KR20110093282A - Method of producing environmentally friendly bottom tile and environmentally friendly bottom tile made thereby - Google Patents

Abstract

PURPOSE: A method for producing an environment-friendly bottom tile is provided to facilitate the storage and construction since the thickness of a floor tile is thin and to avoid the harmfulness to the human body. CONSTITUTION: A method for producing an environment-friendly bottom tile comprises the steps of: successively laminating a coating layer(21), a transparent layer(22), a printing base layer(24), and a base layer(26) to form an intermediate; applying an adhesive in order to form an adhesive layer to one side of a release layer; drying the release layer; arranging the release layer on the base layer of the intermediate and passing the resultant through a roller to laminate two layers; and cutting the laminate.

Description

Environmentally friendly floor tile and its manufacturing method {Method of producing Environmentally friendly bottom tile and Environmentally friendly bottom tile made thereby}

The present invention relates to an eco-friendly floor tile, and more particularly, to an eco-friendly floor tile and a method of manufacturing the same, by using polyolefin-based polypropylene as a main raw material and making the thickness of the floor tile thin. It is about.

In another aspect, the present invention by adding a pressure-sensitive adhesive layer and a release paper made of an acrylic ester-based water-based adhesive on the back of the prepared floor tile to facilitate easy installation by the consumer and to an eco-friendly floor tile harmless to the human body and its manufacturing method It is about.

Conventional floor tiles are composed of PVC and calcium carbonate as main components.

Looking at an example of a conventional floor tile (A '), as shown in Figure 1, the transparent layer 12' to protect the printed layer 13 '; A printed layer 13 'providing various colors and pattern effects; A base layer 14 '(also called a stop layer) that maintains the proper thickness and reduces dimensional changes with temperature; It is also composed of a balance layer 15 '(also referred to as an underlayer) that maintains the proper thickness and prevents the product from bending up and down.

Reference numeral 11 ′ is a coating layer.

The laminated coating layer 11 ', the transparent layer 12', the printing layer 13 ', the base layer 14', the balance layer 15 'of the laminated material is 120 ~ 150 ℃, pressure 10 in the molding press To 30 kgf / cm 2, molded under the conditions of 20 to 60 minutes, and then coated with UV coating in a coating apparatus.

It is then cured with UV lamps, aged under hot water or hot air and cut to the desired size to complete the product.

At this time, the thickness of the entire product is about 1.5 to 4.0 mm.

The floor tile as described above is used by a professional user (constructor) using a separate floor tile adhesive.

However, construction requires special skills and is expensive.

To improve this, the application of oil-based adhesive on the back of the F.C floor tiles and the release paper are attached to the Dy (Do It Yourself) product that can be installed on the fly for consumers to develop and use.

These DAI Y products are produced and used a lot because they are easy to save cost because they are installed directly on top of the existing floorboards, wooden floorboards, and reinforced floorboards.

However, there is a problem in that the bottom tile using the above-mentioned fib C and calcium carbonate as the main material is not environmentally friendly due to the octyl plasticizer used in the manufacture and may be harmful to the human body.

In addition, there was a problem in releasing dioxin, an environmental hormone when discarding the incineration of the product after use.

In addition, the oil-based adhesive used on the back of the floor tile has caused problems, such as sick house syndrome due to the organic volatile substances.

The present invention has been made to solve the above problems of the prior art, by using a polyolefin-based polypropylene as the main raw material and to provide a thin floor tile thickness to provide a floor tile to facilitate storage and construction, and thus The purpose of the present invention is to add an adhesive layer and a release paper made of an acrylic ester-based aqueous adhesive to the back surface of the manufactured floor tile so that it can be easily installed by consumers, and provide an eco-friendly floor tile that is harmless to the human body and a method of manufacturing the same. have.

