KR100291698B1 - Method for manufacturing organic coated metal plate for 3-piece can - Google Patents

Method for manufacturing organic coated metal plate for 3-piece can Download PDF

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Publication number
KR100291698B1
KR100291698B1 KR1019970056354A KR19970056354A KR100291698B1 KR 100291698 B1 KR100291698 B1 KR 100291698B1 KR 1019970056354 A KR1019970056354 A KR 1019970056354A KR 19970056354 A KR19970056354 A KR 19970056354A KR 100291698 B1 KR100291698 B1 KR 100291698B1
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South Korea
Prior art keywords
resin film
metal plate
coated metal
coated
film
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KR1019970056354A
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Korean (ko)
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KR19990034694A (en
Inventor
이남기
안중걸
손양수
이연대
전완묵
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손봉락
동양석판주식회사
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Priority to KR1019970056354A priority Critical patent/KR100291698B1/en
Priority to JP32179497A priority patent/JP3076780B2/en
Priority to TW86117425A priority patent/TW520323B/en
Priority to CN97120189A priority patent/CN1106277C/en
Publication of KR19990034694A publication Critical patent/KR19990034694A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, 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
    • 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
    • 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
    • B32B15/09—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 polyesters
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • 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
    • B32B2439/40—Closed containers
    • B32B2439/66—Cans, tins

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: A method for manufacturing an organic coated metal plate for a 3-piece can is provided in which a part except the welding part is coated with a band shaped organic during manufacturing of a 3-piece can in coating an organic on one surface or both surfaces of the metal plate. CONSTITUTION: The method for manufacturing an organic coated metal plate comprises the processes of coating a band shaped organic on one surface of both surfaces of a black plate or a cold rolled plate except a welding part during manufacturing of a 3-piece can; and plating the welding part on which the organic(2) is not coated, wherein a chromate coating film(4) is chemically or electrically formed on the surface of the black plate or the cold rolled plate(1) so as to improve corrosion resistance and film cohesiveness, the plating is consisted of one or more elements selected from tin and nickel, the resin film consisted of one or more organics selected from polyester, polyolefin, polypropylene and nylon resin films, wherein an adhesive(3) is interposed between the organic and the metal plate(1).

Description

용접관용 수지필름 피복 금속판의 제조방법Manufacturing method of resin film coated metal sheet for welding pipe

본 발명은 캔(Can) 제작시 사용되는 용접관용 수지필름 피복 금속판의 제조방법에 관한 것으로, 보다 상세하게는 금속판의 양면 또는 단면에 수지필름을 피복시키는 데 있어서 용접관(3-Piece Can) 제조시의 용접부를 남겨두고 띠 모양으로 피복시킨후 필요에 따라서는 수지필름이 피복되지 않은 용접부에 주석 도금이나 니켈 도금 또는 니켈 및 주석 도금을 실시함으로써 이루어지는 용접관용 수지필름 피복 금속판의 제조방법에 관한 것이다.The present invention relates to a method for producing a resin film-coated metal sheet for welding pipes used in the production of cans, and more particularly, to manufacturing a 3-pipe can in coating a resin film on both or both surfaces of a metal plate. The present invention relates to a method for producing a resin film-coated metal sheet for welded pipe, which is formed by coating a strip in the form of a strip of welding at the time and then performing tin plating, nickel plating, or nickel and tin plating on a weld where the resin film is not coated, as necessary. .

종래에는 도 1 도시와 같이 용접관용 수지필름 피복 금속판을 제조하는데 있어서 금속판(1)의 양면에 먼저 주석 또는 니켈 및 주석 도금을 실시한 후 도장 및 인쇄하거나, 또는 금속판의 양면에 주석 또는 니켈 및 주석 도금을 실시하여 도금층(5)을 형성한 후 용접관 제조시의 용접부만 남겨두고 띠 모양의 수지 필름을 피복시켜 수지필름층(2)을 형성시키는 방법등이 사용되어 왔다.Conventionally, in manufacturing a resin film-coated metal sheet for welding pipes as shown in FIG. 1, tin or nickel and tin plating are first performed on both sides of the metal plate 1, followed by painting and printing, or tin or nickel and tin plating on both sides of the metal plate. The method of forming the resin film layer 2 by coating the strip | belt-shaped resin film and leaving only the welding part at the time of manufacture of a weld pipe after forming the plating layer 5 by performing the following has been used.

