KR102026121B1 - Biodegradable agricultural reflection film containing calcium fertilizer ingredient - Google Patents

Biodegradable agricultural reflection film containing calcium fertilizer ingredient Download PDF

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KR102026121B1
KR102026121B1 KR1020180139815A KR20180139815A KR102026121B1 KR 102026121 B1 KR102026121 B1 KR 102026121B1 KR 1020180139815 A KR1020180139815 A KR 1020180139815A KR 20180139815 A KR20180139815 A KR 20180139815A KR 102026121 B1 KR102026121 B1 KR 102026121B1
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biodegradable
poly
reflective film
calcium fertilizer
fertilizer component
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나상수
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(주)세림비앤지
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256Ground coverings
    • A01G13/0268Mats or sheets, e.g. nets or fabrics
    • A01G13/0275Films
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00Botany in general
    • A01G7/06Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00Calcareous fertilisers
    • C05D3/02Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/18Plasticising macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/22Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K11/00Use of ingredients of unknown constitution, e.g. undefined reaction products
    • C08K11/005Waste materials, e.g. treated or untreated sewage sludge
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00Compositions of unspecified macromolecular compounds
    • C08L101/16Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/416Reflective
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2410/00Agriculture-related articles

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Biodiversity & Conservation Biology (AREA)
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  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Botany (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Protection Of Plants (AREA)

Abstract

The present invention relates to a biodegradable agricultural reflective film containing a calcium fertilizer component. More particularly, the present invention relates to an agricultural reflective film which is applied at the bottom of orchard or under crops in the season of harvest to reflect or scatter light to compensate for the insufficient light on the crop or fruit in the season of harvest to induce even coloration and increase the sugar content thereof, thereby enhancing the commercial value of crops or fruits. The present invention relates to the biodegradable agricultural reflective film containing a calcium fertilizer component, which is excellent in elongation and strength to improve the durability against tearing, which is biodegradable in the soil to fundamentally solve the problem of the reflective film waste, and which can promote the growth of crops or fruits by containing the calcium fertilizer component.

Description

칼슘비료성분을 함유한 생분해성 농업용 반사필름{Biodegradable agricultural reflection film containing calcium fertilizer ingredient}Biodegradable agricultural reflection film containing calcium fertilizer ingredient

본 발명은 칼슘비료성분을 함유한 생분해성 농업용 반사필름에 관한 것으로, 보다 상세하게는 수확기의 농작물 또는 과수원 바닥에 깔아서 빛을 반사 또는 산란시켜 수확기의 농작물 또는 과실에 부족한 빛을 보충하여 고른 착색을 유도하고 당도를 높여 농작물 또는 과실의 상품성을 높이기 위하여 사용하는 농업용 반사필름에 관한 것으로서, 신장율과 강도가 우수하여 찢김에 대한 내구성이 향상되고, 토양내에서 생분해되어 폐반사필름의 문제점을 근본적으로 해결하며, 칼슘비료성분을 함유하여 농작물 또는 과실의 생장을 촉진할 수 있는 칼슘비료성분을 함유한 생분해성 농업용 반사필름에 관한 것이다.The present invention relates to a biodegradable agricultural reflective film containing a calcium fertilizer component, and more particularly, it is spread on the bottom of the crop or orchard of the harvester to reflect or scatter light to supplement the light lacking in the crop or fruit of the harvester to provide even coloring. It is an agricultural reflective film used to induce and increase the sugar content to increase the commerciality of crops or fruits, and has excellent elongation and strength to improve durability against tearing, and biodegrade in soil to fundamentally solve the problem of waste reflective film. The present invention relates to a biodegradable agricultural reflective film containing a calcium fertilizer component capable of promoting the growth of crops or fruits by containing a calcium fertilizer component.

일반적으로 수확기 과실의 착색을 좋게 하기 위하여 반사필름을 과수원의 바닥에 깔아 주는 방법이 사용되고 있다. 이러한 농업용 반사필름으로는 다음과 같은 것들이 있다.In general, in order to improve the coloring of the harvester fruit, a method of spreading the reflective film on the bottom of the orchard is used. Such agricultural reflective films include the following.

한국등록특허 10-1229926(등록일자 2013년01월30일)에 OPP필름(Polypropylene을 일축 또는 이축으로 연신을 하여 제조한 필름) 또는 CPP필름(무연신 Polypropylene film) 중에서 선택되는 1종의 필름(1)에 알루미늄층(2)이 증착된 증착필름(A)과 CPP필름, LLDPE필름(선형 Low Density Polyethylene film) 및 HDPE필름(High Density Polyethylene film) 중에서 선택되는 1종의 기재필름(B)을 접합(단, OPP증착필름과 CPP기재필름의 접합된 것은 제외한다)하는 것을 특징으로 하는 농업용 반사필름이 공지되어 있다.1 type film selected from OPP film (film produced by uniaxial or biaxial stretching) or CPP film (unstretched polypropylene film) in Korea Patent Registration No. 10-1229926 (January 30, 2013) 1) a base film (B) selected from a deposition film (A) having an aluminum layer (2) deposited thereon, a CPP film, a LLDPE film (linear low density polyethylene film), and an HDPE film (high density polyethylene film). Agricultural reflective films are known which are bonded (except that the OPP deposition film and CPP substrate film are bonded).

또한, 한국등록특허 10-1303934(등록일자 2013년09월05일)에 합성수지 필름으로 된 기초지에 알루미늄박막층을 증착시켜 형성하는 농업용 반사필름 제조방법에 있어서, OPP, CPP, PET, 다층 구조의 PE 필름들 중에서 선택된 적어도 어느 하나로 형성된 기초지에 알루미늄박막층을 형성하는 단계, 상기 알루미늄박막층 위에 알루미늄박막의 산화방지와 광택보호, 강도 증진 및 주름발생 방지를 위하여 보호층을 형성하되, 상기 보호층은 제올라이트, 칠보석, 벤토나이트, 토르마린, 게르마늄, 맥반석, 패각, 일라이트, 숯, 활성탄, 탄산칼슘, 탈크, 수산화알미늄, 황토, 세라믹 중에서 선택된 적어도 어느 하나의 항균성 무기물을 100~1000 메쉬의 크기의 입상으로 보호층 중량 대비 01~60중량%을 포함하여 0005~0100mm의 두께로 형성하는 단계를 포함하는 것을 특징으로 하는 농업용 반사필름 제조방법이 공지되어 있다.In addition, in the method of manufacturing an agricultural reflective film formed by depositing an aluminum thin film layer on a base paper made of a synthetic resin film in Korea Patent Registration No. 10-1303934 (registration date September 05, 2013), OPP, CPP, PET, PE of a multilayer structure Forming an aluminum thin film layer on the base paper formed of at least one selected from films, and forming a protective layer on the aluminum thin film layer to prevent oxidation and gloss protection, increase strength and prevent wrinkles of the aluminum thin film, wherein the protective layer is zeolite, Protects at least one antimicrobial mineral selected from Cloisonne, Bentonite, Tourmaline, Germanium, Elvanite, Shell, Illite, Charcoal, Activated Carbon, Calcium Carbonate, Talc, Aluminum Hydroxide, Ocher, and Ceramic with granule size of 100 ~ 1000 mesh Characterized in that it comprises the step of forming a thickness of 0005 ~ 0100mm including 01 to 60% by weight relative to the weight of the layer It is known a method for producing agricultural-reflection film.

