JP3427005B2 - Vegetation substrate - 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 suitable for use in a greening method such as a slope.

[0002]

2. Description of the Related Art In recent years, for example, in the field of slope greening,
A greening technology that uses corrugated cardboard, old newspaper, and other paper sheets that are used paper as a vegetation substrate, supports plant seeds if necessary, and stretches this vegetation substrate on slopes, such as bare ground. Has become the focus of attention.

According to this greening technique, the vegetation substrate effectively prevents the erosion of the surface soil on the slope surface, and the plant seeds carried on the vegetation substrate preferably achieve the greening of the slope surface. And, since the vegetation substrate is a paper sheet and this biodegrades over time,
It is preferable because the vegetation substrate does not remain as a residue on the slope.

In particular, the amount of waste in containers and packaging has increased due to the expansion of production and consumption accompanying the recent economic development, the diversification of lifestyles, and the change of consumer consciousness, and the awareness of recycling from the environmental viewpoint has increased. With regard to this, nowadays, when separate collection and recycling are implemented, it is important to use corrugated cardboard as a vegetation substrate for the above-mentioned greening construction method, which is also significant in terms of resource conservation and environmental conservation. Is.

By the way, in using a paper sheet as a vegetation substrate, it is necessary to form an opening in the paper sheet to improve the germination of plant seeds.
A punching machine was used to form numerous punched holes in a paper sheet.

[0006]

However, when punching is performed, a large amount of punched punched paper pieces are generated as dust, which not only wastes resources such as corrugated cardboard and old newspaper, but also post-processes the paper pieces. There are also problems in terms of
From the budding surface of the plant seeds, it is preferable to form many punch holes, but in addition to the above problems becoming more prominent, the tensile strength in the plane direction of the paper sheet decreases. But there was a problem.

The present invention has been made in view of such circumstances, and an object of the present invention is to remove a paper piece which causes a problem in post-treatment without causing a significant decrease in tensile strength. The occurrence was completely eliminated, and cardboard and paper were stacked and crimped.
It is to provide an vegetation substrate formed with openings for passing shoots seeds in paper sheet made from the sheet.

[0008]

[Means for Solving the Problems] The technical means taken by the present invention to achieve the above object are as follows. That is, a cut sheet forming zone and a cut-free zone are alternately set in a sheet width direction on a paper sheet made of a sheet of corrugated cardboard or paper and pressure-bonded to each other. It is characterized in that the cuts are formed at intervals in the longitudinal direction of the sheet, and about half of the sheet strips between the cuts are bulged to one side surface of the sheet (claim 1).

According to the above-mentioned constitution, the opening for plant seed germination is formed in the bulging portion of the sheet strip portion without ejecting any punched paper piece which causes a problem in the post-treatment. In addition to the fact that there is no waste of paper, there is a continuous uncut zone in the longitudinal direction of the sheet in the paper sheet, and further, since the sheet strip portion is continuous in the width direction of the sheet, There is no significant reduction in tensile strength.

When forming the above-mentioned openings for germination, when the paper sheet is, for example, cardboard, it is possible to bulge only about half of the sheet strips to one side of the sheet so as to crush the sheet strips. Although possible, it is preferable to bulge about half of the remaining sheet ridges to the other side surface of the paper sheet in order to prevent the sheet ridges from being crushed as much as possible (claim 2).

It is also possible to select two or three sheet strips and swell them.
To form a vegetation substrate with a uniform thickness
It is preferable to swell every other piece.

From the viewpoint of tensile strength, it is preferable that the cut-free zones are continuous over the entire length in the longitudinal direction of the sheet, and the cut-free zones are provided at a plurality of positions in the width direction of the paper sheet (claim 3). ), The cut forming zones and the cut-free zones may be provided alternately in the longitudinal direction of the sheet, that is, the cut-forming zones and the cut-free zones may be provided over the entire surface of the sheet, for example, in a checkered pattern. Of.

From the viewpoint of early greening, preferably, one or more of plant seeds, fertilizers and soil conditioners are supported on one side of a paper sheet with a sizing agent (claim 4) or plant seeds. ,
One or more types of fertilizers and soil improvers are carried on one side of a sheet material with a sizing agent, and this sheet material is adhered to one side of a paper sheet (claim 5).

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a construction situation of protection and greening of a slope N by a vegetation base 1 of a paper sheet, and the vegetation base 1 for slope protection used in this construction is
As shown in FIG. 2, for example, a corrugated cardboard that has been separated and collected, a cardboard that is recycled from used paper, and other sheets that are pressed together by stacking, for example, old newspapers (hereinafter referred to as paper sheets).
It is configured as follows using.

