KR20130056926A - Manufacturing method of color coated steel sheet and steel sheet using the same - Google Patents

Manufacturing method of color coated steel sheet and steel sheet using the same Download PDF

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KR20130056926A
KR20130056926A KR1020110122587A KR20110122587A KR20130056926A KR 20130056926 A KR20130056926 A KR 20130056926A KR 1020110122587 A KR1020110122587 A KR 1020110122587A KR 20110122587 A KR20110122587 A KR 20110122587A KR 20130056926 A KR20130056926 A KR 20130056926A
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steel sheet
printing
protective layer
layer
drying
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KR1020110122587A
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Korean (ko)
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KR101287609B1 (en
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정원창
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아주스틸 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/28—Printing on other surfaces than ordinary paper on metals
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Methods (AREA)

Abstract

PURPOSE: A manufacturing method of a color coated steel sheet applying a digital multi-functional product capable of reducing print work time and a color coated steel sheet manufactured by the method are provided to prevent a foreign material from attaching to a print layer, which is not dried, during the delivery of steel sheet. CONSTITUTION: A manufacturing method of a color coated steel sheet applying a digital multi-functional product comprises the following steps of: an entering step(S1) that one steel sheet of layered steel sheets deliveries to the print line; a printing step(S20) that ultra-violet rays ink is hardened by an ultra-violet ramp and the printing layer is dried; a step(S11) for printing a protective layer; a step(S12) for drying the protective layer; a step(S13) for cooling the protective layer; and a laminating step(S14) that a laminating film adheres to protect the steel sheet on which the print layer and the protective layer are formed. [Reference numerals] (S1) Entering step; (S10) Third cooling step; (S11) Protective layer printing step; (S12) Protective layer drying step; (S13) Protective layer cooling step; (S14) Laminating step; (S2) First printing step; (S3) First drying step; (S4) First cooling step; (S5) Second printing step; (S6) Second drying step; (S7) Second cooling step; (S8) Third printing step; (S9) Third drying step

Description

디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판{MANUFACTURING METHOD OF COLOR COATED STEEL SHEET AND STEEL SHEET USING THE SAME}MANUFACTURING METHOD OF COLOR COATED STEEL SHEET AND STEEL SHEET USING THE SAME}

본 발명은 디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판에 관한 것으로서, 더욱 상세하게는, 다색의 자외선잉크로 무늬패턴을 한번에 인쇄하여 인쇄층을 형성하고 자외선램프로 상기 자외선잉크를 경화시켜 인쇄층을 건조함으로써, 인쇄작업시간을 단축하여 생산성을 향상시키고 균일한 인쇄품질을 얻을 수 있도록 하는 디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판에 관한 것이다.The present invention relates to a method for manufacturing a color coated steel sheet to which a digital multi-function device is applied, and a color coated steel sheet manufactured by the manufacturing method. More specifically, a printed layer is formed by printing a pattern of patterns with multiple colors of ultraviolet ink at a time to form a printed layer. By curing the UV ink with a lamp and drying the printing layer, the manufacturing method of the color-coated steel sheet to which the digital multifunction device is applied to shorten the printing time and improve the productivity and to obtain a uniform printing quality is produced by the method. It relates to color coated steel sheet.

일반적으로, 강판에 무늬를 인쇄하는 방법으로는 강판에 단순히 도장처리하는 방법과 강판에 다양한 색상 및 무늬패턴을 가미할 수 있는 실크스크린 인쇄방법이 있다. 전자는 단순한 도장방식이기 때문에 다양한 무늬 패턴을 표현하기 어려운 문제점이 있어, 최근에는 후자의 방법이 사용되고 있다.In general, as a method of printing a pattern on a steel sheet, there is a method of simply coating the steel sheet and a silk screen printing method capable of adding various colors and patterns to the steel sheet. Since the former is a simple coating method, it is difficult to express various pattern patterns, and the latter method has recently been used.

이하, 도 1을 참조하여, 실크스크린 인쇄로 컬러도장강판을 제조하는 방법을 살펴본다.Hereinafter, with reference to FIG. 1, looks at a method of manufacturing a color coated steel sheet by silk screen printing.

진입단계(S1)에서는, 적층된 다수의 강판(1)에서 하나의 강판(1)을 흡착수단(2)으로 흡착하여 인쇄라인이 구성된 콘베이어수단(3)으로 이송한다.In the entry step S1, one steel sheet 1 is sucked by the adsorption means 2 from the plurality of stacked steel sheets 1 and transferred to the conveyor means 3 having a printing line.

