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KR20080104674A - Easy Fill Film Manufacturing Equipment - Google Patents

Easy Fill Film Manufacturing Equipment Download PDF

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Publication number
KR20080104674A
KR20080104674A KR1020070051761A KR20070051761A KR20080104674A KR 20080104674 A KR20080104674 A KR 20080104674A KR 1020070051761 A KR1020070051761 A KR 1020070051761A KR 20070051761 A KR20070051761 A KR 20070051761A KR 20080104674 A KR20080104674 A KR 20080104674A
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South Korea
Prior art keywords
film
easy
pet film
compounding
fill
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Korean (ko)
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문공현
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주식회사 포스텍
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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • 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
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/04—Homopolymers or copolymers of ethene
    • C09D123/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/10—Homopolymers or copolymers of propene
    • C09D123/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C08J2367/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 프로필렌 용기뿐만 아니라 폴리에틸렌 테레프탈산 용기에 열 실링으로 접착하여 쉽게 이완되게는 이지필 필름의 제조방법에 관한 것으로서, 좀더 구체적으로 설명하면 폴리에틸렌 테레프탈산 수지를 콤파운딩 한 PET필름과 콤파운딩부에 폴리프로필렌수지 50%, 폴리에틸렌수지 50%, 브로킹방지제 0.2%, 슬립제 0.3%, 및 방담재 0.3%를 혼합하여 콤파운딩으로 토출된 필름을 엠보싱 롤 합쳐져 형성된 이지필 필름과, 상기 형성된 이지필 필름의 박리가 향상되도록 코로나방전의 공정을 거쳐 이지필 필름을 제조하는 방법에 관한 것이다.The present invention relates to a propylene container as well as a method for producing an easy-fill film to be easily relaxed by heat-sealing to a polyethylene terephthalic acid container, more specifically, the PET film and the compounding portion of the polyethylene terephthalic acid compounded compound 50% resin, 50% polyethylene resin, 0.2% anti-broking agent, 0.3% slip agent, and 0.3% antifogging material mixed with the embossed roll of the film discharged by compounding, and the peeling of the formed easy peel film It relates to a method for producing an easy-fill film through a process of corona discharge to improve.

Description

이지필 필름의 제조방법{ Manufacturing method of the easy peel film }Manufacturing method of the easy peel film}

도 1은 본 발명의 전체고정시스템.       1 is a total fixing system of the present invention.

도 2는 본 발명에 적용된 코로나 방전의 발췌 확대도이며.       Figure 2 is an enlarged excerpt of the corona discharge applied to the present invention.

도 3은 본 발명에 적용된 엠보싱 롤이다,       3 is an embossing roll applied to the present invention,

도 4는 본 발명에 적용된 엠보싱 롤의 확대 단면도.      4 is an enlarged cross-sectional view of an embossing roll applied to the present invention.

도 5는 본 발명은 PET필름과 이지필 필름이 접합된 상태의 확대 단면도.      Figure 5 is an enlarged cross-sectional view of the present invention bonded PET film and easy peel film.

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

1: PET필름 2: 공급부                         1: PET film 2: Supply part

3,3': 상,하부접착제롤 4: 프라이머부                         3,3 ': upper and lower adhesive roll 4: primer part

5: 건조실 6: 이지필 필름                         5: drying chamber 6: easy peel film

7: 콤파운딩부 8: 엠보싱 롤 9: 코로나방전부                         7: Compounding part 8: Embossing roll 9: Corona discharge part

본 발명은 프로필렌 용기뿐만 아니라 폴리에틸렌 테레프탈산 (이하 PET)용기에 대해서도 열 실링을 한 후 쉽게 박리될 수 있는 이지필 필름의 제조장치에 관한 것이다.     The present invention relates to an apparatus for producing an easy-fill film that can be easily peeled off after heat sealing not only a propylene container but also a polyethylene terephthalic acid (PET) container.

