99.5% Fluorescent Brightener Ob Optical Brightener Ob CAS 7128-64-5

• Customization: Available
• CAS NO.: 1533-45-5
• Formula: C28h18n2o2
• Colour: Yellow
• Appearance: Powder
• Usage: Ink, Plastic, Paint, Textile, Paper, Leather, Photoelectric Communication, Ceramic, Cosmetic
• Application Material: Leather
• Type: Natural
• Composition: Bisdiazo
• Solubility: Solubility
• Name: Pigment Yellow 110
• Transport Package: 5kg/Bag
• Specification: 2kg/bag 5kg/bag
• Origin: China
• Production Capacity: 1000ton/Month

Product Description

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.

We have a strict testing process and will take samples for testing before each shipment.

1. Packing: 25kgs/drum (lined with plastic bag) or as per customer's request.

2. Delivery time:7-15 working days after deposit

3. We have full stock and can deliver within short time.

The fluorescent whitening agent OB-1 is also suitable for whitening polypropylene plastics rigid PVC,ABS,EVA,polystyrene,polycarbonate and polypropylene fiber.

Company Introduction:

Hebei Jietou Chemical Technology Co., LTD .is a professional production of Chemical Products. The company was established in 2000, the company actively explore overseas markets. The products are mainly exported to North America, South USA, Europe, Australia, the Middle East, Southeast Asia Africa, etc.. 

Our company mainly production workshop covers an area of 16000 square meters, 10000 square meters factory in. We are from China and the top machinery imported from domestic manufacturers of machinery and equipment, facilities. To ensure the quality of products, we are constantly updating our equipment and new equipment. 

As we built, we keep "quality policy, the pursuit of perfection, sincere service". Through this policy, we provide high quality products and the best service for customers. Our goal is to make progress, with the best value for their money to our customers. As a result, we have gained great reputation from our customers. 

We welcome you warmly inquiries. We guarantee, sincere service, high quality products and competitive price.

FAQ:
Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks.

Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5. How to proceed an order for your products?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for normal order.
Fourthly We arrange the production.

Q6. Is it OK to print my logo on package?
A: Yes. Please inform us before our production and confirm the design firstly based on our sample.

Q7: Are you trading company or manufacturer?
A: We are chemical factory in China. So we can provide wholesale price.
Q8: What are your payment terms?
A8: We can accept various payment methods, Western Union, T/T, Paypal,  etc.

Q9: Can your company accept the special requirements of customers?
A9: Of course, we can accept technical consultation, custom synthesis of pharmaceutical intermediates, etc.

Q10: How about the delivery time?
A10: The delivery time is about 7-20 days after confirming the payment. Delivery times vary from country to country. (excluding Chinese holidays)

Q11: What type of containers do your company's products use?
A11: Our discreet packaging, good airtightness guarantees 100% of your package to pass through customs, generally aluminum foil bags, fluoride bottles, plastic steel drums, plastic drums or according to customer requirements, we will try our best to meet your requirements.