French cooks call it this not because this kitchen tool comes from China but because it resembles an Asian conical hat.
[4] A similarly shaped utensil is the China cap (also named for its resemblance to Asian conical hats).
A China cap is used to remove seeds and other coarse matter from soft foods, but produces a coarser-textured product than the chinois.
With the pestle tip placed in the bottom of the strainer, it is rolled against the sides of the device to work liquids and soft food through it.
This allows the user to scoop solids from the sides of the strainer as well as pressing liquid through the mesh.