KR20080023002A - Flooring panel having three dimensional tectile and manufacturing method thereof - Google Patents

Abstract

A floor having dimensional grain and a manufacturing method thereof are provided to increase a dry touch feeling without a tacky touch feeling by forming a foaming layer on the floor through a micro-foaming capsule. A floor comprises a top surface processing layer(15), a surface layer(21) below the top surface processing layer, and a base layer(11) at the lower part of the surface layer. The surface layer is a foaming layer. A foaming composition containing a micro-foaming capsule(22) is coated by the foaming layer. The foaming composition includes 0.1 to 20 parts by weight of the micro-foaming capsule or 5 to 70 parts by weight of a plasticizer for 100 parts by weight of a polyvinyl chloride resin paste.

Description

Flooring material having three-dimensional texture and manufacturing method thereof {Flooring panel having three dimensional tectile and manufacturing method}

1 is a side cross-sectional view showing one specific example of a general flooring.

Figure 2 is a side cross-sectional view showing another specific example of a general flooring.

Figure 3 is a side cross-sectional view of the flooring according to one specific embodiment of the flooring having a three-dimensional texture according to the present invention.

Figure 4 is a side cross-sectional view of the flooring according to another specific embodiment of the flooring having a three-dimensional texture according to the present invention.

Explanation of symbols on the main parts of the drawings

11 base material layer 12 upper layer

13: printed layer 14: transparent layer

15: surface treatment layer 16: back side foaming layer

17: sizing layer 18: embossed pattern layer

19 screen printing layer 21 foam layer

22: micro foam capsule

The present invention relates to a flooring material having a three-dimensional texture and a manufacturing method thereof, and in particular, by forming a foam layer on the surface of the flooring material using a micro-foaming capsule, there is a three-dimensional texture and dry touch (tacky touch) that does not seem to stick to the skin It relates to a flooring having a three-dimensional texture giving a touch (dry touch) and a method of manufacturing the same.

Flooring is usually laid on the surface of the floor of a concrete building to avoid direct contact with the concrete floor and is used to provide convenience for living. Therefore, the conventional flooring is manufactured to have a decorative effect on the surface with physical properties such as cushioning, durability, stain resistance.

In general, synthetic resin flooring materials have been used to decorate living spaces beautifully and to improve the feel, and various flooring materials that produce natural materials such as natural stone or wood using durable synthetic resin materials for durability and aesthetic effect. Have been widely put to practical use.

In recent years, however, consumer demands have increased due to an increase in income levels. Actually, flooring used in apartments has been somewhat inadequate in pursuing a comfortable and convenient quality of life.

In particular, in order to protect the conventional printing layer, a vinyl chloride resin skin layer has been used to impart transparency and durability to the printing layer and to protect the pattern of the printing layer. This vinyl chloride resin is a soft vinyl chloride resin, and has a large amount of plasticizer. There is a problem that the surface feels sticky because it contains. An example of the structure of the conventional flooring material is shown in FIG. 1 by schematic sectional drawing. As shown in FIG. 1, the conventional flooring material has a sizing layer 17, a release foam layer 16, a base layer 11, an upper layer 12, a print layer 13, a transparent layer 14 and a surface from the bottom. Including the processing layer 15, the sizing layer 17 and the release foam layer 16, which is located below the substrate layer 11 on the basis of the substrate layer 11, collectively referred to as a back layer. . In addition, the upper layer 12, the printing layer 13, the transparent layer 14, and the surface treatment layer 15 which are located above the substrate layer 11 on the basis of the substrate layer 11 are collectively referred to as a surface layer. . The upper layer 12 may be a foam layer or a non-foaming layer, and the sizing layer 17 and the release foam layer 16 may be stacked in a reversed order. As used herein, the term "foaming layer" refers to a chemically foamed layer, and only a mechanically foamed layer may be specifically referred to as a "mechanical foamed layer". The subdivided layers may be partially omitted or overlapped as necessary. Looking at the manufacturing process of such a conventional flooring material briefly, after impregnating a glass fiber or pulp with a large pore in the vinyl chloride resin sol (sol), the base layer 11 to give a dimensional stability of the flooring material by gelation by hot pressing The upper layer 12 is formed by laminating a foamed layer which is a vinyl chloride resin sheet which imparts a cushioning feeling or a non-foamed layer which is a vinyl chloride resin sheet having a function of increasing hardness of the product on the base layer 11. And print a predetermined pattern with the top layer 12 gravure printing to form a print layer 14, and then dry it, imparting transparency and durability on the print layer 13, and also printing layer. The transparent layer 14 which is the vinyl chloride resin sheet which protects the pattern of (13) is laminated | stacked and formed. Next, a back foam layer 16 including a chemical foam layer or a mechanical foam layer that imparts a cushioning feeling to the vinyl chloride resin sheet is laminated to the base layer 11, and is made of a vinyl chloride resin sheet, and the hardness of the product is The sizing layer 17 to be provided is laminated. Finally, after the urethane acrylic resin or the like is coated on the transparent layer 14 by curing with ultraviolet rays to form a surface treatment layer 15 for maintaining the surface strength to complete the flooring.

