WO2016208280A1 - Disposable wearable article - Google Patents

Disposable wearable article Download PDF

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Publication number
WO2016208280A1
WO2016208280A1 PCT/JP2016/063627 JP2016063627W WO2016208280A1 WO 2016208280 A1 WO2016208280 A1 WO 2016208280A1 JP 2016063627 W JP2016063627 W JP 2016063627W WO 2016208280 A1 WO2016208280 A1 WO 2016208280A1
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WO
WIPO (PCT)
Prior art keywords
layer sheet
sheet
openings
waist
outer layer
Prior art date
Application number
PCT/JP2016/063627
Other languages
French (fr)
Japanese (ja)
Inventor
瀧野　俊介
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201680024870.XA priority Critical patent/CN107530207B/en
Publication of WO2016208280A1 publication Critical patent/WO2016208280A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers

Definitions

  • the present disclosure relates to disposable wearing articles such as diapers.
  • Patent Document 1 a front waist area, a rear waist area, a crotch area located between the front and rear waist areas, an outer layer sheet located on the non-skin facing surface side, and an elastic layer located on the skin facing surface side A disposable wearing article is disclosed.
  • the outer layer sheet is joined to the elastic layer at a plurality of joint portions extending in the longitudinal direction of the diaper, and the outer layer sheet is convexly curved to the outer surface at the non-joint portion located between the joint portions.
  • a part non-joining part
  • the present invention is an improvement of the conventional disposable wearing article, wherein the plurality of openings enhance the breathability inside the diaper without impairing the feeling of wearing, and the disposable wearing article without excrement from the opening to the outside
  • the challenge is to provide
  • the present invention has the 1st waist area which is one of the front and back waist area which has a lengthwise direction and a transverse direction which intersects it, and a skin opposed surface and a non-skin opposed surface, and the front and back It is directed to a disposable wearable article including a second waist area, which is the other of the waist areas, a crotch area located between the first and second waist areas, and a waist opening and a pair of leg openings.
  • At least a first waist region of the first and second waist regions includes an outer layer sheet located on the non-skin facing surface side, and an elastic layer located on the skin facing surface side,
  • the outer layer sheet has the plurality of longitudinally extending joint portions and a plurality of non-joint portions located between the joint portions, and the elastic layer is joined to the elastic layer at the joint portions.
  • An intermediate sheet positioned on the non-skin-facing surface side, a moisture-permeable inner layer sheet positioned on the skin-facing surface, and a laterally extending elastic member interposed between the intermediate sheet and the inner layer sheet
  • at least one of the outer layer sheet and the intermediate sheet has a plurality of openings spaced apart from each other in the longitudinal direction and the lateral direction, and the opening is not formed in the inner layer sheet .
  • the plurality of openings have a first opening located in the outer layer sheet and a second opening located in the intermediate sheet, and the first opening and the second opening do not overlap each other in a plan view.
  • a wearing article has a first opening located in the outer layer sheet and a second opening located in the intermediate sheet, and does not overlap each other in plan view, so that the sheet strength is not locally reduced. It is possible to suppress the occurrence of sheet breakage starting from the portion.
  • the inner layer sheet, the intermediate sheet and the outer layer sheet are formed of a fiber non-woven sheet, and the mass per unit area of the inner layer sheet is from the mass per unit area of the intermediate sheet and the outer layer sheet Too small.
  • the inner layer sheet, the intermediate sheet and the outer layer sheet are formed of a fiber non-woven sheet, and the mass per unit area of the inner layer sheet is from the mass per unit area of the outer layer sheet and the intermediate sheet Because of its small size, the inner layer sheet has air permeability sufficient to allow the air inside the diaper to permeate.
  • the plurality of openings are not disposed at the inner end of the first and second waist regions, the plurality of openings are disposed at the inner end of the first and second waist regions. Since there is not, the seat strength of the inner end decreases, and there is no risk that the movement of the wearer's thigh will cause a sheet break in a part of the inner end.
  • a waist panel defining the first and second waist regions; and an absorbent panel extending from the crotch region to the first and second waist regions, the plurality of openings including the first and second openings In one waist area of the waist area, it is disposed outside the longitudinal direction of the absorbent panel.
  • the plurality of openings are arranged on the outer side in the longitudinal direction of the absorbent panel in one waist region, it is possible to avoid skin problems caused by the stuffiness inside the diaper 10.
  • the plurality of openings are each in the form of dots, each having a diameter of about 0.5 to 2.5 mm, a longitudinal separation of about 5.0 to 20.0 mm, and a lateral separation of about about It is 5.0 to 20.0 mm.
  • a plurality of openings are formed in the outer layer sheet and the intermediate sheet, and the inner layer sheet has air permeability. Therefore, it is excellent in breathability and can prevent the stuffy inside of a diaper. Moreover, it is possible to prevent the excrement from leaking out from the inside of the diaper by forming the plurality of openings in the inner layer sheet.
  • FIG. 2 illustrates specific embodiments of the present invention and include not only the essential features of the invention, but also optional and preferred embodiments.
  • the partially broken development top view of the wearing article extended to a longitudinal direction and the width direction until the time of the maximum expansion of each elastic body (The extent to which the gathers by the contraction effect of an elastic material are lost) seen from the outside side.
  • the following embodiments relate to the disposable wearing article shown in FIGS. 1 to 7 and include not only the essential configuration of the invention but also optional and preferable configurations.
  • a disposable diaper 10 shown as an example of the disposable wearing article according to the present invention has a skin facing surface and a non-skin facing surface facing it, longitudinal direction Y, lateral direction X and thickness direction Z And has an annular elastic waist panel 11 extending around the waist, an absorbent panel 12 joined to the elastic waist panel 11, a front waist region (first or second waist region) 13, and a rear waist region A first or second waist area 14) and a crotch area 15 located between the front and rear waist areas 13 and 14 are included.
  • the diaper 10 further has a longitudinal center line P that bisects the dimension in the lateral direction X and a transverse center line Q that bisects the dimension in the longitudinal direction Y.
  • the elastic waist panel 11 is composed of a front waist panel 16 forming a front waist region 13 and a rear waist panel 17 forming a rear waist region 14.
  • the front and rear waist panels 16, 17 respectively have an inner edge 16a, 17a extending in the lateral direction X, and an outer edge 16b, 17b extending in the lateral direction X opposite to the inner edge 16a, 17a in the longitudinal direction Y between the inner and outer end edges 16a, 16b, 17a, 17b, and has a same rectangular rectangular shape defined by both side edges 16c, 16d, 17c, 17d extending in the longitudinal direction Y.
  • the inner and outer end edges 16a, 16b, 17a, 17b and the side edges 16c, 16d, 17c, 17d of the front and rear waist panels correspond to the inner and outer end edges and the side edges of the front and rear waist regions 13, 14, respectively.
  • the respective side edges of the front waist panel 16 (the side edges of the front waist region 13) and the side edges of the rear waist panel 17 (the side edges of the rear waist region 14) are overlapped with each other, Intersectingly extending side seams 23 are connected to define a waist opening 24 and a pair of leg openings 25.
  • the side seams 23 are made by known bonding means, for example, various kinds of heat welding means such as heat welding and ultrasonic welding.
  • the front and rear waist regions 13 and 14 respectively have inner ends 13 A and 14 A located on the leg opening 25 side and outer ends 13 B and 14 B located on the waist opening 24 side for convenience of explanation.
  • a central portion 13C, 14C is located between the inner end 13A, 14A and the outer end 13B, 14B.
  • the inner and outer end portions 13A, 13B, 14A, 14B have a size of about 10 to 30% of the dimension (length dimension of the side edge portion) L1 of the longitudinal direction Y of the front and rear waist regions 13, 14 , 14 C have a size of about 40 to 80% of the dimension of the longitudinal direction Y of the front and rear waist regions 13, 14.
  • the front and rear waist regions 13 and 14 each include a non-stretchable outer layer sheet 30 located on the non-skin facing surface side and an elastic layer 31 located on the skin facing surface side.
  • the elastic layer 31 is interposed between the intermediate sheet 32 located on the non-skin facing surface side, the breathable inner layer sheet 33 located on the skin facing surface side, and the intermediate sheet 32 and the inner layer sheet 33.
  • the front and rear waist elastics 35 and 36 are interposed between the intermediate sheet 32 and the inner layer sheet 33 forming the front and rear waist regions 13 and 14, respectively, and are attached retractably in a state of being stretched in the lateral direction X There is.
  • the front and rear waist regions 13 and 14 have front and rear elastic regions that can be expanded and contracted in the lateral direction X by arranging the front and rear waist elastic bodies 35 and 36, respectively.
  • the intermediate sheet 32 and the inner layer sheet 33 are bonded to each other by, for example, a hot melt adhesive applied to the entire circumference of the front and rear waist elastics 35, 36 interposed therebetween.
  • the two sheets 32 and 33 may be bonded to each other by hot melt adhesive applied in various known patterns such as dot shape and spiral shape on the entire inner surface of one side, but in this way, the front and rear waist elastics 35
  • the elastic layer 31 becomes relatively soft and the contact with the skin of the wearer becomes good.
  • the outer layer sheet 30 and the intermediate sheet 32 are non-elastic and stretchable, and can be formed from various known fibrous non-woven fabrics containing thermoplastic synthetic fibers, or laminate sheets thereof and plastic films.
  • the inner layer sheet 33 can be formed from various well-known fibrous nonwoven fabrics which are inelastic stretchable and breathable.
  • a thermoplastic synthetic fiber for example, a synthetic fiber such as polyethylene, polypropylene, polyethylene terephthalate or a mixture of synthetic fibers, or a composite fiber using two or more of these synthetic resins can be used.
  • a fiber nonwoven fabric various well-known fiber nonwoven fabrics, such as a spun bond fiber nonwoven fabric, a SMS fiber nonwoven fabric, an air through fiber nonwoven fabric, can be used.
  • the outer layer sheet 30 and the intermediate sheet 32 are porous sheets having a plurality of openings 61 and 62, and have air permeability.
  • the front and rear waist elastics 35, 36 for example, a thread-like, string-like or strand-like elastic material which is fixed by being stretched to a thickness of about 300 to 500 dtex and 1.5 to 3.5 times can be used. Further, the thickness and expansion ratio of the front and rear waist elastics 35 and 36 can be appropriately changed in accordance with the predetermined elastic force of the elastic region in which they are disposed. Although not shown, the contraction force of the front and rear waist elastics 35, 36 is substantially in the center of the front and rear waist regions 13, 14 and in the region where the absorbent core is located in the absorbent panel 12. Inelastic zones may be arranged which are not expressed or both elastic bodies 35, 36 are not present.
  • the inelastic area By arranging the inelastic area in the area where the absorbent core of the front and rear waist areas 13 and 14 is present, it is possible that the contractile force of both elastic bodies 35 and 36 acts directly on the absorbent core to reduce its absorbability. Can be suppressed.
  • the outer layer sheet 30 and the intermediate sheet 32 are joined to each other by a plurality of joining lines (joining parts) 41 and 42 which extend continuously in the longitudinal direction Y and are separated from each other in the transverse direction X.
  • the bonding lines 41 and 42 are a first bonding line 41 for bonding the outer layer sheet 30 and the elastic layer 31 to each other at the outer end portions 13B and 14B and the central portions 13C and 14C of the front and rear waist regions 13 and 14, and the inner end portion 13A. , 14A, and a second bonding line 42 for bonding the outer layer sheet 30 and the elastic layer 31.
  • the first and second bonding lines 41 and 42 are welding lines for bonding the outer layer sheet 30 and the intermediate sheet 32 by thermal welding means such as thermal welding and ultrasonic processing, and in the illustrated example, in the longitudinal direction Y Although it is stripe form extended continuously straightly, a plurality of dot-like welding parts may be intermittently provided in the longitudinal direction Y.
  • thermal welding means such as thermal welding and ultrasonic processing
  • a plurality of dot-like welding parts may be intermittently provided in the longitudinal direction Y.
  • the first bonding line 41 is longer and wider than the second bonding line 42, and the length of the first bonding line 41 is longer.
  • the length dimension (dimension in the longitudinal direction Y) L2 is about 120 to 220 mm
  • the width dimension (dimension in the lateral direction X) W1 is about 0.5 to 2.0 mm.
  • the length dimension L3 of the second bonding line 42 is approximately 30 to 80 mm
  • the width dimension is 0.3 to 1.0 mm.
