after-chroming meaning in English

二次镀铬
重复镀铬

To solve the problem of adverse influence on the environment exerted by the residue dye liquid from traditional dyeing of wool with acid mordant dyes by after - chroming , and to lessen the pressure of chromium - containing waste water treatment , the dyeing method was modified by adopting two - bath dyeing technique in which the initial dyeing liquid and mordant dyeing liquid could be used in the recycled way , thus saving dyestuff and reducing the drainage of chromium - containing waste water
摘要为解决传统羊毛酸性媒介染料后媒法染色残液对环境的影响，减轻含铬废水处理压力，采用二浴循环染色技术对传统羊毛酸性媒介染料后媒浴染色法进行改进，改进后的染色新工艺可以做到初染液及媒染液循环使用，节约了染料，并降低了含铬废水的排放。