KR102371584B1 - A paper-mulching - Google Patents

Abstract

Paper mulching paper according to an embodiment of the present invention is a first paper sheet; a frame member disposed on the first paper sheet; and a second paper sheet disposed on the frame member, wherein the frame member has a net structure formed by intersecting biodegradable natural yarns.

Description

Paper mulching paper {A PAPER-MULCHING}

The present invention relates to paper mulching paper, and more specifically, to a multifunctional natural material paper mulching paper that can be completely decomposed in soil to cover farmland where crops are grown to suppress the growth of weeds, and to solve the problem of waste plastic collection. .

Mulching refers to a crop cultivation method that covers the surface of the site where crops are growing to prevent soil drying, erosion, and rapid changes in the ground temperature, and suppresses weeds and weeds by suppressing the use of herbicides.

In the case of crop cultivation by mulching, it is a cultivation technology that meets the needs of consumers who prefer safe agricultural products that do not depend on chemical agents as part of an eco-friendly cultivation technology that can effectively suppress the growth of weeds without using herbicides.

The conventional mulching paper is composed of vinyl materials such as polyethylene or polyvinyl chloride, and in this case, a lot of labor is required because the collection of the used mulching paper must be carried out. There are problems that can make things worse.

Furthermore, since the mulching paper made of the above-mentioned vinyl material does not decompose naturally, there is a problem in that it does not conform to the recently emerging eco-friendly policy.

On the other hand, the following prior art literature discloses only the technical content of manufacturing recycled paper by mulching using waste paper and by-products of agricultural products, but does not disclose the technical gist of the present invention.

Korean Patent Publication No. 2003-0059065

The present invention has been devised to solve the above problems, and an object of the present invention is to suppress the growth of weeds by covering farmland where crops are grown, and at the same time to solve problems that may occur when collecting waste vinyl after installing mulching paper. To provide a multifunctional paper mulching paper that can be completely biodegradable in the soil.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

As a means for solving the above-mentioned problems, the paper mulching paper according to an embodiment of the present invention is a first paper sheet; a frame member disposed on the first paper sheet; and a second paper sheet disposed on the frame member, wherein the frame member has a net structure formed by intersecting biodegradable natural yarns.

At least one of the first paper sheet and the second paper sheet is preferably formed by mixing pulp, water and charcoal powder.

The frame member preferably includes charcoal powder.

It is preferable to further include a reflective film attached to the upper surface of the second paper sheet.

It is preferable that a cut-out part commonly penetrated through the first paper sheet, the second paper sheet and the frame member is formed.

Further comprising a functional coating layer coated on at least one of the first paper sheet and the second paper sheet, wherein the functional coating layer is a coating material in which a dimethomorph wettable powder and a urea fertilizer having a nitrogen content of 40% or more are mixed with polyvinyl alcohol. It is preferable to be coated on the first paper sheet and the second paper sheet as a binder.

A plurality of through-holes are formed in the frame member at preset intervals, and a biodegradation promoting module for injection of the biodegradation accelerator is accommodated in the plurality of through holes, and the biodegradation promoting module is in the form of a capsule to accommodate the biodegradation accelerator therein. The biodegradable capsule is formed, and the biodegradable capsule is accommodated in the hollow formed therein, and the outer peripheral surface includes an expandable member disposed in contact with the inner wall of the through hole, and the thermal expansion coefficient of the expandable member is determined by the frame member and the biodegradable capsule. It is preferable that it is larger than the thermal expansion coefficient.

A plurality of through-holes are formed in the frame member at preset intervals, and a biodegradation promoting module for injection of the biodegradation accelerator is accommodated in the plurality of through holes, and the biodegradation promoting module is in the form of a capsule to accommodate the biodegradation accelerator therein. It is preferable to include a biodegradable capsule formed therein, an expandable member arranged to accommodate the biodegradable capsule in a hollow formed therein, and an outer circumferential surface to be in contact with the inner wall of the through hole, wherein the expandable member slowly expands over time. .

