JPH05148841A - Reticular body for holding vegetation base material - Google Patents

Abstract

PURPOSE:To obtain a reticular body, which can prevent the flowing and loss of a vegetation base material positively without scaling down knots, sufficient tensile strength of which is maintained as the reticular body for a half year or approximately two years after laying and which decomposes and corrodes. CONSTITUTION:All members such as warp 4, 5, weft 6, 7, 8, etc., constituting a reticular body main body 1 are composed of high-tenacity rayon or a preservative-treated corrosive blank. Flat yarn having 700-4000 deniers, width of 2-6mm and thickness of 30-365mum is used as warp.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As one of the above-mentioned slope greening methods, as shown in FIG. 13, polyethylene (PE) and polypropylene (P
A net-like body having an accommodating portion 41 by stacking two chemically-synthesized plastic nets such as P) and forming a portion which is not woven about 5 cm or a portion which is not fused with each other at intervals of 30 to 50 cm. While forming the main body 42, a fertilizer containing a fertilizer base material 44 such as a fertilizer, a soil improver, and a water retention agent, which is directly or indirectly necessary for plant growth, in a bag 43 made of a non-corrosive non-woven fabric. Forming the bag 45, this fertilizer bag
A net-like body 46 containing 45 in the containing portion 41 is laid on a slope 49 using anchors 47 and pegs 48 as shown in FIG. 14, and then plant seeds, organic materials, chemical fertilizers, and soil. There is a method of spraying a vegetation base material 50, which is, for example, a gel of an improving agent, a water retention agent, etc., onto the net-like body 46 by a spraying machine so as to have an appropriate thickness.

According to this method, the net-like body 42 made of a plastic net prevents the vegetation base material 50 from running away, and the plant seeds contained in the vegetation base material 50 germinate and grow early. By appropriately supplying the fertilizer in the vegetation base material 50 and the fertilizer base material 44 in the fertilizer bag 45 to the plant, it is possible to surely grow the plant on the slope 49 where the growth of the plant was difficult. it can.

[0004]

DISCLOSURE OF THE INVENTION By the way, the above reticulated body
Conventionally, as the weft yarn 46, a warp yarn a formed by chain-knitting a polyethylene yarn is braided with a weft yarn b made of a polyethylene yarn having a width of 6.5 mm and a thickness of 16 μm and a denier of 1000.

However, the polyethylene yarn is soft, and therefore, when the flat yarn having the above-mentioned width is braided, it becomes crumpled and becomes substantially narrower. Moreover, the weft b made of this flat yarn has a sloped surface.
When it is provided along the lateral direction of 49, the weft b is soft, so that it is too close to the slope 49 and the effect of preventing runoff of the vegetation base material 50 is weak, and the weight of the sprayed vegetation base material 50 is weak. As a result, the weft thread b may be stretched out, and the vegetation base material 50
There were some cases in which she could not be completely stopped.

On the other hand, it is conceivable to reduce the mesh size of the net-like body 46, but if this is done, the net-like body 46
Even if you spray the vegetation base material 50 from above with a spraying machine,
It is difficult for the vegetation base material 50 to pass through the mesh, which makes the spraying work troublesome.

There are also the following problems. That is,
The plastic constituting the reticulate body 46 has a characteristic that it does not deteriorate semipermanently under normal conditions, and therefore, unlike other plant and animal materials, it is exposed to wind and rain over many years. It is not weathered or corroded to homogenize with soil or soil. 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, the use of a plastic net in the slope greening method or the like contributes to environmental greening on the one hand.
On the other hand, it also promotes plastic pollution.

In order to avoid the above-mentioned problems caused by the characteristics of the plastic material, a mesh made of a plant material such as jute has been used in the past. Further, viscose rayon is made of regenerated cellulose and is a so-called corrosive material that is completely corroded even after a long period of time, and can be applied to a loom relatively easily. -It is attempted to be used in the case where the mesh is partially corroded, as proposed in Japanese Patent No. 806. Further, in addition to viscose rayon, a reticulate body using a biodegradable plastic as a corrosive material has been proposed in, for example, Japanese Utility Model Laid-Open No. 3-5746.

