KR101282835B1 - Artificial turf made by functional material and the structure thereof - Google Patents

Abstract

PURPOSE: An artificial turf using a functional material and an artificial turf structure are provided to enable an agreeable game by reducing the smell of chemical products with a deodorization action and to reduce tiredness of a human body by releasing far-infrared radiation and an anion. CONSTITUTION: An artificial turf comprises a drainage layer (2), a base layer (3), an artificial turf layer (4), and a filling layer (5). The artificial turf layer comprises artificial turf (1). Thread comprised of synthetic fiber is planted on the upper part of the base layer with an air bubble fiber (11) as a pile (12) shape, and a rear surface of the air bubble fiber is coated with a rear surface coating material (111) in order to manufacture the artificial turf. Far-infrared radiation or an anion is released to a polyolefin resin, and the polyolefin resin is mixed with sericite powder improving flame retardancy, color pigments for aesthetic sense, a durability improvement additive, and an game performance improvement additive in order to manufacture the thread.

Description

Artificial Turf Made by Functional Material and the Structure Thereof}

The present invention relates to artificial turf and artificial turf structure prepared by planting a yarn made of synthetic fibers in the form of a pile on a bubble paper in order to have a grass shape, and more specifically, to a sericite in a polyolefin resin. Also known as (Sericite), it is functional hydrous silicate containing minerals of potassium, aluminum, mica, artificial artificial soil, antoca and coloring pigment for aesthetics, and durability improvement additive for improving durability and performance improvement additive for improving performance. Due to the efficacy of biotite or antoca as a substance, far infrared rays or negative ions are released, contributing to health promotion, increasing flame retardancy, preventing fire, and adding to artificial turf and artificial turf structure that can improve durability and playability by additives. will be.

Since the development of artificial turf in 1965, the continuous development of products that are closer to natural turf has led to the improvement of the shortcomings of the initial products, which has led to the development of products similar to natural turf in many aspects. In terms of performance and homogeneity, even better products than natural grass could be developed.

In general, however, artificial turf is used for three to five years, due to factors such as ultraviolet rays and external impacts from repeated use. The pile of the file is laid sideways and receives the external force directly without buffering, the life of the artificial turf pile is reduced, there is a problem that causes the injury of the athlete. In addition, to prevent this, if you brush regularly or replenish the rubber filler, there is a problem that a lot of maintenance costs.

In addition, due to the nature of the chemical products, there is a limit to the development of products that provide environmentally friendly, beneficial functions beyond the harm to the human body, such a situation has not been developed yet.

Polypropylene was mainly used as a pile material for artificial turf, but softer artificial turf is being produced due to the increase in the use of softer polyethylene material than polypropylene to realize a texture similar to natural grass, but its low melting point (usually Celsius) 120 degrees), the flame-retardant treatment is a real problem.

On the other hand, in order to eliminate the difference between artificial turf and natural turf, even if the life of artificial turf does not reach the maximum life of natural turf (about 100 years), it should be more than 20 years. It should be similar to a natural grass field. In addition, the maintenance method of both natural grass and artificial turf should be simple or minimized. In case of using a mixture of natural grass and artificial turf, there should be no problem in the joint part. In addition, civil engineering foundations of natural grass should be installed to grow natural grass. For civil engineering foundations of artificial turf, ground should be firmly mixed with stone powder or gravel so that the quality of artificial turf does not decrease.

However, the artificial turf developed so far has a lot of problems compared to natural grass, the situation is constantly required to study artificial grass having a natural grass or more functions.

In general, artificial turf is a artificial grass pile (grass wool) that has been planted with a yarn and a bubble paper on which the yarn can be planted, and the backing of the bubble paper on the back surface of the bubble paper to reinforce the turf after weaving the yarn on the bubble paper. Consists of a backing portion produced by coating, artificial turf structure is composed of a lower drainage layer, base layer, artificial turf, filling material.

The filling material uses silica sand or rubber chips between the grass piles for similar performance to natural grass.

Chemicals such as artificial turf and rubber chips used here emit disgusting odors that are unpleasant to players and audiences.

