KR20120013268A - Vegetation media containing biodegradable fiber for vegetation measures and vegetation measures utilizing the same - Google Patents

Abstract

PURPOSE: A vegetation base material for a greening method, and the greening method are provided to offer the improved seed germination rate and seed coverage rate to seeds. CONSTITUTION: A vegetation base material for a greening method is formed with a vegetation net(110) obtained by weaving biodegradable fibers into a three-dimensional mesh shape or a film thread shape. The biodegradable fibers are formed with an aliphatic polyester biodegradable fiber, an aliphatic/aromatic polyester biodegradable fiber, or their mixture. The aliphatic polyester biodegradable fiber is selected from a polylactic acid fiber, a polyglycolic acid fiber, a polycaprolactone fiber, a polybutylene succinate fiber, a copolymer fiber of butylene succinate and adipate, or a polyhydroxyalkanoate fiber. The aliphatic/aromatic polyester biodegradable fiber is formed with a copolymer fiber of butylene adipate and bytylene terephtalate.

Description

Vegetation substrate containing green biodegradable fiber and greening method using same {Vegetation media containing biodegradable fiber for vegetation measures and vegetation measures utilizing the same}

The present invention relates to a vegetation substrate for a greening method comprising a biodegradable fiber and a greening method using the same, more specifically, to an aliphatic polyester-based biodegradable fiber, an aliphatic / aromatic copolyester-based biodegradable fiber or a mixture thereof. The present invention relates to a vegetation base material such as artificial soil, vegetation net, vegetation mat, and the like, and a greening method using the same.

The vegetation method or the greening method collectively aims at the conservation of the environment, the landscape, and the land by the vegetation composition and greenery. In particular, the slope protection method among the greening methods is a method to prevent erosion due to rainwater by covering vegetation on the cut slope, and is mainly applied to weathered rock layers or soil layers with severe weathering. If the cut slope is clay, weathered rock, or soft rock and the slope is more than 1: 1.2, or the cut slope is sandy soil and the slope is more than 1: 1.5, it is difficult to maintain the stability of the cut slope by the general vegetation method alone. Other slope protection methods should be reviewed.

In general, the slope protection method is a seed spray (mat) spray, mat (mat), net (net) method, green soil method. Among these, the seed spray method is a method of spraying and planting a mixture of plant seeds or plant seeds with fertilizer, coating curing agent, anti-erosion stabilizer, colorant, purified water, and the like on a ground to be greened with a high pressure pump. Net method is mainly made of natural fiber composed of Coir (Coir, Coconut shell), Jute, rice straw, or synthetic fiber composed of nylon, polypropylene, polyethylene, PVC, etc. Net) It is a method of planting on the ground after weaving in the form of a plant, and spraying and planting seed composite materials such as plant seeds such as grass or seed spray. Mat method is made of a web or non-woven mat from a natural fiber alone, synthetic fiber alone, or a mixture of natural and synthetic fibers made of Coir, jute, rice straw, etc. It is a method of attaching to the ground to be recorded as a composite layer or a single layer such as net, paper layer, seed layer, etc. used in the net method, and spraying and planting seed composite materials such as plant seeds such as grass or seed spray. When manufacturing the seeds while inserting the seeds inside the mat during the mat manufacturing step, it is possible to reduce the step of spraying the seeds after the net mounting. The green soil process produces artificial soil (green soil) that combines soil, various organic compounds (sawdust, paper sludge, natural fiber, fertilizer, compost, manure, etc.), various adhesives, and microorganisms, and dry or It is a method of wet installation and greening. In order to increase adhesion to steep slopes and rocks, wire mesh and polymer nets may be installed first, and green soil may be installed.

In using these existing methods, the following problems are continuously raised. In the seed spray method, soil nutrients and seeds are lost due to rainfall or wind on the inclined slope, or osteoporosis occurs, so that smooth vegetation is not possible. The net method and mat method prevent the biodegradation of the net made of natural fibers such as Coir, Jute and rice straw after the greening process so fast that the net's protective function (strength decrease) before seed germination and growth occurs sufficiently. , Seed loss, soil erosion, etc.) is a frequent occurrence of loss. In addition, the net made of synthetic fibers, such as nylon, polypropylene, polyethylene, PVC is not biodegradable is not environmentally friendly, there is a problem that the net tissue of non-biodegradable material interferes with vegetation (plant growth). The rust soil method uses artificial soil (when artificial soil is used) due to the lack of adhesion to the ground soil, which is the target of greening, such as falling (sliding) after construction or lack of adsorptive power of artificial soil during drying after construction. Severe separation and cracking of artificial soils, poor growth of greening plants due to cracking and lack of moisturizing power, and in case of heavy rainfall, the soil collapses due to excessive moisture absorption and collapses due to excessive moisture absorption. There is a problem that occurs.

Therefore, there has been a constant need for artificial soil compositions that can be used for greening in cut or fill areas that require artificial vegetation conditions, and new greening methods using nets and mats of suitable types and dimensions.

The present invention has been made to solve the conventional problems, the object of the present invention is improved seed germination rate, seed coverage, reduced when applied to greening methods such as seed spray method, green soil method, net method, mat method An object of the present invention is to provide a vegetation substrate capable of forming a uniform vegetation with a soil loss rate and little cracks and separations.

In addition, another object of the present invention to provide a greening method using the vegetation substrate.

In order to achieve the above object of the present invention, the present invention is an artificial soil comprising 1 to 10% by weight of biodegradable fibers composed of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof. It provides a vegetation substrate for the greening method consisting of. In addition, the present invention is a biodegradable fiber consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof, in the form of 3D mesh or film yarn of biodegradable fibers. Provided is a vegetation base material for the greening method composed of a vegetation net formed. In addition, the present invention is a vegetation mat or aliphatic polyester-based biodegradable fibers formed of non-woven fabrics of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof. Forming non-woven fabrics of mixed fibers consisting of 20 to 80% by weight of at least one biodegradable fiber selected from the group consisting of aromatic copolyester-based biodegradable fibers and mixed biodegradable fibers thereof and 20 to 80% by weight of natural fibers Provided is a vegetation substrate for the greening method consisting of a vegetation mat. In addition, the vegetation base material according to the present invention is a vegetation base material for the greening method composed of the artificial soil, vegetation base material for the greening method composed of the vegetation net, vegetation base material for the greening method composed of the vegetation mat, conventional green soil soil Various types of vegetation substrates are provided by a combination of artificial soil for a process, a vegetation net formed from natural fibers, and a vegetation mat formed from natural fibers.