An object of the present invention described above, the first step of preparing an intermediate by sequentially laminating a coating layer, a transparent layer, a printing substrate layer, a base layer; Coating a pressure-sensitive adhesive to form a pressure-sensitive adhesive layer on one surface of the release paper; Three steps of drying the release paper; 4 steps of placing the release paper in the base layer of the intermediate and passing through the pressing roll to lamination; It can be achieved by a method for producing an environmentally friendly floor tile comprising five steps of cutting the laminated product.

The transparent layer, the printing substrate layer, and the base layer are non-stretched polypropylene films, characterized in that a linear low density polyethylene resin, a homogeneous polypropylene resin, and calcium carbonate are mixed.

The linear low density polyethylene resin is 38 to 42wt%, the homogeneous polypropylene resin is 16 to 24wt%, the calcium carbonate is characterized in that 38 to 42wt%.

A special ink layer is further formed between the transparent layer and the printing substrate layer, and the special ink layer is chlorinated polypropylene-based mixed ink pigment, polypropylene resin, and methyl ethyl ketone solvent.

The special ink layer is characterized in that the ink pigment 5-15wt%, polypropylene 10-20wt%, methyl ethyl ketone solvent 65-85wt% is mixed.

An adhesive layer is further formed between the printing substrate layer and the base layer, and the adhesive layer is chlorinated polypropylene-based mixture of a polypropylene resin and a methyl ethyl ketone solvent.

The adhesive layer is characterized in that the polypropylene resin 10 to 20wt%, the methyl ethyl ketone solvent 80 to 90wt% is mixed.

The adhesive layer may be selected from the group consisting of ethyl hexyl acrylate and butyl acrylate monomers selected from methyl methacrylate, acrylic acid, methacrylic acid, glycidyl methacrylate, hydroxy ethyl methacrylate, or a mixture thereof. It is characterized in that it is prepared by polymerization together.

The release paper is coated with a polyethylene-based or polypropylene-based resin on a white paper made of cellulose, characterized in that the silicone is coated for release on it.

According to the eco-friendly floor tile and the manufacturing method according to the present invention, by using the olefin-based raw material and the water-based adhesive, and the thickness thereof is thin, it gives an effect of providing an eco-friendly, harmless to the human body, and easy to install floor tile.

Eco-friendly floor tile according to the present invention is a component of each layer is made of a polyolefin-based polypropylene resin and the adhesive is an aqueous series is harmless to the human body and environmentally friendly.

In addition, the thickness of each layer is much thinner compared to the conventional floor tiles, so there is an advantage in the user's storage and movement to facilitate, especially easy and easy construction.

1 is a cross-sectional view showing the structure of a conventional FBC bottom tile.
2 and 3 is a process chart showing a manufacturing method of an environmentally friendly floor tile according to the present invention,
4 and 5 is a cross-sectional view showing the structure of the environmentally friendly floor tile according to the present invention manufactured by the manufacturing method of FIGS.
6 and 7 are cross-sectional view showing the structure of the floor tile according to another embodiment of the present invention.
8 is a process chart showing a method of printing a 'special ink layer' on the 'printing substrate layer' and a method of coating the 'adhesive layer' in manufacturing an eco-friendly floor tile according to the present invention.
Figure 9 is a process chart showing a method of laminating the 'printing substrate layer' and 'transparent layer' in the present invention.
10 is a cross-sectional view showing a method at the time of pressing in the present invention,
11 is a cross-sectional view showing a lamination method of a laminate and a base layer of a transparent layer and a printing substrate layer in the present invention;
12 is a schematic view showing an adhesive coating machine according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, a manufacturing method and an article manufactured by the same will be described together.

2 and 3 is a process chart showing a manufacturing method of an eco-friendly floor tile according to the present invention, Figures 4 and 5 of the eco-friendly floor tile according to the present invention manufactured by the manufacturing method of Figures 2 and 3. A cross section showing the structure.

As shown in Figure 2, the manufacturing method of the eco-friendly floor tile according to the present invention

Manufacturing an environmentally friendly floor tile intermediate by sequentially laminating the coating layer 21, the transparent layer 22, the printing substrate layer 24, and the base layer 26 (S1);

A step S5 of cutting the intermediate to a predetermined size is used as a basic configuration.