The conventional flooring material as described above has a problem in that the vividness and the realism of printing are deteriorated in the decorative pattern of the printing layer 13, and the plastic texture is contained in the vinyl chloride resin sheet used in the surface treatment layer 15, so that the texture of the surface There was this sticky issue.

On the other hand, the Republic of Korea Utility Model Registration No. 20-0380221 describes "three-dimensional texture flooring material using a physical foaming agent and a pearl pigment", which has a printed layer having excellent three-dimensional texture using a physical foaming agent and a pearl pigment. It describes the flooring.

However, this prior art is produced by encapsulating a liquefied gas such as isobutane or isopentane with a vinyl chloride resin or an acrylic resin or a copolymer resin thereof. As the temperature increases, the vapor pressure of the liquefied gas increases, and the resin surrounding the liquefied gas is produced. The physical foaming agent is used to increase the volume by softening the capsule to expand the capsule, and the physical foaming agent has a constant size and shape of each foaming cell compared to the chemical foaming agent, and does not generate gas. Although the haze phenomenon does not occur, but has a problem that the foaming ratio is low.

The present invention has been made to solve the problems of the prior art as described above, by forming a foam layer on the surface of the flooring material using a micro-foaming capsule dry without a three-dimensional texture and a tacky touch like sticking to the skin It is an object of the present invention to provide a three-dimensional flooring material giving a touch (dry touch) and a manufacturing method thereof.

Flooring material having a three-dimensional texture for achieving the object of the present invention as described above, in the flooring material having a top surface treatment layer, a bottom surface layer and a base material layer thereunder, the surface layer is a foam layer It features.

The foam layer may be formed by coating and foaming a foam composition including a micro-foaming capsule.

The foamed composition including the micro-foamed capsule may include 0.1 to 20 parts by weight of the micro-foamed capsule and 5 to 70 parts by weight of the plasticizer based on 100 parts by weight of the polyvinyl chloride resin paste.

The micro-foaming capsule may be one obtained by encapsulating a low melting hydrocarbon with a nitrile copolymer resin, and the nitrile copolymer resin is a copolymer of unsaturated nitrile with other vinyl step monomers, and the low melting hydrocarbon is propane or normal. It may be a liquefied gas selected from the group consisting of butane, isobutane, normal pentane or isopentane or mixtures thereof.

The micro-foamed capsule may be one having a particle diameter within the range of 5 to 40㎛.

The foaming composition may further include 0.1 to 10 parts by weight of a pigment.

Between the base layer and the foam layer may include an upper layer formed by laminating a foaming agent layer or a non-foaming agent layer or a foaming agent layer and a non-foaming agent layer together.