그러나 이러한 방법으로 용접관용 금속판을 제조시 용접성을 부여하기 위하여 금속판 전체에 주석등의 도금을 실시하여야 하므로 용접부를 제외한 나머지 부분, 즉 도장 및 인쇄 부분 또는 수지필름 피복 부분의 불필요한 도금으로 인해 막대한 양의 주석 또는 니켈이 낭비되며 제조 원가가 상승되는 문제가 있었다.However, in order to provide weldability when manufacturing the metal sheet for welding pipes in this way, the entire metal sheet should be plated with tin, etc. There was a problem in that tin or nickel was wasted and manufacturing costs increased.

뿐만 아니라 용접관용 수지필름 피복 금속판의 경우 먼저 주석 도금 라인에서 주석을 도금한 후 라미네이트 라인에서 수지필름을 피복시킴으로써 제조 공정이 복잡하고 생산성에 문제가 있었다.In addition, in the case of the resin film-coated metal sheet for welding tubes, first, the tin is plated on the tin plating line, and then the resin film is coated on the laminate line, which causes a complicated manufacturing process and a problem in productivity.

또한, 2-피스 캔(2-Piece Can)용 수지필름 피복 금속판의 경우 기존 2-피스 캔 제관 설비와 다른 별도의 수지필름 피복 금속판용 제관 설비가 필요하며 제관후 별도의 인쇄 공정이 필요하다. 뿐만 아니라 열접착성 및 가공성의 확보를 위하여 고가의 첨가제를 사용해야 하므로 수지필름의 제조 비용이 상승되는 등의 문제가 있었다.In addition, in the case of a 2-piece can resin film-coated metal sheet is required a separate film manufacturing equipment for the resin film-coated metal sheet different from the existing two-piece can tube manufacturing equipment, and a separate printing process is required after the tube. In addition, since expensive additives must be used in order to secure thermal adhesiveness and processability, there is a problem such as an increase in manufacturing cost of the resin film.

본 발명은 상기 설명한 종래 기술의 문제점을 해결하기 위하여 이루어진 것으로, 금속판의 전면에 도금을 실시함으로써 불필요한 부분의 주석 및 니켈 등의 금속이 낭비되는 것을 막고 도장 및 인쇄 공정에서 발생하는 유해 물질의 배출을 억제할 수 있을 뿐만 아니라 새로운 제관 설비의 추가 건설 없이 기존의 제관 설비를 그대로 이용할 수 있는 새로운 용접관용 수지필름 피복 금속판의 제조방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the problems of the prior art described above, by plating on the front surface of the metal plate to prevent the waste of metal such as tin and nickel of unnecessary parts and to prevent the discharge of harmful substances generated in the painting and printing process. It is an object of the present invention to provide a method for manufacturing a resin film-coated metal sheet for a new welded pipe that can be suppressed and that can be used as it is without additional construction of a new production facility.

상기 목적을 달성하기 위하여 본 발명에서는 용접관 제조시의 용접부를 제외한 나머지 부분에 띠 모양의 수지필름을 피복시킨후 수지필름이 피복되지 않은 용접부에 필요에 따라서 용접성을 향상시키기 위해 니켈 또는 주석 또는 니켈 및 주석을 도금하여 용접관용 수지필름 피복 금속판을 제조하는 기술을 착안하기에 이르렀다.In order to achieve the above object, in the present invention, a band-shaped resin film is coated on the remaining portions except for the welded portion when the welded tube is manufactured, and then nickel or tin or nickel is used to improve weldability as needed. And the technique of plating the tin to produce a resin film-coated metal sheet for welding tubes.

또한 용접관 제조시의 용접부를 제외한 나머지 부분의 캔의 외면에는 인쇄가 된 수지필름을 띠 모양으로 피복시키는 것에 의해 제관후 별도의 인쇄 공정이 생략되므로 생산 공정의 단축 및 제조 원가의 획기적인 절감을 가져올 수 있다.In addition, by coating the printed resin film in a band shape on the outer surface of the can, except for the welded part, the separate printing process is omitted after the production process. Therefore, the production process and the manufacturing cost can be drastically reduced. Can be.

