TWI704992B - Plastic floor tiles manufacturing method - Google Patents

Abstract

The present invention discloses a method for manufacturing a plastic floor tile. The plastic floor tile is composed of a base layer, a printing layer, and a fabric layer; wherein the generation of the fabric layer is integrated in the plastic floor tile manufacturing method, including raw material mixing and plasticization Extrusion, cold roll laminating and embossing, cooling, tempering, and punching forming, etc., so that the fabric layer of the generated plastic floor tile can form a tight fit with the purchased printing layer.

Description

Plastic floor tiles manufacturing method

The invention relates to the technical field related to the production of plastic floor tiles, in particular to a method for manufacturing plastic floor tiles.

According to, plastic floor tiles are mainly made of plastic materials, which can change the surface decoration according to customer needs, and can use material characteristics to form insulators, and have the advantages of low cost and DIY implementation, so they are widely used In a variety of occasions, such as small areas of ordinary households or factories and clean rooms that require cleanliness, the composition of conventional plastic floor tiles 90 is mainly shown in Figure 4, which is attached to a base layer 92 A printed layer 94 with decorative patterns is laminated, and a fabric layer 96 is laminated on the printed layer 94.

The manufacturing method is to take three raw materials, namely the base layer 92, the printing layer 94, and the fabric layer 96, which are rolled into a bundle on the market, and paste the three materials into one body through a roll laminating method. The surface printing layer adhesive 942 is used to achieve adhesion to the base layer 92, and the surface layer adhesive 962 provided on the bonding surface of the fabric layer 96 is used to achieve adhesion to the printing layer 94.

The new manufacturing process can already integrate the production of the base layer 92 without the need to purchase additional bundles of the base layer 92 (such as my country Patent Publication No. I604115 previously created by the applicant in this case), thereby avoiding waiting for materials, quality inspection, storage or batch The physical properties of different materials are different.

In addition, the conventional fabric layer 96 is made by the manufacturer to first attach a film-like transparent sheet 964 to the surface layer adhesive 962, and then wind it into a bundle and sell it to downstream manufacturers for use. It should be noted that the transparent sheet 964 is mostly made of PP or PE non-polar material, and the surface is too smooth and is not conducive to the coating and adhesion of the surface layer adhesive 962. To overcome this problem, manufacturers often use the "corona" process to solve the problem, by continuously applying high-voltage electric shocks to the surface of the transparent sheet 964 to be coated to oxidize and polarize the molecules on the surface of the transparent sheet 964, and use ion electric shock to corrode. The transparent sheet 964 has a predetermined surface to increase the adhesion ability of the transparent sheet 964 surface.

Although the "corona" process can achieve the purpose of increasing the adhesion of the transparent sheet 964; however, the "corona" process is costly and complex, and is often a problem in the industry.

Compared with the plastic floor tile manufacturing process, the use of the above-mentioned fabric layer 96 will cause problems such as waiting time for the manufacturing process and inventory pressure, so how can we abandon the expensive and time-consuming "corona" process and replace the originally purchased fabric layer 96 (Transparent sheet 964 and surface layer adhesive 962), the raw materials are integrated into the plastic floor tile manufacturing process, thereby reducing the cost of outsourcing products and inventory pressure, truly achieving a consistent design, which is a bottleneck that the industry desperately wants to overcome.

In view of the problems and deficiencies of the above-mentioned conventional techniques, the main purpose of the present invention is to provide a method for manufacturing plastic floor tiles, which reduces the deficiencies in the manufacturing process of plastic floor tiles through the innovation of the manufacturing process.

According to the above objective of the present invention, a method for manufacturing a plastic floor tile is proposed. The plastic floor tile is composed of a base layer, a printing layer, and a fabric layer; wherein the generation of the fabric layer is integrated in the plastic floor tile manufacturing method, including raw material mixing , Plasticizing extrusion, cold roll laminating and embossing, cooling, tempering, and punching forming, etc., so that the fabric layer of the generated plastic floor tile can form a tight fit with the purchased printing layer .

10: Plastic floor tiles

12: Fabric layer

40: Roller press

42: Low temperature wheel

422: embossing

44: Room temperature wheel

S1~S6: steps

<Learning>

90: plastic floor tiles

92: grassroots

94: Printing layer

942: printed layer adhesive

96: Fabric layer

962: Surface Adhesive

964: transparent film

Figure 1 is a schematic cross-sectional view of the plastic floor tile of the present invention.

Figure 2 is a schematic diagram of the manufacturing method of the plastic floor tiles of the present invention.

Figure 3 is a schematic diagram of the roller pressing cooperation of the present invention.

Figure 4 is a schematic cross-sectional view of conventional plastic floor tiles.

Hereinafter, please refer to related drawings to further describe the embodiments of the method for manufacturing the plastic floor tiles of the present invention. In order to facilitate the understanding of the embodiments of the present invention, the same components are described below with the same symbols.