1호인쇄단계(S2)에서는, 이송된 강판(1)이 콘베이어수단(3)을 따라 이송되면서 인쇄기(4)에 의해 상기 강판(1)에 1도의 색상이 인쇄되어 1호인쇄층이 형성된다.In the first printing step (S2), the conveyed steel sheet 1 is conveyed along the conveyor means 3, and the first printing layer is formed by printing a color of 1 degree on the steel sheet 1 by the printer 4. .

1호건조단계(S3)에서는, 1호인쇄층이 형성된 강판(1)이 건조로(5)에서 발산되는 150~250℃의 열풍에 의해 1호인쇄층을 건조시킨다.In the first drying step (S3), the steel sheet 1 on which the first printing layer is formed is dried by the hot air at 150 to 250 ° C. emitted by the drying furnace 5.

1호냉각단계(S4)에서는, 상기 건조로(5)의 열풍으로 가열된 강판(1)을 냉각기(6)로 방열시켜 냉각시킨다.In the first cooling step S4, the steel sheet 1 heated by the hot air of the drying furnace 5 is radiated and cooled by the cooler 6.

2호인쇄단계(S5)에서는, 냉각된 강판(1)이 콘베이어수단(3)을 따라 이송되면서 인쇄기(4)에 의해 상기 강판(1)에 2도의 색상이 인쇄되어 2호인쇄층이 형성된다.In the second printing step (S5), the cooled steel sheet 1 is transported along the conveyor means 3, and the second printing layer is formed by printing a color of 2 degrees on the steel sheet 1 by the printing machine 4. .

2호건조단계(S6)에서는, 2호인쇄층이 형성된 강판(1)이 건조로(5)에서 발산되는 150~250℃의 열풍에 의해 2호인쇄층을 건조시킨다.In No. 2 drying step (S6), the No. 2 printing layer is dried by hot air at 150 to 250 ° C. in which the steel plate 1 on which the No. 2 printing layer is formed is emanated from the drying furnace 5.

2호냉각단계(S7)에서는, 상기 건조로(5)의 열풍으로 가열된 강판(1)을 냉각기(6)로 방열시켜 냉각시킨다.In No. 2 cooling step S7, the steel sheet 1 heated by the hot air of the drying furnace 5 is radiated and cooled by the cooler 6.

3호인쇄단계(S8)에서는, 냉각된 강판(1)이 콘베이어수단(3)을 따라 이송되면서 인쇄기(4)에 의해 상기 강판(1)에 3도의 색상을 인쇄하여 무늬패턴을 완성하는 3호인쇄층이 형성된다.In the third printing step S8, the cooled steel sheet 1 is transported along the conveyor means 3 while printing the color 3 degrees on the steel sheet 1 by the printing machine 4 to complete the pattern. The printed layer is formed.

3호건조단계(S9)에서는, 3호인쇄층이 형성된 강판(1)이 건조로(5)에서 발산되는 150~250℃의 열풍에 의해 3호인쇄층을 건조시킨다.In the third drying step (S9), the steel sheet 1 on which the third printing layer is formed is dried by the hot air at 150 to 250 ° C. emitted by the drying furnace 5.

3호냉각단계(S10)에서는, 상기 건조로(5)의 열풍으로 가열된 강판(1)을 냉각기(6)로 방열시켜 냉각시킨다.In the third cooling step (S10), the steel sheet 1 heated by the hot air of the drying furnace 5 is radiated and cooled by the cooler 6.

이상은, 인쇄층이 3개인 경우를 설명한 것으로서, 상기 단계들은 인쇄층의 수에 따라 그 공정이 가감될 수 있다.The above has described the case where there are three printed layers, and the steps may be added or subtracted according to the number of printed layers.

보호층인쇄단계(S11)에서는, 강판(1)에 인쇄된 무늬패턴을 보호하고 광택을 유지하도록 인쇄기(4)로 투명의 잉크를 인쇄하여 보호층을 형성한다.In the protective layer printing step (S11), a transparent ink is printed by the printer 4 so as to protect the pattern pattern printed on the steel sheet 1 and maintain the gloss, thereby forming a protective layer.

