WO2017150123A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2017150123A1
WO2017150123A1 PCT/JP2017/004668 JP2017004668W WO2017150123A1 WO 2017150123 A1 WO2017150123 A1 WO 2017150123A1 JP 2017004668 W JP2017004668 W JP 2017004668W WO 2017150123 A1 WO2017150123 A1 WO 2017150123A1
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WO
WIPO (PCT)
Prior art keywords
sheet
moisture
width direction
leak
absorbent article
Prior art date
Application number
PCT/JP2017/004668
Other languages
English (en)
Japanese (ja)
Inventor
英輔 武田
洋行 曽我
響 菊池
尊司 松井
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
Publication of WO2017150123A1 publication Critical patent/WO2017150123A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means

Definitions

  • the present invention relates to an absorbent article such as a disposable diaper.
  • Patent Document 1 discloses a disposable diaper including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber provided between the top sheet and the back sheet.
  • the disposable diaper described in Patent Document 1 has a first side flap and a second side flap in the vicinity of both sides of the absorber.
  • the first side flap is in contact with the wearer's skin, and the second side flap is provided on the back side of the first side flap.
  • the first side flap and the second side flap have at least a liquid-impermeable sheet and form a gather by elastic elastic members.
  • the first side flap and the second side flap have liquid-impermeable sheets for the purpose of preventing liquid leakage.
  • the inventor of the present application has a region around the leg opening that is disposed around the leg of the wearer and is configured with at least two layers of liquid-impermeable sheets. I found the problem of decline. Therefore, an absorbent article that can improve air permeability while preventing liquid leakage in a region near the leg opening is desired.
  • the absorbent article which concerns on one Embodiment is arrange
  • a leak-proof sheet provided on the non-skin surface side of the absorbent body and extending outward in the width direction of the absorbent body.
  • a moisture-permeable sheet having a moisture permeability higher than that of the leak-proof sheet is provided on the skin surface side of the leak-proof sheet.
  • the moisture-permeable sheet has a joint portion joined to the leak-proof sheet and an inner gather that is not joined to the leak-proof sheet and can rise from the leak-proof sheet.
  • the inner gathers extend outward from the rising base point in the width direction.
  • the inner gather has a first elastic member that expands and contracts in the front-rear direction.
  • FIG. 3 is a schematic cross-sectional view of the absorbent article taken along line 3A-3A in FIG. It is sectional drawing of the absorbent article which concerns on 2nd Embodiment.
  • FIG. 5 is a schematic cross-sectional view of the absorbent article taken along line 5A-5A in FIG. It is the top view seen from the non-skin surface side of the absorptive article concerning a 3rd embodiment.
  • FIG. 7 is a schematic cross-sectional view of an absorbent article taken along line 7A-7A in FIG.
  • FIG. 9 is a schematic cross-sectional view of the absorbent article taken along line 9A-9A in FIG. It is the top view seen from the non-skin surface side of the absorptive article concerning a 5th embodiment. It is typical sectional drawing of the absorbent article along the 11A-11A line of FIG. It is typical sectional drawing of the absorbent article along the 12A-12A line of FIG. It is a schematic plan view which shows the area
  • the rising base point is defined by the root of the inner gather, that is, the edge line at which the inner gather starts to rise. More specifically, it is defined by the portion located on the outermost side in the width direction among the roots of the inner gathers in the crotch region, that is, the portion located on the outermost side in the width direction among the edge lines where the inner gathers start rising in the crotch region.
  • the inner gathering rises from the leak-proof sheet due to the action of the first elastic member, and easily adheres to the wearer's legs.
  • the air permeability of the leg area is improved.
  • the inner gathers have a moisture permeability higher than that of the leak-proof sheet, the breathability in the leg area is further improved.
  • the liquid is liable to leak from the absorbent article due to the pressure.
  • the wearer's thigh presses the vicinity of the leg opening of the absorbent article.
  • the leak-proof sheet comes into close contact with the non-skin surface side of the inner gathers due to the pressure from the thighs in the posture where the wearer is sleeping or sitting. Thereby, the leak-proof sheet suppresses leakage of liquid from the region near the leg opening, in the posture where the wearer is sleeping or sitting.
  • the absorbent article according to the present embodiment while maintaining the effect of preventing liquid leakage from the region near the leg opening, the air permeability in the region near the leg opening is improved. be able to.
  • the leak-proof sheet has a second elastic member that expands and contracts in the front-rear direction inside the rising base point of the inner gather in the width direction.
  • the area inside the inner gather becomes easier to follow around the wearer's skin, and accordingly the inner gather is more around the wearer's leg. It becomes easy to adhere to. When the inner gathers are in close contact with the wearer's legs, leakage of liquid from the leg opening can be suppressed.
