Faults or Defects of Screen Printing and Roller Printing

Screen printing: Screen printing is one of the popular printing techniques. It is an old age process. Different screen is needed for each color. In this printing method, mesh is used to transfer ink onto a substrate, except in areas made impermeable to the ink by a blocking stencil. A blade or squeegee is moved across the screen to fill the open mesh apertures with ink, and a reverse stroke then