platinotype

American  

[plat-n-oh-tahyp] / ˈplæt n oʊˌtaɪp /

noun

Photography.

1. a process of printing positives in which a platinum salt is used, rather than the usual silver salts, in order to make a more permanent print.

2. Also called platinum print.  a print made by this process.

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platinotype British  

/ ˈplætɪnəʊˌtaɪp /

noun

1. an obsolete process for producing photographic prints using paper coated with an emulsion containing platinum salts, the resulting image in platinum black being more permanent and of a richer tone than the usual silver image

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Etymology

Origin of platinotype

First recorded in 1875–80; platin(um) + -o- + -type

Example Sentences

After giving a r�sum� of the early experiments with platinum by Herschel, Hunt, and others, the theory and practice of platinotype printing are clearly explained, and it was undoubtedly due to the publication of this translation that platinotype printing was very much popularised.

From Project Gutenberg

In proof of the accuracy of this opinion, every following photographic exhibition showed an increasing number of exhibits in platinotype.

From Project Gutenberg

Historical illustrations of the development of the platinotype process.

From Project Gutenberg

Improvement in platinotype patented by W. Willis, junior, July.

From Project Gutenberg

Pizzighelli’s visible platinotype printing paper put on the market in June.

From Project Gutenberg