WO2020222368A1

WO2020222368A1 - Eco-friendly biodegradable pulp mulching paper and manufacturing method therefor

Info

Publication number: WO2020222368A1
Application number: PCT/KR2019/011358
Authority: WO
Inventors: 백남두
Original assignee: 백남두
Priority date: 2019-04-30
Filing date: 2019-09-04
Publication date: 2020-11-05

Abstract

The present invention relates to an eco-friendly biodegradable pulp mulching paper and a manufacturing method therefor. The mulching paper has a structure in which a mixture is attached to a pulp base sheet, and comprises: a pulp base sheet produced by a mechanical wood pulp process and weighing 40g-60g/m²; 400 liters of formulation water for mixing the mixture to be attached to the pulp base sheet; 2-5 kg of Cheonggukjang, a fast-fermented bean paste, containing Bacillus subtilis bacteria for biodegradation and added to the formulation water; 2-5 kg of molasses added as a feed for the Bacillus subtilis bacteria in the formulation water; 30-50 kg of charcoal powder, mixed in the formulation water, for adjusting sunlight transmittance and humidity; 80-120 kg of an adhesive mixture containing a carbohydrate-based adhesive and an albumin adhesive at a ratio of 1:3 to 3:1 and added to the formulation water; 0.8-1.2 kg of a solution of a CMC binder in 20 ℓ water, added to the formulation water, for combining the composition and increasing the viscosity; 80-120 g of a cellulose dispersant added to the formulation water; and 250-500 g of each of boron and zinc, added as trace element fertilizers to the formulation water. The fractions of the mixture components are suitably selected according to states of environments or soils in which crops grow, or according to crops and are attached at a uniform thickness to the pulp base sheet (200) so as to have a dry weight of 4g-8 g/m², whereby an eco-friendly biodegradable pulp mulching paper is made.

Description

Eco-friendly biodegradable pulp mulching paper and its manufacturing method

The present invention relates to an eco-friendly biodegradable pulp mulching paper and a method for manufacturing the same, and more particularly, to control weeds, promote growth, sterilization and insecticide, soil erosion while cultivating crops by covering the surface of a field, paddy field or house soil for cultivating crops. It is related to a mulching paper that achieves the purpose of prevention, soil moisture maintenance, geothermal control, fertilization of trace element fertilizers, and is biodegradable environmentally by activating microorganisms.

Mulching materials cover the surface of cultivated soil when growing crops, and are used for the purposes of weed control, soil erosion prevention, moisture retention, and thermal insulation.

In the past, eco-friendly materials such as rice house or grass were used as mulching materials, but in recent years, vinyl film, which is cheap and easy to implement, has been mainly used.

However, since conventional vinyl film is not biodegradable, there is a hassle of collecting the vinyl film from the cultivated land by separately inputting manpower after harvesting by using the vinyl film once to cultivate crops. There was a problem that the film became a source of environmental pollution.

In recent years, bio (or natural) degradable mulching materials have been developed to solve the above problems of conventional vinyl films. These biodegradable mulching materials are known to be a type in which a biodegradable polymer is added to a vinyl film so that the vinyl film is easily decomposed and disassembled, and two concepts are known that use a biodegradable natural material as a raw material.

As an example of a prior art to which a biodegradable polymer is added, U.S. Patent No. 5,407,979 discloses a degradable thermoplastic film composed of an alkanoyl polymer, an ethylene polymer, and a biodegradable polymer, starch. Another Korean Patent Registration No. 10-0545271 uses stearic acid, lactose, ethyl acetate, powdered milk, etc., such as LDPE (low density polyethylene), LLDPE (linear low density polyethylene), HDPE (high density polyethylene), PSP (polystyrene paper) and PP (polyethylene). Propylene) and other plastic resins are mixed and processed, and then extruded.

However, by using a plastic resin as a base polymer, the shape of the film is disassembled, so that it looks as if it is "biodegradable", but still has a problem that the fine film made of plastic resin remains in the soil and thus becomes a source of soil pollution. Polyethylene (PE), polypropylene (PP), etc., which are finely decomposed in the soil and remain in the soil, have a half-life of 500 years and are hardly decomposed permanently.

