초록 ▼

Apparatus and process for successively fabricating disposable diapers including devices for and the steps of, generally as follows. The components of the diapers are moved in a generally longitudinal path of travel through the apparatus during fabrication of the diapers. Multi-layer interior absorbe

Apparatus and process for successively fabricating disposable diapers including devices for and the steps of, generally as follows. The components of the diapers are moved in a generally longitudinal path of travel through the apparatus during fabrication of the diapers. Multi-layer interior absorbent pads are produced by fiberizing a first wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a bottom layer and fiberizing a second wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a top layer in superimposed relation on the bottom layer as the pads are being moved in their longitudinal path of travel. A top cover sheet and a bottom cover sheet are positioned on either side of the multi-layer pad and are secured to each other along longitudinal and transverse edges to form interconnected diapers which are subsequently severed to complete fabrication of the diapers. Preferably, the apparatus forms a diaper of generally hour-glass configuration with elasticized side portions in which strips of elastic are attached to the longitudinal edges at least in the crotch area.

대표청구항 ▼

An apparatus for successively fabricating disposable diapers, which include a fluid-permeable top cover sheet, a multi-layer fluid-absorbent interior pad positioned under the top cover sheet, and a fluid-impervious bottom cover sheet positioned under the interior pad and secured to the top cover she

An apparatus for successively fabricating disposable diapers, which include a fluid-permeable top cover sheet, a multi-layer fluid-absorbent interior pad positioned under the top cover sheet, and a fluid-impervious bottom cover sheet positioned under the interior pad and secured to the top cover sheet along longitudinal and transverse edges thereon, said apparatus comprising: feeding means for moving components of the diapers in a generally longitudinal path of travel through said apparatus during fabrication of the disposable diapers; means for producing spaced-apart multi-layer interior absorbent pads while the pads are being moved in the generally longitudinal path of travel including means for supplying and positioning a first sheet of crepe tissue for longitudinal travel through said apparatus by said feeding means, first means for fiberizing a first wet-pressed cellulosic fiber sheet and for air-laying the fiberized fibers into a bottom layer on top of the first sheet of crepe tissue, means for supplying and positioning a second sheet of crepe tissue on top of the bottom layer of fiberized fibers for longitudinal travel through said apparatus by said feeding means, second means for fiberizing a second wet-pressed cellulosic fiber sheet and for air-laying the fiberized fibers into a top layer in superimposed position on the bottom layer and on top of the second sheet of crepe tissue, and means for supplying and positioning a third sheet of crepe tissue on top of the top layer of fiberized fibers for stabilizing the layers of fiberized fibers and for forming multi-layer pads as the pads are being moved in their generally longitudinal path of travel; means for supplying and positioning a continuous fluid-permeable top cover sheet which is somewhat wider than the interior pads in superimposed relationship on top of the interior pads as they are being moved in their longitudinal path of travel including means for applying adhesive to the top cover sheet along longitudinal edges thereof and at spaced locations transversely across the top cover sheet for positioning between spaced-apart interior pads; means for supplying and positioning a continuous fluid-impervious bottom cover sheet of generally the same width as the top cover sheet under the interior pads in longitudinal edge alignment with the top cover sheet; means for pressing the longitudinal edges and transverse sections of the top cover sheet and bottom cover sheet between the spaced-apart interior pads together with each other for adhesively securing these areas together with the adhesive applied to the top cover sheet for forming a series of interconnected disposable diapers as they are being moved in the longitudinal path of travel; and severing means for intermittently transversely severing the interconnected disposable diapers transversely across the areas between spaced-apart interior pads for forming individual disposable diapers.