In the complex landscape of industrial textile manufacturing, achieving consistent quality and visual appeal requires versatile chemical agents. NINGBO INNO PHARMCHEM CO.,LTD. proudly presents Optical Brightener 4BK (FBA113), a critical component designed to optimize fabric whiteness and brightness at various stages, from pre-treatment to post-processing.
Optical Brightener 4BK functions effectively as a textile pre-treatment brightener. Applied early in the manufacturing chain, it prepares fibers and fabrics for subsequent dyeing and finishing, laying the foundation for a brilliant white base. This initial application helps to neutralize any inherent yellowness, ensuring that the final product achieves maximum luminosity and color vibrancy, especially for white or pastel shades. Manufacturers can inquire about the bulk purchase price for this versatile solution from NINGBO INNO PHARMCHEM CO.,LTD.
Beyond pre-treatment, FBA113 is also an invaluable post-processing whitening agent. Once fabrics have undergone dyeing or other treatments, a final application of Optical Brightener 4BK enhances their visual appeal, correcting any dullness and imparting a fresh, crisp look. This dual functionality makes it an exceptionally cost-effective and efficient choice for textile factories aiming to streamline their operations while maintaining high-quality standards.
As a leading industrial textile chemical manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. ensures that Optical Brightener 4BK possesses robust stability against common processing conditions, including strong alkalis, acids, and peroxides. Its excellent solubility and dispersibility further guarantee uniform application and consistent results, crucial for large-scale industrial production. We are a trusted supplier of optical brightener 4BK for comprehensive textile applications.
The strategic use of Optical Brightener 4BK throughout the textile production lifecycle provides a significant competitive advantage. It helps manufacturers meet stringent quality demands for whiteness and brightness, improving product marketability. NINGBO INNO PHARMCHEM CO.,LTD. offers not just the product, but also the technical support to integrate this essential agent seamlessly into your existing processes. Contact us to buy this powerful industrial textile chemical and elevate the whiteness and quality of your fabrics from start to finish.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.