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Tattle-Tape is a security system used in
Tattle-Tape is a security system used in libraries
A library is a collection of materials, books or media that are accessible for use and not just for display purposes. A library provides physical (hard copies) or digital access (soft copies) materials, and may be a physical location or a vir ...
to prevent theft of library materials. The tape consists of a magnetic
Magnetism is the class of physical attributes that are mediated by a magnetic field, which refers to the capacity to induce attractive and repulsive phenomena in other entities. Electric currents and the magnetic moments of elementary particle ...
metal strip embedded in a strip of thick, clear adhesive tape. This tape is usually affixed deep between the pages of a paperback
A paperback (softcover, softback) book is one with a thick paper or paperboard cover, and often held together with adhesive, glue rather than stitch (textile arts), stitches or Staple (fastener), staples. In contrast, hardcover (hardback) book ...
book, or between the spine and binding for a hardcover
A hardcover, hard cover, or hardback (also known as hardbound, and sometimes as case-bound) book is one bound with rigid protective covers (typically of binder's board or heavy paperboard covered with buckram or other cloth, heavy paper, or occa ...
book. When the magnetic strip in the tape is sensitized, an alarm will sound when the item passes through a special gate, typically near the exit. Thus, the items require desensitization by library staff before being given to the library patron to leave. When the book is returned, the tape is re-sensitized by library staff.
Tattle-Tape was designed by 3M and was first used at the Saint Paul Public Library
The Saint Paul Public Library is a library system serving the residents of Saint Paul, Minnesota, in the United States. The library system includes a Central Library, twelve branch locations, and a bookmobile. It is a member of the Metropolitan ...
in 1970.
See also
*Electronic article surveillance
Electronic article surveillance is a technological method for preventing shoplifting from retail stores, pilferage of books from libraries or removal of properties from office buildings. Special tags are fixed to merchandise; these tags are remove ...
* Metglas
Metglas is a thin amorphous metal alloy ribbon produced by using rapid solidification process of approximately . This rapid solidification creates unique ferromagnetic properties that allows the ribbon to be magnetized and de-magnetized quickly an ...
References
{{3M 3M brands Crime prevention Library equipment