WO2011142272A1 - Article absorbant jetable - Google Patents

Article absorbant jetable Download PDF

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Publication number
WO2011142272A1
WO2011142272A1 PCT/JP2011/060391 JP2011060391W WO2011142272A1 WO 2011142272 A1 WO2011142272 A1 WO 2011142272A1 JP 2011060391 W JP2011060391 W JP 2011060391W WO 2011142272 A1 WO2011142272 A1 WO 2011142272A1
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WO
WIPO (PCT)
Prior art keywords
sheet
absorbent element
recesses
intermediate sheet
nonwoven fabric
Prior art date
Application number
PCT/JP2011/060391
Other languages
English (en)
Japanese (ja)
Inventor
敬大 溝渕
美帆 毛利
Original Assignee
大王製紙株式会社
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Filing date
Publication date
Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2011142272A1 publication Critical patent/WO2011142272A1/fr

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Classifications

    • 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
    • A61F13/51108—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53743—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
    • A61F13/53747—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers the layer is facing the topsheet
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F2013/53765—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
    • A61F2013/53778—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with grooves

Definitions

  • the present invention relates to a disposable absorbent article such as a disposable diaper.
  • Disposable absorbent articles are required not only to prevent leakage of excrement such as urine, but also to prevent discomfort and rash caused by excretion of excrement such as urine on the skin.
  • a surface sheet for example, those having unevenness on the skin side surface as shown in Patent Documents 1 and 2 to reduce the contact area of the skin can be mentioned.
  • Patent Document 1 discloses a configuration that ensures the air permeability of the topsheet by defining the amount of air permeation in the horizontal direction of the topsheet with unevenness on the skin side surface.
  • the thickness and fiber density of a convex part and a recessed part on a surface sheet are prescribed
  • the main subject of this invention is providing the disposable absorbent article which transfers a high-viscosity excrement to an absorption element quickly, without impairing the absorption performance of a low-viscosity excrement.
  • the present invention that has solved the above problems is as follows.
  • ⁇ Invention of Claim 1> A liquid-permeable surface sheet and a liquid-impermeable sheet, an absorbent element including a fiber assembly interposed therebetween, and an intermediate sheet interposed between the surface sheet and the absorbent element.
  • the surface sheet is formed by arranging a large number of recesses on the skin contact side surface at intervals, so that the portion between the bottoms of the recesses is a relatively raised projection, and the fibers are closer to the bottom of the recesses.
  • the intermediate sheet is made of nonwoven fabric with high density
  • the intermediate sheet is made of nonwoven fabric
  • the absorbent element has a large number of concave portions arranged on the surface at intervals, so that the portion between the bottom portions of the concave portions is a convex portion that is relatively raised, and the fiber density increases as the bottom portion of the concave portion is approached.
  • Each convex portion of the topsheet is disposed so that at least a portion thereof overlaps at least one concave portion of the absorbent element, At least the bottom of the recess in the top sheet and the intermediate sheet, and the intermediate sheet and at least the top of the projection in the absorbent element are joined, respectively, and the back surface of the intermediate sheet and at least the recess in the absorbent element A space is formed between the bottom, A disposable absorbent article characterized by that.
  • the disposable absorbent article of the present invention can quickly absorb even high-viscosity excrement such as watery stool.
  • high-viscosity excrement such as watery stool.
  • the absorption is generally performed on the following principle. That is, in the initial stage of absorption, a large amount of excrement exists on the surface sheet or is supplied one after another, so the excrement sequentially permeates through both sides regardless of the concave or convex portions of the surface sheet. It will be delivered to the sheet.
  • the portion that the absorption of the absorption element cannot catch up is temporarily stored in the space, and can be sequentially delivered from this space to the absorption element (In other words, the excrement can be promptly moved to the absorption element in combination with the increase in the excretion receiving surface area of the absorption element due to the recess.
  • excrement that has moved to the absorption element is moved to the back of the absorption element by capillary action due to a fiber density gradient toward the bottom of the recess, while being moved by gravity in the absorption element. And pulled in and held.
  • the concave portion and the convex portion of the surface sheet indicate irregularities viewed from the skin contact side.
  • the area ratio of the recesses on the surface of the surface sheet is 10 to 20%
  • the area ratio of the recesses on the surface of the absorbent element is 20 to 30%
  • the depth of the recesses of the absorbent element is 1 to 3 mm.
  • the concave portions of the topsheet are a large number of dot-shaped concave portions having a diameter of 0.5 to 2.0 mm arranged in a dotted pattern, and the concave portions of the absorbent element are spaced apart from each other by a larger distance than the diameter of the dot-shaped concave portions.
  • the lattice spacing of the recesses of the absorbent element is larger than the diameter of the dot-like recesses of the topsheet, regardless of the arrangement of the topsheet recesses and the absorbent element recesses (e.g. )
  • Each convex part of the topsheet is arranged so that at least a part thereof overlaps at least one concave part of the absorbent element.
  • the diameter of a dot-shaped recessed part means a long diameter (length of the longest part), when the shape of a dot-shaped recessed part is other than a circle.
  • the non-woven fabric of the surface sheet is a hydrophilic air-through non-woven fabric having a synthetic fiber having a fineness of 1.5 to 3.3 dtex as a raw fiber, a thickness of 0.2 to 0.8 mm, and a basis weight of 15 to 25 g / m 2 .
  • the non-woven fabric of the intermediate sheet is made of synthetic fiber having a fineness of 1.7 to 5.0 dtex as a raw material fiber, and has a thickness of 0.1 to 0.5 mm and a basis weight of 18 to 30 g / m 2.