도 1 은 종래 기술에 의한 용접관용 수지필름 피복 금속판을 보이는 단면도,1 is a cross-sectional view showing a resin film coated metal sheet for welding tubes according to the prior art,

도 2 내지 도 9는 본 발명에 따라 제조된 용접관용 수지필름 피복 금속판의 여러 실시예를 보이는 단면도,2 to 9 is a cross-sectional view showing various embodiments of the resin film-coated metal sheet for welding tubes produced according to the present invention;

도 10은 본 발명에 따라 제조된 용접관용 수지필름 피복 금속판의 평면도이다.10 is a plan view of a resin film-coated metal sheet for welding tubes manufactured according to the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1:금속판 2:수지필름 3:접착제 4:화성처리피막1: Metal plate 2: Resin film 3: Adhesive 4: Chemical conversion coating

5:도금층 6:용접부 7:인쇄층5: Plating layer 6: Welding part 7: Printed layer

이하에서는 첨부 도면과 관련하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 캔용 소재로 사용되는 금속판에 수지필름을 피복시키는 방법에 있어서 금속판의 전면에 용접성 및 내식성을 향상시키기 위한 도금을 실시한후 수지필름을 피복시키는 대신에, 용접관 제관시의 용접부를 제외한 나머지 부분에 수지필름을 피복시킴으로써 수지필름이 피복된 부분의 불필요한 주석 또는 니켈 등을 절약하는 것이 가능하였다.In the method of coating the resin film on the metal plate used as the material for the can of the present invention, the surface of the metal plate is subjected to plating to improve weldability and corrosion resistance, and then the resin film is coated instead of the resin film. By coating the resin film on the portion, it was possible to save unnecessary tin, nickel, or the like of the portion on which the resin film was coated.

도 2 내지 도 9 에는 본 발명에 따라 제조된 수지필름 피복 금속판의 다양한 실시예가 단면으로 도시되고, 도 10 에는 본 발명에 따라 제조된 수지필름 피복 금속판이 평면으로 도시되고 있다.2 to 9 show various embodiments of the resin film-coated metal plate produced in accordance with the present invention in cross section, and FIG. 10 shows a resin film-coated metal plate made in accordance with the present invention in plan view.

금속판(1)은 주석도금용 원판(Black Plate) 또는 냉연강판(Cold Rolled Plate)을 전처리 없이 그대로 사용하거나 또는 밀착력을 개선하기 위해 통상의 탈지, 산세를 행한다.The metal plate 1 uses a black plate or a cold rolled plate as it is without pretreatment or performs normal degreasing and pickling to improve adhesion.

그러나 수지필름의 종류 및 접착제 사용 여부에 따라 접착 조건이 달라질 경우에는 금속판(1)으로 냉연강판 또는 주석도금용 원판을 그대로 사용하지 않고 별도의 처리를 행한후 수지필름(2)을 피복시킬 수도 있다. 즉, 수지필름을 금속판에 피복시키기 위하여 금속판을 고온으로 장기간 가열함으로써 금속판의 표면에 산화막이 생성되어 금속판과 수지필름의 밀착력을 떨어뜨리거나 또는 금속판의 변색등이 발생할 수가 있다. 이러한 경우 도 4, 도 5 및 도 8, 도 9 도시와 같이, 수지필름을 피복시키기에 앞서 전기적 또는 화학적인 방법으로 크로메이트 피막 또는 인산염 피막 등의 화성처리 피막(4)을 형성시킨 다음 수지필름을 피복시킴으로써 금속판의 변색이나 밀착력 약화를 방지하는 것이 가능하다.However, when the adhesion conditions vary depending on the type of resin film and whether the adhesive is used, the resin film 2 may be coated after a separate treatment without using a cold rolled steel sheet or a tin plating plate as it is. . That is, by heating the metal plate at a high temperature for a long time in order to coat the resin film on the metal plate, an oxide film is formed on the surface of the metal plate, thereby reducing the adhesion between the metal plate and the resin film, or discoloration of the metal plate. In this case, as shown in FIGS. 4, 5, 8, and 9, prior to coating the resin film, a chemical conversion treatment film 4 such as a chromate coating or a phosphate coating is formed by an electrical or chemical method. By coating, it is possible to prevent discoloration of the metal plate and weakening of adhesion.

크로메이트 피막의 형성은 중크롬산 소다 또는 칼륨액, 무수크롬산액 등에서 2∼30 초간 침적함으로써 행해질 수 있으며, 전기적으로 크로메이트 피막을 형성시킬 경우 pH 2.5∼5.5 의 중크롬산 소다액에서 전류 밀도 2∼8 A/d㎡ 로 0.5∼3 초 전해함으로써 얻어질 수 있다.The formation of the chromate coating can be carried out by dipping for 2 to 30 seconds in soda or potassium solution, chromium anhydride solution, or the like. When forming the chromate film electrically, the current density is 2 to 8 A / d in the dichromate solution of pH 2.5 to 5.5. It can be obtained by electrolysis at 0.5 to 3 seconds in m 2.

