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。

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Now do your colour reduction as you usually would.

现在按你平常的习惯对颜色进行变化。

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It can avoid the particles gathering and colour blackening if the potassium is added in direct reduction for MoO 2 from secondary ammonium molybdate.

仲钼酸铵直接还原成二氧化钼时加钾，可克服产生颗粒聚集、颜色发黑等还原不良现象。

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