Complaint
Fluorescent whitening agent OB-1, 2,2- (4,4-stilbene) bisbenzoxazole, is a yellow crystal with a melting point of 359-362 ºC. It is insoluble in water, odorless, and has stable performance. The maximum absorption spectrum wavelength is 374nm, and it has strong fluorescence. The fluorescence emission wavelength is 434nm. Fluorescent whitening agent OB-1 is a highly efficient fluorescent whitening agent used for polyester fibers, and is widely used in plastics such as ABS, PS, HIPS, PC, PP, PE, EVA, and hard PVC. It has excellent whitening effects, excellent thermal stability, and minimal addition.
Product Name | Optical brightener OB-1 |
Chemical Name | 4,4'-Bis(2-benzoxazolyl)stilbene |
CAS NO. | 1533-45-5 |
MF | C28H18N2O2 |
Appearance | Yellowish green powder |
Purity | 99.0%min |
UV Absorption | Minimum UV wavelength: 374nm Maximum UV wavelength: 434nm |
Melting point | 357-360ºC |
Packing and storage | 25 kg fiber drum, or per customer request |
Used for whitening polyester raw materials, especially suitable for whitening polyester fibers and blending polyester with cotton and other fabrics. It can also be used for whitening plastic products
1. 24Hour-On-Line Professional Quick Response.
2. 15years of Exporting Experience to more than 20 countries all over the world.
3. Fast delivery within 10working days after payment.
4. Flexible payment methods: TT, LC, DP, Western Union, Paypal.
5. Professional guide on your purchase strategy based on market trendency.
Q1: Are you a manufacturer or trading company?
Re: We are one company integrated industry and trade. No matter the products we manufacture or trade, high quality products and competitive price always will be provided for you.
Q2: May I get one sample before placing order?
Re: Yes, we'd like to provide sample for you. free samples(max 1Kg) are available, but freight cost will be born by customers.
Q3: Which payment is available for your company?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), Western union, Paypal, Credit card, Alipay or Alibaba trade insurance all is ok. You can choose the one which is convenient for you.
Q4: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.
Q5: Is there any possible to use my appointed label or package?
Re: Sure. If needed, we'd like to use label or package according to your requirement.
Q6: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are high qualified. If the goods can't come to the quality we promise, you can ask for refund.
