媒介染料是指一种需要进行媒染剂处理以达到染色要求的酸性染料（煤介染料一般用于羊毛织物的染色，但也可用于丝织物、皮革和聚酰胺纤维和铝片的染色。又称酸性媒介染料。
染料的溶解度、匀染性、上色率、固色率均好于媒介染料，颜色的批差小。
Solubility, levelness, uptake and fixation of reactive dyes were better than those of mordant dyes, and color differences between lots were smaller.
在羊绒散纤维染色中，对酸性媒介染料、弱酸性染料、毛用活性染料等应用低温染色工艺进行了研究。
In this paper, applying low-temperature dyeing technology in cashmere stock dyeing process for acid mordant dyes, acid milling dyes, and Lanasol dyes was studies.
PH值滑动剂应用于丝光羊毛和锦纶的酸性染料、活性染料、媒介染料或金属络合染料的染色，可使染浴的PH值从中性向酸性滑移。
PH value of sliding agent in mercerized wool and nylon acid dyes, reactive dyes, mordant dyes or metal complex dyes for dyeing, dye bath can aptitude acidic PH value from sliding.
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