KR20000072510A - Multilayer-Flooring Containing Silver or Gold Flaked Powder and the Method for the Manufacturing thereof - Google Patents

Abstract

PURPOSE: Provided is a laminated floor material using gold or silver, which is excellence in a heat and electric conductivity, an antimicrobial efficiency, a moth-proof efficiency. CONSTITUTION: The powdery gold or silver is contained in the top layer of surface layers (20) or the back functional layer (33) of backsheet layers (30) or the top layer of the surface layers (20) and the back functional layer (33), wherein the top layer of the surface layers (20) comprises an oil or aqueous liquid phase composition containing 0.11-3.4 wt% of the powdery gold or silver, and the back functional layer (33) comprises an oil or aqueous liquid phase composition containing 60-80 wt% of the powdery gold or silver.

Description

Multilayer-Flooring Containing Silver or Gold Flaked Powder and the Method for the Manufacturing Technical}

The present invention provides a laminated flooring material and a method of manufacturing the laminated flooring material, characterized in that gold or silver is contained in the uppermost layer of the surface layer, the rear functional layer of the rear layer, or the rear functional layer of the uppermost layer and the rear layer of the surface layer. It relates to a manufacturing method.

FIG. 9 is a cross-sectional view of a conventional flooring material. The conventional flooring material is composed of a surface layer 20 at an upper portion and a back layer 30 at a lower portion of the substrate layer 10, and the surface layer 20 is formed of a substrate layer 10. The foam layer 21 or the non-foamed layer 22, the printed layer 23, the transparent layer 24, and the surface treatment layer 25 were sequentially formed, and the back layer 30 was in turn beneath the substrate layer 10. It consists of the back foaming layer 31 and the sizing layer 32.

Looking at the manufacturing process of such conventional flooring, first, by coating a vinyl chloride resin sol on a substrate such as paper to form a base layer 10, and then laminating a foam layer 21 or a non-foaming layer 22 thereon and then foaming After printing the pattern on the layer 21 or the non-foaming layer 22 by gravure printing or screen printing, the printed layer 23 is formed, and then the transparent layer 24 and the surface treatment layer 25 are formed on the printed layer 23. After stacking sequentially, the bottom foaming layer 31 and the sizing layer 32 are sequentially formed on the back surface of the base layer 10 to complete the flooring. At this time, the surface treatment layer 25 and the rear foaming layer 31 are needed. ) And sizing layer 32 was mixed with jade, charcoal, copper and the like.

In general, the conventional flooring material used a hydrophilic compound in the surface treatment layer 25 by focusing on the antistatic of the surface layer to obtain an antistatic effect, but had the disadvantages of lowering the physical properties of the flooring material, such as discoloration, and also some conventional flooring materials In manufacturing, some arsenic and fluorine compounds are used for antibacterial and insect repellent effect. However, in view of the recent trend of increasing interest in health and environment due to the inherent toxicity of raw materials itself, it is not preferable to use such arsenic and fluorine compounds. Did.

Therefore, in the present invention, by combining the characteristics of the gold or silver on the flooring material according to the diversified customer's demands, the excellent conductivity of the gold or silver does not adhere to the surface of the product due to the reduced frictional voltage due to the static electricity prevention of the flooring material. It is easy to clean, and excellent antibacterial and insect repellent effect to suppress the occurrence of various bacteria, pathogens and cockroaches to provide a clean and hygienic living space to the user to provide a functional flooring that customers can trust.

In addition, the thermal conductivity of the floor is evenly warm, and the electrical conductivity is good to provide a functional flooring having an electromagnetic shielding effect.

1 and 2 are cross-sectional views of the flooring according to the invention

3 to 7 is a cross-sectional view of another flooring according to the present invention

8 is a manufacturing process of the flooring according to the present invention

9 is a cross-sectional view of a conventional flooring

(Explanation of symbols for the main parts of the drawing)

10: substrate layer 20: surface layer

21: foam layer 22: non-foaming layer

23: printed layer 24: transparent layer

25: surface treatment layer 26: functional surface treatment layer

30: back layer 31: back foam layer

32: sizing layer 33: back functional layer

The present invention provides a laminated flooring material and a method of manufacturing the laminated flooring material, characterized in that gold or silver is contained in the uppermost layer of the surface layer, the rear functional layer of the rear layer, or the rear functional layer of the uppermost layer and the rear layer of the surface layer. It relates to a manufacturing method.

The flooring material of the present invention has a structure in which a plurality of layers are laminated, and is composed of a surface layer and a backing layer mainly on a base layer, and the surface layer is sequentially a foamed or non-foamed layer, a printed layer, a transparent layer and a surface treatment layer or a functional layer on the base layer. It consists of a surface treatment layer, the back layer consists of a back foaming layer, a sizing layer and a back functional layer. The term "foaming layer" herein refers to a chemically foamed layer.

The layers constituting the surface layer and the back layer may be partially omitted as necessary.

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

1 and 2, the flooring according to the present invention includes a base layer 10, a surface layer 20 on the base layer 10, and a back layer 30 under the base layer 10.

In this case, in FIG. 1, the surface layer 20 includes a foamed layer 21 or a non-foamed layer 22, a printed layer 23, a transparent layer 24, and a functional surface treatment layer 26 on the substrate layer 10. The back layer 30 has a structure in which the back foaming layer 31, the sizing layer 32, and the back functional layer 33 are sequentially formed below the base layer 10.

In FIG. 2, the surface layer 20 is formed by laminating the foam layer 21 or the non-foaming layer 22, the print layer 23, the transparent layer 24, and the surface treatment layer 25 on the substrate layer 10 in order. The back layer 30 has a structure in which the back foam layer 31, the sizing layer 32, and the back functional layer 33 are sequentially formed below the base layer 10.

In the flooring according to the present invention, the surface treatment layer 25, the sizing layer 32, or the back functional layer 33 may be omitted, and the other flooring materials of the present invention in FIGS. 3 to 7 may have one or more of these layers. The layer is omitted.

The other flooring material of the present invention also includes a base layer 10, a surface layer 20 on the base layer 10, and a back layer 30 under the base layer 10.

3, 4, and 5 illustrate a structure in which one of the sizing layer 32 and the back functional layer 33 is omitted, and FIGS. 3 and 4 illustrate flooring in which the sizing layer 32 is omitted. 5 shows the flooring material with the back functional layer 33 omitted.

