The white polyester staple fiber is made of recycled materials, which looks yellow and unsightly. Try to add the  Whitening Agent Optical Brightener OB-1 393 for polyester fiber, which is a dye that uses optical complementary color to whiten the material. The  Whitening Agent Optical Brightener OB-1 393 appearance is bright yellow-green powder, which can emit blue light. The product has high fineness, high temperature resistance, suitable for high temperature production with low dosage.

1.Whitening Agent Optical Brightener OB-1 393 Product description:

The main feature of the Whitening Agent Optical Brightener OB-1 393 is its high melting point, which can reach 360 degrees Celsius, which is a good choice for the production of high temperature products. The Whitening Agent Optical Brightener OB-1 393 has two appearance colors, green and yellow. The whitening effect is the same except that the shade of yellow OB-1 is a little purple. But for customers who produce color master batches, the yellow-green appearance of the Whitening Agent Optical Brightener OB-1 393 directly affects the appearance color of the particles, so be careful when choosing.For polyester stable fiber, green appearance is more popular.

2.Specification of Polyester Whitening Agent Optical Brightener OB-1:

Name:Polyester Stable Fiber Whitening Agent Optical Brightener OB-1 393

Appearance:Bright yellow/green powder

CAS No.:1533-45-5

Molecular Formula:C28H18N2O2

Purity:≥98.5%

Melting point:358-363℃

Ash:≤0.3%

Volatile matter:≤0.5%

3.Polyester Stable Fiber Whitening Agent Optical Brightener OB-1 393 Product details:

Place of Origin: China

Brand Name: RAYTOP

Certification: ISO9001

Application: FPolyester Stable Fiber Whitening Agent Optical Brightener OB-1 393

 mainly used in brightening or whitening synthetic fiber and plastics, PVC, foam PVC, TPR, EVA, PU foam, rubber, coating, paint, foam EVA and PE, can be used in brightening plastic films materials. It can greatly improve the whiteness of recycled polyester staple fiber and recycled textiles and plastic soda bottles (PET).

4.Our advantage:

1). Owned factory, Owned R&D center and lab, accept sample test and match.

2). Factory directly supply, steady quality and lower price

3. High quality ,Less dosage, Better effect.

4. Fast delivery, shipment can be done in 7 days after order confirmation.

5. We provide system whitening solutions and technique support.

6. 90% staff in optical brighteners industry experience is more than 6 years.

5.Packing information:

10kg or 25Kg/cardboard drum with inner double PE liner.