JPH06193071A - Vegetation material - Google Patents

Abstract

PURPOSE:To maintain the strength of a vegetation material, and ensure the proper growth of plant seeds by applying antibacterial treatment to the vegetation material made of a corrosive element, and adjusting a term up to the cracking and corrosion thereof. CONSTITUTION:A fertilizer bag 4 and a mat 5 are made of a corrosive material such as cotton and hemp. An antibacterial agent containing dimethylbenzil ammonium chloride as an effective ingredient is then applied or sprayed to a vegetation material 2, or this material 2 is immersed therein for the antibacterial treatment. The corrosion cracking of the material 2 due to a microorganism is thereby restrained. For example, the corrosion cracking of the material 2 is restrained for approximately one year when a plant seed 8 sprouts and grows to a certain extent. Then, when the seed 8 grows further to a certain extent and a corrosion restraining effect is lost, the material 2 is made to corrode and crack. Concurrently, the antibacterial agent is homogenized with soil. As a result, the plant seed 8 can be held in the mat 5 during the growth season thereof and, therefore, the proper growth of the seed 8 can be properly maintained.

Description

Detailed Description of the Invention

[0001] The present invention relates to a vegetation material and other vegetation materials attached to a greening net used for greening work on slopes and the like.

[0002]

2. Description of the Related Art Generally, on slopes of hillsides formed by road construction and land development, plants are vegetated and greened in order to protect them and preserve the scenery. Therefore, the inventors of the present invention have previously reported that,
No. 2204, Japanese Utility Model Publication No. 58-5709, and Japanese Patent Application Laid-Open No. 61-179923, there is no need for large-scale equipment or complicated construction, and simple construction means and economically We proposed a greening mesh that can green the slopes.

The above netting for greening has a housing part formed in the net body, and a fertilizer bag filled with an organic material, a water retaining material and fertilizer is housed in the housing part, and the net body is a plant. Sticking a tension turf strip made of crepe paper or the like holding seeds or fertilizer, or sticking a mat capable of germination and growth of plant seeds to the reticulate body, and holding the plant seeds on the mat It is a thing. Then, by laying such a greening net on the slopes and the like, the plant seeds are germinated and grown to green the slopes and the like.

By the way, in forming the above-mentioned greening net body, the plant seeds germinate from the net body main body and the vegetation material attached to the net body main body, that is, the above-mentioned tension grass body and mat. Roots on slopes and holds a certain strength until the plant seeds grow to some extent, preventing movement of the plant seeds, ensuring water retention of soil, and protecting the slope surface etc. Therefore, it is necessary to secure a stable plant vegetation base. Further, even in the fertilizer bag that constitutes the vegetation material, if it is decomposed and corroded at an early stage, the organic materials, water retention materials, fertilizers, etc. contained therein will flow out before the plant seeds germinate and grow. Therefore, the fertilizer bag also needs to maintain a predetermined strength for a certain period.

In order to maintain the vegetation material at a predetermined strength for a certain period of time, it is considered that the vegetation material is formed of, for example, synthetic fiber which is not semi-permanently deteriorated. There is a problem that the vegetation material remains semipermanently without being exposed to weather and weathering or corroding to be homogenized in soil over a long period of time, resulting in pollution problems.

Therefore, in order to solve the above problems, it is attempted to form the vegetation material by using plant fibers such as jute or cotton, or a corrosive material such as rayon cotton made of regenerated cellulose. Has been.

[0007]

However, as described above, when a plant fiber such as jute or cotton or a corrosive material such as rayon cotton is used as the material for the vegetation material, the following is required. There will be problems. That is, the ideal vegetation material used for the greening mesh retains sufficient tensile strength for about 6 months to 1 year after installation,
It is desirable that after the plant has grown to a certain degree, it corrodes and becomes homogenized with the soil. However, the vegetation material using the corrosive material as described above is about 2 months after laying on the slope. After that, most of them are decomposed and corroded, that is, in the case where the vegetation material is the tension grass body or mat, these are decomposed and corroded at an early stage to move the plant seeds or soil. The water retention of the water, or the runoff of the slope surface,
The vegetation base strength necessary for vegetating plants will not be obtained, while in the case of fertilizer bags, organic materials, water retention materials and fertilizers contained inside will flow out before the plants grow. That is, in other words, the above-mentioned period of two months is too short in terms of allowing the plant seeds to germinate well.