As an example of biodegradable mulching paper using natural materials as a raw material, Korean Patent Laid-Open Publication No. 10-2004-0021196 discloses a mulching mat that reinforces tensile strength by melting and spraying a biodegradable resin on a roll-shaped recycled paper. -0116974 discloses a biodegradable mulching paper containing vegetable glue, animal glue, pigment, catalyst, tapioca in a fiber raw material consisting of noil and tencel or rayon, and Korean Patent No. 10-1347898 shows natural cotton and natural An eco-friendly biodegradable mulching paper including rayon, natural hemp, or a fiber raw material that is a mixture thereof, natural fibers extracted from coconut blood, almond blood, sugar cane or bamboo, and a natural adhesive that is vegetable glue or animal glue is disclosed, respectively. However, they have a problem that they are not widely used in farms due to problems such as a delay in the biodegradation period.

The present invention is to solve the conventional problems as described above, by covering the surface of the arable land where crops are grown to suppress the growth of weeds, and by using natural materials that can gradually biodegrade by activating microorganisms during use, environmentally friendly To provide a biodegradable eco-friendly mulching paper coated or attached with a biodegradable composition.

Another object of the present invention is to provide a biodegradable mulching paper that is decomposed over time in its natural state and does not cause soil contamination even without a separate collection operation after crop cultivation, and has a beneficial effect on the growth of subsequent crops. .

Another object of the present invention is to provide an eco-friendly biodegradable mulching paper capable of improving the mechanization operation using the mulching paper by providing a mulching paper having high tensile strength.

Another object of the present invention is to include sterilization and pesticides to prevent the occurrence of diseases and pests of crops, and to include trace elements that are difficult to fertilize to help farming convenience and increase crop yield.

In order to perform the above-described task, the present invention is made of a structure in which a mixture is attached to the pulp moji 200, and a pulp moji 200 of a weight of 40 g to 60 g/m ² manufactured by a wood mechanical pulp process; 400 liters of water for mixing the mixture attached to the pulp moji; 2 to 5 kg of cheonggukjang containing Bacillus subtilis bacteria added for biodegradation in the blended water; 2 to 5 kg molasses added to the compounded water for feeding of Bacillus subtilis; 30 to 50 kg of charcoal powder mixed with the blended water for sunlight transmission and humidity control; 80 to 120 kg of an adhesive mixture in which a carbohydrate-based adhesive and an albumin adhesive are mixed in a ratio of 1:3 to 3:1 and added to the water. 0.8 ~ 1.2kg dissolved in 20ℓ water to be added to the blending water to bind the composition and increase the viscosity of the CMC binder; 80 to 120 g of cellulose dispersant added to the blended water; 250 to 500 g of boron and zinc respectively added to the compounded water as trace element fertilizers; 10 to 30 liters of a strength enhancer in which polyacrylamide and oxidized starch are mixed in a ratio of 1:3 to 3:1 in the blended water; And 2 to 4 kg of cinnamon and 5 to 15 liters of detoxified sulfur and 400 to 600 g of roterone to be added for insecticide, and the amount of the mixture component is to grow crops. It is selected appropriately for the environment, soil conditions or crops, and is attached to the pulp moji 200 to a dry weight of 4 g to 8 g/m ² in a uniform thickness to constitute an eco-friendly biodegradable pulp mulching paper.

The eco-friendly biodegradable pulp mulching paper of the present invention configured as described above is biodegradable by Bacillus subtilis, an anaerobic bacteria living in the eco-friendly pulp moji by attaching cheonggukjang and molasses, and has the effect of being naturally degraded over time, It contains charcoal powder for controlling sunlight penetration and humidity to block weed growth, and contains an adhesive mixture of carbohydrate-based adhesives and albumin adhesives, and CMC binders that bond the composition and increase the viscosity to reinforce the tensile strength of mulching paper. It is not easily damaged when used for sterilization, cinnamon and detoxified sulfur are mixed as a disinfectant, and sterilization and insecticide are performed by mixing roteron and pyrethrum, an insecticide, and a trace element fertilizer that is difficult to fertilize is included, which greatly reduces manpower. The attached mixture has a beneficial effect on cultivated crops or soil, such as activating soil microbes during the biodegradation process, thereby promoting the growth of the crop and has a beneficial effect on the growth of subsequent crops.

1 is a manufacturing process diagram of an eco-friendly biodegradable pulp mulching paper according to the present invention

2 is an explanatory diagram of an apparatus for manufacturing eco-friendly biodegradable pulp mulching paper

Figure 3 is a photograph of using the eco-friendly biodegradable pulp mulching paper of the present invention for field crops

Figure 4 is a photograph of using biodegradable pulp mulching paper for rice fields

Hereinafter, a composition of an eco-friendly biodegradable pulp mulching paper according to an embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

1 is a process chart of manufacturing eco-friendly biodegradable pulp mulching paper according to the present invention, FIG. 2 is an explanatory diagram of an apparatus for manufacturing eco-friendly biodegradable pulp mulching paper, and FIG. 3 is a photograph of the use of the biodegradable pulp mulching paper of the present invention for field crops. 4 is a photograph of using biodegradable pulp mulching paper for rice crops.

