TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

DYE COUPLER [5 records]

Record 1 2011-10-03

English

Subject field(s)
  • Dyes and Pigments (Industries)
  • Inks and Colour Reproduction (Graphic Arts)
  • Reprography
DEF

[A] dye formed by the reaction of diazonium salts and coupler, as in the diazo process.

OBS

This general group is subdivided as monoazo, disazo, trisazo, and tetrazo according to the number of [azo] groups in the molecule.

OBS

The term azo stems from the French word "azote" meaning nitrogen.

Key term(s)
  • azo color

French

Domaine(s)
  • Teintures et pigments (Industries)
  • Encres et couleurs (Industrie graphique)
  • Reprographie
CONT

Les colorants azoïques contiennent un ou plusieurs groupes azoïques. On les prépare par l'intermédiaire d'un diazo [...] qu'on fait réagir avec un «copulant» (réaction de copulation).

CONT

Le diazoïque pourra [...] se combiner avec des corps chimiques appelés «couplants» pour donner des molécules colorées plus grosses. [...] Le colorant formé s'appelle un «azoïque».

Spanish

Campo(s) temático(s)
  • Tinturas y pigmentos (Industrias)
  • Tintas y colores (Artes gráficas)
  • Reprografía
Save record 1

Record 2 2010-08-11

English

Subject field(s)
  • Photography
DEF

A solution of chemicals capable of reducing exposed silver halide with simultaneous production of a coloured dye by the interaction of oxidation products of the developing agent with a color forming substance or coupler incorporated either in the emulsion or in the developing solution.

French

Domaine(s)
  • Photographie

Spanish

Save record 2

Record 3 2004-05-13

English

Subject field(s)
  • Dyes and Pigments (Industries)
CONT

azo dye : A moderately transparent dye which may be made optically dense by the reaction or coupling of a diazo and coupler. Exposure to light may make the dye incapable of coupling in proportion to the exposure received.

French

Domaine(s)
  • Teintures et pigments (Industries)
DEF

Combinaison d'un diazoïque avec un phénol ou une amine.

CONT

Le diazoïque pourra [...] se combiner avec des corps chimiques appelés «copulants» pour donner des molécules colorées plus grosses. Cette réaction s'appelle le développement ou la copulation.

Spanish

Campo(s) temático(s)
  • Tinturas y pigmentos (Industrias)
DEF

Condensación de un compuesto diazoico sobre un fenol o una amina aromática; es una de las reacciones más importantes de la química orgánica, pues se traduce por la formación de colorantes azoicos.

Save record 3

Record 4 2003-12-22

English

Subject field(s)
  • Photography
DEF

[A] chemical compound ... that [attaches] to an oxidized developer during processing, altering its natural inclination.

OBS

dye coupling: Production of coloured images by the reaction between oxidized colour developers and couplers incorporated in the emulsion or in the developing solution.

French

Domaine(s)
  • Photographie
DEF

Dans certains systèmes, [...] composés colorés (jaunes ou orangés) produisant, lors du tirage du positif, un effet de masque, pour réduire les conséquences des absorptions parasites des colorants formés lors du développement du négatif.

Spanish

Save record 4

Record 5 1985-12-16

English

Subject field(s)
  • Micrographics
DEF

diazo material that carries both the diazonium salt and the dye coupler in its emulsion.

French

Domaine(s)
  • Micrographie
DEF

produit diazoïque contenant, dans son émulsion, et le sel de diazonium et le copulant du colorant.

Spanish

Save record 5

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