  • the absorbent element is formed by wrapping a laminated body obtained by mixing and superimposing superabsorbent polymer particles and pulp with a packaging sheet made of crepe paper, and the basis weight of the superabsorbent polymer particles is 50 to 350 g / m 2.
  • the basis weight of the pulp is 100 to 300 g / m 2
  • the basis weight of the crepe paper is 5 to 40 g / m 2 ;
  • the superabsorbent polymer particles have a water absorption amount specified by JIS K 7223-1996 of 40 g / g or more and a water absorption rate specified by JIS K 7224-1996 of 35 g / g / s or less.
  • the disposable absorbent article according to any one of claims 1 to 3.
  • each member of the present invention is made of such a material, it is extremely advantageous for exerting the excrement moving action of the present invention described above, such as facilitating the transfer of excrement from the top sheet to the absorbent element. .
  • the high-viscosity excrement can be quickly transferred to the absorption element without losing the absorption performance of the low-viscosity excrement while having the advantage of the surface sheet provided with unevenness on the skin contact surface. And so on.
  • FIG. 6 is a sectional view taken along line 6-6 of FIG.
  • FIG. 7 is a sectional view taken along line 7-7 in FIG.
  • FIG. 8 is a sectional view taken along line 8-8 in FIG.
  • FIG. 9 is a sectional view taken along line 9-9 in FIG.
  • It is a top view which shows a surface sheet, an intermediate sheet, and an absorption element.
  • It is a principal part expanded sectional view which shows a surface sheet, an intermediate sheet, and an absorption element. It is a cross-sectional photograph of the joined surface sheet 30 and intermediate sheet 40.
  • front-rear direction means a direction connecting the ventral side (front side) and back side (rear side)
  • width direction means a direction (left-right direction) perpendicular to the front-rear direction.
  • Vertical direction means the wearing state of the diaper, that is, the width when the diaper is folded in two at the crotch so that the both sides of the diaper and the back part of the diaper overlap each other It means the direction orthogonal to the direction.
  • FIG. 1 to 8 show an example of a tape-type disposable diaper.
  • This tape-type disposable diaper is a part that extends from the lower abdomen through the crotch part to cover the buttocks along the center in the width direction, and a liquid-permeable surface sheet that forms the body-side surface, and the outer surface side
  • An absorbent main body 10 that is a part where the absorbent element 50 is interposed between the liquid-impermeable sheet located in the liquid-impervious sheet, and a part that extends to the front side and the rear side of the absorbent main body part 10 respectively, and It has a ventral end flap part FE and a dorsal end flap part BE, which are parts that do not have the absorbent element 50.
  • this tape-type disposable diaper has a pair of abdominal side flap portions FF, FF extending to the outside in the width direction from the crotch portion C on both sides of the upper edge side portion of the abdominal side F, and On both sides of the edge portion, a pair of back side flap portions BF, BF extending to the outside in the width direction from the crotch portion C are provided.
  • the fastening tape 13 as a locking member is provided in the back side flap part BF and BF, respectively.
  • the entire outer surface of the absorbent main body 10 and the side flap portions BF and FF on the back side and the abdomen side is formed by the exterior sheet 12.
  • a liquid-impermeable sheet 11 is fixed to the inner surface side of the exterior sheet 12 with an adhesive such as a hot-melt adhesive, and an absorbent element is further disposed on the inner surface side of the liquid-impermeable sheet 11.
  • 50, the intermediate sheet 40, and the top sheet 30 are laminated in this order.
  • the top sheet 30 and the liquid-impermeable sheet 11 are rectangular in the illustrated example, have a slightly larger dimension in the front-rear direction and the width direction than the absorbent element 50, and are eaten from the side edges of the absorbent element 50 in the top sheet 30.
  • the peripheral edge that protrudes and the peripheral edge that protrudes from the side edge of the absorbent element 50 in the liquid-impermeable sheet 11 are fixed by a hot melt adhesive or the like.
  • the liquid-impermeable sheet 11 is made of a moisture-permeable polyethylene film or the like, and is formed to be slightly wider than the top sheet 30.
  • side barrier cuffs 60, 60 projecting (standing) on the skin side of the wearer are provided on both sides of the absorbent main body 10, and a barrier sheet forming the side barrier cuffs 60, 60 is provided.
  • 62 and 62 are extended over the whole width direction outer side of the absorptive main-body part 10 including the inner surface of each side flap part BF and FF of back side and abdominal side.
  • the exterior sheet 12 is a part that supports the absorbent element 50 and is attached to the wearer.
  • the exterior sheet 12 has an hourglass shape in which the center part in the front-rear direction on both sides is constricted, and this is a part into which the wearer's leg is placed.
  • the exterior sheet 12 is preferably a non-woven fabric, but is not limited thereto.
  • the type of the nonwoven fabric is not particularly limited, and as the material fiber, for example, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or polyamide, recycled fibers such as rayon or cupra, and natural fibers such as cotton are used.
  • a spunlace method, a spunbond method, a thermal bond method, an air-through method, a needle punch method, or the like can be used.
  • a long-fiber nonwoven fabric such as a spunbond nonwoven fabric, an SMS nonwoven fabric, or an SMMS nonwoven fabric is preferable in that both the touch and strength can be achieved.
  • the nonwoven fabrics 12 are preferably bonded to each other with a hot melt adhesive or the like.
  • the fiber basis weight is desirably 10 to 50 g / m 2 , particularly 15 to 30 g / m 2 .
  • liquid-impermeable sheet 11 The material of the liquid-impermeable sheet 11 is not particularly limited.
