KR102577744B1 - Film for disposable lunch box - Google Patents

Film for disposable lunch box Download PDF

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Publication number
KR102577744B1
KR102577744B1 KR1020210022228A KR20210022228A KR102577744B1 KR 102577744 B1 KR102577744 B1 KR 102577744B1 KR 1020210022228 A KR1020210022228 A KR 1020210022228A KR 20210022228 A KR20210022228 A KR 20210022228A KR 102577744 B1 KR102577744 B1 KR 102577744B1
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South Korea
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film
lunch box
film layer
disposable lunch
box container
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KR1020210022228A
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Korean (ko)
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KR20220118614A (en
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이원일
조욱상
김서연
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대전보건대학교 산학협력단
이원일
조욱상
김서연
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    • 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
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal 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
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B2311/00Metals, their alloys or their compounds
    • B32B2311/24Aluminium
    • 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
    • B32B2323/00Polyalkenes
    • B32B2323/04Polyethylene
    • B32B2323/046LDPE, i.e. low density polyethylene
    • 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
    • B32B2439/00Containers; Receptacles
    • B32B2439/70Food packaging
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/80Packaging reuse or recycling, e.g. of multilayer packaging

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  • Laminated Bodies (AREA)

Abstract

본 발명은 일회용 도시락 용기와 음식물 사이에 설치되어 음식물이 상기 일회용 도시락 용기에 접촉하지 않도록 하기 위한 일회용 도시락 용기용 필름에 관한 것으로서, 상기 일회용 도시락 용기용 필름은 폴리에틸렌 재질의 제1 필름층, 상기 제1 필름층 상에 적층되며 에틸렌 비닐알코올 재질의 제2 필름층, 및 상기 필름층의 일면에 적층되는 알루미늄 박막으로 이루어지는 것을 특징으로 한다.The present invention relates to a film for a disposable lunch box container that is installed between a disposable lunch box container and food to prevent the food from coming into contact with the disposable lunch box container, wherein the film for a disposable lunch box container includes a first film layer made of polyethylene, the first film layer made of polyethylene, and It is characterized in that it is laminated on the first film layer and consists of a second film layer made of ethylene vinyl alcohol, and an aluminum thin film laminated on one side of the film layer.

Description

일회용 도시락 용기용 필름.{FILM FOR DISPOSABLE LUNCH BOX}Film for disposable lunch box containers. {FILM FOR DISPOSABLE LUNCH BOX}

본 발명은 일회용 도시락 용기용 필름에 관한 것으로서, 더욱 상세하게는, 일회용 도시락 용기에 음식물이 묻지 않도록 일회용 도시락 용기와 음식물 사이에 설치되는 필름에 관한 것이다.The present invention relates to a film for a disposable lunch box container, and more specifically, to a film installed between a disposable lunch box container and food to prevent food from sticking to the disposable lunch box container.

일회용 도시락 용기에 담기는 음식물 중 세척이 어려운 반찬이 담기는 경우가 많은데, 이 경우 사용 후 용기가 더럽혀져 재활용이 어려운 실정이다. 재활용을 위해서는 물로 세척한 후 건조하여 분리수거 하는 등 사용자가 후처리를 해야 하므로 그냥 버려지는 경우도 다반사이다.Disposable lunch boxes often contain side dishes that are difficult to clean, making recycling difficult as the containers become dirty after use. In order to be recycled, the user must perform post-processing, such as washing with water, drying, and separate collection, so it is often just thrown away.

또한, 고급 도시락 용기의 경우 고품질의 재질로 제작되는데 분해가 잘 되지 않아 그냥 버려질 경우 환경오염의 원인이 되고 있으며, 고강도의 도시락 용기에 남은 음식물 쓰레기를 모아 버리기 어려운 문제가 있다.In addition, high-end lunch boxes are made of high-quality materials, but they do not decompose easily, so they cause environmental pollution when thrown away, and it is difficult to collect and dispose of food waste left in high-strength lunch boxes.

