KR20230153195A - Hybrid turf roll with improved viability and hybrid turf construction method using the same - Google Patents

Abstract

The present invention relates to a hybrid turf roll and a hybrid turf construction method using the same. More specifically, it relates to a hybrid turf roll with improved adhesion and a hybrid turf construction method using the same.
The hybrid turf roll according to the present invention includes a lower support roll having a plurality of perforated holes for natural grass vegetation and having artificial turf tassels patterned in the non-perforated area;
A natural grass soil layer filled between the artificial turf structures modeled on the lower support roll;
It includes natural grass vegetated on the natural grass culture soil layer.

Description

Hybrid turf roll with improved viability and hybrid turf construction method using the same {Hybrid turf roll with improved viability and hybrid turf construction method using the same}

The present invention relates to a hybrid turf roll and a hybrid turf construction method using the same. More specifically, it relates to a hybrid turf roll with improved adhesion and a hybrid turf construction method using the same.

Natural grass has many advantages in terms of being eco-friendly, but it is difficult to maintain and the grass dies when stepped on when used frequently, making it difficult to use for playgrounds or sports facilities.

Accordingly, artificial turf that embodies the texture of natural grass with a thin film is widely used. Artificial turf fields are made by laying an artificial turf mat with artificial turf tufts planted on a compacted soil layer, and silica sand is laid to a predetermined thickness between the tufts of artificial turf planted on the mat to erect the tufts of artificial turf and at the same time reduce the weight of the silica sand. This is done by fixing the artificial turf mat to the floor and placing shock-absorbing rubber chips on top of the silica sand layer. Here, the artificial grass mat planted with artificial grass tufts has a structure in which the artificial grass tufts penetrate and are fixed to a base material knitted with fibers such as PP, PE or PET in a U-shape, and the artificial grass tufts planted on the back of the mat are used. To prevent the core from being pulled out, back coating is done using a binder. In addition, backcoating causes a decrease in the drainage properties of artificial turf, so the mat is perforated to solve this problem.

These artificial turf stadiums have the advantage of being convenient to install and maintain, and being usable for a long period of time. However, as they are artificial structures, they are not environmentally friendly, and it is difficult to embody the texture of natural grass, and they are also subject to temperature and humidity in the summer. There are problems such as user inconvenience and the generation of microplastics due to long-term use.

There continues to be a demand for natural-artificial turf hybrid playgrounds by combining artificial turf and natural grass to solve these problems.

Republic of Korea Patent No. 2168800 discloses a hybrid lawn module that sows grass, grows it to the previous level, and then plants artificial grass in the soil where the grass was planted. This causes the problem of having to plant artificial grass between natural grass and damaging the roots of natural grass in the process.

Korean Patent No. 2265557 discloses a hybrid grass module in which a natural grass module is formed on a double perforated support plate in which natural grass is planted, and an artificial grass module in the form of perforated foam paper is attached to the natural grass module. However, this method has a problem in that the structure is very complex and it is difficult to move and construct the hybrid grass module.

The problem to be solved by the present invention is to provide a new hybrid type turf roll in which natural grass grows together with artificial turf.

The problem to be solved by the present invention is to provide a method of manufacturing a new hybrid type grass roll in which natural grass grows on artificial grass.

The problem to be solved by the present invention is to provide a method of constructing a hybrid type turf field using a new hybrid type turf roll in which natural grass grows on artificial turf together.

In order to solve the above problems, the present invention

a lower support roll having a plurality of perforated holes for natural grass vegetation and having artificial turf tassels patterned in the non-perforated area;

A natural grass soil layer filled between the artificial turf structures modeled on the lower support roll;

A hybrid turf roll comprising natural turf vegetated on the natural turf soil layer is provided.

In the present invention, the artificial turf roll has a predetermined width and extends long, and includes a lower backup roll that can be wound in the form of a scroll, an artificial turf tuft modeled on the lower backup roll by tufting, and an artificial turf tuft. It includes a back coating layer that fixes to the lower backup roll, and a plurality of drilling holes for natural grass vegetation penetrating the lower backup roll and the back coating layer.

In the present invention, the drilling hole for natural grass vegetation may be a circular or polygonal drilling hole, and the natural grass drilling holes are formed throughout the lower support roll so that the roots of the grass growing in the culture soil layer can uniformly penetrate the lower support plate. It can be formed uniformly throughout.

