KR100943319B1 - Method of manufacturing nature friendly food-wrapping material - Google Patents

Method of manufacturing nature friendly food-wrapping material Download PDF

Info

Publication number
KR100943319B1
KR100943319B1 KR1020090008109A KR20090008109A KR100943319B1 KR 100943319 B1 KR100943319 B1 KR 100943319B1 KR 1020090008109 A KR1020090008109 A KR 1020090008109A KR 20090008109 A KR20090008109 A KR 20090008109A KR 100943319 B1 KR100943319 B1 KR 100943319B1
Authority
KR
South Korea
Prior art keywords
film
white
packaging material
printing
ldpe
Prior art date
Application number
KR1020090008109A
Other languages
Korean (ko)
Inventor
황규철
Original Assignee
주식회사 동서
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 동서 filed Critical 주식회사 동서
Priority to KR1020090008109A priority Critical patent/KR100943319B1/en
Application granted granted Critical
Publication of KR100943319B1 publication Critical patent/KR100943319B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered 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
    • B32B15/08—Layered 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
    • B32B15/085—Layered 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 comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/06—Coating on the layer surface on metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing

Abstract

PURPOSE: A manufacturing method of a wrapping material for environmentally friendly food packing is provided to reduce the sued amount and discharge amount of volatile organic compounds without conventional white ink. CONSTITUTION: A manufacturing method of a wrapping material for environmentally friendly food packing includes a step for laminating LLDPE for maintaining a shape of aluminum foil and LDPE and improving barrier property on the bottom of a base film. A printing layer(20) is formed on the rear side of the base film by printing various colors and pattern on the film. A white coating film(30) is formed to the thickness of 10 ~ 20μm on the rear surface of the base film.

Description

친환경 식품 포장용 포장재의 제조방법{Method of manufacturing nature friendly food-wrapping material}Method of manufacturing packaging materials for eco-friendly food packaging {Method of manufacturing nature friendly food-wrapping material}

본 발명은 커피믹스와 같은 미세분말이나 식품 등을 운반, 보관 및 판매를 용이하게 하기 위해 포장하는 포장재의 제조방법에 관한 것으로서, 보다 상세하게는 기존 휘발성유기화합물(VOC)과 같이 사용하는 백색 잉크를 대체하여 백색 안료를 사용함으로써, 식품 포장재 외관이 종래 제품과 동일한 효과를 나타내도록 함과 동시에 백색잉크 및 용제 사용량을 40% 이상 감소시켜 공해발생을 최소화하고, 식품 포장재에 잔존하는 휘발성유기화합물량을 획기적으로 저감시켜 식품의 안정성 및 소비자의 신뢰성을 향상시킬 수 있는 친환경 식품 포장용 포장재의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a packaging material for packaging to facilitate transport, storage and sale of fine powders or foods such as coffee mixes, and more particularly, white ink used with existing volatile organic compounds (VOC). By using white pigments, the food packaging material has the same effect as the conventional products, while reducing the amount of white ink and solvent by 40% or more, minimizing pollution, and the amount of volatile organic compounds remaining in the food packaging material. The present invention relates to a method for manufacturing a packaging material for eco-friendly food packaging that can significantly reduce the safety and improve the reliability of food.

주지된 바와 같이 종래의 식품 포장재를 제조하는 방법으로는 폴리에틸렌 텔레프타레이트[Poly Ethylene Telephtalate(PET)], 오리엔티드 폴리플로필렌[Oriented Poly Propylene(OPP)], 나일론[NYLON] 등의 기재필름 내면에 그라비 어(Gravure) 인쇄층을 형성하고, Low Density Poly Ethylene(LDPE)층과 알루미늄 호일층, 열접착층인 LDPE층 및 구김방지 및 형태유지를 위한 LLDPE층이 순차적으로 접착되어 일체로 구성된다.As is well known, conventional methods for producing food packaging materials include inner surfaces of base films such as polyethylene ethylene telephtalate (PET), orientated polypropylene (OPP), nylon [NYLON], and the like. Gravure printing layer is formed, low density poly ethylene (LDPE) layer, aluminum foil layer, LDPE layer which is heat adhesive layer, and LLDPE layer for wrinkle prevention and shape maintenance are sequentially bonded together. .

