A wear-resistant soft light brick with a translucent texture and its preparation method

Abstract

The present invention discloses a wear-resistant soft-light tile with a translucent texture and a preparation method thereof, which relates to the field of ceramic tile processing. The preparation process includes the following steps: (1) Brick blank pretreatment step: Select a rough brick blank as the substrate, and preheat the polished rough brick blank at a temperature of 40-50 °C for 10-15 minutes; (2) Wear-resistant soft-light treatment step on the surface of the rough brick blank: Add a wear-resistant soft-light liquid, perform grinding, control the grinding coating time, and control the gloss of the brick blank surface to be less than 30°, so as to form a wear-resistant soft-light layer on the surface of the rough brick blank; (3) Soft-light curing treatment step: Drop and coat the soft-light curing liquid, control the dropping speed and the grinding coating time, so as to form a soft-light curing layer on the surface of the rough brick blank. Compared with the existing soft-light ceramic tile products, the soft-light tile of the present invention can achieve excellent results in terms of gloss, stain resistance, and the lasting wear-resistant effect of the translucent texture.

Description

Technical Field

[0001] The present invention relates to the field of processing of soft-light ceramic tiles, and particularly to a wear-resistant soft-light tile with a translucent texture and a preparation method thereof. Background Art

[0002] For a long time in the past, the "ultra-clean and bright" ceramic tiles in the architectural ceramic industry have been favored by many consumers due to their extremely high surface gloss, high hardness, and good anti-fouling performance. However, the ultra-clean and bright ceramic tiles have a high light reflectivity, which is likely to cause light pollution and easily lead to visual fatigue. Therefore, with the continuous improvement of people's living standards, higher requirements have been put forward for the gloss of ceramic plates. In recent years, the market share of soft-light ceramic tiles with a lower gloss has increased rapidly. The gloss of soft-light ceramic tiles is usually controlled between 20° and 55°, enabling light to form scattering rather than specular reflection, effectively avoiding dazzling light spots and glare problems, and especially suitable for the pursuit of soft light in modern homes.

[0003] There are mainly the following three ways to obtain a soft-light effect on the surface of existing soft-light ceramic tiles:

[0004] One is to perform soft polishing on the glaze surface of the ceramic tile to achieve a soft-light effect. The polishing tool of this soft-light process has uneven friction on the glaze surface, resulting in grinding marks on the tile surface and damaging the crystal structure of the glaze surface. There will be fine pores on the surface, which are prone to dirt accumulation, and its anti-fouling performance is poor.

[0005] The second is to apply a specially formulated soft-light glaze on the surface of the ceramic tile and adjust the glaze formula to achieve the purpose of reducing the gloss of the glaze surface; however, the research and development cost of this soft-light method for the glaze is high.

[0006] The third is to apply a silicone oil-based oily soft-light anti-fouling liquid on the surface of the ceramic tile to form a translucent crystal film on the tile surface, increasing the height and maintaining the soft-light effect; for example, Patent CN202310461306.6 discloses an anti-fouling soft-light ceramic tile and a preparation method thereof. Specifically, by coating a dilute and large-particle-size nano-silica sol on the brick blank, it can adhere to the surface of the rough brick blank and can adapt to fill and repair the large pores and cracks of the rough brick blank. Then, on the repaired rough brick blank, a wear-resistant soft-light anti-fouling liquid is coated and polished for glazing and anti-fouling, which can form a translucent crystal film on the tile surface, increasing the height and maintaining the soft-light effect, and having excellent anti-fouling effect.

[0007] However, the soft-light ceramic tiles prepared by the above methods have obvious anti-fouling effects, but the texture of their cured films is relatively soft, and their wear resistance and weather resistance are not durable enough.

[0008] Therefore, there is an urgent need to develop an iterative anti-fouling soft-light ceramic tile. For example, Patent CN202310461306.6 discloses an anti-fouling soft-light ceramic tile, which has a soft light sense and anti-fouling effect, while improving the surface wear resistance and weather resistance of ceramic products, and increasing the product shipment volume and market recognition. Summary of the Invention

[0009] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a wear-resistant soft-light tile with a translucent texture and its preparation method. Compared with existing soft-light ceramic tile products, the wear-resistant soft-light tile with a translucent texture prepared by the present invention can achieve excellent results in terms of the soft-light effect of grinding marks, anti-fouling ability, processing cost, and no bead effect on the brick bottom.

