In the competitive textile industry, achieving superior brightness and a flawless white finish is paramount. For manufacturers working with polyester fibers, selecting the right optical brightener is a critical decision that directly impacts product appeal and marketability. This article delves into the specifics of Optical Brightener ER-I (CAS 13001-39-3), a highly effective fluorescent whitening agent, and why it's a preferred choice for polyester applications. We aim to guide purchasing managers and formulators in making informed decisions when they are looking to buy this essential chemical.

Optical Brightener ER-I, also known as FBA 199 or C.I. 199, is specifically engineered to enhance the whiteness and brightness of synthetic fibers, with a particular emphasis on polyester. Its mechanism involves absorbing ultraviolet (UV) light and re-emitting it in the blue spectrum. This process effectively masks any inherent yellowing or dullness in the fibers, making them appear brilliantly white. For textile manufacturers, this translates into higher quality fabrics that capture consumer attention.

When considering a supplier, it's essential to look for manufacturers who can guarantee purity and consistency. Our company, a prominent optical brightener supplier in China, offers Optical Brightener ER-I with a purity of ≥99% and a stable melting point between 229-231°C. These specifications are vital for achieving predictable and repeatable results in textile dyeing and finishing processes. Understanding these technical details helps procurement teams secure a reliable source for their manufacturing needs.

The application of Optical Brightener ER-I in textiles is typically straightforward. It can be applied in emulsion form during the dyeing process. Recommended dosages generally range from 0.02% to 0.08% by weight, though this can be adjusted based on the desired level of whiteness and the specific characteristics of the fabric. This level of control allows manufacturers to fine-tune the brightening effect to meet specific product requirements. We encourage clients to request our technical data sheets to optimize their usage.

Beyond its excellent whitening effect, Optical Brightener ER-I also boasts good fastness to sublimation. This means the brightening effect remains stable even when the fabric is exposed to heat during processing or subsequent use, such as ironing. This characteristic is a significant advantage for durable textiles. For businesses looking to purchase this chemical, partnering with a reputable manufacturer in China ensures access to a product that meets international quality standards.

For purchasing managers and R&D scientists seeking to improve their polyester products, sourcing Optical Brightener ER-I from a trusted supplier like NINGBO INNO PHARMCHEM CO.,LTD. is a strategic move. We provide competitive pricing for bulk orders and are committed to ensuring a stable supply chain. Whether you are looking to buy small quantities for R&D or large volumes for mass production, our team is ready to assist you with expert advice and prompt service. Contact us today to inquire about pricing and availability for your next production run.