일반적으로 식품포장에 대한 개념은 식품의 장기 보존성을 유지하기 위한 것으로, 특히, 식품용기에 진공포장을 선호하며, 또한 용기 내부에 있는 내용물을 확인할 수 있도록 투명필름으로 포장하여 왔다.      In general, the concept of food packaging is to maintain the long-term preservation of food, in particular, the vacuum packaging is preferred in food containers, and has been packaged with a transparent film to check the contents inside the container.

그러나, 일반적인 식품포장 필름은 용기와 열 실링한 후 필름이 용기와 접찹력의 강도가 높아 일반 소비자는 식품용기에 부착된 필름을 도구를 이용 포장된 필름을 제거하여야 하는 불편함이 있었다.      However, the general food packaging film has a disadvantage of having to remove the packaged film using a tool attached to the food container because the film has a high strength of the container and the adhesive strength after heat sealing the container.

따라서 본 발명은 식품용기와 열 실링하여 접착되는 필름을 이지필 필름으로 접착하여 일반 소비자가 쉽게 박리될 수 있도록 하는 이지필 필름의 제조방법에 관한 것을 제공함에 그 목적이 있는 것이다.Accordingly, an object of the present invention is to provide a method for manufacturing an easy-fill film, which allows a general consumer to easily peel off by bonding a film to a food container and heat-sealed to an easy-fill film.

본 발명은 상기 목적을 달성하기 위한 이지필 필름 제조 방법은 통상의 PET필름이 권취되어 배치된 공급부와, 상기 PET필름 상부표면에 상, 하부접착롤에 의해 접착제가 도포공정을 갖는 프라이머부와, 상기 PET필름 상부표면에 도포된 접착제의 휴발성을 건조시키는 건조실과, 상기 PET필름과 콤파운딩부에서 토출된 이지필 필름이 합쳐지는 압출 수단과 상기 압출수단에 의해 생성된 필름의 박리가 향상 되도록 코로나 방전부로 구성된 것으로 되어있다.      The present invention is a method for producing an easy-fill film for achieving the above object is a conventional PET film is wound around the supply portion is arranged, the upper and lower surfaces of the PET film, the primer portion having an adhesive coating process by the upper and lower adhesive rolls, and Corona room to improve the peeling of the film produced by the extrusion means and the extrusion means that the drying chamber for drying the tackiness of the adhesive applied to the upper surface of the PET film and the easy-fill film discharged from the compounding unit is combined It consists of everything.

이하, 본 발명의 첨부된 도면을 참고로 하여 상세히 설명하면 다음과 같다.    Hereinafter, described in detail with reference to the accompanying drawings of the present invention.

도 1은 본 발명의 전체고정시스템이고, 도 2는 본 발명에 적용된 코로나 방전의 발췌 확대도이며, 도 3은 본 발명에 적용된 엠보싱 롤이다 도 4는 본 발명에 적용된 엠보싱 롤의 확대단면도이며, 도 5는 본 발명의 공정에 의해 형성된 PET필름과 이지필 필름의 결합 된 확대 단면도이다.      1 is an overall fixing system of the present invention, Figure 2 is an enlarged view of the excerpt of the corona discharge applied to the present invention, Figure 3 is an embossing roll applied to the present invention Figure 4 is an enlarged cross-sectional view of the embossing roll applied to the present invention, 5 is an enlarged cross-sectional view of the PET film and the easy-fill film formed by the process of the present invention.