[0010] One of the purposes of the present invention is achieved by adopting the following technical solutions: providing a preparation method of a wear-resistant soft-light tile with a translucent texture, comprising the following steps:

[0011] (1) Brick blank pretreatment step:

[0012] Select a rough brick blank as the substrate, polish the rough brick blank to make its surface flat, and preheat the polished rough brick blank at a temperature of 40 - 50 °C for 10 - 15 minutes;

[0013] (2) Surface wear-resistant soft-light treatment step of the rough brick blank:

[0014] Add a wear-resistant soft-light liquid, and use polishing equipment to polish the surface of the rough brick blank selected in step (1), control the polishing and coating time, and control the glossiness of the brick blank surface to be less than 30°, so as to form a wear-resistant soft-light layer on the surface of the rough brick blank; the wear-resistant soft-light liquid is composed of a boride emulsion, silica sol and water; the boride emulsion is composed of xanthan gum, suspension stabilizer, boron carbide or cubic boron nitride, and the balance of water.

[0015] (3) Soft-light curing treatment step:

[0016] Use polishing equipment to continue to drip and coat a soft-light curing liquid on the surface of the rough brick blank with a wear-resistant soft-light layer obtained in step (2), control the dripping speed and polishing and coating time, so as to form a soft-light curing layer on the surface of the rough brick blank; the soft-light curing liquid is a polyacrylic acid epoxy resin emulsion.

[0017] Optionally, in step (1), the rough brick blank is polished and pretreated on its surface by a conventional polishing equipment equipped with elastic grinding blocks and fiber grinding blocks of different finenesses to make its surface flat, and the glossiness is controlled within 15°.

[0018] Optionally, in step (2), the wear-resistant soft-light liquid includes 3 - 8% by mass of boride emulsion, 40 - 60% by mass of silica sol and the balance of water.

[0019] Optionally, the boronized emulsion is formed by mixing xanthan gum with a mass percentage of 0.1-0.5%, a suspension stabilizer with a mass percentage of 0.3-0.8%, boron carbide or cubic boron nitride with a mass percentage of 8-20%, and the balance of water.

[0020] Optionally, the silica sol includes large particle silica sol with a particle size range of 180-195 nm and large particle silica sol with a particle size range of 130-145 nm, and the mass ratio of the two large particle silica sols is 1:(2-5) in sequence; the silica sol is purchased from the nano silica sol provided by Beijing Decodaojin Technology Co., Ltd.

[0021] Optionally, in step (2), a super bright polishing equipment is used, and soft fiber abrasive is used as the polishing medium; the wear-resistant soft light liquid is dropped and coated on the surface of the rough brick blank, and the dropping speed and polishing coating time are controlled to penetrate into the surface pores of the rough brick blank, and it is repeated twice; then clear water is dropped and polished continuously, and the dropping speed and polishing coating time are controlled to polish off the local agglomeration and uneven particles that appear during the coating process of the wear-resistant soft light liquid, and it is repeated three to five times.

[0022] Optionally, in step (2), the addition amount of the wear-resistant soft light liquid is 2-6 g / m 2 ; the dropping time of the wear-resistant soft light liquid is controlled within 15-25 s, and the polishing coating time is 55-80 s; the revolution speed of the grinding disc of the super bright polishing equipment is 25-35 r / min, and the rotation speed of the soft fiber abrasive installed on the grinding disc is 900-1000 r / min; the addition amount of the clear water is 15-25 g / m 2 ; the dropping time of the clear water is controlled within 15-25 s, and the polishing coating time is 20-45 s; the revolution speed of the grinding disc of the super bright polishing equipment is 90-135 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 900-1000 r / min.

[0023] Optionally, in step (3), the soft light curing liquid is a polyacrylic epoxy resin emulsion with a mass percentage of 50-70%.

[0024] Optionally, in step (3), a super bright polishing equipment is used, and fiber abrasive is used as the polishing medium; a layer of soft light curing liquid is quickly coated on the surface of the rough brick blank by using the fiber abrasive in the super bright polishing equipment, and the addition amount of the soft light curing liquid is 10-15 ml / m 2 , the dropping time is controlled within 15-25 s, the polishing coating time is 35-60 s, the revolution speed of the grinding disc of the super bright polishing equipment is 80-120 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 1200-1400 r / min;

[0025] The soft light-curing liquid penetrates into the surface and interior of the wear-resistant soft light layer, and is finally cured for 30 - 60 minutes at a temperature of 400 - 600 °C to obtain a wear-resistant soft light brick with a translucent texture.

[0026] The second object of the present invention is achieved by the following technical solution: providing a wear-resistant soft light brick with a translucent texture, which is prepared by the preparation method described above.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] Compared with the existing soft light ceramic brick products, the soft light brick of the present invention can achieve excellent results in terms of glossiness, stain resistance, and the lasting wear-resistant effect of the translucent texture. The specific analysis is as follows: In the present invention, a large-particle-size nano-silica sol mixed with a boronized emulsion is coated on the rough brick blank, so that it adheres to the surface of the rough brick blank, and can adapt to fill and repair the large pores and cracks of the rough brick blank. In addition, the boronized emulsion has high hardness and can form a stable system with the silica sol, and can form a crystal film with high hardness and wear resistance on the brick surface. The subsequent soft light curing process can well cure the crystal film, and at the same time increase the soft light feeling of the film layer to form a translucent cured layer with excellent lasting translucent effect. Specific Embodiments

[0029] Next, in combination with specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0030] In the present invention, unless otherwise specified, all parts and percentages are in weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are conventional methods in the art unless otherwise specified.