As described above, in order to corrode the reticulate body, it has been proposed to use various corrosive materials, but in the past, these were not used so much. The reason is as follows. That is, when a corrosive net is laid on the slope and sprayed with vegetation material, most of these nets will be corroded about two months after being laid on the slope, and the required strength will be reduced. Because it will be gone. A period of 2 months is too short for a plant to germinate from the sprayed vegetation material and to grow and flourish sufficiently, thus achieving its original purpose of slope protection and plant growth with a mesh. I can't.

Therefore, a net-like body ideal for use in slope protection and the like maintains mechanical strength such as sufficient tensile strength for about 6 months to 2 years after laying, and after the plant has grown to a certain extent. It can be said that it eventually corrodes and homogenizes in the soil. In this case, when the accommodating portion or the like is formed in the net body and the fertilizer bag or the like is accommodated in the accommodating portion, 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 consideration of the above matters, and an object of the present invention is to surely prevent runoff of a vegetation base material without reducing the mesh size. For example, for about half a year to two years after installation, it maintains a sufficient tensile strength as a net, and then decomposes and corrodes,
Another object is to provide a net-like body in which a bag such as a fertilizer bag is homogenized with soil or soil.

[0013]

In order to achieve the above object, according to the first aspect of the present invention, in a reticulated body composed of a chain-knitted warp and a weft of a flat yarn, all of the warp, weft, etc. constituting the reticulated body main body. Is made of strong rayon, and a flat yarn having a denier of 700 to 4000, a width of 2 to 6 mm, and a thickness of 30 to 365 μm is used as the weft.

According to the second aspect of the present invention, in a net formed of chain-knitted warps and flat yarn wefts, all members such as the warp and the weft constituting the main body of the net are made of a corrosive material subjected to antiseptic treatment. In addition, the weft is 700 to 4000 denier, the width is 2 to 6 mm, and the thickness is 30 to
We use a flat yarn of 365 μm.

According to the third aspect of the invention, the accommodating portion is laterally disposed between the nets of the net body having a double structure in which the front net and the back net, each of which is composed of chain-knitted warp yarns and flat yarn weft yarns, are superposed. In the reticulated body formed in the direction, all members such as warp and weft constituting the reticulated body are made of strong rayon,
0-4000 denier, width 2-6 mm, thickness 30-365μ
While using the flat yarn of m, a fertilizer bag in which a fertilizer base material is accommodated in a bag made of a soluble material in the accommodation section,
A vegetation bag containing a vegetation seed and a vegetation bag containing a vegetation seed are contained in a bag made of a soluble material.

According to the fourth aspect of the invention, the accommodating portion is laterally disposed between the nets of the net body having a double structure in which the front net and the back net, each of which is composed of a chain-knitted warp yarn and a weft yarn of a flat yarn, are superposed. In the reticulated body formed in the direction, all members such as warp and weft that compose the reticulated body are made of corrosive material with antiseptic treatment, and the weft is 700 to 4000 denier, width is 2 to 6 mm, thickness While using a flat yarn of 30 to 365 μm, a fertilizer bag containing a fertilizer base material in a bag made of a soluble material and a vegetation bag containing vegetative seeds in a bag made of a soluble material are housed in the housing part. It contains the vegetation bag that was made.

[0017]

The reticulate body according to the first invention is made of strong rayon such as polynosic rayon and viscose rayon for tire cords. These strong rayons are conventional viscose rayon and conventional viscose rayon. Tensile strength is higher than materials such as biodegradable plastics. For example, the tensile strength of polynosic rayon 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 has characteristics that the strength is not significantly decreased when wet and the strength is decreased with the passage of time. In addition, 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 having such characteristics can maintain the necessary strength for about 6 months to 2 years after laying, and can protect slopes.

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

Since the reticulate body according to the second aspect of the invention is composed of all the members such as the warp and the weft constituting the reticulated body by the corrosive material which has been subjected to the antiseptic treatment, In the latter half to two years of laying, the necessary strength is obtained, and the strength is almost the same as that of the strong rayon. Then, as the effect of the antiseptic treatment weakens or disappears, corrosion begins, which is also corroded and returned to the soil.

In each of the first and second inventions, the vegetation base material can be surely prevented from running away, and the mesh size does not change from the conventional one. Can be performed smoothly as in the past.