보호층건조단계(S12)에서는, 보호층이 형성된 강판(1)이 건조로(5)에서 발산되는 열풍에 의해 보호층을 건조시킨다.In the protective layer drying step (S12), the steel sheet 1 on which the protective layer is formed is dried by the hot air emitted from the drying furnace 5.

보호층냉각단계(S13)에서는, 상기 건조로(5)이 열품으로 가열된 강판(1)을 냉각기(6)로 방열시켜 냉각시킨다.In the protective layer cooling step (S13), the drying furnace 5 heats the steel sheet 1 heated by the heat product by radiating it with the cooler 6 to cool it.

라미네이팅단계(S14)에서는, 보호층이 형성된 강판(1)의 표면이 긁히거나 이물질이 흡착되는 것을 방지하도록 라미네이팅기(7)로 라미네이팅필름을 접착시킨다.In the laminating step (S14), the laminating film 7 is bonded by the laminating machine 7 so as to prevent the surface of the steel sheet 1 having the protective layer formed thereon from being scratched or adsorbed.

이후, 무늬패턴이 인쇄된 강판(1)은 일측에 구비된 흡착수단(2)으로 흡착하여 적층시킨다.Subsequently, the steel plate 1 on which the pattern pattern is printed is laminated by absorbing the adsorption means 2 provided on one side.

그런데, 상기한 종래의 실크스크린 인쇄방법은, 인쇄단계에서 하나의 색상만을 인쇄하므로, 다색의 무늬패턴을 인쇄하고자 할 경우에는 다수의 실크스크린을 각 색상에 맞춰 구비하여야 하고, 인쇄색상의 수에 따라 반복적으로 인쇄작업을 하여야 한다. 이에 따라 제조시간이 오래 걸려 생산성이 저하되는 문제점이 있다.By the way, the conventional silk screen printing method, because only one color is printed in the printing step, if you want to print a multi-color pattern pattern should be provided with a plurality of silk screens for each color, depending on the number of print colors The print job should be repeated repeatedly. Accordingly, the manufacturing time is long, there is a problem that the productivity is lowered.

또한, 다수의 색상에 맞춰 인쇄작업을 반복하기 때문에, 단색의 인쇄층에 또 다른 단색이 도포됨에 따른 상호간 융합의 불균형 및 이송되는 강판에 작용하는 진동에 의해 설정위치가 불균형 해지는 문제가 있다. 이에 따라, 전체적으로 균일한 색상을 가지는 무늬패턴을 얻을 수 없어, 인쇄품질이 저하되는 문제점이 있다.In addition, since the printing operation is repeated in accordance with a plurality of colors, there is a problem that the set position is unbalanced by the imbalance of mutual fusion and the vibration acting on the conveyed steel sheet as another single color is applied to the single color printing layer. Accordingly, it is not possible to obtain a pattern having a uniform color as a whole, there is a problem that the print quality is reduced.

또한, 콘베이어수단을 통해 다수의 인쇄기와 건조로 및 냉각기를 이송되면서 무늬패턴의 인쇄층이 형성되기 때문에, 강판이 이송되는 중간에 이물질이 흡착되어 인쇄품질을 저하시키는 문제점이 있다.In addition, since the printing layer of the pattern pattern is formed while conveying a plurality of printers, drying furnaces and coolers through the conveyor means, foreign matter is adsorbed in the middle of conveying the steel sheet, thereby lowering print quality.

또한, 실크스크린으로 인쇄층을 형성한 후 150~250℃의 고온으로 상기 인쇄층을 건조함에 따라, 상기 인쇄층이 건조되는 과정에서 고온의 열풍에 의해 강판이 변형될 수 있다는 문제점이 있다.In addition, as the printed layer is dried at a high temperature of 150 to 250 ° C. after the printed layer is formed by silk screen, there is a problem that the steel sheet may be deformed by hot air in the process of drying the printed layer.

또한, 강판에 형성되는 무늬패턴 색상의 종류에 따라 복수의 인쇄기와 건조로 및 냉각기를 추가 설치해야 하므로 제조장치가 대형화되는 문제점이 있다.In addition, since a plurality of printers, drying furnaces, and coolers need to be additionally installed according to the type of the pattern pattern color formed on the steel sheet, there is a problem that the manufacturing apparatus is enlarged.

