Cooling methods for ultrasonic forming and bonding of polymeric webs
AssigneeThe Procter & Gamble Company
InventorsTodd Douglas Lenser, Randall Allen Myers, Gerald F. Rocha, Nicholas G. Lehoullier
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Abstract
Methods and apparatuses for manufacturing portions of absorbent articles may include or facilitate conveying a substrate through a nip formed between a first device and a second device, transmitting vibrational energy from the second device toward the first device via the nip to alter the substrate, and cooling the second device by transferring thermal energy from the second device.
Claims20
A method of manufacturing portions of absorbent articles comprising:
- conveying a substrate through a nip formed between a first device and a second device;
- transmitting vibrational energy from the second device toward the first device via the nip to alter the substrate;
- providing a projection extending from the second device, wherein the projection is in thermal communication with the second device, and wherein the projection is positioned proximate to a working surface of the second device;
- cooling the second device by transferring thermal energy from the second device to the projection, wherein the step of cooling the second device comprises cooling the second device at a location that is within about 0.5mm to about 15mm from the working surface;
- and
- conveying a chilled fluid over the projection to cool the projection.
A method of manufacturing portions of absorbent articles comprising:
- conveying a substrate through a nip formed between a first device and a second device;
- transmitting vibrational energy from the second device toward the first device via the nip to alter the substrate;
- providing a cavity in the second device proximate to a working surface of the second device;
- conveying a chilled fluid through the cavity;
- and
- cooling the second device by transferring thermal energy from the second device to the chilled fluid, wherein the step of cooling the second device comprises cooling the second device at a location that is within about 0.5mm to about 15mm from the working surface.
A method of manufacturing portions of absorbent articles comprising:
- conveying a substrate through a nip formed between a first device and a second device;
- transmitting vibrational energy from the second device toward the first device via the nip to alter the substrate;
- providing a plurality of cavities in the second device proximate to a working surface of the second device;
- conveying a fluid through the plurality of cavities;
- and
- cooling the second device by transferring thermal energy from the second device to the fluid, wherein the step of cooling the second device comprises cooling the second device at a location that is within about 0.5mm to about 15mm from the working surface.
Dependencies are inferred from the claim text.