WO2006131034A1 - Optically variable ink having polarization effect - Google Patents

Optically variable ink having polarization effect Download PDF

Info

Publication number
WO2006131034A1
WO2006131034A1 PCT/CN2005/002022 CN2005002022W WO2006131034A1 WO 2006131034 A1 WO2006131034 A1 WO 2006131034A1 CN 2005002022 W CN2005002022 W CN 2005002022W WO 2006131034 A1 WO2006131034 A1 WO 2006131034A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
liquid crystal
pigment
resin
optical color
Prior art date
Application number
PCT/CN2005/002022
Other languages
French (fr)
Chinese (zh)
Inventor
Hongbo Wang
Yafu Wu
Jie Jin
Shifan Zhang
Ying Hua
Weiheng Zhang
Original Assignee
Shanghai Banknote Printing Plant
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Banknote Printing Plant filed Critical Shanghai Banknote Printing Plant
Publication of WO2006131034A1 publication Critical patent/WO2006131034A1/en

Links

Classifications

    • 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
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • 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
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks

Definitions

  • the invention relates to an anti-counterfeiting ink, in particular to an optical color changing oil with polarization effect
  • optically variable pigments using a polymerized cholesterol liquid crystal system have also been successfully developed and put on the market in large quantities.
  • the optically variable pigment of the polymerized cholesteric liquid crystal system alone, we have found that since the liquid crystal pigment itself is nearly transparent, the photo-induced effect of the liquid crystal pigment is conditional, and it is necessary to print the ink prepared by the CLC pigment in black. On the bottom layer of the dark color, this will inevitably increase the printing process, increase the printing cost, and complicate the overall printing process of the printed product.
  • optically variable pigments containing a polymerized cholesteric liquid crystal system in addition to having a light-changing effect, are also left-handed or right-handed in two different chiralities.
  • Polarized light circularly polarized light
  • has a selective anti-f effect which can be applied to the field of anti-counterfeiting.
  • the present invention provides a novel optical color changing ink having a polarization effect, so as to improve the comprehensive anti-counterfeiting of optical color-changing inks. ability.
  • An optical color changing ink having a polarizing effect comprising a multilayer interference pigment, a liquid crystal pigment, a binder or a resin, a filler, and a solvent.
  • the multilayer interference pigment may be any interference pigment prepared by a physical deposition method or a chemical deposition method.
  • optical interference pigments prepared by pulverizing a multilayer metal dielectric film are the best choice. For example, FLEX's photo-based pigmentation based on optical deposition or BASF's Variochrom range of pigments.
  • Liquid crystal pigments must have left-handed or right-handed circular polarization properties.
  • the main structure of such a liquid crystal pigment may be a cholesteric liquid crystal, a nematic or smectic liquid crystal having a chiral structure, or the like.
  • the raw material for preparing a liquid crystal may be a cellulose derivative, an acrylic monomer, a polyester-based molecular compound, or a polysiloxane-based polymer material.
  • Liquid crystals can be prepared by simple chemical reactions of one or more starting materials.
  • a method for preparing a liquid crystal pigment having a left-handed circular polarization property can be obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801.
  • Liquid crystal pigments with right-handed circular polarization properties can be selected from the Helicone series of pigments produced by Wacker.
  • the multilayer interference pigment accounts for 2% to 30% of the ink content. (weight); liquid crystal pigments account for 2%-30% by weight of the ink content; binder content of 20-60% by weight, fillers 1-20% by weight, wax 0-5% (by weight) , surface active 3-7% by weight, 1-3% by weight of desiccant; 1-10% by weight of solvent.
  • the resin used for the binder includes an alkyd resin, a phenol resin, a urea resin, a polymerized linoleum, etc.;
  • the vegetable oil includes linoleum, soybean oil, tung oil, etc.;
  • the filler comprises calcium carbonate, silica, bentonite, barium sulfate, etc.;
  • surfactants include anionic surfactants, nonionic surfactants; solvents include mineral oil, kerosene, high boiling organic solvents.
  • the multilayer interference pigment accounts for 2% to 30% by weight of the ink content;
  • the liquid crystal pigment accounts for 2% to 30% by weight of the ink content;
  • the content is 10-60% by weight, the solvent is 20-60% by weight, and the filler is 0-30% by weight.
  • the resin comprises a cellulose resin, an acrylic resin, a ketone resin, a polyurethane, etc.; wherein the solvent is mainly ethylene glycol ethyl ether acetate, diethylene glycol butyl ether, ethylene glycol methyl ether, high boiling point hydrazine Hydrocarbon solvent, butyl acetate, methyl ethyl ketone, ethyl acetate, isopropanol, ethanol, xylene, isoamyl acetate, cyclohexanone, etc.; the filler is mainly silica, calcium carbonate and the like.
  • the optical color changing ink with polarizing effect provided by the invention adopts a multi-layer interference pigment, a liquid crystal pigment, a binder or a resin, a filler and a solvent to be added to a high-speed mixer or a sand mill to obtain an ink, and the ink can be printed with the ink once.
  • the printed pattern has both anti-counterfeiting effects of optical discoloration and circularly polarized reflection, and bright colors can be observed under left-handed or right-handed vertical polarized light.
  • the interference pigment and liquid crystal pigment for the ink the reflection wavelength of the polarized light can be adjusted to achieve different effects of the interference color wavelength of the ink reflected polarized light and the ink itself.
  • a single optical security ink cannot be achieved.
  • the ink not only compensates for the single anti-counterfeiting property of the light-changing ink using the interference pigment, but also solves the problem that the liquid crystal ink has poor light quality and complicated printing process. problem.
  • the anti-counterfeiting ink of the invention has the advantages of convenient use, low cost, good anti-counterfeiting effect and the like
  • Example 1 The following describes how the invention is implemented in conjunction with specific embodiments: Example 1 :
  • a screen printing ink according to the following formula: Light interference pigment (red-green, from FLEX) 13g liquid crystal pigment Maple (from Wacker Chemical) 15g
  • Example 2 The components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed with the ink is red in vertical viewing and blue-green in oblique viewing.
  • the pattern has a pronounced golden-red luster under right-handed vibrating light.
  • the interference color under vertical viewing of the ink is similar to that observed under right-handed polarized light.
  • a screen printing ink according to the following formula:
  • Light interference pigment green-blue, from FLEX 22g
  • Example 3 The components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed with the ink is green in vertical viewing and blue in oblique viewing.
  • the pattern has a pronounced golden-red luster under the observation of right-handed polarized light.
  • the color observed under right-handed polarized light differs from the color of the ink itself.
  • a screen printing ink according to the following formula - Light interference pigment (green-blue, from FLEX) 10g
  • Example 4 The components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed with the ink is brown in vertical view and blue-green in oblique viewing.
  • the pattern has a sharp golden red luster on the right-handed side.
  • the color observed under right-handed polarized light differs from the color of the ink itself.
  • a screen printing ink according to the following formula:
  • Optical interference pigment L4420 (from BASF) 13g
  • Example 5 The components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed with the ink which is red in vertical viewing and yellow-green in oblique viewing.
  • the pattern has a pronounced golden-red luster under right-handed vibrating light.
  • Light interference pigment green-blue, from FLEX 20g
  • the ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation.
  • the pattern printed using the ink is green in vertical viewing and blue in oblique viewing.
  • the pattern has a pronounced golden-red luster under the observation of right-handed polarized light.
  • the color of the color observed under the right-handed polarized light is different from the color of the ink itself.
  • Light interference pigment (blue-red, from FLEX) 22g
  • the preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801.
  • the reflection wavelength of the liquid crystal pigment was adjusted to 600 nm, and the average particle diameter of the pigment after pulverization was 22 um.
  • the ink was prepared by charging each component into a high-speed planetary agitator with a vacuum seal according to the above formulation.
  • the pattern printed with the ink showed a blue-green light in the vertical view and a reddish-brown color in the oblique viewing angle.
  • the pattern has a pronounced golden-red luster under left-handed polarized light.
  • the color observed under left-handed polarized light is different from the interference color from the ink itself.
  • Example 7 Preparation of engraved gravure inks - Light interference pigments (green-blue, from FLEX) 20g
  • the ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation.
  • the pattern printed using the ink is green in vertical viewing and blue in oblique viewing.
  • the pattern has a distinct green luster under the observation of right-handed polarized light.
  • a screen printing ink according to the following formula:
  • the preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801.
  • the reflection wavelength of the liquid crystal pigment was adjusted to 600 nm, and the average particle diameter of the pigment after pulverization was 22 um.
  • the components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed using the ink is gold-green in vertical viewing and blue-green in oblique viewing.
  • the pattern has a pronounced golden red luster under both left-handed and right-handed polarized light. Left-handed and right-handed polarized light
  • the observed color is different from the interference color with the ink itself.
  • a screen printing ink according to the following formula:
  • Light interference pigment (red-green, from FLEX) 20g
  • the preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801.
  • the reflection wavelength of the liquid crystal pigment is adjusted to 600 ⁇ , and the average particle diameter of the pigment after pulverization is 22 um.
  • the components were placed in a sander according to the above formula to obtain an ink.
  • the pattern printed with this ink is red in vertical view and green in oblique viewing.
  • the pattern has a pronounced golden-red luster under left-handed polarized light and a distinct golden yellow luster under right-handed polarized light. And the color under the two polarized lights is different from the interference color of the ink itself.
  • High boiling point solvent 3g The ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation.
  • the pattern printed with the ink was golden yellow in vertical view and brown in oblique viewing angle.
  • the pattern has a pronounced golden-red luster under the observation of right-handed polarized light.

