fully intact (Fig. \[panel2\]d), with the ultrathin PVA layer underneath acting as the ink-substrate interface.

Figure \[panel2\]e shows the final printed pattern on a glass rod and corresponding SEM images of the top and cross-sectional view of the printed conductive pattern, revealing the dried SF film ($\sim$15 $\mu$m) acting as the adhesive layer between the conductive pattern and the glass substrate. We also carry out a pull off adhesion test of a transferred pattern on a glass substrate using a BGD 500 adhesion pull off tester. From three separate measurements, we find that it requires an average of 8.8 $\times$ 10${^5}$ N m${^{-2}}$ of force to detach the pattern from the substrate. We observe a $\sim$40 % improvement in adhesion over time as the same set of three adhesion tests carried out three months later on the same sample requires an average of 1.25 $\times$ 10${^6}$ N m${^{-2}}$ of force to pull off. This is comparable to our measurements on commercial carbon inks printed on glass substrates (1.1 $\times$ 10${^6}$ N m${^{-2}}$). Representative sheet resistance (R$_s$) data recorded for the patterns show no significant increase in R$_s$ before and after transfer; Fig. \[panel2\]f. At thinner prints of graphene ink ($\sim$4 