# US 2017/0282525 A1 · Fibrous Structures with Improved Tewl Properties > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0282525 A1 - Document ID: US20170282525A1 - Status: Published application - Kind: A1 - Application number: 15/478,543 - Filed: 2017-04-04 - Published: 2017-10-05 - Earliest claimed: 2016-04-04 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: David William Cabell; Michael Gomer Stelljes; John Gerhard Michael; Janese Christine O'Brien Stickney; Joshua Thomas Fung; Paul Arlen Forshey; Paul Dennis Trokhan; Jeffrey Glen Sheehan - Web page: https://patentgrep.com/patent/US20170282525A1 ## CPC - B32B 29/02: next to a fibrous or filamentary layer - A47K 10/16: Paper towels; Toilet paper; Holders therefor - A61L 15/225: {Mixtures of macromolecular compounds} - A61L 15/42: Use of materials characterised by their function or physical properties (liquid bandages A61L26/00) - B32B 5/022: {Non-woven fabric} - B32B 7/05: the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14) - D01D 5/0985: {by means of a flowing gas (e.g. melt-blowing)} - D01D 10/02: Heat treatment (heating for finishing D02J13/00) - D01D 10/06: Washing or drying - D01F 6/76: from other polycondensation products - D04H 3/007: Addition polymers - D04H 3/14: with bonds between thermoplastic yarns or filaments produced by welding - D21H 13/02: Synthetic cellulose fibres - D21H 13/16: Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters - D21H 13/30: Non-cellulose polysaccharides - D21H 15/06: Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments - 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)} - D21H 27/004: {characterised by specific parameters (D21H27/008 takes precedence)} - D21H 27/005: {relating to physical or mechanical properties, e.g. tensile strength, stretch, softness} - D21H 27/38: at least one of the sheets having a fibrous composition differing from that of other sheets - B32B 2262/0223: Vinyl resin fibres - B32B 2262/067: Wood fibres - B32B 2555/00: Personal care - D10B 2509/00: Medical; Hygiene - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - D01D: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS - D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS - D04H: MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL (weaving D03; knitting D04B; braiding D04C; net-making D04G; sewing D05B; tufting D05C; finishing non-woven fabrics D06); FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING {; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION}(non-woven fabrics having an intermediate or external layer of a different kind, e.g. of woven fabric, B32B) - D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR - D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES ## Abstract Fibrous structures and more particularly to fibrous structures that exhibit improved TEWL properties, for example lower TEWL % Difference Values as measured according to the TEWL Test Method described herein, compared to known fibrous structures, sanitary tissue products comprising such fibrous structures and method for making such fibrous structures are provided. ## Claims ### Claim 1 A fibrous structure comprising a first web material comprising a plurality of fibers, wherein the fibrous structure exhibits a TEWL % Difference Value (Wipe 144 Day 5) of less than 42.0% as measured according to the TEWL Test Method. ### Claim 2 (depends on 1) The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Force Variability Value of less than 1.40 as measured according to the Glide on Skin Test Method. ### Claim 3 (depends on 1) The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Force to Drag Values of less than 100 as measured according to the Glide on Skin Test Method. ### Claim 4 (depends on 1) The fibrous structure according to claim 1 wherein the first web material comprises a plurality of fibrous elements. ### Claim 5 (depends on 4) The fibrous structure according to claim 4 wherein at least one of the fibrous elements comprises a fiber. ### Claim 6 (depends on 5) The fibrous structure according to claim 5 wherein the fiber comprises a pulp fiber. ### Claim 7 (depends on 6) The fibrous structure according to claim 6 wherein the pulp fiber comprises a wood pulp fiber. ### Claim 8 (depends on 1) The fibrous structure according to claim 1 wherein the first web material comprises a wet laid fibrous structure ply. ### Claim 9 (depends on 1) The fibrous structure according to claim 1 wherein the surface of the fibrous structure further comprises at least a portion of the first web material. ### Claim 10 (depends on 1) The fibrous structure according to claim 1 wherein the surface material is associated with the first web material. ### Claim 11 (depends on 10) The fibrous structure according to claim 10 wherein the surface material is associated with the first web material through one or more bond sites. ### Claim 12 (depends on 1) The fibrous structure according to claim 1 wherein the surface material comprises a second web material. ### Claim 13 (depends on 12) The fibrous structure according to claim 12 wherein the second web material comprises a plurality of fibrous elements. ### Claim 14 (depends on 13) The fibrous structure according to claim 13 wherein the fibrous elements comprises a non-naturally occurring fiber. ### Claim 15 (depends on 14) The fibrous structure according to claim 14 wherein the non-naturally occurring fiber comprises a polysaccharide. ### Claim 16 (depends on 15) The fibrous structure according to claim 15 wherein the polysaccharide is selected from the group consisting of: cellulose, cellulose derivatives, starch, starch derivatives, hemicelluloses, hemicelluloses derivatives, and mixtures thereof ### Claim 17 (depends on 13) The fibrous structure according to claim 13 wherein at least one of the fibrous elements comprises a filament. ### Claim 18 (depends on 17) The fibrous structure according to claim 17 wherein the filament comprises polyvinyl alcohol. ### Claim 19 (depends on 17) The fibrous structure according to claim 17 wherein the filament comprises a polysaccharide. ### Claim 20 (depends on 12) The fibrous structure according to claim 12 wherein the second web material comprises a crosslinked polymer.