Landscapes

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

Abstract

Optically variable ink having polarization effect, is prepared from multi-layer interference pigments, liquid crystal pigments, binders/resins, fillers and ink additives by conventional mixing methods. Pattern printed with this ink appears bright color under laevorotary or dextrorotary polarized light. By selecting proper multi-layer pigments and liquid crystal pigments, the color wavelength appeared by the obtained ink under laevorotary or dextrorotary polarized light is different to the interference color wavelength of ink itself. The present invention has the advantages of low cost, excellent security, etc.

Description

一种具有偏振效果的光学变色油墨  Optical color changing ink with polarization effect
技术领域 Technical field
本发明涉及一种防伪油墨， 尤其涉及一种具有偏振效果的光学变色油 The invention relates to an anti-counterfeiting ink, in particular to an optical color changing oil with polarization effect
S o 背景技术 S o background technology
在现有防伪技术中， 为了表现优良的光学变色效果， 我们往往通过釆用 物理堆积法制备的光变颜料（0VP)来制备光学变色油墨， 用该油墨印刷的图 文从不同的角度观察能变幻出不同的颜色， 且变色效果非常强烈， 是用于货 币、证件等高安全产品的首选防伪油墨。 US4705300, US5084351, CN1496393A 等相关文献描述了采用物理堆积法制备的光学变色颜料及相关颜料在油墨领 域应用的方法。 近年来， 随着生产技术的进步和制备工艺的不断完善， 这类 光变颜料的生产和应用得到了拓展， 但随着光变颜料生产厂家及使用者的增 多， 该类油墨在印刷领域的防伪性能单一性日益明显， 其防伪力度有所降低。  In the existing anti-counterfeiting technology, in order to express an excellent optical color-changing effect, we often prepare an optical color-changing ink by using an optically variable pigment (0VP) prepared by a physical deposition method, and the image printed by the ink can be observed from different angles. Different colors are changed, and the color change effect is very strong. It is the preferred anti-counterfeiting ink for high security products such as currency and documents. Related documents such as US4705300, US5084351, CN1496393A and the like describe methods of applying optically variable pigments and related pigments prepared by physical deposition in the ink field. In recent years, with the advancement of production technology and the continuous improvement of the preparation process, the production and application of such optically variable pigments have been expanded, but with the increase of manufacturers and users of optical pigments, such inks are in the field of printing. The anti-counterfeiting performance is becoming more and more obvious, and its anti-counterfeiting strength is reduced.
同时， 随着光变油墨和涂料等产品在其它领域需求面的扩大，多种价格 低廉的新型光变颜料也不断出现。 特别是根据相关文献， 如 US5624468、 US4978394, US4744832 US5693134等釆用化学蒸汽沉积法制备的低成本光变 颜料也大量涌现。在一定程度上了影响了光变颜料在防伪领域的应用。为此， 只有在现有光变油墨的基础上添加相应的新的防伪能力， 才能提高光变油墨 的技术门槛， 有效地打击伪造。  At the same time, with the expansion of demand for products such as optically variable inks and coatings in other fields, a variety of new low-cost optical pigments have emerged. In particular, according to the related literature, low-cost optically variable pigments prepared by chemical vapor deposition, such as US5624468, US4978394, US4744832 US5693134, etc., have also appeared in large numbers. To a certain extent, it has affected the application of optically variable pigments in the field of anti-counterfeiting. For this reason, only by adding a corresponding new anti-counterfeiting capability on the basis of the existing optically variable ink can the technical threshold of the optically variable ink be improved and the counterfeiting can be effectively combated.
此外， 根据 EP601483、 EP686674及相关专利的描述， 采用聚合胆固醇液 晶体系的光变颜料也已经开发成功， 并被大量地投放市场。 在单独使用聚合 胆固醇液晶体系的光变颜料的过程中， 我们发现由于液晶颜料本身是接近透 明的， 为此其光变效应的产生是有条件的， 既必须将 CLC颜料制备的油墨印刷 在黑色或深色的底层上， 如此一来， 势必增加印刷工序， 增加印刷成本， 使 印刷产品整体的印刷工艺复杂化。  Further, according to the descriptions of EP601483, EP686674 and related patents, optically variable pigments using a polymerized cholesterol liquid crystal system have also been successfully developed and put on the market in large quantities. In the process of using the optically variable pigment of the polymerized cholesteric liquid crystal system alone, we have found that since the liquid crystal pigment itself is nearly transparent, the photo-induced effect of the liquid crystal pigment is conditional, and it is necessary to print the ink prepared by the CLC pigment in black. On the bottom layer of the dark color, this will inevitably increase the printing process, increase the printing cost, and complicate the overall printing process of the printed product.