  • the liquid-impermeable sheet 11 is substantially made of an olefin resin such as polyethylene or polypropylene, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet, or a waterproof film.
  • Non-woven fabrics that ensure liquid impermeability in this case, liquid impervious sheets are composed of waterproof films and non-woven fabrics).
  • a liquid-impermeable and moisture-permeable material that has been used and used in recent years from the viewpoint of preventing stuffiness can also be exemplified.
  • an inorganic filler is kneaded in an olefin resin such as polyethylene or polypropylene, and the sheet is formed, and then stretched in a uniaxial or biaxial direction.
  • an olefin resin such as polyethylene or polypropylene
  • the microporous sheet obtained in this way can be given.
  • a sheet that is liquid-impermeable without using a film can also be used as the liquid-impermeable sheet 11.
  • a non-woven fabric As the top sheet 30, a non-woven fabric is used. It is more preferable to use a non-porous nonwoven fabric.
  • the raw material fibers of the nonwoven fabric are not particularly limited, but it is preferable to use synthetic fibers capable of heat embossing such as olefins such as polyethylene and polypropylene, polyesters, and polyamides.
  • any known method such as a spun lace method, a spun bond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, a point bond method and the like can be used. The use of the air-through method having bulkiness is particularly preferred.
  • a hydrophobic nonwoven fabric can be used in addition to a hydrophilic nonwoven fabric using hydrophilic raw material fibers or subjected to a hydrophilic treatment.
  • the top sheet 30 has a large number of recesses 31 arranged at intervals on the skin contact side surface, so that the portion between the bottoms of the recesses 31 is relatively It is made of a non-woven fabric that has a raised protrusion 32 and has a fiber density that increases as it approaches the bottom of the recess 31.
  • the surface sheet 30 may have an uneven shape on the entire skin contact side surface, or only the wearer's excretion opening contact portion (particularly the anus contact portion) may have an uneven shape. Although unevenness may be provided on the back surface of the topsheet 30, it is preferable that there is no unevenness.
  • any of publicly known methods such as a method of forming with a mesh pattern at the time of nonwoven fabric formation and a method of imparting the recess 31 to the formed nonwoven fabric by heat embossing can be used. Since the fiber density needs to be higher in the concave portion 31 than in the convex portion 32, it is desirable to provide irregularities on the surface sheet by a method involving compression, particularly heat embossing. In particular, in the case of heat embossing, the flexibility of the surface sheet is easily impaired in the recess 31, and thus the recess 31 is formed so that the area thereof is smaller than the area of the protrusion 32 (part other than the bottom of the recess 31). It is preferable.
  • the shape and arrangement of the recesses 31 are not particularly limited, but the dot-like recesses 31 are provided in the form of dots such as a staggered arrangement (example shown in FIG. 7) or a matrix arrangement (example shown in FIG. 11) as shown in the figure. Is preferred.
  • the diameter 31r of the recess 31 is preferably 0.5 to 2.0 mm, particularly 1.0 to 1.5 mm.
  • the interval (width direction and longitudinal direction) 31d between the recesses 31 is preferably 0.5 to 4.0 mm, particularly preferably 1.5 to 3.0 mm.
  • the area ratio of the recesses 31 on the surface of the topsheet 30 (ratio of the area of the recesses 31 in the recess formation region of the topsheet 30) is preferably 10 to 20%, particularly preferably 11 to 14%.
  • the depth 31z of the recess 31 is preferably 0.5 to 2.0 mm, particularly 1.0 to 1.5 mm.
  • the nonwoven fabric constituting the top sheet 30 is preferably one having a basis weight of 15 to 25 g / m 2 , particularly 20 to 25 g / m 2 . If the basis weight is too low, it is difficult to make a difference in uneven portions due to heat embossing. If the basis weight is too high, the thickness of the convex portion 32 increases, and the liquid is easily retained in the convex portion 32.
  • the thickness of the top sheet 30 is preferably 0.2 to 0.8 mm, particularly 0.3 to 0.6 mm.
  • the fiber length of the fibers constituting the nonwoven fabric is 35 to 60 mm (more preferably 40 to 55 mm), and the fineness is 1.5 to 3.3 dtex (more preferably 2.2 to 2.8 dtex). preferable.
  • the Clark stiffness (JIS P 8143 (1996)) of the nonwoven fabric constituting the surface sheet 30 is preferably 60 to 100, particularly preferably 70 to 85. If the stiffness is higher than 100, the flexibility of the skin contact surface is impaired, and the wearing feeling is inferior. On the other hand, when it is lower than 60, the uneven shape is difficult to be held and is easily crushed.
  • the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.
  • An intermediate sheet (also referred to as a second sheet) 40 is provided between the top sheet 30 and the absorbent element 50 in order to move excrement that has passed through the top sheet 30 to the absorbent element and prevent reversal.
  • the intermediate sheet 40 is preferably composed of a non-woven fabric having a higher water absorption (JIS L 1907 Bayrec method) than the top sheet 30.
  • a nonwoven fabric of the intermediate sheet 40 a raw material nonwoven fabric having a hydrophilic property higher than that of the nonwoven fabric of the topsheet 30 is used, and a material similar to the topsheet 30 is provided with a hydrophilic agent. It can also be used.
  • the raw material fiber of the nonwoven fabric used for the intermediate sheet 40 is not particularly limited, it is preferable to use synthetic fibers such as olefin-based, polyester-based, and polyamide-based fibers such as polyethylene and polypropylene.
  • synthetic fibers such as olefin-based, polyester-based, and polyamide-based fibers such as polyethylene and polypropylene.
