| 摘要 |
PURPOSE: To provide a composite sheet excellent in both of filtering capacity and strength, reducing a printing defect especially in a case used as stencil paper for thermal screen printing, excellent in ink permeability and having sufficient rigidity. CONSTITUTION: A composite sheet is obtained by fusing a nonwoven fabric composed of a thermoplastic resin fiber to the single surface of a thermoplastic resin sheet and, in the cross section of this composite sheet, the number (b) of the fibers fused to the film (c) is 1-30% of the number of fibers in a boundary region (d). |
