Fibrous structure and method for making same

• US 9,175,250 B2
• Filed: 09/12/2011
• Issued: 11/03/2015
• Est. Priority Date: 07/02/2010
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Sivik, Mark Robert, Gordon, Gregory Charles, Denome, Frank William, Hamad-Ebrahimpour, Alyssandrea Hope, Hodson, Stephen Joseph, Croll, Brian Patrick, Michael, John Gerhard, Dreher, Andreas Josef, Trokhan, Paul Dennis
• Primary Examiner(s): Park, H. Sarah
• Application Number:
  US13/229,845
• Publication Number:
  US 20120052037A1
• Time in Patent Office: 1,513 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/596 Mixtures of surface active compounds
• CPC Class Codes: A61K 8/0216 Solid or semisolid forms
• CPC Class Codes: A61K 8/027 Fibers; Fibrils
• CPC Class Codes: A61K 8/8129 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers or esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers, e.g. polyvinylmethylether
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners
• CPC Class Codes: B32B 2250/20 All layers being fibrous or filamentary
• CPC Class Codes: B32B 2255/02 on fibrous or filamentary layer
• CPC Class Codes: B32B 2262/0223 Vinyl resin fibres
• CPC Class Codes: B32B 2262/0246 Acrylic resin fibres
• CPC Class Codes: B32B 2262/0253 Polyolefin fibres
• CPC Class Codes: B32B 2262/0284 Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
• CPC Class Codes: B32B 2262/04 Cellulosic plastic fibres, e.g. rayon
• CPC Class Codes: B32B 2262/12 Conjugate fibres, e.g. core/sheath or side-by-side
• CPC Class Codes: B32B 2307/21 Anti-static
• CPC Class Codes: B32B 2307/4026 within the layer by addition of a colorant, e.g. pigments, dyes
• CPC Class Codes: B32B 2307/54 Yield strength; Tensile strength
• CPC Class Codes: B32B 2307/554 : Wear resistance
• CPC Class Codes: B32B 2307/7145 : Rot proof, resistant to bacteria, mildew, mould, fungi
• CPC Class Codes: B32B 2307/7163 : Biodegradable
• CPC Class Codes: B32B 2307/718 : Weight, e.g. weight per square meter
• CPC Class Codes: B32B 2307/728 : Hydrophilic
• CPC Class Codes: B32B 2307/73 : Hydrophobic
• CPC Class Codes: B32B 2307/732 : Dimensional properties
• CPC Class Codes: B32B 2307/746 : Slipping, anti-blocking, low friction
• CPC Class Codes: B32B 2307/758 : Odour absorbent
• CPC Class Codes: B32B 2307/764 : Insect repellent
• CPC Class Codes: B32B 2410/00 : Agriculture-related articles
• CPC Class Codes: B32B 2419/00 : Buildings or parts thereof
• CPC Class Codes: B32B 2432/00 : Cleaning articles, e.g. mops or wipes
• CPC Class Codes: B32B 2437/00 : Clothing
• CPC Class Codes: B32B 2439/06 : Bags, sacks, sachets
• CPC Class Codes: B32B 2457/10 : Batteries
• CPC Class Codes: B32B 2535/00 : Medical equipment, e.g. bandage, prostheses or catheter
• CPC Class Codes: B32B 2553/00 : Packaging equipment or accessories not otherwise provided for
• CPC Class Codes: B32B 2555/02 : Diapers or napkins
• CPC Class Codes: B32B 3/266 : characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 5/022 : Non-woven fabric
• CPC Class Codes: B32B 5/14 : characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
• CPC Class Codes: B32B 5/26 : another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: C05F 11/02 : from peat, brown coal, and similar vegetable deposits
• CPC Class Codes: C11D 1/22 : derived from aromatic compounds
• CPC Class Codes: C11D 1/29 : Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/75 : Amino oxides
• CPC Class Codes: C11D 17/0039 : Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/041 : Compositions releasably affixed on a substrate or incorporated into a dispensing means
• CPC Class Codes: C11D 17/042 : Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
• CPC Class Codes: C11D 17/049 : Cleaning or scouring pads; Wipes
• CPC Class Codes: C11D 17/06 : Powder; Flakes; Free-flowing mixtures; Sheets
• CPC Class Codes: D01F 1/10 : Other agents for modifying properties
• CPC Class Codes: H04L 65/611 : for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/65 : Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/75 : Media network packet handling
• CPC Class Codes: H04L 65/80 : Responding to QoS
• CPC Class Codes: H04N 21/2187 : Live feed
• CPC Class Codes: H04N 21/2343 : involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/4316 : for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/47217 : for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks specific graphical features in visual interfaces H04N21/4312
• CPC Class Codes: H04N 21/4788 : communicating with other users, e.g. chatting arrangements for providing for computer conferences, e.g. chat rooms, to substation in data switching networks H04L12/1813; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/6125 : involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/8456 : by decomposing the content in the time domain, e.g. in time segments

Abstract

A web material containing one or more active agents and methods for making same are provided.

