JPH0699915B2 - Vegetation substrate for greening - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation substrate for greening (hereinafter, simply referred to as a vegetation substrate) used in, for example, a slope greening method.

[0002]

2. Description of the Related Art As one of the above-mentioned slope greening methods, there is a method of sowing seeds of exotic plants such as grass and seeds of native plants such as flower plants, wildflowers and trees on the slopes. But
With this method, the growth of the grass is strong, and the flowers, wildflowers, and trees are pressed by the grass, and the flower plants sown with great effort,
Without the growth of wild grass and trees, only grass will be replanted, and the final purpose of the slope cannot be restored to the mountain.

Therefore, for example, as disclosed in Japanese Utility Model Publication No. 60-114607, while grass seeds are stored together with a fertilizer in a bag made of a soluble film, flower plant seeds, wild grass seeds,
A turf-like vegetation substrate has been proposed in which tree seeds are provided in a turf grass part composed of a net, etc., and grass and flower plants, wild plants, and trees are separated to prevent pressure on the vegetation plants, wild plants, and trees by the grass. There is.

[0004]

However, in the stretched grass-like vegetation substrate described in the above publication, since the bag containing the grass seed and the fertilizer is made of a soluble film, the grass in the bag is sacked when there is rainfall. With the flow of seeds and fertilizer, especially grass seeds stagnated in the turf and grew there, and despite the fact that the grass was separated from the flower plant, wild grass, and trees, , I sometimes overwhelmed wild grass and trees.

On the other hand, as a modification of the technique described in the above publication, it is possible to store grass seeds and fertilizer in a bag made of non-woven fabric. In this case, the bag is fragile and fragile. There is a problem in that the grass seeds cannot germinate if the bag is too strong.

There are also the following problems. That is,
The net, which is a base material in the stretched grass section, is conventionally made of a chemically synthesized plastic such as polyethylene (PE) or polypropylene (PP), and this plastic is semipermanently modified under normal conditions. Therefore, unlike other plant-based or animal-based materials, it will not be exposed to weather and weather to weather or corrode to homogenize with soil or soil over many years. Therefore, in recent years, such characteristics have been regarded as disasters and have become a global environmental problem as plastic pollution.

Therefore, under such a circumstance, using a net made of plastic in a slope greening method or the like contributes to environmental greening on the one hand, but also promotes plastic pollution on the other hand. It will be.

In order to avoid the problems caused by the above-mentioned characteristics of the plastic material, a net made of a vegetable material such as jute has been used in the past. Further, viscose rayon is a so-called corrosive material which is made of regenerated cellulose and which is completely corroded even after a long period of time, and can be applied to a loom relatively easily. -82
As proposed in Japanese Patent Publication No. 8, it is attempted to be used in a case where the net is partially corroded. Further, in addition to viscose rayon, a net using a biodegradable plastic as a corrosive material has been proposed in, for example, Japanese Utility Model Publication No. 3-5746.

As described above, in order to corrode the net, it has been proposed to construct the net by using various corrosive materials, but conventionally, these have not been used so much. The reason is as follows. That is, when a corrosive net is laid on the slope, most of these nets are corroded about two months after the net is laid on the slope, and the required strength is lost. For the plants to germinate from the vegetation material provided on the net, which is too short for two months to grow and flourish, the net purpose of protecting slopes and growing plants is achieved. Can not do it.

Therefore, an ideal net for use in slope protection, etc. maintains mechanical strength such as sufficient tensile strength for the last six months to two years after laying, and is finished after the plant has grown to some extent. It can be said that it is chemically corroded and homogenized in the soil. In this case, when the net main body is formed with a storage portion and the storage portion stores a fertilizer bag or the like, it is desirable that the bag such as the fertilizer bag is also made of a soluble material.

The present invention has been made in view of the above matters, and an object of the present invention is to provide a native species plant such as a flower plant, a wildflower or a tree without being pressed by an alien species plant such as grass. In addition to being able to surely germinate and grow,
For example, the purpose of the present invention is to provide a vegetation substrate that maintains sufficient tensile strength for about 6 months to 2 years after laying, then decomposes and corrodes, and sacks fertilizer bags and the like into soil and soil.

