Traube / Uvachrome

Subtractive 3 color: mordanting, dye transfer, wash-off relief, still photography and film
“In 1916 Traube found that copper toning baths were especially suitable for dye mordanting and patented the Uvachrome process. At the time, Germany was at war with most of Europe, and little commercial progress was made until the end of ...

3 Images

Triadochrome

Subtractive 3 color: dye mordanting and silver toning process, still photography
“After the war, in 1921, J. F. Shepherd introduced in England a printing method called the Triadochrome Color Process, which was very similar to Hamburger’s Polychromide. To make a print, a cyan impression obtained from an iron-toned ...

Trichromatic vision

Theory: Color vision
Theory of trichromatic vision proposed by Thomas Young.

Trucolor 2 color

Subtractive 2 color: Bi-pack, double-coated with dye couplers
“By the 1940s, most of the two-colour subtractive processes, apart from Cinecolor, were obsolete. The widespread use of the high-quality Technicolor process showed up the serious deficiencies in the simpler methods. The only significant new ...

Trucolor 3 color

Subtractive 3 color: Color separation on DuPont Release Positive Film

30 Images in 1 Gallery

Ufacolor

Subtractive 2 color: Bi-pack, mordant toning

136 Images in 7 Galleries

UltraStable Color Systems

Subtractive 4 color: pigment process, still photography
“Berger then started to work with the master carbro printer Richard Newmark Kauffman (1916−1998), and together they founded Ultrastable Color Systems, Inc. In 1992 they introduced presensitized UltraStable material for four-color carbon ...

1 Image

Ulysse

Two, three or four color color additive process: multiple lenses
The process relied on two-, three- or even four-color selections being superimposed on the screen. On the positive, two, three or four images of reduced dimensions were printed on a single frame with a longitudinal and lateral distance corresponding ...

Unidentified Processes

Various

Photographs of unidentified color film technologies. Several different principles and times. Feel free to contact us if you can help identifying them!

298 Images in 5 Galleries

Urban-Joy Process, improvement of Kinemacolor, later called Kinekrom

Additive 2 color: Rotary filter
“In the design of apparatus Urban was assisted after 1905 by Henry W. Joy. The Urban-Joy perforator appeared in 1906. The Urban-Joy anti-firing device, a shutter to prevent the firing of inflammable film when projectors broke down, was another ...

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