| 摘要 |
PROBLEM TO BE SOLVED: To provide electrophotographic paper suppressed the occurrence of curling while it contains a high percentage of used paper pulp. SOLUTION: This electrophotographic paper is obtained by paper-making a paper-making raw material containing 70 mass% or more used paper pulp, and its ash content (based on Japanese Industrial Standards P 8251) is 6% or more. The charge density of disaggregated pulp slurry filtrate obtained by disaggregating the obtained electrophotographic paper based on JIS P 8220 is 0.7-1.4 Meq/g, and air permeability (based on JIS P 8117) is 25 sec-55 sec. COPYRIGHT: (C)2010,JPO&INPIT
|