A print layer may be included between the upper layer and the foam layer.

A transparent layer may be included between the print layer and the foam layer.

In addition, the manufacturing method of the flooring material having a three-dimensional texture according to the present invention, in the production of a flooring material comprising a top surface treatment layer, a bottom surface layer and a base material layer thereunder,

(1) a coating step of forming a coating layer by coating a foam composition including a micro-foaming capsule between the surface treatment layer and the base layer; And

(2) a foaming step of forming a foamed layer by heating and foaming the flooring having the coating layer formed therein within a temperature range of 150 to 200 ° C.

The foamed composition including the micro-foamed capsule may include 0.1 to 20 parts by weight of the micro-foamed capsule and 5 to 70 parts by weight of the plasticizer based on 100 parts by weight of the polyvinyl chloride resin paste.

The micro-foaming capsule may be one obtained by encapsulating a low melting hydrocarbon with a nitrile copolymer resin, and the nitrile copolymer resin may be a copolymer of unsaturated nitrile with other vinyl monomers, and the low melting hydrocarbon is It may be a liquefied gas selected from the group consisting of propane, normal butane, isobutane, normal pentane or isopentane or mixtures thereof.

The micro-foamed capsule may be one having a particle diameter within the range of 5 to 40㎛.

An upper layer forming step may be further formed to form an upper layer formed by laminating a foaming agent layer or a non-foaming agent layer or a foaming agent layer and a non-foaming agent layer between the base layer and the foaming layer.

The method may further include a printing layer forming step of forming a printing layer between the upper layer and the foam layer.

A transparent layer forming step of forming a transparent layer between the print layer and the foam layer may be further included.

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

As shown in Figs. 3 and 4, the flooring having a three-dimensional texture according to the present invention, the top surface treatment layer 15, and a bottom material including a surface layer and a base material layer 11 below it. In the above, the surface layer is characterized in that the foam layer (21). That is, the present invention, unlike the conventional flooring material by forming the foam layer 21 directly under the surface treatment layer 15 to extend the physical properties of the foam layer 21 to the surface to improve the surface properties of the flooring material In one embodiment, the flooring according to the present invention is decorative and three-dimensional three-dimensional impression by forming a foam layer 21 formed by coating a foam composition comprising a micro-foaming capsule 22 in the lower portion of the surface treatment layer 15 At the same time, there is no tacky touch as if the surface of the flooring material is obtained by using the foaming properties of the micro-foaming capsule 22 included in the foaming composition forming the foaming layer 21. By providing a dry touch (dry touch) is characterized in that to improve the touch to the soles on the flooring.

The foam layer 21 may be formed by coating and foaming a foam composition including the micro-foaming capsule. The foamed composition including the micro-foamed capsule comprises 0.1 to 20 parts by weight of the micro-foamed capsule and 5 to 70 parts by weight of the plasticizer based on 100 parts by weight of the polyvinyl chloride resin paste. The polyvinyl chloride resin paste has a polymerization degree of about 800 to 2,000, and is a white powdery resin having a particle size of 1 to 90 μm. When the micro-foamed capsule is used in less than 0.1 parts by weight in the foam composition, the dry touch without the three-dimensional texture and the sticky touch (sticky touch) intended to stick to the skin according to the deterioration of the foaming effect (dry touch) There may be a problem that the effect of imparting) is not sufficient, on the contrary, if it exceeds 20 parts by weight, causing excessive foaming may adversely affect the surface properties of the flooring material, especially mechanical durability. The plasticizer may be used dioctylphthalate (DOP) butyl benzyl phthalate (BBP) and the like. The plasticizer functions to control the physical properties of the polyvinyl chloride resin, and is well known to be able to purchase and use a commercially supplied one of the leading domestic and foreign manufacturers. The foam composition forms a plurality of closed cells by forming a foam layer by foaming by heating after application on the substrate layer 11.