[0031] The present invention provides a preparation method for a wear-resistant soft light brick with a translucent texture, including the following steps:

[0032] (1) Brick blank pretreatment step:

[0033] Select a rough brick blank as the substrate, polish the rough brick blank to make its surface flat, and preheat the polished rough brick blank at a temperature of 40 - 50 °C for 10 - 15 minutes; wherein, the rough brick blank used in the present invention is selected from a rough brick blank with an enamel layer or a rough brick blank without an enamel layer.

[0034] (2) Wear-resistant soft light treatment step on the surface of the rough brick blank:

[0035] Add wear-resistant soft light liquid, and use polishing equipment to polish the surface of the rough brick blank selected in step (1), control the polishing and coating time, and control the gloss of the brick blank surface to be less than 30°, so as to form a wear-resistant soft light layer on the surface of the rough brick blank; the wear-resistant soft light liquid is composed of boride emulsion, silica sol and water; the boride emulsion is composed of xanthan gum, suspension stabilizer, boron carbide or cubic boron nitride, and the balance of water mixed together;

[0036] (3)Soft light curing treatment step:

[0037] Use the polishing equipment to continue to drip and coat the soft light curing liquid on the surface of the rough brick blank with a wear-resistant soft light layer obtained in step (2), control the dripping speed and the polishing and coating time, so as to form a soft light curing layer on the surface of the rough brick blank; the soft light curing liquid is polyacrylic acid epoxy resin emulsion.

[0038] As a further preferred solution, in step (1), the rough brick blank is subjected to surface polishing pretreatment by a conventional polishing equipment equipped with elastic abrasive blocks and fiber abrasive blocks of different thicknesses, so that its surface is flat and the gloss is controlled within 15°.

[0039] As a further preferred solution, in step (2), the wear-resistant soft light liquid includes 3-8% by mass of boride emulsion, 40-60% by mass of silica sol and the balance of water.

[0040] As a further preferred solution, the boride emulsion is composed of 0.1-0.5% by mass of xanthan gum, 0.3-0.8% by mass of suspension stabilizer, 8-20% by mass of boron carbide or cubic boron nitride, and the balance of water mixed together.

[0041] As a further preferred solution, the silica sol includes large particle silica sol with a particle size range of 180-195nm and large particle silica sol with a particle size range of 130-145nm, and the mass ratio of the two large particle silica sols is 1:(2-5) in turn; the silica sol is purchased from the nano silica sol provided by Beijing Decode Island Gold Technology Co., Ltd.

[0042] As a further preferred solution, in step (2), use a super bright polishing equipment with soft fiber abrasive as the polishing medium; drip and coat the wear-resistant soft light liquid on the surface of the rough brick blank, control the dripping speed and the polishing and coating time, so that it penetrates into the surface pores of the rough brick blank, and repeat twice; then drip clean water and continue to polish, control the dripping speed and the polishing and coating time, and polish off the local agglomeration and uneven particles that appear during the coating process of the wear-resistant soft light liquid, and repeat three to five times.

[0043] As a further preferred solution, in step (2), the addition amount of the wear-resistant soft light liquid is 2-6g / m 2; The dripping time of the wear-resistant soft light liquid is controlled within 15 - 25 s, and the grinding and coating time is 55 - 80 s; The revolving speed of the grinding disc of the ultra-clean bright polishing equipment is 25 - 35 r / min, and the revolving speed of the soft fiber abrasive installed on the grinding disc is 900 - 1000 r / min; The addition amount of the clear water is 15 - 25 g / m 2 ; The dripping time of the clear water is controlled within 15 - 25 s, and the grinding and coating time is 20 - 45 s; The revolving speed of the grinding disc of the ultra-clean bright polishing equipment is 90 - 135 r / min, and the revolving speed of the fiber abrasive installed on the grinding disc is 900 - 1000 r / min.

[0044] As a further preferred solution, in step (3), the soft light curing liquid is a polyacrylic acid epoxy resin emulsion with a mass percentage of 50 - 70%.

[0045] As a further preferred solution, in step (3), an ultra-clean bright polishing equipment is adopted, and the fiber abrasive is used as the grinding medium; The fiber abrasive in the ultra-clean bright polishing equipment is used to quickly coat a layer of soft light curing liquid on the surface of the rough brick blank, and the addition amount of the soft light curing liquid is 10 - 15 ml / m 2 , the dripping time is controlled within 15 - 25 s, the grinding and coating time is 35 - 60 s, the revolving speed of the grinding disc of the ultra-clean bright polishing equipment is 80 - 120 r / min, and the revolving speed of the fiber abrasive installed on the grinding disc is 1200 - 1400 r / min;

[0046] The soft light curing liquid penetrates into the surface and interior of the wear-resistant soft light layer, and finally is cured for 30 - 60 min at a temperature of 400 - 600 °C to obtain a wear-resistant soft light brick with a translucent texture.

