Fibrous Structures Comprising a Surface Softening Composition

• US 20170009402A1
• Filed: 07/07/2016
• Published: 01/12/2017
• Est. Priority Date: 07/10/2015
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Mohammadi, Khosrow Parviz, Schubert, Beth Ann, Scheibel, Jeffrey John
• Granted Patent: US 10,479,960 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C11C 3/10 Ester interchange
• CPC Class Codes: C11D 17/047 Arrangements specially adapted for dry cleaning or laundry dryer related applications
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/001 Softening compositions
• CPC Class Codes: C11D 3/2093 Esters; Carbonates
• CPC Class Codes: C11D 3/226 esterified
• CPC Class Codes: C11D 3/3749 Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
• CPC Class Codes: D21H 17/21 of natural origin; Derivatives thereof
• CPC Class Codes: D21H 17/36 Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
• CPC Class Codes: D21H 19/14 applied in a form other than the aqueous solution defined in group D21H19/12
• CPC Class Codes: D21H 21/22 Agents rendering paper porous, absorbent or bulky
• CPC Class Codes: D21H 27/002 Tissue paper; Absorbent paper D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00
• CPC Class Codes: D21H 27/005 relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
• CPC Class Codes: D21H 27/30 Multi-ply for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00

Abstract

Fibrous structures having thereon a surface softening composition containing a metathesized unsaturated polyol ester, sanitary tissue products made from such fibrous structures and methods for making same are provided.

Claims

1. A fibrous structure comprising a surface comprising a surface softening composition comprising a metathesized unsaturated polyol ester having one or more of the following properties:

(i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons, from about 5,500 Daltons to about 50,000 Daltons, from about 5,500 Daltons to about 40,000 Daltons, or from about 6,000 Daltons to about 30,000 Daltons;

(ii) an oligomer index from greater than 0 to 1, from 0.001 to 1, 0.01 to 1, or from 0.05 to 1; and

(iii) an iodine value of from about 30 to about 200, from about 30 to about 150, from about 30 to about 120, or from about 50 to about 110.

2. The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of:

a metathesized natural oil composition comprising olefins, esters, and mixtures thereof a metathesized natural oil composition having a number average molecular weight in the range of from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range of from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range of from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of from about 1 to about 20, wherein the metathesized natural oil composition is metathesized at least once; and

mixtures thereof.

3. The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of a metathesized vegetable oil, a metathesized animal fat, a metathesized algae oil and mixtures thereof.

4. The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester is selected from the group consisting of metathesized canola oil, metathesized rapeseed oil, metathesized coconut oil, metathesized corn oil, metathesized cottonseed oil, metathesized olive oil, metathesized palm oil, metathesized peanut oil, metathesized safflower oil, metathesized sesame oil, metathesized soybean oil, metathesized sunflower oil, metathesized linseed oil, metathesized palm kernel oil, metathesized tang oil, metathesized jatropha oil, metathesized mustard oil, metathesized castor oil, metathesized camelina oil, metathesized pennycress oil, metathesized derivatives of these oils, and mixtures thereof.

5. The fibrous structure according to claim 1 wherein the metathesized unsaturated polyol ester has an iodine value (IV) that ranges from 5 to 100.

6. The fibrous structure according to claim 1 wherein the surface softening composition further comprises a surface softening agent selected from the group consisting of:

silicones, quaternary ammonium compounds, and mixtures thereof.

7. The fibrous structure according to claim 1 wherein the fibrous structure further comprises a lotion composition.

8. The fibrous structure according to claim 1 wherein the fibrous structure is a through-air-dried fibrous structure.

9. The fibrous structure according to claim 1 wherein the fibrous structure is a conventionally dried fibrous structure.

10. The fibrous structure according to claim 1 wherein the fibrous structure is belt creped.

11. The fibrous structure according to claim 1 wherein the fibrous structure is fabric creped.

12. The fibrous structure according to claim 1 wherein the fibrous structure comprises fibers.

13. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Slip Stick Coefficient of Friction of less than 360 as measured according to the Slip Stick Coefficient of Friction Test Method.

14. The fibrous structure according to claim 1 wherein the fibrous structure exhibits an average TS7 Softness Value of less than 9 as measured according to the Softness Test Method.

15. A single- or multi-ply sanitary tissue product comprising a fibrous structure according to claim 1.

16. The sanitary tissue product according to claim 15 wherein the sanitary tissue product is toilet paper.

17. A process for treating a surface of a fibrous structure, the process comprising the step of applying a surface softening composition comprising a metathesized unsaturated polyol ester having one or more of the following properties:

(i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons, from about 5,500 Daltons to about 50,000 Daltons, from about 5,500 Daltons to about 40,000 Daltons, or from about 6,000 Daltons to about 30,000 Daltons;

(ii) an oligomer index from greater than 0 to 1, from 0.001 to 1, 0.01 to 1, or from 0.05 to 1; and

(iii) an iodine value of from about 30 to about 200, from about 30 to about 150, from about 30 to about 120, or from about 50 to about 110;

to the surface of the fibrous structure.

18. The process according to claim 17 wherein at least 10#/ton of the surface softening composition is applied to the surface of the fibrous structure.

