German technical background VOK-9171 Wetting dispersant Improve luster and optical density replaces BYK-9171

German technical background  VOK®-Disper 9171 Solvent free Wetting Dispersant Additive for Waterborne Ink Jet Ink

Product Information

Chemical composition of acrylic acid block copolymer solution containing amino pigment affinity group

Typical Physicochemical Data The data given on this data page are only typical values, not technical indicators of the product.

Amine value: 28 mg KOH/g

Density (20 ℃): 1.05 g/ml

Non volatile matter: (10 minutes, 150 ℃): 40%

Solvent: water

Special precautions

When the temperature exceeds 70 ℃, the product will become turbid and the viscosity will increase. If necessary, cool it before mixing.

Application field

Inkjet ink

Product features and advantages

VOK ®- Disper 9171 

The pigment is deflocculated and stabilized by steric hindrance. The product is produced by controlled polymerization technology, and the molecular weight distribution is very narrow. The narrow molecular weight distribution makes the pigment dispersion have good stability.

VOK ®- The strong deflocculating effect of Disper 9171 can greatly improve the gloss, optical density, transparency and/or coverage, reduce the viscosity of the abrasive, and improve the long-term storage stability of pigment concentrate slurry and finished ink.

Recommended use

VOK ®- Disper 9171 is especially suitable for dispersing stable organic pigments and disperse dyes, which can effectively reduce the viscosity of abrasive and increase the pigment content in pigment concentrate slurry. Especially recommended for resin free grinding.

The recommended amount of additives (purchase form) is based on pigments:

Disperse dye: 20-120%

Inorganic pigment: 10-50%

Titanium dioxide: 2-10%

Organic pigment: 20-120%

Carbon black: 30-200%

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

Adding method and processing guidance Wetting and dispersing additives should usually be added to the abrasive, only in this way can it be fully effective.

Grinding can only be carried out in water (without resin, organic amine and cosolvent). Mix the auxiliary agent with water, and add the pigment only after the auxiliary agent is completely dispersed and uniform.