[0047] The present invention also provides a wear-resistant soft light brick with a translucent texture, which is prepared by the preparation method of the wear-resistant soft light brick with a translucent texture as described above.

[0048] The following are specific embodiments of the present invention. The raw materials, equipment, etc. used in the following embodiments can be obtained by purchase except for special limitations.

[0049] Take each component according to the formula in Table 1 below, and respectively prepare the wear-resistant soft light liquid according to the following preparation method for use in each embodiment.

[0050] Table 1 shows the formula composition of the wear-resistant soft light liquid for each embodiment

[0051]

[0052] Note: The boride emulsion in Table 1 is composed of xanthan gum with a mass percentage of 0.3%, a suspension stabilizer with a mass percentage of 0.5%, boron carbide with a mass percentage of 12%, and the balance of water. The silica sol includes large particle silica sol with a particle size range of 180 - 195 nm and large particle silica sol with a particle size range of 130 - 145 nm. The mass ratio of the two large particle silica sols is 1:4 in sequence. The silica sol is purchased from the nano silica sol provided by Beijing Decodaojin Technology Co., Ltd.

[0053] Examples 1 - 4 and Comparative Examples 1 - 9

[0054] Among them, for the rough brick blanks of Examples 1 - 4 and Comparative Examples 1 - 7, the same batch of rough brick blanks produced by a certain company on the market are selected. The rough brick blanks are the rough brick blanks after being pressed by a press, and the above - mentioned rough brick blanks are surface - treated according to the preparation processes of Examples 1 - 4 and Comparative Examples 1 - 7 respectively. Comparative Examples 8 - 9 are common existing soft - light bricks, which are purchased from different ceramic manufacturers.

[0055] Example 1

[0056] A wear - resistant soft - light brick with a translucent texture, and its preparation method includes the following steps:

[0057] (1) Brick blank pretreatment step:

[0058] Select a rough brick blank as the substrate, polish the rough brick blank to make its surface flat and control the gloss within 15°. The polished rough brick blank is pre - heated at 40°C for 15 min.

[0059] (2) Wear - resistant soft - light treatment step for the surface of the rough brick blank:

[0060] Add a wear - resistant soft - light liquid, and use polishing equipment to polish the surface of the rough brick blank selected in step (1), control the polishing and coating time, and control the gloss of the brick blank surface to be less than 30°, so as to form a wear - resistant soft - light layer on the surface of the rough brick blank; the wear - resistant soft - light liquid adopts the corresponding formula in Table 1.

[0061] Specifically, use a super - bright polishing equipment with soft fiber abrasive as the polishing medium; drop and coat the wear - resistant soft - light liquid on the surface of the rough brick blank treated in step (1), control the dropping speed and polishing and coating time to make it penetrate into the surface pores of the rough brick blank, and repeat twice; then drop clear water and continue polishing, control the dropping speed and polishing and coating time, and polish off the local agglomeration and uneven particles that appear during the repair of the wear - resistant soft - light liquid, and repeat four times.

[0062] The addition amount of the wear - resistant soft - light liquid is 3 g / m 2; The dripping time of the wear-resistant soft light liquid is controlled within 15 s, and the grinding and coating time is 55 s; the revolving speed of the grinding disc of the super-clean bright polishing equipment is 25 r / min, and the revolving speed of the fiber abrasive mounted on the grinding disc is 900 r / min; the addition amount of the clear water is 15 g / m 2 ; The dripping time of the clear water is controlled within 15 s, and the grinding and coating time is 20 s; the revolving speed of the grinding disc of the super-clean bright polishing equipment is 90 r / min, and the revolving speed of the fiber abrasive mounted on the grinding disc is 900 r / min.

[0063] (3) Soft light curing treatment step:

[0064] Using the polishing equipment, continue to drip and coat the soft light curing liquid on the surface of the rough brick blank with the wear-resistant soft light layer obtained in step (2), and control the dripping speed and the grinding and coating time, so as to form a soft light curing layer on the surface of the rough brick blank.

