Identification method of heat-sensitive cashier paper: first look at the appearance of the paper, good quality of heat-sensitive cashier paper with uniform hair color, good smoothness, high whiteness, a little greenish. If the paper is very white, the paper protective coating and thermal coating is unreasonable, adding too much phosphor, if the paper is not smooth or looks uneven.

Then the paper coating is not uniform, if the paper looks very reflective light, but also added too much phosphor. Secondly, the paper is baked by fire and heated by fire on the back of the paper. If the color on the paper is brown, the heat-sensitive formula is not reasonable and the storage time may be shorter. If the black part of the paper has fine stripes or uneven color blocks, the coating is not uniform.

The better quality paper should be dark green after heating, and the color block is uniform, gradually fading from the center to the surrounding color. The common cashier paper consists of three kinds of heat sensitive paper, ordinary double adhesive tape and carbon paper. The general specifications of heat sensitive silver paper are:

57x50, 57x60, 57 x80, 75x50, 75x60, 75x80, 80x50, 80x60, 80x80, 80 x140, etc. Common specifications of double adhesive paper are: 44x40, 57x60, 70x60, 75x60, 75x80, 76x80, 82x80, etc. The common specifications of carbon-free cash paper are: 57x40 double-layer, 57x60 double-layer, 75x60 double-layer, 75x60 three-layer, 241x100 double-layer, 241x100 three-layer, etc.