인산염 피막의 형성은 인산철(Ferrous Phosphate), 인산망간(Manganese Phosphate), 인산아연(Zinc Phosphate), 인산니켈(Nickel Phosphate),인산칼슘( (Calcium Phosphate), 인산(Phosphoric Acid), 인산암모늄(Ammonium Phosphate) 중의 1 종 또는 2 종 이상을 혼합한 액에 침적 또는 전해하여 얻어진다.Formation of the phosphate coating is made of ferrous phosphate, manganese phosphate, zinc phosphate, nickel phosphate, calcium phosphate, phosphate and ammonium phosphate. It is obtained by immersing or electrolyzing in the liquid which mixed 1 type (s) or 2 or more types in Ammonium Phosphate).

100∼280℃로 가열된 냉연강판 또는 주석도금용 원판의 단면 또는 양면에 용접관 제조시의 용접부 2∼4㎜를 제외한 띠 모양으로 수지필름을 연속하여 라미네이트롤을 이용하여 금속판에 피복시키 후 20∼70℃ 의 물에 급랭 또는 공기 중에서 서랭(금속을 고온으로 가열하였다가 서서히 식힘)할 수도 있다.The resin film was continuously coated on a metal plate by using a laminate roll in a strip shape except for the welded part 2 to 4 mm at the time of manufacturing a weld tube on one or both sides of a cold rolled steel sheet or a tin plate original plate heated to 100 to 280 ° C. It may also be quenched in water at ˜70 ° C. or annealed in air (the metal is heated to a high temperature and then gradually cooled).

이때 필요에 따라서 수지필름과 금속판의 충분한 밀착력 확보를 위하여 1차가열에 이어서 2차가열을 한후 급랭 또는 서냉할 수도 있다.In this case, in order to secure sufficient adhesion between the resin film and the metal plate, the secondary heating may be performed after the first heating and then rapidly cooled or slow cooled.

금속판의 가열은 공지의 유도가열 코일 또는 롤, 저항 가열 방식, 가열 오븐등을 이용할 수 있다.The heating of a metal plate can use a well-known induction heating coil or a roll, resistance heating system, a heating oven, etc.

2차가열은 통상 120∼300℃에서 2∼30 초 정도 행해진다.Secondary heating is normally performed at 120-300 degreeC for about 2 to 30 second.

급랭의 방법은 통상 수냉식을 많이 이용하나 그외에 기름 또는 공기를 이용하는 냉각방식을 사용하여도 무방하다. 수냉식을 이용할 경우 냉각수의 온도는 15∼60℃ 정도가 적당하다. 수지필름의 종류 및 접착제에 따라서 서랭이 요구되는 경우에 공기중에서 서랭한다.The quenching method generally uses a lot of water cooling, but may also use a cooling method using oil or air. In the case of using water cooling, the temperature of cooling water is suitably about 15 to 60 ° C. If cooling is required depending on the type of resin film and adhesive, cooling is performed in air.

본 발명에서 사용되고 있는 수지필름(2)은 캔 제조시 내용물의 맛과 향기에 대한 보존성과 금속판에 대한 밀착력 및 가공 밀착력이 우수한 폴리올레핀, 폴리에스테르, 폴리프로필렌, 나일론 수지필름중의 1 종 또는 2 종 이상으로 이루어진다.The resin film 2 used in the present invention is one or two of polyolefin, polyester, polypropylene, and nylon resin films having excellent preservation of taste and aroma of the contents of the can and excellent adhesion to metal plates and processing adhesion. It is made up of the above.

필요에 따라서는 상기 수지필름의 열접착성을 개선하기 위하여 일부 성분의 변형이 이루어지기도 한다. 예를 들면 폴리에스테르 수지필름의 열접착성을 향상시키기 위해서 테레프탈산 성분의 10∼70%를 이소프탈산, 프탈산, 호박산, 아젤라산, 아디프산, 세바스산, 1,4-싸이클로핵산 디카르복실산, 트리멜리트산 안하이드라이드 중에서 1 종 또는 2 종 이상으로 대체함으로써 열접착성을 개선할 수가 있다.If necessary, some components may be modified in order to improve thermal adhesiveness of the resin film. For example, in order to improve the thermal adhesiveness of a polyester resin film, 10 to 70% of the terephthalic acid component isophthalic acid, phthalic acid, succinic acid, azelaic acid, adipic acid, sebacic acid, 1,4-cyclonucleic acid dicarboxylic acid The heat adhesiveness can be improved by replacing one or two or more of the trimellitic anhydrides.

폴리올레핀 수지필름의 경우 카르복실기 또는 무수물을 함유한 산변형 폴리올레핀 수지로써 접착성을 개선할 수가 있다.In the case of the polyolefin resin film, the adhesiveness can be improved by using an acid-modified polyolefin resin containing a carboxyl group or anhydride.

