A flash pearl dry particle and its application

Abstract

The present application belongs to the field of ceramics, and discloses a kind of flash dew dry granules, the mass fraction of the raw material of the flash dew dry granules is composed of: quartz 59-72 parts, soda ash 10-18 parts, calcined talc 3-15 parts, alumina 9-15 parts, sodium silicate 4-13 parts, lithium carbonate 0-1 part.The flash dew dry granules prepared by the present application has relatively large viscosity during the melting process, so that the dry granules are not easy to flow and level, and are not easy to fall off after being combined and adhered with the brick surface, and the surface tends to be spherical under the influence of its own relatively large surface tension, and forms transparent three-dimensional dew after cooling, with clear and round particles, little adhesion, and strong applicability, which can adapt to most face glazes, and does not need to specially adjust the ink for inkjet printing, greatly reducing the production workload.

Description

Technical Field

[0001] This invention belongs to the field of ceramics, specifically relating to a type of sparkling dewdrop dry granules and their applications. Background Technology

[0002] With continuous development and iteration of ceramic technology, new ceramic materials and products are emerging one after another, providing consumers with a wide range of choices in architectural ceramic decoration. Ceramic products that mimic biomimicry and natural forms offer unique decorative effects and are favored by consumers. While there are products on the market that imitate wood grain, stone, crystal patterns, etc., there are very few architectural ceramics that mimic the appearance of water droplets or dewdrops. In nature, when light shines on water droplets or dewdrops, the direction of light changes as it travels from one transparent medium to another, creating refraction and a diamond-like luster. Currently, most ceramic tiles achieve a textured yet smooth effect by using digital molds to create the texture of the tile surface before glazing. Tiles produced using this method have a limited range of effects and struggle to achieve fine, three-dimensional effects.

[0003] If frit dry granules are used, the existing frit dry granules are either used in the glaze or applied separately. The final effect is mostly that the molten material is flat and smooth or difficult to melt and sharp. They are lacking in terms of three-dimensionality and comfortable feel, and cannot achieve the clear and smooth effect of dew. Summary of the Invention

[0004] The purpose of this invention is to overcome at least one deficiency of the prior art and to provide a flash dewdrop granule and its application.

[0005] The technical solution adopted in this invention is:

[0006] In a first aspect, the present invention provides a sparkling dewdrop granule, wherein the raw materials of the sparkling dewdrop granule are composed of the following mass fractions: quartz 59-72 parts, soda ash 10-18 parts, calcined talc 3-15 parts, alumina 9-15 parts, sodium silicate 4-13 parts, and lithium carbonate 0-1 parts.

[0007] In some instances, the preparation method of the glitter dewdrop dry granules is as follows: the raw materials are mixed and melted, kept at a constant temperature, quenched and dried with water, the melt is processed and crushed, and then sieved to obtain the glitter dewdrop dry granules.

[0008] In some instances, the heat preservation time is 1 to 5 hours.

[0009] In some instances, the melting temperature is 1400–1600 °C.

[0010] In some instances, the average particle size of the glitter dewdrop dry particles is 280–330 μm.

[0011] In a second aspect, the present invention provides a ceramic tile with a shimmering dewdrop effect, comprising a body, a glaze layer, an inkjet design, and a shimmering dewdrop granule layer, wherein the shimmering dewdrop granule layer is obtained by applying the shimmering dewdrop granules provided in the first aspect.

[0012] In some instances, the thickness of the glaze layer is 0.1–0.4 mm.

[0013] In some instances, the thickness of the glitter dewdrop dry granule layer is 0.3–1.0 mm.

[0014] In some instances, the application rate of the glitter dewdrop dry particles is 160–350 g / m³. 2 .

[0015] In some examples, the ceramic tiles with the shimmering dewdrop effect are fired at a temperature of 1130–1210°C for a firing time of 30–70 minutes.

[0016] The beneficial effects of this invention are:

[0017] The glitter dewdrop granules prepared by this invention exhibit high viscosity during the firing process, making them difficult to flow and level. They adhere firmly to the tile surface, preventing them from easily falling off. Due to their high surface tension, they tend to form a spherical shape, which, upon cooling, forms transparent, three-dimensional dewdrops with distinct, rounded particles and minimal adhesion. During their own condensation process, the glitter dewdrop granules do not affect the glaze or ink design, and complement the tile design perfectly. Furthermore, the glitter dewdrop granules are highly adaptable, suitable for most glazes, eliminating the need for special adjustments to the glaze or inkjet printing ink, significantly reducing production workload. When applied to ceramics, the glitter dewdrop granules produce a high-refractive gloss dewdrop effect with high transparency and wear resistance, resulting in a natural, realistic, and textured surface. Attached Figure Description

[0018] Figure 1 This is a photograph of the tile sample from Example 1.