根据文献 《Novel Pigment Approaches in Optically Variable Security Inks Including Polarizing Cholesteric Liquid Crystal (CLC) Polymers》 (Optical Security and Counterfeit Deterrence Techniques IV, SPIE 4677, 2002)所发表的结论， 我们知道含有聚合胆固醇液晶体系的光变颜料除 了具有光变效果外， 同时还在左旋或右旋两种不同手性的偏振光（圆偏振光） 下具有选择性反 *f效应， 可以将聚合胆固醇液晶的这种偏振反射效果应用于 防伪领域。但单独采用 CLC颜料的油墨在圆偏振片下只能出现垂直方向上明亮 和黑暗特征， 其偏振反射波长并不改变， 因此不能产生与其本身反射波长完 全不同的一种全新的颜色。 发明内容 According to the literature "Novel Pigment Approaches in Optically Variable Security Inks Including Polarizing Cholesteric Liquid Crystal (CLC) Polymers" (Optical Security and Counterfeit Deterrence Techniques IV, SPIE 4677, 2002), we know that optically variable pigments containing a polymerized cholesteric liquid crystal system, in addition to having a light-changing effect, are also left-handed or right-handed in two different chiralities. Polarized light (circularly polarized light) has a selective anti-f effect, which can be applied to the field of anti-counterfeiting. However, inks using CLC pigment alone can only exhibit bright and dark features in the vertical direction under the circular polarizing plate, and the polarization reflection wavelength does not change, so that a completely new color which is completely different from the wavelength of the reflection itself cannot be produced. Summary of the invention
针对已有技术存在的不足， 避免单独使用光变颜料制备光变油墨所受遇 到的伪造威胁， 本发明提供了一种新型的具有偏振效应的光学变色油墨， 以 便提升光学变色油墨的综合防伪能力。  In view of the deficiencies of the prior art, the counterfeiting threat encountered in the preparation of optically variable inks by using optically variable pigments alone is avoided. The present invention provides a novel optical color changing ink having a polarization effect, so as to improve the comprehensive anti-counterfeiting of optical color-changing inks. ability.
实现本发明的具体技术方案如下：  The specific technical solutions for implementing the present invention are as follows:
一种具有偏振效果的光学变色油墨， 包括多层干涉颜料、 液晶颜料、 连 接料或树脂、 填充料及溶剂。  An optical color changing ink having a polarizing effect, comprising a multilayer interference pigment, a liquid crystal pigment, a binder or a resin, a filler, and a solvent.
多层干涉颜料可采用现有任意一种采用物理堆积法或化学堆积法工艺制 备的干涉颜料。 为了要保证该颜料具有较强的光变效果， 那些依靠粉碎多层 金属介质膜所制备的光干涉颜料是最佳的选择。如 FLEX公司基于物理堆积法 的光变颜料或者 BASF公司的 Variochrom系列颜料。  The multilayer interference pigment may be any interference pigment prepared by a physical deposition method or a chemical deposition method. In order to ensure a strong light-changing effect of the pigment, optical interference pigments prepared by pulverizing a multilayer metal dielectric film are the best choice. For example, FLEX's photo-based pigmentation based on optical deposition or BASF's Variochrom range of pigments.
液晶颜料则必须具有左旋或右旋圆偏振性能。 这类的液晶颜料的主体 结构可以为胆甾醇液晶、 具有手性结构的向列或近晶型液晶等。 制备液晶的 原料， 其化学成分可以是纤维素衍生物、 丙烯酸类单体、 聚酯类髙分子化合 物、 聚硅氧烷类高分子材料。 液晶可通过一种或多种原料以简单的化学反应 来制得。 其中具有左旋圆偏振性能液晶颜料的制备方法可由粉碎中国专利文 献 CN1408801中所述纤维素液晶薄膜来得到。 具有右旋圆偏振性能液晶颜料 可选自瓦克 （Wacker) 公司生产的 Helicone系列颜料。  Liquid crystal pigments must have left-handed or right-handed circular polarization properties. The main structure of such a liquid crystal pigment may be a cholesteric liquid crystal, a nematic or smectic liquid crystal having a chiral structure, or the like. The raw material for preparing a liquid crystal may be a cellulose derivative, an acrylic monomer, a polyester-based molecular compound, or a polysiloxane-based polymer material. Liquid crystals can be prepared by simple chemical reactions of one or more starting materials. A method for preparing a liquid crystal pigment having a left-handed circular polarization property can be obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801. Liquid crystal pigments with right-handed circular polarization properties can be selected from the Helicone series of pigments produced by Wacker.
当所述的具有偏振效果的光学变色油墨是雕刻凹版油墨， 则多层干涉颜 料占油墨含量的 2%-30/。 (重量）； 液晶颜料占油墨含量的 2%-30% (重量）； 连接 料含量占 20-60% (重量）， 填充料占 1-20% (重量）， 蜡 0-5% (重量）， 表面活性 剂 3-7% (重量）， 干燥剂 1-3% (重量）； 溶剂 1-10% (重量）。 When the optical color changing ink having a polarizing effect is an engraved gravure ink, the multilayer interference pigment accounts for 2% to 30% of the ink content. (weight); liquid crystal pigments account for 2%-30% by weight of the ink content; binder content of 20-60% by weight, fillers 1-20% by weight, wax 0-5% (by weight) , surface active 3-7% by weight, 1-3% by weight of desiccant; 1-10% by weight of solvent.
其中连接料所用树脂包括醇酸树脂、酚醛树脂、脲醛树脂、聚合亚油等; 植物油包括亚油、 豆油、 桐油等； 填充料包括碳酸钙、 二氧化硅、 膨润土、 硫酸钡等； 蜡包括聚乙烯蜡、 聚四氟乙烯蜡， 氧化聚乙烯蜡等； 表面活性剂 包括阴离子表面活性剂、 非离子型表面活性剂； 溶剂包括矿油， 煤油， 高沸 点有机溶剂。  The resin used for the binder includes an alkyd resin, a phenol resin, a urea resin, a polymerized linoleum, etc.; the vegetable oil includes linoleum, soybean oil, tung oil, etc.; the filler comprises calcium carbonate, silica, bentonite, barium sulfate, etc.; Ethylene wax, polytetrafluoroethylene wax, oxidized polyethylene wax, etc.; surfactants include anionic surfactants, nonionic surfactants; solvents include mineral oil, kerosene, high boiling organic solvents.
