EBF Low-Temperature High Sunlight Polyester Fluorescent Whitening Agent is a high-performance optical brightener designed specifically for use in the textile dyeing industry. This product is formulated to enhance the brightness of polyester and polyester blends, particularly under low-temperature and high-sunlight conditions. Its good properties make it a valuable choice for achieving bright, white fabrics with good lightfastness.
Product Applications
1. Polyester Fabric Whitening:
- Pure Polyester: Enhances the whiteness and brightness of 100% polyester fabrics, ensuring vibrant and long-lasting results even under challenging environmental conditions.
- Polyester Blends: Suitable for improving the brightness of polyester-cotton blends and other mixed fabrics.
2. Low-Temperature Dyeing Processes:
- Effective at Lower Temperatures: Ideal for processes conducted at temperatures around 95°C, making it suitable for low-temperature dyeing operations.
3. High Sunlight Exposure:
- Sunlight Resistance: Provides good brightness retention even under prolonged exposure to sunlight, ensuring that the fabric remains vibrant and bright.
Product Advantages
1. High Whitening Efficiency:
- Effective at Low Concentrations: Enhances the whiteness and brightness of 100% polyester fabrics, ensuring vibrant and long-lasting results even under challenging environmental conditions.
- Enhanced Brightness: Provides a high level of whiteness that significantly improves the visual appeal of the fabric.
2. good Lightfastness:
- Sunlight Resistance: Achieves a lightfastness rating of 6-7, ensuring that the brightening effect persists even after prolonged exposure to sunlight.
- Stable Performance: Maintains effectiveness over time, offering reliable performance in various environmental conditions.
3. Chemical Stability:
- Resistant to Acid and Alkali: Withstands exposure to acidic and alkaline conditions, maintaining its whitening performance throughout the dyeing process.
- Chlorine Bleach Resistance: Effective in environments where chlorine bleach is used, preserving the brightness and integrity of the fabric.
Product Features
1. Physical Appearance:
- Form: Appears as a milky-white, uniformly dispersed liquid, which is easy to handle and incorporate into various dyeing processes.
2. Performance Characteristics:
- Low-Temperature Whitening: Exhibits strong adsorption and whitening performance even at temperatures as low as 95°C, making it suitable for low-temperature applications.
- Good Oxygen Bleaching Resistance: Suitable for use in combination with oxygen bleaching agents, allowing for effective whitening in processes involving oxygen bleaching.
3. Application Versatility:
- Suitable for Multiple Methods: Can be used in both padding and immersion dyeing processes, providing flexibility in textile processing. This versatility ensures that **EBF Low-Temperature High Sunlight Polyester Fluorescent Whitening Agent** meets diverse needs, enhancing efficiency and effectiveness in textile operations.
Usage Instructions
1. Padding Method:
- Recommended Dosage: Use 0.5-4 grams per liter of solution.
- Process: Apply using a two-bath, two-pad process with a pick-up rate of 70%. Follow with pre-drying at 100% and curing at 170-190°C for 30-40 seconds.
2. Immersion Method:
- Recommended Dosage: Use 0.2-0.5% (O.W.F) of EBF Low-Temperature High Sunlight Polyester Fluorescent Whitening Agent.
- Application Conditions: Employ a bath ratio of 1:10-20, with a pH of 5-10 (a weakly acidic bath is preferable). Process at 95-100°C for 30-60 minutes, followed by thorough washing, drying, and setting.
By following these usage instructions, users can achieve good whitening and brightness results in polyester and polyester blends, enhancing the overall quality and appearance of the fabric.