즉, 종래의 실크스크린인쇄방법은, 인쇄작업이 길어 생산성을 저하시키고, 반복적인 인쇄공정으로 이물질 흡착에 따른 인쇄품질을 저하시키며, 제조설비가 대형화되어야 함에 따라, 컬러도장강판의 제조단가를 상승시키는 문제점이 있다.That is, in the conventional silk screen printing method, the printing operation is long, the productivity is lowered, the printing quality is reduced due to the adsorption of foreign substances by the repetitive printing process, and the manufacturing cost of the color-coated steel sheet is increased as the manufacturing facilities are enlarged. There is a problem.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은, 다색을 무늬패턴에 맞춰 인쇄할 수 있는 자외선(UV)잉크용 프린터와 자외선(UV)램프를 이용하는 건조로를 일체로 구비함으로써, 인쇄작업시간을 단축시켜 생산성을 향상하는 디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판을 제공하는 데 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide an ultraviolet (UV) ink printer and a drying furnace using an ultraviolet (UV) lamp integrally capable of printing a multi-color according to the pattern pattern. The present invention provides a method of manufacturing a color coated steel sheet to which a digital multi-function device is applied to shorten the printing time and improve productivity, and a color coated steel sheet manufactured by the method.

본 발명의 다른 목적은, 강판에 다색의 무늬패턴을 인쇄하고 건조하는 작업이 한번에 이루어지도록 함으로써, 상기 강판이 이송되는 동안 건조되지 않은 인쇄층으로 이물질 흡착되는 것을 방지하고, 단색의 인쇄층이 순차적으로 도포됨에 따른 잉크융합의 불균형을 방지하여, 인쇄품질을 향상시키는 디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판을 제공하는 데 있다.Another object of the present invention is to print a multi-colored pattern on a steel sheet and to dry it at a time, thereby preventing foreign matter adsorbed to the undried print layer while the steel sheet is transported, and the monochromatic printed layer is sequentially It is to provide a method of manufacturing a color coated steel sheet applied to a digital multi-function device to prevent the imbalance of the ink fusion according to the coating, and to improve the print quality and the color coated steel sheet produced by the manufacturing method.

본 발명의 또 다른 목적은, 자외선램프로 인쇄층을 건조함으로써, 강판이 고온의 열풍에 의해 변형되는 것을 방지하는 디지털 복합기를 적용한 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판을 제공하는 데 있다.Still another object of the present invention is to manufacture a color-coated steel sheet using a digital composite machine which prevents the steel sheet from being deformed by high temperature hot air by drying the printing layer with an ultraviolet lamp, and the color-coated steel sheet manufactured by the manufacturing method. To provide.

상기와 같은 본 발명의 목적을 달성하기 위한 본 발명은, 적층된 강판 중 하나의 강판을 인쇄라인으로 이송하는 진입단계와, 상기 진입단계를 통해 진입된 강판에 다색의 자외선잉크로 무늬패턴을 한번에 인쇄하여 인쇄층을 형성하고, 자외선램프로 자외선잉크를 경화시켜 인쇄층을 건조하는 인쇄단계와, 상기 인쇄단계를 통해 강판에 형성된 인쇄층에 보호층을 인쇄하는 보호층인쇄단계와, 상기 보호층인쇄단계를 통해 강판에 인쇄된 보호층을 건조하는 보호층건조단계와, 상기 보호층건조단계를 통해 인쇄층이 건조된 강판을 냉각시키는 보호층냉각단계, 및 상기 보호층냉각단계를 통해 인쇄층 및 보호층이 형성된 강판을 보호하기 위해 라미네이팅필름을 접착하는 라미네이팅단계를 포함하는 것을 특징으로 한다.The present invention for achieving the object of the present invention as described above, the entrance step of transferring one of the laminated steel sheet to the printing line, and the pattern of the pattern by the multi-color UV ink at the steel sheet entered through the entry step at a time A printing step of printing to form a printing layer, and curing the ultraviolet ink with an ultraviolet lamp to dry the printing layer, a protective layer printing step of printing a protective layer on the printing layer formed on the steel sheet through the printing step, and the protective layer A protective layer drying step of drying the protective layer printed on the steel sheet through a printing step, a protective layer cooling step of cooling the steel sheet dried on the printed layer through the protective layer drying step, and a printing layer through the protective layer cooling step. And a laminating step of adhering the laminating film to protect the steel sheet on which the protective layer is formed.

