Optical brightener KCB, a key component in the textile and paper industries, plays a crucial role in enhancing the brightness and whiteness of products. As global demand for high-quality materials rises, understanding KCB’s properties and applications becomes essential for manufacturers and consumers alike. This guide delves into the significance of KCB in China, exploring its production, usage, and regulatory landscape.

Readers can expect to gain comprehensive insights into the chemical structure of KCB, its mechanisms of action, and its impact on product quality. Additionally, the guide will cover market trends, environmental considerations, and safety regulations surrounding KCB usage. By the end, readers will be equipped with the knowledge to make informed decisions regarding optical brighteners in their respective industries.

A Comprehensive Guide to Optical Brightener KCB in China

Optical brighteners are essential additives used in various industries to enhance the brightness and whiteness of products. One such brightener is Optical Brightener KCB, widely utilized in synthetic fibers and plastics. This guide delves into the technical features, types, and applications of Optical Brightener KCB, focusing on its significance in the Chinese market.

Technical Features of Optical Brightener KCB

Optical Brightener KCB is known for its excellent performance in brightening synthetic materials. Below is a comparison table highlighting its key technical features:

Feature	Details
Chemical Name	1,4-bis(benziazolyl-2-yl)naphthalene
Molecular Formula	C24H14N2O2
Molecular Weight	362.11
CAS Number	5089-22-5
Appearance	Yellowish-green powder
Melting Point	210-212°C
Purity	≥99%
Maximum UV Absorption	370 nm
Solubility	Poorly soluble in water
Recommended Dosage	0.005%-0.05% (weight ratio)

These features make Optical Brightener KCB a preferred choice for manufacturers looking to enhance the visual appeal of their products.

Types of Optical Brighteners

Optical brighteners can be categorized based on their chemical structure and application. Below is a comparison table of different types of optical brighteners, including KCB:

Type	Chemical Structure	Applications
Optical Brightener KCB	1,4-bis(benziazolyl-2-yl)naphthalene	Synthetic fibers, plastics, EVA
Optical Brightener OB-1	2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene	Detergents, textiles
Optical Brightener FP-127	2,2′-[(1,4-phenylene)bis(4,1-phenylene)]bis(1-benzoxazole)	PVC, coatings
Optical Brightener KSN	4,4′-bis(benzoxazolyl)stilbene	Paper, textiles

Each type of optical brightener has unique properties that make it suitable for specific applications, ensuring that manufacturers can select the right product for their needs.

Applications of Optical Brightener KCB

Optical Brightener KCB is primarily used in the following applications:

Synthetic Fibers: It enhances the brightness of polyester and nylon fibers, making them more appealing to consumers.
Plastics: KCB is widely used in plastics, especially in the production of EVA (ethylene-vinyl acetate) foams, which are common in footwear and other consumer products.
Coatings and Paints: It improves the whiteness and brightness of coatings, ensuring a vibrant finish.
Rubber and Foam Products: KCB is effective in brightening rubber and foam materials, enhancing their visual appeal.

Companies like Shanghai Deborn Co., Ltd. and Hubei Hongxin Chemical Co., Ltd. are leading suppliers of Optical Brightener KCB in China, providing high-quality products to various industries.

Market Overview

The demand for Optical Brightener KCB in China is driven by the growing plastics and textiles industries. As manufacturers seek to improve product aesthetics, the use of optical brighteners has become increasingly common. Companies such as Raytop Chemical and Shandong Grand Chemical Co., Ltd. are at the forefront of this market, offering a range of optical brighteners tailored to meet industry needs.

Conclusion

Optical Brightener KCB is a vital additive in the manufacturing of synthetic fibers and plastics, providing enhanced brightness and visual appeal. With its excellent technical features and diverse applications, KCB is a preferred choice for many manufacturers in China. As the demand for high-quality products continues to rise, the role of optical brighteners will only become more significant.

FAQs

1. What is Optical Brightener KCB used for?
Optical Brightener KCB is primarily used to enhance the brightness of synthetic fibers, plastics, coatings, and rubber products.

2. What are the key features of Optical Brightener KCB?
Key features include a molecular weight of 362.11, a melting point of 210-212°C, and a purity of ≥99%.

3. How is Optical Brightener KCB applied in manufacturing?
It is typically added to materials at a dosage of 0.005%-0.05% by weight to achieve the desired brightening effect.

4. Where can I purchase Optical Brightener KCB in China?
You can purchase Optical Brightener KCB from suppliers like Shanghai Deborn Co., Ltd. and Hubei Hongxin Chemical Co., Ltd..

5. Are there different types of optical brighteners?
Yes, there are various types, including KCB, OB-1, FP-127, and KSN, each with specific applications and chemical structures.