KR101866800B1 - Loose lay tile making method - Google Patents

Abstract

More particularly, the present invention relates to a method of manufacturing loose-rails, which is excellent in non-slip properties, durability and dimensional stability when used as a flooring material, and has improved ease of installation.
INDUSTRIAL APPLICABILITY According to the present invention, when used as a floor material, it is possible to obtain an effect that the non-slip property, the durability and the dimensional stability are excellent, and the ease of installation is improved.

Description

{LOOSE LAY TILE MAKING METHOD}

More particularly, the present invention relates to a method of manufacturing loose-rails, which is excellent in non-slip properties, durability and dimensional stability when used as a flooring material, and has improved ease of installation.

In general, flooring materials (including flooring) are mainly made of wood, and eco-friendly flooring materials are being introduced for the purpose of blocking the moisture on the concrete floor and blocking hazardous materials along with the development of housing, especially apartment culture.

The most common flooring material, the floor tile, is a soft PVC sheet because of its excellent processability and flexibility.

However, in the case of a flooring material having a certain thickness and requiring abrasion resistance, that is, a floor tile, simple PVC alone can not satisfy the required characteristics.

Recently, LVT (Luxury Vinyl Tile) and the like have been disclosed.

Since LVT is made of the most expensive vinyl material among PVC, it has a very good durability. In addition, since it is applied by using an adhesive, it is also excellent in non-slip property.

However, in the case of LVT, there is a disadvantage in that it is hard to remove once it is applied because it is applied by fixing using an adhesive, and maintenance is difficult and the workability is very bad.

This is not a limitation of LVT but is a disadvantage which is applied to most loose lay tiles which are developed to increase non-slip property.

The presently disclosed non-slip flooring, loose-laying tile, forms a single tile by applying heat to a tile in the state that a plurality of sheets are laminated on a non-slip sheet. This is because the sheet is about 1 m in size, It is difficult to press-form because the plate is too large and too heavy.

Therefore, a new alternative for improving productivity is required.

Korean Registered Patent No. 10-1186601 (September 21, 2012), 'Synthetic resin flooring material tile with a design embossing pattern in the middle layer' Korean Registered Utility Standard No. 20-0470687 (Dec. 27, 2013), "Floor Material Containing Biopolymer Resin" Korean Utility Model Publication No. 20-2012-0008710 (2012.12.20.), "Soft Tile and Manufacturing Method Thereof" Korean Registration Practice No. 20-0476687 (Feb. 19, 2015), "Flooring with Floating Film"

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method of manufacturing a loose-tile, which is excellent in non-slip properties, durability, dimensional stability, There is a main purpose.

According to the present invention, there is provided a method of manufacturing a lustrous tile, comprising:
A process for preparing a non-slip sheet formed by sheet-forming a composition comprising 40-80% by weight of PVC, 10-50% by weight of DOTP (Dioctyl terephthalate) and the balance filler: 10-40% by weight of PVC sol, A process for laminating a first impregnation sheet for shrinking and swelling prevention, which is formed into a sheet, on a non-slip sheet, comprising: a first step of PVC calendering; Forming a non-foamed sheet on the first impregnated sheet to adjust the thickness;
A process for preparing a non-foamed sheet for thickness control, wherein the PVC is calendered: a process of laminating a third non-foamed sheet made of calendared PVC onto the second non-foamed sheet: 5-15% by weight of glass fiber and DOTP 10 to 30% by weight of dioctyl terephthalate, and a second filler sheet for preventing shrinkage and shrinkage expansion formed by molding the composition of the remaining fillers into a sheet form on the third non-foamed sheet: forming a transfer printing layer on the second impregnated sheet A process for laminating a clear upper sheet on the upper surface of a second impregnation sheet to protect the transfer printing layer: 20-40 wt% of monoester and 10-20 wt% of oligomer on the upper surface of the upper sheet , 10-20% by weight of polyacrylate, 10-20% by weight of polyarylate, 10-20% by weight of silicone, and the balance filler to form a UV coating layer;
And bonding the first non-foamed sheet of the lower plate and the second non-foamed sheet of the upper plate to a reactive urethane adhesive that is a reactive polyurethane resin.

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INDUSTRIAL APPLICABILITY According to the present invention, when used as a floor material, it is possible to obtain an effect that the non-slip property, the durability and the dimensional stability are excellent and the ease of installation is improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exemplary layer structure diagram showing one embodiment of a lustrous layer according to the present invention. Fig.
2 is an exemplary layer structure diagram showing another embodiment of the lustry tile according to the present invention.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As illustrated in FIG. 1, a preferred embodiment of the lustrous tile according to the present invention is manufactured by directly laminating sheets of 2 m in size so as to dramatically increase productivity as compared with the conventional art.