대한민국 공개특허공보 제10-2018-0092221호(2018. 08. 17.)Republic of Korea Patent Publication No. 10-2018-0092221 (2018. 08. 17.) 대한민국 등록특허공보 제10-1427171호(2014. 07. 31.)Republic of Korea Patent Publication No. 10-1427171 (July 31, 2014)

본 발명은 상기와 같은 종래기술을 감안하여 안출된 것으로, 일회용 도시락 용기와 음식물 사이에 필름을 두어 음식물에 의해 도시락 용기가 오염되지 않아 사용 후 일회용 도시락 용기를 분리수거하기 용이하도록 하는 일회용 도시락 용기용 필름을 제공하는 것을 그 목적으로 한다.The present invention was developed in consideration of the prior art as described above, and is for a disposable lunch box container in which a film is placed between the disposable lunch box container and the food to prevent the lunch box container from being contaminated by food, making it easy to separate and collect the disposable lunch box container after use. The purpose is to provide films.

또한, 상기 필름을 사용한 후 분리하여 세척 후 재활용 가능하도록 한 일회용 도시락용 필름을 제공하는 것을 그 목적으로 한다.In addition, the purpose is to provide a disposable lunch box film that can be separated after use, washed, and then recycled.

상기와 같은 과제를 해결하기 위한 본 발명의 일회용 도시락 용기용 필름은 일회용 도시락 용기와 음식물 사이에 설치되어 음식물이 상기 일회용 도시락 용기에 접촉하지 않도록 한 것으로서, 폴리에틸렌 재질의 제1 필름층, 상기 제1 필름층 상에 적층되며 에틸렌 비닐알코올(EVOH) 재질의 제2 필름층, 및 상기 필름층의 일면에 적층되는 알루미늄 박막으로 이루어지는 것을 특징으로 한다.The film for a disposable lunch box container of the present invention to solve the above problems is installed between the disposable lunch box container and food to prevent the food from contacting the disposable lunch box container, and includes a first film layer made of polyethylene, the first film layer made of polyethylene, and the first film layer made of polyethylene. It is laminated on the film layer and is characterized by being made of a second film layer made of ethylene vinyl alcohol (EVOH), and an aluminum thin film laminated on one side of the film layer.

이때, 상기 제1 필름층은 저밀도 폴리에틸렌(LDPE) 및 선형 저밀도 폴리에틸렌(LLDPE)를 0.5:1 내지 1:0.5의 중량비로 혼합한 폴리에틸렌 재질로 이루어지는 것을 특징으로 한다.At this time, the first film layer is characterized by being made of a polyethylene material mixed with low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE) at a weight ratio of 0.5:1 to 1:0.5.

본 발명에 따른 일회용 도시락 용기용 필름을 일회용 도시락 용기와 음식물 사이에 필름을 두면 음식물에 의해 도시락 용기가 오염되지 않아 사용 후 일회용 도시락 용기를 분리수거하기 용이한 효과를 얻을 수 있다.If the film for a disposable lunch box according to the present invention is placed between the disposable lunch box container and food, the lunch box container is not contaminated by food, making it easy to separate and collect the disposable lunch box container after use.

또한, 상기 필름을 사용한 후 분리하여 세척 후 재활용할 수 있다.Additionally, after use, the film can be separated, washed and recycled.

도 1은 본 발명에 따른 일회용 도시락 용기용 필름의 적층 구조를 나타낸 단면도이다.Figure 1 is a cross-sectional view showing the laminated structure of a film for a disposable lunch box container according to the present invention.

이하 본 발명을 보다 상세히 설명한다. 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, the present invention will be described in more detail. Terms or words used in this specification and claims should not be construed as limited to their common or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted with meaning and concept consistent with the technical idea of the present invention based on the principle that it is.

본 발명의 일회용 도시락 용기용 필름은 일회용 도시락 용기와 음식물 사이에 설치되어 음식물이 상기 일회용 도시락 용기에 접촉하지 않도록 한 것이다. 상기 일회용 도시락 용기용 필름은 도 1에 도시된 것과 같은 적층 구조로 형성되는데, 폴리에틸렌 재질의 제1 필름층, 상기 제1 필름층 상에 적층되며 에틸렌 비닐알코올 재질의 제2 필름층, 및 상기 필름층의 일면에 적층되는 알루미늄 박막으로 이루어져 있다.The film for a disposable lunch box container of the present invention is installed between a disposable lunch box container and food to prevent the food from contacting the disposable lunch box container. The film for the disposable lunch box container is formed in a laminated structure as shown in Figure 1, including a first film layer made of polyethylene, a second film layer laminated on the first film layer and made of ethylene vinyl alcohol, and the film. It consists of a thin aluminum film laminated on one side of the layer.

