Abstract: Improved method and apparatus for forming soft, bulky absorbent webs including thermoplastic fibers. The web is bonded under conditions that heat the thermoplastic fibers to produce web bonding while avoiding direct contact with the heat source. The apparatus includes a pair of foraminous belts or wires between which the web or webs to be bonded are enclosed. The construction of the foraminous wires and belts is selected to produce the desired degree of bonding and yet maintain separation between the subsequently applied heat source and the web or webs. The combination of the web and belts or wires is then directed under tension to a heat source which may be, for example, a series of heated cans, and the opposite sides of the combination are alternately contacted by the surfaces. After heating, the web is allowed to cool and retains its bonded configuration determined by the structure of the wires or belts and the content of the web.

Abstract: Improved method and apparatus for forming soft, bulky absorbent webs including thermoplastic fibers. The web is bonded under conditions that heat the thermoplastic fibers to produce web bonding while avoiding direct contact with the heat source. The apparatus includes a pair of foraminous belts or wires between which the web or webs to be bonded are enclosed. The construction of the foraminous wires and belts is selected to produce the desired degree of bonding and yet maintain separation between the subsequently applied heat source and the web or webs. The combination of the web and belts or wires is then directed under tension to a heat source which may be, for example, a series of heated cans, and the opposite sides of the combination are alternately contacted by the surfaces. After heating, the web is allowed to cool and retains its bonded configuration determined by the structure of the wires or belts and the content of the web.