China Manufacturer Optical Brightener Whitening Agent Ob-1 Yellow

• CAS No.: 1533-45-5
• EINECS: 216-245-3
• Color: Green
• Kind: Fluorescernt Brighening Agent
• Appearance: Powder
• Purity: 99%
• Model NO.: OB-1 yellow
• Color Tone: Bluish / Reddish
• Melting Point: 360 Degree
• Feature: High Temperature Resistance
• Transport Package: 25kg/Drum
• Specification: 400um
• Origin: China
• HS Code: 32042000

Product Description

 China manufacturer optical brightener whitening agent ob-1 yellow 
 

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:	OB-1 can be used for the whitening and brightening of polyester fiber, nylon fiber and other chemical fibers. It is suitable for PP, rigid PVC, ABS, PA, PS, PC, PBT and EVA. It is suitable for adding into the whitening agent concentrated masterbatch, and recycled polyester fiber easte, bottle material and chips.
Properties	•     Colors appear more brilliant •     Environmentally friendly •     Excellent brightening ability •     Produce a bluish tinge, masking yellowness •     Whiter-than-white appearance.

 
Other name: Fluorescent brightener C.I.393
CAS NO: 1533-45-5

Appearance: Greenish yellow powder
Purity: 98.5%Min
Melting point: 355-360°C
Solubility: insoluble in water,but soluble in high boiling point organic solvent such as phenyl-chloride
Properties: Does not dissolve in water, can dissolve in such high boiling point solvents as trichlorobenzene, diphenyl ether,etc.; Because this product has high melting point and strong stability,so it has very good heat resistance; Because this product's hydrophobic nature, so it has good light fastness; and for it has strong fluorescence, it can not only improve the whiteness of the products but also can improve the brightness, so it can be used as disperse dyes in the chemical fibre, can be used like oil dissolving coloring agent in the plastics.
 

1.Physical and chemical index: 

Tint:  Near to minor, compared with standard

CIE L*a*b* :    L*≥102; a*≤-20; b≥50

Fluorescent Intensity (E1%1cm)  ≥2000

Volatile content  ≤0.3%

Ash content  ≤0.5%
 

2. Brief introduction

If no fluorescent whitening agent is added, most of the plastic products produced by plastic primary color granular are pale yellow, and the light-colored products have dim brightness and no texture, especially the recycled materials. The white or light-colored products produced are even more ugly. Adding fluorescent whitening agent will greatly improve the visual effect of the product. The product will turn from yellow to white and dark to bright; and fluorescent whitening agent is not Chemical whitening, is not physical whitening, but a kind of optical whitening, which achieves whitening and brightening effect by absorbing ultraviolet, reflecting visible light and reflecting to human eyes; therefore, the use of fluorescent whitening agent not only improves the appearance of the product, but also guarantee the safety of consumers. 

Uses:
1.Suitable for whitening chemical fibers, such as the polyester fibre, nylon fiber, polypropylene fiber and so on.
2. Suitable for whitening and brightening polypropylene plastic, hard PVC, ABS . EVA, polystyrene, polycarbonate, etc.
3. Suitable to be added into the conventional polymerization of polyester and nylon.
4. Especially suitable for whitening the plastics of elevated temperature.

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.

 

The max loading quantity for a 20' fcl is 5.25mts of 25kg drum with pallets, and 6.65mts of 10kg drum with pallets.

 

FQA

1.What's the diffenrence between Greenish and Yellowish OB-1?

The greenish OB-1 has the blue tone, while the yellowing OB-1 has the red tone. Except this, they has the same effect of whitening and brightening.

 

2. What is the minimum order quantity?

500kgs

 

3. What is your main market?

Europe, North America, India,Thailand,Indonesia,Korea,The middle east, Russia and etc.
 

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

 

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