  • a processing method of the nonwoven fabric constituting the intermediate sheet 40 any known method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, a point bond method, or the like is used.
  • the use of an air-through method having bulkiness is particularly preferred.
  • the intermediate sheet 40 may have irregularities on at least one surface of the front and back surfaces, but preferably has no irregularities on both the front and back surfaces.
  • a non-porous nonwoven fabric is preferably used as the intermediate sheet 40 as shown in FIG. 7 and FIG. 8 because it has excellent diffusibility in the intermediate sheet 40. However, as shown in FIG. 11 and FIG. It is also a preferred form to use a non-woven fabric having 41).
  • the opening may be provided by a mesh pattern at the time of forming the nonwoven fabric, but is preferably provided by a punching process using a heated punching pin (for example, a process using a punching device disclosed in JP-A-6-238597).
  • the fibers at the periphery of the opening are melted to form a film, and the density of the surrounding fibers becomes denser than other parts. Therefore, the excrement reaching the intermediate sheet 40 is caused by capillary action. Easy to move to the peripheral edge of the aperture.
  • the opening 41 may be disposed on the entire intermediate sheet 40 as illustrated, or may be disposed only on the wearer's excretion opening contact portion (particularly the anus contact portion).
  • the diameter 41r of the opening 41 is preferably 0.1 to 1.0 mm, particularly 0.4 to 0.8 mm. Further, the distance 41d between the openings 41 is preferably 1.0 to 5.0 mm (more preferably 1.5 to 3.5 mm) and smaller than the distance 31d of the concave portion 31 of the topsheet 30. In the portion where the opening 41 is provided, it is preferable that there are more openings 41 than the recesses 31.
  • the aperture 41 is formed by a perforated pin, a large number of apertures 41 are arranged to increase the density of fibers near the periphery of the aperture, and therefore excretion from the topsheet 40 to the intermediate sheet 30 is further increased. It is thought that things are easy to move. Moreover, the transfer of the excrement having high viscosity to the absorber can be made quicker.
  • the nonwoven fabric used for the intermediate sheet 40 it is preferable to use a nonwoven fabric having a higher fiber density than the nonwoven fabric of the top sheet 30.
  • the basis weight of the intermediate sheet 40 is preferably 20 to 30 g / m 2 , particularly preferably 20 to 23 g / m 2 .
  • the thickness of the intermediate sheet 40 is preferably 0.1 to 0.5 mm, particularly preferably 0.1 to 0.4 mm.
  • the fiber length of the fibers constituting the nonwoven fabric is 35 to 60 mm (more preferably 40 to 55 mm), and the fineness is 1.7 to 5.0 dtex (more preferably 1.7 to 2.8 dtex). preferable.
  • the Clark stiffness (JIS P 8143 (1996)) of the nonwoven fabric constituting the intermediate sheet 40 is 30 to 80, particularly 30 to 60, and is preferably lower than the top sheet 30. If the stiffness is higher than 80, the unevenness caused by partial joining with the topsheet 30 becomes large, and the contact area with the absorber 56 (or the packaging sheet 58) becomes small, so that the absorption efficiency may be reduced. There is. On the other hand, if it is lower than 30, the feeling of thickness required for the intermediate sheet is impaired.
  • the intermediate sheet 40 in the illustrated form has the same width as the top sheet 30, it may be shorter than the width of the absorbent element 50 and disposed only in the center.
  • the length in the longitudinal direction of the intermediate sheet 40 may be the same as the entire length of the diaper, may be the same as the length of the absorbent element 50, or may be within a short length range centered on the region that receives the liquid.
  • the intermediate sheet 40 is joined at the bottom of the recess 31 of the top sheet 30.
  • a joining method known methods such as adhesion with a hot-melt adhesive, spunlace, heat embossing, ultrasonic welding, and the like can be used.
  • the heat embossing which has the advantage that it can join simultaneously with formation of can be used suitably.
  • heat embossing it is preferable to use a material having a melting point comparable to that of the top sheet 30 as the material of the intermediate sheet 40. It is preferable that the top sheet 30 and the intermediate sheet 40 are bonded to each other in all the recesses, but may have a portion that is not bonded.
  • a portion corresponding to the convex portion 32 of the topsheet 30 is not joined to the intermediate sheet 40 and a gap 33 is provided between the topsheet 30 and the intermediate sheet 40.
  • the following method is proposed. That is, when only the portion of the concave portion 31 of the topsheet 30 is joined to the intermediate sheet 40 by heat embossing, the intermediate sheet 40 and the topsheet 30 are joined while being transported in the production line while being transported, and the tension is released after joining. By contracting the intermediate sheet 40 from the top sheet 30, the unbonded portion (the convex portion 32) of the top sheet 30 can be lifted from the intermediate sheet 40 and separated.
  • the intermediate sheet 40 is absorbed as much as possible, such as fixing the intermediate sheet 40 to a smooth support during heat embossing. It is preferable to take measures that do not cause unevenness on the side of the body.
  • the excrement that has reached the convex portion 32 of the top sheet 30 can easily move to the periphery of the concave portion 31, and the unevenness of the top sheet 30 can be increased to reduce the skin contact area. It is considered that there is an advantage that the cushioning property of the seat 30 can be increased.
  • the absorption element 50 is a part that absorbs and holds liquid such as urine and loose stool.
  • the absorbent element 50 includes an absorbent body 56 and a packaging sheet 58 that wraps at least the back and side surfaces of the absorbent body 56.
  • the packaging sheet 58 can be omitted.
