Optical Brightener KCB CAS NO.5089-22-5

1.General information of Optical Brightener KCB

Product name:Optical Brightener KCB
Synonyms:1,4-bis(2-benzoxazoly)naphthalene ; Fluorescent Brightener 367; 2,2’-(1,4-naphthalenediyl)bis-benzoxazol 

About Optical Brighteners

There are approximately 400 brightener types listed in the Colour Index, but less than 90 are actually produced commercially and only a handful are commercially important. Generically, the C.I. FBA number can be assigned to a specific molecule, however, some are duplicated, since manufacturers apply for the index number when they produce it. The global OBA production for plastics, textiles and detergents is dominated by just a few di- and tetra-sulfonated triazole-stilbenes and a di-sulfonated stilbene-biphenyl. These are subject to fading when exposed long term to UV, due to the formation of optically inactive stilbene cis-isomers found at the center of the molecule. Exposed to gases and especially oxygen they will fade too, like most dye colorants. All brighteners have extended conjugation and/or aromaticity, allowing for electron movement. Some non-stilbene brighteners are used in more permanent applications such as whitening synthetic fiber. 

2.Application of Optical Brightener KCB

Optical Brightener KCB is mainly used in whitening of synthetic fiber and plastic products, especially good at whitening of EVA

Guangzhou Shiny Co., Ltd., established in 2007, is a dynamic technology-based chemicals company, dedicated to the development,production and marketing in the fine chemical industry, composed of 4 manufacturing bases, 3 R&D centers and one import & export company. 

We have obtained ISO9001:2008 international quality certification. Our services cover the whole range from small amount (kilogram) for research to large bulk of multi-tons for industrial production, synthesis capacity from 1 liter to 3,000 liters are available. GMP compliant quality assurance system and stringent regulations on cosmetic and pharmaceutical industries enable us to enjoy more trust and cutting-edge strength in the local and world market. 

Guangzhou Shiny focuses on the following sectors: 

--Aromatic Compounds, Cinnamic derivatives, Esters of Phenylacetate, etc.

--UV Absorbers, for cosmetic, rubber and plastics, etc. 

--Personal care and home-care ingredients (disinfectors, surfactants, etc.) 

--Optical brighteners for detergent and plastics, etc. 

--Pharmaceutical intermediates 

-- Active Pharmaceutical Ingredients(API) 

To become ‘Your One Stop Specialty Chemicals Supplier’ is the goal we are striving to reach. 

We are committed to surpassing your expectations and hope by timely delivering the best quality products at the most competitive prices from China, and providing considerate and reliable after-sales service and support.

1.Q: What are you target clients?

Importers or customers who in market for plastics, fiber and so on.

2.Q: Do you supply free samples? 

Samples are free of charge

3.Q: How do you make a price offer and how long is its validity?

By e-mail 15days.

4.Q: What payment terms do you accept?

L/C, T/T, DP.

5.Q: Do you accept third party inspection?

Yes.we do.

6.Q: Where do you load the goods?

Any port in China.

7.Q: Is the product harmful to human health?

According to the product property.

8.Q: What types of containers are used to package products from your company?

20'FCL,40’FCL or as customer requirement.

9.Q: Can I pay with a credit card?

Of course you can.

10.Q: Is your company able to accept custom and meet customer specific specification requirements?

Yes,we can.

To become ‘Your One Stop Specialty Chemicals Supplier’ is the goal we are striving to reach. We are committed to surpassing your expectations and hope by timely delivering the best quality products at the most competitive prices from China, and providing considerate and reliable after-sales service and support.