Stone Lithograph Press
I took this in April, 2005. Kevin was assisting his dad (Harold E Hansen) with a large print on a stone lithograph press.
The stone was treated with a mixture of acid and gum arabic, etching the portions of the stone that were not protected by the grease-based image. When the stone was subsequently moistened, these etched areas retained water; an oil-based ink could then be applied and would be repelled by the water, sticking only to the original drawing. The ink would finally be transferred to a blank paper sheet, producing a printed page. (Wikipedia)
Stone Lithograph Press
I took this in April, 2005. Kevin was assisting his dad (Harold E Hansen) with a large print on a stone lithograph press.
The stone was treated with a mixture of acid and gum arabic, etching the portions of the stone that were not protected by the grease-based image. When the stone was subsequently moistened, these etched areas retained water; an oil-based ink could then be applied and would be repelled by the water, sticking only to the original drawing. The ink would finally be transferred to a blank paper sheet, producing a printed page. (Wikipedia)