KR20010108532A - Air permeability film packing bag and in the method for agricultural products packing - Google Patents
Air permeability film packing bag and in the method for agricultural products packing Download PDFInfo
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- KR20010108532A KR20010108532A KR1020000028930A KR20000028930A KR20010108532A KR 20010108532 A KR20010108532 A KR 20010108532A KR 1020000028930 A KR1020000028930 A KR 1020000028930A KR 20000028930 A KR20000028930 A KR 20000028930A KR 20010108532 A KR20010108532 A KR 20010108532A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/02—Wrappers or flexible covers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
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- 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
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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
- 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
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- Materials Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
이 발명은 인플레인션 필름 제조 공정에서 포장대용 폴리에틸렌 필름을 성형함에 있어서, 폴리올레핀계 수지 50중량비와 탄산칼슘, 황산바륨, 탈크 및 실리카, 견운모 중에서 선택한 하나 이상의 무기 첨가재 5~70중량비를 혼합 용융하여 통기성 필름 원료 혼합수지를 얻고, 이 혼합수지로서 2겹의 인프레이션 필름으로 제조하고 연속하여 인플레이션 필름을 1.1배 이상으로 1축 연신함이 특징인 농산물 및 식품포장용 통기성 필름 포장대 및 그 제조방법을 제공한다. 이발명에 의하면 상기와 같이 이 발명은 통기성 필름으로 농산물을 포장했을 때 농산물에서 방출되는 부패가스를 외부로 배출하여 신선도를 오래 유지할 수 있도록 농산물 및 식품 포장용 통기성 폴리에틸렌 필름 포장대를 제공하고, 동시에 이 발명은 인플레이션 필름제조 과정에서 얻어진 필름을 연속된 공정에서 1축 연신하여 통기성 필름 포장대를 얻는 것이다.In the present invention, in molding a polyethylene film for packaging in an inflation film manufacturing process, 50 to 70 parts by weight of polyolefin resin and 5 to 70 parts by weight of at least one inorganic additive selected from calcium carbonate, barium sulfate, talc and silica, and mica are mixed and melted. A breathable film packaging material for producing agricultural products and food packaging, characterized by obtaining a breathable film raw material mixed resin, which is made of two-ply inflation film, and continuously uniaxially stretched the inflation film by 1.1 times or more. to provide. According to the present invention, as described above, the present invention provides a breathable polyethylene film packaging stand for agricultural products and food packaging so as to maintain the freshness by discharging the decay gas emitted from the agricultural products to the outside when the agricultural products are packaged with a breathable film. The invention is to uniaxially stretch the film obtained in the inflation film production process in a continuous process to obtain a breathable film packaging stand.
Description
이 발명은 농산물 및 식품포장용 통기성 필름 포장대 및 그 제법을 제공하려는 것이다.The present invention aims to provide a breathable film packaging stand for agricultural products and food packaging, and a method of manufacturing the same.
종래 할인매장, 수퍼마켓, 가정에서 농산물 및 식품포장용 폴리에틸렌 필름 포장대가 다량 사용되고 있다.Conventionally, polyethylene film packaging stands for agricultural products and food packaging have been used in discount stores, supermarkets, and homes.
할인매장에는 절취선에서 끊기도록 되어있는 롤 상의 포장대가 비치되어있어 농산물 구매자나 판매자가 포장대를 하나씩 분리하여 농산물이나 식품을 포장한다.가정용으로 사용되는 폴리에틸렌 필름 포장대는 종이상자에 100매씩 포장하여 위생팩, 그린팩등의 품상명으로 판매되고 있다.The discount store is equipped with a roll-shaped packing stand that is cut off from the perforation line, so that the buyer or seller of agricultural products separates the packing stand one by one to pack the produce or food. It is sold in product names such as green pack.
종래 위와 같은 포장용 필름을 제조하기 위한 장치를 도1에 도시하였다. 도1을 참조하면 인플레인션 필름 제조장치는 압출기(1)에서 용융된 폴리에틸렌 필름을 원형 다이스(2)를 통해 튜브상 필름(3)으로 성형하고, 튜브상 필름(3) 내에 공기를 넣어 부풀린 다음 튜브의 내면 3,4 가 맞 닿게 필름을 롤상으로 권취하는 것이고, 이와 같이 얻어진 필름에 용착부과 절취선을 조성하여 포장대로 사용 하는 것이다.Conventionally, an apparatus for manufacturing a packaging film as described above is shown in FIG. Referring to FIG. 1, the inflation film manufacturing apparatus forms a polyethylene film melted in an extruder 1 into a tubular film 3 through a circular die 2 and inflate with air in the tubular film 3. Next, the film is wound into a roll so that the inner surfaces 3 and 4 of the tube touch each other, and a welded portion and a cut line are formed on the film thus obtained and used as a packaging.
