Stabilization of pigments in ink

[Translate to Englisch:] Pigmente in Tinte stabilisieren — Stabilization of the ink

Since pigments are, by definition, insoluble in water, it is not individual molecules that are surrounded by water particles, but larger aggregates. The finer the pigments are ground, the smaller they are. Nevertheless, even the finest pigment particles sink to the bottom if you wait long enough. The water molecules have no way of "holding" the pigments, since they are chemically too different (water polar, pigment non-polar).

Wetting agents (surfactants) now have the property of combining polar and non-polar groups in one molecule. The head group is usually polar, and the tail group non-polar. If such a surfactant is dissolved in water, so-called mycells are formed. These are spherical structures in which the tails point inward and the heads outward. This allows the water to dock onto the heads. The non-polar "interior" then holds non-polar substances that are otherwise not soluble in water, e.g. our pigment particles. Through clever choice of surfactants, it is possible to keep the pigments in suspension for quite a long time. However, such an ink is sensitive to low temperatures, for example, because the mycells are destroyed in the cold.

Topics on pigmented ink

Octopus printer ink set compatible for Epson 604 ink cartridges, WorkForce 2950DWF 2930DWF

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Printer Ink Set for Canon GI 46, GI 56 ink tank

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Refill ink set compatible for HP 303 and HP 305 Ink Cartridges, DeskJet, DeskJet Plus, Envy, Envy Pro

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Octopus printer ink set compatible for Canon PG-560, CL-561 ink cartridges, Canon Pixma TS 5300, 7400

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Octopus sales display for presentation of 120 Alcohol Inks or 48 fountain pen inks

Use this sales display or shelf to showcase your artist colors on the sales floor or counter.

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Fill In, QuickFill printer cartridges for Epson 405 with chip resetter and printer ink

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