TW201402917A - Method of making a plastic floor tile - Google Patents

Abstract

The present invention relates to a method of making a plastic floor tile which generally includes a bottom layer, a substrate, a printed adhesive tape and a top layer. The method includes the steps of (1) forming the bottom layer and the substrate by mixing materials, shaping and pressing; (2) laminating the bottom layer and the substrate together by a T-shaped die; (3) pressing the bottom layer and the substrate to form a compound layer with a predetermined thickness; (4) laminating the printed adhesive tape and the top layer to the compound layer by rollers to form a semi-product of the plastic floor tile; (5) cooling, trimming, tampering, and punching the semi-product; and (6) cutting the semi-product into pieces with desired size to form a final product of the plastic floor tile.

Description

Plastic floor tile manufacturing method

The invention relates to a manufacturing technology of a plastic floor tile, in particular to a method for manufacturing a plastic floor tile which can increase the thickness of the fabric layer and increase the pressure resistance and wear resistance of the product.

At present, plastic floor tiles are mainly made of plastic materials, and can provide different decorative patterns according to market demand. Plastic floor tiles have better insulation effect due to their material characteristics, and plastic floor tiles have the advantages of low cost and DIY application. It has the advantages of waterproof and no special maintenance, so it is widely used in flooring for various occasions.

For the structure of the plastic floor tiles, please refer to Figure 1 for a cross-sectional view of the plastic floor tiles. In the figure, a conventional plastic floor tile 1 is attached to a surface of a substrate 11 with a decorative printing tape 12, and a surface adhesive layer 13 is coated on the surface of the printing tape 12. The substrate 11 on the bottom surface of the plastic floor tile is mainly used to absorb the unevenness of the ground, so the material thereof is soft, and the surface adhesive layer 13 coated on the surface of the printing adhesive tape 13 is resistant to the pedaling and abrasion of personnel or articles, so The material with better pressure and wear resistance is the main material. Since the two are different in material or deformation amount, in order to avoid the phenomenon of distortion or peeling of the plastic tile 1 during use, the thickness of the surface adhesive layer 13 is limited, and the plastic cannot be improved. The thickness of the surface rubber layer 13 of the floor tile 1 causes a phenomenon of insufficient pressure resistance and wear resistance, which is a long-standing problem in the industry.

In order to solve this deficiency, the inventor of the present case has also proposed a solution. Please refer to Patent No. I292005 of China Patent Proposal. In the previous case, the plastic floor tile method of automatic operation has been proposed, and the pressure resistance of the plastic floor tile is improved by this method. Sex and wear resistance, and both production efficiency, reduce related production costs.

However, in response to the needs of the market, although the inventor of the present case proposed a solution in the previous case, the thickness of the surface adhesive layer was increased to 0.07~0.18mm, which is far superior to the plastic floor tiles of the prior art. However, the market demand and requirements are constantly improving. The thickness of the surface rubber layer of the previous case can not meet the high-end consumers. In order to make the thickness of the surface layer of the plastic floor tile more perfect, an innovative manufacturing method is proposed again.

In view of the above-mentioned problems of the prior art, one of the objects of the present invention is to provide a method for manufacturing a plastic floor tile. Thereby providing a plastic floor tile of at least 0.2mm~1mm high-thickness fabric layer, so that the finished product of the plastic-plastic floor tile has a high-thickness fabric layer, providing the pressure-resistant and wear-resistant benefits and conforming to the conventional plastic-plastic floor tiles. High-end market demanders. Also, because the thickness of the fabric layer is increased, the original process method cannot meet the demand, and thus a higher-order process method is derived, so as to meet the actual production demand.

According to the purpose of the present invention, a method for manufacturing a plastic floor tile is provided, the steps of which include:

Raw material compounding: the raw materials of the bottom layer are adjusted according to the ratio. After that, it is put into a mixer and mixed and stirred, so that the raw materials of the bottom layer can be completely and uniformly mixed. After the raw materials of the substrate are adjusted according to the ratio, the mixture is put into another mixer for mixing and stirring, so that the raw materials of the substrate can be completely and uniformly mixed to maintain the stability of the product.

