CN102733581B - Production method of cyclohexanediol copolyester, floor tile using the cyclohexanediol copolyester, and production method thereof - Google Patents

Abstract

The floor tile comprises a protective layer, a printing layer and a filling layer, wherein the protective layer, the printing layer and the filling layer are sequentially attached to each other, and the protective layer, the printing layer and the filling layer are respectively made of cyclohexanediol copolyester (PETG). Therefore, the purpose of meeting the requirement of environmental protection, being applicable to various environments, and avoiding the problems of degumming, infirm adhesion and the like can be achieved by taking the cyclohexanediol copolyester as the material of the floor tile. The manufacturing method of the floor tile comprises the following steps: providing a protective layer, a printing layer and a filling layer, wherein the protective layer, the printing layer and the filling layer are respectively made of cyclohexanediol copolyester; adhering the protective layer, the printing layer and the filling layer to form a semi-finished floor tile product; and releasing the stress to the semi-finished floor tile and forming the floor tile.

Description

Production method of cyclohexanediol copolyester, floor tile using the cyclohexanediol copolyester, and production method thereof

technical field

The present invention relates to a floor tile and its manufacturing method, especially to a floor tile and its manufacturing method that can meet the requirements of environmental protection and can be applied in various environments, and can avoid problems such as degumming and poor sticking. The present invention also relates to a A production method of cyclohexanediol copolyester.

Background technique

In home decoration, people often choose to use different floor materials for laying the ground. Nowadays, due to the diversification of floor materials and the demand for environmental protection, people must choose to use more environmentally friendly floor decoration materials.

Traditionally, polyvinylchloride (PVC) plastic floor tiles are the main ones. The reason is that PVC plastic floor tiles are cheap, easy to process, and easy to obtain, so they have the largest share in plastic floor tiles.

However, PVC plastic floor tiles will produce hydrogen chloride (HCl) after recycling, burning or decomposition, which will not only cause acid rain, but also cause soil acidification, and the plasticizer used in it is also a hormone disrupting substance, so it has been criticized by some organizations ( For example, the EU REACH, Registration Evaluation and Authorization of Chemicals) are concerned, and because these chemicals have a great impact on the environment and biology, it is believed that they will be further restricted in the future.

Furthermore, nowadays, non-PVC plastic floor tiles, such as polypropylene (PP), polyethylene (PE), silanes, etc., often have degumming and sticking when they are laid on the ground due to the surface tension of their molecules. Insecure and other problems arise.

Therefore, how to invent a floor tile and its manufacturing method, in order to meet the requirements of environmental protection and be applicable to various environments, and avoid problems such as degumming and sticking, will be actively disclosed by the present invention. .

Contents of the invention

In view of the shortcomings of the above-mentioned known floor tiles, the inventor feels that it is not perfect, so he exhausts his mind to study and overcome it, and then develops a floor tile and its manufacturing method based on his accumulated experience in this industry for many years. It can meet the requirements of environmental protection and can be used in various environments, and can avoid problems such as degumming and sticking.

The main purpose of the present invention is to provide a kind of floor tile and its manufacture method, and it is by copolyester with cyclohexanediol (PETG, polyethylene terephthalate-1,4-cyclohexanedimethanol ester ) is the material of floor tiles, which can meet the requirements of environmental protection and can be used in various environments, and can avoid problems such as degumming and sticking.

In order to achieve the above object, the floor tile of the present invention comprises a protective layer, a printing layer and a filling layer, wherein the protective layer, the printing layer and the filling layer are bonded to each other in sequence, and the protective layer, the printing layer and the filling layer are respectively composed of cyclohexanediol Made of copolyester (PETG).

Therefore, by using cyclohexanediol copolyester (PETG) as the material of the floor tiles, it can meet the requirements of environmental protection and can be applied in various environments, and can avoid problems such as degumming and poor adhesion. In addition, by using PETG as the raw material of the environmentally friendly base material, it is more friendly to the environment, and because it can be reused, it also reduces the loss of resources.

In addition, the manufacturing method of floor tile of the present invention comprises the following steps:

A protective layer, a printing layer and a filling layer are provided, and the protective layer, the printing layer and the filling layer are respectively made of cyclohexanediol copolyester (PETG);

Applying protective, printed and infill layers to form semi-finished floor tiles; and

The above-mentioned semi-finished floor tiles are stress relieved and formed into floor tiles.