  • a front waistline region disposed on the wearer's stomach side, a rear waistline region disposed on the wearer's back side, a fastening tape provided in the rear waistline region, and the front waistline
  • a target portion to which the fastening tape is fixed. The target portion extends outward from the rising base point of the inner gather in the width direction.
  • the widthwise outer portion of the front waistline region is a portion that is rubbed with the back waistline region or is easily affected by the wearer's movement. Therefore, the widthwise outer side portion of the front waistline region is easily deformed so as to bend during wearing. If the outer portion in the width direction of the front waistline region is deformed in this way, the effect is transmitted to the region near the leg opening, and the region near the leg opening may be blurred.
  • the rigidity of the outer portion of the front waistline region is improved by the target portion extending outward from the rising base point of the inner gathers, the deformation of the outer portion in the width direction of the front waistline region is suppressed. It is possible to suppress the wobbling of the area near the opening. Therefore, the outer part of the front waistline region can easily maintain a state along the wearer's skin. As a result, leakage of liquid from the vicinity of the opening around the leg can be further suppressed.
  • the moisture permeable sheet is provided on the first skin permeable sheet and the non-skin surface side of the first moisture permeable sheet, and has a higher hydrophilicity than the first moisture permeable sheet.
  • a moisture permeable sheet is provided on the first skin permeable sheet and the non-skin surface side of the first moisture permeable sheet, and has a higher hydrophilicity than the first moisture permeable sheet.
  • the hydrophilicity of the second moisture permeable sheet is higher than the hydrophilicity of the first moisture permeable sheet facing the wearer's skin.
  • a distance from the rising base point to the outer edge of the leak-proof sheet in the width direction is shorter than a distance from the rising base point to the outer edge of the moisture-permeable sheet in the width direction.
  • the outer edge of the leak-proof sheet can be prevented from warping to the non-skin surface during the wearer's movement. This prevents the outer edge of the leak-proof sheet from being folded back to the non-skin surface in the posture where the wearer is sleeping or sitting, and as a result, liquid from the vicinity of the leg opening It becomes easy to suppress leakage.
  • the leak-proof sheet extends and contracts in the front-rear direction outside the rising base point of the inner gathers in the width direction and inside the first elastic member in the width direction. It has 2 elastic members.
  • the leak-proof sheet Since the leak-proof sheet has the second elastic member at a position different from the first elastic member of the inner gather in the width direction, it tends to contract differently from the inner gather. Thereby, an inner side gather and a leak-proof sheet can be made easy to separate.
  • the rising base point is located inside the edge of the absorber in the width direction.
  • the moisture permeable sheet is folded at a fold line along the front-rear direction at an inner edge in the width direction, and the first portion on the skin side of the moisture permeable sheet and the moisture permeable sheet.
  • the second part on the non-skin surface side overlaps with the thickness direction of the absorbent article, and the second part of the moisture-permeable sheet is joined to the leak-proof sheet.
  • the inner gathers are formed by folding the moisture-permeable sheet, the inner gathers can be separated from the leak-proof sheet by the force with which the moisture-permeable sheet tries to open.
  • the absorbent article includes a front waistline region disposed on the wearer's ventral side, a rear waistline region disposed on the wearer's back side, the front waistline region, and the rear waistline region.
  • a crotch region located between the first and second moisture-permeable sheets and the second and second moisture-permeable sheets are joined to each other at least in the front waistline region and the rear waistline region.
  • first portion and the second portion are joined to each other at least in the front waistline region and the rear waistline region, it is possible to suppress the outer edge of the inner gathers or the leak-proof sheet from being turned over to the non-skin surface side. Can do. Thereby, the rising of the inner gathers can be maintained at a necessary limit. Moreover, since the outer edge of an inner gather or a leak-proof sheet is not turned over to the non-skin surface side during manufacture of an absorbent article, a good product can be manufactured stably.
  • the first portion of the moisture permeable sheet and the second portion of the moisture permeable sheet are joined to each other at a joint provided along the fold line in the crotch region.
  • the joint portion constitutes a rising base point.
  • the absorbent article includes a front waistline region disposed on the wearer's ventral side, a rear waistline region disposed on the wearer's back side, the front waistline region, and the rear waistline region.
  • the moisture-permeable sheet covers the entire absorbent body at least in the width direction, and the moisture-permeable sheet is joined to the leak-proof sheet in the crotch area. Or joined to the leak-proof sheet at joints provided intermittently in the crotch region.
