KR20040060395A - Two-color invisible fluorescent ink for anti-counterfeiting by using fluorescent material - Google Patents

Two-color invisible fluorescent ink for anti-counterfeiting by using fluorescent material Download PDF

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KR20040060395A
KR20040060395A KR1020020087185A KR20020087185A KR20040060395A KR 20040060395 A KR20040060395 A KR 20040060395A KR 1020020087185 A KR1020020087185 A KR 1020020087185A KR 20020087185 A KR20020087185 A KR 20020087185A KR 20040060395 A KR20040060395 A KR 20040060395A
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ink
weight
invisible
wave
fluorescent
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KR100517160B1 (en
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류일녕
정윤회
채종훈
김길연
김선영
류희경
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한국조폐공사
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/03Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • B41M3/144Security printing using fluorescent, luminescent or iridescent effects
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/03Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: Provided is an anti-counterfeit and forgery dichroic fluorescent ink comprising a fluorescent ink which radiates different colors at specific wave length(long wave 365 nm, short wave 254 nm) and a colored ink as complementary color. CONSTITUTION: The ink comprises 83-91 wt% of invisible fluorescent ink comprising 3-8 wt% of invisible fluorescent material having long wave(2), 19-40 wt% of invisible fluorescent material having short wave(1), 41-74 wt% of varnish(3), 2-7 wt% of aliphatic solvent having high boiling point, and 2-4 wt% of dessicating agent of manganese or cobalt drier. The invisible fluorescent material having long wave emits a light at 365 nm, and invisible fluorescent material having short wave emits a light at 254 nm. The invisible fluorescent materials having long wave and short wave are selected from the group consisting of LUMILUX CD 402, 702 and 770 respectively.

Description

형광물질을 이용한 위변조 방지용 이색성 형광잉크 {Two-color invisible fluorescent ink for anti-counterfeiting by using fluorescent material}Two-color invisible fluorescent ink for anti-counterfeiting by using fluorescent material}

본 발명은 형광물질을 이용한 위변조 방지용 이색성 형광잉크에 관한 것으로, 좀 더 상세하게는 자외선 파장인 장파(365㎚)에서는 황색 또는 녹색의 색상이나타나고, 단파(254㎚)에서는 적색 또는 오렌지색의 색상이 발광하는 형광안료와 가시광선에서는 자외선 조사시 재현되는 색상과 보색 관계를 유지하도록 하는 유색안료를 함유하는 이색성 형광잉크 및 이를 은행권, 유가증권류, 여권의 신원정보 및 사증란, 특수문서, 카드류 등에 위·변조 방지를 위해 적용하는 방법에 관한 것이다.The present invention relates to a dichroic fluorescent ink for preventing forgery and alteration using a fluorescent material, and more specifically, a yellow or green color at a long wave (365 nm), which is an ultraviolet wavelength, and a red or orange color at a short wave (254 nm). In the fluorescent pigments and visible light emitting light, dichroic fluorescent ink containing colored pigments to maintain the color and complementary color reproduction when irradiated with ultraviolet rays, and the identification information and visa column of banknotes, securities, passports, special documents, cards The present invention relates to a method for applying for preventing forgery and alteration.

종래부터 은행권, 유가증권류, 여권 신원정보 및 사증란, 특수문서, 카드류 등의 위·변조를 방지하기 위한 방안으로 여러가지 특수요소인 형광색사, 형광잉크, 변색잉크, 광간섭무늬, 시변각 물질, 은화, 부분노출은선 등이 사용되어 오고 있다.Conventionally, it is a countermeasure to prevent forgery and alteration of banknotes, securities, passport identity information, visa column, special documents, cards, etc. Various special factors such as fluorescent color, fluorescent ink, discoloration ink, optical interference pattern, and time-varying substance Silver, silver, and partially exposed silver wire have been used.

