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A layer of dry and cured ink on a roller can only be removed with solvents. Use kerosene or litholine (turpentine substitute) for this purpose. Because of the oil content, petroleum will make the leather more supple during cleaning. The roll should be scraped well after this; if not done properly, the oil in the kerosene will later dilute the printing ink and give greasy prints. If litholine is used, the roll must be inked immediately afterwards; otherwise this solvent will dry out the leather. Hard spots of dried out ink should be removed with a stronger agent, such as paint remover. The ink can then be removed with a leather brush. Regular table salt can be used as an abrasive to roughen up the dry matte leather. |