  • the absorbent element 50 can be adhered to the inner surface of the liquid-impermeable sheet 11 via an adhesive such as a hot melt adhesive on the back surface.
  • the thickness of the absorbent element 50 is not particularly limited, but is preferably about 3 to 5 mm.
  • the absorber 56 can be formed of an aggregate of fibers.
  • This fiber assembly a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate in addition to short fibers such as cotton-like pulp and synthetic fibers Can also be used.
  • the fiber basis weight can be, for example, about 100 to 300 g / m 2 when stacking cotton-like pulp or short fibers, and about 30 to 120 g / m 2 for filament aggregates, for example. Can do.
  • the fineness in the case of synthetic fibers is, for example, 1 to 16 dtex, preferably 1 to 10 dtex, and more preferably 1 to 5 dtex.
  • the filament may be a non-crimped fiber, but is preferably a crimped fiber.
  • the crimped degree of the crimped fiber can be, for example, about 5 to 75, preferably 10 to 50, and more preferably about 15 to 50 per inch.
  • a crimped fiber that is uniformly crimped is often used.
  • the absorbent body 56 preferably includes superabsorbent polymer particles.
  • the superabsorbent polymer particles are dispersed substantially throughout the thickness direction with respect to the aggregate of fibers. Is desirable.
  • “distributed in the entire thickness direction” means “distributed unevenly in the upper part, the lower part, and / or the middle part of the aggregate of fibers in addition to the form“ uniformly ”distributed in the entire thickness direction. However, it is still included in the form of being dispersed in the upper, lower and middle portions. Further, a form in which some SAP particles do not enter the fiber assembly and remain on the surface thereof, and a form in which some SAP particles pass through the fiber assembly and are on the packaging sheet 58 are also excluded. It is not something.
  • the superabsorbent polymer particles include “powder” in addition to “particles”.
  • particle diameter of the superabsorbent polymer particles those used in this type of absorbent article can be used as they are, and those having a particle size of 1000 ⁇ m or less, particularly 150 to 400 ⁇ m are desirable.
  • the material of the superabsorbent polymer particles can be used without any particular limitation, but those having a water absorption of 40 g / g or more, particularly 57 to 65 g / g are suitable.
  • Superabsorbent polymer particles include starch, cellulose and synthetic polymers, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link. Or an acrylic acid (salt) polymer can be used.
  • starch-acrylic acid (salt) graft copolymer such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link.
  • an acrylic acid (salt) polymer can be used.
  • shape of the superabsorbent polymer particles a commonly used granular material is suitable, but other shapes can also be used.
  • the superabsorbent polymer particles those having a water absorption rate of 35 g / g / s or less, particularly 35 to 75 g / g / s are preferably used.
  • the water absorption speed exceeds 35 seconds, so-called reversal that the liquid supplied into the absorber 56 returns to the outside of the absorber 56 is likely to occur.
  • the basis weight of the superabsorbent polymer particles can be appropriately determined according to the amount of absorption required for the use of the absorber 56. Therefore, although it cannot be generally stated, it can be 50 to 350 g / m 2, and particularly preferably 120 to 200 g / m 2 . If the amount of polymer is less than 50 g / m 2, it is difficult to secure the absorption amount. When it exceeds 350 g / m 2 , not only the effect is saturated, but also the sensation of incongruity due to the excess of superabsorbent polymer particles is given.
  • the packaging sheet 58 When the packaging sheet 58 is used, crepe paper, a nonwoven fabric, a polylaminated nonwoven fabric, a sheet having small holes, or the like can be used as the material. However, it is desirable that the superabsorbent polymer particles be a sheet that does not escape.
  • a nonwoven fabric is used instead of the crepe paper, a hydrophilic SMMS (spunbond / meltblown / meltblown / spunbond) nonwoven fabric is particularly suitable, and polypropylene, polyethylene / polypropylene, etc. can be used as the material.
  • the fiber basis weight of the packaging sheet 58 is preferably 5 to 40 g / m 2 , particularly 10 to 30 g / m 2 .
  • the packaging sheet 58 may wrap only the back surface and side surfaces of the layer in addition to the form of wrapping the entire absorbent body 56.
  • the upper and side surfaces of the absorbent body 56 are covered with crepe paper or a nonwoven fabric
  • the lower surface is covered with a liquid-impermeable sheet such as polyethylene
  • the upper surface of the absorbent body 56 is covered with crepe paper or a nonwoven fabric.
  • the lower surface may be covered with a liquid-impermeable sheet such as polyethylene (each of these materials is a component of the packaging sheet).
  • the absorbent body 56 may be sandwiched between two upper and lower sheets or disposed only on the lower surface, but this is not desirable because it is difficult to prevent the movement of the superabsorbent polymer particles.
  • the intermediate sheet 40 and the absorbent element 50 As a method for joining the intermediate sheet 40 and the absorbent element 50, known methods such as adhesion with a hot melt adhesive, spunlace, heat embossing, ultrasonic welding, etc. can be used. Since the surface sheet 30 and the intermediate sheet 40 are easily joined at a position different from the joining portion, bonding by hot melt adhesive spiral coating, summit coating, or the like is preferable.
  • the absorbent element 50 is preferably joined to the intermediate sheet 40 at all of the convex portions 52, but may have a portion that is not joined. Moreover, although it is preferable that a space is formed between the concave portion of the absorbent element and the intermediate sheet 40, the space may be crushed.
  • the absorbent element 50 may have an uneven shape on the entire side surface of the intermediate sheet, or only the wearer's excretory opening contact portion (particularly the anus contact portion) may have an uneven shape.
