Method And Apparatus For Making Disposable Absorbent Article With Absorbent Particulate Polymer Material And Article Made Therewith
First Claim
1. A method of making a disposable absorbent article comprising:
- providing a first support comprising a first grid including a first plurality of cross bars extending substantially parallel to and spaced from one another so as to form channels extending between the first plurality of cross bars;
providing a first printing roll having a first peripheral surface and a first plurality of reservoirs in the first peripheral surface arranged in an array comprising rows extending substantially parallel to and spaced from one another;
depositing absorbent particulate polymer material from the first plurality of reservoirs onto a first substrate disposed on the first grid, while the first support and first printing roll are arranged such that the first plurality of cross bars are substantially parallel to the rows of the first plurality of reservoirs, the absorbent particulate polymer material being deposited on the first substrate in a first pattern such that the absorbent particulate polymer material collects in rows on the first substrate formed between the first plurality of cross bars; and
depositing a thermoplastic adhesive material on the absorbent particulate polymer material and the first substrate to cover the absorbent particulate polymer material on the first substrate and form a first absorbent layer.
1 Assignment
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Accused Products
Abstract
A method for making a disposable absorbent core comprises depositing absorbent particulate polymer material from a plurality of reservoirs in a printing roll onto a substrate disposed on a grid of a support which includes a plurality of cross bars extending substantially parallel to and spaced from one another so as to form channels extending between the plurality of cross bars. The plurality of reservoirs in the first peripheral surface are arranged in an array comprising rows extending substantially parallel to and spaced from one another. The support and printing roll are arranged such that the plurality of cross bars are substantially parallel to the rows of the plurality of reservoirs and the absorbent particulate polymer material is deposited on the substrate in a pattern such that the absorbent particulate polymer material collects in rows on the first substrate formed between the first plurality of cross bars. A thermoplastic adhesive material is deposited on the absorbent particulate polymer material and the substrate to cover the absorbent particulate polymer material on the substrate and form an absorbent layer. A disposable absorbent article and apparatus for making an absorbent article are also disclosed.
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Citations
20 Claims
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1. A method of making a disposable absorbent article comprising:
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providing a first support comprising a first grid including a first plurality of cross bars extending substantially parallel to and spaced from one another so as to form channels extending between the first plurality of cross bars; providing a first printing roll having a first peripheral surface and a first plurality of reservoirs in the first peripheral surface arranged in an array comprising rows extending substantially parallel to and spaced from one another; depositing absorbent particulate polymer material from the first plurality of reservoirs onto a first substrate disposed on the first grid, while the first support and first printing roll are arranged such that the first plurality of cross bars are substantially parallel to the rows of the first plurality of reservoirs, the absorbent particulate polymer material being deposited on the first substrate in a first pattern such that the absorbent particulate polymer material collects in rows on the first substrate formed between the first plurality of cross bars; and depositing a thermoplastic adhesive material on the absorbent particulate polymer material and the first substrate to cover the absorbent particulate polymer material on the first substrate and form a first absorbent layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for making a disposable absorbent article comprising:
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a first absorbent particulate polymer material feeder; a first support comprising a first grid including a first plurality of cross bars extending substantially parallel to and spaced from one another so as to form channels extending between the first plurality of cross bars; a first printing roll for receiving absorbent particulate polymer material from the first absorbent particulate polymer material feeder having a first peripheral surface and a first plurality of reservoirs in the first peripheral surface arranged in an array comprising rows extending substantially parallel to and spaced from one another, the first support and first printing roll arranged such that the first plurality of cross bars are substantially parallel to the rows of the first plurality of reservoirs in the first peripheral surface, so that, when the first printing roll rotates, the first plurality of reservoirs roll receive absorbent particulate polymer material from the first absorbent particulate polymer material feeder and deposit the absorbent particulate polymer material on the first substrate in a first pattern such that the absorbent particulate polymer material collects in rows on the first substrate formed between the first plurality of cross bars; and a first thermoplastic adhesive material applicator for applying thermoplastic adhesive material applicator on the absorbent particulate polymer material and the first substrate to cover the absorbent particulate polymer material on the first substrate and form a first absorbent layer. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification