Lansperse UV51

Hyperdispersant - UV and LED Cured Systems

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Dispersing agents are used extensively in the coatings industry to help disperse solid particles into a liquid medium.

Dispersing agents perform by the anchoring of the surfactant onto the particle substrate and then acting as a barrier to stop re-agglomeration of the particles. This concept is often referred to as steric stabilisation. The new hyperdispersant has three functions, firstly a powerful amine anchoring group that latches onto the pigment substrate, secondly a tail section that floats within the solvent medium and thirdly a capping group that further enhances steric hindrance between pigment particles. Lansperse UV51 has been specifically designed to offer optimum performance in monomer systems commonly used in UV formulations.

Key Factors

  • Based on NEW technology

  • Capping groups designed for monomer systems

  • Powerful dispersing properties

  • Enhanced steric hindrance

  • Good colour strength

  • Low flocculation

  • VOC free

  • Fast particle size reduction

Formulation Guides

Formulations for a dispersion are based on 

  • Lansperse UV51 -  maximum addition level in blue

  • Some require a synergist  -  maximum levels shown in red

  • Pigment levels shown in the box

  • The rest is DPGDA

To obtain the correct addition level of dispersing agent and for pigments that require a synergist, a ladder approach starting from the maximum levels listed below then working down to the lowest addition level, around 2% should be used. It's important to note any rheology changes and also to assess any changes over time. The formulator requires a good stable dispersion that is stable over prolong storage. The colour strength is also an important factor especially when incorporated into a final ink formulation.

Orange 34
30%

6%

Red 57.1 30%

6%

Red 112
30%

6%

Violet 23
20%

4%

Green 7
20%

6%

Blue 15.3
20%

4%

Black 7
30%

3%

White 6
60%

5%

LANKEM

Enquires

+44 (0) 161 343 3355

commercial@lankem.co.uk

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