# US 9,517,288 B2 · Process for manufacturing absorbent sanitary paper products > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,288 B2 - Document ID: US9517288B2 - Status: Granted - Kind: B2 - Application number: 14/994,771 - Filed: 2016-01-13 - Published: 2016-05-05 - Granted: 2016-12-13 - Earliest claimed: 2014-01-30 - Assignees: The Procter & Gamble Company - Applicants: The Procter & Gamble Company - Inventors: Thomas Timothy Byrne; Kevin Benson McNeil; Kathryn Christian Kien - Web page: https://patentgrep.com/patent/US9517288B2 ## CPC - A61L 15/28: Polysaccharides or their derivatives {(A61L15/225 takes precedence)} - A61L 15/42: Use of materials characterised by their function or physical properties (liquid bandages A61L26/00) - D04H 1/70: characterised by the method of forming fleeces or layers, e.g. reorientation of fibres - D04H 1/74: the fibres being orientated, e.g. in parallel {(anisotropic fleeces)} - D04H 11/00: Non-woven pile fabrics (layered products forming non-woven pile fabrics B32B) - D21H 11/04: Kraft or sulfate pulp - D21H 17/09: Sulfur-containing compounds - D21H 17/27: Esters thereof - D21H 21/20: Wet strength agents - D21H 27/007: {relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties} - D21H 27/02: Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) - D21H 27/30: Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00) - D21H 27/32: with materials applied between the sheets (attaching together paper or cardboard sheets B31F5/00; adhesives C09J) - 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) - 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 ## Abstract A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions is disclosed. The method comprises the steps of: a. providing a first network of fibers having a first and a second side, each fiber of the first network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; b. applying a first bonding layer in a first pattern to one of the first and second sides of the first network of fibers; and, c. applying a first second network of fibers to the first bonding layer, the first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers. The first and second pluralities of fibers are different. ## Claims ### Claim 1 A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions, said method comprising the steps of: providing a first network of fibers having a first and a second side, each fiber of said first network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; applying a first bonding layer in a first pattern to one of said first and second sides of said first network of fibers; and, applying a first second network of fibers to said first bonding layer, each fiber of said first second network of fibers having a longitudinal axis generally disposed within the plane comprising the Z-direction, said first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers, said first and second pluralities of fibers being different. ### Claim 2 (depends on 1) The method of claim 1 further comprising the steps of applying a second bonding layer to one of said first and second sides of said first network of fibers and applying a second second network of fibers to said second bonding layer. ### Claim 3 (depends on 2) The method of claim 2 further comprising the step of placing said first network of fibers into proximate contacting engagement with a third network of fibers, each fiber of said third network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions. ### Claim 4 (depends on 3) The method of claim 3 wherein said first bonding layer is applied to said first side of said first network of fibers and said second bonding layer is applied to said first side of said first network of fibers, and said third network of fibers is in proximate contacting engagement with said second side of said first network of fibers, said method further comprising the steps of: prior to providing said third network of fibers in proximate contacting engagement with said second side of said first network of fibers, applying a third bonding layer to said second side of said first network of fibers; and applying a third second network of fibers to said third bonding layer. ### Claim 5 (depends on 4) The method of claim 4 further comprising the steps of: applying a fourth bonding layer to said side of said third network of fibers in proximate contacting engagement with said second side of said first network of fibers; and applying a fourth second network of fibers to said fourth bonding layer. ### Claim 6 (depends on 5) The method of claim 5 wherein said first second network of fibers comprises a first and second portion of fibers, said first and second portion of fibers being different, wherein said method further comprises the steps of: applying said first portion of fibers to said first bonding layer; and, applying said second portion of fibers to said first bonding layer. ### Claim 7 (depends on 1) The method of claim 1 further comprising the step of: further processing said absorbent sanitary paper product with a process selected from the group consisting of embossing, printing, perforating, slitting, folding, winding, combinations thereof. ### Claim 8 A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions, said method comprising the steps of: providing a first network of fibers, each fiber of said first network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; applying a first bonding layer to said first side of said first network of fibers; applying a first second network of fibers to said first bonding layer, each fiber of said first second network of fibers having a longitudinal axis generally disposed within the plane comprising the Z-direction and comprising a combination of a first plurality of fibers and a second plurality of fibers, said first and second pluralities of fibers being different; and, applying a second bonding layer to said first side of first second network of fibers and applying a second second network of fibers to said second bonding layer each fiber of said second second network of fibers having a longitudinal axis generally disposed within the plane comprising the Z-direction. ### Claim 9 (depends on 8) The method of claim 8 further comprising the step of placing said second side of said first network of fibers into contacting engagement with a third network of fibers, each fiber of said third network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions. ### Claim 10 (depends on 9) The method of claim 9 further comprising the steps of: prior to providing said third network of fibers in proximate contacting engagement with said second side of said first network of fibers, applying a third bonding layer to said second side of said first network of fibers; and applying a third second network of fibers to said third bonding layer. ### Claim 11 (depends on 10) The method of claim 10 further comprising the steps of: prior to providing said third network of fibers in proximate contacting engagement with said second side of said first network of fibers, applying a fourth bonding layer to said side of said third network of fibers in proximate contacting engagement with said second side of said first network of fibers; and applying a fourth second network of fibers to said fourth bonding layer. ### Claim 12 (depends on 8) The method of claim 8 wherein said first second network of fibers comprises a first and second portion of fibers, said first and second portion of fibers being different, wherein said method further comprises the steps of: applying said first portion of fibers to said first bonding layer; and, applying said second portion of fibers to said first bonding layer. ### Claim 13 (depends on 8) The method of claim 8 further comprising the step of: further processing said absorbent sanitary paper product with a process selected from the group consisting of embossing, printing, perforating, slitting, folding, winding, combinations thereof. ### Claim 14 A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions, said method comprising the steps of: providing a first network of fibers, each fiber of said first network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; applying a first bonding layer to said first side of said first network of fibers; applying a first second network of fibers to said first bonding layer, said first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers, said first and second pluralities of fibers being different each fiber of said first and second pluralities of fibers having a longitudinal axis generally disposed within the plane comprising the Z-direction; and, applying a second bonding layer to said second side of first second network of fibers and applying a second second network of fibers to said second bonding layer. ### Claim 15 (depends on 14) The method of claim 14 further comprising the step of placing said second second network of fibers disposed upon said second side of said first network of fibers into contacting engagement with a third network of fibers, each fiber of said third network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions. ### Claim 16 (depends on 15) The method of claim 15 further comprising the steps of: prior to providing said third network of fibers in proximate contacting engagement with said second second network of fibers disposed upon said second side of said first network of fibers, applying a third bonding layer to said second side of said first network of fibers; and applying a third second network of fibers to said third bonding layer. ### Claim 17 (depends on 16) The method of claim 16 further comprising the steps of: prior to providing said third network of fibers in proximate contacting engagement with said second second network of fibers disposed upon said second side of said first network of fibers, applying a fourth bonding layer to said side of said third network of fibers in proximate contacting engagement with said second side of said first network of fibers; and applying a fourth second network of fibers to said fourth bonding layer. ### Claim 18 (depends on 14) The method of claim 14 wherein said first second network of fibers comprises a first and second portion of fibers, said first and second portion of fibers being different, wherein said method further comprises the steps of: applying said first portion of fibers to said first bonding layer; and, applying said second portion of fibers to said first bonding layer. ### Claim 19 (depends on 14) The method of claim 14 further comprising the step of: further processing said absorbent sanitary paper product with a process selected from the group consisting of embossing, printing, perforating, slitting, folding, winding, combinations thereof.