In FIG. 3, the surface layer 20 is formed by laminating the foam layer 21 or the non-foaming layer 22, the print layer 23, the transparent layer 24, and the surface treatment layer 25 on the substrate layer 10 in order. The back layer 30 is a structure in which the back foam layer 31 and the back functional layer 33 are sequentially formed below the base layer 10.

In FIG. 4, the surface layer 20 is formed by laminating the foam layer 21 or the non-foamed layer 22, the print layer 23, the transparent layer 24, and the functional surface treatment layer 26 on the substrate layer 10 in order. The back layer 30 is a structure in which the back foam layer 31 and the back functional layer 33 are sequentially formed below the base layer 10.

In FIG. 5, the surface layer 20 is formed by laminating the foam layer 21 or the non-foamed layer 22, the print layer 23, the transparent layer 24, and the functional surface treatment layer 26 on the substrate layer 10 in order. The back layer 30 is a structure in which the back foam layer 31 and the sizing layer 32 are sequentially formed below the base layer 10.

6 and 7 omit the two layers of the sizing layer 32, the back surface functional layer 33 and the surface treatment layer 25, Figure 6 is a surface treatment layer 25 and back surface functional layer 33 The flooring material is omitted, and FIG. 7 shows the flooring material in which the sizing layer 32 and the back functional layer 33 are omitted.

In FIG. 6, the surface layer 20 has a structure in which the foam layer 21 or the non-foaming layer 22, the print layer 23, and the transparent layer 24 are stacked on the base layer 10 in turn, and the back layer 30 is formed. The back foam layer 31 and the sizing layer 32 are formed in order under the base material layer 10 in order.

In FIG. 7, the surface layer 20 is formed by laminating the foam layer 21 or the non-foaming layer 22, the print layer 23, the transparent layer 24, and the functional surface treatment layer 26 on the substrate layer 10 in order. The back layer 30 is a structure in which the back foam layer 31 is formed below the base layer 10.

In FIG. 8, when looking at such a flooring manufacturing method which concerns on this invention, the base material layer 10 which gives the dimensional stability of a product is manufactured first.

The base layer 10 is gelled by heating a liquid composition on a substrate such as paper to a thickness of 0.2 to 0.5 mm and then heating at 150 to 200 ° C. at a speed of 10 to 60 m / min. For 30 to 150 seconds. Let's do it. The gelation turns into a solid composition to form the base layer 10.

At this time, the liquid composition for forming the base layer 10 is 20 to 50 parts by weight of dioctylphthalate as a plasticizer, 15 to 50 parts by weight of butylbenzylphthalate, and stabilized barium-a as 100 parts by weight of vinyl chloride resin having a polymerization degree of 1000 to 2000. 1 to 5 parts by weight of the linking compound, 1 to 10 parts by weight of titanium oxide as a pigment, 50 to 170 parts by weight of calcium bicarbonate as a filler, and other additives, using epoxy resin (soymilk) for long-term low-temperature reinforcement. ) 1 to 5 parts by weight of the mixture was prepared in a sol (Sol) state.

On this base material layer 10, the foam layer 21 which gives a cushion feeling is formed, or the non-foaming layer 22 which gives the hardness of a product is formed.

The foam layer 21 is knife coated with a liquid composition for forming the foam layer 21 on the base layer 10 to a thickness of 0.1 to 0.3mm and then 1 to at a speed of 10 to 50 m / min at 150 to 210 ° C. Heat for 2 minutes to gel. Gelling turns to a solid composition to form the foam layer 21.

The liquid composition for forming the foam layer 21 is 30 to 60 parts by weight of dioctylphthalate as a primary plasticizer and 10 to 20 parts by weight of paraffinic compound as a secondary plasticizer in 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1000 to 2000. , 1 to 3 parts by weight of azodicarbonamide as a foaming agent, 0.5 to 1 parts by weight of zincation as a foaming accelerator, 0.5 to 1 parts by weight of barium-zinc compound as a foam stabilizer, 1 to 5 parts by weight of titanium oxide as a pigment, and a bicarbonate as a filler. 30 to 150 parts by weight of calcium and other additives 0.2 to 1.5 parts by weight of a viscosity reducing agent are mixed in a sol state.

The non-foaming layer 22 is knife coated with a liquid composition forming the non-foaming layer 22 on the base layer 10 to a thickness of 0.1 to 0.3 mm, and then at a speed of 10 to 50 m / min at 150 to 210 ° C. Gel for heating for 30-180 seconds. Gelling turns to a solid composition to form the non-foaming layer 22.

The liquid composition forming the non-foaming layer 22 is 30 to 60 parts by weight of dioctylphthalate as the primary plasticizer and 100 to 20 parts by weight of the paraffinic compound as the secondary plasticizer in 100 parts by weight of the vinyl chloride resin having a polymerization degree of 1000 to 2000. 1, 3 parts by weight of a barium-zinc compound, a heat stabilizer, and 1 to 3 parts by weight of an epoxy resin (no need for a curing agent because soymilk is used) for other long-term low-temperature heat reinforcement. will be.

The print layer 23 is formed by printing a pattern on the foamed layer 21 or the non-foamed layer 22 by gravure printing, offset-printing or screen printing.

The transparent layer 24 is formed on the printed layer 23 so as to protect the pattern of the printed layer 23.

The transparent layer 24 is knife coated with a liquid composition forming the transparent layer 24 on the print layer 23 to a thickness of 0.1 to 0.5 mm, and then 30 to 150 seconds at a speed of 10 to 50 m / min at 130 to 230 ° C. Heated to gel. Gelling turns to a solid composition to form a transparent layer 24.

The liquid composition for forming the transparent layer 24 includes 15 to 30 parts by weight of dioctylphthalate as a primary plasticizer, 10 to 20 parts by weight of paraffinic compound as a secondary plasticizer, and 100 parts by weight of vinyl chloride resin having a polymerization degree of 1000 to 2000. 2 to 7 parts by weight of the phosphorus barium-zinc compound and other additives are made in a sol state by mixing 1 to 5 parts by weight of an epoxy resin for long-term low temperature heat-resistant reinforcement (no need for a curing agent because soymilk is used).

Next, the backside foam layer 31 which gives a cushioning feeling under the base material layer 10 is formed.

