Solvent-based ink is a type of ink that uses organic solvents as its primary carrier. This ink is known for its durability and resistance to water and fading, making it suitable for outdoor applications and various surfaces, including plastic, metal, and vinyl. It is commonly used in signage, packaging, and graphic printing. The composition of solvent-based ink typically includes pigments or dyes, solvents, and additives. While it offers excellent adhesion and vibrant colors, it can emit volatile organic compounds (VOCs), which may require proper ventilation during use. This makes it important to follow safety guidelines when working with solvent-based inks.