Abstract: A method for dispersing oil-soluble photographic additives into a hydrophilic colloid composition is disclosed characterized by the use of lecithin in conjunction with an anionic surface active agent containing an --SO.sub.3 M or --OSO.sub.3 M moiety wherein M represents a cation and a hydrophobic group having 8 to 30 carbon atoms.
Type:
Grant
Filed:
January 18, 1979
Date of Patent:
July 8, 1980
Assignee:
Fuji Photo Film Co., Ltd.
Inventors:
Masakazu Yoneyama, Yasuo Mukunoki, Takeshi Mikami, Jun Sasaki