Nonwoven web and film laminate with improved strength and method of making the same
AssigneeKimberly-Clark Worldwide, Inc.
InventorsSusan Elaine Shawver, Hughey Kenneth Jeffries, Simon Kwame Ofosu, Jay Sheldon Shultz, Peter Michlovich Kobylivker, Dwyana Marchael Barrett, Patrick John Notheis, Stephen Carl Meyer, Nathan Allen Genke
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Abstract
There is disclosed a nonwoven web/film laminate for use as a fabric in personal care products. The laminate is formed of at least two layers in an SF formation. The spunbond (S) layer of the laminate is formed of preferably metallocene catalyzed polypropylene. The film (F) layer is formed of a polyolefin which may be metallocene-catalyzed.
Claims9
A breathable barrier film and nonwoven laminate with improved tear strength over comparable laminates utilizing conventional catalyzed propylene nonwoven webs, comprising:
- A layer of inelastic spunbond polyolefin fibers and a layer of breathable film wherein the spunbond layer is of a single site catalyzed polyolefin;
- and the film includes a polyolefin.
A breathable barrier film and nonwoven laminate with improved tear strength over comparable laminates utilizing conventional catalyzed propylene nonwoven webs commprising:
- A layer of inelastic spunbond polyolefin fibers and a layer of breathable film wherein the spunbond layer is of inelastic metallocene-catalyzed polypropylene fibers of less than 2.5 dpf;
- and the film includes a polyolefin, and further wherein the level of breathabiliy is greater than 250 g/m2/24 hours.
Dependencies are inferred from the claim text.