[0012]

In order to achieve the above object, in the first aspect of the present invention, a net having a double structure formed by superposing a front net and a back net made of strong rayon on each other is provided between the both nets. The accommodating portion is formed in the weft direction, and a vegetation bag accommodating vegetative seeds is accommodated in the accommodating portion. In this case, an antiseptic corrosive material may be used instead of the strong rayon.

In the second aspect of the present invention, a tape-shaped weft made of strong rayon is knitted in a entangled weave with a large number of warp yarns made of strong rayon at appropriate intervals in the transverse direction at a weft spacing of 3 to 9 yarns / inch. While releasing about half of the warp yarns in the reticulated body from the weft yarns at appropriate intervals in the longitudinal direction, and weaving the weft yarns in the released warp yarns at the same rate as the weft yarn interval to partially form a double portion, A vegetation bag containing vegetation seeds is housed in this double portion. In this case, an antiseptic corrosive material may be used instead of the strong rayon.

In the third aspect of the present invention, the bag supporting warp made of strong rayon is included at every proper interval between the warps and the weft of the strong rayon, which are formed by knitting and weaving the warp and the weft. By knitting in the longitudinal direction, the warp for bag support is released from the weaving with the weft at appropriate intervals in the longitudinal direction of the mesh to form a loop portion that can communicate in the weft direction, and the bag support is formed on the surface of the mesh. Is formed in the weft direction, and a vegetation bag accommodating vegetation seeds is supported in this bag support portion. In this case, an antiseptic corrosive material may be used instead of the strong rayon.

[0015]

In any of the above-mentioned inventions, members such as warp and weft constituting the reticulated body are strong rayon such as polynosic rayon and viscose rayon for tire cord, or a corrosive material subjected to antiseptic treatment (hereinafter, strong rayon, etc.). These high-strength rayons have a higher tensile strength than materials such as ordinary viscose rayon and biodegradable plastic that have been conventionally used. For example, the tensile strength of polynosic rayon Strength is
It is 3.4 g / D or more, and that of viscose rayon for tire cord is 3.0 g / D or more.

The high-strength rayon and the like have properties that the strength is not significantly reduced when wet, and that the strength is reduced with the passage of time. Further, the net-like body made of this strong rayon has a tensile strength of about 90% of the initial value even after the half year of construction. Therefore, the net-like body made of strong rayon or the like having such characteristics can maintain necessary strength for about 6 months to 2 years after laying and protect slopes.

As described above, high-strength rayon has a higher tensile strength than ordinary viscose rayon and biodegradable plastics, but since it is a cellulosic material, it is a reticulated body made of high-strength rayon. It gradually loses its strength and antiseptic effect, is corroded by the time when plants grow on the slope, and eventually returns to soil.

In addition, the vegetation substrate in each of the above inventions includes, for example, a storage portion formed between nets, a partially formed double portion, and a bag support portion formed on the surface of the mesh body, for example, a flower plant, A vegetation bag containing or provided with seeds such as wild grass and trees together with an appropriate fertilizer, for example, in a bag formed by laminating a net made of rayon (unlike strong rayon) and water-soluble paper. Therefore, when this is laid on the slope, at the beginning of laying, the vegetation seeds in the vegetation bag are covered with the water-soluble paper and do not flow out.

Then, for example, when there is rainfall, the water-soluble paper is rapidly dissolved by raindrops, so that the vegetation seeds can easily germinate. In this case, the movement of vegetation seeds is prevented by the net made of rayon, so that the seedlings germinated from the vegetation seeds do not come out of the vegetation bag and can be reliably grown by the supply of fertilizer and water. .
Of the members that make up the bag, the water-soluble paper easily dissolves, and the net is also corroded by the time when plants grow and grow on the slope, and eventually returns to the soil.

Therefore, according to any of the inventions, by appropriately changing the kind and combination of the vegetative seeds contained in the bag, it is possible to grow the exotic plants and the native plant in a well-balanced manner on the slope.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show an embodiment of the first invention. First, in FIGS. 1 to 3, 1 is a vegetation substrate, and its mesh 2 is composed of a front net 3 and a back net 4. , Warps 5, 6 and wefts 7, in both nets 3, 4.
Each of Nos. 8 is composed of a flat yarn made of polynosic rayon, which has a tensile strength higher than that of a normal viscose rayon, but has the characteristic that the strength thereof decreases with the passage of time. The front net 3 and the back net 4 are knitted with each other by using a Russell machine, leaving a portion which is not knitted in the warp yarns 5 and 6 at an appropriate interval to form a double net structure, and a non-knitted portion. Is formed in the housing portion 9.

