KR102544774B1 - Eco planting mat for protecting sloping surface and manufacturing method thereof - Google Patents

Abstract

Provided is an eco-friendly vegetation mat for slope protection that is not harmful to the environment and is biodegradable over a long period of time. According to one embodiment of the present invention, provided is an eco-friendly vegetation mat for slope protection containing a composite fabric on which plant seeds are located on the surface or inside. The composite fabric includes: nonwoven fabric made of primary natural fibers; and fabric attached to at least one side of the nonwoven fabric and made of a second natural fiber.

Description

Eco-friendly vegetation mat for slope protection and its manufacturing method {ECO PLANTING MAT FOR PROTECTING SLOPING SURFACE AND MANUFACTURING METHOD THEREOF}

The present invention relates to an eco-friendly vegetation mat for slope protection and a method for manufacturing the same, and more specifically, to an eco-friendly vegetation mat for slope protection that is biodegradable after a long period of time and does not produce harmful compounds even when in contact with contaminated water in a river, and a method for manufacturing the same it's about

In general, landslides or bank collapses may occur due to the rapid flow of running water on slopes such as river embankments or roads. Various types of structures are constructed to protect the slope while preventing such accidents.

As a method of constructing these structures, a concrete pouring method in which concrete modtar is directly poured on the corresponding surface, a stone attachment method in which stones or concrete blocks are stacked and combined with a binder such as mortar, a concrete block method, and a large natural stone or artificial stone are used. A stone stacking method in which simple stacking and a gabion method in which stone-filled nets are stacked along a slope are known.

Among these slope construction methods, the concrete pouring method subsides when the ground subsides, so ground subsidence can be visually and easily identified to prevent large-scale disasters caused by the collapse of revetment structures, but it is not friendly to the surrounding environment and ecosystem. There is a problem of destroying the stone, and the stone attaching method, the concrete block method, and the stone stacking method are mostly constructed using relatively large stones, which require a lot of equipment during construction and have many difficulties in obtaining stones.

Recently, accidents have been prevented by planting grass or trees on slopes. However, there is a problem in that it takes a long time for grass or tree planting to completely grow and have a solid slope. In order to solve these problems, vegetation mats have been developed and used. However, conventional vegetation mats have a problem in that planting materials such as grass do not grow properly because the germination rate of seeds is low, and soil runoff is highly likely to occur due to a rapid flow of running water when localized heavy rain occurs.

In addition, conventional nonwoven fabrics used as substrates for plant seeds to germinate in vegetation mats are generally made of synthetic fibers such as polypropylene, and have a problem in that they promote the production of harmful compounds by contacting with contaminated water of contaminated rivers. Due to this, not only endocrine disruptors are produced, but even after a long period of time, synthetic fibers do not decompose and remain permanently in the river. As a result, the nonwoven fabric made of the remaining synthetic fibers caused mass death and deformity of river organisms.

An object of the present invention is to provide an eco-friendly vegetation mat for slope protection that is biodegradable over a long period of time without being harmful to the environment.

Another object of the present invention is to provide an eco-friendly planting mat for slope protection that increases the germination rate of seeds because the soil does not flow out even by the rapid flow of running water.

Another object of the present invention is to provide a method for manufacturing the eco-friendly vegetation mat for slope protection.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

One embodiment of the present invention for achieving the above object is an eco-friendly vegetation mat for slope protection comprising a composite fabric in which plant seeds are located on the surface or inside, the composite fabric is a nonwoven fabric made of first natural fibers and the nonwoven fabric It is attached to at least one surface and provides an eco-friendly vegetation mat for slope protection comprising a fabric made of a second natural fiber.

The solution to the above problems does not enumerate all the features of the present invention. Various features of the present invention and the advantages and effects thereof will be understood in more detail with reference to the following specific examples.

