can be independently formed without the constraint of a matrix, rich modeling of a three-dimensional space is achieved, and meanwhile the bone enamel has the rock-like surface, is hard in material and high in strength and can bear certain low-altitude beating; the special rock mechanism of the bone enamel finished product gives a new texture to traditional enamel, and the bone enamel finished product becomes a new aesthetic choice.

Description

Technical Field

[0001] The invention belongs to the technical field of ornaments, and designs an enamel ornament manufactured by a special process, in particular to a bone enamel and a preparation method thereof. Background Art

[0002] Enamel craft is a traditional decorative craft that attaches glassy glaze to the surface of metal, ceramics or other materials through high-temperature firing. Its characteristic is that the glaze will show bright colors and luster after firing, and the specific representative is the cloisonné craft.

[0003] When traditional enamel is fired at high temperatures, the glaze melts and becomes liquid, so it cannot be fixed during firing, nor can it be used independently as a decorative device. It must rely on the body to be used. In addition, traditional enamel devices have a smooth surface, lack the roughness of texture, and are too simple in style, which does not meet the needs of some special consumers. Summary of the invention

[0004] The purpose of the present invention is to provide a bone enamel ornament and a preparation method thereof. While retaining the brilliant colors of traditional enamel, bone enamel can free the enamel from the constraints of the body and be independently formed, and can achieve rich shapes in three-dimensional space. At the same time, the special surface texture properties of the bone enamel finished product give traditional enamel a new texture and aesthetic choice.

[0005] The technical solution of the present invention is as follows:

[0006] A bone enamel ornament, characterized in that ground animal bone ash, adhesive and enamel glaze are mixed to form bone enamel glaze, which is then molded and fired at high temperature once to form the ornament body; the volume ratio of bone ash, enamel glaze and adhesive is 1:2:1 to 1:4:3; the firing temperature is 800-900°C and the firing time is 0.5-5 minutes.

[0007] In the above-mentioned bone enamel ornaments, the volume ratio of bone ash, enamel glaze and adhesive is 1:3:2.

[0008] In the above-mentioned bone enamel jewelry, the firing temperature is 850 and the firing time is 50 seconds to 2 minutes.

[0009] In the above-mentioned bone enamel jewelry, the production steps of bone ash are to steam animal bones to remove impurities and fat, burn them until the bones turn white and break, and grind them into fine particles of 50-80 mesh.

[0010] In the above-mentioned bone enamel jewelry, the animal ashes are ground into 60 mesh and finer particles.

[0011] In the above-mentioned bone enamel ornaments, the adhesive is KF-50 ethyl methyl cellulose aqueous solvent.

[0012] In the above-mentioned bone enamel ornaments, accessories are installed on the outside of the ornament body.

[0013] In the above-mentioned bone enamel ornaments, the molding step is to evenly mix the enamel glaze, bone ash and adhesive according to a set ratio and then fill them into the mold, and then demould them after drying.

[0014] A method for manufacturing bone enamel ornaments, characterized in that it comprises the following steps:

[0015] 【1】Material preparation

[0016] 【1.1】Preparation of ashes

[0017] The animal bones are steamed to remove impurities and fat, roasted until the bones turn white and break, and ground into fine particles;

[0018] 【1.2】Enamel glaze preparation

[0019] Select enamel glaze according to needs and grind it into powder;

[0020] 【2】Molding

[0021] 【2.1】Mix the enamel glaze, bone ash and adhesive in the set proportion and stir evenly, fill into the mold to be formed, and demould after drying;

[0022] 【3】Firing

[0023] The demoulded object is placed on a refractory sheet and fired in a kiln once;

[0024] 【4】Accessories

[0025] Install accessories on the fired ornaments according to the design.

[0026] In the manufacturing method of the above-mentioned bone enamel jewelry, the volume ratio of bone ash, enamel glaze and adhesive is 1:3:2; the firing temperature is 850, and the firing time is 50 seconds to 2 minutes; the adhesive is KF-50 ethyl methyl cellulose aqueous solvent.

