# US 10,369,062 B2 · Nonwoven fabric laminate and absorbent article having nonwoven fabric laminate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,062 B2 - Document ID: US10369062B2 - Status: Granted - Kind: B2 - Application number: 14/917,062 - Filed: 2014-09-26 - Published: 2016-07-28 - Granted: 2019-08-06 - Earliest claimed: 2013-09-30 - Assignees: Livedo Corporation - Applicants: Livedo Corporation - Inventors: Yuki Takahashi; Kenji Nakaoka - Web page: https://patentgrep.com/patent/US10369062B2 ## CPC - A61F 13/538: characterised by specific fibre orientation or weave - A61F 13/49019: {the elastic means being placed longitudinally, transversely or diagonally over the article} - A61F 13/51476: {being three-dimensional, e.g. embossed, textured, pleated, or with three-dimensional features, like gathers or loops} - A61F 13/51478: {being a laminate, e.g. multi-layered or with several layers} - B32B 5/022: {Non-woven fabric} - B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} - D04H 1/559: the fibres being within layered webs - B32B 2250/03: 3 layers - B32B 2250/20: All layers being fibrous or filamentary - B32B 2307/54: Yield strength; Tensile strength - B32B 2307/724: Permeability to gases, adsorption - B32B 2307/726: Permeability to liquids, absorption - B32B 2555/00: Personal care - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - 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) ## Abstract An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2) and the second nonwoven fabric layer (3) are joined to each other at first joining parts (6), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at second joining parts (7), and a number of the first joining parts is smaller than that of the second joining parts (7). ## Claims ### Claim 1 An absorbent article comprising an exterior sheet formed of a plurality of nonwoven fabric layers, wherein the exterior sheet is located on an outer side of the absorbent article and has a first nonwoven fabric layer, a second nonwoven fabric layer and a third nonwoven fabric layer from the outer side of the absorbent article, the first nonwoven fabric layer and the second nonwoven fabric layer are joined to each other at first joining parts, the second nonwoven fabric layer and the third nonwoven fabric layer are joined to each other at second joining parts, a number of the first joining parts is smaller than that of the second joining parts, and no elastic member is provided between the first nonwoven fabric layer and the second nonwoven fabric layer and between the second nonwoven fabric layer and the third nonwoven fabric layer. ### Claim 2 (depends on 1) The absorbent article according to claim 1, wherein a total area of the first joining parts is smaller than that of the second joining parts. ### Claim 3 (depends on 1) The absorbent article according to claim 1, wherein both a plurality of the first joining parts and a plurality of the second joining parts are aligned in one direction and another direction in the exterior sheet. ### Claim 4 (depends on 1) The absorbent article according to claim 1, wherein each of the first nonwoven fabric layer, the second nonwoven fabric layer and the third nonwoven fabric layer is made of a spunbonded nonwoven fabric or an air-through nonwoven fabric. ### Claim 5 (depends on 4) The absorbent article according to claim 4, wherein the first joining part and/or the second joining part has a shape that is shorter in an orientation direction of fibers constituting the nonwoven fabric than in its orthogonal direction. ### Claim 6 (depends on 1) The absorbent article according to claim 1, wherein an elastic member is disposed to a skin-facing side of the exterior sheet, and the first joining part has a shape that is shorter in an extending direction of the elastic member than in an orthogonal direction thereof. ### Claim 7 (depends on 1) The absorbent article according to claim 1, wherein an elastic member is disposed to a skin-facing side of the exterior sheet, and a plurality of the first joining parts are aligned in an extending direction of the elastic member and an orthogonal direction thereof, and a distance between the first joining parts in the extending direction is wider than that in the orthogonal direction. ### Claim 8 (depends on 1) The absorbent article according to claim 1, wherein the absorbent article is a pants-type disposable diaper, an elastic member extending in a width direction of the diaper is disposed at a body circumference part of the diaper between the exterior sheet and an inner sheet provided on a skin-facing side of the exterior sheet, and the first joining part has a shape that is longer in a longitudinal direction of the diaper than in the width direction of the diaper. ### Claim 9 (depends on 1) The absorbent article according to claim 1, wherein the absorbent article is a pants-type disposable diaper, an elastic member extending in a width direction of the diaper is disposed at a body circumference part of the diaper between the exterior sheet and an inner sheet provided on a skin-facing side of the exterior sheet, and a plurality of the first joining parts are aligned in a longitudinal direction of the diaper and the width direction of the diaper, and a distance between the first joining parts in the width direction of the diaper is wider than that in the longitudinal direction of the diaper. ### Claim 10 A nonwoven fabric laminate in which a first nonwoven fabric layer, a second nonwoven fabric layer and a third nonwoven fabric layer are laminated in this order, wherein the first nonwoven fabric layer and the second nonwoven fabric layer are joined to each other at first joining parts, the second nonwoven fabric layer and the third nonwoven fabric layer are joined to each other at second joining parts, a number of the first joining parts is smaller than that of the second joining parts, and no elastic member is provided between the first nonwoven fabric layer and the second nonwoven fabric layer and between the second nonwoven fabric layer and the third nonwoven fabric layer. ### Claim 11 (depends on 10) The nonwoven fabric laminate according to claim 10, wherein a total area of the first joining parts is smaller than that of the second joining parts. ### Claim 12 (depends on 10) The nonwoven fabric laminate according to claim 10, wherein both a plurality of the first joining parts and a plurality of the second joining parts are aligned in one direction and another direction in the nonwoven fabric laminate. ### Claim 13 (depends on 10) The nonwoven fabric laminate according to claim 10, wherein each of the first nonwoven fabric layer, the second nonwoven fabric layer and the third nonwoven fabric layer is made of a spunbonded nonwoven fabric or an air-through nonwoven fabric. ### Claim 14 (depends on 13) The nonwoven fabric laminate according to claim 13, wherein the first joining part and/or the second joining part has a shape that is shorter in an orientation direction of fibers constituting the nonwoven fabric than in its orthogonal direction.