CN103553714B - Glaze with crack block effect - Google Patents

Abstract

The invention discloses a glaze with a cracking effect, comprising a base glaze, a middle glaze and a top glaze, characterized in that the base glaze comprises, by weight percentage, 27.78% potassium feldspar, 27.78% quartz, 23.15% kaolin, 13.88% calcium carbonate and 7.41% ferric oxide; the middle glaze comprises, by weight percentage, 26.70% potassium feldspar, 26.70% quartz, 22.22% kaolin, 13.34% calcium carbonate, 2.23% ferric oxide and 8.81% zirconium silicate; the top glaze comprises, by weight percentage, 28.20% potassium feldspar, 28.20% quartz, 23.22% kaolin, 13.9% calcium carbonate, 6.48% high-temperature oxidation colorant and pigment, and the added amount of the pigment is no more than 7% of the total weight of the above-mentioned top glaze raw materials. The ceramic product made by the glaze formula provided by the invention has a glaze surface that presents a crack effect, which is natural and realistic, and the cracks are rough and bold.

Description

A glaze with a crackling effect

technical field

The invention relates to a glaze with a cracking effect, which belongs to the technical field of glazes for ceramics.

Background technique

Driven by the wave of modern civilization, people's expectations and pursuit of the aesthetic level of ceramic products are becoming stronger and stronger. Ceramic products with different patterns make the field of ceramic effects more colorful. At present, there are ceramic products with a cracking effect on the market, and the cracks are generally very thin, and there is no ceramic product with a large cracking effect.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of glaze, which is used to prepare ceramic products with large-block cracking effects.

In order to solve the above problems, the invention provides a kind of glaze material with cracking block effect, comprising bottom glaze, middle glaze and top glaze, it is characterized in that, described bottom glaze comprises the following raw materials in weight percentage:

Potassium feldspar 27.78%;

Quartz 27.78%;

Kaolin 23.15%;

Calcium carbonate 13.88%;

Ferric oxide 7.41%;

Described middle glaze comprises following raw material in weight percentage:

Potassium feldspar 26.70%;

Quartz 26.70%;

Kaolin 22.22%;

Calcium carbonate 13.34%;

Ferric oxide 2.23%;

Zirconium silicate 8.81%;

Described top glaze comprises following raw material by weight percentage:

Potassium feldspar 28.20%;

Quartz 28.20%;

Kaolin 23.22%;

Calcium carbonate 13.9%;

High temperature oxidation pigment 6.48%;

As well as pigments, the amount of pigment added is no more than 7% of the total weight of the above-mentioned surface glaze raw materials.

Ceramic products made of the glaze formula provided by the invention have a cracked effect on the glaze surface, which is natural and lifelike, with rough and bold cracks, crack width of 1.5-2.5mm, and cracks of about 1.5-2.0/square centimeter.

Detailed ways

In order to make the present invention more comprehensible, preferred embodiments are described in detail as follows.

Example 1

1. Glaze formula

1. The bottom glaze includes the following raw materials: (bottom glaze: 100KG for this preparation)

Table 1

Material name Suppliers Material number Recipe weight (kg) Remark Potassium feldspar COLOROBBIA 1106 27.78 the quartz COLOROBBIA 3003 27.78 the Kaolin COLOROBBIA TK-35 23.15 the calcium carbonate COLOROBBIA the 13.88 the Ferric oxide COLOROBBIA the 7.41 Colorant

2. Medium glaze includes the following raw materials: (medium glaze: 100KG for this preparation)

Table 2

Material name Suppliers Material number Recipe weight (kg) Remark Potassium feldspar COLOROBBIA 1106 26.70 the quartz COLOROBBIA 3003 26.70 the Kaolin COLOROBBIA TK-35 22.22 the calcium carbonate COLOROBBIA the 13.34 the Titanium oxide COLOROBBIA the 2.23 Colorant Zirconium silicate the the 8.81 Colorant

3. The surface glaze includes the following raw materials: (medium glaze: 100KG for this preparation)

table 3

Material name Suppliers Material number Recipe weight (kg) Remark Potassium feldspar COLOROBBIA 1106 28.20 the quartz COLOROBBIA 3003 28.20 the Kaolin COLOROBBIA TK-35 23.22 the calcium carbonate COLOROBBIA the 13.90 the Vanadium zirconium yellow powder COLOROBBIA PGK-3307 6.48 Other pigmented oxidation pigments available

2. Preparation of ceramic products

Step 1): Mix and grind the raw materials of the bottom glaze to 250 mesh in proportion;

Step 2): Soak the ceramic body in the bottom glaze for glazing, the thickness of the bottom glaze is 0.8~1mm;

Step 3): Mix and grind the raw materials of the medium glaze to 250 mesh in proportion;

Step 4): Spraying the glaze on the ceramic body obtained in step 2), the thickness of the glaze should not exceed 0.5mm;

Step 5): Mix and grind the raw materials of the surface glaze to 250 mesh in proportion;

Step 6): Spray the top glaze on the ceramic body obtained in step 4), the thickness of the top glaze is not more than 0.5mm;

Step 7): firing the semi-finished product obtained in step 6) at 1250° for 12 hours to obtain a ceramic product with a cracking effect.

This glaze is glazed in 3 times to obtain a crack effect glaze with iron red background color, brown cracks and yellow top glaze. The crack width is 1.5-3mm, and the yellow block area of the top glaze is 1.5-2.5 square centimeters in irregular shape.

Claims (1)

1. have a glaze for cleavage block effect, comprise ground-coat enamel, middle glaze and cover-coat enamel, it is characterized in that, described ground-coat enamel comprises following raw material by weight percentage:

Potassium felspar sand 27.78%;

Quartz 27.78%;

Kaolin 23.15%;

Calcium carbonate 13.88%;

Ferric oxide 7.41%;

Described middle glaze comprises following raw material by weight percentage:

Potassium felspar sand 26.70%;

Quartz 26.70%;

Kaolin 22.22%;

Calcium carbonate 13.34%;

Ferric oxide 2.23%;

Silicon acid zirconium 8.81%;

Described cover-coat enamel comprises following raw material by weight percentage:

Potassium felspar sand 28.20%;

Quartz 28.20%;

Kaolin 23.22%;

Calcium carbonate 13.9%;

High temperature oxidation colorant 6.48%;

And pigment, the addition of pigment is be no more than above-mentioned cover-coat enamel raw material gross weight 7%.