The optical brightener KSN has a similar chemical structure to optical brightener OB-1, but it has a better whitening effect on polyester fibers and plastic products than optical brightener OB-1, and it has better compatibility with plastics than OB-1, and it is used in a small amount.It Can produce very good whitening effect, which is far from optical brightener OB-1.

The brightening effect of optical brightener KSN is very good, and it enjoys the reputation of the king of whitening in China, and is often used in high-end plastics that require high whiteness. 

The optical brightener KSN is a benzoxazole compound. It is an excellent upgrade product among many optical brighteners. It has a blue-violet color and excellent light resistance. It is suitable for all plastics, especially in synthetic fibers.  At the same time, it can also be used for whitening and brightening color materials in coatings, paints, inks and other industries. The optical brightener KSN has the characteristics of convenient application, minimum dosage and best effect.

Product Cate:Optical Brightening Agent For Plastic

Product Name:Optical Brightener KSN

Chemical Name:4.4-bis(5-methyl-2-benzoxoazol)-ethylene

CAS No.:5242-49-9

C.I. No.:368

Molecular Formula:C30H22N2O2 

Appearance: greenish yellow powder 

Melting process: 300~320°C 

Ash content:≤0.5% 

Purity:≥99% 

Volatile content:≤0.5% 

Fineness(300 mesh):100%

Performance and characteristics:

1. The dosage is small, the whitening strength is high, and a small amount can produce a very good whitening effect.

2. Wide application performance, widely used in whitening polyester and other chemical fibers and various plastics.

3. It has good compatibility with plastics, high temperature resistance and excellent light and weather resistance

Scope of application:

1. It is suitable for whitening polyester, polyamide, polyacrylonitrile and other fibers, silk fabrics and wool fabrics.

2. It is widely used in film, injection molding and extrusion molding materials, and is suitable for processing all plastics.

3. It is very suitable for whitening in any processing stage of synthetic high polymer, including the polymerization stage.

Instructions:

The fluorescent whitening agent KSN is equivalent to 0.01-0.05% of the weight of the plastic or polyester pellets, and it can be fully mixed with the materials before various plastic molding processing or polyester fiber drawing.

Recommended dosage:

Add 2-30g of KSN brightener for every 100kg of material.

1. Add 0.5～2g to transparent plastic.

2. The amount of polyester fiber added is 10-20g.