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Collotype

Index Collotype

Collotype is a dichromate-based photographic process invented by Alphonse Poitevin in 1856, and used for large-volume mechanical printing before the introduction of cheaper offset lithography. [1]

9 relations: Acid, Alfred Stieglitz, Alphonse Louis Poitevin, Chromate and dichromate, Glycerol, List of photographic processes, Offset printing, Tympan, Ultraviolet.

Acid

An acid is a molecule or ion capable of donating a hydron (proton or hydrogen ion H+), or, alternatively, capable of forming a covalent bond with an electron pair (a Lewis acid).

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Alfred Stieglitz

Alfred Stieglitz (January 1, 1864 – July 13, 1946) was an American photographer and modern art promoter who was instrumental over his fifty-year career in making photography an accepted art form.

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Alphonse Louis Poitevin

Alphonse Louis Poitevin (Conflans-sur-Anille, 1819 – Conflans-sur-Anille, 1882) was a French chemist, photographer and civil engineer who discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.

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Chromate and dichromate

Chromate salts contain the chromate anion,.

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Glycerol

Glycerol (also called glycerine or glycerin; see spelling differences) is a simple polyol compound.

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List of photographic processes

A list of photographic processing techniques.

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Offset printing

Offset printing is a commonly used printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket, then to the printing surface.

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Tympan

Tympan means skin, and is used in a variety of technical meanings.

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Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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References

[1] https://en.wikipedia.org/wiki/Collotype

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