Thermal printing or direct thermal printing has been the digital printing procedure that makes the printed image and thermal print name tags thru selective heating of the thermal paper or the coated thermochromic paper, as it is usually identified when a paper passes above a thermal print head. A coating turned black in the places where it is being heated, making an image. The 2-color direct thermal printer may be able to print both the black and the added color that is usually red through applying heat in the two different temperatures.
The thermal transfer printing has been a very different system that uses the heat-sensitive ribbon and not of the heat-sensitive paper, however, it uses the same thermal print heads.
The thermal printer comprises the key components:
- Platen -the rubber roller is the one that feeds the paper.
- Spring – it applies pressure into the thermal head that causes it to a contact in the thermosensitive paper.
- Thermal head – it generates heat and also prints on paper.
In order that you can print the thermo-sensitive kind of paper, you need to insert in between a thermal head with the platen. A printer sends the electric current into the heating compounds of a thermal head that generates heat. The heat triggers the thermo-sensitive colored layer of a thermosensitive paper that alters the color where it is heated. Such the printing mechanism is identified as the thermal system or the direct system. These heating elements are normally arranged as the line of tiny closely spaced dots.
A paper is being impregnated with the solid-state combination of the dye and the fitted matrix; a mixture of the fluoran leuco colored and the octadecyl phosphonic acid will be the example. When the mold is heated over its melting point, a color will react with the acid, move to the colored form, and to the changed shape is then conserved, is the metastable state if a matrix solidified back rapidly enough (a procedure will then be called as the thermochromism).
Uses of the TT printers in the business include:
The barcode labels as the labels printed with the thermal printer seemed not to last that long and the marking of clothing labels like the shirt size and a lot more. The label printers are with paper, metal labels, and plastic materials. The barcode printers normally come in with fixed sizes of 8, 6, and 4 inches (or 200, 150 or 100 mm) wide. Even though the number of makers had made altering sizes from the past, most have now the uniform on these sizes. Its major application for the printers is to make barcode labels for shipping and for product identification.
Thermal-transfer printing procedure
The thermal-transfer printing has been done through melting wax in the printing heads of the specialized printer. This thermal-transfer print procedure for the thermal print name tags utilizes the three main components and these are:
- Non-movable print heads
- Carbon ribbon or the ink
- The substrate to be printed