Milling with pure PF powder. Water – insoluble, can be diluted with any multiple of water. Excellent resistance with hard water, acid and alkali. Can withstand 160℃ baking. Excellent washing fastness, sunlight fastness and sublimation fastness.
Other Name:
Fluorescent Brightener DT,Fluorescent Brightening Agent DT, Optical Brightening Agent DT,Fluorescent Whitening Agent DT,OBA DT
Application
- Pad-dyeing hot-melt method
- Rate of use: 0-30g/L
- Process: two-bath two-pad (pick -up rate 70% )→pre-baking (100℃)→setting (180-190℃, 20-30s)
Note: Scouring is required before dyeing to remove alkali residue.
High-temperature exhaust dyeing method
- Rate of use: 1-3% ( q.w.f); bath ratio: 1:10-30;
- Dyeing temperature: 80-130℃, 30-45min.
- PH: 5-10
Technical Specifications
- C.I. No.: Fluorescent brightener 135
- Physical Form: light yellow dispersed liquid
- PHYSICAL PROPERTY
- Purity(%):min 99
- Melting Point(℃):187-189
- Volatile conten:≤0.50%
- Ash content:≤0.10%
Directions for use and dosage:
When used for pad-dyeing polyester-cotton fabric,the most suitable dosage is 25-30g/l.
