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Lightfastness is a property of a colourant such as dye or pigment that describes its resistance to fading when exposed to light. [1] [2] [3] Dyes and pigments are used for example for dyeing of fabrics, plastics or other materials and manufacturing paints or printing inks.
Remember: Anything with deep blue, black, red, brown or dark gray dyes is considered a dark, whereas garments in pastel shades, cream, beige and light gray should be in your whites pile.
Basic dye 11050 azo 2869-83-2: Juglone: Oil red BS Black walnut Natural brown 7 75500 ... Light green Basic blue 20 42585 triarylmethane 82-94-0: Methyl orange:
In natural dyeing, there are "fast" dye compounds (those that have the necessary molecular structure to form stable chemical bonds with mordants and fibres, and so provide good resistance to fading when washed, exposed to light, or subjected to normal rubbing/abrasion; these are found throughout the historic record), and there are "fugitive ...
Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green (Cr 2 O 3). Chromium pigments. Chrome green (PG17): anhydrous chromium(III) oxide (Cr 2 O 3). Viridian (PG18): hydrated chromium(III) oxide Cr 2 O 3 • xH 2 O. Cobalt pigments. Cobalt green: also known as Rinman's green or zinc green (CoZnO 2 ...
Lightfastness is a characteristic of a colourant, such as dye or pigment, which denotes its ability to resist fading when subjected to light exposure. [7] Grey scales for assessing the grades of colour fastness Colour fastness test report with grading for demonstration purpose