[0019] Figure 2 This is a photograph of the tile sample from Example 2.

[0020] Figure 3 This is a photograph of the tile sample from Example 3.

[0021] Figure 4 This is a photograph of the tile sample from Example 4.

[0022] Figure 5 This is a photograph of the tile sample from Example 5.

[0023] Figure 6 This is a photo of the tile sample in Comparative Example 1.

[0024] Figure 7 This is a photo of the tile sample from Comparative Example 2.

[0025] Figure 8 This is a photo of the tile sample in Comparative Example 3.

[0026] Figure 9 This is a photo of the tile sample in Comparison 4.

[0027] Figure 10 This is a photo of the tile sample in scale 5.

[0028] Figure 11 This is a photo of the tile sample in scale 6.

[0029] Figure 12 This is a photo of the tile sample in scale 7. Detailed Implementation

[0030] The following disclosure provides many different implementations or examples for different ways of implementing the present invention.

[0031] The chemical composition of the flashing dewdrop dry granules of the present invention is as follows: SiO2: 70-76%, Al2O3: 9-12%, K2O: 0-1%, Na2O: 14-19%, Li2O: 0-0.5%, Fe2O3: 0-0.5%, CaO: 0-0.5%, MgO: 2-7%, TiO2: 0-0.5%, and unavoidable impurities.

[0032] In some examples of sparkling dewdrop granules, the further preferred chemical composition is: SiO2: 70-73%, Al2O3: 10-11%, K2O: 0-1%, Na2O: 15-17%, Li2O: 0-0.5%, Fe2O3: 0-0.5%, CaO: 0-0.5%, MgO: 4-6%, TiO2: 0-0.5%, and unavoidable impurities.

[0033] The flashing dewdrop dry granules of the present invention are composed of the following raw materials by mass: 59-72 parts quartz, 10-18 parts soda ash, 5-15 parts calcined talc, 9-15 parts alumina, 4-13 parts sodium silicate, and 0-1 parts lithium carbonate.

[0034] In some examples of sparkling dewdrop granules, a further preferred mass composition is: 60-65 parts quartz, 13-15 parts soda ash, 5-8 parts calcined talc, 10-12 parts alumina, 4-10 parts sodium silicate, and 0-1 parts lithium carbonate.

[0035] In this invention, the main components of the sparkling dewdrop granules are silicon dioxide, aluminum oxide, magnesium oxide, sodium oxide, etc., among which silicon dioxide is an important granule-forming oxide, forming an irregular continuous network of silicon-oxygen tetrahedral structural units, which serves as the skeleton of the granules and improves their chemical stability, hardness, mechanical strength, and viscosity. However, since the melting temperature required for pure silicon dioxide is too high, other substances need to be introduced to lower its melting temperature. In this invention, sodium carbonate, sodium silicate, talc, and other materials are selected to assist in melting and cooling. Moreover, silicon dioxide can react with alkali metal oxides and alkaline earth metal oxides at high temperatures to form glassy substances, increasing the hardness of the granules and making them less prone to damage in practical ceramic applications. In addition, the introduction of aluminum oxide and magnesium oxide can improve the forming performance of the granules, increase their high-temperature viscosity, and increase the surface tension of the granules in the molten state. This causes the granules to undergo a significant lateral shrinkage effect in the high-temperature molten state, converging from both sides towards the center to form round, transparent dewdrop-like granules that are not prone to leveling and adhere tightly to the brick surface, making them less likely to fall off.

[0036] In this invention, the melting time of the glitter dewdrop granules is relatively long, which allows for the removal of gas as much as possible during the material melting process, making the granules crystal clear when applied, achieving a transparent and pure light refraction to form a glitter effect.

[0037] The specific raw material composition (parts by mass) and heat preservation time are shown in Table 1. The preparation method of the flash dewdrop dry granules in each example of the present invention includes the following operations:

[0038] S1) Weigh the raw materials according to the chemical composition of the molten metal and mix them thoroughly;

[0039] S2) Pour the mixed raw materials into a split-type stirring melting furnace for high-temperature melting at 1540℃ and hold for a period of time.

[0040] S3) After the holding time is reached, the molten liquid of the flash dew frit is immediately released for water quenching to obtain the flash dew frit, which is then crushed and screened to obtain the dry particles of flash dew.

