SCREEN PRINTING is a printing technique in which ink is transferred to a substrate using a mesh, except in areas where the ink is impenetrable by means of a closed template. A blade or squeegee is moved across the screen to fill the opening of the mesh with ink. This causes the ink to wet the substrate. One color is printed at a time, so several screens will be needed to make a multicoloured image or design.
What do we need to prepare for screen printing? The following items are necessary.
1. Large enough well-ventilated workshop and workbench. 2. A screen. 3. A blade or squeegee. 4. Printing inks. 5. Substrate.
LARGE ENOUGH WELL-VENTILATED WORKSHOP AND WORKBENCH. The spacious and well-ventilated workshop can ensure that workers can print more efficiently and accelerate the drying of ink.
A SCREEN A screen is made of a piece of mesh stretched over a frame. The most commonly used mesh is made of polyester. There are different types of mesh sizes, which are determined by the design. The frame which holds the mesh could be made of diverse materials, such as wood or aluminum.
A BLADE OR SQUEEGEE The blade is used to push the ink through the holes in the mesh.
PRINTING INKS According to the substrate, design and the use environment and requirements of final product, we will choose the most suitable ink to print.