Stone-burst texture glazed ceramic and preparation method thereof

Abstract

The present application relates to the field of ceramic and its preparation process, in particular to a kind of stone explosion texture glaze ceramic and its preparation method, the surface of ceramic is distributed with convex point, stone explosion crack and black spot, convex point and stone explosion crack are caused by inorganic stone explosion particle, when inorganic stone explosion particle is at the deep place of outer blank layer, convex point is formed on the surface of ceramic after firing, when inorganic stone explosion particle is at the surface layer of outer blank layer, inorganic stone explosion particle occurs stone explosion phenomenon, the top of stone explosion particle breaks through outer blank layer and forms stone explosion crack;Black spot is caused by organic stone explosion particle, organic stone explosion particle is decomposed and combusted in the firing process and breaks through outer blank layer and powder guide layer, forms black spot;After firing, the surface of ceramic has simultaneously convex point, stone explosion crack and black spot concave-convex texture with unique antique aesthetic feeling.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ceramics and its preparation process, in particular to stone explosion texture glaze ceramic and its preparation method. BACKGROUND

[0002] The existing preparation method of the old and retro glaze ceramic is usually realized by adopting the way of charcoal firing. The charcoal firing refers to the ceramic product fired by using firewood as fuel, which is mainly divided into two categories of glazing (base glaze) and non-glazing (natural glaze). Its characteristic is that the ash and flame generated by wood burning directly enters the kiln, which is different from the general beautiful glaze water. The falling ash in the kiln is naturally attached to the body, and forms the natural ash glaze with warm and smooth, rich levels under high temperature baking. However, the charcoal firing has some problems: the charcoal firing consumes a large amount of wood and other materials, which destroys the natural environment, and the effect after firing is unstable, so that the stable glaze effect cannot be obtained. In addition, in order to obtain the concave-convex lines, the surface of the body is usually engraved with lines in the traditional process, and the glaze effect is not natural. In view of this, the present application is produced. SUMMARY

[0003] An object of the present application is to solve at least the above problems by stone explosion texture glaze ceramic and its preparation method.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a stone explosion texture glaze ceramic, comprising a body, the body comprising an inner body and an outer body layer covering the surface of the inner body, the surface of the outer body layer being distributed with convex points, stone explosion cracks and black spots.

[0005] Preferably, the raw material of the inner body is a body material, and the raw material of the body material comprises the following components in parts by weight: clay 70-75 parts, feldspar 10-12 parts, talc 4-6 parts, and dolomite 6-8 parts.

[0006] Preferably, the raw material of the outer body layer comprises the following components in parts by weight: body material 80-85 parts, inorganic stone explosion particles 6-12 parts, and organic stone explosion particles 6-12 parts.

[0007] Preferably, the inorganic stone explosion particles are quartz stone particles.

[0008] Preferably, the organic stone explosion particles are plastic rice.

[0009] Preferably, it further comprises a powder guide layer covering the surface of the body, and the raw material of the powder guide layer is a powder guide slurry. The raw material of the powder guide slurry comprises the following components in parts by weight: kaolin 20-25 parts, calcined kaolin 10-12 parts, spherical clay 10-12 parts, feldspar 15-20 parts, quartz 5-8 parts, talc 5-8 parts, zircon 5-8 parts, and borax 2-3 parts.

[0010] Preferably, the glaze covering the surface of the slip layer comprises, by weight parts, 40-45 parts of potassium feldspar, 20-25 parts of quartz, 5-8 parts of limestone, 6-9 parts of kaolin, and 2-3 parts of talc.

[0011] The method for preparing the stone explosion texture glaze ceramic comprises the following steps:

[0012] Step a, forming a green body;

[0013] Step b, applying a slip layer on the surface of the green body;

[0014] Step c, firing in a kiln;

[0015] Step d, applying a transparent glaze on the surface of the ceramic;

[0016] Step e, re-firing in a kiln.

[0017] Preferably, in step a, a green body is first prepared, the inorganic stone explosion particles and the organic stone explosion particles are mixed in the green body, and then the mixed slip is applied on the surface of the inner green body to form an outer green layer, and the green body is dried.

[0018] Preferably, in step b, the slip layer is applied on the surface of the green body by multiple brushings to form a slip layer on the green body; after the slip layer is applied on the green body, a portion of the slip layer is removed by a carving tool to expose the inner green body, and the texture of the naked green body color is formed after firing; the slip layer is applied on the surface of the green body by a brush.

