Soft nonwoven fabric and method of manufacturing thereof

Patent metadata

Field	Value
Publication number	US-10828209-B2
Application number	US-201615375375-A
Country	US
Kind code	B2
Filing date	Dec 12, 2016
Priority date	Dec 16, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

Fabrics having a desirable softness and exhibiting a low lint level are provided. The fabrics include an embossed bonding pattern, in which the embossed bonding pattern includes a plurality of icons (e.g., geometric shapes, caricatures, etc.). The plurality of icons may be defined by a plurality of perimeter bonding points. Additionally, from 1 to about 10 internal bonding points may be located within at least one of the plurality of icons.

First claim

That which is claimed:

1. A fabric, comprising:
a nonwoven web comprising an embossed bonding pattern,
the embossed bonding pattern comprising (i) a plurality of icons, each of the plurality of icons being defined by a plurality of perimeter bonding points and (ii) a plurality of internal bonding points located within at least one of the plurality of icons; the plurality of internal bonding points consisting of 2, 3, 4, or 5 individual internal bonding points; the plurality of icons includes a first discrete icon comprising a first plurality of perimeter bonding points and a second discrete icon comprising a second plurality of perimeter bonding points;
wherein each of the first plurality of perimeter bonding points is separate and distinct from each of the second plurality of perimeter bonding points
wherein the nonwoven web has a total bond area from 3% to 18%.

2. The fabric according to claim 1 , wherein the plurality of icons each comprise an icon area from 1 mm 2 to 50 mm 2 .

3. The fabric according to claim 1 , wherein the first discrete icon comprises a first icon area and the second discrete icon comprises a second icon area; wherein the first icon area is larger than the second icon area.

4. The fabric according to claim 1 , wherein each of the plurality of perimeter bonding points comprises an individual perimeter bonding point area comprising from 0.01 to 0.25 mm 2 and wherein each of the individual internal bonding points comprise an individual internal bonding point area comprising from 0.01 to 0.25 mm 2 .

5. The fabric according to claim 1 , wherein each of the plurality of perimeter bonding points comprise an individual perimeter bonding point area and each of the individual internal bonding points comprise an individual internal bonding point area; wherein the individual perimeter bonding point area is different than the individual internal bonding point area.

6. The fabric according to claim 1 , wherein each of the icons has 2 or 3 individual internal bonding points.

7. The fabric according to claim 1 , wherein the nonwoven web comprises a total bond area comprising from 10% to 18% of a total area of the nonwoven web.

8. The fabric according to claim 1 , wherein the individual internal bonding points are randomly located with the plurality of icons.

9. The fabric according to claim 1 , wherein internal bonding points define an internal pattern.

10. The fabric according to claim 9 , wherein the internal pattern is centered within the plurality of icons.

11. The fabric according to claim 9 , wherein the internal pattern is not centered within the plurality of icons.

12. The fabric according to claim 1 , wherein the individual internal bonding points are located no closer than 0.25 mm to a nearest perimeter bonding point.

13. The fabric according to claim 1 , wherein the nonwoven web comprises a spunbond layer.

14. The fabric according to claim 1 , wherein the internal bonding points are located no closer than 5 mm to a nearest perimeter bonding point.

15. The fabric according to claim 1 , wherein the embossed bonding pattern has from 2 to 5 first internal bonding points circumscribed by the first plurality of perimeter bonding points and from 2 to 5 second internal bonding points circumscribed by the second plurality of perimeter bonding points.

16. A fabric, comprising an embossed pattern including (i) a first icon being defined by a first plurality of perimeter bonding points and defining a first icon shape; (ii) a second icon being defined by a second plurality of perimeter bonding points and defining a second icon shape; wherein the first icon shape is different than the second icon shape; (iii) one or more first-internal bonding points consisting of 1, 2, 3, 4, or 5 individual first internal bonding points located within the first plurality of perimeter bonding points; wherein the 1, 2, 3, 4, or 5 individual first internal bonding points are not centrally located within first plurality of perimeter bonding points; and (iv) one or more second-internal bonding points consisting of 1, 2, 3, 4, or 5 individual second internal bonding points located within the second plurality of perimeter bonding points; wherein the 1, 2, 3, 4, or 5 individual second internal bonding points are either centrally located within first plurality of perimeter bonding points or not centrally located within first plurality of perimeter bonding points; wherein the nonwoven web has a total bond area from 3% to 18%.

17. The fabric of claim 16 , wherein the second icon has only one individual second internal bonding point located therein.

18. The fabric according to claim 1 , wherein the individual internal bonding points are located within 0.2 mm to 1 mm from each other.

Assignees

• Avintiv Specialty Materials Inc

Inventors

• Song Yiyin
• Huo Yisong
• Chen Kang Zhen
• Li Chusheng

Classifications

• D04H5/06 Primary

  strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns · CPC title

• D04H1/46

  by needling or like operations to cause entanglement of fibres (D04H1/45 takes precedence; needling machines D04H18/00) · CPC title

• A61F13/51104 Primary

  the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections · CPC title

• A61F13/511

  Topsheet, i.e. the permeable cover or layer facing the skin · CPC title

• D04H1/54

  by welding together the fibres, e.g. by partially melting or dissolving (in combination with needling D04H1/485) · CPC title