KR101267940B1 - Mat structure coated functional materials and coating method - Google Patents

Abstract

PURPOSE: An artificial lawn coated with a functional material and a coating apparatus thereof are provided to prevent injuries by absorbing shocks and to improve quality. CONSTITUTION: An artificial lawn coated with a functional material is featured by coating the functional material on yarn(12) that is piloerected through a raw material layer(11). An artificial lawn coating apparatus(100) transfers the raw material layer and an artificial lawn pile(10) formed of the yarn that is piloerected through the raw material layer. The artificial lawn coating apparatus makes the yarn to face a lower part and passes a coating unit(110), which spreads out and dries the raw material using hot air, wherein a container(111) including a functional composition is installed in the coating unit, and thus the transferred yarn is embedded in the functional composition so that the functional material is coated on the surface of the yarn and coated by hot air.

Description

Artificial grass coated with functional material and coating device thereof {mat structure coated functional materials and coating method}

The present invention relates to an artificial turf coated with a functional material and a coating apparatus thereof, and more particularly, to an artificial turf coated with a functional material so as to ensure improved functionality by coating a functional material on an artificial turf yarn and a coating thereof. Relates to a device.

Artificial turf is a substitute for artificial grass made of synthetic fibers in the form of grass. Since it was first manufactured in the United States in 1956, it has been used mainly in sports fields such as baseball, soccer, and golf. It can be used in places such as indoor gardens or outdoor areas facing the north side of high-rise buildings with extremely limited sunshine hours.

In general, the artificial turf structure is composed of a bubble layer, a pile formed by injecting yarn into the bubble layer, a support layer formed on the bottom surface of the bubble layer, and optionally, a silica sand between the top and the pile of the bubble layer for a buffering action. Further comprising a filling layer formed by filling the filler. The pile was originally developed from nylon, but is increasingly being replaced by polyolefin materials such as polyethylene or polypropylene to reduce friction. When the pile is formed by weaving yarns with the Raschel method or the mocket method, the bubble layer is mainly made of polyester (PET) bubble paper, and a polypropylene plain fabric is developed as a tufting method is developed to form piles in large quantities. Many types of bubble paper are used. As the support layer, most of the acrylic resin and styrene-butadiene rubber (SBR) are used as the layer for strengthening the shape stability of the artificial turf structure, reducing noise, strengthening the tear strength, and strengthening the pull strength of the pile. Research has been actively conducted. For example, a two-component reactive polyurethane material is commercially available as a material capable of high elasticity and high pull strength, and is commercially available. However, the two-component reactive polyurethane is expensive, and it is difficult to steadily maintain a suitable magnification in the continuous two-liquid reaction process, so that poor physical properties often occur.

Figure 1 schematically shows the cross-sectional structure of a conventional artificial turf structure. As shown in FIG. 1, in the artificial turf structure 100, the pile 20 is positioned above the bubble layer and the support layer 30 is positioned below the bubble layer. The support layer is typically made of a coating film formed by applying an acrylic resin latex, polyurethane latex, or styrene-butadiene rubber (SBR) latex to the bottom surface of the bubble layer. At this time, the material of the latex forming the support layer has a different property from the material (polyolefin or polyester) forming the pile or bubble layer, so that a certain pile drawing strength may not be maintained when used for a long time, and thus the durability may be reduced. When the material to be formed is a polar polyethylene terephthalate, an increase in the amount of latex is inevitable in order to maintain a predetermined pile pull strength. Undried product defects may occur.

In addition, as shown in FIG. 1, when the pile is formed of a multi-stranded monofilament yarn in the form of a "U" in the bubble layer, the multi-stranded monofilament yarn 20 on the bottom surface of the bubble layer has a different radius of curvature. When the latex is applied thereto, a portion having a small radius of curvature has a relatively small amount of latex penetration than a portion having a large radius of curvature, and a portion of the pile having a small radius of curvature has a weak draw strength.

In addition, the artificial turf structure is destined to be replaced if it loses its function equivalent to natural grass after a certain period of time. Recently, due to the increase in the use of leisure life and the improvement of the welfare level, the artificial turf is gradually increased, and the excessive amount of industrial waste is removed. There is a fear of mass production. In order to prevent this, it is important to recycle the artificial turf structure that has expired. In the artificial turf structure of FIG. (SBR), or polyurethane materials, are difficult to recycle or require complex processes for recycling. That is, the artificial turf structure has a problem that the application field as a recycled material is very limited because polymers having different physical properties such as polyethylene or polypropylene, acrylic resin, styrene-butadiene rubber (SBR), and polyurethane are mixed.