Therefore, as shown in Figure 4, the environmentally friendly floor tile (A1) according to the present invention, the coating layer 21, the transparent layer 22, the special ink layer 23, the printing substrate layer 24, The adhesive layer 25 and the base layer 26 are laminated in this order.

In addition to this, as shown in Figure 3, in order to enable the consumer directly construction,

Coating a pressure-sensitive adhesive to form an adhesive layer 27 on one surface of the release paper 28 (S2);

Three steps of drying the release paper (28) (S3);

4 steps (S4) of disposing the release paper 28 in the base layer 26 of the intermediate obtained in the first step (S1) and then passing it through a pressing roll (S4);

It further comprises a five step (S5) for cutting the laminated product.

Therefore, as shown in FIG. 5, the eco-friendly and tacky polypropylene bottom tile (A2) according to the present invention,

Coating layer 21, transparent layer 22, special ink layer 23, printing substrate layer 24, adhesive layer 25, base layer 26, adhesive layer 27, release paper 28 from top to bottom direction It is laminated | stacked in order.

The printing substrate layer 24 is a non-stretched polypropylene (CPP: Casting Polypropylene) film having a thickness of 0.05 to 0.15 mm.

Unstretched polypropylene films are usually 38 to 42 wt% of Linear Low Density Polyethylene (LLDPE) resin, 16 to 24 wt% of Homogenius Polypropylene resin, 38 to 42 wt% of calcium carbonate (CaCO ₃ , also known as charcoal) It consists of%.

The preferred composition ratio is 40 wt% of linear low density polyethylene resin, 20 wt% of homogeneous polypropylene resin, and 40 wt% of calcium carbonate.

On the upper surface of the printing substrate layer 24, a desired pattern is printed using ink.

The ink used for printing should include an adhesive component for adhesion with the transparent layer 22, and the coating thickness of the ink during printing is preferably 5 to 10 mu m.

The constituent of the ink is a chlorinated polypropylene mixture of 5 to 15 wt% of the ink pigment, 10 to 20 wt% of the polypropylene resin, and 65 to 85 wt% of the methyl ethyl ketone solvent (MEK).

Preferred composition ratios are 10 wt% of ink pigment, 15 wt% of polypropylene resin, and 75 wt% of solvent methyl ethyl ketone solvent.

If ink other than these components is used, the adhesiveness of the printing base material layer 24 and the transparent layer 22 will fall.

On the other hand, the lower surface of the printing substrate layer 24 is applied with an adhesive layer 25 to increase the adhesion with the base layer 26, the coating thickness of the adhesive layer 25 is preferably 30 to 40 ㎛.

The constituent components of the adhesive layer 25 are also chlorinated polypropylenes containing 10 to 20 wt% of a polypropylene resin and 80 to 90 wt% of the methyl ethyl ketone solvent.

Preferable composition ratio consists of 15% of polypropylene resins, and 85% of methyl ethyl ketone solvents.

If the adhesive layer 25 other than these components is used, the adhesion between the printing substrate layer 24 and the base layer 26 may be lowered.

6 and 7 are cross-sectional views showing the structure of the floor tile according to another embodiment of the present invention.

As shown in Figure 6, the environmentally friendly floor tile (A3) according to another embodiment of the present invention,

The base layer 26 after laminating in order from the top to the bottom coating layer 21, transparent layer 22, special ink layer 23, the printing substrate layer 24, the adhesive layer 25, the base layer 26 The adhesive layer 25, the printing substrate layer 24, the special ink layer 23, and the transparent layer 22 are laminated | stacked on the lower part of this.

