vat dyeing

The key of the process is the use of the plasma technique as a pretreatment of the PP fabrics before vat dyeing.

该工艺的关键是在还原染料染色前利用等离子技术对PP纤维进行预处理。

Aiming at the problems of colour fluctuation in cheese VAT dyeing, methods of controlling colour shade are investigated from the reduction of dyes, process of dyeing, oxidizing, soaping and drying.

针对还原染料筒子纱染色的色光波动问题，从染料还原、染色条件、氧化条件、皂煮条件、烘干条件等几个工艺因素方面研究了还原染料筒子纱染色的色光控制方法。

On the Basis of an experiment on the dyeing technology of solubilized vat dyes on chinlon, the light-degradation of the fibre is emphatically discussed.

在对增溶的还原染料在棉绒上进行染色实验的基础上，着重讨论了纤维的光降解性。