Artificial grass coated with the functional material of the present invention and a coating apparatus thereof to solve the above problems to coat the functional material on the yarn during the transfer process of the artificial turf file to the yarn texture of the artificial turf through the functional material and It is to ensure form resilience.

Artificial grass coated with a functional material of the present invention for achieving the above object is characterized in that the functional material is applied to the yarns and penetrated through the fabric layer.

According to the invention, the yarn is characterized in that the polyolefin (Polyolefin) fibers or polyamide (Polyamide) fibers.

According to the invention, the fabric layer is characterized in that made of a woven or knitted or non-woven form.

According to the invention, the yarn is characterized in that the monofilament yarn or fibrillated yarn.

According to the present invention, the functional material is characterized in that it is made to apply any one resin selected from acrylic resin, epoxy resin, polyurethane resin or styrene-butadiene rubber (SBR) resin.

In addition, the artificial turf coating apparatus of the present invention to transfer the artificial grass pile consisting of the fabric layer and the yarns penetrated through the fabric layer, so that the yarn is directed to the bottom, and to dry the fabric by hot air Passing the coating portion, the inside of the coating portion is installed by the container containing the functional composition is transferred to the yarn is immersed in the functional composition is characterized in that the coating by the hot air after applying the functional material on the yarn surface.

According to the present invention, the container is filled with a functional material by forming a space having an upper opening therein, characterized in that the artificial grass pile is moved so that the yarn is submerged in the functional material.

According to the present invention, the coating unit is installed in the front conveying means, the first roller is installed in front of the coating portion, and the second roller and the third roller in parallel to the front upper portion of the first roller to transfer the file It is characterized in that it is configured to guide the conveying direction while.

As described above, the artificial turf coated with the functional material of the present invention and the coating apparatus thereof transfers the artificial grass pile made of the raw material layer and the yarns which are collected through the raw material layer, so that the yarn faces downward. Pass the coating unit to spread and dry the fabric with hot air, but install the container containing the functional composition inside the coating unit so that the transferred yarn is immersed in the functional composition to coat the functional material on the surface of the yarn and then coat it by hot air. By using the functional material coated yarn to have the wear resistance of the yarn, the regeneration power and elasticity to be restored to its original shape within a short time after the damage, the yarn of the artificial turf to play a role of good texture and improved cushioning It is safe from danger and prevents frictional damage when slipped.

1 is a schematic view showing a cross-sectional structure of a conventional artificial turf structure.
Figure 2 is a block diagram showing an artificial turf coating apparatus according to a preferred embodiment of the present invention.
Figure 3 is a block diagram showing a coating portion of the artificial Dandy coating apparatus according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

The terms "about "," substantially ", etc. used to the extent that they are used herein are intended to be taken to mean an approximation of, or approximation to, the numerical values of manufacturing and material tolerances inherent in the meanings mentioned, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure.

2 is a block diagram showing an artificial turf coating apparatus according to a preferred embodiment of the present invention, Figure 3 is a block diagram showing a coating portion of the artificial dandi coating apparatus according to a preferred embodiment of the present invention.

Artificial turf consists of a fabric layer 11 and 12 yarns penetrated through the fabric layer 11.

The fabric layer 11 is composed of a woven fabric of polyolefin fibers or a nonwoven fabric of polyolefin fibers, or a polyester short fiber or polyolefin end formed on a lower surface of a woven fabric of polyolefin fibers or a nonwoven fabric of polyolefin fibers and a nonwoven fabric of the polyolefin fibers or a nonwoven fabric of polyolefin fibers. It consists of a web of fibers.

In addition, the yarn 12 may be a fibrate yarn 12 (fibrilate yarn) or monofilament yarn 12 (monofilament yarn) made of polyethylene or polypropylene.

The fibrillated yarn 12 or monofilament yarn 12 has a shape similar to that of natural grass when planted in the fabric layer 11.

The fibrillated yarn 12 or the monofilament yarns 12 may have, for example, eight cleaved sites (for fibrillated yarn 12) or eight filaments (for monofilament yarn 12). .

In this case, in the case of planting according to the present invention, it may be configured in the shape of a single grass having 16 branched branches. However, the number of cracks or the number of strands of the filament is not limited to eight, it can be naturally understood by those skilled in the art that can be adjusted to any number in consideration of the shape or overall appearance of the artificial grass to be formed.

