Nonwoven fabric with improved hand-feel

Patent metadata

Field	Value
Publication number	US-11871883-B2
Application number	US-201715398952-A
Country	US
Kind code	B2
Filing date	Jan 5, 2017
Priority date	Jan 8, 2016
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

Nonwoven fabrics having desirable wiping properties while also providing pleasant tactile properties are provided. The nonwoven fabrics may include a first nonwoven outer layer, a second nonwoven outer layer, and a core layer located between the first nonwoven layer and the second nonwoven outer layer. At least one of the first nonwoven outer layer and the second nonwoven outer layer may include a plurality of blended filaments comprising a blend of a polymer and an elastomeric polyolefin.

First claim

That which is claimed:

1. A nonwoven fabric, comprising:
a first nonwoven outer layer;
a second nonwoven outer layer; and
a core layer located between the first nonwoven layer and the second nonwoven outer layer, the core layer consists of cellulosic fibers;
wherein the first nonwoven outer layer and the second nonwoven outer layer each consist of a plurality of blended staple fibers comprising a blend of (i) a polymer and (ii) an elastomeric polyolefin; wherein the polymer and the elastomeric polyolefin are different; and
wherein the first nonwoven outer layer, the second nonwoven outer layer, and the core layer are mechanically consolidated together, and
wherein a total fiber content of the nonwoven fabric consists of the plurality of blended fibers and the cellulosic fibers.

2. The nonwoven fabric of claim 1 , wherein the blended staple fibers comprise from about 10 wt. % to about 75 wt. % of the elastomeric polyolefin.

3. The nonwoven fabric of claim 1 , wherein the elastomeric polyolefin comprises copolymers of propylene and ethylene.

4. The nonwoven fabric of claim 1 , wherein the polymer of the plurality of blended staple fibers of at least one of the first nonwoven outer layer and the second nonwoven outer layer comprises at least one of a polyolefin, a polyester, a polyamide, or combinations thereof.

5. The nonwoven fabric of claim 1 , wherein the nonwoven fabric comprises a liquid additive.

6. The nonwoven fabric of claim 1 , wherein the polymer comprises a biopolymer.

7. The nonwoven fabric of claim 6 , wherein the biopolymer comprises a polylactic acid, a polyhydroxyalkanoate, or a combination thereof.

8. The nonwoven fabric of claim 1 , wherein the nonwoven fabric is provided in the form of a wipe and the wipe comprises a wet-wipe including a liquid cleaning composition.

9. The nonwoven fabric of claim 8 , wherein the liquid cleaning composition comprises an antimicrobial composition.

10. The nonwoven fabric of claim 1 , wherein the nonwoven fabric is a wipe that is disposed within a container.

11. The nonwoven fabric of claim 6 , wherein the biopolymer is a polylactic acid.

12. The nonwoven fabric of claim 1 , wherein the second nonwoven outer layer comprises a plurality of bicomponent fibers.

13. The nonwoven fabric of claim 12 , wherein the plurality of bicomponent fibers include a sheath component and a core component comprising a polylactic acid.

14. The nonwoven fabric of claim 1 , wherein the nonwoven fabric has an elongation at peak per ASTM D 5035 using the 50 mm wide strips in a machine direction of 35% or below.

15. The nonwoven fabric of claim 1 , wherein the first nonwoven outer layer, the second nonwoven outer layer, and the core layer are hydroentangled together.

Assignees

• Avintiv Specialty Materials Inc

Inventors

• Erlandsson Sven Krister
• Snider Jerry
• Dietz Iii Albert G
• Grondin Pierre
• Moody Iii Ralph A

Classifications

• A47K7/02 Primary

  Bathing sponges, brushes, gloves or similar cleaning or rubbing implements · CPC title

• B32B5/022

  Non-woven fabric · CPC title

• B32B5/04

  characterised by a layer being specifically extensible by reason of its structure or arrangement {, e.g. by reason of the chemical nature of the fibres or filaments} · 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

• B32B5/26

  another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} · CPC title