[0027] The beneficial technical effects of the present invention are as follows:

[0028] The present invention is based on the traditional enamel production process and raw materials. After adding a certain proportion of bone ash into the glaze, the main component of the bone ash, calcium phosphate, reacts with the silicon dioxide in the enamel glaze at high temperature to produce calcium silicate and phosphate compounds, that is, the finished bone enamel. Due to its special physical properties, bone enamel can keep the bright colors of traditional enamel and can make the enamel break free from the constraints of the body and independently shape, realizing rich three-dimensional shapes. At the same time, it has a rock-like surface, hard material, high strength, and can withstand a certain low-altitude drop; the special rock mechanism of the finished bone enamel gives traditional enamel a new texture, becoming a new aesthetic choice. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the filling process in traditional enamel preparation;

[0030] Figure 2 It is a finished product of traditional enamel jewelry;

[0031] Figure 3 The bone enamel ornament body prepared by the present invention;

[0032] Figure 4 The invention relates to a bone enamel ornament with accessories. DETAILED DESCRIPTION

[0033] like Figure 1 and Figure 2 As shown, the traditional enamel preparation process is as follows:

[0034] 1. Material preparation

[0035] 1. Body: The body of enamel is generally made of metal or ceramic. Common metal bodies are copper or silver. Copper has a long history of firing and is the traditional choice.

[0036] 2. Enamel glaze: The basic components of enamel are quartz, feldspar, borax and fluoride, which belong to the silicate material like ceramic glaze, colored glaze and glass. Various colored metal oxides are added respectively, and after being roasted and ground into powdered colored materials, they are filled or painted on the body according to different processes. Colored glazes are made by adding various metal oxides. Different metals produce different colors, such as cobalt oxide is blue, iron oxide is red, chromium oxide is green, manganese oxide is purple, and copper oxide is cyan.

[0037] 3. Additional Materials:

[0038] Pure water is used to dilute the glaze. Craftsmen can use a soft brush or other tools to apply the glaze on the body according to their habits.

[0039] 2. Tool Preparation

[0040] 1. Firing tools - kiln: The firing temperature of enamel is about 750℃-850℃, and a professional electric kiln or combustion kiln that can accurately control the temperature is required.

[0041] 2. Color mixing tools - grinder or slate and mortar: used to grind glaze to the required fineness; palette and brush, used to blend glaze and finely color it.

[0042] 3. Other auxiliary tools: Polishing tools: such as sandpaper and polishing cloth, used to polish the body and glaze layer. Clamps and pliers: used to clamp the body to prevent hands from touching the body glaze.

[0043] 3. Preparation before firing

[0044] 1. Breast preparation: When using a metal breast, first anneal the breast to make the metal more stable, then clean the surface with acidic liquid and detergent powder to ensure that the surface is clean and free of impurities.

[0045] 2. Prepare the glaze: Put the powdered enamel glaze into a mortar and grind it into a very fine powder with a pestle, making sure the particles are uniform and free of impurities. Add a small amount of clean water to the glaze, stir well, and adjust to a suitable consistency.

[0046] 3. Glazing (wet coating): Use a soft brush to evenly apply the prepared glaze on the surface of the body. When applying the glaze, pay attention to the uniform thickness to avoid bubbles or too thick glaze layer. After glazing, let it dry naturally or use the residual heat of the furnace to dry it so that the glaze is fully combined with the body.

[0047] 4. Glazing (dry coating) Do not add water after grinding the enamel glaze. Pour the glaze powder into a fine sieve and sieve the glaze evenly onto the metal base.

[0048] 4. Firing

[0049] 1. Firing (first firing): Put the glazed body into the kiln and start the first firing. This step is called "first firing" or "bisque firing". The temperature is controlled at 750℃-850℃, and the firing time is about 50 seconds to 2 minutes, or longer. The specific time depends on the size of the body and the thickness of the glaze. The melting state of the enamel needs to be observed at all times. After the first firing, the body will undergo changes in the glaze brightness and the glaze solidification, forming a preliminary enamel layer.

[0050] 2. Glaze and paint again - After the first firing, if necessary, start more detailed painting. Paint and design patterns on the body. You can use different colors of glazes to stack multiple layers, each color needs to be colored separately and fired again to keep the color bright and layered. After the painting is completed, wait for the glaze to dry and then fire it for the second time.

[0051] 3. Firing (second firing and multiple firings): The painted body needs to be put into the kiln again. The temperature control is similar to the first firing. According to the requirements of different color layers and glazes, multiple firings are carried out. Fire until all glazes are completely fused and solidified. After each firing, the body must be cooled naturally to avoid sudden cooling and heating that may cause cracking of the body.

