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[1] [2] The term is usually used in the context of clothes. In general, clothing should be tested for colour fastness before using bleach or other cleaning products. [3] Lightfastness, wash fastness, and rub fastness are the main forms of colour fastness that are standardized. The light fastness of textile dye is categorized from one to eight ...
[1] [2] The American Association of Textile Chemists and Colorists pioneered the work on these test methods and together with the ASTM D13 committee. [3] Normally two identical dye samples are created. One is placed in the dark as the control and the other is placed in the equivalent of sunlight for a three-month period. A standard bluewool ...
In grey scale the lightfastness is rated between 1–5. 1 being very poor and 5 being excellent lightfastness. [1] [2] [10] On ASTM scale the lightfastness is rated between I-V. I is excellent lightfastness and it corresponds to ratings 7–8 on Blue Wool Scale. V is very poor lightfastness and it corresponds to Blue Wool scale rating 1. [10]
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. For other color lists, see Lists of colors. This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "List of colors" alphabetical ...
They require an acidic dye bath, often using sulfuric acid and sodium sulfate mixtures (pH2-4), [7] together with leveling agents such as ethoxylated fatty amines. Milling dyes: These dyes are high molecule weight, with the result that migrates slowly. Consequently, they exhibit wet fastness, which is useful for dyeing wool materials.
Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Fiber Color Codes Chart Fiber Number Color 1: Blue 2: Orange 3 ...
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[1] A dye is a colored substance that chemically bonds to the material to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. Dye is generally applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the fiber. [2]