이때, 상기 인쇄층을 형성하는 잉크는 점도를 낮추어 기재 필름에 전이성을 좋게 하기 위해서 에틸 아세테이트[Ethyl Acetate(EA)], 메틸 에틸 케톤[Methyl Ethyl Ketone(MEK)], Iso Propyl Alcohol(IPA), 톨루엔[Toluene] 과 같은 휘발성유기화합물을 일정 비율로 혼합하게 된다.At this time, the ink forming the printing layer is ethyl acetate [Ethyl Acetate (EA)], methyl ethyl ketone (MEK), Iso Propyl Alcohol (IPA), Volatile organic compounds such as toluene are mixed in a proportion.

이와 같이 인쇄층을 형성하는 잉크와 상기 잉크와 혼합되는 휘발성유기화합물은 심한 악취로 인해 두통을 유발하는 등의 작업환경을 열악하게 하는 한편, 대기 중으로 배출될 경우 심각한 환경오염을 발생시키고, 식품 포장재에 사용될 경우 내장되는 식품의 안정성 문제가 우려되어 소비자로부터 신뢰성이 저하되는 결과를 초래하였으며, 식품 포장재의 인쇄 업종에서는 종래부터 작업 환경 개선을 지적 받아 환풍설비를 확충하는 등의 자구 노력을 강화하였으나, 휘발성유기화합물의 계속적인 사용에 따른 종래의 문제점을 해소할 수는 없었다.As such, the ink forming the print layer and the volatile organic compound mixed with the ink deteriorate the working environment such as causing a headache due to a bad smell, and cause serious environmental pollution when discharged to the atmosphere, and food packaging materials. When used in the market, there is a concern about the stability of the foods embedded in the food, resulting in a decrease in reliability from the consumer.In the printing industry of food packaging materials, the company has been strengthening its efforts such as expanding the ventilation facilities due to the improvement of the working environment. Conventional problems associated with the continued use of volatile organic compounds could not be solved.

이러한 휘발성유기화합물의 사용은 "대기환경보전법"에 따라 배출 농도를 엄격히 관리 및 제한하고 있으며, 관리 기준도 점차적으로 낮아지고 있는 추세로 이를 위반 시에는 강력한 규제가 가해지고 있는 실정이다.The use of these volatile organic compounds is strictly controlled and restricted in accordance with the "Air Quality Preservation Act", and the management standards are gradually being lowered.

또한, 식품 포장재 업종에서는 휘발성유기화합물 배출 농도 관리를 위해 Regenerative Thermal Oxidizer(RTO)와 같은 유기화합물 소각시설을 이용하여 배출되는 유기화합물을 소각처리 하고 있으나, 생산성 증가에 따른 유기화합물 사용량 이 증가될 경우 소각시설도 같이 증설해야 하므로 그에 따른 비용 부담이 가중되는 문제가 발생하고 있다.In addition, in the food packaging industry, organic compound incineration facilities, such as Regenerative Thermal Oxidizer (RTO), are incinerated to control the concentration of volatile organic compound emissions. Incineration facilities need to be added as well, which raises the cost burden.