Plasticization: The raw material of the bottom layer layer that has been compounded is placed in a 10,000-horsepower machine to obtain an initial plasticizing effect on the raw material of the bottom layer. Further, the substrate raw material obtained by mixing the substrates is placed in a high-speed mixer and stirred to obtain a semi-gelled state of the raw material of the substrate.

Extrusion: The initial plasticized raw material after the plasticization step of the bottom layer is transported by the 10,000 horsepower machine to the corresponding extruder, so that the raw material of the bottom layer layer can be completely plasticized, and the semi-adhesive of the substrate is plasticized. The raw material is conveyed by a high-speed mixer to another extruder to make the substrate material fully plasticized.

T-die extrusion: the bottom layer and the substrate are introduced into the T-die simultaneously, and the bottom layer and the substrate are semi-solvent by high temperature, and the opposite contact surface of the bottom layer and the substrate is completely dissolved.

The roll is pressed out: the composite bottom layer which is extruded through the T-die and the material piece of the substrate are rolled to a predetermined thickness.

The first preheating: the fabric layer is wound around the plurality of heating wheels, and the fabric layer is gradually preheated to the first preset temperature by the heating wheel.

The second preheating: the fabric layer after the first preheating is preheated to the second preset temperature by the infrared high frequency heating device.

Roll press bonding: the second preheated fabric layer is coated on a printed layer, and the printed layer is coated on the top surface of the composite bottom layer of the rolled sheet relative to the fabric layer. The fabric layer, the printed layer and the composite bottom layer are rolled by a roller with a heat source, except that the fabric layer is once again preheated to a third preset temperature and the composite bottom layer is preheated. The fabric layer, the printed layer and the composite bottom layer are rolled and bonded. The embossing wheel is arranged on the roller of the corresponding fabric layer, and the fabric layer is embossed at the same time as the roller layer is pressed to cover the fabric layer, the printing layer and the composite bottom layer, so as to form a plastic floor tile semi-finished product.

The first cooling, the first cooling and cooling of the semi-finished products of the plastic floor tile by the cooling liquid, the changes of the material of each layer tend to be moderate and stable, and the subsequent processing process is facilitated.

In the second cooling, the second cooling and cooling of the semi-finished products of the plastic floor tile by the cooling liquid is used to make the changes of the materials of the layers tend to be moderate and stable, and the subsequent processing process is facilitated.

The trimming treatment will be carried out to trim the semi-finished plastic floor tiles to remove the excess residue from the side of the semi-finished plastic floor tiles.

The tempering treatment, after completing the above-mentioned process steps, further tempering the semi-finished plastic floor tiles by using the tempering device to overcome the stress in the process, to stabilize the physical properties of the plastic floor tiles, and to improve the product quality requirements.

After die-cutting, the semi-finished plastic bricks after the tempering treatment step are first stacked at room temperature and cooled to room temperature to make the physical properties more stable. After that, the semi-finished products of the plastic-plastic floor tiles are die-cut into the size specifications of the finished products required by the customers.

Thereby, the plastic floor tile of the invention has the non-deformable and high-strength fabric layer of the plastic-plastic floor tile, and has the advantages of more pressure resistance and wear resistance than the conventional plastic-plastic floor tile, in addition to meeting the requirements of the high-end market, The reduction process and the avoidance of poor adhesion of the fabric layer, the printed layer and the composite underlayer.

According to the above, the method for manufacturing the plastic floor tile of the present invention has at least the following advantages:

1. The manufacturing method of the plastic floor tile of the invention can further reduce the production process and reduce the production cost.

2. The manufacturing method of the plastic floor tile of the invention can further increase the thickness of the fabric layer to at least 0.2 mm to 1 mm, which is far superior to 0.07 mm of the conventional plastic floor tile.

