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Materials Preservation Information

Introduction
Paper Preservation
Storage Conditions and Paper Materials
Actions to Avoid

Introduction

Here are some actions that may be implemented to prolong the life of fragile papers.  Preservation steps such as washing, de-acidification, repair of torn sheets, rebinding, fumigation or disaster recovery require professional attention.

If your paper disintegration has become too advanced for restoration, preservation, or routine physical handling, microfilming is a possible alternative for retaining the content of the papers.

If you have questions, please contact the Special Collections staff at (719) 531-6333 ext. 2253. 

Paper Preservation:

All papers, regardless of the materials from which they are made, will deteriorate with age, even when conditions are ideal. Such deterioration can only be minimized or, at best, retarded.

Storage Conditions and Paper Materials:

Temperature:
Ideal temperature is 60-70 degrees Fahrenheit with little or no fluctuation. Below 60 degrees there is a tendency for moisture to condense Above 70 degrees paper will become, over a period of time, dry and brittle.

Humidity:
Ideal relative humidity (R.H.) is 30-45 percent. Too high humidity will encourage vermin and mold growth. Too low humidity will cause paper to become dry and brittle. Fluctuations in humidity should be kept to a minimum to prevent the swelling/shrinking of materials.

Light:
Visible light, either natural or artificial, bleaches ink, colors and covers. Prolonged exposure to ultraviolet light cause paper to become brittle and lose its strength. If items cannot be stored in darkened or dimmed area, use only incandescent lighting or specially filtered fluorescent lamps.

Storage:
Generally it is better to place an item flat to prevent stress on bindings and paper.

Handling:
Keep handling to a minimum.

Actions to Avoid:

  • Use of Scotch tape or other pressure sensitive tapes as these can stain and oxidize paper.
  • Wrapping the items in highly acidic paper as this can attract vermin and accelerates acidification of good paper by contact. A good quality acid-free paper or container should be used.
  • Sealing items in plastic except for inert polyester sheets or sleeves. Do not laminate papers; lamination is irreversible. Even placing papers between sheets of plastic is not recommended except for polyester sheets.
  • Storing in an area where there is danger of fire, flood or theft.
  • Storing in an area where lack of housekeeping will provide a climate for vermin growth such as in an attic or garage. Vermin are attracted by damp, food, dark, and poor air circulation. Vermin must be controlled or they will do irreparable damage.
  • Photocopying. This can place extreme stress on books and other materials. When photocopying, use great care !
  • Storing material folded. It is much wiser to unfold all items. However, it the item is too brittle to be opened or unfolded easily, then consult a conservator on the Local History staff.
  • Storing materials that will rust or discolor the paper. Stainless steel pins or staples should replace old pins, staples and other paper clips. Also remove strings and rubber bands.
  • Placing newspaper clippings with other papers. Acid-free paper or polyester sheets should be used as a separator.
  • Storing in air tight containers. Air circulation is necessary for preservation.
  • Storing in an area where air pollution is excessive, such as garages. Atmospheric contamination is a major cause of chemical degradation resulting in paper becoming discolored, fragile, and brittle. If air-filtered storage is available, the effects of pollution can be lessened.


Pikes Peak Library District
P.O. Box 1579
Colorado Springs, CO 80901
(719) 531-6333
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