How to identify the quality of disperse dye 2023-06-30
Disclosed testing: Accurately collect 1g of dye, add 100ml of water at 30 ° C, stir with glass rods, drop the suspension of dye with 4-5 drops on the filter paper with a straw to observe its natural seepage ring, good diffuserity, good diffuser, good diffuser, and good diffuser. The larger its area.
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