• (p. pr. & vb. n.) of Perforate
perforating Making a hole or holes in something.
Processes used by plastic manufacturers by which plastic film or plastic sheeting, or extrusions are provided with holes within the plastic material ranging from relatively large diameters for decorative effects to very small, even invisible, sizes on the plastic.
Punching small holes or slits in a sheet of paper or cardboard to facilitate tearing along a desired line.
Processes by which plastic film or sheeting is provided with holes ranging from relatively large diameters for decorative effects (by means of punching or clicking) to very small, even invisible, sizes. The latter are attained by passing the material between rollers or plates, one of which is equipped with closely spaced fine needles or by spark er...