이러한 구조의 필름을 적용함으로써 음식물이 새어나와 일회용 도시락 용기에 묻지 않도록 기밀을 유지할 수 있으며, 일회용 도시락 용기를 전자레인지에 넣어 데울 때 내부의 음식물에 효과적으로 열전달이 이루어지도록 하여 음식물을 쉽게 데울 수 있고, 산소 투과도를 낮추어 내부의 음식물에 대한 보존성을 향상시킬 수 있게 된다.By applying a film with this structure, it is possible to maintain airtightness to prevent food from leaking out and getting on the disposable lunch box container, and when the disposable lunch box container is put in a microwave to heat it, heat is effectively transferred to the food inside, making it easy to warm the food. By lowering the oxygen permeability, the preservation of the food inside can be improved.

상기 제1 필름층은 폴리에틸렌 재질로 이루어지는데, 특히, 저밀도 폴리에틸렌(LDPE) 및 선형 저밀도 폴리에틸렌(LLDPE)를 0.5:1 내지 1:0.5의 중량비로 혼합한 폴리에틸렌 재질로 이루어지는 것이 바람직하다.The first film layer is made of polyethylene, and in particular, it is preferably made of polyethylene mixed with low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE) at a weight ratio of 0.5:1 to 1:0.5.

상기 저밀도 폴리에틸렌은 밀도가 0.91 내지 0.94인 폴리에틸렌으로서 결정화 온도가 낮아 가공성, 유연성, 투명성이 우수하다. 또한, 상기 선형 저밀도 폴리에틸렌은 저밀도 폴리에틸렌과 고밀도 폴리에틸렌의 중간 정도의 물성을 가진 폴리에틸렌으로서 강인성과 투명성의 밸런스가 좋으며 내열성이 우수하기 때문에 포장용 필름으로 널리 사용되고 있다.The low-density polyethylene is polyethylene with a density of 0.91 to 0.94 and has a low crystallization temperature, so it has excellent processability, flexibility, and transparency. In addition, the linear low-density polyethylene is a polyethylene with physical properties intermediate between low-density polyethylene and high-density polyethylene, has a good balance of toughness and transparency, and has excellent heat resistance, so it is widely used as a packaging film.

본 발명에서는 상기 저밀도 폴리에틸렌과 선형 저밀도 폴리에틸렌을 적절히 배합하여 이를 용융 및 압출 성형함으로써 제1 필름층을 제조하게 된다. 이를 통해 필름의 적절한 강도와 유연성을 확보할 수 있으므로 일회용 도시락 용기의 다양한 내부 구조에 대응하여 쉽게 설치할 수 있게 된다.In the present invention, the first film layer is manufactured by appropriately mixing the low-density polyethylene and linear low-density polyethylene and melting and extruding them. This ensures appropriate strength and flexibility of the film, making it easy to install in response to the various internal structures of disposable lunch boxes.

또한, 상기 제1 필름층 상에 제2 필름층을 적층하게 되는데, 상기 제2 필름층으로는 에틸렌 비닐알코올 재질을 적용하고 있다. 상기 에틸렌 비닐알코올 재질의 필름을 적층하면 산소 투과도를 낮출 수 있기 때문에 도시락 용기 내부의 음식물에 대한 보존성을 향상시킬 수 있게 된다.In addition, a second film layer is laminated on the first film layer, and the second film layer is made of ethylene vinyl alcohol. Laminating the film made of ethylene vinyl alcohol can reduce oxygen permeability, thereby improving the preservation of food inside the lunch box container.

또한, 상기 제2 필름층 상에 알루미늄 박막을 적층함으로써 산소 투과도를 낮추면서 전자레인지에 상기 도시락 용기를 넣었을 때 열 전달 효율을 높여 음식물을 쉽게 데울 수 있도록 할 수 있다.In addition, by laminating an aluminum thin film on the second film layer, oxygen permeability can be reduced and heat transfer efficiency can be increased when the lunch box container is placed in a microwave oven, making it possible to easily warm food.

