Rarities Because overexposure to light can discolor paper and cause images to fade, museums tend to keep drawings in storage and limit their exhibition time.
And since rubber cement can, over time, lose its adhesion and discolor paper, she was advised to switch to archival glue.
When lignin is in contact with oxygen, a highly reactive chemical, the reaction changes the way the fibers reflect light, discoloring the paper.
An acidic chemical reaction is produced which turns the paper brittle and discolored".
If the parchment paper and/or fabric starts to become discolored, remove the iron immediately!
This will help preserve your diary entries and sketches for years to come; whereas paper with acidic properties may deteriorate or become discolored over time.
Her teeth looked discolored.
Photo inkjet paper is generally coated to prevent the printer ink from soaking into its base, which would create a blurry and discolored photo.
Her leg became discolored, swollen, and putrid.
