KR100579534B1 - Red mulching film with anti-insect effect - Google Patents

Red mulching film with anti-insect effect Download PDF

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KR100579534B1
KR100579534B1 KR1019990003319A KR19990003319A KR100579534B1 KR 100579534 B1 KR100579534 B1 KR 100579534B1 KR 1019990003319 A KR1019990003319 A KR 1019990003319A KR 19990003319 A KR19990003319 A KR 19990003319A KR 100579534 B1 KR100579534 B1 KR 100579534B1
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red
mulching film
film
density polyethylene
agent
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KR20000054942A (en
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홍명선
김경현
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삼성토탈 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256—Ground coverings
    • A01G13/0268—Mats or sheets, e.g. nets or fabrics
    • A01G13/0275—Films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene

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Abstract

본 발명은 병충해 방지 효과를 갖는 적색 멀칭필름에 관한 것으로서, 보다 상세하게는 뿌리혹 선충의 생장을 억제하기 위해 자외선 산란제와 적색 파장 발생 보광제를 첨가하여 제조되는 것을 특징으로 하는 적색 멀칭필름에 관한 것이다.The present invention relates to a red mulching film having a pest prevention effect, and more particularly, to a red mulching film, which is prepared by adding an ultraviolet scattering agent and a red wavelength generating light absorbing agent to suppress the growth of root-knot nematodes. will be.

Description

병충해 방지 효과를 갖는 적색 멀칭필름{RED MULCHING FILM WITH ANTI-INSECT EFFECT}RED MULCHING FILM WITH ANTI-INSECT EFFECT}

본 발명은 병충해 방지 효과를 갖는 적색 멀칭필름에 관한 것으로서, 보다 상세하게는 뿌리혹 선충의 생장을 억제하기 위해 자외선 안정제와 적색 파장 발생 보광제를 첨가하여 제조되는 것을 특징으로 하는 적색 멀칭필름에 관한 것이다.The present invention relates to a red mulching film having a pest prevention effect, and more particularly, to a red mulching film, which is prepared by adding an ultraviolet stabilizer and a red wavelength generating light-retaining agent to suppress the growth of root-knot nematodes. .

일반적으로 농업용 멀칭필름은 농작물의 뿌리를 덮어 줌으로써 지온 상승효과로 동절기 농작물의 동사를 방지하고 토양내 수분 증발을 억제하여 농작물의 재배를 용이하게 하는 제품으로, 기존에는 짚 등이 사용되어 왔으나 80년대 중반 이후 폴리에틸렌 필름으로 대체 사용되고 있다. 이러한 멀칭필름은 지온의 보온 효과, 토양내 보양, 보수 효과 이외에 지표면의 빛을 차단함으로써 바이러스, 진딧물과 같은 해충을 제거하는 기능을 지니고 있다. In general, agricultural mulching film covers the roots of crops, which prevents the verbs of winter crops and suppresses the evaporation of water in the soil with a synergistic effect, and straw has been used since 80s. It has been used as a polyethylene film since the middle. The mulching film has a function of removing pests such as viruses and aphids by blocking the light on the surface in addition to the warming effect of geothermal, remediation in the soil, and repair effect.

기존에 이미 개발된 멀칭필름으로는 원색 멀칭필름, 흑색 멀칭필름, 배색 멀칭필름, 흑·백색 멀칭필름, 은회색 멀칭필름, 산파 멀칭필름 등이 있으며 이들 각각의 기능 및 제품구조는 다음과 같다.Previously developed mulching films include primary mulching films, black mulching films, color mulching films, black and white mulching films, silver gray mulching films, and midwife mulching films.These functions and product structures are as follows.

Figure 111999000750653-pat00001
Figure 111999000750653-pat00001

상기의 농업용 멀칭필름은 원색 또는 흑·백색의 필름으로 그린하우스 또는 옥외경작지에서 재배되는 농작물의 기상조건을 적절하게 조절해주기 위해 농작물의 성장환경에 적합한 햇빛을 공급하기 위한 차광효과와, 흡열을 방지하고 야간이나 동절기에 보온효과를 유지하며 과습에 의한 병충해 발생을 억제하는 기능을 한다.The agricultural mulching film is a primary color or black and white film to prevent the heat absorbing effect, and endothermic to provide adequate sunlight to the growing environment of the crop in order to appropriately control the weather conditions of the crop grown in the green house or outdoor farmland It keeps warm effect at night or winter and suppresses the occurrence of pests caused by over-humidity.

