Azo dyes, defined by their characteristic azo group (–N=N–), represent one of the most important classes of synthetic dyes in modern textile chemistry. Their extensive π-conjugation systems render ...

Think about your favorite shirt. What color is it — and how did it become that color? The dye manufacturer tested different types of fabrics to see how the color would look on each. The manufacturer ...

Scientists have unlocked a way to dye polyester using 90% fewer chemicals and 40% less water. Fizzy water was the key to making polyester dye less harmful to the environment in the creation of a new ...

At a factory in Vietnam, workers load rolls of undyed polyester into a steel container connected to a storage tank that holds carbon dioxide. When pressure in the container is turned up, the carbon ...