또한, 한국등록특허 10-1352952(등록일자 2014년01월20일)에 알루미늄 박막 및, 상기 알루미늄 박막의 표면에 위치하는 투명 필름으로 이루어지는 두께 0009~0030mm의 기재 필름; 및 상기 알루미늄 박막의 이면에 위치하며 천연펄프, 재생펄프 또는 이들의 혼합물인 섬유상 충전재와 생분해성 고분자 수지로 이루어지는 두께 0010~0100mm의 생분해성 연신 필름으로 구성되는 적층 구조를 가지며: 상기 기재필름이 알루미늄박막이 증착된 폴리에틸렌테레프탈레이트(PET) 필름, 연신 폴리프로필렌(OPP) 필름, 무연신 폴리프로필렌(CPP) 필름 또는 이들의 다층필름인 농업용 반사필름이 공지되어 있다.In addition, Korean Patent No. 10-1352952 (registered date January 20, 2014) in the base film having a thickness of 0009 ~ 0030mm made of an aluminum thin film, and a transparent film located on the surface of the aluminum thin film; And a laminated structure composed of a biodegradable stretched film having a thickness of 0010 to 0100 mm and formed of a fibrous filler, which is a natural pulp, recycled pulp, or a mixture thereof, and a biodegradable polymer resin. BACKGROUND ART Agricultural reflective films are known in which thin films are deposited polyethylene terephthalate (PET) films, stretched polypropylene (OPP) films, unstretched polypropylene (CPP) films or multilayer films thereof.

또한, 한국공개특허 10-2016-0019139(공개일자 2016년02월19일)에 롤 또는 시트 형태로 이루어지며, 폴리에틸렌 테레프탈레이트(PET) 투명 필름 또는 폴리프로필렌(OPP) 투명 필름 또는 고밀도폴리에틸렌(HDPE) 투명필름 또는 무연신 폴리프로필렌(CPP) 투명필름 중 선택된 어느 하나의 투명필름 일면에 알루미늄 박막이 형성된 농업용 반사 필름(40)에서 빛이 난반사가 될 수 있도록 하는 난반사 수단(10)이 농업용 반사 필름(40) 전체에 형성되는 것을 특징으로 하는 농업용 난반사 필름이 공지되어 있다.In addition, the Korean Patent Publication No. 10-2016-0019139 (published February 19, 2016) in the form of a roll or sheet, polyethylene terephthalate (PET) transparent film or polypropylene (OPP) transparent film or high density polyethylene (HDPE) The reflective reflection means 10 for allowing light to be diffusely reflected in the agricultural reflective film 40 having an aluminum thin film formed on one surface of a transparent film or a non-stretched polypropylene (CPP) transparent film. Agricultural diffuse reflection films are known which are formed throughout (40).

그러나, 상기 종래기술들은 다음과 같은 반사필름 종류별로 단점 또는 문제점이 있었다.However, the conventional techniques have disadvantages or problems by the following types of reflective film.

무코팅 반사필름으로 폴리에스테르 필름에 알루미늄박을 증착시킨 반사필름은 가격이 저렴한 장점이 있으나, 전도체인 반사필름이 바람에 찢어지고 날려서 전깃줄에 걸리면 정전이 되고 화재의 원인이 되며, 사용시 토양이나 물과 접촉하면 알루미늄층에 산화가 일어나 알루미늄 박막의 탈락이 쉽게 발생되고 강도와 연신율이 약해 필름의 강도가 떨어지는 단점이 있다.Reflective film deposited aluminum foil on polyester film with non-coated reflective film has the advantage of low cost, but when the reflective film, which is a conductor, is torn and blown in the wind and caught on the wire, it becomes a power failure and causes a fire. When it comes in contact with the aluminum layer, the aluminum layer is easily delaminated, and the strength and elongation of the aluminum film are weak.

또한, 현재 가장 많이 유통되고 있는 단면반사필름으로 연신폴리프로필렌OPP(OPP - Oriented Poly Propylene) 필름에 알루미늄박을 증착시킨 후 알루미늄박의 탈락을 방지하기 위해 저밀도 폴리에틸렌(LDPE)을 열로 녹여서 코팅하여 제조한 반사필름은 절연성이 보강되고 알루미늄박막의 부식(산화) 방지성은 개선되는 효과는 있으나, OPP와 LDPE사이의 연신율이 확연히 다르기 때문에 강도보완과 연신율을 위해 두껍게 코팅함에 따라 제조원가가 높아지는 단점이 있다.In addition, the most widely distributed single-sided reflective film is manufactured by depositing aluminum foil on a stretched polypropylene OPP (OPP-Oriented Poly Propylene) film and melting and coating low density polyethylene (LDPE) with heat to prevent the aluminum foil from falling off. One reflective film has an effect of improving insulation and preventing corrosion (oxidation) of the aluminum thin film, but since the elongation between OPP and LDPE is significantly different, manufacturing cost increases due to the thick coating for strength supplement and elongation.

또한, OPP에 알루미늄박막을 증착시킨 후 그 위에 비연신 폴리프로필렌(casting Polypropylent) 필름을 합지하여 제조한 양면반사필름은 연신과 강도보완의 장점은 있으나, 소재 코스트가 높아 비경제적인 단점이 있다.In addition, a double-sided reflective film manufactured by depositing an aluminum thin film on OPP and then laminating a non-stretched polypropylene (casting Polypropylent) film thereon has advantages of stretching and strength supplementation, but has a disadvantage of high economical cost.

또한, 유공반사필름으로 OPP 또는 CPP에 알루미늄막을 증착시킨 후 그위에 CPP (무연신 (casting polypropylene)나, HDPE를 합지하고 배수구멍을 펀칭처리한 반사필름은 비가 올 경우 배수구멍으로 빗물이 빠져 물이 고이는 현상을 해소시킬 수 있는 장점은 있으나, 제조원가가 높은 단점이 있다.In addition, after the aluminum film is deposited on OPP or CPP with a perforated reflective film, CPP (casting polypropylene) or HDPE is laminated on it, and the reflective film punched in the drainage holes. This pit has the advantage of eliminating the phenomenon, but has the disadvantage of high manufacturing cost.

