| 释义 |
after-chrome, a.|ˈɑːftəkrəʊm, æ-|
[f. after- 9 + chrome.]
Of, pertaining to, or designating a process of textile dyeing in which the material, after being dyed or printed, is treated with a chromium compound. Also as v.; so after-chroming vbl. n.
1905L. Cassella Dyeing of Wool 63 For shading the already afterchromed dyeings the same Anthracene Colours..are usually applied. Ibid. 139 After boiling..the material is then afterchromed in the usual way. Ibid., The usual quantity of bichrome need be used for afterchroming. 1922Encycl. Brit. XXX. 869/2 Colouring matters of this type are known in the trade as ‘after-chrome’ colours. 1946Nature 21 Dec. 920/2 Laboratory methods of dyeing after-chrome blacks. 1963A. J. Hall Textile Sci. iv. 184 In the second (after-chrome) method, the wool is first dyed with the chrome mordant dye and is afterwards treated with the bichromate. |