A manufacturing device is provided, within a range in the rotation direction of the upper half of an anvil roll (70), in the order from the upstream side in the rotation direction of the anvil roll, with a first sheet feeding unit (80), a recess forming unit (90), a particulate material feeding device (100), and a second sheet feeding unit (150) and further a welding unit (160) provided on the downstream side of the second sheet feeding unit (150) in the rotation direction. The anvil roll (70) has a large number of concaves (71), projections (72) provided in a portion among the concaves (71), so as to surround each of the concaves (71), and a unit to suck air in the concaves (71). For each concave, the projections (72) are minute dot-shaped projections (72) arranged only in one row at intervals in the direction surrounding the concave (71). The peripheral edge of each receiving recess (201c) in the first sheet (201) coincides with the edges on the receiving recess (201c) side of the dot-shaped projections (72) surrounding the receiving recess (201c).
