Rosin modified phenolic resin is mainly used for offset printing ink. SEIKO PMC recently made a rosin modified phenolic resin to meet the increased printing speeds of the newer printers and at the same time allowed the use of lower quality paper to be used. We provide many resins that improve setting speed, pigment dispersive efficiency and ink / water balance for web-fed offset, sheet-fed offset and newspaper inks.
|Product name||Acid value||Melting point (℃)||Viscosity (dPas)*1||Heptane tolerance (ml/g)**2||Characteristics|
|OR-480||27 MAX||170-180||410-490||6-9||High viscosity|
|OR-490||21 MAX||151-157||225-275||13-17||Good water resistance,
|OR-534||20 MAX||155-165||30-70||10-14||Quickly drying,
Good water resistance
|OR-190||20 MAX||145-155||120-220||33-38||Good water resistance,
*1 Varnish for measurement resin: linseed-oil=35:65
Measured by a vertical falling ball method (25℃)
*2 Solution for measurement resin: toluene=35:65
Measured by heptane titration
These solid resins can be used in varnishes. We can provide many kinds of varnish product.