본 발명에 있어서, 인쇄단계의 자외선잉크는 35~55중량% 올리고머와, 15~25중량% 모노머와, 10~25중량% 광중합성 수지와, 5~10중량% 광중합개시제와, 1~5중량% 보조제로 조성되고, 자외선램프는, 350~420㎜장파영역을 가지는 램프인 것이 바람직하다.In the present invention, the ultraviolet ink in the printing step is 35 to 55% by weight oligomer, 15 to 25% by weight monomer, 10 to 25% by weight photopolymerizable resin, 5 to 10% by weight photopolymerization initiator, 1 to 5% by weight It is preferable that it is comprised by the% adjuvant, and an ultraviolet lamp is a lamp which has a 350-420 mm long wave region.

본 발명에 의하면, 다색을 무늬패턴에 맞춰 인쇄할 수 있는 자외선(UV)잉크용 프린터와 자외선(UV)램프를 이용하는 건조로를 일체로 구비하므로, 인쇄작업시간을 단축시켜 생산성을 향상하는 효과가 있다.According to the present invention, since a printer for ultraviolet (UV) ink and a drying furnace using an ultraviolet (UV) lamp are integrally provided to print a multi-color according to a pattern pattern, there is an effect of shortening the printing time and improving productivity. .

또한, 강판에 다색의 무늬패턴을 인쇄하고 건조하는 작업이 한번에 이루어지도록 하므로, 상기 강판이 이송되는 동안 건조되지 않은 인쇄층으로 이물질 흡착되는 것을 방지하고, 단색의 인쇄층이 순차적으로 도포됨에 따른 잉크융합의 불균형을 방지하여 인쇄품질을 향상시키는 효과가 있다.In addition, the printing and drying of the multi-colored pattern on the steel sheet is performed at once, thereby preventing the foreign material adsorbed to the undried print layer while the steel sheet is transported, and the ink according to the application of the monochromatic printing layer in sequence There is an effect of improving the print quality by preventing the imbalance of fusion.

또한, 자외선램프로 인쇄층을 건조하므로, 강판이 고온의 열풍에 의해 변형되는 것을 방지하는 효과가 있다.In addition, since the printing layer is dried with an ultraviolet lamp, there is an effect of preventing the steel sheet from being deformed by high temperature hot air.

도 1은 일반적인 실크스크린 인쇄방법으로 컬러도장강판을 제조하는 공정도.
도 2는 본 발명에 따른 컬러도장강판의 인쇄공정도.1 is a process for manufacturing a color coated steel sheet by a general silk screen printing method.
Figure 2 is a printing process of the color coated steel sheet according to the present invention.

이하, 본 발명을 첨부된 도면을 참조하여 설명하면 다음과 같다(종래와 동일한 구성에 대해서는 동일한 참조부호를 사용하고 이에 대한 상세한 설명은 생략한다).DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. (The same reference numerals are used for the same components as those in the conventional art, and a detailed description thereof will be omitted).

본 발명의 컬러도장강판은, 다색의 인쇄을 한번에 작업할 수 있는 프린터(12)와 상기 프린터(12)에 근접되게 설치되어 상기 프린터(12)를 통해 인쇄된 인쇄층을 건조하는 건조부(16)가 구비된 프린팅수단(10)으로 구성되어, 다색의 무늬패턴이 한번에 인쇄된다.The color-coated steel sheet of the present invention is a printer 12 capable of performing multicolor printing at once and a drying unit 16 installed near the printer 12 to dry the printed layer printed through the printer 12. The printing means 10 is provided with, the multi-color pattern is printed at a time.

상기 프린터(12)는, 단색의 자외선(UV)잉크 각각을 수용하는 다수의 카트리지(14a~14n)가 구비되어, 상기 다수의 카트리지(14a~14n)가 종 방향으로 왕복 이송하면서 무늬패턴이 인쇄된다.The printer 12 includes a plurality of cartridges 14a to 14n accommodating each of the monochromatic ultraviolet (UV) inks, and the plurality of cartridges 14a to 14n reciprocate in the longitudinal direction to print a pattern pattern. do.

상기 자외선잉크는, 35~55중량% 올리고머, 15~25중량% 모노머, 10~25중량% 광중합성 수지, 5~10중량% 광중합개시제, 1~5중량% 보조제로 조성된다.The ultraviolet ink is composed of 35 to 55% by weight oligomer, 15 to 25% by weight monomer, 10 to 25% by weight photopolymerizable resin, 5 to 10% by weight photopolymerization initiator, 1 to 5% by weight auxiliary.

