Achieving the desired level of whiteness and brightness in paper and textiles is a delicate balance, and the correct application of optical brighteners is key. NINGBO INNO PHARMCHEM CO.,LTD. provides Optical Brightener Agent BA-L, a product renowned for its efficacy, but optimizing its use hinges on understanding the proper optical brightener BA-L dosage for different applications.

In the paper industry, the integration of BA-L can occur at several stages, each requiring specific dosage guidelines. When adding it directly to the paper pulp, a typical dosage ranges from 0.3% to 0.9% based on the dry pulp weight or dry dope. This ensures that the whiteness is evenly distributed throughout the paper's mass. For surface sizing applications, the OBA is incorporated into the sizing solution. While specific percentages can vary based on the sizing agent used and the desired finish, it's generally applied in a manner that ensures sufficient concentration on the paper surface.

Similarly, in coating applications, the OBA is part of the coating formulation. The concentration here is adjusted to provide the ultimate surface brightness and visual appeal, complementing the base paper's properties. The goal in all paper applications is to leverage BA-L as a paper pulp brightening agent or surface enhancer to achieve superior visual quality without compromising paper strength or other critical properties.

For textile applications, particularly on cellulose fibers like cotton and linen, the dosage is typically calculated based on the weight of the dry fabric. A common recommendation is between 0.25% and 0.85%. This is applied within a dye bath with a bath ratio of 1:20 to 1:40, at temperatures usually between 60-100°C. This ensures effective penetration and uniform distribution of the textile whitening agent BA-L onto the fibers. As an anionic fluorescent whitening agent for textiles, its interaction with the fabric and other bath components is crucial for optimal performance.

It's important to note that these are general guidelines. The optimal dosage can be influenced by several factors, including the whiteness level of the raw material, the presence of other chemicals in the process, the water quality, and the specific machinery used. Conducting small-scale trials is highly recommended to determine the precise dosage that yields the best results for your particular manufacturing setup and desired product specifications.

NINGBO INNO PHARMCHEM CO.,LTD. provides robust products like Optical Brightener BA-L to enhance your products, and we are here to offer guidance on their effective application, ensuring you get the most value from our chemical solutions.