In addition, the production method of cyclohexanediol copolyester of the present invention comprises the following steps:

mixing cyclohexanediol copolyester colloids and at least one additional raw material to form a mixed raw material;

kneading the mixed raw material and forming a gelled raw material;

mixing the gelatinized raw material;

The gelled raw material after filtering and kneading;

Secondary mixing and filtering of the gelled raw material to form a rubber mass;

calendering the dough and forming a plaster;

embossing the tape;

cool the plaster; and

Cut out the tape.

Description of drawings

Fig. 1 is an exploded view of a preferred embodiment of the present invention.

Fig. 2 is a perspective view of a preferred embodiment of the present invention.

Fig. 3 is a manufacturing flow chart of a preferred embodiment of the present invention.

Fig. 4 is a cut-out schematic diagram of a preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of a hydraulic bonding device in a preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of a stress relief groove in a preferred embodiment of the present invention.

Fig. 7 is the schematic diagram of the production process of the PETG adhesive film of preferred embodiment of the present invention.

Fig. 8 is a flow chart of the PETG film production process of the preferred embodiment of the present invention.

1: floor tiles 11: protective layer

12: Printing layer 121: Printing pattern

13: Filling layer 2: Hydraulic bonding device

3: Stress relief groove 31: Conveyor belt

32: Hot water 41: Mixer

42: Mixing machine 43: Rolling mill

44: Filtration extruder 45: Tape machine

46: Embossing equipment 47: Cooling wheel set

48: slicer 49: rolling mill

h1: thickness h2: thickness

h3: Thickness S1～S5: Steps

S11～S19: steps

Detailed ways

In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail by means of the following specific embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 2 at the same time, wherein FIG. 1 is an exploded view of a preferred embodiment of the present invention, and FIG. 2 is a perspective view of a preferred embodiment of the present invention.

Shown in the figure is a floor tile 1, and this floor tile 1 includes a protective layer 11, a printing layer 12 and a filling layer 13, wherein the protective layer 11, the printing layer 12 and the filling layer 13 are bonded to each other in sequence, and the protective layer 11, The printing layer 12 and the filling layer 13 are respectively made of cyclohexanediol copolyester (PETG).

The so-called PETG is made by using 1,4-cyclohexanedimethanol (CHDM) to replace part of ethylene glycol and copolymerize it with terephthalic acid. Its products are highly transparent, have excellent impact resistance, have high stiffness, hardness and good toughness, and maintain proper toughness even at low temperatures. At present, they have been gradually used in food, pharmaceutical and cosmetic packaging and other fields. PETG can be applied to extrusion, injection molding, blow molding and other processing methods, and low-cost calcium carbonate can be added to reduce the overall cost and change PETG's high rigidity, high hardness and viscoelastic properties at room temperature.

Therefore, by using cyclohexanediol copolyester (PETG) as the material of the floor tile 1 , it can meet the requirements of environmental protection and can be applied in various environments, and can avoid problems such as degumming and poor adhesion. In addition, by using PETG as the raw material of the environmentally friendly base material, it is more friendly to the environment, and because it can be reused, it also reduces the loss of resources.

In detail, the above-mentioned floor tile 1 made of cyclohexanediol copolyester (PETG) can be applied to various environments such as commercial companies and houses, and can replace traditional PVC plastic floor tiles; Alcohol copolyester (PETG) is the floor tile 1 of material because of very high compatibility with PVC, so the PVC industry circle can directly use above-mentioned floor tile 1 to replace traditional PVC plastic floor tile at present, and does not need to increase processing technology again; Floor tiles made of cyclohexanediol copolyester (PETG) do not need to pay special attention to surface tension issues like traditional PP, PE, and silane products, so they can avoid problems such as degumming or poor adhesion during use, that is, The floor tile 1 of the present invention can directly use PVC plastic floor tile glue to bond with the ground. The PVC plastic floor tile glue currently used in the market can be directly used on the floor tile 1 of the present invention, and it can have a firm bonding effect without special treatment. .

The above-mentioned protective layer 11 can be endowed with wear-resistant properties to provide the wear-resistant effect of the floor tile 1, prevent the printing layer 12 from being damaged, and increase the service life. As shown in Figure 1, this protective layer 11 has a thickness h1, and this thickness h1 Between 0.1 mm and 2.0 mm, and in actual use, the protective layer 11 can be a pure transparent PETG film, or can add coloring material to impart color and increase texture.

The above-mentioned printing layer 12 is mainly a PETG film and can be printed with various printing patterns 121 on the surface, so that the floor tile 1 can imitate natural materials such as stone and wood, and add texture. As shown in Figure 1, the printing layer 12 has a thickness h2, and the thickness h2 is between 0.09mm and 0.15mm.