The backside foaming layer 31 is coated with a liquid composition forming the backside foaming layer 31 on the back surface of the substrate layer 10 to a thickness of 0.2 to 0.7 mm, and then 5 to 30 m / min. Gel at speed for 30-180 seconds. When gelation is carried out to turn into a solid composition to form the back-foaming layer 31.

The liquid composition forming the back foaming layer 31 is 20 to 80 parts by weight of dioctylphthalate as a primary plasticizer, 100 to 20 parts by weight of butylbenzylphthalate, and secondary plasticizer at 100 parts by weight of vinyl chloride resin having a polymerization degree of 500 to 2000. 5 to 10 parts by weight of paraffin compound, 1 to 20 parts by weight of organic pigment, 1 to 4 parts by weight of azodicarbonamide, which is a blowing agent, 1 to 4 parts by weight of zinc accelerator, and 0.1 to 3 parts by weight of barium-zinc compound, which is a foam stabilizer. In addition, 0.2-1.0 weight part of foaming cell regulator barium-zinc type compounds, 1-5 weight part of titanium oxides which are pigments, and 5-100 weight part of calcium bicarbonates of fillers are mixed, and it is made into the sol state.

A sizing layer 32 for imparting hardness of the product is formed under the backside foaming layer 31.

The sizing layer 32 is knife coated with a liquid composition forming the sizing layer 32 on the back surface of the back foaming layer 31 to a thickness of 0.5 to 1.0 mm, and then at a speed of 10 to 50 m / min at 170 to 250 ° C. Heated for 30 to 180 seconds to gel, followed by foaming. Gelling and foaming result in a solid phase composition to form a sizing layer 32.

The liquid composition for forming the sizing layer 32 includes 40 to 60 parts by weight of dioctylphthalate, a primary plasticizer, and 100 to 20 parts by weight of butylbenzylphthalate, 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1000 to 2000, 2, 2, and 4 -3 to 10 parts by weight of -trimethyl-1,3-pentanediol diisobutyrate, 5 to 15 parts by weight of a paraffinic compound as a secondary plasticizer, 1 to 20 parts by weight of titanium oxide as a pigment, and a barium-zinc compound 1 to 1 as heat stabilizer. 5 parts by weight, 1 to 150 parts by weight of calcium bicarbonate as a filler, and 1 to 5 parts by weight of ordinary epoxy resin for reinforcing low temperature heat resistance as long as other additives (no need for curing agent because soy milk is used) and charcoal for color Or 1 to 20 parts by weight of an organic pigment is mixed into a sol state.

The back functional layer 33 is formed on the back surface of the sizing layer 32.

There are three types of liquid compositions for forming the back functional layer 33: oil-soluble, water-soluble, and vinyl chloride resin sol.

First, when the oil-soluble liquid composition is used, the oil-soluble liquid composition is coated on the back side of the sizing layer 32 at a speed of 15 to 60 m / min. With a thickness of 0.02 to 0.2 mm and then dried at 40 to 150 ° C. Drying turns to a solid composition to form the back functional layer 33.

The oil-soluble liquid composition comprises 10 to 13 parts by weight of VYNS-3 (United States Union Carbide Co., Ltd.), a copolymer of 90% vinyl chloride and 10% vinyl acetate, and acrylic resin (40%) in methyl ethyl ketone (60%). 7 ~ 9 parts by weight of acrylic resin A-101 (Acrylic Resin A-101: Mitsubishi Rayon, Japan), 70 ~ 80 parts by weight of methyl ethyl ketone, cellulose acetate butyrate as an antiblocking agent (Cellulose Acetate Butyrate) A mixture of 0.1 to 5 parts by weight, 2 to 3 parts by weight of a barium-zinc compound, a heat stabilizer, and gold or silver, containing 40 to 60% by weight of gold or silver in the composition.

Secondly, in the case of using the water-soluble liquid composition, the water-soluble liquid composition is coated on the back side of the sizing layer 32 at a speed of 15 to 60 m / min. With a thickness of 0.02 to 0.2 mm and then dried at 40 to 120 ° C. Drying turns to a solid composition to form the back functional layer 33.

The water-soluble liquid composition includes 20-30 parts by weight of water, 20-40 parts by weight of isopropyl alcohol, and 3-4 parts of aqueous silica having a size of 2 μm or less in 15-25 parts by weight of water-soluble acrylic resin having a molecular weight of 80,000-100,000. 5 weight part and gold or silver were mixed and 40-60 weight% of gold or silver was contained in this composition.

Thirdly, in the case of the vinyl chloride resin sol, a knife coating of the composition of the vinyl chloride resin sol on the back surface of the sizing layer 32 to a thickness of 0.05 to 0.3 mm is carried out, and at a speed of 10 to 50 m / min at 130 to 230 ° C. Gel for heating for 20 to 150 seconds. Gelling turns to a solid composition to form the back functional layer 33.

The composition of the vinyl chloride resin sol includes 20 to 27 parts by weight of dioctylphthalate as a primary plasticizer and 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000 to 3000, and 2,2,4-trimethyl-1,3-pentane as a secondary plasticizer. 5 to 8 parts by weight of diol diisobutyrate, 8 to 12 parts by weight of paraffinic compound, 2 to 3 parts by weight of barium-zinc compound, which is a heat stabilizer, and other additives. No hardener required) 20 to 5 parts by weight of 2,2,4-trimethyl-1,3-pentanedioldiisobutyrate and 20 parts by weight of vinyl chloride resin sol made by mixing 1 to 5 parts by weight Silver is mixed and 40-60 weight% of gold or silver is contained in this composition.

The gold or silver used herein has a purity of 98% or more, and in order to have a good connection with each other and to increase the surface area, gold powder or silver powder having a small particle size and plate structure is preferable.

In order to reduce the static electrification voltage to prevent static electricity, it is most preferable that 40 to 60 wt% of gold or silver is contained in the oil-soluble or water-soluble liquid composition forming the back functional layer 33, and after the oil-soluble or water-soluble liquid composition is applied It is preferable to contain 60 to 80% by weight of gold or silver in the dried, layered solid composition. If the content of gold or silver is too small, the effect is insufficient, and if too much, the effect is reduced due to precipitation and poor adhesion.

