stencil; mimeograph stencil
Specifically the waxed paper stencil used in mimeograph duplication. Now largely historical, but still encountered in older office contexts.
silkworm egg sheet
Specialized term in sericulture: a sheet of paper on which silkworm eggs are laid and stored.
base paper; body paper
Papermaking term: the raw or uncoated paper that serves as the substrate for further processing, such as coating or laminating.
In old schools, tests were printed using mimeograph stencils.
Sericulture farmers manage the eggs laid on the silkworm egg sheet.
At this factory, they apply a special coating to the base paper.