상기 필름을 제조하는 과정을 구체적으로 설명하면 다음과 같다.The process of manufacturing the film is described in detail as follows.

먼저 제1 필름층을 제조하기 위하여 폴리에틸렌 원료를 배합하는 공정을 수행하게 되는데, 전술한 바와 같이 저밀도 폴리에틸렌 및 선형 저밀도 폴리에틸렌을 0.5:1 내지 1:0.5의 중량비로 배합하게 된다.First, a process of mixing polyethylene raw materials is performed to produce the first film layer. As described above, low-density polyethylene and linear low-density polyethylene are mixed at a weight ratio of 0.5:1 to 1:0.5.

상기 배합된 원료를 성형 가공하는데, 실린더형 압출기에 상기 원료를 공급하여 가열 용융한 후 실린더 헤드로부터 압출하는 통상의 인플레이션 압출 성형에 의하여 제1 필름을 제조할 수 있다.The mixed raw materials are molded and processed, and the first film can be manufactured by conventional inflation extrusion molding in which the raw materials are supplied to a cylindrical extruder, heated and melted, and then extruded from a cylinder head.

또한, 상기 제2 필름도 전술한 바와 같이 압출 공정을 통해 제조하게 되는데, 상기 제1 필름과 제2 필름을 합지할 때 통상의 가열 압착 방식에 의해 합지하게 된다.In addition, the second film is also manufactured through an extrusion process as described above, and when the first film and the second film are laminated, they are laminated using a conventional heat-pressing method.

상기 제1 필름과 제2 필름이 합지된 필름의 표면에 알루미늄 박막을 증착에 의해 형성하게 된다. 이때 증착 효율을 ㅎ야상시키기 위하여 증착면에 대한 코로나 처리 공정을 수행하는 것이 바람직하다.An aluminum thin film is formed by vapor deposition on the surface of the film in which the first film and the second film are laminated. At this time, it is desirable to perform a corona treatment process on the deposition surface to improve deposition efficiency.

상기 코로나 처리는 필름의 표면에 고주파수/고전압의 전자를 투과시켜 필름의 표면에 수십 나노미터 크기의 표면 거칠기를 형성하거나 이물질을 제거하기 위한 공정이다. 일 실시예에서는 상기 코로나 처리를 22,000V, 17A의 전압 및 전류 조건에서 수행하였다.The corona treatment is a process for forming surface roughness of tens of nanometers in size or removing foreign substances on the surface of the film by transmitting high frequency/high voltage electrons to the surface of the film. In one example, the corona treatment was performed under voltage and current conditions of 22,000V and 17A.

상기 코로나 처리가 완료된 증착면에 알루미늄 박막을 형성하는데 0.03 내지 0.07㎛의 두께로 알루미늄 분말을 진공 증착하는 방법으로 상기 박막을 형성할 수 있다.An aluminum thin film can be formed on the deposition surface on which the corona treatment has been completed by vacuum depositing aluminum powder to a thickness of 0.03 to 0.07 μm.

이러한 방법으로 제조된 필름은 제1 필름 및 제2 필름은 각각 0.1 내지 0.2㎛의 두께로 이루어지며, 상기 알루미늄 박막은 0.03 내지 0.05㎛의 두께로 이루어지게 된다. 이와 같이 제조된 필름은 쉽게 절단되고 접힐 수 있기 때문에 다양한 형태의 일회용 도시락 용기에 적용할 수 있다.In the film produced by this method, the first film and the second film each have a thickness of 0.1 to 0.2 ㎛, and the aluminum thin film has a thickness of 0.03 to 0.05 ㎛. Since the film manufactured in this way can be easily cut and folded, it can be applied to various types of disposable lunch boxes.

또한, 상기 필름은 사용 후 물에 세척하는 것만으로 상기 필름의 표면에 부착된 음식물이 쉽게 제거될 수 있어 1회 또는 2회 정도는 재활용도 가능한 것으로 나타났다.In addition, the film was found to be recyclable once or twice as food adhering to the surface of the film could be easily removed simply by washing it with water after use.