In FIG. 1, reference numeral 10 is a thin cotton made of soot attached to the upper surface of the back net 4, and on the upper surface thereof, together with fertilizers and water retention agents 11, for example, flower plants, wild plants or trees, etc. Vegetation seeds 12 are sprayed and held on the entire surface by an adhesive 13 such as polyvinyl alcohol (PVA).

Further, in FIG. 1, 14 and 15 are fertilizer bags and vegetation bags that are appropriately contained and held in the accommodating portion 9. Fertilizer bag 14
Is made of soluble materials such as staple nonwoven fabric, pulp nonwoven fabric, soluble paper, and biodegradable plastic (described later) so that it has the thickness and breathability that fertilizer nutrients gradually exude due to rainfall. The fertilizer, soil amendment agent, water retention agent, and other fertilizer base materials that are directly or indirectly required for plant growth are housed in the prepared bag.

As shown in FIG. 4, the vegetation bag 15 is made of normal rayon and has a net 16 having a mesh size of 3 to 5 mm, and does not prevent the germination and growth of the vegetation, and is soluble in water. Grass paper, for example, a laminated sheet of a soluble sheet 17 made of Ponrick (trade name, Ikeda Paper Industry Co., Ltd.) under the trade name, in a bag 18 formed with the net 16 facing outward, or grass seeds, or It contains vegetation seeds 19 such as flower plant seeds, wild grass seeds, and tree seeds.

As the material of the net 16, in addition to ordinary rayon, cotton or a soluble material obtained by mixing rayon and cotton can be used. Also soluble sheet
As the polymer 17, a high-molecular or starch-based soluble (including so-called semi-soluble) film, a staple non-woven fabric, a pulp non-woven fabric, or the like is used, or polypropylene is used in pulp that is gradually dissolved by moisture. Semi-soluble paper containing about 40% may be used.

Examples of the grass seeds include greeping red fescue, highland bentgrass, red top,
There are Bermudagrass, Kentucky Bluegrass, and the like, which may be appropriately selected and stored in the bag 18. And as flower plant seeds, yellow daisies, French chrysanthemums,
Daikin chicken chrysanthemum, saw grass, fly squirrel, California poppy, purple hanahana, gypsophila, cosmos,
There are keito, kawaraneshiko, ginseng, etc.,
In addition, as the wild grass seed, mugwort, Japanese pampas grass, Medohagi,
The tree seeds include, and tree seeds include akamatsu, yashabushi, weasel, yamahagi, komatsunagi, etc., which may be appropriately selected and stored in the bag 18. The water retaining material and some fertilizer may also be stored in each of the vegetation bags 18.

The vegetation substrate 1 according to the first aspect of the present invention is configured such that the fertilizer bag 14 and the vegetation bag 15 are appropriately accommodated in the accommodating portion 9 formed in the net 2, and the entire slope is an alien species. In order to achieve a well-balanced greening with plants and native plants, the types of vegetation bags 15 to be stored in the storage unit 9 and the vegetation seeds 12 to be pre-seeded and attached to the staple cotton 10 affixed to the upper surface of the back net 4 It is essential to select the types as appropriate and combine them well.

Therefore, as shown in FIG. 5, in the accommodating section 9 of the vegetation base 1, the fertilizer bag 14 and the flower plants such as annual flower plant seeds and perennial flower plant seeds are accommodated in every other accommodating section 9a. A vegetation bag in which seeds and tree seeds are appropriately mixed 1
5h is accommodated in the accommodating portion 9b sandwiched between the accommodating portions 9a,
For example, a vegetation bag 15b containing grass seeds is stored, and grass seeds and flower plant seeds or tree seeds are stored separately.

Here, the annual flower plants include California poppy, purple hanahana, gypsophila, cosmos, and ceto, and the perennial flower plants include kawaranadeshiko, ginseng, yarrow, French chrysanthemum, and large brocade.