The outer shell of the biodegradable capsule is composed of a first soft layer formed on the upper portion, a second soft layer formed on the lower portion, and a third soft layer other than the first soft layer and the second soft layer, and the first soft layer is formed thinner than the second soft layer, The second weak layer is preferably formed thinner than the third weak layer.

According to an embodiment of the present invention, by arranging a frame member made of a biodegradable natural yarn between two paper sheets, there is an effect of providing a biodegradable, eco-friendly paper mulching paper that is not easily torn.

In addition, the effect of blocking the growth of weeds can be expected by properly blocking sunlight by containing charcoal.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

1 is a cross-sectional conceptual view of a paper mulching paper according to a first embodiment of the present invention.
2 is a cross-sectional conceptual view of a paper mulching paper according to a second embodiment of the present invention.
3 is a cross-sectional conceptual view of a paper mulching paper according to a third embodiment of the present invention.
4 is a cross-sectional conceptual view of a paper mulching paper according to a fourth embodiment of the present invention.
5 is a cross-sectional view of the biodegradation catalyst capsule in FIG.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily carry out the present invention. The embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

Throughout the specification of the present invention, when a part includes a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Throughout the specification of the present invention, when a step is located “on” or “before” another step, this means not only a case in which a step is in a direct time-series relationship with another step, but also a step of mixing after each step and Likewise, the order of two steps may include the same rights as in the case of an indirect time-series relationship in which the time-series order may change.

The terms "about", "substantially", etc. to the extent used throughout the specification of the present invention are used in or close to the numerical value when manufacturing and material tolerances inherent in the stated meaning are presented, and the present invention It is used to prevent an unconscionable infringer from using the disclosure in which exact or absolute figures are mentioned to help the understanding of the As used throughout this specification, the term “step of (to)” or “step of” does not mean “step for”.

Hereinafter, the paper mulching paper according to the first embodiment of the present invention will be first described with reference to FIG. 1 .

The paper mulching paper according to the first embodiment of the present invention is composed of a first paper sheet 100 , a frame member 200 and a second paper sheet 300 as shown in FIG. 1 .

The first paper sheet 100 and the second paper sheet 300 may be made of waste paper, general pulp, duck pulp and abaca pulp, and the first paper sheet 100 and the second paper sheet 300 . ), a coating layer may be formed by coating the mixed coating solution in one layer or multiple layers, and may be coated on one side or both sides.

The coating layer may be formed by coating a material mixed with a mineral material and a natural adhesive on one or both sides of at least one of the first paper sheet 100 and the second paper sheet 200 to supply nutrients to crops and soil.

The mineral may include at least one of germanium, bentonite, bamboo charcoal, ocher, elvan, jade, cerium, injection, and lanthanum, and the coating layer may be formed by coating a mineral solution in which a mineral and water are mixed.

The mineral solution may be prepared by using 4.5 to 18 parts by weight of a mineral based on 100 parts by weight of water, specifically, 0.5 to 2 parts by weight of germanium, 0.5 to 2 parts by weight of bentonite, 0.5 to 2 parts by weight of bamboo charcoal with respect to 100 parts by weight of water Part, loess 0.5-2 parts by weight, elvan stone 0.5-2 parts by weight, jade 0.5-2 parts by weight, cerium 0.5-2 parts by weight, injection 0.5-2 parts by weight, and lanthanum 0.5-2 parts by weight may be mixed.

Germanium has the effect of killing harmful fungi. In addition, germanium has a function of emitting far-infrared rays, and in particular, when the compounding amount of germanium is less than 0.5 parts by weight, the effect of killing harmful fungi is low. Since it can be killed by inhalation, the blending amount of germanium is preferably 0.5 to 2 parts by weight.

As an interlayer structure, bentonite performs the function of inhaling and killing harmful fungi existing in the soil between layers. This bentonite expands 10 to 20 times its weight and discharges minerals through ion exchange to provide nutrients to the soil and crops. It works.