The micro-foaming capsule 22 is prepared by encapsulating a low melting hydrocarbon in a nitrile copolymer resin, and the low melting hydrocarbon is propane, normal butane, isobutane, normal pentane, isopentane, normal hexane, and isohexane. It may be a liquefied gas selected from the group consisting of normal octane, isooctane, or a mixture thereof. The nitrile copolymer resin is a copolymer of unsaturated nitrile with other vinyl monomers, and the unsaturated nitrile may be acrylonitrile, It may be a known nitrile monomer such as methacrylonitrile or alpha-chloroacrylonitrile, and the vinyl monomers capable of radical polymerization with the unsaturated nitrile include, for example, aromatic vinyl compounds, vinyl ethers, vinyl esters, alpha-olefins. Etc. can be mentioned. As an aromatic vinyl compound, As vinyl ester, such as styrene, alpha-methylstyrene, vinyl toluene, vinyl xylene, etc. As vinyl ether, such as vinyl acetate, propion vinyl, vinyl lactate, methyl vinyl ether, ethyl vinyl ether, propyl vinyl ether, butyl As alpha-olefins, such as vinyl ether, methyl isopropyl ether, and ethyl isopropenyl ether, isobutene, 2-methyl1-butene, 2-methyl1-pentene, 2-methyl1-hexene, 2-methyl-1- Heptene, 2-methyl-1-octene, 2-ethyl-1 butene, 2-propyl-1-butene and the like. Among these, styrene is preferable. As the polymerization method of the nitrile copolymer resin, known polymerization methods such as emulsion polymerization, solution polymerization, suspension polymerization, block polymerization or a combination thereof can be applied. However, emulsion polymerization is preferably applied in consideration of the ease of removal of the heat of polymerization, the ease of post-treatment after polymerization, the simplification of auxiliary equipments such as recovery of organic solvents, regeneration and the like. In the case of the emulsion polymerization method, the polymer product can be obtained in a latex phase, so that the polymer product is solidified and separated by a known method, for example, by an agglomeration method or a freezing method using an electrolyte or a solvent, washed with water, and dried to obtain a resin. The method can be mentioned. In addition, such a nitrile-based copolymer resin can be understood to be known enough to be commercially available to use what is provided by leading manufacturers at home and abroad. Microencapsulation techniques for encapsulating liquefied gas with resins are already known prior to the filing date of the present invention, for example, spray-drying, spray-cooling and spray-chilling. , Fluidized bed coating, extrusion, etc., and other lyophilization, coacervation, and centrifugal suspension separation. All methods are those that can be understood to be easily implemented by those skilled in the art. The spray drying method is the most common method of encapsulation in the food industry, and is used to prepare a dry and stable food additive or flavor. This process is economical and flexible. Spray drying is widely used to prepare dried foods such as powdered milk. The spray cooling and spray freezing methods are similar to spray drying, but the difference is that there is no water to evaporate. Another principle difference is the temperature of the air used in the drying chamber and the type of coating applied. While spray drying uses hot air to volatilize the solvent, this method uses cold air to cool. Micro-foamed capsules made in this way are lipid coated and insoluble in water. The fluidized bed coating method is a technique used in the commercial production of encapsulated components in the food industry. This method is suitable for producing dense particles with excellent flowability and narrow particle size. The extrusion method uses a low temperature as the extrusion method used for the capsule of the fragrance. The pressure is 100 psi or less and the temperature is 115 ° C. or less. The coating material forming the capsule matrix is in contact with the liquid to cure and seal the main material. At this time, isopropyl alcohol (isopropyl alcohol) is the most commonly used liquid. This method is used for the coating of heat-sensitive materials such as fragrances, vitamin C, colorants and the like. The micro-foaming capsule according to the present invention is also most suitable for this extrusion method or freeze-drying method.