According to a third aspect of the present invention, in the structure of the first aspect, a fertilizer bag in which a fertilizer base material is contained in a bag made of a soluble material and a vegetation seed is contained in a bag made of a soluble material in the accommodation section. A vegetation bag containing a bag and a structure containing a vegetation bag are added, and the same effects as those of the above-described first invention are achieved.

In addition to this, a fertilizer bag containing, for example, a fertilizer base material in a bag, and a vegetative bag containing alien seeds as vegetative seeds in the bag are stored in the storage section. When seeds of native plants such as wildflowers, trees and flowers are put into the vegetation base material that is sprayed onto the surface, and when this vegetation base material is sprayed onto the slope, it is a local species together with the exotic plant. Plants and flowers can grow, and the greenery on the slope can be maintained permanently and at the same time the aesthetics can be improved. In this case, since the bag itself in the fertilizer bag and the vegetation bag itself is made of a soluble material, it also gradually corrodes to the soil after a predetermined period of time, like the net-like body.

A fourth aspect of the present invention is the structure of the second aspect, wherein the accommodating portion has a fertilizer bag in which a fertilizer base material is contained in a bag made of a soluble material and a vegetation in which vegetative seeds are contained in the bag made of a soluble material. A vegetation bag that accommodates a bag is added, and the same operational effect as the above-described second invention and the same operational effect as the third invention are achieved.

[0025]

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

1 to 3 show a mesh body according to a first embodiment of the present invention. In these figures, N is a mesh body, and its main body 1 is composed of a front net 2 and a back net 3. The warp yarns 4 and 5 in both nets 2 and 3 are respectively chain-knitted. That is, more specifically,
In the front net 2, for example, 1000 denier 1
Book flat yarn (eg width 2.5mm, thickness 49μ
m) 6 and one monofilament 7 of, for example, 1500 denier, as wefts, a large number of sets at appropriate intervals, warp 4
Is braided. As shown in FIG. 3 in particular, the flat yarn 6 is braided so as to proceed in a zigzag shape between two adjacent warp yarns 4. In the back net 3, a single monofilament 8 of 1500 denier is braided with the warp yarns 5 as weft yarns at appropriate intervals.

These front net 2 and back net 3
Are woven into the warp yarns 4 and 5 at appropriate intervals to leave a portion which is not knitted and are woven together into a net body 1 having a double net structure, and the portion which is not knitted is formed in the accommodating portion 9. .. Although not shown, a reinforcing rope is provided in the same direction as the warp yarns 4 and 5. And the warp 4,
5, each of the wefts 6, 7, 8 and the reinforcing rope has a higher tensile strength than ordinary viscose rayon,
It is composed of polynosic rayon, which has the property that its strength decreases with the passage of time.

Further, in FIG. 1, 10 and 11 are a fertilizer bag and a vegetation bag which are housed and held in the housing portion 9, respectively. The fertilizer bag 10 is made of a soluble material such as a staple non-woven fabric, a pulp non-woven fabric, soluble paper, biodegradable plastic (described later) so that the fertilizer nutrient has a thickness and air permeability that gradually exudes due to rainfall. The bag configured as described above contains a fertilizer, a soil conditioner, a water retention agent, and other fertilizer base materials that are directly or indirectly necessary for plant growth.

Further, the vegetation bag 11 is a water-soluble paper with a polymer film or starch film or a garlic cloth which does not hinder the germination and growth of vegetation and is dissolved by water, for example, the product name Ponlick (Ikeda Paper Industry Forage grass seeds are stored in a bag made of a soluble material such as manufactured by Co., Ltd. As described above, the bags used for the fertilizer bag 10 and the vegetation bag 11 are each made of a soluble material. However, due to the functions of the fertilizer bag 10 and the vegetation bag 11, the bag for the fertilizer bag 10 is for the vegetation bag 11. It is better that it is less soluble than the bag.

As the grass seeds, there are Gleeping Red Fescue, Highland Bentgrass, Red Top, Bermudagrass, Kentucky Bluegrass and the like, which may be appropriately selected and stored in a bag. At this time, a water retaining material or some fertilizer may be stored in the bag.

