KR101818147B1 - Biodegradable-agriculture film for direct sowing - Google Patents

Abstract

The present invention relates to an agricultural direct sowing film made of a biodegradable film. The agricultural direct sowing film includes: germination holes which are formed on the film at predetermined intervals, are grouped with at least two holes in a group, and are in a semicircular, square, triangular, fan, or quadrangular shape; an attachment unit which is in the shape of a strip having a side shared with the germination holes, has the ends integrated with the film, and is in the shape of a Y or line; a biodegradable adhesive agent which is arranged on the lower surface of the attachment unit and is made of glycolic acid-lactic acid copolymers or tannin-polyethylene glycol copolymers; and seeds attached by means of the adhesive agent. The sprouts germinated in the seeds are grown through the germination holes formed in a predetermined space for easy sprout growth. The attachment unit is integrated to the film to prevent swaying the attachment unit. The seeds are attached to the attachment unit not to be completely exposed and protected from outside environment. The attachment unit is also not folded when folding or rolling the film. The germination holes are in various forms including the semicircular, square, triangular, fan, and quadrangular shapes to adjust the area of the germination holes even when the attachment unit maintains the same size, thereby enabling free seed selection.

Description

Biodegradable-agriculture film for direct sowing [

More particularly, the present invention relates to a biodegradable direct wave film for agricultural use, and more particularly, to a biodegradable film comprising a strip-shaped attachment portion and a seed attached to a lower surface of the attachment portion, The present invention relates to a biodegradable direct-current agricultural film for biodegradability which is not folded but is completely decomposed within the growing period of the crop and in which growth of germinated shoots is easy.

Direct seeding is a method of planting seeds directly in fields such as paddy field or field so that it does not require any additional facilities for germination of the seeds. However, it can reduce the labor force, but the seed germination rate is relatively low, have. In addition, after sowing, it was possible to damage the tide and it was difficult to regularize and even distance the planting distance.

In order to solve these problems, micro-perforations are made in the mulching film at regular intervals and then the mulching material with the seeds is directly spread on the cultivated land so as to make regular seeding and stable growth environment and to suppress the growth of weeds A single wave mulching film has been proposed.

However, the above-mentioned mulching films for direct wave use are not only troublesome to remove after using black or transparent plastic film as a base, but also have a problem that they can not be completely removed and are not decomposed in the soil. A used mulching film for direct wave was developed.

Prior art for a biodegradable direct wave film is disclosed in Korean Patent Laid-Open Publication No. 10-2016-0068556, which is a biodegradable sheet of paper material; A plurality of slits formed at predetermined intervals in the sheet, the slits being formed by cutting a sheet in a direction crossing the horizontal slit and the vertical slit in a predetermined length and crosswise; An adhesive agent attached to the lower surface of the sheet and formed at a position corresponding to the incision; And a seed fixed to the lower surface of the sheet by the adhesive agent, wherein the adhesive agent is composed of a mixture of glutinous rice powder, chitosan powder, kelp powder and wood vinegar.

However, the prior art mulching for crop cultivation tends to inhibit germination of the sheet of the incision by growing the germinated shoots by pushing the sheet, although the sheet is incised to the incision.

In addition, the above-mentioned mulching paper for crop cultivation has a problem that the sheet is made of a paper material so that the disintegration period of the sheet is long, and the sheet is not completely decomposed until the next cultivation.

Also, there is a problem that the vinegar of the adhesive agent reduces germination of seeds.

In addition, the crop cultivation mulching seeds also have a problem that the amount of the adhesive agent is large and the seeds are attached in an excessive amount because the adhesive agent is also formed under the cut space of the cut-out portion.

In addition, when the adhesive agent is constituted only on one side of the cut part, the seed may be torn off by the palpation of the cut part.

In addition, the crop cultivating mulching section is cut into a cross shape so that when the sheet is folded or rolled, the acute angle portion of the cut film is folded to increase the volume at the portion, and cracks are generated at the ends of the horizontal slit and the vertical slit.

