How Carbonless Paper Works

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To begin with, let’s take a moment to understand what is meant by the term “carbonless”. Before carbonless paper was invented, multi-part forms consisted of sheets of regular paper with jet black sheets of thin, tissue-like carbon paper in between them – this sort of form is often referred to as being “carbon interleaved”. The user would write (or impact print) on the front of the form, and the pressure from the writing or printing would cause the carbon between each sheet to image the subsequent parts, basically transferring the carbon from each carbon sheet to the piece of paper beneath it. Though very common, these forms could be extremely messy, often causing users to get a lot of the black carbon on their fingers, and on anything else they touched after that. In addition, when the forms were done being printed and the carbon sheets were removed and thrown away, people could read whatever had been printed on the forms by looking at the discarded carbon paper, making security an issue on certain types of forms.

Laser Carbonless NCR Paper - How Carbonless Paper Works

Then, in 1954, came carbonless paper, which worked a little differently than its carbon interleaved predecessor. Carbonless paper works like this: the paper is coated with two different types of chemicals, CF, or Coated Front, and CB, or Coated Back. These chemicals are held in tiny capsules, and are released when the capsules are burst by the pressure from a printer or a pen. When the CF and CB chemicals react with one another, the CF chemicals darken, causing an image to appear on the CF side of the sheet. One easy way to tell that the CF and CB chemicals are indeed different is that when you write on a carbonless form, only the front of each sheet images, but there is no image on the back of any of the sheets. This image is created, of course, without the use of the carbon sheet, hence the term “carbonless paper.”

The only real difference between Traditional Carbonless Paper and Carbonless Laser Paper is the chemicals in the older kind are harmful to laser printers, and can cause premature wear to the rollers, drums and other printer components. Laser Carbonless Paper, on the other hand, is designed specifically for use in laser printers and digital copiers, and its imaging capsules are not solvent based and cause no damage to the components of the printer.

Click here for samples of our laser Carbonless Paper.

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