An example of the slope greening method using the mesh N having the above structure will be described with reference to FIG. As shown in FIG. 1 and FIG. 4, the fertilizer bag 10 is placed inside the accommodating portion 9 of the mesh N.
After inserting the vegetation bag 11 and the reticulated body N, the anchor 12
It is laid so that the back net 3 side is close to the slope 14 and the vegetation bag 11 is located above the fertilizer bag 10 by using a peg 13 or the like.

In this way, seeds, organic materials, chemical fertilizers, soil conditioners, water retention agents, etc. are mixed from above the reticulated body N laid on the slope 14 to form, for example, a gel-like vegetation base material, It is sprayed by a suitable spraying machine so as to have a suitable thickness. In addition, in FIG. 4, 15 shows the sprayed vegetation base material.

The seeds used for spraying the vegetation base material include yellow daisies, French chrysanthemums, Daikin daisies, sawtooth grass, fly squirrels, California poppies, purple hanahana, gypsophila, cosmos, citrus cabbage, narcissus, ginseng and the like. flower and seed, mugwort, silver grass, Medohagi, grass seeds, such as Polygonum cuspidatum or, Akamatsu, Alnus firma, strip weasel, Yamahagi, there are seeds of trees such as top tether, by selecting them appropriately Good.

The mesh N is made up of the warp yarns 4,
5 and the wefts 6, 7 and 8 each have a higher tensile strength than ordinary viscose rayon, but are composed of polynosic rayon having the characteristic that the strength thereof decreases with the passage of time. When laid on the slope 14, the required strength can be maintained and the slope 14 can be protected for about 6 months to 2 years after the installation.

Therefore, from the upper surface of the mesh N, the vegetation substrate is
Even if 15 is sprayed, the weft yarn is not fully stretched due to the weight of the reticulated body N of the vegetation base material 15.
It can almost completely prevent 15 exiles. And
Since the monofilament 7 functions as a reinforcing material, the effect of preventing the vegetation base material 15 from running away is improved as compared with the conventional net-like body of this type. Further, since it is not necessary to make the mesh of the reticulate body 1 smaller than necessary, but rather it can be made larger than the conventional one, the vegetation base material 15 can be sprayed efficiently and the vegetation base material 15 can be sprayed. Slope 14
Can be closely attached to.

On the slope 14, the grass in the vegetation bag 11 accommodated in the accommodating portion 9 of the net N grows fast and grows in a streak shape to protect the slope 14. Then, in other parts of the net N, wild grass, trees and flowers germinate from the sprayed vegetation base material 15, but since it is distant from the pasture grass, it can grow without being affected by the pressure, and the slope 14
The entire plant will be green.

During the period until the plant germinates and grows (for example, about half a year to two years), the reticulate body N maintains its strength, so that the vegetation base material 15 on the slope 14 runs away. Never. Then, in the reticulate body N, the reticulate body 1 is gradually reduced in strength after the plant grows to some extent and grows and is decomposed and corroded to be tattered, and finally returned to the soil. In addition, since the fertilizer bag 10 and the vegetation bag 11 themselves stored in the storage portion 9 are made of a soluble material, they also gradually dissolve and return to soil.

5 (A), 5 (B) and 6 show a net body 1 according to a second embodiment of the present invention. In this embodiment, the net body 2 is provided on the front net 2 and the back net 3, respectively. As the monofilament, 800 denier 7 ', 8', which is slightly thinner than that of the first embodiment, is used, and other configurations are the same.

7 (A), (B) and FIG. 8 show a mesh body 1 according to a third embodiment of the present invention. In this embodiment, the mesh body 1 according to the second embodiment is As a weft yarn for the back net 3, one flat yarn of 800 denier (this flat yarn is the same as the flat yarn 6 of the front net 2) 16 is added to the constitution as the weft yarn of the front net 2. The net 2 and the back net 3 are configured so as to have exactly the same form.

It goes without saying that the net body main body 1 according to the second and third embodiments has the same or more effects as the net body main body 1 according to the first embodiment.

Although not shown, in the net body 1 according to the third embodiment, the monofilaments 7'and 8'may be removed from the structure of the front net 2 and the back net 3. Further, the flat yarn 6 (or 16) in each of the above-mentioned embodiments is not limited to the yarn having the above-mentioned denier number, width and thickness, and 700 to
4000 denier, width 2-6 mm, thickness 30-365 μm
The thread can be selected and used as appropriate.

