| 摘要 |
Dulled, black and white and colour photographic materials include in at least one layer, for example a silver halide, protective, filter or NC layer, from 5 to 50%, preferably from 7.5 to 20%, by weight, calculated on the dry weight of the binding agent in the layer, of a dispersion of a polyvinyl chloride or vinyl chloride copolymer produced by micro-suspension or seed polymerisation. |