[0019] As can be seen from the above description, the stone explosion texture glaze ceramic and the preparation method thereof have the following beneficial effects: the surface of the ceramic is distributed with convex points, stone explosion cracks, and black spots; the convex points and the stone explosion cracks are caused by the inorganic stone explosion particles; when the inorganic stone explosion particles are in the deep part of the outer green layer, the convex points are formed on the surface of the ceramic after firing; when the inorganic stone explosion particles are in the surface layer of the outer green layer, the inorganic stone explosion particles explode, the top of the stone explosion particles breaks through the outer green layer and forms the stone explosion cracks; the black spots are caused by the organic stone explosion particles; the organic stone explosion particles decompose and burn during the firing process, break through the outer green layer and the slip layer, and form the black spots; the surface of the ceramic after firing has the concave-convex texture of the convex points, the stone explosion cracks, and the black spots, and has a unique antique beauty. DETAILED DESCRIPTION

[0020] The application will be further described in the following detailed description with specific embodiments.

[0021] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application will be further described in the following detailed description with specific embodiments.

[0022] The stone explosion texture glazed ceramic of the present application comprises a body, the body comprises an inner body and an outer body layer covering the surface of the inner body, and the surface of the stone explosion texture glazed ceramic is distributed with convex points, stone explosion cracks and black spots.

[0023] The convex points and the stone explosion cracks are caused by inorganic stone explosion particles, when the inorganic stone explosion particles are in the deep part of the outer body layer, the convex points are formed on the surface of the ceramic after firing, when the inorganic stone explosion particles are in the surface layer of the outer body layer, the inorganic stone explosion particles explode, the top of the stone explosion particles breaks through the outer body layer and forms the stone explosion cracks; the black spots are caused by organic stone explosion particles, the organic stone explosion particles decompose and burn during the firing process and break through the outer body layer and the powder leading layer to form the black spots; the surface of the ceramic after firing has the concave-convex texture of the convex points, the stone explosion cracks and the black spots, and has a unique antique beauty; the antique glaze effect of the stone explosion texture glazed ceramic of the present application can be obtained by firing in a modern kiln, the glaze effect is stable and controllable, and the yield is high.

[0024] The raw material of the inner body is a body material, the raw material of the body material comprises the following components in parts by weight: clay 70-75 parts, feldspar 10-12 parts, talc 4-6 parts, and dolomite 6-8 parts.

[0025] The raw material of the outer body layer comprises the following components in parts by weight: body material 80-85 parts, inorganic stone explosion particles 6-12 parts, and organic stone explosion particles 6-12 parts.

[0026] The inorganic stone explosion particles are quartz stone particles. The particle size of the inorganic stone explosion particles is 0.5-1.5 mm.

[0027] The organic stone explosion particles are plastic rice. The particle size of the organic stone explosion particles is 0.5-1.5 mm.

[0028] The stone explosion texture glazed ceramic of the present application further comprises a powder leading layer covering the surface of the body, the raw material of the powder leading layer is a powder leading slurry, and the raw material of the powder leading slurry comprises the following components in parts by weight: kaolin 20-25 parts, calcined kaolin 10-12 parts, spherical clay 10-12 parts, feldspar 15-20 parts, quartz 5-8 parts, talc 5-8 parts, zircon 5-8 parts, and borax 2-3 parts. The powder leading layer is white after firing, and a milky white glaze is formed on the surface of the body by multiple coating.

[0029] The stone explosion texture glazed ceramic of the present application further comprises a glaze covering the surface of the powder leading layer, and the raw material of the glaze comprises the following components in parts by weight: potash feldspar 40-45 parts, quartz 20-25 parts, limestone 5-8 parts, kaolin 6-9 parts, and talc 2-3 parts. The glaze is transparent after firing, and protects the powder leading layer and the body.

[0030] The preparation method of the stone explosion texture glazed ceramic comprises the following steps:

[0031] Step a, forming a blank body;

[0032] Step b, applying a powder slurry on the surface of the blank body;

[0033] Step c, firing in a kiln; the firing temperature is 1100-1150 degrees Celsius.

[0034] Step d, applying transparent glaze on the surface of the ceramic; after the ceramic is applied with transparent glaze, it is fired again, forming a layer of protective glaze on the surface, thereby softening the surface light, making the surface of the object return to flatness, reducing water absorption, and the surface of the crack is also smooth when touched, and will not scratch the hand.

[0035] Step e, firing in a kiln; the firing temperature is 1150-1200 degrees Celsius, and the holding time is 1-2 hours.

