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What is "Heavy metal free dyes" - Definition & Explanation

Heavy metal free refers to dyes that do not require the use of heavy metals to achieve the fixation of colors. Toxic heavy metals, such as chrome, copper and zinc, which are all known carcinogens, are commonly used as fixers in dyes. And, although most heavy metals can be removed from the effluent through wastewater treatment, this often does not occur.

Some other terms

Some more terms:

Certain treatments to achieve a desired effect or performance, dry being those applied mechanically. Dry finishes are generally considered environmentally preferable and consumer friendly as they use...
A fabric of wool, also of rayon and silk. The name is derived from the French term eponge for "spongy". It is a very soft and sponge-like fabric in a variety of novelty effects with loose weave. ...
A yarn in which one type of fiber is twisted or wrapped around another fiber that serves as a core. Core yarns are often used to make stretch fabrics where the core is spandex or rubber, and the...
Silk, cotton, rayon, or synthetic fibers in a gauze or lino weave that is a very lightweight, open, sheer, or mesh fabric. Wears very well and launders very well. Typically has a swivel dot or clip...
A fabric made using a rib variation of the plain weave. The construction is characterized by having a slight ridge effect in one direction, usually the filling. Poplin used to be associated with...

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