optical brightener OB-1

optical brightener OB-1

This product optical brightener OB-1 is especially suitable for high temperature of all kinds of plastic and plastic products processing, because optical brightener OB-1 has very good heat resistance, light resistance, resistance to chlorine bleaching performance, so the whitening of polyester fiber and polyester whitening effect is ideal.

Product Details

optical brightener OB-1

other name: optical brightener 393, fluorescent brightener OB-1, fluorescent whitener OB-1

Character:

C.I.393 CAS: 1533-45-5

Appearance: Bright yellow crystals powder

Structure Type: 4,4'-Bis(2-benzoxazolyl) stilbene

Melting Point: 355~360℃

Solubility: optical brightener OB-1 Difficult to dissolve in water, but soluble in high boiling point organic solvents, such as benzene dichloride etc.

Other character: Because this product optical brightener OB-1 has high melting point and strong stability, so it has very good heat resistance, and resistance to chlorine bleaching performance particularly fine.


Specification:

Purity: ≥98.5%

Max UV absorption wavelength: 374nm

Max fluorescence wavelength: 434nm


Usage:

This product optical brightener OB-1 is especially suitable for high temperature of all kinds of plastic and plastic products processing, because has very good heat resistance, light resistance, resistance to chlorine bleaching performance, so the whitening of polyester fiber and polyester and cotton and other fiber blended fabric whitening effect is ideal, and can be used as a whitening polyester concentrate. Counter product: Whitex XNK, Uvitex ERT, Eastobrite OB-1


Direction for usage:

Making the optical brightener OB-1 thoroughly disperse in all those plastic and polyester particles, with the weight of 0.01~0.05% plastic weight, before all kinds of plastic products molding processing or before the polyester fiber laddering. Counter product: Uvitex OB-1


Packaging and storage:

Packing in 20KG, 25KG cardboard drum, stored in dry shade place.

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