In particular, when the blending amount of bentonite is less than 0.5 parts by weight, the effect of killing harmful fungi is low. Silver is preferably 0.5 to 2 parts by weight.

Because bamboo charcoal has an adsorption action, it can remove odors generated during decomposition, and since bamboo charcoal has sterilizing power, it functions to inhibit bacterial growth during decomposition.

In particular, when the blending amount of bamboo charcoal is less than 0.5 parts by weight, the effect of inhibiting bacterial growth is low, and when the blending amount of bamboo charcoal is more than 2 parts by weight, there may occur a problem of inhibiting the propagation of bacteria necessary for decomposition, so the blending amount of bamboo charcoal Silver is preferably 0.5 to 2 parts by weight.

Red clay is a natural binder that is harmless to the human body, and such yellow clay contains iron (Fe), magnesium (Mg), sodium (Na), potassium (K2O), mina ( _Al 2 O ₃ ), calcium (CaCO ₃ ) and silica ( SiO ₂ ) and the like, and loess is a yellow mineral composed of 0.05-0.01mm silt particles, and emits a large amount of far-infrared rays.

Loess has a humidity control effect. Specifically, loess emits moisture when dry and absorbs moisture when humidity is high to control the amount of water supplied to crops.

In addition, loess has a function to remove odors and has a sterilization function to prevent crops from being infected with bacteria.

In particular, when the blending amount of loess is less than 0.5 parts by weight, the effect of preventing bacterial infection is reduced. When the blending amount of loess exceeds 2 parts by weight, the space between the soils is narrow due to the unique viscosity of loess when mixed with the existing soil. As the amount of oxygen penetrating between the spaces is reduced, the decomposition rate of the recycled paper may be delayed, so the mixing amount of loess is preferably 0.5 to 2 parts by weight.

Elvan stone can improve water quality by slightly alkalizing water. In addition, elvan stone can be expected to have the effect of supplying clean water to crops by decomposing harmful bacteria in the water quality.

When the blending amount of elvan stone is less than 0.5 parts by weight, the water quality improvement effect may be low, and when the blending amount of elvan stone exceeds 2 parts by weight, even beneficial bacteria in the water can be decomposed, so the blending amount of elvan stone is preferably 0.5 to 2 parts by weight.

Jade has the effect of decomposing harmful wastes, when the compounding amount of jade is less than 0.5 parts by weight, the effect of decomposing wastes may be insignificant, and when the compounding amount of jade is more than 2 parts by weight, the decomposition rate of the mulching paper may be delayed, so the compounding amount of jade is 0.5-2 weight part is preferable.

Cerium performs a function of activating the cultivation rate of crops, and when the compounding amount of cerium is less than 0.5 parts by weight, the effect of improving the cultivation of crops may be insignificant. Therefore, the blending amount of cerium is preferably 0.5 to 2 parts by weight.

Injection is a reddish underground mineral, and it can be expected to have the effect of activating the cultivation speed of crops.

In particular, when the injection amount is less than 0.5 parts by weight, the effect of improving the cultivation of crops may be insignificant. desirable.

Lanthanum functions to activate the cultivation rate of crops. In particular, when the compounding amount of lanthanum is less than 0.5 parts by weight, the effect of improving the cultivation of crops may be insignificant. When the compounding amount of lanthanum exceeds 2 parts by weight, the decomposition rate of the mulch paper may be delayed, so the blending amount of lanthanum is preferably 0.5 to 2 parts by weight.

In addition, as another mineral, at least one or more of zeolite, kaolite, diatomaceous earth and talc may be further included. In this case, in addition to the existing mineral solution, 100 parts by weight of water, 0.5 to 1 parts by weight of zeolite, 0.5 to kaolite 1 part by weight, 0.5 to 1 part by weight of diatomaceous earth, and 0.5 to 1 part by weight of talc may be added.

Natural zeolite can be used for zeolite, and zeolite is one of crystalline aluminosilicate. Zeolite is a white or colorless hydrous aluminum silicate mineral group whose main constituent metals are sodium, calcium and potassium, and has a composition similar to that of feldspar.

