WO2017056562A1 - Article d'absorption - Google Patents

Article d'absorption Download PDF

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Publication number
WO2017056562A1
WO2017056562A1 PCT/JP2016/066566 JP2016066566W WO2017056562A1 WO 2017056562 A1 WO2017056562 A1 WO 2017056562A1 JP 2016066566 W JP2016066566 W JP 2016066566W WO 2017056562 A1 WO2017056562 A1 WO 2017056562A1
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WO
WIPO (PCT)
Prior art keywords
region
width direction
liquid
absorbent article
sheet
Prior art date
Application number
PCT/JP2016/066566
Other languages
English (en)
Japanese (ja)
Inventor
太朗 入戸野
俊久 林
隆宏 植田
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201680043841.8A priority Critical patent/CN107920933B/zh
Publication of WO2017056562A1 publication Critical patent/WO2017056562A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
    • 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
    • A61F13/515—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 characterised by the interconnection of the topsheet and the backsheet
    • 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
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to an absorbent article.
  • Patent Document 1 discloses a liquid-permeable surface material that contacts a user's skin and allows permeation of body fluid such as menstrual blood, a leak-proof material that contacts a short and prevents leakage of body fluid, and a surface material. And a liquid-retaining absorbent that is interposed between the leak-proof materials.
  • the surface material covers the skin contact surface side and the side surface side of the absorber, and on the non-skin contact surface side of the absorber, each of the absorber and the leakproof material via a fixing agent. And the surface material are fixed. Therefore, as for the absorber, the skin contact surface side and the side surface side are covered with the surface material, and the non-skin contact surface side is covered with the leak-proof material.
  • both feet are repelled by the surface material covering the side of the absorber. Then, immediately after that, a repulsive force is received from the absorber having a higher rigidity (harder) than the surface material. Therefore, the repulsive force that both feet receive from the absorber cannot be sufficiently relaxed, and the user feels uncomfortable between the groins.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to absorb absorbent articles that can relieve the repulsive force that both feet receive and can suppress a sense of discomfort in the crotch. Is to provide.
  • the main invention for achieving the above object is to provide a liquid absorber that has a longitudinal direction, a width direction, and a thickness direction and that absorbs liquid, and is disposed on the skin side of the absorbent body in the thickness direction.
  • An absorbent article comprising: an absorbent sheet; and a liquid-impermeable sheet disposed on the non-skin side of the absorbent body in the thickness direction, wherein the liquid imbibing in the front region and the rear region in the longitudinal direction is provided.
  • the permeable sheet has a flap portion protruding outward from the outer edge in the width direction in the central region in the longitudinal direction, and the liquid permeable sheet is a bent portion in which both sides in the width direction are bent toward the non-skin side.
  • the bent portion of the liquid permeable sheet and the liquid impermeable sheet are joined by a joining region along the longitudinal direction, and is located on the outermost side in the width direction among the joining regions.
  • the width of the first joining region The direction position is between the bent end of the bent portion and the outer end in the width direction of the absorber, and the front end portion in the width direction of the flap portion is the liquid junction with the first joining region as a starting point.
  • the width of the folded end located on the outermost side in the width direction among the folded portions formed in the flap portion in a state where the flap portion is folded so as to contact the non-skin side surface of the impermeable sheet.
  • the direction position is located between the bent end of the liquid permeable sheet and the outer end of the absorber, and the rigidity at the folded end of the flap portion is the bent of the liquid permeable sheet. It is an absorbent article characterized by being larger than the rigidity at the end and smaller than the rigidity at the outer end of the absorbent body.
  • FIG. 3A is a schematic cross-sectional view taken along the line IIIA-IIIA in FIG. 1, and FIG. 3B is a view showing a state in which the flap portion is folded back in FIG. 3A.
  • FIG. 5A is an explanatory view for explaining a method of measuring the magnitude of the repulsive force from the sample
  • FIG. 5B is a measurement terminal for each of the bent end of the top sheet, the folded end of the flap portion, and the outer end of the absorber. It is the table
  • An absorbent body that has a longitudinal direction, a width direction, and a thickness direction and absorbs liquid; a liquid-permeable sheet disposed on the skin side of the absorbent body in the thickness direction; and the thickness of the absorbent body
  • a liquid-impermeable sheet disposed on the non-skin side of the direction, than an outer edge in the width direction of the liquid-impermeable sheet in the front region and the rear region in the longitudinal direction.