3. The method for manufacturing a plastic floor tile according to the present invention, wherein the fabric layer, the printed layer and the composite bottom layer are more closely bonded by a plurality of stepwise preheating.

4. The method for manufacturing a plastic floor tile according to the present invention, which simultaneously embosses the fabric layer by rolling and greatly reduces the production process and production time.

Hereinafter, an embodiment of a method of manufacturing a plastic floor tile of the present invention will be further described. For the sake of understanding of the embodiments of the present invention, the same components are denoted by the same reference numerals.

2 and 5, FIG. 2 is a schematic flow chart of a method for manufacturing a plastic floor tile according to the present invention, and FIG. 3 is a schematic view showing a T-die extrusion embodiment of the method for manufacturing the plastic floor tile of the present invention, and FIG. It is a schematic diagram of an embodiment of a method for manufacturing a plastic floor tile of the present invention, and FIG. 5 is a schematic cross-sectional view of a finished method for manufacturing a plastic floor tile of the present invention. In the figure, the method for manufacturing the plastic floor tile of the present invention comprises at least:

S111 and S211: The raw materials are mixed, and the raw materials of the bottom layer 211 are adjusted in proportion, and then mixed and stirred in a mixer to completely and uniformly mix the raw materials of the bottom layer 211. After the raw materials of the substrate 212 are adjusted in proportion, the mixture is placed in another mixer to be mixed and stirred, so that the raw materials of the substrate 212 can be completely and uniformly mixed to maintain the stability of the product.

S112 and S212: plasticizing, the raw material of the bottom layer 211 which has been compounded is placed in a 10,000-horsepower machine, and the raw material of the bottom layer 211 is initially plasticized. Further, the substrate material obtained by compounding the substrate 212 is placed in a high-speed mixer and stirred to make the base. The material of the material 212 has the effect of a semi-gelatinized state.

S113, S213: Extrusion, the initial plasticizing raw material after the step of step S112 is plasticized and sent to the corresponding extruder by the 10,000 horsepower machine to make the raw material of the bottom layer 211 reach the complete plasticizing effect, and then the substrate is further processed. The semi-gelatinous raw material of the step 212 of the plasticizing step S212 is transported by a high-speed mixer to another extruder to force the raw material of the substrate 212 to achieve a complete plasticizing effect.

S3: The T-type mold is extruded, and the bottom layer 211 is introduced into the T-die simultaneously with the substrate 212. At this time, the bottom surface layer 211 and the substrate 212 are caused by the high temperature of the opposite contact surface of the bottom layer 211 and the substrate 212. It is semi-soluble, so that when it is extruded by the T-die, the opposite contact surface of the bottom layer 211 and the substrate 212 can be completely dissolved, so that the bottom layer 211 and the substrate 212 do not peel off during use.

S4: Rolling out the sheet, and the material sheet of the composite bottom layer 211 and the substrate 212 extruded through the T-die is adjusted by rolling to form a composite bottom layer 21 of a predetermined thickness.

S5: The first preheating, the fabric layer 23 is wound around the plurality of heating wheels As the first preheating of the first time, the fabric layer 23 is gradually preheated by the heating wheel 31 to a first preset temperature of at least 100 degrees Celsius.

S6: the second preheating, the fabric layer 23 after the first preheating is further preheated by the infrared high frequency heating device 32, and the fabric layer 23 is preheated again to at least 110 degrees Celsius. The second preset temperature.

S7: roll bonding, the second pre-heated fabric layer 23 is coated on a printing layer 24, and the printing layer 24 is coated on the T-shaped mold with respect to the fabric layer 23 The top surface (bottom layer 211) of the bottom layer 21. The three are rolled by the heat roller 105, 332, and the fabric layer 23 is once again preheated to a third preset temperature of at least 130 degrees, and the composite bottom layer 21 is preheated (print layer 24, without preheating to avoid deformation, the fabric layer 23, the printed layer 24, and the composite bottom layer 21 are roll-bonded. And the embossing wheel 331 corresponding to the fabric layer 23 is provided with an embossing 3311, and the fabric layer 23 is embossed to form a lining at the same time as the roll bonding fabric layer 23, the printing layer 24 and the composite bottom layer 21. Semi-finished plastic floor tiles.

