OFFSET-PRINTABLE COATED WHITE PAPER HAVING A HIGH FLUORESCENCE INTENSITY AND METHOD FOR PRODUCING SAME

摘要

The invention concerns a coated white paper having a fluorescence intensity higher than 55 as measured, in accordance with international standard ISO 11475: 2004, by the difference between the value of the CIE whiteness under the D65 illuminant and the value of this same CIE whiteness after the interposition of a filter that eliminates wavelengths shorter than 420 nm, and being offset-printable with no mottling defects, said coated paper comprising at least one base sheet and a printable white surface layer having a pigment composition that includes: at least some white coating pigments and at least one coating binder; at least one fluorescent whitening agent in a total quantity greater than or equal to 1% by dry weight relative to the dry weight of said pigments; at least one support substance for said whitening agent in a total quantity by dry weight greater than 2% relative to the dry weight of said pigments. The invention also concerns a method for producing this coated white paper by curtain coating said pigment composition.