  • the outer portion of the moisture-permeable sheet in the width direction W constitutes an inner gather that can rise from the leak-proof sheet. Therefore, as described above, the air permeability of the region near the leg opening can be enhanced while maintaining the effect of preventing the liquid from leaking from the region near the leg opening. Moreover, since the moisture-permeable sheet which comprises an inner gather exists in the non-skin surface side of an absorber, the air permeability of the area
  • the moisture-permeable sheet is joined to the leak-proof sheet on both sides in the front-rear direction with respect to the inner gathers that can rise from the leak-proof sheet.
  • the outer edge of the leak-proof sheet can be prevented from warping to the non-skin surface side.
  • the joint portion extends partially along the front-rear direction in the crotch region.
  • the joint along the front-rear direction prevents liquid from flowing in the width direction in the crotch region. Thereby, the side leakage of the liquid can be suppressed.
  • the joint part extends partially in the front-rear direction, moisture easily passes to the outside in the crotch region. Thereby, coexistence with the suppression of the leakage of a liquid and improvement of air permeability can be aimed at.
  • the joint portion is at least a region of the rear side of the center of the absorbent article in the front-rear direction from the outside of the outer edge of the absorber in the width direction. It extends inward in the width direction beyond the outer edge.
  • the part on the rear side of the center of the absorbent article in the front-rear direction is a region facing the wearer's buttocks or the upper part thereof. Therefore, this region is subjected to strong pressure in the posture where the wearer is sitting and the posture where the wearer is sleeping.
  • the absorber that has absorbed the liquid is subjected to a strong pressure, the liquid that has oozed out of the absorber may leak to the outer edge of the absorber in the width direction.
  • the joint portion extends from the outer side of the outer edge of the absorbent body in the width direction, beyond the outer edge of the absorbent body in the width direction.
  • the sheet extends inward, the sheets do not stand up in a region that receives a strong pressure from the wearer's buttocks. Thereby, since the area
  • An absorbent article is Forward and backward, A width direction orthogonal to the front-rear direction;
  • An absorber A leg-hole opening disposed on both sides of the width direction and arranged around the wearer's leg in a worn state;
  • a leakproof sheet provided on the non-skin surface side of the absorbent body and extending outward in the width direction of the absorbent body, and an absorbent article comprising: At least in the leg-hole opening, a moisture-permeable sheet having a moisture permeability higher than that of the leak-proof sheet is provided on the skin surface side of the leak-proof sheet,
  • the moisture permeable sheet has an inner gather that is not joined to the leakproof sheet and can rise from the leakproof sheet at the outer side in the width direction,
  • the inner gather has a first elastic member that expands and contracts in the front-rear direction.
  • the inner gathering rises from the leak-proof sheet due to the action of the first elastic member 75 and is easily adhered to the wearer's leg.
  • the air permeability of the leg area is improved.
  • the inner gathers have a moisture permeability higher than that of the leak-proof sheet, the breathability in the leg area is further improved.
  • the liquid is liable to leak from the absorbent article due to the pressure.
  • the wearer's thigh presses the vicinity of the leg opening of the absorbent article.
  • the leak-proof sheet comes into close contact with the non-skin surface side of the inner gathers due to the pressure from the thighs in the posture where the wearer is sleeping or sitting. Thereby, the leak-proof sheet suppresses leakage of liquid from the region near the leg opening, in the posture where the wearer is sleeping or sitting.
  • the air permeability in the region near the leg opening can be enhanced while maintaining the effect of preventing liquid leakage from the region near the leg opening.
  • the absorbent article is a disposable diaper.
  • the same or similar parts are denoted by the same or similar reference numerals.
  • the drawings are schematic and ratios of dimensions may be different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.
  • FIG. 1 is a top view of the unfolded state of the disposable diaper 10 which concerns on this embodiment.
  • FIG. 2 is a plan view of the disposable diaper 10 viewed from the side opposite to FIG.
  • FIG. 3 is a schematic cross-sectional view of the disposable diaper 10 taken along line 3A-3A in FIG.
  • the plan view shown in FIGS. 1 and 2 is a state in which the elastic members 75, 76, and 77 are extended until there are no wrinkles on the top sheet 50 and the side sheets 70 constituting the disposable diaper 10.
  • the disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30.
  • the front waistline region 20 is a portion that is disposed at the wearer's front waistline (abdomen).
  • the back waist area 30 is a part arrange
  • the crotch region 25 is located between the front waistline region 20 and the rear waistline region 30.
  • the crotch region 25 is a region where the leg opening 35 is provided.
  • the leg opening 35 is provided on both sides of the disposable diaper in the width direction W.
  • the leg opening 35 is a part that is disposed along the wearer's leg while the disposable diaper is worn by the wearer.