The main components of the above-mentioned filling layer 13 can include a large amount of filling substances, such as calcium carbonate, PETG, benzoic acid esters and modifying agents are fully mixed to make this filling layer 13, so as to change the original high hardness of PETG and make the In addition to its softness at normal temperature, it can also increase the rigidity or flexibility of the integral floor tile 1 and reduce the cost. As shown in FIG. 1 , the filling layer 13 has a thickness h3, and the thickness h3 is between 0.7 mm and 4.0 mm. In actual use, multi-layer bonding can be done depending on the situation.

Please refer to FIG. 1 to FIG. 3 at the same time, wherein FIG. 3 is a manufacturing flow chart of a preferred embodiment of the present invention.

As can be seen from the drawings, the manufacturing method of the above-mentioned floor tile 1 includes the following steps:

First, the protective layer 11, the printing layer 12 and the filling layer 13 are provided, and the protective layer 11, the printing layer 12 and the filling layer 13 are made of cyclohexanediol copolyester (PETG) respectively (S2); The layer 11, the printing layer 12 and the filling layer 13 form a semi-finished floor tile (S3); finally, the stress is released from the semi-finished floor tile to form the above-mentioned floor tile 1 (S4).

Please refer to FIG. 1 to FIG. 4 at the same time, and FIG. 4 is a cut-out diagram of a preferred embodiment of the present invention.

In actual use, the following steps can be carried out before the step of providing the protective layer 11, the printing layer 12 and the filling layer 13: respectively cutting the protective layer 11, the printing layer 12 and the filling layer 13 to a required size (S1), as shown in FIG. 4, that is, the protective layer 11, the printing layer 12 and the filling layer 13 can be cut to the size required by people as required.

In actual use, the following steps can be carried out after the step of stress releasing the semi-finished floor tiles: cutting the floor tiles 1 to an appropriate size (S5), that is to say, the floor tiles 1 can be cut to the needs when laying the ground in people's homes as required The appropriate size (the way can be shown in Figure 4).

Please refer to Figures 1 to 6 at the same time, in which Figure 5 is a schematic diagram of a hydraulic lamination device in a preferred embodiment of the present invention, and Figure 6 is a schematic diagram of a stress relief groove in a preferred embodiment of the present invention.

As shown in Figure 5, when laminating the protective layer 11, the printing layer 12 and the filling layer 13, it is carried out with a hydraulic lamination device 2, and the material characteristics of the protective layer 11, the printing layer 12 and the filling layer 13 can be used. Set the temperature, pressure, time, etc. for hydraulic lamination.

As shown in Figure 6, when the stress releases the semi-finished floor tiles, a stress release groove 3 is used to carry out the process. In practice, the aforementioned stress relief tank 3 can be a semi-open container with a continuous stainless steel conveyor belt 31 inside and hot water 32 inside. The temperature of the hot water 32 can be adjusted according to the protective layer 11, printing layer 12 and the material properties of the filling layer 13 are adjusted in a temperature range, such as 80°C to 100°C, the water level of the hot water 32 must be higher than the conveyor belt by 15 cm, and the semi-finished floor tiles after hydraulic bonding are placed on the conveyor belt 31 On the starting end, the conveyor belt 31 will carry the semi-finished floor tiles and immerse them in the hot water 32, and then come out of the hot water 32 from the other end, and then stack them after wiping to complete. The principle is that all thermoplastics (polymers) are molded. Accompanied by some residual stress, the residual stress will not disappear even after hydraulic lamination. If there is residual stress in the material, it will have a great adverse effect on the size of the finished product. The above stress relief groove 3 uses hot water 32 as the medium , after the actual test, the PETG material will not react with the hot water 3, and the hot water 32 will not enter the pores of the PETG material, so the semi-finished floor tiles after oil pressure lamination are heated to near the transfer temperature of the PETG material , to release residual stress and achieve dimensional stability.

Please refer to FIG. 7 and FIG. 8 at the same time. FIG. 7 is a schematic diagram of the production process of the PETG film in a preferred embodiment of the present invention, and FIG. 8 is a flow chart of the production process of the PETG film in a preferred embodiment of the present invention.

In addition, the above-mentioned protective layer 11, printing layer 12 and filling layer 13 (as shown in FIG. 1 ) are respectively made of cyclohexanediol copolyester (PETG), and the PETG film production process is as follows:

Mixing: with the mixer 41 with variable speed and stirring blades, using its shear force and friction force, a uniform vortex is generated, so that the PETG colloids and at least one additional raw material (such as benzoic acid esters, calcium carbonate, etc.) can be mixed Thoroughly disperse and mix, and form a mixed raw material (S11).

