Ceramic tile capable of improving cement adhesive force and brick making method

Abstract

The invention provides a ceramic tile capable of improving cement adhesive force, which comprises a facing layer positioned on the uppermost surface of a tile body and a bottom layer positioned on the lowermost surface of the tile body, the bottom layer is composed of two kinds of ceramics with different water absorption rates, and the two kinds of ceramics are respectively low-water-absorption ceramics with the water absorption rate being less than or equal to 0.5% and high-water-absorption ceramics with the water absorption rate being greater than 0.5%. The high-water-absorption ceramic or the low-water-absorption ceramic is distributed in a plaque shape on the outer surface of the bottom layer. The invention also provides a brick making method for preparing the ceramic brick. The ceramic tile has the advantages that the ceramic tile not only has the advantages of antifouling property and high strength of a common ceramic tile, but also has good cement adsorbability and is firmer to lay, auxiliary binders such as an interface agent and ceramic tile glue are not needed in tile laying construction, and the problems of hollowing and falling cannot occur when the tile is laid only by using cement. The ceramic tile prepared by the method disclosed by the invention has the advantages.

Description

Technical Field

[0001] The invention relates to ceramic tiles and a production process thereof. Background Art

[0002] Ceramic tiles, also known as ceramic tiles, benefit from their low water absorption, making them stain-resistant and high-strength. However, low water absorption reduces the adhesion of the tiles to cement. Consequently, existing ceramic tiles generally exhibit poor cement adhesion, leading to hollowing and detachment after installation. While auxiliary adhesives such as primers and tile adhesives can be used to remedy these issues, they increase construction costs and require strict construction conditions. Summary of the Invention

[0003] The present invention aims to provide a ceramic tile capable of improving cement adhesion. The present invention also provides a method for making ceramic tiles capable of improving cement adhesion.

[0004] The present invention is achieved as follows: the ceramic tile for improving cement adhesion includes a finishing layer located at the top of the tile body and a bottom layer located at the bottom of the tile body. In particular, the bottom layer is composed of two ceramics with different water absorption rates, namely low-water absorption ceramic with a water absorption rate of ≤0.5% and high-water absorption ceramic with a water absorption rate of >0.5%. The high-water absorption ceramic or the low-water absorption ceramic is distributed in patches on the outer surface of the bottom layer.

[0005] As a best embodiment, the total area of ​​the high water absorption ceramics on the outer surface of the bottom layer is larger than the total area of ​​the low water absorption ceramics on the outer surface of the bottom layer.

[0006] As the best embodiment, on the outer surface of the bottom layer, the high water absorption ceramics gradually increase from the edges and corners of the bottom layer to the central area of ​​the bottom layer, and the low water absorption ceramics gradually increase from the central area of ​​the bottom layer to the edges and corners of the bottom layer.

[0007] As a best embodiment, there is an intermediate layer, which is located immediately above the bottom layer and is made of low water absorption ceramic with a water absorption of ≤0.5%.

[0008] As a best implementation manner, the thickness of the bottom layer is ≤ 1 / 2 of the overall thickness of the brick body.

[0009] The method of the present invention is achieved as follows: a brick-making method for improving the cement adhesion of ceramic tiles, in which, in the laying process of laying ceramic raw materials on a brick pressing mold, two ceramic raw materials are laid on the same layer when laying the bottom layer of the brick body. The two ceramic raw materials are respectively a low-water-absorption ceramic raw material with a water absorption rate of ≤0.5% after firing and a high-water-absorption ceramic raw material with a water absorption rate of >0.5% after firing. The high-water-absorption ceramic raw material or the low-water-absorption ceramic raw material is distributed in patches along the laid layer.

[0010] As a best embodiment, when laying the bottom layer of the brick body, the total area of ​​the ceramic raw materials with high water absorption is larger than the total area of ​​the ceramic raw materials with low water absorption.

[0011] As the best embodiment, when laying the bottom layer of the brick body, the laying amount of the high water absorption ceramic raw material gradually increases from the edges and corners of the bottom layer of the brick body to the center area of ​​the bottom layer of the brick body, and the laying amount of the low water absorption ceramic raw material gradually increases from the center area of ​​the bottom layer of the brick body to the edges and corners of the bottom layer of the brick body.

[0012] As a best embodiment, an intermediate layer is laid adjacent to the bottom layer of the brick body, and the intermediate layer is made of a low water absorption ceramic material with a water absorption rate of ≤0.5% after firing.

