| 摘要 |
PURPOSE:To obtain an original screen plate for photoengraving quickly and easily by depicting the figured line drawings of original designs for screen printing on a film, exposing and developing the same, and washing out the line drawing parts then sripping the densely painted parts of the original designs. CONSTITUTION:Line drawings 2 of the figures which are of 1:1 of the ordered figures or scaled down to about 1:50 or magnified to about 50 times are drawn by using a stationary for drawing with a pencil or black ink on a transparent tracing film, such as a polyester film which is matted on one or both sides, or photosection paper 7 which is printed thereon with sectional blocks in transparent ink. The resulted original picture film is brought into tight contact with a photosensitive peeling film 8, and is exposed and developed. The photosensitive film in the line drawing parts of the original picture is washed out in the stage of developing, whereby line drawings 9 are obtained easily and precisely. The densely painted parts of wide areas are scored with the cut lines at the peripheries in the previous stage; therefore, the unnecessary parts are stripped easily by lifting said parts by hand with the aid of the blade of a cutter or the like as an auxiliary implement. |