Kneading: Knead the above-mentioned mixed raw materials with the kneader 42 having a pressurized vertical top to form a gelled raw material (S12). The chamber of the kneader 42 contains two rotors (Rotor) each having a raised wing to rotate in opposite directions. Due to the strong shear effect between the shaft and the chamber wall and between the rotor and the rotor, heat is generated, and the kneading is carried out, just like kneading dough from flour. PETG molecules become soft due to heat and external force, and if another softener is used, it can also interact with PETG molecules and mix with other raw materials to form a viscous and elastic colloid.

Kneading: Mainly use the roll mill 43 as a kneading machine to knead the above-mentioned gelatinized raw materials (S13). Roller 43 is made up of two rollers of variable speed and heating. By continuously heating the raw materials and cooperating with manual crosscut (Crosscut), a better degree of gelatinization can be achieved. In addition, the speed difference between the two wheels creates a shearing effect on the mixture, and the heating of the front wheel is slightly higher than that of the rear wheel, so that the raw materials can be transported in a specific direction.

Filtration: The above-mentioned kneaded gelatinized raw material is mainly filtered by the filter extruder 44 (S14). The discharge part is equipped with a filter barbed wire, which has three characteristics:

Prepare materials with proper temperature and uniform gelation for feeding into the adhesive tape machine.

Block hard blocks such as stones or iron sheets to protect the adhesive tape machine so that the rollers will not be injured.

Maintain the uniform temperature of the plastic material, which acts as heat preservation rather than heating.

Secondary kneading: use the roll mill 49 as a kneading machine to knead the above-mentioned filtered gelatinized raw materials to form a rubber mass (S15).

Calendering: mainly use the tape machine 45 to calender the (polymer) rubber material into a tape (film) (S16). The rubber ball enters from the opening (Nip) between the first wheel and the second wheel of the tape machine 45 and is squeezed into a sheet, wraps around the second wheel and enters the opening between the second wheel and the third wheel, and leaves Then it is wrapped around the third wheel and then enters the opening between the third and fourth wheels. When the rubber mass enters an opening between the two wheels, it will form an accumulation behind it, which is the accumulation of material behind the wheel. At the same time, the accumulated material behind the wheel rotates with the rotation of the roller, and it is possible to complete the continuous rolling of the accumulated material (Bank) after three wheels.

Embossing equipment: Utilize the embossing equipment 46 to press the required pattern on the surface of the adhesive tape in a plastic state (S17). There is a water pipe in the axle, and the water temperature can be set according to the needs, and the temperature can be lowered while embossing to fix the embossing.

Cooling wheel set: the cooling wheel set 47 includes eight to twelve cooling wheels, through which cooling water and frozen water are passed, and the high-temperature adhesive tape is gradually cooled to normal temperature by heat exchange (S18). The temperature of the cooling wheel is distributed from front to back from high to low. Flow from front to back in the same direction as the tape, and the temperature will gradually decrease from high to high.

Cutting: the adhesive tape enters the slicer 48 slices after cutting off the side material, to be cut into the required size (S19). In addition to cutting, the slicer also has the function of calculating the total length.

By using cyclohexanediol copolyester (PETG) as the floor tile material, the present invention can meet the requirements of environmental protection and can be applied to various environments, and can avoid problems such as degumming and poor adhesion; In terms of availability, the products derived from the present invention should fully meet the needs of the current market.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only for describing the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.

Claims (4)

1. a kind of manufacture method of the floor tile of application cyclohexanediol copolyester, comprises the following steps: Provide a protective layer, a printing layer and a filling layer, and the protective layer, the printing layer and the filling layer are respectively made of cyclohexanediol copolyester; Laminating the protective layer, the printing layer and the filling layer to form a semi-finished floor tile; and The semi-finished floor tiles are immersed in a stress release tank containing hot water at 80°C to 100°C to release the semi-finished floor tiles by stress and form floor tiles. 2. The manufacturing method according to claim 1, characterized in that, before the step of providing the protective layer, the printing layer and the filling layer, the following step is further included: cutting the protective layer, the printing layer and the filling layer respectively Layer to desired size. 3 . The manufacturing method according to claim 1 , further comprising the step of: cutting the floor tile to a proper size after the step of stress releasing the semi-finished floor tile. 4 . 4 . The manufacturing method according to claim 1 , wherein the protective layer, the printing layer and the filling layer are bonded together by an oil pressure bonding device.