In 2010, the FDA approved Botox as a treatment for chronic migraine. Get more information about how and why it can help with this migraine subtype. In 2010, the FDA approved Botox as a treatment for chronic migraine.
In modern lithography, the image is made of a polymer coating applied to a flexible aluminum plate. The image can be printed directly from the plate (the orientation of the image is reversed), or it can be offset, by transferring the image onto a flexible sheet (rubber) for printing and publication.
Lithography is a method of printmaking based on the chemical repellence of oil and water. It is a. process of printing from a smooth plate; the printing and non-printing surfaces are all at the same. level, as opposed to intaglio or relief processes in which the design is cut into the printing block.