In-situ coupling color development method of meta-position aramid fiber and obtained color development aramid fiber

The invention discloses an in-situ coupling color development method of meta-aramid, which comprises the following steps: (1) pretreatment: soaking a meta-aramid fabric in dimethyl sulfoxide, then taking out, cleaning and drying; (2) color development: putting the fabric obtained in the step (1) into methanol, and adding a weakly alkaline aromatic primary amine diazonium salt solution for color development; and then taking out, cleaning and drying. The brown meta-position aramid fiber fabric can be obtained by adopting the color developing method. 本发明公开了一种间位芳纶的原位偶合显色方法，包括以下步骤：(1)前处理：将间位芳纶织物浸泡于二甲基亚砜中，而后取出清洗，烘干；(2)显色：将步骤(1)所得织物置于甲醇中，加入弱碱性芳伯胺重氮盐溶液进行显色；而后取出清洗，烘干。采用本发明显色方法可以获得棕色系间位芳纶织物。