또한, 폴리프로필렌 필름이나 폴리에스터 필름 또는 다른 합성수지로 구성된 필름 원단에 알루미늄 증착층이 구성되고, 이 알루미늄 증착면에 폴리에틸렌 또는 폴리프로필렌등의 합성수지로 코팅되어진 코팅층이 구성되며, 필름 표면에 양각과 음각으로 요철 돌기가 형성된 반사필름은 실제 사용함에 있어서 필름의 강도가 떨어지고 알루미늄이 산화되는 것으로 방지하고자 코팅 또는 다른 필름을 합지하여 사용하고 요철가공을 함으로써 제조공정이 복잡하고 제조비용이 상승되는 문제점이 있다.In addition, an aluminum deposition layer is formed on a film fabric composed of a polypropylene film, a polyester film, or another synthetic resin, and a coating layer coated with a synthetic resin such as polyethylene or polypropylene is formed on the aluminum deposition surface. Reflective film formed with bumps and projections has a problem in that the manufacturing process is complicated and the manufacturing cost is increased by using a coating or other film laminated and uneven processing in order to prevent the film's strength from falling and oxidizing aluminum in actual use. .

뿐만 아니라, 종래의 농업용 반사필름은 사용 후 회수 폐기가 잘 이루어지지 않아 토양오염의 요인이 되고 있어 이에 대한 해결책도 시급한 실정이다.In addition, the conventional agricultural reflective film is a waste of the soil after the recovery of the waste after use is not well made, the solution to this situation is urgently urgent.

[특허문헌 001] 한국등록특허 10-1229926(등록일자 2013년01월30일)[Patent Document 001] Korea Patent Registration 10-1229926 (Registration date January 30, 2013) [특허문헌 002] 한국등록특허 10-1303934(등록일자 2013년09월05일)[Patent Document 002] Korea Patent Registration 10-1303934 (Registration Date September 05, 2013) [특허문헌 003] 한국등록특허 10-1352952(등록일자 2014년01월20일)[Patent Document 003] Korea Patent Registration 10-1352952 (Registration date January 20, 2014) [특허문헌 004] 한국공개특허 10-2016-0019139(공개일자 2016년02월19일)[Patent Document 004] Korean Patent Publication 10-2016-0019139 (published February 19, 2016)

본 발명은 상기 종래 문제점들을 해결하기 위하여, 수확기의 농작물 또는 과수원 바닥에 깔아서 빛을 반사 또는 산란시켜 수확기의 농작물 또는 과실에 부족한 빛을 보충하여 고른 착색을 유도하고 당도를 높여 농작물 또는 과실의 상품성을 높이기 위하여 사용하는 농업용 반사필름으로서, 신장율과 강도가 우수하여 찢김에 대한 내구성이 향상되고, 토양내에서 생분해되어 폐반사필름의 문제점을 근본적으로 해결하며, 칼슘비료성분을 함유하여 농작물 또는 과실의 생장을 촉진할 수 있는 칼슘비료성분을 함유한 생분해성 농업용 반사필름을 제공하는 것을 해결하고자 하는 과제로 한다.The present invention, in order to solve the conventional problems, by laying on the crop or orchard bottom of the harvester to reflect or scatter light to compensate for the insufficient light on the crop or fruit of the harvester to induce even coloration and increase the sugar content of the crop or fruit As an agricultural reflective film used to increase, it has excellent elongation and strength to improve durability against tearing, and it is biodegradable in soil to fundamentally solve the problem of waste reflecting film, and contains calcium fertilizer to grow crops or fruits. To solve the problem to provide a biodegradable agricultural reflective film containing calcium fertilizer components that can promote.

본 발명은 상기 과제를 해결하기 위하여, 생분해성 베이스필름층과; 상기 생분해성 베이스필름층 상부에 적층되는 생분해성 반사필름층과; 상기 생분해성 베이스필름층 하부에 적층되는 생분해성 칼슘비료성분 서방필름층;을 포함하여 구성되는 칼슘비료성분을 함유한 생분해성 농업용 반사필름을 과제의 해결수단으로 한다.The present invention, in order to solve the above problems, and a biodegradable base film layer; A biodegradable reflective film layer laminated on the biodegradable base film layer; A biodegradable agricultural reflective film containing a calcium fertilizer component comprising a; biodegradable calcium fertilizer component sustained release film layer laminated under the biodegradable base film layer as a solution to the problem.

상기 생분해성 베이스필름층은 폴리락트산, 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지로 형성되는 것을 과제의 해결수단으로 한다.The biodegradable base film layer is polylactic acid, polybutylene adipate-co-terephthalate, polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adipate, poly Polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate-co- Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co-3- Solution to the problem is to be formed of at least one biodegradable resin selected from the group consisting of hydroxyhexanoate).

상기 생분해성 반사필름층은 폴리락트산(PLA), 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지에 펄파우더 및/또는 백운모파우더를 혼합하여 형성된 마스터 배치로 형성되는 것을 과제의 해결수단으로 한다.The biodegradable reflective film layer is polylactic acid (PLA), polybutylene adipate-co-terephthalate (polybutylene adipate-co-terephthalate), polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adi Pate, polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co The solution to the problem is to form a master batch formed by mixing a pearl powder and / or a dolomite powder with at least one biodegradable resin selected from the group consisting of -3-hydroxyhexanoate).

상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate)와, 폴리락트산(PLA)과, 난각분말과, 고온개시제와, 사슬연장제를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것을 과제의 해결수단으로 한다.The biodegradable calcium fertilizer component sustained release film layer is a mixture of polybutylene adipate-co-terephthalate, polylactic acid (PLA), eggshell powder, high temperature initiator, and chain extender. The solution to the problem is to form a compounded biodegradable resin.

상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate) 60 내지 80 중량부와, 폴리락트산(PLA) 5 내지 15 중량부와, 난각 분말 10 내지 20 중량부와, 고온개시제 0.1 내지 1.0 중량부와, 사슬 연장제(CHAIN EXTENDER) 1 내지 5.0 중량부를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것을 과제의 해결수단으로 한다.The biodegradable calcium fertilizer component sustained release film layer is 60 to 80 parts by weight of polybutylene adipate-co-terephthalate, 5 to 15 parts by weight of polylactic acid (PLA), eggshell powder 10 The solution of the problem is to form a compounded biodegradable resin by mixing 20 to 20 parts by weight, 0.1 to 1.0 parts by weight of a high temperature initiator, and 1 to 5.0 parts by weight of a chain extender.

상기 생분해성 수지의 컴파운딩 조건은 10 torr 미만의 진공하에 140 내지 200℃ 온도 범위에서 실시되는 것을 과제의 해결수단으로 한다.Compounding conditions of the biodegradable resin is to be carried out in a temperature range of 140 to 200 ℃ under a vacuum of less than 10 torr as a means of solving the problem.

상기 고온개시제는 벤조일퍼옥사이드, 디-3차-부틸퍼옥시헥사하이드로테레프탈레이트, 디-3차-부틸퍼옥시-3,3,5-트리메틸시클로헥산, 3차-부틸퍼벤조에이트, 및 디-3차-부틸퍼옥사이드로 이루어진 군으로부터 선택되는 하나 이상의 고온개시제인 것을 과제의 해결수단으로 한다.The high temperature initiators are benzoyl peroxide, di-tert-butylperoxyhexahydroterephthalate, di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butylperbenzoate, and di At least one high temperature initiator selected from the group consisting of -tert-butylperoxide is a solution to the problem.

