Relieftulostuksessa

Relieftulostuksessa, a Finnish term, translates to relief printing in English. It is a process within the broader category of printing techniques where ink is applied to the raised surface of a matrix, and then transferred to paper or other substrates. The areas that are to be printed are left raised, while the areas that are not to be printed are cut away. This creates a contrast between the inked image and the unprinted areas of the substrate.

Historically, relief printing is one of the oldest printing methods. Woodcut, a form of relief printing, was widely used for centuries to create illustrations and texts. Other common relief printing techniques include linocut, where the matrix is carved from linoleum, and letterpress printing, which utilizes movable type. In letterpress, individual metal or wooden letters are arranged to form words and sentences, inked, and then pressed onto the paper.

The process involves preparing a matrix, which can be made from wood, linoleum, rubber, or metal. The artist or printer carves or engraces the design into the matrix, removing the areas that should remain white or unprinted. Ink is then applied to the raised surfaces using a roller, often called a brayer. Finally, paper or another printing material is placed over the inked matrix, and pressure is applied to transfer the ink. This pressure can be applied manually or with a printing press. Relief printing is known for its distinctive, often bold, lines and textures.