In the above embodiment, the seeds of an alien plant such as grass are stored in the vegetation bag 11 housed in the housing portion 9 of the mesh N, and the vegetation base material 15 is sprayed on the slope 14. Although the seeds of native species plants such as wildflowers and trees are used as the constituent members of, instead of this, the seeds of the native species plants and flowers are housed in the vegetation bag 11, and as a constituent member of the vegetation base material 15. You may make it use the seed of an alien species plant.

Further, the vegetation base material 15 is not limited to the above gel-like material, but includes seeds, organic materials, chemical fertilizers, soil conditioners,
It may be a so-called dry type which does not use water, which is simply a sufficient mixture with a water retention agent, and can also be used in a wet spraying method using a hydrocedar or gunki. Also,
As the vegetation material to be sprayed, a material such as PM C material (registered trade name owned by Jomo Ryokusan Kogyo Co., Ltd.) obtained by processing sludge into vegetation material is used and sprayed by a spraying machine using a mini cleat pump. You may do it.

In the above-mentioned embodiment, the gel or dry vegetation base material 15 is sprayed from the top of the reticulated body N laid on the slope 14, but the reticulated body N according to the present invention has such a structure. It can also be used for constructions other than the method, for example, a construction method in which the vegetation base material 15 is not sprayed on the mesh N, which will be described with reference to FIG.

That is, FIG. 9 (A) shows the one in which the mesh N is laid on the slope 14, and in this example, the fertilizer bag 10 and the fertilizer bag 10 are provided in every other accommodating portion 9A. California poppies, purple flowers, gypsophila, cosmos,
In addition to accommodating seeds of annual flower plants such as Kateto and seeds of perennial flower plants such as Kawana deco, ginseng, saw grass, chrysanthemum chrysanthemum, Dairyoku chrysanthemum, etc., as well as with a vegetation bag 11A A vegetation bag 11B is provided in the accommodation section 9B, in which seeds of grass such as Kentucky bluegrass, Bermudagrass, and Olympic tall fes are properly selected and accommodated.

Further, in the one shown in FIG. 7B, a layer 18 of cotton wool or the like, which is sprinkled and sown with seeds 17 of the annual flower plant, is attached to the net N while the fertilizer bag is placed in the accommodating portion 9A. 10 and a vegetation bag 11C containing the seeds of a perennial flower plant, and a net N containing the vegetation bag 11B containing the seeds of grass in the containing portion 9B. It is laid so as to be close to 14.

Further, in the structure shown in FIG. 6C, a layer 18 of cotton wool or the like in which seeds 19 of an annual flower plant and a perennial flower plant are sown and sown is adhered to the net N while the accommodating portion 9A is accommodated. The reticulate body N is formed by accommodating the fertilizer bag 10 and the vegetation bag 11B containing the grass seeds therein, and accommodating the fertilizer bag 10 in the accommodating portion 9B. The layer 18 is close to the slope 14. Is laid.

Further, in the one shown in FIG. 6D, the layer 18 such as the soft surface on which the seeds 20 of the grass are sown and seeded is reticulated.
On the other hand, the fertilizer bag 10 and the vegetation bag 11A containing the seeds of the annual flower plant and the perennial flower plant are accommodated in the accommodation section 9A, and the fertilizer bag 10 is accommodated in the accommodation section 9B. The reticulated body N is laid so that the layer 18 is close to the slope 14.

Further, in the case shown in FIG.
A layer 18 such as a suf surface on which grass seeds 20 are spread and sown is attached to the net N, while a fertilizer bag 10 and a vegetation bag 11C containing seeds of a perennial flower plant are housed in the housing 9A. Also, a vegetation bag containing seeds of annual flower plants in the accommodation section 9B.
A net-like body N containing 11D is laid so that the layer 18 is close to the slope 14.

By the way, the above-mentioned reticulated body uses strong rayon such as polynosic rayon and viscose rayon for tire cord as its constituent material, but the present invention is not limited to this, and each of the above All members constituting the net body 1 such as the warp yarns 4 and 5 which form the front net 2 and the back net 3 in the embodiment, the weft yarns 6, 7 and 8, and the reinforcing rope are made of a corrosive material that has been subjected to an antiseptic treatment. However, the same action and effect as those of the reticulated body N made of the strong rayon described above may be provided. As the antiseptic treatment means, a water repellent, an adhesive, an antifungal agent, an antibacterial agent, an antiseptic agent and the like can be used, which will be described in detail below.

