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Pigment-based aqueous inks combine a powdered substance similar to chalk dust with the water carrier. Since the pigment sits on top of the paper instead of staining it, pigment inks scatter light and slightly more muted colors than dye-based inks. However, the dot size is only minimally larger than dye inks, and the final product will be waterproof. Pigment Green 7 inks are also stable in (resistant to) UV light.

Any substrate - fine art or photographic paper, canvas - must be treated with an ink-receptive coating before printing with aqueous ink.

Formulating aqueous pigment inks requires tailoring the ink properties to the jetting process with piezo print heads and controlling the drying of the ink; both are key elements for mastering image quality.

The jetting process requires low viscosity (about 2 to 10 mPa.s at jetting temperature, i.e., between room temperature and 35°C). It greatly limits the selection of ink compounds.

The addition of a binder can deliver an important contribution to the durability of the print, but its impact on jetting reliability needs to be limited. Many different binder chemistries can be used in water-based inkjet inks. At Agfa, we base our selection on the combination of adhesion to the substrate, durability of the print, and jetting performance. In some cases, no binder is needed.

Pigment Green 7 Manufacturer that contribute light-scattering properties to coatings are generally known as white or hiding pigments. They act by scattering all wavelengths of light, owing to their relatively high refractive index, so they are perceived as white by the human eye. They are known as hiding pigments because light scattering reduces the probability that light will penetrate through a pigmented film to the substrate. A paint film of sufficient thickness and concentration of light-scattering pigment is truly opaque, hiding the substrate. The whiteness and opacity contributed by this class of pigments make them among the most extensively used pigments for coatings.

The organic fluorescence pigment is also called solar fluorescence pigment. After absorbing visible light and ultraviolet light, it can change the ultraviolet fluorescence previously invisible to the human eye into visible light of a certain color. Its total reflection intensity is higher than that of ordinary colored pigments. Fluorescent pigments can be divided into fluorescent pigment and fluorescent resin pigment. Fluorescent pigments are widely used in safe passageways, safety doors, firefighting equipment, traffic signs, as well as eye-catching advertising, buildings, decorations and so on.

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