상기 올리고머는, 폴리에스텔 아크릴레이트, 에폭시 아크릴레이트, 우레탄 아크릴레이트 중 어느 하나인 것이 바람직하다.It is preferable that the said oligomer is any of polyester acrylate, epoxy acrylate, and urethane acrylate.

상기 모노머는, 2-히드록시 에틸 메타크릴레이트, 2-에틸헥실 아크릴레이트, 2-히드록시 에틸 아크릴레이트, 비닐 피롤리돈, 네오펜틸 글리콜 디아크릴레이트, 디에틸렌 글리콜 디아클리레이트 중 어느 하나인 것이 바람직하다.The monomer is any one of 2-hydroxy ethyl methacrylate, 2-ethylhexyl acrylate, 2-hydroxy ethyl acrylate, vinyl pyrrolidone, neopentyl glycol diacrylate and diethylene glycol diacrylate. It is preferable.

상기 광중합성 수지는, 불포화 폴리에스텔계로서, 아크릴계 수지인 것이 바람직하다.The said photopolymerizable resin is unsaturated polyester type, It is preferable that it is acrylic resin.

상기 광중합개시제는, 칼보닐화합물, 이오우화합물, 아조화합물 중 어느 하나인 것이 바람직하다.It is preferable that the said photoinitiator is any one of a carbonyl compound, an eau compound, and an azo compound.

상기 보조제는, 0.5~2중량% 접착증강제, 0.2~1.2중량% 산화방지제, 0.2~1.2중량% 계면활성제, 0.05~0.3중량% 중합금지제, 0.05~0.3중량% 안료로 조성된다.The adjuvant is composed of 0.5 to 2% by weight adhesive enhancer, 0.2 to 1.2% by weight antioxidant, 0.2 to 1.2% by weight surfactant, 0.05 to 0.3% by weight polymerization inhibitor, 0.05 to 0.3% by weight pigment.

상기 건조부(16)는, 자외선잉크를 경화시켜 건조시키는 자외선램프를 구비한다.The drying unit 16 includes an ultraviolet lamp for curing and drying the ultraviolet ink.

상기 자외선램프는, 350~420㎜장파영역을 가지는 고압구은등, 메탈할라이드 램프 또는 발광다이오드(LED)램프 중 어느 하나인 것이 바람직하다.The ultraviolet lamp is preferably any one of a high-pressure silver lamp, a metal halide lamp, or a light emitting diode (LED) lamp having a long wavelength region of 350 to 420 mm.

상기와 같이 구성된 프린팅수단을 이용하여 컬러도장강판을 인쇄하는 방법을 살펴보면 다음과 같다.Looking at the printing method of the color coated steel sheet using the printing means configured as described above are as follows.

도 2를 참조하면, 진입단계(S1)는, 적층된 다수의 강판에서 하나의 강판을 흡착하여 인쇄라인으로 이송하는 단계이다.Referring to FIG. 2, the entry step (S1) is a step of adsorbing one steel sheet from a plurality of stacked steel sheets and transferring them to a printing line.

즉, 다수 적층된 강판(1) 중 하나의 강판(1)을 흡착수단(2)으로 흡착하여, 콘베이어수단(3)에 구비된 인쇄라인으로 진입시킨다.That is, one steel sheet 1 of the plurality of laminated steel sheets 1 is adsorbed by the adsorption means 2, and enters the printing line provided in the conveyor means 3.

인쇄단계(S20)는, 상기 진입단계(S1)를 통해 진입된 강판에 프린팅수단으로 다색의 무늬패턴을 인쇄 및 건조하는 단계이다.The printing step (S20) is a step of printing and drying the multi-colored pattern by the printing means on the steel sheet entered through the entry step (S1).

이에 따라, 콘베이어수단(3)을 통해 이송되는 강판(1)이 프린팅수단(10)으로 진입된다.As a result, the steel sheet 1 conveyed through the conveyor means 3 enters the printing means 10.

진입된 강판(1)은, 상기 프린팅수단(10)의 자외선잉크가 구비된 프린터(12)에 의해 다색의 무늬패턴이 한번에 인쇄된다.In the steel sheet 1, the multi-colored pattern is printed at a time by the printer 12 equipped with the ultraviolet ink of the printing means 10.

