Two-handed roller for professional printmaking works. PVC nitrile rubber, also known as NBR rubber. High quality in the construction materials, both in the rubber and in core and aluminum clamps.
The roller includes a table and wall support designed by the Rittagraf team.
Roller diameter 15 cm. and 55 cm. Wide.
There are 3 rubber hardnesses for this professional roller:
-Soft rubber roller - 25 shores
-Medium rubber roller - 38 shores
-Hard rubber roller - 60 shores
It is important to choose the hardness based on the job or printing needs. A hard roller will lay down thinner layers of ink, while a soft roller will conform more closely to the matrix surface and lay down more ink. The medium hardness roller is ideal for inking almost any medium: stone lithograph work, offset plates, grained lithograph plates, linoleum, collagraph, etc. The high-hardness roller is fantastic for inking relief work plates where we need the hardness of the roller to respect the surface of the plate to be inked, such as xylography work where we want to respect the grain of the wood. It is also very suitable for washes in lithography and lithopolyester. The soft roller is the one that deposits more ink and can be very suitable for collagraph and other techniques where rapid inking with fewer passes is required.
It is important to choose the hardness of the rubber according to the technical needs and the materials of the engraving dies. In metal intaglio engraving, the hardness of the rollers can be combined to perform work in the "roll up" style, a technique known by the name of its inventor, Hayter, where fluidity and the use of rollers of different hardness are necessary to perform work. polychromes from the same matrix.