상기 난각 분말은 입경이 800 메시인 것을 과제의 해결수단으로 한다.The eggshell powder has a particle size of 800 mesh as a means for solving the problem.

상기 컴파운딩된 생분해성 수지는 PE 왁스(폴리에틸렌왁스), 스테아린산칼슘, 스테아린산아연, 에틸렌비스스테아마이드, 미네랄오일, 및 글리세린으로 이루어진 군으로부터 선택된 하나 이상의 활제가 첨가되는 것을 과제의 해결수단으로 한다.The compounded biodegradable resin is to solve the problem that one or more lubricants selected from the group consisting of PE wax (polyethylene wax), calcium stearate, zinc stearate, ethylene bis steamide, mineral oil, and glycerin is added.

상기 사슬 연장제는 에폭시기를 함유한 글리시딜메타아크릴레이트인 것을 과제의 해결수단으로 한다.The chain extender is a glycidyl methacrylate containing an epoxy group.

본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름은 수확기의 농작물 또는 과수원 바닥에 깔아서 빛을 반사 또는 산란시켜 수확기의 농작물 또는 과실에 부족한 빛을 보충하여 고른 착색을 유도하고 당도를 높여 농작물 또는 과실의 상품성을 높이기 위하여 사용하는 농업용 반사필름으로서, 신장율과 강도가 우수하여 찢김에 대한 내구성이 향상되고, 토양내에서 생분해되어 폐반사필름의 문제점을 근본적으로 해결하며, 비료성분을 함유하여 농작물 또는 과실의 생장을 촉진할 수 있는 매우 우수한 효과가 있다.Biodegradable agricultural reflective film containing a calcium fertilizer component of the present invention by laying down on the crop or orchard bottom of the harvester to reflect or scatter light to supplement the light lacking in the crop or fruit of the harvester to induce even coloration and increase the sugar content of the crop or It is an agricultural reflecting film used to increase the marketability of fruit. It has excellent elongation and strength to improve the durability against tearing, and it is biodegradable in soil to fundamentally solve the problem of the waste reflecting film. It has a very good effect of promoting fruit growth.

도 1은 본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름의 구조를 나타내는 단면도1 is a cross-sectional view showing the structure of a biodegradable agricultural reflective film containing a calcium fertilizer component of the present invention

본 발명은 상기 과제를 해결하기 위하여, 생분해성 베이스필름층과; 상기 생분해성 베이스필름층 상부에 적층되는 생분해성 반사필름층과; 상기 생분해성 베이스필름층 하부에 적층되는 생분해성 칼슘비료성분 서방필름층;을 포함하여 구성되는 칼슘비료성분을 함유한 생분해성 농업용 반사필름을 기술구성의 특징으로 한다.The present invention, in order to solve the above problems, and a biodegradable base film layer; A biodegradable reflective film layer laminated on the biodegradable base film layer; Biodegradable agricultural reflective film containing a calcium fertilizer component comprising a; biodegradable calcium fertilizer component sustained release film layer laminated under the biodegradable base film layer is characterized by a technical configuration.

상기 생분해성 베이스필름층은 폴리락트산, 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지로 형성되는 것을 기술구성의 특징으로 한다.The biodegradable base film layer is polylactic acid, polybutylene adipate-co-terephthalate, polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adipate, poly Polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate-co- Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co-3- It is characterized by the technical configuration that is formed of at least one biodegradable resin selected from the group consisting of hydroxyhexanoate).

상기 생분해성 반사필름층은 폴리락트산(PLA), 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지에 펄파우더 및/또는 백운모파우더를 혼합하여 형성된 마스터 배치로 형성되는 것을 기술구성의 특징으로 한다.The biodegradable reflective film layer is polylactic acid (PLA), polybutylene adipate-co-terephthalate (polybutylene adipate-co-terephthalate), polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adi Pate, polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co It is characterized by a technical configuration that is formed in a master batch formed by mixing a pearl powder and / or a dolomite powder with at least one biodegradable resin selected from the group consisting of -3-hydroxyhexanoate).

상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate)와, 폴리락트산(PLA)과, 난각분말과, 고온개시제와, 사슬연장제를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것을 기술구성의 특징으로 한다.The biodegradable calcium fertilizer component sustained release film layer is a mixture of polybutylene adipate-co-terephthalate, polylactic acid (PLA), eggshell powder, high temperature initiator, and chain extender. It is characterized by the technical configuration that is formed of compounded biodegradable resin.

상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate) 60 내지 80 중량부와, 폴리락트산(PLA) 5 내지 15 중량부와, 난각 분말 10 내지 20 중량부와, 고온개시제 0.1 내지 1.0 중량부와, 사슬 연장제(CHAIN EXTENDER) 1 내지 5.0 중량부를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것을 기술구성의 특징으로 한다.The biodegradable calcium fertilizer component sustained release film layer is 60 to 80 parts by weight of polybutylene adipate-co-terephthalate, 5 to 15 parts by weight of polylactic acid (PLA), eggshell powder 10 To 20 parts by weight, a high temperature initiator 0.1 to 1.0 parts by weight, and 1 to 5.0 parts by weight of a chain extender (CHAIN EXTENDER) is formed of a compounded biodegradable resin is characterized by a technical configuration.

상기 생분해성 수지의 컴파운딩 조건은 10 torr 미만의 진공하에 140 내지 200℃ 온도 범위에서 실시되는 것을 기술구성의 특징으로 한다.Compounding conditions of the biodegradable resin is characterized in that the technical configuration is carried out in a temperature range of 140 to 200 ℃ under a vacuum of less than 10 torr.

상기 고온개시제는 벤조일퍼옥사이드, 디-3차-부틸퍼옥시헥사하이드로테레프탈레이트, 디-3차-부틸퍼옥시-3,3,5-트리메틸시클로헥산, 3차-부틸퍼벤조에이트, 및 디-3차-부틸퍼옥사이드로 이루어진 군으로부터 선택되는 하나 이상의 고온개시제인 것을 기술구성의 특징으로 한다.The high temperature initiators are benzoyl peroxide, di-tert-butylperoxyhexahydroterephthalate, di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butylperbenzoate, and di At least one high temperature initiator selected from the group consisting of -tert-butylperoxide is characterized by the technical construction.

상기 난각 분말은 입경이 800 메시인 것을 기술구성의 특징으로 한다.The eggshell powder is characterized by a technical configuration that the particle diameter is 800 mesh.

