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Papers collodion

Gun-cotton continues to be an objeot of great interest on account of its application to the beautiful ait of photography. When the cotton is prepared in such a way as to burn slowly, it is not liable to spontaneous ignition, and it is in this state perfectly soluble in ether, which the more explosive cotton is not, If the ethereal solution be poured on the surface of cold wator, a paper is produced, which is prepared for tire use of the photographer. This paper is a very active aleetrio, and is perfectly soluble in ether. Collodion bos also been made use of in surgery, by applying the ethereal solution to a wound, when a thin delicate artificial skin is formed by it, which perfectly excludes the air.—Encyclopedia Britannica. [Pg.335]

Acids. — Blue litmus paper, when immersed in collodion, should not be reddened immediately. [Pg.94]

Collodion printing-out paper was introduced by Obernelter of Munich in 1867 and was for many years the favorite printing process of the portrait... [Pg.1289]

Uses. Cellulose is the most important industrial org raw material in the world, and unlike mineral wealth, tile supply is replenishable continously. It is the basis of the textile paper-making industries. When nitrated,cellulose yields NC used in propints expls, collodion, "celluloid , pyroxylin lacqures, and a variety of miscellaneous products... [Pg.492]

Gold-Bicarbonate Toning Formula for Albumen, Salt, and Collodion Paper... [Pg.152]

Collodio-Chloride Printing Out Paper Also known as Collodion Aristotype Paper... [Pg.154]

Caution. Collodion, the binder for this emulsion, is a clear viscous solution made by dissolving nitrated cellulose in ether and alcohol. It is flammable and you should take care not to coat papers or expose open containers of collodion to the presence of sparks or flames. Purchase Collodion USP for this process. [Pg.154]

Once the collodion has set, carefully detach the paper and pin it up by one corner to dry in a darkened room. Because collodion emulsions are solvent based, the emulsion will dry to a hard film in minutes. Once coated, it can be printed immediately or preserved for days in a light tight box. Collodion printing out paper is toned and processed using the same technique as described for salt, albumen or gelatin chloride papers. [Pg.156]

The only difference between collodion coated papers and all the others is that during processing the paper may curl slightly. This is because the collodion side will not easily absorb the processing solutions.This effect can be corrected by using solutions slightly warmed or a smaller quantity of solutions in each tray. [Pg.156]

Paper Wasp Extraction, 2001. 2008 Mark Osterman. All rights reserved. Courtesy Tilt Gallery. Gold-toned salt print from collodion negative, 10x8 inches. [Pg.158]

Ultrafiltration Sols pass through an ordinary filter paper. Its pores are too large to retain the colloidal particles. However, if the filter paper is impregnated with collodion and then dipped in HCHO or glacial acetic acid, the pore size is much reduced. Such a modified filter paper is called an ultra-filter. ... [Pg.176]

See other pages where Papers collodion is mentioned: [Pg.734]    [Pg.375]    [Pg.379]    [Pg.734]    [Pg.375]    [Pg.379]    [Pg.411]    [Pg.1186]    [Pg.81]    [Pg.165]    [Pg.691]    [Pg.697]    [Pg.698]    [Pg.699]    [Pg.700]    [Pg.701]    [Pg.704]    [Pg.705]    [Pg.707]    [Pg.593]    [Pg.1290]    [Pg.258]    [Pg.470]    [Pg.88]    [Pg.154]    [Pg.154]    [Pg.154]    [Pg.156]    [Pg.156]    [Pg.176]    [Pg.86]    [Pg.28]    [Pg.41]    [Pg.304]    [Pg.355]    [Pg.412]    [Pg.440]    [Pg.377]    [Pg.179]    [Pg.550]   
See also in sourсe #XX -- [ Pg.152 ]



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