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WO2015129367A1 - Procédé de fabrication de corps absorbant - Google Patents

Procédé de fabrication de corps absorbant Download PDF

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Publication number
WO2015129367A1
WO2015129367A1 PCT/JP2015/052149 JP2015052149W WO2015129367A1 WO 2015129367 A1 WO2015129367 A1 WO 2015129367A1 JP 2015052149 W JP2015052149 W JP 2015052149W WO 2015129367 A1 WO2015129367 A1 WO 2015129367A1
Authority
WO
WIPO (PCT)
Prior art keywords
slit
absorber
absorbent
absorbent body
precursor
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2015/052149
Other languages
English (en)
Japanese (ja)
Inventor
将吾 奥
松永　竜二
康宏 中野
剛大 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Priority to CN201580008713.5A priority Critical patent/CN106029025B/zh
Publication of WO2015129367A1 publication Critical patent/WO2015129367A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15642—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers or pads of fibrous material on single sheets or webs
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • 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
    • A61F13/531—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 a homogeneous composition through the thickness of the pad
    • A61F13/532—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
    • 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
    • A61F13/53409—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 having a folded core

Definitions

  • This invention relates to the manufacturing method of the absorber used for an absorbent article.
  • Patent Document 1 describes an absorber in which a large number of through holes penetrating the back surface are formed on the absorber surface.
  • the absorber surface is formed by disposing a hole forming roll having a large number of protrusions on the roll surface and an anvil roll having a recess at a position corresponding to the protrusions, and allowing the absorber to pass between both rolls. It is manufactured by forming a through-hole.
  • Patent Document 2 an elastic body that is fixed to the absorber side in the central region in the short direction of the product and applies a contracting force with respect to the arrangement direction, and an absorber in the vicinity of a region where the contracting action of the elastic body works.
  • Absorbent products having slits formed are described.
  • This slit uses a roller cutter provided with blades arranged parallel to each other on the outer periphery of the roller, or is provided with blades arranged non-parallel so as to approach and separate from each other on the outer periphery of the roller. It is formed by using a roller cutter.
  • the present invention is a method for producing an absorber having a slit by making an incision in the thickness direction of the absorber precursor while conveying the absorber precursor in one direction.
  • the absorber precursor is sandwiched between a cutter roll having a cutting blade on the peripheral surface and an anvil roll that receives the cutting blade of the cutter roll, and the absorber is cut along the thickness direction of the absorber precursor.
  • a softening step of softening the compressed portion by deforming.
  • FIG.1 (a) is a top view which shows the skin opposing surface side (surface sheet side) of the sanitary napkin as an example of the absorbent article provided with the absorber manufactured according to this invention
  • FIG.1 (b) FIG. 3 is an extraction plan view showing only the absorbent body of the sanitary napkin.
  • FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG.
  • FIG. 3 is a perspective view schematically showing an apparatus used for manufacturing the absorbent body shown in FIG.
  • FIG. 4 is an enlarged cross-sectional view showing the main part of the cutter roll in the apparatus shown in FIG.
  • FIG. 5 is a schematic view of the apparatus shown in FIG. 3 as viewed from the side.
  • FIG. 6 is a schematic diagram (corresponding to FIG.
  • FIG. 8A to FIG. 8D are schematic views showing the arrangement of the winding portions of the bending means in the embodiment.
  • the present inventors use a slitting device having a cutter roll having a cutting blade on the peripheral surface and an anvil roll that receives the cutting blade of the cutter roll to push the slit into the absorber. It was found that when the width of the cutting blade is widened from the viewpoint of durability or the like, a compressed portion is easily formed around the slit. If such a compressed portion exists around the slit of the absorbent body, the rigidity around the slit increases, and the advantages of providing the slit in the absorbent body may not be fully exhibited.
  • an object of the present invention relates to an absorber manufacturing method and a manufacturing apparatus that can eliminate the above-described drawbacks of the prior art.
  • the sanitary napkin 1 which is an example of the absorbent article which has the absorber manufactured by this invention is demonstrated.
  • the sanitary napkin 1 includes a liquid-retaining absorbent body 4, a surface sheet 2 disposed on the skin facing surface side of the absorbent body 4, and a non-skin facing surface of the absorbent body 4. It has an absorptive main body 5 having a back sheet 3 disposed on the side, and has a longitudinal direction X corresponding to the wearer's front-rear direction and a lateral direction Y orthogonal thereto.
  • a skin opposing surface is a surface which faces a wearer's skin side at the time of wear of an absorbent article in an absorbent article or its structural member (for example, absorbent main body 5), and is a non-skin opposing surface Is the surface of the absorbent article or its component that is directed to the side opposite to the skin side (clothing side) when the absorbent article is worn.
  • the longitudinal direction X coincides with the longitudinal direction of the absorbent article (absorbent body, absorbent body), and the lateral direction Y is perpendicular to the width direction (longitudinal direction) of the absorbent article (absorbent body, absorbent body).
  • the absorptive main body 5 is disposed on the abdomen (front side) of the wearer relative to the excretion part facing part B disposed opposite to the wearer's liquid excretion part (such as the vaginal opening) when worn and the excretion part facing part B when worn.
  • the front portion A and the rear portion C arranged on the back side (rear side) of the wearer rather than the excretory portion facing portion B at the time of wearing are provided in the vertical direction X.
  • the napkin 1 further includes a pair of wing portions 7, 7 extending outward in the lateral direction Y from both side portions along the vertical direction X of the excretory portion facing portion B of the absorbent main body 5. have.
  • the top sheet 2 covers the whole area of the skin-facing surface of the absorbent body 4 and further extends outward in the lateral direction Y from both side edges along the longitudinal direction X of the absorbent body 4.