따라서, 상기와 같은 문제점을 해소하기 위해 본 발명은 식품 포장재의 표면을 형성하는 기재용 필름의 이면에 다양한 색상을 인쇄하는 인쇄층을 형성하는 인쇄공정 중 제품의 은폐력을 위해 잉크 색상 중 40% 이상을 차지하는 백색부분을 비워놓고 익스트루션 코팅(Extrusion Coating) 공정에서 순수한 Low Density Poly Ethylene(LDPE) 원료에 백색안료를 일정 비율로 혼합하여 종래의 백색잉크를 사용하지 않고도 동일한 효과를 얻음은 물론 휘발성유기화합물 사용량 및 배출량을 저감시켜 환경 오염물질 및 악취 등의 발생을 최소화하고, 포장재 내에 잔존하는 휘발성유기화합물 농도를 저감시켜 식품의 안전성을 동시에 향상시키고자 안출된 목적이 있다.Therefore, in order to solve the above problems, the present invention is more than 40% of the ink color for the hiding power of the product during the printing process to form a printing layer for printing a variety of colors on the back surface of the substrate film forming the surface of the food packaging material By leaving the white part occupied and mixing white pigment in a certain ratio with pure Low Density Poly Ethylene (LDPE) raw material in the extrusion coating process, the same effect is obtained without using the conventional white ink as well as volatile It aims to minimize the generation of environmental pollutants and odors by reducing the amount and emission of organic compounds, and to improve the safety of food at the same time by reducing the concentration of volatile organic compounds remaining in the packaging.

상기와 같은 목적을 달성하기 위해 본 발명은 기재용 필름(PET)의 저면에 접착층인 LDPE, 베리어(Barrier)성을 향상시키는 알루미늄 호일, 열접착층인 LDPE 및 구김방지 및 형태유지를 위한 LLDPE가 순차적으로 적층된 다층구조의 식품 포장용 포장재의 제조방법에 적용되며, 상기 기재용 필름의 이면에 다양한 색상 및 문양 을 인쇄하여 인쇄층을 형성하는 인쇄공정에 있어서, 상기 인쇄공정에서는 백색부분을 인쇄하지 않은 상태에서 압출코팅공정에서 LDPE 93 ~ 95중량％와 백색안료 5 ~ 7중량％를 교반,혼합하여 기재용 필름의 이면에 10 ~ 20㎛ 두께로 백색코팅막을 형성하되, 상기 백색안료 5 ~ 7중량％는 상기 백색코팅막의 끊어짐 방지와 기재용 필름과의 접착력 보존을 위해서 Melt Index(M.I) 5 ~ 10g/10min으로 하고, 백색안료 자체 고형분 30 ~ 70％로 구성된 것을 특징으로 한다.In order to achieve the above object, the present invention is a LDPE adhesive layer on the bottom of the film for the substrate (PET), aluminum foil to improve the barrier (Barrier), LDPE which is a thermal adhesive layer and LLDPE for wrinkle prevention and shape maintenance sequentially Applied to a method for manufacturing a food packaging packaging material having a multi-layer structure stacked in the printing process, in the printing process to form a printing layer by printing a variety of colors and patterns on the back surface of the substrate film, the printing process does not print the white portion In a state of stirring and mixing LDPE 93 ~ 95% by weight and white pigment 5-7% by weight in the extrusion coating process to form a white coating film with a thickness of 10 ~ 20㎛ on the back surface of the substrate film, the white pigment 5-7 weight % Is Melt Index (MI) 5 ~ 10g / 10min in order to prevent the breakage of the white coating film and to preserve the adhesive strength with the film for the base material, 30% to 70% of the white pigment itself solid content It shall be.

또한, 상기 백색코팅막은 상기 기재용 필름의 이면 전체에 코팅시키되, 부분적으로 백색을 사용하는 디자인의 포장재는 제외되는 것을 특징으로 한다.In addition, the white coating film is coated on the entire back surface of the film for the substrate, it is characterized in that the packaging material of the design using partly white is excluded.

삭제delete

삭제delete

상술한 바와 같은 본 발명의 친환경 식품 포장용 포장재의 제조방법을 제공함으로써, 종래의 백색잉크를 사용하지 않고도 동일한 효과 즉, 내장되는 식품의 은폐력을 얻음은 물론 휘발성유기화합물의 사용량 및 배출량을 저감시켜 환경 오염물질 및 악취 등의 발생을 최소화하고, 배출되는 유기화합물의 소각시설을 축소시킬 수 있으므로 그에 따른 제반비용을 현저하게 감소시켜 경제성을 향상시키며, 완성된 포장재 내에 잔존하는 휘발성유기화합물 농도를 저감시켜 식품의 안전성을 동시에 향상시킬 수 있는 유용한 발명인 것이다.By providing the manufacturing method of the eco-friendly food packaging packaging material of the present invention as described above, it is possible to obtain the same effect without using the conventional white ink, that is, to obtain the hiding power of the embedded food as well as to reduce the amount of use and the amount of volatile organic compounds and the environment By minimizing the generation of pollutants and odors, and reducing the incineration facilities of the emitted organic compounds, it significantly reduces the overall costs and improves the economics, and reduces the concentration of volatile organic compounds remaining in the finished packaging. It is a useful invention that can improve the safety of food at the same time.

