Method for making a stretchable absorbent article
A method for making an absorbent article includes the steps of applying a layer of adhesive composition to a stretchable substrate and applying a layer of particulate superabsorbent material to the stretchable substrate, whereby the adhesive composition holds the superabsorbent material on the substrate.
1. A method for making an absorbent article, at least a portion of which is stretchable during use, said method comprising the steps of:
applying a layer of adhesive composition to a target area on a liquid impermeable, stretchable substrate, the adhesive composition having an open time greater than 0.5 seconds, wherein the stretchable substrate is a first substrate;
applying a first layer of particulate superabsorbent material to the adhesive composition after applying the adhesive composition to the stretchable substrate;
applying a second layer of adhesive composition to said first layer of particulate superabsorbent material after applying said first layer of particulate superabsorbent material to the layer of adhesive composition applied to the substrate, wherein the second layer is applied in a non-uniform manner to define an uncoated surface on the first layer of particulate superabsorbent material;
applying a second layer of particulate superabsorbent material to the second layer of adhesive composition;
applying a third layer of adhesive composition to the second layer of particulate superabsorbent material;
positioning a second substrate in a superposed relationship with the first substrate and in contact with the third layer of adhesive composition to secure the second substrate thereto;
passing the stretchable substrate through a nip within the open time of the adhesive composition to facilitate adhesive bonding between the adhesive composition and the particulate superabsorbent material; and
stretching the stretchable substrate, the layer of particulate superabsorbent material remaining secured to the substrate by the adhesive, and as determined by an Elongation and Recovery Test, the absorbent article having a normalized load value at about 40 percent elongation thereof in the lateral direction of the article of less than about 400 grams-force during each of three cycles of the Elongation and Recovery Test.
2. The method set forth in claim 1 wherein the adhesive composition is a hot-melt adhesive, the step of applying a layer of adhesive composition to the stretchable substrate comprising meltblowing said hot-melt adhesive onto said substrate.
3. The method set forth in claim 1 wherein the second substrate is stretchable.