19. The process according to claim 17 wherein the process further comprises the step of applying a lotion composition to the surface of the fibrous structure.

20. The process according to claim 17 wherein the process further comprises the step of applying an additional surface softening agent selected from the group consisting of:

quaternary ammonium compounds, silicones, and mixtures thereof, to the surface of the fibrous structure.

21. A fibrous structure comprising a surface comprising a surface softening composition comprising a metathesized unsaturated polyol ester having a weight average molecular weight of from about 2,000 Daltons to about 50,000 Daltons, from about 2,500 Daltons to about 50,000 Daltons, from about 3,000 Daltons to about 40,000 Daltons, from about 3,000 Daltons to about 30,000 Daltons;

and one or more of the following properties;

(i) a free hydrocarbon content, based on total weight of metathesized unsaturated polyol ester, of from about 0% to about 5%, from about 0.1% to about 5%, from about 0.1% to about 4%, or from about 0.1 to about 3%;

(ii) an oligomer index from greater than 0 to 1, from 0.001 to 1, 0.01 to 1, or from 0.05 to 1; and

(iii) an iodine value of from about 8 to about 200, from about 10 to about 200, from about 20 to about 150, from about 30 to about 120.

22. The fibrous structure according to claim 21 wherein the metathesized unsaturated polyol ester is selected from the group consisting of:

a metathesized natural oil composition comprising olefins, esters, and mixtures thereof a metathesized natural oil composition having a number average molecular weight in the range of from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range of from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range of from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of from about 1 to about 20, wherein the metathesized natural oil composition is metathesized at least once; and

mixtures thereof.

23. The fibrous structure according to claim 21 wherein the metathesized unsaturated polyol ester is selected from the group consisting of a metathesized vegetable oil, a metathesized animal fat, a metathesized algae oil and mixtures thereof.

24. The fibrous structure according to claim 21 wherein the metathesized unsaturated polyol ester is selected from the group consisting of metathesized canola oil, metathesized rapeseed oil, metathesized coconut oil, metathesized corn oil, metathesized cottonseed oil, metathesized olive oil, metathesized palm oil, metathesized peanut oil, metathesized safflower oil, metathesized sesame oil, metathesized soybean oil, metathesized sunflower oil, metathesized linseed oil, metathesized palm kernel oil, metathesized tang oil, metathesized jatropha oil, metathesized mustard oil, metathesized castor oil, metathesized camelina oil, metathesized pennycress oil, metathesized derivatives of these oils, and mixtures thereof.

25. The fibrous structure according to claim 21 wherein the metathesized unsaturated polyol ester has an iodine value (IV) that ranges from 5 to 100.

26. The fibrous structure according to claim 21 wherein the surface softening composition further comprises a surface softening agent selected from the group consisting of:

silicones, quaternary ammonium compounds, and mixtures thereof.

27. The fibrous structure according to claim 21 wherein the fibrous structure further comprises a lotion composition.

28. The fibrous structure according to claim 21 wherein the fibrous structure is a through-air-dried fibrous structure.

29. The fibrous structure according to claim 21 wherein the fibrous structure is a conventionally dried fibrous structure.

30. The fibrous structure according to claim 21 wherein the fibrous structure is belt creped.

31. The fibrous structure according to claim 21 wherein the fibrous structure is fabric creped.

32. The fibrous structure according to claim 21 wherein the fibrous structure comprises fibers.

33. The fibrous structure according to claim 21 wherein the fibrous structure exhibits a Slip Stick Coefficient of Friction of less than 360 as measured according to the Slip Stick Coefficient of Friction Test Method.

34. The fibrous structure according to claim 21 wherein the fibrous structure exhibits an average TS7 Softness Value of less than 9 as measured according to the Softness Test Method.

35. A single- or multi-ply sanitary tissue product comprising a fibrous structure according to claim 21.

36. The sanitary tissue product according to claim 35 wherein the sanitary tissue product is toilet paper.

37. A process for treating a surface of a fibrous structure, the process comprising the step of applying a surface softening composition comprising a metathesized unsaturated polyol ester having a weight average molecular weight of from about 2,000 Daltons to about 50,000 Daltons, from about 2,500 Daltons to about 50,000 Daltons, from about 3,000 Daltons to about 40,000 Daltons, from about 3,000 Daltons to about 30,000 Daltons;

and one or more of the following properties;

(i) a free hydrocarbon content, based on total weight of metathesized unsaturated polyol ester, of from about 0% to about 5%, from about 0.1% to about 5%, from about 0.1% to about 4%, or from about 0.1 to about 3%;

(ii) an oligomer index from greater than 0 to 1, from 0.001 to 1, 0.01 to 1, or from 0.05 to 1; and

(iii) an iodine value of from about 8 to about 200, from about 10 to about 200, from about 20 to about 150, from about 30 to about 120;

to the surface of the fibrous structure.

38. The process according to claim 37 wherein at least 10#/ton of the surface softening composition is applied to the surface of the fibrous structure.

39. The process according to claim 37 wherein the process further comprises the step of applying a lotion composition to the surface of the fibrous structure.

40. The process according to claim 37 wherein the process further comprises the step of applying an additional surface softening agent selected from the group consisting of:

quaternary ammonium compounds, silicones, and mixtures thereof, to the surface of the fibrous structure.