| 摘要 |
PURPOSE:To prevent the direction of prepregs for pin lamination from being arranged erroneously when they are shifted to a next process after they are perforated. CONSTITUTION:A mark is put on one side edge of prepregs for pin lamination. The mark can be displayed by writing a line 3, by means of an aqueous or oily ink, on the edge (the cut end) of the prepregs which have been cut to a prescribed size one by one or in the state of a laminated product 1. Perforations 2 for pin lamination are made by a punching machine or a drilling machine by using the line 3 as a criterion. After being perforated, the prepregs are piled up by arranging the position of the line 3 in order, and they are shifted to a next process by using the line as a criterion. The number of the line 3, its writing position and its writing process are not limited especially, and it is sufficient to write one to three lines by using a rubber stamp. It is desirable that the color of the line 3 is black from the viewpoint of a discriminability. |
