Uto Paper 1906–1911, after 1911 Utocolor Paper, after 1912 Utocolor-Rapid-Paper

Subtractive 3 color: dye destruction process, bleach-out, still photography
“In 1906 John Henry Smith (1860–1917) and Waldemar Merckens commercially introduced a collodion paper impregnated with fugitive yellow, magenta, and cyan dyes. They called it Uto paper, after a range of mountains near Zurich (Johnson 1917: ...

2 Images

Uvatype

Subtractive 3 color: dye imbibition process, still photography
“Uvatype was yet another variation of the dye imbibition process, introduced by the Uvachrome Company of Germany in 1929 (Fig. 4.12). Its inventor, the German chemist Arthur Traube, worked diligently to improve the then-available imbibition ...

1 Image

Vericolor

Subtractive 2 color: unknown

40 Images

Versicolor-Dufay

Additive 3 color: line screen plate, still photography and film
“The most successful of all the screen processes was the one initiated by Louis Dufay. Today the product is known as Dufaycolor, but it was first introduced about 1910 as the Dioptichrome plate. The first Dufay patents were assigned to an ...

Vitacolor

Subtractive 2 color: Single coated

Vivex

Subtractive 3 color: pigment process, still photography
“Vivex prints were introduced by Color Photographs Limited of London in 1928. One of the most important features of this printing method, invented by Douglas Arthur Spencer (1902–1980), was the introduction in 1929 of cellophane, instead of ...

1 Image

Warner-Powrie

Additive 3 color: Line screen
“The Warner-Powrie process patented in 1905 was the earliest commercial process using a screen made with bichromated colloid. A glass plate was thinly coated with bichromated gelatin or fish glue and exposed to light through a screen having ...

Wolff-Heide

additive three-color: Integrated filters and rotary filter
Much like many other additive processes, the Wolff-Heide system was based on three black and white color separations printed consecutively on one film strip and projected through a rotary filter attached to the projector. However, the biggest ...

Worel’s bleach-out process

Subtractive 3 color: dye destruction process, bleach-out, still photography

Zoechrome

Subtractive 3 color: Multi-layer printing

16 Images in 1 Gallery