Herma develops chemical free thermal printer labels

The new label stock was developed in partnership with Koehler Paper; its thermal paper Blue4est Pro has already been used to produce environment-friendly till receipts for some time. 

 

Labels made from the new material are simple to use in all conventional thermal printers. A further benefit lies in the multi-layer adhesive 62Dps used by Herma, which is migration-safe and approved for direct contact with dry, moist and fatty foodstuffs. With its multi-layer technology and low-migration properties 62Dps can be used in cool environments. The new label stock Hermatherm nature (900) was originated in partnership with Koehler Paper.  

 

Herma’s head of development Dr. Nicole Metzler, said: ‘Based on our experience in coating and die-cutting operations, Hermatherm nature (900) is just as easy to process as conventional thermal label stock.’ 

 

In addition, although it is a colored material, which inevitably reduces contrast, no barcode reading errors were recorded during a large-scale trial. Labels produced from the material completed the trial without prompting any faults whatsoever, the company said.  

 

The blue-grey thermal paper Blue4est Pro created in-house by Koehler Paper has already been used for environment-friendly retail till receipts for some time. With Blue4est Pro the imprint is not produced by a chemical reaction in response to the application of heat. Instead, an entirely physical reaction takes place in which an opaque active coating on the paper becomes transparent under the influence of heat. This reaction reveals the black coating underneath.  

 

Compared to commonplace, conventional thermal papers, the imprint Blue4est Pro produces is claimed to resist environmental influences, such as sunlight and moisture. According to Koehler Paper, the printed image remains legible for more than 35 years.