| Customization: | Available |
|---|---|
| CAS No.: | 12768-92-2 |
| Formula: | C40h40n12o16s4na4 |
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Optical brightener 4BK powder is readily soluble in water. It is acid-resistant and alkali-resistant.
Optical brightener 4BK powder has much better whitening effect at pH 4.5-7. Belonging to anionic type, it can be used in the one bath with anionic or nonionic surfactants
| Chemical Name | Fluorescent brightener 4BK optical brightener 4BK Powder |
| Cas No. | 12768-92-2 |
| Ingredients | Stibene sulfonic acid derivative |
| Fluorescent intensity(equivalent to standard product) | 370 |
| Whiteness WCIE | ≥0 |
| Viscosity(25 ºC),mPa.s | ≤50 |
| PH Value | 8-10 |
| Ionicity | Anion |
1.Optical brightener 4BK powder is mainly applied to whiten paper pulp, surface sizing, and coatin.
2.Optical brightener 4BK powder is also applied to whiten cotton, linen and cellulose fiber as well as cellulose fabrics, and to brighten light-colored cellulose fabrics.
1. When optical brightener 4BK powder is used in paper-making industry, add them into the paper pulp, coating solvent and surface gluing solvent after dissolving with the 20 times water. Usual dosage: 0.1-0.3% on dry pulp or dry dope.
2. When optical brightener 4BK powder is for whitening the cotton, hemp or cellulose, directly adding the fluorescent brightener dissolved with water into the dye vat, the dosage: 0.08-0.3%, bath ratio: 1:20-40, the dying temperature:80ºC.
Stored in a cool dry place out of direct sunlight
Shanxi Colorshine Chemical Industry Co.,ltd is experienced and dynamic in chemical line. We are a professional manufacturer and supplier in the business scope of producing optical brighteners, carbon black, masterbacth, polyvinyl alcohol, sulphuric dyes, acid dyes,direct dyes and surface surfactant etc in China. We have our own R&D center and team. With most strict quality contral system and advanced modern equipment, we always provide our customers with best quality. The advanced equipment/technology, competitive price, sustainable and reliable quality control from us enable our customers enjoy more trust and cutting-edge strength in the local and world market. Our goal is to survive by quality and develop by credit.
In the past 16 years, our products have been exported to more than 31 countries in the world, Europe, South America, North America,Southeast Asia and Africa.we have developed mutual profitable and long-term relationship across the world wide.We will always give our customers the best quality products, the most reasonable prices and effective safe transportation.
What is Optical brightener 4BK powder?
Optical brightener 4BK powder, also known as Fluorescent brightening agent 4BK is a type of optical brightener that is commonly used in the textile, paper, and detergent industries. It is a white or off-white powder that is readily soluble in water and has a strong blue fluorescence under ultraviolet light
How does Optical brightener 4BK powder work?
Optical brightener 4BK powder works by absorbing ultraviolet light and emitting blue light, which makes the material appear brighter and whiter.Optical brightener 113 powder is water-soluble and can be easily dissolved in hot water.The effectiveness of FBA 4BK powder can be influenced by the pH of the material being treated. It works best at a pH between 7-10.
What is the advantage of Optical brightener 4BK powder?
1.Thermal stability: Optical brightener 4BK powder is relatively stable at high temperatures and can withstand the heat generated during the processing use.
2.Compatibility: Optical brightener 4BK powder is compatible with a wide range of materials, including cotton, wool, silk, nylon, polyester, and paper.
3.Dosage: The amount of Optical brightener 4BK powder required depends on the type of material being treated and the desired level of whiteness. Typically, a dosage of 0.1-0.5% is used in textile applications, while a dosage of 0.01-0.05% is used in paper applications
Q1: Are you a manufacturer?
Answer: Yes, we are a factory since 2006.
Q2: How to contact with us?
Click the "Contact Supplier" And then send us message the product you interest in, you will get valid reply within TWO hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T, L/C,D/P At sight or negotiable.
Q4:Can you give me a discount price?
Sure,It depends on your quantity
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your
order in the future.
Q6: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the
samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q7:How do you treat quality complaint?
A:First of all, our quality control system will reduce the quality problem to near zero. If there is a real quality problem caused by us,
we will send you free goods for replacement or refund your loss.
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