상기 컴파운딩된 생분해성 수지는 PE 왁스(폴리에틸렌왁스), 스테아린산칼슘, 스테아린산아연, 에틸렌비스스테아마이드, 미네랄오일, 및 글리세린으로 이루어진 군으로부터 선택된 하나 이상의 활제가 첨가되는 것을 기술구성의 특징으로 한다.The compounded biodegradable resin is characterized in that the technical composition is one or more lubricants selected from the group consisting of PE wax (polyethylene wax), calcium stearate, zinc stearate, ethylene bis steamide, mineral oil, and glycerin.

상기 사슬 연장제는 에폭시기를 함유한 글리시딜메타아크릴레이트인 것을 기술구성의 특징으로 한다.The chain extender is characterized in that it is a glycidyl methacrylate containing an epoxy group.

이하에서는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예 및 도면을 통하여 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시예 및 도면에 한정되지 않는다.Hereinafter will be described in detail with reference to the embodiments and drawings of the present invention so that those skilled in the art can easily practice. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[도 1]을 참조하여 설명하면, 본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름(10)은 생분해성 베이스필름층(11)과; 상기 생분해성 베이스필름층(11) 상부에 적층되는 생분해성 반사필름층(12)과; 상기 생분해성 베이스필름층(11) 하부에 적층되는 생분해성 칼슘비료성분 서방필름층(13);을 포함하여 구성된다. Referring to FIG. 1, the biodegradable agricultural reflective film 10 containing the calcium fertilizer component of the present invention includes a biodegradable base film layer 11; A biodegradable reflective film layer 12 stacked on the biodegradable base film layer 11; And a biodegradable calcium fertilizer component sustained release film layer 13 stacked below the biodegradable base film layer 11.

이때, 상기 생분해성 베이스필름층(11)은 폴리락트산, 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지로 형성될 수 있다.In this case, the biodegradable base film layer 11 is polylactic acid, polybutylene adipate-co-terephthalate, polycaprolactone, polyglycolic acid, polybutylene succinate, polybutyl Lene adipate, polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxy Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate, poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate) -co-3-hydroxyhexanoate) can be formed of one or more biodegradable resins selected from the group consisting of.

한편, 본 발명에서 반사성능을 위해 종래 알루미늄박 필름층을 대체하기 위한 기술로서, 상기 생분해성 반사필름층은 폴리락트산(PLA), 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지에 펄파우더 및/또는 백운모파우더를 혼합하여 형성된 마스터 배치로 형성되는 것이 기술구성의 특징이다On the other hand, as a technology for replacing the conventional aluminum foil film layer in the present invention for the reflective performance, the biodegradable reflective film layer is polylactic acid (PLA), polybutylene adipate-co-terephthalate (polybutylene adipate-co- terephthalate), polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adipate, polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV) , Polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate-co-3-hydroxyvalerate, poly-3-hydroxy It is formed by mixing pearl powder and / or dolomite powder with at least one biodegradable resin selected from the group consisting of poly- (3-hydroxybutyrate-co-3-hydroxyhexanoate). Is formed from a master batch is characteristic of the technology configuration

상기 펄파우더 및/또는 백운모파우더는 반사도료 안료로 사용되는 것으로 다양한 반사광들을 반사하는 효과를 나타내며, 상기 생분해성 수지가 생분해될 때까지 반사성능을 발휘할 수 있으며, 펄파우더와 백운모파우더를 각각 따로 사용할 수 있으며, 혼합하여 사용할 수도 있다.The pearl powder and / or dolomite powder are used as reflecting pigments to exhibit various reflecting light effects, and may exhibit reflecting performance until the biodegradable resin is biodegraded, and the pearl powder and dolomite powder may be used separately. It can also be used in combination.

또한, 상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate)와, 폴리락트산(PLA)과, 난각분말과, 고온개시제와, 사슬연장제를 혼합하여 컴파운딩된 생분해성 수지로 형성된다.In addition, the biodegradable calcium fertilizer component sustained release film layer is polybutylene adipate-co-terephthalate, polylactic acid (PLA), egg shell powder, high temperature initiator, chain extender It is formed into a compounded biodegradable resin by mixing.

특히, 상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate) 60 내지 80 중량부와, 폴리락트산(PLA) 5 내지 15 중량부와, 난각 분말 10 내지 20 중량부와, 고온개시제 0.1 내지 1.0 중량부와, 사슬 연장제(CHAIN EXTENDER) 1 내지 5.0 중량부를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것이 바람직하다.In particular, the biodegradable calcium fertilizer component sustained release film layer is 60 to 80 parts by weight of polybutylene adipate-co-terephthalate, 5 to 15 parts by weight of polylactic acid (PLA), eggshell 10 to 20 parts by weight of the powder, 0.1 to 1.0 parts by weight of the high temperature initiator, and 1 to 5.0 parts by weight of the chain extender (CHAIN EXTENDER) are preferably mixed to form a compounded biodegradable resin.

상기 생분해성 수지의 컴파운딩 조건은 10 torr 미만의 진공하에 140 내지 200℃ 온도 범위에서 실시된다.Compounding conditions of the biodegradable resin is carried out in the temperature range of 140 to 200 ℃ under a vacuum of less than 10 torr.

이때, 상기 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate)가 60 중량부 미만일 경우 필름의 인열강도가 현저히 저하될 수 있으며, 80중량부를 초과할 경우 필름의 냉각성이 저하되어 생산성이 낮아지는 문제가 있다.In this case, when the polybutylene adipate-co-terephthalate is less than 60 parts by weight, the tear strength of the film may be remarkably lowered. There is a problem that the productivity is lowered.

상기 폴리락트산(PLA)은 10 중량부 미만일 경우 폴리락트산의 장점인 인장강도, 냉각성, 투명도 개선의 효과를 기대하기 어려우며, 20 중량부를 초과할 경우 폴리락트산의 단점인 인열강도 및 연성의 저하로 필름의 품질을 저하시킬 수 있다. 폴리락트산은 이성질체를 가지며, L-, D- 또는 DL-형태의 락트산 단위를 주성분으로 하는 중합체이며 본 발명에서 사용되는 폴리락트산은 D-락트산의 단독중합체 또는 L- 및 D-락트산의 공중합체일 수도 있다.When the polylactic acid (PLA) is less than 10 parts by weight, it is difficult to expect the effect of improving the tensile strength, cooling properties, transparency of the advantages of polylactic acid, and when it exceeds 20 parts by weight due to the decrease in tear strength and ductility, which is a disadvantage of polylactic acid The quality of a film can be reduced. Polylactic acid has isomers and is a polymer based on lactic acid units in the L-, D- or DL- form and the polylactic acid used in the present invention is a homopolymer of D-lactic acid or a copolymer of L- and D-lactic acid. It may be.

상기 난각분말은 20 중량부를 초과할 경우 필름의 인장강도의 저하와 성형성 및 생산성이 떨어지는 결과를 초래할 수 있으며 10 중량부 이하일 경우 칼슘비료로서의 기능성이 저하된다.When the eggshell powder exceeds 20 parts by weight, the tensile strength of the film may be reduced, and moldability and productivity may be reduced. When the eggshell powder is 10 parts by weight or less, the functionality as a calcium fertilizer is lowered.