In order to achieve another object of the present invention, the present invention provides a greening method comprising the step of fixing the vegetation substrate according to the present invention on the ground. For example, the greening method of the present invention comprises the steps of fixing the vegetation net formed from natural fibers or vegetation net formed from the biodegradable fibers according to the present invention; And spraying the artificial soil-seed mixture formed by mixing seeds with artificial soil including biodegradable fibers according to the present invention on the vegetation net. In addition, as an example, the greening method of the present invention comprises the steps of fixing the vegetation net formed from the biodegradable fiber according to the present invention; And spraying on the vegetation net an artificial soil-seed mixture formed by mixing seeds with general artificial soil for seeding.

The vegetation base material of the present invention has a lower biodegradation rate than natural fibers, and is easy to biodegrade than synthetic fibers such as nylon, polypropylene, polyethylene, PVC, aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or their It consists of artificial soils, vegetation nets, or vegetation mats, or a combination thereof, containing mixed biodegradable fibers, and when applied to the greening method, the seed germination rate, the coverage rate is high, the soil loss rate is low, and the crack is And spacing hardly occurs to form a uniform vegetation. In addition, the biodegradable fibers biodegrade over time to serve as a compost can further promote the growth of plants.

1 shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a non-woven fabric formed of biodegradable fibers according to the present invention, Figure 2 is a vegetation in the form of a nonwoven fabric impregnated with seeds formed of a biodegradable fiber according to the present invention The cross section of the composite structure vegetation base material containing a mat is shown.
Figure 3 shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a nonwoven fabric formed of biodegradable fibers according to the present invention and a vegetation net formed from the biodegradable fibers according to the present invention, Figure 4 is a biodegradation according to the present invention It shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a non-woven fabric impregnated with seeds formed from the fibers and a vegetation net formed from the biodegradable fibers according to the present invention.
FIG. 5 is a photograph of a vegetation net for a greening method in the form of a 3D mesh according to 2 in the manufacture of the present invention.

One aspect of the present invention relates to a vegetation substrate capable of forming a uniform vegetation with almost no cracking and separation with improved seed germination rate, seed coverage, and reduced soil loss rate when applied to the greening method. Hereinafter, the biodegradable fiber to be used in the present invention will be described first, and then the vegetation substrate is divided into artificial soil, vegetation net, vegetation mat, and the like.

Biodegradable fiber

The vegetation substrate of the present invention is biodegradable slower than natural fibers, and includes biodegradable fibers that are more biodegradable than synthetic fibers such as nylon, polypropylene, polyethylene, PVC, and the like, and the biodegradable fibers include aliphatic polyester-based biodegradable fibers, Aliphatic / aromatic copolyester-based biodegradable fibers or biodegradable fibers composed of a mixture thereof. Aliphatic polyester-based biodegradable fibers in the present invention include copolymer fibers of different aliphatic esters.

Specific examples of aliphatic polyester-based biodegradable fibers include polylactic acid (PLA) fibers, polyglycolic acid (PGA) fibers, polycaprolactone (PCL) fibers, polybutylene succinate (Polybutylene) succinate (PBS) fibers, copolymers of butylenesuccinate and adipate [Poly (butylene succinate-co-adipate, PBSA) fibers, or polyhydroxyalkanoate (PHA) fibers, and the like. In addition, specific examples of polyhydroxyalkanoate (PHA) fibers include polyhydroxybutyrate (PHB) fibers, polyhydroxyvalerate (PHV) fibers, or Hydroxybutyrate and hydroxyvalerate copolymer (PHB-co-PHV) fibers, and the like, and may be selected from one or more of the fibers. In the present invention, the aliphatic / aromatic copolyester-based biodegradable fibers are copolymers of aliphatic polyesters and aromatic polyesters, and the types of the biodegradable fibers are not particularly limited. Specific examples thereof include butylene adipate and butylene terephthalate. Poly (butylene adipate-co-bytylene terephtalate) fiber.

Artificial soil for greening

Artificial soil, which is an example of the vegetation substrate for greening method according to the present invention is also called rust soil, the biodegradable fiber composed of aliphatic polyester-based biodegradable fiber, aliphatic / aromatic copolyester-based biodegradable fiber or a mixture thereof. It is composed of artificial soil containing 10% by weight. If the content of the biodegradable fiber in the artificial soil for greening method according to the present invention is less than 1% by weight, there is a fear that the effects on the germination rate, coverage, soil loss, crack and separation state of the seed according to the addition of the biodegradable fiber And, if the content of the biodegradable fiber exceeds 10% by weight there is a fear that the economic efficiency is lowered because the increase of the effect due to the excess of the biodegradable fiber is not large. In this case, the biodegradable fibers are preferably short fibers when considering compatibility with other components of the artificial soil.

Artificial soil for the greening method according to the present invention may further comprise peat, masato, etc., in addition to the specific biodegradable fibers, and more preferably, ripening bark, flakes, activated carbon, paper sludge, paper fiber, carboxymethyl cellulose ( CMC), and a compound fertilizer may be further included. As a more specific example, artificial soil for greening method according to the present invention is biodegradable fiber 1 ~ 10% by weight, peat 3 ~ 5% by weight, 5 ~ 10% by weight of bark, 10 ~ 20 Weight%, Masato 20-25%, Activated Carbon 2-4%, Paper Sludge 15-25%, Paper Fiber 15-25%, Carboxymethylcellulose (CMC) 1-2% and Compound Fertilizer 2-4 It may consist of weight percent.

