Screen Printing

What are Lines per Inch

  • dots on a grid, where the grid spacing is that many lines in an inch.
  • half-toning dots are placed at the line intersections. Size is varied to simulate range of intensities
  • grid of squares is rotated: this is the screen angle
  • screen angle can/is varied between colours to avoid moire patterns
  • 300-600DPI laser printer is ~50-65 LPI

More details.

Info on halftone dots.

Screen Printing Mesh Counts