Korean Patent Registration No. 10-1196873 A biodegradable mulching film for direct wave (Nov. 09, 2012) comprises a first pulp layer prepared by dispersing a first pulp dispersion in which pulp is dispersed in an aqueous adhesive solution; A biodegradable film layer laminated on the first pulp layer and having seeding holes drilled at seeding intervals; A plant seed which is seated on said seedling; And a second pulp layer laminated on a part or the whole of the biodegradable film layer and dispersed in an aqueous adhesive solution to disperse the biodegradable film layer on which the seeds are deposited and to dry the second pulp dispersion, .

The biodegradable mulching film for direct wave of the prior art has a problem that the seeds germinated from seeds are limited to grow through the pulp layer due to the density of the pulp layer.

In addition, the biodegradable mulching film for direct wave has a problem that the pulp layer is not biodegraded even after the crop is completely harvested.

In addition, the above-mentioned biodegradable mulching film for direct wave of the prior art has a pulp layer formed above and below a biodegradable film layer on which seeds are arranged, and a first pulp layer -> biodegradable resin film coating -> seed arrangement -> 2 pulp layer -> It is produced by pressing on the roller, resulting in a high production cost.

Disclosure of Invention Technical Problem [10] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a biodegradable film having an attaching portion formed of a straight or strip- The germinated gums in semicircular, square, triangular, fan-shaped or quadrilateral shape are formed by sharing one side and penetrating through the top and bottom. And to provide a biodegradable direct wave film for agricultural use which is easy to grow sprouts and does not suffer resistance by a film.

The present invention relates to a biodegradable direct wave film for biodegradable agricultural use comprising a germination layer which is formed in the film so as to have a predetermined shape and penetrate through the film vertically and formed into a set of two or more pieces; An attachment part having a strip shape which shares the sides with the germination hole and has an end integrated with the film; A biodegradable adhesive agent formed on the lower surface of the attachment portion; And seeds attached by the adhesive agent.

Further, in the present invention, the attaching portion is formed as a straight strip-like or band-shaped 'Y' -shape.

Further, in the present invention, the germination hole is composed of two or one set or three sets of the germs with the attachment part therebetween.

 Further, in the present invention, the germination hole is formed in a semicircle, a square, a triangle, a fan, or a quadrangle.

Further, the present invention is characterized in that the adhesive is composed of a glycolic acid-lactic acid copolymer or a tannin-polyethylene glycol copolymer.

The present invention has the effect that shoots germinated from seeds are grown through sprouting balls formed in a certain space, so that growth of shoots is easy and shoots are not resisted by the film.

In addition, the present invention has the effect that the attachment portion is formed integrally with the film, so that there is no palpitation of the attachment portion, so that the adhesion of the seed is good and the folding occurs when the film is folded or rolled.

In addition, the present invention has an effect that the adhesive agent is biodegradable and free from seed germination.

In addition, the present invention is effective in that a sticking portion is formed in a strip shape so that a small amount of sticking agent is required and an appropriate number of seeds are attached.

In addition, the present invention is characterized in that the adhesive agent and the seed are adhered to the attachment portion formed on the film, so that the seed is not completely exposed and is effectively blocked from the external environment so that the germination is smooth without covering the soil and the production process is simple It is effective.

In addition, the present invention has the effect that the germinated shoots in seeds can easily grow shoots into germination balls even before decomposition of the film.

In addition, the present invention is characterized in that the attachment portion is formed in a band-shaped 'Y' shape and the germination hole is formed in three directions around the attachment portion so that the seed is attached to the attachment portion in any direction, There is an effect that can grow.

In addition, the present invention is characterized in that the germination hole is formed in various shapes such as semicircular, square, triangular, fan-shaped, or quadrilateral, and the area of the germination hole is adjusted even if the area of the attachment portion is the same. It has a free effect.

In addition, the present invention has an effect that the adhesive agent is composed of a glycolic acid-lactic acid copolymer or a tannin-polyethylene glycol copolymer, the seeds are adhered until seeds are young and hydrolyzed when the buds are grown.

In addition, the present invention has the effect that the width of the attachment portion is 5 to 30 mm and the length is 30 to 100 mm, and the adaptability is good regardless of the seed size.