Artificial soil for the greening method according to the present invention can be applied to the seed spray method, green soil method and the like, can be used in combination with other methods such as net method, mat method.

For greening Vegetation  Net

The vegetation net, which is an example of the vegetation base for greening method according to the present invention, is a three-dimensional three-dimensional mesh (3D mesh) of biodegradable fibers composed of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, or a mixture thereof. ) May be formed in the form. In addition, the vegetation net is an example of the vegetation base for the greening method according to the present invention is a biodegradable fiber consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof, film yarn of biodegradable fibers It may be formed in the form. More specifically, the vegetation net in the form of a 3D mesh is formed by knitting a biodegradable fiber with a double-lasel knitting machine, etc., having a predetermined thickness, and having a plurality of open cells at the top and the bottom thereof. Is formed. The vegetation net in the form of a biodegradable fiber film yarn is formed by knitting a biodegradable mono yarn and a film yarn with a French knitting machine or the like, and a plurality of film yarns having a predetermined thickness and width are intertwined to form a net.

In addition, the vegetation net which is an example of the vegetation base for the greening method according to the present invention is one selected from the group consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers and mixed biodegradable fibers thereof. 3D mixed fibers composed of 20 to 80% by weight of the above biodegradable fibers and 20 to 80% by weight of natural fibers, preferably 30 to 70% by weight of the biodegradable fibers and 30 to 70% by weight of the natural fibers It may be formed in the form of a three-dimensional mesh (3D mesh) or film yarn. When the content of the biodegradable fiber in the mixed fiber is less than 20% by weight, it may be difficult to form a 3D mesh or a film yarn, and the strength and durability of the vegetation net may be deteriorated. If the content of more than 80% by weight may be ineffective due to the addition of natural fibers. At this time, if the natural fiber can be applied to the vegetation substrate is not limited to the kind, specifically, there are jute fiber, flax fiber, Coir fiber, or crested fiber, etc., may be selected from one or more of the fibers. .

The vegetation net for the greening method according to the present invention can be applied to the net method, can be used in combination with other methods such as seed spray method, green soil method, mat method. In addition, the vegetation net for the greening method according to the present invention can be used in combination with other kinds of vegetation net, or vegetation mat to form a vegetation substrate of a complex structure.

For greening Vegetation  mat

The vegetation mat, which is an example of the vegetation base for greening according to the present invention, forms a biodegradable fiber composed of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, or a mixture thereof in the form of a web or a nonwoven fabric. It may be one. In addition, the vegetation mat which is an example of the vegetation substrate for the greening method according to the present invention is one selected from the group consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers and mixed biodegradable fibers thereof. 20 to 80% by weight of the above biodegradable fibers and 20 to 80% by weight of natural fibers, preferably a mixed fiber consisting of 30 to 70% by weight of the biodegradable fibers and 30 to 70% by weight of the natural fibers Or it may be formed in the form of a nonwoven fabric. If the content of the biodegradable fiber in the mixed fiber is less than 20% by weight, carding becomes difficult and the strength and durability of the nonwoven fabric may be deteriorated. When the content of the biodegradable fiber exceeds 80% by weight, The germination rate, in particular the improvement of the germination rate of dicotyledonous species may be insignificant. At this time, if the natural fiber can be applied to the vegetation substrate is not limited to the kind, specifically, there are jute fiber, flax fiber, Coir fiber, or crested fiber, etc., may be selected from one or more of the fibers. . The web or nonwoven fabric is formed by needle punching, thermal bonding, spun bonding, or the like.

In addition, the vegetation mat which is an example of the vegetation substrate for the greening method according to the present invention is a web or non-woven fabric of biodegradable fibers composed of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof. 20 to 80% by weight of one or more biodegradable fibers selected from the group consisting of vegetative mats or aliphatic polyester based biodegradable fibers, aliphatic / aromatic copolyester based biodegradable fibers and mixed biodegradable fibers thereof formed from Seeds are mixed in a vegetation mat having a mixed fiber made of 20 to 80% by weight of fiber, preferably 30 to 70% by weight of the biodegradable fiber and 30 to 70% by weight of the natural fiber in the form of a web or a nonwoven fabric. It may also be formed in an impregnated one piece. That is, a web is manufactured by carding a biodegradable fiber or a mixed fiber of a biodegradable fiber and a natural fiber, placing seeds on the upper end of the web while cross lapping the web, and using a needle punching method. To form a nonwoven fabric to form a vegetation mat in the form of an integral web or nonwoven fabric. The seeds are then uniformly dispersed and impregnated at about 1/2 to 2/3 points on the nonwoven thickness.

The vegetation mat for the greening method according to the present invention can be applied to the mat method, and can be used in combination with other methods such as seed spray method, green soil method, net method and the like. In addition, the vegetation mat for the greening method according to the present invention can be used in combination with other kinds of vegetation mat, or vegetation net to form a vegetation substrate of a complex structure.

Complex structure for greening Vegetation  materials

Vegetation substrate for greening method according to the present invention may be composed of artificial soil, vegetation net, vegetation mat single, but preferably has a composite structure in which they are laminated. Hereinafter, with reference to the accompanying drawings will be described a composite structure vegetation substrate for greening method according to the present invention. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In the following description of the present invention, 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 following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

1 shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a non-woven fabric formed of biodegradable fibers according to the present invention, Figure 2 is a vegetation in the form of a nonwoven fabric impregnated with seeds formed of a biodegradable fiber according to the present invention The cross section of the composite structure vegetation base material containing a mat is shown.

