| 摘要 |
659,036. Loaded or coated printing paper. NATIONAL CASH REGISTER CO. Sept. 16, 1949, No. 23929. Convention date, Nov. 18, 1948. [Class 96] Printing paper, resistant to ink bleeding, contains as absorbent loading or coating material, a needle-shaped crystalline clay, e.g. attapulgite or halloysite, with starch, casein, polyvinyl alcohol, or animal glue, is applied as a coating 0.0005 inch thick, and the paper may then be calendered. |