当所述的具有偏振效果的光学变色油墨是丝网印刷油墨，多层干涉颜料 占油墨含量的 2%- 30% (重量）； 液晶颜料占油墨含量的 2%- 30% (重量）； 树脂含 量占 10- 60% (重量）， 溶剂 20- 60% (重量）， 填充料占 0-30% (重量）。  When the optical color changing ink having a polarizing effect is a screen printing ink, the multilayer interference pigment accounts for 2% to 30% by weight of the ink content; the liquid crystal pigment accounts for 2% to 30% by weight of the ink content; The content is 10-60% by weight, the solvent is 20-60% by weight, and the filler is 0-30% by weight.
其中所述树脂包括纤维素类树脂、 丙烯酸树脂、 醒酮树脂、 聚氨酯等； 其中所述的溶剂主要为乙二醇乙醚醋酸酯、二乙二醇丁醚、 乙二醇甲醚、 高沸点垸烃溶剂、 乙酸丁酯、 丁酮、 乙酸乙酯、 异丙醇、 乙醇、 二甲苯、 乙 酸异戊酯、 环己同酮等； 填充料主要是二氧化硅、 碳酸钙等。  Wherein the resin comprises a cellulose resin, an acrylic resin, a ketone resin, a polyurethane, etc.; wherein the solvent is mainly ethylene glycol ethyl ether acetate, diethylene glycol butyl ether, ethylene glycol methyl ether, high boiling point hydrazine Hydrocarbon solvent, butyl acetate, methyl ethyl ketone, ethyl acetate, isopropanol, ethanol, xylene, isoamyl acetate, cyclohexanone, etc.; the filler is mainly silica, calcium carbonate and the like.
本发明提供的具有偏振效果的光学变色油墨， 其采用多层干涉颜料、 液 晶颜料、 连接料或树脂、 填充料及溶剂等加入高速搅拌机或砂磨机， 制得油 墨， 使用该油墨印刷图案可以一次性印刷成型， 印刷的图案兼具光学变色和 圆偏振反射的防伪效果，在左旋或右旋垂直偏振光观察下可显现明亮的颜色。 特别要指出的是， 通过对油墨用干涉颜料和液晶颜料的选择， 可以调控偏振 光的反射波长， 以达到油墨反射偏振光与油墨本身的干涉颜色波长各不相同 的效果， 这一效果是任何单一的光学防伪油墨所不能达到的。 该油墨通过将 具有光变效果的多层干涉颜料与液晶颜料结合使用， 既弥补了使用干涉颜料 的光变油墨防伪性能单一的缺点， 同时又解决了液晶油墨光变不佳、 印刷工 艺复杂的难题。 本发明的防伪油墨具有使用方便、 成本低、 防伪效果好等优  The optical color changing ink with polarizing effect provided by the invention adopts a multi-layer interference pigment, a liquid crystal pigment, a binder or a resin, a filler and a solvent to be added to a high-speed mixer or a sand mill to obtain an ink, and the ink can be printed with the ink once. Printed, the printed pattern has both anti-counterfeiting effects of optical discoloration and circularly polarized reflection, and bright colors can be observed under left-handed or right-handed vertical polarized light. In particular, by selecting the interference pigment and liquid crystal pigment for the ink, the reflection wavelength of the polarized light can be adjusted to achieve different effects of the interference color wavelength of the ink reflected polarized light and the ink itself. A single optical security ink cannot be achieved. By using a multi-layer interference pigment having a light-varying effect in combination with a liquid crystal pigment, the ink not only compensates for the single anti-counterfeiting property of the light-changing ink using the interference pigment, but also solves the problem that the liquid crystal ink has poor light quality and complicated printing process. problem. The anti-counterfeiting ink of the invention has the advantages of convenient use, low cost, good anti-counterfeiting effect and the like
具体实施方式 detailed description
下面结合具体实施例进一步说明本发明是如何实现的: 实施例 1: The following describes how the invention is implemented in conjunction with specific embodiments: Example 1 :
一种丝网印刷油墨， 按以下配方： 光干涉颜料（红 -绿， 来自 FLEX公司） 13g 液晶颜料 Maple (来自瓦克化学） 15g A screen printing ink, according to the following formula: Light interference pigment (red-green, from FLEX) 13g liquid crystal pigment Maple (from Wacker Chemical) 15g
聚氨酯树脂液 （含 50%醋酸丁酯） 65g Polyurethane Resin (50% Butyl Acetate) 65g
乙二醇乙醚醋酸酯 5g Ethylene glycol ethyl ether acetate 5g
二氧化硅 2g Silica 2g
消泡剂 HX2086 (来自华夏助剂） 0. 5g Defoamer HX2086 (from China Auxiliary) 0. 5g
按以上配方将各组分装入砂磨机砂磨， 制得油墨。 使用该油墨印刷的图 案， 在垂直观察下为红色， 而在斜观察角则显示出蓝绿光。 该图案在右旋偏 振光观察下具有明显的金红色光泽。 油墨垂直观察下的干涉颜色与右旋偏振 光观察下的颜色相似。 实施例 2:  The components were placed in a sander according to the above formula to obtain an ink. The pattern printed with the ink is red in vertical viewing and blue-green in oblique viewing. The pattern has a pronounced golden-red luster under right-handed vibrating light. The interference color under vertical viewing of the ink is similar to that observed under right-handed polarized light. Example 2:
一种丝网印刷油墨， 按以下配方： A screen printing ink, according to the following formula:
光干涉颜料 （绿-蓝， 来自 FLEX公司） 22g Light interference pigment (green-blue, from FLEX) 22g
液晶颜料 Maple (来自瓦克化学） 10g Liquid Crystal Pigment Maple (from Wacker Chemical) 10g
聚氨酯树脂液 （含 50%醋酸丁酯） 58g Polyurethane Resin (50% Butyl Acetate) 58g
乙二醇乙醚醋酸酯 8g Ethylene glycol ethyl ether acetate 8g
