WebAn optical brightener or fluorescent whitening agent is a compound which, when applied to a textile material, absorbs the short wavelength electromagnetic radiation (300-400 nm) which is invisible to the human … WebDec 28, 2008 · It's used to make fabric bright white after it's bleached. Works on all natural fabrics, including silks, that have already been whitened with bleach or peroxide. It does …
industrial-applications - Pylam Dyes
WebPylam Fluorescent Yellow LX-9740. Pylakrome Green LX-1919. Pylakrome Brilliant Green LX-1993A. Pylakrome Blue Green LX-10509. ... Oil Violet IRS. Perox Blue Whitener 3B. Pylakrome Plastic Black LX-5745. Pylakrome Jet Black A LX-12009. Solvent Soluble Liquid. Pylam Liquid Oil Red LO-2109. Pylam Liquid Oil Scarlet LO-2110. Pylam Liquid Oil ... WebA fluorescent white material is one that has been treated with special chemicals known as optical brightening agents (OBA’s), or sometimes referred to as fluorescent whitening … philosophers by era
Optical Whitening and Brightening of Pearls: A Fluorescence ...
WebFluorescent whitening agents (FWAs) are applied to fabrics during laundering to enhance the whiteness of textiles by inducing fluorescent by UV excitation and visible blue emission. Most FWAs have excitation maxima in range of 340–400 nm, and hence, have been known to improve the UPF of textiles. WebOptical brighteners or fluorescent whitening agents (FWA) are colorless to weakly colored organic compounds that, in solution or applied to a substrate, absorb ultraviolet light and re-emit most of the absorbed energy as blue fluorescent light between 400 and 500 nm. WebJan 5, 2024 · It is also called fluorescent whitening agent, optical brightening agent, fluorescent brightener, etc. Usually, it’s called OBA/FWA. The laundry detergent industry uses fluorescence to their advantage by use of agents (optical brighteners) that absorb invisible ultraviolet and emit visible blue light. philosophers bowls of rice