본 발명은 이와 같은 폴리에틸렌 필름 포장대를 통기성 필름으로 바꿔주어 폴리에틸렌 필름으로 포장되는 농산물 및 식품의 신선도를 오래 유지시켜주고, 이로써 건강한 식생활에 도움을 얻고자 하는 것이다.The present invention is intended to maintain the freshness of agricultural products and foods packaged with a polyethylene film for a long time by replacing such a polyethylene film packaging stand with a breathable film, thereby obtaining a healthy diet.
통기성 필름으로 농산물을 포장했을 때 농산물에서 방출되는 부패가스를 외부로 배출할 수 있어 신선도를 오래 유지할 수 있다. 이 발명은 이와 같은 점을 농산물 및 식품포장대에 적용하여 신선도를 오래 보존 할 수 있는 농산물 및 식품 포장용 통기성 폴리에틸렌 필름 포장대를 제공함에 목적이 있다.When packing agricultural products with a breathable film, the perishable gas emitted from agricultural products can be discharged to the outside to maintain freshness for a long time. The object of the present invention is to provide a breathable polyethylene film packaging stand for agricultural products and food packaging that can be applied to the agricultural and food packaging stand to preserve the freshness for a long time.
이 발명은 인플레이션 필름제조 과정에서 얻어진 필름을 연속된 공정에서 1축 연신하여 통기성 필름 포장대를 얻는 방법을 제안함에 목적이 있다.An object of the present invention is to propose a method of obtaining a breathable film package by uniaxially stretching a film obtained in the process of producing an inflation film in a continuous process.
도1은 종래 인플레이션 필름 제조 장치도1 is a conventional inflation film manufacturing apparatus diagram
도2는 이 발명 포장대의 1축 연신장치도Figure 2 is a uniaxial drawing device of this invention packaging stand
<도면 주요 부호의 설명><Description of Drawing Major Symbols>
1:압출기 2:다이스 3:필름1: Extruder 2: Dice 3: Film
본 발명은 상기와 같이 인플레인션 필름 제조 공정에서 포장대용 폴리에틸렌 필름을 성형함에 있어서, 압출기에 통기성 필름 원료를 넣고 4,5번이 닿게하여 롤 상태로 권취한 다음 2겹의 필름을 연속하여 일축 연신시켜 튜브형 통기성 필름을 얻고 상기와 같이 포장대가 되도록 용착부를 형선한 후 절취선을 조성하거나 절단하여 농산물 및 식품 포장용 통기성 포장대로 사용하는 것이다.In the present invention, in forming the polyethylene film for the packaging in the inflation film manufacturing process as described above, putting the breathable film raw material into the extruder and wound in a roll state to reach 4, 5 times and then uniaxially rolled two layers of film Stretching to obtain a tubular breathable film to form a welding portion to form a packaging as described above, and then to form or cut the cut line to use as a breathable packaging for agricultural products and food packaging.
이와 달리 통기성 필름 포장대를 제조하는 방법으로 압출기(1)에 통기성필름 원료를 넣고 용융된 재료를 원형 필름으로 압출한다음 2겹의 원형 필름을 1겹이 되게 길이방향으로 절개하여 1겹 필름을 롤 상으로 권취하고, 이어서 1축 연신하여 필름에 통기 셀을 조성하고, 포장대 형태로 절단 및 용착하여 통기성 필름을 얻는 것이다.On the other hand, the method of manufacturing a breathable film packaging stand by inserting the breathable film raw material into the extruder (1) and extruding the molten material into a round film, and then cut the two-ply circular film in a longitudinal direction to make a single layer of a single layer film It winds up on a roll, and then uniaxially stretches, forms a ventilation cell in a film, cut | disconnects and welds in the form of a package, and obtains a breathable film.
현재 사용되고 있는 폴리에틸렌 포장대의 원료로는 고밀도 폴리에틸렌이 사용되고 있다. 이와 같은 고밀도 폴리에틸렌 필름으로 포장대를 만들면 필름 강도가 좋아져서 얇은 두께에서도 많은 중량의 내용물을 담을 수 있고 내구성이 좋은 이점이 있다.High density polyethylene is used as a raw material of the polyethylene packaging currently used. When the packaging table is made of such a high density polyethylene film, the film strength is improved, so that a large amount of contents can be contained even in a thin thickness, and the durability is good.