1 is a perspective view of the present invention;
Fig. 2 is an exploded perspective view of the main part of Fig. 1; Fig.
Figure 3 is a cross-sectional view of the use state of the present invention,
Fig. 4 is a cross-sectional view of an attachment portion and a sprocket of another embodiment of the present invention.

Hereinafter, a biodegradable direct wave film for agricultural use according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The biodegradable direct wave film for agricultural use 1 of the present invention has a large constitution of the film 10, the germination part 20, the adhesive agent 30 and the seed (OMEGA), and the germination part 20 has the attachment parts 21 and 21 -1) and a sprocket hole 22.

The film 10 is composed of a biodegradable resin made of a biodegradable material and is soft and well adsorbed on the ground. When the film 10 is installed on a soil, it is kept covered for about one month and biodegraded after 2 to 3 months.

The present invention relates to a biodegradable direct-current agricultural film (1) for direct seeding of various crops such as pepper, garlic, Chinese cabbage, lettuce, radish, onion, tobacco, ginger and strawberry in a rice field, a paddy field or a vinyl house. And has a continuous length, so it is cut into a suitable length suitable for use in fields such as rice field, field, greenhouse or vinyl house.

The longitudinal direction (longitudinal direction) of the biodegradable direct wave film for biodegradable agricultural use 1 has a length of several meters to several hundreds of meters and a width direction (transverse direction) of 1 m to several tens of meters depending on the type of crop, And the overall color is generally black, but depending on the application, it may be partially colored green or white.

The film 10 is made of biodegradable resin and the biodegradable resin is made of poly lactic acid (PLA), thermoplastic starch (TPS), polybutylene adipate-terephthalate (PBAT) co-terephthalate, polycaprolactone (PCL), aliphatic polyester, polybutylene succinate, polybutylene adipate-co-succinate (PBAS) ) And biodegradable synthetic resins derived from natural materials such as polybutylene adipate (PBA), natural biodegradable synthetic resins, and petrochemical biodegradable synthetic resins, and are biodegradable After the application in direct seeding, it is decomposed by itself and it is reduced after a certain period of time.

The biodegradable resin may include an organic or inorganic additive. The additive is preferably one or more selected from the group consisting of calcium carbonate or talc. When the additive is included in the biodegradable resin, the biodegradable resin is contained in the soil The decomposition period is controlled.

The germination part 20 is formed in a constant shape at regular intervals and has a structure in which a seed (?) Is attached and the buds germinated in the seed (?) Are allowed to grow. The attachment parts (21, 21-1) 22).

The germination hole 22 is formed by removing a part of the film 10 from the sprouts germinated by the seed germanium O to allow it to grow to the ground. Or may be formed at regular intervals in one row at the center in the longitudinal direction of the film 10.

The sprout can easily pass through the germination hole 22 even before the biodegradation of the film 10 so that the sprout germinated in the seed? So that the shoots can grow easily and are not subjected to resistance by the film 10, thereby promoting growth.

The germination holes 22 are formed in the film 10 so as to pass through the film 10 in a predetermined shape at regular intervals and two or more pieces are formed as a set and a part of the film 10 is punched and punched by a punch A portion of the film is perforated by a perforator.

The distance between the germination hole 22 and the germination hole 22 is determined according to the planting distance of the crop to be used. The planting distance is the distance between crops when sowing or transplanting crops.

When the germination holes 22 are formed in two rows, the distance between the first row and the second row is determined according to the crop distance (field distance). The distance between the branches means the distance between branches and the branches between the crops when sowing or transplanting. The distance and the distance between the germination holes 22 are set according to the crop to be woven.

The germination hole 22 is formed in a semicircular, square, triangular, fan-shaped or quadrangular shape, that is, the film surface is semicircular, square, triangular, fan-shaped or quadrilateral. (21).

The sprouting hole 22 is formed by a semicircular sprocket hole 22-1, a square sprocket hole 22-2, a triangular sprocket hole 22-3, a sector sprocket hole 22-4, a parallelogram sprocket hole 22 -5) or quadrangular sprouting holes 22-6.