As shown in FIG. 1, the composite structure vegetation substrate 100 of the present invention includes, for example, a vegetation mat 110 in the form of a nonwoven fabric formed from biodegradable fibers; A seed layer 120 stacked on the nonwoven fabric vegetation mat; A vegetation mat 130 stacked on the seed layer and formed from natural fibers; It is stacked on the vegetation mat formed from the natural fibers, vegetation net 140 formed from natural fibers; includes. Here, the vegetation mat 110 in the form of a nonwoven fabric includes a vegetation mat in the form of a nonwoven fabric formed from a mixed fiber of biodegradable fibers and natural fibers. In addition, the vegetation mat 130 formed from natural fibers may be replaced with a vegetation mat in the form of a non-woven fabric formed from biodegradable fibers or mixed fibers of biodegradable fibers and natural fibers. In addition, the composite structure vegetation substrate according to the present invention of FIG. 1 may have a structure in which the vegetation net 140 formed from natural fibers is omitted, and the artificial soil is stacked on the vegetation net 140 formed from natural fibers. It may be. Biodegradable fibers are selected from aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, or biodegradable fibers consisting of a mixture thereof, and natural fibers are not limited in their kind as long as they can be applied to vegetation substrates. And, specifically, jute fiber, flax fiber, Coir fiber, or crested fiber, and the like, and may be selected from one or more of the fibers. Adhesion between the layers laminated in FIG. 1 may be performed in various ways such as needle punching, resin bonding, and stitch bonding.

In addition, the composite structure vegetation substrate 200 of the present invention, as shown in Figure 2 is a vegetation mat 210 of the non-woven fabric impregnated with the seeds described above; A vegetation mat 220 laminated on the vegetation mat in the form of impregnated nonwoven fabric and formed from natural fibers; And a vegetation net 230 formed on the vegetation mat formed from the natural fibers and formed from the natural fibers. Here, the vegetation mat 210 of the nonwoven fabric includes a vegetation mat of the nonwoven fabric formed from a mixed fiber of biodegradable fibers and natural fibers. In addition, the vegetation mat 220 formed from natural fibers may be replaced with a vegetation mat in the form of a non-woven fabric formed from biodegradable fibers or mixed fibers of biodegradable fibers and natural fibers. In addition, the composite structure vegetation substrate according to the present invention of FIG. 2 may have a structure in which the vegetation net 230 formed from natural fibers is omitted, and the artificial soil is stacked on the vegetation net 230 formed from natural fibers. It may be.

Figure 3 shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a nonwoven fabric formed of biodegradable fibers according to the present invention and a vegetation net formed from the biodegradable fibers according to the present invention, Figure 4 is a biodegradation according to the present invention It shows a cross-section of a composite structure vegetation substrate comprising a vegetation mat in the form of a non-woven fabric impregnated with seeds formed from the fibers and a vegetation net formed from the biodegradable fibers according to the invention.

As shown in FIG. 3, the composite structure vegetation substrate 300 of the present invention includes, for example, a vegetation mat 310 in the form of a nonwoven fabric formed from biodegradable fibers; A seed layer 320 laminated on the nonwoven fabric vegetation mat; A vegetation mat 330 stacked on the seed layer and formed from natural fibers; And a vegetation net 340 stacked on the vegetation mat formed from the natural fibers and formed from biodegradable fibers. Here, the vegetation mat 310 in the form of a nonwoven fabric includes a vegetation mat in the form of a nonwoven fabric formed from a mixed fiber of biodegradable fibers and natural fibers. In addition, the vegetation net 340 formed from the biodegradable fiber is a three-dimensional three-dimensional mesh (3D mesh) is a biodegradable fiber consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof It may be formed in the form of a film yarn of a biodegradable fiber or an aliphatic polyester-based biodegradable fiber, aliphatic / aromatic copolyester-based biodegradable fiber and mixed biodegradable fibers thereof 3D mixed fibers composed of 20 to 80% by weight of the above biodegradable fibers and 20 to 80% by weight of natural fibers, preferably 30 to 70% by weight of the biodegradable fibers and 30 to 70% by weight of the natural fibers It includes one formed in the form of a three-dimensional mesh (3D mesh) or film yarn. Natural fibers are not limited in kind as long as they can be applied to the vegetation substrate, and specifically, there are jute fibers, flax fibers, Coir fibers, or crested fibers, and at least one selected from the fibers. In addition, the vegetation mat 330 formed from natural fibers may be replaced with a vegetation mat in the form of a non-woven fabric formed from biodegradable fibers or mixed fibers of biodegradable fibers and natural fibers. In addition, the composite vegetation substrate according to the present invention of FIG. 3 may have a form in which artificial soil is stacked on a vegetation net 340 formed from biodegradable fibers.

In addition, the composite structure vegetation substrate 400 of the present invention, as shown in Figure 4 is a vegetation mat 410 of the non-woven fabric impregnated with the aforementioned seeds; And a vegetation net 420 laminated on the vegetation mat in the form of impregnated nonwoven fabric and formed from biodegradable fibers. The vegetation mat 410 in the form of a nonwoven fabric includes a vegetation mat in the form of a nonwoven fabric formed from a mixed fiber of biodegradable fibers and natural fibers. In addition, the vegetation net 420 formed from the biodegradable fibers may be configured in the same manner as in FIG. In addition, the composite structure vegetation substrate according to the present invention of Figure 4 is a natural fiber, biodegradable fiber or natural fiber and biodegradation between the vegetation mat 410 of the non-woven fabric impregnated with seeds and vegetation net 420 formed from biodegradable fibers It may further include a vegetation mat in the form of a nonwoven fabric formed from the mixed fibers of the soluble fiber, and may have a form in which artificial soil is stacked on the vegetation net 420 formed from the biodegradable fibers.

Vegetation  Greening method using substrate

Greening method using the vegetation substrate according to the present invention can be applied to the seed spray method, green soil method, vegetation net net method, vegetation mat mat method for artificial soil, but is not limited to this, different construction methods, etc. This can be used interchangeably. For example, when the vegetation substrate of the composite structure according to the present invention is fixed to the ground, the net method and the mat method are mixed.

