Abstract
AbstractObjective: To investigate the influence of kaolin on the printability of water-based ink. Methods: Use kaolin to prepare diluent, adding different amount of diluent to compound three kinds of varnish, respectively marked as standard (0 g diluent),sample 1 (200 g diluent) and sample 2 (300 g diluent), then prepare these varnish into ink with five different types of colorants separately. Eventually, investigate their printability from the aspects of slip resistance, viscosity, pH value, bubbling, deposit and color rendering effect. Results: the addition of diluent to varnish can slightly reduce the anti-skid degree of water-based anti-skid ink, but does not affect the pH value of ink and its color effect. However, attention should be paid to its using after a long-term stasis for its viscosity will increase. Ink configurated as sample 1 will appear slight deposit phenomenon after being put in the oven for a period of time, the deposit can be re-dispersed to ink by given a full mix and stir and the ink can be used. But in sample 2 a large diluent content caused an obvious deposit phenomenon and might affect its printability. Conclusion: the water-based ink configurated as sample 1 can slightly improve the slip resistance of the ink and meet the printing requirements.KeywordsDiluentVarnishWater-based InkPrintability
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