  • the back sheet 3 covers the entire area of the non-skin facing surface of the absorbent body 4 and further extends outward in the lateral direction Y from both side edges along the longitudinal direction X of the absorbent body 4 to be described later.
  • a side flap portion 6 is formed.
  • the back sheet 3 and the side sheet 10 are joined to each other by known joining means such as an adhesive, heat seal, ultrasonic seal, and the like at the extended portions from both side edges along the longitudinal direction X of the absorber 4.
  • the top sheet 2 and the back sheet 3 may be bonded to the absorber 4 with an adhesive.
  • the absorbent body 4 has a laminated structure in which a main body absorbent sheet 401 and a central absorbent sheet 402 are laminated as shown in FIG. 2, and as shown in FIGS. B has a multilayer portion 42.
  • the multilayer part 42 is a part where the number of laminated absorbent sheets 401 and 402 constituting the absorbent body 4 is larger than the part located around the multilayered part 42.
  • the multilayer part 42 in this embodiment is thicker than the part located in the circumference
  • the absorbent body 4 includes a main absorbent body 40 that forms the outer shape of the absorbent body 4, and an auxiliary absorbent body 41 that is smaller than the main absorbent body 40 that is arranged on a part of the main absorbent body 40. Yes.
  • the auxiliary absorber 41 is located at least in the excretory part facing part B.
  • the absorbent body 4 is preferably composed only of a laminated structure of absorbent sheets 401 and 402.
  • the absorbent body 4 has a thin thickness, a high absorbent capacity, stability of folding processing, and freedom of shape deformation. From the point of view, it is preferable to use an absorbent sheet in which particles of a superabsorbent polymer are held between fiber layers.
  • the main absorbent body 40 has a folded structure of a main body absorbent sheet 401 containing pulp. Specifically, the main absorbent body 40 is formed by folding the main body absorbent sheet 401 inwardly at positions of folding lines 401 a and 401 b extending along the vertical direction X. That is, the main body absorbent sheet 401 is folded at both ends. At this time, the positions of the folding lines 401a and 401b are adjusted so that the inwardly folded portions of the main body absorbent sheet 401 partially overlap each other. Therefore, the main absorbent body 40 has a laminated structure of two layers and three layers made of the main body absorbent sheet 401.
  • the auxiliary absorbent body 41 has a folded structure of the central absorbent sheet 402 containing pulp. Specifically, the auxiliary absorbent body 41 folds the central absorbent sheet 402 inward along a fold line 402a extending along the longitudinal direction X at a portion located outward from the fold line 402a. Next, along the fold line 402b, the part located outward from the fold line 402b is folded inward toward the part that is folded first.
  • the fold lines 402a and 402b are formed at positions that divide the length in the lateral direction Y of the central absorbent sheet 402 into approximately three equal parts. As a result, the central absorbent sheet 402 is in a folded state with three windings. Therefore, the auxiliary absorbent body 41 has a three-layer structure composed of the central absorbent sheet 402.
  • the central absorbent sheet 402 that is in a folded state with three windings is disposed inside the main body absorbent sheet 401 that is in a folded state with both ends folded. That is, the main body absorbent sheet 401 and the central absorbent sheet 402 have a nested folding structure. As a result, in the laminated structure of the main body absorbent sheet 401 and the central absorbent sheet 402, it extends outward from at least a part of the peripheral edge of the central absorbent sheet 402, specifically from the entire region of the peripheral edge. A main body absorbent sheet 401 is laminated.
  • the center absorbent sheet 402 which comprises this auxiliary
  • Each layer of the absorbent sheet laminated in five layers in the multilayer portion 42 and three layers in the portions other than the multilayer portion 42 is an “absorbent layer” in the present invention.
  • the main absorbent body 40 having a folded structure of the main body absorbent sheet 401 has a substantially rectangular shape with rounded corners in plan view, and extends from the front part A to the rear part C via the excretory part facing part B.
  • the auxiliary absorbent body 41 having a folded structure of the central absorbent sheet 402 has a substantially rectangular shape in plan view, and is arranged from the excretory part facing part B to the rear part C in the vicinity thereof.
  • the auxiliary absorbent body 41 is laminated on the skin facing surface side of the main body absorbent sheet 401 constituting the main absorbent body 40, instead of being disposed inside the main absorbent body 40 composed of the folded main body absorbent sheet 401. Alternatively, it may be laminated on the non-skin facing surface side.
  • a pair of side sheets 10, 10 are arranged over substantially the entire length in the longitudinal direction X of the absorbent main body 5.
  • the pair of side sheets 10 and 10 are each a linear first joining line 11 located in the excretory part facing part B, and the longitudinal direction X of the first joining line 11 (front part A and rear part C). It joins to the absorptive main body 5 (surface sheet 2) with the linear 2nd joining line 12 located in this.
  • the first joining line 11 has a curved shape that protrudes outward in the lateral direction Y in plan view
  • the second joining line 12 has a linear shape (zigzag line shape) that extends in the longitudinal direction in plan view.
  • the side sheet 10 is made of a water-repellent nonwoven fabric.
  • the side flap portions 6 project greatly outward in the lateral direction Y at the excretory portion-facing portion B, whereby a pair of side flap portions 6 are provided on both the left and right sides along the longitudinal direction X of the absorbent main body 5.
  • the wing portions 7, 7 are extended.
  • the top sheet 2 and the back sheet 3 extend outward in the longitudinal direction X from the front end and the rear end in the longitudinal direction X of the absorbent body 4.
  • the end seal portion is formed by bonding to each other by a known bonding means such as an agent, heat sealing, ultrasonic sealing or the like.
  • the wing part 7 is used by being folded back to the non-skin facing surface side of the crotch part of clothes such as shorts.