또한, 상기 프린터(12)의 일측에 구비된 건조부(16)의 자외선램프에 의해 자외선잉크가 경화됨에 따라, 상기 강판(1)의 무늬패턴 인쇄층을 건조시킨다.In addition, as the ultraviolet ink is cured by the ultraviolet lamp of the drying unit 16 provided on one side of the printer 12, the pattern pattern printed layer of the steel sheet 1 is dried.

보호층인쇄단계(S11)는, 상기 인쇄단계(S20)를 통해 무늬패턴이 인쇄 및 건조된 인쇄층에 보호층을 인쇄하는 단계이다.The protective layer printing step S11 is a step of printing the protective layer on the printed layer on which the pattern pattern is printed and dried through the printing step S20.

즉, 프린팅수단(10)을 통해 무늬패턴의 인쇄 및 건조가 완료된 강판(1)에 투명의 잉크로 이루어진 보호층을 인쇄하여, 상기 강판(1)의 인쇄층을 보호한다.That is, a protective layer made of transparent ink is printed on the steel sheet 1 on which the printing and drying of the pattern is completed through the printing means 10 to protect the printed layer of the steel sheet 1.

보호층건조단계(S12)는 상기 보호층인쇄단계(S11)를 통해 강판에 인쇄된 보호층을 건조하는 단계이다.Protective layer drying step (S12) is a step of drying the protective layer printed on the steel sheet through the protective layer printing step (S11).

즉, 인쇄기(4)를 통해 강판에 인쇄된 보호층을 건조한다. 이때 건조로(5)의 건조조건은 150~250℃의 열풍인 것이 바람직하다.That is, the protective layer printed on the steel plate is dried through the printer (4). At this time, the drying conditions of the drying furnace (5) is preferably hot air of 150 ~ 250 ℃.

보호층냉각단계(S13)는, 상기 보호층건조단계(S12)를 통해 고온의 열풍에 의해 가열된 강판을 냉각시키는 단계이다.Protective layer cooling step (S13) is a step of cooling the steel sheet heated by hot air at high temperature through the protective layer drying step (S12).

즉, 건조로(5)에서 발산되는 고온의 열풍으로 인해 보호층이 건조되는 동안 가열된 강판(1)을 냉각기(6)로 냉각시킨다.That is, the heated steel sheet 1 is cooled by the cooler 6 while the protective layer is dried due to the high temperature hot air emitted from the drying furnace 5.

라미네이팅단계(S14)는, 상기 보호층냉각단계(S13)를 통해 무늬패턴의 인쇄층 및 보호층이 형성된 강판에 라미네이팅필름을 접착하는 단계이다.Laminating step (S14) is a step of adhering a laminating film to the steel plate on which the printed layer and the protective layer of the pattern pattern is formed through the protective layer cooling step (S13).

즉, 무늬패턴의 인쇄층 및 보호층이 형성된 강판(1)이 이송 중에 긁힘되는 것을 방지하기 위해, 라미네이팅기(7)를 통해 상기 강판(1)에 라미네이팅필름을 접착한다.That is, in order to prevent the steel plate 1 having the printed layer and the protective layer of the pattern pattern from being scratched during transportation, the laminating film is adhered to the steel sheet 1 through the laminating machine 7.

마지막으로, 상기 강판(1)을 흡착수단(2)으로 흡착하여 이를 적층공간으로 적층한 후 출고한다.Finally, the steel sheet 1 is adsorbed by the adsorption means 2, and stacked in a lamination space and then shipped.

본 발명에 의하면, 프린팅수단으로 강판에 다색의 무늬패턴을 한번에 인쇄하고 건조를 하기 때문에, 생산성을 대폭 향상시킴과 동시에 균일한 인쇄품질을 얻을 수 있다.According to the present invention, since the multi-color pattern is printed on the steel sheet at one time by the printing means and dried, the productivity can be greatly improved and uniform printing quality can be obtained.

이상에서 설명한 것은 컬러도장강판의 제조방법 및 그 제조방법에 의해 제조된 컬러도장강판을 실시하기 위한 하나의 실시 예에 불과한 것으로서, 본 발명은 상기한 실시 예에 한정되지 아니한다. 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면, 본 발명의 요지를 벗어남이 없이 다양한 변경 실시가 가능하다는 것을 이해할 수 있을 것이다.What has been described above is just one embodiment for carrying out the manufacturing method of the color coated steel sheet and the color coated steel sheet manufactured by the method, the present invention is not limited to the above embodiment. It will be understood by those skilled in the art that various changes may be made without departing from the spirit of the invention.

