Even it smears due to any of the inorganic materials and organic materials can be reliably removed, and it is unnecessary to provide desmear treatment and desmear treatment device for waste water treatment using the drug. Desmear treatment of the present invention, in the desmear processing method of circuit board material having laminated insulating layer and a conductive layer made of a resin containing a filler, with respect to the printed board material having a wavelength of less than 220nm is irradiated with ultraviolet rays UV irradiation of the treatment process, the ultraviolet irradiation treating process characterized by having a physical vibration process to impart physical vibration to a wiring board via the material.
展开▼