In addition, as shown in Figure 7, the eco-friendly and adhesive polypropylene floor tile (A4) according to another embodiment of the present invention,

The base layer 26 after laminating in order from the top to the bottom coating layer 21, transparent layer 22, special ink layer 23, the printing substrate layer 24, the adhesive layer 25, the base layer 26 An adhesive layer 25, a printing substrate layer 24, a special ink layer 23, a transparent layer 22, an adhesive layer 27, and a release paper 28 are further laminated on the lower portion of the substrate.

Therefore, the rigidity against bending is increased than the floor tiles A1 and A2 according to the first embodiment.

8 is a process chart showing a method of printing a 'special ink layer' on the 'printing substrate layer' and a method of coating the 'adhesive layer' in manufacturing an eco-friendly floor tile according to the present invention.

As shown in FIG. 8,

The special ink layer 23 is coated while passing through the application roller 43 of the ink applicator 41 containing the special ink, which is drawn from the roller on which the printing substrate is wound to form the printing substrate layer 24.

Thereafter, the adhesive layer 25 is coated while passing through the adhesive coater 45 containing the adhesive, and then wound on the roller 24a.

Thus, an intermediate formed with the special ink layer 23, the printing substrate layer 24, and the adhesive layer 25 is manufactured.

9 is a process chart showing a method of laminating a 'printing substrate layer' and a 'transparent layer' in the present invention.

9,

The roller on which the printing material forming the printing substrate layer 24 coated with the special ink layer 23 and the adhesive layer 25 is wound, and the roller on which the transparent material forming the transparent layer 22 is wound are respectively provided.

The printing material and the transparent material are drawn out from the rollers at the same time and then laminated while being heated in the heater 52.

Then, the laminated intermediate is pressed by the pressure roll 53, and after the lamination is completed, the cutting paper 56 cut to a predetermined size by the cutter 54 is collected in the collecting stand 55.

The transparent material is used to form the transparent layer 22, and an unstretched polypropylene (CPP) film of 0.02 to 0.05 mm is used, and serves to protect the printed pattern layer.

The components of the transparent layer 22 are also similar to the printing substrate layer 24.

As for the temperature conditions at the time of lamination | stacking with a press roll, 120-140 degreeC is suitable.

The transparent layer 22 may be replaced with an oriented polypropylene (OPP) film having the same thickness.

After laminating, the cutting paper 56 is obtained by cutting to an appropriate size in consideration of the pressing process.

Figure 10 is a cross-sectional view showing a method of pressing in the present invention, Figure 11 is a cross-sectional view showing a lamination method of the laminated material and the base layer of the transparent layer and the printing substrate layer in the present invention, Figure 12 is an adhesive coating machine according to the present invention It is a schematic diagram showing.

FIG. 10 shows a process of adhesive molding a base layer 26 having a thickness of 0.7 to 4.7 mm, and a laminated semi-finished product 60 made of the printing substrate layer 24a and the transparent layer 22.

Two sheets of the laminated semi-finished product 60 made of the base layer 26, the printing substrate layer 24a, and the transparent layer 22 are stacked and pressed.

At this time, the resin embossing plate 62 made of metal or plastic resin is inserted between the two transparent layers 22 to give the surface embossing effect.

In addition, a back emboss plate 61 made of metal or plastic is inserted into the lowermost two base layers 26 to apply the adhesive evenly.

In this case, as shown in FIG. 11, the laminate 56 and the base layer 26 formed of the printing substrate layer 24a and the transparent layer 22 are preferably arranged so that the grain directions are alternate with each other.

If the grains are stacked in the same direction, the shrinkage can increase after the product is finished.

In addition, the temperature at the time of pressing is preferably set to 120 to 140 ℃, the pressure is 10 to 30 kgf / ㎠, the time is 30 to 50 minutes.

The components of the base layer 26 are also similar to the print substrate layer 24.

The finished semifinished product is coated with UV coating in the coating apparatus and then cured with UV lamp and aged under hot water or hot air to stabilize the dimensions.

When the above process is completed, the eco-friendly floor tile of the present invention is cut to a suitable standard in the cutting device to complete the finished product. At this time, the thickness of the whole product is about 1.0-5.0 mm.