상기 필름은 일회용 도시락 용기와 음식물 사이에 설치되는 것으로서, 음식물이 담긴 도시락 용기의 상부에 덮어 도시락 용기 뚜껑에 음식물이 묻지 않도록 할 수 있으며, 또한, 도시락 용기의 바닥에도 설치하여 음식물이 도시락 용기 자체에 전혀 묻지 않도록 할 수도 있다.The film is installed between the disposable lunch box container and the food, and can cover the top of the lunch box container containing food to prevent food from sticking to the lid of the lunch box container. It can also be installed on the bottom of the lunch box container to prevent food from sticking to the lunch box container itself. You can also choose not to ask at all.

따라서 도시락의 취식 후 상기 필름만 수거하여 버리거나 세척하여 재사용 가능하며, 일회용 도시락 용기는 오염되지 않아 그대로 분리수거가 가능하게 된다.Therefore, after eating the lunch box, only the film can be collected and discarded or washed and reused, and the disposable lunch box container is not contaminated and can be collected separately.

본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다.The rights of the present invention are not limited to the embodiments described above but are defined by the claims, and those skilled in the art can make various changes and modifications within the scope of the claims. This is self-evident.

Claims (2)

일회용 도시락 용기와 음식물 사이에 설치되어 음식물이 상기 일회용 도시락 용기에 접촉하지 않도록 하기 위한 일회용 도시락 용기용 필름으로서,
상기 일회용 도시락 용기용 필름은 폴리에틸렌 재질의 제1 필름층,
상기 제1 필름층 상에 적층되며 에틸렌 비닐알코올(EVOH) 재질의 제2 필름층,
및 상기 제2 필름층의 일면에 적층되는 알루미늄 박막으로 이루어지며,
상기 제1 필름층은 저밀도 폴리에틸렌(LDPE) 및 선형 저밀도 폴리에틸렌(LLDPE)를 0.5:1 내지 1:0.5의 중량비로 혼합한 폴리에틸렌 재질로 이루어지며,
상기 알루미늄 박막은 상기 제1 필름층 및 제2 필름층이 합지된 필름의 표면에 22,000V, 17A의 전압 및 전류 조건으로 코로나 처리하고, 상기 코로나 처리가 완료된 증착면에 형성되는 것을 특징으로 하는 일회용 도시락 용기용 필름.
A film for disposable lunch boxes installed between a disposable lunch box container and food to prevent food from contacting the disposable lunch box container,
The film for the disposable lunch box container includes a first film layer made of polyethylene,
A second film layer laminated on the first film layer and made of ethylene vinyl alcohol (EVOH),
and an aluminum thin film laminated on one surface of the second film layer,
The first film layer is made of a polyethylene material mixed with low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE) at a weight ratio of 0.5:1 to 1:0.5,
The aluminum thin film is a disposable film, characterized in that the surface of the film in which the first film layer and the second film layer are laminated is subjected to corona treatment under voltage and current conditions of 22,000V and 17A, and is formed on the deposition surface on which the corona treatment is completed. Film for lunch box containers.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007510558A (en) * 2003-10-17 2007-04-26 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Adhesion of foil to thermoplastic polymer
JP2008513305A (en) 2004-09-17 2008-05-01 オベルホファー、クルト container
KR101427171B1 (en) * 2014-05-30 2014-08-07 (주)제이피앤씨 A Soft Packing Material and Manufacturing method thereof
JP2017052282A (en) 2016-10-31 2017-03-16 大日本印刷株式会社 Barrier laminate film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180092221A (en) 2017-02-08 2018-08-17 (주)으뜸엘엔에스 Natto Packing Container with Natto Packing Material to Increase Shelf Life

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007510558A (en) * 2003-10-17 2007-04-26 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Adhesion of foil to thermoplastic polymer
JP2008513305A (en) 2004-09-17 2008-05-01 オベルホファー、クルト container
KR101427171B1 (en) * 2014-05-30 2014-08-07 (주)제이피앤씨 A Soft Packing Material and Manufacturing method thereof
JP2017052282A (en) 2016-10-31 2017-03-16 大日本印刷株式会社 Barrier laminate film

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