[0065] Specifically, a super-clean bright polishing equipment is adopted, and the fiber abrasive is used as the grinding medium; the fiber abrasive in the super-clean bright polishing equipment is used to quickly coat a layer of soft light curing liquid on the surface of the rough brick blank. The soft light curing liquid is a polyacrylic acid epoxy resin emulsion with a mass percentage of 50%. The addition amount of the soft light curing liquid is 10 ml / m 2 , the dripping time is controlled within 15 s, the grinding and coating time is 35 s, the revolving speed of the grinding disc of the super-clean bright polishing equipment is 80 r / min, and the revolving speed of the fiber abrasive mounted on the grinding disc is 1200 r / min;

[0066] The soft light curing liquid penetrates into the surface and the interior of the wear-resistant soft light layer, and finally is cured for 60 min at a temperature of 400 °C to obtain a wear-resistant soft light brick with a translucent texture.

[0067] Example 2

[0068] A wear-resistant soft light brick with a translucent texture, and its preparation method includes the following steps:

[0069] (1) Brick blank pretreatment step:

[0070] Select a rough brick blank as the substrate, polish the rough brick blank to make its surface flat, and control the gloss within 15°. The polished rough brick blank is preheated at a temperature of 45 °C for 12 min;

[0071] (2) Wear-resistant soft light treatment step on the surface of the rough brick blank:

[0072] Add the wear-resistant soft light liquid, and use the polishing equipment to polish the surface of the rough brick blank selected in step (1), control the grinding and coating time, and control the gloss of the brick blank surface to be less than 30°, so as to form a wear-resistant soft light layer on the surface of the rough brick blank; the wear-resistant soft light liquid adopts the corresponding formula in Table 1;

[0073] Specifically, a super bright polishing equipment is adopted, and soft fiber abrasive is used as the polishing medium; the wear-resistant soft light liquid is dropped and coated on the surface of the rough brick blank processed in step (1), and the dropping speed and polishing coating time are controlled to make it penetrate into the surface pores of the rough brick blank, and this is repeated twice; then clear water is dropped and polishing continues, controlling the dropping speed and polishing coating time to polish off the local agglomeration and uneven particles that appear during the repair process of the wear-resistant soft light liquid, and this is repeated four times.

[0074] The addition amount of the wear-resistant soft light liquid is 5 g / m 2 ; the dropping time of the wear-resistant soft light liquid is controlled within 20 s, and the polishing coating time is 65 s; the revolution speed of the grinding disc of the super bright polishing equipment is 30 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 950 r / min; the addition amount of the clear water is 20 g / m 2 ; the dropping time of the clear water is controlled within 20 s, and the polishing coating time is 35 s; the revolution speed of the grinding disc of the super bright polishing equipment is 105 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 950 r / min.

[0075] (3) Soft light curing treatment step:

[0076] Using the polishing equipment, continue to drop and coat the soft light curing liquid on the surface of the rough brick blank with a wear-resistant soft light layer obtained in step (2), and control the dropping speed and polishing coating time to form a soft light curing layer on the surface of the rough brick blank.

[0077] Specifically, a super bright polishing equipment is adopted, and fiber abrasive is used as the polishing medium; the fiber abrasive in the super bright polishing equipment is used to quickly coat a layer of soft light curing liquid on the surface of the rough brick blank. The soft light curing liquid is a polyacrylic acid epoxy resin emulsion with a mass percentage of 60%. The addition amount of the soft light curing liquid is 12 ml / m 2 , the dropping time is controlled within 20 s, the revolution speed of the grinding disc of the super bright polishing equipment is 100 r / min, the rotation speed of the fiber abrasive installed on the grinding disc is 1300 r / min, and the polishing coating time is 50 s;

[0078] The soft light curing liquid penetrates into the surface and interior of the wear-resistant soft light layer, and finally is cured at a temperature of 500 °C for 30 - 60 min to obtain a wear-resistant soft light brick with a translucent texture.

[0079] Example 3

[0080] A wear-resistant soft light brick with a translucent texture, and its preparation method includes the following steps:

[0081] (1) Brick blank pretreatment step:

[0082] Select a thick brick blank as the substrate. After polishing, the thick brick blank is made to have a flat surface and the glossiness is controlled within 15°. The polished thick brick blank is preheated at 50°C for 10 minutes.

[0083] (2)Surface repair steps for the thick brick blank:

[0084] Add wear-resistant soft light liquid, and use polishing equipment to polish and repair the surface of the thick brick blank selected in step (1). Control the polishing and coating time so that the glossiness of the surface of the thick brick blank is less than 30°; use an ultra-bright polishing equipment with fiber abrasive as the polishing medium; the wear-resistant soft light liquid adopts the formula corresponding to Table 1.

[0085] Specifically, drop and coat the wear-resistant soft light liquid on the surface of the thick brick blank treated in step (1), control the dropping speed and the polishing and coating time, so that it penetrates into the surface pores of the thick brick blank, and repeat twice; then drop clear water and continue polishing, control the dropping speed and the polishing and coating time, and polish off the local agglomeration and uneven particles that appear during the repair process of the wear-resistant soft light liquid, and repeat four times.