Artificial turf and the artificial turf structure including the same published in Patent 10-1149423 include a raw resin and a phase change material, the content of the phase change material is 3 to 30 parts by weight based on 100 parts by weight of the raw resin, The phase change material has a melting point of 20 to 50 ℃, the heat of fusion is 184 to 250 KJ / kg, phenol resin, novolac, urea resin, melamine resin, epoxy resin, polyester resin, polypropylene resin, At least one selected from the group consisting of polyethylene resins, and the original resin is at least one selected from the group consisting of polypropylene, nylon, polyester, polyethylene, polyamide, polyvinyl chloride, polystyrene, Maintain a constant temperature range, which allows users to burn themselves while walking or exercising However, there is an advantage that the life of the artificial turf is extended and physical properties such as elasticity of the artificial turf are maintained, but it is different from the present invention because it does not contain a substance that contributes to health promotion by releasing far infrared rays or anions.

Artificial turf published as Patent 10-1044653 includes a bubble made of synthetic fibers and synthetic fiber pile yarn protruding upward and extending from the bubble, the bubble is a braid (Braid) made of synthetic fibers in a network structure It is woven form, the lower end of the synthetic fiber pile yarn is squeezed together with the bubble is fixed by the bubble, the upper end of the synthetic fiber pile yarn extends to protrude upward from the bubble, the synthetic fiber pile yarn in the bubble It extends and extends upwards from the intersection portion of the braids and the braid portions connecting the intersections, but is different from the present invention because it is not a functional artificial turf.

Artificial turf published in Patent No. 10-1149796 has a turf, a mat having a transverse burrow groove is formed in a transverse groove and continuously repeated in the longitudinal direction; A pile that repeatedly binds the lower portions of the turf with a binding string; It is made, including, the mat is made of a polyurethane material having elasticity, is provided at both ends of the lateral buried groove of the mat, the longitudinal buried in communication with the lateral buried grooves formed in the longitudinal groove home; It further comprises, but the adhesive is filled in the lateral buried groove, but this is also different from the present invention because it is not a functional artificial turf.

The present invention for solving the above problems is a polyolefin-based resin, potassium, aluminum-containing hydrous silicate natural minerals of mica or artificial clay soils Antuka and coloring pigments for aesthetics and durability improvement additives and durability to improve the durability In order to improve the health by adding far-infrared rays or anions due to the effectiveness of functional substances such as biotite or antoca, it is possible to prevent fire by increasing flame retardancy and improve durability and playability by additives. Artificial turf and drainage for drainage and frostbite prevention; A base layer formed of aggregate, concrete, or asphalt concrete for securing bearing capacity; Artificial grass fabricated with artificial turf manufactured by coating yarns made of synthetic fibers on top of the base layer in the form of piles on a bubble paper and coating the back surface of the bubble paper with a back coating material. A layer; It is to provide an artificial turf structure consisting of a filling layer for maintaining the upright state of the pile, absorbing the impact of the use, and filling the filler between the pile to improve the performance and provide functionality.

Artificial turf using the functional material of the present invention is prepared by coating the back surface of the bubble paper with a back coating material after planting the yarn made of synthetic fibers in the form of a pile (Pile) to form a grass. In the yarn, 1 to 5 parts by weight of mica powder or antoca powder having a particle size of 200 to 1,200 mesh and reinforcing flame retardance to release emission of far infrared rays or anions to 100 parts by weight of polyolefin resin, and 1 to 10 colored pigments for aesthetics In parts by weight, 0.2 to 6 parts by weight of one or more durability enhancing additives of antioxidant, ultraviolet absorber, light stabilizer or flame retardant to improve durability, and antistatic agent, hydrophilic additive or friction modifier to improve performance. It is manufactured by mixing 0.2 to 6 parts by weight of one or more race improving additives.

The yarn is 70 ~ 500㎛ thickness, 1 ~ 3mm in width, the biotite powder is dyed in the same color as the yarn, the polyolefin resin is polyethylene, polypropylene, polyethylene-propylene copolymer or poly Isobutylene, the polyolefin resin is a mixed resin composition containing 80 to 95% by weight of linear polyethylene with a density of 0.918 to 0.940, 5 to 20% by weight of polypropylene, or 30 to 80 of linear polyethylene with a density of 0.918 to 0.940 A mixed resin composition containing 20 to 70% by weight of high density polyethylene having a weight% and a density of 0.945 to 0.960.