이하, 본 발명을 첨부된 도면을 참조하여 보다 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

첨부된 도 1은 본 발명에 따른 포장재를 도시해 보인 구성도이고, 도 2는 본 발명에 따른 포장재의 인쇄층을 도시해 보인 구성도이며, 도 3은 본 발명에 따른 압출코팅공정을 도시해 보인 공정도, 도 4는 본 발명에 따른 포장재의 인쇄층만이 형성된 상태를 나타낸 사진 및 도 5는 본 발명에 따른 포장재의 인쇄층 이면에 백색코팅막이 형성된 상태를 나타낸 사진이다.1 is a block diagram showing a packaging material according to the present invention, Figure 2 is a block diagram showing a printed layer of the packaging material according to the invention, Figure 3 shows an extrusion coating process according to the invention 4 is a photograph showing a state in which only a printing layer of a packaging material according to the present invention is formed, and FIG. 5 is a photograph showing a state in which a white coating film is formed on the back surface of the printing layer of the packaging material according to the present invention.

도시된 바와 같이 본 발명의 친환경 식품 포장용 포장재의 제조방법은 포장재의 표면을 형성하는 기재용 필름(PET, 10))과 상기 기재용 필름(10)의 이면에 다양한 색상 및 문양을 인쇄하는 인쇄층(20)을 형성하고 상기 인쇄층(20)의 이면에 다시 백색코팅막(30)과 알루미늄 호일(40)과 열접착층인 LDPE(50) 및 LLDPE(60)가 순차적으로 적층된 다층 구조를 갖는 포장재를 형성하게 된다.As shown, the manufacturing method of the eco-friendly food packaging packaging material of the present invention is a printing layer for printing a variety of colors and patterns on the back surface of the substrate film (PET, 10)) and the substrate film 10 to form the surface of the packaging material A packaging material having a multi-layer structure in which 20 is formed and a white coating film 30, an aluminum foil 40, and a heat adhesive layer LDPE 50 and LLDPE 60 are sequentially stacked on the back surface of the printed layer 20. Will form.

상기 기재용 필름(10)의 재질은 Poly Ethylene Telephtalate(PET)로서 이를 가공하여 소정 두께 및 면적을 갖는 투명 비닐지를 롤 형태로 감아서 제공되게 되는데, 이러한 기재용 필름(10)은 자동화된 공지의 인쇄장치에 의한 인쇄공정을 거쳐 도 1에서와 같이 그 이면에 다양한 색상 즉, 백색을 제외한 나머지 디자인된 색상인 흑색, 금색, 청색, 적색, 황색 등의 순서대로 인쇄되며, 상기 색상에 의해 디자인된 여러가지 문양이 인쇄된 인쇄층(20)이 도 4에 도시된 바와 같이 반투명 상태로 형성되며 다시 롤형태로 권취되어 구비되게 된다.The base film 10 is made of Poly Ethylene Telephtalate (PET), which is processed to provide transparent vinyl paper having a predetermined thickness and area in the form of a roll, and the base film 10 is provided in an automated manner. Through the printing process by the printing apparatus is printed in the order of various colors, namely black, gold, blue, red, yellow, etc., except for the white color, as shown in Figure 1, as shown in Figure 1 The printed layer 20 printed with various patterns is formed in a translucent state as shown in FIG. 4 and rolled up again in a roll form.