In addition, the mixed greening method of the green soil method and the net method using the vegetation substrate according to the present invention, the step of fixing the vegetation net formed from natural fibers or vegetation net formed from the biodegradable fibers according to the present invention to the ground; And spraying the artificial soil-seed mixture formed by mixing seeds with artificial soil including biodegradable fibers according to the present invention on the vegetation net. Vegetation nets formed from biodegradable fibers specifically form aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, or biodegradable fibers consisting of a mixture thereof, in the form of a 3D mesh or biodegradable. At least one biodegradable fiber selected from the group consisting of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, and mixed biodegradable fibers thereof 10 It includes a mixed fiber consisting of ˜90% by weight and 10 to 90% by weight of natural fibers in the form of a three-dimensional solid mesh (3D mesh) or film yarn. Natural fibers are not limited in kind as long as they can be applied to the vegetation substrate, and specifically, there are jute fibers, flax fibers, Coir fibers, or crested fibers, and at least one selected from the fibers.

In addition, when the vegetation net is selected as the vegetation net formed from the biodegradable fiber according to the present invention in the mixed greening method of the chlorophyll soil method and the net method, the artificial soil can be replaced with a conventional artificial soil that does not contain the biodegradable fiber. . The method of spraying the artificial soil-seed mixture may be either dry spray or wet spray, and wet spray is preferable for uniform spraying.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are only intended to more clearly describe the configuration of the present invention and do not limit the protection scope of the present invention.

1. Recording method Vegetation  Manufacture of substrate

Preparation Example 1 Biodegradable Fiber Artificial Soil for Greening Process

5 parts by weight of peat, 7 parts by weight of dried bark, 15 parts by weight of shaft, 22 parts by weight of Masato, biodegradable fiber (6 deniers and 10 mm long; consisting of 95% by weight PLA and 5% by weight PBS) 3% Part, 4 parts by weight of activated carbon, 20 parts by weight of papermaking sludge, 20 parts by weight of paper fiber, 1 part by weight of carboxymethyl cellulose (CMC), and 3 parts by weight of composite fertilizer were prepared to prepare a biodegradable fiber artificial soil for greening.

Preparation Example 2 3D mesh vegetation net for greening

Vegetation net for greening process in the form of 3D mesh from biodegradable fiber (fineness 6 denier and length 10mm; consisting of 95 wt% PLA and 5 wt% PBS) using a double-lassel knitting machine Was prepared. FIG. 5 is a photograph of a vegetation net for a greening method in the form of a 3D mesh according to 2 in the manufacture of the present invention. The three-dimensional solid mesh had a thickness of 12 mm and basis weight of 360 g / m 2, and had a top and bottom portions composed of a plurality of open cells.

Preparation Example 3 Polyglycolic Acid Film Vegetation Net for Greening Method

Polylactic acid (PLA) mono yarn (0.2 mm thick) and polylactic acid (PLA) film yarn (40 μm thick and 2.5 mm wide) using a French knitting machine A vegetation net for the greening method was prepared. The basis weight of the polytic acid film yarn vegetation net was 40 g / ㎡.

Preparation Example 4 Nonwoven Vegetation Mat for Greening Method

Using a needle punching method, polylactic acid (PLA) fibers (fineness of 6 deniers and 51 mm in length) are carded to produce a web, and needle lapping while cross lapping the web. The vegetation mat for the greening method of the nonwoven fabric form was manufactured using the method. The basis weight of the nonwoven vegetation mat was 100 g / m 2.

Preparation Example 5: Integrated Nonwoven Vegetation Mat for Greening Method

Polydactic acid (PLA) fibers (fineness 6 denier and 51 mm in length) are carded to produce a web, and the seeds (perennial liglas versus strings) are cross-lapping the web. The weight ratio of iron iron is 4: 1) is placed on the upper end of the web, and the integral vegetation mat for the greening method of the nonwoven fabric was manufactured using the needle punching method. The basis weight of the integral nonwoven vegetation mat was 150 g / m 2, and the seeds were impregnated at about 2/3 points based on the thickness of the integral nonwoven vegetation mat.

Preparation Example 6 Integrated Nonwoven Vegetation Mat for Greening Method

Except for producing a web by carding a mixed fiber composed of 30% by weight of polylactic acid (PLA) fiber (6 denier and 51 mm in length) and 70% by weight of jute. In the same manner as in Example 5 was prepared integral vegetation mat for greening method of the nonwoven fabric. The basis weight of the integral nonwoven vegetation mat was 150 g / m 2, and the seeds were impregnated at about 2/3 points based on the thickness of the integral nonwoven vegetation mat.

Preparation Example 7: Integrated Nonwoven Vegetation Mat for Greening Method

Except for producing a web by carding a mixed fiber composed of 50% by weight of polylactic acid (PLA) fibers (6 denier and 51 mm in length) and 50% by weight of jute. In the same manner as in Example 5 was prepared integral vegetation mat for greening method of the nonwoven fabric. The basis weight of the integral nonwoven vegetation mat was 150 g / m 2, and the seeds were impregnated at about 2/3 points based on the thickness of the integral nonwoven vegetation mat.

Preparation Example 8 Integrated Nonwoven Vegetation Mat for Greening Method

Except for producing a web by carding a mixed fiber composed of 30% by weight of polylactic acid (PLA) fiber (6 denier and 51 mm in length) and 70% by weight of jute. In the same manner as in Example 5 was prepared integral vegetation mat for greening method of the nonwoven fabric. The basis weight of the integral nonwoven vegetation mat was 150 g / m 2, and the seeds were impregnated at about 2/3 points based on the thickness of the integral nonwoven vegetation mat.

Preparation Example 9 Composite Vegetation Base for Greening Method

On the nonwoven vegetation mat for the greening method of Preparation Example 4, a seed layer was sprayed evenly at a surface density of 25 g / m 2 to form a seed layer, and again the nose was placed on the seed layer. Then, a Coir mat was disposed, and a Coir net was placed on the top thereof, thereby preparing a composite vegetation substrate for the greening method. Each layer was bonded using a natural resin.