  • An outwardly extending flap portion is provided in the central region in the longitudinal direction, and the liquid-permeable sheet has a bent portion in which both sides in the width direction are bent on the non-skin side, and the liquid-permeable sheet has the bent portion.
  • the bent portion and the liquid-impermeable sheet are joined by the joining region along the longitudinal direction, and the position in the width direction of the first joining region located on the outermost side in the width direction among the joining regions.
  • Is the bent part of the bent part Between the outer edge of the absorbent body and the outer end of the absorbent body in the width direction, and the front end of the flap portion in the width direction is the non-skin side of the liquid-impermeable sheet, with the first joining region as a starting point.
  • the position in the width direction of the folded end located on the outermost side in the width direction among the folded portions formed in the flap portion is the liquid permeability.
  • the rigidity at the folded end of the flap portion is greater than the rigidity at the bent end of the liquid permeable sheet, and An absorbent article that is less than the stiffness at the outer end of the absorbent body will be apparent.
  • the bent portion of the liquid-permeable sheet and the liquid-impermeable sheet are joined by the first joining region in the front region and the rear region, and the central region Are joined by a second joining region along the longitudinal direction, and the second joining region has a total length along the longitudinal direction of the first joining region of the length along the longitudinal direction. It is desirable that the position of the outermost end in the width direction is shorter than the length and is located on the inner side of the position of the innermost end in the width direction of the first bonding region.
  • the flap portion is folded back.
  • the second joining region is unlikely to be the folding start point, and the extension along the longitudinal direction of the first joining region is the folding start point. Since the position of the outermost end in the width direction of the second bonding region is located inside the position of the innermost end in the width direction of the first bonding region, the second bonding region is the flap portion. Does not exist at the starting point. Thereby, when both feet hit the folded portion of the flap portion at the time of wearing, an uncomfortable feeling in the crotch (both feet) due to the adhesive or the like provided in the second joining region is suppressed.
  • the width direction between the second joining region which is a portion that joins the bent portion of the liquid-permeable sheet and the liquid-impermeable sheet, and the bent end of the bent portion. Therefore, the bent portion can be secured in a wider area. Thereby, the freedom degree of the fiber in a bending part increases and the touch becomes good, and the discomfort to the crotch at the time of wear is further suppressed.
  • the position of the outermost end in the width direction of the second bonding region is located inside the position of the outer end of the absorbent body.
  • both feet hit the outer end of the absorber before hitting the second joint region. Therefore, both feet are less likely to hit the second joint region, and a sense of discomfort due to the adhesive or the like provided in the second joint region can be further suppressed.
  • the absorbent article wherein the skin-side surface faces the liquid-permeable sheet and is provided on the skin side of the liquid-impermeable sheet, and the liquid-permeable sheet is at least Bonded by a third bonding region provided between the skin-side surface of the facing member and the liquid-permeable sheet, and at least in the central region, the outermost side in the width direction of the third bonding region It is desirable that the position of the end of the liquid is located inside the position of the bent end of the liquid-permeable sheet.
  • the bent portion can be secured in a wider region.
  • the freedom degree of the fiber in a bending part increases and the touch becomes good, and the discomfort to the crotch (both legs) by the adhesive etc. which were provided in the 3rd junction area at the time of wear is controlled.
  • the position of the outermost end in the width direction of the third bonding region is inside the position of the innermost end in the width direction of the first bonding region. It is desirable to be located at.
  • the position of the outermost end in the width direction of the third joint region is located inside the position of the innermost end in the width direction of the first joint region. Therefore, the third joining region does not exist at the folding start point of the flap portion. Thereby, when both feet hit the folded portion of the flap portion at the time of wearing, an uncomfortable feeling in the crotch (both feet) due to an adhesive or the like provided in the third joint region is suppressed.