1 is a schematic process diagram showing a preferred embodiment of the present invention. Referring to FIG. 1, a pulp moji preparation step (S10), a mixture preparation step (S20), a deposition amount determination step (S30), a mixing heating step (S40) of mixing and heating the prepared mixture, and the mixed-heated mixture are pulp Eco-friendly biodegradation through the application step (S50) of applying to moji, flattening step (S60) of flattening the mixture applied to pulp moji with high pressure air, drying step (S70) of drying the adhering mixture after being applied to pulp moji It consists of a winding step (S80) of winding the pulp mulching paper.

Pulp moji preparation step (S10)

The pulp moji 200 is preferably paper made using pulp made by mechanically pulverizing wood without chemical treatment. Since chemical pulp or recycled waste paper is treated with chemicals to remove non-fibers to make sulfate pulp or sulfite pulp, etc., recycled paper made from these is slow to biodegrade and may cause acidification of the soil, and waste paper is in the process of recycling. It is not preferable because a large amount of chemical treatment is involved. Wood mechanical pulp used for pulp moji is made by rotating a millstone and applying pressure to logs to make small chips or small chips obtained by processing them with a refiner, or processing small wood chips with steam. Then, the pulp moji manufactured by selecting any one of the thermo-mechanical pulp obtained by processing the refiner is used.

The pulp moji is determined in the range of 40g ~ 60g/m ² of decomposition rate and weighing according to the usage environment, soil condition, cropping, and economic feasibility. For optimal weighing, it is desirable to obtain and apply preliminarily researched data on the use environment, soil condition, crop type, as well as the tensile strength required by the mulching machine.

Eco-friendly biodegradable pulp mixture 500 preparation step (S20)

1. Cheonggukjang and molasses

Cheonggukjang and molasses are used as fermented biodegradants of the present invention. Cheonggukjang is the main fermenting bacterium of yeast fungus, which activates the anaerobic bacteria Bacillus subtillis attached to beans and rice straw, thereby decomposing the organic matter, pulpmoji. The molasses, which is added with Cheonggukjang, serves as a nutrient necessary for Bacillus subtilis to reproduce vigorously. Cheonggukjang and molasses are applied or adhered to either or both surfaces of pulp moji to decompose pulp moji over time by fermentation. Cheonggukjang and molasses are selected according to the environment in which the crop is grown, the soil condition, or the crop, and it is desirable to add 2 to 5 kg of dry weight per 400ℓ of mixing water.The biodegradation rate of pulp moji can be adjusted according to the amount added, and after fermentation It promotes the growth of crops by activating and proliferating soil microorganisms.

If less than 2kg of cheonggukjang powder is added, the number of cheonggukjang bacteria decreases, and the biodegradation period lasts for more than 6 months, and if it exceeds 5kg, the biodegradable pulp period is too short.

Many microorganisms coexist in the soil and secrete enzymes of organic substances such as fallen leaves, rice sheds, and compost that flow into the soil and break them down into small substances such as glucose and amino acids. In addition, soil microbes help plant growth by producing plant growth promoting substances.

The soil is a very complex environment in which plants and microorganisms interact, and the three major microorganisms in the soil are mold fungi, actinomycetes, and bacteria.

Filamentous fungi belong to most of the mycelial fungi and form a symbiotic relationship between plant roots. Aspergillus (Aspergillus) is a representative strain of fungi, such as meju, malt, etc., which are used to make sake such as cheongju, miso, and makgeolli, correspond to this.

Actinomycetes were considered to be microorganisms located between fungi and bacteria, but are now classified as prokaryotes close to bacteria, that is, the order of bacteria. Cells are connected like fungal hyphae in the shape of a long thread to form spores at the end, and play an important role in the decomposition of various organic substances, especially in the decomposition of hardly decomposable organic substances. It is said that about 1-10 million actinomycetes exist in 1 gram of fertile soil, and various antibiotics are made using actinomycetes.