  • the wing portion 7 has a substantially trapezoidal shape in which a lower base (a side longer than the upper base) is positioned on the side of the absorbent main body 5 in a plan view.
  • a wing part adhesive part (not shown) for fixing the wing part 7 (napkin 1) to clothing (not shown) such as shorts is formed.
  • the wing portion 7 that is folded back to the non-skin facing surface (outer surface) side of the crotch portion of the clothes can be adhered and fixed to the crotch portion by the adhesive portion.
  • the main body adhesion part (not shown) for fixing the absorptive main body 5 to clothes, such as shorts, is also formed in the non-skin opposing surface of the absorptive main body 5.
  • the boundary line between the absorbent main body 5 and the wing portion 7 is a straight line (not shown) that connects the roots in the longitudinal direction X of the wing portion 7.
  • the surface sheet 2 and the absorber 4 are dented integrally on the skin opposing surface (skin opposing surface of the surface sheet 2) of the absorptive main body 5 toward the back surface sheet 3 side.
  • the linear groove is formed so as to extend in the horizontal direction Y in the vertical groove 51 extending in the vertical direction X in the excretory part facing part B and in the front part A and the rear part C, respectively.
  • the first and second lateral grooves 52 and 53 are formed.
  • channel can be formed in accordance with a conventional method by embossing, such as a pressing process (what is called embossing) with or without heat (what is called embossing), or ultrasonic embossing.
  • the surface sheet 2 and the absorber 4 are not shown in the figure, but are bonded by an adhesive or integrated by thermal fusion or the like.
  • the absorbent body 4 is formed with a plurality of longitudinal slits 43 along the longitudinal direction X dispersed in the excretory part facing part B.
  • the vertical slits 43 are formed in a state of being distributed in both the vertical direction X and the horizontal direction Y.
  • the vertical slit 43 is formed by cutting the absorber 4 in the thickness direction, and penetrates the laminated structure of the absorbent sheets 401 and 402 constituting the absorber 4. It is preferable.
  • the vertical slits 43 are preferably not formed in the top sheet 2 and the back sheet 3 disposed above and below the absorber 4.
  • Each vertical slit 43 is individually independent, and a non-slit portion 43 ′ is located between adjacent vertical slits 43.
  • Each vertical slit 43 is surrounded by a non-slit portion 43 ′ around the entire periphery.
  • the vertical slit 43 is formed by cutting the absorber 4 in the thickness direction, and is formed from a cut having substantially no width, or preferably 1.5 mm. It has the following narrow space.
  • the width means the length of the vertical slit 43 in a direction orthogonal to the direction in which the vertical slit 43 extends.
  • the absorbent body 4 has a plurality of rear slits 45 extending in the rear part C located behind the excretory part facing part B so as to have a longitudinal direction in a direction intersecting the longitudinal direction X of the napkin 1.
  • the rear slit 45 is a plane in which the position of the central portion 45a in the longitudinal direction of the slit 45 is located on the front portion A side with respect to the positions of both end portions 45b and 45b in the longitudinal direction. It has a view shape, and more preferably has a plan view shape that is convexly curved toward the front portion A side.
  • the back slit 45 is formed in multiple numbers at intervals in the longitudinal direction X of the absorbent article.
  • FIG. 3 schematically shows an apparatus for manufacturing the absorbent body 4 in the sanitary napkin 1 described above.
  • the absorbent body of the sanitary napkin 1 described above or the slit forming step using the cutting device 60 and the softening step using the softening means 70 are used.
  • the continuous body 4 is manufactured.
  • the cutting device 60 used in the slit forming step includes a cutter roll 61 having cutting blades 63 and 64 on the peripheral surface, and an anvil roll 62 that receives the cutting blades 63 and 64 of the cutter roll 61.
  • the cutting blades 63 are cutting blades for forming the vertical slits 43, and a plurality of cutting blades 63 are formed in the circumferential direction and the axial length direction of the cutter roll 61.
  • the cutting blade 64 is a cutting blade for forming the rear slit 45, and a plurality of cutting blades 64 are formed at intervals in the circumferential direction of the cutter roll 61.
  • the cutter roll 61 and the anvil roll 62 are arranged so that their axial centers 61 'and 62' are parallel to each other. A clearance is provided between the cutter roll 61 and the anvil roll 62, or both rolls are in contact with each other.
  • the cutting blades 63 and 64 positioned on the peripheral surface of the cutter roll 61 are formed and arranged so as to coincide with the shape and arrangement of the slits 43 and 45 formed in the target absorbent body 4.
  • An absorber precursor 4a (hereinafter also referred to as “precursor 4a” for the sake of simplicity), which is a precursor of an absorbent body having a laminated structure of a main body absorbent sheet and a central absorbent sheet, is shown by an arrow R in FIG. And is supplied between the cutter roll 61 and the anvil roll 62 in the cutting device 60.
  • the state of the cross section in the thickness direction of the precursor 4a before being supplied between the two rolls 61 and 62 is shown in a circle indicated by I in FIG. In the precursor 4a before being supplied between the two rolls 61 and 62, the absorbent sheets 401 and 402 are not joined.
  • the cutting blade 63 provided on the peripheral surface of the cutter roll 61 by the sandwiching pressure by the both rolls 61 and 62 extends along the thickness direction of the precursor 4a. Proceeds into the precursor 4a. Thereby, the vertical slit 43 and the back slit 45 are formed in the precursor 4a.
  • the state of the cross section in the thickness direction of the precursor 4a after the vertical slit 43 is formed is shown in a circle indicated by II in FIG.
  • the respective absorbent sheets 401 and 402 are consolidated due to the progress of the cutting blade 63, so that the absorbent sheets 401 and 402 (absorption absorbed) stacked around the vertical slit 43.
