Optical Brighteners by Smit chemicals

Optical brighteners, also known as fluorescent whitening agents (FWAs), are chemical compounds that absorb ultraviolet (UV) light and emit visible light, making materials appear brighter and whiter. They are commonly used in a variety of products, including laundry detergents, paper, plastics, and textiles.

Optical brighteners work by absorbing UV light and re-emitting it as visible light in the blue region of the spectrum. This blue light complements the yellowish tinge that is often present in materials, making them appear whiter. Optical brighteners do not actually remove any dirt or stains from materials, but they create the illusion of cleanliness and brightness.

Optical brighteners are used in a wide variety of products for a variety of reasons. In laundry detergents, they are used to make clothes appear whiter and brighter. In paper, they are used to improve brightness and opacity. In plastics, they are used to improve whiteness and reduce yellowing. In textiles, they are used to improve whiteness and brightness, and to reduce the appearance of fading.

Optical brighteners are generally considered to be safe for human use. However, some people may experience skin irritation from exposure to optical brighteners. Additionally, optical brighteners can accumulate in the environment, so it is important to use them responsibly.

For more Information: Optical Brighteners