그러나 일축연신시 고밀도 폴리에틸렌 필름은 신장율이 좋지않는 결점이 있고 통기성 필름의 원료에 포함되는 탄산칼??, 황산바륨, 탈크, 실리카, 견운모 등의 무기물질이 수지의 분산능력을 감소시키는 문제점이 있다.However, when uniaxial stretching, the high-density polyethylene film has a drawback of poor elongation, and inorganic materials such as Calcium Carbonate, Barium Sulfate, Talc, Silica, and Cicada, which are included in the raw material of the breathable film, reduce the dispersibility of the resin. .
따라서 본 발명은 고밀도 폴리에틸렌수지를 사용하지 않고 선형 저밀도 폴리에틸렌을 주로 사용하여 통기성 폴리에틸렌 필름 포장대를 제조하였다.Therefore, the present invention manufactured a breathable polyethylene film packaging using mainly linear low density polyethylene without using a high density polyethylene resin.
이 발명 통기성 필름의 제조 원리는 끝에 이중결합이 있어 자유롭게 중합할 수 있는 올레핀계 수지, 구체적으로 폴리에틸렌·폴리프로필렌·폴리이소부틸렌(합성고무로서 소량의 이소프렌과 혼성중합하여 제품으로 만든다) 50중량비에 대하여 탄산칼슘, 황산바륨, 탈크 및 실리카, 견운모 중에서 선택한 하나 이상의 무기 첨가재 5~70중량비를 혼합 용융하여 통기성 필름 원료 혼합수지를 얻고, 이 혼합수지로서 2겹의 인프레이션 필름으로 제조하고, 인플레이션 필름을 1.1배 이상으로 1축 연신하여 농산물 및 식품포장용 통기성 필름을 얻는다.The production principle of the breathable film of the present invention is an olefinic resin which can freely polymerize with a double bond at the end, specifically polyethylene, polypropylene, polyisobutylene (composite polymerization with a small amount of isoprene as a synthetic rubber to make a product) 50 weight ratio 5 to 70 weight ratios of at least one inorganic additive selected from calcium carbonate, barium sulfate, talc and silica, and biotite are mixed and melted to obtain a breathable film raw material mixed resin, which is prepared as a two-ply inflation film and inflation. The film is uniaxially stretched 1.1 times or more to obtain a breathable film for agricultural products and food packaging.
위와 같이 폴리올레핀계 수지와 무기물을 사용하여 통기성 필름을 제조할 때에는 폴리올레핀계 수지에 대하여 비상용성인 수지를 첨가하여 통기도를 향상할 수 있다.When manufacturing a breathable film using a polyolefin resin and an inorganic material as described above, it is possible to improve the air permeability by adding an incompatible resin to the polyolefin resin.
상기와 같은 원료를 사용하여 일축연신시에는 무기물 또는 폴리올레핀계수지와 비상용성 수지의 계면에 미세한 기공이 형성되며 이 기공을 통해 통기가 이루어진다.At the time of uniaxial stretching using the raw materials as described above, fine pores are formed at the interface between the inorganic material or the polyolefin resin and the incompatible resin, and the air is vented through the pores.
폴리올레핀계수지와 비상용성인 수지로는 폴리스티렌, 스틸렌, 모노머공중합물, 나일론, 나일론일레스토머, 폴리에스터, 폴리에스터일레스토머, PBT(폴리에스테르계의 열가소성 수지), PMMA 등의 수지가 있다.Incompatible resins with polyolefin resins include resins such as polystyrene, styrene, monomer copolymers, nylon, nylon elastomers, polyesters, polyester elastomers, PBT (polyester-based thermoplastic resins), and PMMA.
또한 이 발명은 폴리 올레핀계 수지 100중량비에 대하여 녹는점 100℃ 이상인 폴리머를 1~30중량비 혼합하여도 통기성 필름을 얻을 수 있다.Moreover, this invention can obtain a breathable film even if it mixes 1-30 weight ratio of polymers with melting | fusing point 100 degreeC or more with respect to 100 weight ratio of polyolefin resin.
도3은 연신롤의 예를 인용하였다 롤 a,b는 예열롤, 롤 c,d,e는 연신롤, 롤f,g는 숙성롤이다. 예열롤을 40~120℃로 예열되어 필름을 연신에 필요한 온도로 가열하고, 연신후에 연신시 필름에 주어진 스트레스를 해소하기위한 숙성롤 f,g는 상온을 유지한다. 연신롤 c의 표면 스피드를 20m/min 로하고 연신롤e의 표면속도를 40m/min로하면 필름은 안내롤d를 지나면서 2배의 연신이 이루어진다.Fig. 3 quotes an example of a stretching roll. Rolls a and b are preheat rolls, rolls c, d and e are stretching rolls and rolls f and g are aged rolls. The preheat roll is preheated to 40-120 ° C. to heat the film to the temperature necessary for stretching, and the aging rolls f, g for releasing the stress given to the film during stretching are maintained at room temperature. When the surface speed of the stretching roll c is set to 20 m / min and the surface speed of the stretching roll e is set to 40 m / min, the film is doubled while passing through the guide roll d.
