The carbon belt can be divided into inner carbon and outer carbon from the winding way. The inner carbon refers to the axis of the carbon belt and the side with printer ink contact, and the outer carbon refers to the side without ink of the printer and the axis contact. General bar code printers can use internal carbon and external carbon, only individual printers can be fixed to use only one of them.

From the use of printer printing head carbon belt is also divided into flat pressure type carbon belt and side pressure type carbon belt, respectively suitable for flat pressure type printer and side pressure type printer. And you can't use these two bands together

Working principle of carbon belt is on thermal transfer printer carbon belt, heat resistant coatings with direct contact heat transfer, thermal transfer printing ink and printing substrates (tag), direct contact thermal transfer work of instantaneous heat, heat through heat transmitted to the thermal transfer printing ink coating, coating and the basement membrane ink was printed on the substrates by the melting, forming words and patterns. If it is a high quality ribbon, it can be transferred after the heat part of the heat transfer ink residue.

The most commonly used length is 300 meters. Other lengths are 90 meters, 450 meters and 600 meters, etc., which can be customized to the manufacturer. When choosing carbon tape, we should consider the material of the printer and self-adhesive label. If there is no good coordination, the printed effect may not be ideal. And in the selection of carbon belt, the general choice of carbon belt width will be slightly wider than the label, because it can protect the printer print head. For example, when we print 80mm wide labels, we usually choose 85 or 90 mm wide carbon tape.

Now we have a detailed understanding of the chemical composition (material) of the carbon belt, which is divided into three types:

1. Carbon belt with wax base ratio of more than 70% -- wax base carbon belt.

2, wax base and resin base proportion of 50% each carbon belt - mixed base carbon belt.

3. Carbon belt containing more than 50% of resin base -- resin base carbon belt.

Wax-based carbon tape has the characteristics of high sensitivity, high resolution and high density, such as ordinary paper, coated paper, coarse paper, smooth paper, coated paper, synthetic paper and so on. Mixed base carbon tape has stain resistance, high definition, high speed printing, suitable for all kinds of labels, such as coated paper, smooth paper, coated paper, synthetic paper, PET, PVC material, etc. The resin based carbon tape has high quality scratch resistance, heat resistance, solvent resistance, high resolution and other characteristics, especially suitable for all kinds of polyester and plastic labels, such as synthetic paper, PVC, PET, water labels, etc..

Finally, the price of carbon belts. The price of carbon belts is calculated in terms of area, usually in square meters. Of the three types of carbon strips, waxy carbon strips have the lowest price and resin-based carbon strips have the highest price. The area of a carbon band can generally be calculated by multiplying the width of the carbon band by its length. If you are not familiar with carbon belts, it is best to ask your supplier for more information or advice to reduce costs as much as possible.