Manufacturing method of PVC floor tile, PVC floor tile and manufacturing equipment
A production method and floor tile technology, applied in chemical instruments and methods, lamination auxiliary operations, lamination, etc., can solve the problems affecting the appearance and performance of PVC floor tiles, the downward movement of the printing layer 92 is blocked, and the fusion is hindered.
Active Publication Date: 2019-07-09
SHANGHAI JINKA FLOORING TECH
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AI-Extracted Technical Summary
Problems solved by technology
[0004] Yet in this manufacturing method, because the property of glass fiber is comparatively stable, is a kind of infusible and insoluble substance, when glass fiber is put between the first PVC layer 93 and the second PVC layer 95, glass fiber will hinder the first PVC layer 93 and the second PVC layer 95. The fusing between a PVC layer 93 ...
Method used
Before the first glass fiber layer 11 is embedded into the second PVC layer 22, in order to ensure the consistency of the second PVC layer 22 thickness, the second PVC layer 22 also needs to go through the step of determining the thickness, in the present embodiment, as As shown in Figures 5 and 6, before the first glass fiber layer 11 is embedded in the second PVC layer 22, the second PVC layer 22 needs to pass through a pair of calendering rolls 51, and the thickness of the second PVC layer 22 is determined by the calendering rolls 51. , to ensure the precise size of PVC floor tiles.
In summary, in the present invention, by embedding the first glass fiber layer 11 in the second PVC layer 22 in advance, the first PVC layer 21 and the second PVC layer 22 are blocked by the first glass fiber layer 11 At the same time, the distance of the printing layer 40 moving to the side where the second PVC layer 22 is located is reduced at the moment of melting. Therefore, when the first PVC layer 21 and the second PVC layer 22 are bonded together, the first The deformed volume of the PVC layer 21 becomes smaller, which can prevent the glass fiber grid print from appearing on the printing layer 40 . Simultaneously, the bonding area between the first PVC layer 21 and the second PVC layer 22 also increases, which increases the peeling strength of the PVC floor tiles on the other hand, and reduces the difficulty of laying, cutting, and chamfering of the PVC floor tiles. And the occurrence of peeling phenomenon during slotting.
In the manufacture method of PVC floor tile provided by the present invention, by making the first glass fiber layer 11 be embedded in the second PVC layer 22 in advance, then each layer is carried out heat-compression bonding, has reduced the first PVC layer 21 The deformation caused by the existence of the first glass fiber layer 11 reduces the influence of the glass fiber layer on the printing layer 40 and prevents glass fiber grid printing from appearing on the printing layer 40 .
In the present embodiment, b...
Abstract
The invention discloses a manufacturing method of a PVC floor tile, the PVC floor tile and manufacturing equipment. The method comprises the steps that a first glass fiber layer and a second PVC layerare provided, the first glass fiber layer is embedded into the second PVC layer and partially exposed out of the second PVC layer, and a composite layer of the first glass fiber layer and the secondPVC layer is formed; a wear-resistant layer, a printing layer and a first PVC layer are provided, the wear-resistant layer, the printing layer, the first PVC layer and the composite layer of the firstglass fiber layer and the second PVC layer are stacked together from top to bottom to enable the first glass fiber layer to be located on the side, facing the first PVC layer, of the second PVC layer; and the wear-resistant layer, the printing layer, the first PVC layer and the composite layer of the first glass fiber layer and the second PVC layer are bonded into a whole through a hot-pressing bonding process, so that the wear-resistant layer. According to the manufacturing method of the PVC floor tile, when the PVC floor tile is pressed, the influence of the glass fiber layer on the printing layer can be reduced, and glass fiber grid marks are prevented from appearing on the printing layer.
Application Domain
Lamination ancillary operationsSynthetic resin layered products +5
Technology Topic
Fiber layerWear resistant +6
Image
Examples
- Experimental program(1)
Example Embodiment
[0027] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, a detailed description is given below with reference to the accompanying drawings and preferred embodiments.
[0028] The invention provides a method for making PVC (Polyvinyl chloride; polyvinyl chloride) floor tiles, PVC floor tiles and production equipment. According to the method for making PVC floor tiles, the effect of glass fiber layer on the printing layer can be reduced when the PVC floor tiles are pressed. Affect, prevent glass fiber grid printing on the printing layer.
