Round-polarization novel printing ink and method of producing the same
The invention discloses a circular-polarization changing color anti-fake ink not containing interference pigment and having light-variation effect and a preparation method thereof. The ink comprises compositions such as a liquid crystal material, a resin, a filler and a solvent and so on, wherein th...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
05.01.2011
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a circular-polarization changing color anti-fake ink not containing interference pigment and having light-variation effect and a preparation method thereof. The ink comprises compositions such as a liquid crystal material, a resin, a filler and a solvent and so on, wherein the liquid crystal material is made from a cholesteric liquid crystal material which comprises a laevorotary and/or dextrorotatory cholesteric liquid crystal material or a mixture or a polymer of the cholesteric liquid crystal material. A pattern printed by the ink shows a color under circularly polarized light completely different from a color under natural light or lamplight, and has the light effects of laevorotary polarizing light, dextrorotatory polarizing light or laevorotary-dextrorotatorypolarizing light and can also generate the effect of color variation along with the change of eye visual angle; therefore, the circular-polarization changing color anti-fake ink has the uniqueness ofanti-fake characteristic, |
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Bibliography: | Application Number: CN20071110482 |