Optical Brightener Ob-1
Physical and chemical index:
1、Appearance Yellow greenish powder
2、Content ≥98.0%
3、Melting point 353 — 359℃
4、Mesh size ≥800mesh (or customize)
5、Maximum absorption spectral wavelength 374nm
6、Maximum fluorescence emission wavelength 434nm
7、Tint Near to minor, compared with standard
8、CIE L*a*b* L*≥102; a*≤-20; b≥50
9、Fluorescent Intensity (E1%1cm) ≥2000
10、Volatile content ≤0.3%
11、Ash content ≤0.5%
12、Contamination control ≤5’
Features:
1. High whitening intensity and strong fluorescence
2. Extensive application scenarios
3. Excellent thermal stability and weather resistance
4. Less dosage
5. Good dispersion
6. High purity (HPLC test method)
7. Good compatibility with additives in plastics
8. Safe for food contact
9. Safe for toy
10. Safe for electronic products
11. Safe for transportation
12. Inexpensive price
13. Batch quality consistency
14. Less foreign matters
15. Different mesh size on requirement
16. Well protective packages
17. Sample free (below 1kg)
Scope of application:
1.Suitable for polyester fiber (PSF), nylon fiber and other chemical fiber whitening.
2.Suitable for PP (polypropylene), rigid PVC, ABS, PA (nylon), PS (polystyrene), PC (polycarbonate), PBT, HLPS, EVA and other plastics whitening and brightening, with excellent whitening effect, excellent thermal stability, very little additive amount and so on.
3.Suitable for adding into the whitening agent concentrated masterbatch. (e.g. LDPE concentrated masterbatch)
4.Suitable for adding into the recycled polyester fiber waste, bottle material and chips.
Recommended dosage:
The amount of whitening agent ob-1 added to each 1000kg material:
1. 75-300g for polyester fiber (75-300ppm).
2. 25-50g for rigid PVC, PP, ABS, Nylon, PC and son on(25-50ppm).
3. 5-7kg for whitening concentrated color masterbatch(5-7‰).
Attention:
For PE and soft PVC, special attention should be paid to the control of dosage, and excessive dosage will lead to the migration of the brightener. When adding any ultraviolet absorbent to the polymer, attention should be paid to adjusting the optimum dosage of OB-1.
Safety management:
This product can be managed according to general industrial chemicals. Gloves and protective glasses should be worn to avoid direct contact with skin or eyes. If stained with skin, rinse with clean water and soap.
Package: 10/20/25kg/fiber drum or carton (Lined with double plastic bags); or as required by the customer.
Classification |
Direct Brighteners |
End Use |
Fiber Whitener |
Type |
Other |
Business Nature
Manufacturer
Country/Region
Wuxue, China
Main Products
Optical Brightener...
Payment Terms
Doc Against Acceptance (D/A), Doc Against Payment (D/P), Letter of Credit (L/C), Bank wire (T/T)
We are a leading manufacturer of optical brightener OB-1 (C.I.393)in China. We have the yearly capacity of 3000mts of OB-1 which is the biggest in China. We use our self-developed patent technology and establish the management system mainly aim at energy saving, efficiency improving, and environmental protection. We wish to establish the long-term relationship with dear customers all over the world.