이러한 위·변조를 방지하기 위해 다양한 방법들이 연구 개발되고 있고, 예를 들어 마찰이나 열에 의해 50∼70℃ 정도로 가열되면 잉크의 색상이 순간적으로 소멸되고 열원이 제거되면 원래의 색상으로 복원되는 특징을 갖는 열감응성 잉크, 자외선 조사시 및 태양광선하의 각 조건하에 있어서 색상이 변색되는 감광성 잉크 등이 개발되었다. 이러한 감열 변색 효과를 나타내는 재료로서, 액정, 유무기계 물질 등이 제조되어 산업용 도료 또는 팜플렛, 스티커, 장식품 등에 일부 사용되고 있음은 이미 알려져 있으나, 이러한 기능성 잉크를 은행권, 여권, 각종 신분증 등에 장기간 사용시에는 내광성이 미흡한 문제점이 있다.In order to prevent such forgery and alteration, various methods have been researched and developed. For example, when heated to a temperature of 50 to 70 ° C. by friction or heat, the color of the ink disappears instantaneously, and the original color is restored when the heat source is removed. The thermosensitive ink which has it, the photosensitive ink which discolors under the conditions of ultraviolet irradiation and sunlight, etc. were developed. As a material exhibiting such a heat discoloration effect, it is known that liquid crystals, non-machined materials, etc. are manufactured and used in industrial paints, brochures, stickers, and ornaments. However, when the functional ink is used for a long time in banknotes, passports, various identification cards, etc. There is this inadequate problem.

아울러, 현재 일반화되어 있는 위조방지용 종이로는 가시·비가시 형광잉크를 사용하여 도안 인쇄를 용지 표면에 설치하는 방식이 알려져 있다. 그러나, 동일색상으로 형광하는 물질을 입수하면 쉽게 공지의 인쇄수단 또는 사무용 펜, 붓 등을이용하여 변조할 수 있는 결점이 있어 위·변조방지 효과가 미흡하였다.In addition, as the anti-counterfeiting paper that is currently generalized, a method of installing a print on the surface of a paper using visible and invisible fluorescent ink is known. However, when the same color fluorescent material is obtained, there is a drawback that can be easily modulated by using a known printing means or an office pen, a brush, etc., and thus the effect of preventing forgery and alteration is insufficient.

일본 특개평 9-52431호에서는 시트제인 종이의 초지시에 젖은 상태에서 수용성 잉크를 인쇄하고, 잉크를 종이 내부에 함침한 모양으로 표면에 존재하도록 함으로써 상기와 같은 문제점을 해소하고자 하고 있다. 그러나, 이 방법도 형광잉크가 종이 표면 가까이에 많이 분포하기 때문에 통상의 형광잉크를 사용한 디자인을 적용한 인쇄시에 잉크 흡수 얼룩이 생기기 쉬운 문제를 해소할 수 없다.In Japanese Patent Laid-Open No. 9-52431, the above-mentioned problem is solved by printing a water-soluble ink in a wet state when paper is made of sheet, and allowing the ink to exist on the surface in a shape impregnated inside the paper. However, this method also does not solve the problem that ink absorption spots are liable to occur when printing with a design using a conventional fluorescent ink because a large amount of fluorescent ink is distributed near the paper surface.

또한, 일본 특개평 3-230996호에서는 형광물질을 종이 상면의 디자인에 적용하여 인쇄시 투명화 잉크 인쇄부만이 형광발색해 보이는 방법을 취하고 있다. 그러나, 이러한 방법도 일반 사무용 형광펜을 이용하여 부분적으로 변조를 할 수 있기 때문에 위·변조방지 효과가 미흡한 실정이다.In addition, Japanese Patent Laid-Open No. 3-230996 employs a method in which only a transparent ink printing unit looks fluorescent when printing by applying a fluorescent material to the design of the upper surface of the paper. However, such a method also partially modulates using a general office highlighter, and thus, the effect of preventing forgery and alteration is insufficient.

따라서, 본 발명의 목적은 전술한 종래기술의 문제점을 해결하고, 새로운 위·변조의 대응방법으로서 특정 파장(장파 365㎚, 단파 254㎚)에서 색상이 상이하게 발광하는 형광잉크와 보색으로 유색잉크를 함유하는 이색성 형광잉크를 제공하는데 있다.Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and as a countermeasure for a new forgery / modulation, a fluorescent ink that complements colors at a specific wavelength (long wave 365 nm, short wave 254 nm) and colored ink with complementary colors. It is to provide a dichroic fluorescent ink containing.

본 발명의 다른 목적은, 상기 이색성 형광잉크의 적용방법을 제공하는데 있다.Another object of the present invention is to provide a method of applying the dichroic fluorescent ink.