Zeolite has fine pores, has molecular sieve action and cation exchange ability, and zeolite can be used as an ion exchanger, adsorbent and catalyst. can reduce

Kaolite is a material with a high water absorption rate, and kaolite has a high absorbency, so it has a sticking property.

Diatomaceous earth uses are divided according to the physical and chemical use of the product. Diatomaceous earth is formed with innumerable porous materials, and each particle has a very irregular shape. Many capillary phases are formed due to

In addition, diatomaceous earth has good filterability and can be used as an absorbent. Specifically, diatomaceous earth has internal pores like zeolite, so it can absorb 2 to 3 times more liquid than its own weight. It has excellent absorbency and can prevent the absorbed material from leaking again.

Talc is a soft rock composed mainly of magnesium. Talc can nourish the soil.

As described above, the paper mulching paper according to the first embodiment of the present invention is made of a paper material, not a synthetic resin material, so that it rots over time and mixes with the soil, unlike the synthetic resin material that must be recovered again after use. Therefore, not only can the use of manpower for recovery be reduced, but also the paper rots and serves as a fertilizer.

On the other hand, when the mulching paper is composed only of the first and second paper sheets described above, the strength is weak compared to the conventional mulching paper formed of a vinyl material, so there is a problem in that the mulching paper is coated or it is rained.

Moreover, when moisture comes into contact with the mulching sheet for rain or crop growth, the strength of the mulching sheet made of paper becomes weaker, and thus there is a problem in that it is difficult to exert its proper function.

In order to prevent this problem, the paper mulching paper according to the first embodiment of the present invention is to arrange the frame member 200 between the first paper sheet 100 and the second paper sheet 300 as shown in FIG. can

In particular, the frame member 200 has a net structure formed by crossing biodegradable natural yarns with each other.

In particular, the above-described frame member 200 is made of biodegradable yarn so as to be biodegradable together with the first paper sheet 100 and the second paper sheet 300 when a predetermined time elapses, and the biodegradable yarn is knitted into a mesh structure. It is preferable to use the one prepared by

However, it goes without saying that the frame member 200 can be formed by biodegrading the first paper sheet 100 at regular intervals and supplying a plurality of yarns in the longitudinal and rotational directions, respectively.

In this case, the biodegradable thread is PCL [Poly (ε-caprolactone)], PLA [Poly (lactic acid)], Diol/Diacid-based aliphatic polyester, PG [Poly (glycolic acid)], Poly (phosphate ester), Poly (phosphazene) ), PHB (poly-hydroxy butyric acid), etc., and the biodegradable yarn is manufactured by melting and spinning a biodegradable resin such as PCL resin, followed by stretching and cooling.

As the frame member 200 is formed between the first paper sheet 100 and the second paper sheet 300, the strength of the paper mulching paper is increased so that it is not easily torn during the mulching operation. There is a natural eco-friendly advantage, such as biodegradation together with the first paper sheet 100 and the second paper sheet 200 after the lapse of time.

On the other hand, it is preferable to apply a natural adhesive to adhere the above-described frame member 200 to the first paper sheet 100, and the natural adhesive is rice or bran paste, lacquer, glue, rosin, starch extract, etc. It is preferable to use natural materials.

In addition, at least one of the first paper sheet 100 and the second paper sheet 300 of the paper mulching paper according to an embodiment of the present invention may be formed by mixing pulp, water and charcoal powder, furthermore, such charcoal powder may be included in the frame member 200 .

When any one of the first paper sheet 100, the second paper sheet 300 and the frame member 200 is manufactured, when charcoal powder is included, it is possible to effectively block sunlight due to this, and as a result, the growth of weeds. can be suppressed.

Furthermore, when biodegradation of paper mulch paper, charcoal powder accumulates in the soil, adsorbing pesticides and chemical fertilizers that remain in the soil and acidify the soil to neutralize the acidified soil, as well as adsorb and insolubilize the heavy metals present in the soil to produce crops can reduce the risk of heavy metals that can accumulate in the human body through can supplement

On the other hand, when the entire surface of the above-described paper mulching paper is clogged, it is difficult to drain rainwater, and there is a problem in that rainwater collects on the top of the paper mulching paper.

