In the world of UV inkjet printing, the dispersant is the "heart" of the formulation. High-speed printheads require inks with extremely low viscosity, sub-micron particle size distribution, and flawless jetting stability. Tianjin Ruike Chemical (www.rk-chem.com) provides two high-performance hyperdispersants designed to meet these challenges, benchmarking against global industry standards.

1. RD-9775: The Versatile Powerhouse for High-Solid Systems

(Benchmarked against Lubrizol Solsperse 39000)

RD-9775 is a 99% active content polymer dispersing agent specifically engineered for high-solid solvent-based and UV-curing systems.

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  Exceptional Carbon Black Performance: It demonstrates an outstanding grinding effect for both high-surface and low-surface carbon black, effectively preventing re-agglomeration.

  
  

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  Significant Viscosity Reduction: By stabilizing pigment particles through steric hindrance, RD-9775 allows for maximum pigment loading while keeping the viscosity within the strict limits required by inkjet printheads.

  
  

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  Broad Compatibility: It is widely applicable in automotive, industrial, and plastic paints, showing excellent versatility across various UV-curable formulations.

  
  

2. RD-9290: The Hyperdispersant for Premium Color Development

(Benchmarked against TEGO Dispers 685)

For formulations requiring maximum transparency and vibrant color development, RD-9290 is the preferred choice.

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  Tailored for Radiation Curing: This polymer copolymer is optimized for UV offset, flexographic, and inkjet inks, especially in high-solid content formulations.

  
  

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  Excellent Pigment Wetting: RD-9290 excels in dispersing organic pigments and carbon black, ensuring a fine particle size distribution that enhances gloss and color power.

  
  

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  Stability in Grinding: It is particularly effective for resin-containing grinding systems, significantly reducing viscosity and maintaining stability during the intense milling process.

  
  

Technical Application Guide

Achieve Jetting Perfection:

At Ruike Chemical, we understand that every printhead requires a unique balance. Visit www.rk-chem.com to request full TDS/SDS or lab samples of RD-9775 and RD-9290 to optimize your next UV inkjet project.