In the present invention, the drilling holes for natural grass vegetation may be formed regularly in a grid shape at predetermined intervals along the width and length of the lower backup roll.

In the present invention, the area of the perforated hole for natural grass vegetation formed in the artificial grass roll can be adjusted by the ratio of natural grass and artificial grass planted in the hybrid grass, and is preferably 10% of the total lower support roll area. It may be more than 15%, more preferably 20% or more, and can be adjusted to an area of 20 to 40% as appropriate.

In the practice of the present invention, if the area of the perforation hole for natural grass vegetation is less than the above area, it is difficult for natural grass growing in the culture soil layer to escape from the lower part of the lower support roll, which may interfere with the vegetation of natural grass, and the perforation If the hole area is too large, it may be difficult to maintain the rigidity required for the lower backup roll.

In the practice of the present invention, the foam paper constituting the lower support roll can be used as a conventional foam paper used in artificial turf.

In the practice of the present invention, the artificial turf tuft fixed to the lower support roll may be made of polyethylene. In the practice of the present invention, low-density polyethylene, high-density polyethylene, linear low-density polyethylene, etc. may be used as the polyethylene resin forming the artificial turf tuft.

In the practice of the present invention, the height of the artificial turf tufts may be 5 to 15 cm, preferably 5 to 12 cm, from the upper surface of the lower support roll.

In the present invention, the natural grass soil layer provides soil on which artificial grass planted on the lower support roll can be erected and natural grass can grow. The soil may be natural soil containing fertilizer suitable for the vegetation of natural grass.

In the practice of the present invention, the thickness of the natural turf soil layer may be about 2 to 10 cm so that the artificial turf patterned on the lower support roll can protrude above the soil layer, preferably 3 cm. It may be ~8 cm thick.

In the present invention, the natural grass may be grass seeds, adult grass, young grass, or grass stems and/or roots grown in a natural grass soil layer. In one embodiment of the invention, the natural grass may be a grass turf, and the grass turf may be a grass turf having a size suitable for the space between the artificial turf tufts.

In the present invention, the hybrid grass roll can be installed to decorate a flat surface such as a playground, garden, or rooftop, or a slope after construction.

In another aspect, the present invention

A lower support roll having a plurality of perforated holes for natural grass vegetation and having artificial turf tassels patterned in the non-perforated area,

A layer of natural grass culture soil filled between the artificial turf structures modeled on the lower support roll, and

Constructing a first hybrid grass roll containing natural grass vegetated on the natural grass soil layer on a first land surface;

growing natural grass vegetated on a natural grass culture soil layer in the first hybrid grass roll constructed on the first land surface, thereby generating a second hybrid grass roll;

It provides a hybrid lawn construction method including the step of winding the second hybrid lawn roll into a roll shape and unfolding it on the second land surface to construct the hybrid lawn.

In the practice of the present invention, the hybrid grass roll construction method further includes the step of growing the grass so that the roots of the grass cultivated in the natural grass soil layer adhere to the second land surface through the perforation hole.

According to the present invention, a hybrid turf roll that is convenient to construct is provided. The hybrid grass roll according to the present invention is in the form of a roll and is convenient because it can be installed uniformly and quickly over a large area. It can be moved and installed after the natural grass has sufficiently grown in the natural grass culture soil layer, thereby increasing the growth rate of the natural grass. there is.

In addition, when the artificial turf tufts and the foam paper that make up the hybrid turf roll are made of polyethylene, the artificial turf tufts and the lower support roll can be recycled together when discarded, making it possible to manufacture an eco-friendly product.

1 is a cross-sectional view of a hybrid turf roll according to the present invention.
Figure 2 is a plan view of the lower support roll 100 forming the hybrid turf roll according to the present invention in an unfolded state.
Figure 3 is a diagram showing the construction steps of the first hybrid turf roll according to the present invention. Figure 3a shows a state in which a lower support roll containing artificial turf tufts is spread out on the first ground, and Figure 3b shows a state in which a culture soil layer containing grass seeds is laid on the lower support roll spread out in the first ground.
Figure 4 is a cross-sectional view of the lower support plates 100 with a model of artificial turf forming a hybrid turf module according to the present invention combined.

Hereinafter, the present invention will be described in more detail through examples. The following examples are not intended to limit the invention, but rather to illustrate the invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in various different forms. The present embodiments are only provided to ensure that the disclosure of the present invention is complete, and that the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. It is provided to fully inform those with knowledge of the scope of the invention, and the present invention is only defined by the scope of the claims. Additionally, the same reference numerals refer to the same elements throughout the specification.

