effect pigment-特效颜料-特效油墨-变色颜料-color changeing pigment...

来自 : 新浪博客 发布时间：2021-03-25

About the effect pigment .Which can changecolor when in different condition .so many kinds,and most of them can used in screen printing . for SecurityPrinting and other applications. if you have interests,please read carefully .1,CLCPigments：(胆甾液晶颜料)CLC PIGMENTThe Cholesteric liquidcrystal (CLC) pigments are made up of CLC films rather CLCpolymers. The polymers are typically cross linked materials whichhave their molecules \"locked\" during the cholesteric phase. Nowthis enables the unique and brilliant optical properties of aliquid crystal to be exploited to the hilt in a solid pigment. Eachof the flake in the pigment is a piece of microfilm in a plateletform. It has dimensions of around 5 micron in thickness.Cholesteric liquid crystal or CLC polymer film is kind of naturallyreflective polarizer. If the center wavelength is set in a way, tobe within the visible spectra, then it is possible to create colortravel effects through a circular polarized reflection.
CLC pigments are increasingly applied as a deterrence forcounterfeit in banknotes, securing documents, and in authenticationprocesses to protect brand and products., very popular applicationin security and machine read applications.
also the effect pigment have the followingMirrorink(镜面油墨):MIRROR INKMirrorink is for silkscreen printing on the reverse side of all sorts ofperfectly smooth and transparent plastic or glass materials. It iswidely used in decorating industrial products.Optical variableink（光学变色油墨）: Optical variable ink is themost complicated intervention-type anti-forgery ink. The printingproducts using this ink has colorful metal luster in which colorlump shows a pair of colors, red-green, green-blue andgolden-silver, for example. Seen from the front or lateral sideunder sunlight, the ink glows two different colors varying with theviewing angle, characterized by intense optical variation and sharpcolor changes, whose color angular effect can’t be duplicated byhigh resolution scanner, color copying machine and other devices,and printing features can\'t be emulated by any other printing inksand printing types.Fragrance printingink（香味油墨）:The fragrance printing inkmay make the outward appearance colorless or each kind of color,the river character effect is good, at present had 30 kind ofcommonly used flavors, including strawberry, rose, grape, peach,sandalwood, camphor, juniper, lemon, vanilla, apple, jasmine,aspic, orange, peppermint and so on.Inkjet printer ink invisiblesecurity（喷码机隐形防伪墨水）:Invisible ink inkjet printer inks are UV fluorescence in the UV(200 ~ 400nm) irradiation, which could give visible light (400 ~800nm), showing the red, yellow, green, and blue fluorescence.Inkjet printing method to use because it is non-contact printingmethods, it can be directly in a variety of shapes, differentmaterials on the print logo, and because inkjet printer inkmanufacturing process complicated, demanding, therefore, with theuse of other printing as compared to the use of inkjet printerprint logo can play better security results.Magnetic ink（磁性油墨）:Patterns and logos printedwith magnetic ink containing magnetic substance can be checked bymagnetic detector, and printed passwords can be read out byinformation decoder and recognized through rubbing effect ofautomatic processing device. black and whitecolor .screen,offset .Can used for defending a falseprintingLaser ink（镭射油墨）：Laser ink is intended for perfectly smoothglass or plastic materials which, after printing, should be coveredwith a layer of transparent film. It shows nearly all the colors ofa rainbow and is widely used in decorating industrial products,particularly in printing on the very panel of some electronicproducts. It’s for silkscreen method only.

Press sensitiveink（压敏变色油墨）：Rub a function inthe pressure under, can appear the printing ink of color.Joinspecial chemistry to try or change color material and make into inthe printing ink.Use this kind of printing ink printing of thereare color or invisible diagram text, when article or tool which beto use hard quality rub, press to press, then the occurrence ischemical of the pressure color change or the tiny capsule breakdyestuff to show to leak and appear a color.(red, blue, green,purple, Huang etc.)Can request the choice shows according to thecustomer of the color also designs secretmarking.

Solar discolorationink(photochromic pigment)（感光粉，感光变色，日光激发变色油墨）：color change when it is exposed in the sunlight or UV light ,itcan used in textile,plastic, painting .forscreenprinting ,coating .

Ultra-violet fluorescentink（紫外荧光油墨）: Originally colorless presents visible light(400-800nm) in the sunlight or under the long wave ultraviolet rayillumination, after the evacuation photosource can return tooriginal state into the colorless printing ink, the color haspurplish red, blue, is yellow.Infrared excitation ink（红外激发油墨）: Infraredexcitation ink is a printing ink giving off visible, bright anddazzling light (red, green and blue) when exposed to infrared light(940-1060nm). With the features of high technology content,difficulty in copying and high anti-forgery capability, it can beapplied in anti-forgery printing widely, especially in RMB notesand gasoline vouchers.
Temperature sensitive ink（温变粉，感温粉）: color changewith the different temperature.

(1).Irreversible temperature sensitiveink (2).Reversible temperature sensitive ink
Soaking discoloration ink（感湿油墨，遇水消色油墨，水性油墨）:is divided into reversible discoloration ink, irreversiblediscoloration ink and irreversible pervasion ink.
1. The color of reversible discoloration ink disappears whensubjected to water and would restore to the original color when thewater has evaporated, the available color is white-transparency.It’s supposed to work with 350~420-point silk screen for creating athicker layer of ink.
2. The color of irreversible discoloration ink changes fromcolored to colorless when subjected to water and wouldn’t restoreto the original color any more. The available colors includesblack-colorless, red-colorless, green-colorless and blue-colorless.It’s supposed to work with 350~420-point silk screen for creating athinner layer of ink.
3. The colors of irreversible pervasion ink include red, yellow,blue, and green. It is for silkscreen only.

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