Common Dyes and Their Properties
This ready reference addresses the classification, properties, bonding, mode of manufacturing, and application areas of dye materials.
TABLE OF CONTENTS Common Dyes and Their Properties
Nomenclature of Dyes
There is no systematic nomenclature for naming dyes. Each dye has a trade name that the manufacturers provide. Usually, the shade of the dye is indicated by a letter, for example, Y for Yellow, G for Green, O for Orange, R for Red, or B for Blue.
The CI Number
To avoid confusion in naming dyes, a Color Index (CI) has been prepared by the Society of Dyers and Colorists in the UK and by the American Association of Textile Chemists and Colorists in the US. Using this system the different types of dyes are identified. Each individual chemical used as a dye is assigned a CI number containing specific, identifying, five-digit number. When specifying dyes for use in a staining method, the CI number is specified to avoid confusion in referring to a chemical.
The CI Name
The CI also assigns a specific name to each dye. The name is based on the dye's or the textile's mode of action and the base color, followed by a number. An example is the dye mordant blue 3, the CI name for chromoxane cyanine R (CI 43820). This CI name is, as a result, a specific identification of each dye.
Color Index International that consists of the Society of Dyers and Colorists and the American Association of Textile Chemists and Colorists, has also given CI names to each dye. The CI name consists of the category of the dye or pigment, type of the dye, general hue, and...
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