by my lab experience there is no compatibility printing a polyester based ink on polycarbonate substrates, cracks occurs after drying step.
any chance to add an additive (wetting agent, plasticizer, ...) to makes PE-ink compatible with PC-substrate?
BR
MM
Hi,
Polycarbonate shows resistant toward many polymer based inks. I think the only chance is to functionalized PE chains with limited number of functionalities which can show some interaction toward PC film might be a hydrogen bonded group can cover this problem. Indeed I have plan to work on this problem in future.
Dear Michele, this seems to be a significant practical problem. As an inorganic chemist I'm clearly not a proven specialist in this area. Possible solutions to this problem seem to be hidden in the patent literature. Nevertheless, it might be worth having a look at the following potentially useful links which could help you in your analysis:
DIGITALLY PRINTING WITH UV LED CURED INKS ON POLYCARBONATE
https://minplastics.com/wp-content/uploads/2019/03/Polycarbonate-Tuffak-Digital-Printing.pdf
(see attached pdf file)
Relevant papetnts:
INKJET PRINTING ON POLYCARBONATE SUBSTRATES
https://data.epo.org/publication-server/document?iDocId=6263020&iFormat=0
Ink for a polycarbonate substrate
https://patentimages.storage.googleapis.com/1c/93/71/839bdad1da85de/US20040191521A1.pdf
(also attached)
For screen printing plase also have a look at the following link:
Screen Printing on Polycarbonate: The Ultimate Guide
https://www.weetect.com/screen-printing-on-polycarbonate/
I hope this helps. Good luck with your work and best wishes, Frank Edelmann
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