So First What is BPA ?
BPA is a mass-produced industrial chemical used primarily to make polycarbonate plastics and epoxy resins.
The coatings on direct thermal products contain a small amount of phenol-based coreactants, either BPA or diphenyl sulfones, that react with heat to produce the image on paper.
55g 80*80mm of thermal register rolls is the top quality of paper . It usually use for the POS machines for the supermarket or for the Bank.
This Thermal Paper fits following machines:
Epson M129B, Epson M129C, Epson TM-H2000
Citizen CBM1000, CBM230, CBM231
NCR 7156, NCR 7158, NCR 7167, NCR 7193
Star Micronics SCP700, Star TSP300 Series
Axiohm 7156, 7193, 7196, A715
http://www.mykeyingroup.com/product/80-80mm-fsc-certified-thermal-paper-rolls.html