Hazard source c receipt

Hazard source C receipt

Bisphenol S (BPS) or 4,4′-sulfonyl diphenol. Image: Bernd Schroder

Previously used in thermal paper bisphenol A should be replaced, but many alternatives already used have so far been explored

Thermal paper contains potentially toxic additives such as bisphenol A (BPA), which usually serve as color developers for the printing process. Since BPA as a hormone-active substance of the hormone system can cause the health to malfunction, today Oopters are used structurally similar connections as a replacement, such as bisphenol S (BPS), D-8 and Pergafast 201. Until BPS, however, is little known about the dissemination and toxicological effects of these alternatives.

Bisphenol A (Environmental Hormones: Only a modern myth?) In the past, in the debate for endocrine disruptors had always taken care of for headlines; Its use in the production of consumer products has advised the discussion. At the end of December 2016, the Member States of the Member States of the European Chemicals Agency (ECHA) set the connection because of their toxicity to the reproduction as a particularly worrying substance (SVHC) on the REACH candidate list.

Due to its use in polycarbonates and epoxy resins, food packaging and plastic bottles are considered main sources for human stress with BPA. In the EU, production and sale of baby bottles made of BPA-containing polycarbonate are therefore prohibited since 2011. Recently, other potential exposure sources are considered, one of them: thermal paper.

Hazard source C receipt

TGSA. Image: Bernd Schroder

BPA is housed as a developer in the thermosensitive layer of thermal paper. At thermal printing, the BPA forms the print image with the color former also on the paper. Since BPA is in the paper as an unbound monomer, it is easily released into the environment. The handling of thermal paper products such as cash desucication was therefore proposed as a potential, non-negligible source for human BPA exposure, the recording path: over the skin.

In 2016, the European Commission has finally proposed in a change of change to REACH to set an upper limit of 200 milligrams BPA per kilogram of thermal paper. The regulation enters into force in early 2020.

Fast, BPA alternatives were searched and found, and it is expected that their use will increase greatly. In this sense, the messages can not be an all-clear from the involved exchange of BPA on the cash registers. Because there is still little known about the toxicological effect of the substitutes used, and the exact composition is often trade secret. Due to their structural unions, the substances can basically have a similar toxicological behavior such as BPA.

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