Special printing paper for office use is classified according to the size and number of layers of the paper, such as 241-1, 241-2, which respectively represent 1 and 2 layers of narrow-line printing paper, and of course there are 3 layers and 4 layers. ; Commonly used wide-line printing paper and 381-1, 381-2 and so on. For example: 241-2 refers to carbonless printing paper (also called pressure sensitive paper). Can only print on a stylus printer. 241 stands for: 9.5 inches, which is the width of the paper. This type of paper is also called 80-column printing paper, that is to say, the normal font has 80 characters in one line. The main uses of these papers are: outbound/inbound orders, reports, receipts. Applicable to: banks, hospitals, etc.
Carbonless printing paper, also known as pressure sensitive printing paper, is composed of top paper (CB), middle paper (CFB) and bottom paper (CF). It uses the principle of chemical reaction between the color developing agent of the microcapsule and the acid clay in the color developing agent layer. During printing, the printing needle presses the paper surface to achieve the color development effect. The common and commonly used color layers are 2 to 6 layers.
When purchasing carbonless printing paper, pay attention to whether the outer packaging of the paper is damaged (if the outer packaging is damaged or deformed, it may cause the paper inside to develop color). Open the outer package and check whether the inner package has a certificate, whether the paper is damp, whether it is wrinkled, whether the color can meet the requirements you want (usually tear off a copy and write a few words on it in normal writing, Then look at the color rendering of the last layer). Confirm whether the specifications of the printing paper are what you need to avoid unnecessary waste and trouble.