  • the fiber density needs to be higher in the concave portion 51 than in the convex portion 52, and therefore a method involving compression such as heat embossing is preferable.
  • the shape and arrangement of the recesses 51 are not particularly limited, but it is preferable to arrange the groove-shaped (linear) recesses in an oblique lattice pattern as shown in FIGS. 7 and 10A. It is also preferable to modify this form so as to form an intermittent form in which no concave portion is provided at the intersection of the lattice as shown in FIG.
  • a lattice shape including a groove-like recess along the longitudinal direction and a groove-like recess along the width direction may be used. Furthermore, as shown in FIGS.
  • the recess 51 is a lattice pattern
  • the width 51r of the recess is preferably 0.6 to 2.5 mm, particularly 1.2 to 2.0 mm.
  • the diameter of the recess (the longest portion) The length) is preferably 0.5 to 2.5 mm, particularly preferably 1.0 to 2.0 mm.
  • the interval between the recesses 51 is preferably 5 to 30 mm, particularly 10 to 15 mm.
  • the area ratio of the recesses 51 on the surface of the absorbent element 50 is preferably 20 to 30%, particularly preferably 25 to 28%.
  • the depth 51z of the recess 51 is preferably 1.0 to 3.0 mm, particularly preferably 1.5 to 2.0 mm.
  • the concave portions 31 of the topsheet 30 are formed as a large number of dot-shaped concave portions 31 arranged in a dotted pattern, and the concave portions 51 of the absorbent element 50 are made larger than the diameter of the dot-shaped concave portions 31 of the topsheet 30. It is preferable to form the groove-like recesses 51 arranged in a grid pattern with a large interval, and in particular, 50% or more, preferably 100%, of the dot-like recesses 31 of the topsheet 30 is the groove-like shape of the absorbent element 50. It is preferable to configure so as not to overlap with the recess 51.
  • the concave portion 31 of the surface sheet 30 has such a dot-like pattern, the surface of the surface sheet 30 while preventing the excrement adhered to the surface sheet 30 or the surface sheet 30 itself from adhering to the skin, the rash, etc.
  • the liquid flow at can be suppressed.
  • the concave portions 51 of the absorbent element 50 have such a lattice pattern, the space 53 formed between the absorbent element 50 and the intermediate sheet 40 extends along the surface of the absorbent element 50, so Since the excrement reaching between the element 50 and the intermediate sheet 40 is delivered to the absorbent element 50 while diffusing along the surface of the absorbent element 50, the excrement is efficiently delivered to the absorbent element 50 and absorbed.
  • each convex part 32 of the topsheet 30 is arranged so that at least a part thereof overlaps at least one concave part 51 of the absorbent element 50 (even if inevitable deviation occurs).
  • the side barrier cuff 60 is constituted by a barrier sheet 62 that is substantially continuous in the width direction, and an elongated elastic elastic member 63 that is fixed to the barrier sheet 62 in an extended state along the front-rear direction.
  • a barrier sheet 62 a water-repellent nonwoven fabric can be used, and as the elastic elastic member 63, thread rubber or the like can be used.
  • a plurality of elastic elastic members can be provided in addition to a plurality of elastic expansion members.
  • the inner surface of the barrier sheet 62 has a fixing start end in the width direction on the side portion of the top sheet 30, and a portion on the outer side in the width direction from the fixing start end is on the side portion of the liquid-impermeable sheet 11 and on the outer side in the width direction. It fixes to the side part of the exterior sheet
  • leg elastic elastic members 64 made of rubber thread or the like are provided along the front-rear direction between the sheets of the portions where the barrier sheet 62 and the exterior sheet 12 face each other. It has been.
  • the width direction inner side of the side barrier cuff 60 is fixed on the top sheet 30 at both ends in the longitudinal direction of the product, but the portion between them is an unfixed free part. The portion comes to stand by the contraction force of the rubber thread 63.
  • the diaper is worn, the diaper is attached to the body in the shape of a boat, and the contraction force of the rubber thread 63 acts, so that the side barrier cuffs 60 stand up and adhere to the legs around the contraction force of the rubber thread 63. .
  • so-called side leakage from around the legs is prevented.
  • the front and rear direction end portions of the barrier sheet 62 on the inner side in the width direction are divided into a base end side portion extending from the outer side in the width direction to the inner side in the width direction and a center side in the width direction of the base end side portion. It is also possible to fix in a double-folded state having a distal end side portion that is folded back from the edge toward the body side and extends outward in the width direction, and the portion in between can be an unfixed free portion.
  • the fastening tape 13 has a base portion of a sheet base material 13C made of a nonwoven fabric, a plastic film, a polylaminated nonwoven fabric, paper or a composite material thereof attached to the diaper and protrudes from the diaper.
  • a hook material 13 ⁇ / b> A of a mechanical fastener is provided as a locking portion for the ventral side at the distal end side portion.
  • the hook material 13A is joined to the sheet base 13C with an adhesive so as not to be peeled off.
  • the length X1 in the width direction of the diaper is preferably 10 to 50 mm, particularly 20 to 40 mm, and the length Y1 in the front-rear direction is 20 to 100 mm, among the dimensions of the attachment portion of the fastening tape 13.
  • the thickness is preferably 40 to 80 mm.
  • the length in the width direction of the diaper is preferably 30 to 80 mm, particularly preferably 40 to 60 mm, and the length (height) in the front-rear direction is 20 to 70 mm.
  • the thickness is preferably 25 to 50 mm.
  • the fastening tape 13 when a part or all of the fastening tape 13 has a substantially tapered shape, for example, and the length in the front-rear direction and the length in the width direction are not constant, the numerical range is determined by an average value.