In order to prevent this problem, mulching paper with a hole for drainage has been proposed, but the installation is slow or the paper mulching paper is torn frequently.

Therefore, the paper mulching paper according to the first embodiment of the present invention has a cut-out that is commonly penetrated in the first paper sheet 100 , the second paper sheet 300 and the frame member 200 in order to solve the above-mentioned problems. can be formed.

Specifically, the cut-out portion maintains the state attached to the paper mulching paper on one side and the other side passes through the first paper sheet 100, the second paper sheet 300, and the frame member 200 in common. configured to form.

In this case, since the cutout is formed with one side attached to the paper mulching paper, the manufacturing process is simplified and the manufacturing time is also reduced.

In addition, the paper mulching paper according to the second embodiment of the present invention may further include a reflective film 400 attached to the upper surface of the second paper sheet 300 as shown in FIG. 2 .

The reflective film 400 is configured to reflect incident sunlight again, and through this, the temperature inside the paper mulching paper can be prevented from being higher than a preset standard.

Furthermore, it is preferable that the reflective film 400 is also formed of a biodegradable material such as the first paper sheet 100 , the second paper sheet 300 , and the frame member 200 described above.

In addition, the paper mulching paper according to the third embodiment of the present invention has a configuration including a functional coating layer 500 in the paper mulching paper according to the first embodiment of the present invention, and this functional coating layer 500 is as shown in FIG. Likewise, it is formed on at least one surface of the first paper sheet 100 and the second paper sheet 200 .

The functional coating layer 500 contains fertilizers and pesticides, and specifically, dimethomorph wettable powder and urea fertilizer having a nitrogen content of 40% or more may be mixed and contained.

In addition, polyvinyl alcohol may be applied as a binder for attaching the above-described fertilizer and pesticide ingredients to at least one of the first paper sheet 100 and the second paper sheet 300 , and by this functional coating layer 500 , By applying fertilizers and pesticides to crops, it is possible to prevent pests and diseases and to increase yields.

Hereinafter, a paper mulching paper according to a fourth embodiment of the present invention will be described with reference to FIGS. 4 and 5 .

The paper mulching paper according to the fourth embodiment of the present invention has the same structure as the paper mulching paper according to the first embodiment of the present invention described above, but a plurality of through holes in the frame member 200 as shown in FIG. 210 are formed at preset intervals, and the biodegradation promoting module for the injection of the biodegradation catalyst is accommodated in the plurality of through-holes 210 .

This biodegradation promoting module is specifically composed of a biodegradable capsule 220 and an expandable member 230 as shown in FIG. 4 .

The biodegradable capsule 220 is formed in the form of a capsule to accommodate the biodegradation accelerator therein, and the biodegradable capsule 220 is formed in an oval shape as shown in FIG. , is composed of a third soft layer 223 other than the second soft layer 222 and the first soft layer 221 and the second soft layer 222 formed below.

The expandable member 230 has a hollow formed therein, the biodegradable capsule 220 is accommodated in the hollow, and the outer circumferential surface is configured to be in contact with the inner wall of the through hole 210 .

On the other hand, the coefficient of thermal expansion of the expandable member 230 should be configured to be greater than that of the frame member 200 and the biodegradable capsule 220, and when the temperature rises through this, the inner peripheral surface of the expandable member 230 is the biodegradable capsule ( By pressing 220), the biodegradable material accommodated in the biodegradable capsule 220 is ejected to the outside.

In addition, the injection of the biodegradable material may be made after a specific time has elapsed rather than due to a rise in temperature, and for this purpose, the expandable member 230 may be made of a material that expands slowly over time. .