[0086] The addition amount of the wear-resistant soft light liquid is 6 g / m 2 ; the dropping time of the wear-resistant soft light liquid is controlled within 25 s, and the polishing and coating time is 80 s; the revolving speed of the grinding disc of the ultra-bright polishing equipment is 35 r / min, and the revolving speed of the fiber abrasive installed on the grinding disc is 1000 r / min; the addition amount of the clear water is 25 g / m 2 ; the dropping time of the clear water is controlled within 25 s, and the polishing and coating time is 45 s; the revolving speed of the grinding disc of the ultra-bright polishing equipment is 135 r / min, and the revolving speed of the fiber abrasive installed on the grinding disc is 1000 r / min.

[0087] (3)Soft light curing treatment steps:

[0088] Use polishing equipment to continue dropping and coating soft light curing liquid on the surface of the thick brick blank with a wear-resistant soft light layer obtained in step (2), and control the dropping speed and the polishing and coating time so that a soft light curing layer is formed on the surface of the thick brick blank.

[0089] Specifically, use an ultra-bright polishing equipment with fiber abrasive as the polishing medium; use the fiber abrasive in the ultra-bright polishing equipment to quickly coat a layer of soft light curing liquid on the surface of the thick brick blank. The soft light curing liquid is a polyacrylic acid epoxy resin emulsion with a mass percentage of 70%. The addition amount of the soft light curing liquid is 15 ml / m 2 , the dropping time is controlled within 25 s, the revolving speed of the grinding disc of the ultra-bright polishing equipment is 120 r / min, the revolving speed of the fiber abrasive installed on the grinding disc is 1400 r / min, and the polishing and coating time is 60 s;

[0090] The soft light-curing liquid penetrates into the surface and interior of the wear-resistant soft light layer, and finally cures at 600 °C for 30 min to obtain a wear-resistant soft light brick with a translucent texture.

[0091] Example 4

[0092] The difference between Example 4 and Example 2 is that in the formula of the wear-resistant soft light liquid in step (2), cubic boron nitride is used instead of boron carbide to prepare the boronized emulsion. Specifically, the boronized emulsion is composed of xanthan gum with a mass percentage of 0.3%, suspension stabilizer with a mass percentage of 0.5%, cubic boron nitride with a mass percentage of 12%, and the balance of water. The remaining steps, conditions, and reagent formulas are basically the same as those in Example 2.

[0093] Comparative Example 1

[0094] The difference between Comparative Example 1 and Example 2 is that it is prepared by using the preparation method of Example 2 in the specification of the anti-fouling soft light ceramic tile with Chinese Patent No. CN202310461306.6.

[0095] Comparative Example 2

[0096] The difference between Comparative Example 2 and Example 2 is that in step (1), the rough brick blank lacks the preheating step: the polished rough brick blank is preheated at 40 - 50 °C for 10 - 15 min. The remaining steps, conditions, and reagent formulas are basically the same as those in Example 2.

[0097] Comparative Example 3

[0098] The difference between Comparative Example 3 and Example 2 is that in the formula of the wear-resistant soft light liquid in step (2), the boronized emulsion is missing, that is, the soft light liquid is composed of silica sol with a mass percentage of 50% and the balance of water. The remaining steps, conditions, and reagent formulas are basically the same as those in Example 2.

[0099] Comparative Example 4

[0100] The difference between Comparative Example 4 and Example 2 is that in the formula of the wear-resistant soft light liquid in step (2), the dosage of boron carbide is greater than the upper limit, which is 25%. The remaining steps, conditions, and reagent formulas are basically the same as those in Example 2.

[0101] Comparative Example 5

[0102] The difference between Comparative Example 5 and Example 2 is that in the formula of the wear-resistant soft light liquid in step (2), the dosage of boron carbide is less than the lower limit, which is 6%. The remaining steps, conditions, and reagent formulas are basically the same as those in Example 2.

[0103] Comparative Example 6

[0104] The difference between Comparative Example 6 and Example 2 is that in the formulation of the wear-resistant softening liquid in step (2), the boronized emulsion in the wear-resistant softening liquid does not require pre-emulsification treatment, and boron carbide is directly added to the wear-resistant softening liquid. That is, the softening liquid is composed of a mixture of 50% by mass of silica sol and the balance of water. The remaining steps, conditions, and reagent formulas used are basically the same as those in Example 2.

[0105] Comparative Example 7

[0106] The difference between Comparative Example 7 and Example 2 is that the soft light curing step in step (3) is missing. The remaining steps, conditions and reagent formulas used are basically the same as those in Example 2.

[0107] Comparative Example 8

[0108] The existing soft-light ceramic tiles with a glaze layer are soft-light brick finished products purchased from Zhuhai Baitu Ceramics Co., Ltd. The general process of the soft-light brick is to apply conventional glaze on the surface of the brick, and then soft-polish the glaze surface of the ceramic tile using a conventional soft-polishing process.