The foam paper is made of a polypropylene nonwoven fabric for stability of the form, the back coating material is 110 to 120 parts by weight of water, 0 to 100 parts by weight of bicarbonate, 100 to 100% by weight of hard cellulose powder or antoca 100 ~ to 100 parts by weight of the thermosetting resin of latex or polyurethane It consists of a mixture of 200 parts by weight, 1 to 2 parts by weight of viscosity agent, 1 to 2 parts by weight of pigment and 0.5 to 1.5 parts by weight of antioxidant.

The bubble paper in which the yarn is planted is coated with the back coating material, dried with hot air at 80 to 120 ° C., and wound up with a winder to prepare artificial grass in a roll form.

The antoca powder is crushed by firing iron or clay containing iron at a temperature of 600 ~ 1,200 ℃ to have a reddish brown, the mica powder is prepared by grinding by heating 15 ~ 45 minutes at 700 ~ 800 ℃.

Artificial turf structure using the functional material of the present invention and the drainage layer for preventing drainage and in phase; A base layer formed of aggregate, concrete, or asphalt concrete for securing bearing capacity; Artificial grass fabricated with artificial turf manufactured by coating yarns made of synthetic fibers on top of the base layer in the form of piles on a bubble paper and coating the back surface of the bubble paper with a back coating material. A layer; It is composed of a filling layer for maintaining the upright state of the pile, absorbing the impact of the use, and filling the filler between the pile to improve the performance and provide functionality.

The filling layer is formed of a filler with a particle size of 0.1 ~ 3mm to maintain a standing state of the pile and to provide improved performance and functionality, and a chip filling material of an elastic chip having a particle diameter of 1 to 5mm and installed on top of the powder layer. It is formed of an elastic layer that maintains the standing state of the pile and absorbs the impact of use.

The yarn is 1 to 5 parts by weight of mica powder or antoca powder of 200 to 1,200 mesh particle size, and 1 to 10 parts by weight of color pigment for aesthetics to release emission of far infrared rays or anions to 100 parts by weight of polyolefin resin and to reinforce flame retardancy. 1 to 6 parts by weight of one or more durability enhancing additives of antioxidant, ultraviolet absorber, light stabilizer or flame retardant to improve durability, and antistatic agent, hydrophilic additive or friction modifier to improve performance. It is prepared by mixing 0.2 to 6 parts by weight of at least one performance improving additive.

Artificial grass and artificial turf structure using the above-described functional material can solve the problem to be solved of the present invention.

According to the artificial turf and artificial turf structure using the functional material of the present invention, the polyolefin resin is mixed with an anthuca, which is a hydrous silicate natural mineral containing potassium and aluminum, and an antoca, which is an artificial clay, to reduce the fatigue of the body by releasing far infrared rays and anions. The mica or antoca is a non-flammable mineral, which increases the flame retardancy of the yarn and reduces the risk of fire, and also when the artificial turf, which is a chemical product, is exposed to sunlight due to the deodorant action. I have the effect of reducing odors and suppressing germs to protect spectators and athletes and to ensure a comfortable game.

1 is a cross-sectional view of the artificial turf using the functional material of the present invention
2 is a cross-sectional view of the artificial turf structure using the functional material of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the terms to be described later are defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or the operator, and the definitions thereof are defined as "artificial grass and artificial turf structure using a functional material". It should be made based on the contents throughout the specification to describe.

Hereinafter, preferred embodiments of the "artificial turf and artificial turf structure using a functional material" according to the present invention will be described in detail with reference to the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a cross-sectional view of the artificial turf using the functional material of the present invention, Figure 2 is a cross-sectional view of the artificial turf structure using the functional material of the present invention.

Artificial grass (1) using the functional material of the present invention as shown in Figure 1 is a form of a pile (Pile) 12 in the bubble paper 11 to form a grass made of synthetic fibers as a material After planting with a coating on the back surface of the bubble paper 11 is prepared by coating the back coating material (111).

The yarn is 1 to 5 parts by weight of mica powder or antoca powder of 200 to 1,200 mesh particle size, and 1 to 10 parts by weight of color pigment for aesthetics to release emission of far infrared rays or anions to 100 parts by weight of polyolefin resin and to reinforce flame retardancy. 0.2 to 6 parts by weight of one or more durability enhancing additives of antioxidants, ultraviolet absorbers, light stabilizers or flame retardants to improve durability, and one of antistatic agents, hydrophilic additives or friction modifiers to improve performance. It is prepared by mixing 0.2 to 6 parts by weight of at least one raceability improving additive.