  • the separation dimension (pitch) R1 between the first bonding lines 41 adjacent to each other in the lateral direction X is about 5.0 to 20.0 mm
  • the separation dimension between the second bonding lines 42 adjacent to each other in the lateral direction X is about 3.0 to 10.0 mm.
  • the separation dimension R1, R2 of the first and second bonding lines 41 and 42 means a separation dimension between mutually opposing side edges of bonding lines adjacent to each other in the lateral direction X.
  • the outer layer sheet 30 and the intermediate sheet 32 or the intermediate sheet 32 and the inner layer sheet 33 are viewed from the outside A graphic sheet having possible graphics may be arranged.
  • the dimension of the outer layer sheet 30 in the longitudinal direction Y is formed larger than that of the inner layer sheet 33 and the intermediate sheet 32, and a portion extending outward from the outer edge of both sheets 32, 33 in the longitudinal direction Y is You may bend
  • the rear waist panel 17 may have a trapezoidal shape with a larger outside dimension than the front waist panel 16, and a buttocks cover portion may be formed extending further inward in the longitudinal direction Y from the side seams 23.
  • the outer layer sheet 30 has a ridge portion (non-bonding portion) 45 located between the first bonding lines 41.
  • the outer layer sheet 30 is joined to a plurality of first joining lines 41 which extend in the longitudinal direction Y and are separated in the transverse direction X with respect to the elastic layer 31 which expands and contracts in the transverse direction X.
  • the ridge portion 45 located between the first bonding lines 41 is convexly curved outward in the thickness direction Z It has a shape.
  • the ridges 45 and the groove portions at which the first bonding lines 41 are positioned are alternately located in the lateral direction X, and the ridge portions 45 and the groove portions are repeated in the lateral direction X to repeat the unevenness in the lateral direction It has a shape.
  • the collar portion 45 is formed at the outer end portions 13B and 14B and the central portions 13C and 14C of the front and rear waist regions 13 and 14 where the front and rear waist elastics 35 and 36 are located. Since the outer layer sheet 30 is divided relatively small in the lateral direction X by the first bonding line 41, a plurality of asperities (a plurality of gathers) are not formed in the ridge portion 45, and the convex curved shape is continuous as a whole. One convex curved portion is formed.
  • ridges convex outward in the thickness direction Z extending in the longitudinal direction are formed Be done. Since the separation dimension R2 between the second bonding lines 42 is smaller than the separation dimension R1 between the first bonding lines 41, the ridge portion located between the second bonding lines 42 is a ridge located between the first bonding lines 41. The height (dimension in the thickness direction Z) is smaller than that of the portion 45.
  • the intermediate sheet 32 is disposed in the entire area of the front and rear waist regions 13 and 14, but is disposed only at the outer end portions 13B and 14B and the central portions 13C and 14C, and at the inner end portions 13A and 14A. May not be arranged.
  • the intermediate sheet 32 and the inner layer sheet 33 are formed with a plurality of relatively small gathers 46 and 47 which repeat undulation in the lateral direction X by contraction of the front and rear waist elastics 35 and 36.
  • the collar portion 45 of the outer layer sheet 30 and the intermediate sheet 32 are separated from each other in the thickness direction Z, and a tubular or cylindrical air passage 50 extending in the longitudinal direction Y is formed therebetween.
  • the elastic layer 31 may be configured only with the front and rear waist elastics 35 and 36 and the inner layer sheet 33 and may not have the intermediate sheet 32.
  • the front and rear waist elastics 35 and 36 are covered with the plurality of sheets of the outer layer sheet 30 and the intermediate sheet 32, the outer shape is not clearly grasped from the outside.
  • the ridges 45 of the outer layer sheet 30 are separated from the elastic layer 31 and convexly curved outward in the thickness direction Z, light traveling toward the diaper 10 from the outside is scattered on the outer surface of the diaper 10 and the front and rear waist elasticity The visibility of the body 35, 36 is further reduced.
  • the diaper 10 has an underwear-like appearance as compared to when the front and rear waist elastics 35, 36 are clearly viewed, and gives the wearer a good impression of softness and softness. it can.
  • the ridge portion 45 extend substantially straight in the longitudinal direction Y without deformation or meandering so that air flows stably in the air passage 50 of the outer layer sheet 30.
  • the mass (in some cases, the density or specific volume) of the outer layer sheet 30, the width dimension W1 of the first bonding line 41, and the first bonding line 41 It is preferable to appropriately adjust the separation dimension R1 in the lateral direction X (the dimension in the lateral direction X of the ridge 45), the contraction amount of the elastic layer 31, and the like.
  • the flange portion 45 only one convexly curved gather is formed between the first bonding lines 41.
  • the shape of the air passage 50 is stable as compared with the case where a plurality of gathers are formed. Air can flow easily. Moreover, since only a single gather is formed in the collar portion 45, a regular pleated three-dimensional pattern is formed on the outer surface of the diaper 10, so the designability of the appearance can be improved.
  • the absorbent panel 12 has a front end 12A located in the front waist area 13 and a rear end 12B located in the rear waist area 14 between the front and rear ends 12A, 12B. And an intermediate portion 12C extending in the longitudinal direction Y and defining the crotch region 15.
  • the absorbent panel 12 is located on the skin-facing surface side, and has an inner sheet 51 made of a liquid non-woven fibrous non-woven fabric, an absorbent absorbent core 52 having curved side edges, and at least an absorbent core.
  • a liquid-impervious leakproof sheet 53 covering the entire bottom surface of the core 52 and a liquid-impervious outer sheet 54 forming the entire non-skin facing surface of the absorbent panel 12 are provided.
  • the absorbent core 52 is a core material formed of a mixture of fluff wood pulp and superabsorbent polymer particles and the like, and a liquid-absorbing diffusive core cover sheet (not shown) such as tissue paper which covers the entire core material. And). Further, in the absorbent panel 12, a plurality of thread-like, strand-like or string-like leg elastic bodies 55 extending in the longitudinal direction Y at both side edges are disposed. By arranging the leg elastics 55, the side edges of the crotch area 15 are formed with leg elastic areas, and the front and rear elastic areas of the front and rear waist areas 13 and 14 and the leg elastic areas A virtual elastic band is formed that extends annularly around the wearer's thighs in the worn state. Although not shown, in order to prevent the side leakage of the excrement, a pair of leakproof walls that stand up toward the wearer's body in the wearing state may be arranged on both sides of the absorbent panel 12 .
  • the outer layer sheet 30 has a plurality of first openings (outside openings) 61 passing therethrough, and the intermediate sheet 32 has a plurality of openings passing therethrough.
  • the second opening (inner opening) 62 is located.
  • the inner layer sheet 33 does not have a plurality of openings. It is also conceivable to form a plurality of openings in all of the inner and outer layer sheets 30, 33 and the intermediate sheet 32 in order to improve the air permeability of the diaper 10 to prevent internal stuffiness. The excrement inside may leak from the opening of the inner layer sheet 33 to the outside.
  • the sheet strength is significantly reduced compared to the other portions, and when the diaper 10 is pulled up at the time of wearing, the portion with low sheet strength There is also a possibility that sheet breakage may occur.
  • the excrement inside does not leak to the outside, and the sheet strength is locally greatly reduced. Absent.
  • the inner layer sheet 33 has moisture permeability, air (inner air) in the diaper 10 can be transmitted to the outside even if a plurality of openings are not formed, and the stuffiness in the diaper 10 can be prevented. it can.
  • the inside air that has passed through the inner layer sheet 33 flows through the second opening 62 and flows into the air passage 50.
  • the internal air that has flowed into the air passage 50 passes through the first opening 61 and is released to the outside of the diaper 10.
  • air (external air) outside the diaper 10 flows from the first opening 61 into the air passage 50, passes through the second opening 62, passes through the inner layer sheet 33, and enters the inside of the diaper 10. it can.
  • the breathability of the diaper 10 can be improved and internal stuffiness can be prevented, without excrement leaking to the outside or the sheet strength being partially greatly reduced.
  • the outer layer sheet 30 and the intermediate sheet 32 are joined to each other by a plurality of first and second joining lines 41 and 42 extending in the longitudinal direction Y, and the outer end opening of the air passage 50 located at the waist opening edge Air can enter and be discharged, and the breathability of the diaper 10 is excellent as compared to the case where the outer end opening is sealed.
  • the outer end opening may be sealed as long as the inflow and discharge of air can be controlled so that the inside of the diaper 10 is not stuffed in the first and second openings 61 and 62.
  • the diaper 10 has a predetermined air permeability, only at least one of the first and second openings 61 and 62 may be formed.
  • a sheet not having a plurality of openings for example, when the outer layer sheet 30 has a plurality of first openings 61 but the second opening 62 is not disposed in the intermediate sheet 32, the intermediate sheet It is preferable that 32 be at least breathable.
  • the outer layer sheet 30 has air permeability.
  • the first and second openings 61, 62 are not formed by the through holes penetrating the outer layer sheet 30 made of the fiber non-woven fabric and the intermediate sheet 32 in the laminated state.
  • the first and second sheets 30 and 32 are formed separately by punching and heat embossing. Therefore, those opening edges may be welded or burrs may cause irritation if they touch the skin directly, but such an opening is not formed in the inner layer sheet 33, so the skin is stimulated. It will not be done.
  • the fiber non-woven fabric in which a plurality of openings are formed in advance is laminated in this way, after the front and rear waist elastics 35, 36 are disposed between the inner layer sheet 33 and the intermediate sheet 32, perforating processing is performed There is no risk that the front and rear waist elastics 35, 36 will be cut when drilling.
  • the first bonding line 41 is formed by an adhesive, it is necessary to adjust the positions of the portion to which the adhesive is applied and the portion to which the opening is to be formed so that the adhesive does not leak from the opening. Solves such manufacturing problems by making the first bonding line a seal line by welding and forming an opening in the outer layer sheet 30 and the intermediate sheet 32 in advance, which is a big problem in high-speed manufacturing lines can do.
  • the first opening 61 and the second opening 62 do not overlap with each other in a plan view of the diaper 10. If the two openings 61 and 62 overlap each other in plan view, the sheet strength may be reduced in the overlapping portion to cause sheet breakage, but the two openings 61 and 62 do not overlap each other in plan view Therefore, the low sheet strength portion formed only from the inner layer sheet 33 is not formed, and there is no possibility that the sheet breakage may occur during the wearing operation.
  • the first and second openings 61, 62 do not overlap each other in a plan view of the diaper 10 means the first and second openings 61, 61 by the openings penetrating the outer layer sheet 30 and the intermediate sheet 32.
  • part of the first and This includes overlapping, and for example, the case where about 5% or less of the first openings 61 overlap with the second opening 62 in plan view. In such a case, since there is only a small portion consisting only of the inner layer sheet 33, there is no risk of sheet breakage from the portion during wearing.
  • the arrangement pattern of the first and second openings 61 and 62 can be selected as appropriate, but the presence of the collar portion 45 in order for the diaper 10 to have the required air permeability.
  • the diameter of the first and second openings 61 and 62 is about 0.5 to 3.0 mm
  • the separation dimension R3 and R4 in the longitudinal direction Y at the both openings 61 and 62 is about 5 to 15 mm.
  • the separation dimensions R5 and R6 in the lateral direction X are preferably about 5 to 15 mm.
  • the aperture ratio of the first and second openings 61 and 62 ie, the ratio of the total area of the first opening 61 to the total area of the outer layer sheet 30, and the ratio of the total area of the second opening 62 to the total area of the intermediate sheet 32. Is preferably about 2% or more.
  • the moisture permeability of the inner layer sheet 33 is preferably 100 m 3 / m 2 / sec or more.
  • the moisture permeability of the inner layer sheet 33 was measured using a known air permeability tester, for example, KES-F8-AP1 manufactured by Kato Tech Co., Ltd., according to the method according to the JIS L 1096A Frasil method.
  • a sample obtained by cutting out a portion of the inner layer sheet 33 into a predetermined size is set at a predetermined position of a testing machine, and air of a constant flow rate V (unit: m 3 / m 2 ⁇ s) is passed through the sample.
  • Pressure difference ⁇ Q (unit: kPa) was measured.
  • the moisture permeability of the inner layer sheet 33 was calculated by the formula, and the average value of the measurement results of 5 times.
  • the first and second openings 61 and 62 may have various known shapes such as an ellipse, a rectangle such as a rectangle or a square, a triangle, or a star, in addition to the circular shape as illustrated.