뿐만 아니라, 상기 난각 분말로는 800 메시의 작은 입자를 사용하며, 이는 생분해성 수지와의 분산성면에서 유리한데, 아울러, 난각 분말이 매트릭스를 이루는 PBAT/PLA수지에 분산이 잘 되지 않고 입자들끼리 뭉치면 최종 가공된 필름의 강도가 떨어질 수 있어 이를 보완하기 위해 활제를 사용할 수 있으며 활제로서는 스테아린산칼슘, 스테아린산아연, 에틸렌비스스테아마이드, 미네랄오일, 글리세린 등을 사용할 수 있다.In addition, as the eggshell powder, small particles of 800 mesh are used, which is advantageous in terms of dispersibility with the biodegradable resin, and the particles are not well dispersed in the PBAT / PLA resin in which the eggshell powder forms a matrix. When agglomerates, the strength of the final processed film may be reduced, and a lubricant may be used to compensate for this. As the lubricant, calcium stearate, zinc stearate, ethylene bis steamide, mineral oil, and glycerin may be used.

특히, 본 발명의 상기 생분해성 칼슘비료성분 서방필름층은 본 발명의 반사필름의 보강 및 인장탄성을 보강하기 위한 것으로, 폴리락트산의 장점인 인장강도와 냉각성 등을 살리고 단점인 타 수지와의 상용성, 점탄성을 향상시키기 위해 퍼옥사이드 계통의 고온개시제를 사용한다.In particular, the biodegradable calcium fertilizer component sustained release film layer of the present invention is to reinforce the reinforcement and tensile elasticity of the reflective film of the present invention, utilizing the advantages of polylactic acid tensile strength and cooling, and commercially compatible with other disadvantages High temperature initiator of peroxide type is used to improve the property and viscoelasticity.

상기 고온개시제는 150℃ 이상의 고온에서 빠르게 라디칼을 형성하여 폴리락트산의 라디칼 반응을 유도하여 사슬의 연장이 이루어지고 이로 인해 수지의 점탄성(melt elasticity)이 향상되어 필름의 물성, 특히 폴리락트산의 단점인 인열강도가 향상되는 효과가 있다. The high temperature initiator rapidly forms radicals at a high temperature of 150 ° C. or higher to induce a radical reaction of polylactic acid, thereby extending chains, thereby improving melt elasticity of the resin, thereby deteriorating physical properties of the film, particularly polylactic acid. The tear strength is improved.

상기 고온개시제의 종류로는 벤조일 퍼옥사이드, 디-3차-부틸퍼옥시헥사하이드로테레프탈레이트, 디-3차-부틸퍼옥시-3,3,5-트리메틸시클로헥산, 3차-부틸퍼벤조에이트, 디-3차-부틸퍼옥사이드 등이 있으며, 그 첨가량은 0.1 내지 1.0중량부 사용하는 것이 바람직하다. Examples of the high-temperature initiators include benzoyl peroxide, di-tert-butylperoxyhexahydroterephthalate, di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butylperbenzoate And di-tert-butyl peroxide, and the addition amount thereof is preferably 0.1 to 1.0 parts by weight.

상기 사슬 연장제(CHAIN EXTENDER)로는 에폭시기를 함유한 글리시딜메타아크릴레이트를 1.0 내지 5.0 중량부 사용하며, 1.0중량부 미만일 경우 사슬연장제로서의 효과가 미미하며 5.0중량부 초과할 경우 겔(GEL)화 현상이 발생하여 오히려 필름의 강도를 저하시킬 수 있다.As the chain extender, 1.0 to 5.0 parts by weight of glycidyl methacrylate containing an epoxy group is used, and when it is less than 1.0 part by weight, the effect as a chain extender is insignificant and the gel is greater than 5.0 parts by weight. The phenomenon of cavitation may occur and rather reduce the intensity | strength of a film.

또한, 본 발명에는 물성 저하를 막기 위해 필요에 따라 당해 기술분야에서 통용되는 첨가제가 혼합될 수도 있다. 이러한 첨가제에는, 열안정제, 산화방지제, 자외선 안정제등이 있다.In addition, in the present invention, additives commonly used in the art may be mixed as necessary in order to prevent deterioration of physical properties. Such additives include thermal stabilizers, antioxidants, ultraviolet stabilizers and the like.

열안정제로는 트리페닐포스페이트, 트리메틸포스페이트 등이 사용가능하고, 산화방지제로는 페놀계 산화방지제가 있으며, 자외선 안정제로는 아민기를 가지는 HALS계 화합물이 있다.As the thermal stabilizer, triphenyl phosphate, trimethyl phosphate and the like can be used, and antioxidants include phenolic antioxidants, and UV stabilizers include HALS compounds having an amine group.

상기의 본 발명의 필름은 원료 성분을 이축압출기에 투입하여 반응압출시, 압출 온도는 약 140℃ 내지 200℃의 범위에서 수행한다. 압출온도가 140℃ 미만일경우에는 고온개시제의 분해속도가 느려지며 반응활성이 떨어져서 물성 향상이 제대로 이루어지지 않을 수 있으며, 또한 수지의 점성이 증가하여 난각의 분산성이 저하될 수 있다. 압출온도가 200℃를 초과할 경우 수지의 탄화가 발생하여 필름 제조시 변색 및 물성저하가 발생한다. 컴파운딩 과정에서 진공을 10토르(torr)미만으로 걸어 난각의 수분 및 첨가제로부터 발생하는 개스를 제거하는 것이 중요하며 그렇지 않을 경우 수지의 발포현상이 발생되어 생산성 저하와 물성 저하를 유발할 수 있다.In the film of the present invention, the raw material component is added to a twin screw extruder, and when the reaction is extruded, the extrusion temperature is carried out in the range of about 140 ℃ to 200 ℃. When the extrusion temperature is less than 140 ℃ the decomposition rate of the high temperature initiator is slow and the reaction activity may be poorly improved physical properties, and also the viscosity of the resin may increase the dispersion of eggshells may be lowered. When the extrusion temperature exceeds 200 ℃ carbonization of the resin occurs, discoloration and deterioration of properties occur during film production. In the compounding process, it is important to remove the gas generated from the moisture and additives of the egg shell by applying a vacuum to less than 10 torr, otherwise foaming of the resin may occur, which may cause productivity and physical property deterioration.

[생분해성수지 베이스필름층용 수지 조성물의 제조][Production of resin composition for biodegradable resin base film layer]

용융온도가 160 ℃인 폴리락트산 수지(Nature Works LLC, 4032D)를 열풍건조기로 110 ℃에서 3시간 건조하여 수분을 제거한 후, 온도가 220 ℃인 압출기로 용융 압출하여 수지조성물을 제조하였다.After melting the polylactic acid resin (Nature Works LLC, 4032D) having a melting temperature of 160 ℃ for 3 hours at 110 ℃ with a hot air dryer to remove moisture, the resin composition was melt-extruded with an extruder having a temperature of 220 ℃.

