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lightfastness
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The answer LIGHTFASTNESS has 0 possible clue(s) in existing crosswords.
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The word LIGHTFASTNESS is VALID in some board games. Check LIGHTFASTNESS in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of lightfastness in various dictionaries:
LIGHTFASTNESS - Lightfastness is a property of a colourant such as dye or pigment that describes how resistant to fading it is when exposed to light. Dyes and pigmen...
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| The quality of being lightfast. |
| Lightfastness description |
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Lightfastness is a property of a colourant such as dye or pigment that describes how resistant to fading it is when exposed to light. Dyes and pigments are used for example for dyeing of fabrics, plastics or other materials and manufacturing paints or printing inks. * The bleaching of the color is caused by the impact of electromagnetic radiation in the chemical structure of the molecules giving the color of the subject. The part of a molecule responsible for its color is called the chromophore.Light encountering a painted surface can either alter or break the chemical bonds of the pigment, causing the colors to bleach or change in a process known as photodegradation. Materials that resist this effect are said to be lightfast. The electromagnetic spectrum of the sun contains wavelengths from gamma waves to radio waves. The high energy of ultraviolet radiation in particular accelerates the fading of the dye.The photon energy of UVA-radiation which is not absorbed by atmospheric ozone exc |