发明名称 |
PRINTABLE SUBSTRATES WITH IMPROVED BRIGHTNESS FROM OBAS IN PRESENCE OF MULTIVALENT METAL SALTS |
摘要 |
<p>An article in the form of a paper substrate having a first surface and a second surface; an internal paper sizing agent present in an amount sufficient to impart to the paper substrate an HST value of from about 50 to about 250 seconds; one or more optical brightening agents present in an amount below a "green over" effect excess but sufficient to impart an ISO Brightness value of at least about 92; and a metal salt drying agent mixture of multivalent and monovalent metal drying salts in a molar ratio of multivalent to monovalent cations of from about 3 : 1 to about 1 : 18 to provide a percent ink transferred ("IT%") value equal to or less than about 65% and a black print density value of at least about 1.45. Also, a method for treating the optically brightened paper substrate with a mixture of multivalent and monovalent metal drying salts.</p> |
申请公布号 |
WO2011084396(A1) |
申请公布日期 |
2011.07.14 |
申请号 |
WO2010US60173 |
申请日期 |
2010.12.14 |
申请人 |
INTERNATIONAL PAPER COMPANY;KOENIG, MICHAEL, F. |
发明人 |
KOENIG, MICHAEL, F. |
分类号 |
D21H17/09;B41M5/00;B41M5/42;B41M5/52;D21H17/11;D21H17/65;D21H17/66;D21H19/38;D21H19/64;D21H21/30 |
主分类号 |
D21H17/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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