The inventors of the present invention have been continuing research and development for obtaining the optimum material for greening slopes and the like. However, when a corrosive material is used as a vegetation material, this vegetation is used. Focusing on the fact that the strength of the plant material is reduced early by decomposition and corrosion by microorganisms such as bacteria, we know that the antibacterial treatment of the vegetation material can control the decomposition and corrosion of microorganisms on this vegetation material. As a result, the present invention has been completed. Then, the purpose is to maintain a predetermined strength in the vegetation material for a certain period of time when the plant seeds germinate and grow to some extent, and after the plant seeds have grown to some extent, decompose the vegetation material with the microorganisms. The purpose is to corrode the vegetation material to homogenize it with the soil so that it can contribute to environmental greening without causing pollution problems.

[0009]

In order to achieve the above object, the vegetation material of the present invention is characterized in that it is formed by using a corrosive material subjected to antibacterial treatment.

For the antibacterial treatment, it is preferable to use an antibacterial agent containing dimethylbenzylammonium chloride as an active ingredient.

[0011]

The vegetation material of the present invention is formed by using a corrosive material. This corrosive material is decomposed and corroded by microorganisms such as bacteria and eventually disappears. Since antibacterial treatment is applied, decomposition and corrosion by microorganisms is suppressed by this antibacterial treatment, and a period of about half a year to one year is required for plant seeds to germinate and grow to some extent on slopes of hillsides. The strength is maintained, and the plant seeds can be satisfactorily grown with the vegetation material.

When the plant seeds have grown to a certain extent, the anticorrosive effect of the antibacterial treatment on the corrosive material is gradually lost, and the corrosive material is decomposed and corroded by microorganisms and finally soil. Therefore, the vegetation material can contribute to environmental greening without causing semi-permanent remaining on slopes or the like and causing pollution problems.

When the above antibacterial treatment is applied,
By using an antibacterial agent containing dimethylbenzylammonium chloride as an active ingredient, for example, an antibacterial agent such as lauryldimethylbenzylammonium chloride or octadecyldimethylbenzylammonium chloride,
The corrosion inhibiting effect of microorganisms or the like on the corrosive material can be satisfactorily exhibited, and the vegetation material can secure the tensile strength over a certain period necessary for the plant seeds to germinate and grow, and the plant seeds can be grown well. be able to. Furthermore, the above antibacterial agent, when the plant seeds have grown to some extent, the corrosion inhibiting effect on the corrosive material is lost, so that the vegetation material can be decomposed and corroded by microorganisms to be homogenized with the soil. , It is the most suitable for environmental greening. By appropriately adjusting the coating ratio of the antibacterial agent to the corrosive material, the decomposition and corrosion period of this corrosive material can be adjusted arbitrarily.

[0014]

EXAMPLES Examples of the vegetation material attached to the greening mesh according to the present invention will be described below with reference to the drawings. The green reticulate body shown in FIGS. 1 and 2 has a warp 1a and a weft 1b.
A net body 1 made by knitting and is provided with various vegetation materials 2 attached to the net body 1.

That is, in the embodiments shown in the respective drawings, accommodating portions 1c are formed at a plurality of locations on the mesh body 1, and inside the accommodating portions 1c, as the vegetation material 2, an organic material, a water retaining material, and A fertilizer bag 4 made of non-woven fabric or the like in which a vegetation base material 3 such as fertilizer is stored is inserted and stored, and at the same time,
As the vegetation material 2, a mat 5 made of thin cotton wrap, non-woven fabric or the like is bonded and integrated on one outer surface of the net body 1 with a water-soluble sizing agent 6 such as polyvinyl alcohol. The same water-soluble glue 7 as above
The plant seeds 8 are attached and held via the. It is also possible to attach to the reticulate body 1 a so-called tension grass body in which the fertilizer, the soil improving material and the like are sandwiched between the thin materials together with the plant seeds 8 instead of the mat 5.

The green reticulate body thus constructed is laid on a slope N such as a hillside and fixed with anchor pins or anchor bolts as shown in FIG. 2, for example.