상기 백색코팅막(30)은 상기 인쇄층(20)을 보호하며, 상기 알루미늄 호일(40)을 접착시키는 수단으로 사용됨과 동시에 인쇄층(20) 형성시 제외된 백색을 형성하는 것으로서, 상기 인쇄층(20)이 이면에 형성되어 롤형태로 구비된 기재용 필름(10)을 도 3에 도시된 바와 같이 자동화된 공지의 압출코팅장치 일측에 위치시킨 후 가동시키면 급지된 기재용 필름(10)이 건조부에서 접착이 용이한 상태가 되도록 열이 가해진 상태로 압출기 측으로 이동하게 되면, 압출코팅장치의 타측에 위치된 상기 알루미늄 호일(40)도 상기 압출기 측으로 급지되는데, 상기 기재용 필름(10)과 알루미늄 호일(40) 사이에는 압출기에서 배출되는 코팅액이 일정 두께로 도포되어 일체로 접착시킴과 동시에 상기 기재용 필름(10)의 이면에 백색코팅막(30)이 형성되며 백색을 인쇄한 것과 같은 효과를 나타내게 된다.The white coating layer 30 is used as a means for protecting the printed layer 20, and to adhere the aluminum foil 40 and at the same time to form a white, which is excluded when the printed layer 20 is formed, the printed layer ( 20) is formed on the back side and the substrate film 10, which is provided in the form of a roll, is placed on one side of an automated extrusion coating apparatus known in the art as shown in FIG. When the heat is applied to the extruder side in a state where heat is applied to facilitate the adhesion in the part, the aluminum foil 40 located on the other side of the extrusion coating apparatus is also fed to the extruder side, the substrate film 10 and aluminum Between the foils 40, the coating liquid discharged from the extruder is applied to a certain thickness and adhered integrally, and at the same time, a white coating film 30 is formed on the back surface of the film 10 for the substrate, and white is printed. It will exhibit an effect.

이때, 상기 백색코팅막(30)은 상기 기재용 필름(10)의 이면 전체에 코팅시키되, 부분적으로 백색을 사용하는 디자인의 포장재는 제외됨이 바람직하며, 상기 백색코팅막(30)을 형성하는 코팅액은 LDPE 93 ~ 95중량％와 백색안료 5 ~ 7중량％를 교반,혼합하여 기재용 필름의 이면에 10 ~ 20㎛ 두께로 코팅됨이 가장 바람직하다.At this time, the white coating film 30 is coated on the entire back surface of the film 10 for the substrate, it is preferable that the packaging material of the design using a part of the white is excluded, the coating liquid for forming the white coating film 30 is LDPE Most preferably, 93 to 95% by weight and 5 to 7% by weight of the white pigment are coated with a thickness of 10 to 20 μm on the back surface of the film for the substrate.

그리고, 상기 백색안료 5 ~ 7중량％는 상기 백색코팅막(30)의 끊어짐 방지와 기재용 필름(10)과의 접착력 보존을 위해서 Melt Index(M.I) 5 ~ 10g/10min으로 하고, 백색안료 자체 고형분 30 ~ 70％로 구성함이 바람직하다.In addition, the 5 to 7% by weight of the white pigment is 5 to 10g / 10min Melt Index (MI) in order to prevent the breakage of the white coating film 30 and to preserve the adhesive strength with the substrate film 10, white pigment itself solid content It is preferable to comprise at 30 to 70%.

한편, 상기 기재용 필름(10)과 알루미늄 호일(40)이 상기 백색코팅막(30)에 의해 일체로 접착된 상태에서 상기 알루미늄 호일(40)의 이면에 LDPE(50) 및 LLDPE(60)를 순차적으로 적층되게 형성시키면 친환경적인 식품용 포장재가 형성되게 되는 것이며, 이를 소정의 형태로 재단하여 스틱형 또는 티백형으로 접합시켜 커피믹스 등을 내장하면 되는 것이다.Meanwhile, the LDPE 50 and the LLDPE 60 are sequentially disposed on the rear surface of the aluminum foil 40 while the base film 10 and the aluminum foil 40 are integrally bonded by the white coating layer 30. If formed to be stacked to form an environmentally friendly food packaging material, it is to be cut into a predetermined shape and bonded in a stick or tea bag type to incorporate a coffee mix or the like.