Preparation Example 10 Composite Vegetation Base for Greening Method

A coir mat was placed on the integrated nonwoven vegetation mat for the greening method of Preparation Example 5, and a coir net was placed on the top to prepare a composite vegetation base for the greening method. Each layer was bonded using a natural resin.

Preparation Example 11 Composite Vegetation Base for Greening Method

A coir mat was placed on the integral nonwoven vegetation mat for the greening method of Preparation Example 6, and a coir net was placed on the top to prepare a composite vegetation base for the greening method. Each layer was bonded using a natural resin.

Preparation Example 12: Composite Vegetation Base for Greening Method

A coir mat was disposed on the integral nonwoven vegetation mat for the greening method of Preparation Example 7, and a coir net was placed on the top to prepare a composite vegetation substrate for the greening method. Each layer was bonded using a natural resin.

Preparation Example 13 Composite Vegetation Base for Greening Method

A coir mat was placed on the integrated nonwoven vegetation mat for the greening method of Preparation Example 8, and a coir net was placed on the top to prepare a composite vegetation base for the greening method. Each layer was bonded using a natural resin.

Preparation Example 14 Composite Vegetation Base for Greening Method

On the nonwoven vegetation mat for the greening method of Preparation Example 4, a seed layer was sprayed evenly at a surface density of 25 g / m 2 to form a seed layer, and again the nose was placed on the seed layer. Then, a (Coir) mat was placed, and a poly vegetative net of Polylactic acid (PLA) film for the greening method of Preparation Example 3 was placed at the top to prepare a composite vegetation substrate for the greening method. Each layer was bonded using a natural resin.

Preparation Example 15 Composite Vegetation Base for Greening Method

The composite vegetation substrate for the greening method was prepared by disposing a vegetation net of polylactic acid (PLA) film yarn for the greening method of Preparation Example 3 on the integral nonwoven vegetation mat for the greening method of Preparation Example 7. Each interlayer was mechanically bonded using needle punching.

Comparative Preparation Example 1 Artificial Soil for Greening

5 parts by weight of peat, 7 parts by weight of dried bark, 15 parts by weight of shaft, 25 parts by weight of Masato, 4 parts by weight of activated carbon, 20 parts by weight of papermaking sludge, 20 parts by weight of paper fiber, 1 part by weight of carboxymethylcellulose (CMC), compound fertilizer 3 parts by weight of the artificial green soil was prepared by mixing.

Comparative Production Example 2 Jute Vegetation Net for Greening Process

Jute vegetation nets for the greening method of weft yarn and inclination of 3 cm each were prepared.

Comparative Preparation Example 3 PE Film Yarn Vegetation Net for Greening Method

Polyethylene film yarn vegetation net for the greening process consisting of polyethylene (PE) mono yarn (0.2 mm thick) and polyethylene (PE) film yarn (40 μm thick and 2.5 mm wide) using a French knitting machine Was prepared. The basis weight of the polyethylene film yarn vegetation net was 40 g / m 2.

Comparative Production Example 4 Composite Vegetation Base for Greening Method

Spread the seeds evenly on the pulp sheet with a weight ratio of Perennial liglas to the barbed iron at a surface density of 25 g / m 2 to form a seed layer, and then place a Coir mat over the seed layer. By placing a coir net on the top, a composite vegetation substrate for the greening process was prepared. Each layer was bonded using a natural resin.

Comparative Production Example 5 Composite Vegetation Base for Greening Method

Spread the seeds evenly on the pulp sheet with a weight ratio of Perennial liglas to the barbed iron at a surface density of 25 g / m 2 to form a seed layer, and then place a Coir mat over the seed layer. , PE film yarn vegetation net for the greening method of Comparative Production Example 3 was placed at the top end to prepare a composite vegetation substrate for the greening method. Each layer was bonded using a natural resin.

2. Vegetation  Greening method according to the description and the result

Test Example 1.

The jute vegetation net for the greening method of Comparative Preparation Example 2 was disposed on the ripping arm ground (slope slope is 1: 0.7) mixed with soil and fixed ankapin at 1m intervals in the horizontal and vertical directions. Soil-seeds were mixed with 100 parts by weight of the biodegradable fiber artificial soil of Preparation Example 1 by mixing 0.2 parts by weight of seeds (tolfezuc seeds, perennial liglas seeds, and non-repair seeds with a weight ratio of 1: 1: 1). The mixture was prepared, and water was added thereto to prepare a wet soil-seed mixture having a concentration of 70% by weight of the soil-seed mixture. The wet soil-seed mixture was sprayed onto the jute vegetation net and mounted 2 cm thick.

Test Example 2.

The 3D mesh vegetation net for the greening method of Preparation Example 2 was disposed on the ripping arm ground (slope slope is 1: 0.7) mixed with earth and sand, and the anchor pins were fixed at intervals of 1 m each in the horizontal and vertical directions. A soil-seed mixture was prepared by mixing 0.2 parts by weight of seeds (tolfezuc seeds, perennial liglas seeds, and non-repair seeds with a weight ratio of 1: 1: 1) to 100 parts of artificial soil for greening method of Comparative Preparation Example 1. And wet was added to prepare a wet soil-seed mixture having a concentration of 70% by weight of the soil-seed mixture. The wet soil-seed mixture was sprayed onto the jute vegetation net and mounted 2 cm thick.

Comparative Test Example 1.

The jute vegetation net for the greening method of Comparative Preparation Example 2 was disposed on the ripping arm ground (slope slope is 1: 0.7) mixed with soil and fixed ankapin at 1m intervals in the horizontal and vertical directions. A soil-seed mixture was prepared by mixing 0.2 parts by weight of seeds (tolfezuc seeds, perennial liglas seeds, and non-repair seeds with a weight ratio of 1: 1: 1) to 100 parts of artificial soil for greening method of Comparative Preparation Example 1. And wet was added to prepare a wet soil-seed mixture having a concentration of 70% by weight of the soil-seed mixture. The wet soil-seed mixture was sprayed onto the jute vegetation net and mounted 2 cm thick.

