KR20120061546A - Glaze composition for ceramic ware comprising ashes from the excrements of silkworm and preparation method thereof - Google Patents

Abstract

PURPOSE: A glaze composition for porcelain which includes powdery ash left after burning silkworm excrement for porcelain and a manufacturing method thereof are provided to express warm and soft feelings by adding powdery ash left after burning silkworm excrement to glaze materials. CONSTITUTION: A glaze composition for porcelain includes powdery ash left after burning silkworm excrement for porcelain and glaze materials. The glaze material includes materials which are selected from enterolith, pottery stone, dolomite, limestone, quartz, and a mixture thereof. The glaze composition includes 10-60 weight% of powdery ash left after burning silkworm excrement and 40-90 weight% of glaze material. The glaze composition additionally includes one or more of mixture from Kaolin, clay, barium carbonate, pottery stone, talcum, dolomite, bone ash, yellow soil, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide, and zinc oxide.

Description

Glaze composition for ceramics including silkworm bonsai and manufacturing method thereof {GLAZE COMPOSITION FOR CERAMIC WARE COMPRISING ASHES FROM THE EXCREMENTS OF SILKWORM AND PREPARATION METHOD THEREOF}

The present invention relates to a glaze composition for ceramics using a silkworm bonsai and a method for producing the same, and more specifically, to a glaze composition for ceramics that can express a soft, warm feeling using a silkworm bonsai, which is a powder of ash on which silkworms are burned. It relates to a manufacturing method.

In general, glaze is a thin glass layer that adheres to the surface of ceramics, which lowers the absorbency of the ceramics, expresses aesthetics, and plays a role of giving the ceramics a strong role.

In other words, glaze is applied to the surface of ceramics or pottery, etc., and is heat-treated and fused to form a gloss or matte surface layer on the surface. It can remove permeability, increase aesthetic effect and improve the strength of ceramics. .

Glazes that are polished by firing on a surface of ceramics are usually composed of feldspar, silica, kaolin, limestone, talc, fluorspar, and bone meal.

As such, the conventional glaze for ceramics has a limitation that it cannot save the luxurious natural beauty such as celadon or white porcelain in the past, which used wooden materials because the glaze is made using only soil or stone powder.

Therefore, the present inventors have intensively researched to develop porcelain glazes that can make use of luxurious natural beauty that gives a warm and soft feeling, and as a result, when the porcelain glaze is added to produce porcelain glaze and applied to porcelain, it feels soft and warm. It was found that can be expressed to come to complete the present invention.

An object of the present invention is to provide an environmentally friendly ceramic glaze and a method of manufacturing the same that can express a warm and soft feeling to save the luxurious natural beauty.

In order to achieve the above object, the present invention provides a glaze composition for porcelain, including a silkworm bonsai, including a silkworm bonsai, which is a powder of ash on which silkworms are burned, and a common glaze raw material.

The silkworm bonsai refers to the ashes left after burning silkworm's feces, that is, silkworm powder. When using such a silkworm bonsai as a raw material of the glaze for ceramics, it is possible to provide a ceramic that exhibits environmentally friendly and luxurious natural beauty.

Silkworm bonsai contains a lot of phosphorus oxide (P ₂ O ₅ ) that softens the feel of porcelain glaze unlike other ashes, so when added to porcelain glaze, it gives a clear and warm feeling. In addition, it can be applied to Irabo glaze, celestial glaze, and the like, and it is particularly preferable to apply to celadon glaze. In addition, the silkworm bonsai may be added separately to the silica when preparing the glaze by adding a silkworm bonsai including a large amount of silica (SiO ₂ ) component (see Test Example).

The conventional ceramic glaze raw material may include all of the ceramic glaze raw material components widely used in the art, and specifically include those selected from the group consisting of feldspar and pottery stone, dolomite, limestone, quartzite and mixtures thereof. It is not limited to this.

Alkaline component of feldspar or pottery among the components of the conventional glaze raw material reacts with the silica component of the glaze raw material and acts as a flux to make glass, and dolomite, which is a kind of limestone and limestone, melts glaze better and increases hardness. Do it. These mixing ratios are obvious to those of ordinary skill in the art.

More specifically, the glaze composition for ceramics according to the present invention may be prepared by mixing 10-60 wt% of silkworm bonsai and 40-90 wt% of a common glaze raw material.

When the content of the silkworm bonsai is used out of the above range, the expression of the natural beauty that gives a warm and soft feeling may be insignificant.

In addition, the glaze composition for ceramics according to the present invention is kaolin, clay, barium carbonate, pottery, talc, dolomite, bone ash, loess, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide, zinc oxide, etc. According to the kind of glaze to be prepared may be further included, it is preferably included 10 to 50 parts by weight based on 100 parts by weight of glaze composition for ceramics including silkworm bonsai.

The glaze composition for ceramics according to the present invention may be made of a glaze exhibiting jade color, olive green color, brown color, etc. by adding coloring materials such as copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, and tin oxide.

In another aspect, the present invention provides a method for producing a glaze composition for porcelain including silkworm bonsai comprising the steps of preparing a silkworm bonsai and mixing the silkworm bonsai with a common glaze raw material.

Preparing the silkworm bonsai is obtained by the general method used in the art. For example, silkworms collect the remaining ashes, mix the ashes with water, grind them, and use a sieve to filter foreign matter. When the ash of silkworm powder filtered out through the sieve is settled and settled, the lye is separated from the precipitated ash (repeated several times), and the remaining ash is dried and used in powder form.

The silk bonsai prepared in this way can be mixed with the above-described conventional glaze raw material to produce a glaze composition for ceramics according to the present invention.