According to an embodiment of the present invention, it is possible to prevent harmful compounds from being produced even in contact with contaminated water in a polluted river, and to provide a favorable ecological environment for river organisms through a composite fabric that biodegrades over a long period of time. It can increase the germination rate of seeds because the soil does not flow out even by the rapid flow of running water.

In addition to the above effects, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

1 is an exploded perspective view of an eco-friendly vegetation mat for slope protection according to an embodiment of the present invention.

Hereinafter, each configuration of the present invention will be described in more detail so that those skilled in the art can easily practice it, but this is only one example, and the scope of the present invention is Not limited.

In the present specification, 'coconut fiber' is a natural fiber extracted from the outer shell of a coconut fruit and is specifically defined as coir, and 'thickness and length of fiber' is defined as the thickness and length of one fiber.

One embodiment of the present invention is an eco-friendly vegetation mat for slope protection comprising a composite fabric in which plant seeds are located on or inside, wherein the composite fabric is attached to a nonwoven fabric made of first natural fibers and at least one surface of the nonwoven fabric, It provides an eco-friendly vegetation mat for slope protection comprising a fabric made of second natural fibers. According to an embodiment of the present invention, it is possible to prevent harmful compounds from being produced even in contact with contaminated water in a polluted river, and to provide a favorable ecological environment for river organisms through a composite fabric that biodegrades over a long period of time. It can increase the germination rate of seeds because the soil does not flow out even by the rapid flow of running water.

Hereinafter, the configuration of the present invention will be described in more detail with reference to FIG. 1 .

1. Eco-friendly vegetation mat for slope protection

1 is an exploded perspective view of an eco-friendly vegetation mat for slope protection according to an embodiment of the present invention.

Referring to FIG. 1, the vegetation mat 100 for eco-friendly slope protection according to the present invention includes a composite fabric 10 in which plant seeds are located on the surface or inside. Specifically, the composite fabric 10 includes a nonwoven fabric made of first natural fibers and a fabric made of second natural fibers attached to at least one surface of the nonwoven fabric.

Conventional non-woven fabrics, where plant seeds germinate in vegetation mats, are generally made of synthetic fibers and have a problem of promoting the production of harmful compounds by contact with contaminated water in contaminated rivers. Due to this, not only is it exposed to environmental hormones, but the synthetic fibers are not decomposed and remain permanently in the river, causing collective death and deformity of river organisms. For example, non-woven fabrics made of synthetic fibers such as polypropylene have low temperature, humidity, and low biodegradability by microorganisms, even after a long period of time, and remain permanently to destroy river ecosystems. Using the composite fabric according to an embodiment of the present invention can prevent harmful compounds from being produced even when in contact with contaminated water in a polluted river, and can provide a favorable ecological environment for river organisms even after a long period of time. .

Plant seeds according to the present invention may be, for example, gold gyuk, marguerite, stringy greens, etc. in spring, and may be golden pheasant's leg, water lily, bee yellow, buddha flower, sagebrush, pheasant's amaranth, dianthus, etc. in summer, In autumn, it can be reeds, mountain chrysanthemum, gujeolcho, stratified flower, moonroot grass, water silver grass, sukryeong, silver grass, etc. However, the technical idea of the present invention is not limited thereto, and appropriate seeds may be selectively used according to the flow rate of the river or the environment or aesthetics of the area.

The plant seed according to the present invention may be placed inside or on the surface of the composite fabric, for example, in an amount of 10 to 20 g per 1 m ² of the composite fabric. The content of these plant seeds can be appropriately adjusted according to the slope of the slope and the flow rate of the river.

The nonwoven fabric according to the present invention is a material capable of absorbing water, and is installed on a slope to absorb rainwater or artificial watering, thereby helping the germination and growth of plant seeds. The first natural fibers may be composed of hemp fibers. The hemp fiber has strong hydrophilicity and can help germination and growth of plant seeds.

