Durchschreibepapier, also blue paper or carbon paper mentioned, is used, in order to make from documents such as letters or forms at the same time a copy. In addition one used in former times carbon paper, which was put between the original and a further (usually thinner) sheet (the copy). Also several copies were possible, whereby before each further copy again a carbon paper had to be put. Corrections were very complex, since they were to be implemented on each sheet individually. It had to be paid attention therefore far more to care for correct letter (usually on the typewriter).

Usually black carbon papers were used for typewriter copies, blue for hand written copies.

Today char-free Durchschreibepapiere is usually attached to the forms. These papers e.g. contain a layer with a firm acid and over it a second layer with small caps, which are stored in a bonding agent on their surface. These caps with a diameter of 10 micrometers contain e.g. colorless Kristallviolettlacton, which, after bursting the caps with the pressure of the recorder, on which under it lying layer flows. The blue-violet Triphenylmethanfarbstoff forms and thus comes the writing on the copying paper.

From the English expression for carbon paper, carbon CoPy, comes today also the abbreviation CC usual in E-Mail traffic.

Who did not invent the carbon paper is well-known. In the year 1806 a patent was assigned to the Englishman Ralph Wedgwood for an apparatus for the duplication of documents, with which the carbon paper was meant. Production began it some years later.

Related links

• Information and communication in history and present (little info. to the topic)
• Last manufacturer of Durchschreibepapier in Europe

Articles in category "Durchschreibepapier"

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• IBFshop - B
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