brighteners

n. Cov kaj zog; cov ua kom kaj

English-Hmong dictionary. 2013.

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  • brighteners — n. something which brightens, something which lightens …   English contemporary dictionary

  • optical brighteners —    Material contained in laundry detergents to make ‘whites whiter’ and used in environmental tracing studies. Common types are, Tinopal CBS X, Tinopal 5BM GX, and Phorwite BBH Pure. Dye type: Stilbene.    See also fluorescent dyes …   Lexicon of Cave and Karst Terminology

  • Optical brightener — Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs) or fluorescent whitening agents (FWAs) are dyes that absorb light in the ultraviolet and violet region (usually 340 370 nm) of the electromagnetic… …   Wikipedia

  • dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… …   Universalium

  • soap and detergent — ▪ chemical compound Introduction       substances that, when dissolved in water, possess the ability to remove dirt (detergent) from surfaces such as the human skin, textiles, and other solids. The seemingly simple process of cleaning a soiled… …   Universalium

  • Antidepressant — Fluoxetine (Prozac), an SSRI The chemical structure of …   Wikipedia

  • Camouflage — This article is about protective coloration. For other uses, see Camouflage (disambiguation). Further information: Theory of camouflage A flounder blending in with the gravel on the sea floor. Camouflage is a method of crypsis (hiding). It allows …   Wikipedia

  • Dye — For other uses, see Dye (disambiguation). Yarn drying after being dyed in the early American tradition, at Conner Prairie living history museum. A dye is a colored substance that has an affinity to the substrate to which it …   Wikipedia

  • Invisible ink — Invisible ink, also known as security ink, is a substance used for writing, which is invisible either on application or soon thereafter, and which later on can be made visible by some means. Invisible ink is one form of steganography, and it has… …   Wikipedia

  • Metamerism (color) — This article is about metamerism as it relates to colorimetry. For other meanings see the disambiguation page. In colorimetry, metamerism is the matching of apparent color of objects with different spectral power distributions. Colors that match… …   Wikipedia

  • Detergent — For the band, see The Detergents. Detergents A detergent is a surfactant or a mixture of surfactants with cleaning properties in dilute solutions. [1] In common usage, detergent refers to alkylbenzenesulfonates, a family of compounds that are… …   Wikipedia

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