The tensile strength of the nonwoven fabric may be 30 to 70N in the longitudinal direction and 30 to 70N in the width direction according to the test standard KS K 0743 grab method, and the tensile elongation of the nonwoven fabric in the longitudinal direction according to the test standard KS K 0743 grab method 60 to 120%, and 60 to 120% in the width direction.

The thickness of the nonwoven fabric may be, for example, 0.5 to 3.0 mm, specifically 1.0 to 3.0 mm.

The thickness of the first natural fiber may be 1.0 to 2.5 denier, specifically 1.2 to 2.5 denier, and more specifically 1.5 to 2.5 denier. When the thickness of the first natural fiber satisfies the above numerical range, a composite fabric having sufficient physical properties that is less affected by the rapid flow of running water can be realized.

The length of the first natural fiber may be, for example, 32 to 51 mm (millimeter).

The weight per unit area of the nonwoven fabric may be 50 to 200 g/m ² , specifically 80 to 150 g/m ² . If the weight per unit area of the nonwoven fabric is less than the above numerical range, there may be a problem of not being able to control the outflow of soil, and if it exceeds the above numerical range, the soil may be protected, but the plant seeds may not take root properly. there is.

The fabric according to the present invention is a fabric in which warp yarns and weft yarns are crossed at right angles to each other, and means a fabric in which a vertical warp yarn and a horizontal weft yarn are woven by crossing each other up and down. The warp and weft yarns may be made of second natural fibers. Specifically, the second natural fiber may be any one selected from the group consisting of cotton fiber, hemp fiber, and combinations thereof. The second natural fiber is composed of one selected from the group consisting of cotton fiber, hemp fiber, and combinations thereof, and may not generate harmful compounds even when reacting with contaminated water, thereby improving the ecological environment of the river. .

The thickness of the second natural fiber may be 1.0 to 3.8 denier, specifically 1.5 to 3.0 denier, more specifically 1.5 to 2.0 denier. When the thickness of the second natural fiber satisfies the above numerical range, it is possible to realize a composite fabric with sufficient physical properties that is less affected by the rapid flow of running water.

The length of the second natural fiber may be, for example, 35 to 40 mm (millimeter).

The tensile strength of the fabric may be 400 to 500 N or more in the longitudinal direction and 400 to 500 N in the width direction according to the test standard KS K 0743 grab method, and the tensile elongation of the fabric is in the longitudinal direction according to the test standard KS K 0743 grab method 10 to 50%, and may be 20 to 40% in the width direction.

The fabric may have a thickness of 0.5 to 4.0 mm, specifically 1.0 to 3.0 mm. When the thickness of the fabric is less than the above numerical range, the strength of the composite fabric may be lowered, and when the thickness exceeds the above numerical range, a problem of excessive increase in weight may occur.

The nonwoven fabric and the fabric according to the present invention may be attached to each other by needle punching to form a composite fabric. Specifically, the composite fabric may be formed by passing the nonwoven fabric and the fabric through a needle loom, and then reciprocating up and down a needle plate to which the special needle is attached. The functional effects of the fabric of the second natural fiber having excellent strength and the nonwoven fabric having relatively low strength can be realized as they are by bonding the nonwoven fabric and the fabric by the needle punching method rather than the method of bonding with an adhesive.

The composite fabric 10 according to the present invention can be further improved in strength by attaching the nonwoven fabric and the fabric. As the strength of the composite fabric is further improved, not only can it support the plants well, but it can also implement an effect that can withstand the rapid flow of running water.

According to another embodiment of the present invention, fertilizer may be applied to the surface of the composite fabric 10. Specifically, the fertilizer helps seed germination and growth, and can help planting materials such as grass grow well. The fertilizer may be a conventional fertilizer in the art.

The vegetation mat 100 for eco-friendly slope protection according to an embodiment of the present invention may include a first net layer 20 disposed on the composite fabric 10. Since the first net layer 20 has a net structure, it can serve as a shock absorber that firmly supports the lower layer and absorbs shock. In addition, the first net layer 20 can prevent plants from being swept toward the waterway for a certain period of time from germination until they are deeply rooted in the soil, and when the river is flooded, the flow rate of the river can be controlled slowly there is.

