Arjo Wiggins Fine Papers Limited

Laurence Avazzeri

Michel Goguelin

The invention concerns a coated white sheet having 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 being offset-printable with no mottling, said coated sheet comprising at least one base sheet and a printable white surface coat having a pigmented composition which comprises: &#x2014;at least some white coating pigments and at least one coating binder; &#x2014;at least one fluorescent whitening agent in a total quantity of 1% dry weight or more with respect to the dry weight of said pigments; &#x2014;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 pigments. The invention also concerns a method for producing said coated sheet by curtain coating said pigmented composition.

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Saint Martin au Laert, France

Laurence Avazzeri