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What is "Azo-free colorants" - Definition & Explanation

Azo-free colorants are dyes and pigments that are free of the nitrogen-based compounds aromatic amines, also referred to as "Azos". These compounds are toxic and banned in the EU due to their mutagenic, carcinogenic and often allergic properties. These dyes are not biodegradable.

Some other terms

Some more terms:

A type of loom on which small, geometric figures can be woven in as a regular pattern. Originally this type of loom needed a "dobby boy" who sat on the top of the loom and drew up warp threads to...
A continuous bundle of loosely assembled untwisted fibers. These are fibers that are drawn from the card by the drawing frames, and are eventually twisted into a yarn during the sliver knitting...
a manufactured fiber in which the fiber-form substance is cellulose acetate (FTC definition). Acetate fabrics are fast-drying, wrinkle and shrinkage resistant, crisp or soft in hand depending upon...
A minimally processed cotton fabric. Bits of cotton seed, stems and other plant components are in the yarn. These specks of brown give the fabric its natural and rustic appearance. The yarns are...
Medium weight, durable fabric made of cotton or cotton blend yarns. A tightly woven, strong fabric that is often finished with a water repellant coating. In men's wear most commonly used for trench...

Companies for Azo-free colorants:


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