Optical Brightening Agent BBU

Optical Brightening Agent BBU

Main composition:
Stilbene bistriazine derivative

Technical Index :
Appearance: slight yellowish power
Strength: 48 ± 2( against standard product)
Moisture: =5%
Fineness(80 mesh residue): = 5%

Properties and Features:
 Better solubility than VBL in water
 Anionic type, acid endurable, can be used in one bath of anionic and nonionic surfactant.
 Un-compatible with copper, iron ion, cationic dyestuff and surfactant.

Application field:
 Whitening agent for cotton and it's blends.
 Whitening agent for white pattern in discharge printing of cellulose fabric
 Whitening agent for light colored cellulose fiber

Application Process:
 Exhaustion process
BBU: 0.05-0.5%(o.w.f.), bath ratio: 1:10-30, dyeing temperature:40°C-100°C
Na₂SO₄: 0-10g/L, running for 20-40mins, baking, curing.
 Padding process
BBU: 0.5-2.5g/L, Ph: 3.0-9.0 Running speed: 30-40m/min

Package & Storage:
Packed in cardboard drum net 20kgs, Stored under dry and cool condition without light.