Apparatuses and Methods For Seaming Substrates
AssigneeThe Procter & Gamble Company
InventorsUwe Schneider, Horst Blessing, Hans Adolf Jackels
Life of this patent
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Abstract
A method of joining substrate portions includes positioning the substrate portions such that the substrate portions overlap at an overlap area. The substrate portions each have a melting temperature and an outer surface. A fluid is heated to a temperature sufficient to at least partially melt the substrate portions. A jet of the heated fluid is directed from a fluid orifice onto the substrate portions at the overlap area. The heated fluid penetrates at least one of the outer surfaces of the substrate portions. The substrate portions are at least partially melted using the heated fluid. The substrate portions are compressed to join the substrate portions together at the overlap area.
Claims20
A method for forming a seam, the method comprising the steps of:
- rotating a heating cylinder about an axis of rotation, the forming cylinder comprising a plurality of fluid outlets disposed about a periphery of the heating cylinder, wherein each of the plurality of fluid outlets are in communication with a fluid chamber;
- advancing a first substrate in a machine direction on the forming cylinder;
- advancing a second substrate in the machine direction wherein the first substrate is between the second substrate and the forming cylinder;
- heating a fluid within the fluid chamber to a temperature sufficient to at least partially melt the substrates;
- directing a jet of the heated fluid through the fluid outlet and onto an overlap area of the first and second substrates;
- partially melting the overlap area;
- advancing the first and second substrates to a nip formed between an anvil cylinder and a pressure applying cylinder;
- rotating the anvil cylinder and the pressure applying cylinder;
- and
- compressing the overlap area in a nip between the pressure applying member and the anvil cylinder.
A method for forming a seam, the method comprising the steps of:
- rotating a heating cylinder about an axis of rotation, the forming cylinder comprising a plurality of fluid outlets disposed about a periphery of the heating cylinder, wherein each of the plurality of fluid outlets are in communication with a fluid chamber;
- advancing a first substrate in a machine direction on the forming cylinder;
- advancing a second substrate in the machine direction wherein the first substrate is between the second substrate and the forming cylinder;
- heating a fluid within the fluid chamber to a temperature sufficient to at least partially melt the substrates;
- directing a jet of the heated fluid through the fluid outlet and onto an overlap area of the first and second substrates;
- partially melting the overlap area;
- removing the first and second substrates from the heating cylinder;
- advancing the first and second substrates to a nip formed between an anvil cylinder and a pressure applying cylinder;
- rotating the anvil cylinder and the pressure applying cylinder;
- and
- compressing the overlap area in a nip between the pressure applying member and the anvil cylinder, wherein the pressure applying member comprises a pressure applying member configured to engage the anvil cylinder.
A method for forming a seam, the method comprising the steps of:
- rotating a heating cylinder about an axis of rotation, the forming cylinder comprising a plurality of fluid outlets disposed about a periphery of the heating cylinder, wherein each of the plurality of fluid outlets are in communication with a fluid chamber;
- advancing a first substrate in a machine direction on the forming cylinder;
- advancing a second substrate in the machine direction wherein the first substrate is between the second substrate and the forming cylinder;
- heating a fluid within the fluid chamber to a temperature sufficient to at least partially melt the substrates;
- directing a jet of the heated fluid through the fluid outlet and onto an overlap area of the first and second substrates;
- partially melting the overlap area;
- removing the first and second substrates from the heating cylinder;
- advancing the first and second substrates between an anvil block and a pressure applying member;
- traversing at least one of the anvil block and the pressure applying member;
- and
- compressing the overlap area between the pressure applying member and the anvil block.
Dependencies are inferred from the claim text.