Gutenberg couldn’t take a document that already existed, feed it into his printing press and run off facsimiles. Printing with moveable type was not copying, however. Until Johann Gutenberg invented the printing press in the mid-1400s, producing a book in an edition of more than one generally meant writing it out again. It made ideas permanent, portable and endlessly reproducible. Writing freed copying from the chain of living contact. When the Sumerians transposed spoken words into stylus marks on clay tablets more than 5,000 years ago, they hugely extended the human network that language had created. The second great copying machine was writing. The oldest copier invented by people is language, by which an idea of yours becomes an idea of mine. However, it still needs to be handled carefully and protected from damage.Copying is the engine of civilization: culture is behavior duplicated. Nowadays, copy carbon paper without carbon is more convenient and doesn't require additional carbon paper. In the past, blue carbonless paper was prone to smudging and required a lot of pressure to transfer the writing to the lower sheets. It is also available in roll or sheet formats.Įven carbon copy sheets are constantly being improved upon. ![]() Carbonless paper without carbon comes in five colors: red, yellow, green, blue, and white and different visible colors, such as blue, yellow, orange, black, and red. The pressure from writing or printing can break the microcapsules, causing the colorless dye solution to flow out and react with the colorant, forming a visible image. The color developing agent is a special colorless dye that can dissolve in non-volatile carrier oil. The CF layer contains a colorant, while the CB layer contains a color developing agent. It is mainly used for multi-part forms, receipts, continuous financial vouchers, general business vouchers, etc.Ĭopy carbon paper without carbon is coated with two layers. When the pressure on the microcapsules causes the force-sensitive pigment and oil solution to overflow and come into contact with the colorant, a chemical reaction causes the pigment to appear and the carbon copy sheets to copy the text. Nowadays, official documents with legal implications, including invoices, contracts, and agreements, are printed on carbonless paper without carbon.Ĭopy carbon paper without carbon is a type of invisible carbon copy sheets with the ability to directly copy and display text. However, carbon copy paper sheets without carbon is bound with special paper. For traditional receipts that only use ordinary paper, an additional carbon layer must be inserted underneath the document in order to produce a copy. It allows you to write on the top layer without a carbon layer to transfer the writing. Deli has quality office paper wholesale, if you have such needs, you can contact us.Ĭopy carbon paper without carbon is a novel type of carbon copy paper sheets. Carbonless paper can be overlaid with several sheets and is typically used for documents and receipts. ![]() When the paper is overlaid and pressed, the microcapsules break, causing the dye to come into contact with the acid and create an image. The surface of carbon copy sheets is coated with an acid colorant, while the back is coated with an invisible colorless dye. Therefore, while carbon copy paper sheets is very versatile, it is most suitable for archival purposes. If you attempt to use a lighter on carbon copy paper sheets, the paper will quickly change color. As the pen moves across the paper, it produces friction and generates heat, causing the paper to turn black. When exposed to high temperatures, it will turn black. To use carbon copy sheets, simply insert it between two sheets of paper, write on the top sheet, and the writing will be transferred onto the carbonless paper below.Ĭopy carbon paper contains chemicals that are temperature-sensitive. Nowadays, with the advancement of printing and copying technologies, carbon copy sheets are primarily used for writing invoices or receipts. Carbon copy sheets are generally used for writing two copies of a document, which were inefficient before the development of printing and photocopying technologies.
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