Unbleached pulp is a type of cellulose fiber produced from wood or other plant materials without the use of bleaching agents. This process retains the natural color and properties of the fibers, resulting in a brownish hue. Unbleached pulp is often used in products like paper, cardboard, and packaging materials, where a natural appearance is desired. The production of unbleached pulp is considered more environmentally friendly compared to bleached alternatives, as it avoids harmful chemicals. It is also valued for its strength and durability, making it suitable for various applications in the paper industry and beyond.