Stretch laminate having novel adhesive pattern and methods of making the same

摘要

A stretch laminate having a first nonwoven material, a second nonwoven material, an elastic film. The elastic film has a first longitudinal side edge and a second longitudinal side edge. The stretch laminate further has a first plane of adhesive having differing amounts of adhesive as measured laterally within the stretch laminate. The differing amounts of adhesive being controllable. The first plane of adhesive being interposed between the first nonwoven material and the elastic film. The stretch laminate further has a second plane of adhesive having differing amounts of adhesive as measured laterally within the stretch laminate. The differing amounts of adhesive being controllable. The second plane of adhesive being interposed between the second nonwoven material and the elastic film. Each of the above elements are substantially laminated together to form a laminate. The laminate is activated to form the stretch laminate.

主权项

1. A stretch laminate comprising:
a first nonwoven material; a second nonwoven material; an elastic film, said elastic film being interposed between said first and second nonwoven materials, said elastic film having a first longitudinal side edge and a second longitudinal side edge, wherein portions of said first and second nonwoven materials extend laterally outboard of said first and second longitudinal side edges of said elastic film; a first plane of adhesive having differing amounts of adhesive as measured laterally within the stretch laminate, said first plane of adhesive being interposed between said first nonwoven material and said elastic film; a second plane of adhesive having differing amounts of adhesive as measured laterally within the stretch laminate, said second plane of adhesive being interposed between said second nonwoven material and said elastic film; wherein at least one of said first plane of adhesive or said second plane of adhesive comprises: a first portion of adhesive being laterally located between said first and second longitudinal side edges of said elastic film, said first portion of adhesive being defined as film adhesive; a second portion of adhesive being laterally located near at least one longitudinal side edge of said elastic film and inboard of said at least one longitudinal side edge, said second portion of adhesive being defined as tackdown adhesive; and a third portion of adhesive being laterally located outboard of said longitudinal side edges of said elastic film to adhere the portions of the first nonwoven material extending laterally outboard of the first and second longitudinal side edges of said elastic film to corresponding portions of the second nonwoven material extending laterally outboard of the first and second longitudinal side edges of said elastic film, said third portion of adhesive being defined as nonwoven adhesive; wherein the tackdown adhesive is present in an amount greater than an amount of the film adhesive and greater than an amount of the nonwoven adhesive; wherein the film adhesive is discontinuous, the tackdown adhesive is continuous, and the nonwoven adhesive is continuous; wherein the elastic film is applied discontinuously between said first and second nonwoven material; wherein each of the above elements being substantially laminated together to form a laminate; and wherein said laminate is activated to form the stretch laminate.