  • a pressure-bonding portion 43a (squeezed portion) between the layers is formed.
  • a crimping part 43a (pressing part) in which the laminated absorbent sheets 401 and 402 (absorbing layers) are crimped is also formed around the rear slit 45.
  • surroundings may have the crimping
  • FIG. 4 shows an enlarged cross-sectional view of the tip portion of the cutting blade 63 provided in the cutter roll 61.
  • the left-right direction of the paper surface in the figure coincides with the axial direction of the cutter roll 61.
  • the direction orthogonal to the paper surface in the figure is a direction parallel to the conveyance direction of the precursor 4a.
  • the cutting blade 63 has its tip angle changed in two stages. Specifically, the cutting blade 63 forms a first tip angle ⁇ 1 by two hypotenuses L1, L1 at the most tip position. Further, the cutting blade 63 is at a position slightly closer to the base from the position of the most distal end (above the cutting blade 63 in FIG.
  • the first tip angle ⁇ 1 is larger than the second tip angle ⁇ 2.
  • the first tip angle ⁇ 1 is preferably 40 degrees or more, particularly 60 degrees or more, and preferably 100 degrees or less, particularly 90 degrees or less.
  • the first tip angle ⁇ 1 is preferably 40 degrees or more and 100 degrees or less, and particularly preferably 60 degrees or more and 90 degrees or less.
  • the second tip angle ⁇ 2 is smaller than the first tip angle ⁇ 1, it is preferably 30 degrees or more, particularly 50 degrees or more, and preferably 90 degrees or less, particularly 70 degrees or less.
  • the second tip angle ⁇ 2 is preferably 30 degrees or greater and 90 degrees or less, and particularly preferably 50 degrees or greater and 70 degrees or less.
  • the absorber precursor 4 ′ in which the slits 43 and 45 are formed in the slit forming process (hereinafter, also referred to as “precursor with slit 4 ′” for the sake of simplicity).
  • the softening process is performed using the softening means 70 including one roll 71 (winding portion).
  • the 1st roll 71 is a winding part which can wind the precursor 4 'with a slit.
  • “winding” means that the precursor 4 ′ with slit is not in contact with the first roll 71 at a point when viewed from the axial direction of the first roll 71, but on the peripheral surface of the first roll 71. A state of contact along the line. That is, it means that the precursor 4 ′ with slit is conveyed to the first roll 71 while having a certain holding angle.
  • the softening means 70 in the present embodiment includes, in addition to the first roll 71, a second roll 72 disposed on the upstream side in the conveying direction of the precursor 4 ′ with slit. And a third roll 73 disposed on the downstream side in the transport direction.
  • the first to third rolls 71 to 73 are arranged such that their axis centers 71 ′, 72 ′, and 73 ′ are parallel to each other. Further, a clearance is provided between the first roll 71 and the second roll 72, and a clearance is also provided between the second roll 72 and the third roll 73.
  • Each of the first to third rolls is a flat roll having a flat surface.
  • the first roll 71 is disposed so that a part of the first roll 71 enters the space between the second roll 72 and the third roll 73, and more specifically, the lower half of the roll 71. Has entered.
  • transformed into circular arc shape other than a roll are mentioned.
  • the slitted precursor 4 ′ to be softened by the softening means 70 is transported by a known transport means (not shown) such as a belt conveyor, and as shown in FIG. After being introduced onto the circumferential surface of the first roll 71 and then onto the circumferential surface of the third roll 73, the circumferential surface of the third roll 73. Then, it is transferred to a known conveying means (not shown) such as a belt conveyor and further conveyed downstream. As shown in FIG. 5, the slit-attached precursor 4 ′ is deformed into a circular arc shape that is convex toward the first surface “a” on the peripheral surface of the second roll 72.
  • the slitted precursor 4 ′ passes through the first to third rolls 71 to 73 while being deformed into a shape along the peripheral surfaces of the first to third rolls 71 to 73.
  • the first to third rolls 71 to 73 themselves may be drive rolls provided with drive means (not shown) such as a servo motor, or may be free rolls that do not have drive. good.
  • a drive roll (not shown) is provided in the immediate vicinity of the downstream side of the third roll 73 so that the transportability of the slitted precursor 4 ′ is not impaired by the winding by the first to third rolls 71 to 73.
  • a circle indicated by III represents the state of the cross section in the thickness direction of the absorbent body 4 after the flexible processing by the first to third rolls 71 to 73.
  • the precursor 4 ′ with slit is conveyed while being sequentially deformed into shapes along the peripheral surfaces of the second roll 72, the first roll 73, and the third roll 73.
  • the absorbent sheets 401 and 402 (absorbing layers) that have been bonded to each other are peeled off and separated, and the absorbent sheets 401 and 402 return to the non-bonded state before the slit is formed.
  • the continuous body 4 of the target absorbent body in which the crimping part 43a (pressing part) formed around the slits 43 and 45 is softened can be successfully obtained.
  • the continuous body 4 of the absorbent body is cut to the size of the absorbent body of the individual absorbent article by a known cutting means to become the absorbent body 4 having the dimensions of the absorbent body of the sanitary napkin 1 described above.
  • the first surface a is a surface located on the cutter roll 61 side during slit formation
  • the second surface b is a surface located on the anvil roll 62 side during slit formation. is there.
  • the winding portion of the bending means used in the present invention may be such that, as with the first roll 71, the precursor 4 ′ with slit is curved toward the first surface a side, and the second and second 3, the slit precursor 4 ′ may be curved to the second surface b side, but the bending means used in the present invention is the slit precursor 4 ′.
  • a roll (winding portion) that is bent toward the first surface a side and a roll (winding portion) that is bent toward the second surface b side and the bending processing means 70 used in this embodiment.