Since the growth process is different according to the crop until the film 10 is biodegraded and the size of the aeration and the required amount of moisture are different according to the growth of the crop, 1, the spouting holes 22 are formed in a semi-circular shape, a square shape, a triangular shape, a fan shape, or a quadrilateral shape so that the area of the sprouting holes 22 is different.

The area of the germination hole 22 is adjusted and the area of the germination hole 22 is adjusted even if the area of the gaps 22 and 21 is the same. So that the adaptability is excellent.

The attachment portions 21 and 21-1 are formed in a band shape sharing a side with the germination hole 22 and have an end integral with the film 10. The attachment portions 21 and 21-1 are formed between the germination hole 22 and the germination hole 22 as a part of the film 10.

The attaching portions 21 and 21-1 are formed of a strip-shaped attaching portion 21 of a straight shape or a strap-shaped 'Y' attaching portion 21-1, (Ω) attached to the seed layer (3) is protected from the external environment while germination is smooth. Namely, the seed (?) Is adhered to the lower surface of the attachment portion (21, 21-1), so even if the bird tries to eat the seed (?), The attachment portion 21, 21-1) block the bird's mouth and the bird (Ω) can not eat the seed (Ω) is protected.

When the width of the attachment portions 21 and 21-1 is less than 5 mm, the sprout of a small seed (Ω) is formed into the sprocket hole 22 The strength of the attaching portions 21 and 21-1 is small and in the case of a large seed (OMEGA), the amount of water to be attached becomes insufficient. When the width of the attaching portions 21 and 21-1 is 30 mm or more In the case of a small seed (OMEGA) having a large strength of the attaching portions 21 and 21-1, the amount of the small seed (OMEGA) attached to the center in the transverse direction of the attaching portions 21 and 21-1 It becomes difficult for the buds to enter the germination hole 22. However, the width of the attaching portions 21 and 21-1 is not limited to 5 to 30 mm, but can be changed depending on the crop.

The lengths of the attachment portions 21 and 21-1 are 30 to 100 mm and the lengths of the attachment portions 21 and 21-1 are not limited thereto and can be changed depending on the crop. The length of the attachment portions 21 and 21-1 is such that when the attachment portions 21 and 21-1 are constituted by the attachment portion 21 having a straight shape, Refers to the length from one of the two bifurcated ends to the other end that is not split into two bifurcations when it is composed of the 'Y' attachment portion 21-1.

When the length of the attachment portions 21 and 21-1 is less than 30 mm, the area of the germination hole 22 is reduced to suppress the evaporation of water on the cultivated land, 21 and 21-1 have a length of 100 mm or more, the area of the germination hole 22 is large, so that it is not difficult to grow germinated seeds, but the length of the attachment portions 21 and 21-1 is required And it is difficult to maintain the moisture of the soil in the initial cultivation state. However, the length of the attaching portions 21 and 21-1 is not limited to 30 to 100 mm, but may be changed depending on the crop.

The seed (?) Is attached to the bottom of the attachment portions (21, 21-1), so that the seed (?) Is not completely exposed and is effectively blocked from the external environment so that germination is smooth without covering the soil.

The attachment portions 21 and 21-1 are integrally formed in the film 10 so that the wobbling of the attachment portions 21 and 21-1 does not occur so that the attachment of the seeds O is good and the attachment portions 21 21-1 do not fold when the film 10 is folded or rolled and the attachment portions 21, 21-1 are formed in a band shape so that a small amount of the adhesive agent 30 is consumed, Seeds are attached.

The germination hole 22 is composed of two or more portions with the attachment portions 21 and 21-1 interposed therebetween and the ends of the attachment portions 21 and 21-1 are integrally formed with the film 10. Since the attachment portions 21 and 21-1 are formed by the germicidal holes 22 in which the film 10 is perforated, the attachment portions 21 and 21-1 share sides with the germinal cavity 22, The ends of the portions 21 and 21-1 are integrally formed with the film 10.

