Optical Brightening Agent VBL

Product Overview

Optical Brightening Agent VBL stands as a premier solution in the realm of industrial whitening additives. Known chemically as Fluorescent Brightener 113, this specialized compound is engineered to absorb ultraviolet light and re-emit it as visible blue light, significantly enhancing the perceived whiteness and brightness of substrates. Our manufacturing process ensures high purity and consistent performance, making it an essential component for producers in the paper and textile industries seeking superior aesthetic quality.

As a stilbene derivative, this agent exhibits excellent affinity for cellulosic fibers. The anionic character ensures compatibility with most anionic and non-ionic systems, providing versatility across various formulation requirements. We prioritize strict quality control measures to guarantee that every batch meets international standards for stability and efficacy.

Technical Specifications

Performance and Features

The distinct advantage of Optical Brightening Agent VBL lies in its ease of application and robust performance under varying conditions. It is highly water-soluble, allowing for convenient dilution and integration into existing production lines without complex preprocessing. The product delivers a bright, bluish-white shade that effectively masks yellowing in aged or lower-grade raw materials.

• Excellent dispersion stability in aqueous solutions.
• High resistance to hard water and acidic conditions.
• Consistent color yield across different batches.
• Compatible with most common sizing agents and fillers.
• Cost-effective dosage rates for maximum economic efficiency.

Industrial Applications

This brightening agent is extensively utilized in the paper manufacturing sector. It can be directly added to the paper pulp during the production process. For optimal results, the recommended dosage ranges from 0.05 percent to 1.5 percent based on the weight of absolute dry paper pulp. Users should avoid mixing it directly with cationic chemicals to prevent precipitation or reduced efficacy.

In the textile industry, specifically for cotton processing, VBL serves as a critical whitening agent. The typical dosage is between 0.05 percent and 0.4 percent on weight of fabric. The process involves a liquor ratio of 1:10 to 1:30, with treatment temperatures maintained between 80 degrees Celsius and 100 degrees Celsius for thirty to sixty minutes. This ensures deep penetration and uniform whitening across the fiber structure.

Packaging and Storage

To maintain product integrity, Optical Brightening Agent VBL is packaged in secure 25kg bags. Custom packaging solutions are available upon request to accommodate specific logistical needs. The chemical exhibits excellent stability, retaining its performance characteristics for over two years when stored correctly. We recommend storage at room temperature in a dry, well-ventilated area away from direct sunlight and moisture. Proper handling ensures safety and maintains the high quality expected by global manufacturers.