Photographic paper
AssigneeFujifilm Manufacturing Europe B.V.
InventorsWilhelmus Johannes Martinus Der Kinderen, Mattijs De Munnik, Dennis Imre Lubertus Termeczky, Elisabeth Maria Waltherus Van Limpt
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Abstract
A photographic paper comprising a base layer having an average surface roughness (Sa) of at least 0.7 pm and an outer-most layer comprising a hydrophilic colloid binder and colloidal silica, wherein: (i) the weight ratio of colloidal silica to hydrophilic colloid binder in the outer-most layer is 0.05:1 to 0.28:1; and (ii) the amount of colloidal silica present in the outer-most layer is in the range of 8 mg/m2 to 280 mg/m2. The photographic paper is useful for preparing ‘non-noisy’ photobooks.
Claims16
A photographic paper comprising a base layer having an average surface roughness (Sa) of at least 0.7 μm and an outer-most layer comprising a hydrophilic colloid binder and colloidal silica and one or more light sensitive emulsion layers between the outer-most layer and the base layer, wherein:
- (i) the weight ratio of colloidal silica to hydrophilic colloid binder in the outer-most layer is 0.05:1 to 0.28:1;
- (ii) the amount of colloidal silica present in the outer-most layer is in the range of 8 mg/m2 to 225 mg/m2;
- and
- (iii) the colloidal silica has a mean particle size of 3 to 70 nm.
A method for preparing a photographic paper comprising applying a composition to a base layer having an average surface roughness (Sa) of at least 0.7 μm and one or more light-sensitive emulsion layers, wherein:
- the composition comprises a hydrophilic colloid binder and colloidal silica in a weight ratio of 0.05:1 to 0.28:1;
- the colloidal silica has a mean particle size of 3 to 70 nm;
- and the amount of colloidal silica provided by the composition is in the range of 8 mg/m2 to 225 mg/m2 of colloidal silica.
Dependencies are inferred from the claim text.