Optical Brightener Ob-1 C. I. 393 with Greenish and Yellowish

• Customization: Available
• CAS No.: 1533-45-5
• Formula: N/a
• Material: N/a
• Plastic Properties After Heated: N/a
• Plastic Forming Method: N/a
• Color: Green
• CAS: 1533-45-5
• Appearance: Bright Yellowish Green Crystal Powder
• Mf: C30h26o2
• Product Name: Optical Brightener Ob-1 393 for PP PVC Pet Enginee
• Transport Package: Drum
• Specification: 25kg
• Trademark: Sunman
• Origin: China
• HS Code: 320420
• Production Capacity: 1200mt/Year

Product Description

 

Product Description

Optical Brightener OB-1 393 for PP PVC PET Engineering Plastics

Chemical name:
2.2'-(4.4;-diphenol vinyl) dibenzoxazol

CAS NO.1533-45-5

C.I.NO.393

Molecular Formula:
C28H18N2O2

Properties:
The optical brighteners significantly improve the whiteness in both textile fibers and plastics. In polyester and nylon fibers, the optical brighteners impart pleasing white-than-white appearance and give more intensity to some colors as well. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers, OB-1 is an effective brightener for many plastics.

OB-1 provides an excellent white, permanent color since the brightener is dissolved in the polymer or fiber during polymer manufacture. This permanence gives much better brightness retention over time versus other methods such as bleaching or surface treatment with optical brighteners. Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellow color of a polymer and provide the white-than-white appearance.

Usage:

Used for coating, plastic, polyester fiber, nylon fiber, polypropylene, hard PVC, ABS EVA, polystyrene, polycarbonate, etc.

Specification:

Appearance:	yellowish green powder
Specific gravity (@20ºC)	1.39
Melting point (ºC)	355-360
Purity (%)	98.5 Min
Loss on drying (%)	0.5 Max

Packing:
25kgs fiber drum

Quantity:
around 6mts/20fcl without pallet or 5.25mts/20fcl with pallet

Storage:
keep in cool, dry place with ventilation equipment, far away from high temperature and sunshine

 

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