[0036] In step a, the blank is prepared first, the inner blank body is formed using the blank, the inorganic stone explosion particles and the organic stone explosion particles are added to the blank for mixing, then the mixed slurry is applied to the surface of the inner blank body, forming an outer blank layer on the surface of the inner blank body, and the blank is dried. The blank is prepared in a split forming manner, the inner blank body does not add particles that can cause stone explosion, to avoid cracking of the blank, the inner blank body is formed first as the skeleton of the blank; the stone explosion particles are mixed into the raw material of the outer skin layer, so that the outer blank layer will have a stone explosion phenomenon in the subsequent firing, therefore the stone explosion phenomenon is controllable as a whole, only occurs on the surface layer of the blank, and the proportion of stone explosion particles is adjusted within a reasonable range according to the demand, the more stone explosion particles, the more stone explosion lines on the glaze surface after firing; the stone explosion particles will cause stone explosion phenomenon in the firing process, wherein the stone explosion particles are divided into inorganic stone explosion particles and organic stone explosion particles. The inorganic stone explosion particles are quartz stone particles, when the inorganic stone explosion particles are located relatively close to the surface of the outer blank layer, due to the differences in fluidity, shrinkage rate and melting point between the inorganic stone explosion particles and the blank, the inorganic stone explosion particles break through the outer blank layer and the powder guide layer and form cracks, so that the stone explosion phenomenon occurs during firing, thereby forming cracks on the surface of the blank, which are centered on the inorganic stone explosion particles and spread outward, that is, stone explosion lines; when the inorganic stone explosion particles are located close to the middle and bottom of the outer blank layer, after the firing process, the inorganic stone explosion particles do not break through the outer blank layer, and do not have the explosion phenomenon and cracks, only forming convex points on the surface of the blank, which are centered on the stone explosion particles. The organic stone explosion particles are high molecular materials such as plastic rice, which decompose and burn during the firing process and break through the outer blank layer and the powder guide layer, due to incomplete combustion of organic matter, part of the carbon remains in the blank, forming black spots.

[0037] In step b, the powder leading slurry is applied to the surface of the body by multiple brushing to form a powder leading layer on the body; after the powder leading slurry is applied on the body, the local powder leading slurry is removed by a carving tool to expose the inner body, and after firing, the exposed body color pattern is formed; the powder leading slurry is brushed to the surface of the body, and after each brushing of the powder leading slurry, the powder leading slurry is dried for 10-15 minutes, and then the brush is dipped in water and brushed again to strengthen the brush pattern, and the process is repeated multiple times to form complex brush patterns. During the brushing process, uniform brushing is not required, and after multiple brushing, a powder leading layer with uneven thickness is formed on the body, thus forming a concave-convex effect after firing; the body color pattern is formed on the powder leading layer by carving, the glaze and the body color form a contrast, and a retro effect is formed; after firing, the traces of the brush concave-convex are left on the body.

[0038] The above are only some specific embodiments of the present application, but the design concept of the present application is not limited thereto, and any non-essential modification of the present application using this concept shall be deemed to be an infringement of the protection scope of the present application.

Claims

1. Stone-burst textured glazed ceramic, characterized by: The product includes a blank body, comprising an inner blank body and an outer blank layer covering the surface of the inner blank body. The surface of the outer blank layer is distributed with protrusions, stone burst cracks, and black spots. The raw material for the inner blank body is a blank material, which, by weight, comprises the following components: 70-75 parts clay, 10-12 parts feldspar, 4-6 parts talc, and 6-8 parts dolomite. The raw material for the outer blank layer, by weight, comprises the following components: 80-85 parts blank material, 6-12 parts inorganic stone burst particles, and 6-12 parts organic stone burst particles. The inorganic stone burst particles are... The product comprises: quartz particles; organic rock-blasting particles are plastic pellets; and a powder-coating layer covering the surface of the blank, wherein the raw material of the powder-coating layer is a powder-coating slurry, and the raw material of the powder-coating slurry, by weight, includes the following components: 20-25 parts kaolin, 10-12 parts calcined kaolin, 10-12 parts spherical clay, 15-20 parts feldspar, 5-8 parts quartz, 5-8 parts talc, 5-8 parts zircon, and 2-3 parts borax; the particle size of the inorganic rock-blasting particles is 0.5-1.5 mm; and the particle size of the organic rock-blasting particles is 0.5-1.5 mm. The preparation method of stone-burst textured glazed ceramics includes the following steps: Step a: Forming the blank; Step b: Apply powder-based slurry to the surface of the green body; Step c: Firing in a kiln; Step d: Apply a transparent glaze to the ceramic surface; Step e: Re-firing in the kiln; In step a, a billet is first prepared, and an inner blank is formed using the billet. Inorganic rock bursting particles and organic rock bursting particles are added to the billet and mixed. Then, the mixed slurry is applied to the surface of the inner blank to form an outer blank layer on the surface of the inner blank, and the blank is dried.

2. The stone-burst textured glazed ceramic according to claim 1, characterized in that: It also includes a glaze covering the surface of the powder layer, the raw materials of which, by weight, include the following components: 40-45 parts potassium feldspar, 20-25 parts quartz, 5-8 parts limestone, 6-9 parts kaolin, and 2-3 parts talc.

3. The stone-burst textured glazed ceramic according to claim 1, characterized in that: In step b, the powder slurry is applied to the surface of the blank through multiple brushings to form a powder layer on the blank; after applying the powder slurry to the blank, a carving tool is used to remove the local powder slurry to expose the blank inside, and after firing, the texture of the bare blank is formed; the powder slurry is brushed onto the surface of the blank.