As shown in FIG. 6, the net 1 having the above-mentioned structure is used as a back net 4 by using anchors 20 and pegs 21.
It is laid so that the side is close to the slope 22 and the vegetation bag 15h is located above the fertilizer bag 14. Slope
In the net 1 laid on 22, the vegetation bag was initially installed.
The vegetation seeds 19 in 15b and 15h are covered with the soluble sheet 17 and do not flow out. Then, for example, when there is rainfall, the soluble film 17 is rapidly dissolved by raindrops, so that the vegetation seeds 19 can easily germinate. In this case, since the movement of the vegetation seeds 19 is held by the net 16 made of rayon, the seedlings germinated from the vegetation seeds 19 can reliably grow by receiving the fertilizer and the water.

Then, in the vegetation base 1, the grass in the vegetation bag 15b housed in the housing portion 9b grows quickly and grows in a streak shape to protect the slope 22. In the other accommodation section 9a of the vegetation substrate 1, although it germinates from flower seeds or tree seeds, it can be grown without being pressed because it is distant from the pasture, and the accommodation section 9a
Since the fertilizer bag 14 is provided inside, it is possible to grow surely, and the entire slope 22 is surely greened in a well-balanced manner.

The vegetation substrate 1 is composed of warp yarns 5 and 6 and weft yarns 7 in the front net 3 and the back net 4.
No. 8 is made of polynosic rayon, which has higher tensile strength than normal viscose rayon, but its strength decreases with the passage of time. The required strength can be maintained and the slope 22 can be protected for the second half to two years after the installation.

In the vegetation substrate 1, the reticulate body 2 gradually decreases in strength from the time when the plant grows to a certain extent and grows, and is decomposed and corroded to become tattered, finally returning to soil. . Further, the fertilizer bag 14 housed in the housing portion 9 is made of a soluble material such as a staple non-woven fabric, a pulp non-woven fabric, soluble paper, biodegradable plastic, and the like, so that the fertilizer bag 14 germinates for a certain period of time and grows to some extent. After the necessary period), it will be decomposed and become homogenous with the soil.
Then, among the members constituting the bag 18 of the vegetation bag 15, the soluble sheet 17 is easily dissolved, and the net 16 is also corroded by the time when the plant grows and grows on the slope 22 and finally returned to the soil.

FIGS. 7 and 8 show an embodiment of the second invention. First, in FIG. 7, 23 is a vegetation substrate, and the net 24 has both the fertilizer bag 14 and the vegetation bag 15 or the fertilizer bag. A double section 25 is formed for receiving 14.

The structure of the net 24 will be described with reference to FIG. 8 as well. The warp 26 is made of polynosic rayon, for example, a monofilament of about 400 to 700 denier, and the weft 27 is made of polynosic rayon, for example, 2000 to 3000 denier. Each tape-shaped flat yarn is used.

Next, the manufacturing method will be described. The warp yarn 26 and the weft yarn 27 are each woven on a loom, and the weft interval is 3 to 9 yarns /
As a inch, a single net 24 is knitted by plain weaving or entanglement weaving with a large number of two or more warp yarns 26 every 10 to 100 mm in the transverse direction. In this case, if the width of the weft yarn 27 is large, the number of shots per inch may be reduced, and if it is small, it may be increased. Further, as the weft yarn 27, a wide weft yarn folded a plurality of times to be narrowed may be used. Then, by setting the shading rate of the mesh body 24 at the time of knitting to about 50%, the moisture state in the fertilizer bag 14 can be stabilized.

Next, an appropriate length in the vertical direction (for example, 20 to 80 cm)
About half), about half of the warp yarns 26 forming the net 24 are released from the weft yarns 27, and the released warp yarns 26 ′ have the same number (3 to 9 / inch) of the weft yarns 27 ′ ( This weft yarn 27 'is also made of polynosic rayon) and knitted. For example, the part 25 for separating the front and back sides from 3 to
After providing about 10 cm, it returns to the single mesh body 24 again.
By repeating this, the partial double mesh body is completed,
A vegetation substrate 23 is obtained by appropriately containing the fertilizer bag 14 and the vegetation bag 15 in the double portion 25.

9 and 10 show an embodiment of the third invention. First, in FIG. 9, 28 is a vegetation substrate, and the net 29 has both fertilizer bags 14 and 15 or a fertilizer bag. A bag support 30 for accommodating 14 is formed.

