| 摘要 |
PURPOSE:To carry out the processing of paper such as watermarking treatment in high efficiency by attaching an impregnating agent to a film, placing the film on a processing sheet and heating the laminate to effect the transfer impregnation, thereby increasing the light-transmittance, etc., of a specific part of the sheet. CONSTITUTION:A film having attached impregnating agent such as wax or paraffin is placed on a sheet to be processed. The film is heated in dots to effect the transfer and impregnation of the impregnating agent to the processing sheet to partly increase the light-transmittance or glossiness of the sheet and obtain the objective processed sheet. |
