Technology Photochromic ink Protection strategy Product authentication Type Overt feature System Security inks Medium Secondary packaging Authentication/Identificaton Authentication Traceability No Cost Price on request Required equipment Irradiation with light of a specific wavelength (e.g. UV light) Vertification level Pharmacist; User (with the adequate light excitation source) N.B. Description These inks change color when exposed to a specific light source, as with fluorescent inks, but in photochromic inks, the effect is longer lasting and the color reverts to the original hue only a few seconds or minutes after the light source is removed. Strengths Low cost; Can deter simple attempts at counterfeiting (such as color photocopying); Easily verifiable with a blacklight (if the ink used glow under ultraviolet); Limitations Not considered high security option; Easily reproduced; Require a light source with a specific wavelength; The color reversion is not as fast as fluorescent inks; Links:
Technology Photochromic ink
Protection strategy Product authentication
Type Overt feature
System Security inks
Medium Secondary packaging
Authentication/Identificaton Authentication
Traceability No
Cost Price on request
Required equipment Irradiation with light of a specific wavelength (e.g. UV light)
Vertification level Pharmacist; User (with the adequate light excitation source)
N.B.
Description These inks change color when exposed to a specific light source, as with fluorescent inks, but in photochromic inks, the effect is longer lasting and the color reverts to the original hue only a few seconds or minutes after the light source is removed.
Strengths Low cost; Can deter simple attempts at counterfeiting (such as color photocopying); Easily verifiable with a blacklight (if the ink used glow under ultraviolet);
Limitations Not considered high security option; Easily reproduced; Require a light source with a specific wavelength; The color reversion is not as fast as fluorescent inks;
Links:
Technology Photochromic ink
Protection strategy Product authentication
Type Overt feature
System Security inks
Medium Secondary packaging
Authentication/Identificaton Authentication
Traceability No
Cost Price on request
Required equipment Irradiation with light of a specific wavelength (e.g. UV light)
Vertification level Pharmacist; User (with the adequate light excitation source)
N.B.
| Description | These inks change color when exposed to a specific light source, as with fluorescent inks, but in photochromic inks, the effect is longer lasting and the color reverts to the original hue only a few seconds or minutes after the light source is removed. |
| Strengths | Low cost; Can deter simple attempts at counterfeiting (such as color photocopying); Easily verifiable with a blacklight (if the ink used glow under ultraviolet); |
| Limitations | Not considered high security option; Easily reproduced; Require a light source with a specific wavelength; The color reversion is not as fast as fluorescent inks; |
| Links: |