二氧化硅 2g Silica 2g
消泡剂 HX2086 (来自华夏助剂） 0. 5g Defoamer HX2086 (from China Auxiliary) 0. 5g
按以上配方将各组分装入砂磨机砂磨， 制得油墨。 使用该油墨印刷的图 案， 在垂直观察下为绿色， 而在斜观察角则显示出蓝光。 该图案在右旋偏振 光观察下具有明显的金红色光泽。 在右旋偏振光观察下的颜色与油墨本身的 干涉颜色各不相同。 实施例 3:  The components were placed in a sander according to the above formula to obtain an ink. The pattern printed with the ink is green in vertical viewing and blue in oblique viewing. The pattern has a pronounced golden-red luster under the observation of right-handed polarized light. The color observed under right-handed polarized light differs from the color of the ink itself. Example 3:
一种丝网印刷油墨， 按以下配方- 光干涉颜料 （绿-蓝， 来自 FLEX公司） 10g A screen printing ink, according to the following formula - Light interference pigment (green-blue, from FLEX) 10g
液晶颜料 Maple (来自瓦克化学） 22g 聚氨酯树脂液（含 50%醋酸丁酯） 58g Liquid Crystal Paint Maple (from Wacker Chemical) 22 g Polyurethane resin solution (containing 50% butyl acetate) 58 g
乙二醇乙醚醋酸酯 8g Ethylene glycol ethyl ether acetate 8g
二氧化硅 2g Silica 2g
消泡剂 HX2086 (来自华夏助剂） 0. 5g Defoamer HX2086 (from China Auxiliary) 0. 5g
按以上配方将各组分装入砂磨机砂磨， 制得油墨。 使用该油墨印刷的图. 案， 在垂直观察下为棕色， 而在斜观察角则显示出蓝绿光。 该图案在右旋偏.. 振光观察下具有明显的金红色光泽。 在右旋偏振光观察下的颜色与油墨本身 的干涉颜色各不相同。 实施例 4:  The components were placed in a sander according to the above formula to obtain an ink. The pattern printed with the ink is brown in vertical view and blue-green in oblique viewing. The pattern has a sharp golden red luster on the right-handed side. The color observed under right-handed polarized light differs from the color of the ink itself. Example 4:
一种丝网印刷油墨， 按以下配方： A screen printing ink, according to the following formula:
光干涉颜料 L4420 (来自 BASF公司） 13g Optical interference pigment L4420 (from BASF) 13g
液晶颜料 Maple (来自瓦克化学） 22g Liquid Crystal Pigment Maple (from Wacker Chemical) 22g
聚氨酯树脂液 （含 50%醋酸丁酯） 58g Polyurethane Resin (50% Butyl Acetate) 58g
乙二醇乙醚醋酸酯 5g Ethylene glycol ethyl ether acetate 5g
二氧化硅 2g Silica 2g
消泡剂 HX2086 (来自华夏助剂） 0. 5g Defoamer HX2086 (from China Auxiliary) 0. 5g
按以上配方将各组分装入砂磨机砂磨， 制得油墨。 使用该油墨印刷的图 案， .在垂直观察下为红色， 而在斜观察角则显示出黄绿光。 该图案在右旋偏 振光观察下具有明显的金红色光泽。 实施例 5:  The components were placed in a sander according to the above formula to obtain an ink. The pattern printed with the ink, which is red in vertical viewing and yellow-green in oblique viewing. The pattern has a pronounced golden-red luster under right-handed vibrating light. Example 5
雕刻凹版油墨的制备： Preparation of engraved gravure ink:
光干涉颜料 （绿 -蓝， 来自 FLEX公司） 20g Light interference pigment (green-blue, from FLEX) 20g
液晶颜料 Maple (来自瓦克化学） 10g Liquid Crystal Pigment Maple (from Wacker Chemical) 10g
醇酸树脂连接料 20g Alkyd resin binder 20g
酚醛树脂连接料 28g Phenolic resin binder 28g
聚合亚油 3g Polymerized linoleum 3g
无机填充料 5g 蜡 5g Inorganic filler 5g Wax 5g
干燥剂 2g Desiccant 2g
表面活性剂 5g Surfactant 5g
高沸点溶剂 2g High boiling point solvent 2g
按以上配方将各组分装入具有真空密封的高速搅拌器， 制得油墨。 使用 该油墨印刷的图案， 在垂直观察下为绿色， 而在斜观察角则显示出蓝光。 该 图案在右旋偏振光观察下具有明显的金红色光泽。 在右旋偏振光观察下的颜 色与油墨本身的干涉颜色各不相同。 实施例 6:  The ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation. The pattern printed using the ink is green in vertical viewing and blue in oblique viewing. The pattern has a pronounced golden-red luster under the observation of right-handed polarized light. The color of the color observed under the right-handed polarized light is different from the color of the ink itself. Example 6:
雕刻凹版油墨的制备： Preparation of engraved gravure ink:
光干涉颜料 （蓝 -红， 来自 FLEX公司） 22g Light interference pigment (blue-red, from FLEX) 22g
左旋液晶颜料 8g L-liquid crystal pigment 8g
醇酸树脂连接料 20g Alkyd resin binder 20g
酚醛树脂连接料 28g Phenolic resin binder 28g
聚合亚油 3g Polymerized linoleum 3g
无机填充料 5g Inorganic filler 5g
蜡 5g Wax 5g
干燥剂 2g Desiccant 2g
表面活性剂 5g ' Surfactant 5g '
高沸点溶剂 ' High boiling point solvent '
左旋液晶颜料的制备方法为粉碎中国专利文献 CN1408801中所述纤维素 液晶薄膜来得到。液晶颜料的反射波长调控为为 600nm，经粉碎后颜料平均粒 径为 22 um。按以上配方将各组分装入具有真空密封的高速行星搅拌器， 制得 油墨。 使用该油墨印刷的图案， 在垂直观察下为蓝绿光， 而在斜观察角则显 示出红棕色。 该图案在左旋偏振光观察下具有明显的金红色光泽。 在左旋偏 振光观察下的颜色与与油墨本身的干涉颜色不同。 实施例 7: 雕刻凹版油墨的制备 - 光干涉颜料 （绿-蓝， 来自 FLEX公司） 20g The preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801. The reflection wavelength of the liquid crystal pigment was adjusted to 600 nm, and the average particle diameter of the pigment after pulverization was 22 um. The ink was prepared by charging each component into a high-speed planetary agitator with a vacuum seal according to the above formulation. The pattern printed with the ink showed a blue-green light in the vertical view and a reddish-brown color in the oblique viewing angle. The pattern has a pronounced golden-red luster under left-handed polarized light. The color observed under left-handed polarized light is different from the interference color from the ink itself. Example 7 : Preparation of engraved gravure inks - Light interference pigments (green-blue, from FLEX) 20g
