Summary of the invention
The object of the invention is to provide to existing product the ceramic tile and the manufacturing approach thereof of the surface plating gold that a kind of surface has the sense of gold color and luster.
The present invention adopts following technical scheme for realizing above-mentioned purpose:
A kind of ceramic tile of surface plating gold, it is by base substrate, and glaze layer and overlay coating are formed, and it is characterized in that: said overlay coating is a gold coating.
The main composition of said base substrate, middle aluminum pyrophyllite: 10%~15%, high aluminum pyrophyllite: 20%~25%, diopside: 15%~20%, white clay soil: 15%~20%, the soil of realizing: 15%~20%, quartz sand: 3%~5%, high-al clay: 8%~10%.
The main composition of said glaze layer glaze, the zirconium white frit: 45%~50%, potassic feldspar: 15%~20%, dolomite: 5%~10%, kaolin: 20%~25%, ball clay: 10%~15%.
Said gold coating is that gold cream is plated to, and it is mainly formed, gold: 8%~15%, and chloroazotic acid: 30%~50%, thickener: 0.5%~2%, alcohol: 2%~5%, alkali: 30%~50%.
A kind of manufacturing approach of ceramic tile of surface plating gold comprises the following steps:
(1) plain adobe system is done:
By the prescription of each raw material, to put in the ball mill in proportion and grind, fineness of grind leaks into heavy rotten 24h in the mud pit with mud after reaching 5.5 ± 0.5g/100mg; Again with 580 ℃ of heated-air dryings of spray drying tower, form moisture content at 5.8 ± 0.3% powder particle, reenter the powder bucket and store heavy rotten 24h; Be transported to press through conveyer belt and carry out operations for forming; Be pressed into base substrate and after drying, carry out glazing, printing, reenter kiln and burn till, firing temperature is controlled at 1180 ± 10 ℃; Firing period is promptly processed plain brick at 65min;
(2) making of gold cream:
The true yellow gold is dissolved in the wang aqueous solution according to prescription; Through fully carrying out neutralization reaction with alkali again after the dissolving, neutralization reaction back is fully carried out rinsing with alcohol, filters after leaving standstill 8h; Add the viscosity number that thickener is adjusted to requirement behind the elimination impurity and get final product, viscosity number is controlled at about 800pas;
(3) ceramic tile is gold-plated:
Pattern is processed half tone; Gold cream is printed on ceramic tile surface with rubber squeegee; A kind of mode prints to gold cream on the transferable paper, and the marble paper that will be printed on gold cream again is plated to ceramic tile surface, and the ceramic tile that is coated with gold cream is burnt till, solidifies through 800 ℃ of low temperature; With the ceramic tile surface fusion, promptly become the gold-plated ceramic tile of the present invention.
The ceramic tile of the present invention's surface plating gold has good anti-oxidant, and anti-characteristic such as sometimes hot and sometimes cold, wear-resisting has been enriched effect, the decoration of product greatly, uses the effect that more can embody luxury, wealth and rank.
The specific embodiment
The ceramic tile of a kind of surface plating gold as shown in Figure 1, it is by base substrate 1, and glaze layer 2 is formed with overlay coating 3, and said overlay coating is a gold coating.
The concrete manufacturing approach of the present invention is following:
1, the base substrate constitutive material is cooperated in following ratio: middle aluminum pyrophyllite: 10%~15%, high aluminum pyrophyllite: 20%~25%, diopside: 15%~20%, white clay soil: 15%~20%, the soil of realizing: 15%~20%, quartz sand: 3%~5%, high-al clay: 8%~10%.Put in the ball mill and grind, fineness of grind leaks into heavy rotten 24h in the mud pit with mud after reaching 5.5 ± 0.5g/100mg, again with 580 ℃ of heated-air dryings of spray drying tower; Form moisture content at 5.8 ± 0.3% powder particle, reenter the powder bucket and store heavy rotten 24h, be transported to press through conveyer belt and carry out operations for forming; Be pressed into base substrate and after drying, carry out glazing, printing, reenter kiln and burn till, firing temperature is controlled at 1180 ± 10 ℃; Firing period is promptly processed plain brick at 65min.
2, the constitutive material with gold cream cooperates in following ratio: gold: 8%~15%, and chloroazotic acid: 30%~50%, thickener: 0.5%~2%, alcohol: 2%~5%, alkali: 30%~50%.The true yellow gold is dissolved in the wang aqueous solution according to prescription; Through fully carrying out neutralization reaction with alkali again after the dissolving; Neutralization reaction fully back is carried out rinsing with alcohol, filters after leaving standstill 8h, adds the viscosity number that thickener is adjusted to requirement behind the elimination impurity and gets final product; Viscosity number is controlled at 800pas, makes gold cream.
3, glazing on base substrate is burnt till the back and is become biscuit.
4, prepared gold cream is plated in the top layer; Carry out as follows: pattern is processed half tone, gold cream is printed on ceramic tile surface with rubber squeegee, a kind of mode prints to gold cream on the transferable paper; The marble paper that will be printed on gold cream again is plated to ceramic tile surface; The ceramic tile that is coated with gold cream is burnt till, solidifies through 800 ℃ of low temperature,, promptly become the gold-plated ceramic tile of the present invention with the ceramic tile surface fusion.