The structure of the mesh 29 will be described with reference to FIG. 10. The warp 31 is made of polynosic rayon of about 400 to 700 denier monofilament, and the weft 32 is made of polynosic rayon of 2000 to 3000. Each denier flat yarn is used.

The manufacturing method will be described below.
The weft yarn 32 and the weft yarn 32 are respectively applied to a loom, and the single net-like body 29 is knitted by plain weaving or entanglement weaving. When the above-mentioned knitting is performed, the warp yarns 33 for the bag support portion (the warp yarns 33 for the bag support portion are also made of polynosic rayon) are longitudinally included between the warp yarns 31 at appropriate intervals so as to include the warp yarns 31. While weaving it in, release it from the weft 32 at every longitudinal interval,
A loop portion 34 is formed on the surface of the mesh body 29 so as to be able to communicate in the direction of the weft thread 32, and the bag support portion 30 is provided between the loop portion 32 and the mesh body 29.
Is formed.

The mesh body according to the second and third inventions
Also in 24 and 29, its double part 25 and bag support
It goes without saying that the fertilizer bag 14 and the vegetation bag 15 are appropriately arranged in the 30 to achieve the same effects as the first invention.

As can be understood from the above description, the vegetation bases 1, 23, 28 of the present invention have the fertilizer bag 14 and the vegetation bag 15 regardless of whether the mesh bodies 2, 24, 29 have a double structure. Although it can be accommodated or supported, the fertilizer bag 14 and the vegetation bag 15 when the vegetation substrates 1, 23, 28 are laid on the slope 22.
The arrangement of is not limited to that shown in FIG. 5, and various arrangements are conceivable.

That is, FIG. 11 shows an example of the arrangement. In the example shown in FIG. 11A, the seed 35 of the annual flower plant is used.
A layer 36 of soft cotton sprinkled and sown is adhered to the reticulate body 2, while the fertilizer bag 14 and the vegetation bag 15h containing the seeds of the perennial flower plant are accommodated in the accommodation section 9a, and the accommodation section 9b is accommodated. A vegetation substrate 1 containing a vegetation bag 15b containing grass seeds therein is laid so that the layer 36 is close to the slope 22.

Further, in the one shown in FIG. 6B, a layer 38 of soft cotton seeded and seeded with seeds 37 of an annual flower plant and a perennial flower plant is adhered to the reticulate body 2 while the storage portion 9a The fertilizer bag 14 and the vegetation bag 15b containing the grass seeds are housed in the housing part 9b, and the vegetation substrate 1 is housed in the housing part 9b so that the layer 38 is close to the slope 22. Is laid in.

Needless to say, in FIG. 11 described above, the mesh body 24 according to the second invention or the mesh body 29 according to the third invention may be used as the mesh body.

Further, in the above-described embodiment, the vegetation substrate 1 is merely laid on the slope 22, but the vegetation substrate 1 laid on the slope 22 and the like is arranged from above the slope 22 to the slope 22. You may make it spray a vegetation base material. In that case, for example, only flower plant seeds may be provided as seeds on the vegetation base 1 side, and only tree seeds may be mixed into the sprayed vegetation base material.

The spraying method may be a so-called dry method in which the seed, the organic material, the chemical fertilizer, the soil conditioner, and the water retention agent are simply sufficiently mixed and water is not used.
It can also be used in a wet spraying method using a hydrocedar or gunki. Further, as the vegetation material to be sprayed, a material such as PM C material (registered trademark owned by Jomo Ryokusan Kogyo Co., Ltd.) obtained by converting sludge into vegetation material is used, and this is sprayed using a mini cleat pump. You may make it spray by.

By the way, in each of the above embodiments, the mesh-like body 2 of the vegetation substrate 1 is made of strong rayon such as polynosic rayon and viscose rayon for tire cord, but the present invention is not limited to this. Not
In each of the above-mentioned embodiments, all parts made of strong rayon may be made of a corrosive material subjected to antiseptic treatment so as to have the same effects as the vegetation substrate 1 made of strong rayon. As the antiseptic treatment means, there are water repellents, adhesives, antifungal agents, antibacterial agents, antiseptics, etc., which will be described in detail below.