상기 목적을 달성하기 위한 본 발명의 형광물질을 이용한 위변조 방지용 이색성 형광잉크는, 비가시 장파 형광물질 3∼8중량%, 비가시 단파 형광물질 19∼40중량%, 바니시 41∼74중량%, 지방족 고비점 용제 2∼7중량% 및 망간 또는 코발트드라이어의 건조제 2∼4중량%를 포함하는 비가시 형광잉크 83∼91중량%; 황색, 적색 또는 청색을 갖는 유색잉크 3∼6중량%; 지방족 고비점 용제 2∼7중량%; 및 망간 또는 코발트 드라이어의 건조제 2∼4중량%;로 이루어진다.Dichroic fluorescent ink for preventing forgery and alteration using the fluorescent material of the present invention for achieving the above object is 3 to 8% by weight of invisible long-wave fluorescent material, 19 to 40% by weight of invisible short-wave fluorescent material, 41 to 74% by weight varnish, 83 to 91% by weight of an invisible fluorescent ink comprising 2 to 7% by weight of an aliphatic high boiling point solvent and 2 to 4% by weight of a drying agent of manganese or cobalt dryer; 3-6% by weight of colored ink having yellow, red or blue color; 2 to 7% by weight of an aliphatic high boiling point solvent; And 2 to 4% by weight of a desiccant of manganese or cobalt dryer.

또한 상기 다른 목적을 달성하기 위해, 상기 이색성 형광잉크는 은행권, 유가증권류, 여권의 신원정보 및 사증란, 특수문서, 카드류, 각종 신분증 등의 위·변조 방지를 위해 적용된다.In addition, the dichroic fluorescent ink is applied to prevent forgery and alteration of banknotes, securities, passport identity information and visa column, special documents, cards, various identification cards, etc.

도 1은 본 발명에 따른 비가시 형광물질을 이용하여 위변조 방지용 이색성 형광잉크를 제조하는 방법을 나타내는 공정 순서도이다.1 is a process flow chart showing a method for manufacturing a dichroic fluorescent ink for preventing forgery using an invisible fluorescent material according to the present invention.

도 2는 본 발명에 따른 비가시 형광물질과 바니시의 혼합 원리를 나타내는 사시도이다.2 is a perspective view showing the mixing principle of the invisible fluorescent material and varnish according to the present invention.

도 3은 도 2의 비가시 형광잉크에 유색잉크를 투입하여 제조된 이색성 형광잉크를 나타내는 사시도이다3 is a perspective view showing a dichroic fluorescent ink prepared by adding colored ink to the invisible fluorescent ink of FIG.

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

1: 단파에서 발광하는 비가시 형광물질1: invisible fluorescent material emitting light at shortwave

2: 장파에서 발광하는 비가시 형광물질2: invisible phosphor emitting in a long wave

3: 바니시, 4: 유색잉크(황색, 청색, 적색)3: varnish, 4: colored ink (yellow, blue, red)

이하 본 발명을 좀 더 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail.

전술한 바와 같이, 본 발명은 특정 파장(장파 365㎚, 단파 254㎚)에서 색상이 상이하게 발광하는 형광잉크와 이와 보색을 갖는 유색잉크를 함유하는 이색성 형광잉크를 그 특징으로 하여, 칼라 출력기(복사기, 프린터기)에 의해 복사시에는 가시광에서 나타나는 색상이 소실되고 자외선 광에 의한 형광효과를 기기 및 가시적으로 진위식별이 가능하도록 한 것이다.As described above, the present invention is characterized in that a color output device is characterized by a dichroic fluorescent ink containing a fluorescent ink emitting colors differently at a specific wavelength (long wave 365 nm, short wave 254 nm) and a colored ink having complementary colors. When copying by (copier, printer), the color appearing in the visible light is lost and the fluorescence effect by ultraviolet light is enabled for the instrument and the true authenticity to be visually identified.

도 1은 본 발명에 따른 이색성 형광잉크를 제조하는 단계를 공정흐름도로 도시한 것이다.Figure 1 shows a process flow diagram for producing a dichroic fluorescent ink according to the present invention.