S8: The first cooling, the first cooling and cooling of the plastic floor tile by the cooling liquid is applied, so that the change of the material of each layer tends to be moderate and stable, so as to carry out the subsequent processing. The coolant temperature cannot be higher than 30 degrees Celsius.

S9: The second cooling, the second cooling of the plastic floor tile by the cooling liquid is applied to the second cooling and cooling, so that the change of the material of each layer tends to be moderated and stabilized, so as to carry out the subsequent processing. The coolant temperature cannot be higher than 15 degrees Celsius.

S10: Trimming treatment, trimming the semi-finished plastic floor tiles with trimming materials to remove excess residue from the side of the semi-finished plastic floor tiles.

S11: tempering treatment, after completing the foregoing process steps, further tempering the semi-finished plastic floor tiles by using a tempering device to overcome the stress of the semi-finished plastic tile in the process, so that the physical properties of the plastic floor tiles are stabilized and the product quality is improved. .

S12: After die-cutting, the semi-finished plastic bricks after tempering are first stacked at room temperature and cooled to room temperature to make the physical properties more stable. Then, the semi-finished products of the plastic-plastic floor tiles are cut into finished product sizes. specification.

By the above steps, the high-thickness fabric layer 23 is gradually heated to avoid coking, and when it reaches the dissolving temperature, the printing layer 24 and the composite bottom layer 21 are bonded by roll pressing, and the surface rubber layer of the plastic-plastic floor tile is completely solved ( The lack of thickness of the fabric layer, or the problem that the plastic floor tiles are easily distorted, and the first and second cooling and tempering treatments, so that the semi-finished plastic floor tiles are tempered to overcome the product in the process. Stress, to avoid the problem of distortion caused by plastic floor tiles affected by the environment, to improve product stability. In this way, under the same manufacturing capacity and efficiency, the thickness of the surface adhesive layer (fabric layer) can be further increased, and the plastic floor tile can be improved in pressure resistance and wear resistance, effectively extending the service life and increasing the production economy. Benefits.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧Plastic floor tiles

11‧‧‧Substrate

12‧‧‧Printed tape

13‧‧‧Surface adhesive layer

21‧‧‧Composite bottom layer

211‧‧‧ bottom layer

212‧‧‧Substrate

23‧‧‧ fabric layer

24‧‧‧Printing layer

31‧‧‧heating wheel

32‧‧‧Infrared high frequency heating device

331, 332‧‧‧ Roller wheel

3311‧‧‧ embossing

S3~S12‧‧‧Steps

S111~S113‧‧‧Steps

S211~S213‧‧‧Steps

Figure 1 Schematic diagram of a conventional plastic floor tile.

Fig. 2 is a schematic flow chart showing the manufacturing method of the plastic floor tile of the present invention.

Fig. 3 is a schematic view showing a T-die extrusion embodiment of the method for producing a plastic floor tile according to the present invention.

Fig. 4 is a schematic view showing an embodiment of a method for producing a plastic floor tile according to the present invention.

Fig. 5 is a schematic cross-sectional view showing the finished method of the method for manufacturing the plastic floor tile of the present invention.