First, as the corrosive material, animal material,
There are various things such as plant and chemical, but for example animal,
As the plant material, natural fibers such as leather, hair, cotton, hemp, and pulp are typical. In addition to chemical materials, there are polyolefin-based materials that have been easily corroded by chemicals, recycled fibers such as viscose rayon, microbial degradable plastics, and photodegradable plastics. Examples of biodegradable plastics include trade name Tone (manufactured by AMKO, USA), trade name Pullulan (manufactured by Hayashibara Co., Ltd.), and trade name Thor Phil (manufactured by Mitsubishi Rayon Co., Ltd.). And
The photodegradable plastics include, for example, trade name Polygrad (manufactured by Anvas, USA) and trade name Plastigon (manufactured by Ideamasters, USA).

Next, of the corrosive material, the procedure for water repellent treatment of viscose rayon, which is a recycled fiber, will be described.
This will be described with reference to FIG. In this figure, 39 is a known viscose rayon manufacturing apparatus, 40 is a dryer, 41 is a water repellent treatment tank containing a water repellent agent 42, 43 is a pair of squeezing rollers, and 44
Is a dryer, 45 is a curing device, and 46 is a winding device. Further, as the water repellent 42, for example, a 5 to 7% solution of trade name Asahi Guard AG-310 or AG-433 (all manufactured by Asahi Glass Co., Ltd.) can be used.

In the thus constructed apparatus, the viscose rayon 47 fed from the viscose rayon production apparatus 39 is pre-dried in the dryer 40 at an appropriate temperature. The pre-dried viscose rayon 47 has the water repellent agent 42 in the water repellent treatment tank 41 hidden therein. Next, water repellent 42
The viscose rayon 47, which was dipped in the
It is appropriately squeezed in 43, reaches the dryer 44, and undergoes a predetermined drying process. Then, the viscose rayon 47 that has been subjected to this drying treatment is, for example, in the curing device 45,
After being cured at 150 ° C. for 3 minutes or 170 ° C. for 1 minute, it is wound by the winding device 46.

FIG. 14 shows a viscose rayon 48 which has been subjected to the water repellent treatment as described above. The one shown in FIG. 14 (A) has a coating layer 49 made of a water repellent agent 42 on the outer periphery of the viscose rayon 47. Are formed. Further, as shown in FIG. 1B, a coating layer 49 is formed on the outer circumference of the viscose rayon 47, and a permeation layer 50 in which the water repellent 42 is soaked from the surface is also formed over the entire circumference.

The water repellent treatment of a corrosive material such as viscose rayon is not limited to that shown in FIG. 12, but may be configured as shown in FIG. 13, for example. That is, in this figure, the viscose rayon 47 fed from the viscose rayon manufacturing device (not shown) is passed through the water repellent agent applying device 51 to apply the water repellent agent 42 to its surface, and thereafter, Dry in dryer 52, and
After performing a predetermined curing by a curing device (not shown), the winding device 46 winds it.

By any of the water repellent treatments shown in FIG. 12 or 13, the water repellent viscose rayon 48 as shown in FIGS. 14A and 14B can be obtained. Unlike the conventional viscose rayon 47, the course rayon 48 has less deterioration in strength when wet, and has almost the same characteristics as the above-mentioned strong rayon. And
The reticulate body 2 is formed by using the water repellent viscose rayon 48.

The reticulated body 2 is, as in the above-described embodiment, a material before being woven into a loom, that is, a monofilament, a flat yarn, or the like that has been treated to be water repellent at the stage and woven into a reticulated state. The body or the like may be constituted, or after knitting or weaving a net-like body or the like having a predetermined shape using a monofilament or a flat yarn, it is dipped in a water repellent or showering or spraying the water repellent. You may apply using the means of.

By the way, in order to examine the corrosion degree and tensile strength of the water-repellent reticulated body, the following experiment was conducted. That is, two mesh-like bodies entwined and woven using strands of 2000 denier viscose rayon (tape shape) were prepared, and one of the mesh-like bodies was sprayed with Asahi Guard AG-310 as a water repellent. The other reticulate body was untreated, and these were laid on a south-facing slope with a 10-minute slope in September 1989, and the degree of corrosion and tensile strength after laying were investigated. The results shown in Table 1 were obtained.