  • the non-skin-side surface of the liquid-impermeable sheet is provided with a fixing region for fixing to a fixed member, and at least in the central region, the fixing region It is desirable that the position of the outermost end in the width direction is located inside the position of the innermost end in the width direction of the first bonding region.
  • the position of the outermost end in the width direction of the fixed region is located inside the position of the innermost end in the width direction of the first joint region. Therefore, the fixed region does not exist at the folding start point of the flap portion. Thereby, when both feet hit the folded portion of the flap portion at the time of wearing, discomfort to the crotch (both feet) due to the adhesive or the like provided in the fixing region is suppressed.
  • the position of the outermost end in the width direction of the fixed region is located inside the position of the outer end of the absorbent body at least in the central region.
  • both feet hit the outer end of the absorber before hitting the fixed region. Therefore, both feet are less likely to hit the fixed area, and a sense of incongruity due to an adhesive or the like provided in the fixed area can be further suppressed.
  • the flap portion is configured such that the front end portion in the width direction of the flap portion comes into contact with the non-skin-side surface of the liquid-impermeable sheet with the first joining region as a starting point.
  • the number of members in the thickness direction at the position of the folded end of the flap portion is greater than the number of members in the thickness direction at the position of the bent end of the liquid-permeable sheet. It is desirable that the number of members in the thickness direction at the position of the outer end of the absorber is smaller than the number of members.
  • a sanitary napkin 1 (hereinafter simply referred to as a napkin 1) will be described as an example of an absorbent article according to an embodiment of the present invention.
  • the absorbent article includes so-called vaginal sheets such as panty liners, light incontinence pads, and the like, and is not limited to sanitary napkins.
  • FIG. 1 is a schematic plan view of a napkin 1 according to an embodiment of the present invention as viewed from the skin side in the thickness direction.
  • FIG. 2 is a schematic plan view of the napkin 1 viewed from the non-skin side in the thickness direction.
  • 3A is a schematic cross-sectional view taken along the line IIIA-IIIA of FIG. 1, and
  • FIG. 3B is a view showing a state in which the flap portion 6 is folded back in FIG. 3A.
  • FIG. 4 is a schematic plan view showing the positional relationship between the first bonding region 71, the second bonding region 72, and the third bonding region 73.
  • the napkin 1 is a sheet-like member having a vertically long shape in plan view, and has a longitudinal direction, a width direction, and a thickness direction.
  • longitudinal direction refers to the longitudinal direction of the product of the napkin 1
  • thickness direction refers to the direction of the thickness of the product of the napkin 1
  • width direction refers to the longitudinal direction.
  • a lateral direction orthogonal to the direction and the thickness direction is shown.
  • the longitudinal direction on the stomach side of the user when the napkin 1 is used is “front”, and the direction on the back side of the user is “back”.
  • the thickness direction has a “skin side” that is in contact with the user's skin when the napkin 1 is used, and a “non-skin side” that is the opposite side.
  • the napkin 1 includes an absorbent body 2, a top sheet 3 disposed on the skin side in the thickness direction of the absorbent body 2, and a second sheet 4 disposed between the absorbent body 2 and the top sheet 3 in the thickness direction.
  • the back sheet 5 is provided on the non-skin side of the absorbent body 2 in the thickness direction.
  • the napkin 1 has a flap portion 6 at the center in the longitudinal direction that is used for mounting and fixing to underwear or the like during use.
  • the flap portion 6 projects outward from the outer edge in the width direction at the front and rear of the napkin 1, and is provided on both sides in the width direction.
  • a region where the flap portion 6 is provided is a central region 1a
  • a region in front of the central region 1a is a front region 1b
  • a region behind the central region 1a is a rear region. 1c.
  • the boundary between the central region 1a and the front region 1b and the boundary between the central region 1a and the rear region 1c will be specifically described with reference to FIG.
  • a point located in the outermost side of the width direction be the vertex 6a.
  • a point where the inclination of the tangent is parallel to the longitudinal direction for the first time is defined as a front point 6b.
  • a line connecting a pair of front points 6b arranged in the width direction is a boundary line (front boundary line) between the central region 1a and the front region 1b.
