DBH-1
This is a yellow powder which gives a blue-white shade. It is highly pure, and its particles are very fine. It is soluble in water and is resistant to hard water as well as acids. With a decomposition temperature of over 300 Celsius, it is used in the whitening and brightening of PVC products.
OB1-L
OB1
It is a heat-resistant and chemically stable optical brightener with a melting point exceeding 300 Celsius. It has good lightfastness and works well with other dyes to produce particularly bright surfaces and colours. It is mainly used in coatings and offset inks along with its usage for PVC products.
OB
This is a greenish-yellow powder with a melting point of approximately 200 Celsius. It is highly pure and has a blueish whitening effect. It is chemically stable and is fairly heat resistant. It is used in plastics, coatings, inks and also has other applications.
KCB
This is a yellowish-green powder. It is a fairly heat resistant optical brightener with a melting point exceeding 200 Celsius. Its lightfastness depends on the products it is applied to. It is used in different types of PVC plastics, EVA etcetera.