  • the outer layer sheet 30 and the intermediate sheet 32 are sealed by thermal welding or ultrasonic welding. Since the two sheets 30 and 32 are welded at the first bonding line 41, bonding strength is higher than bonding with an adhesive. In addition, when the first bonding line 41 is formed by applying an adhesive, there is a risk that the adhesive may leak to the outside from the first and second openings 61 and 62 located on the first bonding line 41. There is no possibility that such a situation will occur because it is welded.
  • the outer layer sheet 30, the intermediate sheet 32, and the inner layer sheet 33 are made of a fiber non-woven fabric, and the mass per unit area of the inner layer sheet 30 is smaller than the mass per unit area of the outer layer sheet 30 and the intermediate sheet 32. Is preferred.
  • the inner layer sheet 33 does not have a plurality of openings, but has moisture permeability to such an extent that air in the diaper 10 is transmitted, and is relatively thin to have moisture permeability, and has a unit area
  • the weight per unit is preferably low, for example, the weight of the outer layer sheet 30 and the intermediate sheet 32 is about 13 to 25 g / m 2 , and the weight of the inner layer sheet 33 is about 11 to 13 g / m 2 .
  • the first and second openings 61 and 62 are not disposed at the inner end portions 13A and 14A of the front and rear waist regions 13 and 14.
  • FIG. 7 is a developed plan view similar to FIG. 2 of the diaper 10 in an example of a modification.
  • the first bonding line 41 is disposed only at the central portions 13C and 14C of the front and rear waist regions 13 and 14, and the second bonding line 42 is disposed at the inner and outer end portions 13A, 13B, 14A and 14B.
  • the first and second openings 61 and 62 are not disposed in a portion (outside portion) 65 located outside the absorbent panel 12 in the longitudinal direction Y .
  • the first and second openings 61, 62 are disposed in a portion (outer portion) 66 located on the outer side in the longitudinal direction Y of the absorbent panel 12. Since the outer portions 65 and 66 of the front and rear waist regions 13 and 14 are gripped and pulled up when the diaper 10 is worn, it is preferable to have the required sheet strength so that sheet breakage does not occur.
  • the outer portion 65 of the front waist region 13 is a portion that the wearer grips and pulls up when worn by the wearer, and does not arrange the first and second openings 61, 62, thereby providing required sheet strength. Can be maintained, and when pulling up the diaper 10, it can suppress that a part tears.
  • the outer portion 66 located on the outer side in the longitudinal direction Y of the absorbent panel 12 of the rear waist region 14 is a portion that contacts the waist of the wearer and is easily stuffed by excrement located on the back side.
  • the skin troubles such as rash are likely to occur, but in the present modification, the first and second openings 61 and 62 are located in the portion 66 so that the air permeability is good and the skin troubles It can be suppressed.
  • the non-existence area of the first and second openings 61 and 62 is located in the outer part 65 of the front waist area 13, but the first and second openings are located in the outer part 65 of the front waist area 13.
  • 61 and 62 may be disposed, and a non-existing area of the first and second openings 61 and 62 may be disposed in the outer portion 66 of the rear waist region 14.
  • the members constituting the wearing article 10 may use known materials commonly used in the field of this kind without limitation unless otherwise specified. it can. Also, the terms “first” and “second” as used herein are used merely to distinguish similar elements, locations, and the like.

Abstract

Provided is a disposable wearable article wherein air permeability inside a diaper is improved by way of a plurality of openings without losing comfort and bodily wastes are prevented from leaking to the outside from the openings. At least one of a front waist region and a rear waist region (13, 14) of a disposable wearable article (10) comprises an outer layer sheet (30) positioned on the side not facing the skin, and an elastic layer (31) positioned on the side facing the skin. The elastic layer (31) comprises an intermediate layer sheet (32) positioned on the side not facing the skin, a moisture-permeable inner layer sheet (33) positioned on the side facing the skin, and an elastic member (35, 36) interposed between the intermediate layer sheet (32) and the inner layer sheet (33) and extending in the lateral direction (X). The outer layer sheet (30) and the elastic layer (31) are fixed to each other via a plurality of joining portions (41, 42) extending in the longitudinal direction (Y). At least one of the outer layer sheet (30) and the intermediate layer sheet (32) comprises a plurality of openings (61, 62) disposed to be mutually separated in the longitudinal direction (Y) and in the lateral direction (X), and no openings (61, 62) are formed on the inner layer sheet (33).

Description

使い捨て着用物品Disposable Wearables
　本開示は、おむつ等の使い捨て着用物品に関する。 The present disclosure relates to disposable wearing articles such as diapers.
　特許文献１には、前ウエスト域と、後ウエスト域と、前後ウエスト域間に位置するクロッチ域と、非肌対向面側に位置する外層シートと、肌対向面側に位置する弾性層とを有する使い捨て着用物品が開示されている。 In Patent Document 1, a front waist area, a rear waist area, a crotch area located between the front and rear waist areas, an outer layer sheet located on the non-skin facing surface side, and an elastic layer located on the skin facing surface side A disposable wearing article is disclosed.
特開２０１０－２００９７４号（Ｐ２０１０－２００９７４Ａ）Unexamined-Japanese-Patent No. 2010-200974 (P2010-200974A)
　特許文献１に開示された着用物品では、外層シートは、おむつの縦方向へ延びる複数条の接合部において弾性層に接合され、接合部間に位置する非接合部において、外面に凸曲した畝部（非接合部）が形成されている。外層シートの畝部と、畝部と対向する透液性の内層シートとにそれらを貫通する通気開口が形成されていることによって、おむつ内部と外部とが連通されて、おむつ内部の蒸れが抑制されている。 In the wearing article disclosed in Patent Document 1, the outer layer sheet is joined to the elastic layer at a plurality of joint portions extending in the longitudinal direction of the diaper, and the outer layer sheet is convexly curved to the outer surface at the non-joint portion located between the joint portions. A part (non-joining part) is formed. By forming a ventilation opening passing through the buttocks of the outer layer sheet and the liquid-pervious inner layer sheet facing the buttocks, the inside and the outside of the diaper are communicated, and the stuffiness of the inside of the diaper is suppressed It is done.
　しかし、かかる着用物品では、着用者の肌に直接触れる内層シートに通気開口が形成されていることから、排泄物が通気開口から外部に漏れ出るおそれがある。また、通気開口は内層シートの開口と外層シートの開口とが平面視において互いに重なるように貫通するから、通気開口の形成された部分のシート強度が局所的に低くなり、おむつを引き上げるときに該部分を起点として破断を生じるおそれがある。さらに、通気開口が熱エンボス加工により形成された場合には、開口縁の一部が溶着されており、該溶着部分が直接肌に触れて刺激を与えるおそれもある。 However, in such a wearing article, since the ventilation opening is formed in the inner layer sheet in direct contact with the skin of the wearer, there is a possibility that the excrement may leak from the ventilation opening to the outside. Moreover, since the ventilation opening penetrates so that the opening of the inner layer sheet and the opening of the outer layer sheet overlap each other in plan view, the sheet strength of the portion where the ventilation opening is formed locally decreases, and the diaper is pulled up There is a risk of breakage starting from the part. Furthermore, when the ventilation opening is formed by heat embossing, a part of the opening edge is welded, and there is a possibility that the welded portion may touch the skin directly and give irritation.
　本発明は、従来の使い捨て着用物品の改良であって、複数の開口によって、着用感を損ねることなくおむつ内部の通気性を高めるとともに、開口から排泄物が外部に漏れ出ることのない使い捨て着用物品の提供を課題にしている。 The present invention is an improvement of the conventional disposable wearing article, wherein the plurality of openings enhance the breathability inside the diaper without impairing the feeling of wearing, and the disposable wearing article without excrement from the opening to the outside The challenge is to provide
　前記課題を解決するために、本発明は、縦方向及びそれに交差する横方向と、肌対向面及び非肌対向面とを有し、前後ウエスト域の一方である第１ウエスト域と、前記前後ウエスト域の他方である第２ウエスト域と、前記第１及び第２ウエスト域間に位置するクロッチ域と、ウエスト開口及び一対のレッグ開口とを含む使い捨て着用物品に向けられている。 In order to solve the above-mentioned subject, the present invention has the 1st waist area which is one of the front and back waist area which has a lengthwise direction and a transverse direction which intersects it, and a skin opposed surface and a non-skin opposed surface, and the front and back It is directed to a disposable wearable article including a second waist area, which is the other of the waist areas, a crotch area located between the first and second waist areas, and a waist opening and a pair of leg openings.
　上記着用物品において、前記第１及び第２ウエスト域のうちの少なくとも第１ウエスト域は、前記非肌対向面側に位置する外層シートと、前記肌対向面側に位置する弾性層とを含み、前記外層シートは、前記縦方向へ延びる複数条の接合部と前記接合部間に位置する複数の非接合部とを有し、前記接合部において前記弾性層に接合されており、前記弾性層は、前記非肌対向面側に位置する中間シート、前記肌対向面側に位置する透湿性の内層シートと、前記中間シートと前記内層シートとの間に介在された前記横方向へ延びる弾性部材とを含み、前記外層シート及び前記中間シートの少なくとも一方は、前記縦方向及び前記横方向において互いに離間して配置された複数の開口を有し、前記内層シートには、前記開口が形成されていない。 In the wear article, at least a first waist region of the first and second waist regions includes an outer layer sheet located on the non-skin facing surface side, and an elastic layer located on the skin facing surface side, The outer layer sheet has the plurality of longitudinally extending joint portions and a plurality of non-joint portions located between the joint portions, and the elastic layer is joined to the elastic layer at the joint portions. An intermediate sheet positioned on the non-skin-facing surface side, a moisture-permeable inner layer sheet positioned on the skin-facing surface, and a laterally extending elastic member interposed between the intermediate sheet and the inner layer sheet And at least one of the outer layer sheet and the intermediate sheet has a plurality of openings spaced apart from each other in the longitudinal direction and the lateral direction, and the opening is not formed in the inner layer sheet .
　前記接合部において、前記外層シートと前記中間シートとが溶着されているから、外層シートと中間シートとが溶着されていることによって、接着剤によって接合される場合に比して、接合強度が高くなる。 Since the outer layer sheet and the intermediate sheet are welded at the joint portion, the outer layer sheet and the intermediate sheet are welded, so that the joint strength is higher than when they are joined by an adhesive. Become.
　前記複数の開口は、前記外層シートに位置する第１開口と、前記中間シートに位置する第２開口とを有し、平面視において前記第１開口と前記第２開口とが互いに重なっていない。かかる着用物品では、外層シートに位置する第１開口と、中間シートに位置する第２開口とを有し、平面視において互いに重なっていないことから、局所的にシート強度が低くなることなく、該部分を起点とするシート破れが生じるのを抑制することができる。 The plurality of openings have a first opening located in the outer layer sheet and a second opening located in the intermediate sheet, and the first opening and the second opening do not overlap each other in a plan view. Such a wearing article has a first opening located in the outer layer sheet and a second opening located in the intermediate sheet, and does not overlap each other in plan view, so that the sheet strength is not locally reduced. It is possible to suppress the occurrence of sheet breakage starting from the portion.
　前記内層シート、前記中間シート及び前記外層シートは、繊維不織布シートから形成されており、前記内層シートの単位面積当たりの質量が、前記中間シートと前記外層シートとのそれぞれの単位面積当たりの質量よりも小さい。かかる着用物品において、内層シート、前記中間シート及び前記外層シートは、繊維不織布シートから形成されており、内層シートの単位面積当たりの質量が外層シートと中間シートとのそれぞれの単位面積当たりの質量より小さいことから、内層シートは、おむつ内部の空気を透過させることができる程度の通気性を有する。 The inner layer sheet, the intermediate sheet and the outer layer sheet are formed of a fiber non-woven sheet, and the mass per unit area of the inner layer sheet is from the mass per unit area of the intermediate sheet and the outer layer sheet Too small. In such a wearing article, the inner layer sheet, the intermediate sheet and the outer layer sheet are formed of a fiber non-woven sheet, and the mass per unit area of the inner layer sheet is from the mass per unit area of the outer layer sheet and the intermediate sheet Because of its small size, the inner layer sheet has air permeability sufficient to allow the air inside the diaper to permeate.
　前記複数の開口は、前記第１及び第２ウエスト域のうちの内端部には配置されていないから、複数の開口は、第１及び第２ウエスト域のうちの内端部に配置されていないことから、内端部のシート強度が低下して、着用者の大腿部の動きによって内端部の一部にシート破れが生じたりするおそれはない。 Since the plurality of openings are not disposed at the inner end of the first and second waist regions, the plurality of openings are disposed at the inner end of the first and second waist regions. Since there is not, the seat strength of the inner end decreases, and there is no risk that the movement of the wearer's thigh will cause a sheet break in a part of the inner end.