First, the corrosive material is animal-based,
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. Further, as the chemical material, there are a polyolefin-based material easily corroded by chemicals, recycled fiber such as viscose rayon, microbial degradable plastic, and photodegradable plastic. 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 Inc., USA) and trade name Plastigon (manufactured by US Idea Masters Inc.).

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, 21 is a known viscose rayon manufacturing apparatus, 22 is a dryer, 23 is a water repellent treatment tank containing a water repellent 24, 25 is a pair of squeezing rollers, and 26
Is a dryer, 27 is a curing device, and 28 is a winding device. As the water repellent 24, for example, a 5 to 7% solution such as Asahi Guard AG-310 or AG-433 (both manufactured by Asahi Glass Co., Ltd.) can be used.

In the thus constructed apparatus, the viscose rayon 29 fed from the viscose rayon production apparatus 21 is pre-dried in the dryer 22 at an appropriate temperature. The pre-dried viscose rayon 29 has the water repellent agent 24 in the water repellent treatment tank 23 hidden therein. Next, water repellent 24
The viscose rayon 29, which was dipped in, is a pair of diaphragm rollers.
It is appropriately squeezed at 25, reaches the dryer 26, and undergoes a predetermined drying process. Then, the viscose rayon 29 that has been subjected to this drying treatment, for example, in the curing device 27,
After being cured at 150 ° C. for 3 minutes or 170 ° C. for 1 minute, it is wound by the winding device 28.

FIG. 12 shows the viscose rayon 30 which has been subjected to the water repellent treatment as described above. In FIG. 12 (A), the film layer 31 made of the water repellent agent 24 is formed on the outer periphery of the viscose rayon 28. Are formed. Further, in the structure shown in FIG. 3B, a coating layer 31 is formed on the outer circumference of the viscose rayon 29, and a permeation layer 32 in which the water repellent 24 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. 10 and may be configured as shown in FIG. 11, for example. That is, in this figure, the viscose rayon 29 fed from the viscose rayon manufacturing device (not shown) is passed through the water repellent agent applying device 33 to apply the water repellent agent 24 to the surface thereof, and thereafter, Dry in the dryer 34, and
After performing a predetermined curing by a curing device (not shown), the winding device 28 winds the film.

By any of the water repellent treatments shown in FIG. 10 or 11, the water repellent viscose rayon 30 as shown in FIGS. 12 (A) and 12 (B) can be obtained. Unlike the conventional viscose rayon 29, the course rayon 30 has little decrease in strength when wet, and has properties almost equivalent to those of the above-mentioned strong rayon. And
The water repellent viscose rayon 30 is used to form the reticulate body N and to form a bag for containing the fertilizer base material and the vegetation base material.

Further, the water-repellent reticulated body is, as in the above-mentioned embodiment, made of a material before being woven on the loom, that is, a material which has been water-repellently treated at the stage of monofilament or flat yarn. It may be woven on a loom to form a reticulated body, or it may be woven or woven into a reticulated body of a predetermined shape using a monofilament or flat yarn, and then immersed in a water repellent or showering or spraying the water repellent. You may apply by using such means.

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. Was applied to the entire surface, and the other reticulate body was untreated, and these were laid on a south-facing slope with a gradient of 10 minutes, in September 1989, and the degree of corrosion and the tensile strength after laying were examined. The results shown in Table 1 were obtained.

[0059]

[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 exerts the same effect as the conventional reticulated body for about two years after being laid. It should be noted that, in the above test, the net-like body was covered with vegetation half a year after it was laid.

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-like body may be formed or a water-repellent treatment may be applied to the net-like body made of these corrosive materials.

The water repellent 24 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, trade name Asahi Guard AG-710 or AG-730 ( 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, the desired strength can be maintained within a predetermined period after laying by applying the water repellent treatment to the mesh body made of a corrosive material,
The reticulate body is gradually decomposed and corroded after the lapse of the period, but it can be treated with an adhesive as a method of delaying the decomposition / corrosion of the reticulate body made of a corrosive material. As the adhesive used for this treatment, for example, acrylic resin-based trade names Polysol A-403-2 and AT-13
0, AP-6710 (both manufactured by Showa Polymer Co., Ltd.) may be used, and these are diluted 2 to 3 times and applied to a mesh made of a corrosive material, or this mesh is diluted. It may be dipped in an adhesive.