[0029] Figure 2a to Figure 2b It is a schematic diagram of the structure of each step in the manufacturing method of PVC floor tiles provided by the first embodiment of the present invention. Such as Figure 2a to Figure 2b As shown, in this embodiment, the method for manufacturing PVC floor tiles provided by the present invention includes the following steps:
[0030] A first glass fiber layer 11 and a second PVC layer 22 are provided. The first glass fiber layer 11 is embedded in the second PVC layer 22 and partially exposed outside the second PVC layer 22 to form the first glass fiber layer 11 and the second PVC layer. Composite layer of layer 22;
[0031] Provide the wear-resistant layer 30, the printing layer 40 and the first PVC layer 21, and the wear-resistant layer 30, the printing layer 40, the first PVC layer 21 and the composite layer of the first glass fiber layer 11 and the second PVC layer 22 from top to bottom Stack them together so that the first glass fiber layer 11 is located on the side of the second PVC layer 22 facing the first PVC layer 21;
[0032] The wear-resistant layer 30, the printing layer 40, the first PVC layer 21, and the composite layer of the first glass fiber layer 11 and the second PVC layer 22 are bonded together through a hot pressing bonding process to obtain a PVC floor tile.
[0033] In this embodiment, by embedding the first glass fiber layer 11 in the second PVC layer 22 in advance, the area of the first PVC layer 21 and the second PVC layer 22 blocked by the first glass fiber layer 11 is reduced, while reducing Reduce the distance when the printing layer 40 moves to the side where the second PVC layer 22 is located at the moment of melting. Therefore, when the first PVC layer 21 and the second PVC layer 22 are attached, the volume of the first PVC layer 21 deformed By being smaller, it is possible to prevent glass fiber grid marks from appearing on the printing layer 40. At the same time, the bonding area between the first PVC layer 21 and the second PVC layer 22 is also increased, which on the other hand increases the peel strength of PVC floor tiles and reduces the paving, cutting and chamfering of PVC floor tiles. And the occurrence of peeling phenomenon during slotting.
[0034] In this embodiment, the depth of the first glass fiber layer 11 embedded in the second PVC layer 22 is not less than 80% of the thickness of the first glass fiber layer 11 and not more than the thickness of the first glass fiber layer 11 Ninety-five percent, that is, when the first glass fiber layer 11 is embedded in the second PVC layer 22, at most only the grid intersections of the first glass fiber layer 11 are exposed outside the second PVC layer 22. During the hot pressing and bonding stage, the exposed height will no longer affect the printing layer 40 after being buffered by the first PVC layer 21.
[0035] Before embedding the first glass fiber layer 11 into the second PVC layer 22, in order to ensure the consistency of the thickness of the second PVC layer 22, the second PVC layer 22 also needs to go through a step of thickness setting. In this embodiment, as Figure 5 and Image 6 As shown, before embedding the first glass fiber layer 11 into the second PVC layer 22, the second PVC layer 22 needs to pass through a pair of calendering rollers 51, and the second PVC layer 22 is fixed by the calendering rollers 51 to ensure that the PVC floor tiles The exact size.
[0036] In this embodiment, it is necessary to embed the first glass fiber layer 11 into the second PVC layer 22 through a high temperature press process, such as Figure 5 and Image 6 As shown, specifically, the second PVC layer 22 and the first glass fiber layer 11 after the calendering roller 51 are fixed in thickness are passed through a pair of pressure rollers 52 together to align the first glass fiber layer 11 and the second PVC layer 22. For pressing, a heating device is also provided on the pressing roller 52 to heat the second PVC layer 22, and the second PVC layer 22 is heated and softened, so that the first glass fiber layer 11 is embedded in the second PVC under pressure. Layer 22. More specifically, in this embodiment, the heating temperature when inserting the first glass fiber layer 11 into the second PVC layer 22 is 160°C-190°C, the pressure bonding time is 1s-10s, and the two pressing rollers 52 The thickness between the two can be determined according to the specific parameters of the PVC floor tiles, so I will not repeat them here.
[0037] In order to facilitate the combination of the first glass fiber layer 11 and the second PVC layer 22, a first hanging roller 61 for suspending the first glass fiber layer 11 is provided on one side of the pressing roller 52, and the first glass fiber layer 11 is changed. The first guide roller 63 of the first glass fiber layer 11 is easy to tension in the feeding direction. The first glass fiber layer 11 is wound on the hanging roller, and after passing through the first guide 63 roller, it is sent between a pair of pressure rollers 52 together with the second PVC layer 22 for high temperature pressure.
[0038] After the first glass fiber layer 11 is embedded in the second PVC layer 22 through high temperature pressure, the composite layer of the first glass fiber layer 11 and the second PVC layer 22 needs to be cooled, such as Figure 5 and Image 6 As shown, in this embodiment, a cooling device 71, such as an air cooling device, can be provided to cool the above-mentioned composite layer.
