A carboxy methyl cellulose (CMC)-based screen printable paste was prepared (Supporting information 3, Fig S7a). Figure shows the schematic of the preparation of MOF screen printing ink. An ideal screen-printing ink exhibits pseudoplastic behaviour. It demonstrates shear-thinning properties since the viscosity decreases with the increase of shear rate, which allows the ink to flow from the mesh when shear is applied. Once the force is removed, a rapid recovery is observed yielding a high-resolution trace. Figure shows the change of viscosity from ∼1516.7 cP to ∼157.7 cP over a shear rate up to 1000 s -1 for the MOF ink prepared in this study. The shear stress also increases up to ∼157.56 Pa over the same shear rate, exhibiting the suitability of the prepared ink for screen printing. The literature also indicates that the most beneficial technological outcomes are witnessed when screen-printing inks display a slight degree of thixotropy alongside their shear-thinning characteristics. We also assessed the thixotropic behaviour of our screen-printable ink. The small, enclosed area of the hysteresis loop (Supporting information 2, Figure ) also supports the literature for the suitability of the MOF screen printing ink. The widely adopted screen-printing technique, known for its simplicity and excellent scalability, was employed to imprint MOF-based conductive patterns onto textiles, to create the conductive e-textiles, Figure . The number of print layers was then optimized. The electrical resistance of the printed fabric was found to be ~384 MΩ cm -1 (Figure ) after the first print layer. It reduces significantly to ~278 MΩ cm -1 after the second print layer and continues to decrease steadily up to four print layers to ~90 MΩ cm -1 due to the permeation of an increased amount of MOF particles on the textile surface. After four print layers, the resistance does not reduce significantly; reaches saturation and becomes almost steady as observed until ten print layers. Therefore, we selected four print layers to prepare MOF-based printed wearable e-textiles for supercapacitor analysis. The samples were dried at 100 °C for 5 minutes after each print layer during the optimization process. We then optimized the curing temperature and time for MOF-printed fabrics. Figure shows the electrical resistances at different temperatures and times. It was observed that the electrical resistance of the MOFprinted fabric decreases slightly with the increase of curing temperature up to 120 °C. This is possibly due to the increase of contact force between conductive MOF fillers present in the conductive ink with a possible shrinkage of the organic binder present in the ink, which results in a reduced electrical resistance of the print pattern. However, further increments of the curing temperature and time increased the resistance of the printed patterns. The phenomenon could be attributed to the degradation of material or fibre structures, intra-macromolecular crosslinking, and depolymerization. It is worth noting that no significant variations in the resistance were observed due to the change in temperature and time. Therefore, we selected 120 °C for 5 minutes for the curing of the samples. Figure shows the scanning electron microscopic images (SEM) of the control (top) and MOF screen-printed textiles (bottom) exhibiting a full covering with MOF particles after printing with concentrated MOF powderbased inks, followed by drying and curing.