Ink is a liquid or paste that contains pigments or dyes, used for writing, drawing, and printing. It has been an essential tool for communication and artistic expression throughout history, evolving from natural substances like soot and plant extracts to modern synthetic formulations. Different types of ink serve various purposes, from fountain pen ink to printer ink, each designed for specific applications. The composition of ink typically includes a solvent, colorant, and additives to enhance performance. Ink is not only vital for traditional writing but also plays a crucial role in printing technology, enabling the reproduction of text and images on various surfaces. Its versatility makes it a fundamental component in both art and industry.