In the case where the attachment portions 21 and 21-1 are formed in the shape of a straight strip, the germination holes 22-1, 22-2, and 22-3 are composed of two pairs of gobs 21 with the attachment portion 21 interposed therebetween And the gluing holes 22-4, 22-5, 22-6, and 22-7 are attached to the attachment portion 21-1 in the case where the attachment portions 21 and 21-1 are formed in the shape of a Y- There are three sets in the middle.

The sprouting holes 22-1, 22-2, and 22-3 are formed so as to face each other with a strip-shaped attachment portion 21 interposed therebetween, 5, 22-6, and 22-7 are formed in a three-stranded band-like shape in the attaching portion 21-1 of the band-shaped 'Y' -shaped shape and one germination hole is formed between the band-shaped band and the band-shaped band.

In the case where two germination holes 22 are formed as a pair, one side of each of the two germination holes 22-1, 22-2, and 22-3 is shared by any one side of the attachment portion 21. [ That is, one of the two sprouting holes 22-1, 22-2, and 22-3 is connected to one of the gluing holes 22-1, 22-2, and 22-3, And the remaining one of the germination holes 22-1, 22-2, and 22-3 shares one side of the attachment portion 21 with one side.

When three sprouting holes 22-4, 22-5, 22-6 and 22-7 are constituted by one set, three sprouting holes 22-4, 22-5, 22-6 and 22-7 are formed, Each one side is shared by any one side of the attaching portion 21-1. That is, one of the germination holes 22-4, 22-5, 22-6, and 22-7 is formed so that one side shares one side of the attachment portion 21-1 and the other germination hole 22 -4, 22-5, 22-6, and 22-7, the one side shares another side of the attachment portion 21-1 and the other one of the germination holes 22-4, 22-5, 22-6 , 22-7 share one remaining side of the attachment portion 21-1.

When the germination holes 22-1, 22-2, and 22-3 are spaced apart from each other at a predetermined distance, the germination holes 22-1, 22-2, and 22-3 and the germination holes 22-1 and 22-2 -2, and 22-3. The strips form a mounting portion 21, and the sprouting holes 22-4, 22-5, 22-6, and 22-7 form the same 22-5, 22-6, and 22-7, if one germination hole is spaced apart at regular intervals and is arranged in a triangular array so as to face each of the remaining two germination holes, And a band shape having a constant width is formed between the sprouting holes 22-4, 22-5, 22-6, and 22-7, and the band shape becomes the attachment portion 21-1.

The 'Y' -shaped attachment portion 21-1 is configured such that the germination holes 22-4, 22-5, 22-6, and 22-7 are formed in three directions around the attachment portion 21-1 So that the sprouts germinated in the seed (?) Can easily be sprouted into the sprouting holes 22-4, 22-5, 22-6 and 22-7 even when the seed (?) Is attached to the attachment portion 21-1 in any direction The bud can be grown.

The adhesive agent 30 is formed at a position corresponding to the attaching portions 21, 21-1. The adhesive agent 30 is adhered to the lower surface of the attachment portions 21 and 21-1 in the form of a small lump and is made of a natural adhesive capable of biodegradation and is free from germination of the seed (OMEGA).

The adhesive 30 can be used in an aqueous environment. That is, the adhesive 30 has moisture resistance that can maintain the adhesive force even in an environment where water exists or in a watery environment. In order to have moisture resistance, It should dissolve properly in the aqueous solution and should maintain stable adhesion even in the presence of fluid flow.

The adhesive agent 30 is formed by polymerizing a mixture of glycolic acid and lactic acid or by polymerizing a mixture of tannin-polyethylene glycol (PEG) 21-1, 21-1, 21-2, and 21-1 after the seeds are sprouted and buds in the seed (Ω) And the buds are grown, that is, hydrolyzed over time to disappear in the soil.

The glycolic acid-lactic acid copolymer (PGL) has a high rate of biodegradation when the content of glycolic acid is high and a rate of biodegradation is high when the content of lactic acid is high. The glycolic acid is extracted from sugarcane and has a high crystallinity, so that hydrolysis is slow due to the difficulty of water to enter the crystal, and lactic acid is the opposite, so that the ratio of glycolic acid and lactic acid is appropriately adjusted to achieve a suitable biodegradable rate.