[0039] After the composite layer is cooled, the first glass fiber layer 11 and the second PVC layer 22 are sent to the cutting mechanism 72 to cut the composite layer into suitable sizes according to the size requirements of the PVC floor tiles. That is, in this embodiment, the first glass fiber layer 11 and the second PVC layer 22 are cut to the required size after the composite layer of the first glass fiber layer 11 and the second PVC layer 22 is formed. This reduces a cutting process and reduces the manufacturing process of PVC floor tiles.
[0040] When the wear-resistant layer 30, the printing layer 40, the first PVC layer 21, and the composite layer of the first glass fiber layer 11 and the second PVC layer 22 are bonded together through the hot-press bonding process, it is necessary to go through a heating stage and In the cooling stage, in the heating stage, the temperature is 110℃-150℃, the pressure is controlled at 40-90Kg, and the heating time is 20-30min; in the cooling stage, the temperature is 15-40℃, and the pressure is controlled at 40-90Kg, The cooling time is 10-20min. Compared with the prior art, since the first glass fiber layer 11 has been embedded in the second PVC layer 22 in advance, it takes less time in the heating and cooling stages to bond the layers together, reducing the entire PVC The production time of the floor tiles improves the production efficiency.
[0041] image 3 It is a schematic diagram of the structure of PVC floor tiles in the second embodiment of the present invention, such as image 3 As shown, in the second embodiment of the present invention, in order to further improve the performance of PVC floor tiles, a third PVC layer 23 may be further provided on the side of the second PVC layer 22 away from the first PVC layer 21. A second glass fiber layer 12 is also provided between the PVC layer 23 and the second PVC layer 22. At this time, the first glass fiber layer 11 and the second glass fiber layer 12 can be embedded in the second PVC layer 22 from both sides of the second PVC layer 22 in advance, and then the third PVC layer 23 and the other layers can be heated. Press fit.
[0042] In this embodiment, as Image 6 As shown, a second hanging roller 62 and a second guide roller 64 are provided on the other side of the pressing roller 52 relative to the first hanging roller 61 and the first guide roller 63, and the first hanging roller and the guide roller The glass fiber layer 11 and the second glass fiber layer 12 and the second PVC layer 22 are fed between a pair of pressure rollers 52 to embed the first glass fiber layer 11 and the second glass fiber layer 12 into the second PVC layer 22, respectively. The composite layers of the first glass fiber layer 11, the second glass fiber layer 12, and the second PVC layer 22 are formed on both sides of the composite layer. After the composite layer is cut, it is combined with the wear-resistant layer 30, the printing layer 40, and the first PVC layer. The layer 21 and the third PVC layer 23 are bonded together by a hot-press bonding process.
[0043] Figure 4 It is a schematic diagram of the structure of PVC floor tiles in the third embodiment of the present invention, such as Figure 4 As shown, it is understandable that in the third embodiment, the second glass fiber layer 12 can be embedded in the third PVC layer 23, that is, the first glass fiber layer 11 and the second glass fiber layer 12 are respectively embedded with different PVC Inside the layer, and then glue the layers together.
[0044] Preferably, in the method provided by the present invention, the second PVC layer 22 may be an extruded rigid PVC board, that is, the plasticizer content is less than 10PHR (PHR: the plasticizing added per hundred parts of the polyvinyl chloride resin). The number of parts of the agent) PVC board. By selecting a hard PVC layer as the second PVC layer 22, each layer of the PVC floor tiles can be prevented from being deformed during the hot pressing and bonding stage, and the pattern of the printing layer 40 can be made clearer. With the existing manufacturing method, if the second PVC layer 22 is an extruded rigid PVC board, since the rigid PVC board is basically not deformed, in order to make the first PVC layer 21 and the second PVC layer 22 adhere to As a whole, the gaps between the grids in the first glass fiber layer 11 need to be filled by the deformation of the first PVC layer 21, which will deepen the deformation of the pattern in the printing layer 40. That is, the method for manufacturing PVC floor tiles provided by the present invention eliminates the defects when a rigid PVC board is used as the second PVC layer.
[0045] In the method for manufacturing PVC floor tiles provided by the present invention, the first glass fiber layer 11 is embedded in the second PVC layer 22 in advance, and then the layers are hot-pressed and bonded, reducing the first PVC layer 21 due to the first The deformation caused by the existence of the glass fiber layer 11 reduces the influence of the glass fiber layer on the printing layer 40 and prevents the glass fiber grid printing on the printing layer 40.