In addition, in order to obtain the antimicrobial and insect repellent effect of the surface layer 20, it is most preferable that 0.1 to 3% by weight of gold or silver is contained in the oil-soluble or water-soluble liquid composition for forming the functional surface treatment layer 26, and the oil-soluble or water-soluble liquid composition It is preferable that 0.11 to 3.4% by weight of gold or silver is contained in the solid composition constituting the dried and then applied layer, and in order to obtain the antibacterial and insect repelling effect of the back layer 30, the usefulness of forming the back functional layer 33 or It is preferable that 40-60 weight% of gold or silver is contained in a water-soluble liquid composition, and it is preferable that 60-80 weight% of gold or silver is contained in the solid composition which is dried and layered after application of an oil-soluble or water-soluble liquid composition.

In order to obtain the electromagnetic wave shielding effect, it is most preferable that 40 to 60% by weight of gold or silver is contained in the oil-soluble or water-soluble liquid composition forming the back functional layer 33, and after the oil-soluble or water-soluble liquid composition is applied, the layer is dried. It is preferable that 60-80 weight% of gold or silver is contained in the solid composition which comprises. In the liquid composition of the vinyl chloride resin sol forming the back functional layer 33, it is most preferable that 40 to 60 wt% of gold or silver is contained, and the liquid composition of the vinyl chloride resin sol is applied and then dried to form a layer. It is preferable that 45-75 weight% of gold or silver is contained in a solid composition.

Finally, a surface treatment layer 25 or a functional surface treatment layer 26 is formed on the transparent layer 24 to maintain surface strength.

The surface treatment layer 25 is a liquid composition that forms the surface treatment layer 25 on the transparent layer 24, that is, 40 parts by weight of a urethane acrylate oligomer, 2-functional monomer for dilution, viscosity adjustment and adhesion increase of the oligomer. 7 to 11 parts by weight of hydroxypropyl acrylate, 34 to 43 parts by weight of 1,6-hexanediol diacrylate as a bifunctional monomer, 0 to 5 parts by weight of trimethylolpropaneethoxytriacrylate as a trifunctional monomer and a photoinitiator A composition made by mixing 4 parts by weight of acetophenone, 1 part by weight of reactive silicone as an additive, and 5 parts by weight of silica as a mating agent, was air knife coated at a thickness of 20 μm at a speed of 20 m / min. It is hardened using 4-7 medium pressure mercury lamps of in output. Curing turns to a solid composition to form the surface treatment layer 25.

Alternatively, gold or silver is added to the liquid composition forming the surface treatment layer 25 to contain 0.1 to 3 wt% of gold or silver to form the functional surface treatment layer 26.

Example 1 (floor for preventing static electricity generation: Figure 2)

Example 1 relates to a flooring material having an effect of preventing the occurrence of frictional electrification due to excellent antistatic generation. The manufacturing process is as follows.

36 parts by weight of dioctylphthalate as a plasticizer, 22 parts by weight of butylbenzylphthalate, 2.5 parts by weight of barium-zinc-based compound as a stabilizer on 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1700 on substrates such as glass fibers, imitation paper, minerals, and paper. A composition made by mixing 2 parts by weight of titanium phosphate, 140 parts by weight of calcium bicarbonate as a filler, and 3 parts by weight of an epoxy resin for reinforcing low temperature heat resistance for a long period of time (no need for a curing agent because soymilk is used) is 0.38 mm thick. After knife coating with a gel at 160 ℃ for 1 minute 30 seconds at a rate of 40 m / min. To prepare a substrate layer (10).

31 parts by weight of dioctylphthalate as a primary plasticizer, 19 parts by weight of paraffinic compound as a secondary plasticizer and 2.5 parts by weight of barium-zinc compound as a heat stabilizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the base layer 10. , Other additives for the long-term low temperature heat-resistant reinforcement epoxy resin (soymilk is used, so no curing agent required) 3 parts by weight of the composition of the knife coating to 0.2mm thickness of 30 m / min. 1 minute 30 seconds at the speed of gelling to form a non-foamed layer 22, and then print the pattern on the non-foamed layer 22 by gravure printing, offset printing, screen printing, etc. to form a printed layer (23) After drying, 21 parts by weight of dioctylphthalate as a primary plasticizer, 15 parts by weight of paraffinic compound as a secondary plasticizer and 100 parts by weight of barium-zinc as a heat stabilizer were placed on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the printed layer 23. Compound 3 weight And other additives, a composition made by mixing 3 parts by weight of an epoxy resin for long-term low temperature heat-resistant reinforcement (no need for a curing agent because it uses soymilk), and then knife-coated to a thickness of 0.2 mm and then 20 m / min. The gel was formed by heating at a speed for 1 minute and 20 seconds to form a transparent layer 24.

40 parts by weight of dioctylphthalate as a primary plasticizer, 10 parts by weight of butylbenzyl phthalate, 8 parts by weight of a paraffinic compound as a secondary plasticizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the back surface of the base layer 10, 10 parts by weight of an organic pigment, 2 parts by weight of azodicarbonamide as a blowing agent, 1 part by weight of a zinc accelerator for foaming agent, 1 part by weight of a barium-zinc compound as a foam stabilizer, 0.3 part by weight of a barium-zinc compound as a foaming agent, oxidation of a pigment The composition prepared by mixing 2 parts by weight of titanium and 60 parts by weight of calcium bicarbonate as a filler was knife coated to a thickness of 0.5 mm, and then gelled by heating at 200 ° C. at a rate of 20 m / min. For 1 minute and 30 seconds to form a back foam (31). ) 50 parts by weight of the primary plasticizer dioctylphthalate, 14 parts by weight of butylbenzylphthalate, 2,2,4-trimethyl- on 100 parts by weight of vinyl chloride resin having a polymerization degree of 1700 on the back surface of the back foaming layer 31. 1,3-pentanediolimisobuty Yite 5 parts by weight, 10 parts by weight of a paraffinic compound as a secondary plasticizer, 8 parts by weight of titanium oxide as a pigment, 1 part by weight of barium-zinc compound as a heat stabilizer, 120 parts by weight of calcium bicarbonate as a filler, long-term low temperature heat resistance as an additive Epoxy resin for reinforcement (no need for curing agent because it uses soy milk) 3 parts by weight of charcoal or organic pigments mixed with 6 parts by weight of organic pigment for a knife-coated 0.2mm thick and 20 m at 200 ℃ gel for 90 seconds at a rate of / min., followed by foaming to form a sizing layer 32. VW is a copolymer of 90% vinyl chloride and 10% vinyl acetate on the back of the sizing layer 32. S-3 11.78 parts by weight of acrylic resin (40%) dissolved in methyl ethyl ketone (60%), acrylic resin A-101 8 parts by weight, methyl ethyl ketone 76 parts by weight, cellulose acetate butyrate as an antiblocking agent 2 parts by weight, a composition containing 2 parts by weight of a barium-zinc compound as a heat stabilizer and 70 parts by weight of silver powder was coated to a thickness of 0.02 mm, and then gelled by heating to 40 to 150 ° C. at a speed of 25 m / min. Layer 33 was formed.

