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Defects of color images printed on Kodak papers

Kodak references enumerated the defects resulting from errors in the treatment of the colored sensitive papers it produces, and they are as follows (1): Exposure to white light: produces a yellow fog, and if the exposure is increased, the fog is orange. 2- Increasing exposure: we mean by that increasing exposure time, increasing the temperature, increasing stirring, or increasing the renewal of the activity of the displaying solution, as any of these results in the image becoming darker than the correct amount and increasing its contrast, and it is also possible that the image will have a bluish-green spot. mostly. Decreased visibility: contrast decreases, and a yellowish-green tinge may appear.

Fog resulting from a mistake in using the safety light: we mean by that an increase in the proximity of the paper to the safety light beyond the prescribed limit, or an increase in the power of the lamp, or an increase in exposure to the safety light. These are all errors that result in the appearance of a blue-green haze (cyan) to an extent that depends on the amount of the error. -

kodak booklet printing color negatives,
31 Deterioration of the highlighter solution: If some fixing solution is mixed with the highlighter solution, the dye will become more opaque. As for mixing with acid from the suspension bath or the buffer solution, it will lead to a pink stain that appears clear in high light areas, in addition to delaying the appearance. 6 - Cyan blue haze: It appears particularly clear in certain areas

High lighting, and may result from the use of a stainless steel tank. Exposure solution exhaustion: the image density decreases, and the lighting areas appear

Pink high. Results of mixing with iron: red spots appear if traces of iron are present in the washing water, or iron salts are present on the glazing plates. to green if all parts of the image are not treated equally in the Hardening Bath.

10- Increasing the drying temperature: a yellow tinge appears in the high areas if the temperature exceeds 180 F. 11- Washing: If you do not wash the pictures well, they will appear on and off

The support has blue spots after the end of the demonstration operations. This, and it should be noted that it is not desirable at all for Kodak color sensitive papers in general, to judge the colors of the image before it is completely dry, because the refractive index of the color couplers used in these papers does not agree with the refractive index of gelatin except If completely dry, this is the reason for the milky appearance that coats color photographs on Kodak papers just before they dry. and returns

jack. H. Coote, Color Prints, 2nd edition, p. 221. (1)