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US 12,390,373 B2Granted
Machine and a method for manufacturing sanitary products
AssigneeFameccanica.Data S.p.A.
InventorPiero Sabbi
Life of this patent
Estimating the term…
Abstract
A machine and a method for manufacturing sanitary product with an hourglass shaped absorbent core, such as a panty liner or a light-inco diaper. The machine and the method allow shaping of the core into an hourglass shape with minimized scrap.
Claims12
A method for manufacturing sanitary products, comprising:
- providing a first core material comprising a first web material,
- providing a second core material comprising a second web material,
- providing a carrier material comprising a third web material,
- feeding each of the first core material, the second core material and the carrier material in a machine direction,
- cutting the first core material into a first pattern comprising first pairs of oppositely tapering figures, each first pair of oppositely tapering figures comprising a first tapering figure and a second tapering figure adjacent in the machine direction and staggered in a cross direction transverse to the machine direction,
- spacing the first tapering figure from the second tapering figure in the machine direction,
- laying the first tapering figure and the second tapering figure spaced in the machine direction and staggered in the cross direction onto the carrier material,
- cutting the second core material into a second pattern comprising second pairs of oppositely tapering figures, each second pair of oppositely tapering figures comprising a third tapering figure and a fourth tapering figure adjacent in the machine direction and staggered in the cross direction, the third tapering figure and the fourth tapering figure having a reverse tapering with respect to the first tapering figure and the second tapering figure, respectively,
- spacing the third tapering figure from the fourth tapering figure in the machine direction,
- laying the third tapering figure and the fourth tapering figure spaced in the machine direction and staggered in the cross direction onto the carrier material to overlap a portion of the third tapering figure with a portion of the first tapering figure into a first hourglass shape, and a portion of the fourth tapering figure with a portion of the second tapering figure into a second hourglass shape.
7 more elements
A machine for manufacturing sanitary products, comprising:
- a first processing unit for a first core material, the first core material comprising a first web material,
- a second processing unit for a second core material, the second core material comprising a second web material,
- a supply unit for a carrier material, the carrier material comprising a third web material,
- wherein the machine is configured to feed each of the first core material, the second core material and the carrier material in a machine direction,
- wherein the supply unit is configured to route the carrier material through the machine in the machine direction to meet the first processing unit and the second processing unit,
- wherein the first processing unit comprises:
- a first cutting device for cutting the first core material into a first pattern comprising first pairs of oppositely tapering figures, each first pair of oppositely tapering figures of the first pattern comprising a first tapering figure and a second tapering figure adjacent in the machine direction and staggered in a cross direction transverse to the machine direction,
- a first spacer device configured for spacing the first tapering figure from the second tapering figure in the machine direction,
- a first laydown device configured for laying the first tapering figure and the second tapering figure staggered in the cross direction and spaced in the machine direction onto the carrier material,
- wherein the second processing unit comprises:
- a second cutting device configured for cutting the second core material into a second pattern comprising second pairs of oppositely tapering figures of the second pattern, each second pair of oppositely tapering figures comprising a third tapering figure and a fourth tapering figure adjacent in the machine direction and staggered in the cross direction transverse to the machine direction, the third tapering figure and the fourth tapering figure having a reverse tapering with respect to the first tapering figure and the second tapering figure, respectively,
- a second spacer device configured for spacing the third tapering figure from the fourth tapering figure in the machine direction,
- a second laydown device configured for laying the third tapering figure and the fourth tapering figure staggered in the cross direction and spaced in the machine direction onto the carrier material to overlap a portion of the third tapering figure with a portion of the first tapering figure into a first hourglass shape, and a portion of the fourth tapering figure with a portion of the second tapering figure into a second hourglass shape.
10 more elements
Dependencies are inferred from the claim text.