BC-4BK兰光

Usage: (refer to formulas)

Take dip dyeing as an example:

4BK: 0.2－0.75%(o.w.f)

Anhydrous sodium sulphate solution 10%: 5－6% (weight of bath solution)

Adjust PH with sodium carbonate: 7－9

Bath ratio: 1∶10－20

Process flow:

Process flow: add 4BK and additive to water in accordance with the formula, fully stir to make 4BK dissolve, then add fabric, increase temperature to 80℃, dye for 20-30min→washing→softening→drying (80℃) finished product.

Appearance: yellowish powder

Solubleness: Soluble in water

Colored light: Blue light

Ionicity: negative ion

PH applicable scope：7-10

50kg cardboard bucket (lined with plastic bag) packaging.

It shall be used up in short period once the container is opened.

The shelf life is 8-12 months at room temperature.