To provide a method for coloring the top edge, the bottom and the fore edge of a booklet which makes it possible to efficiently color only the top edge, the bottom and the fore edge without coloring the back.
When a large number of booklets B reaches inside a main body 1404 by conveyance along an upper conveyance route 6, dye is blown against the top edge T and the bottom C of the booklet B from nozzles 16A and against the fore edge K of the booklet B from a nozzle 16B, and thereby the top edge T, the bottom C and the fore edge K of the booklet B are colored. Since air from air nozzles 20 is jetted in the extended direction of the direction of extension of the back S from the opposite ends of the direction of extension of the back S on the occasion, the dye blown from the nozzles 16A and 16B does not penetrate into the back S and only the top edge T, the bottom C and the fore edge K of the booklet B are colored.
JPS5829500A | 1983-02-21 | |||
JPH03109966A | 1991-05-09 | |||
JPH0439039A | 1992-02-10 | |||
JPH11221504A | 1999-08-17 | |||
JP2001276733A | 2001-10-09 |