Optical Brightener OB-1 CAS 1533-45-5: Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Optical Brightener OB-1 (CAS 1533-45-5) is a high-performance fluorescent whitening agent widely used in plastics, textiles, and detergents. Key parameters:
| Parameter | OB-1 | OB (Standard) | OB-2 |
|---|---|---|---|
| CAS Number | 1533-45-5 | 7128-64-5 | 12224-12-3 |
| Molecular Formula | C₂₈H₂₀N₂O₂ | C₂₈H₁₈N₂O₂ | C₄₀H₃₈N₁₂O₆ |
| Light Fastness | Grade 7-8 | Grade 5-6 | Grade 6-7 |
2. Detailed Applications
Key Industries Served:
- Textiles: Enhances whiteness in synthetic fibers at 0.05-0.3% concentration.
- Plastics: Improves brightness in PVC and polyolefins (50-500 ppm).
- Paper: Used in coatings for premium packaging materials.
- Detergents: Boosts fabric whiteness in laundry formulations (0.1-0.5%).
- Inks: Creates luminous effects in security printing applications.
3. Industry Use Cases
Case 1: Textile Manufacturing
A polyester fabric producer achieved 15% higher whiteness scores using OB-1 at 0.2% dosage, reducing energy costs by 8% compared to traditional bleaching.
Case 2: Plastic Masterbatch
Injection molding company reduced yellowing in transparent PVC sheets by 40% through OB-1 incorporation at 300 ppm concentration.
4. Verified Client Success Stories
Client A: Global Detergent Manufacturer
- Challenge: Improve UV stability in cold-water detergents
- Solution: 0.3% OB-1 + antioxidant synergy
- Result: 20% longer-lasting whiteness (ASTM D6329)
Client B: Automotive Plastics Supplier
- Challenge: Prevent dashboard discoloration
- Solution: 450 ppm OB-1 in PP matrix
- Result: Maintained ∆E <1.5 after 1,000 hrs Xenon testing
5. Request Technical Specifications & Pricing
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