| 摘要 |
The present invention provides separate paper for a process which is to be used-for producing synthetic leather and which is capable of preventing inclusion of bubbles generated at the time of application of a coating liquid for forming leather therein and providing normal patterns free from bubbles. In order to achieve the purposes, the present invention provides separate paper for a process comprising a substrate and a separate layer formed in at least one side of the substrate, wherein a surface of the separate layer has polygonal shaped figures which are as a combination thereof a surface view of a repeated hills-and-valleys pattern of the separate layer, and at least one side of each polygon is set so as to be at an acute angle to the direction of applying a synthetic resin paste for forming synthetic leather on the separate layer; the paper wherein a surface of the separate layer has a combination of closed-outline figures which is a view of a repeated hills-and-valleys pattern, wherein a curved-line portion of the-closed-outline figure is an out-curved convex curve and crosses the application direction of the synthetic resin paste for forming synthetic leather on the separate layer, and the paper wherein the side faces of the valley part of the pattern on the separate layer are at an angle of 30 degrees or higher to the perpendicular line of the substrate.
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