  • a total of three rolls that is, two rolls (winding portions) that bend the precursor 4 ′ with slits to the one surface a side and one roll (winding portion) that bends to the other surface b side. More preferably, the above rolls are provided.
  • the precursor 4 ′ with slit in the portion delivered from the second roll 72 to the first roll 71, has a cross-sectional shape along the transport direction R. Even in a portion that is bent so as to form an S shape and is transferred from the first roll 71 to the third roll 73, the cross-sectional shape of the precursor 4 ′ with slits along the transport direction R is S. It is bent to form a letter shape.
  • the slit precursor 4 ′ is preferably bent so that a length of 100 cm or less in the conveying direction forms an S shape in a portion that is transferred from roll to roll. Note that the S-shape referred to in this specification includes an inverted S-shape in which left and right are reversed.
  • the holding angle ⁇ 11 of the first roll 71 having the largest holding angle of the precursor 4 ′ with slit is preferably 10 degrees or more, more preferably 40 degrees or more. Also, it is preferably 180 degrees or less, more preferably 90 degrees or less, and preferably 10 degrees or more and 180 degrees or less, more preferably 40 degrees or more and 90 degrees or less.
  • the holding angle of the precursor 4 ′ with slit in the first roll 71 is the cross section obtained by cutting the first roll 71 and the precursor 4 ′ with slit in a plane orthogonal to the axis 71 ′ of the roll.
  • the radius of the first roll 71 is preferably 10 mm or more, more preferably 15 mm or more, preferably 50 mm or less, more preferably 20 mm or less, and preferably 10 mm or more and 50 mm or less, more preferably It is 15 mm or more and 20 mm or less.
  • Each of the second roll 72 and the third roll 73 has a holding angle ⁇ 12, ⁇ 13 of the precursor 4 ′ with a slit of preferably 10 degrees or more, more preferably 20 degrees or more, and preferably 180 degrees. Hereinafter, it is more preferably 45 degrees or less, preferably 10 degrees or more and 180 degrees or less, more preferably 20 degrees or more and 45 degrees or less.
  • the second roll 71 and the third roll 73 each have a radius of preferably 10 mm or more, more preferably 15 mm or more, and preferably 50 mm or less, more preferably 20 mm or less. Is from 10 mm to 50 mm, more preferably from 15 mm to 20 mm.
  • the first to third rolls 71 to 73 have a radius of at least one roll in the conveying direction of the slit-formed precursor 4 ′ from the viewpoint of softening the compressed portion around the slit 43.
  • the radius of two or more rolls is preferably 4 times or less of the length of the slit 43, and the radius of all the rolls is less than 4 times the length of the slit 43.
  • the length is preferably 4 times or less of the length.
  • the length of the slit here is the total length in the longitudinal direction of the slit when the slit is formed in parallel with the transport direction like the slit 43 shown in FIG. 3, and the slit is parallel to the transport direction. If it is not formed, the length in the conveyance direction between the front edge and the rear edge of the slit in the conveyance direction is set.
  • the slit to be softened in the softening step has a length in the transport direction defined as described above of preferably 2 mm or more, more preferably 5 mm or more, and preferably 100 mm or less, more preferably 50 mm or less, Further, it is preferably 2 mm or more and 100 mm or less, more preferably 5 mm or more and 50 mm or less. Note that the radius of curvature when the winding portion is a cylindrical roll is the same as the radius of the roll.
  • the winding portion is not a roll
  • the winding portion is a portion of the belt conveyor that is bent by the roll and deformed into a cross-section arc shape
  • the belt deformed into the cross-section arc shape it is preferable that the curvature radius of is 4 times or less the length in the conveyance direction of the precursor 4 ′ with slit.
  • the softening process in the present invention can provide a further excellent softening effect for the slits formed in a straight line extending in the transport direction.
  • FIG. 6 is a diagram showing another embodiment of the present invention.
  • the cutter roll 81 having the cutting blade 83 is formed after the slit precursor 4 ′ is formed from the absorber precursor 4 ⁇ / b> A using the cutting device 60 having the same configuration as the cutting device 60 described above.
  • an anvil roll 82 that receives the cutter blade 83 of the cutter roll, the slit-cured precursor 4 'is cut into the size of each absorber 4 and the single-wafer slit-cured precursor 4 is cut.
  • the first bend processing means 70A provided with a transfer roll 75 (winding portion) provided with a suction hole on the outer peripheral surface thereof is used for the single-wafer slit precursor 4 ′.
  • the transfer roll 75 is separated from the outer peripheral surface in a range P3 from a position in front of the receiving portion P1 of the sheet precursor 4 ′ with slit to a position exceeding the delivery portion P2 to the belt conveyor 79. Suction is possible.
  • the sheet-shaped slit precursor 4 ′ is deformed into a shape along the peripheral surface of the transfer roll 75 while performing suction from the outer peripheral surface. Also with the precursor 4 ′, it is possible to efficiently soften the pressure-bonding portion 43a (squeezing portion) around the slit while preventing the precursor 4 ′ with slit from lifting from the outer peripheral surface of the roll.
  • the continuous sheet 76 having a strip shape is joined to the sheet-formed precursor 4 ′, and then the continuous sheet 76.
  • a second softening process is performed using the second bending means 70B on the laminated body 77 composed of the sheet-shaped precursor 4 ′ with slits intermittently arranged on one side of the continuous sheet 76. ing.
  • the second bending means 70B has the same configuration as the bending means 70 described above, except that the first roll 71A includes a suction mechanism. A plurality of suction holes are opened on the peripheral surface of the first roll 71A, and portions other than the opening are flat.