도 1과 같이, 본 발명에 따른 이색성 형광잉크는 장단파의 특수파장에서 발광하는 비가시 형광 물질을 바니시, 지방족 고비점 용제, 코발트 드라이어와 혼합하여 비가시 형광잉크를 제조한 후, 이를 유색잉크, 지방족 고비점 용제, 코발트 드라이어와 혼합하여 제조된다.As shown in FIG. 1, the dichroic fluorescent ink according to the present invention is prepared by mixing a non-visible fluorescent material emitting at a special wavelength of short and long wavelengths with a varnish, an aliphatic high boiling point solvent, and a cobalt dryer to produce an invisible fluorescent ink. It is prepared by mixing with ink, aliphatic high boiling point solvent and cobalt dryer.

본 발명에서 사용할 수 있는 비가시 장단파 형광물질은 루미룩스(LUMILUX)CD 702, 704 및 770으로 이루어진 군으로부터 선택되지만, 이에 한정되는 것은 아니다.The invisible long-wave fluorescent material which can be used in the present invention is selected from the group consisting of LUMILUX CD 702, 704 and 770, but is not limited thereto.

상기 비가시 장단파 형광물질 혼합 비율에 따라 다음과 같은 기능이 있다.Depending on the ratio of the invisible short-wave fluorescent material mixture has the following functions.

비가시 장파 형광물질인 CD702 등을 3중량% 미만으로 사용하는 경우에는 장파(365㎚) 자외선 조사시 녹색 발광 효과가 미흡하게 나타나는 문제가 있으며, 8중량%를 초과하는 경우에는 비가시 단파 형광물질이 단파(254㎚) 자외선 조사시 적색 발광효과가 미흡하게 나타나는 문제가 있다.In the case of using less than 3% by weight of CD702, which is an invisible long-wave fluorescent material, there is a problem that the green light emission effect is insufficient when long-wave (365 nm) UV irradiation, and in the case of more than 8% by weight, invisible short-wave fluorescent material There is a problem that the red light emission effect is insufficient when the short wave (254 nm) ultraviolet ray is irradiated.

또한, 비가시 단파 형광물질인 CD770 등을 19중량% 미만으로 사용하는 경우에는 단파(254㎚) 자외선 조사시 적색 발광 효과가 미흡하게 나타나는 문제가 있으며, 40중량%를 초과하는 경우에는 비가시 장파 형광물질이 장파(365㎚) 자외선 조사시 녹색 발광효과가 미흡하게 나타나는 문제가 있다.In addition, when less than 19% by weight of CD770, which is an invisible short-wave fluorescent material, there is a problem that the red light emission effect is insufficient when the short-wave (254 nm) ultraviolet radiation is applied. When the fluorescent material is irradiated with long wave (365 nm) ultraviolet rays, there is a problem in that the green luminous effect is insufficient.

이렇게 첨가되는 형광물질에 의해 본 발명에 따른 잉크에 자외선광을 장파, 단파로 구분하여 조사하면 형광특성이 특정 파장에서 색상이 상이하게 각각 발현됨으로써 위·변조를 예방할 수 있다.When the ultraviolet light is irradiated to the ink according to the present invention by using the fluorescent material added in this way, the fluorescent characteristics are differently expressed at specific wavelengths, thereby preventing forgery and modulation.

상기 비가시 형광잉크를 제조할 때 혼합되는 바니시, 지방족 고비점 용제, 및 건조제에 대해 간단히 설명한다.The varnishes, aliphatic high boiling point solvents, and drying agents to be mixed when preparing the invisible fluorescent ink will be briefly described.

본 발명에 사용되는 바니시(varnish), 특히 평판 잉크제조용 바니시의 통상적인 제조방법을 살펴보면, 이에 한정되는 것은 아니지만 P-알킬 페놀수지 또는 비스페놀 A와 포름알데히드로부터 페놀수지의 초기 축합물을 얻고, 이것을 송진과 반응시켜 페놀수지의 메틸롤기를 송진의 이중 결합부분과 반응시킨 다음, 이 수지의카르복실기를 글리세린 또는 펜타에리스리톨과 같은 폴리올에서 에스테르화하여 로진 변성 페놀수지로 제조하고, 이를 아마인유, 아주까리유, 알키드수지, 탄화수소용제 등에 용해시켜서 제조하게 된다. 상기 바니시의 함량이 41중량% 미만이면 인쇄 잉크 제조 적성이 미흡하며, 74중량%를 초과하면 인쇄적성이 미흡한 문제가 있다.Looking at the conventional method for producing varnishes, in particular flat varnishes for producing flat ink used in the present invention, an initial condensation product of a phenol resin is obtained from, but not limited to, P-alkyl phenol resin or bisphenol A and formaldehyde. After reacting with the rosin, the methylol group of the phenol resin is reacted with the double bond portion of the rosin, and then the carboxyl group of the resin is esterified from a polyol such as glycerin or pentaerythritol to prepare a rosin-modified phenolic resin. It is prepared by dissolving in alkyd resin, hydrocarbon solvent and the like. When the content of the varnish is less than 41% by weight, the printing ink manufacturing aptitude is insufficient, and when it exceeds 74% by weight, there is a problem that the printability is insufficient.