Test Example  One, Test Example  2, and comparison Test Example  1, greening method result

Artificial rain was irradiated once every 15 days after vegetation base construction (50 mm / hr, 2 hours). On the 30th, 90th, and 180th day, the germination rate, coverage, artificial soil loss rate, cracking, and separation state of the test sample were observed / evaluated, and the results are shown in Table 1.

Cover ratio: After taking a slide of the test sample, the area was converted into a coverage using grid paper.

Artificial Soil Loss Ratio: The ratio of the weight of the lost artificial soil to the weight of the original artificial soil was converted into% (artificial rainfall and lost soil collecting devices were installed below the surface of the artificial soil).

Cracks and spacing: 1 to 2 (very bad), 2 to 4 (bad), 5 to 6 (usually), 7 to 8 (good), 9 to 10 to ensure objectivity by visual observation Scored on the same criteria as (very good) and averaged and evaluated.

division Coverage% Artificial soil loss rate (% by weight) Cracks and spacing 30 days 90 days 180 days 30 days 90 days 180 days 30 days 90 days Test Example 1 73 91 96 9 14 16 Good 7.8 (good) Test Example 2 65 88 98 5 7 9 Very good 9.5 (very good) Comparative test example 1 47 55 68 22 34 42 Bad 2.4 (bad)

As shown in Table 1, when the greening method was carried out using the vegetation substrate of the present invention (Test Examples 1 and 2), the germination rate (results omitted), high coverage, low loss rate of artificial soil, crack and The spacing was good. Particularly, in Test Example 2 using the 3D mesh vegetation net for the greening method, the artificial soil loss rate was remarkably low, and there was almost no crack and separation, thereby forming a uniform vegetation for the entire area.

Test Example 3.

The composite vegetation base material for the greening method of Preparation Example 9 was disposed on a sloped ground in which sandy soil and viscous clay were mixed (slope slope is 1: 1.2), and anchorage was fixed at intervals of 1 m each in the horizontal and vertical directions.

Test Example 4.

The composite vegetation base material for the greening method of Preparation Example 10 was disposed on a slope ground mixed with sandy soil and viscous soil, and anchored with ancapine at 1 m intervals in the horizontal and vertical directions.

Test Example 5.

The composite vegetation base material for the greening method of Preparation Example 11 was placed on a sloped ground mixed with sandy soil and viscous soil (an slope slope of 1: 1.2), and anchorage was fixed at intervals of 1 m each in the horizontal and vertical directions.

Test Example 6.

The composite vegetation base material for the greening method of Preparation Example 12 was disposed on sloped soil (slope slope is 1: 1.2) mixed with sandy soil and viscous soil, and anchorage was fixed at intervals of 1m each in the horizontal and vertical directions.

Test Example 7.

The composite vegetation base material for the greening method of Preparation Example 13 was disposed on a slope ground mixed with sandy soil and viscous soil, and ancapine was fixed at intervals of 1 m each in the horizontal and vertical directions.

Comparative test example 2.

The composite vegetation base material for the greening method of Comparative Preparation Example 4 was disposed on a sloped ground in which sandy soil and viscous clay were mixed (slope slope is 1: 1.2), and anchorage was fixed at intervals of 1 m each in the horizontal and vertical directions.

Test Example  3 to 7 and comparison Test Example  2, greening method result

Artificial rain was irradiated once every 15 days after vegetation base construction (50 mm / hr, 2 hours). At 30, 90, and 180 days, the coverage of the test sample and the germination rate of filiform iron were observed / evaluated and the results are shown in Table 2.

Cover ratio: After taking a slide of the test sample, the area was converted into a coverage using grid paper.

Rope seed germination rate: The number of seed germinations in the area of 4㎡ was measured 180 days after the installation of the vegetation base material, and the germination rate was converted as a ratio with respect to the germination number of Comparative Test Example 2.

division Coverage% Rope seed germination rate (at 180) 30 days 90 days 180 days Test Example 3 55 82 88 3 Test Example 4 58 85 92 6 Test Example 5 75 95 98 9 Test Example 6 69 92 96 8 Test Example 7 62 90 94 7 Comparative Test Example 2 38 50 61 One

As shown in Table 2, the use of vegetation mats in the form of biodegradable fibrous nonwovens or seed integral biodegradable fibrous nonwovens resulted in higher coverage and germination rates than those of pulp sheet-like vegetation substrates. Seemed. In addition, the vegetation mat in the form of biodegradable fibrous nonwoven fabric, in particular, the vegetation mat in the nonwoven form made of mixed fiber mixed with the jute, which is a natural fiber, and the biodegradable fiber according to the present invention, in the seed integral biodegradable fibrous nonwoven form. The rate of germination and the rate of germination increased significantly. This is because the relatively hard jute is mixed with PLA fiber and the nonwoven fabric void at the top of the seed increases, and the jute is faster in water absorption and biodegradation than PLA, and the mixed fiber in which the natural fiber and the biodegradable fiber of the present invention are mixed. When used as a net or vegetation mat material, the manufacturing cost is reduced, which is advantageous in terms of economics. In addition, although not shown in Table 2, when the greening method was carried out using the vegetation substrate of the present invention (Test Examples 3 to 7), the seeds can be uniformly arranged, and movement and loss of seeds due to external force such as rainfall are prevented. It is effective in reducing soil loss by preventing and slowing down the flow rate of the surface of the rainfall (more specifically, between the mat and the surface). In addition, the biodegradable fibers are biodegraded over time, thereby acting as a compost, thereby further promoting the growth of plants.

Test Example 8.

The composite vegetation base material for the greening method of Preparation Example 14 was disposed on a sloped ground in which sandy soil and viscous clay were mixed (slope slope is 1: 1.2), and anchorage was fixed at 1 m intervals in the horizontal and vertical directions.

Test Example 9.