Bacteria are classified into eukaryotes (eukarya), bacteria (bacteria), and archaea, and have the characteristics of prokaryotic organisms as they are, and do not have a nuclear membrane, mitochondria, or chloroplast-like structure. The general external morphology has a number of cilia radially growing around the oval cells, and has one elongated flagella similar to the tail. Unlike higher organisms, bacteria reproduce through different metabolic methods depending on their type. It can be largely divided into aerobic bacteria and anaerobic bacteria.Aerobic bacteria, like higher organisms, gain energy through oxygen-mediated breathing, and anaerobic bacteria are called ``organized aerobic bacteria'' and the presence or absence of oxygen. Regardless of the bacterium that can grow, it is referred to as an anaerobic bacterium, and Bacillus subtilis used in the present invention is a bacterium that can grow regardless of the presence of oxygen, and belongs to the anaerobic bacteria. The process of degradation by aerobic bacteria is called'decay', and the process of degradation by anaerobic bacteria is called'fermentation'.

Bacillus subtilis is currently one of the 369 species and eight subspecies of Bacillus bacteria. It secretes protease and amylase and survives by decomposing mainly soybean components. Bacillus subtilis is known to be active in Korea's climate conditions.

Cheonggukjang is fermented for 20 hours at 40-50℃ temperature and 85-90% humidity by inoculating boiled soybeans with cheonggukjang.The manufacturing period is shorter compared to doenjang, which takes several months, and the bacteria that ferment cheonggukjang are embedded in rice straw. If you wash and dry the rice straw in advance, you can make it at any time, so the material cost is inexpensive, and because it is an anaerobic bacteria, it has the advantage of being well decomposed even in the ground not exposed to air.

Molasses is produced as a by-product in the manufacture of refined sugar from crude sugar, and is distinguished from waste molasses, a transparent, pale yellow viscous sugar solution. General ingredients are water 20-30%, sugar 60-70%, ash 5-10%, and other 5%. Mainly, it is used as an edible raw material such as confectionery or jam, and in the present invention, it is mixed with food necessary to increase the population of Bacillus subtilis, and it is preferable to add 2 to 5 kg of the mixture, and if the amount is less than 2 kg The biodegradation period is prolonged because the population of Cheonggukjang-gyun is insufficient, and if it exceeds 5kg, the biodegradation period is shortened and the intellectual power of the mulching paper decreases.

2. Charcoal powder for controlling sunlight penetration

The mulching paper of the present invention uses palm wood charcoal to control the amount of sunlight transmitted. Coconut charcoal has the advantage of being cheap and easy to pulverize. In addition to palm tree charcoal, willow charcoal, oak charcoal, etc. can be used, and blocking the sunlight will inhibit the germination and growth of weed seeds. The charcoal powder applied/attached to the mulching paper blocks ultraviolet rays of sunlight, and can increase the earth temperature or cool the earth temperature depending on whether the application/attachment surface is directed toward the ground or sunlight. Therefore, it is possible to select the application/attachment surface according to the season, crops, etc. and install it on the farmland. Charcoal is porous and has a very large surface area, so it has excellent breathability, water retention, and water permeability, and becomes a habitat for microorganisms. In addition, charcoal is alkaline with a pH of 8 to 9, and contains mineral elements such as potassium, potassium, and boron to promote plant growth. It is preferable to mix 30-50 kg of charcoal powder in 400 liters of water. If less than 30kg is used, the shading effect may be given, and if it exceeds 50kg, the intellectual power of the mulching paper may decrease.

3. Carbohydrate adhesive and albumin adhesive

An adhesive for bonding cheonggukjang, molasses, and charcoal to the pulp moji 200 is included. Currently, general chemical adhesives used for various purposes discharge substances such as phenol, formalin, and formaldehyde, which adversely affect the human body or the environment, and cannot be used as agricultural adhesives. Therefore, researches on eco-friendly and high-functional adhesives are currently underway.

As an adhesive for making mulching paper, it is a mixture of a carbohydrate adhesive and an albumin adhesive. After applying the adhesive mixture to the pulp moji 200 and drying it, it maintains continuous adhesive strength and becomes food for Bacillus subtilis and decomposes over time. However, during the decomposition process, no substances that adversely affect the soil or the environment are generated.

Carbohydrate-based adhesive is an adhesive obtained from corn, rice, barley, sweet potato, potato, etc. It is the most commonly used adhesive, and it becomes food for Bacillus subtilis when decomposing mulching paper.

Albumin is used as an adhesive in Europe, the Soviet Union, and China since a long time ago, and serum obtained as a clear supernatant liquid by standing still blood of cattle, pigs and other livestock. Since the main component of serum is albumin (albu-min), it is generally called serum albumin adhesive, and is commercialized as a powder dried at low temperature. Albumin can be used alone because it has good water resistance, and can be used in combination with soy protein. Therefore, when mulching paper is used as a water function or when water resistance is required even in field cultivation, the amount of albumin is increased.