1: 강판 2: 흡착수단
3: 콘베이어수단 4: 인쇄기
5: 건조로 6: 냉각기
7: 라미네이팅기 10: 프린팅수단
12: 프린터 16: 건조부1: steel sheet 2: adsorption means
3: conveyor means 4: printing press
5: drying furnace 6: cooler
7: laminating machine 10: printing means
12: printer 16: drying unit

Claims (4)

무늬패턴이 인쇄된 컬러도장강판의 제조방법에 있어서,
적층된 강판 중 하나의 강판을 인쇄라인으로 이송하는 진입단계(S1)와;
상기 진입단계(S1)를 통해 진입된 강판에 자외선잉크로 무늬패턴을 한번에 인쇄하여 인쇄층을 형성하고, 자외선램프로 자외선잉크를 경화시켜 인쇄층을 건조하는 인쇄단계(S20);
상기 인쇄단계(S20)를 통해 강판에 형성된 인쇄층에 보호층을 인쇄하는 보호층인쇄단계(S11);
상기 보호층인쇄단계(S11)를 통해 강판에 인쇄된 보호층을 건조하는 보호층건조단계(S12);
상기 보호층건조단계(S12)를 통해 인쇄층이 건조된 강판을 냉각시키는 보호층냉각단계(S13); 및
상기 보호층냉각단계(S13)를 통해 인쇄층 및 보호층이 형성된 강판을 보호하기 위해 라미네이팅필름을 접착하는 라미네이팅단계(S14)를 포함하는 것을 특징으로 하는 디지털 복합기를 적용한 컬러도장강판의 제조방법.In the manufacturing method of a color coated steel sheet printed with a pattern,
An entrance step (S1) of transferring one steel sheet of the stacked steel sheets to a printing line;
A printing step of forming a printing layer by printing a pattern at one time with ultraviolet ink on the steel sheet entered through the entrance step (S1), and curing the ultraviolet ink with an ultraviolet lamp to dry the printing layer (S20);
Protective layer printing step (S11) for printing a protective layer on the printing layer formed on the steel sheet through the printing step (S20);
A protective layer drying step (S12) of drying the protective layer printed on the steel sheet through the protective layer printing step (S11);
A protective layer cooling step (S13) of cooling the steel sheet on which the printed layer is dried through the protective layer drying step (S12); And
Laminating step (S14) for adhering the laminating film in order to protect the steel sheet formed with the printed layer and the protective layer through the protective layer cooling step (S13). 청구항 1에 있어서,
상기 인쇄단계(S20)의 자외선잉크는 35~55중량% 올리고머와;
15~25중량% 모노머;
10~25중량% 광중합성 수지;
5~10중량% 광중합개시제; 및
1~5중량% 보조제로 조성되는 것을 특징으로 하는 디지털 복합기를 적용한 컬러도장강판의 제조방법.The method according to claim 1,
UV ink of the printing step (S20) is 35 to 55% by weight oligomer;
15-25 wt% monomer;
10-25 weight% photopolymerizable resin;
5-10% by weight photopolymerization initiator; And
A method of manufacturing a color coated steel sheet to which a digital multi-function device is applied, characterized in that it is composed of 1 to 5% by weight of an auxiliary agent. 청구항 1에 있어서,
상기 인쇄단계(S20)의 자외선램프는, 350~420㎜장파영역을 가지는 램프인 것을 특징으로 하는 디지털 복합기를 적용한 컬러도장강판의 제조방법.The method according to claim 1,
The UV lamp of the printing step (S20) is a manufacturing method of the color coated steel sheet to which the digital multifunction device is applied, characterized in that the lamp having a 350 ~ 420mm long wave area. 청구항 1 내지 3에 의해 제조된 컬러도장강판인 것을 특징으로 하는 디지털 복합기를 적용한 컬러도장강판.Color-coated steel sheet to which a digital multi-function device is applied, characterized in that the color-coated steel sheet manufactured according to claim 1 to 3.
KR1020110122587A 2011-11-23 2011-11-23 Manufacturing method of color coated steel sheet and steel sheet using the same KR101287609B1 (en)

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