  • the point at which the inclination of the tangent is parallel to the longitudinal direction for the first time is defined as the rear point 6c.
  • a line connecting a pair of rear-side points 6c arranged in the width direction is a boundary line (rear-side boundary line) between the central region 1a and the rear region 1c.
  • the area from the front boundary line to the rear boundary line is the central area 1a.
  • a tangent line at a pair of front points 6b and a tangent line at a pair of rear points 6c are indicated by two-dot chain lines, and a front boundary line and a rear boundary line are respectively indicated by one-dot chain lines.
  • the absorber 2 is a member that absorbs liquid such as menstrual blood and holds it inside.
  • the absorbent body 2 include those having an absorbent core formed of air laid pulp and the like and a cover sheet formed of hydrolytic paper, and those in which the absorbent core is wrapped with a tissue or the like.
  • the absorber 2 does not necessarily need to consist of a single structure, and may be formed by stacking a plurality of structures in the thickness direction.
  • the top sheet 3 is an embodiment of a liquid permeable sheet that allows liquid such as menstrual blood to pass through, and is formed of, for example, a nonwoven fabric or the like. As shown in FIGS. 3A and 3B, the top sheet 3 has a bent portion 31 in which both sides in the width direction are bent. That is, the top sheet 3 is provided so that the absorber 2 and the second sheet 4 are wound inside from the skin side in the thickness direction.
  • the distal end portion 310 of the bent portion 31 is located between the absorbent body 2 and the back sheet 5 in the thickness direction.
  • the present invention is not limited thereto, and for example, the distal end portion 310 is more than the absorbent body 2. It may be located outside in the width direction.
  • the second sheet 4 is a sheet that allows a liquid such as menstrual blood to pass through, like the top sheet 3, and is formed of, for example, a nonwoven fabric of synthetic fibers.
  • the second sheet 4 is formed in the same size as the absorbent body 2, but is not necessarily the same size as the absorbent body 2.
  • the length in the width direction is the width direction of the absorbent body 2. It may be formed longer than this length. Note that the second sheet 4 is not necessarily provided in the napkin 1.
  • the back sheet 5 is an embodiment of a liquid impermeable sheet.
  • the back sheet 5 is disposed on the most non-skin side in the thickness direction, and on the skin side in the thickness direction of the main sheet 51.
  • the main sheet 51 is formed of, for example, a liquid-impermeable synthetic film
  • the side sheet 52 is formed of, for example, a soft nonwoven fabric. That is, in the present embodiment, the back sheet 5 may be such that the main sheet 51 is at least a liquid-impermeable sheet. Further, the back sheet 5 does not necessarily need to have two types of sheets, the main sheet 51 and the side sheet 52, and may be composed of only one type of liquid-impermeable sheet, for example.
  • the back sheet 5 has a flap portion 6.
  • the main seat 51 and the pair of side seats 52 have a portion protruding outward from the outer edge in the width direction in the front region 1b and the rear region 1c in the central region 1a, and the flaps are formed by the protruding portions. Part 6 is formed.
  • the back sheet 5 does not necessarily have the flap portion 6, and the flap portion 6 may be formed of a sheet member different from the back sheet 5.
  • a non-skin side surface 51b of the back sheet 5 (main sheet 51) is provided with a fixing region 511 for fixing the napkin 1 to a member to be fixed such as underwear, and the fixing region 511 is provided with an adhesive. ing.
  • the position of the outermost end 511 b in the width direction is located inside the position of the outer end 20 b in the width direction of the absorbent body 2.
  • both feet touch the fixing region 511 after hitting the outer end 20b in the width direction of the absorbent body 2 positioned outside the fixing region 511 in the width direction. This makes it difficult for both feet to come into contact with the fixed region 511, and can suppress a sense of incongruity caused by the adhesive provided in the fixed region 511 touching both feet.
  • four band-shaped regions along the longitudinal direction are arranged in the width direction to form the fixed region 511, and therefore, 2 of the four band-shaped regions arranged on the outermost side in the width direction.
  • the outermost end in the width direction in the two strip-shaped regions is the outermost end 511 b in the width direction of the fixed region 511.