When mulching paper is used for cultivation of field crops, an adhesive made of a carbohydrate adhesive is relatively more used, and when water resistance is required, such as rice crops, the content of albumin adhesive can be further increased. These adhesives are preferably mixed with a carbohydrate-based adhesive and an albumin adhesive in a ratio of 1:3 to 3:1 depending on the environment in which the crop is grown, the soil condition, or the crop, and 80 to 120 kg per 400 ℓ of mixing water are added.

4. CMC binder

CMC is an abbreviation of carboxylmethyl cellulose, and is a material made by reacting sodium monochlorate acetate with cellulose dissolved in alkali. Carboxymethylation of more than 40% of the hydroxy groups in cellulose is well soluble in cold water and becomes a stable colloidal solution with high viscosity.It acts as a binder to bind various compositions added to the blended water and a thickener function that increases the viscosity of the liquid. do. After dissolving 0.8~1.2kg of CMC in 20ℓ water, add it to the mixing water.

5. Intellectual strength enhancing agent containing polyacrylamide and oxidized starch

General mulching paper is recognized for its distinguishing advantages from vinyl, but has the disadvantage of being easily torn in the application process, and it has disadvantages that it is difficult to use it wet with water in the case of a rice crop. In order to improve this problem, in the present invention, polyacrylamide and oxide starch are used as a strength enhancer. The strength enhancer is mixed by adjusting the weight ratio of the dry strength enhancing agent and the wet strength enhancing agent according to the environment in which the mulching paper is used. The use of these intellect enhancers can maintain an increase in intellect of more than 15%. The strength enhancing agent may be added during the papermaking process without being applied/attached to the mulching paper.

The dry strength enhancer has a certain weather resistance in order to obtain a mulching effect for a certain period of time in a dry open-air in the cultivation of field crops, and is intended to strengthen the mechanical tensile strength of the paper so that abrasion resistance, etc. is maintained within a certain range. In order to obtain a mulching effect for a certain period of time, the wet strength enhancing agent is used, and has a certain wet tensile strength in order to obtain a mulching effect for a certain period of time while the mulching paper for agricultural use due to continuous irrigation due to the cultivation characteristics of the rice field crop is immersed in the water. In the range of, it is intended to reinforce the roll of mechanical tensile strength of the paper so that abrasion resistance and the like are maintained.

Polyacrylamide is a representative dry strength enhancer and is widely used not only as a strength enhancer in the paper industry, but also as a retention enhancer, dehydration accelerator, and wastewater treatment agent.It is very useful because it can be arbitrarily manufactured to have molecular weight and charge characteristics. Polyacrylamide is often used by copolymerizing with other ionic monomers or by polymerizing alone and then changing to have a charge. In general, 5-10 mol% of an ionic acid monomer is copolymerized in the strength enhancing agent, and is supplied in the form of a solution or powder having 10-20% solid content, and recently, an emulsion type is also widely used.

Oxidized starch is used as a wet strength enhancer. Oxidized starch is obtained by treating starch with various oxidizing agents in order to use it for industrial purposes, giving new properties. It does not dissolve in cold water, but dissolves in hot water. This is made into powder by mixing the starch while adding it to water, oxidizing the starch strongly with a chlorine-based oxidizing agent such as hypochlorite soda, washing it well with water, removing the oxidizing agent, and drying it under the gelatinization temperature. The main ones are starch oxidized by sodium hypochlorite and dialdehyde starch by oxidizing periodic acid. They are also used in paper making, such as siding and as an agent for enhancing wet strength and tensile strength.

For uniform strength enhancement, a dry strength enhancer or a wet strength enhancer is added to the material of the pulp moji 200, mixed evenly, and the pulp composition is compressed and dried according to a conventional paper manufacturing method to produce a sheet. Method can also be used.

It is preferable to use 10 to 30 liters of water for the mixing of polyacrylamide and oxidized starch in a ratio of 1:3 to 3:1, and if it is less than 10 liters, sufficient intellectual power for cultivation does not come out. If it is exceeded, intelligence does not increase compared to the added amount.

