Dark-tinted nonwoven webs

Patent metadata

Field	Value
Publication number	US-12042364-B2
Application number	US-202016889850-A
Country	US
Kind code	B2
Filing date	Jun 2, 2020
Priority date	Jun 3, 2019
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

Absorbent articles containing dark-tinted nonwoven webs are provided. The dark-tinted nonwoven web may include a first plurality of filaments having a diameter between a between about 8 μm and about 50 μm, wherein the first plurality of filaments includes a pigment. The dark-tinted nonwoven web may include a second plurality of filaments having a diameter between about 0.3 μm and about 5 μm. The dark-tinted nonwoven web may have a CIE L* value of between about 0 and about 26.

First claim

What is claimed is:

1. An absorbent article comprising:
a topsheet;
a backsheet;
an absorbent core disposed between the topsheet and the backsheet; and
a pair of barrier cuffs extending longitudinally along sides of the absorbent article, each of the pair of barrier cuffs comprising a nonwoven web comprising:
a first plurality of filaments having a diameter between about 8 μm and about 50 μm according to the Filament Size Test, wherein the first plurality of filaments comprise a first pigment; and
a second plurality of filaments having a diameter between about 0.3 μm and about 5 μm according to the Filament Size Test, wherein the second plurality of filaments comprise a second pigment;
wherein the nonwoven web comprises a first side and an opposing second side, wherein the first plurality of filaments forms a portion of the first side and wherein the first plurality of filaments forms a portion of the second side; and
wherein the nonwoven web has an L* value of between about 0 and about 26 as measured from either the first side or the second side, according to the CIE L*a*b* Test;
wherein the first plurality of filaments has a basis weight of between about 12 to about 25 gsm;
wherein the second plurality of filaments has a basis weight of between about 0.5 to about 3 gsm;
wherein at least one of the first plurality of filaments and the second plurality of filaments have a ratio of colorant particle diameter to filament diameter of less than 0.07.

2. The absorbent article of claim 1 , wherein a First Filament Ratio of the number of filaments of the first plurality of filaments as measured from the first side to the number of filaments of the first plurality of filaments as measured from the second side is between about 1.25 to 1 and about 3.5 to 1, according to the Filament Ratio Test.

3. The absorbent article of claim 1 , wherein the first and/or second pigments comprise black pigment.

4. The absorbent article of claim 3 , wherein the black pigment comprises a high purity pigment.

5. The absorbent article of claim 3 , wherein the black pigment is carbon black.

6. The absorbent article of claim 2 , wherein the nonwoven web comprises an L* value of between about 0 and about 26, as measured from the first side according to the CIE L*a*b* Test.

7. The absorbent article of claim 1 , wherein the nonwoven web has a basis weight of between about 10 gsm to about 50 gsm.

8. The absorbent article of claim 1 , wherein the nonwoven web has a Hydrohead value of between about 15 mbar and about 50 mbar, according to the Hydrostatic Head Test.

9. An absorbent article comprising:
a topsheet;
a backsheet;
an absorbent core disposed between the topsheet and the backsheet; and
a pair of barrier cuffs extending longitudinally along sides of the absorbent article;
wherein a component of the absorbent article comprises a nonwoven web comprising:
a first plurality of filaments having a diameter between about 8 μm and about 50 μm according to the Filament Size Test, wherein the first plurality of filaments comprise a first pigment;
a second plurality of filaments having a diameter between about 0.3 μm and about 5 μm according to the Filament Size Test;
wherein the nonwoven web comprises a first side and an opposing second side, wherein the first plurality of filaments forms a portion of the first side and wherein the first plurality of filaments forms a portion of the second side; and
wherein the nonwoven web has an L* value of between about 0 and about 26 as measured from either the first side or the second side, according to the CIE L*a*b* Test;
wherein the first plurality of filaments has a basis weight of between about 12 to about 25 gsm;
wherein the second plurality of filaments has a basis weight of between about 0.5 to about 3 gsm;
wherein at least one of the first plurality of filaments and the second plurality of filaments have a ratio of colorant particle diameter to filament diameter of less than 0.07.

10. The absorbent article of claim 9 , wherein a First Filament Ratio of the number of filaments of the first plurality of filaments as measured from the first side to the number of filaments of the first plurality of filaments as measured from the second side is between about 1.5 to 1 and about 4 to 1, according to the Filament Ratio Test.

11. The absorbent article of claim 9 , wherein the second plurality of filaments comprise a second pigment, and wherein a First Filament Ratio of the number of filaments of the first plurality of filaments as measured from the first side to the number of filaments of the first plurality of filaments as measured from the second side is between about 1.25 to 1 and about 3.5 to 1, according to the Filament Ratio Test.

12. The absorbent article of claim 11 , wherein the first and/or second pigment is a black pigment.

13. The absorbent article of claim 12 , wherein the black pigment comprises a high purity pigment.

14. The absorbent article of claim 12 , wherein the black pigment is carbon black.

15. The absorbent article of claim 10 , wherein the nonwoven web has an L* value of between about 0 and about 26, as measured from the first side, according to the CIE L*a*b* Test.

16. The absorbent article of claim 9 , wherein the nonwoven web has Hydrohead Value of between about 15 mbar and about 50 mbar, according to the Hydrostatic Head Test.

Assignees

• Procter & Gamble

Inventors

• Wimalasena Nirosha Seth

Classifications

• D04H1/42

  characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece · CPC title

• A61F2013/49092

  comprising leg cuffs · CPC title

• A61F2013/15406

  Basis weight · CPC title

• A61F2013/15243

  printed or coloured, e.g. to match skin · CPC title

• A61F13/15203 Primary

  Properties of the article, e.g. stiffness or absorbency (chemical aspects A61L15/00) · CPC title