Green to purple
9 month ago
Anti-Forgery Optical Variable Pigments
【Introduction】
Anti-forgery optical variable pigments is also called optical color-changing pigments or angular color-changing powder that change color depending on the angle. They appear as colored powder and are suitable for making various inks, coatings and plastic products. Its anti-forgery effect is that when viewed from the front and side under white light, it will show two or several different colors. It has strong light change characteristics, large color difference changes, and obvious features. Its color angle effect cannot be used by any high-definition scanner or color scanner. Copiers and other equipment can copy, and the anti-forgery reliability is extremely strong.
Optically variable pigments are designated by many countries in the world for the most stringent and difficult anti-forgery of currencies and securities. Some well-known domestic manufacturers have also used them for the anti-forgery of tobacco, alcohol, pharmaceuticals, cosmetics, and beverage packaging and printing labels. .It can also be called photochromic powder
Our anti-forgery optically variable pigment varieties include:
|
Color type |
Color changing effect |
Remark |
|
Red to other colors |
Red turns green, purple turns green, brown turns green, red turns gold |
1. Can be printed directly on a white background; if printed on a black background, the effect will be best 2. The higher the addition amount, the more obvious the discoloration effect; different substrates will have different discoloration effects. 3. Pigment particle sizes vary in thickness, and flexographic printing is somewhat inappropriate. |
|
Green to other colors |
Green turns to purple, green turns to blue, green turns to purple, blue-green turns to purple-red, yellow-green turns to blue. |
|
|
Purple to other colors |
Purple to brown, blue to purple to red |
|
|
Blue to other colors |
Blue turns purple, blue turns purple, blue turns purple |
|
|
Gold changes to other colors |
Gold turns red, gold turns green, silver gray turns green |
|
|
Colorless to colored |
No change to red, no change t o blue, no change to green, no change to purple, no change to gold, no change to brown. |
Print directly on white substrate or transparent substrate, with high addition amount |
【Usage and dosage】
Anti-forgery optical variable Pigments can be added to the ink coating to be dispersed. No grinding is required and can be prepared immediately. When the viscosity of the ink coating is low, pay attention to layering and preventing settling. Different types of ink coatings require different amounts of addition; generally, the thicker the ink layer, the lower the amount of addition, and the range of the amount of addition is generally 8%--20%.
【Packaging specifications】
1KG/bag, 5KG/bag
【Storage and shelf life】
Store it away from light as much as possible, away from fire sources and tinder. The shelf life is three years in the unopened state. After the shelf life, it can still be used after passing the test.
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Main Product:
Ultra-violet fluorescent ink,
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Optical color-changing ink,
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Solar discoloration ink ,
Polarized ink
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