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Fluorescent Whitening Agent FB-401 is a high-performance optical brightening agent, specifically developed for polyester and polyester-blend fabrics. With its blue-violet shade, this agent delivers good whiteness and brightness, enhancing the visual appeal of textiles. FB-401 is known for its good stability under challenging conditions, such as exposure to heat, chemicals, and varying temperatures.
Key Features
1. Enhanced Whiteness and Brightness: Fluorescent Whitening Agent FB-401 provides a high level of whiteness, imparting a blue-violet shade to the fabric. This not only makes the fabric appear brighter but also gives it a fresher and cleaner look.
2. Blue-Violet Shade: The blue-violet undertone helps in neutralizing yellowish tones in fabrics, resulting in a more vivid and radiant finish, making it particularly suitable for light-colored textiles that require an enhanced visual appearance.
3. Compatibility with Various Processes: FB-401 is designed to be effective across different dyeing processes, including both low and high-temperature treatments. It is compatible with overflow dyeing machines, jig dyeing machines, and continuous padding equipment, offering flexibility in application.
Benefits
1. Superior Fastness and Heat Stability: One of the key advantages of FB-401 is its exceptional fastness to light and heat. The brightening effect remains stable even at high temperatures, making it suitable for processes that involve middle to high temperatures.
2. Chemical Resistance: Fluorescent Whitening Agent FB-401 demonstrates good resistance to chemicals such as acids, alkalis, and hydrogen peroxide. These are commonly used in textile treatments, and FB-401 maintains its brightening power, even in these harsh environments.
3. High Efficiency with Low Dosage: FB-401 achieves high levels of whiteness and brightness with minimal product usage, making it an economical choice for textile manufacturers. Its low dosage requirements contribute to cost savings while maintaining good results.
Properties
1. Appearance: FB-401 appears as a light-blue dispersing liquid, which makes it easy to incorporate into textile treatments and dye baths.
2. Viscosity: The product has a viscosity of less than 100 mPa.s at 25°C, ensuring smooth and easy processing during application.
3. pH: The pH value of a 1% solution of FB-401 ranges between 6.0 and 8.0, allowing it to integrate seamlessly with other components in dye baths, without causing unwanted reactions or instability.
4. Ionicity: FB-401 is a non-ionic agent, making it compatible with other non-ionic, cationic, and anionic substances used in textile treatments.
5. Ultraviolet Absorption: FB-401 has ultraviolet absorption values in the range of 200-220 nm, enhancing its brightening effect by making the fabric more reflective and luminous under UV light.
6. Flash Point: The flash point of FB-401 is above 93°C, which adds to its safety and stability during use in textile production processes.
7. Density: The product has a density of 0.98-1.08 g/cm³ at 25°C, making it easy to measure and dilute for accurate and consistent application.
Applications
Fluorescent Whitening Agent FB-401 is designed for a wide range of textile applications, especially where polyester and polyester blends are used. Its versatility makes it suitable for various dyeing techniques, delivering consistent results across different fabrics and processes:
1. Polyester Fabrics: FB-401 is ideal for polyester-based fabrics, enhancing their brightness and whiteness while maintaining fabric strength and integrity throughout the processing stages.
2. Blended Fabrics: The product works well with polyester-cotton, polyester-linen, and other blended fabrics, ensuring a uniform brightening effect across different fiber compositions.
3. Dyeing Machines: FB-401 is compatible with overflow dyeing machines, jig dyeing machines, and continuous padding equipment, making it a versatile solution for textile production lines that use various types of dyeing machinery.
4. Temperature Adaptability: FB-401 performs effectively across a range of temperatures, from low to high, making it suitable for both gentle and more intense dyeing processes. This flexibility allows manufacturers to use the product in different stages of the production process.
