Ink is a homogeneous mixture of colorants (pigments, etc.), binders, and additives. Color, body bone (thickness, rheology, etc.) and drying performance are the three most important properties of the ink. The ink should have vivid, vivid colors, good performance and printability, and the drying effect is satisfactory.
1) Pigment. The pigment is a solid powdered substance having a certain color, which is insoluble in water, and also in oil and other binders. When a printing worker selects an ink, it first selects the color, and the quality of the pigment determines the quality of the ink to a large extent. Therefore, the hue of the pigment is required to be accurate, the concentration is high, and the dispersibility is good.
2) The link material. The effect of the binder is to mix powdery pigments and the like to form a fluid (paste or liquid) with a certain fluidity. The linking material may be various vegetable oils, animal oils, mineral oils, solvent and water, synthetic resins, etc., so the linking materials include oily linking materials, solvent type linking materials, resin type linking materials, and penetrations. Drying binders, thermosetting binders, photosensitive binders, reactive binders, and the like. The binder determines the rheology, viscosity, and printability of the ink.
3) Additives. Including fillers (can reduce the amount of pigments, reduce costs, but also adjust the viscosity, etc.), additives (desiccants, removers, defoamers, surfactants, thickeners, etc.)
Source: "Printing World"
1) Pigment. The pigment is a solid powdered substance having a certain color, which is insoluble in water, and also in oil and other binders. When a printing worker selects an ink, it first selects the color, and the quality of the pigment determines the quality of the ink to a large extent. Therefore, the hue of the pigment is required to be accurate, the concentration is high, and the dispersibility is good.
2) The link material. The effect of the binder is to mix powdery pigments and the like to form a fluid (paste or liquid) with a certain fluidity. The linking material may be various vegetable oils, animal oils, mineral oils, solvent and water, synthetic resins, etc., so the linking materials include oily linking materials, solvent type linking materials, resin type linking materials, and penetrations. Drying binders, thermosetting binders, photosensitive binders, reactive binders, and the like. The binder determines the rheology, viscosity, and printability of the ink.
3) Additives. Including fillers (can reduce the amount of pigments, reduce costs, but also adjust the viscosity, etc.), additives (desiccants, removers, defoamers, surfactants, thickeners, etc.)
Source: "Printing World"
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