  • a flap fixing region 512 for fixing the flap portion 6 to underwear or the like is provided on the non-skin side surface of the flap portion 6, and an adhesive is provided in the flap fixing region 512 in the same manner as the fixing region 511. Is provided.
  • the flap fixing area 512 is also provided on the non-skin side surface 51 b of the back sheet 5 (main sheet 51), similarly to the fixing area 511. Yes.
  • the fixing area 511 is attached to the inside of the crotch part of the underwear, the pair of flap portions 6 are bent to the non-skin side, and the flap fixing area 512 is attached to the outside of the crotch part. 1 is fixed to the underwear.
  • the members constituting the napkin 1 are joined to each other in the thickness direction by a joining region 7 provided with an adhesive such as a hot melt adhesive.
  • an adhesive such as a hot melt adhesive.
  • the adhesive application pattern provided in the bonding region 7 include an ⁇ pattern, a spiral pattern, and a stripe pattern.
  • the joining method of each member does not necessarily need to be joining by an adhesive, and may be joined by, for example, pressure squeezing (embossing).
  • sheet 5 of the top sheet 3 be the 1st joining area
  • FIG. 4 the bent portion 31 of the top sheet 3 and the back sheet 5 are joined by the first joining region 71 in the front region 1 b and the rear region 1 c and in the central region 1 a. Bonded by the second bonding region 72.
  • the first joining region 71 and the second joining region 72 are band-like regions along the longitudinal direction.
  • a pair of front side first bonding regions 711 are provided side by side in the width direction in the front region 1b, and a pair of rear side first bonding regions 712 are in the width direction in the rear region 1c. It is provided side by side.
  • region 712 is located on the extension of the longitudinal direction of a pair of front side 1st junction area
  • a pair of second bonding regions 72 are provided side by side in the width direction in the central region 1a.
  • the length along the longitudinal direction of the second joining region 72 is shorter than the total length of the lengths along the longitudinal direction of the first joining region 71.
  • the length L2 along the longitudinal direction of the second joining region 72 is along the length L1b along the longitudinal direction of the front side first joining region 711 and the longitudinal direction of the rear side first joining region 712. Is shorter than the total length of the length L1c (L2 ⁇ L1b + L1c).
  • the first bonding region 71 has a position in the width direction outside the position in the width direction of the second bonding region 72. That is, the first joining region 71 is located on the outermost side in the width direction among the joining regions joining the bent portion 31 of the top sheet 3 and the back sheet 5 in the thickness direction.
  • the first joining region 71 is located between the bent end 31b of the bent portion 31 of the top sheet 3 and the outer end 20b in the width direction of the absorber 2. Therefore, as shown in FIG. 3B, the front end portion 60 in the width direction of the flap portion 6 is brought into contact with the non-skin-side surface 51b of the back sheet 5 (main sheet 51) with the first joining region 71 as a starting point.
  • the position in the width direction of the folded end 61 b located on the outermost side in the width direction among the folded parts 61 formed in the flap part 6 is the folded end 31 b of the top sheet 3 and the absorber 2. It will be located between the outer ends 20b. That is, in the napkin 1, the folded end 31 b of the top sheet 3, the folded end 61 b of the flap portion 6, and the outer end 20 b of the absorber 2 are positioned in this order from the outer side to the inner side in the width direction.
  • the phrase “using the first bonding region 71 as the folding start point” more precisely means that the outermost end 71 b in the width direction of the first bonding region 71 serves as the folding point of the flap portion 6. Therefore, the fold line of the flap portion 6 is a line along the longitudinal direction at the position of the outermost end 71b in the width direction of the first joining region 71 (two-dot chain line in FIGS. 2 and 4). As shown, the position in the width direction of the folded end 61 b of the flap portion 6 and the position of the outermost end 71 b in the width direction of the first joining region 71 are the same.
  • the position of the innermost end 71a in the width direction of the first bonding region 71 is outside the position of the outermost end 511b in the width direction of the fixed region 511. Is located.
  • the fixing region 511 is provided inside the position of the inner end 71a in the width direction of the first joining region 71 in the entire longitudinal direction of the napkin 1, but at least in the central region 1a, the width It is only necessary that the position of the innermost end 71 a in the direction is located outside the position of the outermost end 511 b in the width direction of the fixed region 511.