As shown in Figures 1 to 5, the hybrid grass roll 10 formed of natural grass and artificial grass together has a plurality of perforated holes 110 through which the roots of natural grass can pass. Bubble paper 130 including a non-perforated area 120 between the perforated holes, and a back coating layer 140 for fixing the artificial turf tufting 200 coated on the lower surface of the non-perforated area 120. ) and a lower support roll (100) including;

an artificial turf tuft (200) modeled on the lower support roll (100) by tufting;

A natural turf culture soil layer (300) filled between the artificial turf tufts (200) while standing the artificial turf tufts (200) up; and

It consists of natural grass seeds (400) planted in the culture soil layer (300).

The bubble paper 130 forming the lower backup roll 100 uses polyolefin-based bubble paper. The polyolefin-based foam paper uses polypropylene-based foam paper or polyester-based foam paper.

The perforation hole 110 formed in the lower backup roll 100 is a circular hole with a diameter of about 10 to 15 mm, and preferably has the same diameter.

The perforation holes are formed at intervals of 5 to 20 mm, preferably at equal intervals, along the length and width directions of the lower backup roll, and are formed in a grid shape on the lower backup roll.

The size of the drill holes and the distance to adjacent drill holes are controlled by the ratio of natural grass and artificial grass planted.

The perforation area, which is the sum of the areas of the perforation holes 110 for natural grass vegetation formed in the lower support roll 100, is adjusted to 20 to 40% of the area in the hybrid lawn.

The artificial turf 110 modeled on the lower support roll 100 is manufactured by melt-extruding polyethylene resin using a twin extruder, and is mixed with additives and extruded. The total content of the additive may be in the range of 1 to 10% by weight in order to impart additive properties to the artificial turf liquor 110. Additives that make up artificial turf can be a mixture of pigments, UV stabilizers, flame retardants, thickeners, and anti-foaming agents.

Pigment is used to create a green color in artificial turf, and is used in an amount adjusted to 10 to 50% by weight among additives. UV stabilizers are used to prevent the artificial turf composition from discoloring or deteriorating due to light, and are used in the range of 1 to 20% by weight among additives. Flame retardants are used to provide flame retardant properties to artificial turf compositions, and are used in an amount of 10 to 50% by weight among additives. A thickener is used to control the viscosity of the molten artificial turf composition, and is used in an amount of 5 to 20% by weight among additives. Defoaming agents are used to remove foam from molten artificial turf compositions, and are used in an amount of 1 to 10% by weight among additives.

The height of the artificial turf tuft 200 modeled on the lower support plate 100 can be adjusted appropriately, and is formed to have a length of, for example, 5 to 10 cm. The artificial turf tuft 200 may be composed of 6 to 20 strands, and the length of each strand may be the same or different. When the lengths of the artificial turf tufts 200 are different, the height of the short artificial turf tufts is formed to be higher than the height of the culture soil layer 300 in order to prevent short strands from sticking to the culture soil layer 300.

The artificial turf tassel 200 may be coupled to the foam paper 130 using a tufting method in which the artificial turf tassel penetrates the foam paper 130 in a 'U' shape. Here, even if the artificial turf tufts 200 are bonded to the foam paper by tufting, those skilled in the art will know that the artificial turf tufts are bonded to the foam paper by bundling or, if made of polyethylene in the same way as the artificial turf tufts, are bonded by heat fusion. It is understandable that it is not excluded.

The back coating 140 formed on the lower surface of the bubble paper 130 is coated on the lower surface of the bubble paper and acts as a binder layer to bind the artificial turf tufts 200 passing through the lower surface in a tufting manner. The back coating layer may be a polyurethane-based and/or acrylic-based coating layer, and in this case, a polyurethane binder is used. The polyurethane binder can be used in a two-component or single-component form, and can be appropriately selected depending on the coating equipment and coating environment. Here, a one-component polyurethane binder is used.

The natural grass culture soil layer 300 that forms the hybrid grass roll 10 according to the present invention is soil containing fertilizers that are helpful for the vegetation of natural grass. The soil is used in the area where the hybrid grass roll 10 is installed to facilitate adaptation, for example, in the same country or local autonomous region.

