KR20200130611A - Flooring materials - Google Patents

Abstract

The present invention relates to a laminate floor material which is a floor construction material and, more specifically, to a laminate floor material for easily realizing chevron (V-type pattern). The floor material, as a floor material divided into a plurality of divided sheets, comprises: a surface protection layer (100) in which aluminum oxide (Al_2O_3) is dispersed; a pattern paper (200) in which a pattern is formed; a high pressure melamine (HPM) sheet (300); a physical property reinforcement layer (400); a methylene diphenyl diisocyanate (MDI) layer (500) for waterproofing; and a cork layer (600) for noise reduction. The pattern paper (200) has a pattern (210) having an inclination.

Description

River floor flooring {FLOORING MATERIALS}

The present invention relates to a floor construction material, a gangmaru flooring, and more particularly, to a gangmaru flooring material for easily implementing a chevron (V-shaped pattern).

The present invention relates to a flooring material. The shape of the flooring material is presented in a variety of ways by varying the mutually laminated structure of the laminated wooden boards according to the purpose of use. For example, there are wooden floors, plywood floors, reinforced floors, and river floors. Among them, Gangmaru is a board prepared by combining the advantages of plywood floors and reinforced floors, and complements the disadvantages of plywood floors' poor durability and scratches, and provides a high-strength surface protection layer while maintaining the natural texture of wood. It is designed to be resistant to impacts from the air, and it is characterized by reducing structural deformation due to moisture or temperature by using water-resistant plywood. In order to reinforce the strength of the ridge and add various functions, a number of attempts have recently been made to modify the structural and surface properties of the ridge. Hereinafter, we look at the related prior literature. The identification code in the following prior literature is irrelevant to the present invention.

Registered Utility Model No. 20-0284034'Reinforced floor covered with a solid wood pattern' is an overlay layer (2) impregnated with melamine resin from the top with a laminated laminate structure on the surface layer made of plywood as a substrate material (1), and a pattern In a conventional reinforced floor consisting of a pattern layer (3) impregnated with melamine resin after printing, and a base layer (4) impregnated with phenol resin on kraft paper, the structure of the base layer (4) is composed of multiple layers. Make the overall thickness of 0.6~1mm, make the color of the base layer (4) the same color as the color of the pattern layer (3), construct the floorboard, and chamfer the assembly surface to make the laminate layer of the assembly to be "V It disclosed a reinforced floor coated with a solid wood pattern, characterized in that it is cut and configured to have the same texture as the wood floor. No. 20-0284034 has the same configuration as the above, and can take advantage of the advantage of eliminating the deviation between each floor of the floor by combining the "V" cutting on the wooden floor. The cutting surface also has the same color and texture as the wooden pattern. Since it is configured to have a reinforced floor, it is possible to construct a reinforced floor at a lower cost compared to a wooden floor, and because the surface layer is coated with a resin, it provides a reinforced floor with high surface strength and no deterioration of the pattern.

Patent Publication No. 10-2017-0043218'Method of manufacturing a steel floor tile with an HPM sheet attached and a steel floor tile manufactured by the method' relates to a steel floor tile with a high pressure melamine (HPM) sheet, and more detailed The gravure paper on the surface of the HPM sheet is laminated on the bottom of the veneer, and then press-molded at high temperature and high pressure, and then a PVC tile or fabric, that is, a so-called decorative tile, is manufactured to prevent numerical deformation such as shrinkage and expansion due to heat. It can be prevented, as well as abrasion resistance, impact resistance, discoloration resistance, cold resistance, durability, heat resistance, etc.It relates to a method of manufacturing a steel floor tile attached with an HPM sheet, and a steel floor tile manufactured by the method. No. 10-2017-0043218 describes an impregnation step of impregnating printed gravure paper and veneer in one of melamine resin, urea resin, and phenol resin at 20 to 100 g/m2 and drying, and at the bottom of the impregnated gravure paper Forming step of laminating one or more veneers and molding at a pressure of 15 to 50 kgf/cm2 at 100 to 150°C, and molding to complete the molding by holding at 130 to 150°C for 3 to 5 minutes in the molded state In the completion step, the impregnated gravure paper and one or more veneers are laminated and molded to a PVC tile or fabric, and an adhesive is applied to the bottom of the veneer, and the PVC tile or fabric is adhered. A method for manufacturing a steel floor tile with an HPM sheet, characterized in that it consists of a bonding step to complete, and the steel with an HPM sheet, characterized in that the veneer is cut to a thickness of 0.2 to 3 mm and then dried to a moisture content within 10%. Floor tile manufacturing method, the adhesive is a method for manufacturing a steel floor tile with an HPM sheet, characterized in that the adhesive is limited to a modified vinyl resin-based adhesive, and a printed product that is impregnated with any one of melamine resin, urea resin, and phenol resin and then dried. Gravure paper, a veneer impregnated with any one of melamine resin, urea resin, and phenolic resin at the bottom of the gravure paper and dried, an adhesive applied to the bottom of the veneer, and a PVC tile or fabric adhesively bonded to the bottom of the adhesive. ), and a gangmaru tile with an HPM sheet, characterized in that the adhesive is limited to a modified vinyl resin-based adhesive, and “gang maru tile with an HPM sheet”, which is characterized in that it consists of. The above configuration not only has a large surface hardness, but also saves the neck of the laminated natural veneer and reliably blocks moisture penetration into the natural veneer, has little heat shrinkage or thermal expansion, and allows delamination and moisture penetration of the component sheet. PVC tiles or fabrics are bonded to the lower layer of the HPM sheet with no pores with an adhesive, so that it is strong and durable.

