4BK-L Dark blue purple liquid Fluorescent Brightener
4BK-L Dark blue purple liquid Fluorescent Brightener
Product features:1. Physical form: 4BK-L is available in liquid form and is easy to handle and use during textile processing.2. Appearance: The whitening agent is in the form of a deep purple-blue liquid, which can visually show its efficacy and role in fabric whitening.3. Viscosity: 4BK-L has a viscosity of less than 100 mPa.s at 25°C, ensuring smooth mixing and use in a variety of production systems.4. Ionic properties: The brightener is anionic, which enhances its compatibility with other textile auxiliaries and chemicals commonly used in textile processing.5. Flash point: 4BK-L has a flash point above 93°C and can be safely handled and stored under standard industrial conditions.6. Density: The density of 4BK-L is between 1.12 and 1.22 g/cm³ at 25°C, which contributes to its effective solubility and performance during applications.7. UV absorption: With a UV absorption range of 120-130 nanometers, 4BK-L effectively absorbs UV rays and reflects bright white light, thereby increasing the brightness of treated textiles.