이 발명의 실시 예에서 통기성 필름의 원료는 상기 필름 성형용 폴리머와 무기 첨가재를 콤파운딩머신(트윈스크류 압출기)을 사용하였고, 통기성 필름의 통기도는 공기 투과도의 측정이 어려운 관계로 수분투과도 측정기로 ASTM E-96에서 수분투과도 측정하였다.In the embodiment of the present invention, as the raw material of the breathable film, a compounding machine (twin screw extruder) was used as the polymer for forming the film and the inorganic additive, and the air permeability of the breathable film was difficult to measure air permeability. Moisture permeability was also measured in E-96.
<실시예 1><Example 1>
탄산칼슘 30중량비, 선형 저밀도 폴리에틸렌 50중량비, 고밀도 폴리에틸렌 70중량비로 트윈스크류 압출기에서 혼합 용융하여 얻는 콤파운드를 인플레인션 필름성형기에서 두께 40㎛인 2겹의 필름으로 성형하고, 연신기에서 2배로 일축연신하여 두께 20㎛의 두겹 통기성 필름을 얻었다.Compounds obtained by mixing and melting in a twin screw extruder at 30 weight ratios of calcium carbonate, 50 weight ratios of linear low density polyethylene, and 70 weight ratios of high density polyethylene are molded into a double-layer film having a thickness of 40 μm in an inflation film molding machine, and uniaxially doubled in a stretching machine. Stretching was carried out to obtain a double breathable film having a thickness of 20 µm.
필름형성 인플레인션 필름성형기의 압출온도는 180℃, 700℃, 240℃, 250℃, 240℃ 5층으로 하였다.The extrusion temperature of the film forming inflation film molding machine was 180 ° C, 700 ° C, 240 ° C, 250 ° C, and 240 ° C in five layers.
이와 같이 얻어진 두께 20㎛, 폭 30mm의 2겹 필름을 400mm길이The two-layer film having a thickness of 20 μm and a width of 30 mm thus obtained was 400 mm long.
<실시예 2><Example 2>
탄산칼슘 40중량비, 선형저밀도 폴리에틸렌 60중량비, 고밀도폴리에틸렌 10중량비로 하여 실시예 1의 방법으로 통기성 필름을 얻었다.The breathable film was obtained by the method of Example 1 by setting it as 40 weight ratio of calcium carbonate, 60 weight ratio of linear low density polyethylene, and 10 weight ratio of high density polyethylene.
<실시예 3><Example 3>
탄산칼슘 50중량비, 선형저밀도 폴리에틸렌 50중량비, 고밀도폴리에틸렌 10중량비로 하여 실시예 1의 방법으로 통기성 필름을 얻었다.The breathable film was obtained by the method of Example 1 by setting it as 50 weight ratio of calcium carbonate, 50 weight ratio of linear low density polyethylene, and 10 weight ratio of high density polyethylene.
<실시예 4><Example 4>
탄산칼슘 35중량비, 실리카 5중량비, 견운모 5중량비, 황산바륨 5중량비, 탈크 5중량비, 선형저밀도 폴리에틸렌 50중량비, 고밀도 폴리에틸렌 70중량비로 하여 실시예 1의 방법으로 통기성 필름을 얻었다.The breathable film was obtained by the method of Example 1 by setting it as 35 weight ratio of calcium carbonate, 5 weight ratio of silica, 5 weight ratio of hard mica, 5 weight ratio of barium sulfate, 5 weight ratio of talc, 50 weight ratio of linear low density polyethylene, and 70 weight ratio of high density polyethylene.
<실시예 5>Example 5
탄산칼슘 40중량비, 선형저밀도 폴리에틸렌 60중량비, 고밀도폴리에틸렌 10중량비, 폴리에스터일레스토머 0.5중량비, HIPS 0.5중량비, 나일론 0.5 중량비로 하여 실시예 1의 방법으로 통기성 필름을 얻었다.The breathable film was obtained by the method of Example 1 as 40 weight ratio of calcium carbonate, 60 weight ratio of linear low density polyethylene, 10 weight ratio of high density polyethylene, 0.5 weight ratio of polyester elastomer, 0.5 weight ratio of HIPS, and 0.5 weight ratio of nylon.