Therefore, the loose tile according to the present invention comprises a hot-melt adhesive layer 300 for laminating the upper plate 100, the lower plate 200, and the upper and lower plates 100 and 200.

That is, since the luster layer according to the present invention has a thickness of usually 4-5 mm, the upper plate 100 constituting the upper layer and the lower plate 200 constituting the lower layer are separated and formed on the basis of the hot-melt adhesive layer 300, The upper plate 100 and the lower plate 200 each have a thickness corresponding to about half of the luster tile. Even though the plate has a sheet width of 2 m, the weight is only half the total thickness of the tile, So that machining is possible.

In addition, the adhesive for laminating the upper plate 100 and the lower plate 200 should have a high adhesive strength and maintain a sufficient adhesive force even during long-term use.

Therefore, in the present invention, the adhesive layer is formed by applying the hot melt method through the polyurethane resin, and the use of the water-based adhesive is not limited. However, since the water-based adhesive is weak in moisture,

Here, the hot-melt adhesive layer 300 is made of a reactive urethane adhesive, which is a reactive polyurethane resin, and is melted at an operating temperature of 120-140 占 폚, has a viscosity of 13,000 mPas and a density of 1.1 g / cm3.

Meanwhile, the lower plate 200 is a portion in contact with the bottom surface, and the upper plate 100 constitutes the upper surface of the tile, so the structure of the lower plate 200 will be described first.

The lower plate 200 includes a non-slip sheet 210, a first impregnated sheet 220 laminated on the non-slip sheet 210, a first non-foamed sheet 230 plywood on the first impregnated sheet 220, .

At this time, since the non-slip sheet 210, the first impregnation sheet 220, and the first non-foam sheet 230 all contain a PVC component, they are heated and pressurized in a state of sequentially stacking them, It can be plywood.

This is possible because, as described above, it is possible to reduce the weight by half by dividing it into half the thickness of the tile and dividing it into the upper plate and the lower plate, although the plate size is enlarged twice as large as the conventional one.

Here, the non-slip sheet 210 is provided to maximize the frictional force with the bottom surface so as to prevent the sheet from slipping easily on the bottom surface, and it is possible to use a rubber sheet or a silicon sheet, The embossed PVC sheet is used.

PVC sheets are preferred because they are easy to process and have a low processing cost, and the embossing on the white surface can be easily formed by continuous roll processing.

At this time, the preferable PVC sheet, that is, the non-slip sheet 210 has a PVC content of 40-80% by weight, a plasticizer content of 10-50% by weight, and the remainder contains a filler.

The first impregnation sheet 220 is for impregnating a glass fiber to prevent shrinkage and expansion of the product to maintain dimensional stability. When the glass fiber is used, the contraction and expansion rate of the first impregnation sheet 220 is reduced to about 0.01% .

In particular, the impregnation of the glass fiber is preferably impregnated with PVC sol, and the composition for molding is preferably 10 to 40% by weight of PVC sol, 5 to 20% by weight of glass fiber 5- 15 wt%, plasticizer 10-30 wt%, and the balance filler.

Here, the higher the content of the glass fiber is, the stronger the property of preventing shrinkage and expansion, and the dimensional stability is improved while the durability is improved. However, if it is added in an amount of more than 15% by weight, the coating property and the impregnation property are abruptly lowered to fail to perform the function, and when it is added in an amount of less than 5% by weight, shrinkage and expansion inhibiting ability are rapidly decreased.

In addition, DOTP (Dioctyl terephthalate) is suitable as the plasticizer used above.

The first non-foamed sheet 230 is a sheet layer provided to adjust the thickness of the tile. In order to adjust the thickness of the first non-foamed sheet 230, the non-foamed sheet should be used.

In this case, the first non-foamed sheet 230 is preferably a PVC calendared sheet made by calendaring PVC in consideration of the heat-press bonding characteristics.

On the other hand, the upper plate 100 is configured as follows.

That is, the second non-foamed sheet 110 constituting the lowermost layer, the third non-foamed sheet 120 laminated on the second non-foamed sheet 110, the second impregnated sheet 130 laminated thereon, A top sheet 150 for protecting an upper surface of the transfer printing layer 140 and a UV coating layer 160 applied on the topsheet 150. The transfer printing layer 140 is formed on the upper surface of the transfer printing layer 140,

In this case, the second non-foamed sheet 110, the third non-foamed sheet 120, the second impregnated sheet 130, and the upper sheet 150 are heated and pressed in the state of being successively laminated to each other like the lower plate 200 So that the upper plate 100 is formed as a single body. The upper plate 100 has a size of 2 m, which is twice as large as that of the conventional upper plate 100.

Also, the second and third non-foamed sheets 110 and 120 are sheet layers included to match the thickness of the first non-foamed sheet 230 described above, and a PVC calendar sheet should be used.

