| 摘要 |
PURPOSE:To prevent double feeding even in continuous copying and even under unfavorable conditions of a high-speed machine and to provide high retouchability by making pores having a specified diameter or below in a transparent or translucent sheet having high gas permeability to regulate the gas permeability to a specified value or below. CONSTITUTION:Pores having <=100mum diameter are made in transparent or translucent paper or film having >=1,000sec/100cc gas permeability by corona discharge treatment or by means of a roll with needles embedded to regulate the gas permeability to <=300sec/100cc. |
