发明申请
US20090020247A1 Paper with improved stiffness and bulk and method for making same 失效
具有改善刚度和体积的纸张及其制造方法

Paper with improved stiffness and bulk and method for making same
摘要:
The invention provides a three layered reprographic paper having improved strength, stiffness and curl resistance properties, and a method for making same. The paper has a central core layer made largely of cellulose and bulked with a bulking agent such as a diamide salt. A starch-based metered size press coating is pressed on both sides of the core layer, wherein the starch has a high solid content. The coating forms a three layered paper having an I-beam arrangement with high strength outer layers surrounding a low density core.
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