  • the first roll 71A has an intake passage that communicates the opening on the circumferential surface with the opening provided on the side surface, and the opening provided on the side surface and an arcuate suction device disposed opposite to the side surface While the two are overlapped, suction from the peripheral surface is performed. Also in the second softening step by the second bending means 70B, the laminated body 77 is shaped along the peripheral surface of the first roll 71A while performing suction from the peripheral surface of the first roll 71A. By deforming to the above, it is possible to efficiently soften the pressure-bonding portion 43a (pressing portion) around the slit in the single-sheet precursor 4 ′ with slit included in the laminate 77.
  • the slitting precursor 4 ′ is subjected to the softening step by the front end and the rear end in the conveying direction R of the sheet precursor 4 ′ with slits, and the cutting blade 64.
  • the attached rear slit 45 has an advantage of suppressing processing defects such as phase shift, bending, and kinking due to being caught by the second bending processing means 70B.
  • the suction range P4 of the first roll 71A is the same as the contact range of the precursor 4 ′ with slit, and it is possible to suck and hold only while the laminated body 77 is bent on the first roll 71A. This is preferable from the viewpoint of preventing the attached precursor 4 'from being lifted.
  • belt-shaped continuous sheet 76 the sheet
  • belt-shaped original fabric of the surface sheet which consists of a nonwoven fabric which has air permeability can be used.
  • the top sheet 2 and the back sheet 3 various materials conventionally used in the technical field can be used without any particular limitation.
  • the surface sheet 2 for example, liquid permeable sheets such as various nonwoven fabrics and perforated films subjected to a hydrophilic treatment can be used.
  • a liquid-impermeable material or a water-repellent material can be used.
  • the liquid-impermeable material a resin film, a resin film having fine pores and moisture permeability, a laminate material of a resin film and a nonwoven fabric, and the like can be used.
  • a superabsorbent polymer is sprayed on wet paper or nonwoven fabric, and the paper or nonwoven fabric is superimposed thereon, and then dried and integrated.
  • an absorbent sheet for example, an absorbent sheet described in JP-A-8-246395 can be used.
  • This absorbent sheet can be cut into a predetermined shape and used as a sheet-like absorber.
  • the thickness per absorbent sheet is preferably 0.1 mm or more, particularly 0.3 mm or more, and preferably 2 mm or less, particularly 1.5 mm or less. More specifically, it is preferably 0.1 mm or more and 2 mm or less, particularly preferably 0.3 mm or more and 1.5 mm or less.
  • the napkin 1 may not have the wing part 7.
  • you may have a back flap part which spreads and fixes to the inner surface of shorts in the both sides in the back part of the absorptive main body 5.
  • FIG. Further, only the longitudinal slit 43 may be formed in the absorber without forming the rear slit 45. Moreover, in the manufacturing method of the absorber shown in FIG.
  • the 1st softening process using the transfer roll 75 may be abbreviate
  • the second softening step may be omitted.
  • a slit inclined with respect to both the transport direction and the direction perpendicular thereto may be formed.
  • the absorber manufactured does not have the multilayer part 42, but the lamination
  • the number of laminated absorbent sheets in the multilayer portion 42 in the case where the multilayer portion 42 is provided is not limited to the number shown in FIG. 2, and the difference in the number of laminated absorbent sheets between the multilayer portion 42 and other portions is also illustrated. It is not limited to the number shown in 2.
  • the main body absorbent sheet 401 and the central absorbent sheet 402 constituting the absorbent body 4 are each folded to form a laminated structure composed of a plurality of layers.
  • a laminate of a plurality of absorbent sheets may be used.
  • the absorbent sheet can be folded in various ways.
  • the auxiliary absorbent body 41 has the central absorbent sheet 402 folded as shown in FIGS. 8 (a) to 8 (d). It may be folded.
  • the absorbent body to be manufactured in the present invention is not limited to such a form, and may be another form, for example, a pile pile of pulp fibers and a water-absorbing polymer. In this case, by passing through the first and / or second softening step, the pulp fibers in the crimping portion 43 are peeled apart and separated, and the distance between the pulp fibers is widened to obtain the effect of softening. .
  • this invention absorbs absorbers, such as a disposable diaper, an incontinence pad, a panty liner, etc. of other absorbent articles. The same applies to the manufacture of the body.
  • This invention discloses the manufacturing method and manufacturing apparatus of the following absorber further regarding embodiment mentioned above.
  • ⁇ 1> While conveying the absorber precursor in one direction, making a cut in the thickness direction of the absorber precursor, and manufacturing a absorber having a slit, The absorber precursor is sandwiched between a cutter roll having a cutting blade on the peripheral surface and an anvil roll that receives the cutting blade of the cutter roll, and the absorber is cut along the thickness direction of the absorber precursor.
  • the manufacturing method of an absorber which comprises the softening process which softens the said crimping
  • the absorber has a laminated structure having a plurality of absorption layers, In the slit forming step, as the pressure-bonding portion, a pressure-bonding portion in which a plurality of absorption layers are pressure-bonded is formed.
  • the softening step at least one absorption layer in the pressure-bonding portion is separated, and the pressure-bonding portion.
  • the bending means includes at least one roll as the winding portion, and the holding angle of the absorber precursor in which the slit is formed is 10 degrees or more and 180 degrees or less.
  • the winding portion has a plurality of suction holes on the surface, and deforms the absorber precursor in which the slit is formed while being held on the surface by suction. ⁇ 1> to ⁇ 3> The manufacturing method of the absorber of description.
  • the bending means includes a plurality of the winding portions and bends the absorber precursor in which the slit is formed into an S-shaped cross section.
  • the absorber precursor or the absorber has a multilayer portion at a portion disposed in the excretory portion facing portion of the absorbent article, and the multilayer portion is the number of laminated absorbent sheets constituting the absorber.