<관능실험><Sensory experiment>
상기 실시예 1,2,3,4,5 에서 얻은 폴리에틸린 포장대와 비통기성 폴리에틸린 포장대에 사과 5개씩 넣어 밀봉하고 금년 5월 상온에서 3일을 방치한 후 사과를 꺼내어 냄새와 향을 관능검사 하였다.Five apples were placed in the polyethylene bags and the non-breathable polyethylene bags obtained in Examples 1, 2, 3, 4, and 5, respectively, sealed, and left for 3 days at room temperature in May of this year. The incense was sensory.
비통기성 필름 포장대에 보관한 사과는 사과향이 감소하고 빛갈이 퇴색하였으나 통기성 필름 포장대에 보관한 사과는 향과 빛깔의 보존상태가 좋았다. 특히 탄산칼슘의 첨가량이 많이 들어갈수록 잔류 신선도가 좋은 것을 확인하였다.Apples stored in a non-breathable film wrapper had reduced apple aroma and faded light, but apples stored on a breathable film wrapper had good aroma and color preservation. In particular, it was confirmed that the residual freshness was good as the amount of calcium carbonate added increased.
<수분투과도 실험>Water Permeability Experiment
상기와 같이 이 발명은 통기성 필름으로 농산물을 포장했을 때 농산물에서 방출되는 부패가스를 외부로 배출하여 신선도를 오래 유지할 수 있도록 농산물 및 식품 포장용 통기성 폴리에틸렌 필름 포장대를 제공하고, 동시에 이 발명은 인플레이션 필름제조 과정에서 얻어진 필름을 연속된 공정에서 1축 연신하여 통기성 필름 포장대를 얻는 방법을 제안하는 것이다.As described above, the present invention provides a breathable polyethylene film packaging stand for agricultural products and food packaging to discharge the decay gas emitted from the agricultural products when the agricultural products are packaged with a breathable film to maintain the freshness, and at the same time the present invention is an inflation film It is to propose a method of obtaining a breathable film package by uniaxially stretching the film obtained in the manufacturing process in a continuous step.
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| KR10-2000-0028930A KR100380667B1 (en) | 2000-05-29 | 2000-05-29 | Air permeability film packing bag and in the method for agricultural products packing |
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| KR10-2000-0028930A KR100380667B1 (en) | 2000-05-29 | 2000-05-29 | Air permeability film packing bag and in the method for agricultural products packing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398477B1 (en) * | 2001-07-25 | 2003-09-19 | 주식회사 한진피앤씨 | Rolling mill air permeability film with pasteboard non-woven textile sheet film of for husbandry |
| KR100712399B1 (en) * | 2007-02-02 | 2007-04-27 | 주식회사 뉴보텍 | Resin composition for being used to manufacture functional resin articles and functional pipe |
| KR102210546B1 (en) * | 2020-03-31 | 2021-02-01 | (주)상진에코 | Anti-biotics photo degradable plastic resin composition and manufacturing method thereof |
| CN116790123A (en) * | 2023-05-26 | 2023-09-22 | 东莞市欣荣天丽科技实业有限公司 | Food deoxidizer and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6312645A (en) * | 1986-07-03 | 1988-01-20 | Ube Ind Ltd | Film for skin packaging |
| KR910001022A (en) * | 1989-06-30 | 1991-01-30 | 원본미기재 | Phosphate Buffer Wash and Cleanser Composition Improves Amidoperoxy Acid Storage Stability |
| JPH0550522A (en) * | 1991-08-19 | 1993-03-02 | Tonen Chem Corp | Manufacture of microscopically porous elastomer film |
| JPH07140503A (en) * | 1993-11-16 | 1995-06-02 | Hitachi Ltd | Microdisplacement generator |
| JP3765665B2 (en) * | 1998-02-26 | 2006-04-12 | 三井化学株式会社 | Porous film and method for producing the same |
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2000
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398477B1 (en) * | 2001-07-25 | 2003-09-19 | 주식회사 한진피앤씨 | Rolling mill air permeability film with pasteboard non-woven textile sheet film of for husbandry |
| KR100712399B1 (en) * | 2007-02-02 | 2007-04-27 | 주식회사 뉴보텍 | Resin composition for being used to manufacture functional resin articles and functional pipe |
| KR102210546B1 (en) * | 2020-03-31 | 2021-02-01 | (주)상진에코 | Anti-biotics photo degradable plastic resin composition and manufacturing method thereof |
| CN116790123A (en) * | 2023-05-26 | 2023-09-22 | 东莞市欣荣天丽科技实业有限公司 | Food deoxidizer and preparation method thereof |
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| KR100380667B1 (en) | 2003-04-18 |
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