  • a direction from the front waistline region 20 toward the rear waistline region 30 is referred to as a front-rear direction L.
  • the width direction W is a direction orthogonal to the front-rear direction L.
  • the thickness direction T is a direction including the skin surface side T1 of the wearer and the skin surface side T1 and the non-skin surface side T2 of the wearer.
  • the disposable diaper 10 has at least an absorber 40, a skin sheet disposed on the skin surface side T1 of the absorber 40, and a non-skin surface sheet disposed on the non-skin surface side T2 of the absorber 40.
  • the absorber 40 is disposed at least in the crotch region 25.
  • the absorber 40 has an absorption core and a core wrap.
  • the absorbent core includes an absorbent material such as ground pulp or superabsorbent polymer (SAP).
  • SAP superabsorbent polymer
  • the core wrap is a sheet that covers the absorbent core.
  • a core wrap is comprised with the various fiber nonwoven fabric or tissue which has liquid permeability.
  • the skin sheet has a top sheet 50 and a side sheet 70.
  • the top sheet 50 is formed of a liquid permeable sheet such as a nonwoven fabric or a woven fabric.
  • the top sheet 50 is a sheet that comes into contact with the skin of the wearer.
  • the side sheet 70 covers the outer edge of the top sheet 50 in the width direction W and extends outward in the width direction from the top sheet 50.
  • the inner edge of the side sheet 70 in the width direction W is folded back outward in the width direction.
  • a third elastic member 77 that expands and contracts in the front-rear direction L is disposed in the region of the side sheet 70 that overlaps the two layers by being folded.
  • the side seat 70 and the third elastic member 77 constitute a leakage prevention cuff.
  • the non-skin surface sheet has at least a leak-proof sheet 60 a and an exterior sheet 60.
  • the leak-proof sheet 60 a has liquid impermeability and is disposed on the non-skin surface side with respect to the absorber 40.
  • the leak-proof sheet 60 a extends outward in the width direction W from the absorber 40.
  • the exterior sheet 60 is arrange
  • the leak-proof sheet 60a can be formed from nonwoven fabrics, such as SMS, for example.
  • Moisture permeability of the barrier sheet 60a is preferably in the range of 1500 ⁇ 4000g / m 2 / 24hr .
  • moisture permeability of the barrier sheet 60a is not more than 4000g / m 2 / 24hr, a liquid that has been absorbed into the absorbent body 40 can be prevented from leaking transmitted through the barrier sheet 60a.
  • the disposable diaper 10 includes a fastening tape 90 in the rear waistline region 30.
  • the fastening tape 90 is attached to the side sheet 70.
  • the fastening tape 90 extends along the width direction W in the rear waistline region 30.
  • the fastening tape 90 has a fastening portion 92 that is fastened to a target portion 95 provided in the front waistline region 20. When the fastening portion 92 of the fastening tape 90 is fastened to the target portion 95, the disposable diaper 10 can be held on the wearer's body.
  • the disposable diaper 10 has moisture permeable sheets 64 and 70 on the skin surface side of the leak-proof sheet 60a at least at the leg opening 35.
  • the moisture permeable sheets 64 and 70 have higher moisture permeability than the leak-proof sheet 60a.
  • the moisture permeable sheets 64 and 70 are configured in two layers. One of the two moisture permeable sheets is a part of the side sheet 70. Instead of this embodiment, one layer of the two layers of moisture-permeable sheets may be composed of a sheet different from the side sheet 70.
  • the moisture-permeable sheets 64 and 70 include a joint portion joined to the leak-proof sheet 60a and an inner gather 74 that is not joined to the leak-proof sheet 60a and can rise from the leak-proof sheet 60a.
  • the inner gather 74 has a first elastic member 75 that expands and contracts in the front-rear direction L.
  • the first elastic member 75 is disposed on the rising base point B1 or on the outer side in the width direction W. When the moisture permeable sheets 64 and 70 are contracted by the contraction force of the first elastic member 75, the inner gathers 74 are formed.
  • the inner gather 74 can rise from the leak-proof sheet 60a and extends outward in the width direction W from the rising base point B1.
  • the rising base point B ⁇ b> 1 is defined by the root of the inner gather 74, that is, the edge line at which the inner gather 74 starts to rise.
  • the moisture permeable sheet 64 is folded back into two. One surface of the moisture permeable sheet 64 on the skin surface side is joined to the side sheet 70. One surface of the moisture-permeable sheet 64 on the non-skin surface side is joined to the leak-proof sheet 60a. The inner surfaces of the moisture permeable sheet 64 folded in two are not joined to each other. Thereby, the part by the side of the skin of moisture-permeable sheet 64 can stand up from leak-proof sheet 60a.