[0013] As a best implementation manner, the thickness of the bottom layer of the brick body is ≤ 1 / 2 of the overall thickness of the brick body.

[0014] The advantages of the present invention are that the high-water-absorption ceramic or low-water-absorption ceramic is distributed in patches on the outer surface of the bottom layer of the tile body. This allows the ceramic tiles of the present invention to have the advantages of conventional ceramic tiles in terms of antifouling and high strength, while also having good cement adsorption properties, resulting in more secure laying. The tile laying process does not require the use of auxiliary adhesives such as interface agents and tile adhesives, and the use of cement alone does not cause hollowing or falling off. The method of the present invention provides the ceramic tiles with the aforementioned structural characteristics and advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of a ceramic tile; Figure 2 is a schematic diagram of the bottom surface of a ceramic tile; Figure 3 It is a schematic diagram of several plaque shapes; Figure 4 This is a second embodiment of a ceramic tile, showing a schematic diagram of the bottom surface of the ceramic tile; Figure 5 This is the third embodiment of the ceramic tile, showing a schematic diagram of the cross-sectional structure of the ceramic tile. DETAILED DESCRIPTION

[0016] To facilitate understanding of the present invention, the present invention is described more fully below by way of examples. The examples provide embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in the examples.

[0017] Ceramic Tile Example 1 See also Figure 1The ceramic tile for improving cement adhesion comprises a facing layer 1 located on the top of the tile body and a bottom layer 2 located on the bottom of the tile body. The bottom layer 2 is composed of two types of ceramics with different water absorption rates, namely, a low water absorption ceramic with a water absorption rate of ≤0.5% and a high water absorption ceramic with a water absorption rate of >0.5%. Figure 2 , high water absorption ceramics are distributed in patches on the outer surface of the bottom layer. Figure 1 and Figure 2 The slashed shading in the figure indicates high-absorption ceramic, while the unshaded areas indicate low-absorption ceramic. Low-absorption ceramic imparts the advantages of stain resistance and high strength to the tile. The high-absorption ceramic exposed on the outer surface of the base layer 2 improves the adhesion between the tile bottom surface and cement, giving the tile excellent cement absorption.

[0018] It should be noted that Figure 1 、 Figure 2 And the following Figure 4 The outline shape of all plaques is drawn the same, and this is only for the convenience of drawing. In fact, the shape of plaques described in the present invention is arbitrary. Figure 3 Several selectable patch shapes are shown, wherein patch A is roughly circular, patch B is roughly square, and patch C is roughly strip-shaped.

[0019] As the best implementation method, Figure 2 As shown, the total area of ​​the outer surface of the bottom layer 2 occupied by the high water absorption ceramics is greater than the total area of ​​the outer surface of the bottom layer 2 occupied by the low water absorption ceramics. Figure 2 The total shaded area is larger than the total unshaded area. This improves the tile's cement adhesion (primarily due to the high water absorption of the ceramic tile) without significantly weakening the tile's strength (primarily due to the low water absorption of the ceramic tile).

[0020] As the best implementation method, Figure 2 As shown, on the outer surface of the base layer 2, the high-water-absorption ceramic gradually increases from the edges and corners of the base layer 2 toward the center, while the low-water-absorption ceramic gradually increases from the center toward the edges and corners. This distribution pattern strengthens the cement adhesion of the tiles from the edges and corners toward the center, helping to prevent hollowing and falling of the tiles after installation. This distribution pattern also helps ensure the strength of the edges and corners of the tiles, reducing the risk of edge and corner collapse.

[0021] Figure 2The illustrated embodiment achieves the structural characteristic that the high-water-absorbency ceramic gradually increases from the edges and corners of the bottom layer 2 to the center region of the bottom layer 2, while the low-water-absorbency ceramic gradually increases from the center region of the bottom layer 2 to the edges and corners of the bottom layer 2, by changing the patch size of the high-water-absorbency ceramic. Alternatively, the same effect can be achieved by changing the distribution density while maintaining the patch size of the high-water-absorbency ceramic essentially unchanged. For example, the distribution density of the high-water-absorbency ceramic patches can be the densest in the center region of the bottom layer 2, with the distribution density becoming sparser the closer to the edges and corners of the bottom layer 2. Alternatively, another embodiment can achieve the same effect by changing both the patch size and the distribution density of the high-water-absorbency ceramic patches.