Finally, 40 parts by weight of the urethane acrylate oligomer on the transparent layer 24, 10 parts by weight of 2-hydroxypropyl acrylate which is a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer, 1,6-hexane as a bifunctional monomer A composition made by mixing 35 parts by weight of diol diacrylate, 5 parts by weight of trimethylolpropaneethoxytriacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, 1 part by weight of reactive silicone as an additive, and 5 parts by weight of silica as a mating agent. Is air knife coated to a thickness of 20 μm at a speed of 20 m / min. And then cured using six medium pressure mercury lamps with a 300 watt / in output to form a surface treatment layer 25. Made a floor covering of 1.

Comparative Example 1

Except for the back functional layer 33 of Example 1, the flooring was made as in Example 1.

Example 2 (Antibacterial, insect repellent flooring material: Figure 1)

Example 2 relates to a flooring material having excellent antibacterial and insect repellent effects, and the manufacturing process is as follows.

36 parts by weight of dioctylphthalate as a plasticizer, 22 parts by weight of butylbenzylphthalate, 2.5 parts by weight of barium-zinc-based compound as a stabilizer on 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1700 on substrates such as glass fibers, imitation paper, minerals, and paper. A composition made by mixing 2 parts by weight of titanium phosphate, 140 parts by weight of calcium bicarbonate as a filler, and 3 parts by weight of an epoxy resin for reinforcing low temperature heat resistance for a long period of time (no need for a curing agent because soymilk is used) is 0.38 mm thick. After knife coating with a gel at 160 ℃ for 1 minute 30 seconds at a rate of 40 m / min. To prepare a substrate layer (10).

31 parts by weight of dioctylphthalate as a primary plasticizer, 19 parts by weight of paraffinic compound as a secondary plasticizer and 2.5 parts by weight of barium-zinc compound as a heat stabilizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the base layer 10. , Other additives for the long-term low temperature heat-resistant reinforcement epoxy resin (soymilk is used, so no curing agent required) 3 parts by weight of the composition of the knife coating to 0.2mm thickness of 30 m / min. 1 minute 30 seconds at the speed of gelling to form a non-foamed layer 22, and then print the pattern on the non-foamed layer 22 by gravure printing, offset printing, screen printing, etc. to form a printed layer (23) After drying, 21 parts by weight of dioctylphthalate as a primary plasticizer, 15 parts by weight of paraffinic compound as a secondary plasticizer and 100 parts by weight of barium-zinc as a heat stabilizer were placed on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the printed layer 23. Compound 3 weight And other additives, a composition made by mixing 3 parts by weight of an epoxy resin for long-term low temperature heat-resistant reinforcement (no need for a curing agent because it uses soymilk), and then knife-coated to a thickness of 0.2 mm and then 20 m / min. The gel was formed by heating at a speed for 1 minute and 20 seconds to form a transparent layer 24.

40 parts by weight of dioctylphthalate as a primary plasticizer, 10 parts by weight of butylbenzyl phthalate, 8 parts by weight of a paraffinic compound as a secondary plasticizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the back surface of the base layer 10, 10 parts by weight of an organic pigment, 2 parts by weight of azodicarbonamide as a blowing agent, 1 part by weight of a zinc accelerator for foaming agent, 1 part by weight of a barium-zinc compound as a foam stabilizer, 0.3 part by weight of a barium-zinc compound as a foaming agent, oxidation of a pigment The composition prepared by mixing 2 parts by weight of titanium and 60 parts by weight of calcium bicarbonate as a filler was knife coated to a thickness of 0.5 mm, and then gelled by heating at 200 ° C. at a rate of 20 m / min. For 1 minute and 30 seconds to form a back foam (31). ) 50 parts by weight of the primary plasticizer dioctylphthalate, 14 parts by weight of butylbenzylphthalate, 2,2,4-trimethyl- on 100 parts by weight of vinyl chloride resin having a polymerization degree of 1700 on the back surface of the back foaming layer 31. 1,3-pentanediolimisobuty Yite 5 parts by weight, 10 parts by weight of a paraffinic compound as a secondary plasticizer, 8 parts by weight of titanium oxide as a pigment, 1 part by weight of barium-zinc compound as a heat stabilizer, 120 parts by weight of calcium bicarbonate as a filler, long-term low temperature heat resistance as an additive Epoxy resin for reinforcement (no need for curing agent because it uses soy milk) 3 parts by weight of charcoal or organic pigments mixed with 6 parts by weight of organic pigment for a knife-coated 0.2mm thick and 20 m at 200 ℃ gel for 90 seconds at a rate of / min., followed by foaming to form a sizing layer 32. VW is a copolymer of 90% vinyl chloride and 10% vinyl acetate on the back of the sizing layer 32. S-3 11.78 parts by weight of acrylic resin (40%) dissolved in methyl ethyl ketone (60%), 8 parts by weight of acrylic resin A-101, 78 parts by weight of methyl ethyl ketone, cellulose acetate butyrate as an antiblocking agent 2 parts by weight of the composition and 70 parts by weight of silver powder was coated with a thickness of 0.02mm and then coated at a speed of 25m / min. And dried at 40 ~ 150 ℃ to form a back functional layer (33).