한편, 지금까지 토양중의 뿌리혹 선충을 죽이기 위해서는 메틸브로마이드 등과 같은 독성 살충제를 사용하였으나 살충제에 의한 방법은 살충제 살포시, 또한 식용으로 사용시 인체에 유해할 뿐만 아니라 농작물에도 살충제에 대한 내성 증가 및 토양의 산성화를 유발하여 농작물의 지속적인 수확에도 악영향을 미친다.On the other hand, toxic insecticides such as methyl bromide have been used to kill root-knot nematodes in the soil. However, the insecticide method is not only harmful to the human body when spraying insecticides and when used for food, but also increases resistance to insecticides on crops and acidification of soil. It also adversely affects the continuous harvest of crops.

따라서 본 발명의 목적은 상기와 같은 문제점을 해결하기 위하여 자외선 산란제와 적색 파장 발생 보광제를 적용하여 농작물의 병충해 피해중 가장 심각한 것으로 보고된 뿌리혹 선충의 생장을 억제할 수 있고, 지표면 또는 지상줄기에서 성장하는 과일, 채소 등의 생육을 증가시킬 수 있는 적색 멀칭필름을 제공하는 것이다. Therefore, the object of the present invention can suppress the growth of root-knot nematode reported to be the most serious of the pest damage of crops by applying an ultraviolet scattering agent and a red wavelength generating light-reducing agent to solve the above problems, surface surface or ground stem It is to provide a red mulching film that can increase the growth of fruits, vegetables, and the like.

본 발명의 병충해 방지 효과를 갖는 적색 멀칭필름은 자외선 산란제와 적색 파장 발생 보광제가 함유된 것을 특징으로 한다.Red mulching film having a pest prevention effect of the present invention is characterized in that it contains an ultraviolet scattering agent and a red wavelength generating light-retaining agent.

본 발명의 필름은 단층 또는 2층 이상으로 구성될 수 있는데, 이하에서는 단층으로 이루어지는 필름을 일예로 들어 본 발명을 설명하기로 한다.The film of the present invention may be composed of a single layer or two or more layers. Hereinafter, the present invention will be described by taking a film composed of a single layer as an example.

본 발명은 그린하우스 또는 옥외재배지용 필름에 일반 멀칭필름에 첨가되는 첨가제 이외에 자외선 산란제와 적색광을 반사하는 적색 파장 발생 보광제를 첨가하여 농작물의 수확을 증가시키고 병해를 감소시킬 수 있는 적색 멀칭필름을 제공하는 것으로서, 필름은 단층 또는 2층 이상으로 구성한다.The present invention, in addition to the additives added to the general mulching film to the green house or outdoor culture film, a red mulching film that can increase the yield of crops and reduce the disease by adding an ultraviolet scattering agent and a red wavelength generating light reflecting agent reflecting red light In providing the film, the film is composed of a single layer or two or more layers.

본 발명에 따른 적색 멀칭필름에 있어서, 기본 수지로는 용융지수(MI)가 0.1∼2.0g/10분, 밀도가 0.920∼0.928g/㎤인 저밀도 폴리에틸렌(LDPE), MI가 0.1∼3.0g/10분, 밀도가 0.920∼0.936g/㎤인 선형 저밀도 폴리에틸렌(LLDPE), LDPE/LLDPE의 혼합체 또는 MI가 0.01∼2.0g/10분, 밀도가 0.940∼0.965g/㎤인 고밀도 폴리에틸렌(HDPE)이 바람직하다. In the red mulching film according to the present invention, the basic resin is a low density polyethylene (LDPE) having a melt index (MI) of 0.1 to 2.0 g / 10 minutes, a density of 0.920 to 0.928 g / cm 3, and a MI of 0.1 to 3.0 g /. 10 minutes, linear low density polyethylene (LLDPE) with a density of 0.920 to 0.936 g / cm 3, a mixture of LDPE / LLDPE or a high density polyethylene (HDPE) with a density of 0.01 to 2.0 g / 10 minutes and a density of 0.940 to 0.965 g / cm 3 desirable.