[0022] As the best implementation method, Figure 1 As shown, the ceramic tile also has an intermediate layer 3, located immediately above the base layer 2. This layer is composed of a low-absorption ceramic with a water absorption rate of ≤0.5%. This low-absorption intermediate layer 3 improves the tile's strength. This increased strength also allows for a larger surface area of ​​high-absorption ceramic in the base layer 2, further enhancing the tile's cement adhesion. Furthermore, the intermediate layer 3 prevents uneven finish layer 1 from being formed by directly using the base layer 2 as a carrier, thereby ensuring its flatness.

[0023] It should be noted that Figure 1 The dotted line in FIG. 1 is only used to illustrate the middle layer 3 , and the actual ceramic tile does not have this dotted line.

[0024] As the best implementation method, Figure 1 As shown, the thickness of the bottom layer 2 is ≤ 1 / 2 of the overall thickness of the brick body. This can further reduce the adverse effects of the bottom layer 2 on the finishing layer 1, preventing the finishing layer 1 from having the same pattern mapping as the bottom layer 2 due to the performance difference between the high-water-absorption ceramic and the low-water-absorption ceramic of the bottom layer 2.

[0025] It should be noted that the bottom surface of ceramic tiles is usually pressed with concave and convex patterns to enhance the adhesion between the bottom surface and cement, and the present invention is no exception. However, in order to simplify the drawings, the concave and convex patterns on the bottom surface of the tiles are omitted in all drawings.

[0026] It should be noted that the high water absorption ceramic and the low water absorption ceramic described in the present invention may have the same color, so that the patch shape described in the present invention may not be directly visible from the appearance of the ceramic tile.

[0027] Ceramic Tile Example 2 See also Figure 4 The only difference between this embodiment and the first embodiment is that the low water absorption ceramic is distributed in patches on the outer surface of the bottom layer. Figure 4The unshaded patches in the figure represent ceramics with low water absorption, and the oblique shadows outside the patches represent ceramics with high water absorption.

[0028] Ceramic Tile Example 3 See also Figure 5 The difference between this embodiment and the first embodiment is that Figure 1 The intermediate layer 3. This embodiment is suitable for applications where there is no requirement for the flatness of the finishing layer, or where the finishing layer is particularly required to have an irregular shape with high and low undulations. For details not described in this embodiment, please refer to the first embodiment.

[0029] Embodiments of the method of the present invention A brick-making method for improving the adhesion of ceramic bricks to cement, in the process of laying ceramic raw materials on the brick pressing mold, two ceramic raw materials are laid on the same layer when laying the bottom layer of the brick body. The two ceramic raw materials are a low water absorption ceramic raw material with a water absorption rate of ≤0.5% after firing and a high water absorption ceramic raw material with a water absorption rate of >0.5% after firing. When laying the bottom layer of the brick body, if the high water absorption ceramic raw material is distributed in patches along the laying layer, a high water absorption ceramic raw material can be obtained after firing. Figure 2 The high water absorption ceramic shown in the figure is distributed in patches; if the low water absorption ceramic raw materials are distributed in patches along the paved surface, the Figure 4 The low water absorption ceramic shown has a patchy distribution structure.

[0030] It should be noted that the two ceramic raw materials described in the method of the present invention can be respectively formed by uniformly mixing multiple ceramic raw materials, that is, the low-water-absorption ceramic raw material with a water absorption rate ≤0.5% after firing can be formed by uniformly mixing multiple ceramic raw materials, and the high-water-absorption ceramic raw material with a water absorption rate >0.5% after firing can also be formed by uniformly mixing multiple ceramic raw materials. The specific components can adopt the existing ceramic raw material formula.

[0031] As a preferred embodiment, when laying the base layer of the tile body, the total area of ​​the high-absorption ceramic material laid is larger than the total area of ​​the low-absorption ceramic material laid. This allows the resulting ceramic tile to have the characteristics of the first embodiment described above: the total area of ​​the outer surface of the base layer occupied by the high-absorption ceramic material is larger than the total area of ​​the outer surface of the base layer occupied by the low-absorption ceramic material.

[0032] As a preferred embodiment, when laying the base layer of the tile body, the amount of high-water-absorption ceramic material laid gradually increases from the edges and corners of the base layer to the center of the base layer, while the amount of low-water-absorption ceramic material laid gradually increases from the center of the base layer to the edges and corners of the base layer. This allows the resulting ceramic tile to have the characteristics of the first embodiment described above: on the outer surface of the base layer of the ceramic tile, the amount of high-water-absorption ceramic material gradually increases from the edges and corners of the base layer to the center of the base layer, while the amount of low-water-absorption ceramic material gradually increases from the center of the base layer to the edges and corners of the base layer.

