JP2011244778A - Method for producing vegetation mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a vegetation mat sewable without bending or breaking a needle.SOLUTION: This method for producing the vegetation mat includes superposing a plastic sheet 4, a nonwoven fabric 6, and paper 2A on each other followed by sewing them using a needle. The stitches of a yarn 5 are formed along both the right and left ends of the plastic sheet 4. In more details, the method includes evenly arranging seeds 7, fertilizer 8, and water retaining or/and moisturizing agent 9 on the upper surface 2S in a condition of putting the paper 2A upward, covering the whole surface of the seeds 7, the fertilizer 8, and the water retaining or/and moisturizing agent 9 from above by a base part 2, and sticking the paper 2A and the base part 2 to each other. When sewing the paper 2A and the nonwoven fabric 6 on the base part 2 by the yarn 5, a needle 5A is free from touching the seeds 7, the fertilizer 8, and the water retaining or/and moisturizing agent 9, and the paper 2A and the nonwoven fabric 6 are continuously sewn on the base part 2 without bending or breaking the needle 5A.

Description

  The present invention relates to a method for producing a vegetation mat.

  Conventionally, a vegetation part layer having at least seeds of wild turf before germination is laminated on a base part made of paper as this kind, and a perforated plastic sheet is laminated on the upper surface, and further, a vegetation part layer and a plastic sheet There is known a method for producing a vegetation mat in which a second paper as a water retention or moisture retention member is interposed between the two and the whole. And in this manufacturing method, the whole was stitch | sutured with the thread | yarn.

JP 2007-56 A

  However, in the conventional method for manufacturing a vegetation mat, the whole is stitched together with a thread and integrated, so that the needle for threading the thread hits the seed of the vegetation layer at the time of manufacture, and the needle is bent or broken. There was a problem that.

  The problem to be solved is to provide a method for producing a vegetation mat that can be sewn without bending or breaking the needle in a method for producing a vegetation mat that is integrated using a thread.

  The invention according to claim 1 is a method for producing a vegetation mat in which a vegetation layer having at least seeds, a water retention or moisture retention sheet, and a perforated plastic sheet are sequentially stacked on a base portion made of paper. And the moisturizing sheet and the plastic sheet are sutured through a thread, and the vegetation layer is disposed on the upward surface with the surface of the stitched water retaining or moisturizing sheet opposite to the plastic sheet facing upward. The vegetation mat manufacturing method is characterized in that the base part is bonded to the water retention or moisture retention sheet so as to sandwich the vegetation part layer.

  According to the first aspect of the present invention, when the water retaining or moisturizing sheet is sewn to the base portion with the thread, the needle does not hit the seed, and therefore, the needle does not bend or break.

It is the perspective view which expanded a part which shows Example 1 of this invention. It is sectional drawing which expanded a part at the time of the installation. It is sectional drawing to which a part after the installation was expanded. It is sectional drawing of the 1st process. It is sectional drawing of the 2nd process. It is sectional drawing of the 3rd process.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  As shown in FIGS. 1 to 2, the vegetation mat 1 includes a paper base portion 2, a vegetation portion layer 3 placed on the base portion 2, and a perforated plastic sheet placed on the vegetation portion layer 3. 4 is laminated. The plastic sheet 4 is integrally provided with a second paper 2A as a water retaining or moisturizing member and a nonwoven fabric 6 made of cellulose via a thread 5. The overall size of the vegetation mat 1 is about 0.9 to 1 × width 1 to 10 m in length.

  The paper base portion 2 is, for example, paper having a transparent density, and a vegetation layer 3 on the base portion 2 is filled with seeds 7 of wild grass before germination, fertilizer 8 and further water retaining or And the vegetation layer 3 is laminated on the base 2. The plastic sheet 4 (including a film-like one) is made of, for example, polyethylene and has a thickness of about 20 to 40 μm, preferably 30 μm ± 4.8 μm, and about 5 to 30 mm, preferably about 16 to 20 mm. A hole 10 having a width (diameter) W of about 0.5 to 2 mm, preferably 1 to 1.3 mm, is formed so as to penetrate in the vertical direction. Further, the second paper 2A as the water retaining or moisturizing member has a density that is transparent. The base 2 and paper 2A made of paper are strong enough not to collapse during use, such as toilet paper for flush toilets, etc., have excellent water absorption properties, and loosen fibers when wet. In addition, it is low in cost because it does not contain substances harmful to bacteria in the ground and is a consumable item. The seeds 7 do not overlap one above the other, and are arranged so that at least an interval equal to or longer than the length of the seeds 7 (for example, 5 mm) can be maintained if they are arranged evenly.

  Next, a manufacturing method is demonstrated based on FIGS. As shown in FIG. 4, first, the plastic sheet 4, the nonwoven fabric 6, and the paper 2A are overlapped, and these are stitched using the needle 5A. The seam of the thread 5 is formed along the left and right edges of the plastic sheet 4. Note that the plastic sheet 4 and the paper 2A may be stitched first, and then the nonwoven fabric 6 may be stitched thereto, instead of the three sheets at the same time.