In addition, as described above, lateral pressure is applied to the biodegradable capsule 220 by the expansion of the expandable member 230, thereby discharging the biodegradable material contained in the biodegradable capsule 220 to the outside, the biodegradable capsule ( 220), it is possible to more uniformly discharge the biodegradable material to the paper mulching paper when manufacturing the outer shell as shown in FIG.

Specifically, by forming the first soft layer 221 as the thinnest, then forming the second soft layer 222 as the thinnest, and forming the third soft layer 223 as the thickest, the expandable member 230 is a biodegradable capsule ( When the 220) is pressed in the lateral direction, it is preferable to first break the first soft layer 221 so that the biodegradable material is sprayed in the upward direction.

At this time, the biodegradable material sprayed in the upward direction may provide the biodegradable material to the second paper sheet 300 disposed thereon, and the biodegradable material sprayed in the upward direction moves downward by its own weight to the first paper sheet ( 100) may also be supplied with a trace amount of biodegradable material.

In addition, even after the first soft layer 221 is damaged, the expandable member 230 continues to press the biodegradable capsule 220 , and then the second soft layer 222 is broken together, so that the biodegradable material is transferred to the first paper sheet 100 . will be transmitted

Since the biodegradable material sprayed upward through the first soft layer 221 is transferred to the first paper sheet 100 via the second paper sheet 300 , at this time the biodegradable material transferred to the first paper sheet 100 . Although the amount of material is small, as described above, since the second soft layer 222 is broken after a certain period of time has elapsed, additional biodegradable material can be delivered to the first paper sheet 100, so evenly apply the biodegradable material to the paper mulching paper can supply.

In the above, the paper mulching paper according to various embodiments of the present invention has been described, and each of the embodiments may be carried out alone or may be carried out by mixing the embodiments. In addition, the present invention is not limited to the above embodiments, it can be modified in various forms, and it is clear that many modifications are possible by those skilled in the art within the technical spirit of the present invention. Do. In addition, various forms of substitution, modification and change will be possible by those skilled in the art within the scope not departing from the technical spirit of the present invention described in the claims, and it is said that this also falls within the scope of the present invention. will be.

100: first paper sheet
200: frame member
300: second paper sheet
400: reflective film
500: coating layer

Claims (3)

a first paper sheet;
a frame member disposed on the first paper sheet; and
a second paper sheet disposed on the frame member;
including,
The frame member has a net structure formed by crossing biodegradable natural yarns with each other,
At least one of the first paper sheet and the second paper sheet is formed by mixing pulp, water and charcoal powder, and the frame member includes charcoal powder,
A plurality of through-holes are formed in the frame member at preset intervals, and a biodegradation promoting module for spraying a biodegradation accelerator is accommodated in the plurality of through-holes,
The biodegradation promoting module includes a biodegradable capsule formed in the form of a capsule to accommodate the biodegradation accelerator therein, and an expandable member arranged to accommodate the biodegradable capsule in a hollow formed therein and to have an outer circumferential surface in contact with the inner wall of the through hole, and ,
The thermal expansion coefficient of the expandable member is greater than the thermal expansion coefficient of the frame member and the biodegradable capsule,
The outer shell of the biodegradable capsule is composed of a first soft layer formed on the upper portion, a second soft layer formed on the lower portion, and a third soft layer other than the first and second soft layers, and the first soft layer is formed thinner than the second soft layer, Paper mulching paper, characterized in that the second soft layer is formed thinner than the third soft layer.
The method according to claim 1,
Paper mulching paper, characterized in that it further comprises a reflective film attached to the upper surface of the second paper sheet.
The method according to claim 1,
Further comprising a functional coating layer coated on at least one of the first paper sheet and the second paper sheet,
The functional coating layer is formed by coating a coating material mixed with dimethomorph wettable powder and urea fertilizer having a nitrogen content of 40% or more on the first and second paper sheets using polyvinyl alcohol as a binder,
Paper mulching paper, characterized in that a plurality of through-holes are formed in the frame member at preset intervals, and a biodegradation promoting module for spraying the biodegradation accelerator is accommodated in the plurality of through-holes.

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