이와 같은 제조방법에 의해 형성된 식품용 포장재는 종래의 식품용 포장재와 비교하여 [표1]과 같은 물성을 나타내고 있다.The food packaging material formed by such a manufacturing method exhibits physical properties as shown in [Table 1] compared with the conventional food packaging material.

Figure 112009006440243-pat00001
Figure 112009006440243-pat00001

또한, 본 발명에 의해 제조된 포장재에 남아 있는 휘발성유기화합물의 잔존량과 종래에 휘발성유기화합물이 혼합된 백색잉크를 사용하여 제조된 포장재에 남아 있는 휘발성유기화합물의 잔존량을 비교하면 [표2]와 같다.In addition, when the residual amount of the volatile organic compounds remaining in the packaging material prepared by the present invention and the residual amount of volatile organic compounds remaining in the packaging material prepared using a white ink mixed with a conventional volatile organic compound is compared [Table 2 Is the same as.

Figure 112009006440243-pat00002
Figure 112009006440243-pat00002

상기 [표1] 및 [표2]에서 나타난 바와 같이 본 발명의 포장재는 백색잉크와 유기화합물을 사용하는 종래의 포장재와 비교하여 기재용 필름(10)의 접착력이 식품 포장에 필요한 기능에 전혀 손상됨이 없고, 상기 기재용 필름(10)의 이면에 백색을 표현하는데 있어서 동일한 효과를 내는 동시에 유기화합물의 사용량을 현저하게 감소시켜 공해발생포장재에 잔존하는 용제량을 획기적으로 저감하여 소비자의 신뢰성 및 식품의 안전성을 향상시키고, 사용 및 폐기되는 유기화합물의 양을 감소시켜 작업환경을 크게 개선함은 물론 소각설비를 증설시키지 않도록 하여 경제성을 향상시킬 수 있게 되는 것이다.As shown in [Table 1] and [Table 2], the packaging material of the present invention has no damage to the function required for food packaging, compared to the conventional packaging material using white ink and organic compounds. And the same effect in expressing white on the back surface of the base film 10, while significantly reducing the amount of organic compounds used, significantly reducing the amount of solvent remaining in the pollution-producing packaging material to improve consumer reliability and food. It is possible to improve the safety, to reduce the amount of organic compounds used and disposed of, greatly improve the working environment, and to improve the economics by not increasing the incineration facilities.

한편, 본 발명은 상기의 실시예에 한정되지 않으며, 청구범위의 요지를 벗어남이 없는 당 발명의 기술분야에서 다양한 변형적 실시예가 제시될 수 있음은 물론일 것이다.On the other hand, the present invention is not limited to the above embodiments, and various modifications can be made in the art without departing from the scope of the claims.

도 1은 본 발명에 따른 포장재를 도시해 보인 구성도.1 is a block diagram showing a packaging material according to the present invention.

도 2는 본 발명에 따른 포장재의 인쇄층을 도시해 보인 구성도.Figure 2 is a block diagram showing a printed layer of the packaging material according to the present invention.

도 3은 본 발명에 따른 압출코팅공정을 도시해 보인 공정도.Figure 3 is a process diagram showing an extrusion coating process according to the present invention.

도 4는 본 발명에 따른 포장재의 인쇄층만이 형성된 반투명 상태를 나타낸 사진.Figure 4 is a photograph showing a translucent state in which only the print layer of the packaging material according to the invention is formed.

도 5는 본 발명에 따른 포장재의 인쇄층 이면에 백색코팅막이 형성된 상태를 나타낸 사진.Figure 5 is a photograph showing a state in which a white coating film is formed on the back of the printed layer of the packaging material according to the present invention.