본 발명에 따른 적색 멀칭필름에 있어서, 자외선 산란제는 기본수지 100중량부에 대하여 1∼2중량부, 적색 파장 발생 보광제는 1∼5중량부 첨가되는 것이 바람직하며, 이때 자외선 산란제 대 적색 파장 발생 보광제의 중량비는 1:1.0∼5.0인 것이 바람직하다. 이 범위를 벗어나면 병충해 방지효과가 저하된다.In the red mulching film according to the present invention, it is preferable that the ultraviolet scattering agent is added in an amount of 1 to 2 parts by weight based on 100 parts by weight of the base resin, and 1 to 5 parts by weight of the red wavelength generating light absorbing agent, wherein the ultraviolet scattering agent is red. It is preferable that the weight ratio of a wavelength generating light modifier is 1: 1.0-5.0. Outside this range, the pest prevention effect is lowered.

본 발명의 필름에는 상기 성분 이외에 통상의 첨가제로서 산화 방지제, 자외선 흡수제 등이 사용될 수 있다. In the film of the present invention, antioxidants, ultraviolet absorbers and the like may be used as usual additives in addition to the above components.

자외선 산란제와 적색 파장 발생 보광제가 함유된 본 발명의 적색 멀칭필름을 사용할 경우 농작물의 병충해 피해중 가장 심각한 것으로 보고된 뿌리혹 선충이 기존 흑색 멀칭필름 대비 50% 이상 억제되었다.When using the red mulching film of the present invention containing an ultraviolet scattering agent and a red wavelength generating light-retaining agent, root-knot nematodes, which are reported to be the most serious of pest damage of crops, were suppressed by more than 50% compared to the existing black mulching film.

이하 실시예 및 비교예를 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail through Examples and Comparative Examples.

실시예Example

필름은 단층으로 구성되며 기본수지와 첨가제로서 농업용 멀칭필름의 기본처방제인 자외선 흡수제, 산화방지제 이외에 자외선 산란제와 적색 파장 발생 보광제로 구성되어 있다. The film consists of a single layer, and is composed of an ultraviolet scattering agent and a red wavelength generating light-retaining agent in addition to the ultraviolet absorber and antioxidant, which are basic prescriptions of agricultural mulching film, as basic resin and additive.

이들의 상세내역은 하기 표 2에 나타나 있다.Their details are shown in Table 2 below.

건식혼합기에 기본수지, 산화방지제 1과 2, 자외선 흡수제, 자외선 산란제, 적색 파장 발생 보광제를 넣고 30분 혼합한 후 다시 압출 혼합기에 넣고 용융 혼합시켰다. 이 용융 혼합체를 펠렛형태로 만든후 필름 성형기에 넣고 필름 성형후 관련 성능평가 시험을 하였다. 결과는 표 3과 같다.In a dry mixer, the basic resin, antioxidants 1 and 2, ultraviolet absorber, ultraviolet scattering agent, and red wavelength generating light absorbing agent were mixed for 30 minutes, and then mixed in an extrusion mixer and melt mixed. The molten mixture was pelletized and placed in a film molding machine, and then subjected to a performance evaluation test after film molding. The results are shown in Table 3.

