Ink
Ink (also known as printing ink) is mainly composed of colorant (dispersed phase), Varnish (continuous phase) and various supplementary materials. The main colorant is organic pigment, especially azo organic pigment. There are many ways to classify inks. Classification by version Lithographic printing inks, letterpress printing inks, gravure printing inks, flexo printing inks, orifice printing inks, digital printing inks, specialty printing inks, etc.
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