Registered utility model 20-0284034 Announcement date of'Reinforced floor covered with solid wood pattern' July 31, 2002 Published Patent No. 10-2017-0043218'Method of manufacturing gangmaru tile with HPM sheet attached and gangmaru tile manufactured by the method' Publication date April 21, 2017

The technical problem to be achieved by the present invention is to provide a river floor for easily implementing a chevron (V-shaped pattern). In the chevron type floor construction, as shown in the picture in Fig. 1, the panel is in contact with the V-shape. Such a chevron-type floor construction has the advantage of having a beautiful appearance, but requires higher precision during processing, and there is a problem that the productivity of the panel is inevitably lowered. In addition, construction is not easy, production standards are limited, and there are many joints, so there is a lot of concern that foreign substances will be inserted between the joints. Accordingly, the present invention is to provide a flooring material that can more easily construct such a chevron shape.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention is a floor material divided into a plurality of split sheets, a surface protection layer 100 in which aluminum oxide (Al2O3) is dispersed, and a patterned paper 200 Wow, high pressure melamine sheet (HPM; high pressure melamine sheet) 300, a property reinforcing layer 400, a methylene diphenyl diisocyanate (MDI) layer 500 for waterproofing, and a cork layer for noise reduction ( 600), and the pattern paper 200 provides a flooring material, characterized in that it has a pattern 210 having an inclination.

According to an embodiment of the present invention, it can be easily constructed, and a texture of a sheet divided diagonally can be realized.

In addition, by printing a pattern on a panel at a time, productivity is increased during manufacturing, cost can be reduced, and the pattern is freely expressed. In addition, by applying a surface protective layer in which aluminum oxide is dispersed and a high pressure melamine sheet (HPM), it is possible to realize a visual effect and texture as if multiple panels are overlapped with a simple pattern.

In addition, the following physical properties can be implemented.

1. Heat resistance: It can withstand indirect heat up to 180°C for 30 to 1 minute, and it was not deformed regardless of the time applied for up to 8 hours to heat exposure at 100°C and below 60°C. In addition, it can withstand a cigarette fire for more than 10 minutes (however, local gloss reduction may occur), and there is no problem in the case of spilling a boiling water kettle or high temperature steam.

2. Cold resistance: It does not break even in the cold of -30 degrees below zero.

3. Wear resistance

-General grade: There was no abnormality at all when a leather wear wheel having a diameter of 44.4mm and a width of 12.7 was contacted with the flooring material of the present invention and then rotated 400 times.

-High wear resistance grade: There was no abnormality at all after 10,000 rotations of a leather wear wheel with a diameter of 44.4 mm and a width of 12.7 in contact with the flooring material of the present invention.

4. Impact resistance: The steel ball with a mass of 224g and a diameter of 38.1mm has no abnormality in impact at a height of 300mm. (KS100mm pass)

5. Scratch resistance There was no abnormality in scratch with a load of 200g per unit area of 1mm2 (KS standard 70g).

6. Chemical resistance

-Acetic acid, aqueous ammonia, alcohol, amyl acetate, carbon tetrachloride, butyl acetate, olive oil, paraffin, phenol, gasoline, benzene, soapy water, sugar water, toluene, etc.: No effect for more than 16 hours.

-Caustic soda with a concentration of 10% or more, hydrochloric acid, oxalic acid, nitric acid, sulfuric acid, phosphoric acid with a concentration of 10% or more, silver nitrate with a concentration of 1% or more, and iodine alcohol: no effect until 10 to 15 minutes.

