NINGBO INNO PHARMCHEM CO.,LTD. is pleased to introduce Fluorescent Whitening Agent 368, also known as Optical Brightener KSN or C.I. 368. This high-performance chemical auxiliary is supplied as a yellow-green powder and is specifically designed to enhance the whiteness and brightness of a wide range of polymer materials.
With the molecular formula C29H20N2O2 and a molecular weight of 428.48, Brightener KSN boasts a high purity of typically ≥ 98%. Its melting point ranges from 285-335ºC, indicating its suitability for high-temperature processing applications.
A key application area for Optical Brightener KSN is in the plastics industry. It is widely used for whitening and brightening various types of plastics, including masterbatches and filling masterbatches. Notably, this brightener is particularly effective in high-temperature polymers such as nylon plastics and engineering plastics, where its excellent temperature resistance is a significant advantage.
Beyond plastics, Fluorescent Whitening Agent 368 is also well-suited for use in chemical fibers, particularly polyester. It offers a superior whitening effect on polyester fibers compared to some alternative brighteners.
The performance characteristics of Optical Brightener KSN make it a preferred choice for manufacturers seeking optimal results. It requires a very small dosage to achieve a high intensity whitening effect, contributing to cost-effectiveness and minimizing impact on material properties. Its good compatibility with various plastics ensures easy integration into production processes. Furthermore, the product exhibits excellent sunlight and weather resistance, contributing to the long-term stability and appearance of finished goods.
Typical reference dosages are remarkably low, often ranging from 0.002-0.03% for general plastics and even lower, 0.0005-0.002%, in transparent plastics. For polyester resin and fibers, a dosage of around 0.01-0.02% is usually sufficient.
NINGBO INNO PHARMCHEM CO.,LTD. ensures the stable quality of Fluorescent Whitening Agent 368, with high purity and consistency. The product is available from the manufacturer and supplier directly. For those looking to buy or purchase Optical Brightener KSN, inquiries regarding price and minimum order quantities can be directed to NINGBO INNO PHARMCHEM CO.,LTD. Packaging is typically in 25kg drums or bags, offering convenience for transport and storage.
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.