[생분해성수지 반사필름층용 수지 조성물의 제조][Production of Resin Composition for Biodegradable Resin Reflective Film Layer]

용융온도가 160 ℃인 폴리락트산 수지(Nature Works LLC, 4032D)를 열풍건조기로 110 ℃에서 3시간 건조하여 수분을 제거한 후, 온도가 220 ℃인 압출기로 용융하면서 펄파우더 및 백운모파우더 혼합 파우더를 수지 10kg 대하여 30kg 혼합하여 용융 압출하여 수지조성물을 제조하였다.The polylactic acid resin (Nature Works LLC, 4032D) having a melting temperature of 160 ° C. was dried at 110 ° C. for 3 hours using a hot air dryer to remove moisture, and then melted with an extruder having a temperature of 220 ° C. to mix the powder of pearl powder and dolomite powder. The resin composition was prepared by melting and extruding 30 kg with respect to 10 kg.

[생분해성 칼슘비료성분 서방필름층용 수지 조성물의 제조][Production of Resin Composition for Biodegradable Calcium Fertilizer Component Sustained Film Layer]

PBAT 6kg와 PLA 2kg, 벤조일퍼옥사이드 10g, 난각 분말 2kg, 글리시딜메타크릴레이트 50g, 스테아린산칼슘 30g을 슈퍼믹서(super mixer)를 이용하여 10분간 혼합한 후, 작업온도 180℃에서 이축 압출기를 이용하여 10 토르 미만의 진공하에서 300rpm의 회전속도로 용융 압출하여 수지조성물을 제조하였다.After mixing 6 kg of PBAT, 2 kg of PLA, 10 g of benzoyl peroxide, 2 kg of eggshell powder, 50 g of glycidyl methacrylate, and 30 g of calcium stearate using a super mixer for 10 minutes, the twin screw extruder was operated at a working temperature of 180 ° C. The resin composition was prepared by melt extrusion at a rotational speed of 300 rpm under a vacuum of less than 10 Torr.

[본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름의 제조][Production of biodegradable agricultural reflective film containing calcium fertilizer component of the present invention]

상기 [실시예 1]에서 제조한 수지조성물을 블로운 필름 성형기를 이용하여 40㎛ 두께의 베이스필름을 제조하고, 상기 베이스필름 상하부에 각각 [실시예 2] 및 [실시예 3]에서 제조한 수지조성물을 30㎛두께로 코팅, 경화하여 본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름을 제조하고, 인장강도, 신장율, 생분해율을 측정하고 그 결과를 [표 1]에 나타내었다.The resin composition prepared in [Example 1] was used to prepare a base film having a thickness of 40 μm using a blown film molding machine, and the resins prepared in [Example 2] and [Example 3] above and below the base film, respectively. The composition was coated and cured to a thickness of 30 μm to prepare a biodegradable agricultural reflective film containing the calcium fertilizer component of the present invention. The tensile strength, elongation rate, and biodegradation rate were measured, and the results are shown in [Table 1].

(1) 인장강도 및 신장율(1) Tensile strength and elongation

인장시험기를 이용하여, 온도 23℃, 척간 80mm, 표선간 25mm, 인장속도 200mm/분의 조건에서 반사필름이 파단될 때까지의 최대강도 및 신장율을 반사필름의 길이방향(MD), 폭방향(TD) 시료 각각 5개를 각각 시험하여 평균치를 구하였다.Using a tensile tester, the maximum strength and elongation until breakage of the reflective film under conditions of temperature 23 ° C., 80 mm between chucks, 25 mm between marks, and 200 mm / min of tensile speed were obtained. TD) Five samples were each tested and the average value was obtained.

(2) 생분해율(2) biodegradation rate

KS M3100-1(2003)에 의해 180일간 측정한 생분해도 값의 표준 물질과의 비를 하기 수학식 1에 따라 계산하였다.The ratio of the biodegradability value measured with KS M3100-1 (2003) for 180 days to the standard substance was calculated according to the following Equation 1.

[수학식 1][Equation 1]

생분해율 (%) = (시료의 생분해도) / (표준 물질의 생분해도) × 100Biodegradation rate (%) = (biodegradability of sample) / (biodegradability of standard substance) × 100

인장강도
(kgf/15*80mm)
The tensile strength
(kgf / 15 * 80mm)
신장율(%)(15mm*50mm)Elongation (%) (15mm * 50mm) 생분해율
(%)
Biodegradation rate
(%)
MDMD TDTD 실시예 1Example 1 4.54.5 7272 3636 9292

상기 [표 1]에 나타난 바와 같이, 본 발명의 칼슘비료성분을 함유한 생분해성 농업용 반사필름은 인장강도, 신장율 및 생분해율에 있어서 우수한 것을 확인할 수 있다.As shown in Table 1, it can be seen that the biodegradable agricultural reflective film containing the calcium fertilizer component of the present invention is excellent in tensile strength, elongation and biodegradation rate.

이상의 설명은 본 발명의 기술사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서, 본 발명에 개시된 실시예 및 도면들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예 및 도면에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments and the drawings disclosed in the present invention are not intended to limit the technical spirit of the present invention but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the drawings. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10 : 반사필름 11 : 생분해성 베이스필름층
12 : 생분해성 반사필름층 13 : 칼슘비료성분 서방필름층
10 reflective film 11: biodegradable base film layer
12: biodegradable reflective film layer 13: calcium fertilizer component sustained release film layer

Claims (10)

