Item No :
Printing Coating and Ink Acrylic Copolymer EmulsionApplication :
Suitable for various wood /industrial coating and inkSpecial Feature :
Solvent-free, Excellent adhesion gloss and matte, anti-abrasion, anti-tackProduct Description
Runshine produce high-performance water based acrylic emulsion is specifically engineered as the primary binder for screen, flexographic and gravure printing inks and over-print varnishes (OPV). The polymer is produced by emulsion polymerisation of styrene, (meth)acrylic esters and functional monomers, resulting in translucent, blue-tone milky liquids with a particle size of 0.10 – 0.30 µm. Water Based Acrylic Polymer product is free of APEO, formaldehyde and meets low-VOC regulatory limits, making it the preferred waterborne acrylic resin for eco-compliant printing operations.
Acrylic copolymer emulsions for printing are water-based colloidal systems synthesized through emulsion polymerization of acrylic monomers (e.g., methyl methacrylate, butyl acrylate, acrylic acid). Their molecular architecture is tailored to deliver:
Core-Shell Morphology: A hard acrylic polymer core (high Tg monomers like styrene) provides scratch resistance, while a soft shell (low Tg monomers like 2-EHA) ensures substrate adhesion and film flexibility.
Functional Monomers: Incorporation of acrylic acid(carboxyl groups) enhances pigment dispersion stability and crosslinking potential, while N-methylol acrylamideenables self-crosslinking at ambient temperatures.
Surfactant Engineering: Hybrid anionic/non-ionic surfactants (e.g., SDS + Tergitol™) stabilize particles and ensure compatibility with printing formulations.
Key Features • Fast drying: touch-dry in <30 s at 80 °C, full cure in <2 min • Outstanding pigment wetting and colour development for high-definition graphics • Waterborne Acrylic Emulsion with excellent adhesion to paper, board, BOPP, PET, PE, EVA, cotton, nylon and polyester fabrics • High gloss (>90 GU @ 60°) and optical clarity for OPV applications • Water Based Acrylic Resin with superior heat-seal and anti-blocking performance for flexible packaging inks • Water, rub and block resistance exceed 100 dry/50 wet cycles on Prüfbau tester • Compatible with popular acrylic resins, urethane-acrylic hybrids, wax dispersions and cross-linkers
Acrylic copolymer emulsions represent the technological cornerstone of sustainable printing, combining molecular design precision with application-specific performance. Their capacity to balance optical excellence, functional robustness (chemical/mechanical resistance), and ecological compliance positions them as indispensable solutions for the evolving print industry. Continued innovation in crosslinking chemistry, bio-sourcing, and nano-modification will further elevate their role in high-value digital, packaging, and industrial printing markets.
Technical Data
Apprearance | Milky white or Transparent Liquid |
Solid Content(%) | 30-65% |
pH(25C°) | 7.0 - 9.0 |
Viscosity(25C°,Mpa.s) | <1000 |
Tg(C°) | from -25 to 105 |
Main Feature
Application
Storage&Remarks
Waterborne Acryilc Emulsion Binder is stable when stored at 20°C for 6 months after delivery date. The recommended temperature range is 5~30 oC. Freezing or storage at higher temperature than 30°C, can affect the viscosity or the average particle size and finally lead to a sedimentation or coagulation. A contamination with bacteria, fungi or algae can damage the product irreversible
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