  • the inner gather 74 rises from the leak-proof sheet 60a by the action of the first elastic member 75, and is easily adhered to the wearer's leg. Thereby, in the region where the wearer's pressure resistance is not applied in the sleeping posture or the sitting posture, the leak-proof sheet 60a is separated from the wearer's leg-surrounding region, so the air permeability in the region near the leg-surrounding opening 35 is improved. To do. Furthermore, since the inner gathers 74 have a moisture permeability higher than that of the leak-proof sheet 60a, the air permeability in the region near the leg opening 35 is further improved.
  • the liquid easily leaks from the absorbent article due to the pressure.
  • the wearer's thigh presses the vicinity of the leg opening 35 of the absorbent article.
  • the leak-proof sheet 60a comes into close contact with the non-skin surface side of the inner gathers 74 due to the pressure from the thighs when the wearer is sleeping or sitting. Thereby, the leak-proof sheet 60a suppresses the leakage of the liquid from the region near the leg opening 35 in the posture where the wearer is sleeping or sitting.
  • the air permeability in the region near the leg opening 35 can be improved while maintaining the effect of preventing the leakage of liquid from the region near the leg opening 35. .
  • the moisture permeable sheets 64 and 70 are provided on the side sheet 70 as the first moisture permeable sheet and the non-skin surface side of the first moisture permeable sheet, and are more hydrophilic than the first moisture permeable sheet 70.
  • a second moisture-permeable sheet 64 having The hydrophilicity of the second moisture-permeable sheet 64 is higher than the hydrophilicity of the first moisture-permeable sheet 70 facing the wearer's skin.
  • the second moisture permeable sheet 64 can be formed from an open span lace, for example.
  • the side sheet 70 is preferably composed of a sheet that has a function of allowing moisture to pass through while maintaining leakage resistance. Examples of such sheets include SMS nonwoven fabrics or hydrophobic spunbond nonwoven fabrics.
  • the side sheet 70 may be composed of at least two sheets.
  • at least one sheet constituting the side sheet 70 overlaps with the second moisture permeable sheet 64.
  • the remaining sheets constituting the side sheet 70 extend inwardly of the second moisture permeable sheet 64 in the width direction W, and constitute the above-described leakage prevention cuff.
  • the sheet constituting the leak-proof cuff in the side sheet 70 can be formed from, for example, an SMS nonwoven fabric having leak-proof properties, and the sheet overlapping the second moisture-permeable sheet 64 in the side sheet 70 is , Open spunlace, hydrophilic spunbond nonwoven fabric, hydrophilic point bond nonwoven fabric, hydrophilic air-through nonwoven fabric and the like.
  • the distance W1 from the rising base point B1 to the outer edge of the leak-proof sheet 60a in the width direction W is shorter than the distance W2 from the rising base point B1 to the outer edges of the moisture permeable sheets 64 and 70 in the width direction W. Since the distance W1 from the rising base point B1 of the inner gathers 74 to the outer edge of the leakage preventing sheet 60a is relatively short, the outer edge of the leakage preventing sheet 60a is prevented from warping to the non-skin surface during the wearer's operation. be able to. This prevents the outer edge of the leak-proof sheet 60a from being folded back to the non-skin surface side in the posture where the wearer is sleeping or sitting, and as a result, the region around the leg opening 35. It becomes easy to suppress the leakage of the liquid from.
  • the leak-proof sheet 60a has a second elastic member 76 that expands and contracts in the front-rear direction L inside the rising base B1 of the inner gathers 74 in the width direction W.
  • the second elastic member 76 is provided outside the absorber 40 in the width direction W. Due to the contraction of the second elastic member 76 existing inside the inner gather 74 in the width direction W, the inner region of the inner gather 76 becomes easier to follow around the wearer's skin. It becomes easy to adhere to the wearer's legs. Since the inner gathers 76 are in close contact with the wearer's leg, leakage of liquid from the leg opening 35 can be suppressed.
  • the target portion 95 extends in the width direction W and extends outward from the rising base point of the inner gathers 74 in the width direction W.
  • the widthwise W outer side portion of the front waistline region 20 is a portion that is easily rubbed with the back waistline region 30 or easily affected by the wearer's movement. Therefore, the width direction W outer side part of the front waistline area 20 is easy to deform
  • the rigidity of the outer portion of the front waistline region 20 is improved by the target portion 95 extending outward from the rising base point B1 of the inner gathers 74, deformation of the outer portion of the front waistline region 20 in the width direction W is suppressed. As a result, it is possible to prevent the area around the leg opening 35 from curling. Therefore, the liquid leakage from the vicinity of the leg opening 35 can be further suppressed.