-Concentrated hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, hydrogen peroxide solution, hypochlorous acid bleach, potassium permanganate, lemon/strawberry juice, hair dye, other abrasives, or cleaner containing acid or alkali: within 10 seconds No effect upon removal

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a photograph of a conventional chevron flooring.
2 is an exploded perspective view showing each layer of the panel of the flooring material of the present invention.
3 is an explanatory view illustrating a state in which individual panels of the flooring material of the present invention are combined.
4 is a plan view showing an embodiment in which the pattern of the pattern paper is wavy.
5 is an exploded perspective view showing an embodiment to which a divided pattern paper and a support sheet are applied.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and therefore is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, bonded)" with another part, it is not only "directly connected", but also "indirectly connected" with another member in the middle. "Including the case. In addition, when a part "includes" a certain component, it means that other components may be further provided, rather than excluding other components unless specifically stated to the contrary.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

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

FIG. 2 is an exploded perspective view showing each layer of a panel of a flooring material of the present invention, and FIG. 3 is an explanatory view illustrating a state in which individual panels of the flooring material of the present invention are combined.

In the present invention, in the flooring material divided into a plurality of dividing sheets, the surface protection layer 100 in which aluminum oxide (Al2O3) is dispersed, the patterned paper 200, and high pressure melamine impregnated paper (HPM) sheet) 300, a physical property reinforcing layer 400, a methylene diphenyl diisocyanate (MDI) layer 500 for waterproofing, and a cork layer 600 for reducing noise, and the pattern paper ( 200) provides a flooring material characterized in that it has a pattern 210 having a slope.

The present invention is to implement the chevron construction effect only with the pattern 210 of the pattern paper 200. For this, a surface protection layer 100 in which aluminum oxide (Al2O3) is dispersed, a high pressure melamine sheet (HPM) 300 and a physical property reinforcing layer 400 are applied. The surface protection layer 100 in which the aluminum oxide (Al2O3) is dispersed has the same texture as a wooden panel, and the high pressure melamine sheet (HPM) 300 and the physical property reinforcing layer 400 are The same physical properties are realized.

4 is a plan view showing an embodiment in which the pattern of the pattern paper is wavy. In the embodiment of FIG. 4, the pattern 210 of the pattern paper 200 includes a straight line pattern having a slope or a wavy line having an average slope value.

5 is an exploded perspective view showing an embodiment to which a divided pattern paper and a support sheet are applied. In the exemplary embodiment of FIG. 5, the pattern paper 200 includes a divided pattern paper 220 divided according to the inclination of the pattern, and a support sheet 230 supporting the divided pattern paper 220, and the division The pattern paper 220 is attached on the support sheet 230, and a pattern 210 having an inclination is formed by the interval between the divided pattern papers 220. By the spacing between the divided pattern papers 220, a texture that distinguishes each panel as in the conventional chevron construction is provided. In order to further maximize this effect, the thickness of the divided pattern paper 220 is preferably 1 to 10 mm. As the divided pattern paper 200 is protected by the surface protection layer 100 in which aluminum oxide (Al2O3) is dispersed, the space between the divided pattern papers 220 is also protected from foreign matter.

The surface protection layer 100 in which the aluminum oxide (Al2O3) is dispersed is preferably in which aluminum oxide is dispersed in a coating solution of a thermosetting or photocurable compound solvent. However, in the case of the thermosetting compound, when heat is applied to form the surface treatment layer, it is more preferable to use a photocurable compound because the physical properties of other layers, particularly the elastic layer, may be changed by heat. At this time, as the curable compound, a monomer or oligomer having one or more functional groups such as an unsaturated bond group capable of crosslinking reaction may be used, and these include urethane acrylate, epoxy acrylate, polyether acrylate, polyester acrylic Rate, dipentaacrythritol hexaacrylate, dipentacrythritol pentaacrylate, pentaacrylthiol tetraacrylate, dipentaerythritol hexaacrylate, dipentaerythritol pentaacrylate, etc. may be used, but these are exemplary And the invention is not intended to be limited thereto. In the present invention, these can be used alone or as a photocurable compound by mixing two or more. The coating solution containing the photocurable compound generally contains a photopolymerization initiator in addition to the photocurable compound and the solvent, and if necessary, various additives such as a light stabilizer and a leveling agent are included within a range that does not change the physical properties of the hard coating layer. Can be. The surface treatment layer may have a surface hardness of 7H or more, as measured by pencil hardness, and may have excellent surface hardness of the plastic film, and more preferably be adjusted to be in the range of 7H to 8H. The photocurable compound constituting the surface treatment layer may preferably be a conventional photocurable urethane acrylate.