  • the napkin 1 is worn. At this time, when both feet hit the folded portion 61 of the flap portion 6, it is possible to suppress a sense of discomfort in the crotch (both feet) due to an adhesive or the like provided in the fixing region 511.
  • the position of the outermost end 511b in the width direction of the fixed region 511 is not necessarily located inside the position of the innermost end 71a in the width direction of the first bonding region 71 in the entire longitudinal direction of the napkin 1.
  • a part of the fixed region 511 may be positioned so as to overlap the first bonding region 71 in the width direction.
  • the rigidity at the folded end 61b of the flap part 6 is larger than the rigidity at the bent end 31b of the top sheet 3 and smaller than the rigidity at the outer end 20b of the absorber 2. That is, in the napkin 1, the rigidity at the bent end 31 b of the top sheet 3, the rigidity at the folded end 61 b of the flap portion 6, and the rigidity at the outer end 20 b of the absorber 2 increase in order from the outside in the width direction to the inside. Yes.
  • “Rigidity” refers to the strength with which each member resists breakage against bending or the like when a force is applied from the outside in the width direction to the inside in the width direction from both feet of the user. Say. Therefore, the magnitude relationship of the rigidity at each end is known by the magnitude relationship of the repulsive force received by both feet from the bent end 31b of the top sheet 3, the folded end 61b of the flap portion 6, and the outer end 20b of the absorber 2. be able to.
  • FIG. 5A is an explanatory diagram for explaining a method of measuring the magnitude of the repulsive force from the sample.
  • FIG. 5B shows the bent end 31 b of the top sheet 3, the folded end 61 b of the flap portion 6, and the outside of the absorber 2. It is the table
  • the measurement terminal 8 for measuring the magnitude of the repulsive force from the sample has a bifurcated tip portion along the thickness direction of the sample.
  • the sample is obtained by cutting the napkin 1 in the thickness direction at the bent end 31 b of the top sheet 3, the folded end 61 b of the flap portion 6, and the outer end 20 b of the absorber 2.
  • Each sample is arranged between the two portions of the measurement terminal 8 and is opposed to the ends of the sample (the bent end 31b of the top sheet 3, the folded end 61b of the flap portion 6, and the outer end 20b of the absorber 2). And press the measuring terminal 8 from the width direction. At this time, the magnitude of the repulsive force received by the measurement terminal 8 from each sample is measured.
  • the magnitude of the repulsive force increases in the order of the bent end 31b of the top sheet 3, the folded end 61b of the flap portion 6, and the outer end 20b of the absorber 2.
  • the average value of the maximum repulsive force for four times received by the measurement terminal 8 from each end is shown.
  • the average maximum repulsive force at the bent end 31b of the top sheet 3 is 0.07 [N]
  • the average maximum repulsive force at the folded end 61b of the flap portion 6 is 0.20 [N]
  • the average maximum repulsive force at the outer end 20b is 0.59 [N]. Therefore, the average maximum repulsive force at the folded end 61b of the flap portion 6 is about three times the average maximum repulsive force at the bent end 31b of the top sheet 3, and the average maximum repulsive force at the outer end 20b of the absorbent body 2 is the flap.
  • the average maximum repulsive force at the folded end 61b of the portion 6 is about three times.
  • both feet When the napkin 1 is worn, in the central region 1a where both feet are in high contact, when both feet apply a force toward the inside in the width direction, both feet are bent end 31b of the top sheet 3 having the least rigidity, and then A repulsive force is received in the order of the folded end 61b of the flap portion 6 having a small rigidity and the outer end 20b of the absorber 2 having the largest rigidity, and the repulsive force from the outer end 20b of the largest absorber 2 is relaxed, It is possible to suppress a sense of discomfort in the crotch (both legs).
  • the number of members in the thickness direction at the position of the folded end 61b of the flap portion 6 is the thickness direction at the position of the bent end 31b of the top sheet 3. And the number of members in the thickness direction at the position of the outer end 20b of the absorber 2 is smaller.
