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URL:https://www.learndesk.us/class/5826828558139392/lesson/f04d06e048fba5e61671d577b0c1b0c5?ref=outlook-calendar
SUMMARY:3.2.4. Photomechanical Processes: Photogravure and Phototype
DTSTART;TZID=America/Los_Angeles:20260406T190000
DTEND;TZID=America/Los_Angeles:20260406T200000
LOCATION:https://www.learndesk.us/class/5826828558139392/lesson/f04d06e048fba5e61671d577b0c1b0c5?ref=outlook-calendar
DESCRIPTION: 
Portrait of Victor Hugo,  photogravure process, produced by count Stalislaw Julian Ostroróg said Walery (circa 1875).
The structure of photomechanical prints allows for greater durability. The pigments used are generally very stable and do not fade when exposed to light. The most common deterioration factors associated with this process are those directly related to the paper (which was usually of poor quality).
So in photogravures and prototypes, we see the following:

Yellowing of the paper;
Tears, creases, folds, and even exfoliation of the surface;
Foxing.


https://www.learndesk.us/class/5826828558139392/lesson/f04d06e048fba5e61671d577b0c1b0c5?ref=outlook-calendar
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