How do you print hydrochromic ink by screen printing?

To print hydrochromic ink using screen printing, first prepare your screen with a suitable mesh count and create a stencil of your design. Next, mix the hydrochromic ink, ensuring it’s well blended for even application. Apply the ink to the screen and use a squeegee to push it through the stencil onto the substrate. After printing, allow the ink to cure properly according to the manufacturer's instructions to activate its hydrochromic properties, which change color when exposed to moisture.