The micro-foamed capsule may be one having a particle diameter within the range of 5 to 40㎛. If the microcapsules are less than 5㎛, there is no particular problem, but if the micro-foamed capsule is 40㎛ or more, there may be a problem in that it is difficult to maintain a uniform and clean surface state due to uneven coating property during raw material coating. .

The foaming composition may further include 0.1 to 10 parts by weight of a pigment. The pigment functions to impart color, ie, color, to the foamed composition. As the pigment, conventional oil and inorganic pigments may be selected and used, and the type and mixing ratio of colors are known to those skilled in the art in consideration of the color of the entire flooring material. When the pigment is included in less than 0.1 part by weight, there may be a problem that the imparting of color is insufficient to decorate enough, on the contrary, if the pigment is more than 10 parts by weight, there may be a problem of the lack of content of other components.

Micro-foamed capsule having the above-described configuration is mainly foamed at a high temperature of 160 to 200 ℃, when foaming, has an expansion ratio of about 50 times. In particular, the micro-foamed capsule may have a foaming start temperature in the range of 150 to 160 ° C. and a maximum foaming temperature of 180 to 200 ° C. based on an analysis standard by a conventional thermomechanical analyzer (TMA; Thermal Mechanical Analysis). . This can be understood by those skilled in the art as being able to be controlled by the type and content of the nitrile-based copolymer resin constituting the micro-foamed capsule and the low melting point hydrocarbons enclosed therein.

In order to facilitate the formation of a foam layer such as screen printing, the foam composition preferably has a property of pseudoplastic. Pseudoplastic properties mean that the kinematic viscosity is low, and the peak viscosity is high, which can be controlled by the physical properties and the content of the polyvinyl chloride resin paste constituting the foam composition.

In particular, the foamed composition containing the micro-foamed capsule was used as a foaming material in the existing flooring material, manufactured by encapsulating a liquefied gas such as isobutane and isopentane into a vinyl chloride resin or an acrylic resin or a copolymer resin thereof. Compared to one physical foaming agent, the foaming properties (foaming ratio 3 times or more) are significantly higher, and the foaming ratio is high due to the high temperature foaming using such micro-foaming capsules. General chemical foaming agent by preventing slippage, giving dry touch without sticky touch that sticks to the skin, and using nitrile copolymer resin with excellent physical properties as a capsule Compared to the use of abrasion resistance, excellent indentation strain retention and scratch resistance, It has the advantage that the crest appears to substantially matte state in about 10 suitable for use as flooring.

The substrate layer 11 and the surface treatment layer 15 may be understood to be the same as or similar to the substrate layer and the surface treatment layer of a known flooring material. The foam layer 21 formed under the surface treatment layer 15 is formed by coating a foam composition including the micro-foaming capsule 22. Coating of the foam composition may be formed by a conventional coating method, for example, by a conventional printing method such as embossing printing or screen printing to have the shape of embossing. Embossing printing presses between ordinary embossing calendars (concave and convex on the surface as embossing machine) on the surface of the flooring material, which is the object, and pushes the uneven part of the machine firmly on the surface of the flooring material. It is understood that the unique mold of the rear is produced and can be easily implemented by those skilled in the art. Screen printing can also be understood by known techniques in the printing industry. In particular, in the case of embossed printing, by giving a higher friction force to the surface of the flooring material has an advantage of improving the anti-slip function, and can produce a three-dimensional decorative effect.

An upper layer 12 may be further formed between the base layer 11 and the foam layer 21 by forming a foaming agent layer or a non-foaming agent layer or a foaming agent layer and a non-foaming agent layer together. It will be appreciated that the top layer 12 described above is the same or similar to the top layer of conventional flooring. When the upper layer 12 is made of a foaming agent layer, it may provide a cushioning effect to the flooring material to provide a cushioning effect of absorbing the shock applied while the user walks on the flooring material. When the upper layer 12 is formed of a non-foaming agent layer, it is possible to prevent the damage due to impact by strengthening the mechanical properties of the flooring material. Preferably, the upper layer 12 may be formed by laminating a foaming agent layer and a non-foaming agent layer together, thereby reinforcing cushioning and impact resistance at the same time.

