Which one is better, water-based ink and oil-based ink when choosing printing, what are the advantages, disadvantages and differences? Let's discuss it from the aspects of composition, environmental protection, performance and cost.

According to the solvent composition, it is classified as follows: 1. Water-based ink (using water and water-soluble solvents as the main components to dissolve the color base); water-based ink is a uniform paste material composed of binders, pigments, additives and other materials. The binder provides the necessary transfer performance of the ink, and the pigment gives the ink its color. The binder of water-based ink is mainly divided into two types: water dilution type and water dispersion type. There are many types of resins used in water-dilutable resins, such as maleic acid resin, shellac, maleic acid resin modified shellac, urethane, water-soluble acrylic resin and water-based amino resin. The water-dispersed binder is obtained by polymerizing monomers emulsified in water.

Water-based ink and oil-based ink

B. Oil-based inks (using non-water-soluble solvents as the main component to dissolve the color base) There are dye inks and pigment inks in water-based inks (the pH value of such inks is generally neutral); oil-based inks also have dye inks and pigment inks ( The pH value of this type of ink is generally acidic. Water-based inks and oil-based inks cannot be mixed (water-based inks cannot use oil-based hardeners, for the same reason).

To distinguish from environmental protection;

The main difference between water-based inks and oil-based inks is the difference in solvents. Water-based inks use water (45%-50%) as the solvent, with extremely low VOC (volatile organic compound) content and minimal environmental pollution; oil-based inks use organic solvents (toluene) , Xylene, industrial alcohol, etc.) as the solvent. Toluene and xylene are important items for product environmental monitoring. Oil-based inks are less environmentally friendly than water-based inks in the production, use, and waste treatment processes.

Distinguish from purpose and usability;

Water-based inks are especially suitable for packaging and printing products with strict environmental protection requirements such as tobacco, alcohol, food, beverages, medicines, and children's toys. The oil-based ink is suitable for various fabrics such as 100% cotton, cotton/polyester blends, polyester, light and dark colored cloth, denim, etc. Now with the environmental upgrade of "oil-to-water" environmental protection, water-based inks are gradually used on fabrics and clothing leather (Sanqi International Chemical has a variety of water-based inks suitable for various clothing fabrics, TPU, PU, leather, handicrafts, etc.). Oil-based inks have better adhesion and firmness than water-based inks on some printing substrates, and need to be tested according to different products.

In terms of cost, the price of water-based inks is higher than that of oil-based inks, but the odor of water-based inks is low, the environmental protection cost of water-based inks is lower, and ink products only account for a small part of the cost of printed products, which requires users to calculate by themselves.

The above are the advantages, disadvantages and simple differences between water-based ink and oil-based ink. If you need a more detailed understanding of the difference between water-based ink and oil-based ink and how to choose, please contact: 15158365810 Mr. Hu