Squid Inkjets Blog: Pigmented Ink

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Pigmented Ink

The previous blogs have discussed carbon ink and iron gall ink. However, there are still various other types of ink; pigmented ink and dyes in ink. This blog will discuss specifically pigmented ink, while dyes in ink will be the topic for the next blog.

Pigmented inks have certain types of agents, which assure pigment adhesion to the surface. They also prevent mechanical abrasion removal. These agents are generally referred as resins or binding agents.

This type of ink is very beneficial when printing on paper since the pigment settles on the paper surface. This is really required as more ink on the surface makes less ink needed to create similar colour intensity. The ink’s main element is pigment, which contains different colours. Pigment size is significant for diffusing ability. Certain qualities such as saturation, hue, and brightness are inherent parts of ink. They vary depending on the type and source of the pigment.

Numerous vendors try to offer pigmented ink to combine the brightness of dye and the extreme light fastness of pigment. This type of ink can print in almost any paper except those with glossy surface. Pigmented ink is known to produce print with some mottles. It is caused by unequal absorption level of pigment and dye component. Another disadvantage of pigmented ink is it produces a big amount of metamerism, which is caused by uneven reflection and absorption of the two components.

The latest archival ink is composed from 100% pigment; therefore it is named pigment ink instead of pigmented. Unlike dye ink, pigment inks are not influenced by colour enhancement papers. Unfortunately, they are not preferable for glossy paper.

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