또한 지방족 고비점 용제의 함량은 2∼7중량%가 바람직하다.In addition, the content of the aliphatic high boiling point solvent is preferably 2 to 7% by weight.

본 발명에 사용되는 건조제로는 망간, 코발트 드라이어 등을 들 수 있으며, 이의 함량은 2∼4중량가 바람직하고, 2중량% 미만으로 첨가하면 인쇄시 건조가 늦어 뒤묻음 현상이 발생하게 되며, 4중량%를 초과하여 첨가하면 인쇄시 잉크의 건조가 빨리 건조되어 인쇄부위가 정확하게 인쇄가 되지 않는 현상이 발생하게 된다.Examples of the desiccant used in the present invention include manganese and cobalt dryers, and the content thereof is preferably from 2 to 4 wt%, and when added to less than 2 wt%, drying occurs during printing, resulting in burping, and 4 wt% If it is added in excess of%, the drying of ink dries quickly during printing, which causes the printing area not to be printed correctly.

상기 지방족 고비점 용제 및 건조제는 이색성 형광잉크의 제조시에 동일하게 사용될 수 있다.The aliphatic high boiling point solvent and the drying agent may be equally used in the preparation of the dichroic fluorescent ink.

또한, 본 발명의 이색성 형광잉크의 제조시에 사용되는 유색잉크는 황색, 적색, 청색으로 이루어진 군으로부터 선택되지만, 이에 한정되는 것은 아니다. 상기 유색잉크 혼합 비율에 따라 다음과 같은 기능이 있다. 유색잉크인 단색을 이용, 황색과 적색을 혼합하여 오렌지색을 제조할 때 잉크농도는 3∼6중량%를 유지하여야 칼라 출력기(복사기, 프린터기)에서 색소실 효과를 얻을 수 있다.Further, the colored ink used in the production of the dichroic fluorescent ink of the present invention is selected from the group consisting of yellow, red, and blue, but is not limited thereto. According to the colored ink mixing ratio has the following functions. When producing orange color by mixing yellow and red by using monochromatic colored ink, ink concentration should be maintained at 3 ~ 6% by weight to obtain dye effect on color printer (copier, printer).

예를 들어, 오렌지색 잉크 6%농도에 비가시 형광물질인 CD702 3중량%와 CD770 19중량%를 혼합함에 따라 가시광에서는 오렌지색, 장파(365㎚) 자외선 조사시 녹색, 단파(254㎚) 자외선 조사시 적색이 나타나는 효과가 있다.For example, by mixing 3% by weight of the invisible fluorescent substance CD702 and 19% by weight of CD770 at 6% concentration of orange ink, orange in visible light, green at long wave (365 nm) ultraviolet irradiation, and green at short wavelength (254 nm) ultraviolet irradiation. It has the effect of red color.

또한 상기 유색잉크는 황색, 적색, 또는 청색의 유색안료 3∼6중량%, 바니시 87∼92중량% 및 지방족 고비점 용제 2∼7중량%를 혼합하여 제조될 수 있다.In addition, the colored ink may be prepared by mixing 3 to 6% by weight of yellow, red or blue colored pigments, 87 to 92% by weight of varnish and 2 to 7% by weight of an aliphatic high boiling point solvent.

이러한 본 발명에 따른 잉크를 적용한 예를 도 2 및 도 3에 도시한다.Examples of applying the ink according to the present invention are shown in FIGS. 2 and 3.