Therefore, according to the present invention, the vegetation material 2 attached to the above greening net, that is, the fertilizer bag 4 and the mat 5 described above, and the mat 5 on the net body 1 are used.
When sticking the stretched grass instead of the above, the constituent material is made of a corrosive material.

Examples of the corrosive material include cotton that is decomposed and corroded by microorganisms such as bacteria and disappears over time,
Natural fibers such as silk and hemp, regenerated fibers such as viscose rayon composed of regenerated cellulose, further, the above-mentioned corrosive fiber alone or a mixed fiber composed of the corrosive fiber and synthetic fiber is used. To do.

Further, as the corrosive material, in addition to those mentioned above, polyolefin-based chemical fibers easily corroded by chemicals, biodegradable chemical fibers such as microbial degradable plastics and photodegradable plastics, etc. Can also be used.

Among the biodegradable chemical fibers, microbial degradable plastics include, for example, trade name Tone (US AM
KO), trade name Pullulan (made by Hayashibara Co., Ltd.), trade name Soar Phil (made by Mitsubishi Rayon Co., Ltd.), etc.
Further, as the photodegradable plastic, for example, trade name Polygrad (manufactured by Anvas, USA), trade name Plastigon (manufactured by Ideamasters, USA) and the like are used.

Further, when a mixed-spun fiber composed of the corrosive fiber and the synthetic fiber is used as the constituent material of the vegetation material 2, the synthetic fiber is not permanently decomposed by microorganisms and is permanently stretched to a predetermined tension. For example, vinylon-based materials such as polyvinyl alcohol, polyester-based materials such as polyester, polyamide-based materials such as nylon, and polyacrylonitrile-based materials such as acryl are used to ensure strength. The compounding ratio of the corrosive fiber is 60 to 80% and the synthetic fiber is 40%.
Mixtures of up to 20% are preferred.

As described above, when the mixed fiber is used as the constituent material of the vegetation material 2, the synthetic fiber holds the predetermined tensile strength semipermanently, and the reticulated body main body 1 is provided with the sloped surface. When laid in N, the synthetic fibers are not homogenized with the soil and eventually remain in the soil, but the blending ratio of the synthetic fibers to the corrosive fibers is low, and the blending ratio is Since all the corrosive fibers that have been made large are homogenized with the soil, they can contribute to environmental greening without causing pollution problems as in the case where the entire vegetation material 2 remains in the soil. is there.

By the way, as described above, when the vegetation material 2 is made of a corrosive material, microorganisms such as bacteria decompose the corrosive material when the greening net is laid on the slope N. Since it is caused by corrosion, if the corrosive material is subjected to an antibacterial treatment, decomposition and corrosion of the vegetation material 2 by the microorganisms can be suppressed for a predetermined period. That is, when the vegetation material 2 is the above-mentioned stretched grass or mat 5, the plant seed 8 germinates and roots on the slope N, and the mat is treated by the antibacterial treatment until the plant seed 8 grows to some extent. 5 can suppress decomposition and corrosion of microorganisms, and the mat 5 or the like can maintain a predetermined strength to prevent the plant seeds 8 from moving by the mat 5 or the like or to secure water retention of the soil. The surface of the slope N can be protected to secure a stable plant vegetation base, and even if the vegetation material 2 is the fertilizer bag 4, the predetermined strength is maintained for a certain period of time. It is possible to prevent early outflow of the organic material, the water retaining material, the fertilizer, and the like contained in the fertilizer bag 4, and to cultivate the plant seed 8 satisfactorily.

When the vegetation material 2 made of the above corrosive material is subjected to antibacterial treatment, for example,
Lauryl dimethyl benzyl ammonium chloride (trade name, Meila Pit V-4, manufactured by Meisei Chemical Industry Co., Ltd.
3), an antibacterial agent such as octadecyldimethylbenzylammonium chloride (trade name, Makabinone SMB-85 manufactured by the same company) is effectively used.