[0041] Table 1 Raw material composition of the glitter dewdrop granules in different embodiments

[0042]

[0043] Then, the following process is used: body preparation → glaze application → inkjet design → wet application of glitter dewdrop granules → firing, to prepare the brick surface with the glitter dewdrop effect described in each embodiment and comparative example. The thickness of the glaze layer is 0.3 mm, the thickness of the glitter dewdrop granules is 0.5 mm, the same glaze is used, the body is a conventional body, and the firing temperature of the glitter dewdrop granule ceramic is 1150~1220℃ for 60 minutes.

[0044] The ceramic tiles fired in Examples 1-5 and Comparative Examples 1-7 are as follows: Figures 1-12 As shown.

[0045] like Figure 6 As shown, compared with Example 1, the quartz content of Comparative Example 1 is greatly reduced to less than the range, which causes the dry particles of the frit to generate sodium silicate, which is partially soluble in water, easily melts and becomes sticky when heated, and the melting temperature is greatly reduced, so that it melts and flows smoothly on the surface of the ceramic tile.

[0046] like Figure 7 As shown, compared with Example 1, the alumina content of Comparative Example 2 is much higher than the range, and the calcined talc content is less than the range, which leads to a significant increase in the melting temperature of the dry frit particles. The excessive viscosity of the molten liquid easily clogs the outlet of the frit furnace, and the particles on the surface of the ceramic tile are sharp and thorny at high temperatures.

[0047] like Figure 8 As shown, compared with Example 1, the content of alumina and calcined talc in Comparative Example 3 is greatly reduced to less than the range, resulting in low surface tension of the dry frit particles in the molten state, and the molten part flows smoothly and loses the three-dimensional effect of dewdrop.

[0048] like Figure 9 As shown, compared with Example 1, the alumina and calcined talc content of Comparative Example 4 is greatly increased beyond the range, resulting in a significant increase in the melting temperature of the dry frit particles. The excessive viscosity of the molten liquid easily clogs the outlet of the frit furnace, and the particles on the surface of the ceramic tile are sharp and gritty at high temperatures, and the milky white color affects the design.

[0049] like Figure 10 As shown, compared with Example 1, the soda ash content of Comparative Example 5 is greatly increased beyond the range, and the content of calcined talc and alumina is too low, which leads to a decrease in the melting temperature of the dry frit particles, an excessive decrease in the viscosity of the melt, and a loss of the dewdrop texture effect in the molten part of the frit.

[0050] like Figure 11 As shown, compared with Example 1, the quartz content of Comparative Example 6 is greatly increased beyond the range, which leads to a significant increase in the melting temperature of the dry frit particles, a longer required melting and holding time, excessively high viscosity of the melt, and some parts not being completely melted and uniformly fused.

[0051] like Figure 12 As shown, compared with Example 1, the melting and holding time of the molten block in Comparative Example 7 was shortened, some parts were not completely melted and uniform, some parts were transparent and some were milky and white, which affected the design.

[0052] The above is a further detailed description of the present invention and should not be considered as a limitation on the specific implementation of the present invention. For those skilled in the art, simple deductions or substitutions without departing from the concept of the present invention are all within the protection scope of the present invention.

Claims

1. A type of sparkling dewdrop granules, characterized in that, The raw materials for the glitter dewdrop granules are composed of the following mass fractions: quartz 59-72 parts, soda ash 10-18 parts, calcined talc 3-15 parts, alumina 9-15 parts, sodium silicate 4-13 parts, and lithium carbonate 0-1 parts. The preparation method of the glitter dewdrop granules is as follows: the raw materials are mixed and melted at 1400-1600 ℃, kept at the temperature for 1-5 h, water-quenched and dried, the molten material is processed and crushed, and then sieved to obtain the glitter dewdrop granules.

2. The glitter dewdrop granules according to claim 1, characterized in that, The average particle size of the glitter dewdrop dry particles is 280–330 μm.

3. A ceramic tile with a shimmering dewdrop effect, characterized in that, It includes a body, a surface glaze layer, an inkjet design, and a glitter dewdrop granule layer, wherein the glitter dewdrop granule layer is obtained by applying the glitter dewdrop granules as described in claim 1 or 2.

4. The ceramic tile according to claim 3, wherein the thickness of the glaze layer is 0.1 to 0.4 mm.

5. The ceramic tile according to claim 3, wherein the thickness of the glitter dewdrop dry granule layer is 0.3 to 1.0 mm.

6. The ceramic tile according to claim 3, characterized in that, The application rate of the glitter dewdrop dry granules is 160–350 g / m³. 2 .

7. The ceramic tile according to claim 3, wherein the firing temperature of the ceramic tile with the shimmering dew effect is 1130-1210℃ and the firing time is 30-70min.

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