JPH0419801B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a seeding sheet for pine-like seedlings for a rice transplanter suitable for sowing seed rice, particularly for so-called spot sowing, both vertically and horizontally. The present invention also relates to a seeding sheet suitable for germinating and raising seedlings of one to several grains of rice at appropriate intervals.

[Conventional technology]

In order to increase the survival of seedlings after rice transplantation, so-called medium-grown seedlings are required in cold regions.Therefore, it is sufficient to produce pine-like seedlings using a rice transplanter by sowing seed rice in stripes (row sowing) or spots with good lighting and ventilation. Must be grown seedlings.

The first example of technology that has been proposed in the past to meet this demand is to create a discontinuous area where adhesive is not applied between the top paper and the bottom paper, as shown in Japanese Utility Model Application Publication No. 47-32921. There is a method in which the paper is formed into a paper, the seed rice is stored there, and the two papers are joined together.
A second example is a seeding paper, as disclosed in Japanese Utility Model Application Laid-open No. 54-44711, in which adhesive surfaces are discontinuously formed at arbitrary intervals and sizes on paper. As a third example, in the seedbed for scattering or spot sowing shown in Figure 4 of Japanese Utility Model Publication No. 59-92646, adhesive-applied parts are formed at arbitrary intervals vertically and horizontally, similar to the above-mentioned sowing paper. There is. As a fourth example, JP-A-49-
A dot seeding sheet as shown in Figure 1C of Publication No. 30105 has also been proposed, but this is also similar to the second and third examples.

In addition, the applicant of the present invention previously filed a patent application filed in 1983.
No. 125769 proposed a technique for constructing a seeding sheet for spot seeding by discontinuously opening small holes in a row seeding sheet in a predetermined pattern that are larger than the width of the adhesive layer.

In addition to the above-mentioned sheets for spot sowing, proposals have also been made such as specializing the seeding machine itself for spot sowing in rows, or interposing a perforated screen with a pattern for spot sowing between the sowing machine and the sowing surface.

[Problem to be solved by the invention]

Among the above-mentioned conventional techniques, the first to fourth examples require a special sheet for spot sowing, so the sheet manufacturing process is also specialized and there is a risk that the cost will be higher than sheets for scattering or row sowing.

In addition, according to the technology of the prior invention proposed earlier by the present applicant, it is possible to basically use a seeding sheet manufactured for row sowing after drilling holes, and to use it for spot sowing. Although it is effective to reduce costs by increasing the number of sheet lots, since the drilling process for use in spot seeding is required separately from that for row seeding, the cost is reduced due to the increase in the number of man-hours for drilling holes. In addition, consumers cannot freely use seeding sheets for row sowing and spot sowing.
In the end, consumers have to purchase and use pre-processed seeding sheets in the required amount for both row and spot seeding, and if there is too much or too little of each sheet, there will be waste and loss of sheets. Or there was an inconvenience that required an additional purchase.

The specialization of sowing machines and screens also has the disadvantage of not only requiring specially constructed sowing machines and screens, but also complicating the work and reducing efficiency.

The purpose of the present invention is to provide a seeding material that has a simple configuration with only slight improvements made to the sheet for row seeding, which is currently in widespread use, and allows consumers to freely select and use it for either row seeding or spot seeding. The purpose is to provide seats.

[Means to solve the problem]

The technical means of the present invention taken to achieve the above object consists of a base sheet 1 on which a plurality of striped adhesive layers 2 are applied in a certain direction at appropriate intervals.
and a release sheet 3 covering the adhesive layer 2 are temporarily attached to each other, the seeding sheet having the configurations described in [A] to [B] below.

[B] The release sheet 3 includes this release sheet 3.
a series of sheet portions 5a that are peeled off with the peeling action of the release sheet 3 so that some sheet portions remain partially on the adhesive layer 2 when the base sheet 1 is peeled off; A cutout line 4 for dividing the release sheet 3 is cut into a sheet portion 5b that is separated from the sheet portion 5a and remains on the adhesive layer 2 side.

[B] The cutout lines 4 are provided at appropriate intervals in the longitudinal direction of the adhesive layer 2 so that the sheet portions 5b remaining on the adhesive layer 2 side intermittently cover the rows of the adhesive layer 2. It is being

[Effect]

In the seeding sheet of the present invention, the striped adhesive layer applied to the base sheet by a simple normal operation of peeling off the release sheet from the base sheet can be applied to the part of the release sheet within the cutout line. is discontinuously coated, so that portions of the non-adhesive surface appear at appropriate intervals along the length of the strip. Therefore, in other words, adhesive surfaces of appropriate sizes are distributed in a discontinuous manner both vertically and horizontally.

If you sprinkle rice seeds on the seeding sheet in this state, or conversely press the sheet against the surface of the rice seed layer, 1 to
A group of several grains of rice seeds are discontinuously distributed and adhered to the sheet in both length and width.

Furthermore, when using this seeding sheet for row sowing, the seeding sheet for row sowing can be easily constructed by simply peeling off and removing the sheet portion remaining on the base sheet side.

〔Effect of the invention〕

Therefore, the seeding sheet of the present invention can be made into a release sheet for spot sowing by simply carving cutout lines in the desired arrangement on a release sheet for row sowing. Provided at low cost with little complexity.

Further, when using the seedling, the release sheet can be simply peeled off in the same way as in the case of ordinary row seeding, and there is no risk of complicating the operation.