Here, the polyolefin yarns 12 on the bottom surface of the fabric layer 11 are thermally fused to the bottom surface of the bubble layer.

The yarn 12 is made of monofilament yarn or fibrillated yarn 12, and the functional material is coated on the surface of the yarn 12 having such a material so that the yarn 12 can be restored to its original shape even when external force is applied.

In addition, the functional material 113 applies any one of an acrylic resin, an epoxy resin, a polyurethane resin, or a styrene-butadiene rubber (SBR) resin.

The yarn 12 coated with the functional material 113 has ground cover properties such as the dielectric density of the stadium where artificial turf is installed, wear resistance that can withstand damage during a game, and regeneration and elasticity that can be recovered quickly after the damage. And a long green period can be guaranteed.

As such, the device for applying and coating a functional material on the yarn is implemented as follows.

That is, the artificial turf pile 10 is laid in a state in which the pile is repeatedly stacked so as to face in the lower direction, and the functional grass 113 is coated on the yarn 12 through the coating unit 110 by transferring the artificial turf pile 10 at a constant speed through the transfer means 120. Allow to dry and coat.

To enable this, the artificial turf coating apparatus 100 draws and transfers the overlaid artificial turf file 10, so that the yarn 12 faces downward.

Here, the conveying means 120 is composed of a first roller 121, a second roller 122, a third roller 123.

The first roller 121 is installed at the same height as the coating unit 110, the second roller 122 and the third roller 123 is provided side by side on the upper side of the first roller 121, the artificial turf pile is stacked a plurality of times the second roller And the first roller is moved in the order of the first roller.

As described above, the artificial turf pile 10 in a state in which the plurality of circuits are stacked is moved through the coating unit 110 while the moving direction is changed through the transfer means 120. At this time, the yarn 12 is immersed in the container 111 to be described later so that the yarn 12 in the artificial turf file 10 is directed to the bottom.

The container 111 forms a space 112 having an upper opening therein to fill the functional material 113, while allowing the yarn 12 to be submerged in the functional material 113 while moving the pile.

In addition, the submerged yarn 12 is dried by hot air provided into the coating unit 110 so that the functional material 113 is coated on the yarn 12 surface.

Here, the functional material is any one of an acrylic resin, an epoxy resin, a polyurethane resin, or a styrene-butadiene rubber (SBR) resin is applied to satisfy the durability of the yarn and its original state.

The artificial turf pile 10 is transferred through rollers at other places via the coating unit 110.

As such, the functional material 113 is coated with a yarn 12 to have a wear resistance of the yarn 12, a regeneration force and elasticity that is restored to its original shape within a short time after being damaged.

As a result, the yarn 12 of the artificial turf has a good texture and an improved cushioning role, so it is safe from the risk of injury and prevents scratches due to friction when slipped.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

10: artificial grass pile 11: fabric layer
12: yarn 100: artificial grass coating device
110 coating part 111 container
112: space 113: functional material
120: transfer means 121: first roller
122: second roller 123: third roller

Claims (8)

Artificial grass coated with a functional material, characterized in that the functional material is applied to the yarns penetrated through the fabric layer.
Fabric layer and
Transfer the artificial turf pile consisting of yarns penetrated through the fabric layer, and the yarns are directed downward,
While passing through the coating to dry the fabric by hot air,
The artificial turf coating apparatus, characterized in that the yarn to be transported by installing a container containing the functional composition is immersed in the functional composition to be coated by hot air after applying the functional material to the yarn surface.
The method of claim 1,
The yarn is artificial grass coated with a functional material, characterized in that the polyolefin (Polyolefin) fibers or polyamide (Polyamide) fibers.
The method of claim 1,
The fabric layer is artificial turf coated with a functional material, characterized in that the woven or knitted or non-woven form.
The method of claim 1,
The yarn is artificial grass coated with a functional material, characterized in that the monofilament yarn or fibrils.
The method of claim 1,
The functional material is artificial grass coated with a functional material, characterized in that to apply any one selected from acrylic resin, epoxy resin, polyurethane resin or styrene-butadiene rubber (SBR) resin.
The method of claim 2,
The container is an artificial turf coating apparatus, characterized in that to form a space having an upper opening therein to fill the functional material, so that the yarn is submerged in the functional material while the artificial grass pile is moved. The method of claim 2,
The coating unit is provided with a conveying means in the front, the first roller is installed in front of the coating, and the second roller and the third roller in parallel with the front upper portion of the first roller to guide the conveying direction while transferring the file Artificial turf coating device, characterized in that configured to.

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