collodion

Definitions

  • WordNet 3.6
    • n collodion a colorless syrupy solution of pyroxylin in ether and alcohol; used as a coating for wounds or photographic films
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Webster's Revised Unabridged Dictionary
    • n Collodion (Chem) A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol. 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.
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Century Dictionary and Cyclopedia
    • n collodion A substance prepared by dissolving pyroxylin or guncotton in ether, or in a mixture of ether and alcohol. It forms a useful substitute for adhesive plaster in the case of slight wounds. When the solution is applied to the wound, it immediately dries in a semi-transparent, tenacious film, which adheres firmly to the part, and protects the wound or abrasion. With the addition of a small quantity of iodides and bromides. collodion is employed as the basis of a photographic process, called the collodion or wet process. To obtain a negative picture by this process, a glass plate is covered with a film of collodion, which is sensitized by a salt (usually the nitrate) of silver, and the plate exposed in the camera. The latent image obtained is then developed by the application of a solution of iron protosul-phate, water, and acetic acid, and the unprecipitated silver remaining in the film is dissolved by a fixing solution of sodium hyposulphite or of potassium cyanide. To obtain a positive picture, a sheet of paper is laid upon the face of the negative in a frame, the paper having been sensitized by floating on a solution of silver nitrate, or by any other of several methods. The frame is then exposed to light in such a manner that the rays, to reach the paper, must pass through the negative, and the exposure is continued till the tone is sufficiently deep, after which the tint is improved by means of gold chlorid and other salts, and the picture fixed with sodium hyposulphite. Positive pictures may also be obtained direct by the collodion process. Collodion is used also as a water-proof coating in place of varnish, especially to protect lucifer matches from the effects of dampness.
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Chambers's Twentieth Century Dictionary
    • n Collodion kol-ō′di-on a gluey solution of gun-cotton in alcohol and ether, used in surgery and photography.
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Etymology

Webster's Revised Unabridged Dictionary
Gr. like glue; ko`lla glue + form. Cf. Colloid
Chambers's Twentieth Century Dictionary
Gr. kollōdēskolla, glue, eidos, form, appearance.

Usage

In literature:

How long will the collodion, according to his formulae, keep, as collodion made with iodide of silver generally decomposes quickly.
"Notes and Queries, Number 193, July 9, 1853" by Various
Their Iodized Collodion is highly sensitive, and retains all its qualities unimpaired for three months.
"Notes and Queries, Number 194, July 16, 1853" by Various
Their Iodized Collodion is highly sensitive, and retains all its qualities unimpaired for three months.
"Notes and Queries, Number 195, July 23, 1853" by Various
Now, as one who has had some experience, both in the manufacture and uses of collodion, such a view does not agree with my practice and observation.
"Notes and Queries, Number 218, December 31, 1853" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 217, December 24, 1853" by Various
When dry it may be covered with a coating of collodion or tar, each containing 1 per cent of iodin.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 216, December 17, 1853" by Various
The colours would then be burnt in, and the varnish and collodion film cleared off.
"Notes and Queries, Number 232, April 8, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 233, April 15, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 234, April 22, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 235, April 29, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 237, May 13, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 238, May 20, 1854" by Various
THE COLLODION AND POSITIVE PAPER PROCESS.
"Notes and Queries, Number 239, May 27, 1854" by Various
Now, one expects a photographer to be almost as sensitive as the collodion to which Mr. Scott Archer helped him.
"The Evolution of Photography" by John Werge
The case was this: A gentleman sitter had been taken in the usual manner upon a collodion plate.
"Photographic Amusements, Ninth Edition" by Walter E. Woodbury and Frank R. Fraprie
When the collodion ceases to repel water it is ready to receive the printed tissue.
"The Barnet Book of Photography" by Various
He was also in the habit of carrying a tube of collodion to coat the finger-tips and defy the finger-printers.
"Anthony Trent, Master Criminal" by Wyndham Martyn
The introduction of wet collodion reduced this tax on a sitter's patience to ten seconds.
"The Romance of Modern Invention" by Archibald Williams
Collodion Process in Photography.
"The Progress of Invention in the Nineteenth Century." by Edward W. Byrn
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In news:

Preparing to make a tintype, Drew Tanner pours collodion onto a metal plate.
Preparing to make a tintype , Drew Tanner pours collodion onto a metal plate.
John Stirling is an artist that produces works with the help of an airbrush, skin wax and, yes, even rigid collodion.
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In science:

Isotope Separator and the α recoils were collected on collodion films.
Discovery of Isotopes of the Transuranium Elements with 93 <= Z <= 98
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