***도면의 주요 부분에 대한 부호의 설명***         *** Description of the symbols for the main parts of the drawings ***

10 : 기재용 필름 20 : 인쇄층     10: substrate film 20: printed layer

30 : 백색코팅막 40 : 알루미늄 호일     30: white coating film 40: aluminum foil

50 : LDPE 60 : LLDPE     50: LDPE 60: LLDPE

Claims (4)

기재용 필름(PET)의 저면에 접착층인 LDPE, 베리어(Barrier)성을 향상시키는 알루미늄 호일, 열접착층인 LDPE 및 구김방지 및 형태유지를 위한 LLDPE가 순차적으로 적층된 다층구조의 식품 포장용 포장재의 제조방법에 적용되며, 상기 기재용 필름(10)의 이면에 다양한 색상 및 문양을 인쇄하여 인쇄층(20)을 형성하는 인쇄공정에 있어서,Production of multi-layered food packaging packaging material in which LDPE as an adhesive layer, aluminum foil for improving barrier properties, LDPE as a heat-adhesive layer, and LLDPE for wrinkle prevention and shape retention are sequentially stacked on the bottom of the film for substrate (PET) In the printing process is applied to the method, to form a printed layer 20 by printing a variety of colors and patterns on the back surface of the base film 10, 상기 인쇄공정에서는 백색부분을 인쇄하지 않은 상태에서 압출코팅공정에서 LDPE 93 ~ 95중량％와 백색안료 5 ~ 7중량％를 교반,혼합하여 기재용 필름의 이면에 10 ~ 20㎛ 두께로 백색코팅막(30)을 형성하되, 상기 백색안료 5 ~ 7중량％는 상기 백색코팅막(30)의 끊어짐 방지와 기재용 필름(10)과의 접착력 보존을 위해서 Melt Index(M.I) 5 ~ 10g/10min으로 하고, 백색안료 자체 고형분 30 ~ 70％로 구성됨을 특징으로 하는 친환경 식품 포장용 포장재의 제조방법.In the printing process, a white coating film having a thickness of 10 to 20 μm is formed on the back surface of the substrate film by stirring and mixing 93 to 95% by weight of LDPE and 5 to 7% by weight of white pigment in an extrusion coating process without printing a white portion. 30) to 5 to 7% by weight of the white pigment to the Melt Index (MI) 5 ~ 10g / 10min to prevent the breakage of the white coating film 30 and to preserve the adhesive strength with the substrate film 10, The manufacturing method of eco-friendly food packaging packaging material, characterized in that the white pigment itself consists of 30 to 70% solids. 제 1항에 있어서, 상기 백색코팅막(30)은 상기 기재용 필름(10)의 이면 전체에 코팅시키되, 부분적으로 백색을 사용하는 디자인의 포장재는 제외되는 것을 특징으로 하는 친환경 식품 포장용 포장재의 제조방법.The method of claim 1, wherein the white coating film 30 is coated on the entire back surface of the film 10 for the substrate, the packaging material of the eco-friendly food packaging packaging, characterized in that part of the design using white is excluded. . 삭제delete 삭제delete
KR1020090008109A 2009-02-02 2009-02-02 Method of manufacturing nature friendly food-wrapping material KR100943319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090008109A KR100943319B1 (en) 2009-02-02 2009-02-02 Method of manufacturing nature friendly food-wrapping material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090008109A KR100943319B1 (en) 2009-02-02 2009-02-02 Method of manufacturing nature friendly food-wrapping material

Publications (1)

Publication Number Publication Date
KR100943319B1 true KR100943319B1 (en) 2010-02-19

Family

ID=42083617

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090008109A KR100943319B1 (en) 2009-02-02 2009-02-02 Method of manufacturing nature friendly food-wrapping material

Country Status (1)

Country Link
KR (1) KR100943319B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101160427B1 (en) * 2010-11-29 2012-06-28 김용선 Foam board
KR20190065913A (en) * 2017-12-04 2019-06-12 한국과학기술원 Stick coffee packaging for stirring coffee
KR20190110785A (en) * 2018-03-21 2019-10-01 동원시스템즈 주식회사 Tear proof packaging material
KR102073120B1 (en) 2019-05-28 2020-02-04 주식회사 동서 Manufacturing methods of flexible food packaging which can be easy-to-cut and easy-to-recycle
CN114734654A (en) * 2022-05-16 2022-07-12 安徽紫金新材料科技股份有限公司 Preparation method of high-barrier packaging material
KR102499792B1 (en) 2022-02-04 2023-02-14 주식회사 동서 Eco-friendly packaging and manufacturing methods using Non VOC ink

