Fibrous structures comprising a surface softening composition

• US 10,479,960 B2
• Filed: 07/07/2016
• Issued: 11/19/2019
• Est. Priority Date: 07/10/2015
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Mohammadi, Khosrow Parviz, Schubert, Beth Ann, Scheibel, Jeffrey John
• Primary Examiner(s): Worsham, Jessica
• Application Number:
  US15/203,838
• Publication Number:
  US 20170009402A1
• Time in Patent Office: 1,230 Days
• Field of Search: None
• 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 containing a plurality of wood pulp fibers and a surface having thereon a surface softening composition containing 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;
  • (ii) an oligomer index from greater than 0 to 1; and
  • (iii) an iodine value of from about 30 to about 200
    is provided.

Claims

1. A fibrous structure comprising a plurality of wood pulp fibers, wherein the fibrous structure comprises a surface comprising a non-transferable 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;

(ii) an oligomer index from greater than 0 to 1; and

(iii) an iodine value of from about 30 to about 200;

wherein the surface softening composition further comprises a quaternary ammonium compound;

wherein the surface softening composition comprises from about 5% to about 40% by weight of the quaternary ammonium compound;

wherein the fibrous structure comprises from about 0.1% to about 2% of a total basis weight of the surface softening composition; and

wherein the fibrous structure exhibits an average TS7 Softness Value of less than 9.

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, 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 50 to 100.

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

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

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

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

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

11. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Slip Stick Coefficient of Friction of less than 360.

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

13. The sanitary tissue product according to claim 12 wherein the sanitary tissue product is toilet paper.