<p>A method for surface treatment of a paper substrate and a paper product produced therefrom are disclosed herein. The surface treatment method includes applying a salt-containing solution to at least one surface of a paper substrate by aerosol spraying in a separate step, whereby the salt distribution through the thickness of the treated paper substrate is non-uniform with the highest concentration of salt being present in the outermost portion of the paper substrate. The salt-containing solution contains at least one water-soluble metal salt and is void of any optical brightening agent (OBA).</p>
申请公布号
WO2011112190(A1)
申请公布日期
2011.09.15
申请号
WO2010US26857
申请日期
2010.03.10
申请人
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.;ZHOU, XIAOQI;FU, XULONG;WINGKONO, GRACY