6. Cellulose dispersant

Fine particles having an average particle diameter of 5 µm or less starting from cellulose or cellulose, which are natural polymers, and dispersions thereof are used. The cellulose dispersant is used as a composite agent to mix and disperse natural functional mixtures to be mixed. In addition, the cellulose dispersant prepares a suspension of cellulose by reprecipitating a cellulose solution in which cellulose is dissolved in an inorganic acid aqueous solution in water or a coagulant containing 50% by weight or more of water, and acid hydrolysis treatment is performed on the cellulose in the suspension. It can then be prepared by removing the acid from the suspension. The cellulose dispersant is suitable for dispersing the mixture by adding 80 to 120 g to 400 liters of water.

7. Trace element fertilizer containing boron and zinc

Although trace amounts are absolutely necessary in the process of growing crops, they are elements that are difficult to separately fertilize because the required amount is very small. Boron (B), zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) ), etc. In the present invention, a certain amount of boron (B) and zinc (Zn), which are representative of trace elements, may be mixed in advance in water to dilute the pulp paper and used.

Borax or boron is a trace element that is susceptible to deficiency symptoms among many crops that are called the four elements of fertilizer. Boron is not an invalid component because it does not bind to metals or soil particles in the soil, but it must be supplied within an appropriate range every year because it may cause deficiency due to loss or drying by rainwater. As fertilizers containing boron, there are boric acid fertilizers and borax fertilizers. Boric acid fertilizers contain 50% or more of water-soluble boron, and borax fertilizers contain 30% or more of water-soluble boron and sodium as a sub-component, so that when dissolved in water, it is alkaline. Since boron has a high content, it is difficult to spray a small amount evenly, and if excessive fertilization is performed, toxicity appears, so there is no effective countermeasure.If boron is applied/attached to the mulching paper, a small amount can ideally be supplied to the soil.

Zinc maintains the three-dimensional structure of proteins, performs redox reactions, and acts as a binding site for substrates in enzyme proteins, and deficiency of zinc causes yellowing, necrosis, and early leaves of crops. In the present invention, zinc is added in a small amount in the form of zinc sulfate. Zinc sulfate is a colorless, transparent, rhombic columnar crystal. It is easily soluble in water and has disinfectant and astringent properties, so it is also used as a medicine, preservative, and mordant.

The boron and zinc used in the present invention are mixed with each of 250 to 500 g per 400 liters of the blending water, and when less than 250 g of boron is added, the input effect is insignificant, and when it exceeds 500 g, growth is inhibited and leaves dry out. And, it is considered that the input of zinc is sufficient to cultivate general crops with 250-500g. In addition, trace elements such as copper, iron, manganese, and molybdenum may be added if necessary.

8. Cinnamon Powder and Admiral Sulfur

In the present invention, as a functional mixture, cinnamon and detoxified sulfur, which have an antibacterial action, and roterone, which has an insecticidal action, are used. Cinnamon is the dried bark of cassia, and is used as a spice. It is added to cakes and cookies because of its sweetness-enhancing properties, and is also the main ingredient in Sujeonggwa. The typical medicinal effect of cinnamon is the antibacterial effect of removing mold. The scent ingredient in cinnamon acts like an antibiotic to kill harmful bacteria, causing gastric ulcers, Helicobacter bacteria, staphylococcus aureus causing food poisoning, and pathogenic Escherichia coli O-157 It is said that aflatoxin, which occurs in food and causes liver cancer, does not occur in bread containing cinnamon. Cinnamon powder is used by mixing 2~4kg in 400 liters of water. If less than 2kg is added, the mold removal effect is insignificant, and if more than 4kg is added, the input marginal effect is drastically reduced.

Sulfur is a nutrient function of plants, insecticide and sterilization, and has a special function in killing particularly harmful fungi, but it is toxic and can cause fatal damage to nearby crops and soil microorganisms if sprayed more than an appropriate amount. Detoxified sulfur, which has been liquefied by treating sulfur insoluble in water with useful microorganisms, has been developed and is commercially available.Degradable granulated sulfur has a very high melting temperature of 118 degrees, so sulfur that is difficult to decompose even when sprayed on the soil is mixed with bentonite under certain conditions. It is a product improved to be easily converted into SO4-2 form that can be absorbed by plants by mixing, and is sold in granular form. In the present invention, detoxicated sulfur is used in consideration of the convenience of mixing. It is preferable to mix 5 to 15 liters of detoxicated sulfur to 400 liters of water. An amount less than 5 liters significantly reduces the fungal killing effect, and an amount greater than 15 liters affects the growth of beneficial soil microorganisms.

