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Laundry detergent fluorescing under ultraviolet light. 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 region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) through the ...
4,4′-Diamino-2,2′-stilbenedisulfonic acid is the organic compound with the formula (H 2 NC 6 H 3 SO 3 H) 2 C 2 H 2.It is a white, water-soluble solid. Structurally, it is a derivative of trans-stilbene, containing amino and sulfonic acid functional groups on each of the two phenyl rings.
The blue light emitted by the brightener compensates for the diminishing blue of the treated material and changes the hue away from yellow or brown and toward white. Optical brighteners are used in laundry detergents, high brightness paper, cosmetics, high-visibility clothing and more.
Arm & Hammer 33200-01001 Powder Laundry Detergent. ... First up on our list of the 7 best laundry detergent for hard water is Loni Bio Laundry Detergent. This fragrance free option comes in a 75 ...
Laundry detergent is manufactured in powder (washing powder) and liquid form. While powdered and liquid detergents hold roughly equal share of the worldwide laundry detergent market in terms of value , powdered detergents are sold twice as much compared to liquids in terms of volume .
This formula which comes in four hues, also has vitamin E to help prevent hyperpigmentation triggered by free radical damage. Plus, it doesn’t leave behind a white cast, according to the brand.
3 Optical Brighteners Are Not Laundry Detergent. 4 Paper brightness (whiteness?) 1 comment. 5 Emitted wavelengths range. 2 comments. Toggle the table of contents.
The brand was first introduced in 1959 in France, by the Lever Brothers company, as a low-suds washing powder specially designed for automatic washing machines. [2] During 1960s it was also introduced in other European countries such as Spain, Portugal and Greece. Since 1970s it also contains enzymes in its formula, being a biological detergent.