| Model: | green |
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| Brand: | liying |
| Origin: | Made In Korea |
| Category: | Chemicals / Coatings, Varnish & Painting |
| Label: | Nail thermochromic p , Colored fluorescent , UV fluorescent ink |
| Price: |
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| Min. Order: | 1 kg |
| Last Online:25 Dec, 2024 |
Long-wave UV fluorescent ink is a special ink widely used in the field of anti-counterfeiting. The following is its detailed introduction:
characteristic
• Fluorescence excitation characteristics: Under the irradiation of long-wave ultraviolet light with a wavelength of 365nm, it can emit visible light and show various bright fluorescent colors such as red, yellow, green, and blue.
• Invisibility vs. Visibility: There is invisibility and visibility. Invisible long-wave UV fluorescent ink is invisible under visible light, leaves no trace after printing, and has strong confidentiality; the tangible one has a certain color or appearance under visible light, and the fluorescent effect is more significant under ultraviolet light.
• Color change characteristics: divided into three types: colorless, colored, and discolored. Colorless long-wave UV fluorescent ink is colorless under ordinary light and displays fluorescent color under ultraviolet light; the colored one makes the original color more vivid and bright under ultraviolet light; the discolored one can change from one color to another under ultraviolet light. .
application
• Currency and bills: used for printing banknotes, checks, invoices, etc., such as invisible fluorescent patterns on RMB, specific fluorescent marks can be seen under ultraviolet light for anti-counterfeiting.
• Documents and cards: When producing ID cards, credit cards, passports and other documents, anti-counterfeiting marks with long-wave UV fluorescent ink can be added to increase the difficulty of counterfeiting.
• Product packaging and labeling: The packaging and labeling of high-value commodities such as cigarettes, wine, medicines, and cosmetics are often used. For example, invisible fluorescent trademarks are printed on cigarette boxes and displayed under ultraviolet light to facilitate consumers to identify authenticity.
Precautions for use
• Storage conditions: It should be stored in a sealed, dry and dark place, away from direct sunlight to prevent the ink performance from being affected.
• Printing environment: It is slightly irritating to the skin and respiratory tract. The environment should be well ventilated during printing operations.
• Printing material selection: It is recommended to use a series of printing papers that do not contain fluorescent whitening agents, which can improve the color change difference.
• Equipment cleaning: Use a new ink roller and a new printing plate before use, or clean the old ink roller and printing plate thoroughly to avoid colored ink affecting the invisible effect of colorless fluorescent ink.
