1Gelatin for watercolor paper for Carbon

je recherche des informations sur les colloïdes utilisés au 19ème siècle et sur les dfférents techniques utilisées pour encollés les papiers aquarelles pour recevoir les images au charbon.
Merci de vos réponses


I am looking for information about technical colloids used in the 19th century and used to dfférents sized watercolors papers to receive the images by carbon.
Thank you for your answers

According to contemporary literature one of the advantages of the carbon process over other processes was that the carbon process could be used on any non extremely absorbing paper regardless of the paper's sizing. The three predominant sizings were gelatine, glue and starch some papers were sized with whey though. According to "A Practical Treatise on the Manufacture of Paper in All Its Branches" the article about sizing https://books.google.at/books?id=M9...e&sa=X&redir_esc=y#v=onepage&q=sizing&f=false

La photographie au charbon mise à la portée de tous : nouveau procédé d'impression inaltérable par les sels de chrome... description pratique des opérations / par A. Liébert
also seems to have a chapter about the paper manufacture it's available at the Gallica Bibliotheque Nationale de France http://gallica.bnf.fr/ark:/12148/bpt6k6532517v/f9.planchecontact.r=procede de charbon.langDE

Good luck