Fibrous structures including an active agent and having a graphic printed thereon

Patent metadata

Field	Value
Publication number	US-11795622-B2
Application number	US-202318099341-A
Country	US
Kind code	B2
Filing date	Jan 20, 2023
Priority date	Dec 9, 2013
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

The present disclosure relates to fibrous structures including active agents and having a graphic printed thereon. In some embodiments, a nonwoven web may include a fibrous structure comprising filaments. In turn, the filaments may include filament forming material, and an active agent releasable from the filaments when exposed to conditions of intended use. In addition, a graphic may be printed directly onto the fibrous structure.

First claim

What is claimed is:

1. A pouch comprising
a water-soluble fibrous structure comprising a plurality of inter-entangled filaments and void areas between each filament of the plurality of inter-entangled filaments; wherein at least one of the inter-entangled filaments comprises a filament forming material; wherein the water-soluble fibrous structure is formed as a pouch wall material that defines an internal volume of the pouch; and
one or more discrete, water-soluble, active agent-containing particles present within the internal volume of the pouch and releasable from the pouch when exposed to conditions of intended use;
wherein the pouch further comprises a graphic printed directly on at least a portion of the plurality of inter-entangled filaments and/or void areas of the water-soluble fibrous structure, and
wherein the graphic is formed from an ink at least a portion of which non-uniformly penetrates the inter-entangled filaments and/or void areas on a surface of the water-soluble fibrous structure to a depth of 100 microns or less.

2. The pouch of claim 1 wherein the surface of the water-soluble fibrous structure faces the internal volume of the pouch.

3. The pouch of claim 1 wherein the surface of the water-soluble fibrous structure faces away from the internal volume of the pouch.

4. The pouch of claim 1 wherein the graphic includes a primary color selected from the group consisting of: cyan, yellow, magenta, and black.

5. The pouch of claim 4 wherein the primary color of cyan has an optical density of greater than about 0.05.

6. The pouch of claim 4 wherein the primary color of yellow has an optical density of greater than about 0.05.

7. The pouch of claim 4 wherein the primary color of magenta has an optical density of greater than about 0.05.

8. The pouch of claim 4 wherein the primary color of black has an optical density of greater than about 0.05.

9. The pouch of claim 1 wherein the water-soluble fibrous structure exhibits one or more of the following properties:
a. a geometric mean tensile of at least about 200 g/M or greater;
b. a geometric mean peak elongation of at least about 10% or greater;
c. a geometric mean modulus of about 5000 g/cm or less;
d. an average disintegration time of about 60 seconds or less;
e. an average dissolution time of about 600 seconds or less;
f. an average disintegration time per gsm of sample of about 1.0 second/gsm or less;
g. an average dissolution time per gsm of sample of about 10 second/gsm or less;
h. a dry average ink adhesion rating of at least about 1.5 or greater; and
i. a wet average ink adhesion rating of at least about 1.5 or greater.

10. The pouch of claim 1 wherein the water-soluble fibrous structure has one or more of the following properties:
a. a dry average ink adhesion rating of at least about 1.5 or greater; and
b. a wet average ink adhesion rating of at least about 1.5 or greater.

11. The pouch of claim 1 wherein the graphic comprises L*a*b* color values, the graphic being defined by the difference in CIELab coordinate values disposed inside the boundary described by the following system of equations:
{ a*=− 13.0 to −10.0; b*= 7.6 to 15.5 }→b*= 2.645 a*+ 41.869

{ a*=− 10.0 to −2.1; b*= 15.5 to 27.0 }→b*= 1.456 a*+ 30.028

{ a*=− 2.1 to 4.8; b*= 27.0 to 24.9 }→b*=− 0.306 a*+ 26.363
{ a*= 4.8 to 20.9; b*= 24.9 to 15.2 }→>b*=− 0.601 a*+ 27.791
{ a*= 20.9 to 23.4; b*= 15.2 to −4.0 }→b*=− 7.901 a*+ 180.504

{ a*= 23.4 to 20.3; b*=− 4.0 to −10.3 }→b*= 2.049 a*− 51.823

{ a*= 20.3 to 6.6; b*=− 10.3 to −19.3 }→b*= 0.657 a*− 23.639

{ a*= 6.6 to −5.1; b*=− 19.3 to −18.0 }→b*=− 0.110 a*− 18.575

{ a*=− 5.1 to −9.2; b*=− 18.0 to −7.1 }→b*=− 2.648 a*− 31.419

{ a*=− 9.2 to −13.0; b*=− 7.1 to 7.6 }→b*=− 3.873 a*− 42.667; and

wherein L* is from 0 to 100.

12. The pouch of claim 1 wherein the graphic comprises one or more of the following: dyes and pigments.

13. The pouch of claim 1 wherein the graphic comprises a spot color.

14. The pouch of claim 1 wherein the pouch comprises a plurality of discrete, water-soluble, active agent-containing particles.

15. The pouch of claim 14 wherein the plurality of discrete, water-soluble, active agent-containing particles comprise one or more surfactants.

16. The pouch of claim 15 wherein the one or more surfactants are selected from the group consisting of: anionic surfactants, cationic surfactants and mixtures thereof.

17. The pouch of claim 15 wherein the one or more surfactants comprise a sulfate-free surfactant.

18. The pouch of claim 14 wherein the plurality of discrete, water-soluble, active agent-containing particles comprise one or more effervescent agents.

19. The pouch of claim 17 wherein the one or more effervescent agents are selected from the group consisting of: carboxylic acids, carbonates, and mixtures thereof.

20. The pouch of claim 1 wherein the filament forming material comprises a hydroxyl polymer.

21. A pouch comprising
a water-soluble fibrous structure comprising a plurality of inter-entangled filaments and void areas between each filament of the plurality of inter-entangled filaments; wherein at least one of the inter-entangled filaments comprises a filament forming material comprising polyvinyl alcohol; wherein the water-soluble fibrous structure is formed as a pouch wall material that defines an internal volume of the pouch; and
one or more discrete, water-soluble, active agent-containing particles present within the internal volume of the pouch and releasable from the pouch when exposed to conditions of intended use; wherein the plurality of the of discrete, water-soluble, active agent-containing particles comprise anionic surfactants, cationic surfactants and effervescent agents;
wherein the pouch further comprises a graphic printed directly on at least a portion of the plurality of inter-entangled filaments and/or void areas of the water-soluble fibrous structure, and
wherein the graphic is formed from an ink at least a portion of which non-uniformly penetrates the inter-entangled filaments and/or void areas on a surface of the water-soluble fibrous structure to a depth of 100 microns or less.

Assignees

• Procter & Gamble

Inventors

• Weisman Paul Thomas
• Yang Hui
• Warner Alrick Vincent
• Dreher Andreas Josef
• Sivik Mark Robert

Classifications

• C11D17/044 Primary

  Solid compositions · CPC title

• D21H21/28 Primary

  Colorants {; Pigments or opacifying agents} · CPC title

• D01F1/10

  Other agents for modifying properties · CPC title

• D04H1/42 Primary

  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

• D04H1/4266

  Natural fibres not provided for in group D04H1/425 · CPC title