High Purity Optical Brightener Ob-1 for Masterbatch Polyester Fiber PE PVC ABS EVA PS LD

• CAS No.: 1533-45-5
• Formula: C28h18n2o2
• EINECS: 216-245-3
• Color: Green
• Kind: Fluorescernt Brighening Agent
• Appearance: Powder
• Model NO.: Optical Brightener Ob-1
• Purity: 99%
• Color Tone: Bluish / Reddish
• Melting Point: 360 Degree
• Feature: High Temperature Resistance
• Transport Package: 25kg/Drum
• Specification: 400um
• Trademark: LD Chemical
• Origin: China
• HS Code: 32042000
• Production Capacity: 8000mt/Year

Product Description

High Purity Optical Brightener Ob-1 for Masterbatch Polyester Fiber PE PVC ABS EVA PS
 

Product Name	Optical brightener OB-1(C.I. 393)
CAS No.	1533-45-5
EINECS No.	216-245-3
Other Name	4,4'-Bis(2-benzoxazolyl)stilbene
MF	C28H18N2O2
Appearance	Bright yellow / green crystalline powder
Purity	≥99%
Melting point	360~380 °C
Volatile:	<0.5%
Package	20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.
Application	Mostly used in the brightening the products of synthetic fiber and plastics, it is widely used in plastic film, material of lamination moulding and injection moulding as well  as preferable brightening efficiency on polyolefin, PVC, PVC foaming, TPR, EVA and PU  foaming together with coating, natural lacquer, etc. It also has specially good effect on foaming plastics, especially EVA, PE foaming.
Dosage:	Optical brightener OB-1 is commonly used in the amount of 0.02-0.05%, that is, each 100kg of the materials, the optical brightener OB-1 takes 20g-50g or can be adjusted according to the requirements of the product or test
Properties	•     Colors appear more brilliant •     Environmentally friendly •     Excellent brightening ability •     Produce a bluish tinge, masking yellowness •     Whiter-than-white appearance.

 
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,PolyesterStable 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