도 2는 본 발명에 따른 비가시 형광물질(단파, 장파)과 바니시의 혼합 원리를 나타내는 단면로서, 단파(254㎚)에서 발광하는 비가시 형광물질(1)과 장파(365㎚)에서 발광하는 비가시 형광물질(2)을 바니시(3)에 혼합한 상태를 나타낸다. 또한, 도 3은 도 2에서 비가시 형광잉크에 유색잉크를 투입하여 이색성 형광잉크를 나타내는 사시도로서, 단파(254㎚)에서 발광하는 비가시 형광물질(1)과 장파(365㎚)에서 발광하는 비가시 형광물질(2)을 유색잉크(황색, 적색, 청색)(4)에 혼합한 상태를 나타낸다.2 is a cross-sectional view showing the mixing principle of the invisible fluorescent material (short wave, long wave) and varnish according to the present invention, which emits light at the invisible fluorescent material 1 and the long wave (365 nm) emitting light at a short wave (254 nm) The state where the invisible fluorescent substance 2 was mixed with the varnish 3 is shown. 3 is a perspective view illustrating a dichroic fluorescent ink by adding colored ink to an invisible fluorescent ink in FIG. 2, which emits light at an invisible fluorescent substance 1 and a long wave (365 nm) that emit light at a short wave (254 nm). The invisible fluorescent substance 2 is shown mixed with colored ink (yellow, red, blue) (4).

전술한 방법에 의해 제조된 본 발명에 따른 이색성 형광잉크를 은행권, 유가증권류, 여권의 신원정보 및 사증란, 특수문서, 카드류, 각종 신분증 등에 평활판 인쇄방식을 이용하여 적용한다. 이렇게 얻어진 최종 제품들의 고해상 컬러출력기(복사기, 프린터기)에 의한 위·변조할 경우, 가시광선에서 나타나는 색상은 소실되며, 형광 효과가 특정 파장(장파, 단파)에서 나타나지 않으므로써, 위·변조 여부를 가시적 및 기기를 통해 쉽게 확인할 수 있다.The dichroic fluorescent ink according to the present invention prepared by the above-described method is applied to banknotes, securities, passport identity information and visa column, special documents, cards, various identification cards using a smooth printing method. In the case of forgery and modulation by the high resolution color printers (copiers and printers) of the final products thus obtained, the color of visible light is lost, and the fluorescence effect does not appear at a specific wavelength (long wave or short wave). Visible and easily visible through the instrument.

하기 실시예를 통해 본 발명을 좀 더 구체적으로 살펴보지만, 하기 예에 본 발명의 범주가 한정되는 것은 아니다.Although the present invention will be described in more detail with reference to the following examples, the scope of the present invention is not limited to the following examples.

실시예Example

<제1공정><Step 1>

자외선광에서 색상이 발광하는 비가시 장파(365㎚) 형광물질인 루미룩스(LUMILUX) CD 702(녹색 발광) 3중량%와 비가시 단파(254㎚) 형광물질인 루미룩스 CD 770(적색 발광) 19중량%를 로진 변성 페놀수지로 제조한 바니시 70중량%, 석유계 고비점 용제 6중량% 및 코발트 드라이어 2중량%를 혼합하여 3롤 밀(3 Roll Mill)로 4∼5회 분산 연육하여 비가시 형광잉크를 제조하였다.3% by weight of LUMILUX CD 702 (green light emission), an invisible long-wave (365 nm) fluorescent material that emits light under ultraviolet light, and Lumilux CD 770 (red light emission), an invisible short-wave (254 nm) fluorescent material 19 wt% of the varnish made of rosin modified phenolic resin, 70 wt% of petroleum-based high boiling point solvent, and 2 wt% of cobalt dryer were mixed and dispersed and rolled 4 to 5 times with a 3 roll mill. Fluorescent ink was prepared.

<제2공정><Step 2>

황색의 디사조 옐로계 안료 5중량%, 청색의 시아닌 블루계 안료 5중량%, 적색의 카민 6B계 안료 5중량% 각각에 로진변성 페놀수지로 제조한 바니시 90중량% 및 석유계 고비점 용제 Y429 5중량%를 혼합하여 3롤 밀(3 Roll Mill)로 4∼5회 분산 연육하여 단색인 황색, 청색, 적색의 유색잉크를 각각 제조하였다.90% by weight of varnish made of rosin-modified phenol resin and 5% by weight of petroleum-based high boiling point solvent, respectively, in 5% by weight of yellow disazo yellow pigment, 5% by weight of blue cyanine blue pigment, and 5% by weight of red carmine 6B pigment. 5% by weight of the mixture was dispersed and ground four to five times in a three roll mill (3 Roll Mill) to prepare a yellow, blue and red colored ink, respectively.