Particularly, those containing the above-mentioned dimethylbenzylammonium chloride as an active ingredient, that is, the lauryldimethylbenzylammonium chloride and octadecyldimethylbenzylammonium chloride have an effect of inhibiting corrosion of the vegetation material 2 by microorganisms such as bacteria. The plant seeds 8 can be satisfactorily exhibited, and the plant seeds 8 can be surely secured in the vegetation material 2 for a certain period of time necessary for the plant seeds 8 to germinate and grow to some extent, and the plant seeds 8 can be satisfactorily grown. further,
Each of the antibacterial agents loses their corrosion inhibiting effect on the vegetation material 2 when the plant seeds 8 grow large.
Since this vegetation material 2 can be decomposed and corroded by microorganisms to be homogenized with soil, it is optimal for environmental greening.

In addition, when the above-mentioned vegetation material 2 is subjected to antibacterial treatment using the above-mentioned various antibacterial agents, the vegetation material 2 is subjected to antibacterial treatment at the stage of material, and the vegetation material 2 is used for vegetation. The material 2 is produced, or an antibacterial treatment is applied after the production of the vegetation material 2.

Further, when the vegetation material 2 is subjected to antibacterial treatment, the vegetation material 2 is coated with or sprayed with the antibacterial agent, or the vegetation is placed in a treatment tank loaded with the antibacterial agent. It is performed by immersing the working material 2 and applying the antibacterial agent to the outer surface thereof.

When the above antibacterial treatment is applied,
The antibacterial agent is preliminarily added internally to the material forming the vegetation material 2, and the vegetation material 2 is manufactured by using the material to which the antibacterial agent is internally added, so that the vegetation material 2 has an antibacterial function. You may have it. In particular, when the antibacterial agent is internally added, as the raw material of the vegetation material 2, a chemical fiber of a polyolefin type, which is easily corroded by a chemical, or a biodegradable plastic such as a biodegradable plastic or a photodegradable plastic is used. It is used when using chemical fibers.

Next, an embodiment of the case where the vegetation material 2 is subjected to antibacterial treatment will be described with reference to FIG. The embodiment of the figure shows an apparatus for applying an antibacterial treatment by a dipping means to a material 10 made of cotton non-woven fabric, which is a constituent material of the vegetation material 2, in which 11 is a feed roller for the material 10.
Reference numeral 12 is a processing tank loaded with the antibacterial agent 13, 14 is a pair of upper and lower squeezing rollers, 15 is a dryer, and 16 is a winding roller. The antibacterial agent 13 to be loaded in the processing tank 12 is 1 to 1
A 0% solution, especially a 3-5% solution, is optimal.

In the above apparatus, first, the material 10 is fed out from the feed roller 11, and the processing tank 1 is fed.
After passing through the antibacterial agent 13 in 2, the material 10 is subjected to antibacterial treatment. After that, the material 10 is squeezed by the squeezing roller 14, passes through the dryer 16, is subjected to a drying process, and is wound around the winding roller 16. And, by the material 10 that has been subjected to the antibacterial treatment as described above,
The fertilizer bag 4 and the mat 5 which are the vegetation material 2 are manufactured.

Next, the following two tests were conducted in order to examine the degree of corrosion when the corrosive material forming the vegetation material 2 was subjected to antibacterial treatment. First, in Test 1, a cotton nonwoven fabric was used as the corrosive material, and a 3% solution of the above-mentioned Mailrapit V-43 was prepared as the antibacterial agent. The Mailrapit solution was added to the cotton nonwoven cloth at a rate of 10 g per square meter. And a fertilizer bag was sewn with a cotton non-woven fabric coated with such a Mailrapit solution to form Sample A of the present invention. Further, a cotton non-woven fabric coated with the Mailrapit solution at a rate of 25 g per square meter was used. The sewn fertilizer bag was used as Sample B of the present invention, and
As a comparative example, a fertilizer bag sewn with a cotton non-woven fabric that was not subjected to antibacterial treatment was used as Sample C. Then, each of the samples A, B, and C described above was loaded with a fertilizer, a water retaining material, and a soil improving material, respectively, and these samples were stored in a storage portion provided in the net body, and the net body was used as a slope. After laying, the situation in which each sample had holes and was corroded was observed with time. The results of Test 1 above are shown in Table 1 below.