도 3, 도 5 및 도 7, 도 9 도시와 같이, 내부층에 접착성이 있는 접착제(3)층을 개재하여 피복 금속판을 제조할 경우 열접착성 필름 보다 경제적으로 용접관용 수지필름 피복 금속판을 생산하는 것이 가능하다. 접착층은 결정화도 20∼30%의 무정형 폴리에스테르 수지층이거나 에폭시계 혹은 우레탄계 혹은 산변형 폴리올레핀계, 코폴리아미드계, 코폴리에스테르계의 접착제층 등에서 선택된 1 종 또는 2 종 이상으로 구성하는 것이 가능하다.3, 5 and 7, as shown in Figure 9, when manufacturing the coating metal plate through the adhesive (3) layer having an adhesive on the inner layer, the resin film coating metal plate for welded pipes more economically than the heat-adhesive film. It is possible to produce. The adhesive layer may be composed of one or two or more selected from an amorphous polyester resin layer having a crystallinity of 20 to 30% or an epoxy, urethane, or acid-modified polyolefin, copolyamide, or copolyester adhesive layer. .

수지필름이 피복되지 않은 용접부에는 도 6 내지 도 9 도시와 같이, 내식성과 용접성을 향상시키기 위해 필요에 따라 통상의 방법으로 니켈 또는 주석 또는 니켈 및 주석 도금(5)을 실시할 수 있다. 니켈 도금을 실시할 경우 니켈의 부착량은 0.2∼2.0 g/㎡ 이며 주석 도금을 실시할 경우 주석의 부착량은 0.5∼3.5 g/㎡ 이며, 니켈 및 주석 도금을 실시할 경우 니켈 부착량은 40∼500 mg/㎡ 이며 주석 부착량은 0.2∼2.0 g/㎡ 이다.6 to 9, nickel or tin, or nickel and tin plating 5 may be applied to the welded portion not covered with the resin film in a conventional manner as necessary to improve corrosion resistance and weldability. In case of nickel plating, the amount of nickel is 0.2-2.0 g / m2, and in the case of tin plating, the amount of tin is 0.5-3.5 g / m2. In case of nickel and tin plating, the amount of nickel is 40-500 mg. / ㎡ and tin deposition amount is 0.2 to 2.0 g / ㎡.

수지필름 피복 금속판의 생산에서 용접에 까지 걸리는 시간이 짧을 경우, 또는 고속 용접이 아닌 경우에는 내식성과 용접성을 향상시키기 위한 도금을 실시하지 않을 수도 있다. 이러한 경우에는 수지필름을 피복하기 전에 전처리로서 크로메이트 피막이나 인산염 피막을 금속판에 형성한 다음 수지필름을 피복할 수 있다.When the time taken from the production of the resin film-coated metal sheet to welding is short, or in the case of high speed welding, plating may not be performed to improve corrosion resistance and weldability. In this case, before coating the resin film, a chromate film or a phosphate film may be formed on the metal plate as a pretreatment, and then the resin film may be coated.

또한, 수지필름(2)과 금속판(1) 사이에 인쇄층(7)을 개재시킬 수 있는데, 이 인쇄층(7)은 접착제(3)와 수지필름(2) 사이 또는 화성처리피막(4)과 수지필름(2) 사이에 개재시킬 수도 있다.In addition, a printing layer 7 may be interposed between the resin film 2 and the metal plate 1, which is formed between the adhesive 3 and the resin film 2 or the chemical conversion coating film 4. And may be interposed between the resin film 2.

이하에서는 실시예와 관련하여 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.

실시예 1Example 1

본 발명에 의한 수지필름 피복 금속판을 아래와 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared as follows.

