A lightweight and translucent drawing paper that allows the copying of images that can be seen through it.
Paper made from chemical pulp where the fibres have been "beaten" mechanically until they become gelatinous and translucent. Chemical treatment may also be applied to breakdown the fibre structure of the sheet to increase transparency. The closing of the inter fibre spaces produces a surface more akin to a film than normal paper so special precautions arte required during printing.
Tracing paper (French: Papier Calque)is a type of paper, which is translucent so the light can go through. It's made by immersing unsized and unloaded paper of good quality in sulphuric acid for a few seconds. The action of the acid converts some of the cellulose into amyloid form having a gelatinous and impermeable character.