The vegetation mat 100 for eco-friendly slope protection according to an embodiment of the present invention may include a filling mat layer 30 disposed on the first net layer 20 to maintain the shape of the vegetation mat. The fiber constituting the filling mat layer 30 may be any one selected from the group consisting of rice straw, coconut fiber, hemp fiber, and bamboo fiber, and may preferably be made of coconut fiber. The filling mat layer 30 is composed of coconut fiber and can prevent harmful compounds from being produced even when in contact with contaminated water in a polluted river, and can provide a favorable ecological environment for river organisms even after a long period of time. .

The vegetation mat 100 for eco-friendly slope protection according to an embodiment of the present invention may include a second net layer 40 disposed on the filling mat layer 30. Specifically, the filling mat layer 30 may be disposed between the first net layer 20 and the second net layer 40 . The second net layer 40 has a net structure, so it can serve as a shock absorber that firmly supports the lower layer and absorbs shock.

Fibers constituting the first net layer 20 and the second net layer 40 may be coconut fibers. The first net layer 20 and the second net layer 40 are composed of coconut fibers and can prevent harmful compounds from being generated even when in contact with contaminated water in a polluted river, and are biodegradable over a long period of time. Possible to provide a favorable ecological environment for river organisms.

The filling mat layer 30 may be disposed between the first net layer 20 and the second net layer 40 to be more firmly fixed. Accordingly, the composite fabric can be better supported on the slope.

2. Manufacturing method of eco-friendly vegetation mat for slope protection

Another embodiment of the present invention can provide a method for manufacturing an eco-friendly vegetation mat for slope protection. The foregoing parts and repeated descriptions are briefly described or omitted.

Another embodiment of the present invention comprises forming a first net layer on the composite cloth on which the plant seeds are located on the surface or inside; It is possible to provide a method for manufacturing an eco-friendly slope protection vegetation mat comprising the step of forming a filling mat layer on the first net layer and the step of forming a second net layer on the filling mat layer. Specifically, the composite fabric may include a nonwoven fabric made of first natural fibers and a fabric made of second natural fibers attached to at least one surface of the nonwoven fabric.

The nonwoven fabric and the fabric may be attached by a needle punching method.

Hereinafter, an embodiment of the present invention will be described in detail so that those skilled in the art can easily practice it, but this is only one example, and the scope of the present invention is Not limited.

[Manufacturing Preparation Example 1: Manufacture of Composite Cloth]

A nonwoven fabric having a width of 200 cm X a length of 5,000 cm X a thickness of 3 mm was prepared using cotton fibers derived from a cotton tree having a thickness of 2 denier and a length of 50 mm. Separately, a fabric having a width of 200 cm X a length of 5,000 cm X a thickness of 3 mm was prepared using hemp fibers having a thickness of 2 denier and a length of 35 mm. Raw cotton made of cotton fibers is evenly spread through a carding machine, and then the thickness of the nonwoven fabric is adjusted through the first needle punching process. In the secondary needle punching process, a final composite fabric was prepared by combining the fabric and the nonwoven fabric using a winder.

[Production Example 1: Production of Vegetation Mat]

<Example 1: Manufacturing of eco-friendly vegetation mat for slope protection>

Preparing a composite fabric (thickness: 6.0 mm) according to Preparation Preparation Example 1 in which plant seeds are located on the surface or inside, forming a first net layer made of coconut fibers on the composite fabric, the first An eco-friendly vegetation mat for slope protection was manufactured through the steps of forming a filling mat layer made of coconut fiber on the net layer and forming a second net layer made of coconut fiber on the filling mat layer.

