Printing

These pages explain the successive stages of printing collotype prints.

Encre phototypie

Collotype ink

12 January 2018 michel.momal 0

Inks used for collotype are different from the inks commonly used in printing, which are not suitable. They have very specific characteristics. Collotype ink is […]

Mouillage de la plaque

Wetting of the plate

12 January 2018 michel.momal 0

(preliminary operation: wetting with glycerine) PRELIMINARY OPERATION : Insert a sheet of white paper under the glass slab during printing to avoid breakage, and especially […]

Epreuve phototypie

Printing

12 January 2018 michel.momal 0

FIRST INKING (for adjusting the inking)  : Once the plate has been first wetted with the glycerine-water mixture, the proofing operations can be started. Ink the […]

Presse phototypique amateur

Collotype amateur

12 January 2018 michel.momal 0

Collotype press for amateurs Faller We have to indicate also the attempts made for some time to put the phototypie within the reach of all […]

No Image

Problems resolution

12 January 2018 michel.momal 0

Various difficulties may arise during the course of operations as well as during the draw of the collotype tests. Some answers are addressed here

sheets shims

10 January 2018 michel.momal 0

Sheets shims under blanket Although the phototypie is a flat process, in the parts sunstroke of the image, the gelatin inflates less that the parts […]

Chemicals

13 March 2013 michel.momal 0

CHEMICALS USED IN COLLOTYPE Chromium alum : General use to tan the gelatin – increase of the resistance,… Ammoniaque : Used to clean glass patches before spreading the […]