direct azo dye

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• azo dye — Chem. any of a large class of dyes containing one or more azo groups. [1880 85] * * * Any of a large class of synthetic organic compounds, dyes containing two nitrogen atoms joined by a double bond (see bonding, covalent bond) in the form ―N=N―… …   Universalium

• dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… …   Universalium

• Dye — For other uses, see Dye (disambiguation). Yarn drying after being dyed in the early American tradition, at Conner Prairie living history museum. A dye is a colored substance that has an affinity to the substrate to which it …   Wikipedia

• Direct Blue 1 — IUPAC name tetrasodium (6E) 4 amino 6 [[4 [4 [N′ (8 amino 1 oxo 5,7 disulfonato 2 naphthyliden …   Wikipedia

• direct dye — noun dye with a high affinity for cellulose fibers (cotton or rayon etc.) • Syn: ↑substantive dye • Hypernyms: ↑dye, ↑dyestuff * * * noun : a water soluble dye usually of the azo class that is used in alkaline or neutral solution especially for… …   Useful english dictionary

• congo dye — noun Usage: usually capitalized C : any of a group of direct azo dyes most of which are derivatives of benzidine see dye table I * * * Congo color or Congo dye, any one of a group of direct azo dyes, usually derived from benzidine …   Useful english dictionary

• naphthamine dye — ˈnaf]thəˌmēn , ÷ ˈnap], mə̇n noun Etymology: International Scientific Vocabulary naphth + amine : any of several direct azo dyes see dye table I (under Direct Yellow 9 and Direct Black 19) …   Useful english dictionary

• developed dye — noun : any of a group of direct azo dyes that after application to the fiber can be further diazotized and coupled on the fiber to form shades faster to washing called also diazo dye; compare azoic dye …   Useful english dictionary

• stilbene dye — noun : any of a class of usually yellow to orange direct cotton azo dyes derived from stilbene; also : any of various fluorescent brighteners derived from stilbene …   Useful english dictionary

• congo rubine — noun or congo rubin Usage: usually capitalized C : a direct azo dye used especially for dyeing cotton, wool, and silk bluish red see dye table I (under Direct Red 17) …   Useful english dictionary

• Zambesi — zamˈbēzē trademark used for a direct azo dye; see dye table I (under Direct Black 17 and 78) …   Useful english dictionary