WO2016208280A1 - Article pouvant être porté jetable - Google Patents

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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
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English (en)
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/zh
Publication of WO2016208280A1 publication Critical patent/WO2016208280A1/fr

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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.

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Abstract

L'invention concerne un article pouvant être porté jetable, la perméabilité à l'air à l'intérieur d'une couche étant améliorée par l'intermédiaire d'une pluralité d'ouvertures sans perdre de confort, et des déchets corporels sont empêchés de fuir vers l'extérieur depuis les ouvertures. Au moins une parmi une région de taille avant et une région de taille arrière (13, 14) d'un article pouvant être porté jetable (10) comprend une feuille de couche externe (30) positionnée sur le côté ne faisant pas face à la peau, et une couche élastique (31) positionnée sur le côté faisant face à la peau. La couche élastique (31) comprend une feuille de couche intermédiaire (32) positionnée sur le côté ne faisant pas face à la peau, une feuille de couche interne perméable à l'humidité (33) positionnée sur le côté faisant face à la peau, et un élément élastique (35, 36) interposé entre la feuille de couche intermédiaire (32) et la feuille de couche interne (33) et s'étendant dans la direction latérale (X). La feuille de couche externe (30) et la couche élastique (31) sont fixées l'une à l'autre par l'intermédiaire d'une pluralité de parties de liaison (41, 42) s'étendant dans la direction longitudinale (Y). Au moins une parmi la feuille de couche externe (30) et la feuille de couche intermédiaire (32) comprend une pluralité d'ouvertures (61, 62) disposées de façon à être mutuellement séparées dans la direction longitudinale (Y) et dans la direction latérale (X), et aucune ouverture (61, 62) n'est formée sur la feuille de couche interne (33).
PCT/JP2016/063627 2015-06-26 2016-05-06 Article pouvant être porté jetable WO2016208280A1 (fr)

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JP6506492B1 (ja) * 2017-06-21 2019-04-24 花王株式会社 吸収性物品
JP2020151086A (ja) * 2019-03-19 2020-09-24 大王製紙株式会社 使い捨ておむつ
JP2020151085A (ja) * 2019-03-19 2020-09-24 大王製紙株式会社 使い捨ておむつ
WO2020217684A1 (fr) * 2019-04-26 2020-10-29 ユニ・チャーム株式会社 Article absorbant

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Publication number Priority date Publication date Assignee Title
JP7025172B2 (ja) * 2017-10-12 2022-02-24 ユニ・チャーム株式会社 吸収性物品用伸縮性シート及びそれを使用した吸収性物品
JP7129262B2 (ja) * 2018-07-30 2022-09-01 大王製紙株式会社 使い捨て着用物品の伸縮構造、及びこの伸縮構造を有するパンツタイプ使い捨て着用物品
JP7201739B2 (ja) * 2021-05-21 2023-01-10 大王製紙株式会社 パンツタイプ使い捨て着用物品

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JP2011078477A (ja) * 2009-10-05 2011-04-21 Kao Corp 吸収性物品
JP2014188189A (ja) * 2013-03-27 2014-10-06 Daio Paper Corp 吸収性物品
JP2014221122A (ja) * 2013-05-13 2014-11-27 花王株式会社 パンツ型着用物品およびその製造方法
JP2015104607A (ja) * 2013-12-02 2015-06-08 株式会社リブドゥコーポレーション 使い捨てパンツ型おむつ

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JP2011078477A (ja) * 2009-10-05 2011-04-21 Kao Corp 吸収性物品
JP2014188189A (ja) * 2013-03-27 2014-10-06 Daio Paper Corp 吸収性物品
JP2014221122A (ja) * 2013-05-13 2014-11-27 花王株式会社 パンツ型着用物品およびその製造方法
JP2015104607A (ja) * 2013-12-02 2015-06-08 株式会社リブドゥコーポレーション 使い捨てパンツ型おむつ

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6506492B1 (ja) * 2017-06-21 2019-04-24 花王株式会社 吸収性物品
US12016757B2 (en) 2017-06-21 2024-06-25 Kao Corporation Absorbent article
JP2020151086A (ja) * 2019-03-19 2020-09-24 大王製紙株式会社 使い捨ておむつ
JP2020151085A (ja) * 2019-03-19 2020-09-24 大王製紙株式会社 使い捨ておむつ
JP7289679B2 (ja) 2019-03-19 2023-06-12 大王製紙株式会社 使い捨ておむつ
JP7362273B2 (ja) 2019-03-19 2023-10-17 大王製紙株式会社 使い捨ておむつ
WO2020217684A1 (fr) * 2019-04-26 2020-10-29 ユニ・チャーム株式会社 Article absorbant
JP2020179048A (ja) * 2019-04-26 2020-11-05 ユニ・チャーム株式会社 吸収性物品

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