案卷封皮折叠法装订卷宗,主要是折叠封皮的厚度难留,现在又提倡立小卷,小卷封皮更难折。折叠时,厚度位置留得过大或过小都不平整。如何解决这一问题,在多年的实践中,我摸索到一点经验,方法是:①折小卷封皮,买三根厚度不等的有机玻璃直尺,以小卷材料厚度选择好直尺的厚度(一根直尺厚度不够,可用两根 Case fold folding method Binding volumes, mainly the thickness of the fold cover difficult to stay, and now also advocated the establishment of small volumes, small volume envelope more difficult to fold. Folding, the thickness of the position left too large or too small are not flat. How to solve this problem in many years of practice, I groped a little experience, the method is: ① fold the small envelope, buy three different thickness plexiglass ruler, the thickness of the small roll of material to choose the thickness of the ruler ( A ruler thickness is not enough, you can use two