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bichromate processes (pigment processes, photographic processes, ... Processes and Techniques (hierarchy name)) |
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Note: Processes for making photographic prints using a bichromate compound which, when exposed to light, causes its colloid binder to harden; unhardened areas are washed or abraded away. Pigments may be incorporated before exposure or during development. Though the expression dichromate is now preferred in chemistry, bichromate remains common usage in photography.
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| Terms: |
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| bichromate processes (preferred,C,U,English-P,D,U,U)
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| bichromate process (C,U,English,AD,U,U)
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| bichromated pigment processes (C,U,English,UF,U,U)
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| dichromate processes (C,U,English,UF,U,U)
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| 重鉻酸鹽成像法 (C,U,Chinese (traditional)-P,D,U,U)
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| bichromate procedés (C,U,Dutch-P,D,U,U)
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| bichromaat procedé (C,U,Dutch,AD,U,U)
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| proceso al bicromato (C,U,Spanish-P,D,U,U)
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| procesos al bicromato (C,U,Spanish,AD,U,U)
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Facet/Hierarchy Code: K.KT |
Hierarchical Position:
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Activities Facet |
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.... Processes and Techniques (hierarchy name) (G) |
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........ <processes and techniques by specific type> (G) |
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............ <image-making processes and techniques> (G) |
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................ <photography and photographic processes and techniques> (G) |
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.................... photographic processes (G) |
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........................ pigment processes (G) |
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............................ bichromate processes (G) |
Additional Notes: |
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| Chinese (traditional) ..... 一種沖印照片的技法，係利用重鉻酸鹽的特性，此種化合物受光照後可黏著的膠質部分會硬化，未硬化的部分可經由沖洗或磨蝕去除，而色料可在曝光前或顯影過程中加入。雖然化學中多稱為「二鉻酸鹽」（dichromate），但在攝影領域中一般仍稱為「重鉻酸鹽」（bichromate）。 |
| Dutch ..... Pigmentdruk waarbij een bichromaatverbinding wordt gebruikt die, wanneer die aan licht wordt blootgesteld, het colloïde bindmiddel doet verharden. Onverharde delen kunnen worden afgewassen of weggeschuurd. Het pigment kan worden aangebracht vóór de belichting, of tijdens het ontwikkelen. Hoewel men aan de term dichromaat in de scheikunde tegenwoordig de voorkeur geeft, blijft bichromaat in gebruik in de fotografie. |
| Spanish ..... Se refiere a sales crómicas de potasio, amonio o sodio (Cr2 O7), llamadas tambien dicromatos. Estos elementos son sensibilizadoras a la luz en asociación con emulsiones organicas. Son muy usadas en procesos fotográficos. |
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Related concepts: |
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| produces .... |
oil prints (photographic prints) |
| ................ |
(pigment prints, <photographic prints by process>, ... Visual and Verbal Communication (hierarchy name)) [300138319] |
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Sources and Contributors: |
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