Films and laminates for absorbent articles
AssigneeFitesa Film Products LLC
InventorsAndrew D. Maschino, Brian C. Loomis, Paul Eugene Thomas
Life of this patent
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Abstract
A film for use in an absorbent article includes a first side and a second side opposite the first side, and a plurality of apertured protuberances arranged in a pattern having 60 to 120 protuberances per linear inch in at least one direction. Each of the protuberances includes a continuous sidewall extending from the first side. The second side has a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures. The film has a melt index of at least about 8 g/10 min, and an air permeability of at least about 80 m3/m2/min.
Claims23
A film for use in an absorbent article, the film comprising:
- a first side and a second side opposite the first side,
- a plurality of apertured protuberances arranged in a pattern having 60 to 120 protuberances per linear inch in at least one direction, each of the protuberances comprising a continuous sidewall extending from the first side, the second side having a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures,
- wherein the film has a melt index of at least about 8 g/10 min and an air permeability of at least about 80 m3/m2/min to 204.4 m3/m2/min.
A laminate for use in an absorbent article, the laminate comprising
- a film layer having a first side and a second side opposite the first side, the film layer comprising a plurality of apertured protuberances arranged in a pattern having 60 to 120 protuberances per linear inch in at least one direction, each of the protuberances comprising a continuous sidewall extending from the first side, the second side having a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures, wherein the film layer has a melt index of at least about 8 g/10 min and an air permeability of at least about 80 m3/m2/min to 204.4 m3/m2/min;
- and
- a nonwoven layer laminated to the second side of the film layer, the nonwoven layer comprising a plurality of fibers attached to the formed film at the land areas of the film layer.
A laminate for use in an absorbent article, the laminate comprising:
- a first film layer having a first side and a second side opposite the first side, the first film layer comprising a first plurality of apertured protuberances arranged in a pattern having 60 to 120 protuberances per linear inch in at least one direction, each of the first plurality of apertured protuberances comprising a continuous sidewall extending from the first side, the second side having a first plurality of apertures aligned with the first plurality of apertured protuberances and first land areas in between each of the first plurality of apertures, wherein the first film layer has a melt index of at least about 8 g/10 min and an air permeability of at least about 80 m3/m2/min;
- and
- a second film layer having a first side and a second side opposite the first side, the second film layer comprising a second plurality of apertured protuberances arranged in a pattern having 3 to 40 protuberances per linear inch in at least one direction, each of the second plurality of apertured protuberances comprising a continuous sidewall extending from the first side, the second side having a second plurality of apertures aligned with the second plurality of apertured protuberances and second land areas in between each of the second plurality of apertures,
- wherein the second side of the first film layer is attached to the second side of the second film layer.
A method for making a material for an absorbent article, the method comprising:
- vacuum forming a plurality of apertured protuberances into a polymer web to create a first film using a forming structure comprising a pattern of 60 to 120 apertures per linear inch in at least one direction, wherein the first film has a melt index of at least about 8 g/10 min and an air porosity of at least about 80 m3/m2/min to 204.4 m3/m2/min.
Dependencies are inferred from the claim text.