Construction paper

Due to the source material, mainly wood pulp, small particles are visible on the paper's surface.

It is related to the "blue paper" used by confectionery bakers in England from the 17th century onwards; for example, in the baking of Regency ratafia cakes (or macaroons).

Around that time, construction paper was primarily advertised for classroom settings as an effective canvas for supporting multiple drawing media.

The primary dyes involved in producing construction paper were abundant until Germany, the main producer of aniline for dyes at the time, became involved in World War I and ceased its exports.

The shortage marked a period in which construction paper was created using substitute colouring methods.