南非采购需求：分散染料、酸性染料、碱性染料、直接染料、还原染料、溶剂染料

I'm currently working with white PVA and I'm interested in altering its color to a light grey shade. Could you please provide details on the best additives or pigments I could use for this purpose? It's crucial that the resulting color maintains the original properties of the PVA, ensuring it remains effective for my application. Additionally, I'd like to understand if there are any specific guidelines or processes I should follow when mixing in these colorants. If you have any recommendations for suppliers or products that would work well together with PVA to achieve the desired light grey, please let me know. Looking forward to your insights on this matter!