<제3공정><Step 3>

제1공정에서 제조된 비가시 형광잉크 85중량%에 제2공정에서 제조된 유색잉크인 적색 5중량%, 청색 5중량%, 지방족 고비점 용제 2중량%, 코발트 드라이어 3중량%를 혼합하여 3롤 밀(3 Roll Mill)로 2∼3회 분산 연육하여 이색성 형광잉크를 제조하였다. 이와 같이 제조된 잉크의 물성은 하기와 같다.85% by weight of the invisible fluorescent ink prepared in the first step 5% by weight red, 5% by weight blue, 2% by weight aliphatic high boiling point solvent, 3% by weight cobalt dryer 3 Dichroic fluorescent ink was prepared by dispersing and grinding 2-3 times with a roll mill (3 Roll Mill). The physical properties of the ink thus prepared are as follows.

* 유동도 Ф㎝(25℃, 1분): 3.00∼3.30* Flow rate Ф㎝ (25 ℃, 1min): 3.00 ~ 3.30

(* 유동도 측정은 Toyoseiki사 Spread-o-meter를 이용하여 항온수조를 연결하고 온도는 25℃에서 인쇄잉크의 흐름을 비교 측정하였다.)(* Flow rate was measured using a Spread-o-meter manufactured by Toyoseiki Corporation. The temperature of the print ink was measured at 25 ° C.)

* 택크(Tack, 32℃, 50m/분): 80∼100* Tack (Tack, 32 ℃, 50m / min): 80-100

(* 택크 측정은 32℃에서 Tack-o-Scope를 사용하였으며, 잉크량은 잉크 피펫으로 정확하게 0.5cc를 취하여 로라회전속도 50m/min에서 측정하였다.)(* Tack was measured at 32 ° C using Tack-o-Scope, and the ink amount was measured at the rotational speed of 50 m / min by accurately taking 0.5 cc with an ink pipette.)

* 건조시간 : 30∼40시간* Drying time: 30 ~ 40 hours

<제4공정><Step 4>

앞에서 제조된 이색성 형광잉크를 평·활판인쇄방식을 이용하여 은행권, 유가증권류, 각종 신분증의 지문에 적용하였다. 본 발명에 따라 제조된 은행권, 유가증권을 위·변조하기 위하여 고해상 컬러 출력기(복사기, 프린터기)를 이용하여 출력시 색소실되어 나타나지 않으며, 인쇄물에서는 이색성 형광잉크 적용 패턴이 가시광에서는 청회색, 자외선 광인 장파(365㎚)에서는 녹색, 단파(254㎚)에서는 적색이 나타나므로서 위·변조 여부를 쉽게 육안에 의한 검사와 기기에 의한 검사를 확인할 수 있었다.The dichroic fluorescent ink prepared above was applied to the fingerprints of banknotes, securities, and various identification cards by using a flat printing system. In order to forgery and forgery banknotes and securities manufactured in accordance with the present invention, high-resolution color printers (copiers, printers) do not appear in the dyeing chamber during printing, and the dichroic fluorescent ink application patterns in printed matter are blue gray and ultraviolet light. The green wave at the long wave (365 nm) and the red color at the short wave (254 nm) make it easy to check the inspection by the naked eye and the inspection by the device.

상기 실시예를 통해 알 수 있는 바와 같이, 본 발명에 따른 이색성 형광잉크를 은행권, 유가증권류, 여권의 신원정보 및 사증란, 각종 신분증 등에 적용하면, 제품 특정부위의 패턴 색상이 청회색이고, 자외선 조사시 장파(365㎚)에서는 녹색으로 나타나고, 단파(254㎚)에서는 적색으로 나타나는 효과가 있다. 위·변조를 위해 컬러 출력기(복사기, 프린터기 등)에 의해 복사할 경우에는 유색은 색소실 효과가 나타나고, 형광은 이색성 형광 효과가 나타나지 않으므로 가시적 및 기기에 의해 위·변조 사실을 쉽게 확인할 수 있다.As can be seen through the above embodiment, when the dichroic fluorescent ink according to the present invention is applied to banknotes, securities, passport information and visa column, various identification cards, and the like, the pattern color of the specific part of the product is blue gray, and ultraviolet light It has the effect of appearing green in the long wave (365 nm) at the time of irradiation and in red in the short wave (254 nm). When copying by a color output device (copier, printer, etc.) for forgery and modulation, coloration shows a dye-room effect, and fluorescence does not show a dichroic fluorescence effect. .