  Next, as shown in FIG. 5, the seed 7, the fertilizer 8, the water retaining agent, and the moisturizing agent 9 are uniformly arranged on the upper surface 2 </ b> S with the paper 2 </ b> A facing upward. Then, as shown in FIG. 6, the seed 7, the fertilizer 8, the water retaining agent and the moisturizing agent 9 are covered with the base portion 2 from above, and the paper 2 </ b> A and the base portion 2 are adhered. For example, in FIG. 6, an adhesive layer B as an adhesive layer is previously formed on the upper surface 2S of the paper 2A in FIG. The base part 2 on which the layer C is formed is attached, or the adhesive layer B is previously formed on the upper surface 2S of the paper 2A, and the base part 2 is left as it is with the seeds 7 and the like disposed thereon. Alternatively, the base portion 2 in which the adhesive layer C is previously formed on the lower surface may be pasted as it is in a state where the seed 7 or the like is disposed on the paper 2A. The integrated sheet-like vegetation mat 1 is wound and stored.

  Next, the operation of the above configuration will be described. As shown in FIG. 2, a vegetation mat 1 is laid on the ground 11 such as a slope and a flat surface, and a pile 12 is driven from above the vegetation mat 1 so as not to be blown off by wind. In the vegetation mat 1 thus installed, for example, germination occurs when the accumulated temperature reaches 300 to 400 ° C., and the roots are rooted on the ground 11 through the base portion 2, while the buds are the second paper 2 A and the nonwoven fabric 6. Passes through to the bottom surface of the plastic sheet 4. At the time of such germination, air is supplied to the seeds from the hole 10 through the slight gap between the second paper 2A and the nonwoven fabric 6 as shown by the arrow A. On the other hand, moisture is supplied by artificial watering or natural rain. This moisture supply is supplied in the same manner as the arrow A through the hole 10 through a slight gap between the second paper 2A and the nonwoven fabric 6. Even if the water is evaporated by solar heat, a part of the moisture is released to the atmosphere through a slight gap or hole 10 between the second paper 2A and the nonwoven fabric 6 in the direction opposite to the arrow A, but it is almost taken away from the surface. The moisture M is absorbed by the second paper 2A and stored inside the plastic sheet 4 to take measures against water shortage. Thus, most of the moisture M is accumulated inside the plastic sheet 4 and is not released to the atmosphere. As a result, moderate humidity and further temperature are maintained below the plastic sheet 4, that is, around the seed 7, contributing after germination, and seed growth can be performed well.

  After the wild turf has germinated and rooted in this manner, the base portion 2 and the second paper 2A are naturally melted and integrated with the ground 11 to return naturally as shown in FIG. Wild grass stalks and leaves are cultivated between the ground 11 side and the plastic sheet 4. Even in this case, the moisture M is stored as water droplets inside the plastic sheet 4 by the moisture taken away from the ground surface by sunlight during the daytime, thereby taking measures against water shortage. For example, the plastic sheet 4 is removed together with the piles 12 when the number of wild turf leaves becomes, for example, about 4 to 6, and the turf is shown to further grow.

  As mentioned above, in the said Example, the vegetation part layer 3 which provided the seed 7 at least, the paper 2A for water retention and moisturizing, the nonwoven fabric 6, and the porous plastic sheet 4 were piled up sequentially on the base part 2 which consists of paper. In the method for producing a vegetation mat, the paper 2A, the nonwoven fabric 6 and the plastic sheet 4 are stitched together with a thread 5, and the vegetation portion is formed on the upward surface of the stitched paper 2A opposite to the plastic sheet 4; The base part 2 is bonded to the paper 2A so as to sandwich the vegetation part layer 3 through the adhesive layers B and C, and the vegetation mat 1 is manufactured. 2A, when sewing the nonwoven fabric 6 with the thread 5, the needle 5A does not hit the seed 7, fertilizer 8, water retention or moisturizing agent 9, and therefore the needle 5A does not bend or break, Paper on base 2 A, it is possible to suture the nonwoven 6 continuously.

  Further, on the base portion 2 made of paper, at least a seed 7 of wild grass before germination is overlaid, and a porous plastic sheet 4 is overlaid on the upper surface via a nonwoven fabric 6 made of cellulose, so that the whole is integrated. Thus, the nonwoven fabric 6 made of cellulose is decomposed by bacteria and reduced to soil, so that it does not naturally decompose and leave a residue. Moreover, in the nonwoven fabric 6 which does not use the said paste and resin, the water absorption and water retention of about 15 times its own weight can be exhibited, and drying can be prevented. In addition, the use of the nonwoven fabric 6 can soften the strong sunlight during the day, while at the same time serving as a heat retaining agent at night. In addition, the non-woven fabric 6 has a relatively low strength. Therefore, even if the stems and leaves of the wild turf stretch and hit the non-woven fabric 6, the stems and leaves can penetrate the non-woven fabric 6. There is no loss of growth. Furthermore, since the nonwoven fabric 6 has a relatively large stretchability, it can be stretched and stretched during construction.

  As described above, the method for producing a vegetation mat according to the present invention can be applied to various uses. The sheet includes a film.

2 Base 2A Water retention and moisture retention paper 3 Vegetation layer 4 Plastic sheet 5 Yarn 6 Non-woven fabric 7 Seed

Claims (1)

  In the method for producing a vegetation mat in which a vegetation layer having at least seeds, a water retention or moisture retention sheet, and a porous plastic sheet are sequentially stacked on a base made of paper, the water retention or moisture retention sheet and the plastic The sheet is sutured through a thread, and the vegetation layer is disposed on the upward surface with the surface opposite to the plastic sheet of the stitched water and moisture retention sheet facing upward, and the vegetation layer is sandwiched between the sheets. Thus, the base part is adhered to the water retention and / or moisture retention sheet.

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