[0052] 5. Post-processing

[0053] 1. Polishing and grinding - After multiple firings, if the surface effect has reached the requirements, it can be considered completed. If you want the surface to be smoother, you can use fine sandpaper or polishing cloth to polish the enamel surface to ensure a smooth surface.

[0054] 2. Completion and inspection - Finally check the finish, color brightness, and whether there are bubbles or flaws in the enamelware. If minor flaws are found, local repairs and re-firing may be required until completion.

[0055] like Figure 3 and Figure 4 As shown, the present invention has made innovative improvements to the above-mentioned traditional process, and the bone enamel preparation process is as follows:

[0056] 1. Material preparation

[0057] 1. Body material: No special body material is needed, just prepare refractory sheets. Since successfully fired bone enamel will not stick to metal sheets, any gold, silver or copper sheets can be used (copper or silver sheets are recommended).

[0058] 2. Bone enamel glaze: Traditional enamel glaze: Bone enamel is a variant technique of traditional enamel craft, and traditional enamel glaze is still an important raw material.

[0059] 3. Animal ashes: Bone enamel needs to be mixed with a certain proportion of animal ashes. Animal ashes are generally made from cattle, sheep or pet bones.

[0060] The preparation process of bone ash is as follows: Steam the bones to remove excess impurities and fat, place them outdoors in a well-ventilated place, take fire and wind protection measures, and start burning until the bones begin to turn white and break. Collect the burned bone ash fragments and grind them into fine particles of 50-80 mesh, preferably 60 mesh and finer, and they are ready.

[0061] 2. Tool Preparation

[0062] 1. Firing kiln: The firing temperature of bone enamel is about 800-900℃, preferably 850℃. It requires a professional electric kiln or combustion kiln that can accurately control the temperature.

[0063] 2. Mould: used to shape the bone enamel;

[0064] 3. Auxiliary tools: The grinder is used to grind the glaze to achieve the required fineness. The brush is used to mix the glaze and fill it into the mold. The clamp and pliers are used to clamp the body to prevent hands from contacting the high-temperature body.

[0065] 3. Preparation before burning

[0066] 1. Tire preparation: Take any metal tire piece and keep its surface clean.

[0067] 2. Prepare the glaze: put the powdered enamel glaze into a container, add the ground bone ash and adhesive, and stir them thoroughly to make them viscous; the adhesive is KF-50 ethyl methyl cellulose aqueous solvent (Klyr Fire Gum Solution). During preparation, the volume ratio of bone ash, enamel glaze and adhesive is 1:2:1 to 1:4:3; preferably, the volume ratio of bone ash, enamel glaze and adhesive is 1:3:2.

[0068] Klyr Fire Gum Solution is a water-based gum solution for enamel craft. Composed primarily of ethyl methylcellulose (vegetable gum) and distilled water, it is applied thinly to metal surfaces to form a bonding agent, and is particularly useful for applying powdered enamel to curved or domed surfaces. It can be used as a bonding agent for wire, forming the cloisonné of cloisonné enamel, and can also be used as a mixing agent for wet fill enamel, or mixed with painted enamel.

[0069] 3. Fill the mold: Use a soft brush to fill the mold with the prepared bone enamel glaze. When glazing, be sure to stir while filling to prevent too many bubbles from forming in the bone enamel. After pouring into the mold, let it dry naturally. It may take 2-3 days to dry completely.

[0070] 4. Molding: After the bone enamel glaze is completely dry, carefully demold the glaze into bone enamel raw material. At this time, the glaze is still very fragile and requires great care to avoid the glaze from collapsing.

[0071] 4. Firing

[0072] Place the raw bone enamel on the metal sheet, put it into the kiln and start firing. The firing temperature is 800-900℃, the duration is 0.5-5 minutes, preferably controlled at 850℃, and the firing time is about 50 seconds to 2 minutes, depending on the size of the glaze.

[0073] However, it should be noted that due to its special properties, bone enamel only lasts for a very short time in its perfect state, and repeated firing may cause it to crack, so re-firing should be avoided.