도시된 바와 같이 본 발명의 선단에는 PET필름(1)이 권취되어 배치된 공급부(2)가 배치되고, 상.하부 접착제롤(3)(3')에 의해 상기 PET필름(1)의 상부표면에 접착제가 도포하는 프라이머부(4)가 배치되며, 상기 PET필름(1)에 도포된 접착제의 휴발성을 건조하기 위한 건조실(5)이 배치되고, 본 공정의 중앙부에는 이지필 필름(6)이 토출하는 콤파운딩부(7)가 배치되며, 상기 PET필름(1)과 이지필 필름(6)이 합쳐지는 압출 수단에는 엠보싱 롤(8)이 배치되며, 상기 엠보싱 롤(8)에 의해 이지필 필름(6)의 상부표면에 미세한 요철을 형성하기 위한 코로나방전부(9)가 배치되어 있다.     As shown in the drawing, the feed part 2 is formed by winding the PET film 1, and the upper surface of the PET film 1 is formed by upper and lower adhesive rolls 3 and 3 '. A primer portion 4 to which the adhesive is applied is disposed, and a drying chamber 5 for drying the latency of the adhesive applied to the PET film 1 is disposed, and an easy-fill film 6 is disposed at the center of the process. The compounding part 7 to discharge is arrange | positioned, The embossing roll 8 is arrange | positioned at the extrusion means by which the said PET film 1 and the easy peel film 6 are combined, and the easy peeling film ( On the upper surface of 6), a corona discharge portion 9 for forming fine unevenness is arranged.

상기와 같이 구성된 본 발명의 실시예는 다음과 같다.      Embodiments of the present invention configured as described above are as follows.

공급부(2)에는 PET필름(1)을 배치하고, 콤파운딩부(7)에는 폴리프로필렌수지 50%, 폴리에틸렌수지 50%, 브로킹방지제 0.2%, 슬립제 0.3%, 방담재 0.3%의 조성물로 공급이 완료된 상태에서, 상기 공급부(1)에서는 PET필름(2)을 프라이머부(4)로 이송시킨다. 이때 프라이머부(4)에 배치된 상, 하부접착제롤(3)(3‘)에서는 PET필름(2)상부표면에 접착제를 도포 접착층(a)이 형성된다. 이어서 프라이머부(4) 상부에 배치된 건조실(5)에서는 PET필름(1) 상부표면에 도포된 접착제의 휴발성을 건조시키게 된다.      The PET film 1 is disposed on the supply part 2, and the compounding part 7 is composed of 50% polypropylene resin, 50% polyethylene resin, 0.2% anti-broking agent, 0.3% slip agent, and 0.3% antifogging material. In a state where the supply is completed, the supply unit 1 transfers the PET film 2 to the primer unit 4. At this time, in the upper and lower adhesive rolls 3 (3 ') disposed on the primer part 4, an adhesive layer (a) is formed by applying an adhesive on the upper surface of the PET film (2). Subsequently, in the drying chamber 5 disposed above the primer part 4, the freancy of the adhesive applied to the upper surface of the PET film 1 is dried.

한편, 콤파운딩부(7)에는 폴리프로필렌수지 50%, 폴리에틸렌수지 50%, 브로킹방지제 0.2%, 슬립제 0.3%, 방담재 0.3%를 콤파운딩 하여 이지필 필름(6)이 토출된다.       Meanwhile, the compounding portion 7 is compounded with 50% polypropylene resin, 50% polyethylene resin, 0.2% anti-broking agent, 0.3% slip agent, and 0.3% antifogging material to discharge the easy-fill film 6.

상기 건조실(5)토출된 PET필름(1)과 이지필 필름(6)은 압출 수단인 엠보싱 롤(8)로 이송하여 PET필름(1)의 접착제가 도포된 접착층(a)에 결합된다. 이때 엠보싱 롤(8)은 이지필 필름(6)의 상부표면에 요철을 형성케 하는 것이다.     The PET film 1 and the easy-fill film 6 discharged from the drying chamber 5 are transferred to an embossing roll 8 which is an extrusion means, and bonded to the adhesive layer a to which the adhesive of the PET film 1 is applied. At this time, the embossing roll 8 is to form the unevenness on the upper surface of the easy peel film (6).

