| US 7,575,802 B2 | ||
| Coated printing papers | ||
| Akinobu Chatani, Tokyo (Japan); Koji Okomori, Tokyo (Japan); Hiroshi Koyamoto, Tokyo (Japan); Hitoshi Nagao, Tokyo (Japan); and Hirokazu Morii, Tokyo (Japan) | ||
| Assigned to Nippon Paper Industries Co., Ltd., Tokyo (Japan) | ||
| Filed on Dec. 01, 2005, as Appl. No. 11/290,833. | ||
| Claims priority of application No. 2004-350477 (JP), filed on Dec. 02, 2004. | ||
| Prior Publication US 2006/0137841 A1, Jun. 29, 2006 | ||
| Int. Cl. C08J 7/04 (2006.01) | ||
| U.S. Cl. 428—341 [428/32.34; 428/32.35; 428/195.1; 428/211.1; 428/340] | 16 Claims |
| 1. A coated printing paper comprising a coating layer containing a pigment and an adhesive on a base paper, characterized in that calcium carbonate and a fine titanium oxide powder having a photocatalytic effect are contained in the coating layer and that the coated paper has an oil absorbency of 20 g/m2 or more under pressure and a Bekk smoothness of 75 seconds or less, said fine titanium oxide having a primary particle size of 2 to 150 nm, and a mixture of a fine titanium oxide powder and colloidal silica, or a mixture of a fine titanium oxide powder and colloidal alumina, in a ratio of 5:1-1:5 being used as a pigment. |