A optical brightener is a fluorescent dye, or called white dye, and is a complex organic compound. Its characteristics: It glows under light, giving the material a shiny fluorescent glow, making it look whiter.
The principle of a optical brightener is an optical "visual enhancement". It absorbs ultraviolet light (wavelengths of about 60 to 380 nanometers) in sunlight that is invisible to the naked eye, and then converts this light into blue light or blue-violet light visible to the human eye. This blue light will be superimposed on the slightly yellowish light emitted by the fabric itself, producing a visual effect close to pure white, making people feel that the clothes have become brighter and cleaner.
More specifically, it can neutralize the slightly yellowish hue in the fabric or material, and reflect more visible light, mainly in the wavelength range of 400 to 600 nanometers, that is, the blue, green and red light areas that our eyes can see. In this way, not only does the white appear whiter, but the entire object also looks brighter, more shiny and vivid. This visual enhancement is a "brightening effect" in daily life.
Let’s first understand the types of fluorescent agents. Fluorescent agents are a class of chemicals that emit visible light under ultraviolet light. Common fluorescent agents include optical brighteners and fluorescent dyes. Optical brighteners are mainly used to increase the whiteness and brightness of items, such as common laundry detergents and paper in our lives. Fluorescent dyes are widely used in dyes, inks and certain plastic products.
Where is optical brightener generally used?
Clothes: For example, white shirts and bed sheets, fabrics with brighteners will appear whiter and newer.
Paper: White paper looks brighter, not pure dead white, but a bit "shiny white".
Laundry detergent, laundry powder: Do you feel that your clothes are "fresh" after washing? It may be due to its credit.
Plastic products: Sometimes a little bit of white plastic is added to make it look less old.
Optical brighteners were first used to make things look whiter and brighter, such as paper, plastic, leather, and various washing products. It can neutralize the original yellowish color of the material, making the overall look cleaner and glossier. However, its uses are far more than that. With the development of technology, more and more high-tech fields have begun to use fluorescent brighteners. For example: fluorescence detection, dye lasers, anti-counterfeiting printing, etc. In addition, high-sensitivity films used in aerial photography will also add fluorescent brighteners to increase the sensitivity of photosensitive latex.
Optical brighteners were first classified as printing and dyeing auxiliary products, and then as dye products. Due to its unique properties and large usage requirements, it has been separated from the above two industries and become a separate category of fine chemical products. The largest user of fluorescent brighteners is detergents, the second largest user is paper, and textiles are the third largest user.
Where can you buy Fluorescent pigments in bulk?
fluorescent pigments emit bright, visible light under ultraviolet or other light sources and are widely used in various applications, including fluorescent coatings, stationery, textiles, plastics, advertising signage, and electronic displays. As a professional Daylight fluorescent pigment ingredients. supplier and manufacturer, Wanlong Chemical Co., LTD. has nearly 10 years of experience in supplying and exporting fluorescent pigment ingredients from China. You can confidently purchase fluorescent powder from Wanlong Chemical Co., LTD. If you have any questions or concerns, please feel free to contact us and we will get back to you within 1 business day.
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Established in 1989, Wanlong Chemical Co., LTD. has been focusing on polymer synthesis and fine chemical intermediates research and development and production for nearly 40 years, and has developed three business systems - polymer materials, organic dyes and chemical intermediates, including Fluorescent pigment powder. We offer wholesale prices for bulk purchases, even for small quantities, and offer a free sample to potential customers. If you have needs please contact us.
Post time: 2025-04-10 16:39:25
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