Furthermore, the spot seeding sheet of the present invention can be used for row seeding without any special processing by simply removing the sheet portion that remains attached to the base sheet adhesive layer after removing the release sheet. can. Therefore, when a consumer runs out of sheets for row sowing, the sheet for spot sowing can be used as is for row sowing, making it easy to use the sheet without wasting it.

〔Example〕

As shown in FIGS. 1 to 4, on the surface of the base sheet 1, a large number of parallel adhesive layers 2 are applied at appropriate intervals in the longitudinal direction in the form of stripes several mm wide. A release sheet 3 is provided at a position corresponding to the adhesive layer 2 so as to cover the surface of the base sheet 1.

The release sheet 3 has a layer that is attached to the release sheet 3 so that when the release sheet 3 is peeled off from the base sheet 1, a part of the sheet remains partially on the adhesive layer 2 as the release sheet 3 is peeled off. A cutout line 4 for dividing the release sheet 3 is cut into a series of sheet portions 5a to be peeled off and a sheet portion 5b separated from the sheet portion 5a and remaining on the adhesive layer 2 side. This cutout line 4 is cut out discontinuously at appropriate intervals in the longitudinal direction so that the sheet portion 5b remaining on the adhesive layer 2 side intermittently covers the rows of the adhesive layer 2 in a closed loop shape (illustrated diagram). The adhesive layer 2 is provided in a rectangular shape at appropriate intervals in the longitudinal direction of the adhesive layer 2.

The adhesive layer 2 is, for example, what is generally called a pressure-sensitive adhesive, and the base sheet 1 and release sheet 3 are temporarily attached to each other in such a manner that they can be separated by applying a certain force or more. In this example, the sheet portions 5b surrounded by the cutout lines 4 are arranged in a lattice pattern with approximately the same pitch both vertically and horizontally, and both the base and release sheets 1 and 3 are made of paper-based materials, and the former is The paper is easily torn off by the application of external force when the seedlings have been raised, that is, by the force of the planting claws on the rice transplanter, and the latter is thin paper coated with a release agent.

Next, how to use it will be explained. First, as shown in Figure 1, when the release sheet 3 is pulled away from the base sheet 1 in the direction of arrow H with a constant force, a cutout line 4 is formed as shown in the lower right part of the figure.
The sheet portions 5b, 5b surrounded by the sheet portions 5b remain on the surface of the adhesive layer 2 against the above-mentioned constant force. Next, if the seed rice is sprinkled on the base sheet 1 in this state, the seed M will adhere only to the exposed surface of the adhesive layer, so when the seed rice on the sheet portion 5b is removed, the result will be as shown in the upper row of Fig. 5. become. After that, the base sheet 1 with seeds is placed on the seedbed soil T of the seedling raising box N shown in the lower part of the figure, and finally, as shown in FIG. 6, an appropriate amount of covering soil F is applied and watered.

[Another Example] Although not shown in the drawings, if the base sheet 1 is made of open-cell foamed resin, the foamed resin contains air in the micro cavities and has air permeability, which facilitates the production of rice seeds. It is favorable for roots and root growth.

If the base sheet 1 is previously impregnated with a fertilizer solution, a fungicide solution, etc. at an appropriate concentration, it is possible to achieve good seedling-raising results.

The striped adhesive layer 2 may be formed in horizontal stripes.

[Brief explanation of drawings]

The drawings show an embodiment of the seeding sheet according to the present invention, and FIG. 1 is a perspective view showing a state in which the release sheet is being peeled off, and FIG. 2 is a sectional view taken along line A-A in FIG. 1.
Figure 3 is a sectional view taken along line B-B in Figure 1, and Figure 4 is a cross-sectional view of Figure 1.
5 is a perspective view showing a usage method, and FIG. 6 is a sectional view. DESCRIPTION OF SYMBOLS 1... Base sheet, 2... Adhesive layer, 3... Peeling sheet, 4... Cutting line, 5a... Sheet part to be peeled off, 5b... Remaining sheet part, M...
Seed rice.

Claims (1)

[Scope of Claims] 1. A base sheet 1 on which a plurality of streak-like adhesive layers 2 are applied in a certain direction at appropriate intervals, and a release sheet 3 covering the adhesive layer 2 are temporarily attached to each other. A seeding sheet having a structure described in [A] to [B] below. [B] The release sheet 3 includes this release sheet 3.
a series of sheet portions 5a that are peeled off with the peeling action of the release sheet 3 so that some sheet portions remain partially on the adhesive layer 2 when the base sheet 1 is peeled off; A cutout line 4 for dividing the release sheet 3 is cut into a sheet portion 5b that is separated from the sheet portion 5a and remains on the adhesive layer 2 side. [B] The cutout lines 4 are provided at appropriate intervals in the longitudinal direction of the adhesive layer 2 so that the sheet portions 5b remaining on the adhesive layer 2 side intermittently cover the rows of the adhesive layer 2. It is being 2. The seeding sheet according to claim 1, wherein the base sheet 1 and the release sheet 3 are both made of a paper-based material. 3. The seeding sheet according to claim 1, wherein the base sheet 1 is made of foamed synthetic resin. 4 Cut out the cutouts so that when the release sheet 3 is peeled off from the base sheet 1, the exposed portions of the adhesive layer 2 that are not covered by the remaining sheet portion 5b are equally spaced in both the vertical and horizontal directions. Claims 1 to 3 in which the lines 4 are arranged
The seeding sheet described in any of the above.