JPH0244487B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to, for example, a vegetation paper used for greening slopes and a method for producing the same.

(Conventional technology) Conventionally, when vegetation is grown on slopes with little fertilizer, it absorbs and stores large amounts of fertilizer and moisture, has a buffering function that suppresses salt concentration disturbances, and improves the physicochemical properties of soil. Organic soil conditioners (hereinafter referred to as soil conditioners) made of plant fibers such as peat moss or bark that have the property of promoting the decomposition of surrounding organic matter are poured onto slopes and the like.

In this case, the soil improvement material is often spread manually or by spraying water as a medium, but labor costs are high and it is difficult to uniformly spread the material quantitatively. In particular, when the latter method is applied to a slope, the soil conditioner inevitably flows down the slope with water, resulting in uneven distribution.

In order to solve this problem, the soil improvement material is molded and dried with adhesive to form a plate-shaped vegetation substrate, or it is sandwiched between two water-degradable sheets to form a vegetation substrate, and this vegetation paper is used as a vegetation substrate. It is possible to install it on the slope.

(Problems to be Solved by the Invention) However, the conventionally used soil improvement materials are plant fibers themselves, which are always in a wet state with a moisture content of 40 to 80% in their natural state, and must be dried once. This has the property of causing the plant fibers to shrink and lose their water absorbency.

Therefore, if it dries out like the former vegetative substrate, some of the original functions of the soil conditioner will be lost.

In addition, if the latter type of vegetation substrate is used, the soil conditioner is in a moist state, making it bulky and expensive to store and transport. It has the disadvantage that it cannot be manufactured or stocked together with fertilizers that are susceptible to deterioration.

The above-mentioned drawbacks of the conventional methods are based on the property that once the soil conditioner is dried, it does not have sufficient water absorbency.

SUMMARY OF THE INVENTION Therefore, the present invention provides a vegetation paper that imparts sufficient water absorbency to a soil improvement material even when dried, and that can be easily formed into a sheet and laid on slopes, etc., and a method for producing the same.

(Means for Solving the Problems) As a result of various experiments, the present inventors have found that if an organic soil improvement material made of plant fibers such as peat moss and bark is beaten and fibrillated, It has been found that even once dried, it retains sufficient water absorbency.

Therefore, the vegetation paper according to the present invention is produced by adding an organic soil improvement material containing at least one of peat moss and bark, which has been beaten and fibrillated, into pulp to form a dry, water-decomposable sheet. belongs to.

In addition, the method for producing vegetation paper is to mix the organic soil improving material with pulp, and in the pulp beating process, also beat the soil improving material to form fibrils, and then form this into a sheet.

(Function) As described above, according to the vegetation paper and the method for manufacturing the same according to the present invention, the soil improvement material containing peat moss and bark is beaten and fibrillated, so even if it is once dried and formed into a sheet, it is not sufficient. It has water absorption properties and fully demonstrates its original function as a soil conditioner. In addition, since the vegetation paper can be obtained at the same time as paper making, production is extremely easy and inexpensive.

(Example) Next, the present invention will be explained according to an example.

FIG. 1 shows a method for producing vegetation paper according to the present invention, in which pulp 1 is mixed with an organic soil improvement material 2 made of vegetable fibers containing at least one of peat moss and bark, and this mixture 3 is 4, the raw material is fibrillated. The paper stock solution 5 is then adjusted to the conditions necessary for papermaking, such as by adding internal additives such as a paper strength enhancer such as polyvinyl alcohol.

This stock liquid 5 is supplied to a conventionally known paper making machine 6 to make paper. Then, depending on the case, they are combined and then dehydrated and dried in a drying step 7 to obtain vegetation paper A, which is a thin and flexible sheet-like product. In addition, in the above example, the soil improvement material 2 was beaten together with the pulp 1, but it is also possible to use one that has been beaten in advance, but if it is done as in the example, the soil improvement material 2 is not beaten separately, so it is cheaper. be.

Further, in the above description, water-soluble polyvinyl alcohol was used as the paper strength agent, but the present invention is not limited to this. However, since the vegetation paper A needs to be decomposed by rainwater, etc., the amount added may be adjusted to the extent that it has water decomposition properties.

Furthermore, a fibrous or powdery thermoplastic resin is added to the pulp 1 to form a vegetation paper A, and this vegetation paper A is heat-set into a grid shape for example, and then integrated, and furthermore, this integrated hot press is applied. A bowl-shaped seedling growing pot or a plurality of consecutive seedling growing pots can be used.

In addition, for example, granular soil improvement materials such as vermiculite may be added as additives, and
In order to increase the tensile strength of the vegetation paper A, long fibers of synthetic resin may be mixed into the pulp 1.

(Effects of the Invention) As is clear from the above explanation, the vegetation paper according to the present invention is made from pulp and organic soil improvement material, and is in the form of a soft sheet like general paper. Not only does it adapt well to the undulations of surfaces, but it can also be easily installed by anyone. Once applied, the soil improvement material will be evenly distributed,
In addition, the entire paper is loosened by rain, etc., and each fiber is fixed to the soil particles on the ground, which can solve the factor that inhibits plant growth.

Moreover, although the organic soil conditioner of the vegetation paper according to the present invention is in a dry state, it is fibrillated and has a large surface area, so it has sufficient water absorption even if it is once dried.

Therefore, the volume of vegetation paper is smaller and lighter than conventional paper, making it easier to transport.
It also has the advantage of being inexpensive. In addition, it can be stored in the same place as seed fertilizers and other materials that dislike moisture, making storage easy, and it is also possible to integrate seed fertilizers into a separate vegetation paper.

[Brief explanation of drawings]

FIG. 1 is a process diagram showing the method for manufacturing the vegetation paper of the present invention, and FIG. 2 is an enlarged sectional view of the vegetation paper. A... Vegetation paper, 1... Pulp, 2... Organic soil improvement material, 4... Beating process, 7... Drying process.

Claims (1)

[Claims] 1. A pulp that has been beaten and fibrillated.
A water-degradable vegetation paper made by pouring in an organic soil improvement material containing at least one of peat moss and bark and drying it. 2. A method for producing vegetation paper, which comprises mixing pulp with an organic soil improvement material containing at least one of peat moss and bark, beating the mixture, and then forming the paper into a sheet.