Selective decolorization of pigments within two and three pigmented inks for colored marking by a Q-switched laser
Source abstract
Abstract
Inks consisting of two and three pigments as well as an infrared absorber were printed onto plain paper and treated using a Q-switched Nd:yttrium–aluminum–garnet laser. It has been shown that the color of these inks can be altered through selective pigment decay: a red, green and blue ink decayed red first, then green, leaving a blue mark or a purple one, selectively. The process is related to the thermal decomposition temperature of the pigments used which is dependent upon the incident laser intensity.
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Research context
OpenAlex topics: Laser Material Processing Techniques · Solid State Laser Technologies · Cultural Heritage Materials Analysis
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Affiliations
Department of Mechanical, Aerospace and Manufacturing Engineering, Laser Processing Research Centre, University of Manchester Institute of Science and Technology (UMIST), P.O. Box 88, Manchester M60 1QD, United Kingdom
References (6)
Show source-provided references
1. Laser marking using organo-metallic films10.1016/0143-8166(95)00046-1 ↗
2. Decoding of invisible laser markings using infrared technology10.1016/S1350-4495(02)00137-8 ↗
3. Removal of the indigo color by laser beam-denim interaction10.1016/S0143-8166(00)00087-7 ↗
4. Laser ablation of multilayers of ink from a paper substrate for tactile printing10.1016/S0030-3992(00)00067-0 ↗
5. Multipass laser ablation of three coloured ink from a paper substrate10.1016/S0924-0136(01)00728-2 ↗
6. More light for art conservation