[0109] Comparative Example 9

[0110] The existing soft-gloss ceramic tiles with a glaze layer are soft-gloss brick finished products purchased from Guangdong Dongpeng Holdings Co., Ltd. The soft-gloss bricks are generally made by applying a layer of soft-gloss glaze on the surface of the brick.

[0111] Effect evaluation and performance testing

[0112] The performance of the soft light ceramic tiles of Examples 1-4 and Comparative Examples 1-9 was tested, and the glossiness, anti-fouling ability, translucent texture and long-lasting wear resistance of the soft light ceramic tiles were tested and recorded. The test items and results are shown in Table 2 below.

[0113] Among them, the glossiness is tested according to GB / T13891-2008 standard, and the anti-fouling ability refers to using red, blue and black pens to paint on the surface of the tile. After the handwriting is fully dry, it is washed with detergent and water to observe whether it is clean. It is divided into multiple levels according to the degree of cleanliness.

[0114] The test of the translucent texture and long-lasting wear resistance of the soft light ceramic tile surface refers to repeatedly rubbing the bottom surface of the ceramic tile prepared in each embodiment with a brush within a specified time, rubbing 10 times a day, each time for 10 minutes, for a total of 28 days to simulate the scene of repeated stepping on shoes after the tiles are laid, and finally observing the translucent texture of the tile surface.

[0115] Table 2 shows the performance test results of the soft light ceramic tiles of Examples 1-4 and Comparative Examples 1-9

[0116] Glossiness Anti-fouling ability The durability of the transparent texture on the tile surface against wear Example 1 38 Excellent After 28 days of testing, the tile surface has a transparent texture and is durable Example 2 42 Optimal After 28 days of testing, the tile surface has a transparent texture and is durable and wear-resistant Example 3 35 Excellent After 28 days of testing, the tile surface has a transparent texture and is durable Example 4 41 Optimal After 28 days of testing, the tile surface has a transparent texture and is durable and wear-resistant Comparative Example 1 40 Optimal The transparent texture of the tile surface starts to decline around 3 days Comparative Example 2 38 Poor The transparent texture of the tile surface starts to decline around 21 days Comparative Example 3 33 Poor The transparent texture of the tile surface starts to decline around 6 days Comparative Example 4 35 Poor The transparent texture of the tile surface starts to decline around 10 days Comparative Example 5 32 Poor The transparent texture of the tile surface starts to decline around 12 days Comparative Example 6 37 Poor The transparent texture of the tile surface starts to decline around 4 days Comparative Example 7 38 Good The glossiness of the tile surface starts to decline around 4 days Comparative Example 8 46 Excellent The glossiness of the tile surface starts to decline around 5 days Comparative Example 9 40 Excellent The glossiness of the tile surface starts to decline around 4 days

[0117] As can be seen from the above table, compared with the existing soft-light ceramic tile products of Comparative Examples 8-9, the soft-light tiles of Examples 1-4 can achieve excellent results in terms of glossiness, stain resistance, and the lasting wear-resistant effect of the translucent texture. In particular, Example 2 has a high lasting degree of the translucent texture, is wear-resistant without loss, and is the optimal implementation method.

[0118] Compared with Example 2, in Comparative Example 1, a silicone oil-based material is used to cure into a soft-light film. Although the stain resistance effect is obvious, the texture of the cured film is relatively soft, and the wear resistance and weather resistance are not durable enough.

[0119] Compared with Example 2, in Comparative Example 2, in step (1), the preheating process is lacking, which cannot make the pores of the rough brick blank open, and the microscopic pores are not fully filled, seriously affecting the absorption and curing of the subsequent wear-resistant soft-light material, resulting in poor stain resistance of the ceramic tile.

[0120] Compared with Example 2, in Comparative Example 3, in the formula of the wear-resistant soft-light liquid in step (2), the boronized emulsion is lacking, and the crystallinity density of the filler is insufficient, reducing the hardness and wear resistance of the crystalline layer, and the lightness and stain resistance performance become poor, and the lasting translucent time of the crystalline film is short.

[0121] Compared with Example 2, in Comparative Examples 4-5, in the formula of the wear-resistant soft-light liquid in step (2), excessive or insufficient boron carbide or cubic boron nitride cannot form a lasting translucent crystalline film on the brick surface, reducing the glossiness and lasting translucency of the brick surface to a certain extent.

[0122] Compared with Example 2, in Comparative Example 6, boron carbide is directly added to the wear-resistant soft-light liquid without pre-emulsification treatment, which will affect the stability of the boronized emulsion system, form precipitation, and the formed crystalline film has low stability and a short maintenance time of the transparency.

[0123] Compared with Example 2, Comparative Example 7 lacks the soft-light curing step in step (3), and the curing effect of the formed crystalline film is not good, and its transparency maintenance time is short.