That is, the cut forming zone S1 and the cut-free zone S2 are set alternately in the width direction of the paper sheet 2, and in the cut forming zone S1, the cuts a in the sheet width direction are spaced in the longitudinal direction of the sheet 2. Are formed substantially parallel to each other, and every other one of the sheet strips 2a between the cuts a and a is bulged to one side and the other side of the sheet, and the swelling portion is provided with an opening for plant seed germination. A is formed.

According to the vegetation substrate 1 having the above-mentioned structure, the opening A for plant seed germination is formed in the paper sheet 2 without ejecting a punched paper piece, so that there is no waste of resources.
In addition, the paper sheet 2 has the uncut zone S2 that is continuous in the longitudinal direction of the sheet 2, and the sheet strip portion 2a is further continuous in the width direction of the sheet. The strength will be kept moderate.

It should be noted that every other sheet strip portion 2a is replaced by the sheet 2.
Swelling on one side surface and the other side surface is suitable for forming the vegetation substrate 1 to have a uniform thickness.
It is also possible to select a two-piece or three-piece piece of a and bulge it to one side surface and the other side surface of the sheet 2, and, if cardboard is selected as the paper sheet 2, It is possible to bulge only about half of the sheet ridges 2a to one side surface of the sheet so that the ridges 2a are crushed. The other is to swell the remaining sheet strip portion 2a to the other side surface of the paper sheet 2.

In order to protect the slope N by the vegetation substrate 1 having the above-mentioned structure and to construct a greenery, if the local soil buried seeds and flying seeds are used to plan the greening of the slope N that is adapted to the local ecosystem, This vegetation substrate 1 may be stretched as it is on a bare ground portion or a slope of the slope N. If early greening of the slope N is intended, plant seeds of a native species are preferably sown on the slope N. Alternatively, after spraying the slope N with a vegetation base material in which at least one of organic compost, chemical fertilizer, plant fiber, water retention agent, soil improver, etc. is mixed with plant seeds, the slope N is covered. Then, the vegetation substrate 1 may be stretched, and the vegetation substrate 1 is appropriately fixed using, for example, an anchor nail or the like.

Alternatively, as shown in FIG. 3, a vegetation base material 3 in which at least one of organic compost, chemical fertilizer, plant fiber, water retention agent, soil conditioner, etc. and plant seed b is mixed, for example, polyvinyl alcohol, etc. It is held directly on the back side of the paper sheet 2 via the water-soluble gluing agent of No. 2, or as shown in FIG. 4, a cotton-like mat or a paper or water-soluble mat which enables germination and growth of the plant seed b. Although the sheet material 4 is made to hold the above-mentioned vegetation base material 3 with a water-soluble gluing agent and this sheet material 4 is attached to the back surface side of the paper sheet 2, or otherwise, although not shown, A so-called tension grass body in which the vegetation base material 3 is sandwiched between the sheet materials 4 and 4 is attached to the back surface side of the paper sheet 2, and the vegetation substrate 1 made of these is stretched on the slope N, and if necessary. Polyethylene, biodegradable plastic, etc.
The vegetation substrate 1 may be covered with a net 5 made of jute or coconut fiber material or a wire net.

At this time, when the vegetation substrate 1 is stretched on the slope N so that the sheet strip 2a is oriented in the contour line direction of the slope N, the budding opening A due to the swelling of the sheet strip 2a vertically extends. Since it exists so as to be opened at, it is suitable for the germination surface of the plant seed b, and has an advantage that flying seeds can be easily caught and fixed.

Further, since the vegetation substrate 1 is easily bent, it is easy to adapt it to the unevenness of the slope N, and moreover, the vegetation substrate 1
In addition to softening the impact of raindrops, the sheet strip 2a
The swelling part of the soil has both the function of reducing the velocity of the flowing water and the function of preventing the flow of soil, so that the erosion of the slope surface soil can be effectively prevented, and the vegetation substrate 1 can Since the sheet 2 is made of a material and biodegrades over time, the vegetation substrate 1 does not remain as a residue on the slope N, and a good natural environment can be maintained.

