JPH0691764B2 - Tension grass body and method of manufacturing the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tension grass body and a method for producing the same.

[Conventional technology]

When growing lawns such as greens, tee grounds and fairways in golf courses and creating lawn surfaces such as park green areas or river beds, conventionally, direct sowing and spraying of lawn seeds by hand and pasting of lawn grass such as Koryo turf have been performed. I was going.

[Problems to be Solved by the Invention]

However, methods such as direct sowing and spraying of lawn seeds by hand are liable to cause unevenness in sowing and spraying, and thus unevenness in the germination state of the lawn and the difficulty of forming a uniform lawn surface. In addition, the raw grass staking method does not have the above-mentioned drawbacks, but has a drawback that the construction unit price increases.

On the other hand, one side of the dispersible nonwoven fabric in which the entanglement of fibers repeats coarse and dense at appropriate intervals in the vertical and horizontal directions, by spraying a water-soluble paste material against this while dropping lawn seeds, onto the nonwoven fabric. It is considered that the lawn seeds are evenly attached to form a stretched grass body, which is attached to the ground surface.

However, in the above-mentioned conventional turf grass, the fibers of the non-woven fabric are entangled in the vertical and horizontal directions, so that there is a problem in dispersibility. In addition, the size of the foam of the water-soluble paste material is not uniform, so the part where a large amount of the water-soluble paste material adheres is not dried sufficiently, or the dispersible non-woven fabric absorbs water before the drying is completed. It has been difficult to obtain a desired stretched grass body, such as being dispersed. Furthermore, in the case of a golf course tension grass,
It is important to attach a small amount of lawn seeds uniformly, but with the method of spraying a water-soluble paste material against the lawn seeds while dropping them, it is difficult to control the seeding amount and it tends to result in striped seeding. There was a problem that it was difficult to maintain sex.

The present invention has been made in consideration of the above matters, and one of the objects thereof is to provide an excellent stretched grass body that germinates uniformly and becomes a good-looking lawn, and another object. Is to provide a method for easily and surely producing such a stretched grass body.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the tension turf according to the present invention is a water-soluble sizing agent for lawn seeds in a water-soluble nonwoven fabric having excellent dispersibility in which long filaments having a small diameter are arranged mainly in one direction and entangled and bound to each other. It is characterized in that it was pasted with foam having a diameter of 7 mm or less.

In addition, water-soluble sizing agent with a diameter of 7 mm or less is sprayed on a water-soluble non-woven fabric with excellent dispersibility, which is obtained by arranging thin long fibers mainly in one direction and intertwined with each other and binding them. Sowing seeds on the non-woven fabric,
Then, the diameter of the water-soluble sizing agent from the top of the sown lawn seeds.
It is characterized by spraying foam of 7 mm or less.

Further, it is preferable that 80% or more of the foam is adjusted so as to be included in the range of the diameter of 2 to 5 mm.

[Action]

According to the above characteristic structure, since the fibers of the water-soluble nonwoven fabric are mainly aligned in one direction and bound by being intertwined with each other, the dispersibility in water is excellent, and the nonwoven fabric is composed of long fibers. , Even if dispersed by water
It is possible to prevent the lawn seeds from moving, and it is possible to effectively prevent the lawn seeds from being unevenly distributed on the nonwoven fabric. And, since the water-soluble sizing agent consists of foam with a diameter of 7 mm or less, it dries quickly, the non-woven fabric is not dispersed by the water-soluble sizing agent, and moreover, the diameter of the water-soluble sizing agent is 7 mm or less before and after sowing the lawn seeds. Since the foam is sprayed, the lawn seed is surely adhered and sown on the non-woven fabric. Therefore, a uniform lawn surface is formed when the lawn seed is grown.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention, FIG. 1 shows an example of a stretched grass body 1 according to the present invention, 2 is a nonwoven fabric, 3 is seeded on one surface thereof, and a water-soluble paste material (Outside the figure, described later)
It is a lawn seed attached by.

The stretched grass body 1 is manufactured using an apparatus as shown in FIG. In FIG. 2, 4 is a nonwoven fabric roll, 5 is a first sizing material spraying machine, 6 is a sowing machine, 7 is a second sizing material spraying machine, 8 is a dryer, 9 is a winding roll, and 10 and 11 are It is a conveyor.

The non-woven fabric used for the non-woven fabric roll 4 is preferably a water-soluble non-woven fabric excellent in dispersibility, in which long fibers having a small diameter are arranged mainly in one direction and entangled with each other and bound,
For example, a fiber having a denier of 1.5 mm and a length of 51 mm is formed by using a binder such as polyvinyl alcohol (PVA) having a low degree of polymerization so that the material ratio is 80% and the binder is 20%.
%, And those bound so that the basis weight is about 23 g / m ² are used. The size of the non-woven fabric roll 4 is, for example, width 1050 mm × length 1050 m. Further, as the above-mentioned fiber, a fiber having a thickness of 9.6 microns and a length of 40 to 50 mm can be used.

The first sizing material spraying machine 5 and the second sizing material spraying machine 7 have the same structure and have a conventionally known structure, for example, a sizing material storage tank 12 and a nozzle 13, and the nonwoven fabric roll 4 The water-soluble paste material 14 is supplied to the non-woven fabric 2 unwound from and the non-woven fabric 2 seeded with the lawn seeds 3. The water-soluble paste material 14 has a foam diameter of 7 m.
It is preferable to adjust it so that it is 80 m or less.
It is more preferable that the content is adjusted so that the content of at least% falls within the range of 2-5 mm in diameter. As such a water-soluble paste material 14, for example, a mixture of water, PVA, and a vinyl acetate emulsion as a foam film strength enhancer in appropriate amounts can be used.