[0058]

[Table 1]

From the above Table 1, it can be seen that the water-repellent reticulated body is hardly corroded even after half a year, and the tensile strength is maintained at about 96% of the initial value. . Therefore, it is considered that the water-repellent reticulated body and the like have the same effect as the conventional net for about two years after being laid. In addition, in the above test, it is added that the net-like body was covered with vegetation half a year after the installation.

In the above-mentioned embodiment, the viscose rayon is subjected to the water repellent treatment, but the present invention is not limited to this, and the other corrosive materials mentioned above are subjected to the water repellent treatment. It goes without saying that a net may be formed or a net-like body made of these corrosive materials may be subjected to a water repellent treatment.

The water repellent 42 needs to be appropriately selected depending on the object to be treated, and when the object to be treated is a chemical fiber other than cellulosic, for example, Asahi Guard AG-710 or AG-730 (trade name). 3 to 5% solution such as Asahi Glass Co., Ltd.) may be used. In addition, a silicone-based, fluorine-based, or wax-based water repellent may be used.

As can be understood from the above description, by applying the water repellent treatment to the mesh body made of a corrosive material, the desired strength can be maintained within a predetermined period after installation,
Although the net-like body is gradually decomposed and corroded after the lapse of the period, it can be treated with an adhesive as a method of delaying the decomposition and corrosion of the net-like body made of a corrosive material. As the adhesive used for this treatment, for example, acrylic resin-based product names Polysol A-403-2, AT-
130 and AP-6710 (both manufactured by Showa High Polymer Co., Ltd.) may be used, and these are diluted 2 to 3 times and applied to a net made of a corrosive material, or this net is diluted adhesive It may be dipped in.

By the way, the decomposition / corrosion of a net-like body made of a corrosive material is caused by the presence of bacteria which decomposes / corrodes the corrosive material and the presence of water. If they are kept away from each other, decomposition / corrosion of the net-like body made of a corrosive material can be delayed for a certain period. Therefore, on a net-like body made of a corrosive material, a product such as Benlate (manufactured by DuPont), product name Topgin M (manufactured by Nippon Tanka Co., Ltd.), product name Xylamon EX (manufactured by Takeda Pharmaceutical Co., Ltd.), etc. Agent,
It is also possible to apply antibacterial agents, preservatives, etc., or immerse the reticulate body in these chemicals.

[0064]

As described in detail above, according to the vegetation substrate of the present invention, seeds and flower plants of alien species such as grass and grass,
Vegetative seeds such as seeds of native plants such as wildflowers and trees can be reliably retained without migration or runoff, and their germination and growth can be smoothly performed. In particular, seeds and flower plants of exotic plants such as grass,
When the seeds of native plants such as wildflowers and trees are arranged separately from each other, it is possible to germinate native plants such as flowers, wildflowers and trees without being pressed by alien plants such as grass.・ It can be grown and can be planted in a desired condition on the slope.

Further, in the vegetation substrate according to the present invention, the reticulate body maintains a desired strength within a predetermined period after being laid on a slope or the like, and after that period, it is gradually decomposed and corroded. The erosion of the slope is prevented by the mesh. And, the reticulate body maintains its strength until the vegetative seeds in the vegetation bag germinate and various plants grow to some extent, so that the vegetative seeds and plants do not run away, Is greened over its entire surface.

The reticulate body which has maintained its strength for a certain period after being laid is
After the lapse of the certain period of time, the strength thereof gradually decreases, gradually decomposes and is corroded to become tattered, and finally it is returned to soil. In addition, fertilizer bags and vegetation bags themselves stored in the storage section are gradually dissolved and returned to the soil. Therefore, unlike conventional methods, it is possible to promote greening without promoting plastic pollution.

According to the present invention, it is possible to surely germinate and grow native species plants and flowers such as wildflowers and trees without being pressed by alien species plants such as grass. Needless to say, the vegetation substrate according to the present invention can be applied to other than greening of slopes.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a vegetation substrate according to a first invention.

2A and 2B are a perspective view and a side view, respectively, showing a main part of a mesh-like body of the vegetation substrate.

FIG. 3 is a cross-sectional view showing an enlarged main part of the mesh body.

FIG. 4 is a perspective view showing an example of a vegetation bag accommodated and held in the vegetation base.