Roteron, which has an insecticidal action, is an insecticidal ingredient extracted from the roots of the legume, Derris elliptica. Colorless crystals are soluble in acetone and chloroform. Roteron is less toxic to mammals, but is toxic to fish and all leaf-eating pests. In the state of pest eggs, larvae, and pupa, it inhibits growth, inhibits larvae and pupa molting, and suppresses the appetite of adult insects, causing them to starve. It is effective in removing larvae of spotted mite, cucumber thrips, cotton aphids and various insects. Roteron is used by mixing 400 to 600 g in 400 liters of water.

In addition to roterone, pyrethrum can be used to increase the insecticidal effect. Dried flowers of the asteraceae plant pyrethrum, and South Korea is the enemy of cultivation. When the flowers are in full bloom in May to June, pick them and dry them in the sun or in a dryer at about 50℃. There is a pale reddish yellow oil-like substance called pyrethrin in the flower part. Pyrethrin is soluble in organic solvents. It is highly toxic to cold-blooded animals, especially insects, and paralyzes the motor nerve, but it is not toxic to warm-blooded animals, so it can be included in biopulp mulching as a high-grade anthelmintic. Roteron can be used by mixing 400 to 600 g in 400 liters of water.

Composition determination step of eco-friendly biodegradable pulp mixture (S30)

The environment, soil conditions, and cultivated crops of mulching are very diverse. It is preferable to make the composition ratio of the biodegradable mixture 500 and the weight or thickness applied/attached to the mulching paper differently depending on the interior of the green house or the open air, fields or rice fields, root crops, and leafy vegetables.

In order to determine the composition ratio of the eco-friendly biodegradable pulp mixture 500, collection and analysis of data on the results of test cultivation or actual applied cases should be preceded, and the input amount should be determined within an appropriate range.

Mixing heating step (S40)

When the composition ratio is determined in the composition ratio determination step (S30) of the mixture, 400 liters of mixing water is supplied to the mixing heating tank 300, and an eco-friendly biodegradable pulp mixture 500 is added. Depending on the mixture, it may be added by dissolving in water in advance, and it may be added sequentially. When the mixing water in the mixing heating tank is heated to 50 ~ 70 ℃, it is easy to dissolve. A heater, thermometer, alarm, and stirrer are installed in the mixing heating tank so that an alarm sounds when the temperature exceeds the appropriate temperature so that appropriate measures can be taken, and it is desirable that the stirring continues during the papermaking process.

Application step (S50)

The biodegradable pulp mixture 500 passed through the mixing heating step (S40) in the mixing heating tank 300 is transferred to the coating tank 400 through a transfer pipe and applied to the pulp moji. A water level sensor 450 is installed in the coating tank, and an automatic valve is installed in the transfer pipe. When the water level of the biodegradable pulp mixture falls below a certain level, it is detected by the water level sensor 450 and the automatic valve is opened. It is preferable that the automatic valve is configured to close when the water level is above a certain level.

The biodegradable pulp mixture passes through the coating roller 600 installed to contact the biodegradable pulp mixture by being bonded to the rim of the coating tank 400 by installing a roll wound with pulp moji at the top of one side of the coating tank 400. It is preferable that the application is made in a manner that is applied to the pulp moji 200.

High pressure air leveling step (S60)

The biodegradable pulp mixture applied to the pulp moji does not adhere evenly and has lumps, so if it is dried immediately, it is not flattened evenly, so the high-pressure air sprayer 650 equal to the width of the pulp moji while ascending from the coating roller 600 When the high-pressure air is injected downward, the high-pressure air injector 650 is disposed so that the lumped portion is cut and falls into the coating tank 400, and the high-pressure air is preferably configured to be generated by a separate air compressor 700. .

Drying step (S70)

The biodegradable pulp mulching paper that has gone through the flattening step by high-pressure air is drawn into the drying chamber 900 in which a hot air fan, infrared or microwave generator, etc. are installed through the withdrawal roller 800, and dried while passing through a plurality of rollers.

Winding step (S80)

The biodegradable pulp mulching paper dried while passing through the drying chamber 900 is wound around a winding roller 950 installed outside the drying chamber 900 to complete the production of eco-friendly biodegradable pulp mulching paper.

