Optical brightener is a colorless fluorescent dye, widely used in textiles, paper, plastics and coatings. Around 1940, Optical brighteners and detergents began to be used. After 1950, optical brighteners were officially used in the detergent industry. In recent years, people not only have high requirements for the appearance of washing products, but also have higher and higher requirements for the washing effect of clothes, such as whiteness, brightness, and vividness. Optical brighteners are more and more widely used in detergents.

At present, 50% of the Optical brighteners produced in the world is used in the detergent industry, and Optical brighteners CBS-X is the mainstream Optical brighteners specially used in the washing industry. CBS can effectively supplement the Optical brighteners lost on textiles, making white textiles appear whiter in terms of visual effects, and colored textiles are more vivid. It is one of the important additives in fabric detergent formulations. However,Optical brighteners CBS-X is often questioned by the outside world. I would like to introduce everyone's misunderstandings today.

Misunderstanding 1: The Optical brighteners on clothes will migrate to human skin and cause harm to the human body.

Response: After Optical brighteners CBS-X comes into contact with the skin, it will only stay in the stratum corneum on the outermost surface of the skin and will not enter the dermis. Even after 72 hours of staying on the skin surface, the Optical brighteners CBS-X originally adsorbed on the skin will be washed away by other washings. Activities and removed. Years of animal and human experiments have shown that human skin will not be irritated even if it comes into direct contact with pure. Optical brighteners CBS-X products.

Misunderstanding 2: Optical brighteners cause cancer.

Since the emergence of Optical brighteners, scientific researchers from various countries have conducted various tests on my family's safety issues. Independent organizations and scientific research institutions such as the European Chemical Industry Association and the Japanese National Hygiene Laboratory have conducted comprehensive and in-depth research on Optical brighteners and issued reports. The research results show that Optical brighteners CBS-X has no irritation to the skin and eyes, no carcinogenicity, no reproductive toxicity and teratogenicity, etc., and has no negative impact on the human body and the environment.

In addition, according to the results of acute toxicity measurement data, according to the "GB 15193.3-2003 Acute Toxicity Test", the acute toxicity of Optical brighteners CBS-X and table salt belong to the same level.

The German Ministry of Environment solemnly declared in 1983,Optical brighteners CBS-X does not have any sensitization or teratogenicity.

The European Union Detergent Association (A.I.S.E.) issued a safety evaluation report in 2003, stating that Optical brighteners CBS-X is safe to use in laundry detergents.

Myth 3: Optical brighteners CBS-X in detergents can pollute the environment.

The amount of Optical brighteners CBS-X used in detergents is not high. After rinsing and diluting, after a general treatment of domestic sewage, CBS can be reduced by more than 95%, and the amount of Optical brighteners CBS-X finally entering the environment is very small. Even if a small part of it enters surface water (such as rivers), it will undergo photodegradation very quickly. The products of photodegradation are also easy to undergo secondary degradation, that is, they will be decomposed into carbon dioxide and other substances that have no impact on the environment after being eaten by microorganisms.

Optical brighteners CBS-X is a water-soluble Optical brighteners that will not stay in biological tissues and organs after being eaten by fish. Laboratory studies have shown that even if fish live for a period of time under the condition of high concentration of Optical brighteners CBS-X,Optical brighteners CBS-X will not accumulate in the fish body for two days after being out of this environment.

Myth 4: Optical brighteners CBS-X in detergents can irritate the skin of infants and young children through clothes.

Response: Infant skin is indeed more delicate than adult skin, but Optical brighteners CBS-X still does not cause irritation to it. Moreover, in fact, most of Optical brighteners CBS-X does not appear in detergents for infants and young children, because the principle of Optical brighteners CBS-X addition is "only when necessary." Most of the white clothes for infants and young children do not require pure white like adults, but off-white, so Optical brighteners CBS-X does not need to appear in the special detergent for infants and young children.

There are 5 factories can produce optical brightener CBS-X in china with production capacity 620mt per year-end another 4 factories in other countries with capacity 280mt per year.So the price of optical brightener CBS-X mainly depend on China's market situation.If you want to know more about it, pls feel free to contact with us for detail and fresh news.

From the Sep of 2021,because of the raw material price increase,optical brightener CBS-X 351 CAS NO.:27344-41-8 price increase from USD15.00/kg to USD20.30/kg FOB CHINA.In experience,winter price will increase or steady,but not will decrease.So we suggest our old customers to make stock at the begin of the winter,it is around Oct,and Nov is the best time.