Optical brightening agent OBA-L
1. Characteristics
Optical brightening agent OBA-L is a kind of stilbene triazine derivates. It can stimulate the incident light to produce fluorescence and improve the whiteness and brightness of paper, fabric, coating and other materials. It has high stability, low consumption and easy to use. Therefore, it is widely used in many fields such as papermaking, textile, coating, detergent and etc.
2. Physical & Chemical Properties
Requirement | |
Appearance | Light yellow or amber viscous liquid |
Appearance | Amber Liquid |
pH value | 8.0-10.0 |
Viscosity(25℃,mPa•s) | ≤60 |
Ionicity | Weak Anionic |
4. Usage
In case of emergency, conduct compatibility test before use.
The product OBA-L should avoid adding it together or directly contact with cationic substances.it can be directly added into (thick) stock. Please On surface sizing, it can be directly added into starch. On coating, it can be directly added into paint, and it has good compatibility with PVA, CMC for better effect.
Dosage In stock: 0.1%-1.5% based on dry pulp； On surface sizing: 1g/L-20g/L (single side)；
On coating: 0.1%-1.0% based on dry weight of fillers.
5. Packing & Storage
l Polyethylene plastic drum, net weight 1000kg.
l The product should be kept sealed in a cool, dry and ventilated warehouse, and especially should be prevented from freezing and exposure. The storage period is 6 months.