A print layer 13 may be further formed between the upper layer 12 and the foam layer 21. The printing layer 13 enhances the decorativeness by coloring the surface of the flooring and forming a pattern, and gives aesthetics to improve the appearance of the flooring which is mainly used for indoor interior. The print layer 13 may also be the same as or similar to the print layer of the conventional flooring material, it can be easily understood by those skilled in the art can be formed by conventional printing techniques.

A transparent layer 14 may be further formed between the print layer 13 and the foam layer 21. The transparent layer 14 may also be formed by coating a transparent synthetic resin by a conventional coating method, it can be understood to be the same or similar to the transparent layer in a conventional flooring.

Moreover, the manufacturing method of the flooring material with a three-dimensional texture which concerns on this invention is a manufacturing method of the flooring material which includes the upper surface treatment layer 15, the lower surface layer, and the base material layer 11 below it (1). A coating step of forming a coating layer by coating a foam composition including a micro-foaming capsule between the surface treatment layer and the base layer; and (2) heating and foaming the flooring material on which the coating layer is formed within a temperature range of 150 to 200 ° C. Characterized by including a foaming step of forming the foam layer (21). As described above, the coating step is carried out by coating by the conventional printing method, such as embossing printing or screen printing to have the foam composition in the form of a conventional coating method, for example, embossing, thereby the state before foaming A coating layer of can be obtained.

Embossing printing presses between ordinary embossing calendars (concave and convex on the surface as embossing machine) on the surface of the flooring material, which is the object, and pushes the uneven part of the machine firmly on the surface of the flooring material. It is understood that the unique mold of the rear is produced and can be easily implemented by those skilled in the art. Screen printing can also be understood by known techniques in the printing industry. In particular, in the case of embossed printing, by giving a higher friction force to the surface of the flooring material has an advantage of improving the anti-slip function, and can produce a three-dimensional decorative effect. In addition, the foaming step is foamed by applying heat to the coating layer in the coating step, it may be formed by heating and foaming within the temperature range of 150 to 200 ℃ to form a foam layer (21). If the foaming temperature in the foaming step is less than 150 ℃, there may be a problem that the foam is not made sufficiently, or the size of the pores formed after the foam is formed too small, on the contrary, if the foam temperature exceeds 200 ℃, excessive foaming Due to this, there is a problem in that the shape of the cell is broken and a sudden physical weakness is caused.

As described above, the foamed composition including the micro-foaming capsule may include 0.1 to 20 parts by weight of the micro-foaming capsule and 5 to 70 parts by weight of the plasticizer, based on 100 parts by weight of the polyvinyl chloride resin paste. Foam capsules are the same as described above.

In addition, an upper layer forming step of forming a foam layer or a non-foaming layer or a foam layer and a non-foaming layer is laminated together between the base layer and the foam layer or a printing layer to form a printing layer between the upper layer and the foam layer The forming step or the transparent layer forming steps for forming the transparent layer between the printed layer and the foam layer may be performed, wherein the upper layer, the printed layer or the transparent layers may be understood to be the same as or similar to those of the conventional flooring, and Forming method of can also be understood to be the same or similar to their forming method in the conventional flooring.