[0033] In a preferred embodiment, an intermediate layer is placed immediately adjacent to the bottom layer of the tile body. The intermediate layer is formed from a low-water-absorption ceramic material having a water absorption rate of ≤0.5% after firing. This allows the resulting ceramic tile to have the characteristics of the first embodiment described above: the ceramic tile includes an intermediate layer, located immediately above the bottom layer, and formed from a low-water-absorption ceramic material having a water absorption rate of ≤0.5%.

[0034] As a preferred embodiment, the bottom layer thickness of the brick body formed by paving two ceramic materials with different water absorption rates is ≤ 1 / 2 of the overall thickness of the brick body. This allows the finished ceramic tile to have the characteristics of the above-mentioned embodiment 1: the bottom layer thickness of the ceramic tile is ≤ 1 / 2 of the overall thickness of the brick body.

[0035] It should be noted that during the laying process of the ceramic raw materials into the brick pressing mold, the facing layer of the brick body may be laid into the mold first, and the bottom layer of the brick body may be laid into the mold last. Therefore, the bottom layer of the brick body laid into the brick pressing mold during the laying process described in the present invention is not necessarily laid on the bottom layer of the brick pressing mold, but may be laid on the top layer of the brick pressing mold.

[0036] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous modifications or improvements without departing from the scope of the present invention, all of which fall within the scope of the present invention. The scope of protection of this patent shall be determined by the appended claims.

Claims

1. A ceramic tile for improving cement adhesion, comprising a facing layer located on the uppermost portion of the tile body and a base layer located on the lowermost portion of the tile body, characterized by: The bottom layer is composed of two ceramics with different water absorption rates, namely low water absorption ceramic with a water absorption rate ≤ 0.5% and high water absorption ceramic with a water absorption rate > 0.5%. The high water absorption ceramic or the low water absorption ceramic is distributed in patches on the outer surface of the bottom layer.

2. The ceramic tile for improving cement adhesion according to claim 1, wherein: The total area of ​​the high water absorption ceramics on the outer surface of the bottom layer is greater than the total area of ​​the low water absorption ceramics on the outer surface of the bottom layer.

3. The ceramic tile for improving cement adhesion according to claim 1, wherein: On the outer surface of the bottom layer, the high water absorption ceramics gradually increase from the edges and corners of the bottom layer to the central area of ​​the bottom layer, and the low water absorption ceramics gradually increase from the central area of ​​the bottom layer to the edges and corners of the bottom layer.

4. The ceramic tile for improving cement adhesion according to claim 1, wherein: The intermediate layer is located immediately above the bottom layer and is made of ceramic with low water absorption rate of 0.5%.

5. The ceramic tile for improving cement adhesion according to claim 1, wherein: The thickness of the bottom layer is ≤ 1 / 2 of the overall thickness of the brick body.

6. A method for improving the adhesion of ceramic bricks to cement, characterized by: In the process of laying ceramic raw materials into the brick pressing mold, two kinds of ceramic raw materials are laid on the same layer when laying the bottom layer of the brick body. The two kinds of ceramic raw materials are respectively low water absorption ceramic raw materials with a water absorption rate of ≤0.5% after firing and high water absorption ceramic raw materials with a water absorption rate of >0.5% after firing. The high water absorption ceramic raw materials or the low water absorption ceramic raw materials are distributed in patches along the laid layer.

7. The method for improving the cement adhesion of ceramic tiles according to claim 6, wherein: When laying the bottom layer of the brick body, the total area of ​​the ceramic raw materials with high water absorption is larger than the total area of ​​the ceramic raw materials with low water absorption.

8. The method for improving the cement adhesion of ceramic tiles according to claim 6, wherein: When laying the bottom layer of the brick body, the laying amount of the high water absorption ceramic raw material gradually increases from the edges and corners of the bottom layer of the brick body to the center area of ​​the bottom layer of the brick body, and the laying amount of the low water absorption ceramic raw material gradually increases from the center area of ​​the bottom layer of the brick body to the edges and corners of the bottom layer of the brick body.

9. The method for making ceramic tiles to improve cement adhesion according to claim 6, wherein: An intermediate layer is laid adjacent to the bottom layer of the brick body, and the intermediate layer is made of a low-water-absorption ceramic raw material with a water absorption rate of ≤0.5% after firing.

10. The method for making ceramic tiles to improve cement adhesion according to claim 6, wherein: The thickness of the bottom layer of the brick body is ≤ 1 / 2 of the overall thickness of the brick body.

Images