What technique is characterized by drawing directly onto a plate without the use of an acid bath?

The technique of drypoint etching is characterized by drawing directly onto a metal plate using a sharp tool, known as a burin, which creates raised lines. This method does not involve an acid bath, which distinguishes it from other forms of etching and intaglio printing. When the ink is applied to the plate, it fills the grooves made by the burin, and when pressed onto paper, the resulting image showcases the fine lines and textures created by the direct drawing process. This results in a distinct appearance and quality in the final print, typically with a rich, velvety line quality that is unique to drypoint.

In contrast, woodcut involves carving an image into a wood block, lithography is based on the chemical properties of grease and water, and screen printing involves forcing ink through a mesh screen. Each of these techniques employs different processes and materials, setting them apart from drypoint etching, which relies solely on the direct and immediate engagement of the artist with the plate.