생분해성 베이스필름층과; 상기 생분해성 베이스필름층 상부에 적층되는 생분해성 반사필름층과; 상기 생분해성 베이스필름층 하부에 적층되는 생분해성 칼슘비료성분 서방필름층;을 포함하여 구성되는 칼슘비료성분을 함유한 생분해성 농업용 반사필름으로서,
상기 생분해성 베이스필름층은 폴리락트산, 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지로 형성되고,
상기 생분해성 반사필름층은 폴리락트산(PLA), 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate), 폴리카프로락톤, 폴리글리콜산, 폴리부틸렌석시네이트, 폴리부틸렌아디페이트, 폴리하이드록시부티레이트(polyhydroxybutyrate, PHB), 폴리-3-하이드록시발러레이트(poly-3-hydroxyvalerate, PBV), 폴리하이드록시부티레이트발러레이트(polyhydroxybutyrate valerate, PHBV), 폴리-3-하이드록시부티레이트-코-3-하이드록시발러레이트(poly-(3-hydroxybutyrate-co-3-hydroxyvalerate), 폴리-3-하이드록시부티레이트-코-3-하이드록시헥사노에이트(poly-(3-hydroxybutyrate-co-3-hydroxyhexanoate)로 이루어진 군에서 선택되는 1종 이상의 생분해성 수지에 펄파우더 및/또는 백운모파우더를 혼합하여 형성된 마스터 배치로 형성되며,
상기 생분해성 칼슘비료성분 서방필름층은 폴리부틸렌아디페이트-코-테레프탈레이트(polybutylene adipate-co-terephthalate) 60 내지 80 중량부와, 폴리락트산(PLA) 5 내지 15 중량부와, 난각 분말 10 내지 20 중량부와, 고온개시제 0.1 내지 1.0 중량부와, 사슬 연장제(CHAIN EXTENDER) 1 내지 5.0 중량부를 혼합하여 컴파운딩된 생분해성 수지로 형성되는 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
A biodegradable base film layer; A biodegradable reflective film layer laminated on the biodegradable base film layer; As a biodegradable agricultural reflective film containing a calcium fertilizer component comprising a; biodegradable calcium fertilizer component sustained release film layer laminated under the biodegradable base film layer,
The biodegradable base film layer is polylactic acid, polybutylene adipate-co-terephthalate, polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adipate, poly Polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate-co- Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co-3- hydroxyhexanoate) formed of one or more biodegradable resins selected from the group consisting of
The biodegradable reflective film layer is polylactic acid (PLA), polybutylene adipate-co-terephthalate (polybutylene adipate-co-terephthalate), polycaprolactone, polyglycolic acid, polybutylene succinate, polybutylene adi Pate, polyhydroxybutyrate (PHB), poly-3-hydroxyvalerate (PBV), polyhydroxybutyrate valerate (PHBV), poly-3-hydroxybutyrate Poly- (3-hydroxybutyrate-co-3-hydroxyvalerate), poly-3-hydroxybutyrate-co-3-hydroxyhexanoate (poly- (3-hydroxybutyrate-co -3-hydroxyhexanoate) is formed as a master batch formed by mixing the pearl powder and / or dolomite powder with at least one biodegradable resin selected from the group consisting of
The biodegradable calcium fertilizer component sustained release film layer is 60 to 80 parts by weight of polybutylene adipate-co-terephthalate, 5 to 15 parts by weight of polylactic acid (PLA), eggshell powder 10 To 20 parts by weight, 0.1 to 1.0 parts by weight of the high temperature initiator, and 1 to 5.0 parts by weight of the chain extender (CHAIN EXTENDER) by mixing the biodegradable containing calcium fertilizer component, characterized in that formed from a compounded biodegradable resin Agricultural Reflective Film
삭제delete 삭제delete 삭제delete 삭제delete 제1항에 있어서,
상기 생분해성 수지의 컴파운딩 조건은 10 torr 미만의 진공하에 140 내지 200℃ 온도 범위에서 실시되는 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
The method of claim 1,
Compounding conditions of the biodegradable resin is a biodegradable agricultural reflective film containing a calcium fertilizer component, characterized in that carried out at a temperature range of 140 to 200 ℃ under a vacuum of less than 10 torr
제1항에 있어서,
상기 고온개시제는 벤조일퍼옥사이드, 디-3차-부틸퍼옥시헥사하이드로테레프탈레이트, 디-3차-부틸퍼옥시-3,3,5-트리메틸시클로헥산, 3차-부틸퍼벤조에이트, 및 디-3차-부틸퍼옥사이드로 이루어진 군으로부터 선택되는 하나 이상의 고온개시제인 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
The method of claim 1,
The high temperature initiators are benzoyl peroxide, di-tert-butylperoxyhexahydroterephthalate, di-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butylperbenzoate, and di Biodegradable agricultural reflective film containing a calcium fertilizer component, characterized in that at least one high temperature initiator selected from the group consisting of-tert-butyl peroxide
제1항에 있어서,
상기 난각 분말은 입경이 800 메시인 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
The method of claim 1,
The eggshell powder is a biodegradable agricultural reflective film containing a calcium fertilizer component, characterized in that the particle size of 800 mesh
제1항에 있어서,
상기 컴파운딩된 생분해성 수지는 PE 왁스(폴리에틸렌왁스), 스테아린산칼슘, 스테아린산아연, 에틸렌비스스테아마이드, 미네랄오일, 및 글리세린으로 이루어진 군으로부터 선택된 하나 이상의 활제가 첨가되는 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
The method of claim 1,
The compounded biodegradable resin is a calcium fertilizer component, characterized in that at least one lubricant selected from the group consisting of PE wax (polyethylene wax), calcium stearate, zinc stearate, ethylene bis steamide, mineral oil, and glycerin is added. Biodegradable agricultural reflective film
제1항에 있어서,
상기 사슬 연장제는 에폭시기를 함유한 글리시딜메타아크릴레이트인 것을 특징으로 하는 칼슘비료성분을 함유한 생분해성 농업용 반사필름
The method of claim 1,
The chain extender is a biodegradable agricultural reflective film containing a calcium fertilizer component, characterized in that the glycidyl methacrylate containing an epoxy group
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KR102629468B1 (en) * 2023-03-13 2024-01-30 주식회사 슈니테크 Conchocelis culture film for laver farming and culture method of conchocelis using the same
KR20240039716A (en) 2022-09-20 2024-03-27 김건한 Manufacturing method of Resin for biodegradable agricultural mulching vinyl which contains essential fertilizer.

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JP2005000035A (en) * 2003-06-10 2005-01-06 Sekisui Chem Co Ltd Biodegradable resin sheet
KR101229926B1 (en) 2010-01-15 2013-02-05 삼창산업 주식회사 Reflection Film for Cultivating Plant
KR101303934B1 (en) 2011-05-12 2013-09-12 금건수 Method for manufacturing reflecting film for agriculture and the film thereby
KR101352952B1 (en) 2012-07-30 2014-02-21 (주)농협아그로 Reflection film for cultivating plant and method for producing it
KR20160019139A (en) 2014-08-11 2016-02-19 (주)에코팜 Diffuse farming film and method of manufacturing the diffuse film

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JP2005000035A (en) * 2003-06-10 2005-01-06 Sekisui Chem Co Ltd Biodegradable resin sheet
KR101229926B1 (en) 2010-01-15 2013-02-05 삼창산업 주식회사 Reflection Film for Cultivating Plant
KR101303934B1 (en) 2011-05-12 2013-09-12 금건수 Method for manufacturing reflecting film for agriculture and the film thereby
KR101352952B1 (en) 2012-07-30 2014-02-21 (주)농협아그로 Reflection film for cultivating plant and method for producing it
KR20160019139A (en) 2014-08-11 2016-02-19 (주)에코팜 Diffuse farming film and method of manufacturing the diffuse film

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240039716A (en) 2022-09-20 2024-03-27 김건한 Manufacturing method of Resin for biodegradable agricultural mulching vinyl which contains essential fertilizer.
KR102629468B1 (en) * 2023-03-13 2024-01-30 주식회사 슈니테크 Conchocelis culture film for laver farming and culture method of conchocelis using the same

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