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008062956A (en) * 2006-09-06 2008-03-21 Nihon Tokkyo Kanri Co Ltd Laminated flexible packaging material and method for manufacturing the same
KR100871590B1 (en) * 2008-05-30 2008-12-02 주식회사 동서 The packing materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008062956A (en) * 2006-09-06 2008-03-21 Nihon Tokkyo Kanri Co Ltd Laminated flexible packaging material and method for manufacturing the same
KR100871590B1 (en) * 2008-05-30 2008-12-02 주식회사 동서 The packing materials

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101160427B1 (en) * 2010-11-29 2012-06-28 김용선 Foam board
KR20190065913A (en) * 2017-12-04 2019-06-12 한국과학기술원 Stick coffee packaging for stirring coffee
KR101998022B1 (en) * 2017-12-04 2019-07-08 한국과학기술원 Stick coffee packaging for stirring coffee
KR20190110785A (en) * 2018-03-21 2019-10-01 동원시스템즈 주식회사 Tear proof packaging material
KR102150156B1 (en) * 2018-03-21 2020-09-01 동원시스템즈 주식회사 Tear proof packaging material
KR102073120B1 (en) 2019-05-28 2020-02-04 주식회사 동서 Manufacturing methods of flexible food packaging which can be easy-to-cut and easy-to-recycle
KR102499792B1 (en) 2022-02-04 2023-02-14 주식회사 동서 Eco-friendly packaging and manufacturing methods using Non VOC ink
CN114734654A (en) * 2022-05-16 2022-07-12 安徽紫金新材料科技股份有限公司 Preparation method of high-barrier packaging material

Similar Documents

Publication Publication Date Title
KR100943319B1 (en) Method of manufacturing nature friendly food-wrapping material
JP5442613B2 (en) Flexible packaging composite material
CN102985263B (en) Laser marking film
US20070000568A1 (en) Packaging material for food items containing permeating oils
US20100137493A1 (en) High mineral content film for sealing
US20070292569A1 (en) Packaging material for food items containing permeating oils
CN102079418A (en) Multi-layer co-extruded paper-like liquid packaging film
WO2006007239A3 (en) Multi-layer, high barrier packaging materials
SA111320785B1 (en) A method of producing a packaging material for a retortable package
US20050252627A1 (en) Method for producing paper packaging material, lightproof paper packaging material, semi-paper packaging material and lightproof paper packaging container
US20030180507A1 (en) Packaging laminate for a retortable packaging carton
CN109203675A (en) The inkjet print image on the composite packaging surface using radiation curable ink
WO2008003025A2 (en) Packaging material for food items containing permeating oils
JP4358042B2 (en) Laminated body with indicator for heat treatment and method for producing the same
JP4489497B2 (en) Laminated body with indicator for heat treatment and method for producing the same
JP2005037624A (en) Label for in-mold molding and in-mold label molded container using the same
CN202662249U (en) Luminous identifying sticker
JP6045841B2 (en) Manufacturing method of lid for PTP packaging
CN112638656B (en) Laminated packaging material for liquid food, method for producing the same, printing method therefor, and package produced therefrom
US20230399158A1 (en) Unprinted Inkjet-Printable Fillable Pouches and Methods for Producing and Printing Said Pouches
CN201027038Y (en) Safe high-isolation plastics packaging film for liquid condition foods
WO2022154033A1 (en) Laminate and package body
CN202624939U (en) Packing material and packing component manufactured thereby
JP2007269348A (en) Packaging bag
JP2004149179A (en) Layered product for paper container

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130201

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140211

Year of fee payment: 5

FPAY Annual fee payment
FPAY Annual fee payment

Payment date: 20160205

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20170213

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20180212

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20190212

Year of fee payment: 10