The composite vegetation base material for the greening method of Preparation Example 15 was disposed on a sloped ground in which sandy soil and viscous soil were mixed (slope slope is 1: 1.2), and anchorage was fixed at intervals of 1 m each in the horizontal and vertical directions.

Comparative Test Example 3.

The composite vegetation base material for the greening method of Comparative Preparation Example 5 was disposed on a sloped ground in which sandy soil and viscous soil were mixed (slope slope is 1: 1.2), and anchorage was fixed at intervals of 1 m each in the horizontal and vertical directions.

Test Example  8, Test Example  9, and comparison Test Example  3, greening method result

Artificial rain was irradiated once every 15 days after vegetation base construction (50 mm / hr, 2 hours). At 30, 90, and 180 days, the coverage of the test sample and the germination rate of the yarn lobe were observed / evaluated and the results are shown in Table 3.

Cover ratio: After taking a slide of the test sample, the area was converted into a coverage using grid paper.

Rope seed germination rate: The number of seed germinations in the area of 4㎡ was measured 180 days after the installation of the vegetation base material, and the germination rate was converted as a ratio with respect to the germination number of Comparative Test Example 2.

division Coverage% Rope seed germination rate (at 180) 30 days 90 days 180 days Test Example 8 52 80 91 6 Test Example 9 73 95 98 10 Comparative Test Example 3 30 45 58 One

As shown in Table 3, high coverage and germline germination rates were obtained in Test Examples 8 and 9 using a vegetation mat in the form of biodegradable fibrous nonwoven or seed integral biodegradable fibrous nonwoven and a vegetation net in the form of biodegradable film yarn. Seemed. In particular, the vegetation mat in the form of a seed integral biodegradable fiber nonwoven fabric showed the highest coverage and germination rate. When the greening method was carried out using the vegetation base material of the present invention (Test Example 8 and Example 9), it is composed of 100% eco-friendly material, and there is no environmental pollution, and the biodegradable film yarn vegetation net decreases in strength due to biodegradation after a certain period of time. And degradation did not interfere with plant growth. When the greening method was carried out using the vegetation substrate of the present invention, the seeds were uniformly arranged, and the coverage was significantly improved by preventing seed migration and loss due to external force such as rainfall. In addition, by reducing the surface velocity of the rainfall (more specifically, between the mat and the surface), the loss of earth and sand was reduced, and the nonwoven fabric under the seed layer absorbed and moisturized the seeds, thereby improving the germination rate and germination rate of the seeds. In addition, the biodegradable fibers are biodegraded over time, thereby acting as a compost, thereby further promoting the growth of plants.

110, 310: vegetation mat in the form of nonwoven fabric formed from biodegradable fibers
210, 410: vegetation mat in the form of non-woven fabric formed from biodegradable fibers and impregnated with seeds
120, 320: Seed layer
130, 220, 330: vegetation mat formed from natural fibers
140, 230: vegetation net formed from natural fibers
340, 420: Vegetation nets formed from biodegradable fibers

Claims (9)

Vegetal nets formed of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers, or biodegradable fibers formed of a mixture thereof in the form of 3D mesh or film yarn of biodegradable fibers. Vegetation equipment base for greening method to be comprised. The method of claim 2, wherein the aliphatic polyester-based biodegradable fibers are polylactic acid (PLA) fibers, polyglycolic acid (PGA) fibers, polycaprolactone fibers, polybutylene succinate (Polybutylene succinate) fibers, copolymers of butylene succinate and adipate [Poly (butylene succinate-co-adipate) fibers, and polyhydroxyalkanoate fibers selected from the group consisting of The aliphatic / aromatic copolyester-based biodegradable fiber is a vegetation substrate for a greening method, characterized in that the copolymer of poly (butylene adipate-co-bytylene terephtalate) fibers of butylene adipate and butylene terephthalate.
Fixing the vegetation net, the vegetation net of claim 1 or 2, formed from natural fibers to the ground; And
An artificial soil-seed mixture formed by mixing seeds with artificial soil containing 1 to 10% by weight of aliphatic polyester-based biodegradable fibers, aliphatic / aromatic copolyester-based biodegradable fibers or a mixture thereof. Spraying on the vegetation net; Greening method comprising a.
The greening method according to claim 3, wherein the natural fiber is at least one selected from the group consisting of jute fiber, flax fiber, Coir fiber, and crest fiber.
The method of claim 3, wherein the biodegradable fiber contained in the artificial soil is a short fiber.
According to claim 3, Aliphatic polyester-based biodegradable fibers contained in the artificial soil is a polylactic acid (Polylactic acid (PLA) fiber, Polyglycolic acid (PGA) fiber, Polycaprolactone (Polycaprolactone) fiber, Polybutylene succinate fibers, copolymers of butylene succinate and adipate (Poly (butylene succinate-co-adipate) fibers, and polyhydroxyalkanoate fibers) At least one, aliphatic / aromatic copolyester-based biodegradable fibers included in the artificial soil are copolymers of butylene adipate and butylene terephthalate (Poly (butylene adipate-co-bytylene terephtalate)) fiber Greening technique.
The method of claim 3, wherein the artificial soil is biodegradable fiber, peat, ripening bark, shavings, masato, activated carbon, paper sludge, papermaking fiber, carboxymethyl cellulose (CMC) and the greening method characterized in that the fertilizer.
According to claim 7, wherein the artificial soil is based on the total weight of the artificial soil 1-10% by weight biodegradable fiber, 3-5% by weight peat, 5-10% by weight of bark bark, 10-20% by weight, Masato 20 ~ 25% by weight, activated carbon 2-4% by weight, paper sludge 15-25% by weight, paper fiber 15-15% by weight, carboxymethyl cellulose (CMC) 1-2% by weight and compound fertilizer 2-4% by weight The greening method characterized by the above.
Fixing the vegetation net of claim 1 or 2 to the ground; And
And spraying the artificial soil-seed mixture formed by mixing artificial soil and seeds on the vegetation net.

Images