Glycol-free styrene-acrylic solid resin

Fields of Application: Printing Inks and Overprint Varnishes
Vehicle for water-based overprint varnishes and flexographic and gravure-printing inks
 
Performance and Characteristics:
Gloss improvement
Increase of transfer and resolubility
Improvement of block and heat resistance
Free of glycols and glycol ethers
 
Starting formulation: 
for a 30 % solution:
615.9 g  Water
0.1 g  Drewplus TS-4387 
300.0 g  Indurez SR 20
84.0 g Ammonia solution 25 %
----------- 1000.0 g
 
Viscosity: appr. 6000 mPa.s (Anton Paar RheolabQC; MS: CC27)
 
Add the Indurez SR 20 to water at room temperature. 
Stir to ensure complete wetting of the solid resin. 
Add the ammonia solution.
While stirring heat up to minimum 80°C.
Stir until the solid resin has completely dissolved. pH value should be at least 8.2.