Claims (4)

비가시 장파 형광물질 3∼8중량%, 비가시 단파 형광물질 19∼40중량%, 바니시 41∼74중량%, 지방족 고비점 용제 2∼7중량% 및 망간 또는 코발트 드라이어의 건조제 2∼4중량%를 포함하는 비가시 형광잉크 83∼91중량%;3 to 8% by weight of invisible longwave fluorescent material, 19 to 40% by weight of invisible short wave fluorescent material, 41 to 74% by weight varnish, 2 to 7% by weight aliphatic high boiling point solvent and 2 to 4% by weight of desiccant of manganese or cobalt dryer 83 to 91% by weight of an invisible fluorescent ink comprising a; 황색, 적색 또는 청색을 갖는 유색잉크 3∼6중량%;3-6% by weight of colored ink having yellow, red or blue color; 지방족 고비점 용제 2∼7중량%; 및2 to 7% by weight of an aliphatic high boiling point solvent; And 망간 또는 코발트 드라이어의 건조제 2∼4중량%;2-4% by weight of a desiccant of manganese or cobalt dryer; 를 포함하는 것을 특징으로 하는 위변조 방지용 이색성 형광잉크.Dichroic fluorescent ink for preventing forgery, characterized in that it comprises a. 제1항에 있어서, 상기 비가시 장파 형광물질은 365nm에서 발광하며, 비가시 단파 형광물질은 254nm에서 발광하는 것을 특징으로 하는 위변조 방지용 이색성 형광잉크.The forgery-inhibiting dichroic fluorescent ink according to claim 1, wherein the invisible long-wave fluorescent material emits light at 365 nm and the invisible short-wave fluorescent material emits light at 254 nm. 제1항에 있어서, 상기 비가시 장단파 형광물질은 루미룩스(LUMILUX) CD 402, 702 및 770로 이루어진 군으로부터 선택되는 것을 특징으로 하는 위변조 방지용 이색성 형광잉크.The forgery-inhibiting dichroic fluorescent ink according to claim 1, wherein the invisible long-wave fluorescent material is selected from the group consisting of LUMILUX CD 402, 702, and 770. 제1항 내지 제3항 중 어느 한 항에 따른 이색성 형광잉크를 위변조 방지를 위해 유가증권류의 액면, 여권의 신원정보 및 사증란, 특수문서 및 각종 신분증에적용하는 방법.A method of applying the dichroic fluorescent ink according to any one of claims 1 to 3 to the face value of securities, identity information and visa column, special documents, and various identification cards to prevent forgery and alteration.
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Publication number Priority date Publication date Assignee Title
KR101223251B1 (en) * 2010-12-27 2013-01-21 한국조폐공사 Composition for Preventing Counterfeit and Method for Discriminating Using the Same
KR20160077706A (en) * 2014-12-24 2016-07-04 한국조폐공사 Ink for anti-counterfeiting by using phosphor complex, and the use thereof
KR101699766B1 (en) * 2015-08-26 2017-01-25 류일영 Eco thermal paper Manufacturing method with security element

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KR101073375B1 (en) * 2008-12-23 2011-10-17 한국조폐공사 Offset printing ink for security printing with machine readable features
KR100952140B1 (en) * 2009-07-08 2010-04-09 한국조폐공사 Ink foranti-counterfeiting by using X-ray sensing material
KR102585243B1 (en) 2021-05-26 2023-10-05 한국생산기술연구원 Fluorescent ink composition for anti-counterfeit, method for preparing fluorescent ink composition, and security document preventing counterfeit using the ink composition

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Publication number Priority date Publication date Assignee Title
KR101223251B1 (en) * 2010-12-27 2013-01-21 한국조폐공사 Composition for Preventing Counterfeit and Method for Discriminating Using the Same
KR20160077706A (en) * 2014-12-24 2016-07-04 한국조폐공사 Ink for anti-counterfeiting by using phosphor complex, and the use thereof
KR101699766B1 (en) * 2015-08-26 2017-01-25 류일영 Eco thermal paper Manufacturing method with security element

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