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US 2023/0107550 A1Published application
Method of making a nonwoven web
AssigneeKimberly-Clark Worldwide, Inc.
InventorsTimothy D. Ferguson, David A. Palzewicz, Daniel M. Nussbaum, Tom R. Belau
Life of this patent
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Abstract
Soft point bonded nonwoven webs, and methods of making the same, are described that utilize a pattern of small, discrete bond points in a sequent pattern that together form macro-elements. The macro-elements are themselves positioned and aligned within a pattern such that mechanical stretching operations on the point bonded nonwoven webs yields soft and bulky fabrics but with reduced incidence of tearing or rupturing of the individual bond points.
Claims7
A fabric comprising:
- a nonwoven web of thermoplastic polymer fibers;
- a pattern of discrete individual bond points having a maximum dimension less than about 1.25 the bond points are arranged in a sequent pattern with an edge-to-edge spacing of less than 0.8 mm and form individual macro-elements;
- the macro-elements extend substantially in the machine-direction and have a machine-direction length between about 5 mm and about 25 mm;
- adjacent the macro-elements are unbonded pockets having an area between about 20 and about 50 mm2;
- and
- wherein the nonwoven web has a total bond area of between about 5 and about 20% and wherein some but less than 2% of the individual bond points are ruptured from the nonwoven web being stretched in both cross-direction and the machine direction.
3 more elements
Dependencies are inferred from the claim text.