Please refer to FIGS. 1 to 3, the plastic floor tile 10 of the present invention is composed of a base layer 92, a printing layer 94, and a transparent fabric layer 12. In the case of the structure, the printing layer 94 and the base layer 92 are known techniques, so I will not repeat them. Only the plastic floor tile manufacturing method that integrates the fabric layer 12 generation and bonding process includes the following steps:

Raw material mixing S1: Put the raw materials of a fabric layer 12 (not shown in the figure) into a mixer in proportion to mix and stir. The raw materials (PP or PE powder particles and auxiliary materials) of the fabric layer 12 are uniformly mixed through a mixer (not shown in the figure).

Plasticizing extrusion S2: Put the mixed fabric layer 12 raw materials into an extruder to make the fabric layer 12 raw materials get the plasticizing effect after the semi-gelatinized state, and then continuously output it into a "film-like" shape through the mold. A fabric layer 12 with a predetermined thickness. During implementation, the surface temperature of the coated fabric layer 12 is between 170° and 190° Celsius, and the surface of the fabric layer 12 is semi-melted.

Cold roll bonding and embossing S3: As shown in Figure 3, a printing layer 94 and a base layer 92 are combined with a roller press 40 and the fabric layer 12 to form a semi-finished plastic floor tile ( Not shown in the figure, the base layer 92 and the fabric layer 12 are separately provided on both ends of the printing layer 94). During the process, the surface of the fabric layer 12 is semi-melted, and the printing layer 94 is preheated to make the printing layer adhesive 942 of the printing layer 94 hot melt to form viscosity, and finally laminated by the roller pressing machine 40 All layers. The semi-melting surface of the fabric layer 12 (instead of the conventional surface layer adhesive 962) is used to improve the adhesion and firmness of the adhesion. When implemented, the printed layer 94 has various patterns.

The aforementioned roller press 40 includes a low temperature wheel 42 and a normal temperature wheel 44 arranged above and below; wherein, the low temperature wheel 42 abuts the fabric layer 12. The aforementioned low temperature wheel 42 has a cooling liquid flowing through (not shown in the figure) to maintain the surface temperature of the low temperature wheel 42 between 10° and 20° Celsius, and use low temperature to cool and set the semi-melting "film-like" fabric layer 12, and The surface of the low temperature wheel 42 has embossing 422 matching the pattern of the printing layer 94. Through the embossing 422, the low temperature wheel 42 rolls on the predetermined surface of the fabric layer 12 to form a predetermined pattern, so as to enhance the beauty of the fabric layer 12 and the anti-slip effect.

Cooling S4: Cool down the semi-finished plastic floor tile. Rolling conveyance by a cooling roller set (not shown in the figure), in conjunction with the spraying of coolant or cold air, reduces the temperature of the semi-finished plastic floor tiles, so that the changes in various layers of materials tend to be gentle and stable for subsequent processing .

Tempering treatment S5: Use a tempering device to temper the semi-finished plastic floor tiles. The tempering process overcomes the stress of the semi-finished plastic floor tile in the manufacturing process, so that the physical properties of the plastic floor tile are stabilized. During implementation, the semi-finished plastic floor tile can be trimmed and cut before the tempering treatment to make the width of the semi-finished plastic floor tile consistent.

Punching and forming S6: The semi-finished plastic floor tile is punched to form a finished plastic floor tile of the required size. Stack the semi-finished plastic floor tiles and cool them at room temperature to make their physical properties more stable, and then cut the semi-finished plastic floor tiles into finished plastic floor tiles of required size by punching.

The above description is only the preferred embodiments of the present invention. It is intended to clarify the characteristics of the present invention and is not intended to limit the scope of the embodiments of the present invention. Those skilled in the art make equal changes based on the present invention. , And changes well known to those skilled in the art should still fall within the scope of the present invention.

S1~S6‧‧‧Step

Claims (4)

A method for manufacturing plastic floor tiles includes: S1 puts a fabric layer raw materials into a mixer in proportion to mix and stir; S2 mixes the fabric layer raw materials into an extruder, so that the fabric layer raw materials get a semi-gelled state And its plasticizing effect, and continuously output through the mold of the extruder into a film-like and thick fabric layer, and the surface temperature is between 170° and 190° Celsius; S3 combines a printing layer and a base layer, Cooperate with a roller press to synchronously roll the fabric layer, and print a pattern on the preset end surface of the fabric layer to form a semi-finished plastic floor tile, wherein the roller press includes one of upper and lower configurations A low temperature wheel and a room temperature wheel, and the surface temperature of the low temperature wheel in contact with the fabric layer is between 10° and 20° Celsius, while the room temperature wheel is in contact with the base layer; S4 cools down the semi-finished plastic floor tile; S5 uses A tempering device performs tempering treatment on the semi-finished plastic floor tile; S6 punches the semi-finished plastic floor tile to form a finished plastic floor tile with a required size. According to the method for manufacturing plastic floor tiles described in item 1 of the scope of patent application, the surface of the low-temperature wheel has an embossing. For the plastic floor tile manufacturing method described in item 1 of the scope of patent application, the step S5 further includes a cutting step before the tempering treatment to make the width of the semi-finished plastic floor tile consistent. For the plastic floor tile manufacturing method described in item 1 of the scope of patent application, before step S6 is punched and formed, it further includes a stacking and cooling step. The semi-finished plastic floor tile is stacked indoors for cooling to make its physical properties more stable.

Images