The second impregnated sheet 130 has the same composition and function as the first impregnated sheet 220 described above.

In other words, in the present invention, since the first and second impregnated sheets 220 and 130 in the upper plate 100 and the lower plate 200 are subjected to numerical stabilization with the hot-melt adhesive layer 300 interposed therebetween, It is advantageous to be able to do this.

In addition, the transfer printing layer 140 is a layer for developing patterns, and is a layer in which patterns are printed by a transfer method. The pattern can be various forms such as a pattern of wood, an emboss.

The topsheet 150 is attached to the top of the transfer printing layer 140. The topsheet 150 is a sheet having transparency to increase hardness to improve durability and to improve the durability of the transfer printing layer 140 ) Protection function.

In this case, the upper sheet 150 is configured to improve the applicability and improve the environment-friendliness by adding 10 to 40 parts by weight of a plasticizer to 100 parts by weight of transparent PVC, and the plasticizer used herein is also DOTP (Dioctyl terephthalate ) Is appropriate.

A UV coating layer 160 is formed on the upper sheet 150.

The UV coating layer 160 may have various shapes depending on the application. For example, the UV coating layer 160 may contain a large amount of a functional material for controlling the gloss or enhancing scratch resistance in the surface, May be added, and the additive composition may be adjusted so that all of these characteristics can be realized.

In the present invention, the UV coating for forming the UV coating layer 160 may include 20-40% by weight of a monoester, 10-20% by weight of an oligomer, 10-20% by weight of Poly Diacrylate, 10-20% by weight of Silicon, and the balance filler.

In addition, the luster tile having the above-described layered structure may have a rectangular shape, and may have a click-locking structure as well as all sides, that is, the peripheries are right-angled.

Here, the click-locking structure is a patented technology that is gained by a floor material manufacturer, such as Valgee or Unilin, in which protrusions are formed on one side of the lustrile tile and the protrusions are pivoted Which is formed to be pivotally assembled with each other.

In the present invention, the first and second non-foamed sheets 230 and 110 and the second non-foamed sheets 110 and 110, which are firmly laminated by the hot-melt adhesive layer 300, And a third non-foamed sheet 120 plywood with the first non-foamed sheet 120 should be formed on one side of the three sheets and the opposite side thereof.

Further, the present invention can be improved to a structure in which the sense of cushion is increased as in the example of Fig.

According to FIG. 2, it is possible to make a loose ray, more preferably an acoustic tile, which enhances the cushioning feeling by replacing the non-slip sheet 210 constituting the base of the lower plate 200 with the foam sheet 210 '.

At this time, the foam sheet 210 'can optimally increase the cushion feeling while reducing the cost by using the foamed foam sheet foamed at a foaming magnification of 3-4 times.

In addition, since the present invention uses a pressure-sensitive adhesive without using an adhesive at the time of construction, it can be detached and attached many times. This is a completely different point from the conventional loose-lay tile, which can only be applied using a conventional adhesive.

The reason for this is that the weight is increased by 2m and the weight is increased, but the seatability is improved remarkably.

Also, in the case of the modified example using the foam sheet 210 ', it is of course possible to use both of the two configurations in the case of having a rectangular shape and a click-locking structure in which protrusions and recesses are formed on both sides.

100: top plate
200: Lower plate
300: hot melt adhesive layer

Claims (16)

A method for manufacturing a loose-ray tile, comprising:
A process for preparing a non-slip sheet formed by sheet-forming a composition comprising 40-80% by weight of PVC, 10-50% by weight of DOTP (Dioctyl terephthalate) and the balance filler: 10-40% by weight of PVC sol, A process for laminating a first impregnation sheet for shrinking and swelling prevention, which is formed into a sheet, on a non-slip sheet, comprising: a first step of PVC calendering; Forming a non-foamed sheet on the first impregnated sheet to adjust the thickness;
A process for preparing a non-foamed sheet for thickness control, wherein the PVC is calendered: a process of laminating a third non-foamed sheet made of calendared PVC onto the second non-foamed sheet: 5-15% by weight of glass fiber and DOTP 10 to 30% by weight of dioctyl terephthalate, and a second filler sheet for preventing shrinkage and shrinkage expansion formed by molding the composition of the remaining fillers into a sheet form on the third non-foamed sheet: forming a transfer printing layer on the second impregnated sheet A process for laminating a clear upper sheet on the upper surface of a second impregnation sheet to protect the transfer printing layer: 20-40 wt% of monoester and 10-20 wt% of oligomer on the upper surface of the upper sheet , 10-20% by weight of polyacrylate, 10-20% by weight of polyarylate, 10-20% by weight of silicone, and the balance filler to form a UV coating layer;
And bonding the first non-foamed sheet of the lower plate and the second non-foamed sheet of the upper plate to a reactive urethane adhesive that is a reactive polyurethane resin. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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