German technical background VOK-9131 Wetting dispersant The additive can improve the wetting process of pigments replaces BYK-9131

German technical background VOK®- Disper 9131 Wetting Dispersant

High molecular weight wetting and dispersing agent for solvent ink-jet. Recommended for all pigments.

Product Information

Chemical composition

Structured copolymer solution containing pigment affinity group

Typical Physicochemical Data

The data given in this data are only typical values, not technical indicators of the product.

Amine value: 2 mg KOH/g

Density (20 ° C): 1.00 g/ml

Non volatile matter (10 min., 150 ° C): 40%

Solvent: propylene glycol methyl ether acetate/ethylene glycol butyl ether 1/1

Flash point: 42 ° C

application area 

Inkjet ink

Product features and advantages

High molecular weight wetting and dispersing agent for solvent ink-jet. The additive can improve the wetting process of the pigment. At the same time, because of its good steric stability to the pigment, it can also improve the appearance of the final ink-jet (color intensity, luster, haze, transparency). It can reduce the viscosity of pigment paste and final ink-jet and eliminate thixotropy, achieving long-term storage stability without viscosity change.

VOK®- Disper 9131 can also make all pigment particles have the same charge, so as to avoid flocculation caused by pigment particles with different charges. Because of its good flocculating effect, it can obtain very small pigment particle size and narrow particle size distribution, thus shortening the filtering time of ink-jet.

Recommended use

VOK®- The Disper 9131 is suitable for various types of solvent ink-jet and can stabilize most of the pigments used for ink-jet.

Recommended dosage

75-140% additives (purchased form) are based on organic pigments

120-180% additives (purchased form) are based on carbon black pigment

The above recommended dosage is for reference, and good dosage shall be determined through a series of tests.

Adding method and processing guidance

Wetting dispersants should normally be added to the abrasive in order to make them fully effective. Pre mix the resin and solvent components in the abrasive, and then slowly add the auxiliary agent in the state of stirring. Pigments can only be added after the auxiliaries are completely dispersed and uniform.