Fluorescent whitening agent HST (6-sulfonic acid)

Optical brightener HST (6-sulfonic acid) is a highly efficient chemical compound that is widely used in the paper industry to improve the brightness and whiteness of paper products. This brightener is compatible with the affinity of paper fibers and is ideal for in-house bleaching processes. Its water solubility and ease of use further enhance its usefulness.

Product uses of optical brightener HST (6-sulfonic acid):
1. Enhance the performance of paper fiber and viscose fiber
- The optical brightener HST (6-sulfonic acid) is widely used to increase the brightness of paper fibers.
- Its strong affinity to paper fibers ensures even distribution and consistent whitening effect.
- It is also effective in whitening viscose fibers commonly used in the textile industry.
2. Whitening printing paste removal
- This whitening agent is suitable for adding to whitening printing paste to enhance the visual appeal of printed matter.
- It ensures a vivid and bright appearance of the print without compromising on quality.
3. Fluorescent whitening of pulp
- The optical brightener HST (6-sulfonic acid) is very effective in optical whitening of pulp.
- It helps achieve higher whiteness, making the paper more visually appealing.
4. Fluorescent whitening during surface sizing process
- Use this brightener to obtain an additional optical brightening effect during surface sizing.
- It increases the overall brightness of the paper surface and improves paper quality.

Advantages of optical brightener HST (6-sulfonic acid):
1. Affinity and compatibility with paper fibers
- The optical brightener HST (6-sulfonic acid) is compatible with the affinity of paper fibers. This characteristic makes it very effective when bleaching internally, ensuring thorough and even whitening. Its strong adhesion to fibers can bring Long-lasting whitening effect.
2. Easy to use
- This whitening agent is water-soluble, which simplifies its application in various processes.
- Can be diluted directly with water and therefore easily integrated into different stages of paper production.
- Easy to use, high production efficiency and cost-effective.
3. Good alkali resistance
- The optical brightener HST (6-sulfonic acid) has good alkali resistance, which is advantageous under various production conditions.
- It remains stable in the presence of perborates and peroxides, ensuring consistent performance.
- This stability makes it a reliable choice for different applications in the paper industry.

The main features of optical brightener HST (6-sulfonic acid):
1. Compatible with paper fiber affinity
- The fluorescent whitening agent HST (6-sulfonic acid) has a strong affinity with paper fibers, so it can effectively perform internal bleaching. This characteristic ensures that it penetrates deeply and evenly, making the paper bright and beautiful. It also Helps improve the longevity of whitening effects.
2. Water solubility
- The water solubility of this whitener makes it easy to use in different processes, it can be effortlessly diluted and incorporated into all stages of paper production, a property that increases its usefulness and efficiency in the paper industry.
3. Alkali and oxidant stability
- The optical brightener HST (6-sulfonic acid) has good alkali resistance and oxidation resistance. This stability ensures its consistent performance under different production conditions.
- It remains effective in the presence of chemicals such as perborate and peroxide, making it a reliable option.