Special whitening agent AP-1 for paper coating

Performance Features:
1. Easy to use, it can be mixed with water in any proportion and is suitable for automated continuous addition and metering.
2. It exhibits good acid resistance and maintains excellent whitening effect even at lower pH values.
3. This product utilizes advanced nanofiltration technology, resulting in a low salt content and good storage stability at room temperature.
4. Compared with similar products, it exhibits excellent fastness to sunlight and resistance to acids and alkalis.
5. The product remains stable above 0℃, but may freeze below -3℃. However, it can be dissolved by heating without affecting the usage effect.

Scope of application:
1. Perform fluorescent whitening in the pulp.
2. Perform fluorescent whitening during surface sizing.
3. Perform fluorescent whitening during the coating process.

Usage:
1. It can be directly added to the slurry, with a conventional dosage of 0.05-1.2% (based on the absolute dry slurry).
2. When used together with commonly used substances such as starch, CMC, and PVA in surface sizing, it can achieve a good whitening effect. The conventional dosage is 0.5-10/L.
3. During the coating process, it can be added at any position, and better results can be achieved when used together with PVA, CMC, and starch. The conventional dosage is 0.1-1.4%L.