Cyanotype facts for kids

Cyanotypie, Dictyota dichotoma, by Anna Atkins

Sir John F.W. Herschel: Lady with a harp, 1842

Cyanotype is a photographic printing process, which produces prints that are blue. John Herschel discovered the process in 1842. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ammonium iron(III) citrate and potassium ferricyanide.

Images for kids

• 

  Architectural drawing blueprint, Canada, 1936

• 

  Cyanotype postcard, Racine, Wis., c. 1910

• 

  Wolfgang Autenrieth, 2021. Partially sprayed cyanotype, dusted with color powder. Various objects (screws, rubber rings, cut-out plastic and metal parts)

• 

  Self portrait of Linley Sambourne modelling (10 January 1895) for Punch cartoon 'Quite English, You Know!

• 

  Edward Steichen (1904) Midnight Lake George or Road into the Valley – Moonrise.

• 

  Bertha Evelyn Jaques, Untitled, c. 1900, cyanotype, NGA 136408

• 

  Catherine Jansen (1981) The Blue Room, cyanotype on fabric, mixed media.

• 

  Indigo XII, Kate Cordsen. Cyanotype on handmade paper

See also

In Spanish: Cianotipia para niños