　前記第１及び第２ウエスト域を画成するウエストパネルと、前記クロッチ域から前記第１及び第２ウエスト域へ延びる吸収性パネルとを有し、前記複数の開口は、前記第１及び第２ウエスト域の一方のウエスト域において、前記吸収性パネルの前記縦方向の外側に配置される。かかる着用物品では、一方のウエスト域において、吸収性パネルの縦方向の外側に複数の開口が配置されることによって、おむつ１０内部の蒸れを原因とする肌トラブルを回避することができる。 A waist panel defining the first and second waist regions; and an absorbent panel extending from the crotch region to the first and second waist regions, the plurality of openings including the first and second openings In one waist area of the waist area, it is disposed outside the longitudinal direction of the absorbent panel. In such a wearing article, by arranging the plurality of openings on the outer side in the longitudinal direction of the absorbent panel in one waist region, it is possible to avoid skin problems caused by the stuffiness inside the diaper 10.
　前記複数の開口は、それぞれ、ドット状であって、径寸法が約０．５～２．５ｍｍ、前記縦方向の離間寸法が約５．０～２０．０ｍｍ、前記横方向の離間寸法が約５．０～２０．０ｍｍである。 The plurality of openings are each in the form of dots, each having a diameter of about 0.5 to 2.5 mm, a longitudinal separation of about 5.0 to 20.0 mm, and a lateral separation of about about It is 5.0 to 20.0 mm.
　本発明の１つ以上の実施形態に係る使い捨て着用物品によれば、少なくとも一方のウエスト域においては、外層シートと中間シートとに複数の開口が形成され、かつ、内層シートが通気性を有することから、通気性に優れ、おむつ内部の蒸れを防止することができる。また、内層シートに複数の開口が形成されていないことによって、おむつ内部から排泄物が漏れ出るのを防止することができる。 According to the disposable wearing article according to one or more embodiments of the present invention, in at least one waist region, a plurality of openings are formed in the outer layer sheet and the intermediate sheet, and the inner layer sheet has air permeability. Therefore, it is excellent in breathability and can prevent the stuffy inside of a diaper. Moreover, it is possible to prevent the excrement from leaking out from the inside of the diaper by forming the plurality of openings in the inner layer sheet.
　図面は、本発明の特定の実施の形態を示し、発明の不可欠な構成ばかりでなく、選択的及び好ましい実施の形態を含む。
本発明に係る使い捨て着用物品を正面から視た斜視図。 外面側から視た、各弾性体の最大伸長時（弾性材料の収縮作用によるギャザーがなくなる程度）まで縦方向及び幅方向に伸展した着用物品の一部破断展開平面図。 前ウエストパネルの分解図。 （ａ）図２のＩＶ（ａ）線に沿う断面図、（ｂ）図１のＩＶ（ｂ）線に沿う断面図。 図４（ａ）のＶ線で囲んだ領域の一部拡大図。 図１のＶＩ線で囲んだ領域の一部拡大図。 変形例の一例におけるおむつの図２と同様の展開平面図。 The drawings illustrate specific embodiments of the present invention and include not only the essential features of the invention, but also optional and preferred embodiments.
The perspective view which looked at the disposable wearing article concerning the present invention from the front. The partially broken development top view of the wearing article extended to a longitudinal direction and the width direction until the time of the maximum expansion of each elastic body (The extent to which the gathers by the contraction effect of an elastic material are lost) seen from the outside side. An exploded view of the front waist panel. (A) Sectional drawing which follows IV (a) line of FIG. 2, (b) Sectional drawing which follows IV (b) line of FIG. The elements on larger scale of the area | region enclosed with V line | wire of Fig.4 (a). The elements on larger scale of the area | region enclosed by VI line of FIG. The expansion | deployment top view similar to FIG. 2 of the diaper in an example of a modification.
　下記の実施の形態は、図１～図７に示す使い捨て着用物品に関し、発明の不可欠な構成ばかりではなく、選択的及び好ましい構成を含む。 The following embodiments relate to the disposable wearing article shown in FIGS. 1 to 7 and include not only the essential configuration of the invention but also optional and preferable configurations.
　図１～図３を参照すると、本発明の使い捨て着用物品の一例として示す使い捨ておむつ１０は、肌対向面及びそれに対向する非肌対向面と、縦方向Ｙと横方向Ｘと厚さ方向Ｚとを有し、ウエスト周り方向へ延びる環状の弾性ウエストパネル１１と、弾性ウエストパネル１１と接合される吸収性パネル１２と、前ウエスト域（第１又は第２ウエスト域）１３と、後ウエスト域（第１又は第２ウエスト域）１４と、前後ウエスト域１３，１４間に位置するクロッチ域１５とを含む。おむつ１０は、さらに、横方向Ｘの寸法を二等分する縦中心線Ｐと縦方向Ｙの寸法を二等分する横中心線Ｑとを有する。弾性ウエストパネル１１は、前ウエスト域１３を形成する前ウエストパネル１６と、後ウエスト域１４を形成する後ウエストパネル１７とから構成される。 With reference to FIGS. 1 to 3, a disposable diaper 10 shown as an example of the disposable wearing article according to the present invention has a skin facing surface and a non-skin facing surface facing it, longitudinal direction Y, lateral direction X and thickness direction Z And has an annular elastic waist panel 11 extending around the waist, an absorbent panel 12 joined to the elastic waist panel 11, a front waist region (first or second waist region) 13, and a rear waist region A first or second waist area 14) and a crotch area 15 located between the front and rear waist areas 13 and 14 are included. The diaper 10 further has a longitudinal center line P that bisects the dimension in the lateral direction X and a transverse center line Q that bisects the dimension in the longitudinal direction Y. The elastic waist panel 11 is composed of a front waist panel 16 forming a front waist region 13 and a rear waist panel 17 forming a rear waist region 14.
　前後ウエストパネル１６，１７は、それぞれ、横方向Ｘへ延びる内端縁１６ａ，１７ａと、縦方向Ｙにおいて内端縁１６ａ，１７ａと離間対向して横方向Ｘへ延びる外端縁１６ｂ，１７ｂと、内外端縁１６ａ，１６ｂ，１７ａ，１７ｂ間において縦方向Ｙへ延びる両側縁１６ｃ，１６ｄ，１７ｃ，１７ｄとによって画定された同形同大の横長矩形状を有する。なお、前後ウエストパネルの内外端縁１６ａ，１６ｂ，１７ａ，１７ｂと両側縁１６ｃ，１６ｄ，１７ｃ，１７ｄとは、それぞれ、前後ウエスト域１３，１４の内外端縁と両側縁とに対応する。 The front and rear waist panels 16, 17 respectively have an inner edge 16a, 17a extending in the lateral direction X, and an outer edge 16b, 17b extending in the lateral direction X opposite to the inner edge 16a, 17a in the longitudinal direction Y Between the inner and outer end edges 16a, 16b, 17a, 17b, and has a same rectangular rectangular shape defined by both side edges 16c, 16d, 17c, 17d extending in the longitudinal direction Y. The inner and outer end edges 16a, 16b, 17a, 17b and the side edges 16c, 16d, 17c, 17d of the front and rear waist panels correspond to the inner and outer end edges and the side edges of the front and rear waist regions 13, 14, respectively.
　前ウエストパネル１６の両側縁部（前ウエスト域１３の両側縁部）のそれぞれと後ウエストパネル１７の両側縁部（後ウエスト域１４の両側縁部）とは、互いに重ね合わされて、縦方向Ｙへ断続的に延びるサイドシーム２３によって連結され、ウエスト開口２４及び一対のレッグ開口２５とが画成される。サイドシーム２３は、公知の接合手段、例えば、熱溶着加工、超音波溶着加工等の各種の熱溶着手段によってなされる。 The respective side edges of the front waist panel 16 (the side edges of the front waist region 13) and the side edges of the rear waist panel 17 (the side edges of the rear waist region 14) are overlapped with each other, Intersectingly extending side seams 23 are connected to define a waist opening 24 and a pair of leg openings 25. The side seams 23 are made by known bonding means, for example, various kinds of heat welding means such as heat welding and ultrasonic welding.
　図２を参照すると、前後ウエスト域１３，１４は、それぞれ、説明の便宜上、レッグ開口２５側に位置する内端部１３Ａ，１４Ａと、ウエスト開口２４側に位置する外端部１３Ｂ，１４Ｂと、内端部１３Ａ，１４Ａと外端部１３Ｂ，１４Ｂとの間に位置する中央部１３Ｃ，１４Ｃとを有する。内外端部１３Ａ，１３Ｂ，１４Ａ，１４Ｂは、前後ウエスト域１３，１４の縦方向Ｙの寸法（側縁部の長さ寸法）Ｌ１の約１０～３０％の大きさであって、中央部１３Ｃ，１４Ｃは、前後ウエスト域１３，１４の縦方向Ｙの寸法の約４０～８０％の大きさを有する。 Referring to FIG. 2, the front and rear waist regions 13 and 14 respectively have inner ends 13 A and 14 A located on the leg opening 25 side and outer ends 13 B and 14 B located on the waist opening 24 side for convenience of explanation. A central portion 13C, 14C is located between the inner end 13A, 14A and the outer end 13B, 14B. The inner and outer end portions 13A, 13B, 14A, 14B have a size of about 10 to 30% of the dimension (length dimension of the side edge portion) L1 of the longitudinal direction Y of the front and rear waist regions 13, 14 , 14 C have a size of about 40 to 80% of the dimension of the longitudinal direction Y of the front and rear waist regions 13, 14.
　前後ウエスト域１３，１４（前後ウエストパネル１６，１７）は、それぞれ、非肌対向面側に位置する非伸縮性の外層シート３０と、肌対向面側に位置する弾性層３１とを含む。弾性層３１は、非肌対向面側に位置する中間シート３２と、肌対向面側に位置する通気性の内層シート３３と、中間シート３２と内層シート３３との間に介在された、複数条の糸状、ストランド状又はストリング状の前後ウエスト弾性体３５，３６とを有する。前後ウエスト弾性体３５，３６は、それぞれ、前後ウエスト域１３，１４を形成する中間シート３２と内層シート３３との間に介在されて、横方向Ｘへ伸長された状態で収縮可能に取り付けられている。前後ウエスト域１３，１４は、それぞれ、前後ウエスト弾性体３５，３６が配置されることによって横方向Ｘへ伸縮可能な前後弾性域を有する。 The front and rear waist regions 13 and 14 (front and rear waist panels 16 and 17) each include a non-stretchable outer layer sheet 30 located on the non-skin facing surface side and an elastic layer 31 located on the skin facing surface side. The elastic layer 31 is interposed between the intermediate sheet 32 located on the non-skin facing surface side, the breathable inner layer sheet 33 located on the skin facing surface side, and the intermediate sheet 32 and the inner layer sheet 33. Yarn-like, strand-like or string-like front and rear waist elastics 35, 36; The front and rear waist elastics 35 and 36 are interposed between the intermediate sheet 32 and the inner layer sheet 33 forming the front and rear waist regions 13 and 14, respectively, and are attached retractably in a state of being stretched in the lateral direction X There is. The front and rear waist regions 13 and 14 have front and rear elastic regions that can be expanded and contracted in the lateral direction X by arranging the front and rear waist elastic bodies 35 and 36, respectively.
　本実施形態においては、中間シート３２と内層シート３３とは、それらの間に介在された前後ウエスト弾性体３５，３６の全周に塗布された例えばホットメルト接着剤によって互いに接合されている。両シート３２，３３は、一方の内面全体にドット状やスパイラル状等の各種公知のパターンで塗布されたホットメルト接着剤で互いに接合されていてもよいが、このように、前後ウエスト弾性体３５，３６の全周に塗布されたホットメルト接着剤によってのみ接合されることによって、弾性層３１が比較的に柔軟になって、着用者の肌当たりが良好となる。 In the present embodiment, the intermediate sheet 32 and the inner layer sheet 33 are bonded to each other by, for example, a hot melt adhesive applied to the entire circumference of the front and rear waist elastics 35, 36 interposed therebetween. The two sheets 32 and 33 may be bonded to each other by hot melt adhesive applied in various known patterns such as dot shape and spiral shape on the entire inner surface of one side, but in this way, the front and rear waist elastics 35 By bonding only by the hot melt adhesive applied to the entire circumference of the elastic layer 36, the elastic layer 31 becomes relatively soft and the contact with the skin of the wearer becomes good.