비교예Comparative example

필름은 단층으로 구성되며 기본수지는 HDPE로 구성되어 있고, 첨가제로는 농업용 멀칭필름의 기본 처방제인 자외선 흡수제, 산화방지제, 흑색안료로 구성되어 있다. 실시예와 동일하게 필름을 성형하여 성능평가시험을 하였다. 결과는 표 3에 나타내었다.
[표 2] (단위: 중량부)
구분 HDPE 산화 방지제1 산화 방지제2 자외선 흡수제 자외선 산란제 적색파장 발생보광제 실시예 1 100 0.05 0.05 0.2 1 1 실시예 2 100 0.05 0.05 0.2 1 2 실시예 3 100 0.05 0.05 0.2 1 3 실시예 4 100 0.05 0.05 0.2 1 5 실시예 5 100 0.05 0.05 0.2 2 2 LDPE 산화 방지제1 산화 방지제2 자외선 흡수제 자외선 산란제 적색파장 발생보광제 실시예 6 100 0.05 0.05 0.2 1 1 실시예 7 100 0.05 0.05 0.2 1 2 실시예 8 100 0.05 0.05 0.2 1 3 실시예 9 100 0.05 0.05 0.2 1 5 실시예 10 100 0.05 0.05 0.2 2 2 실시예 11 100 0.05 0.05 0.2 2 5 LLDPE 산화 방지제1 산화 방지제2 자외선 흡수제 자외선 산란제 적색파장 발생보광제 실시예 12 100 0.05 0.05 0.2 1 1 실시예 13 100 0.05 0.05 0.2 1 2 실시예 14 100 0.05 0.05 0.2 1 3 실시예 15 100 0.05 0.05 0.2 1 5 실시예 16 100 0.05 0.05 0.2 2 2 LDPE LLDPE 산화 방지제1 산화 방지제2 자외선 흡수제 자외선 산란제 적색파장 발생보광제 실시예 17 70 30 0.05 0.05 0.2 1 1 실시예 18 70 30 0.05 0.05 0.2 1 2 실시예 19 70 30 0.05 0.05 0.2 1 3 실시예 20 70 30 0.05 0.05 0.2 1 5 실시예 21 70 30 0.05 0.05 0.2 2 2 The film consists of a single layer, the basic resin is composed of HDPE, and the additive is composed of UV absorbers, antioxidants, and black pigments, which are the basic prescriptions of agricultural mulching films. The film was molded in the same manner as in Example to perform a performance evaluation test. The results are shown in Table 3.
[Table 2] (Unit: parts by weight)
division HDPE Antioxidants1 Antioxidants2 UV absorbers UV Scatter Red wavelength generating supplement Example 1 100 0.05 0.05 0.2 One One Example 2 100 0.05 0.05 0.2 One 2 Example 3 100 0.05 0.05 0.2 One 3 Example 4 100 0.05 0.05 0.2 One 5 Example 5 100 0.05 0.05 0.2 2 2 LDPE Antioxidants1 Antioxidants2 UV absorbers UV Scatter Red wavelength generating supplement Example 6 100 0.05 0.05 0.2 One One Example 7 100 0.05 0.05 0.2 One 2 Example 8 100 0.05 0.05 0.2 One 3 Example 9 100 0.05 0.05 0.2 One 5 Example 10 100 0.05 0.05 0.2 2 2 Example 11 100 0.05 0.05 0.2 2 5 LLDPE Antioxidants1 Antioxidants2 UV absorbers UV Scatter Red wavelength generating supplement Example 12 100 0.05 0.05 0.2 One One Example 13 100 0.05 0.05 0.2 One 2 Example 14 100 0.05 0.05 0.2 One 3 Example 15 100 0.05 0.05 0.2 One 5 Example 16 100 0.05 0.05 0.2 2 2 LDPE LLDPE Antioxidants1 Antioxidants2 UV absorbers UV Scatter Red wavelength generating supplement Example 17 70 30 0.05 0.05 0.2 One One Example 18 70 30 0.05 0.05 0.2 One 2 Example 19 70 30 0.05 0.05 0.2 One 3 Example 20 70 30 0.05 0.05 0.2 One 5 Example 21 70 30 0.05 0.05 0.2 2 2

※ 상기 표 2에 있어서,※ In Table 2 above,

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산화방지제 1 : 메틸렌(3,5-디 터셔리-부틸-4-하이드록시 페닐)프로 Antioxidant 1: Methylene (3,5-di-tert-butyl-4-hydroxy phenyl)

피오네이트 Cypionate

산화방지제 2 : 디 터셔리-부틸-하이드록시 톨루엔Antioxidant 2: Dietary-Butyl-hydroxy toluene

자외선 흡수제 : 테트라메틸-피페리디닐-세바케이트UV absorbers: tetramethyl-piperidinyl-sebacate

자외선 산란제 : 이산화티탄UV Scatter: Titanium Dioxide

적색 파장 발생 보광제 : 벤즈피닐리움-스퀴아릴리움Red wavelength-generating light absorbent: benzpinillium-squiaryllium