[0032]

[Table 1]

Further, in Test 2, rayon cotton was adhered at a rate of 30 g per 1 square meter to a net body made of polysingle net using a lapping machine,
After this, the above-mentioned Mailrapit V-43 was used as the antibacterial agent.
Of the rayon cotton and the area in which the rayon cotton was coated with the mailerpit solution at a rate of 10 g per square meter, and a region in which the rayon cotton was not coated with the mailerpit solution were provided in a defined manner. The area coated with the Mailrapit solution was designated as Sample D of the present invention, and the uncoated area was designated as Comparative Example E. Then, the net body was laid on the embankment slope, and the corrosion state of each of the samples D and E was observed with time. Further, chemical fertilizer was adhered to the rayon cotton at a rate of 100 g per square meter. The rayon cotton was not adhered to plant seeds because it is difficult to observe the degree of corrosion. The results of Test 2 above are shown in Table 2 below.

[0034]

[Table 2]

In Tests 1 and 2, the movement of microorganisms is active, and decomposition and corrosion by the microorganisms are most likely to occur.
It went from the moon over time.

As is clear from Table 1 above, the sample C used as a comparative example has a corrosion rate of 35% within 2 months after installation and is almost completely corroded by the time 4 months have elapsed. On the other hand, in the sample A of the present invention, although decomposition and corrosion by microorganisms gradually occur from about 2 months after laying, up to 5 months when the plant seeds germinate and grow, there is a non-corrosion portion of 65%. It is estimated that sample A has sufficient strength for about half a year, that is, the period until plants such as trees grow. Further, in the sample B of the present invention, decomposition and corrosion due to microorganisms gradually occur from about 3 months after laying, and up to 5 months, 45
% Of the non-corrosion portion and up to 6 months of the non-corrosion portion of 65%, the sample B has sufficient strength for about one year, that is, the period until a plant such as a tree grows. Presumed to be. Therefore, it can be understood that the vegetation material produced by the samples A and B can maintain the required strength for a certain period until the plant grows.

Further, as is clear from Table 2 above, about 90% of the sample E used as a comparative example is corroded within 3 months after the installation, whereas the sample D of the present invention is not corroded at the time of installation. Although decomposition and corrosion by microorganisms gradually occur, about 80% of the non-corroded portion after 5 months has passed. Therefore, the vegetation material produced in Sample D above has a required strength over a certain period until the plant grows. It can be understood that

[0038]

As described above, since the vegetation material attached to the greening mesh of the present invention is formed by using the corrosive material subjected to the antibacterial treatment, this corrosive material is Although it eventually decomposes and decomposes by microorganisms and disappears, it suppresses decomposition and corrosion by microorganisms by applying an antibacterial treatment to the corrosive material, until the plant seeds germinate to some extent on the slope of the hillside. It is possible to maintain the required strength for a predetermined period of time and satisfactorily grow plant seeds with the vegetation material.

On the other hand, when the plant seeds are large and grown, the anticorrosive effect of the corrosive material due to the antibacterial treatment is gradually lost, and the corrosive material is decomposed and corroded by microorganisms to finally end up. Since it is homogenized with the soil, the vegetation material can contribute to environmental greening without causing semi-permanent remaining on slopes or the like and causing pollution problems.

When the above antibacterial treatment is performed, by using an antibacterial agent containing dimethylbenzylammonium chloride as an active ingredient, the effect of inhibiting corrosion of the corrosive material by microorganisms can be exhibited well.
It is possible to secure the mechanical strength for a certain period of time required for the plant seeds to germinate and grow in the vegetation material, and to grow the plant seeds well. Furthermore, the above antibacterial agent, when the plant seeds have grown to some extent, the corrosion inhibiting effect on the corrosive material is lost, so that the vegetation material can be decomposed and corroded by microorganisms to be homogenized with the soil. It can be said that it is the most suitable for environmental greening.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a greening net-like body provided with the vegetation material of the present invention.

FIG. 2 is a side cross-sectional view of the reticulated mesh body.

FIG. 3 is a process chart showing an example of a case where an antibacterial treatment is applied to a vegetation material.

[Explanation of symbols]

 2 ... Vegetation material (4 ... fertilizer bag, 5 ... mat).

Claims (2)

[Claims] 1. A vegetation material formed by using a corrosive material that has been subjected to an antibacterial treatment. 2. The vegetation material according to claim 1, wherein an antibacterial agent containing dimethylbenzylammonium chloride as an active ingredient is used for the antibacterial treatment.