In the cut forming zone S1, the cut a in the sheet width direction is formed to have a substantially constant length. However, as shown in FIG. 5, the length between the cuts a having a substantially constant length is a. A short cut a1 is partially formed to form a connecting portion 2b between the adjacent sheet strips 2a and 2a, and the sheet strip 2 between the cuts a1 and a1 is formed.
It is also possible to bulge a1 to the side opposite to the bulging side of the sheet strip portion 2a to form a bud-budding opening A having a large mesh and a bud-growing opening A1 having a small mesh.

At this time, the above-mentioned connecting portion 2b may be formed over three or four adjacent sheet strips 2a, and such connecting portion 2b may be formed by every two or three sheets. It may be formed between the ridges 2a. According to the vegetation substrate 1 having such a configuration, the connecting portion 2b has an effect of further increasing the rigidity of the vegetation substrate 1.

In each of the above-mentioned embodiments, the vegetation substrate 1 is appropriately stretched on the slope N by using, for example, an anchor nail or the like, and then the vegetation substrate 1 is covered with a net 5 or a wire net as required. However, the net 5 and the wire net are omitted, and as shown in FIG. 6, for example, the vegetation base 1 to which the water-soluble sheet material 4 holding the vegetation base material 3 is adhered, and other vegetation having various configurations described above. It is also possible to adopt a greening form in which only the base 1 is stretched on the slope N.

[0025]

As described above, according to the vegetation substrate according to the present invention, a corrugated cardboard or a sheet obtained by pressure-bonding sheets of paper is stacked without pressing out any punched-out paper piece which causes a problem in post-treatment.
Since the opening for plant seed germination is formed in the paper sheet made of, no waste of resources occurs, and furthermore, the paper sheet has continuous uncut zones in the longitudinal direction of the sheet. Further, since the sheet strips are continuous in the width direction of the sheet, the tensile strength of the sheet is not significantly reduced.

Further, since the opening for germination of the plant seeds can be oriented in the vertical direction, it is suitable for the germination surface of the plant seeds, and at the same time, it has an advantage that the flying seeds can be easily captured and fixed. It is possible to easily adapt the substrate to the unevenness of the slope, and the vegetation substrate softens the impact of raindrops.
Moreover, since the sheet strip portion has both the function of reducing the velocity of the flowing water and the function of preventing the flow of soil, it is suitable in terms of preventing erosion of the slope surface soil.

In addition, since the vegetation substrate is a paper sheet and is biodegradable, the vegetation substrate does not remain as a residue on the slope, and therefore, the natural environment can be kept good. According to the present invention, there is provided a vegetation substrate suitable for use, which has an excellent function in terms of environmental protection in addition to a function that does not remain as a residue.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a construction situation of protection of a slope and vegetation by a vegetation substrate of a paper sheet.

FIG. 2 is a perspective view of a vegetation substrate in which an opening for germinating plant seeds is formed by bulging a sheet portion between cuts.

3 is a sectional view taken along line XX of FIG.

FIG. 4 is a partial cross-sectional view of a vegetation substrate according to another embodiment in which a sheet material holding a vegetation base material is attached to the back side of a paper sheet.

FIG. 5 is a partial perspective view of a vegetation substrate according to another embodiment.

FIG. 6 is a partial cross-sectional view showing a greening aspect of a slope with only a vegetation base material.

[Explanation of symbols]

2 ... Paper sheet, 2a ... Sheet strip, a, a1 ... Notches, A, A1 ... Seedling opening, S1 ... Notch forming zone,
S2 ... Uncut zone.

Claims (5)

(57) [Claims] 1. A sheet in which corrugated paper or paper is stacked and pressure-bonded
In the paper sheet, the cut forming zone and the cut-free zone are set alternately in the width direction of the paper sheet, and in the cut forming zone, cuts in the sheet width direction are spaced in the longitudinal direction of the paper sheet. A vegetation substrate, which is formed by bulging approximately half of the sheet strips between the cuts to one side of the sheet and forming openings for plant seed germination in the bulges. 2. The vegetation substrate according to claim 1, wherein about half of the remaining sheet strips are bulged to the other side of the paper sheet. 3. The vegetation substrate according to claim 1, wherein the uncut zones are continuous in the longitudinal direction of the sheet and are provided at a plurality of positions in the width direction of the paper sheet. 4. The vegetation substrate according to claim 1, wherein one or more of plant seeds, fertilizers and soil conditioners are supported on one side of a paper sheet with a sizing agent. 5. A sheet material comprising one or more of plant seeds, fertilizers, and soil conditioner supported on one side of a sheet material by a sizing agent, and the sheet material is adhered to one side of a paper sheet. 4. The vegetation substrate according to any one of 3 to 3.