Finally, 40 parts by weight of the urethane acrylate oligomer on the transparent layer 24, 10 parts by weight of 2-hydroxypropyl acrylate which is a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer, 1,6-hexane as a bifunctional monomer 35 parts by weight of diol diacrylate, 5 parts by weight of trimethylol propane ethoxytriacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, 1 part by weight of reactive silicone as an additive, 5 parts by weight of silica as a mating agent and 0.2 parts by weight of silver powder The mixed composition was air knife coated to a thickness of 20 μm at a speed of 20 m / min. And then cured using six medium pressure mercury lamps with a 300 watt / in output to form a functional surface treatment layer 26. The bottom ash of Example 2 shown in was made.

Comparative Example 2

In the functional surface treatment layer 26 of Example 2, except for the silver powder and the back functional layer 33, except for the flooring was made as in Example 2.

Example 3 (Electromagnetic Shielding Flooring: Fig. 3)

Example 3 relates to a flooring material having an electromagnetic shielding effect of the product itself, and the manufacturing process is as follows.

36 parts by weight of dioctylphthalate as a plasticizer, 22 parts by weight of butylbenzylphthalate, 2.5 parts by weight of barium-zinc-based compound as a stabilizer on 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1700 on substrates such as glass fibers, imitation paper, minerals, and paper. A composition made by mixing 2 parts by weight of titanium phosphate, 140 parts by weight of calcium bicarbonate as a filler, and 3 parts by weight of an epoxy resin for reinforcing low temperature heat resistance for a long period of time (no need for a curing agent because soymilk is used) is 0.38 mm thick. After knife coating with a gel at 160 ℃ for 1 minute 30 seconds at a rate of 40 m / min. To prepare a substrate layer (10).

31 parts by weight of dioctylphthalate as a primary plasticizer, 19 parts by weight of paraffinic compound as a secondary plasticizer and 2.5 parts by weight of barium-zinc compound as a heat stabilizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the base layer 10. , Other additives for the long-term low temperature heat-resistant reinforcement epoxy resin (soymilk is used, so no curing agent required) 3 parts by weight of the composition of the knife coating to 0.2mm thickness of 30 m / min. 1 minute 30 seconds at the speed of gelling to form a non-foamed layer 22, and then print the pattern on the non-foamed layer 22 by gravure printing, offset printing, screen printing, etc. to form a printed layer (23) After drying, 21 parts by weight of dioctylphthalate as a primary plasticizer, 15 parts by weight of paraffinic compound as a secondary plasticizer and 100 parts by weight of barium-zinc as a heat stabilizer were placed on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the printed layer 23. Compound 3 weight And other additives, a composition made by mixing 3 parts by weight of an epoxy resin for long-term low temperature heat-resistant reinforcement (no need for a curing agent because it uses soymilk), and then knife-coated to a thickness of 0.2 mm and then 20 m / min. The gel was formed by heating at a speed for 1 minute and 20 seconds to form a transparent layer 24.

40 parts by weight of dioctylphthalate as a primary plasticizer, 10 parts by weight of butylbenzyl phthalate, 8 parts by weight of a paraffinic compound as a secondary plasticizer, on 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the back surface of the base layer 10, 10 parts by weight of an organic pigment, 2 parts by weight of azodicarbonamide as a blowing agent, 1 part by weight of a zinc accelerator for foaming agent, 1 part by weight of a barium-zinc compound as a foam stabilizer, 0.3 part by weight of a barium-zinc compound as a foaming agent, oxidation of a pigment The composition made by mixing 2 parts by weight of titanium and 60 parts by weight of calcium bicarbonate as a filler was knife coated to a thickness of 0.5 mm, gelated at 200 ° C. at a speed of 20 m / min. For 1 minute and 30 seconds, and then foamed on the back side. After forming the layer 31, 29 parts by weight of dioctylphthalate as a primary plasticizer and 100 parts by weight of paraffinic compound as a secondary plasticizer in 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1700 on the back surface of the back foaming layer 31. , 2,4-trimethyl-1,3- 10 parts by weight of tandiol diisobutyrate, 2.5 parts by weight of a barium-zinc compound that is a heat stabilizer, and other additives. 3 parts by weight of epoxy resin for long-term low-temperature heat reinforcement (no need for curing agent because soymilk is used) 0.12mm of a composition in which 5 parts by weight of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate and 20 parts by weight of silver powder were mixed with 20 parts by weight of a vinyl chloride resin composition prepared by mixing 6 parts by weight of charcoal or organic pigment. Knife coating to a thickness of and then gelled by heating for 1 minute 20 seconds at a rate of 20 m / min. At 200 ℃ to form a back functional layer (33).

Finally, 40 parts by weight of the urethane acrylate oligomer on the transparent layer 24, 10 parts by weight of 2-hydroxypropyl acrylate which is a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer, 1,6-hexane as a bifunctional monomer A composition made by mixing 35 parts by weight of diol diacrylate, 5 parts by weight of trimethylol propaneethoxy triacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, 1 part by weight of reactive silicone as an additive, and 5 parts by weight of silica as a mating agent. Was air knife coated to a thickness of 20 μm at a speed of 20 m / min. And then cured using six medium pressure mercury lamps of 300 watt / in output to form a surface treatment layer 25. The embodiment shown in FIG. 3 made flooring.

Comparative Example 3

Except for the back functional layer 33 of Example 3, the flooring was made as in Example 3.

Flooring according to the present invention is a flooring material having excellent antistatic effect, antibacterial and antiseptic effect and electromagnetic shielding effect.

First, the effect of preventing the occurrence of static electricity. Table 1 is a measure of the antistatic effect of the flooring material of Example 1 according to the present invention, the method of triboelectric chargeability (KS K 0555, method B) for measuring the large voltage generated by rubbing with a friction cloth while rotating the test piece It was measured as, using a cotton cloth at 20 ℃, 65% RH, 400RPM.

As a result, the frictional voltage generated in the flooring material of Example 1 was 20 volts, which was half the level of 40 volts generated in the conventional flooring material of Comparative Example 1. That is, the flooring material of Example 1 shows that the frictional voltage reduction effect is superior to the flooring material of Comparative Example 1.

Testing institution Test Methods Example 1 Comparative Example 1 Korea Yarn Textile Testing Institute KS K 0555, B method 20 volt 40 volt

Next, look at the antibacterial, insect repellent effect. Table 2 and Table 3 are the results of measuring the antibacterial, insect repellent effect of the flooring material of Example 2.