The glaze composition for ceramics including silkworm bonsai according to the present invention can save the luxurious natural beauty, can be used in the manufacture of environmentally friendly celadon glaze, powder blue glaze, matte glaze, irabo glaze, celestial glaze.

1 is a photograph of porcelain test pieces prepared according to Example 1 of the present invention.
2 is a photograph of porcelain test pieces prepared according to Example 2 of the present invention.
3 is a photograph of porcelain test pieces prepared according to Example 3 of the present invention.

Hereinafter, the present invention will be described in more detail through Examples and Test Examples. However, these examples and test examples are for illustrating the present invention, the scope of the present invention is not limited only to the following examples.

Example 1

Buyeo feldspar, silica and silkworm bonsai were mixed according to the composition ratio of the components shown in Table 1 below to prepare six kinds of glaze. Thereafter, the six glazes were applied to six roasted white porcelain test pieces, put in a gas kiln, and calcined at 1240 ° C. for 1 hour in a reducing atmosphere, and the photographs of the six test pieces prepared are shown in FIG. White glaze test specimens with glazes 1 to 6 shown and fired are listed from the left).

Example  2

Buyeo feldspar, dolomite and silkworm bonsai were mixed according to the composition ratio of the components shown in Table 2 below to prepare three kinds of glaze. Thereafter, the three glazes were applied to three first roasted white porcelain test pieces and placed in a gas kiln, and calcined for 1 hour at 1240 ° C. in a reducing atmosphere. White glaze test specimens with glaze of 3 and fired are listed from the left).

Example  3

Buyeo feldspar, limestone and silkworm bonsai were mixed according to the composition ratio of the components shown in Table 3 below to prepare three kinds of glaze. Then, the three glazes were applied to three first roasted white porcelain test pieces, put in a gas kiln, and calcined at 1240 ° C. for 1 hour in a reducing atmosphere, and the photographs of the three fired test pieces thus prepared are shown in FIG. 3. The white porcelain test specimens with the glaze of 1 to 3 shown in Fig. 3 and fired are listed from the left).

1 to 3, it can be seen that when using the glaze composition for ceramics according to the present invention by lubricating the white porcelain test piece, it is possible to express a warm and soft color without adding a separate coloring material.

Test Example : Silkworm Bonsai Analysis

After the component analysis of the silkworm bonsai obtained in Example 1 using XRF is shown in Table 4. Referring to Table 4, the silkworm bonsai contains 7.18% by weight of phosphorus oxide (P ₂ O ₅ ), which softens the feel of the glaze for ceramics. In addition, iron oxide (Fe ₂ O ₃ ) and manganese oxide (MgO) are included to affect the color of the glaze. In addition, it can be seen that the silkworm bonsai contains a large amount (21.72% by weight) of magnesia (MgO) and silica.

oxide SiO ₂ Al ₂ O ₃ CaO MgO Fe ₂ O ₃ P ₂ O ₅ Na ₂ O K ₂ O MnO Etc content
(weight%) 21.72 1.51 46.32 12.67 0.61 7.18 0.50 5.70 0.20 3.59

Claims (10)

A glaze composition for porcelain comprising a silkworm bonsai comprising a silkworm bonsai, which is a powder of ash that has been burned with silkworm powder, and a common glaze raw material.
The method of claim 1,
The conventional glaze raw material is a glaze composition for porcelain including silkworm bonsai, characterized in that it comprises selected from the group consisting of feldspar and stone, dolomite, limestone, quartz and mixtures thereof.
The method of claim 1,
A glaze composition for porcelain, including a silkworm bonsai, characterized in that the silkworm bonsai prepared by mixing 10 ~ 60% by weight and the usual glaze raw material 40 ~ 90% by weight.
The method of claim 1,
The glaze composition for porcelain including the silkworm bonsai comprises kaolin, clay, barium carbonate, pottery, talc, dolomite, bone ash, loess, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide, zinc oxide Glaze composition for porcelain, including silkworm bonsai, characterized in that it further comprises at least one mixture in the group.
The method of claim 4, wherein
One or more mixtures of kaolin, clay, barium carbonate, pottery, talc, dolomite, bone ash, loess, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide and zinc oxide are silkworm bonsai Porcelain glaze composition comprising a silkworm bonsai comprising 10 to 50 parts by weight based on 100 parts by weight of the glaze composition for porcelain.
A method of producing a glaze composition for porcelain comprising a silkworm bonsai comprising the steps of preparing a silkworm bonsai and mixing the silkworm bonsai and a common glaze raw material.
The method of claim 6,
The conventional glaze raw material is a method for producing a glaze composition for ceramics including silkworm bonsai, characterized in that selected from the group consisting of feldspar and pottery stone, dolomite, limestone, quartzite and mixtures thereof.
The method of claim 6,
A method for producing a glaze composition for ceramics including a silkworm bonsai, characterized in that the silkworm bonsai is prepared by mixing 10 ~ 60% by weight and the usual glaze raw material 40 ~ 90% by weight.
The method of claim 6,
The glaze composition for porcelain including the silkworm bonsai comprises kaolin, clay, barium carbonate, pottery, talc, dolomite, bone ash, loess, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide, zinc oxide Method for producing a glaze composition for ceramics including silkworm bonsai, characterized in that it further comprises at least one mixture in the group.
10. The method of claim 9,
One or more mixtures of kaolin, clay, barium carbonate, pottery, talc, dolomite, bone ash, loess, bentonite, copper oxide, cobalt oxide, manganese oxide, nickel oxide, titanium oxide, tin oxide and zinc oxide are silkworm bonsai Method for producing a glaze composition for ceramics including silkworm bonsai, characterized in that 10 to 50 parts by weight based on 100 parts by weight of the glaze composition for ceramics.

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