Carbon paper (initially carbon paper ) was originally paper coated on one side with a dry ink layer or a pigmented layer, bonded with wax, used to make one or more copies together with original document creation when using a typewriter or ballpoint pen. Making carbon paper was once the largest consumer of wax montan. In 1954, Columbia Ribbon & amp; The Carbon Manufacturing Company filed a patent for what is known in the trade as a solvent carbon paper: modified coatings from candle-based to polymer-based. The manufacturing process is changed from the hot-melt method to a coating applied by a solvent or a series of coatings. It was then possible to use polyester or other plastic film as a substrate, not paper, although the name remains a carbon paper.
Video Carbon paper
History
In 1801, Pellegrino Turri, an Italian inventor, invented carbon paper to provide ink for his mechanical typewriter, one of the first typewriters. Ralph Wedgwood obtained the first patent for carbon paper in 1806.
Carbon papers are the basic medium of reproduction for samizdat, a method of publication used in the former Soviet Union to publish books without having to use state-controlled printing and the risk of censorship or imprisonment that was common at the time.
Although the use of carbon paper has been virtually nonexistent, its previously widespread inheritance remains in the email header, where the abbreviation "cc" means "carbon copy", a copy intended for a recipient other than the primary recipient.
Maps Carbon paper
Fuel cell applications
Carbon papers are also used in fuel cell applications. This type of carbon paper, however, has nothing to do with the carbon paper used to copy the text. It consists of carbon microfibers that are produced into flat sheets. It is used to assist as an electrode which facilitates the diffusion of the reagent in the capped part of the catalyst membrane of the membrane electrode assembly.
Other uses
The appearance of word processors and the decline in typing means that the number of copies of documents can be printed on demand, and the reduction of carbon papers, partially replaced by photocopies and copier papers without carbon, becomes irrevocable. There are some specialists or remnants left. An example is a receipt at the point of sale (although most have been delegated into backup when electronic POS devices fail) or for on-site instantaneous notices, duplicate checks, and some money orders (though the United States Postal Service) were recently converted to electronic format ), and tracking slips for accelerated mail services require multiple copies. In India, form filling is on a sufficient scale that carbon paper is still widely used. In 2013, in Canada only one company of eight people still produce carbon paper, in the UK one company and in the United States only two small companies.
There are several experimental uses of carbon paper in art (as a surface for painting) and letter art (to decorate envelopes). Carbon papers are generally used to transfer patterns to glass in the creation of stained glass.
The carbon paper disks are still used in the school physics laboratory as part of experiments on motion or projectile positions, speed, and acceleration.
See also
- Copies of carbon
- Non-carbon copying paper
- List of duplicates
References
External links
- Carbon Paper Used in Fuel Cell
- Fun Carbon Paper History!
- How Carbon Made Paper
Source of the article : Wikipedia
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