In this one, I learned that archivists use the power of the sun to bleach works on paper:
It may look like fun-in-the-sun, or an excuse just to work outside, but light-bleaching is in fact, a treatment technique that is employed often by paper conservators and has been a standardized procedure used in the profession of conservation for at least 30 years.The technique utilizes exposure to light from the sun or from an artificial light source such as fluorescent lamps to reduce discoloration in paper while it is submerged in a bath of purified and buffered water.
No comments:
Post a Comment