Patent ID: 8709581
Filing Date: 2014-04-29
Classification: A61F,Y10T

Abstract:
1. A sheet member to be used for manufacturing an absorbent product, the sheet member comprising: a sheet; and an adhesive layer element lying on said sheet and extending in a first direction; wherein said adhesive layer element comprises: a wide width part which is formed by applying string-like adhesive onto said sheet along said first direction with vibration of said adhesive in a second direction orthogonal to said first direction to form a pattern of the string-like adhesive which has an amplitude in the second direction; and a narrow width part which is narrower than said wide width part and which is formed by applying said string-like adhesive onto said sheet along said first direction with or without vibration of said adhesive in said second direction, said narrow width part being continuous with said wide width part, wherein a width of said adhesive layer element, which is the amplitude in said second direction, has a gradual change at a boundary between said wide width part and said narrow width part, the gradual change including multiple oscillating, forms of incrementally smaller amplitudes; wherein the adhesive layer element includes a plurality of rhombus patterns, each rhombus pattern including multiple oscillating forms of incrementally smaller amplitudes.