Process for the preparation of matted photographic layers contai

Details Process for the preparation of matted photographic layers contai Process for the preparation of matted photographic layers contai

1976-05-18

1979-04-10

Smith, Ronald H.

Coating processes

Nonuniform coating

96 67, 961148, 106135, 264 5, 427384, B05D 500

Patent

active

041489438

ABSTRACT:
In a process for the preparation of matted photographic layers gelatine particles which are dispersed in a water-in-oil emulsion are hardened, separated from the emulsion, redispersed in water, added to the layer which is required to be matted, and the casting composition is applied to a substrate and dried.

REFERENCES:
patent: 2043906 (1936-06-01), Sheppard
patent: 2731347 (1956-01-01), Gray
patent: 3640809 (1972-02-01), Polson et al.
patent: 3666532 (1972-05-01), Reedy et al.
patent: 3717469 (1973-02-01), Slonimsky et al.
Stauff, J. Kolloidchemie, Springer Verlag, Berlin, 1960, pp. 509-519.

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