Frequently Asked Questions: Preservation

Comic books are modern publications, the earliest of which are from the 19th century industrial era when machine-made, wood pulp paper had already become the dominant paper product. Due to the inherent chemical instabilities of wood pulp papers and the late development of U.S. paper standards (in the 1980s), many comic book collections contain acidic books. The most effective and economical preservation measures are preventive: proper storage, storage environment, and handling.

Take proper care when handling comic books by:

• Having clean hands and a clean area to use the comic book
• Keeping food and drink away
• Not opening the book more than 180 degrees; never folding the book back on itself
• Not using paper clips, "dog ear" folding, or acidic inserts to bookmark pages
• Not using rubber bands, self-adhesive tape, and/or glue on comic books

Good storage is especially critical to the preservation of acidic paper materials. Guidelines for good storage:

• A cool (room temperature or below), relatively dry (about 35% relative humidity), clean, and stable environment (avoid attics, basements, and other locations with high risk of leaks and environmental extremes)
• Minimal exposure to all kinds of light; no exposure to direct or intense light
• Distance from radiators and vents
• Supportive protective enclosures

Supportive protective enclosures include: acid- and lignin-free folders, four-flap folders, document "preservation binders," envelopes, and document boxes (all available alkaline buffered or neutral pH); and polyester film sleeves that are stiff enough to adequately support the comic book within. Alkaline buffered storage materials provide a desirable neutralizing effect on acids in paper, but be aware that some inks may be sensitive to alkaline pH. Polyester film has the benefit of being clear but does not contain an alkaline buffer and with little friction readily produces an electrostatic charge that can lift paper crumbs from embrittled comic books.