Bonded laminate including a formed nonwoven substrate

Patent metadata

Field	Value
Publication number	US-11833805-B2
Application number	US-202117241107-A
Country	US
Kind code	B2
Filing date	Apr 27, 2021
Priority date	Dec 20, 2018
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

Bonded formed laminates, and methods for making bonded formed laminates, are made from multiple layers of formed substrates comprising at least one nonwoven formed substrate which are bonded together at the distal ends or bases of protrusions formed in the substrates. The bonded formed laminate provides a very soft and lofty structure that is sustainable under compression.

First claim

What is claimed is:

1. A laminate comprising:
a first nonwoven formed substrate having a first plane, a first upper surface, a first lower surface and a plurality of first male protrusions that extend out of the first plane on the first upper surface, each first protrusion having a first distal end and a first sidewall connecting the first distal end to the first upper surface;
a second formed substrate having a second plane, a second upper surface, a second lower surface and a plurality of second male protrusions that extend out of the second plane on the second upper surface, each second protrusion having a second distal end and a second sidewall connecting the second distal end to the second upper surface; and
a plurality of attachment areas connecting the first nonwoven formed substrate to the second formed substrate, wherein each of the attachment areas is directly connected to the first distal ends of the first male protrusions and the second distal ends of the second male protrusions wherein a void is created by the unattached portions of the first and second formed substrates adjacent attachment areas, and wherein the first nonwoven formed substrate and second formed substrate are in contact with each other only at the connection of first distal ends of the first male protrusions and the second distal ends of the second male protrusions, and further wherein the first protrusion and the second protrusion mirror one another about an imaginary horizontal line where the first distal end connects to the second distal end.

2. The laminate of claim 1 , wherein the plurality of first protrusions and the plurality of second protrusions are discrete.

3. The laminate of claim 2 , wherein the first nonwoven formed substrate comprises a first pathway in the first plane surrounding the plurality of first protrusions and a first width in a cross-machine direction and wherein the first pathway forms a continuous network that spans the width of the first nonwoven formed substrate.

4. The laminate of claim 2 , wherein the second formed substrate comprises a second pathway in the second plane surrounding the plurality of second protrusions and a second width in a cross-machine direction and wherein the second pathway forms a continuous network that spans the second width of the second formed substrate.

5. The laminate of claim 1 , comprising a third layer disposed between the first nonwoven formed substrate and the second formed substrate.

6. The laminate of claim 5 , wherein the third layer comprises cellulose.

7. The laminate of claim 5 , wherein the third layer is an inelastic layer.

8. The laminate of claim 1 , comprising a third layer disposed on either the first lower surface or the second lower surface.

9. The laminate of claim 8 , wherein the third layer comprises cellulose.

10. The laminate of claim 8 , wherein the third layer is an inelastic layer.

11. The laminate of claim 2 , wherein the first protrusions are bulbous protrusions.

12. The laminate of claim 2 , wherein the first protrusions comprise looped aligned fibers.

Assignees

• Procter & Gamble

Inventors

• Peck Daniel Charles
• Strube John Brian
• Waldron Matthew William
• Orr Jill Marlene
• Bond Eric Bryan

Classifications

• B32B7/10 Primary

  at least one layer having inter-reactive properties · CPC title

• B32B5/08

  the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres} · CPC title

• B32B23/10

  next to a fibrous or filamentary layer · CPC title

• B32B3/28 Primary

  characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence) · CPC title

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title