The invention of synthetic dyes Natural dyes represented the most common way to color textiles until the 19 th century, when scientific progress showed that color was intrinsically related to the ...

The FDA approved three new natural food color additives — galdieria extract, butterfly pea flower extract, and calcium phosphate — to replace synthetic petroleum-based dyes. This move follows ...

The agency will also fast-track the review of some natural alternatives to synthetic food dyes, such as butterfly pea flower extract, while authorizing four new natural color additives in the next ...

The synthetic material has a similarly layered structure, but with the addition of a little voltage the space between the layers swells or shrinks, allowing for fine-tuned control of what color of ...