Imprinting of indicator labels for sterilization

Initial Situation

Clinics have to prove the sterilization of surgical cutlery. To do so, they use neutral indicator labels imprinted with variable information and bar codes by using thermal transfer printing. A certain color point on this label has to permanently discolor under sterilization conditions.


The thermal transfer print was not wiping resistant since an inappropriate ribbon has been used. It was not able to withstand these high temperatures. The problem was reinforced by the fact that the surgical cutlery cools down merely slowly

Solution proposed by alpharoll

alpharoll has tested the printing results of selected thermal transfer ribbons on indicator labels in its own laboratory. The spcial ribbon Forte H41 has been proven to be the best solution during these tests. It has shown a very good durability at strong heat and steam exposure over a long period of time.

alpharoll SARL

7, rue Verdier Monetti
F-76880 Arques La Bataille