상기 접합된 두개의 필름이 엠보싱 롤(8)을 통과한 후 이지필 필름(6)의 상부표면에 형성된 요철이 매쉬 간격이 크기 때문에 용기와 열 씰링한 후 박리가 쉽지 않는 것이다. 따라서 좀더 매쉬 간격을 미세하게 하는 코로나방전부(9)를 통과하여 이지필 필림이 박리가 향상될 수 있도록 하였다.After the bonded two films pass through the embossing roll 8, the irregularities formed on the upper surface of the easy-fill film 6 have a large mesh spacing, so that the peeling is not easy after heat sealing with the container. Therefore, the peeling of the easy peel film was improved by passing through the corona discharge part 9 which makes the mash interval finer.

이상에서 설명한 바와 같이 본 발명은 식품용기와 열 실링하여 접착되는 필름을 이지필 필름으로 접착하여 일반 소비자가 쉽게 박리 될 수 있도록 하는 효과가 있다.As described above, the present invention has an effect of allowing the general consumer to easily peel off by adhering a film that is adhered to the food container by heat sealing with an easy-fill film.

Claims (2)

폴리에틸렌 테레프탈산을 콤파운딩 하여 생성된 PET필름(1)에 있어서,        In the PET film (1) produced by compounding polyethylene terephthalic acid, 상기 PET필름(1)이 권취되어 배치된 공급부(2)와,         A supply part 2 in which the PET film 1 is wound and disposed; 상기 PET필름(1) 상부표면에 상, 하부접착롤(3)(3')에 의해 접착제를 도포하는 프라이머부(4)와,  Primer portion (4) for applying the adhesive on the upper surface of the PET film (1) by the upper and lower adhesive rolls (3, 3 '), 상기 PET필름(2) 상부표면에 도포된 접착제의 유해한 휴발성을 건조하는 건조실(5)과,  A drying chamber (5) for drying the harmful contingency of the adhesive applied to the upper surface of the PET film (2), 콤파운딩부(7)에서는 폴리프로필렌수지 50%, 폴리에틸렌수지 50%, 브로킹방지제 0.2%, 슬립제 0.3%, 방담재 0.3%의 조성물로 콤파운딩 하여 토출된 필름과, 상기 PET필름(2)이 합쳐져 이지필 필름(6)을 생성하는 압출수단과, In the compounding unit 7, the film discharged by compounding with a composition of 50% polypropylene resin, 50% polyethylene resin, 0.2% anti-broking agent, 0.3% slip agent, 0.3% antifogging material, and the PET film (2). Extrusion means for joining together to produce an easy-fill film (6), 상기 압출 수단에 의해 생성된 이지필 필름의 박리를 높이기 위한 코로나 방전부(9)로 구성된 것을 특징으로 이지필 필름의 제조방법.And a corona discharge portion (9) for enhancing the peeling of the easy peel film produced by the extrusion means. 제 1항에 있어서,The method of claim 1, 상기 압출수단으로는 엠보싱 롤(8)이 배치된 것을 특징으로 하는 이지필 필름의 제조방법.Embossing roll (8) is disposed as the extrusion means, the manufacturing method of the easy-fill film.
KR1020070051761A 2007-05-29 2007-05-29 Easy Fill Film Manufacturing Equipment Ceased KR20080104674A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101713864B1 (en) * 2016-10-13 2017-03-09 주식회사 포스텍 Manufacturing apparatus for easy-peel film
CN116639384A (en) * 2023-05-26 2023-08-25 东莞市欣荣天丽科技实业有限公司 A deoxidizing bottle cap for food
KR102576103B1 (en) * 2023-03-03 2023-09-11 주식회사 포스텍 Manufacturing apparatus for pet easy-peel film and pet easy-peel film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101713864B1 (en) * 2016-10-13 2017-03-09 주식회사 포스텍 Manufacturing apparatus for easy-peel film
KR102576103B1 (en) * 2023-03-03 2023-09-11 주식회사 포스텍 Manufacturing apparatus for pet easy-peel film and pet easy-peel film
CN116639384A (en) * 2023-05-26 2023-08-25 东莞市欣荣天丽科技实业有限公司 A deoxidizing bottle cap for food

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