液晶颜料 JADE (来自瓦克化学） 15g Liquid Crystal Pigment JADE (from Wacker Chemical) 15g
醇酸树脂连接料 18g Alkyd resin binder 18g
酚醛树脂连接料 24g Phenolic resin binder 24g
聚合亚油 3g Polymerized linoleum 3g
无机填充料 5g Inorganic filler 5g
蜡 5g Wax 5g
干燥剂 2g Desiccant 2g
表面活性剂 5g Surfactant 5g
高沸点溶剂 3g High boiling point solvent 3g
按以上配方将各组分装入具有真空密封的高速搅拌器， 制得油墨。 使用 该油墨印刷的图案， 在垂直观察下为绿色， 而在斜观察角则显示出蓝光。 该 图案在右旋偏振光观察下具有明显的绿色光泽。 实施例 8:  The ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation. The pattern printed using the ink is green in vertical viewing and blue in oblique viewing. The pattern has a distinct green luster under the observation of right-handed polarized light. Example 8
一种丝网印刷油墨， 按以下配方： A screen printing ink, according to the following formula:
光千涉颜料 （绿 -蓝， 来自 FLEX公司） 20g Light Thousands of Pigments (Green-Blue, from FLEX) 20 g
右旋液晶颜料 Maple (来自瓦克化学） 7g Right-handed liquid crystal pigment Maple (from Wacker Chemical) 7g
左旋液晶颜料 7g ' L-liquid crystal pigment 7g '
聚氨酯树脂液 （含 50%醋酸丁酯） 54g Polyurethane Resin (50% Butyl Acetate) 54g
乙二醇乙醚醋酸酯 8g Ethylene glycol ethyl ether acetate 8g
二氧化硅 4g Silica 4g
消泡剂 HX2086 (籴自华夏助剂） 0. 5g Defoamer HX2086 (籴自华夏助剂) 0. 5g
左旋液晶颜料的制备方法为粉碎中国专利文献 CN1408801中所述纤维素 液晶薄膜来得到。液晶颜料的反射波长调控为为 600nm，经粉碎后颜料平均粒 径为 22 um。 按以上配方将各组分装入砂磨机砂磨， 制得油墨。使用该油墨印 刷的图案， 在垂直观察下为金绿色， 而在斜观察角则显示出蓝绿光。 该图案 在左旋和右旋偏振光观察下均具有明显的金红色光泽。 在左旋和右旋偏振光 观察下的颜色与与油墨本身的干涉颜色各不相同。 实施例 9: The preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801. The reflection wavelength of the liquid crystal pigment was adjusted to 600 nm, and the average particle diameter of the pigment after pulverization was 22 um. The components were placed in a sander according to the above formula to obtain an ink. The pattern printed using the ink is gold-green in vertical viewing and blue-green in oblique viewing. The pattern has a pronounced golden red luster under both left-handed and right-handed polarized light. Left-handed and right-handed polarized light The observed color is different from the interference color with the ink itself. Example 9
一种丝网印刷油墨， 按以下配方： A screen printing ink, according to the following formula:
光干涉颜料 （红-绿， 来自 FLEX公司） 20g Light interference pigment (red-green, from FLEX) 20g
右旋液晶颜料 JADE (来自瓦克化学） 7g Right-handed liquid crystal pigment JADE (from Wacker Chemical) 7g
左旋液晶颜料 7g L-liquid crystal pigment 7g
聚氨酯树脂液 （含 50%醋酸丁酯） 54g Polyurethane Resin (50% Butyl Acetate) 54g
乙二醇乙醚醋酸酯 8g Ethylene glycol ethyl ether acetate 8g
二氧化硅 4g Silica 4g
消泡剂 HX2086 (来自华夏助剂） 0. 5g Defoamer HX2086 (from China Auxiliary) 0. 5g
左旋液晶颜料的制备方法为粉碎中国专利文献 CN1408801中所述纤维素 液晶薄膜来得到。液晶颜料的反射波长调控为为 600ηιη，经粉碎后颜料平均粒 径为 22 um。按以上配方将各组分装入砂磨机砂磨， 制得油墨。 使用该油墨印 刷的图案， 在垂直观察下为红色， 而在斜观察角则显示出绿色。 该图案在左 旋偏振光观察下具有明显的金红色光泽， 在右旋偏振光观察下具有明显的金 黄光泽。 且两种偏振光下的颜色与油墨本身的干涉颜色各不相同。 实施例 10:  The preparation method of the L-liquid crystal pigment is obtained by pulverizing the cellulose liquid crystal film described in Chinese Patent Publication No. CN1408801. The reflection wavelength of the liquid crystal pigment is adjusted to 600 ηηη, and the average particle diameter of the pigment after pulverization is 22 um. The components were placed in a sander according to the above formula to obtain an ink. The pattern printed with this ink is red in vertical view and green in oblique viewing. The pattern has a pronounced golden-red luster under left-handed polarized light and a distinct golden yellow luster under right-handed polarized light. And the color under the two polarized lights is different from the interference color of the ink itself. Example 10
雕刻凹版油墨的制备： ' Preparation of engraved gravure ink: '
光干涉颜料 GOLD L 1400 (BASF公司） 25g ' Light interference pigment GOLD L 1400 (BASF) 25g '
液晶颜料 Maple (来自瓦克化学） 12g Liquid Crystal Paint Maple (from Wacker Chemical) 12 g
醇酸树脂连接料 19g Alkyd resin binder 19g
酚醛树脂连接料 26g Phenolic resin binder 26g
无机填充料 3g Inorganic filler 3g
蜡 5g Wax 5g
干燥剂 2g Desiccant 2g
表面活性剂 5g Surfactant 5g
高沸点溶剂 3g 按以上配方将各组分装入具有真空密封的高速搅拌器， 制得油墨。 使 用该油墨印刷的图案， 在垂直观察下为金黄色， 而在斜观察角则显示出棕色。 该图案在右旋偏振光观察下具有明显的金红色光泽。 High boiling point solvent 3g The ink was prepared by charging each component into a high-speed stirrer having a vacuum seal according to the above formulation. The pattern printed with the ink was golden yellow in vertical view and brown in oblique viewing angle. The pattern has a pronounced golden-red luster under the observation of right-handed polarized light.

