JPS61280203A - Seeding sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a seeding sheet for mat-shaped 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 cold regions, so-called medium-grown seedlings are required in order to increase the survival of seedlings after rice transplantation. Therefore, the mat-shaped seedlings of rice transplanters can be grown sufficiently by sowing the seed rice in stripes (row sowing) or dots with good lighting and ventilation. The seedlings must be grown in the same manner as before.

In order to meet this demand, the first example of the technology that has been proposed in the past is as shown in Japanese Utility Model Application Publication No. 47-32921, in which no adhesive is applied between the top paper and the bottom paper. There is a method in which the paper is formed continuously, the seed rice is stored there, and the two sheets are joined together. As a second example,
There is a seeding paper, as disclosed in Japanese Patent No. 44711, in which adhesive surfaces of arbitrary spacing and size are discontinuously formed on paper. As a third example, in the seedbed for scattering or spot sowing shown in Figure 4 of Japanese Utility Model Application 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-49-3010
A dot seeding sheet as shown in Figure 1 (c) of Publication No. 5 has also been proposed, but this is also different from the second and third examples.

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 that the invention seeks to solve]

Since the above-mentioned conventional technology requires a special sheet for spot sowing, 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. Specialization of sowing machines and screens also has the disadvantage of complicating the same problem and reducing efficiency.

[Means for solving problems]

Therefore, the present invention aims to provide a sheet for spot seeding with a simple structure that is only slightly improved from the sheet for row seeding that is currently in widespread use.

That is, according to the present invention, a base sheet is provided with a plurality of stripes of adhesive layer coated in a certain direction at appropriate intervals, and a base sheet is coated with a plurality of stripes of adhesive layer in a certain direction at appropriate intervals, and in a region corresponding to the adhesive layer and in the longitudinal direction of the layer. A release sheet with closed loop cutout lines cut out at appropriate intervals along the line is temporarily attached to each other, and each part of the release sheet surrounded by the cutout line peels the sheet from the base sheet. A seeding sheet is provided that is configured to remain on the adhesive layer.

[For production]

In the seeding sheet of the present invention, the striped adhesive layer applied to the base sheet is removed by the release sheet portion within the cutout line by a simple and normal operation of peeling off the release sheet from the base sheet. coated continuously,
Therefore, 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.

When rice seeds are sprinkled on the seeding sheet in this state, or conversely, when the sheet is pressed against the surface of the rice seed layer, groups of one to several grains of rice seeds are distributed discontinuously on the sheet both vertically and horizontally and are adhered and held. .

〔Effect of the invention〕

Therefore, the release sheet for spot sowing can be made by simply carving the closed-loop cutout lines in the desired arrangement on a release sheet for row sowing. It can be provided at low cost without complicating the millet process.

In addition, in use, 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.

In some cases, the spot sowing sheet of the present invention can be used for row sowing. This is because, if the small pieces of release paper remaining dotted on the base sheet adhesive layer are removed after the release sheet is removed, the entire length of the adhesive layer is exposed.

〔Example〕

As shown in Figures 1 to 4, the surface of the base sheet (1) has a large number of parallel adhesive layers (2) arranged at appropriate intervals in the longitudinal direction.
・ is applied in a stripe shape with a width of several n.

The release sheet (3) has discontinuously closed loop-shaped (rectangular in the illustration) cutout lines (4) at appropriate intervals in the vertical direction at positions corresponding to the adhesive layer (2),
(4) is engraved.

The adhesive layer (2) is, for example, what is generally called a pressure-sensitive adhesive, and the base sheet (1) and release sheet (3) can be separated by applying a certain amount of force. Temporarily attached. And the part surrounded by the cutout line (4) (
In this example, 5) are arranged in a grid with almost the same pitch both vertically and horizontally, and both the base and release sheets (1) and (3)
Both are made of Gi-based materials, and the former is made of paper that can be easily torn off by the application of external force when seedlings have been raised, that is, the force of the planting claws on the rice transplanter, and the latter is made of thin paper that can be released from the mold. It is coated with an 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 the arrow (H) with a constant force, the area surrounded by the cutout line (4) ( 5), (5) remains 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 rice (M) will adhere only to the exposed surface of the adhesive layer, so when the seed rice on the part (5) is removed, the It will look like the upper part of Figure 5. After this, the seedling box (N
) The base sheet with seeds (1) is placed on top of the seedbed soil (T), and finally, as shown in Figure 6, an appropriate amount of covering soil (F) is applied and watered.

[Another example]

■ Although not shown, if the base sheet (1) is made of open-celled foamed resin, the foamed resin contains air in the minute voids and has air permeability, which facilitates rooting of the seed rice. It is favorable for the growth of

■ If the base sheet (1) is impregnated with a fertilizer solution, fungicide solution, etc. at an appropriate concentration in advance, it is possible to achieve good seedling growth results.

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

[Brief explanation of drawings]

The drawings show examples of the seeding sheet according to the present invention, and FIG. 1 is a perspective view showing the state in which the release sheet is being peeled off, and FIG.
The figure is a sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view taken along line A-A in Figure 1.
-B sectional view, Figure 4 is the CC line sectional view of Figure 1,
The figure is a perspective view showing the method of use, and FIG. 6 is a sectional view. (1)... Base sheet, (2)... Adhesive layer, (3)... Release sheet, (4)...
... Cutting line, (5) ... Part surrounded by the cutting line, (M) ... Seed rice.

Claims (1)

[Claims] [1] A base sheet (1) on which a plurality of striped adhesive layers (2) are applied in a certain direction at appropriate intervals, and corresponds to the adhesive layer (2). Cutting lines (4) in the form of closed loops at appropriate intervals along the longitudinal direction of the layer (2).
are temporarily attached to each other, and each part (5) of the release sheet (3) surrounded by the cutout line (4) has the sheet (2) A seeding sheet configured to remain on an adhesive layer (2) when peeled off from a base sheet (1). [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 a foamed synthetic resin. [4] When the release sheet (3) is peeled off from the base sheet (1), the portions of the adhesive layer (2) that are not covered by the portions (5) and are exposed are both vertically and horizontally. The seeding sheet according to any one of claims [1] to [3], wherein the cutout lines (4) are arranged at equal intervals.