In addition, the manufacturing method of the flooring material having a three-dimensional texture according to the present invention, in the production of a flooring material having a multi-layer structure including a base layer and a surface treatment layer, (1) low melting point per 100 parts by weight of polyvinyl chloride resin paste Coating step of coating the foam composition comprising 0.1 to 20 parts by weight of the micro-foam capsule encapsulating a hydrocarbon with a nitrile-based copolymer resin and 5 to 70 parts by weight of a plasticizer in the lower portion of the surface treatment layer coating the flooring material coated with the foam composition It characterized in that it comprises a foaming step of foaming by heating within a temperature range of 150 to 200 ℃. That is, according to the present invention, by forming a foam layer using a foam composition comprising a micro-foam capsule encapsulated a low-melting hydrocarbon with a nitrile-based copolymer resin, and then foaming it, foaming and expansion characteristics of the micro-foam capsule By the foaming ratio is much higher, it is possible to form larger pores, and in particular, many open cells are formed on the surface, and the depth of irregularities is much deeper by the formation of the cell, and accordingly the surface friction coefficient Large, slippery, and the tendency of the surface to stick is significantly reduced, giving a dry touch without the sticky touch that sticks to the skin, and at the same time producing a floor with excellent impact absorption ability. It is characterized by one point.

The micro-foamed capsule and the foaming composition including the same are the same as described above.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

EXAMPLE

From below, the sizing layer, the back foam layer, the base layer, the upper layer (foaming agent layer), and the printing layer are laminated in the same manner as those in the conventional flooring, and the embossing coating of the foam composition including the micro-foaming capsule on the printing layer is performed. To form an embossed patterned foam layer. At this time, the foaming composition constituting the foam layer is 10 parts by weight of micro-foamed capsule having a particle size of 30 μm by encapsulating isobutane as a low melting point hydrocarbon with nitrile resin as a nitrile copolymer resin with respect to 100 parts by weight of polyvinyl chloride resin paste. And 5 parts by weight of pigment and 40 parts by weight of plasticizer were mixed and configured. Subsequently, the same surface treatment layer as the surface treatment layer of the conventional flooring material was formed on the said foaming layer, and the flooring material was obtained.

[Comparative Example]

The flooring material was obtained in the same manner as in the above example except that the screen printing layer was formed using a printing ink including a conventional micro-foaming capsule and a pearl pigment using vinyl chloride resin instead of nitrile resin.

Experimental Example

Table 1 summarizes the results of analyzing the flooring material of the embodiment and the flooring material of the comparative example according to the present invention.

Remarks Example Comparative example Expansion ratio 300% 100% (non-foaming) Uneven Depth 0.10mm 0.03mm Surface Friction Coefficient (ASTM D1894) 1.2 0.5 Slip Scale (CSR) 0.062 0.012 Surface Tackability Dry Wet Abrasion Resistance (ASTM D4060) 0.05 0.10 Indentation strain residue (KS M3802) 0.5% 1.3% Scratch (KS M3802) 1 mm 2 mm Shock Absorption (KS G7004) 245G 270G Hardness (A hardness) 65 77 Polish 10 (matte) 25 (glossy) cell interfacial resin Nicrylic resin copolymer Vinyl chloride

As shown in Table 1, in the case of the flooring material using the foaming composition according to the present invention, the foaming layer is formed by the foaming and expansion characteristics of the micro-foaming capsule, so that the foaming ratio is much higher, thereby forming larger pores. As a result, many open cells are formed on the surface, and the depth of concavities and convexities is much deeper by the formation of the cell, so that the surface friction coefficient is large, does not slip well, and the tendency of the surface to be sticky is significantly reduced. It gives a dry touch without a tacky touch as if it sticks to the skin, and at the same time, it has been confirmed that the shock absorbing ability is excellent.

As described above, the present invention by producing a flooring material having a foam layer formed using the foam composition according to the present invention, by the foaming and expansion characteristics of the micro-foaming capsule is much higher foaming magnification to form larger pores. Thereby, in particular, many open cells are formed on the surface, and the depth of irregularities is much deeper by the formation of the cell, so that the surface friction coefficient is large, does not slip well, and the surface tends to be sticky. It is reduced to give a dry touch (tacky touch) without a sticky touch (sticky touch) to the skin, and at the same time provides the effect of providing a shock-absorbing flooring.

