PAPER STRENGTH ADDITIVE APPLICATION DEVICE, SHEET MANUFACTURING APPARATUS, AND SHEET AND PAPER STRENGTH ADDITIVE APPLICATION METHOD

摘要

To provide a paper strength additive application device which can suppress occurrence of paper powder from a sheet when performing printing on, for example, a paper-made sheet, and a sheet manufacturing apparatus and a sheet and paper strength additive application method.SOLUTION: A paper strength additive application device comprises: a liquid agent supply part supplying a liquid agent containing a paper strength additive; and an ink jet head having nozzles discharging the liquid agent supplied from the liquid agent supply part, and has a paper strength additive application part applying the liquid agent discharged from the nozzles. The ink jet head preferentially or selectively applies the liquid agent to an edge portion of the sheet.SELECTED DRAWING: Figure 3