OB-1
1533-45-5
C28h18n2o2
216-245-3
Powder
Plastic Auxiliary Agents
Yellow-Green
Optical Brightener/Fluorescent Brightener
Optical Brightener Ob-1/Whitening Agent Ob-1
393
357~359°c
414
99.50%
Available
LD Chemical
Bag, Drum
2kg/bag; 25kg/drum
Changsha, Hunan
320420
Product Description

Product Description
Product Name:
Chemical Optical Brightener Ob-1 C. I. No. 393 for Plastic Fluorescent Brightener Ob-1 Optical brightener OB-1 is one of the most commen and widely use whitening agent, It has a very good whitening effect for kinds of plastics. such as:ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc.optical brightener ob-1 temperature is 350 degrees, which is the highest temperature resistance of all optical brightener at present. For high temperature resistant plastics, only ob-1 can be used, and the addition amount of optical brightener ob-1 is small and the whitening degree is high.
Optical Brightener Ob-1 Specification
Optical Brightener Ob-1 has two appearance: green and yellow
Chemical Optical Brightener Ob-1 C. I. No. 393 for Plastic Fluorescent Brightener Ob-1
Optical Brightener Ob-1 Specification
Product Name | Optical Brightening Agent OB-1 |
Chemical Name | 2.2'-(4.4'-diphenol vinyl) dibenzoxazol |
CAS No. | 1533-45-5 |
C.I. No. | 393 |
Molecular Formula | C28H18N2O2 |
Molecular Weight | 414 |
Technical Index | Appearance:yellowish green powder Melting Point:357~359°C Purity:≥99% |
Uses | Mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization. For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc. Rate of use: (per 1000kg of substrate) Polyester: 75-300g EVA, PP, nylon: 75-200g |
Package | 25kg per fiber drum |
Optical Brightener Ob-1 has two appearance: green and yellow

Optical Brightener Ob-1 Green and Yellow difference:
1)The production process is difference
OB-1 green: vulcanization method
OB-1 yellow: lipidation method
2)The color shade is difference
OB-1 green: blue
OB-1 yellow: blue-violet
3)The PH is difference
OB-1 green: PH<7
OB-1 yellow: PH>7
Optical Brightener Ob-1 Application:be widely used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC,Nylon,Polyester Stable Fiber and kinds of Masterbatch.
Optical Brightener product range:
I.OPTICAL BRIGHTENER FOR PLASTICS/RUBBER/INK/COATING | ||
Optical Brightener OB-1 | C.I. 393 | CAS NO.1533-45-5 |
Optical Brightener OB | C.I. 184 | CAS NO.7128-64-5 |
Optical Brightener FP-127 | C.I. 378 | CAS NO.40470-68-6 |
Optical Brightener KCB | C.I. 367 | CAS NO.5089-22-5 |
Optical Brightener KSN | C.I. 368 | CAS NO.5242-49-9 |
Optical Brightener EBF | C.I. 185 | CAS NO.12224-41-8 |
Optical Brightener ER-I | C.I. 199 | CAS NO.13001-39-3 |
Optical Brightener ER-II | C.I. 199:1 | CAS NO.13001-38-2 |
Optical Brightener ER-III | C.I. 199:2 | CAS NO.13001-40-6 |
II.OPTICAL BRIGHTENER FOR DETERGENT | ||
Optical Brightener CBS-X | C.I. 351 | CAS NO.27344-41-8 |
Optical Brightener CXT | C.I. 71 | CAS NO.16090-02-1 |
III.OPTICAL BRIGHTENER FOR TEXTILE | ||
Optical Brightener ER-330 | C.I. 199 | CAS NO.13001-39-3 |
Optical Brightener BA | C.I. 113 | CAS NO.12768-92-2 |
Optical Brightener BBU | C.I. 113 | CAS NO.16470-24-9 |
Optical Brightener CXT | C.I. 71 | CAS NO.16090-02-1 |
IV.OPTICAL BRIGHTENER FOR PAPER/PULP MAKING | ||
Optical Brightener BA | C.I. 113 | CAS NO.12768-92-2 |
Optical Brightener BBU | C.I. 220 | CAS NO.16470-24-9 |
V.OPTICAL BRIGHTENER FOR WOOL/ACRYLIC | ||
Optical Brightener SWN | C.I. 140 | CAS NO.91-44-1 |
Optical Brightener BAC | C.I. 363 | CAS NO.95078-19-6 |
Optical Brightener Certificates:SGS,REACH,ROHS,FDA


