ELASTIC STRUCTURE FOR ABSORBENT SANITARY PRODUCTS, AND A METHOD AND APPARATUS FOR ITS PRODUCTION

摘要

An elastic structure for absorbent sanitary products, comprising a sleeve comprising a first layer and a second layer overlapping each other, at least one elastic thread, and a plurality of first connecting portions spaced apart in a longitudinal direction, wherein each of said first connecting portions comprises two first welds arranged on opposite sides of the thread, wherein the first welds weld said first and second layers to each other in a first longitudinal portion of said sleeve, and a plurality of second connecting portions spaced apart in the longitudinal direction, wherein each of said second connecting portions comprises at least one second weld, wherein said second welds weld said first and second layers to each other in a second longitudinal portion of said sleeve without axially connecting the thread to said second longitudinal portion of the sleeve.

主权项

1. An elastic structure for absorbent sanitary products, comprising
a sleeve comprising a first layer and a second layer overlapping each other, at least one elastic thread which extends within said sleeve in a longitudinal direction; and a plurality of first connecting portions spaced apart in the longitudinal direction, wherein each of said first connecting portions comprises two first welds arranged on opposite sides of the thread, wherein the first welds weld said first layer and said second layer to each other in a first longitudinal portion of said sleeve, and wherein said first welds of each of said first connecting portions have respective proximal surfaces facing the thread spaced apart by a distance, less than the diameter of the untensioned thread, in order to anchor the thread to first said longitudinal portion of the sleeve, characterized in that it comprises a plurality of second connecting portions spaced apart in the longitudinal direction, wherein each of said second connecting portions comprises at least one second weld, wherein said second welds weld said first layer and said second layer to each other in a second longitudinal portion of said sleeve without axially connecting the thread to said second longitudinal portion of the sleeve.