수지필름을 피복시키기 전에 주석 도금용 원판을 인산암모늄 30∼100 g/l, 인산 20∼80 g/l 으로 이루어진 용액에 5∼20 초간 침적처리함으로써 화성처리 피막을 형성하였다. 수지필름은 한쪽면, 즉 금속판과 접착되는 면에는 무정형 폴리에스테르계 접착제가 0.5∼3㎛ 의 두께로 도포되어 있고 접착제와 금속판의 사이에 4∼10 도의 그라비아 인쇄가 되어 있으며, 필름의 그 반대면에는 오버코팅이 된 두께 10∼25㎛의 폴리프로필렌 필름을 금속판과 라미네이트시키기 전에 용접관 제관시의 용접부를 절단해내면서 120∼250℃로 가열된 주석 도금용 원판의 양면에 접착제가 금속판과 마주 보게 하여 라미네이트시켰다. 용접부의 폭은 2∼4 ㎜ 이며, 필름의 폭은 160∼205 ㎜ 로 하였다. 캔 외면의 그라비아 인쇄는 수지필름과 접착제 사이에 개재시키거나 또는 필름의 외면에 인쇄 및 오버코팅을 행할 수가 있으나 일반적으로 인쇄면을 보호하기 위해 접착제와 수지필름 사이에 인쇄층을 개재시키고 필름의 바깥면에는 오버코팅을 행한다. 폴리프로필렌 필름을 라미네이트시킨 뒤 다시 금속판을 150∼300℃로 가열하여 2차 가열을 실시한후 20∼70℃의 물에 급랭하였다. 용접부의 용접성을 향상시키기 위하여 수지필름이 피복되지 않은 용접부에 통상의 방법으로 부착량 1.0∼2.5 g/㎡ 의 주석 도금을 실시함으로써 용접부에 주석 도금이 이루어진 용접관용 수지필름 피복 금속판을 제조하였다.Before coating the resin film, a chemical conversion coating was formed by depositing a tin plating disc in a solution composed of 30 to 100 g / l ammonium phosphate and 20 to 80 g / l phosphoric acid for 5 to 20 seconds. The resin film is coated with an amorphous polyester adhesive with a thickness of 0.5 to 3 μm on one side, that is, the side to be bonded to the metal plate, and has a gravure printing of 4 to 10 degrees between the adhesive and the metal plate. The adhesive is placed on both sides of the original plate for tin plating heated to 120 ~ 250 ℃ while cutting the welding part during welding pipe making before laminating a polypropylene film having a thickness of 10-25 μm overcoated with the metal plate. It was laminated. The width of the weld portion was 2 to 4 mm, and the width of the film was 160 to 205 mm. Gravure printing on the outside of the can can be interposed between the resin film and the adhesive, or printing and overcoating on the outside of the film, but in general, a print layer is interposed between the adhesive and the resin film to protect the printing surface and the outside of the film. The surface is overcoated. After laminating the polypropylene film, the metal plate was further heated to 150 to 300 占 폚 and subjected to secondary heating, followed by quenching in water of 20 to 70 占 폚. In order to improve the weldability of the welded portion, a resin film-coated metal sheet for welding tube, in which tin plating was formed on the welded portion, by tin plating with an adhesion amount of 1.0 to 2.5 g / m 2 was applied in a conventional manner to the welded portion not coated with the resin film.

실시예 2Example 2

본 발명에 의한 수지필름 피복 금속판을 아래의 조건으로 실시예 1 과 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared in the same manner as in Example 1 under the following conditions.

금속판 : 냉연강판Metal Plate: Cold Rolled Steel Sheet

화성처리 : 중크롬산 소다 20∼30 g/l 용액에 2∼5 초간 침적Chemical conversion treatment: Soak in 20 ~ 30 g / l solution of Sodium Dichromate for 2 ~ 5 seconds

필름 : 2층 구조 폴리에스테르 필름, 하부층은 이소프탈산 20∼80%의 폴리에틸렌 테레프탈레이트 수지필름 1∼5㎛, 상부층은 이축 배향 폴리에틸렌 테레프탈레이트 수지필름 10∼20 ㎛Film: 2-layer polyester film, lower layer is 20 to 80% isophthalic acid polyethylene terephthalate resin film 1 to 5 탆, upper layer is biaxially oriented polyethylene terephthalate resin film 10 to 20 탆

라미네이트 온도 : 1차 가열 : 150∼250℃, 2차 가열 : 180∼300℃Lamination Temperature: Primary Heating: 150 to 250 ° C, Secondary Heating: 180 to 300 ° C

도금 : 니켈 20∼80 mg/㎡, 주석 1.0∼2.5 g/㎡Plating: 20 to 80 mg / m2 nickel, 1.0 to 2.5 g / m2 tin

실시예 3Example 3

본 발명에 의한 수지필름 피복 금속판을 아래의 조건으로 실시예 1 과 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared in the same manner as in Example 1 under the following conditions.

금속판 : 주석도금용 원판Metal plate: Original plate for tin plating

필름 : 폴리프로필렌 필름 두께 10∼25㎛Film: Polypropylene film thickness 10-25 탆

접착제 : 에폭시계 접착제 0.5∼3㎛Adhesive: Epoxy Adhesive 0.5 ~ 3㎛

라미네이트 온도 : 1차 가열 : 100∼250℃, 2차 가열 : 150∼250℃Lamination Temperature: Primary Heating: 100-250 ° C, Secondary Heating: 150-250 ° C

도금 : 니켈 1.0∼2.5 g/㎡Plating: Nickel 1.0-2.5 g / ㎡

실시예 4Example 4

본 발명에 의한 수지필름 피복 금속판을 아래의 조건으로 실시예 1 과 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared in the same manner as in Example 1 under the following conditions.

