An ecofriendly printing strategy was developed for meta-aramid using supercritical CO₂ as treatment medium. With 40% sodium carboxymethyl cellulose and 60% guar gum as original paste, violet and yellow hue were obtained for the meta-aramid fabric. After supercritical CO₂ treatment, 40% printing permeability with basic violet 16% and 60% printing permeability of basic yellow 40 were reached. Moreover, the fluctuation of stiffness, the air permeability and the breaking strength of the printed meta-aramid can meet on the wearable requirement. Compared with the water-based printed aramid, washing and rubbing color fastness rated above 4 were obtained at 160 °C for basic violet 16 and at 180 °C for basic yellow 40. In addition, the printed samples presented two-photo fluorescence, and the fluorescence emission uniformly distributed throughout the entire fabric surface, which demonstrates that the printed meta-aramid can be utilized as warning materials.

_{开发了一种使用超临界 CO 2}作为处理介质的间位芳纶环保印刷策略。以40%的羧甲基纤维素钠和60%的瓜尔豆胶为原浆，得到间位芳纶织物的紫罗兰色和黄色色相。_{超临界CO 2}后处理后，碱性紫 16% 的印花渗透率为 40%，碱性黄色 40 的印花渗透率为 60%。此外，印刷间位芳纶的刚度波动、透气性和断裂强度均能满足穿着要求。与水性印花芳纶相比，碱性紫16在160℃和碱性黄40在180℃时均获得4级以上的耐洗和耐摩擦色牢度。此外，印花样品呈现双光荧光，并且荧光发射均匀分布在整个织物表面，表明打印的间位芳纶可用作警示材料。