Optical brighteners, detergent

Uses Optically brightened detergent powd. for improving wash effectiveness on denim... 

Derivatives are reported as components of optical brighteners (- detergents) as well as intermediates for the manufacture of pharmaceuticals and cosmetic ingredients. 

Some laundry detergents contain optical brighteners. These are fluorescent dyes that glow blue-white in ultraviolet light. The blue-white color makes yellowed fabrics appear white. 

Whiter whites Brighter brights You ve heard such claims made by many manufacturers of laundry detergents. The chemical structure of the additives called optical brighteners provides the essential factors that make these superior detergents possible. 

Uses Solvent for waxes, casein, dyes, and resins manufacture of rubber additives, various pharmaceuticals, paper chemicals, plasticizers, corrosion inhibitors, emulsifiers, pesticides solvent optical brightener for detergents hair conditioners additive to boiler water preservation of book paper ingredient in various automotive products including brake cleaners and waxes organic synthesis. 

Detergents. Ultramarine pigments are widely used to enhance the effects of optical brightening agents in improving whiteness of laundered fabrics [3.176], They do not stain or build up with repeated use. 

Triazinyl derivatives of 4,4 -diaminostilbene-2,2 -disulfonic acid have been available since 1941 and remain the most important class of optical brighteners in terms of quantity. Some 75 derivatives have been put on the market [1], In the textile industry, they find use in brightening cotton, regenerated cellulosic fibers, and polyamides. They can also be included in detergent formulations and used to brighten paper, either in the pulp or in the coating. 

Optical brighteners (fluorescent whitening agents, FWAs) are used primarily in the textile, detergent, and paper industries and are also added to plastics [118], The mode of application and performance requirements differ greatly from one substrate to another, but there are five common basic principles ... 

Regular replacement of brighteners degraded during use improves the acceptance of textile articles and thus helps extend their service lives [137,138], Optical brighteners are therefore used in laundry detergents and are required above all for cotton fabrics [139],... 

Immerse a piece of test fabric in a hot solution(0.5 gof detergent, 200 mLof water) of a commercial laundry detergent that you suspect may contain an optical brightener (e.g.. Tide and Cheer) for 15 min. Rinse the fabric thoroughly, dry, and compare with an untreated fabric sample under an ultraviolet lamp. 

Use Rubber accelerator, solvent, additive to boiler water, waxes and polishes, optical brightener for detergents, corrosion inhibitor, preservation of book paper, organic intermediate (catalyst, antioxidants, pharmaceuticals, bactericides, etc.). 

The production and consumption of optical brighteners are constantly increasing and the annual increase is amounted to about 10-12%. In addition to textile, detergent and paper industries (Table 10.1), optical brightening agents are also used... 

These are added to paper, plastics and detergents to increase the whiteness by absorbing UV light and emitting blue light. Many optical brighteners are stilbene derivatives, but a number of heterocyclic ring types are also important, for example the oxazole and triazole derivatives shown below, 1,3,5-triazines and... 

Optiblanc. P-V Sigma Prodotti Chimid] Additives for detergents, textiles, paper, plastics optical brightener fw fibers. 

The reverse process, ultraviolet light producing visible light by fluorescence, is very common. Certain brands of laundry detergents contain materials called optical brighteners which, for example, can make a white shirt look much whiter and brighter than a similar shirt washed in ordinary detergent. 

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