Abstract
The infrared absorbing inkjet ink is composed of infrared absorbing materials, resin, assistant agent and solvent that has a great influence on the main performance of the ink. Based on the consideration of environmental factors, five alcoholic solvents were chosen and prepared into ink samples respectively. The effect of different solvents on the properties of the ink was discussed. Then the ink sample was prepared by the most optimal proportion of blends with solvent through the principle of formulating of recipe, the printing sample was attained and tested. The experiments showed that the solvents had a great influence on the properties of the viscosity, infrared absorption strength, surface tension of infrared absorbing ink, which directly affected the ink-jet printing eligibility and security effect. The developed ink has good performance and security effect.
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