By the way, the decomposition / corrosion of the reticulate body made of a corrosive material is due to the presence of water as well as the bacteria that decomposes / corrodes the corrosive material. Therefore, one or both of them are kept away from each other for a certain period of time. If you do
It is possible to delay the decomposition / corrosion of the mesh made of corrosive material for a certain period. Therefore, a net-like body made of a corrosive material has a trade name of Benlate (produced by DuPont), a trade name of Topzin M (produced by Nippon Tanka Co., Ltd.), and a trade name of Xylamon EX.
Antifungal agents, such as (Takeda Pharmaceutical Co., Ltd.), antibacterial agents, preservatives, etc. may be applied to or the reticulate body may be dipped in these chemicals.

[0065]

As described in detail above, the mesh body according to the present invention can surely prevent the vegetation base material from running away.
Moreover, since it is not necessary to reduce the mesh size, the vegetation base material can be sprayed smoothly.

Further, the reticulated body according to the present invention can maintain a desired strength within a predetermined period after being laid on a slope or the like, and is gradually decomposed and corroded after the lapse of the period, When the mesh is laid on the slope and then the vegetation material is sprayed on the slope, the erosion of the slope is prevented by the mesh. And since the reticulate body maintains its strength until the plant grows and grows from the sprayed vegetation material, the vegetation material does not run away and the slope is greened all over. It

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.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a mesh body according to a first embodiment of the present invention.

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

FIG. 3 is a plan view showing a main part of a net body.

FIG. 4 is a cross-sectional view showing a state where a slope surface is subjected to a greening method using the mesh body.

5A and 5B are a perspective view and a side view, respectively, showing a main part of a mesh body according to a second embodiment.

FIG. 6 is a plan view showing a main part of a net body.

7A and 7B are a perspective view and a side view, respectively, showing a main part of a mesh body according to a third embodiment.

FIG. 8 is a plan view showing a main part of the mesh body main body.

9 (A) to 9 (E) are diagrams showing aspects of another greening method using the mesh body according to the present invention.

FIG. 10 is a diagram showing an example of a step of subjecting a corrosive material to a water repellent treatment.

FIG. 11 is a diagram showing another example of a step of subjecting a corrosive material to a water repellent treatment.

12 (A) and 12 (B) are diagrams showing a cross section of a corrosive material that has been subjected to a water-repellent treatment.

FIG. 13 is a perspective view showing a main part of a conventional mesh body.

FIG. 14 is a cross-sectional view showing a state in which a slope is subjected to a greening method using a conventional mesh body.

[Explanation of symbols]

1 ... Net body, 2 ... Front net, 3 ... Back net, 4, 5 ... Warp, 6, 7, 8 ... Weft, 9, 9A, 9B ... Storage part, 10 ... Fertilizer bag, 11, 11A, 11B, 11C, 11D ... vegetation bags,
N ... Reticulated body.

[Procedure amendment]

[Submission date] February 8, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 4

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction content]

According to the third aspect of the invention, the accommodating portion is laterally disposed between the nets of the net body having a double structure in which the front net and the back net, each of which is composed of chain-knitted warp yarns and flat yarn weft yarns, are superposed. In the reticulated body formed in the direction, all members such as warp and weft constituting the reticulated body are made of strong rayon, and the weft is 7
00-4000 denier, width 2-6 mm, thickness 30
One of a fertilizer bag containing a fertilizer base material in a bag made of a soluble material and a vegetation bag containing vegetative seeds in a bag made of a soluble material is used in the containing portion while using a flat yarn of ~ 365 μm. It is housed.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

According to the fourth aspect of the invention, the accommodating portion is laterally disposed between the nets of the net body having a double structure in which the front net and the back net, each of which is composed of a chain-knitted warp yarn and a weft yarn of a flat yarn, are superposed. In the mesh formed in the direction, all members such as warp and weft constituting the mesh body are made of a corrosive material subjected to antiseptic treatment, and the weft is 700 to 4000 denier and has a width of 2 to 6 m.
m, a flat yarn having a thickness of 30 to 365 μm is used, a fertilizer bag containing a fertilizer base material in a bag made of a soluble material, and a vegetation bag containing vegetation seeds in the bag made of a soluble material in the containing portion. It accommodates either one of.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

According to a third aspect of the present invention, in the structure of the first aspect, a fertilizer bag in which a fertilizer base material is contained in a bag made of a soluble material and a vegetation seed is contained in a bag made of a soluble material in the accommodation section. The bag has a configuration in which one of the vegetation bag and the vegetation bag is accommodated, and has the same effect as the first invention described above.

