| 释义 |
Guignet's green|ˈgiːɲeɪz griːn|
[f. the name of C. E. Guignet (b. 1829), French chemist, who discovered and patented it in 1859.]
A green pigment, consisting chiefly or wholly of hydrated chromic oxide, which gives a bright, transparent, very fast colour and is used esp. in high-quality paints and printing inks; = viridian.
1862C. O'Neill Dict. Calico Printing 52/2 A pigment green, which is an oxide of chromium,..known as Guignets' [sic] green, is obtained by making an intimate mixture of about three parts of boracic acid with one part of bichromate. 1876Encycl. Brit. IV. 51/1 A very beautiful pigment, now much used in calico-printing, under the name of Guignet's green, is a borate of chromium. 1920F. A Mason tr. von Georgievics's Text-bk. Dye Chem. (ed. 2) 541 Frequently Guignet's Green itself is termed Permanent Green when used for chromolithography, bank-note printing, etc. though not in calico printing. 1967Introd. Paint Technol. (Oil & Colour Chemists' Assoc.) (ed. 2) v. 93 The hydrated oxide (Viridian or Guignet's Green) is bright but transparent. |