At 06:37 AM 2/17/04 -0500, David H. Bailey wrote: >Paper with acid content yellows with age and crumbles (think of the old >mass market paperbacks or photographs from the 50s, where often the >simple act of turning the page breaks it in half). > >Acid-free paper lasts far longer and remains more supple over its life. > >Archival quality paper is supposed to last even longer, and costs >appropriately more.
There's also the question of toner durability. This from http://www.naa.gov.au/recordkeeping/rkpubs/advices/advice37.html Practical recommendations The durability of photocopied and laser-printed documents depends largely on the quality of the paper used, as well as the degree to which the paper and toner adhere after processing. Toners composed of stable resin materials and a stable pigment such as carbon black are capable of strong bonding to the paper surface. Copies using these toners and printed onto permanent or archival quality paper can be considered permanent and suitable for long-term storage. Do not stack or weight dry toner images at high temperatures. Do not place them in direct contact with PVC as this makes the toner sticky and capable of transferring to adjacent surfaces (polyester or polypropylene film is safe). Copy machines should be maintained regularly by qualified technicians to ensure that they are operating at the correct temperature to fuse the toner. There is sufficient evidence that colour xerographed images do not last as long as black and white copies. Most international archival institutions do not recommend the permanent or long-term storage of colour photocopied or laser-printed material. Maximise the life of colour photocopies and laser-printed copies by storing them in the correct environment and minimising exposure to light. Do not flex or fold full-colour dry toner copies as the print layer is thicker and may crack under deformation. Store colour liquid-toner copies away from all light sources to reduce fading effects. _______________________________________________ Finale mailing list [EMAIL PROTECTED] http://lists.shsu.edu/mailman/listinfo/finale
