JPH08118534A - Bark mat and execution method using the same - Google Patents

Abstract

PURPOSE: To enhance the workability and safety of maintenance work while facilitating the control of a greenbelt by utilizing a mat near to nature in the tree planting area of the median strip of a superhighway. CONSTITUTION: A mat structure A is obtained by forming a bark bonded laminar material 1 from bark 2 and an adhesive 3 and integrally laminating the same to a resin impregnated nonwoven fabric material 4. The mat structure A is arranged on the afforestation part of a median strip in such a state the bark bonded laminar material is turned to the upper side to be fastened and fixed by an appropriate fastening means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is provided in places such as highways such as median slopes, soundproof walls, greenery blocks, and other green spaces that are difficult to manage, and makes it possible to grow and protect trees and the like in the greened areas. And a construction method using the mat.

[0002]

2. Description of the Related Art Generally, in highways and the like, a separating zone for partitioning an oncoming lane is provided in a central portion, and a greening portion in which trees and flowers are planted is formed in this separating zone. In addition, trees are planted on the roads and side roads, or on the areas separating sidewalks to enhance the aesthetic landscape.
There is a greening area where flowers are planted.

[0003] By the way, conventionally, in order to protect, grow and manage such trees and flowers in these greened parts, hemp-proof mat-like multi-ply materials, veneer boards, recycled paper and non-woven materials are used for grass-proof coating. , Bark compost (fermented bark) is spread and spread.

[0004]

However, the above-mentioned bark compost spraying is not only time-consuming to spread, but it is often the case that the bark compost is scattered by the wind and pollutes the surrounding environment. Since maintenance work becomes dangerous as the number of workers increases, there is a problem in that it is difficult to gather workers with the adjustment of the number of days of work. On the other hand, the covering with the non-woven herb cloth is too artificial to be far from nature, is inferior in water absorbency and water retention, is not preferable from the viewpoint of giving importance to landscape, and is also limited in spraying pesticides such as herbicides.

The present invention copes with the above-mentioned situation, and in particular, by finding a matt as a form of utilizing bark, it is close to nature, and the safety and workability of maintenance work are improved to facilitate the management of green areas. The purpose is.

[0006]

That is, the first feature of the present invention which meets the above object is to form a bark-bonding layered body with a bark and an adhesive, which is laminated and integrated with a resin-impregnated non-woven fabric material to form a mat structure. In addition to forming a body, the structure has air permeability and water permeability.

A second feature of the present invention is a method of applying the above-mentioned bark mat to a greening portion. The bark-bonding layered body side of the above-mentioned bark mat is placed on the greening portion such as a median strip as the surface side, If necessary, the fixing means may be used for fixing and fixing.

Here, the above-mentioned bark is incidentally generated from a papermaking chip factory or a sawmill, and is usually left outdoors for fermentation to produce organic fertilizer as bark compost or greening work. It is used in the spraying method. In the present invention, only such bark crushed is used, and the bark of coniferous trees such as cedar and cypress has an insect repellent effect and is suitable.

The resin-impregnated non-woven material used in combination has a darker color and does not absorb light to pass therethrough, so that it is preferable from the standpoint of suppressing weeds and preventing weeds.

The bark mat of the present invention is required to have air permeability and water permeability, and the bark-bonding layered body is formed with air-permeable and water-permeable voids by spreading an adhesive, while the resin-impregnated nonwoven fabric material is formed. Is appropriately formed by known ventilation, water-permeable nonwoven fabric forming means, or by needle punching or other means so as to hold interfiber voids.

Further, when the bark-bonded layered body and the resin-impregnated non-woven material are bonded, hot melt sheet, partial bonding, or adhesive spraying can be applied.

[0012]

According to the above bark mat of the present invention, since natural bark is used as the surface material, it is in good harmony with the surrounding natural environment,
Since it is possible to bring out a state close to nature, since the bark of the mat is fixed, there is no risk of scattering by the wind, etc.In addition, when arranging it, it is only necessary to arrange the shape by cutting etc. and place it on the greened part. The work is very easy, the work time is shortened, and the risk is significantly reduced.

Further, since it has air permeability and water permeability, there is no fear that trees and the like will die, and if bark of coniferous trees such as cedar and cypress is used, an insect repellent effect is also obtained.

If the color of the nonwoven fabric material at the bottom is black, the absorption of sunlight can be blocked and the emergence of weeds from the bottom can be suppressed.

[0015]

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

FIG. 1 is a partial cross-sectional structure showing an example of a bark mat according to the present invention. In the figure, 1 is a bark binding layered body, which is formed by binding and solidifying bark 2 with an adhesive 3. The bark mat A of the present invention is formed by laminating it with the resin-impregnated nonwoven fabric material 4 and integrating them.

As described above, the bark of coniferous trees such as cedar and cypress is effective as the bark 2 as described above.
An acrylic emulsion resin having excellent weather resistance is generally used as the bark-bonding adhesive 3.

Known non-woven fabrics such as needle non-woven fabrics, wet non-woven fabrics and spun-bonded non-woven fabrics can be used as the non-woven fabrics constituting the resin-impregnated non-woven fabric material 4. Among them, polyester spun-bonded non-woven fabrics are most advantageous and hydrophilic agents, The resin-impregnated non-woven fabric 4 is formed by impregnating a known acrylic emulsion resin containing a crosslinking agent and the like.