[Procedure correction 6]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

In addition to this, either one of a fertilizer bag in which a fertilizer base material is contained in the bag and a vegetation bag in which alien plant seeds are contained as vegetation seeds in the bag are housed in the housing section. At the same time, the seeds of native plants such as wildflowers, trees and flowers are put into the vegetation base material that is sprayed onto the slope, and when this vegetation base material is sprayed onto the slope surface, along with the exotic plant. It can also grow native plants and flowers, which can permanently maintain the greenery of the slope and improve its aesthetics. In this case, since the bag itself of the fertilizer bag or the vegetation bag itself is made of a soluble material, it also gradually corrodes and returns to soil after a predetermined period of time, like the mesh body.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction content]

A fourth aspect of the present invention is the structure of the second aspect, wherein the accommodating portion has a fertilizer bag in which a fertilizer base material is contained in a bag made of a soluble material and a vegetation in which vegetative seeds are contained in the bag made of a soluble material. A structure for accommodating either one of the bags is added, and the same function and effect as the above-described second invention and the same function and effect as the third invention are achieved. ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 30, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

In order to avoid the above-mentioned problems caused by the characteristics of the plastic material, a mesh made of a plant material such as jute has been used in the past. In addition, viscose rayon is made of regenerated cellulose, is a so-called corrosive material that 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 has been attempted to be used in the case where the mesh body is partially corroded. Furthermore, in addition to viscose rayon, a reticulate body using a biodegradable plastic as a corrosive material has been proposed in, for example, Japanese Utility Model Publication No. 3-5746.

Claims (4)

[Claims] 1. A net for vegetation base material holding comprising a chain knitted warp and a flat yarn weft, wherein all members such as the warp and the weft constituting the net body are made of strong rayon, and the weft As 700-4000 denier,
A net-like body for holding a vegetation substrate, which is characterized by using a flat yarn having a width of 2 to 6 mm and a thickness of 30 to 365 μm. 2. A net-like body for holding a vegetation base material, comprising a chain-knitted warp and a weft of a flat yarn, wherein all members such as the warp and the weft constituting the main body of the net are made of a corrosive material subjected to antiseptic treatment. As a weft yarn,
700-4000 denier, width 2-6 mm, thickness 30-365
A mesh for holding a vegetation substrate, characterized by using a flat yarn of μm. 3. An accommodating portion is formed in a lateral direction between both nets of a net body having a double structure in which a front net and a back net, each of which is composed of a chain-knitted warp yarn and a weft yarn of a flat yarn, are superposed on each other. In the vegetation base material holding net, all members such as the warp and the weft constituting the net body are made of strong rayon, and the weft is 700-
While using a flat yarn of 4000 denier, a width of 2 to 6 mm, and a thickness of 30 to 365 μm, a fertilizer bag containing a fertilizer base material in a bag made of a soluble material and a bag made of a soluble material in the accommodation section. A reticulated body for holding a vegetation base material, which comprises a vegetation bag containing vegetation seeds. 4. An accommodating portion is formed in a lateral direction between both nets of a net body having a double structure in which a front net and a back net, each of which is composed of a chain-knitted warp yarn and a weft yarn of a flat yarn, are superposed on each other. In the vegetation base material holding net, all members such as the warp and the weft constituting the net body are made of a corrosive material subjected to antiseptic treatment, and the weft is 700 to 4000 denier and has a width of 2 to 6 mm. Thickness
While using a flat yarn of 30 to 365 μm, a fertilizer bag containing a fertilizer base material in a bag made of a soluble material and a vegetation bag containing vegetative seeds in the bag made of a soluble material were housed in the housing part. A net-like body for holding a vegetation base material characterized by the above.