  • the fastening tape 13 may have a symmetrical shape such as a rectangular shape.
  • the fastening tape 13 is a convex shape composed of a wide attachment portion and an elongated tip side portion, the grip portion on the tip side portion can be easily picked and This is preferable because the tension between the bases of this region acts over a wide range.
  • the hook member 13A has a large number of engaging protrusions on the outer surface side.
  • the shape of the engaging protrusion is (A) Le-shaped, (B) J-shaped, (C) Mushroom-shaped, (D) T-shaped, (E) Double J-shaped (J-shaped And the like may be any shape.
  • an adhesive material layer can be provided as a locking portion of the fastening tape 13.
  • the fastening tape When installing the diaper, the fastening tape is locked to an appropriate position on the outer surface of the ventral side F with the back side flap portion BF being overlapped on the outside of the ventral side flap portion FF.
  • the position and size of the fastening portion of the fastening tape 13 can be arbitrarily determined.
  • the locking location In diapers for infants, the locking location is a rectangular range of 20 to 80 mm in the front-rear direction and 150 to 300 mm in the width direction, and the distance in the height direction between the upper edge and the ventral upper edge is 0 to 60 mm, particularly 20 to 50 mm. And the center in the width direction of the product.
  • the tension acting between the attachment portions of the left and right fastening tapes 13 when the diaper is attached is preferable because the back side end of the absorbent element 50 is firmly pressed against the body.
  • the attachment part of the fastening tape 13 is too far from the back side end part (rear end part) of the diaper, the tension acting between the attachment parts of the left and right fastening tapes 13 when the diaper is mounted is the back side end part of the diaper. Therefore, a gap is likely to occur between the back end of the diaper and the body surface. Therefore, the length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the base portion of the fastening tape 13.
  • a target sheet 74 having a target for facilitating the locking at the locking position of the fastening tape 13 on the ventral side F.
  • a target sheet 74 can be used in which a large number of loop yarns are formed on the surface of a sheet base material made of a plastic film or a nonwoven fabric so that the engagement protrusions of the hook material are entangled.
  • a sheet base material made of a plastic film having a smooth surface that is rich in adhesiveness can be used.
  • the fastening portion of the fastening tape 13 on the ventral side F is made of a nonwoven fabric
  • the exterior sheet 12 of the illustrated form is made of a nonwoven fabric and the fastening portion of the fastening tape 13 is a hook material 13A
  • the target sheet 74 can be omitted, and the hook material 13A can be entangled with the nonwoven fabric of the exterior sheet 12 and locked.
  • the target sheet 74 may be provided between the exterior sheet 12 and the liquid-impermeable sheet 11.
  • End flap The end flap part is a part that extends to the front side and the rear side of the absorbent main body 10 and does not have the absorbent element 50, and the front extension part is the ventral end flap part FE.
  • the extended portion on the rear side is the back end flap portion BE.
  • the length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the attachment portion of the fastening tape 13 for the reasons described above. If it is too close, a gap is likely to occur between the back end of the diaper and the body surface due to the thickness and stiffness of the absorbent element 50, so that it is preferably 10 mm or more.
  • the length in the front-rear direction of the ventral end flap part FE and the back end flap part BE is preferably about 5 to 20% of the length L in the front-rear direction of the entire diaper. In particular, a thickness of 20 to 50 mm is appropriate.
  • a belt-like back-side elastic sheet 70 that elastically expands and contracts in the width direction is provided between the fastening tapes 13 to improve the fit in the diaper back side.
  • Both end portions of the back-side elastic sheet 70 are preferably extended to a portion that overlaps with the attachment portions of both fastening tapes 13, but may be separated to the center in the width direction.
  • the back-and-forth stretchable sheet 70 has a front-rear dimension that is approximately the same as the front-rear dimension of the attachment portion of the fastening tape 13, but may have a dimensional difference of about ⁇ 20%.
  • the back-side elastic sheet 70 may use a sheet-like elastic member such as a rubber sheet, but it is preferable to use a nonwoven fabric or paper from the viewpoint of air permeability. In this case, a sheet-like elastic member having air permeability such as a stretchable nonwoven fabric can be used. However, as shown in FIG. 5, the sheet base material 71 such as two nonwoven fabrics is bonded with an adhesive such as a hot melt adhesive.
  • the elastic stretch member 72 such as a perforated sheet, net, or elongated (thread or string) is fixed in a stretched state in the width direction between the sheet bases 71.
  • the sheet base 71 in this case, the same one as the exterior sheet 12 can be used.
  • the stretch rate of the elastic elastic member 72 is preferably about 150 to 250%.
  • an elongated member (thread-like or string-like) is used as the elastic elastic member 72, it is preferable to provide about 5 to 15 members with a thickness of 420 to 1120 dtex at intervals 72d of 3 to 10 mm.
  • a part of the elastic expansion / contraction member 72 is arranged so as to cross the absorbent element 50 as shown in the figure because the fitting property of the absorption element 50 is improved, but in this case, the elastic expansion / contraction member 72 is used. If the contraction force is prevented from acting on a part or all of the overlapping portion by means such as cutting, the back end of the absorbent element 50 does not contract in the width direction, so that the fit is further improved.
  • the elastic elastic member 72 may be fixed over the entire length of the sheet base material 71 in the longitudinal direction of the sheet (width direction of the diaper), but in order to prevent the sheet from shrinking or curling when attached to the diaper body, In the range of about 5 to 20 mm at the end in the front-rear direction (diaper width direction), it is preferable that the contraction force does not work or the elastic elastic member 72 does not exist.
