Photogravure

PhotogravureAbout the year 1820 Nicphore Niepce made the discovery that bitumen, under certain conditions, was sensitive to...
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SKU: gb-36446-ebook
Product Type: Books
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Author: Blaney, Henry R.,1855-1913
Format: eBook
Language: English
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Photogravure

Photogravure

$9.99

Photogravure

$9.99
Author: Blaney, Henry R.,1855-1913
Format: eBook
Language: English

Photogravure

About the year 1820 Nicphore Niepce made the discovery that bitumen, under certain conditions, was sensitive to light. He dissolved it in oil of lavender, and spread a thin layer of the solution thus obtained upon stone. This he exposed under a drawing (making the paper transparent by waxing), and after sufficient exposure, oil of lavender was poured on. Those portions of the bitumen which had been exposed to the action of the light had become insoluble, and so remained while the lines which had been protected by the drawing were dissolved away. By treating the stone with an acid these lines were bitten or eroded, and could be printed from. Niepce afterward employed metal plates instead of the stone. Here we have the foundation for a number of printing processes of the present day, including photogravure. For many years, however, progress in processes for intaglio printing was very slow. In 1852 Talbot introduced a process termed photoglyphy, and in 1854 Paul Pretsch, of Vienna, patented a process which he termed photogalvanography. In 1870 the late Walter B. Woodbury, inventor of the Woodburytype process, suggested to M. Rousselon, of M. M. Goupil & Co.,[A] a process which he had discovered, and which he describes[B] as follows: ......Buy Now (To Read More)

Product details

Ebook Number: 36446
Author: Blaney, Henry R.
Release Date: Jun 17, 2011
Format: eBook
Language: English

Contributors

Editor: Adams, W. I. Lincoln (Washington Irving Lincoln), 1865-1946

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