FIG. 5 is an enlarged cross-sectional view showing an example of a state in which a fertilizer bag and a vegetation bag are accommodated in the vegetation base.

FIG. 6 is a cross-sectional view showing a method of greening a slope using the vegetation substrate.

FIG. 7 is a plan view showing an example of a vegetation substrate according to the second invention.

FIG. 8 is a plan view showing a main part of a net-like body of the vegetation substrate.

FIG. 9 is a perspective view showing an example of a vegetation substrate according to a third invention.

FIG. 10 is a plan view showing a main part of a net-like body of the vegetation substrate.

11 (A) and 11 (B) are enlarged cross-sectional views showing a storage state of a fertilizer bag and a vegetation bag in the vegetation substrate according to the present invention.

FIG. 12 is a diagram showing an example of a step of subjecting a corrosive material to a water repellent treatment.

FIG. 13 is a diagram showing another example of a step of subjecting a corrosive material to a water repellent treatment.

14 (A) and 14 (B) are diagrams showing a cross section of a corrosive material subjected to a water repellent treatment.

[Explanation of symbols]

1, 23, 28 ... Vegetation substrate for greening, 2, 24, 29 ... Net body, 3
… Front net, 4… Back net, 5, 6, 26, 31
... Warp, 7, 8, 27, 32 ... Weft, 9 ... Storage part, 15 ... Vegetation bag, 19 ... Vegetation seed, 25 ... Double part, 26 '... Free warp, 30 ... Bag support part, 33 ... Warp for bag support, 34… Loop part.

Claims (6)

[Claims] 1. A storage portion is formed in the weft direction between the both nets of a double-structured net formed by stacking a front net and a back net made of strong rayon, respectively, and a vegetation seed is provided in the storage portion. A vegetation substrate for greening, which contains a vegetation bag containing the above. 2. An accommodating portion is formed in the weft direction between the both nets of a net having a double structure in which a front net and a back net made of corrosive materials each subjected to antiseptic treatment are overlapped with each other. A vegetation base for greening, characterized in that a vegetation bag containing vegetation seeds is housed in a housing portion. 3. A net-like body formed by weaving a tape-shaped weft made of strong rayon with a warp made of a large number of strong rayons in the transverse direction at an appropriate interval at a weft spacing of 3 to 9 yarns / inch by entanglement weaving. About half of the warp yarns are released from the weft yarn at appropriate intervals in the longitudinal direction, and the weft yarns are weaved on the released warp yarns at the same rate as the weft yarn interval to partially form a double portion. A vegetation substrate for greening, characterized by containing a vegetation bag containing vegetation seeds therein. 4. A tape-shaped weft made of a corrosive material that has been subjected to antiseptic treatment, and a weft spacing of 3 to 3 by a warp made of a corrosive material that has been subjected to a number of antiseptic treatment in the transverse direction at appropriate intervals.
About half of the warps in the net-like body woven by entanglement weaving at 9 threads / inch are released from the wefts at appropriate intervals in the longitudinal direction, and the wefts are weaved on the released warps at the same rate as the weft interval. A vegetation base material for greening, characterized in that a vegetation bag is accommodated in the double portion while partially forming a double portion. 5. A bag supporting warp made of strong rayon is knitted in the longitudinal direction at a proper interval between the warps and the weft of a strong rayon, which is formed by weaving a warp and a weft. , The bag supporting warp yarns are released from the weaving with the weft yarns at appropriate intervals in the longitudinal direction of the mesh body to form a loop portion capable of communicating in the weft direction, and the bag bearing portion is formed on the surface of the mesh body in the weft direction. A vegetation base for revegetation, which is formed, and a vegetation bag containing vegetation seeds is supported on the bag support portion. 6. A bag bearing made of a corrosive material that has been subjected to an antiseptic treatment at appropriate intervals between warps and a weft of a corrosive material that has been subjected to an antiseptic treatment. Weaving warp yarns in the machine direction, including weft yarns,
The warp for supporting the bag is released from the weaving with the weft at appropriate intervals in the longitudinal direction of the mesh to form a loop portion that can communicate in the weft direction, and the bag supporting portion is formed on the surface of the mesh in the weft direction. In addition, the vegetation base for greening is characterized in that a vegetation bag containing vegetation seeds is supported on the bag supporting portion.