금속판 : 주석도금용 원판Metal plate: Original plate for tin plating

화성처리 : 중크롬산 소다 20∼30 g/l 용액에 전류 밀도 2∼8 A/d㎡ 로 0.5∼1.0 초간 전해Chemical conversion treatment: Electrolyte 20-20 g / l solution of dichromate soda for 0.5-1.0 second at a current density of 2-8 A / dm 2

필름 : 이층 구조 폴리올레핀 수지필름 두께 10∼25㎛, 하부층 산변형 폴리 올레핀 필름Film: two-layer polyolefin resin film thickness 10-25㎛, lower layer acid-modified polyolefin film

라미네이트 온도 : 1차 가열 : 120∼250℃, 2차 가열 : 150∼280℃Lamination Temperature: Primary Heating: 120-250 ° C, Secondary Heating: 150-280 ° C

도금 : 주석 1.0∼2.5 g/㎡Plating: Tin 1.0 ~ 2.5 g / ㎡

실시예 5Example 5

본 발명에 의한 수지필름 피복 금속판을 아래의 조건으로 실시예 1 과 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared in the same manner as in Example 1 under the following conditions.

금속판 : 주석도금용 원판Metal plate: Original plate for tin plating

화성처리 : 중크롬산 소다 20∼30 g/l 용액에 전류 밀도 2∼8 A/d㎡ 로 0.5∼1.0 초간 전해Chemical conversion treatment: Electrolyte 20-20 g / l solution of dichromate soda for 0.5-1.0 second at a current density of 2-8 A / dm 2

필름 : 폴리에스테르(PET) 수지필름 두께 10∼25㎛Film: Polyester (PET) resin film thickness 10-25㎛

접착제 : 에폭시계 접착제 0.5∼3㎛Adhesive: Epoxy Adhesive 0.5 ~ 3㎛

라미네이트 온도 : 1차 가열 : 120∼250℃, 2차 가열 : 150∼300℃Lamination Temperature: Primary Heating: 120 to 250 ° C, Secondary Heating: 150 to 300 ° C

냉각방법: 공기중에서 서랭Cooling method: slow cooling in air

도금 : 주석 1.0∼2.5 g/㎡Plating: Tin 1.0 ~ 2.5 g / ㎡

실시예 6Example 6

본 발명에 의한 수지필름 피복 금속판을 아래의 조건으로 실시예 1 과 같이 제조하였다.The resin film-coated metal sheet according to the present invention was prepared in the same manner as in Example 1 under the following conditions.

금속판 : 주석도금용 원판Metal plate: Original plate for tin plating

화성처리 : 중크롬산 소다 20∼30 g/l 용액에 전류 밀도 2∼8 A/d㎡ 로 0.5∼1.0 초간 전해Chemical conversion treatment: Electrolyte 20-20 g / l solution of dichromate soda for 0.5-1.0 second at a current density of 2-8 A / dm 2

필름 : 이소프탈산 20∼80% 함유한 이축 배향 폴리에스테르(PET) 수지필름 두께 10∼25㎛Film: Biaxially Oriented Polyester (PET) Resin Film Containing 20 to 80% of Isophthalic Acid

접착제 : 에폭시계 접착제 0.5∼3㎛Adhesive: Epoxy Adhesive 0.5 ~ 3㎛

라미네이트 온도 : 1차 가열 : 120∼250℃, 2차 가열 : 150∼300℃Lamination Temperature: Primary Heating: 120 to 250 ° C, Secondary Heating: 150 to 300 ° C