Claims

权利要求书 Claim
1、 一种具有偏振效果的光学变色油墨， 主要包括多层干涉颜料、 液晶颜料、 连接料或树脂、 填充料及溶剂。 1. An optical color changing ink having a polarizing effect, mainly comprising a multilayer interference pigment, a liquid crystal pigment, a binder or a resin, a filler and a solvent.
2、 根据权利要求 1所述的一种具有偏振效果的光学变色油墨， 其特征在于: 当所述油墨为雕刻凹版油墨时， 其组成及配方如下- 多层干涉颜料 2%- 30%  2. An optical color changing ink having a polarizing effect according to claim 1, wherein: when the ink is engraved gravure ink, the composition and formulation thereof are as follows - multilayer interference pigment 2% - 30%
液晶颜料 2%- 30%  Liquid crystal pigment 2% - 30%
连接料 20-60%  Connecting material 20-60%
填充料 1-20%  Filling material 1-20%
蜡 0-5%  Wax 0-5%
表面活性剂 3-7%  Surfactant 3-7%
于燥剂 1-3%  Drying agent 1-3%
溶剂 1-10%  Solvent 1-10%
以上百分数均为重量百分数。  The above percentages are by weight.
3、 根据权利要求 1所述的一种具有偏振效果的光学变色油墨， 其特征在于 : 当所述油墨为丝网印刷油墨时， 其组成及配方如下： 3, according to one of claim 1 having a polarization effect optically variable ink according to claim wherein: when the ink is a screen printing ink, the composition and the following formula:
多层干涉颜料 2%-30%  Multilayer interference pigment 2%-30%
液晶颜料 · 2%- 30%  Liquid crystal pigment · 2% - 30%
树脂 10-60%  Resin 10-60%
溶剂 20-60%  Solvent 20-60%
填充料 0-30%  Filling material 0-30%
以上百分数均为重量百分数。  The above percentages are by weight.
4、 根据权利要求 1、 2或 3中任意一项权利要求所述的一种具有偏振效果的 光学变色油墨， 其特征在于： 所述干涉颜料是采用物理沉积法制备或采用化 学沉积法制备的一种或一种以上的颜料， 干涉颜料粒径为 2uni-80Uni。 4. An optical color changing ink having a polarizing effect according to any one of claims 1, 2 or 3, wherein: the interference pigment is prepared by physical deposition or by chemical deposition. One or more pigments having an interference pigment particle size of 2 uni-80 U ni.
5、 根据权利要求 1中权利要求所述的一种具有偏振效果的光学变色油墨， 其 特征在于: 所述液晶颜料为具有左旋偏光特性或右旋偏光特性， 结构为胆甾 醇液晶、 具有手性结构的向列或近晶型液晶中的一种或一种以上的片状高分 子材料。 5. The optical color changing ink having a polarizing effect according to claim 1, wherein: the liquid crystal pigment has a left-handed polarization characteristic or a right-handed polarization characteristic, and has a structure of cholesteric liquid crystal and has chirality. One or more sheet-like high scores in a structured nematic or smectic liquid crystal Sub-material.
6、根据权利要求 5中权利要求所述的一种具有偏振效果的光学变色油墨， 其 特征在于： 液晶颜料在垂直视角观察时反射光谱在 450nm-650nm之间， 液晶 颜料平均粒径为 2um- 80um。 6, as set forth in claim 5, wherein said optically variable ink claims having a polarization effect, wherein: a liquid crystal pigment at normal viewing angle observed in the reflectance spectrum between 450 n m-650nm, average particle size of the liquid crystal pigment 2um- 80um.
7、根据权利要求 1或 2任意一项权利要求所述的一种具有偏振效果的光学变 色油墨， 其特征在于： 所述连接料为醇酸树脂、 酚醛树脂、 聚酰胺树脂、 脲 醛树脂及聚合亚油中的一种或一种以上树脂与植物油或溶剂的物理混合或化 学反应产物。  The optical color changing ink having a polarizing effect according to any one of claims 1 to 2, wherein the connecting material is an alkyd resin, a phenol resin, a polyamide resin, a urea resin, and a polymerization. A physical or chemical reaction product of one or more resins in a linoleum with a vegetable oil or solvent.
8、 根据权利要求 1、 2或 3中任意一项权利要求所述的一种具有偏振效果的 光学变色油墨， 其特征在于： 填充料为碳酸钙、 二氧化硅、 滑石粉、 硅酸铝、 膨润土或硫酸钡中的一种或一种以上的混合物。  The optical color changing ink having a polarizing effect according to any one of claims 1, 2 or 3, wherein the filler is calcium carbonate, silica, talc, aluminum silicate, One or more mixtures of bentonite or barium sulfate.
9、 根据权利要求 2所述的一种具有偏振效果的光学变色油墨， 其特征在于： 所述蜡为聚乙烯蜡、 聚四氟乙烯蜡或氧化聚乙烯蜡中的一种或一种以上混合 物； 所述溶剂为矿油、 煤油或其他高沸点有机溶剂中的一种或一种以上混合 物。  9. The optical color changing ink having a polarizing effect according to claim 2, wherein: the wax is one or a mixture of polyethylene wax, polytetrafluoroethylene wax or oxidized polyethylene wax. The solvent is one or more mixtures of mineral oil, kerosene or other high boiling organic solvent.
10、根据权利要求 2所述的一种具有偏振效果的光学变色油墨， 其特征在于： 表面活性剂为阴离子表面活性剂或非离子型表面活性剂中的一种或一种以上 混合物。  An optical color changing ink having a polarizing effect according to claim 2, wherein the surfactant is one or a mixture of an anionic surfactant or a nonionic surfactant.
11、 根据权利要求 1或 3中任意一项权利要求所述的一种具有偏振效果的光 学变色油墨， 其特征在于： 所述树脂为纤维素类树脂、 丙烯酸树脂、 聚酰胺 树脂、 醛酮树脂或聚氨酯中的一种或一种以上的混合物。  The optical color changing ink having a polarizing effect according to any one of claims 1 to 3, wherein the resin is a cellulose resin, an acrylic resin, a polyamide resin, or an aldehyde ketone resin. Or a mixture of one or more of the polyurethanes.
12、根据权利要求 1、 2或 3中任意一项权利要求所述的一种具有偏振效果的 光学变色油墨， 其特征在于： 所述溶剂为乙二醇乙醚醋酸酯、 二乙二醇丁醚、 乙二醇甲醚、 高沸点烷烃溶剂、 乙酸丁酯、 丁酮、 乙酸乙酯、 异丙醇、 乙醇、 二甲苯、 甲苯、 乙酸异戊酯或环己酮中的一种或一种以上混合物。  The optical color changing ink having a polarizing effect according to any one of claims 1 to 2, wherein the solvent is ethylene glycol ethyl ether acetate or diethylene glycol butyl ether. One or more of ethylene glycol methyl ether, high-boiling alkane solvent, butyl acetate, butanone, ethyl acetate, isopropanol, ethanol, xylene, toluene, isoamyl acetate or cyclohexanone mixture.
13、 由权利要求 1一 12所述的一种具有偏振效应的光学变色油墨， 是干涉颜 料与液晶颜料、 连接料或树脂、 溶剂及油墨助剂按通用光学变色油墨的混合 方式制备而成。  13. An optical color-changing ink having a polarization effect according to claim 1 12, which is prepared by mixing a pigment and a liquid crystal pigment, a binder or a resin, a solvent and an ink additive according to a general optical color-changing ink.
PCT/CN2005/002022 2005-06-09 2005-11-25 Optically variable ink having polarization effect WO2006131034A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005100266307A CN100432164C (en) 2005-06-09 2005-06-09 Optical disclour printing ink with polarization effect
CN200510026630.7 2005-06-09

