The Basics of Thermal Transfer and Direct Transfer Labels

Thermal transfer printers are used to make bar codes,time which is not ideal for a lifetime product. It is an
price tags and other labels. The process of thermaleffective process for receipts, shipping labels and
transfer label printing involves the use of heat totickets, however.
register and impression into paper. The printhead of theThermal transfer printing utilizes a thermal printhead
thermal printer has many resistive heating pins whichwhich is pressed onto a ribbon which then melts ink
melt ink into paper on contact.into the label material. Then, the ink actually absorbs
The two types of thermal printing are direct thermalinto the label material and is set permanently. So, the
and thermal transfer. The method of thermal transferthermal transfer printing process and the resulting
printing utilizes a heated ribbon to print images on manylabels have more longevity and durability.
different materials. Conversely, in direct thermal printing,In thermal label printing, a thermal printhead applies heat
no ribbon is used, and the image is printed right on theto a ribbon, which melts ink onto the material to form
label material.the image. The ink is absorbed so that the image
Direct thermal printing uses heat-sensitive andbecomes part of the media. This technique provides
chemically treated media. That media blackens in colorimage quality and durability that is unmatched by other
when it is pressed under a print head, and there is noon-demand printing technologies. This type of label is
ink or toner involved. This means direct thermal printinguseful for: product identification, circuit board labeling,
is largely more affordable and portable. The drawbackasset tagging, inventory identification and certifications
to a direct thermal label is the possibility of fading overlike UL/CSA.