[0124] The above implementation methods are only the preferred implementation methods of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A preparation method of a wear-resistant soft light brick with a translucent texture, characterized in that, It includes the following steps: (1) Pretreatment step of brick blank: Select a rough brick blank as the substrate, polish the rough brick blank to make its surface flat, and preheat the polished rough brick blank at a temperature of 40 - 50 °C for 10 - 15 min; (2) Wear-resistant and soft light treatment step on the surface of the rough brick blank: Add wear-resistant and soft light liquid, use polishing equipment to polish the surface of the rough brick blank obtained in step (1), control the polishing and coating time, control the gloss of the brick blank surface to be less than 30°, and form a wear-resistant and soft light layer on the surface of the rough brick blank; The wear-resistant and soft light liquid is composed of a boronized emulsion with a mass percentage of 3 - 8%, a silica sol with a mass percentage of 40 - 60%, and the balance of water; the boronized emulsion is composed of xanthan gum with a mass percentage of 0.1 - 0.5%, a suspension stabilizer with a mass percentage of 0.3 - 0.8%, boron carbide or cubic boron nitride with a mass percentage of 8 - 20%, and the balance of water; (3) Soft light curing treatment step: Use polishing equipment to continue to drip and coat the soft light curing liquid on the surface of the rough brick blank with a wear-resistant and soft light layer obtained in step (2), control the dripping speed and polishing and coating time, and form a soft light curing layer on the surface of the rough brick blank; the soft light curing liquid is a polyacrylic acid epoxy resin emulsion.

2. The preparation method of the wear-resistant soft-light brick with a translucent texture according to claim 1, characterized in that In step (1), the rough brick blank is polished and pretreated on its surface by a conventional polishing equipment to make its surface flat, and the gloss is controlled within 15°.

3. The preparation method of the wear-resistant soft light brick with a translucent texture as described in claim 1, characterized in that, The silica sol includes large particle silica sol with a particle size range of 180 - 195 nm and large particle silica sol with a particle size range of 130 - 145 nm, and the mass ratio of the two large particle silica sols is 1:(2 - 5) in sequence; the silica sol is purchased from the nano silica sol provided by Beijing Decode Island Gold Technology Co., Ltd.

4. The preparation method of the wear-resistant soft-light brick with a translucent texture as described in claim 1, wherein, In step (2), use a super bright polishing equipment with soft fiber abrasive as the polishing medium; drip and coat the wear-resistant and soft light liquid on the surface of the rough brick blank, control the dripping speed and polishing and coating time, and make it penetrate into the surface pores of the rough brick blank, repeat twice; then drip clean water and continue to polish, control the dripping speed and polishing and coating time, and polish off the local agglomeration and uneven particles that appear during the coating process of the wear-resistant and soft light liquid, repeat three to five times.

5. The preparation method of the wear-resistant soft-light brick with a translucent texture according to claim 4, characterized in that, In step (2), the addition amount of the wear-resistant soft light liquid is 2-6 g / m 2 ; the dropping time of the wear-resistant soft light liquid is controlled within 15-25 s, and the grinding and coating time is 55-80 s; the revolution speed of the grinding disc of the ultra-clean bright polishing equipment is 25-35 r / min, and the rotation speed of the soft fiber abrasive installed on the grinding disc is 900-1000 r / min; the addition amount of the clear water is 15-25 g / m 2 ; the dropping time of the clear water is controlled within 15-25 s, and the grinding and coating time is 20-45 s; the revolution speed of the grinding disc of the ultra-clean bright polishing equipment is 90-135 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 900-1000 r / min.

6. The preparation method of the wear-resistant soft light brick with a translucent texture as described in claim 1, wherein In step (3), the soft light curing liquid is a polyacrylic acid epoxy resin emulsion with a mass percentage of 50 - 70%.

7. The preparation method of the wear-resistant soft-light brick with a translucent texture as described in claim 1, characterized in that, In step (3), a super bright polishing equipment is adopted, and fiber abrasive is used as the polishing medium; the fiber abrasive in the super bright polishing equipment is used to quickly coat a layer of soft light curing liquid on the surface of the rough brick blank, and the addition amount of the soft light curing liquid is 10-15 ml / m 2 , the dropping time is controlled within 15-25 s, the polishing and coating time is 35-60 s, the revolution speed of the grinding disc of the super bright polishing equipment is 80-120 r / min, and the rotation speed of the fiber abrasive installed on the grinding disc is 1200-1400 r / min; The soft light curing liquid penetrates into the surface and interior of the wear-resistant and soft light layer, and finally cures at a temperature of 400 - 600 °C for 30 - 60 min to obtain a wear-resistant and soft light brick with a translucent texture.

8. A wear-resistant soft light tile with a translucent texture, characterized in that, It is prepared by the preparation method according to any one of claims 1 - 7.

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