Claims (20)

In the top surface treatment layer, and the bottom material comprising a surface layer and a base material layer thereunder, Flooring having a three-dimensional texture, characterized in that the surface layer is a foam layer. The flooring material having a three-dimensional texture according to claim 1, wherein the foam layer is formed by coating and foaming a foam composition including a micro-foaming capsule. The method of claim 2, The foaming composition including the micro-foaming capsules comprises three to four parts by weight of micro-foaming capsules and 5 to 70 parts by weight of plasticizers based on 100 parts by weight of polyvinyl chloride resin paste. The method of claim 2, The micro-foaming capsule is a flooring material having a three-dimensional texture, characterized in that the low-melting hydrocarbon is encapsulated with a nitrile copolymer resin. The method of claim 4, wherein Flooring having a three-dimensional texture, characterized in that the nitrile copolymer resin is copolymerized unsaturated nitrile with other vinyl monomers. The method of claim 4, wherein The low melting point hydrocarbon is a flooring material having a three-dimensional texture, characterized in that the liquefied gas selected from the group consisting of propane, normal butane, isobutane, normal pentane or isopentane or a mixture thereof. The method of claim 2, The micro-foaming capsule has a three-dimensional texture flooring, characterized in that having a particle size within the range of 5 to 40㎛. The method of claim 2, Flooring having a solid feeling, characterized in that the foamed composition further comprises 0.1 to 10 parts by weight of the pigment. The method according to any one of claims 1 to 8, A flooring material having a three-dimensional texture, characterized in that it comprises a foaming layer or a non-foaming layer or an upper layer formed by laminating the foaming agent layer and the non-foaming agent layer between the base layer and the foaming layer. The method of claim 9, Flooring having a three-dimensional texture characterized in that it comprises a printing layer between the top layer and the foam layer. The method of claim 10, Flooring having a three-dimensional texture characterized in that it comprises a transparent layer between the printing layer and the foam layer. In the manufacture of a top surface treatment layer, and a bottom layer including a surface layer and a base material layer thereunder, (1) a coating step of forming a surface layer by coating a foam composition including a micro-foaming capsule between the surface treatment layer and the base layer; And (2) a foaming step of heating and foaming the flooring with the surface layer formed within a temperature range of 150 to 200 ℃; manufacturing method of a flooring having a three-dimensional texture comprising a. The method of claim 12, Method for producing a flooring material having a three-dimensional texture characterized in that the foamed composition comprising the micro-foamed capsule comprises 0.1 to 20 parts by weight of micro-foamed capsules and 5 to 70 parts by weight of plasticizers based on 100 parts by weight of polyvinyl chloride resin paste. . The method of claim 12, The micro-foaming capsule is a method of producing a flooring material having a three-dimensional texture, characterized in that the low-melting hydrocarbon is encapsulated with a nitrile copolymer resin. The method of claim 14, The nitrile-based copolymer resin is a method for producing a three-dimensional flooring material characterized in that the copolymerized unsaturated nitrile with other vinyl monomers. The method of claim 14, And the low melting hydrocarbon is a liquefied gas selected from the group consisting of propane, normal butane, isobutane, normal pentane or isopentane or mixtures thereof. The method of claim 12, The micro-foamed capsule is a manufacturing method of the flooring having a three-dimensional texture, characterized in that having a particle size within the range of 5 to 40㎛. The method according to any one of claims 12 to 17, Method of producing a flooring material having a three-dimensional texture characterized in that it further comprises an upper layer forming step of forming an upper layer formed by laminating together a foaming agent layer or a non-foaming agent layer or a foaming agent layer and a non-foaming agent layer between the base layer and the foam layer. . The method of claim 18, Method of manufacturing a flooring having a three-dimensional texture characterized in that it further comprises a print layer forming step of forming a printing layer between the upper layer and the foam layer. The method of claim 19, The method of manufacturing a flooring material having a three-dimensional texture characterized in that it further comprises a transparent layer forming step of forming a transparent layer between the print layer and the foam layer.

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