However, the eco-friendly and adhesive polypropylene floor tile of the present invention is further subjected to the following process.

After the aging is completed, the semi-finished product is moved to the pressure-sensitive adhesive coating machine 400 shown in FIG. 12, laminated with a release paper 28 coated with pressure-sensitive adhesive, and then cut to a desired size to complete the product.

At this time, the thickness of the whole product is about 1.0-3.0 mm.

In order to prevent warping of the finished product, the thickness of the base layer 26a is reduced to 0.85 to 4.60 mm, and the printed substrate layer 24 and the transparent layer 22 are added below the base layer 26a as shown in FIG. 4. It can also be configured in a vertical symmetric structure.

Thus, if the product is composed of up and down symmetrical structure, the whole product is symmetrical and the structure is stable, so there is an advantage that the warpage of the product is hardly generated.

The layers located below this base layer 26a play a role similar to the balance layer of conventional PVC tiles.

On the other hand, the pressure-sensitive adhesive used in the pressure-sensitive adhesive layer 27 is not a conventional oil-based or hot-melt-based pressure-sensitive adhesive, but an acrylic adhesive-based water-based adhesive that can work at room temperature and does not emit volatile substances during construction.

Specifically, the acrylic ester-based aqueous pressure-sensitive adhesive is a methyl methacrylate, acrylic acid, methacrylic acid, glycidyl methacrylate, hydride of 55 parts by weight or more of ethylhexyl acrylate and butyl acrylate monomer mixture relative to the total acrylic monomer 40 to 90 parts by weight of the acrylic pressure-sensitive adhesive component and 15 parts by weight or less of the total pressure-sensitive adhesive based on the total weight of the pressure-sensitive adhesive obtained by polymerization with a monomer selected from oxyethyl methacrylate and mixtures thereof.

The tackifying resin is preferably a terpene-based resin.

In addition, 0.2 to 4 parts by weight of the reactive anionic and nonionic surfactants are additionally added to the pressure-sensitive adhesive.

On the other hand, the release paper 28 is generally used to use a white paper, especially a white paper composed of cellulose is preferable.

The release paper 213 is a thin coating of polyethylene or polypropylene resin of about 15 to 40㎛ on a white paper made of cellulose, and the silicone treatment for release in a silicone cota (roll coating apparatus for silicon processing) 15 to 15 40 micrometers is preferable, and the weight of a release paper is 60-120 g / m <2>.

Meanwhile, referring to FIG. 12, the adhesive coating machine 400 for coating an adhesive may include an unwinder device 401, a roll coating device (or kiss coating) 403, a coating thickness adjusting device 405, and a drying device ( 407, wrinkle prevention apparatus 409, lamination apparatus 411, cutting apparatus 413, loading apparatus 415, etc. are preferable.

Referring to Figure 12,

First, the release paper 28 is attached to the unwinding (unwinding device) 401 of the adhesive coating machine.

After the release of the release paper 213 to the adhesive coating machine 400 and proceeds as follows.

The adhesive is applied to the siliconized surface of the release paper 213 by the roll coating device 403, and the amount of the adhesive is controlled by the coating thickness adjusting device 405.

At this time, 30-100 micrometers is suitable for the application thickness of an adhesive.

After the adhesive is applied, it is sent to a drying apparatus 407 (drying oven). The temperature of the drying apparatus 407 is preferably 120 to 150 ° C., and a residence time in the apparatus is suitably 10 to 30 seconds.

After passing through the drying apparatus 407, as shown in FIG. 10, the release paper 28 coated with a pressure-sensitive adhesive is laminated with the semi-finished product 60 to produce a final laminated product.

After the final product is cut according to the appropriate specifications in the cutting device 413 is completed the finished product.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, all such modifications and modifications being attached It is obvious that the claims belong to the claims.