[0046] The present invention also provides a PVC floor tile manufactured by the above manufacturing method. The PVC floor tile includes a wear-resistant layer 30, a printing layer 40, a first PVC layer 21, a first glass fiber layer 11 and a second PVC layer 22, The wear-resistant layer 30, the printing layer 40, the first PVC layer 21, the first glass fiber layer 11 and the second PVC layer 22 are arranged in sequence from top to bottom, and the first glass fiber layer 11 is embedded in the second PVC layer 22. Specifically, the depth of the first glass fiber layer 11 embedded in the second PVC layer 22 is not less than 80% of the thickness of the first glass fiber layer 11 and not more than the thickness of the first glass fiber layer 11 ninety five.
[0047] Further, the PVC floor tile provided by the present invention further includes a second glass fiber layer 12 and a third PVC layer 23. The third PVC layer 23 is disposed on the side of the second PVC layer 22 away from the first PVC layer 21. The layer 12 is disposed between the second PVC layer 22 and the third PVC layer 23. In the second embodiment of the present invention, the first glass fiber layer 11 and the second glass fiber layer 12 are separated from two parts of the second PVC layer 22. Side embedded in the second PVC layer 22 (e.g. image 3 ). In the third embodiment of the present invention, the first PVC layer 21 is embedded in the second PVC layer 22, and the second glass fiber layer 12 is embedded in the third PVC layer 23 (such as Figure 4 ). Similarly, the depth of the second glass fiber layer 12 embedded in the second PVC layer 22 or the third PVC layer 23 is not less than 80% of the thickness of the first glass fiber layer 11 and not more than the first glass fiber layer. 11 Ninety-five percent of the thickness.
[0048] In this embodiment, the second PVC layer 22 is an extruded rigid PVC board with a plasticizer content of less than 10 PHR.
[0049] Figure 5 This is a schematic structural diagram of the PVC floor tile manufacturing equipment provided by the first embodiment of the present invention, such as Figure 5 As shown, the present invention also provides a manufacturing equipment based on the PVC floor tile manufacturing method provided by the present invention. The equipment includes a pair of pressing rollers 52, a first hanging roller 61, a first guide roller 63, a heating device, and a cooling device. And the cutting mechanism 72, the first glass fiber layer 11 is wound on the first hanging roller 61, after passing the first guide roller 62, and the second PVC layer 22 are sent between a pair of pressure rollers 52, in the pressure roller 52 is provided with a heating device. The first glass fiber layer 11 and the second PVC layer 22 form a composite layer of the first glass fiber layer 11 and the second PVC layer 22 in the pressing roller 52, and after the composite layer passes through the pressing roller 52 , Through the cooling device 71 into the cutting mechanism 72 for cutting.
[0050] The manufacturing equipment provided by the present invention further includes a pair of calender rolls 51 for calibrating the thickness of the second PVC layer 22.
[0051] Image 6 This is a schematic diagram of the structure of the PVC floor tile manufacturing equipment provided by the second embodiment of the present invention, such as Image 6 As shown, the equipment may also include a second hanging roller 62 and a second guide roller 64. The second hanging roller 62 and the second guide roller 64 are arranged on the pressing roller 52 relative to the first hanging roller 61 and the first guide. On the other side of the roller 63, the second glass fiber layer 12 is wound on the second hanging roller 62, and after passing through the second guide roller 64, it is sent together with the second PVC layer 22 between a pair of pressure rollers 52. The glass fiber layer 11 and the second glass fiber layer 12 are respectively located on both sides of the second PVC layer 22.
[0052] In summary, in the present invention, the first glass fiber layer 11 is embedded in the second PVC layer 22 in advance, so that the area of the first PVC layer 21 and the second PVC layer 22 blocked by the first glass fiber layer 11 is reduced. At the same time, it reduces the distance when the printing layer 40 moves to the side where the second PVC layer 22 is located at the moment of melting. Therefore, when the first PVC layer 21 is attached to the second PVC layer 22, the first PVC layer 21 The deformed volume becomes smaller, which can prevent the glass fiber grid from appearing on the printing layer 40. At the same time, the bonding area between the first PVC layer 21 and the second PVC layer 22 is also increased, which on the other hand increases the peel strength of PVC floor tiles and reduces the paving, cutting and chamfering of PVC floor tiles. And the occurrence of peeling phenomenon during slotting.
[0053] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the profession Those skilled in the art, without departing from the scope of the technical solution of the present invention, can make use of the technical content disclosed above to make slight changes or modifications into equivalent embodiments with equivalent changes, provided that the technical content of the present invention is not deviated from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments by technical essence still fall within the scope of the technical solutions of the present invention.
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