التركية - الإنجليزية
تعريف kollodiyon في التركية الإنجليزية القاموس.
- collodion
- a colorless syrupy solution of pyroxylin in ether and alcohol; used as a coating for wounds or photographic films
- a syrupy solution of pyroxylin in alcohol and ether that evaporates on a surface to form a clear elastic film; used in surgical dressings, photographic plates and lacquer paints
- A transparent, syrupy solution of pyroxylin (a nitrocellulose) dissolved in ether and alcohol; used as the basis for the emulsion in the wet-plate process
- It is strongly adhesive, and is used by surgeons as a coating for wounds; but its chief application is as a vehicle for the sensitive film in photography
- {i} chemical solution
- A cellulose treatment applied to certain 1850-60-period combustible cartridges to help render them moisture-resistant (see Bartholow's and Hazard's Patents) COMBUSTIBLE CARTRIDGE - A term applied to certain early ammunition which contained propellant in a sometimes nitrated paper casing which was affixed to or enclosed the projectile The entire envelope was consumed in the firing of the round
- The collodion wet-plate process was invented by Fredrick Scott Archer in 1848, published in 1851, and practiced as the most popular negative process from the mid 1850's until the 1880's, when it was superseded by the gelatin dye plate A glass plate was evenly coated with collodion, made light sensitive, exposed, and finally developed, all before the emulsion dried The resulting negative, after being fixed and washed, was ordinarily varnished to preserve and protect it Although the glass was fragile and the process was awkward (having to be performed quickly and in the dark while the plate was still wet) the advantages greatly outweighed the disadvantages Unlike the Daguerreotype, the collodion process produced a negative from which multiple prints could be made Also the exposure time was considerably less than that demanded by other processes Collodion wet-plates were most often printed on albumen paper
- A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol