Looking through the window of an industrial printhead, I can be impressed by the beauty of thermal transfer ribbons. The interaction of heat and polymer makes me shiver. Having worked as an engineer of self-adhesive solutions at VIZLENT 15 years, I have observed that B2B label converters are often interested in this exact transfer of chemical.
Microscopic resistors generate lots of heat, which immediately melts a special ink, typically either wax or hardened resin, on a thin layer of polyester film. The molten paint is then permanently fixed on the high grade synthetic sticker paper creating a strong bond with the paper that will not be easily broken even in the most extreme conditions. I am angry when printing houses put the wrong temperature settings, because the ribbon is scalded, and a perfect lot is ruined. This outstanding thermal symbiosis is really needed to convert plain facestock to a durable, scuff-resistant barcode.
How do you load a thermal transfer ribbon?
Making my way around the workspace of a high-speed printer offers a concentrated state of mind that has remained with me in the 15 years of my employment at VIZLENT working with thin pellicles. The ink-bearing web has to be threaded with a lot of accuracy in order to prevent wrinkling when the production process is fast.
The supply spindle should be secured first and the carbon-coated surface must be placed in contact with the substrate, it is fatal to blend them. After attaching a roll to the primary back mandrel, direct the leader through the printhead assembly. And do not touch the sensitive heating elements with bare hands. By correctly fitting the ribbon on the take-up core, the B2B printers and label converters will have a smooth run. Lastly, the tension on the lateral must be fined-tuned; one wrong move and the job is destroyed and I do not want to disappoint my customers.
Does thermal transfer require ribbon?
Of course a ribbon is necessary. Having worked in the field of self-adhesive technology at VIZLENT with 15 years of research, I observe the confusion that people have with thermal transfer and direct thermal printing. The most important part is the ribbon, without it the printhead will just burn air. This process involves the melting of a wax or resin pellicle on the ribbon and on the facestock. In the absence of that ribbon, there will be no pigment transfer and nothing will be left on the label. It is an honor to see a clean, hardy barcode, which is created in this process. The operation cannot be operated without the ribbon, it is an inevitable fact of thermal transfer printing.
What is the difference between direct thermal and thermal transfer ribbon?
In brief, the essence of the disparity depends completely on the existence of an intermediate carrier of ink!Direct thermal is based only on a chemically treated substrate which becomes darker as it is heated by the printhead. Oh, such labels, it truly breaks my researcher heart, to see them wither away in oblivion with the very touch of sunshine or friction– such a nightmare to long-term inventory tracking!On the other hand, thermal transfer printing involves the use of a heat-sensitive ribbon to print liquefied colorant be it wax or resin onto the face stock. Having 15 years of experience in the field of self-adhesive and labeling I can guarantee our fastidious printing houses and wholesalers that this ribbon-based process forms an indefeasible, lasting attachment.