Table 2 shows the antimicrobial effect of the flooring material of Example 2 and the flooring material of Comparative Example 2 by measuring the number of bacteria after stationary culture at 25 ° C. for 24 hours using a pressure-adhesive method at the Korea Yarn Textile Research Institute. coli ATCC 25922) and strain-2 (Pseudomonas aaeruginosa ATCC 27853), and the bottom ash of Comparative Example 2 shows a reduction rate of 92.8% for strain-1, 85.8% for strain-2, The bottom ash of 2 shows a high reduction rate of 99.9% for both strain-1 and strain-2.

Therefore, the flooring material of Example 2 shows that the antibacterial effect is superior to the flooring material of Comparative Example 2.

Testing institution Test unit Example 2 Comparative Example 2 Functional Surface Treatment Layer Back Functional Layer Korea Yarn Textile Testing Institute % Reduction Strain-1 99.9% 99.9% 92.8% Strain-2 99.9% 99.9% 85.8%

Table 3 shows the insect repellent effect of the flooring material of Example 2 at the Korea Consumer Science Research Center, which was measured by the cockroach repellency test. First, a standard sample and a test sample (10 cm × 10 cm) were mounted in a test box. The upper part of the plywood is installed with a device to hide the cockroaches easily concealed, and after feeding a certain number of cockroach adults as siege insects and supplying water and food, the cockroach to avoid the cockroach by observing the state It is a quantitative representation of the degree according to gender. Test specimens were separated into four test boxes of 20 individuals, and the evasion rate of the specimens adapted to the flooring materials of Example 2 and Comparative Example 2 and the specimens which did not undergo the adaptive training process were examined for 1-2 days.

As a result, the flooring material of Example 2 compared to the flooring rate of the flooring material of Comparative Example 2 showed 1.89 times the evasion rate before the adaptive training, and also shows a high repellency rate of 1.82 times or more after the adaptive training, and also shows excellent insect repellent effect.

Testing institution Test unit Example 2 Functional Surface Treatment Layer Back Functional Layer Korea Consumer Science Research Center Number of individuals Before adaptation training 1.89 1.89 After adaptation training 1.82 1.85

Next, see the electromagnetic shielding effect. Table 4 shows the electromagnetic wave shielding effect of the flooring material of Example 3 at the Korea Research Institute of Standards and Science, when the electromagnetic wave shielding material is present for the same incident power under a temperature of 22 ± 2 ° C. and a humidity of 55% RH. This is to check the reception power ratio when not.

The results showed that the flooring material of Comparative Example 3 had no effect at all, whereas the flooring material of Example 3 had 20 decibels, that is, 99% of the decibel value in terms of percent. It can be seen that there is an electromagnetic shielding effect.

Shielding Effect (%) = (1-10 ^{-A / 10} ) × 100

(Where A = decibel value)

Testing institution Example 3 Comparative Example 3 Korea Research Institute of Standards and Science 20 dB (99%) 0

Claims (22)