<Comparative Example 1: Vegetation mat containing polypropylene nonwoven fabric>

A vegetation mat was prepared in the same manner as in Example 1, but a commercially available polypropylene nonwoven fabric having the same thickness was used instead of the composite fabric according to Preparation Preparation Example 1.

[Experimental Example 1: Evaluation of biodegradability of vegetation mat for eco-friendly slope protection]

In order to evaluate the biodegradability of the vegetation mat specimen according to Preparation Example 1, a biodegradability evaluation method by a soil burial test was used for 5 months. Specifically, referring to the experimental method presented in AATCC Technical Method 30-1993, the sample was decomposed by burying it in a box containing natural soil, and water was supplied daily during the decomposition. The cutting strength of the specimen before and after soil embedding was measured using SINTECH1G (MTS) under conditions of a crosshead speed of 5 cm/min and a load of 500 kg. Biodegradability (%) is measured by the loss rate of tensile strength, and the higher the biodegradability value, the better the biodegradability.

Example 1 Comparative Example 1 Biodegradability (%) 90% 50%

Referring to Table 1, it can be confirmed that Example 1 has significantly higher biodegradability than Comparative Example 1. Considering the above experimental results, through an embodiment of the present invention, it is possible to prevent harmful compounds from being generated even when in contact with contaminated water in a polluted river, and to benefit river organisms through a composite fabric that biodegrades over a long period of time. It can be inferred that an ecological environment can be provided and the germination rate of seeds can be increased because the soil does not leak even by the rapid flow of running water.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also present. It falls within the scope of the right of invention.

10: composite cloth
20: first net layer
30: filling mat layer
40: second net layer
100: Vegetation mat for eco-friendly slope protection

Claims (13)

Complex bracts in which plant seeds are located on the surface or inside;
a first net layer disposed on the composite fabric;
a filling mat layer disposed on the first net layer; and
a second net layer disposed on the filling mat layer; As an eco-friendly vegetation mat for slope protection containing,
The composite fabric,
A nonwoven fabric made of first natural fibers and
It is attached to at least one surface of the nonwoven fabric and includes a fabric made of a second natural fiber,
The nonwoven fabric and the fabric are combined and attached by a needle punching method,
The tensile elongation of the fabric is 10 to 50% in the longitudinal direction and 20 to 40% in the width direction according to the test standard KS K 0743 grab method,
The tensile elongation of the nonwoven fabric is 60 to 120% in the longitudinal direction and 60 to 120% in the width direction according to the test standard KS K 0743 grab method,
The weight per unit area of the nonwoven fabric is 80 to 150 g/m ² ,
The first natural fiber is hemp fiber,
The second natural fiber is any one selected from the group consisting of cotton fiber, hemp fiber, and combinations thereof,
The fibers constituting the first net layer and the second net layer are coconut fibers, an eco-friendly vegetation mat for slope protection. According to claim 1,
The thickness of the first natural fiber is 1.0 to 2.5 denier,
Eco-friendly vegetation mat for slope protection. According to claim 1
The thickness of the second natural fiber is 1.0 to 3.8 denier,
Eco-friendly vegetation mat for slope protection. delete delete delete delete delete According to claim 1,
The fibers constituting the filling mat layer,
coconut fiber,
Eco-friendly vegetation mat for slope protection. According to claim 1,
Biodegradability by soil burial test for 5 months under the condition of crosshead speed 5cm/min and load 500kg is 90%,
Eco-friendly vegetation mat for slope protection. delete As a method for manufacturing an eco-friendly slope protection vegetation mat according to claim 1,
Forming a first net layer on the composite fabric on which the plant seeds are located on the surface or inside;
forming a filling mat layer on the first net layer; and
forming a second net layer on the filling mat layer; including,
The composite fabric,
Non-woven fabric made of first natural fibers and
It is attached to at least one surface of the nonwoven fabric and includes a fabric made of a second natural fiber,
The nonwoven fabric and the fabric are combined,
Manufacturing method of eco-friendly vegetation mat for slope protection. delete

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