　外層シート３０と中間シート３２とは、非弾性伸縮性であって、熱可塑性合成繊維を含む各種公知の繊維不織布、又はそれとプラスチックフィルムとのラミネートシートから形成することができる。また、内層シート３３は、非弾性伸縮性であって、かつ、通気性を有する各種公知の繊維不織布から形成することができる。熱可塑性合成繊維としては、例えば、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレート等の合成繊維や合成繊維の混合物、又はこれら合成樹脂を２種類以上用いた複合繊維等を用いることができる。また、繊維不織布としては、スパンボンド繊維不織布、ＳＭＳ繊維不織布、エアスルー繊維不織布等の各種公知の繊維不織布を用いることができる。なお、後記のとおり、外層シート３０と中間シート３２とは、複数の開口６１，６２を有する多孔性シートであって、通気性を有する。 The outer layer sheet 30 and the intermediate sheet 32 are non-elastic and stretchable, and can be formed from various known fibrous non-woven fabrics containing thermoplastic synthetic fibers, or laminate sheets thereof and plastic films. In addition, the inner layer sheet 33 can be formed from various well-known fibrous nonwoven fabrics which are inelastic stretchable and breathable. As a thermoplastic synthetic fiber, for example, a synthetic fiber such as polyethylene, polypropylene, polyethylene terephthalate or a mixture of synthetic fibers, or a composite fiber using two or more of these synthetic resins can be used. Moreover, as a fiber nonwoven fabric, various well-known fiber nonwoven fabrics, such as a spun bond fiber nonwoven fabric, a SMS fiber nonwoven fabric, an air through fiber nonwoven fabric, can be used. As described later, the outer layer sheet 30 and the intermediate sheet 32 are porous sheets having a plurality of openings 61 and 62, and have air permeability.
　前後ウエスト弾性体３５，３６は、例えば、太さが約３００～５００ｄｔｅｘ、１．５～３．５倍に伸長されて固定された糸状、ストリング状又はストランド状の弾性材料を用いることができる。また、前後ウエスト弾性体３５，３６の太さや伸長倍率は、それらが配置された弾性域の所定の弾性力に応じて適宜変更することができる。なお、図示していないが、前後ウエスト域１３，１４の中央部であって吸収性パネル１２内に位置する吸収性コアの存在域に、前後ウエスト弾性体３５，３６の収縮力が実質的に発現されていない又は両弾性体３５，３６が存在していない、非弾性域を配置してもよい。前後ウエスト域１３，１４の吸収性コアの存在域に非弾性域を配置することによって、吸収性コアに両弾性体３５，３６の収縮力が直接作用してその吸収性が低減するような皺が形成されるのを抑制することができる。 As the front and rear waist elastics 35, 36, for example, a thread-like, string-like or strand-like elastic material which is fixed by being stretched to a thickness of about 300 to 500 dtex and 1.5 to 3.5 times can be used. Further, the thickness and expansion ratio of the front and rear waist elastics 35 and 36 can be appropriately changed in accordance with the predetermined elastic force of the elastic region in which they are disposed. Although not shown, the contraction force of the front and rear waist elastics 35, 36 is substantially in the center of the front and rear waist regions 13, 14 and in the region where the absorbent core is located in the absorbent panel 12. Inelastic zones may be arranged which are not expressed or both elastic bodies 35, 36 are not present. By arranging the inelastic area in the area where the absorbent core of the front and rear waist areas 13 and 14 is present, it is possible that the contractile force of both elastic bodies 35 and 36 acts directly on the absorbent core to reduce its absorbability. Can be suppressed.
　外層シート３０と中間シート３２とは、縦方向Ｙへ連続的に延び、かつ、横方向Ｘにおいて互いに離間する複数条の接合ライン（接合部）４１，４２で互いに接合されている。接合ライン４１，４２は、前後ウエスト域１３，１４の外端部１３Ｂ，１４Ｂと中央部１３Ｃ，１４Ｃにおいて外層シート３０と弾性層３１とを互いに接合する第１接合ライン４１と、内端部１３Ａ，１４Ａにおいて外層シート３０と弾性層３１とを接合する第２接合ライン４２とを有する。第１及び第２接合ライン４１，４２は、熱溶着加工、超音波加工等の熱溶着手段によって外層シート３０と中間シート３２とを接合する溶着ラインであって、図示例では、縦方向Ｙへ連続して直状に延びるストライプ状であるが、複数のドット状の溶着部を縦方向Ｙへ断続的に設けてあってもよい。なお、以降の図３～図６に基づく説明においては、主として前ウエスト域１３（前ウエストパネル１６）の構成について説明するが、後ウエスト域１４（後ウエストパネル１７）についても同様の構成を有するので、その説明については省略する。 The outer layer sheet 30 and the intermediate sheet 32 are joined to each other by a plurality of joining lines (joining parts) 41 and 42 which extend continuously in the longitudinal direction Y and are separated from each other in the transverse direction X. The bonding lines 41 and 42 are a first bonding line 41 for bonding the outer layer sheet 30 and the elastic layer 31 to each other at the outer end portions 13B and 14B and the central portions 13C and 14C of the front and rear waist regions 13 and 14, and the inner end portion 13A. , 14A, and a second bonding line 42 for bonding the outer layer sheet 30 and the elastic layer 31. The first and second bonding lines 41 and 42 are welding lines for bonding the outer layer sheet 30 and the intermediate sheet 32 by thermal welding means such as thermal welding and ultrasonic processing, and in the illustrated example, in the longitudinal direction Y Although it is stripe form extended continuously straightly, a plurality of dot-like welding parts may be intermittently provided in the longitudinal direction Y. In the following description based on FIGS. 3 to 6, the configuration of the front waist region 13 (front waist panel 16) will be mainly described, but the rear waist region 14 (rear waist panel 17) also has the same configuration. Therefore, the explanation is omitted.
　図３及び図４（ａ），（ｂ）を参照すると、第１接合ライン４１は、第２接合ライン４２よりも長さ寸法が大きく、かつ、幅広であって、第１接合ライン４１の長さ寸法（縦方向Ｙの寸法）Ｌ２は約１２０～２２０ｍｍ、幅寸法（横方向Ｘの寸法）Ｗ１は約０．５～２．０ｍｍである。また、第２接合ライン４２の長さ寸法Ｌ３は約３０～８０ｍｍ、幅寸法は０．３～１．０ｍｍである。また、横方向Ｘにおいて互いに隣り合う第１接合ライン４１間の離間寸法（ピッチ）Ｒ１は、約５．０～２０．０ｍｍ、横方向Ｘにおいて互いに隣り合う第２接合ライン４２間の離間寸法（ピッチ）Ｒ２は約３．０～１０．０ｍｍである。ここで、「第１及び第２接合ライン４１，４２の離間寸法Ｒ１，Ｒ２」は、横方向Ｘにおいて互いに隣り合う接合ラインの互いに対向する側縁間の離間寸法を意味する。 Referring to FIGS. 3 and 4 (a) and 4 (b), the first bonding line 41 is longer and wider than the second bonding line 42, and the length of the first bonding line 41 is longer. The length dimension (dimension in the longitudinal direction Y) L2 is about 120 to 220 mm, and the width dimension (dimension in the lateral direction X) W1 is about 0.5 to 2.0 mm. Further, the length dimension L3 of the second bonding line 42 is approximately 30 to 80 mm, and the width dimension is 0.3 to 1.0 mm. Further, the separation dimension (pitch) R1 between the first bonding lines 41 adjacent to each other in the lateral direction X is about 5.0 to 20.0 mm, and the separation dimension between the second bonding lines 42 adjacent to each other in the lateral direction X The pitch R2 is about 3.0 to 10.0 mm. Here, “the separation dimension R1, R2 of the first and second bonding lines 41 and 42” means a separation dimension between mutually opposing side edges of bonding lines adjacent to each other in the lateral direction X.
　なお、図示していないが、前後ウエスト域１３，１４の中央部１３Ｃ，１４Ｃにおいて、外層シート３０と中間シート３２との間、または、中間シート３２と内層シート３３との間において、外部から視認可能なグラフィックを有するグラフィックシートを配置してもよい。また、外層シート３０の縦方向Ｙの寸法を内層シート３３及び中間シート３２のそれよりも大きく形成し、両シート３２，３３の外端縁から縦方向Ｙの外側へ延出する部分を内側（肌対向面側）へ折り曲げて、内層シート３３の肌対向面側に固定してもよい。また、後ウエストパネル１７が前ウエストパネル１６よりも外形寸法の大きな台形状であって、サイドシーム２３からさらに縦方向Ｙの内側へ延びる臀部カバー部が形成されていてもよい。 Although not shown, in the central portions 13C and 14C of the front and rear waist regions 13 and 14, the outer layer sheet 30 and the intermediate sheet 32 or the intermediate sheet 32 and the inner layer sheet 33 are viewed from the outside A graphic sheet having possible graphics may be arranged. Further, the dimension of the outer layer sheet 30 in the longitudinal direction Y is formed larger than that of the inner layer sheet 33 and the intermediate sheet 32, and a portion extending outward from the outer edge of both sheets 32, 33 in the longitudinal direction Y is You may bend | fold to the skin opposing surface side, and you may fix to the skin opposing surface side of the inner-layer sheet | seat 33. FIG. In addition, the rear waist panel 17 may have a trapezoidal shape with a larger outside dimension than the front waist panel 16, and a buttocks cover portion may be formed extending further inward in the longitudinal direction Y from the side seams 23.
　図１及び図４（ａ），（ｂ）を参照すると、外層シート３０は、第１接合ライン４１間に位置する畝部（非接合部）４５を有する。外層シート３０は、横方向Ｘへ伸縮する弾性層３１に対して、縦方向Ｙへ延び、かつ、横方向Ｘにおいて離間する複数条の第１接合ライン４１において接合され、第１接合ライン４１間において弾性層３１の横方向Ｘの寸法が外層シート３０の横方向Ｘの寸法よりも小さくなることによって、第１接合ライン４１間に位置する畝部４５が厚さ方向Ｚの外側へ凸曲した形状を有する。外層シート３０では、横方向Ｘにおいて畝部４５と第１接合ライン４１の位置する溝部とが交互に位置し、畝部４５と溝部とが横方向Ｘへ連なることによって横方向へ起伏を繰り返した形状を有する。畝部４５は、前後ウエスト弾性体３５，３６の位置する前後ウエスト域１３，１４の外端部１３Ｂ，１４Ｂと中央部１３Ｃ，１４Ｃとに形成される。外層シート３０は、第１接合ライン４１によって横方向Ｘにおいて比較的に小さく区分されることから、畝部４５では複数の凹凸（複数のギャザー）が形成されず、全体として連続した凸曲状をなす１つの凸曲部が形成される。 Referring to FIG. 1 and FIGS. 4A and 4B, the outer layer sheet 30 has a ridge portion (non-bonding portion) 45 located between the first bonding lines 41. The outer layer sheet 30 is joined to a plurality of first joining lines 41 which extend in the longitudinal direction Y and are separated in the transverse direction X with respect to the elastic layer 31 which expands and contracts in the transverse direction X. When the dimension of the elastic layer 31 in the lateral direction X is smaller than the dimension of the outer layer sheet 30 in the lateral direction X, the ridge portion 45 located between the first bonding lines 41 is convexly curved outward in the thickness direction Z It has a shape. In the outer layer sheet 30, the ridges 45 and the groove portions at which the first bonding lines 41 are positioned are alternately located in the lateral direction X, and the ridge portions 45 and the groove portions are repeated in the lateral direction X to repeat the unevenness in the lateral direction It has a shape. The collar portion 45 is formed at the outer end portions 13B and 14B and the central portions 13C and 14C of the front and rear waist regions 13 and 14 where the front and rear waist elastics 35 and 36 are located. Since the outer layer sheet 30 is divided relatively small in the lateral direction X by the first bonding line 41, a plurality of asperities (a plurality of gathers) are not formed in the ridge portion 45, and the convex curved shape is continuous as a whole. One convex curved portion is formed.
