IP Library Granted Patent US 12,042,364
Granted Patent B2
US 12,042,364 · App. 16/889,850 · Granted Jul 23, 2024

Dark-tinted nonwoven webs

Inventor: Nirosha Seth Wimalasena (Cincinnati, OH)
Assignee: The Procter & Gamble Company
A61F13/49A61F13/15203D04H1/42A61F2013/15243A61F2013/15406A61F2013/49092
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Quick Facts
Patent No.
US 12,042,364
App. No.
16/889,850
Granted
Jul 23, 2024
Kind
B2
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.

Claims (39)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2020
From: WIMALASENA, NIROSHA SETH
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 052806/0265 →
Continuity (2)
Provisional Application 62856454 · Jun 3, 2019
Related Publication 20200375813A1 · Dec 3, 2020
Cited By (1)
US 12,558,273