  • the number of members in the thickness direction at the position of the folded end 61b of the flap portion 6 is two top sheets 3, two side sheets 52, and two main sheets 51. , 6 points.
  • the number of members in the thickness direction at the position of the bent end 31b of the top sheet 3 is two top sheets 3, which is two points.
  • the number of members in the thickness direction at the position of the outer end 20b of the absorbent body 2 is two top sheets 3, second sheet 4, absorbent body 2, two side sheets 52, and two main sheets. It becomes the sheet
  • the number of members has increased.
  • the napkin 1 does not necessarily need to have a greater number of members in the thickness direction as it goes inward from the outer side in the width direction. At least when the flap part 6 is folded back, the bent end 31b of the top sheet and the flap part 6 It is only necessary that the rigidity increases in the order of the folded end 61b and the outer end 20b of the absorber 2.
  • the position of the outermost end 72b in the width direction of the second bonding region 72 is positioned inside the position of the innermost end 71a of the first bonding region 71 in the width direction. That is, since the second joining region 72 does not exist at the folding start point of the flap portion 6, when the napkin 1 is worn, a force is applied from the user's feet toward the inner side in the width direction so that both feet are the folded portion of the flap portion 6. In the case of hitting 61, it is possible to suppress a sense of incongruity due to an adhesive or the like provided in the second joining region 72.
  • the distance between the second joining region 72 in the central region 1a and the bent end 31b of the top sheet 3 is the same as the distance between the first joining region 71 in the front region 1b and the rear region 1c.
  • the distance between the bent end 31b of the top sheet 3 and the width direction is longer. Accordingly, the bent portion 31 of the top sheet 3 can be secured in a wider area, and the space S between the bent portion 31 and the absorbent body 2 is formed wider, so that the movement of the top sheet 3 in the bent portion 31 is performed. It becomes flexible and the discomfort to the crotch when the napkin 1 is worn is further suppressed.
  • the position of the outermost end 72b in the width direction of the second bonding region 72 is located inside the position of the outer end 20b of the absorbent body 2. Because, when the napkin 1 is worn, both feet of the user hit the outer end 20b of the absorbent body 2 before hitting the second joining region 72, so that the discomfort due to the adhesive or the like provided in the second joining region 72 is felt. It is because it can suppress more.
  • the second bonding region 72 is not necessarily provided, and at least the first bonding region 71 that serves as a folding start point of the flap portion 6 may be provided.
  • the top sheet 3 and the second sheet 4 are joined in the thickness direction by a third joining region 73 provided between the top sheet 3 and the skin side surface 4a of the second sheet 4.
  • the second sheet 4 is an aspect of a facing member provided on the skin side with respect to the back sheet 5 with the skin side surface facing the top sheet 3.
  • the absorber 2 becomes an opposing member.
  • the third bonding region 73 is provided in a region having the same size as the absorber 4 in plan view. Therefore, the position of the outermost end 73b in the width direction of the third bonding region 73 is the same as the position of the outer end 20b in the width direction of the absorber 2 in the central region 1a, the front region 1b, and the rear region 1c. .
  • the position of the outermost end 73b in the width direction of the third bonding region 73 and the position of the outer end 20b in the width direction of the absorber 2 do not necessarily have to coincide with each other.
  • the position of the outermost end 73 b may be located outside the position of the outer end 20 b in the width direction of the absorbent body 2.
  • the third bonding region 73 may be provided so as to protrude from the absorber 2 in the width direction of the napkin 1.
  • the position of the outermost end 73b in the width direction of the third joint region 73 is located inside the position of the bent end 31b of the top sheet 3.
  • the third joining region 73 is not provided up to the bent end 31b of the top sheet 3, and the bent portion 31 of the top sheet 3 can be secured in a wider region, Since the space S between the bent portion 31 and the absorbent body 2 is formed wider, the degree of freedom of the fibers of the top sheet 3 in the bent portion 31 is increased, the flexibility is improved, and the crotch when the napkin 1 is worn A sense of discomfort is more suppressed.