　一方、前後ウエスト域１３，１４の内端部１３Ａ，１４Ａには、第２接合ライン４２間において弾性層３１の収縮によって、縦方向へ延びる厚さ方向Ｚの外側へ凸曲した畝部が形成される。第２接合ライン４２間の離間寸法Ｒ２は第１接合ライン４１間の離間寸法Ｒ１よりも小さいことから、第２接合ライン間４２に位置する畝部は、第１接合ライン４１間に位置する畝部４５よりも高さ（厚さ方向Ｚの寸法）が小さくなる。本実施形態においては、中間シート３２は、前後ウエスト域１３，１４の全域に配置されているが、外端部１３Ｂ，１４Ｂ及び中央部１３Ｃ，１４Ｃにのみ配置され、内端部１３Ａ，１４Ａには配置されていなくてもよい。 On the other hand, at the inner end portions 13A and 14A of the front and rear waist regions 13 and 14, by contraction of the elastic layer 31 between the second bonding lines 42, ridges convex outward in the thickness direction Z extending in the longitudinal direction are formed Be done. Since the separation dimension R2 between the second bonding lines 42 is smaller than the separation dimension R1 between the first bonding lines 41, the ridge portion located between the second bonding lines 42 is a ridge located between the first bonding lines 41. The height (dimension in the thickness direction Z) is smaller than that of the portion 45. In the present embodiment, the intermediate sheet 32 is disposed in the entire area of the front and rear waist regions 13 and 14, but is disposed only at the outer end portions 13B and 14B and the central portions 13C and 14C, and at the inner end portions 13A and 14A. May not be arranged.
　中間シート３２と内層シート３３には、前後ウエスト弾性体３５，３６の収縮によって横方向Ｘに起伏を繰り返す複数の比較的に小さなギャザー４６，４７が形成される。外層シート３０の畝部４５と中間シート３２とは、厚さ方向Ｚにおいて互いに離間しており、それらの間には縦方向Ｙへ延びる管状又は筒状の通気路５０が形成される。 The intermediate sheet 32 and the inner layer sheet 33 are formed with a plurality of relatively small gathers 46 and 47 which repeat undulation in the lateral direction X by contraction of the front and rear waist elastics 35 and 36. The collar portion 45 of the outer layer sheet 30 and the intermediate sheet 32 are separated from each other in the thickness direction Z, and a tubular or cylindrical air passage 50 extending in the longitudinal direction Y is formed therebetween.
　通気路５０が形成される限りにおいては、弾性層３１は、前後ウエスト弾性体３５，３６と内層シート３３のみから構成されて中間シート３２を有していなくてもよい。ただし、前後ウエスト弾性体３５，３６が外層シート３０と中間シート３２との複数のシートによって被覆されていることによって、外部からその外形が明瞭に把握されることはない。また、外層シート３０の畝部４５が弾性層３１から離間して厚さ方向Ｚの外側へ凸曲することから、外部からおむつ１０に向かう光がおむつ１０の外面において散乱して、前後ウエスト弾性体３５，３６の視認性がより低下する。それによって、おむつ１０は、前後ウエスト弾性体３５，３６が明瞭に視認される場合に比して下着のような外観を有し、着用者に対して柔軟かつ肌触りの良好な印象を与えることができる。 As long as the air passage 50 is formed, the elastic layer 31 may be configured only with the front and rear waist elastics 35 and 36 and the inner layer sheet 33 and may not have the intermediate sheet 32. However, since the front and rear waist elastics 35 and 36 are covered with the plurality of sheets of the outer layer sheet 30 and the intermediate sheet 32, the outer shape is not clearly grasped from the outside. In addition, since the ridges 45 of the outer layer sheet 30 are separated from the elastic layer 31 and convexly curved outward in the thickness direction Z, light traveling toward the diaper 10 from the outside is scattered on the outer surface of the diaper 10 and the front and rear waist elasticity The visibility of the body 35, 36 is further reduced. Thereby, the diaper 10 has an underwear-like appearance as compared to when the front and rear waist elastics 35, 36 are clearly viewed, and gives the wearer a good impression of softness and softness. it can.
　外層シート３０の通気路５０において安定的に空気の流動がなされるように、畝部４５は、変形や蛇行せずに縦方向Ｙへほぼ直状に延びていることが好ましい。このように、畝部４５が安定した形状を有するためには、外層シート３０の質量（場合によっては、密度や比容積）、第１接合ライン４１の幅寸法Ｗ１、第１接合ライン４１間の横方向Ｘの離間寸法Ｒ１（畝部４５の横方向Ｘの寸法）、弾性層３１の収縮量等を適宜調整することが好ましい。また、畝部４５では、第１接合ライン４１間において凸曲した一つのギャザーが形成されるのみであるから、複数のギャザーが形成される場合に比して、通気路５０の形状が安定して空気が流動しやすくなる。また、畝部４５に１つのギャザーのみが形成されることによって、おむつ１０の外面に規則的なプリーツ状の立体模様が形成されるので、外観の意匠性を向上させることができる。 It is preferable that the ridge portion 45 extend substantially straight in the longitudinal direction Y without deformation or meandering so that air flows stably in the air passage 50 of the outer layer sheet 30. As described above, in order for the ridge portion 45 to have a stable shape, the mass (in some cases, the density or specific volume) of the outer layer sheet 30, the width dimension W1 of the first bonding line 41, and the first bonding line 41 It is preferable to appropriately adjust the separation dimension R1 in the lateral direction X (the dimension in the lateral direction X of the ridge 45), the contraction amount of the elastic layer 31, and the like. In addition, in the flange portion 45, only one convexly curved gather is formed between the first bonding lines 41. Therefore, the shape of the air passage 50 is stable as compared with the case where a plurality of gathers are formed. Air can flow easily. Moreover, since only a single gather is formed in the collar portion 45, a regular pleated three-dimensional pattern is formed on the outer surface of the diaper 10, so the designability of the appearance can be improved.
　再び、図２及び図３を参照すると、吸収性パネル１２は、前ウエスト域１３に位置する前端部１２Ａと、後ウエスト域１４に位置する後端部１２Ｂと、前後端部１２Ａ，１２Ｂ間において縦方向Ｙへ延び、クロッチ域１５を画成する中間部１２Ｃとを有する。また、吸収性パネル１２は、肌対向面側に位置し、透液性を有する繊維不織布製の内面シート５１と、曲状の両側縁を有する吸液性の吸収性コア５２と、少なくとも吸収性コア５２の底面全体を覆う不透液性の防漏シート５３と、吸収性パネル１２の非肌対向面全体を形成する不透液性の外面シート５４とを有する。吸収性コア５２は、フラッフ木材パルプと超吸収性ポリマー粒子等との混合物から形成された芯材と、芯材全体を包被するティッシュペーパ等の液吸収拡散性のコアカバーシート（図示せず）とを含む。また、吸収性パネル１２は、両側縁部において縦方向Ｙへ延びる複数条の糸状、ストランド状又はストリング状のレッグ弾性体５５が配置されている。レッグ弾性体５５が配置されることによって、クロッチ域１５の両側縁部はレッグ弾性域が形成され、前後ウエスト域１３，１４の前後弾性域とレッグ弾性域とによって、レッグ開口縁部には、着用状態において着用者の大腿部を囲むように環状に延びる仮想の弾性帯が形成される。なお、図示していないが、排泄物の横漏れを防止するために、着用状態において着用者の身体へ向かって起立する一対の防漏壁を吸収性パネル１２の両側部に配置してもよい。 Referring again to FIGS. 2 and 3, the absorbent panel 12 has a front end 12A located in the front waist area 13 and a rear end 12B located in the rear waist area 14 between the front and rear ends 12A, 12B. And an intermediate portion 12C extending in the longitudinal direction Y and defining the crotch region 15. In addition, the absorbent panel 12 is located on the skin-facing surface side, and has an inner sheet 51 made of a liquid non-woven fibrous non-woven fabric, an absorbent absorbent core 52 having curved side edges, and at least an absorbent core. A liquid-impervious leakproof sheet 53 covering the entire bottom surface of the core 52 and a liquid-impervious outer sheet 54 forming the entire non-skin facing surface of the absorbent panel 12 are provided. The absorbent core 52 is a core material formed of a mixture of fluff wood pulp and superabsorbent polymer particles and the like, and a liquid-absorbing diffusive core cover sheet (not shown) such as tissue paper which covers the entire core material. And). Further, in the absorbent panel 12, a plurality of thread-like, strand-like or string-like leg elastic bodies 55 extending in the longitudinal direction Y at both side edges are disposed. By arranging the leg elastics 55, the side edges of the crotch area 15 are formed with leg elastic areas, and the front and rear elastic areas of the front and rear waist areas 13 and 14 and the leg elastic areas A virtual elastic band is formed that extends annularly around the wearer's thighs in the worn state. Although not shown, in order to prevent the side leakage of the excrement, a pair of leakproof walls that stand up toward the wearer's body in the wearing state may be arranged on both sides of the absorbent panel 12 .
　図４（ａ），（ｂ）及び図５を参照すると、外層シート３０には、それを貫通する複数の第１開口（外側開口）６１が位置し、中間シート３２にはそれを貫通する複数の第２開口（内側開口）６２が位置している。一方、内層シート３３には、両シート３０，３２と異なり、複数の開口が形成されていない。おむつ１０の通気性を良くして内部の蒸れを防止するために、内外層シート３０，３３及び中間シート３２のすべてに複数の開口を形成することも考えられるが、かかる場合には、おむつ１０内部の排泄物が内層シート３３の開口から外部に漏れ出るおそれがある。また、各シートの開口が厚さ方向Ｚにおいて重なる部分では、他の部分に比してシート強度が大きく低下して、着用時においておむつ１０を引き上げた際に、該シート強度の低い部分を起点としてシート破れが生じるおそれもある。 Referring to FIGS. 4A, 4B and 5, the outer layer sheet 30 has a plurality of first openings (outside openings) 61 passing therethrough, and the intermediate sheet 32 has a plurality of openings passing therethrough. The second opening (inner opening) 62 is located. On the other hand, unlike the two sheets 30 and 32, the inner layer sheet 33 does not have a plurality of openings. It is also conceivable to form a plurality of openings in all of the inner and outer layer sheets 30, 33 and the intermediate sheet 32 in order to improve the air permeability of the diaper 10 to prevent internal stuffiness. The excrement inside may leak from the opening of the inner layer sheet 33 to the outside. In addition, in the portion where the openings of the sheets overlap in the thickness direction Z, the sheet strength is significantly reduced compared to the other portions, and when the diaper 10 is pulled up at the time of wearing, the portion with low sheet strength There is also a possibility that sheet breakage may occur.
　本実施形態に係る着用物品では、内層シート３３に複数の開口が形成されていないことから、内部の排泄物が外部に漏れ出ることはなく、また、シート強度が局所的に大きく低下することはない。また、内層シート３３が透湿性を有することから、複数の開口が形成されていなくてもおむつ１０内の空気（内気）を外部に透過させることができ、おむつ１０内の蒸れを防止することができる。おむつの内部と外部との空気の流れについて説明すると、まず、内層シート３３を透過した内気は第２開口６２を通過して通気路５０内へ流動する。通気路５０内に流動した内気は、第１開口６１を通過しておむつ１０の外部に放出される。一方、おむつ１０の外部の空気（外気）は、第１開口６１から通気路５０内へ流動して第２開口６２を通過するとともに内層シート３３を透過して、おむつ１０の内部に入ることができる。このように、排泄物が外部に漏れたりシート強度を部分的に大きく低下させることなく、おむつ１０の通気性を向上させ、内部の蒸れを防止することができる。 In the wearing article according to the present embodiment, since the plurality of openings are not formed in the inner layer sheet 33, the excrement inside does not leak to the outside, and the sheet strength is locally greatly reduced. Absent. In addition, since the inner layer sheet 33 has moisture permeability, air (inner air) in the diaper 10 can be transmitted to the outside even if a plurality of openings are not formed, and the stuffiness in the diaper 10 can be prevented. it can. First, the inside air that has passed through the inner layer sheet 33 flows through the second opening 62 and flows into the air passage 50. The internal air that has flowed into the air passage 50 passes through the first opening 61 and is released to the outside of the diaper 10. On the other hand, air (external air) outside the diaper 10 flows from the first opening 61 into the air passage 50, passes through the second opening 62, passes through the inner layer sheet 33, and enters the inside of the diaper 10. it can. As described above, the breathability of the diaper 10 can be improved and internal stuffiness can be prevented, without excrement leaking to the outside or the sheet strength being partially greatly reduced.