The polyolefin resin may be one or two of polyethylene, polypropylene, polyethylene-propylene copolymer, or polyisobutylene.

When the two polyolefin resin is a mixed resin composition containing 80 to 95% by weight of linear polyethylene with a density of 0.918 to 0.940, 5 to 20% by weight of polypropylene, or 30 to 80% by weight of linear polyethylene with a density of 0.918 to 0.940, A mixed resin composition containing 20 to 70% by weight of high density polyethylene having a density of 0.945 to 0.960 may be used.

The melt mixture for preparing the yarn is melt mixed with 1 to 5 parts by weight of mica powder or antoca powder having a particle size of 200 to 1,200 mesh to reinforce flame retardancy and release far infrared rays or anions to 100 parts by weight of the polyolefin resin. 1 to 10 parts by weight of colored pigments for aesthetics to the mixture, 0.2 to 6 parts by weight of at least one durability enhancing additive of antioxidants, ultraviolet absorbers, light stabilizers or flame retardants to enhance durability, and to improve performance It is prepared by mixing 0.2 to 6 parts by weight of one or more race improving additives in an inhibitor, a hydrophilic additive or a friction modifier.

The melt mixture of the polyolefin resin may include an additive in an amount of usually 0.1 to 20 parts by weight, but preferably in an amount of 0.4 to 12 parts by weight.

The friction coefficient reducing agent includes polyethylene terephthalate, polytetrafluoroethylene, and the like.

The hydrophilic additive uses ethylene vinyl alcohol copolymer or polyhydroxyethyl methacrylate.

It is preferable that the said yarn is 70-500 micrometers in thickness, and 1-3 mm in width.

The biotite powder is preferably a powder dyed in the same color as the yarn.

The antoca powder should be prepared by sintering and pulverizing iron-containing clay or loess at a temperature of 600 ~ 1,200 ℃, reddish brown.

The biotite powder is prepared by grinding after heating 15 to 45 minutes at 700 ~ 800 ℃.

The bubble paper 11 is preferably made of a polypropylene nonwoven fabric for stability of the form.

The back coating material 111 is 110 to 120 parts by weight of water, 0 to 100 parts by weight of bicarbonate, 100 to 200 parts by weight of mica wool or antoca, 100 to 200 parts by weight of a viscous agent, 1 to 2 parts by weight of latex or polyurethane thermosetting resin, It consists of a mixture of 1-2 parts by weight of pigment and 0.5-1.5 parts by weight of antioxidant.

The bubble paper 11 in which the yarn is planted is coated with the back coating material 111, dried with hot air at 80 to 120 ° C., and wound up with a winder to produce artificial grass in a roll form.

The chorus is also called sericite, and the term 'sericite' comes from the Greek word for silk. It belongs to monoclinic system and has white or off-white pearl luster. Originally referred to as the dominant mineral of crystalline schist rock, especially chorionic schist rock, today it refers to clay-like fine muscovite formed by hydrothermal action. The chemical composition is almost the same as that of the mica, but in general the potassium K is less than the mica and somewhat more water H 2 O. It is produced as a secondary alteration such as feldspar, cordierite, and hongseokseok, and is the most common constituent mineral of feldspar slate or stony rock subjected to light power metamorphism. The potter's stone is caused by the alteration of volcanic rock, which is composed of quartz (70%) and biotite (30%). Cicada is used as a mixing material for ceramics and firebrick, and has various uses such as paints, electrical insulators, active materials, pesticides, and cosmetics.

In order to maintain health and lead a healthy life through the healing methods obtained from nature according to the trend of naturalism and eco-friendliness, sorghum is widely used in the fields of high-quality cosmetics, health care products, and science and technology.

The biotium is rich in dozens of essential minerals and trace elements. It emits far-infrared rays and negative ions to promote metabolism, smooth blood circulation, toxin discharge, clean up waste products, and block harmful electromagnetic waves (vessels). It is the health keeper of modern man who releases healing waves and develops the power to resist diseases by ourselves.

The biotite is a natural mineral having the best far-infrared emission, promoting blood circulation, promoting metabolism, relieving pain, discharging waste and detoxifying the far-infrared effect, healing wave effect for detoxification and disease healing, blood purification and antibacterial anion. Has a deodorizing effect to remove effects and bad body odor

Products utilizing the Cicada include health bracelets, health necklaces, health belts, etc., which are made so that the body can always live with health care stones. Cicada health hot water mat, stool bed (floor bed, Mattress bed), and it is introduced as a variety of health care products such as scallion soap, stick type foundation, which can be massaged with fine foam.