  • the absorber 40 has a pair of first fold lines FL1 extending in the front-rear direction L and a pair of second fold lines FL2 extending in the front-rear direction.
  • the absorber 40 is folded at a pair of first fold lines FL1 and a pair of second fold lines FL2.
  • the absorber 40 is folded at four locations by a pair of first fold lines FL1 and a pair of second fold lines FL2. Thereby, a part of the absorber 40 is folded in three layers by the overlapping portion 45.
  • the outer edge 40E of the absorber 40 is made of one layer of absorbent material and has a relatively thin thickness. Therefore, the uncomfortable feeling around the wearer's leg can be reduced.
  • the overlapping portion 45 is a portion between the first fold line FL1 and the second fold line FL2.
  • the absorber 40 In the region between the pair of second folding lines FL2, only one layer of absorbent material is disposed. In the region between the pair of second fold lines FL2, that is, the central region in the width direction W, the absorber 40 is relatively thin. Therefore, the central region is recessed on the non-skin surface side as compared with the region on the outer side in the width direction than the pair of second folding lines FL2. Thereby, excrement (for example, urine) becomes easy to be held in the central region of the absorber 40, and the ability to absorb excrement can be enhanced while suppressing leakage of excrement.
  • excrement for example, urine
  • the weight of the absorbent material in the intermediate layer 43 sandwiched between the upper layer 41 and the lower layer 42 in the overlapping portion 45 is lower than the weight of the absorbent material in the upper layer 41 and the lower layer 42.
  • the intermediate layer 43 is substantially free of absorbent material.
  • the intermediate layer 43 has zero design basis weight of the absorbent material, but allows the absorbent material constituting the upper layer 41 or the lower layer 42 to be mixed during the manufacturing process.
  • the intermediate layer 43 does not include an absorbent material
  • the intermediate layer 43 is composed only of the core wrap described above. Since the basis weight of the absorbent material of the intermediate layer 43 is lower than the basis weight of the absorbent material of the upper layer 41 and the lower layer 42, it is possible to suppress the thickness of the overlapping portion 45 from becoming too thick.
  • the skin surface of the intermediate layer 43 and the non-skin surface of the upper layer 41 are not joined. Further, the non-skin surface of the intermediate layer 43 and the skin surface of the lower layer 42 are not joined. Therefore, it is easy to apply forces in directions opposite to each other between the upper layer 41 and the lower layer 42. Therefore, when a force directed from the outer side in the width direction W to the inner side in the width direction W is applied, a reaction force of the force is likely to be generated, and the effect of reducing the rigidity of the absorber 40 is easily exhibited.
  • FIG. 4 is typical sectional drawing of the disposable diaper 10 which concerns on 2nd Embodiment.
  • symbol is attached
  • the structure of the absorbent body 40 of the disposable diaper 10 is different from the embodiment shown in FIG. 3.
  • the absorber 40 is made of a single layer absorbent material.
  • the absorber 40 is not restricted to the structure shown in FIG.
  • FIG. 5 is a schematic cross-sectional view of the disposable diaper 10 taken along the line 5A-5A in FIG.
  • the moisture-permeable sheet 64 is folded at a fold line along the front-rear direction L at the inner edge in the width direction W. Accordingly, the first portion 64 a on the skin surface side of the moisture permeable sheet 64 and the second portion 64 b on the non-skin surface side of the moisture permeable sheet 64 overlap in the thickness direction T.
  • the first portion 64 a of the moisture permeable sheet 64 is joined to the side sheet 70.
  • the second portion 64b of the moisture permeable sheet 64 is joined to the leakproof sheet 60a.
  • the first portion 64 a of the moisture permeable sheet 64 and the second portion 64 b of the moisture permeable sheet 64 are joined to each other by an adhesive 80 at least in the front waistline region 20 and the rear waistline region 30. Note that the region where the adhesive 80 is applied is indicated by a hatched region A in FIG.
  • the outer edge of the inner gathers or the leak-proof sheet is turned over to the non-skin surface side. Can be suppressed. Thereby, the rise of the inner gathers 74 can be maintained at a necessary limit. Moreover, since the outer edge of an inner gather or a leak-proof sheet is not turned over to the non-skin surface side during manufacture of the disposable diaper 10, a good article can be manufactured stably.
  • the first portion 64 a of the moisture permeable sheet 64 and the second portion 64 b of the moisture permeable sheet 64 are not joined to each other in the crotch region 25.
  • the rising base point B1 of the inner gathers is defined as a portion located on the outermost side in the width direction among the roots of the inner gathers in the crotch region. Therefore, in this case, the rising base point B1 is the position of the folding line of the moisture permeable sheet 64.