　また、外層シート３０と中間シート３２とは、縦方向Ｙへ延びる複数条の第１及び第２接合ライン４１，４２で互いに接合されており、ウエスト開口縁に位置する通気路５０の外端開口から空気の進入、排出が可能であって、外端開口が封止されている場合に比して、おむつ１０の通気性に優れる。ただし、第１及び第２開口６１，６２においておむつ１０の内部が蒸れないように空気の流入、放出をコントロールできる限りにおいて、外端開口は封止されていてもよい。 The outer layer sheet 30 and the intermediate sheet 32 are joined to each other by a plurality of first and second joining lines 41 and 42 extending in the longitudinal direction Y, and the outer end opening of the air passage 50 located at the waist opening edge Air can enter and be discharged, and the breathability of the diaper 10 is excellent as compared to the case where the outer end opening is sealed. However, the outer end opening may be sealed as long as the inflow and discharge of air can be controlled so that the inside of the diaper 10 is not stuffed in the first and second openings 61 and 62.
　おむつ１０が所定の通気性を有する限りにおいて、第１及び第２開口６１，６２のうちの少なくとも一方のみが形成されていてもよい。かかる場合には、複数の開口を有しないシート、例えば、外層シート３０が複数の第１開口６１を有するのに対し、中間シート３２に第２開口６２が配置されていない場合には、中間シート３２が少なくとも通気性を有することが好ましい。一方、中間シート３２が複数の第２開口６２を有し、外層シート３０に第１開口６１が配置されていない場合は、外層シート３０が通気性を有することが好ましい。 As long as the diaper 10 has a predetermined air permeability, only at least one of the first and second openings 61 and 62 may be formed. In such a case, a sheet not having a plurality of openings, for example, when the outer layer sheet 30 has a plurality of first openings 61 but the second opening 62 is not disposed in the intermediate sheet 32, the intermediate sheet It is preferable that 32 be at least breathable. On the other hand, when the intermediate sheet 32 has a plurality of second openings 62 and the first opening 61 is not disposed in the outer layer sheet 30, it is preferable that the outer layer sheet 30 has air permeability.
　また、おむつ１０の製造工程において、第１及び第２開口６１，６２は、繊維不織布製の外層シート３０と中間シート３２とを積層した状態でそれらを貫通する貫通孔によって形成されるものではなく、両シート３０，３２のそれぞれに別々にくり抜き加工や熱エンボス加工等の穿設加工を施すことによって形成されるものである。したがって、それらの開口縁は溶着されていたり、ばりが生じたりして直接肌に触れると刺激を与えるおそれがあるが、内層シート３３にはこのような開口が形成されていないので、肌が刺激されることはない。また、このように、予め複数の開口が形成された繊維不織布を積層するので、前後ウエスト弾性体３５，３６を内層シート３３と中間シート３２との間に配置した後に穿設加工が施されることはなく、穿設加工するときに前後ウエスト弾性体３５，３６が切断されるおそれはない。特に、第１接合ライン４１を接着剤によって形成する場合には、接着剤が開口から漏れ出ないように、接着剤の塗布する部分と開口を穿設する部分との位置を調整する必要があり、高速の製造ラインにおいて大きな課題であるところ、第１接合ラインを溶着加工によるシールラインとし、かつ、外層シート３０と中間シート３２とに予め開口を形成することによって、かかる製造上の問題を解決することができる。 Further, in the manufacturing process of the diaper 10, the first and second openings 61, 62 are not formed by the through holes penetrating the outer layer sheet 30 made of the fiber non-woven fabric and the intermediate sheet 32 in the laminated state. The first and second sheets 30 and 32 are formed separately by punching and heat embossing. Therefore, those opening edges may be welded or burrs may cause irritation if they touch the skin directly, but such an opening is not formed in the inner layer sheet 33, so the skin is stimulated. It will not be done. In addition, since the fiber non-woven fabric in which a plurality of openings are formed in advance is laminated in this way, after the front and rear waist elastics 35, 36 are disposed between the inner layer sheet 33 and the intermediate sheet 32, perforating processing is performed There is no risk that the front and rear waist elastics 35, 36 will be cut when drilling. In particular, when the first bonding line 41 is formed by an adhesive, it is necessary to adjust the positions of the portion to which the adhesive is applied and the portion to which the opening is to be formed so that the adhesive does not leak from the opening. Solves such manufacturing problems by making the first bonding line a seal line by welding and forming an opening in the outer layer sheet 30 and the intermediate sheet 32 in advance, which is a big problem in high-speed manufacturing lines can do.
　また、図６を参照すると、第１開口６１と第２開口６２とは、おむつ１０の平面視において互いに重なっていない。両開口６１，６２が平面視において互いに重なっている場合には、重なる部分においてシート強度が低下してシート破れの原因となるおそれがあるが、両開口６１，６２が平面視において互いに重なっていないことから、内層シート３３のみから形成されたシート強度の低い部分が形成されることはなく、着用操作中にシート破れが生じるおそれはない。ただし、外層シート３０と中間シート３２とのそれぞれに異なるパターンで配置されるものであって、それらを積層するときに、平面視において一部が互いに重なることもあることも考えられる。したがって、「第１及び第２開口６１，６２が、おむつ１０の平面視において互いに重なっていない。」とは、外層シート３０と中間シート３２とを貫通する開口によって第１及び第２開口６１，６２とを同時に形成する場合（すべての第１開口６１と第２開口６２とが平面視において重なる場合）を除き、偶発的に第１及び第２開口６１，６２の一部が平面視において互いに重なるものを含むものであって、例えば、第１開口６１のうちの約５％以下の開口が第２開口６２と平面視において互いに重なる場合も含む。かかる場合には、内層シート３３のみからなる部分が僅かであるので、着用中に該部分からシート破れが生じるおそれはない。 Further, referring to FIG. 6, the first opening 61 and the second opening 62 do not overlap with each other in a plan view of the diaper 10. If the two openings 61 and 62 overlap each other in plan view, the sheet strength may be reduced in the overlapping portion to cause sheet breakage, but the two openings 61 and 62 do not overlap each other in plan view Therefore, the low sheet strength portion formed only from the inner layer sheet 33 is not formed, and there is no possibility that the sheet breakage may occur during the wearing operation. However, it is also possible to arrange the outer layer sheet 30 and the intermediate sheet 32 in different patterns, and when laminating them, parts may overlap each other in plan view. Therefore, “the first and second openings 61, 62 do not overlap each other in a plan view of the diaper 10” means the first and second openings 61, 61 by the openings penetrating the outer layer sheet 30 and the intermediate sheet 32. In the case where the first and second openings 61 and 62 are simultaneously formed (when all the first openings 61 and the second openings 62 overlap in plan view), part of the first and This includes overlapping, and for example, the case where about 5% or less of the first openings 61 overlap with the second opening 62 in plan view. In such a case, since there is only a small portion consisting only of the inner layer sheet 33, there is no risk of sheet breakage from the portion during wearing.
　図５及び図６を参照すると、第１及び第２開口６１，６２の配置パターンは、適宜選択しうるものであるが、おむつ１０が所要の通気性を有するためには、畝部４５の存在域において縦方向Ｙへ所定間隔を置いて配置されていることが好ましい。本実施形態では、第１及び第２開口６１，６２の直径は、約０．５～３．０ｍｍであって、両開口６１，６２における縦方向Ｙの離間寸法Ｒ３，Ｒ４は約５～１５ｍｍ、横方向Ｘの離間寸法Ｒ５，Ｒ６は、約５～１５ｍｍであることが好ましい。また、第１及び第２開口６１，６２の開口率、すなわち、外層シート３０の全面積に対する第１開口６１の総面積の比率と中間シート３２の全面積に対する第２開口６２の総面積の比率は、約２％以上であることが好ましい。また、内層シート３３の透湿度は、１００ｍ３／ｍ２／ｓｅｃ以上であることが好ましい。 With reference to FIGS. 5 and 6, the arrangement pattern of the first and second openings 61 and 62 can be selected as appropriate, but the presence of the collar portion 45 in order for the diaper 10 to have the required air permeability. In the area, it is preferable to arrange at predetermined intervals in the longitudinal direction Y. In the present embodiment, the diameter of the first and second openings 61 and 62 is about 0.5 to 3.0 mm, and the separation dimension R3 and R4 in the longitudinal direction Y at the both openings 61 and 62 is about 5 to 15 mm. The separation dimensions R5 and R6 in the lateral direction X are preferably about 5 to 15 mm. Also, the aperture ratio of the first and second openings 61 and 62, ie, the ratio of the total area of the first opening 61 to the total area of the outer layer sheet 30, and the ratio of the total area of the second opening 62 to the total area of the intermediate sheet 32. Is preferably about 2% or more. The moisture permeability of the inner layer sheet 33 is preferably 100 m 3 / m 2 / sec or more.
＜透湿性の測定方法＞
　内層シート３３の透湿度は、公知の通気度試験機、例えば、カトーテック株式会社のＫＥＳ－Ｆ８－ＡＰ１を使用し、ＪＩＳ　Ｌ１０９６Ａのフラジール法に準拠した方法によって測定した。測定は、試験機の所定位置に内層シート３３の一部を所定の大きさに切り出したサンプルをセットし、該サンプルに一定流量Ｖ（単位：ｍ3／ｍ2・ｓ）の空気を通過させたときの圧力差ΔＱ（単位：ｋＰａ）を測定した。かかる測定値ΔＱを流量Ｖで除し、通気抵抗Ｒ（単位：ｋＰａ・ｓ／ｍ）を求め、透湿度Ｐ（単位：ｍ３／ｍ２／ｓｅｃ）をＰ＝Ｋ（定数）／Ｒの式によって算出し、５回の測定結果の平均値を内層シート３３の透湿度とした。なお、第１及び第２開口６１，６２は、図示したような円形のほかに、楕円形、長方形や正方形等の矩形、三角形、星形等の各種公知の形状であってもよい。 <Measurement method of moisture permeability>
The moisture permeability of the inner layer sheet 33 was measured using a known air permeability tester, for example, KES-F8-AP1 manufactured by Kato Tech Co., Ltd., according to the method according to the JIS L 1096A Frasil method. In measurement, a sample obtained by cutting out a portion of the inner layer sheet 33 into a predetermined size is set at a predetermined position of a testing machine, and air of a constant flow rate V (unit: m 3 / m 2 · s) is passed through the sample. Pressure difference ΔQ (unit: kPa) was measured. The measured value ΔQ is divided by the flow rate V to obtain the air flow resistance R (unit: kPa · s / m), and the moisture permeability P (unit: m 3 / m 2 / sec) is P = K (constant) / R The moisture permeability of the inner layer sheet 33 was calculated by the formula, and the average value of the measurement results of 5 times. The first and second openings 61 and 62 may have various known shapes such as an ellipse, a rectangle such as a rectangle or a square, a triangle, or a star, in addition to the circular shape as illustrated.
　既述のとおり、第１接合ライン４１では、熱溶着加工や超音波溶着加工によって外層シート３０と中間シート３２とがシールされている。第１接合ライン４１において両シート３０，３２が溶着されていることから、接着剤による接合に比して接合強度が高くなる。また、第１接合ライン４１が接着剤を塗布して形成されている場合には、第１接合ライン４１上に位置する第１及び第２開口６１，６２から接着剤が外部に漏れ出るおそれがあるが、溶着加工されていることから、かかる事態が生じるおそれはない。 As described above, in the first bonding line 41, the outer layer sheet 30 and the intermediate sheet 32 are sealed by thermal welding or ultrasonic welding. Since the two sheets 30 and 32 are welded at the first bonding line 41, bonding strength is higher than bonding with an adhesive. In addition, when the first bonding line 41 is formed by applying an adhesive, there is a risk that the adhesive may leak to the outside from the first and second openings 61 and 62 located on the first bonding line 41. There is no possibility that such a situation will occur because it is welded.
　外層シート３０、中間シート３２及び内層シート３３は、繊維不織布製であって、内層シート３０の単位面積当たりの質量が、外層シート３０及び中間シート３２とのそれぞれの単位面積当たりの質量よりも小さいことが好ましい。内層シート３３は複数の開口を有さないが、おむつ１０内部の空気が透過する程度の透湿性を有するものであって、透湿性を有するために比較的に肉薄であって、かつ、単位面積当たりの質量が低いことが好ましく、例えば、外層シート３０及び中間シート３２の質量が約１３～２５ｇ／ｍ２であって、内層シート３３の質量が約１１～１３ｇ／ｍ２である。 The outer layer sheet 30, the intermediate sheet 32, and the inner layer sheet 33 are made of a fiber non-woven fabric, and the mass per unit area of the inner layer sheet 30 is smaller than the mass per unit area of the outer layer sheet 30 and the intermediate sheet 32. Is preferred. The inner layer sheet 33 does not have a plurality of openings, but has moisture permeability to such an extent that air in the diaper 10 is transmitted, and is relatively thin to have moisture permeability, and has a unit area The weight per unit is preferably low, for example, the weight of the outer layer sheet 30 and the intermediate sheet 32 is about 13 to 25 g / m 2 , and the weight of the inner layer sheet 33 is about 11 to 13 g / m 2 .