The biotite is dried for 15 to 45 minutes in the range of 700 ~ 800 ℃ Celsius to remove organic matter, impurities and the like, and then crushed to an appropriate particle size, it is ideal to use the same color as the yarn of grass.

The yarn is usually produced sequentially in the process of raw material injection-mixing-melting-spinning-cooling-stretching-winding.

In order to uniformly mix the durability improving additive and the competition improving additive in the production of the yarn, first, the polyolefin-based resin and mica powder or antoca powder, pigments and additives are mixed to form a masterbatch.

The masterbatch is used for improving productivity and dispersibility.

The master batch is formed by mixing 70 ~ 90% by weight of polyolefin-based resin: 30 ~ 10% by weight of additives (mole mica or antoca, pigments, additives), ideally 80:20 ratio, can be sufficiently blended The mixture is first mixed using a mixer, and the mixture is melted at a temperature of 120 ° C to 170 ° C, extruded through a die, and cut into pellets.

The mixer can be used at both high and low speeds, but a high speed mixer is ideal.

Thereafter, the pellet mixed with the additive formed in the masterbatch and the polyolefin-based resin to which the additive is not added are mixed at a predetermined ratio, thereby sequentially performing melt-spinning-cooling-winding to produce yarn having functionalities. . That is, the melt mixture including these is stretched after extrusion to produce yarn.

Monofilament yarns used for artificial turf are preferably 1-3 mm wide and 70-500 μm thick.

 That is, it extrudes by a normal method and manufactures a yarn. This process is performed sequentially by mixing-melting-spinning-cooling-stretching-winding.

The molten mixture produced by mixing the pellets in which the additives formed in the masterbatch and the polyolefin-based resins without the additives are added at a predetermined ratio is spun through a die having a plurality of nozzles, stretched and wound up after cooling in water, and produced. When this is completed, the melting temperature is in the range of 120 ℃ to 170 ℃ but determines the appropriate temperature according to the material.

By stretching, the tensile strength is improved. The stretching is in the range of 3 to 10 times the original length at 80 to 110 degrees Celsius, and 6 to 8 times is ideal. The heating method is hot air or roll.

The yarn may be molded in the form of fibrillated yarn or monofilament yarn, but is preferably monofilament yarn. Fibrillated yarn cuts the molded product extruded and stretched to a certain width in the form of a film, due to the mixed mica powder in the process of cutting may not be smooth and can reduce the weather resistance.

The yarn thus produced is usually planted in a polypropylene bubble paper by a method such as tufting, laselle, and the like, and then coated with a back coating material 111, which is a thermosetting resin, for drying of the back surface for stability of form and drawing strength of the pile.

The back coating material 111 is a latex, preferably styrene-butadiene latex of a carboxyl group, or polyurethane is applied to the back of the bubble paper using a thermosetting resin, and after the application is dried at a temperature of 80 ~ 120 ℃. At this time, 0.5 to 1.5 parts by weight of an antioxidant, 1 to 2 parts by weight of a viscosity agent, and 1 to 2 parts by weight of a pigment can be mixed and used.

As shown in Figure 2, the artificial turf structure of the present invention includes a drainage layer (2) for drainage and prevention of in-phase; A base layer 3 formed of aggregate, concrete, or asphalt concrete for securing bearing capacity; Yarn made of synthetic fibers on top of the base layer 3 is planted in the form of a pile 12 in the bubble paper 11 so as to have a grass shape, and then the back surface of the bubble paper 11 is reared. An artificial turf layer 4 having artificial turf 1 formed by coating with a coating material 111; It is composed of a filling layer (5) to maintain the upright state of the pile 12, to absorb the impact of the use, and to fill the filler material between the pile 12 for improving the performance and provide functionality.

The filling layer (5) is formed of a particle size of 0.1 ~ 3mm filler to maintain the standing state of the pile and provide the performance and improved functionality, and is installed on top of the powder layer 51 and the particle size 1 It is formed of an elastic chip chip filler of ~ 5mm elastic chip to maintain the standing state of the pile 12 and to absorb the impact of the use is composed of an elastic layer (52).

