Water-based Ink in Screen Printing Have To Pay Attention To These Matters!

Water-based ink is referred to as ink, flexible version of water-based ink is also known as liquid ink, it is mainly made of water-soluble resin, organic pigments, solvents and related additives by complex grinding processing.
Water-based ink in screen printing should pay attention to the parameters of water-based ink, including viscosity, fluidity, thixotropy and plasticity, ink control indicators are mainly fineness, viscosity, pH value and drying speed, they play a decisive role in the application of ink.
Because the water-based ink is a pure water-based system, do not use the water-based ink and alcohol ink and solvent ink mixed with organic solvents in the ink, the use of humor to stir evenly and appropriate viscosity after pouring into the ink tank, pay attention to the control of ink pH value, generally master in 8.5 ~ 9.5.
In the printing process, due to the volatilization of water, the viscosity of water-based ink will increase and the pH value will decrease, so we should often observe the use of ink, found that ink viscosity increase or pH beyond the control range, should be adjusted in time with diluent and pH stabilizer, to ensure the stability of viscosity and pH value.