　再び、図２及び３を参照すると、前後ウエスト域１３，１４の内端部１３Ａ，１４Ａには、第１及び第２開口６１，６２が配置されていない。内端部１３Ａ，１４Ａは、吸収性パネル１２の両側縁部とともにレッグ開口縁部を形成するので、着用者の大腿部の動きによってシート破れが生じやすい部分である。したがって、内端部１３Ａ，１４Ａに第１及び第２開口６１，６２を配置しないことによって、所要のシート強度を維持し、着用者の大腿部の動きによるシート破れが抑制される。また、着用状態において、おむつ１０内部で発生した蒸気は通気路５０を介して上方へ流動するので、下方に位置する内端部１３Ａ，１４Ａにこれらの開口６１，６２が配置されていなくても、通気性が大きく低下するおそれはない。 Referring again to FIGS. 2 and 3, the first and second openings 61 and 62 are not disposed at the inner end portions 13A and 14A of the front and rear waist regions 13 and 14. The inner end portions 13A and 14A, together with the side edges of the absorbent panel 12, form the leg opening edge, so that the sheet tear is apt to occur due to the movement of the thighs of the wearer. Therefore, by not arranging the first and second openings 61 and 62 at the inner end portions 13A and 14A, the required sheet strength is maintained, and sheet tearing due to the movement of the thighs of the wearer is suppressed. Further, in the worn state, the steam generated inside the diaper 10 flows upward through the air passage 50, so these openings 61 and 62 are not disposed in the lower inner end portions 13A and 14A. There is no fear that the air permeability will be greatly reduced.
＜変形例＞
　図７は、変形例の一例におけるおむつ１０の図２と同様の展開平面図である。本変形例においては、第１接合ライン４１は前後ウエスト域１３，１４の中央部１３Ｃ，１４Ｃにのみ配置され、内外端部１３Ａ，１３Ｂ，１４Ａ，１４Ｂには、第２接合ライン４２が配置されている。また、前ウエスト域１３（前ウエストパネル１６）において、吸収性パネル１２よりも縦方向Ｙの外側に位置する部分（外側部分）６５には第１及び第２開口６１，６２が配置されていない。一方、後ウエスト域１４（後ウエストパネル１７）において、吸収性パネル１２の縦方向Ｙの外側に位置する部分(外側部分)６６において第１及び第２開口６１，６２が配置されている。前後ウエスト域１３，１４の外側部分６５，６６は、おむつ１０を着用するときに把持して引き上げる部分であるからシート破れが生じないように所要のシート強度を有することが好ましい。特に、前ウエスト域１３の外側部分６５は、着用者が着用する際に自らが把持して引っ張り上げる部分であって、第１及び第２開口６１，６２を配置しないことによって、所要のシート強度を維持することができ、おむつ１０を引き上げるときに一部が破れたりするのを抑制することができる。また、後ウエスト域１４の吸収性パネル１２の縦方向Ｙの外側に位置する外側部分６６は、着用者の腰部と当接する部分であって、背側に位置する排泄物によって蒸れ易く、痒みやかぶれ等の肌トラブルを生じやすいところであるが、本変形例においては、該部分６６に第１及び第２開口６１，６２が位置していることによって通気性が良好であって、かかる肌トラブルを抑制することができる。 <Modification>
FIG. 7 is a developed plan view similar to FIG. 2 of the diaper 10 in an example of a modification. In the present modification, the first bonding line 41 is disposed only at the central portions 13C and 14C of the front and rear waist regions 13 and 14, and the second bonding line 42 is disposed at the inner and outer end portions 13A, 13B, 14A and 14B. ing. Further, in the front waist region 13 (front waist panel 16), the first and second openings 61 and 62 are not disposed in a portion (outside portion) 65 located outside the absorbent panel 12 in the longitudinal direction Y . On the other hand, in the rear waist region 14 (rear waist panel 17), the first and second openings 61, 62 are disposed in a portion (outer portion) 66 located on the outer side in the longitudinal direction Y of the absorbent panel 12. Since the outer portions 65 and 66 of the front and rear waist regions 13 and 14 are gripped and pulled up when the diaper 10 is worn, it is preferable to have the required sheet strength so that sheet breakage does not occur. In particular, the outer portion 65 of the front waist region 13 is a portion that the wearer grips and pulls up when worn by the wearer, and does not arrange the first and second openings 61, 62, thereby providing required sheet strength. Can be maintained, and when pulling up the diaper 10, it can suppress that a part tears. In addition, the outer portion 66 located on the outer side in the longitudinal direction Y of the absorbent panel 12 of the rear waist region 14 is a portion that contacts the waist of the wearer and is easily stuffed by excrement located on the back side. The skin troubles such as rash are likely to occur, but in the present modification, the first and second openings 61 and 62 are located in the portion 66 so that the air permeability is good and the skin troubles It can be suppressed.
　本変形例においては、前ウエスト域１３の外側部分６５に第１及び第２開口６１，６２の非存在域が位置しているが、前ウエスト域１３の外側部分６５に第１及び第２開口６１，６２を配置し、後ウエスト域１４の外側部分６６に第１及び第２開口６１，６２の非存在域を配置してもよい。 In this modification, the non-existence area of the first and second openings 61 and 62 is located in the outer part 65 of the front waist area 13, but the first and second openings are located in the outer part 65 of the front waist area 13. 61 and 62 may be disposed, and a non-existing area of the first and second openings 61 and 62 may be disposed in the outer portion 66 of the rear waist region 14.
　着用物品１０を構成する部材には、特に明記されていない限りにおいて、本明細書に記載されている材料のほかに、この種の分野において通常用いられている公知の材料を制限なく用いることができる。また、本明細書において使用されている「第１」及び「第２」等の用語は、同様の要素、位置等を単に区別するために用いてある。 In addition to the materials described herein, the members constituting the wearing article 10 may use known materials commonly used in the field of this kind without limitation unless otherwise specified. it can. Also, the terms "first" and "second" as used herein are used merely to distinguish similar elements, locations, and the like.
１０　使い捨て着用物品
１１　ウエストパネル
１２　吸収性パネル
１３　前ウエスト域（第１又は第２ウエスト域）
１３Ａ　前ウエスト域の内端部
１４　後ウエスト域（第１又は第２ウエスト域）
１４Ａ　後ウエスト域の内端部
１５　クロッチ域
３０　外層シート
３１　弾性層
３２　中間シート
３３　内層シート
３５　弾性部材（前ウエスト弾性体）
３６　弾性部材（後ウエスト弾性体）
４１　接合部　（第１接合ライン）
４２　接合部　（第２接合ライン）
４５　非接合部（畝部）
６１　開口（第１開口）
６２　開口（第２開口）
Ｘ　横方向
Ｙ　縦方向 10 disposable wearing article 11 waist panel 12 absorbent panel 13 front waist area (first or second waist area)
13A Inner end 14 of front waist area Rear waist area (first or second waist area)
14A inner end portion of rear waist region 15 crotch region 30 outer layer sheet 31 elastic layer 32 intermediate sheet 33 inner layer sheet 35 elastic member (front waist elastic body)
36 Elastic member (rear waist elastic)
41 junction (1st junction line)
42 junction (second junction line)
45 Non-joined area
61 opening (first opening)
62 opening (second opening)
X horizontal Y vertical

Claims (7)

  1. 　縦方向及びそれに交差する横方向と、肌対向面及び非肌対向面とを有し、前後ウエスト域の一方である第１ウエスト域と、前記前後ウエスト域の他方である第２ウエスト域と、前記第１及び第２ウエスト域間に位置するクロッチ域と、ウエスト開口及び一対のレッグ開口とを含む使い捨て着用物品において、
    　前記第１及び第２ウエスト域のうちの少なくとも第１ウエスト域は、前記非肌対向面側に位置する外層シートと、前記肌対向面側に位置する弾性層とを含み、
    　前記外層シートは、前記縦方向へ延びる複数条の接合部と前記接合部間に位置する複数の非接合部とを有し、前記接合部において前記弾性層に接合されており、
    　前記弾性層は、前記非肌対向面側に位置する中間シート、前記肌対向面側に位置する透湿性の内層シートと、前記中間シートと前記内層シートとの間に介在された前記横方向へ延びる弾性部材とを含み、
    　前記外層シート及び前記中間シートの少なくとも一方は、前記縦方向及び前記横方向において互いに離間して配置された複数の開口を有し、
    　前記内層シートには、前記開口が形成されていないことを特徴とする前記着用物品。     A first waist area, which is one of the front and rear waist areas, having a skin-facing surface and a non-skin-facing surface, and a second waist area that is the other of the front and rear waist areas. A disposable wear article comprising a crotch area located between said first and second waist areas, a waist opening and a pair of leg openings,
    At least a first waist region of the first and second waist regions includes an outer layer sheet located on the non-skin facing surface side and an elastic layer located on the skin facing surface side,
    The outer layer sheet has the plurality of longitudinally extending joint portions and a plurality of non-joint portions located between the joint portions, and is joined to the elastic layer at the joint portions.
    The elastic layer is formed between the intermediate sheet located on the non-skin facing surface side, the moisture-permeable inner layer sheet located on the skin facing surface, and the lateral direction interposed between the intermediate sheet and the inner layer sheet. Including an extending elastic member,
    At least one of the outer layer sheet and the intermediate sheet has a plurality of openings spaced apart from each other in the longitudinal direction and the lateral direction,
    The wear article characterized in that the opening is not formed in the inner layer sheet.
  2. 　前記接合部において、前記外層シートと前記中間シートとが溶着されている請求項１に記載の着用物品。 The worn article according to claim 1, wherein the outer layer sheet and the intermediate sheet are welded at the joint portion.
  3. 　前記複数の開口は、前記外層シートに位置する第１開口と、前記中間シートに位置する第２開口とを有し、平面視において前記第１開口と前記第２開口とが互いに重なっていない請求項１又は２に記載の着用物品。 The plurality of openings have a first opening located in the outer layer sheet and a second opening located in the intermediate sheet, and the first opening and the second opening do not overlap each other in plan view The worn article according to item 1 or 2.
  4. 　前記内層シート、前記中間シート及び前記外層シートは、繊維不織布シートから形成されており、前記内層シートの単位面積当たりの質量が、前記中間シートと前記外層シートとのそれぞれの単位面積当たりの質量よりも小さい請求項１～３のいずれかに記載の着用物品。 The inner layer sheet, the intermediate sheet and the outer layer sheet are formed of a fiber non-woven sheet, and the mass per unit area of the inner layer sheet is from the mass per unit area of the intermediate sheet and the outer layer sheet The wearing article according to any one of claims 1 to 3, which is also small.
  5. 　前記複数の開口は、前記第１及び第２ウエスト域のうちの内端部には配置されていない請求項１～４のいずれかに記載の着用物品。 The wearing article according to any one of claims 1 to 4, wherein the plurality of openings are not arranged at the inner end of the first and second waist regions.
  6. 　前記第１及び第２ウエスト域を画成するウエストパネルと、前記クロッチ域から前記第１及び第２ウエスト域へ延びる吸収性パネルとを有し、前記複数の開口は、前記第１及び第２ウエスト域の一方のウエスト域において、前記吸収性パネルの前記縦方向の外側に配置される請求項１～５のいずれかに記載の着用物品。 A waist panel defining the first and second waist regions; and an absorbent panel extending from the crotch region to the first and second waist regions, the plurality of openings including the first and second openings The wearing article according to any one of claims 1 to 5, which is disposed outside the longitudinal direction of the absorbent panel in one waist region of the waist region.
  7. 　前記複数の開口は、それぞれ、ドット状であって、径寸法が約０．５～２．５ｍｍ、前記縦方向の離間寸法が約５．０～２０．０ｍｍ、前記横方向の離間寸法が約５．０～２０．０ｍｍである請求項１～６のいずれかに記載の着用物品。 The plurality of openings are each in the form of dots, each having a diameter of about 0.5 to 2.5 mm, a longitudinal separation of about 5.0 to 20.0 mm, and a lateral separation of about about The wearing article according to any one of claims 1 to 6, which has a size of 5.0 to 20.0 mm.
PCT/JP2016/063627 2015-06-26 2016-05-06 Disposable wearable article WO2016208280A1 (en)

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