What is the Yellowing - What is yellowing??

A defect in the appearance of paper or other materials characterised by a gradual change in colour most commonly involving yellow or brown hues forming Yellowing may occur when a label is exposed to sunlight or UV light for extended periods of time it is also a natural effect of the passage of time

Glossary

Discolouration - What is discolouration?

Definition of DISCOLOURATION:

A defect in the appearance of paper or other materials characterised by a change in colour. Discolouration can be caused by any number of environmental factors (including humidity, sunlight, temperature, or air quality) or as a natural result of the passage of time. Usually discolouration results in a duller or more faded appearance.

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