냉각방법: 온도 20∼70℃ 의 물중에서 급랭Cooling method: Quench in water at 20 ~ 70 ℃

도금 : 주석 1.0∼2.5 g/㎡Plating: Tin 1.0 ~ 2.5 g / ㎡

따라서, 상기 설명한 바와 같은 본 발명에 의하면, 종래의 2-피스 캔 제관설비로 수지필름 피복 금속판을 제조할 수 있어 별도의 제관 설비가 불필요하며,용접관 제조시의 용접부를 제외한 금속판의 나머지 부분에 인쇄가 된 수지필름을 띠 모양으로 피복시키는 것에 의해 제관후 별도의 인쇄 공정이 생략되므로 생산 공정의 단축 및 제조 원가의 절감을 가져올 수 있으며, 용접부를 제외한 나머지 수지필름이 피복되는 부분에는 도금을 실시하지 않으므로 불필요한 도금으로 인한 니켈 및 주석의 낭비를 방지하여 제조원가를 절감하며, 내식성과 필름 밀착력, 용접성이 향상되며, 제조 공정이 단순화되어 생산성이 향상되는등 유용한 효과가 얻어진다.Therefore, according to the present invention as described above, it is possible to manufacture a resin film-coated metal plate with a conventional two-piece can pipe manufacturing equipment, no need for a separate pipe manufacturing equipment, and to the remaining portion of the metal plate except for the welded portion at the time of welding pipe manufacturing By coating the printed resin film in the shape of a band, a separate printing process is omitted after the production. Therefore, the production process can be shortened and the manufacturing cost can be reduced. Since it prevents the waste of nickel and tin due to unnecessary plating, the manufacturing cost is reduced, corrosion resistance, film adhesion, weldability are improved, and the manufacturing process is simplified, so that useful effects are obtained.

Claims (5)

수지필름 피복 금속판을 제조하는 방법에 있어서, 도금용 원판(Black Plate) 또는 냉연강판의 단면 또는 양면에 용접관 제조시의 용접부를 제외한 부분에 띠 모양의 수지필름을 피복시키고, 상기 수지필름이 도포되지 않는 상기 용접부에 도금을 하는 것을 특징으로 하는 수지필름 피복금속판의 제조방법.In the method for producing a resin film-coated metal sheet, a band-shaped resin film is coated on a portion of the black plate or cold rolled steel sheet except for a welded portion at the time of manufacturing a weld tube, and the resin film is coated. Method for producing a resin film-coated metal sheet, characterized in that the plating on the welded portion is not. 제 1 항에 있어서, 도금용원판(Black Plate) 또는 냉연강판 표면에 내식성 및 필름 밀착력을 향상시키기 위해 화성처리 피막을 화학적으로 또는 전기적으로 형성시키는 것을 특징으로 하는 수지필름 피복 금속판의 제조방법.The method of manufacturing a resin film-coated metal sheet according to claim 1, wherein a chemical conversion coating film is chemically or electrically formed on a surface of a black plate or a cold rolled steel sheet to improve corrosion resistance and film adhesion. 제 1 항 에 있어서, 도금이 주석, 니켈 중에서 선택된 1 종 또는 2 종으로 이루어진 것을 특징으로 하는 수지필름 피복 금속판의 제조방법.The method for producing a resin film-coated metal sheet according to claim 1, wherein the plating is made of one or two selected from tin and nickel. 제 1 항 내지 제 3 항중 어느 한 항에 있어서, 수지필름이 폴리에스테르, 폴리올레핀, 폴리프로필렌, 나일론 수지필름 중에서 선택된 1 종 또는 2종 이상으로 이루어지는 것을 특징으로 하는 수지필름 피복 금속판의 제조방법.The method for producing a resin film-coated metal sheet according to any one of claims 1 to 3, wherein the resin film is made of one or two or more selected from polyester, polyolefin, polypropylene, and nylon resin films. 제 4 항에 있어서, 수지필름과 금속판 사이에 접착제가 개재된 것을 특징으로 하는 수지필름 피복 금속판의 제조방법.The method of manufacturing a resin film-coated metal sheet according to claim 4, wherein an adhesive is interposed between the resin film and the metal sheet.
KR1019970056354A 1996-11-22 1997-10-30 Method for manufacturing organic coated metal plate for 3-piece can KR100291698B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019970056354A KR100291698B1 (en) 1997-10-30 1997-10-30 Method for manufacturing organic coated metal plate for 3-piece can
JP32179497A JP3076780B2 (en) 1996-11-22 1997-11-21 Manufacturing method of resin film coated metal sheet for welding can
TW86117425A TW520323B (en) 1996-11-22 1997-11-21 Method of manufacturing resin film-coated metal plate for welding tube
CN97120189A CN1106277C (en) 1996-11-22 1997-11-24 Method of manufacturing resin film-coated metal plate for welding tube

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KR1019970056354A KR100291698B1 (en) 1997-10-30 1997-10-30 Method for manufacturing organic coated metal plate for 3-piece can

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KR100291698B1 true KR100291698B1 (en) 2001-06-01

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960002120A (en) * 1994-06-08 1996-01-26 가시오 가즈오 Liquid crystal drive device and liquid crystal inspection method using the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960002120A (en) * 1994-06-08 1996-01-26 가시오 가즈오 Liquid crystal drive device and liquid crystal inspection method using the same

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