When the bark-bonded layered body 1 and the resin-impregnated nonwoven fabric material 4 are laminated and integrated, an adhesive such as a high-viscosity-high-tack acrylic emulsion resin is used, and this adhesive is usually used. In the manufacturing process, it is applied to the upper surface of the resin-impregnated non-woven fabric material 4 in advance by means such as spraying, spraying or coating. However, an adhesive such as a hot melt sheet may be used. Alternatively, the bark-bonding adhesive 3 may be heat-sealed by heating, or the non-woven fabric material may contain welding fibers, and the welding may be performed.

By the way, since the bark mat A in which the bark-bonded layered body 1 and the resin-impregnated nonwoven fabric material 4 are laminated and integrated is provided with air permeability and water permeability, when applying a resin or an adhesive, a means such as spraying or spraying is used. To give the bark-bonded layered body 1 breathability and water permeability, while the nonwoven fabric material 4 originally has
If there are inter-fiber voids, they can be left as they are,
When air permeability and water permeability are insufficient due to resin or the like, it may be supplemented by needling or the like.

Although the resin-impregnated non-woven fabric has various colors, it is particularly effective to make it black, as mentioned above, from the viewpoint of preventing weeds.

Next, one example of the product specifications of the bark mat of the present invention will be shown. Product dimensions Standard width 50 cm x length 1 m, apparent thickness about 10 mm 50 pieces per package 1 packaging material

[0023]

[Table 1]

(A) Bark of cedar and cypress wood Dry weight Moisture content 20% -40% Average 30% Drop rate 30% -50% Average 40% The yield of the material varies greatly, but the yield is 1.7. It was calculated. (B) Acrylic emulsion resin; solid content% 50%
(Excellent weather resistance) (c) High viscosity-high tackiness Acrylic emulsion resin (d) Polyester spunbonded nonwoven fabric (e) Acrylic emulsion resin + hydrophilic agent + crosslinking agent

As shown in the above product specifications, the bark mat of the present invention can be manufactured as a long product. In this case, the bark mat is cut into products according to the required dimensions and used.

FIG. 2 shows, as an example, a state in which the bark mat as described above is used, and the bark mat is placed in the greening portion of the median strip and applied. For example, in the case of the median strip of a highway, the median strip C is the
A greening portion 13 surrounded by curbs 12 and 12 'on both ends sandwiched by 1'is provided with a planting tree 14 and the present invention is applied to the surface of the root soil 15 of the present invention. The said bark mat A concerned is laid and constructed. When the bark mat A may slide down, such as in the case of an inclined surface, for example, the bar 16 may be pierced on the bark mat A to fix its movement. However, even in this case, it is possible to easily replace and move the stopper metal 16 by removing it, and it is completed within a short time.

The above description is for the median strips of expressways and the like, but the construction method for sidewalk strips, planting pits, and planted parts such as factories is also the same and is included in the present invention.

[0028]

INDUSTRIAL APPLICABILITY As described above, the present invention is a bark mat in which a bark-bonding layered body composed of bark and an adhesive is laminated and integrated with a non-woven fabric material. It has an aesthetic landscape that is in good harmony with the natural environment, which is effective for maintaining and maintaining the environment. It also has appropriate breathability and water permeability, so that rainwater and air can permeate trees, flowers and other parts of the greening area. , There is no fear of tree death, which is advantageous in terms of raising and protecting. Moreover, unlike the conventional bark compost spraying, the bark mat of the present invention has a mat shape, so there is no concern that the bark compost will be scattered, and the handling during maintenance work is easy and the workability is good, and the working time is long. It has a remarkable effect of shortening and reducing the risk of passing a vehicle.

Further, when using bark such as cedar or cypress as the bark, there is an insect repellent effect, and if the resin-impregnated non-woven fabric is black, the growth of weeds on the lower surface is suppressed and the use of herbicides is reduced. There is also.

Since the bark mat of the present invention has the above-mentioned effects, it is extremely advantageous in construction work and can be safely constructed even on an expressway with a large amount of automobile traffic.

[Brief description of drawings]

FIG. 1 is a schematic partial sectional view showing an example of a bark mat according to the present invention.

FIG. 2 is an explanatory cross-sectional view of a main part showing an example of a state in which a bark mat according to the present invention is applied to a median strip.

[Explanation of symbols]

 1 Bark-bonding layered body 2 Bark 3 Bark-bonding adhesive 4 Resin impregnated non-woven material 5 Interlayer adhesive 11, 11 'Road surface 12 Curbstone 14 Planted tree 15 Soil 16 Bar stop A A Bark mat C Median strip

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Ichiyoshi Onishi 255 Oka, Ritto-cho, Kurita-gun, Shiga Prefecture Kureha Tech Co., Ltd. Yamato Indoor

Claims (6)

[Claims] 1. A bark mat, which is a mat structure in which a bark-bonded layered body composed of bark and an adhesive is laminated and integrated with a resin-impregnated non-woven fabric material, and has air permeability and water permeability. 2. The bark mat according to claim 1, wherein the bark is a bark using cedar wood and cypress wood. 3. The bark mat according to claim 1 or 2, wherein the resin-impregnated non-woven fabric material has a black color. 4. A bark mat having a bark-bonding layered body composed of bark and an adhesive and a resin-impregnated non-woven fabric, which is breathable and water-permeable, is used for greening in a median strip of a highway or the like. A method for constructing a bark mat, characterized in that the bark-bonded layered body is arranged on the surface as a surface side. 5. The method for constructing a bark mat according to claim 4, wherein the bark is a bark using cedar wood and cypress wood. 6. The method for constructing a bark mat according to claim 4, wherein the resin-impregnated non-woven fabric material has a black color.