The culture soil layer 300 is filled to be about 3 to 6 cm lower than the height of the artificial turf liquor 200 to prevent the artificial turf liquor 200 from getting wet.

In the present invention, the natural grass seeds planted in the natural grass culture layer 300 forming the hybrid grass roll 10 can be grass suitable for the climate of the area where the hybrid grass roll 10 is installed or manufactured. , selected appropriately by a person skilled in the art.

The hybrid turf as described above is constructed through the first hybrid turf roll 11 construction stage, the second hybrid turf roll 12 manufacturing stage, and the second hybrid turf roll 12 construction stage.

The first hybrid turf roll 11 construction stage includes a lower backup roll 100 having perforated holes 110 for natural grass vegetation and an artificial turf tuft 200 in the non-perforated area 120, and a lower backup roll. A first hybrid turf roll 11 containing a natural grass culture layer 300 filled between the artificial turf 200 modeled at 100 and a natural grass planted on the natural grass culture layer is placed on the first ground. This is the construction stage at (20).

After spreading the lower support roll 100 on which the artificial turf tassel 200 is modeled on the first ground 20, a natural grass culture soil layer 300 mixed with artificial turf seeds is laid to form a first hybrid turf roll 11. manufactures. The lower support roll 100 is unfolded by the weight of the culture soil layer 300 filled at the top and is fixed to the first ground 20.

The manufacturing step of the second hybrid lawn roll (12) is to grow natural grass vegetated on the natural grass culture soil layer in the first hybrid lawn roll (10) installed on the first ground (20), thereby producing the second hybrid lawn roll (12). ) is the step to create.

As appropriate water and sunlight are supplied to the hybrid grass roll 10, the cultured grass seeds grow, take root in the culture soil layer 300, and leaves grow upward.

The construction step (S30) of the second hybrid lawn roll 12 is a step of forming the second hybrid lawn roll 12 into a roll shape, moving it, and then unfolding it on the second land surface 30 to construct a hybrid lawn.

When roots grow and leaves germinate in the culture soil layer 300, the hybrid grass roll 10 is rolled back into a roll shape, moved, and spread on the second ground 30 to form a hybrid lawn.

After the hybrid grass roll 10 is installed on the second ground 30, when the grass grown in the culture soil layer 300 is grown, the roots of the grass grown in the culture soil layer 300 are formed in the perforated hole in the lower support roll 100. It grows safely to the second ground through (110).

The perforated hole 110 also functions as a drainage hole through which water or rain supplied during the grass vegetation process is drained.

10: Hybrid type grass roll
100: Lower support roll
110: drilled hole
120: Non-perforated area
200: Artificial turf liquor
300: Culture soil layer
400: natural grass

Claims (7)

a lower support roll having a plurality of perforated holes for natural grass vegetation and having artificial turf tassels patterned in the non-perforated area;
A natural grass soil layer filled between the artificial turf structures modeled on the lower support roll;
A hybrid grass roll comprising natural grass vegetated on the natural grass soil layer. According to paragraph 1,
A hybrid turf roll, characterized in that the perforation area of the lower support roll is 20 to 40% of the area of the base paper. According to paragraph 2,
A hybrid turf roll, characterized in that the perforated holes are arranged in a lattice form. A lower support roll having a plurality of perforated holes for natural grass vegetation and having artificial turf tassels patterned in the non-perforated area,
A layer of natural grass culture soil filled between the artificial turf structures modeled on the lower support roll, and
A first hybrid turf roll (10) construction step (S10) of constructing a first hybrid turf roll containing natural grass vegetated on the natural turf soil layer on the first ground;
A second hybrid grass manufacturing step (S20) of growing natural grass vegetated on a natural grass culture soil layer in the first hybrid grass roll constructed on the first ground to create a second hybrid grass roll;
A hybrid turf construction method comprising a second hybrid turf roll construction step (S30) of winding the second hybrid turf roll into a roll shape and unfolding it on the second ground to construct hybrid turf. According to paragraph 4,
A hybrid lawn construction method further comprising the step of allowing the roots of the grass to grow to the second ground through the perforated hole after constructing the second hybrid lawn roll. According to paragraph 4,
A hybrid lawn construction method, wherein the natural grass included in the first hybrid lawn roll is grass seed. According to paragraph 4,
A method of constructing a hybrid lawn, wherein the natural grass included in the first hybrid lawn roll is one or more selected from the group consisting of adult grass, young grass, grass stems, grass roots, and grass turf.