The eco-friendly biodegradable pulp mulching paper of the present invention produced as described above is biodegradable by Bacillus subtilis, an anaerobic bacteria by attaching chungkukjang and molasses to the eco-friendly pulp moji, and has the effect of being naturally decomposed over time during use, and the amount of sunlight penetration is controlled. And moisture control charcoal powder is included to block weed growth, and an adhesive mixture of carbohydrate-based adhesives and albumin adhesives, and CMC binders that bond the composition and increase the viscosity are included to reinforce the tensile strength of the mulching paper so that it is not easily damaged. Cinnamon and detoxified sulfur are mixed as a fungicide, and roteron, an insecticide, is mixed for sterilization and insecticide, and it contains a trace element fertilizer that is difficult to fertilize, greatly reducing the manpower to grow crops, and attaching or applying to mulching paper The natural functional mixed composition activated during the biodegradable pulp process activates soil microorganisms, acts usefully on cultivated crops or soil, promotes the growth of the crop, and has an inducing effect on the growth of subsequent crops.

Claims

It consists of a structure in which the mixture is attached to the pulp moji 200,

Pulp moji 200 of 40g ~ 60g / m 2 manufactured by a wood mechanical pulp process;

400 liters of water for mixing the mixture attached to the pulp moji;

2 to 5 kg of cheonggukjang containing Bacillus subtilis bacteria added for biodegradation in the blended water;

2 to 5 kg molasses added to the compounded water for feeding of Bacillus subtilis;

30 to 50 kg of charcoal powder mixed with the blended water for sunlight transmission and humidity control;

80 to 120 kg of an adhesive mixture in which a carbohydrate-based adhesive and an albumin adhesive are mixed in a ratio of 1:3 to 3:1 and added to the compounding water;

0.8 ~ 1.2kg dissolved in 20ℓ water to be added to the blending water to bind the composition and increase the viscosity of the CMC binder;

80 to 120 g of cellulose dispersant added to the blended water; And

250 to 500 g of boron and zinc respectively added to the compounded water as trace element fertilizers; Including, wherein the amount of the mixture component is selected appropriately for the environment in which the crop is grown, the soil condition, or the crop, and is attached to the pulp moji to a dry weight of 4g to 8g/m 2 with a uniform thickness. Eco-friendly biodegradable pulp mulching paper.
The method according to claim 1,

Eco-friendly biodegradable pulp mulching paper, characterized in that 10 to 30 liters of a power enhancer in which polyacrylamide and oxide starch are mixed in a ratio of 1:3 to 3:1 are further included in the blending water.
The method according to claim 1,

Eco-friendly biodegradable pulp mulching paper, characterized in that it further contains 2 to 4 kg of cinnamon and 5 to 15 liters of detoxified sulfur and 400 to 600 g of roterone to be added for insecticide.
The method according to claim 1,

Eco-friendly biodegradable mulching paper, characterized in that 400 to 600 g of pyrethrum having sterilization and insecticidal effects are further included in the water.
Pulpmoji 200 preparation step (S10), 2 to 5 kg of cheonggukjang containing Bacillus subtilis, which is injected for biodegradation in 400 liters of water, and 2 to 5 kg of Bacillus subtilis, Molasses, 30 to 50 kg of charcoal powder for controlling sunlight penetration and humidity control, 80 to 120 kg of adhesive mixture and composition in which a carbohydrate-based adhesive and albumin adhesive are mixed in a ratio of 1:3 to 3:1, and 20ℓ to increase viscosity 0.8 to 1.2 kg of CMC binder dissolved in water, 80 to 120 g of cellulose dispersant; And a biodegradable pulp mixture 500 prepared in each of 250 to 500 g of boron and zinc, which is input as a trace element fertilizer, and the biodegradable pulp mixture 500 according to the environment in which crops are grown, soil conditions or crops. The deposition amount determination step (S30) for determining the composition ratio and the adhesion amount, and the mixing heating step (S40) in which the biodegradable pulp mixture 500 for which the composition ratio is determined is added to the mixing heating tank 300 and heated to 50 ~ 70 ℃, the mixed heating The application step (S50) of transferring the biodegradable pulp mixture 500 to the coating tank 400 and applying it to the pulp moji 200, the high-pressure air planarization step of flattening the biodegradable pulp attached to the moji 200 using high-pressure air ( S60), a drying step (S70) of drying the mulching paper coated or attached to the biodegradable pulp mixture 500 in the drying chamber 900, and a winding step (S80) of winding the dried biodegradable pulp mulching paper. Method for producing biodegradable pulp mulching paper.
The method of claim 5,

In the mixture of the biodegradable pulp mixture 500, the preparation step (S20), 10 to 30 liters of a power enhancer in which polyacrylamide and oxidized starch are mixed in a ratio of 1:3 to 3:1, and 2 to 4 kg of cinnamon added for sterilization 5 to 15 liters of detoxified sulfur and 400 to 600 g of roterone added for insecticide are further included.