The tannin is a phenolic compound and is mainly extracted from the core material or bark of wood. Tannin aqueous solution is a compound with a strong convergence and a short taste. It is a complex polymeric material composed of various polyphenols. It is colorless originally but easily oxidized by the action of polyphenol oxidizing enzyme and is brownish

The polyethylene glycol is a non-toxic high molecular material and has good solubility and is widely used in foods, cosmetics, and ceramics industries. Polyethylene glycol has different melting temperature and melting heat depending on the molecular weight, and it is selected according to the application field.

The adhesive containing tannin and polyethylene glycol has little toxicity, can be bonded without a thermosetting curing agent, and is water-insoluble because it is insoluble in water.

The adhesive agent (30) may contain a natural herbicide or fertilizer component capable of removing weeds, and the herbicide component or the fertilizer component is dissolved into the soil as time elapses, so that the adhesive agent (30) has a herbicidal effect and a fertilizer effect.

The seed (?) Is attached to the lower surface of the attaching portion (21, 21-1) by a biodegradable adhesive agent (30), and the seed (? Carrot, burdock, peas, and so on. The biodegradable direct-current agricultural film for agricultural use 1 may be wound in a roll state after the adhesive agent 30 is cured.

At the time of cultivation of the rice, the rice was harvested, and the biodegradable agricultural straight film (1) attached to the attachment parts (21, 21 - 1) (1) was allowed to adhere to the bottom of the rice paddy, and water was supplied to the rice paddy. After a certain period of time, the rice paddy After germination, grow in accordance with customary farming methods.

When the field crops are cultivated, a biodegradable direct-current agricultural film (1) attached to the attachment portions (21, 21-1) of the crop seed (Ω) is laid on the bottom of the field, and the biodegradable direct- If the seed (Ω) is germinated after a certain period of time in the water condition of the soil under the condition that the soil is placed at intervals, it is cultivated according to the customary farming method.

The terms or words used in the specification and claims of the present invention are not to be construed in a conventional or dictionary sense and the inventor can appropriately define the concept of the term in order to explain its invention in the best way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments described in the detailed description of the present invention and the configurations shown in the drawings are only the most preferred embodiments of the present invention, so that the scope of the present invention should not be limited to the described embodiments, It should be understood that variations may or may not be present in and on the basis of equivalents to the claims.

1: Biodegradable direct-current film for agricultural use 10: Film
20: germination part 21, 21-1: attachment part
22: germination ball 22-1: semicircular germination ball
22-2: Square sprouting balls 22-3, 22-7: Triangular sprouting balls
22-4: Sector germination ball 22-5: Parallelogram germination ball
22-6: Quadrilateral germination hole 30: Adhesive
Ω: seed

Claims (7)

A biodegradable direct wave film for agricultural use comprising a biodegradable film,
A germination hole formed in the film so as to penetrate vertically through a predetermined shape at regular intervals and formed into a set of two or more;
An attachment part composed of a strip that shares the sides of the germ line with the germs, the end part of which is integrated with the film, the width is 5 to 30 mm, and the length is 30 to 100 mm;
A biodegradable adhesive agent composed of a glycolic acid-lactic acid copolymer or a tannin-polyethylene glycol copolymer on the lower surface of the attachment portion;
And a seed attached by the adhesive agent.
The method according to claim 1,
Wherein the attaching portion is formed in a strip-like shape;
Wherein the germination holes are constituted by two pairs of the germination holes with the attachment portion interposed therebetween;
And one side of each of the two germination holes shares one side of the attachment portion.
The method according to claim 1,
Wherein the attachment portion is configured in a band-shaped " Y "shape;
Wherein the germination holes are constituted by three pairs of attachment portions sandwiching each other;
Wherein one side of each of the three germination holes is shared with one side of the attachment portion.
delete delete The method according to claim 2 or 3,
Wherein the germination hole is semi-circular, square, triangular, fan-shaped or quadrilateral.
delete

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