상기 실시예 및 비교예에 대한 성능평가는 하기 표 3과 같다.
[표 3]
적색파장 반사율 뿌리혹 선충 생장율(%) 비교예 100(기준) 100(기준) 100(기준) 실시예 1 220 140 67 실시예 2 350 140 59 실시예 3 440 140 54 실시예 4 510 140 49 실시예 5 350 150 57 실시예 6 230 130 69 실시예 7 360 130 61 실시예 8 450 130 56 실시예 9 500 130 52 실시예 10 340 150 58 실시예 11 500 150 47 실시예 12 210 140 69 실시예 13 320 140 63 실시예 14 410 140 57 실시예 15 490 140 52 실시예 16 330 140 61 실시예 17 210 130 71 실시예 18 320 130 65 실시예 19 410 130 65 실시예 20 480 130 55 실시예 21 340 140 58
※ 상기 표 3에 있어서,Performance evaluation of the Examples and Comparative Examples are shown in Table 3 below.
TABLE 3
Red wavelength reflectivity Root-knot nematode growth rate (%) Comparative example 100 (standard) 100 (standard) 100 (standard) Example 1 220 140 67 Example 2 350 140 59 Example 3 440 140 54 Example 4 510 140 49 Example 5 350 150 57 Example 6 230 130 69 Example 7 360 130 61 Example 8 450 130 56 Example 9 500 130 52 Example 10 340 150 58 Example 11 500 150 47 Example 12 210 140 69 Example 13 320 140 63 Example 14 410 140 57 Example 15 490 140 52 Example 16 330 140 61 Example 17 210 130 71 Example 18 320 130 65 Example 19 410 130 65 Example 20 480 130 55 Example 21 340 140 58
※ In Table 3 above,

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1) 뿌리혹 선충 생장율%는 비교예 1의 생장율%를 100으로 기준시 1) Root-knot nematode growth rate is based on 100% growth rate of Comparative Example 1

상대 생장율%임% Relative growth

2) 적색파장과 반사율은 자외선 분광기(Ultra-Violet Spectroscopy)로 측정2) Red wavelength and reflectance measured by Ultra-Violet Spectroscopy

3) 뿌리혹 선충 생장률은 JIS Z2911방법으로 측정3) Root-knot nematode growth rate measured by JIS Z2911

이상의 실시예 및 비교예에서 볼 수 있는 바와 같이 본 발명에 의하여 제조된 적색 멀칭필름은 자외선 산란제와 적색 파장 발생 보광제를 첨가하여 병충해 방지효과가 상당히 향상된 것이다.As can be seen in the above examples and comparative examples, the red mulching film produced by the present invention is a significantly improved pest prevention effect by the addition of an ultraviolet scattering agent and a red wavelength generating light-retaining agent.

Claims (4)

단층 또는 2층 이상으로 구성되는 멀칭필름에 있어서, 기본수지 100중량부에 대하여 자외선 산란제 1∼2중량부와 적색 파장 발생 보광제 1∼5중량부가 첨가되어 이루어지며, 상기 자외선 산란제 대 적색 파장 발생 보광제의 중량비는 1:1.0∼5.0인 것을 특징으로 하는 뿌리혹 선충 방지용 적색 멀칭필름.In the mulching film composed of a single layer or two or more layers, 1 to 2 parts by weight of an ultraviolet scattering agent and 1 to 5 parts by weight of a red wavelength generating light absorbing agent are added to 100 parts by weight of the basic resin, and the ultraviolet scattering agent is red. A root mulch nematode prevention red mulching film, characterized in that the weight ratio of the wavelength-generating light-retaining agent is 1: 1.0 to 5.0. 제 1항에 있어서, 기본수지는 용융지수가 0.1∼2.0g/10분, 밀도가 0.920∼0.928g/㎤인 저밀도 폴리에틸렌, 용융지수가 0.1∼3.0g/10분, 밀도가 0.920∼0.936g/㎤인 선형 저밀도 폴리에틸렌, 상기 저밀도 폴리에틸렌과 상기 선형 저밀도 폴리에틸렌의 혼합체 또는 용융지수가 0.01∼2.0g/10분, 밀도가 0.940∼0.965g/㎤인 고밀도 폴리에틸렌인 것을 특징으로 하는 적색 멀칭필름.A low density polyethylene having a melt index of 0.1 to 2.0 g / 10 minutes, a density of 0.920 to 0.928 g / cm 3, a melt index of 0.1 to 3.0 g / 10 minutes, and a density of 0.920 to 0.936 g / A red mulching film comprising a linear low density polyethylene having a cm 3, a mixture of the low density polyethylene and the linear low density polyethylene, or a high density polyethylene having a melt index of 0.01 to 2.0 g / 10 minutes and a density of 0.940 to 0.965 g / cm 3. 삭제delete 제 1항에 있어서, 산화방지제와 자외선 흡수제가 더 첨가된 것을 특징으로 하는 적색 멀칭필름.The red mulching film of claim 1, wherein an antioxidant and an ultraviolet absorber are further added.
KR1019990003319A 1999-02-02 1999-02-02 Red mulching film with anti-insect effect KR100579534B1 (en)

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