“premetallize”的英文意思_释义_用法

单词

premetallize

释义

preˈmetallize, v.
[pre- A. 1.]
trans. To convert (a dye) before use into a metal chelate form by treatment with a metal salt, usu. in order to improve fastness properties. Hence preˈmetallized ppl. a.
1948Kirk & Othmer Encycl. Chem. Technol. II. 252 The formation of the metallic complex can be accomplished as an after-treatment, or the dye can be premetallized and applied to the fiber in the form of its soluble alkali salt.1949Jrnl. Soc. Dyers & Colourists LXV. 490/2 Ultralan Orange RS—This is a premetallised dye giving bright oranges when applied from strongly acid dye-baths, under which conditions the most level dyeings are obtained.1963A. J. Hall Textile Sci. ii. 82 Nylon can also be dyed with wool and cotton dyes (notably the acid wool dyes, pre-metallised dyes and direct cotton dyes).1963Times 31 May 19/6 The use of premetallised dyes for wool has also increased..despite the poor trading conditions in the textile printing industry.

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