Optical brightener chemical name is fluorescent or optical brightening agents, are chemical compounds used in various industries, including textiles, detergents, and paper, to improve the brightness and appearance of materials. These brighteners work by absorbing invisible ultraviolet light and converting it into visible blue light, which enhances the whiteness and brightness of the material, making it appear cleaner and more vibrant. Optical brighteners are commonly added to laundry detergents to make clothes appear whiter and brighter after washing. In the textile industry, they enhance the brilliance of fabrics, while in the paper industry, they improve the whiteness of papers and other printing materials.

It is essential to note that optical brighteners do not remove stains or dirt; they only provide a visual effect to improve the overall appearance of the fabric. 



Optical Brighter

Optical brighteners in
laundry detergent

Optical brighteners in laundry detergent are additives that help enhance the clothes’ appearance by making them whiter and brighter. These compounds work by absorbing ultraviolet light and converting it into visible blue light, which offsets the yellowish or dull appearance of fabrics. When added to laundry detergent, optical brighteners remain on the surface of the washed clothes, reflecting light and giving the illusion of cleaner and fresher garments.

As a result, using optical brighteners in laundry detergent is a cosmetic solution to make clothes look cleaner and brighter without affecting the actual cleanliness or performance of the detergent in stain removal.

Optical brighteners chemistry

The chemistry of optical brightening agents (OBAs) involves a fascinating process that enhances the appearance of materials by absorbing ultraviolet light and re-emitting it as visible blue light. OBAs are organic compounds that possess conjugated double bonds, allowing them to absorb UV light. When textiles or papers treated with OBAs are exposed to UV light, the absorbed energy triggers fluorescence, emitting blue light that complements the yellowish tint of aged materials. This phenomenon tricks the human eye into perceiving the material as brighter and whiter. Optical brightening agents are widely used in industries such as textiles, paper, and detergents to enhance the visual appeal of various products.

Optical brighteners in textiles Industry

OBAs are extensively used in the textile industry to enhance the brightness and whiteness of fabrics and garments. They are added to laundry detergents, fabric softeners, and boosters to make optical brightener for cotton to appear brighter and fresher.

Paper Industry

In the paper industry, OBAs improve the brightness and optical properties of paper products such as copier paper, printing paper, and packaging materials. Optical brightening agent for paper help to achieve a more vibrant appearance and make the paper appear whiter.

Detergent Industry

Optical brightening agents are a common ingredient in laundry detergents and washing powders. Optical brightener manufacturers work by absorbing UV light from the environment and emitting visible blue light, thus making fabrics appear brighter, even in lower light conditions.


Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs), or fluorescent whitening agents (FWAs) are chemical compounds that absorb light in the ultraviolet and violet regions.

These additives are often used to enhance the appearance of the color of fabric and paper, causing a “whitening” effect.

Optical brighteners S.A, BBU, BBU Liquid, BSB, DMX-S are acid-resistive & perform well in acidic media. While using with hydrogen peroxide as a bleaching agent it gives very impressive results. They can be applied by padding or a continuous process.

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