  • the back-side stretchable sheet 70 is sandwiched between the barrier sheet 62 and the exterior sheet 12 on both sides in the width direction of the liquid-impermeable sheet 11 and is liquid-impermeable at a portion overlapping the liquid-impermeable sheet 11.
  • the permeable sheet 11 and the absorbent element 50 it may be provided between the liquid-impermeable sheet 11 and the exterior sheet 12, or provided on the outer surface of the exterior sheet 12.
  • it may be provided between the top sheet 30 and the absorbent element 50.
  • the back-side elastic sheet 70 may be provided on the top sheet 30, and in this case, it may be provided on the barrier sheet 62 on both sides in the width direction of the liquid-impermeable sheet 11.
  • the entire back-side stretchable sheet 70 may be provided between the sheet base materials of the exterior sheet 12.
  • Tape-type disposable diapers having the structure shown in FIGS. 1 to 8 were manufactured according to various specifications shown in Table 1, and the following absorption rate test, reverse test, and liquid flow test were conducted. Specifications not shown in the table and below are common to all examples.
  • “dt” means dtex
  • “PE / PP” and “PE / PET” in the nonwoven fabric used for the top sheet and the intermediate sheet are sheath-core type with the former as the sheath and the latter as the core, respectively.
  • Bicomponent fibers are meant, and the blending ratio of those using two or more kinds of fibers means weight ratio.
  • the weight of the filter paper before and after that is measured, and the weight obtained by subtracting the weight of the filter paper before the test from the weight of the filter paper after the test is defined as the reversal amount.
  • Liquid flow test (1) A sample was spread on a 15-degree inclined plate and fixed so that the surface sheet was on top. At this time, the sample was disposed such that the ventral side of the sample was positioned on the upper side in the tilt direction of the tilt plate, and the back side was positioned on the lower side in the tilt direction of the tilt plate.
  • test results are shown in Table 1. As shown in the table, in Examples 1 to 7 according to the present invention, superior test results were obtained as compared with the conventional example.
  • the present invention can be applied to a wide range of uses such as pants-type, tape-type, or pad-type absorbent articles.
  • SYMBOLS 11 Liquid impervious sheet, 12 ... Exterior sheet, 30 ... Surface sheet, 40 ... Intermediate sheet, 50 ... Absorbing element, 51 ... Absorbing element recessed part, 52 ... Absorbing element convex part, 53 ... Space, 56 ... Absorber, 58 ... Packaging sheet, 60 ... Side barrier cuff, 62 ... Barrier sheet, 70 ... Back elastic sheet, 74 ... Target sheet, 31 ... Surface sheet recess, 32 ... Surface sheet projection, 33 ... Gap, 41 ... Intermediate sheet Open hole.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

La présente invention concerne un article absorbant jetable qui absorbe des excreta de viscosité élevée telles que des selles liquides rapidement sans perdre la capacité à absorber des excreta de faible viscosité. La couche de surface (30) est constituée de textile non-tissé qui comprend des dépressions et des saillies multiples (31) et (32) sur la surface qui est en contact avec la peau et où la densité de fibres augmente vers le bas des dépressions (31). La couche intermédiaire (40) est constituée de textile non-tissé et l'élément absorbant (50) a des dépressions et des saillies multiples (51) et (52) sur la surface et la densité de fibre augmente vers le fond des dépressions (51). Les couches sont disposées de sorte que les saillies (32) de la couche de surface (30) recouvrent des dépressions (51) de l'élément absorbant (50). Les fonds des dépressions (31) de la couche de surface (30) et la couche intermédiaire (40), et la couche intermédiaire (40) et les sommets des saillies (52) de l'élément absorbant (50) sont respectivement fixés. Des espaces (53) sont formés entre la surface arrière de la couche intermédiaire (40) et les fonds des dépressions (51) de l'élément absorbant (50).
PCT/JP2011/060391 2010-05-10 2011-04-28 Article absorbant jetable WO2011142272A1 (fr)

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JP2010-108824 2010-05-10
JP2010108824A JP5543268B2 (ja) 2010-05-10 2010-05-10 使い捨て吸収性物品

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JP2013169388A (ja) * 2012-02-22 2013-09-02 Oji Nepia Co Ltd 吸収性物品及び吸収性物品の製造方法
AU2013348986B2 (en) * 2012-11-20 2016-11-24 Unicharm Corporation Absorbent article
CN106061449A (zh) * 2014-03-27 2016-10-26 大王制纸株式会社 吸收性物品的制造方法和吸收性物品
EP3123993A4 (fr) * 2014-03-27 2017-10-18 Daio Paper Corporation Procédé de production d'un article absorbant et article absorbant
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US10076898B2 (en) 2014-09-12 2018-09-18 The Procter & Gamble Company Apparatus having forming members with surface texture for making nonwoven material having discrete three-dimensional deformations with wide base openings
US10500826B2 (en) 2014-09-12 2019-12-10 The Procter & Gamble Company Method of making nonwoven material having discrete three-dimensional deformations with wide base openings
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US10105268B2 (en) 2014-09-12 2018-10-23 The Procter & Gamble Company Nonwoven material having discrete three-dimensional deformations with differential opacity regions
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US10226385B2 (en) 2014-09-12 2019-03-12 The Procter & Gamble Company Process for making an absorbent article comprising a topsheet/acquisition layer laminate
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CN112367954A (zh) * 2018-06-29 2021-02-12 尤妮佳股份有限公司 吸收性物品
WO2020004457A1 (fr) * 2018-06-29 2020-01-02 ユニ・チャーム株式会社 Article absorbant
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