Thixotropy agent organoclay

Thixotropy agent organoclay，Printing droplet dot spreading are ink manufacturers, faced with thixotropy problems manifested in the usual thixotropic index of every 0.2 lower, the press will be forced to add up to 15%.

This is all because of the traditional organic bentonite thickeners, high temperature and high shear under the loss of benefits.

Organic bentonite growth structure, the charge adsorption effect of silicates, coupled with the synergistic effect of organic modification of the long chain, so that the thixotropy of organic bentonite improved, from the test data, the traditional thickeners are generally in the range of 0.3 to 0.5 , bentonite TI value but in the range of 0.8 to 1.2.

Organic bentonite VS polyamide wax / pyrogenic silica actual combat comparison
Attacking the competitor discourse design:When you’re using organobentonite in inks, first you have to consider the type of solvent you’re using.
For example, in aromatic hydrocarbon solvents, we use quaternary amine modified CP 180.
For alcohol ester solvents, we use CP-mpc.
For European inks, it is necessary to have a high thixotropic and fast recovery organobentonite, whereas for screen inks it is necessary to have a medium thixotropic and high yield value organobentonite.
Pre-gel preparation method:
① solvent temperature control: 50 ± 5 ℃ (insert infrared thermometer schematic)
② shear rate requirements: ≥ 2500rpm (compare the dispersion effect of different equipment)
③ Cooking time: 24h in winter / 12h in summer (with temperature and humidity control table)
Warning case: direct dry powder added to the ink particles caused by SEM electron microscope picture