1.Product Details

Fluorescent Brightener 393, Fluorescent whitening agent OB-1, 2,2’-(4,4’-diphenylethyl) dibenzoxazole, CAS NO.1533-45-5, molecular formula C28H18N2O2, bright green or bright yellow crystalline powder, insoluble in water, odorless, the stable maximum absorption wavelength is 374 nm, and the fluorescence emission wavelength is 434 nm.Optical Brightener OB-1 has the advantages of excellent whitening effect, excellent thermal stability, less addition, etc. . It is used for polyester fiber whitening. At present, it is widely used to whiten plastic products and recycled plastic products, such as recycled polyester staple fiber, recycled PVC, and also ABS, PS, HIPS, PC, PP, PE, Eva and rigid PVC.

2.Application

(1) apply to polyester fiber, nylon fiber, polypropylene fiber and other chemical fiber whitening.

(2) suitable for whitening and brightening of polypropylene plastic, ABS, Eva, polystyrene, polycarbonate, etc. .

(3) suitable for the addition of polyester and nylon in conventional polymerization.

3.Usage

Reference usage:

(1) polyvinyl chloride:

Whitening: 0.01-0.06% (10g-60g/100kg)

Transparent: 0.0001-0.001% (0.1 g-1g/100kg)

Polystyrene (PS) :

Whitening: 0.01-0.05% (10g-50g/100kg)

Transparent: 0.0001-0.001% (0.1 g-1g/100kg)

3) polyvinyl chloride:

Whitening: 10g-50g/100kg

Transparent: 0.1 g-1g/100kg

4.Packaging

25kg cardboard drum, lined with plastic bags or according to customer requirements packaging.