  • FIG. 6 is the top view seen from the non-skin surface side of the disposable diaper which concerns on 3rd Embodiment.
  • FIG. 7 is a schematic cross-sectional view of the disposable diaper along the line 7A-7A in FIG.
  • the same reference numerals are given to the same configurations as those in the above-described embodiment, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • region of the junction part 80 which joins the 1st part 64a of the moisture-permeable sheet 64 and the 2nd part 64b of the moisture-permeable sheet 64 differs from the said embodiment.
  • the first portion 64 a of the moisture permeable sheet 64 and the second portion 64 b of the moisture permeable sheet 64 are joined to each other at a joint portion A provided along the fold line of the moisture permeable sheet 64 in the crotch region 25.
  • the joint A is composed of a region where the adhesive 80 is applied.
  • the joint A constitutes the rising base point B1.
  • the outer edge of the inner gathers or leakproof sheet is turned over to the non-skin surface side. It can be suppressed. Thereby, the rise of the inner gathers 74 can be maintained at a necessary limit.
  • the joint A extends along the front-rear direction L from the front waistline region 20 to the rear waistline region 30.
  • the adhesive 80 can be easily applied by discharging the adhesive 80 while conveying the disposable diaper 10 in the front-rear direction L.
  • FIG. 8 is the top view seen from the non-skin surface side of the disposable diaper which concerns on 4th Embodiment.
  • FIG. 9 is a schematic cross-sectional view of the disposable diaper along the line 9A-9A in FIG.
  • the same reference numerals are given to the same configurations as those in the above-described embodiment, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • the position of the rising base point B1 of the inner gathers 74 is different from that in the embodiment described in FIG.
  • the moisture permeable sheet 64 is folded at a fold line along the front-rear direction L at the inner edge in the width direction W. Accordingly, the first portion 64 a on the skin surface side of the moisture permeable sheet 64 and the second portion 64 b on the non-skin surface side of the moisture permeable sheet 64 overlap in the thickness direction T.
  • the first portion 64 a of the moisture permeable sheet 64 and the second portion 64 b of the moisture permeable sheet 64 are joined to each other by the adhesive 80 at least in the front waistline region 20 and the rear waistline region 30.
  • the region where the adhesive 80 is applied is indicated by a hatched region A in FIG.
  • the first portion 64 a of the moisture permeable sheet 64 and the second portion 64 b of the moisture permeable sheet 64 are not joined to each other in the crotch region 25.
  • the rising base point B1 of the inner gathers 74 is defined by the portion of the root of the inner gathers 74 in the crotch region that is located on the outermost side in the width direction. Therefore, in this case, the rising base point B1 is the position of the folding line of the moisture permeable sheet 64.
  • the rising base point B1 is located inside the edge 40E of the absorber 40 in the width direction W (see also FIG. 8).
  • the inner gathers 74 can be separated from the leak-proof sheet 60a at the end of the absorber 40 at least in the crotch region 25.
  • air permeability improves also in the edge part of the absorber 40. FIG. Therefore, it is possible to suppress a rash or the like near the base of the user's leg.
  • FIG. 10 is the top view seen from the non-skin surface side of the absorbent article which concerns on 5th Embodiment.
  • 11 is a schematic cross-sectional view of the absorbent article taken along line 11A-11A in FIG.
  • FIG. 12 is a schematic cross-sectional view of the absorbent article taken along line 12A-12A in FIG.
  • the same reference numerals are given to the same configurations as those in the above-described embodiment, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • the moisture permeable sheet 64 covers the entire absorber 40 at least in the width direction W.
  • the moisture permeable sheet 64 may be joined to the side sheet 70 outside the absorber 40 in the width direction W.
  • the leak-proof sheet 60 a is provided on the non-skin surface side of the moisture-permeable sheet 64.
  • the moisture-permeable sheet 64 and the leak-proof sheet 60a are joined to each other by the adhesive 80 at least in the front waistline region 20 and the back waistline region 30.
  • coated is shown by the area
  • the moisture-permeable sheet 64 is not joined to the leak-proof sheet 60 a at the outer side in the width direction W of the crotch region 25. Even in this case, the outer side portion of the moisture-permeable sheet 64 in the width direction W constitutes an inner gather that can rise from the leak-proof sheet 60a.
  • the inner gathers rise from the leak-proof sheet 60a by the action of the first elastic member 75, and are easily adhered to the wearer's legs.
  • region improves.
  • the inner gathers have a moisture permeability higher than that of the leakproof sheet 60a, the air permeability in the leg periphery region is further improved.