23‧‧‧ fabric layer

24‧‧‧Printing layer

S3~S12‧‧‧Steps

S111~S113‧‧‧Steps

S211~S213‧‧‧Steps

Claims (8)

The invention relates to a method for manufacturing a plastic floor tile, which comprises the following steps, wherein: (a) mixing of raw materials: after adjusting the raw materials of a bottom layer, the mixture is put into a mixer for mixing and stirring, and the raw materials of a substrate are proportioned. After the adjustment is completed, the mixture is put into another mixer for mixing and stirring; (b) plasticizing: the raw material of the bottom layer which is compounded is placed in a 10,000-horsepower machine, so that the raw material of the bottom layer is initially plasticized, and The raw material of the substrate is mixed and stirred in a high-speed mixer to obtain a semi-gelatinized state of the raw material of the substrate; (c) the extrusion: the initial plasticized raw material of the bottom layer is from the 10,000-horsepower machine The material is sent to a corresponding one of the extruders for extrusion, and the semi-gelatinous material which is plasticized by the substrate is transported from the high-speed mixer to another extruder, so that the bottom layer and the raw material of the substrate are completely plasticized. (d) T-die extrusion: the bottom layer is introduced into the T-die simultaneously with the substrate, and the bottom layer and the base are caused by high temperature due to the opposite contact surface of the bottom layer and the substrate. The material is semi-soluble, so After the T-die extrusion, allows the contact surface relative to the bottom surface of the substrate layer and integrally completely dissolved, so that the bottom surface of the base layer and the peeling phenomenon will not occur during use; (e) Rolling out the sheet: a sheet of material of a composite bottom layer and a substrate extruded through a T-die, adjusted to a predetermined thickness by rolling; (f) First preheating: winding a fabric layer Carrying on the plurality of heating wheels as the first preheating, the fabric layer is gradually preheated to the first preset temperature by each of the heating wheels; (g) the second preheating: the first preheating Thereafter, the fabric layer is preheated to a second preset temperature by using a heating device as a second preheating; (h) roll pressing: the second preheating The fabric layer is coated on a printed layer, and the printed layer is coated on the top surface of the composite bottom layer extruded by the T-die relative to the covering layer of the fabric layer, and the three layers are covered by a plurality of rollers having a heat source Pressing the roller, in addition to preheating the fabric layer to a third predetermined temperature and preheating the composite bottom layer, and laminating the fabric layer, the printing layer and the composite bottom layer Forming a plastic floor tile semi-finished product; (i) first cooling: cooling the semi-finished product of the plastic floor tile by cooling liquid for the first time to cool the material of each layer It tends to ease and stabilize, and facilitates the subsequent processing; (j) The second cooling: the second cooling and cooling of the semi-finished product of the plastic floor tile by the cooling liquid, so that the changes of the materials of each layer tend to be moderate and stable, and convenient for subsequent Processing process; (k) tempering treatment: after the second cooling step, the semi-finished product of the plastic floor tile is semi-finished by the tempering device The product is tempered to overcome the stress of the plastic floor tile semi-finished product in the process; (l) die-cutting: the plastic floor tile semi-finished product after the tempering treatment step is stacked at room temperature and cooled to room temperature to make the physical property more After stabilization, the plastic-plastic floor tile semi-finished product is die-cut into the required finished product size specifications; thereby forming a plastic floor tile with a high-thickness fabric layer, and a plastic floor tile with pressure resistance, wear resistance and high production efficiency. . The method for manufacturing a plastic floor tile according to claim 1, wherein the first preset temperature is at least 100 degrees Celsius. The method for manufacturing a plastic floor tile according to claim 1, wherein the second preset temperature is at least 110 degrees Celsius. The method for manufacturing a plastic floor tile according to claim 1, wherein the third preset temperature is at least 130 degrees Celsius. The method for manufacturing a plastic floor tile according to claim 1, wherein the roller pressing wheel has an embossing layer corresponding to the fabric layer, and the fabric layer, the printing layer and the composite bottom layer are simultaneously pressed and rolled, and the fabric is also applied to the fabric. The layers are embossed. The method for manufacturing a plastic floor tile according to claim 1, wherein the heating device is an infrared high frequency heating device. The method for manufacturing a plastic floor tile according to claim 1, wherein the temperature of the coolant in the first cooling step is low. At 30 degrees Celsius. The method for manufacturing a plastic floor tile according to claim 1, wherein the temperature of the coolant in the second cooling step is lower than 15 degrees Celsius.