Glossary Terms
Glossary Terms



These are compiled from magazines, the WWW, and my local scrapbook store. I tried to include all the definitions I could find. What one place had, another had more...so I put them all together. Hope these make sense to you and are understandable.

SCRAPBOOKING TERMS

TERMDEFINITION
ACIDA chemical substance that can weaken paper and cloth, causing it to brown and become brittl
ACID-FREEMaterials that have a pH of 7 or higher. A piece of paper may be acid free immediately after manufacture, however, over time acid from the atmosphere or by contact with acid materials, may lead to the formation of acid if the paper is not treated with a buffering process.
ACID MIGRATION The transfer of acid from an acidic material to a less acidic or pH neutral material. This may occur directly, when the two material come in contact with one another.
ALKALINEAlkaline substances have a pH over 7.0. They may be added to a material to neutralize acids or as an alkaline reserve or buffer for the purpose of counteracting acids that may form in the future. A buffer may be added during the manufacturing or during the process of deacidification. While a number of chemicals may be used as buffers, the most common are magnesium carbonate and calcium carbonate.
ARCHIVALA non-technical term that suggests that a material is permanent, durable, or chemically stable. Usually means the material can safely be used for preservation purposes although there are no quantifiable standards that describe how long an archivally sound material will last.
BUFFEREDA process of adding alkaline substances to materials to counteract acids that may form in the future. The most common buffers used are magnesium carbonate and calcium carbonate.
DEACIDIFICATIONDeacidification is a common term for a chemical treatment that neutralizes acid in a material such as paper and deposits an alkaline buffer to counteract future acid attack. Deacidification technically refers only tot he neutralization of acid present at the time of treatment, not to the deposit of a buffer. For this reason, the term is being slowly replaced with the more accurate phrase "neutralization and alkalization". While deacidification increases the chemical stability of paper, it does not restore strength or flexibility to brittle materials.
DIE CUTA shape or letter cut from paper with a special die cutting machine. Accu-Cut and Ellison are best known for their die cutting machines.
ENCAPSULATIONThe process of placing a document (paper) between two sheets of transparent polyester film and sealing the sheets tegether. Encapsulation will protect your document from damage caused by handling, moisutre, contact with acidic material and harmful chemicals. Papers should be deacidified before encapsulation.
GROUNDWOOD PAPERS Papers made with mechanical pulp and characterized by high lignin content, high opacity, and high-speed printability. The pulp has relatively short fibers and the papers have a short lifespan.
JAPANESE PAPERS Especially thin and strong papers made in Japan from long fibers, such as mitsumata, gampi, and kozo (mulberry). They are largely handmade, the fibers pulped by hand; the lengths of the fibers gives the paper exceptional wear capability.
JOURNALINGAdding the who, what, where, when and why to photographs.
LAMINATIONA process of covering paper with thin, translucent plastic. Many forms of lamination are considered unacceptable as conservation methods due to the high heat and pressure used during application.
LIGHTFASTPaper, ink, or dye color which is resistant to change from aging or from exposure to light, heat, or other adverse conditions. Also called color fast or fade resistant.
LIGNINA substance found naturally in the cell walls of plants. Lignin is largely responsible for the strength and rigidy of plants, but its presence in paper is believed to contribute to chemical degration.
MUSEUM BOARD/PAPER (Also Conservation Board/Paper)A term generally used to mean the same as permanent paper or board.
NEUTRALHaving a pH of 7; neight acid nor alkaline.
PERMANENT PAPERPaper made to resist the effects of aging to a greater degree than is usual than other papers. Usually acid-free, such paper is used for archival or other purposes.
pHA measure of acidity or alkalinity.
The Ph scale runs from 0 to 14
Seven is considered Neutral
Numbers below 7 indicate increasing acidity; the lower the pH, the more acidic the paper
Numbers above 7 indicate increasing alkalinity; the higher the pH, the more aklaline the paper
Paper with a pH of 5 is ten times more acidic than one with a pH of 6
Paper with a pH below 5 is considered highly acidic and should not be used in scrapbooks
PERMANENTAbility of a material to resist chemical deterioration
POLYESTERA common name for the plastic polyethylene terephthalate. Its characteristics include transparency, colorlessness, and strength. It used in photo preservation because it is chemically quite stable. Common trade names are Mylar� by DuPont and Mellinex� by ICI.
POLYETHYLENEA chemically stable, transparent plastic used in made photographic preservation materials.
POLYVINYL CHLORIDE(PVC)A plastic which is not very stable and can emit hydrochloric acid which will damage photographs.
RAG BOARD/RAG PAPERS Boards or papers made with non-wood products, such as cotton linters or cotton, which are naturally lignin free, stable and durable.
WOOD PULP






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