metallized dye
Noun: A type of acid dye where the negatively charged colored component (anion) contains a metal atom that is bound in a stable, ring-like structure known as a chelate. This structure enhances the dye's properties, such as its lightfastness and affinity for certain fibers like wool, silk, and nylon.
Metallized dyes are used primarily in the textile industry for dyeing protein-based and polyamide fibers. * The deep, rich black on the wool fabric was achieved using a metallized dye. * Metallized dyes often provide superior wash-fastness compared to some other acid dyes.
- Pre-metallized Dye: A common commercial category where the metal complex is formed during the dye's manufacture, before application. These are typically easier to use.
- The dyer preferred using a pre-metallized dye for its consistent results.
- Metal-Complex Dye: A more general synonym often used interchangeably with "metallized dye."
- Acid Dye: The broader class of dyes to which metallized dyes belong. Not all acid dyes are metallized.
- Chrome Dye: A specific type of metallized dye where chromium is the metal used. Chrome dyes are a subset of metallized dyes.
- Metal-complex dye
- Pre-metallized dye (for the common commercial form)
The term specifically refers to the chemical structure of the dye anion. The key distinguishing feature is the presence of a chelated metal atom (commonly chromium, cobalt, or copper) within the dye molecule itself, which modifies its color and performance characteristics.
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acid dye in which the negative ion contains a chelated metal atom