The high pressure melamine sheet (HPM) to which the patterned pattern paper 200 is attached is a thermosetting resin such as melamine and phenol on a paper or fibrous pattern printed with natural and artificial patterns on one side. It is a plate-like material that is impregnated and laminated with resin and compression-molded by a heat pressure of 50kgf/cm² or more in a multi-daylight press. The bonding method is not the LPM method that melts and bonds by applying heat, but the adhesive is applied after applying the adhesive with a cold press. Alternatively, it can be bent by applying heat (post forming method). Since the strength of the surface material is much higher than that of LPM, it has remarkably strong characteristics against scratches and heat.

The high pressure melamine sheet (HPM) 300 is manufactured through the following process.

a) reaction step (s100);

The process of synthesizing a resinous substance by stirring melamine and formaldehyde or phenol and formaldehyde, plasticizer, etc.

b) impregnation drying step (s200);

Process of mating melamine resin impregnated paper and phenolic resin impregnated paper according to the thickness and use, then placing the stainless steel plate on the melamine resin impregnated paper and heating and pressurizing it with a press

c) molding process (s300);

Process of mating melamine resin impregnated paper and phenolic resin impregnated paper according to the thickness and use, then placing the stainless steel plate on the melamine resin impregnated paper and heating and pressurizing it with a press

d) cutting and sanding process (s400);

The process of cutting the product molded by the press by standard and polishing the back side with sandpaper for easy adhesion.

The physical property reinforcing layer 400 may be a metal plate such as an aluminum plate, a magnesium plate, or a stainless plate to reinforce durability, stiffness and non-combustibility. The physical property reinforcing layer 400 is preferably a material having high rigidity in order to prevent damage due to deformation of the cork layer 600 at the bottom of the physical property reinforcing layer 400.

The methylene diphenyl diisocyanate (MDI) layer 500 for waterproofing is composed of aromatic diisocyanates. Methylene diphenyl diisocyanate is largely divided into MDI monomers and 4Polymeric MDI, and MDI monomers are composed of three isomers, 2,2'-MDI, 2,4'-MDI, and 4,4'-MDI. Of these, the 4,4'-isomer is called pure MDI or Monomeric MDI, and polymeric MDI is a mixture of monomeric MDI and higher molecular weight polynuclear methylene diphenyl diisocyanate. The methylene diphenyl diisocyanate (MDI) layer 500 of the present invention may employ one or both of Monomeric MDI and Polymeric MDI. The methylene diphenyl diisocyanate (MDI) layer 500 provides excellent waterproof performance. It is preferable that the thickness of the methylene diphenyl diisocyanate (MDI) layer 500 is 5 to 10 mm.

The cork layer 600 for noise reduction has a function of absorbing impact to reduce inter-layer noise. It is preferable that the thickness of the cork layer is 1 to 3 mm.

Although the present invention has been described with the accompanying drawings, this is only one of various embodiments including the gist of the present invention, and is intended to be easily implemented by those of ordinary skill in the art. As for the purpose, it is clear that the present invention is not limited to the above-described embodiments. Accordingly, the scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto by changes, substitutions, substitutions, etc. within the scope not departing from the gist of the present invention are the rights of the present invention. Will be included in the scope. In addition, some of the configurations in the drawings are intended to more clearly describe the configurations, and it is clarified that they are exaggerated or reduced and provided. In addition, the reference numerals are for better understanding and do not mean that the shape and structure of the present invention are limited to the accompanying drawings.

100. Surface protection layer
200. Pattern
210. Pattern
220. Split Pattern Paper
230. Support sheet
300. High pressure melamine impregnated paper
400. Physical property reinforcement layer
500. Methylene diphenyl diisocyanate (MDI) layer
600. Cork layer

Claims (2)

In the flooring material divided into a plurality of split sheets,
The surface protection layer 100 in which aluminum oxide (Al2O3) is dispersed,
Patterned paper (200) with patterns,
High pressure melamine sheet (HPM) (300),
Physical property reinforcement layer 400 and,
A methylene diphenyl diisocyanate (MDI) layer 500 for waterproofing,
Consists of including a cork layer 600 for noise reduction,
Flooring, characterized in that the pattern paper 200 has a pattern 210 having an inclination. The method of claim 1,
The pattern paper 200 includes a divided pattern paper 220 divided according to the inclination of the pattern, and a support sheet 230 supporting the divided pattern paper 220,
Flooring, characterized in that the divided pattern paper 220 is attached on the support sheet 230, and a pattern 210 having an inclination is formed by the spacing between the divided pattern papers 220.

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