Photographic reflection print material with improved keeping pro

Details Photographic reflection print material with improved keeping pro Photographic reflection print material with improved keeping pro

1990-07-25

1991-02-19

Lacey, David L.

Paper making and fiber liberation

Processes and products

With coating after drying

162183, 162184, 162185, 162169, 162158, 1621814, 1621812, 427326, 427391, D21H 1910

Patent

active

049941470

ABSTRACT:
A method of making a photographic paper support having improved raw stock keeping characteristics by an internal acid sizing step and an external alkaline sizing step to achieve a water extractable pH of from 6 to 9.5.

REFERENCES:
patent: 4288287 (1981-09-01), Miyama et al.
patent: 4335184 (1982-06-01), Miyamoto et al.
patent: 4504576 (1985-03-01), Kemme
patent: 4508751 (1985-04-01), Tamagawa et al.
patent: 4675245 (1987-06-01), Von Meer

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