Deacidification method and apparatus of book material

摘要

There is provided a method and apparatus 10 for deacidifying a cellulosic material 60, particularly a bookbinding or folded other cellulosic material having a book, magazine and spine 62. The method includes the steps of contacting the material with a processing medium, creating a relative velocity of the material 60 at a predetermined velocity between the processing medium in a direction generally parallel to the spine 62 of the material 60, Includes the step of dispensing the treatment medium by the injector toward the material 60 in a generally vertical direction to the spines 62 of the material 60 during a period of time such that substantially all of the material 60 is brought into contact with the treatment medium do. After processing, any extra processing media is removed from material 60 and any processing media thus removed is sent to holding tank 72 for subsequent reuse. The movement in the parallel direction is obtained by reciprocating the material 60 in the filled tank 12 with the treatment medium. Further, the material 60 is rotatable about the central axis of the treatment tank 12. [ A preferred embodiment of the present invention includes a processing tank 12 for receiving a processing medium and a plurality of material holders 40 and spines 62 of material 60 disposed in a tank on a reciprocating and rotatable shaft 30, And an injection nozzle (50) for vertically moving the treatment medium relative to the apparatus (10).