The yarn is 1 to 5 parts by weight of mica powder or antoca powder of 200 to 1,200 mesh particle size, and 1 to 10 parts by weight of color pigment for aesthetics to release emission of far infrared rays or anions to 100 parts by weight of polyolefin resin and to reinforce flame retardancy. 1 to 6 parts by weight of one or more durability enhancing additives of antioxidant, ultraviolet absorber, light stabilizer or flame retardant to improve durability, and antistatic agent, hydrophilic additive or friction modifier to improve performance. It is prepared by mixing 0.2 to 6 parts by weight of at least one performance improving additive.

It is preferable that the said yarn is 70-500 micrometers in thickness, and 1-3 mm in width.

The biotite powder uses a powder dyed in the same color as the yarn.

The polyolefin resin is one of polyethylene, polypropylene, polyethylene-propylene copolymer or polyisobutylene.

The polyolefin resin is a mixed resin composition containing 80 to 95% by weight of linear polyethylene having a density of 0.918 to 0.940, and 5 to 20% by weight of polypropylene, or 30 to 80% by weight of linear polyethylene having a density of 0.918 to 0.940 and a density of 0.945 to 0.960. It is a mixed resin composition containing 20 to 70% by weight of high density polyethylene.

The bubble paper 11 is made of a polypropylene nonwoven fabric for stability of the shape, the back coating material 111 is 110 to 120 parts by weight of water, 100 to 100 parts by weight of thermosetting resin of latex or polyurethane, 0 to 100 parts by weight of heavy carbon It is composed of 100 to 200 parts by weight of mica powder or antoca, 1 to 2 parts by weight of viscous agent, 1 to 2 parts by weight of pigment and 0.5 to 1.5 parts by weight of antioxidant.

The bubble paper 11 in which the yarn is planted is coated with the back coating material 111, dried with hot air at 80 to 120 ° C., and wound up with a winder to produce artificial grass in a roll form.

The antoca powder is prepared by sintering clay or ocher containing iron powder at a temperature of 600 to 1,200 ° C. and then pulverizing it, and using reddish brown color.

The biotite powder is prepared by grinding after heating 15 to 45 minutes at 700 ~ 800 ℃.

The coloring pigment may use a heat shielding pigment, and the heat shielding pigment may include a white heat shielding pigment, a color heat shielding pigment, a hollow pigment, and a PCM (phase change material). White heat shielding pigments have a phospholipid dioxide component. In addition, the colored heat-insulating pigment is a complex oxide of iron and chromium, and may be represented by the chemical formula Fe (Fe.Cr) 2 O 4. In addition, the hollow pigment is a lightweight filler having a glass bubbles component (glass bubbles), the specific gravity is 0.1 ~ 0.7, the surface specific gravity is used is 0.05 ~ 0.5. And PCM has paraffin wax component.

Since the yarn and the mica powder or antoca powder have been described above with reference to FIG. 1, detailed descriptions thereof will be omitted.

The drainage layer 2 is a layer for preventing drainage and frostbite, and the material of the drainage layer is crushed stone, aggregate, slag, or a material approved by the supervisor, or a mixture thereof, which does not contain clay, silt, organic impurities, etc. It must be a material and meet the requirements in Table 1 below.

division Test Methods standard Plasticity index KS F 2304 below 10 Sand equivalent (%) KS F 2340 20 or more Modified CBR Value (%) KS F 2320 over 10

The material to be used for the cabbage layer (2) should be in the range of 30 to 70 percent by weight of the 4.75mm sieve, and the content of the material passing through the 75㎛ sieve should maintain an appropriate particle size in the range of 15% or less. The maximum particle diameter of the aggregate cannot exceed 100 mm. However, the same material as the auxiliary base material may be used in consideration of utilization of local materials and economical efficiency.

Before the drainage layer 2 is constructed, dust, clay, organic matter, and other impurities on the surface of the roadbed should be removed and cleaned up.

The construction of the drainage layer 2 should be uniformly laid so that the thickness of one layer after compaction does not exceed 20 cm.

