Why Dyes and Pigments are Essential for Paper Coloring and Finishing
Most people have wondered how the sheets of paper acquire their beautiful colors or why certain sheets are glossy and vibrant, while others look so plain. The answer lies in the magic of dyes and pigments . These colorants are the heart of the paper industry, making sure that everything from packaging and books to decorative and specialty papers looks exactly how it’s supposed to. Let’s take a closer look at why they matter so much and how they make a difference. What Exactly are Dyes and Pigments? Dyes are like a liquid that seeps into the fibers of the paper. Because they are soluble, they spread evenly, creating bright, bold, and consistent colors. Imagine some highly colored pages of magazines or colored wrapping papers; those often use dyes. Examples of such dyes are acid dyes, direct dyes, and reactive dyes. Pigments , on the other hand, are tiny particles that coat the surface of the paper. They are not soluble, so they sit on top and create a layer of color. Pigments are idea...