  • the position of the outermost end 73b in the width direction of the third bonding region 73 is greater than the position of the innermost end 71a in the width direction of the first bonding region 71. It is more desirable that it is located inside. Because the third joining region 73 does not exist in the first joining region 71 which is the folding start point of the flap portion 6, when both feet hit the folded portion 61 of the flap portion 6 when the napkin 1 is worn, the third joining region 73 This is because it is possible to suppress discomfort in the crotch (both legs) due to the adhesive or the like provided in 73.
  • the napkin 1 does not necessarily have the third bonding region 73 provided that at least the first bonding region 71 serving as a folding start point of the flap portion 6 is provided. Good.

Landscapes

  • 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

L'invention concerne une serviette (1) comprenant un corps d'absorption (2), une feuille supérieure (3) et une feuille arrière (5), une partie rabat (6) étant disposée dans une zone centrale (1a), la feuille supérieure (3) comportant des parties pliées (31) des deux côtés, dans le sens de la largeur, les parties pliées (31) et la feuille arrière (5) étant reliées par une première zone de jonction (71), l'emplacement du sens de la largeur de la première zone de jonction (71) se trouvant entre une extrémité pliée (31b) des parties pliées (31) et une extrémité externe (20b) du corps d'absorption (2). Dans un état dans lequel la partie rabat (6) est repliée avec la première zone de jonction (71) sous forme de point d'inversion, l'emplacement dans le sens de la largeur d'une extrémité arrière pliée (61b) d'une partie arrière pliée (61) formée dans la partie rabat (6) est situé entre l'extrémité pliée (31 b) et l'extrémité externe (20 b), et la rigidité de l'extrémité arrière pliée (61b) est supérieure à la rigidité de l'extrémité pliée (31 b) et inférieure à la rigidité de l'extrémité externe (20 b).
PCT/JP2016/066566 2015-09-30 2016-06-03 Article d'absorption WO2017056562A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680043841.8A CN107920933B (zh) 2015-09-30 2016-06-03 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-193191 2015-09-30
JP2015193191A JP6051285B1 (ja) 2015-09-30 2015-09-30 吸収性物品

Publications (1)

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WO2017056562A1 true WO2017056562A1 (fr) 2017-04-06

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Application Number Title Priority Date Filing Date
PCT/JP2016/066566 WO2017056562A1 (fr) 2015-09-30 2016-06-03 Article d'absorption

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Country Link
JP (1) JP6051285B1 (fr)
CN (1) CN107920933B (fr)
WO (1) WO2017056562A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7229704B2 (ja) * 2018-09-04 2023-02-28 ユニ・チャーム株式会社 吸収性物品
JP7029495B2 (ja) * 2020-08-03 2022-03-03 株式会社リブドゥコーポレーション 吸収性物品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05154177A (ja) * 1991-12-09 1993-06-22 Kao Corp 生理用ナプキン
JPH06125939A (ja) * 1992-10-15 1994-05-10 Kao Corp 生理用ナプキン
JPH06285110A (ja) * 1993-04-02 1994-10-11 Kao Corp 生理用ナプキン
JP2007029351A (ja) * 2005-07-26 2007-02-08 Kao Corp 吸収性物品
JP2007117212A (ja) * 2005-10-25 2007-05-17 Kao Corp 吸収性物品

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5684046B2 (ja) * 2011-05-20 2015-03-11 ユニ・チャーム株式会社 吸収性物品
JP5082006B1 (ja) * 2011-09-30 2012-11-28 ユニ・チャーム株式会社 吸収性物品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05154177A (ja) * 1991-12-09 1993-06-22 Kao Corp 生理用ナプキン
JPH06125939A (ja) * 1992-10-15 1994-05-10 Kao Corp 生理用ナプキン
JPH06285110A (ja) * 1993-04-02 1994-10-11 Kao Corp 生理用ナプキン
JP2007029351A (ja) * 2005-07-26 2007-02-08 Kao Corp 吸収性物品
JP2007117212A (ja) * 2005-10-25 2007-05-17 Kao Corp 吸収性物品

Also Published As

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CN107920933B (zh) 2018-12-14
JP6051285B1 (ja) 2016-12-27
CN107920933A (zh) 2018-04-17
JP2017064039A (ja) 2017-04-06

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