The compaction work starts from the outside of the road, but compacts by overlapping the shoulders and proceeds parallel to the center line of the road, so that the half width of the main wheel width of the roller overlaps the preceding compaction surface, and the rear wheels compact the entire surface. The entire surface is to be carried out until there is no wavelength undulation at the front of the compaction surface and the main wheel as the roller progresses. In the unilateral compartment, pledge in the same manner as described above, but proceed from the shallow side to the higher side. The infrost prevention layer shall be compacted to 95% or more of the maximum dry density specified in the KS F 2312 soil compaction test method, and the water content during compaction shall be maintained within ± 2% of the optimum water content ratio specified in the test.

The finished drainage layer 2 should correspond to the grade and cross section shown in the design drawing and the difference from the plan height should be 3 cm or less. Excessive height of the finished surface shall be recut and compacted to the specified quality.

The base layer 3 is a layer on which the artificial turf 1 is to be installed. The base layer 3 is installed on the drainage layer to uniformly receive a load acting on the artificial turf layer 4 and the artificial turf layer 4 ) Can be installed in a variety of materials and methods, such as aggregate, concrete or asphalt concrete to secure the support to maintain the state without the jungle, the aggregate, concrete or asphalt concrete is selected according to the situation.

In the case where elastic reinforcement is required between the artificial turf layer 4 and the base layer 3, an elastic layer may be additionally laid on the base layer before the artificial turf layer 4 is laid.

Assuming that the artificial turf layer 4 is installed in a specific field of the artificial turf 1, the construction method is as follows.

The artificial turf 1 has one roll as a basic unit and is installed by connecting a plurality of rolls to a work area. At this time, when moving for laying the artificial turf (1), the artificial turf (1) should not be pulled. The teeth of the artificial turf (1) when pulled badly

Attention should be paid to unevenness of the surface of the ballpark after water changes or construction.

First, the artificial turf (1) installation is selected from the center line center line, starting from the center line is laid one by one roll (ROLL) in order. At this time, when laying the artificial turf (1), the artificial turf (1) and artificial turf (1) is connected by a joint tape (JOINT TAPE).

When the center line of the ballpark where the artificial turf 1 is to be installed is selected, the center line is displayed on the base layer 3.

Then, the artificial turf 1 to be connected to each other is laid out so that the edge of each artificial turf 1 coincides with the center line. The artificial turf 1 is rolled up about 50 cm on the basis of the portion of the artificial turf 1 to be connected. Then, a 25-30 cm wide net (MESH) -type joint tape is unfolded in a straight line so as to be centered at the connection site on the base layer 3. Subsequently, an adhesive (Sam Pen Paint AD300) is evenly applied on the mesh joint tape using HERA. After approximately 10 minutes have elapsed, the artificial turf 140 on both sides of the rolled up is stretched out. Then, the weight and the roller (ROLLER) is used to fully bond. Through the same method as described above, the artificial turf 1 of one roll is connected to the other artificial turf 1 in symmetry. The artificial turf 1 is laid on the base layer 3 by connecting the plurality of artificial turf 1 to each other through the above-described method.

On the other hand, the artificial turf 1 is cut and laid on the outer end line of the drainage path accurately, so that the filler material does not overflow later. The method of marking the line uses the method of weaving, and care should be taken when bonding. The pile length of the line and the glued part shall be constructed not to be more than 5mm.

After laying the artificial turf (1) through the method described above, the artificial turf (1) transported and installed in a roll state is erected using a brush because the pile is laid in the direction in which the roll is wound.

The filling layer 5 maintains the upright state of the pile 12 and absorbs the impact of using the pile 12, and fills the filler material between the pile 12 to improve performance and provide functionality.

The filling layer (5) is formed of a particle size of 0.1 ~ 3mm filler to maintain the standing state of the pile and provide the performance and improved functionality, and is installed on top of the powder layer 51 and the particle size 1 It is formed of an elastic chip chip filler of ~ 5mm elastic chip to maintain the standing state of the pile 12 and to absorb the impact of the use is composed of an elastic layer (52).

The elastic chip includes rubber, SEBS, EPDM, heat shield pigments and other additives.

The elastic chip may be composed of a composition ratio of 3 to 30% by weight of heat shield pigment, 10 to 50% by weight of SEBS, 10 to 50% by weight of EPDM and other additives 0 to 5% by weight.

