Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 6, June 1943)

[ACTIVE]

Washing Photographic Films and Prints in Sea Water

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The use of sea water for washing photographic materials is practical only when a final wash of about 5 minutes in fresh water is used. This final wash removes the residual salts from the material and thus prevents (1) rapid fading of the image caused by these salts in the presence of hypo, and (2) absorption of moisture by the hygroscopic sea salts. The removal of hypo is greatly accelerated during washing in sea water as compared with fresh water. As a result, it is recommended that films and prints be washed in sea water for about one-half of the usually recommended times and finally for about 5 minutes in fresh water. An increase of 20° to 40°F in the temperature of sea water increases the rate of washing by 25 to 50 per cent but washing at as low a temperature as 50°F removes the hypo more rapidly than at 70° F in fresh water. The total time involved in washing in sea water followed by fresh water is somewhat less than that required in fresh water alone.
Publication Date: 1943-06-01
DOI: 10.5594/J09849
Link: https://doi.org/10.5594/J09849
Author(s): G. T. Eaton, J. I. Crabtree

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J09849.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

G. T. Eaton and J. I. Crabtree; Washing Photographic Films and Prints in Sea Water, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 6, June 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J09849

Snippet:

G. T. Eaton and J. I. Crabtree; Washing Photographic Films and Prints in Sea Water, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 6, June 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J09849

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">G. T. Eaton and J. I. Crabtree; <cite>Washing Photographic Films and Prints in Sea Water</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 6, June 1943); SMPTE, 1943. Available at <a href="https://doi.org/10.5594/J09849" target="_blank" rel="noopener">https://doi.org/10.5594/J09849</a></span>

SMPTE's HTML Pub

Preview:

Snippet:

<li>
G. T. Eaton and J. I. Crabtree; <cite id="bib-10-5594-j09849">Washing Photographic Films and Prints in Sea Water</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 40, Issue: 6, June 1943); SMPTE, 1943
<span class="doi">10.5594/J09849</span>
</li>