21: coating layer 22: transparent layer
23: special ink layer 24: printing substrate layer
25: adhesive layer 26: base layer
27: adhesive layer 28: release paper

Claims (17)

Preparing an intermediate by sequentially laminating a coating layer, a transparent layer, a printing substrate layer, and a base layer;
Cutting the intermediate to a predetermined size;
Method of manufacturing a floor tile comprising a. A step of preparing an intermediate by sequentially laminating a coating layer, a transparent layer, a printing substrate layer, and a base layer;
Coating a pressure-sensitive adhesive to form a pressure-sensitive adhesive layer on one surface of the release paper;
Three steps of drying the release paper;
4 steps of placing the release paper in the base layer of the intermediate and passing through the pressing roll to lamination;
5 steps of cutting the laminated product;
Method of manufacturing a floor tile comprising a. 3. The method according to claim 1 or 2,
The transparent layer, the printing substrate layer, the base layer
A low-strength polypropylene film in which a linear low density polyethylene resin, a homogeneous polypropylene resin and calcium carbonate are mixed. The method of claim 3, wherein
The linear low density polyethylene resin is 38 to 42wt%, the homogeneous polypropylene resin is 16 to 24wt%, the calcium carbonate is a manufacturing method of the floor tile, characterized in that 38 to 42wt%. 3. The method according to claim 1 or 2,
A special ink layer is further formed between the transparent layer and the printing substrate layer.
The special ink layer is a method of producing a floor tile, characterized in that the chlorinated polypropylene-based mixture of an ink pigment, a polypropylene resin, and a methyl ethyl ketone solvent. 6. The method of claim 5,
5-15 wt% of the ink pigment, 10-20 wt% of the polypropylene, and 65 to 85 wt% of the methyl ethyl ketone solvent. 3. The method according to claim 1 or 2,
A method of manufacturing a floor tile, characterized in that an adhesive layer is further formed between the printing substrate layer and the base layer. The method of claim 7, wherein
The adhesive layer is a chlorinated polypropylene-based method of producing a polypropylene resin, a methyl ethyl ketone solvent is mixed. The method of claim 8,
The polypropylene is 10 to 20wt%, the methyl ethyl ketone solvent is 80 to 90wt% manufacturing method of the floor tile. The method of claim 2,
The adhesive layer,
An ethylhexyl acrylate and butyl acrylate monomer mixture;
Monomers selected from methyl methacrylate, acrylic acid, methacrylic acid, glycidyl methacrylate, hydroxy ethyl methacrylate or mixtures thereof;
Method for producing a floor tile, characterized in that prepared by polymerization. 40 to 90 parts by weight of the acrylic pressure-sensitive adhesive component is mixed with respect to the pressure-sensitive adhesive layer prepared in claim 10, 1 to 15 parts by weight of the tackifying resin is mixed to produce an acrylic ester pressure-sensitive adhesive, characterized in that . 12. The method of claim 11,
The tackifying resin is a manufacturing method of the floor tile, characterized in that the terpene-based resin. 12. The method of claim 11,
0.2 to 4 parts by weight or a reactive anionic and nonionic surfactant are added to the adhesive layer. The method of claim 2,
The release paper
Polyethylene-based or polypropylene-based resin is coated on a white paper made of cellulose, and a method for producing a floor tile, characterized in that the silicone is coated for release thereon. The method of claim 2,
The first step is
Performing a printing on the upper surface of the printing substrate layer, applying an adhesive layer on the lower surface, and then bonding the transparent layer and the printing substrate layer by pressing a heated pressure roll to adhere the bonding layer;
B for cutting to a predetermined size after step a;
C step of laminating the compressed material of the transparent layer and the printing substrate layer obtained after the step b to a base layer cut to a predetermined size and then pressing the pressing;
Method of manufacturing a floor tile comprising a. 16. The method of claim 15,
Pressing the step c is a temperature of 120 to 140 ℃, pressure 10 to 30 kgf / ㎠, time to produce a floor tile, characterized in that performed for 30 to 50 minutes. The floor tile manufactured by the manufacturing method in any one of Claims 1-16.

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