  • the multilayer portion is thicker than the portion located around it, and forms a raised portion that protrudes toward the topsheet side of the absorbent article at a portion disposed in the excretory part facing portion of the absorbent article.
  • ⁇ 8> The method for producing an absorbent body according to any one of ⁇ 1> to ⁇ 7>, wherein the absorbent body is composed only of a laminated structure of absorbent sheets.
  • the absorber precursor or the absorber is composed of an absorbent sheet having a single layer or a multilayer structure, and the absorbent sheet sprays a superabsorbent polymer on wet paper or non-woven fabric, on which paper
  • ⁇ 11> In the absorbent body precursor or the absorbent body, a plurality of longitudinal slits along the longitudinal direction X of the absorbent article are formed in a dispersed state at a portion disposed in the excretory part facing portion of the absorbent article. ⁇ 1>- ⁇ 10> The manufacturing method of the absorber as described in any one of ⁇ 10>. ⁇ 12> In the absorbent body precursor or the absorbent body, longitudinal slits along the longitudinal direction X of the absorbent article are formed in a state dispersed in both the longitudinal direction X and the transverse direction Y of the absorbent article, ⁇ 1> to ⁇ 10 The manufacturing method of the absorber of any one of>.
  • a longitudinal slit along the longitudinal direction X of the absorbent article is formed by cutting the absorber precursor in the thickness direction, and the longitudinal slit penetrates the laminated structure of the absorbent sheet constituting the absorber.
  • a plurality of longitudinal slits along the longitudinal direction X of the absorbent article are formed in the absorber precursor or the absorber, each longitudinal slit is individually independent, and between adjacent longitudinal slits
  • the absorbent body has a plurality of rear slits extending in the rear part located behind the excretory part facing part of the absorbent article so as to have a longitudinal direction in a direction intersecting the longitudinal direction of the absorbent article.
  • the rear slit has a shape in plan view in which the position of the central portion in the longitudinal direction of the slit is located closer to the front portion side of the absorbent article than the positions of both end portions in the longitudinal direction, preferably the front portion side
  • the manufacturing method of the absorber as described in ⁇ 15> which has the shape of planar view curved convex toward the surface.
  • the said back slit is a manufacturing method of the absorber as described in ⁇ 15> or ⁇ 16> currently formed in multiple numbers at intervals in the longitudinal direction X of an absorbent article.
  • the cutting blade has a first tip angle ⁇ 1 formed by two hypotenuses L1, L1 at the most tip position, and is connected to each hypotenuse L1 at a position slightly closer to the base from the tip end position.
  • ⁇ 1> to ⁇ 16> which has a second tip angle ⁇ 2 formed by the hypotenuses L2 and L2, and the first tip angle ⁇ 1 is larger than the second tip angle ⁇ 2.
  • the first tip angle ⁇ 1 is preferably 40 ° or more, particularly preferably 60 ° or more, and is preferably 100 ° or less, particularly preferably 90 ° or less, and the first tip angle ⁇ 1 is 40 ° or more and 100 ° or less,
  • the second tip angle ⁇ 2 is preferably 30 ° or more, particularly 50 ° or more, preferably 90 ° or less, particularly preferably 70 ° or less, provided that the second tip angle ⁇ 2 is smaller than the first tip angle ⁇ 1.
  • the surface located on the cutter roll side at the time of slit formation is the first surface a
  • the surface located on the anvil roll side at the time of slit formation is the second.
  • the bending means includes, as the winding portion, a roll that curves the precursor with slit to the first surface a side, or a roll that curves the second surface b side, Alternatively, the method for producing an absorbent body according to any one of ⁇ 1> to ⁇ 20>, comprising both a roll that is bent toward the first surface a and a roll that is bent toward the second surface b.
  • the precursor with slit which is the absorber precursor forming the slit
  • the surface located on the cutter roll side at the time of slit formation is the first surface a
  • the surface located on the anvil roll side at the time of slit formation is the second.
  • the bending processing means causes the precursor with a slit to bend to one surface side of the first surface a and the second surface b and to bend to the other surface side 1
  • ⁇ 23> The method for producing an absorbent body according to any one of ⁇ 1> to ⁇ 22>, wherein the slit has a length in the transport direction of the absorbent body precursor of 2 mm to 100 mm.
  • ⁇ 24> The method for manufacturing an absorbent body according to any one of ⁇ 1> to ⁇ 23>, wherein a radius of curvature of the winding portion is not more than four times the length of the slit in the transport direction of the absorbent body precursor.
  • ⁇ 25> The absorber according to any one of ⁇ 1> to ⁇ 24>, wherein an inter-axis distance of each roll of the winding portion is not more than four times the length of the slit in the transport direction of the absorber precursor. Manufacturing method.
  • ⁇ 26> The method for producing an absorbent body according to any one of ⁇ 1> to ⁇ 25>, wherein the absorbent body is an absorbent body of an absorbent article.
  • the absorbent article is a sanitary napkin, a disposable diaper, an incontinence pad, or a panty liner.
  • the said slit is not formed in the surface sheet and back surface sheet of an absorbent article which are distribute
  • a method for producing an absorbent article comprising a liquid-retaining absorbent body, a top sheet disposed on the skin facing surface side of the absorbent body, and a back sheet disposed on the non-skin facing surface side of the absorbent body, A method for producing an absorbent article, wherein the absorbent body is produced by the method according to any one of ⁇ 1> to ⁇ 28>.
  • Example 1 Using the following absorbent sheet (absorbing layer) as the absorbent sheets 401 and 402, a strip-shaped absorber precursor 4a having a cross-sectional structure shown in FIGS. 1 and 2 was produced.