Claims

1. A web material comprising a plurality of inter-entangled filaments associated with one another such that the web material is formed, wherein at least one of the filaments contains one or more active agents present in the filament at a total level of greater than 20% by weight on a dry filament basis, wherein at least one of the active agents comprises a surfactant, and one or more polar solvent-soluble filament-forming materials, and wherein the filament exhibits a diameter of greater than 1 μ

m and less than 100 μ

m as measured according to the Diameter Test Method, and wherein the web material exhibits an average disintegration time of less than 120 s/g as measured according to the Dissolution Test Method.

2. The web material according to claim 1 wherein one or more active agents are releasable from the filament when exposed to conditions of intended use.

3. The web material according to claim 1 wherein at least one of the one or more active agents is selected from the group consisting of:

skin benefit agents, medicinal agents, lotions, fabric care agents, dishwashing agents, carpet care agents, surface care agents, hair care agents, air care agents, and mixtures thereof.

4. The web material according to claim 1 wherein the filament comprises two or more different active agents.

5. The web material according to claim 1 wherein the web material further comprises a dissolution aid.

6. The web material according to claim 1 wherein the web material exhibits a water content of from 0% to about 20% by weight as measured according to the Water Content Test Method.

7. The web material according to claim 1 wherein the web material exhibits an average dissolution time less than 950 s/g as measured according to the Dissolution Test Method.

8. A web material comprising a plurality of inter-entangled filaments associated with one another such that the web material is formed, wherein at least one of the filaments contains one or more active agents present in the filament at a total level of greater than 20% by weight on a dry filament basis, wherein at least one of the active agents comprises a surfactant, and one or more filament-forming materials, and wherein the filament exhibits a diameter of greater than 1 μ

m and less than 100 μ

m as measured according to the Diameter Test Method, wherein the web material exhibits a MD Peak Elongation of greater than 10% as measured according to the Elongation Test Method, and wherein the web material exhibits an average disintegration time of less than 120 s/g as measured according to the Dissolution Test Method.

9. The web material according to claim 8 wherein one or more active agents are releasable from the filament when exposed to conditions of intended use.

10. The web material according to claim 8 wherein at least one of the one or more active agents is selected from the group consisting of:

skin benefit agents, medicinal agents, lotions, fabric care agents, dishwashing agents, carpet care agents, surface care agents, hair care agents, air care agents, and mixtures thereof.

11. The web material according to claim 8 wherein the filament comprises two or more different active agents.

12. The web material according to claim 8 wherein the web material further comprises a dissolution aid.

13. The web material according to claim 8 wherein the web material exhibits a water content of from 0% to about 20% by weight as measured according to the Water Content Test Method.

14. The web material according to claim 8 wherein the web material exhibits an average dissolution time less than 950 s/g as measured according to the Dissolution Test Method.

15. A web material comprising a plurality of inter-entangled filaments associated with one another such that the web material is formed, wherein at least one of the filaments contains one or more active agents present in the filament at a total level of greater than 20% by weight on a dry filament basis, wherein at least one of the active agents comprises a surfactant, and one or more filament-forming materials, and wherein the filament exhibits a diameter of greater than 1 μ

m and less than 100 μ

m as measured according to the Diameter Test Method, wherein the web material exhibits a GM Modulus of less than 15,000 g/cm² as measured according to the Modulus Test Method, and wherein the web material exhibits an average disintegration time of less than 120 s/g as measured according to the Dissolution Test Method.

16. The web material according to claim 15 wherein one or more active agents are releasable from the filament when exposed to conditions of intended use.

17. The web material according to claim 15 wherein at least one of the one or more active agents is selected from the group consisting of:

skin benefit agents, medicinal agents, lotions, fabric care agents, dishwashing agents, carpet care agents, surface care agents, hair care agents, air care agents, and mixtures thereof.

18. The web material according to claim 15 wherein the filament comprises two or more different active agents.

19. The web material according to claim 15 wherein the web material further comprises a dissolution aid.

20. The web material according to claim 15 wherein the web material exhibits a water content of from 0% to about 20% by weight as measured according to the Water Content Test Method.

21. The web material according to claim 15 wherein the web material exhibits an average dissolution time less than 950 s/g as measured according to the Dissolution Test Method.