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Thermosetting system based lithographic ink a vegetable oil.
Thermosetting system based lithographic ink a vegetable oil.
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机译:基于热固性系统的平版印刷油墨是一种植物油。
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摘要
Rapid thermosetting, low VOC web offset lithographic inks are prepared in the instant invention from solid resin, drying oil alkyds, bodied drying oil, vegetable oil, fatty acids, multifunctional unsaturated polyester, reducing agents and transition metal salts of organic acids. The aqueous lithographic fountain solution contains hydroperoxides or peroxides which promote free radical polymerization of the ink in contact therewith. The metal salts of organic acids function as crosslinking agents in combination with excess carboxylic acid functionality of the ink. Optionally, the reducing agent and the organic hydroperoxide or peroxide may be interchanged.
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