Water-based inks are eco-friendly inkjet consumables that use pure water as the primary solvent, featuring core advantages including low VOC (Volatile Organic Compound) emissions, no pungent odors, and environmental and human friendliness. These water-based inks are mainly divided into two major categories: water-based dye inks and water-based pigment inks. Water-based dye inks offer vibrant colors and a wide color gamut, making them suitable for high-saturation image output and widely used in advertising inkjet, photographic output, and cultural creativity. Water-based pigment inks provide excellent water resistance, lightfastness, and weather resistance, preserving colors for extended periods, making them suitable for indoor and outdoor applications requiring long-term display. Water-based inks are highly compatible with mainstream piezoelectric printheads and various desktop and industrial inkjet devices, making them an ideal choice for office printing, graphic output, home decoration, and green printing production scenarios. With increasingly stringent environmental regulations, the application scope of water-based inks continues to expand, becoming an important force in driving the green and sustainable development of the printing industry.