silkscreen

/S IH1 L K S K R IY0 N/
noun
  1. 1

    A sheet of material (originally silk but now synthetic) with areas that are porous to ink and others that are non-porous to allow printing of images, such as on T-shirts.

verb
  1. 1

    To use a silkscreen to apply an image.

Source: https://en.wiktionary.org/wiki/silkscreen