Publications (1)

Publication Number Publication Date
WO2006131034A1 true WO2006131034A1 (en) 2006-12-14

Family

ID=35352518

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/002022 WO2006131034A1 (en) 2005-06-09 2005-11-25 Optically variable ink having polarization effect

Country Status (2)

Country Link
CN (1) CN100432164C (en)
WO (1) WO2006131034A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101319108B (en) * 2007-06-07 2011-01-05 中国印钞造币总公司 Round-polarization novel printing ink and method of producing the same
AU2011100778B4 (en) * 2011-06-29 2011-10-13 Ccl Secure Pty Ltd Improvements in security devices incorporating colour shifting inks
CN102786840A (en) * 2012-08-20 2012-11-21 中钞油墨有限公司 Optically-variable ink for screen printing
CN103265844B (en) * 2013-06-04 2014-06-18 成都普瑞斯特新材料有限公司 White printing ink for printing shrink film labels and preparation method of white printing ink
CN106046930A (en) * 2016-07-28 2016-10-26 桐城市人和包装有限公司 Oil-based printing ink and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1148862A (en) * 1994-05-24 1997-04-30 奔驰公司 flop coatings and flop coating systems using liquid crystal optical interference pigments, mainly for car bodies
US6472455B1 (en) * 1998-10-08 2002-10-29 Sicpa Holding S.A. Ink composition comprising first and second optically variable pigments
US6656259B2 (en) * 2001-08-02 2003-12-02 Merck Patent Gesellschaft Mit Beschraenkter Haftung Multilayered interference pigments
CN1542059A (en) * 2003-03-10 2004-11-03 Ĭ��ר���ɷ����޹�˾ Interference pigments having a mass tone

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280681B (en) * 1993-08-06 1998-03-11 Merck Patent Gmbh Thermochromic media
US5629055A (en) * 1994-02-14 1997-05-13 Pulp And Paper Research Institute Of Canada Solidified liquid crystals of cellulose with optically variable properties
DE19638708A1 (en) * 1996-09-21 1998-04-16 Merck Patent Gmbh Multilayer interference pigments
DE19704506A1 (en) * 1997-02-06 1998-08-13 Basf Ag Chiral nematic polyester
DE19746067A1 (en) * 1997-10-17 1999-04-22 Merck Patent Gmbh Interference pigments based on flaky substrates used in paint, lacquer, printing ink, plastics, ceramics, glaze and cosmetics
DE10039377A1 (en) * 1999-09-03 2001-03-08 Merck Patent Gmbh Thermochromic liquid crystal medium, useful for the production of inks for the security marking of documents, comprises a liquid crystalline mixture and a chiral doping agent.
DE19947175A1 (en) * 1999-10-01 2001-04-05 Merck Patent Gmbh Homogeneous pigment preparation, used for making dry granulate, briquette, chip or pellet and in e.g. paint, (powder) lacquer, printing ink, plastics or car lacquers, contains styrene-modified maleate resin
JP4278813B2 (en) * 2000-02-10 2009-06-17 メルク株式会社 Novel surface-modified pearl pigment and method for producing the same
TWI236496B (en) * 2000-03-16 2005-07-21 Merck Patent Gmbh Broadband liquid crystal pigments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1148862A (en) * 1994-05-24 1997-04-30 奔驰公司 flop coatings and flop coating systems using liquid crystal optical interference pigments, mainly for car bodies
US6472455B1 (en) * 1998-10-08 2002-10-29 Sicpa Holding S.A. Ink composition comprising first and second optically variable pigments
US6656259B2 (en) * 2001-08-02 2003-12-02 Merck Patent Gesellschaft Mit Beschraenkter Haftung Multilayered interference pigments
CN1542059A (en) * 2003-03-10 2004-11-03 Ĭ��ר���ɷ����޹�˾ Interference pigments having a mass tone

Also Published As

Publication number Publication date
CN100432164C (en) 2008-11-12
CN1693386A (en) 2005-11-09

Similar Documents

Publication Publication Date Title
US11021002B2 (en) Near infrared absorbing fine particle dispersion liquid and method for producing the same, anti-counterfeit ink composition using near infrared absorbing fine particle dispersion liquid, and anti-counterfeit printed matter using near infrared absorbing fine particles
US11084949B2 (en) Near infrared absorbing fine particle dispersion liquid and method for producing the same, anti-counterfeit ink composition using near infrared absorbing fine particle dispersion liquid, and anti-counterfeit printed matter using near infrared absorbing fine particles
CN1993429B (en) pigment
WO2016121845A1 (en) Near-infrared ray absorbing microparticle dispersion solution and production method thereof
TW201700641A (en) Infrared-absorbent ink
CN107429097B (en) Near-infrared absorbing fine particle dispersion, method for producing same, forgery-preventing ink composition, and forgery-preventing printed matter
CN107227043A (en) Metal AZOpigments
CA2458687A1 (en) Process for making green pigment compositions useful for colour filters and lcd's
WO2008001762A1 (en) Aqueous pigment dispersion solution, ink for ink-jet recording, and process for production of aqueous pigment dispersion solution
WO2006131034A1 (en) Optically variable ink having polarization effect
CN102053424A (en) Alignment layer for planar alignment of a polymerizable liquid crystalline or mesogenic material
CN1702127A (en) Optical color variable pigment with near-infrared transmission feature and preparation process thereof
WO2009045000A1 (en) Ink composition for color filter and color filter
TW201518484A (en) Salt-free composite marking based on chiral liquid crystal precursors comprising chiral acrylate dopants
WO2022163499A1 (en) Infrared-absorbing ultraviolet-curable ink, and infrared-absorbing printed matter
JP4931167B2 (en) Colored reflective material, colored reflective filler and applications using these
JP2016155903A (en) Photochromic brilliant ink and printed matter of the same
KR102313716B1 (en) intaglio ink for improving printability and usability and method for preparing the same
CN1693388A (en) Optical disclour pigment with polarization effect, its preparation process and manufactured printing ink
WO2022004524A1 (en) Infrared ray-absorbing ultraviolet-ray curable ink and infrared ray-absorbing printed matter
TW201518485A (en) Composite marking based on chiral liquid crystal precursors and modifying resins

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05813864

Country of ref document: EP

Kind code of ref document: A1