Here, the heat shield pigments include white heat shield pigments, colored heat shield pigments, hollow pigments, and PCM. White heat shielding pigments have a phospholipid dioxide component. In addition, the colored heat-insulating pigment is an iron chromium composite oxide, and can be represented by the chemical formula Fe (Fe.Cr) 2 O 4. In addition, the hollow pigment is a lightweight filler having a glass bubble component, the specific gravity is 0.1 ~ 0.7, the surface specific gravity is used is 0.05 ~ 0.5. And PCM has a paraffin wax component, and other additives may be UV stabilizers, plasticizers, lubricants and the like.

According to the artificial turf and artificial turf structure using the functional material of the present invention, the polyolefin resin is mixed with an anthuca, which is a hydrous silicate natural mineral containing potassium and aluminum, and an antoca, which is an artificial clay, to reduce the fatigue of the body by releasing far infrared rays and anions. The mica or antoca is a non-flammable mineral, which increases the flame retardancy of the yarn and reduces the risk of fire, and also when the artificial turf, which is a chemical product, is exposed to sunlight due to the deodorant action. I have the effect of reducing odors and suppressing germs to protect spectators and athletes and to ensure a comfortable game.

1: artificial turf 11: bubble
111: back coating material 12: file
2: drainage layer 3: base layer
4: artificial grass layer 5: filling layer
51: powder layer 52: elastic layer

Claims (10)

delete delete delete delete delete delete delete delete delete A drainage layer (2) for drainage and frostbite prevention;
A base layer 3 formed of aggregate, concrete, or asphalt concrete for securing bearing capacity;
Yarn made of synthetic fibers on top of the base layer 3 is planted in the form of a pile 12 in the bubble paper 11 so as to have a grass shape, and then the back surface of the bubble paper 11 is reared. An artificial turf layer 4 having artificial turf 1 formed by coating with a coating material 111;
In the artificial turf structure consisting of a filling layer 5 for maintaining the upright state of the pile 12, absorbing the impact of the use, and filling the filler material between the pile 12 to improve the performance and provide functionality In
The filling layer (5) is formed of a particle size of 0.1 ~ 3mm filler to maintain the standing state of the pile and provide the performance and improved functionality, and is installed on top of the powder layer 51 and the particle size 1 It is formed of a chip filling material of the elastic chip of ~ 5mm is composed of an elastic layer 52 to maintain the standing state of the pile 12 and to absorb the impact of use,
The yarn is 1 to 5 parts by weight of mica powder or antoca powder of 200 to 1,200 mesh particle size, and 1 to 10 parts by weight of color pigment for aesthetics to release emission of far infrared rays or anions to 100 parts by weight of polyolefin resin and to reinforce flame retardancy. 1 to 6 parts by weight of one or more durability enhancing additives of antioxidant, ultraviolet absorber, light stabilizer or flame retardant to improve durability, and antistatic agent, hydrophilic additive or friction modifier to improve performance. It is prepared by mixing 0.2 to 6 parts by weight of more than one performance enhancing additive,
The yarn is 70 ~ 500㎛ thickness, 1-3mm in width,
The biotite powder uses a powder dyed in the same color as the yarn,
The polyolefin resin is one of polyethylene, polypropylene, polyethylene-propylene copolymer or polyisobutylene,
The polyolefin resin is a mixed resin composition containing 80 to 95% by weight of linear polyethylene having a density of 0.918 to 0.940, and 5 to 20% by weight of polypropylene, or 30 to 80% by weight of linear polyethylene having a density of 0.918 to 0.940 and a density of 0.945 to 0.960. It is a mixed resin composition containing 20 to 70% by weight of high density polyethylene,
The bubble paper 11 is made of a polypropylene nonwoven fabric for stability of the form,
The back coating material 111 is 110 to 120 parts by weight of water, 0 to 100 parts by weight of bicarbonate, 100 to 200 parts by weight of mica wool or antoca, 100 to 200 parts by weight of a viscous agent, 1 to 2 parts by weight of latex or polyurethane thermosetting resin, Consisting of a mixture of 1-2 parts by weight of pigment and 0.5-1.5 parts by weight of antioxidant,
The bubble paper 11 in which the yarn is planted is coated with the back coating material 111, dried with hot air at 80-120 ° C., and wound up with a winder to manufacture artificial grass in a roll form.
The antoca powder is prepared by sintering clay or ocher containing iron powder at a temperature of 600 to 1,200 ° C. and then pulverizing it to give a reddish brown color.
The biotite powder is artificial turf structure using a functional material, characterized in that manufactured by grinding after heating 15 to 45 minutes at 700 ~ 800 ℃

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