Technical Specs of Optical Brightener ER-Ⅱ
Appearance: Yellowish powder
Shade: Fluorescent white to blue
Purity: ≥99%
Moisture: ≤0.5 %
Melting Point: 184-186℃
Ionic Type: non-ionic
Properties of Optical Brightener ER-Ⅱ
Optical Brightener ER-Ⅱ is with strong fluorescence, high whiteness, good thermal stability. It does not decompose at a high temperature. Brightener ER-Ⅱ is also other properties, such as fast adsorption speed, low color temperature. good levelness, good low-temperature color ability, etc.. Optical Brightener ER-Ⅱ can meet different requirements of color and light, and are relatively stable for reducing agent, oxidant, hypochlorite compounds.
Compared with Brightener ER-Ⅰ , it has the following strengths:
- Faster adsorption rate
- Lower luminescent temperature
- Better whiteness ability
Applications of Optical Brightener ER-Ⅱ
Optical Brightener ER-Ⅱ is applicable to the whitening treatment of polyester and its blended fabrics and acetate fibers. It is not only suitable for exhaustion dyeing but also suitable for pad dyeing process. Brightener ER-Ⅱ is also suitable for the whitening of chemical fiber plastics.
Packaging and Storage
Optical Brightener ER-Ⅱ is packed 25kg per fiber drum lined with plastic bag, stored in cool and dry place without direct sunlight. Shelf life is at least 2 years.