[0074] 5. Post-processing

[0075] Finishing and Inspection: If the firing time is too short, the properties of the bone enamel will not change; if the firing time is too long, the bone ash and enamel will react violently at high temperature, producing a large number of bubbles, and the structural strength of the bone enamel will also decrease. After the perfect firing condition, the entire surface of the bone enamel glaze will be completely deteriorated, like a rock-like surface, with a hard material and high strength, and can withstand a certain low-altitude drop. On the contrary, it may be too smooth and produce a large number of bubbles, with a very low structural strength and unable to withstand general physical collisions.

[0076] Traditional enamel will melt and become liquid when fired at high temperature, so it cannot be fixed during firing, nor can it be used as an independent material, and must rely on the body. The present invention adds a certain proportion of bone ash to the traditional glaze, and the main component of the bone ash, calcium phosphate, reacts with the silicon dioxide in the enamel glaze at high temperature to produce calcium silicate and phosphate compounds. The other components will affect the texture structure and surface texture through high-temperature sintering, making the main body of the ornament rough, with the characteristics of rock, and obvious granularity.

[0077] The bone enamel firing process is a new process developed based on the traditional enamel process. It is a bold innovation of the traditional enamel / cloisonné process. The inventor has felt that the creation of the traditional enamel process has reached some bottlenecks in the process of firing enamel for many years. Even though the enamel color is gorgeous, the modern enamel process has not made a major breakthrough compared with the ancient enamel process. Relying on his many years of experience in enamel firing, the inventor has developed a new process to realize more possibilities of enamel, improve its shortcomings of being unable to perform three-dimensional modeling and having to rely on the body, and make a bold breakthrough in the glass texture of enamel for thousands of years. On the one hand, it enriches the rich modeling of the three-dimensional space of enamel, and on the other hand, it makes the product have a rock-like surface texture that can withstand a certain low-altitude fall. Due to its special physical properties, bone enamel can keep the gorgeous colors of traditional enamel while allowing the enamel to break free from the constraints of the body and form independently. The special rock mechanism of the finished product gives the traditional enamel a new texture, becoming a new aesthetic choice, and can be used as a souvenir for the death of a pet, with broad market prospects.

Claims

1. A bone enamel ornament, characterized in that: The bone enamel glaze is made by mixing ground animal ashes, adhesive and enamel glaze, and after being molded, it is fired at high temperature at one time to form the main body of the ornament; the volume ratio of bone ash, enamel glaze and adhesive is 1:2:1 to 1:4:3; the firing temperature is 800-900℃, and the firing time is 0.5-5 minutes.

2. The bone enamel ornament according to claim 1, characterized in that: The volume ratio of bone ash, enamel glaze and binder is 1:3:

2.

3. The bone enamel ornament according to claim 1, characterized in that: The firing temperature is 850°C and the firing time is 50 seconds to 2 minutes.

4. The bone enamel ornament according to claim 1, characterized in that: The steps for making bone ash are to steam the animal bones to remove impurities and fat, burn them until the bones turn white and break into pieces, and grind them into fine particles of 50-80 mesh.

5. The bone enamel ornament according to claim 4, characterized in that: Animal bone ashes are ground to 60 mesh and finer particles.

6. The bone enamel ornament according to claim 1, characterized in that: The binder is KF-50 ethyl methyl cellulose aqueous solution.

7. The bone enamel ornament according to claim 1, characterized in that: Accessories are installed on the outside of the accessory body.

8. The bone enamel ornament according to claim 1, characterized in that: The molding process is to evenly mix the enamel glaze, bone ash and adhesive in a set proportion, fill them into the mold, and then demould them after drying.

9. A method for preparing bone enamel jewelry, characterized in that: The following steps are involved: 【1】Material preparation 【1.1】Preparation of ashes The animal bones are steamed to remove impurities and fat, roasted until the bones turn white and break, and ground into fine particles; 【1.2】Enamel glaze preparation Select enamel glaze according to needs and grind it into powder; 【2】Molding 【2.1】Mix the enamel glaze, bone ash and adhesive in the set proportion and stir evenly, fill into the mold to be formed, and demould after drying; 【3】Firing The demoulded object is placed on a refractory sheet and fired in a kiln once; 【4】Accessories Install accessories on the fired ornaments according to the design.

10. The method for preparing bone enamel jewelry according to claim 9, characterized in that: The volume ratio of bone ash, enamel glaze and adhesive is 1:3:2; the firing temperature is 850, and the duration is 50 seconds to 2 minutes; the adhesive is KF-50 ethyl methyl cellulose water solvent.

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