What is the UV Light - What is UV light??

UV Ultraviolet light is a form of electromagnetic radiation It has a wavelength shorter than that of visible light which makes it invisible to the naked eye although it can be detected via its effects on various substances It is named ultraviolet beyond violet because it is located just beyond violet on the electromagnetic spectrum Ultraviolet radiation has the ability to alter chemical bonds in molecules which can cause chemical reactions and it also causes many substances to fluoresce or glow Common effects of exposure to UV light include the degradation of polymers pigments and dyes UV radiation degrades the chain structure of polymers which can cause a loss of strength and can result in discolouration and cracking It is also absorbed by many pigments and dyes which can cause them to change colour UV light is found naturally in sunlight and is also emitted by man-made sources including tanning booths black lights curing lamps mercury lamps halogen lights discharge lamps fluorescent and incandescent lights electric arcs used in welders and plasma torches and UV lasers

Glossary

UV Resistance - What is UV resistance?

Definition of UV RESISTANCE:

A property of materials that allows them to withstand extensive exposure to UV light without being damaged. The UV resistance of materials can be improved by adding a UV absorber, inhibitor, or stabiliser; these additives are chemical compounds that are added to materials (usually polymers) in order to absorb UV light and dissipate its energy as low level heat.

In labelling, UV resistance is an important requirement for face materials, coatings, and toners or inks that are to be used to produce labels that will be exposed to UV light, such as labels that will be used outdoors.

Waterproofing foils on a roof, which are reinforced with UV resistant polyester mesh to provide protection against UV light from the sun. Labels intended for outdoor applications should have high UV resistance.

Here is the Harvard-style citation to use if you would like to reference this definition of the term UV resistance:
Label Planet (2020) What is UV resistance? | UV Resistance Definition. Available at: https://www.labelplanet.co.uk/glossary/uv-resistance/ (Accessed: January 1, 2024).

Go Back to Glossary