  • the strip-shaped absorber precursor 4a was subjected to the formation of the vertical slits 43 and the softening process for the precursor with slits using the apparatus shown in FIGS. 3 and 5 to obtain an absorber with slits.
  • the diameters of the first to third rolls were all 37 mm, and the arrangement was as shown in Table 1 and FIG.
  • the length of the linear slit 43 extending in the conveying direction of the precursor with slit was 20 mm, and was a length corresponding to 1.08 times the radius (curvature radius) of each roll.
  • Absorbent sheet Cross-linked cellulose fiber, softwood pulp, and superabsorbent polymer supplied in an air stream were deposited at a weight ratio of 5: 2: 3, and then solidified with PVA (2.4% by weight) as an adhesive A dry sheet was used.
  • the main body absorbent sheet 401 has a basis weight of 75 g / m 2 and a thickness of 0.45 mm
  • the central absorbent sheet 402 has a basis weight of 80 g / m 2 and a thickness of 0.50 mm.
  • the basis weight was measured according to the method described in JIS-P8124, and the thickness was measured according to JIS-P8118: 1998.
  • Example 2 the thickness was measured using a peacock-made desk thickness gauge, and a thickness of 2.5 cm / cm 2 was measured by placing a 5 cm ⁇ 5 cm measuring plate.
  • Example 4 the arrangement of the first to third rolls was changed.
  • Example 4 the arrangement of the first to third rolls and the introduction position of the absorber precursor 4a to the first roll were changed. Except that, an absorber with a slit was obtained in the same manner as in Example 1.
  • Example 2 is shown in Table 1 and FIG. 8B
  • Example 3 is shown in Table 1 and FIG. 8C
  • Example 4 is shown in FIG. 1 and as shown in FIG.
  • the obtained absorbent body with a slit is placed on the support table of the handometer so that the longitudinal center of the multilayer portion of the absorbent body is located at the center of the concave groove, and the absorbent body in the width direction.
  • the bending stiffness when bent was evaluated.
  • an absorber having a flexible slit can be efficiently manufactured.

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

Abstract

L'invention concerne un procédé de fabrication d'un corps absorbant (4) ayant des fentes (43, 45), en raison du fait que ledit corps absorbant possède un précurseur de corps absorbant (4a) transporté dans une direction (R), et des découpes insérées dans la direction de l'épaisseur. Le procédé comprend une étape dans laquelle le précurseur de corps absorbant (4a) est comprimé entre un rouleau de coupe (61) ayant des lames de coupe (63, 64) sur sa surface périphérique et un rouleau d'enclume (62), et des fentes (43, 45) sont formées. Une section comprimée, qui se forme parfois autour des fentes, est rendue flexible par enroulement et déformation du précurseur de corps absorbant (4') ayant les fentes (43, 45) formées à l'intérieur de celui-ci sur une section d'enroulement (71) d'un moyen de courbure (70).
PCT/JP2015/052149 2014-02-28 2015-01-27 Procédé de fabrication de corps absorbant Ceased WO2015129367A1 (fr)

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JP2014039997A JP6359292B2 (ja) 2014-02-28 2014-02-28 吸収体の製造方法
JP2014-039997 2014-02-28

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CN108778207A (zh) * 2016-06-03 2018-11-09 花王株式会社 生理用吸收性物品
WO2020159979A1 (fr) * 2019-01-28 2020-08-06 Attends Healthcare Products, Inc. Articles absorbants ayant des stratifiés absorbants et des feuilles supérieures à faible cisaillement et grande voluminosité
US11672710B2 (en) 2014-02-28 2023-06-13 Attends Healthcare Products, Inc. Absorbent article with multi-layer folded absorbent core
US11744748B2 (en) 2018-05-28 2023-09-05 Attends Healthcare Products, Inc. Dryness layer laminate for absorbent articles
US12303369B2 (en) 2016-12-14 2025-05-20 Attends Healthcare Products, Inc. Absorbent laminates, absorbent cores and disposable articles utilizing the absorbent laminates, and related methods
WO2025142466A1 (fr) * 2023-12-28 2025-07-03 ユニ・チャーム株式会社 Procédé de fabrication d'un article absorbant
US12390376B2 (en) 2018-02-28 2025-08-19 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent cores and methods of manufacture

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JP6990517B2 (ja) * 2017-03-24 2022-01-12 花王株式会社 吸収体

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JP2010142367A (ja) * 2008-12-17 2010-07-01 Kao Corp 吸収性物品
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Publication number Priority date Publication date Assignee Title
US11672710B2 (en) 2014-02-28 2023-06-13 Attends Healthcare Products, Inc. Absorbent article with multi-layer folded absorbent core
CN108778207A (zh) * 2016-06-03 2018-11-09 花王株式会社 生理用吸收性物品
US12303369B2 (en) 2016-12-14 2025-05-20 Attends Healthcare Products, Inc. Absorbent laminates, absorbent cores and disposable articles utilizing the absorbent laminates, and related methods
US12390376B2 (en) 2018-02-28 2025-08-19 Kimberly-Clark Worldwide, Inc. Multi-layer absorbent cores and methods of manufacture
US11744748B2 (en) 2018-05-28 2023-09-05 Attends Healthcare Products, Inc. Dryness layer laminate for absorbent articles
WO2020159979A1 (fr) * 2019-01-28 2020-08-06 Attends Healthcare Products, Inc. Articles absorbants ayant des stratifiés absorbants et des feuilles supérieures à faible cisaillement et grande voluminosité
WO2025142466A1 (fr) * 2023-12-28 2025-07-03 ユニ・チャーム株式会社 Procédé de fabrication d'un article absorbant

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CN106029025A (zh) 2016-10-12

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