| 摘要 |
<p>A process for applying a non-uniform coating of foamed adhesive to a substrate, wherein a quantity of foamed adhesive is initially applied to the substrate, characterized in that a plurality of grooves are generated in the foam. The adhesive may comprise an aqueous emulsion of a latex and foaming agent, the adhesive preferably comprising a mixture of an anionic and an amphoteric surfactant.</p> |