The seeding machine 6 is interposed between the first sizing agent spraying machine 5 and the second sizing agent spraying machine 7, and a conventionally known structure can be used. The amount of lawn seeds 3 seeded by the seeding machine 6 is, for example, 8 g / m of pen cloth vent in the case of the green grass 1 for a golf course.
^The seeds were either sowed individually to give 2 or 20g of grass lawn seeds 3 were added to the pen cloth vents, if necessary, with extenders such as berumlite (expanded vermiculite) to facilitate uniform sowing. In the case of a soded grass body 1 sown so as to have a size of m ^2, and for the construction of a grass surface such as a golf course deground or fairway or a park green space or riverbed, for example, tall fescue, perennial ryegrass,
Lawn seeds 3 appropriately mixed with short-crown seeds suitable for sports turf such as Kentucky bluegrass are sown at 55 g / m ² . A water retention material may be appropriately mixed in any of the lawn seeds 3 described above.

The dryer 8 is provided with a hot air source 15 using propane gas, for example, and is configured to uniformly dry the entire width of the nonwoven fabric 2.

Next, the procedure of manufacturing the stretched grass body 1 for a golf course green, for example, with the apparatus having the above-described structure will be described. The non-woven fabric roll 4 is rotated in a predetermined direction and the first paste material spraying machine 5 is rotated.
The non-woven fabric 2 in which the water-soluble paste material 14 is delivered from the non-woven fabric roll 4 by the first paste material spraying machine 5
The spray pressure is about 6 kg / cm ² and is evenly sprayed. The water-soluble paste material 14 has a diameter of foam adjusted to 7 mm or less, and 80% or more of the foam has a diameter within a range of 2 to 5 mm. It is small and therefore the nonwoven fabric 2 does not disperse.

The nonwoven fabric 2 sprayed with the water-soluble sizing material 14 is conveyed by the conveyor 10 to the seeding machine 6, where the grass seeds 3 consisting of pen cloth vents increased in amount as needed are supplied to the nonwoven fabric 2. At this time, it is preferable to sow lawn seeds 3 uniformly so as to have a weight of 8 g / m ² .

The nonwoven fabric 2 on which the lawn seeds 3 have been sown is sent by the conveyor 10 to the second paste material spraying machine 7, where the water-soluble paste material 14 is sprayed again. The conditions for this spraying are the same as those for the first paste material spraying machine 5.

The nonwoven fabric 2 on which the water-soluble paste material 14 has been sprayed by the second sizing material spraying machine 7 is sent to the dryer 8 by the conveyors 10 and 11 and is subjected to predetermined drying, so that the lawn seed 3 becomes the nonwoven fabric 2
It is uniformly adhered and sown on one surface to form a desired turf grass body, and this turf grass body is wound up by a winding roll 9 to become a turf grass body roll, which is cut into an appropriate length to obtain a green on a golf course. The stretched grass body 1 for use is obtained.

In order to construct the stretched grass body 1 manufactured as described above on site, the stretched grass body 1 is laid on the entire ground surface 16 to be greened, and then covered with about 0.5 cm of soil. Then, after the above construction, sprinkling water is applied to disperse the fibers of the non-woven fabric 2, and coarse portions of the fibers are cut by water droplets to become coarser and spaces are formed between the fibers. On the other hand, this nonwoven fabric 2
The lawn seeds 3 sown in 1) immediately germinate when exposed to water, and the shoots easily germinate from the space of the fibers.
In this case, since the non-woven fabric 2 is composed of long fibers, the lawn seeds 3 can be prevented from moving even when dispersed by water, and the lawn seeds 3 on the non-woven fabric 2 can be prevented from being biased. The sprouts keep a uniform state on the nonwoven fabric 2. After that, a uniform lawn surface can be formed by adding water and fertilizer appropriately.

〔The invention's effect〕

Since the present invention is configured as described above, it has excellent dispersibility in water, and can effectively prevent movement of lawn seeds even when dispersed in water, can prevent bias of lawn seeds, and looks good. A good lawn surface can be easily formed.
Moreover, it can be easily manufactured.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a cross-sectional view showing an example of a stretch lawn body according to the present invention, FIG. 2 is a view showing a step of producing the stretch lawn body, and FIG. [Fig. 3] is a diagram showing a construction situation of a stretch lawn body. 1 ... tension grass body, 2 ... non-woven fabric, 3 ... lawn seed, 6 ... sowing machine,
14 ... Water-soluble paste material.

Claims (4)

[Claims] 1. A lawn seed is adhered to a water-soluble non-woven fabric having excellent dispersibility, which is obtained by arranging thin long fibers mainly in one direction and intertwined with each other and binding them with a foam of a water-soluble sizing agent having a diameter of 7 mm or less. Zhang turf body characterized by that. 2. The stretch lawn body according to claim 1, wherein 80% or more of the foam is adjusted to be contained within a diameter range of 2 to 5 mm. 3. A water-soluble sizing agent having a diameter of 7 mm or less is sprayed on a water-soluble non-woven fabric having excellent dispersibility in which long filaments having a small diameter are arranged mainly in one direction and entangled and bound with each other.
Then, sowing lawn seeds on the non-woven fabric by a sowing machine, then, a method for producing a stretched grass body, characterized in that a diameter of 7mm or less of the water-soluble sizing agent is sprayed from the seeded lawn seeds. . 4. The method for producing a stretch lawn body according to claim 3, wherein 80% or more of the foam is adjusted to fall within a diameter range of 2 to 5 mm.