Patent ID: 8808842

Claim:
A coated white sheet comprising at least one base sheet and a printable and white surface coat, wherein the coat has a weight of from 10 to 30 g/m 2 dry weight per face, wherein the coat has a pigmented composition which comprises: white coating pigments and at least one coating binder; at least one fluorescence whitening agent in a total quantity of more than 1% dry weight with respect to the dry weight of said coating pigments; at least one support substance for said whitening agent in a total quantity of dry weight of more than 2% with respect to the dry weight of said coating pigments, and wherein the coat has a regular thickness, so that the coated white sheet has a fluorescence intensity of more than 55, measured in accordance with international standard ISO 11475: 2004, by the difference between the value for the CIE whiteness under D65 illuminant and the value for this same CIE whiteness after interposing a filter that eliminates wavelengths shorter than 420 nm, and the coated white sheet is offset-printable with no mottling.