In the laminated flooring which consists of the surface layer 20 which consists of several layers from the top, the base material layer 10, and the back layer 30 which consists of several layers, the uppermost layer of the surface layer 20, and the back function of the back layer 30 Laminate flooring, characterized in that the gold or silver powder contained in the top functional layer 33 of the layer 33 or the top layer and the back layer 30. The surface layer 20 is a foam layer 21 or a non-foaming layer 22, a printing layer 23, a transparent layer 24 and a functional surface treatment layer 26 in order from the base layer 10 A laminated flooring material comprising gold powder or silver powder, wherein the back layer 30 is a back foam layer 31, a sizing layer 32, and a back functional layer 33 in order from the base layer 10. The surface layer 20 is the foam layer 21 or the non-foaming layer 22, the printing layer 23, the transparent layer 24, and the surface treatment layer 25 in order from the base material layer 10, and Laminate flooring, characterized in that the layer 30 is a back powder layer 31, the sizing layer 32 and the back functional layer 33, in order from the base layer 10, containing gold powder or silver powder. The surface layer 20 is the foam layer 21 or the non-foaming layer 22, the printing layer 23, the transparent layer 24, and the surface treatment layer 25 in order from the base material layer 10, and Laminated flooring material, characterized in that the gold powder or silver powder, which is the back foaming layer (31), the back functional layer (33) in order from the base layer (10). The surface layer 20 is a foam layer 21 or a non-foaming layer 22, a printing layer 23, a transparent layer 24 and a functional surface treatment layer 26 in order from the base layer 10 The laminated flooring material characterized by containing gold powder or silver powder which is a back foaming layer 31 and a back functional layer 33 in order from the back layer 30 to the base material layer 10. The surface layer 20 is a foam layer 21 or a non-foaming layer 22, a printing layer 23, a transparent layer 24 and a functional surface treatment layer 26 in order from the base layer 10 The laminated flooring material characterized by containing gold powder or silver powder which is a back foaming layer 31 and a sizing layer 32 from a base material layer 10 in order. The surface layer 20 is a foam layer 21 or a non-foaming layer 22, a printing layer 23 and a transparent layer 24 in order from the base layer 10 and the back layer 30 is a base layer Laminated flooring material characterized by containing gold powder or silver powder which are the back-foaming layer 31 and the sizing layer 32 in order from (10). The surface layer 20 is a foam layer 21 or a non-foaming layer 22, a printing layer 23, a transparent layer 24 and a functional surface treatment layer 26 in order from the base layer 10 Laminated flooring material, characterized in that the back layer 30, gold powder or silver powder, which is the back foam layer 31 under the base layer 10. The method according to claim 1, 2, 3, 4 or 5, wherein gold or silver powder is applied to the solid composition which is dried and layered after the oil-soluble or water-soluble liquid composition is applied to the back functional layer 33. 60 to 80% by weight of the laminate flooring characterized in that it has an effect of suppressing the generation of static electricity. The solid state composition according to claim 1, 2, 5, 6, 7, or 8, wherein the oil-soluble or water-soluble liquid composition is applied to the uppermost layer of the surface layer 20, and then dried to form a layered solid composition. Laminated flooring, characterized in that containing 0.11 to 3.4% by weight of gold powder or silver powder to have antibacterial and insect repellent effects. The method according to claim 1, 2, 3, 4 or 5, wherein gold or silver powder is applied to the solid composition which is dried and layered after the oil-soluble or water-soluble liquid composition is applied to the back functional layer 33. 60 to 80% by weight of the laminated flooring characterized in that it has an antibacterial, insect repellent effect. The method according to claim 1, 2, 3, 4 or 5, wherein gold or silver powder is applied to the solid composition which is dried and layered after the oil-soluble or water-soluble liquid composition is applied to the back functional layer 33. 60 to 80% by weight of the laminate flooring characterized in that it has an electromagnetic shielding effect. The method according to claim 1, 2, 3, 4, or 5, wherein the back functional layer 33 is coated with a liquid composition of a vinyl chloride resin sol, and then dried to form a layered solid powder or gold powder. A laminated flooring material comprising 45 to 75% by weight of silver powder, which has an electromagnetic shielding effect. After the foamed layer 21 or the non-foamed layer 22 is formed on the base layer 10, the printed layer 23 is formed on the foamed layer 21 or the non-foamed layer 22, and then on the printed layer 23. The transparent layer 24 is formed, and a backside foaming layer 31 is formed on the back surface of the base layer 10, and then a sizing layer 32 is formed on the backside of the backside foaming layer 31, and then on the backside of the sizing layer 32. Coating the liquid composition containing gold powder or silver powder to form the back functional layer 33 and the surface treatment layer 25 on the transparent layer 24 or the liquid composition containing gold powder or silver powder on the transparent layer 24. Coating to form a functional surface treatment layer (26) to produce a laminate flooring containing gold powder or silver powder. The 2-hydroxypropyl acrylate 7 according to claim 14, wherein the liquid composition forming the functional surface treatment layer 26 is 40 parts by weight of a urethane acrylate oligomer, a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer. -11 parts by weight, 34 to 43 parts by weight of 1,6-hexanediol diacrylate as a bifunctional monomer, 0 to 5 parts by weight of trimethylolpropaneethoxytriacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, A liquid composition made by mixing 1 part by weight of reactive silicone as an additive, 5 parts by weight of silica as a mating agent and gold powder or silver powder, and the liquid composition forming the back functional layer 33 is 90% vinyl chloride and vinyl acetate. Acrylic water made by dissolving 10 to 13 parts by weight of VYNS-3 (US Union Carbide Co., Ltd.), a 10% copolymer, and an acrylic resin (40%) in methyl ethyl ketone (60%). A-101 (Acrylic Resin A-101: Japan Mitsubishi Rayon Co., Ltd.) 7 to 9 parts by weight, methyl ethyl ketone 70 to 80 parts by weight, blocking agent cellulose acetate butyrate 0.1 to A method for producing a laminated flooring material containing gold powder or silver powder, which is an oil-soluble liquid composition prepared by mixing 5 parts by weight of a barium-zinc compound, which is a heat stabilizer, and 2-3 parts by weight of a barium-zinc compound. The 2-hydroxypropyl acrylate 7 according to claim 14, wherein the liquid composition forming the functional surface treatment layer 26 is 40 parts by weight of a urethane acrylate oligomer, a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer. -11 parts by weight, 34 to 43 parts by weight of 1,6-hexanediol diacrylate as a bifunctional monomer, 0 to 5 parts by weight of trimethylolpropaneethoxytriacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, A liquid composition made by mixing 1 part by weight of reactive silicone as an additive, 5 parts by weight of silica as a mating agent and gold powder or silver powder, wherein the liquid composition forming the back functional layer 33 has a molecular weight of 80,000 to 100,000. 15 to 25 parts by weight of acrylic resin, 20 to 30 parts by weight of water, 20 to 40 parts by weight of isopropyl alcohol, 3 to 5 parts by weight of aqueous silica having a size of 2 μm or less, and gold or silver powder Made by mixing aqueous liquid composition is a method for producing a silver powder or a geumbun containing laminate flooring. The 2-hydroxypropyl acrylate 7 according to claim 14, wherein the liquid composition forming the functional surface treatment layer 26 is 40 parts by weight of a urethane acrylate oligomer, a monofunctional monomer for dilution, viscosity adjustment and increased adhesion of the oligomer. -11 parts by weight, 34 to 43 parts by weight of 1,6-hexanediol diacrylate as a bifunctional monomer, 0 to 5 parts by weight of trimethylolpropaneethoxytriacrylate as a trifunctional monomer, 4 parts by weight of acetophenone as a photoinitiator, 1 part by weight of reactive silicone as an additive, 5 parts by weight of silica as a mating agent, and a gold powder or silver powder, wherein the liquid composition forming the back functional layer 33 has a polymerization degree of 1000 to 3000. 20 to 27 parts by weight of dioctylphthalate as a primary plasticizer, 5 to 8 parts by weight of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate as a secondary plasticizer and paraffinic compound 8 ~ 12 weight 2 to 3 parts by weight of a barium-zinc compound, a heat stabilizer, and 1 to 5 parts by weight of a conventional epoxy resin (requires no curing agent because soymilk is used) for long-term low temperature heat reinforcement as another additive. Gold powder or silver powder, which is a liquid composition of a vinyl chloride resin sol made by mixing 5 to 10 parts by weight of 2,2,4-trimethyl-1,3-pentanedioldiisobutyrate and 20 parts by weight of a vinyl chloride resin sol. The method of manufacturing this containing laminated flooring material. The laminated flooring material according to claim 14, 15, 16, or 17, wherein the oil-soluble or water-soluble liquid composition of the back functional layer 33 contains 40 to 60% by weight of gold powder or silver powder. How to prepare. The laminated flooring material according to claim 14, 15, 16 or 17, wherein the oil-soluble or water-soluble liquid composition of the uppermost layer of the surface layer 20 contains 0.1 to 3% by weight of gold powder or silver powder to have an antibacterial and insect repellent effect. How to prepare. The laminated flooring material according to claim 14, 15, 16, or 17, wherein the oil-soluble or water-soluble liquid composition of the back functional layer 33 contains 40 to 60% by weight of gold powder or silver powder. How to prepare. The laminated flooring material according to claim 14, 15, 16, or 17, wherein the oil-soluble or water-soluble liquid composition of the back functional layer 33 contains 40 to 60% by weight of gold powder or silver powder. How to manufacture. The laminate according to claim 14, 15, 16, or 17, wherein 40 to 60% by weight of gold powder or silver powder is contained in the vinyl chloride resin sol liquid composition of the back functional layer 33. How to manufacture flooring.