Gellner’s Ottopol 25 Series: Highlighting Alkali Soluble Acrylic Resins
The Ottopol 25 Series is a tried and proven acrylic resin pigment dispersion developed by Gellner Industrial. These products are a series of water-based acrylic resins derived from Alkali Soluble Acrylic Resins, and the series features three different formulation grades in order to suit the individual preferences of our customers.
A quick overview–what are alkali soluble resins?
Alkali-soluble resins (ASRs) are a type of copolymer containing multiple hydrophobic molecular groups and a large amount of carboxylic acid groups. Their chemical makeup has made them popular as stabilizers in the production of waterborne dispersed polymers.
The Ottopol 25 Series
Gellner’s Ottopol 25 Series comes in three variations, with Ottopol 25-50E being the concentrated version, and Ottopol 25-30 and Ottopol M-30 are the cut versions of 25-50E. All of the polymers are derived from the same monomer composition, so the dry resin is identical throughout the series, but the three variations give our customers options to satisfy specific applications.
These products were designed specifically as a grinding and let-down vehicle for water-based roto-gravure and flexographic printing inks. They can act as the sole binder or component of high gloss inks and overlay varnishes, which is especially useful for ink and coating production, which typically requires many different additives.
The Ottopol 25 Series offers many beneficial properties for inks and pigments. The polymer provides superior adhesion to a wide range of substrates, including PVC, Polyester, Polystyrene, and Coated Cellophane, and tends to adhere better to non-porous surfaces than other resins.
The series is also known for its contribution to high gloss inks, and sharp print results. It’s an excellent grinding vehicle for even the most difficult pigments, like Carbon black, and can meet higher industry standards when used as a dispersion stabilizer or a pigment wetter.
Ottopol 25 Series also imparts excellent flow and leveling to a variety of inks and coatings, especially gravure inks. These resins allow printers to attain an especially high quality of gravure print, a standard that previously could only be achieved with traditional solvent systems. The viscosity curve of this resin is relatively flat and shows a very low degree of thixotropy, resulting in superior printing quality.
Interested in Gellner’s products? Check out our website to browse our full range of water-based acrylic resins.
