Opolgraf has its own modern machinery for litho printing.
We specialize in mono and full color soft cover production (Hot-melt or PUR) and wire-stitched - both with flaps option and with covers enriched by foiling and selective varnish. We have a fully equipped machines park. We print on B1 format, on sheet-fed and web fed machines.
Effective use of our machines enlarges production capabilities. We use the best raw materials for our production. We can print on different substrates, such as: volume papers, coated papers, boards with holographic foil and so on – in a great grammature range. We guarantee the most professional service by using modern machinery and innovative technology solutions.
If you ask any printing specialist what lithography is, you will learn that it is one of the printing techniques in the planographic print group. However, litography is one of the youngest book printing techniques and the first attempts at litho printing were undertaken by an Austrian, Michael Gerecht as early as in 1430. Unfortunately, his work was far from the modern technique of litography. Why is this process considered innovative? It is not the material that makes litho printing exceptional, but the fact that the printing and non-printing surfaces are in the same plane. It is innovative when compared with other printing methods. Until today the well known techniques have been the intaglio, in which the printing surface is below the rest of the plate, and relief print where the protruding surfaces of the matrix are reflected on the paper.
Lithographic stones are used for the process and the litho printing technique is different from the classic litography, where it is applied on the drawing with oily pencil or lithographic ink. It gives the effect of coarse grain texture on the print. Afterwards, the surface of the stone is treated with a mild solution of the nitric acid and gum arabic. Thus, the property called lipophobicity is obtained without losing hydrophilicity. Then, the drawing is moistened and printing paint is applied, the paint is accepted only by those parts that had previously been treated with fat. In the litho print process, the prints are created as the result of touching moistened paper to the stone on the lithographic press.