  • the liquid easily leaks from the absorbent article due to the pressure.
  • the wearer's thigh presses the vicinity of the leg opening of the absorbent article.
  • the leak-proof sheet 60a comes into close contact with the non-skin surface side of the inner gathers 74 due to pressure from the thighs in a posture where the wearer is sleeping or sitting. Thereby, the leak-proof sheet 60a suppresses the leakage of liquid from the region near the leg opening, in the posture where the wearer is sleeping or sitting.
  • region near a leg periphery opening part is improved, maintaining the effect which prevents the leakage of the liquid from the area
  • the moisture-permeable sheet 64 and the leak-proof sheet 60a are joined to each other by the adhesive 80 at least in the front waistline region 20 and the rear waistline region 30. Since the moisture-permeable sheet 64 is joined to the leak-proof sheet 60a on both sides in the front-rear direction with respect to the inner gathers, the outer edge of the leak-proof sheet 60a can be prevented from warping to the non-skin surface side.
  • FIG. 13 has shown the area
  • the same components as those in the fifth embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • the region A of the joint portion between the moisture-permeable sheet 64 and the leak-proof sheet 60a is different.
  • the moisture-permeable sheet 64 is joined to the leak-proof sheet 60 a at the joint portion A provided intermittently in the crotch region 25.
  • the joint portion A has a portion 81 partially extending along the front-rear direction in the crotch region.
  • a plurality of portions 81 partially extending along the front-rear direction of the joint portion A may be provided at intervals in the width direction W.
  • the joint portion 81 along the front-rear direction prevents the liquid from flowing in the width direction W in the crotch region 25. Thereby, the side leakage of the liquid can be suppressed.
  • the joint portion since the joint portion extends only partially in the front-rear direction, moisture easily passes to the outside in the crotch region 25. Thereby, coexistence with the suppression of the leakage of a liquid and improvement of air permeability can be aimed at.
  • At least one of the joint portions 81 along the front-rear direction is disposed outside the absorber 40 in the width direction W. Thereby, the liquid once absorbed by the absorber 40 can be prevented from flowing toward the outside in the width direction W.
  • the joint portion 81 exists on an arbitrary line along the width direction W in the crotch region 25.
  • the crotch region 25 is configured so that the joint A does not exist at all on a straight line along the width direction W. Thereby, it can suppress more that a liquid flows toward the outer side of the width direction W.
  • the rising point B1 of the inner gathers is determined by the portion located on the outermost side in the width direction among the roots of the inner gathers in the crotch region 25, that is, the portion located on the outermost side in the width direction among the edge lines where the inner gathers start rising in the crotch region 25.
  • the rising base point B1 is defined by a portion located on the outermost side in the width direction among the joint portions 81 in the crotch region 25 (see FIG. 13).
  • the joint portion 81 extends parallel to the front-rear direction L.
  • the joint portion 81 may be inclined from the front-rear direction L as long as it is along the front-rear direction L.
  • FIG. 14 has shown the area
  • the same components as those in the fifth embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • the seventh embodiment differs from the fifth embodiment in the region A of the joint between the moisture-permeable sheet 64 and the leak-proof sheet 60a.
  • the moisture-permeable sheet 64 is joined to the leak-proof sheet 60a at the joint portion A provided intermittently in the crotch region 25.
  • the joint portion A has a portion 81 partially extending along the front-rear direction in the crotch region.
  • a plurality of portions 81 partially extending along the front-rear direction of the joint portion A may be provided at intervals in the width direction W.
  • the end of the portion 81 that partially extends along the front-rear direction of the joint A is curved inward in the width direction W.
  • the joint portion 81 has a shape for receiving the liquid from the center in the width direction W toward the outside. Thereby, it can suppress more that a liquid flows toward the outer side of the width direction W.
  • the joint portion 81 extends parallel to the front-rear direction L. Instead, the joint portion 81 may be inclined from the front-rear direction L as long as it is along the front-rear direction L.
  • FIG. 15 shows a region of a joint portion between a moisture-permeable sheet and a leak-proof sheet in an absorbent article according to the eighth embodiment.
  • the same components as those in the fifth embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • a configuration different from the above-described embodiment will be described in detail.
  • the region A of the joint portion between the moisture-permeable sheet 64 and the leak-proof sheet 60a is different.
  • the moisture permeable sheet 64 is joined to the leak-proof sheet 60 a at the joint A partially provided in the crotch region 25.
  • the joint portion 82 between the moisture permeable sheet 64 and the leak-proof sheet 60a is at least a region behind the center C of the absorbent article in the front-rear direction L. It extends inward in the width direction beyond the outer edge of the absorber 40.
  • the joining part 82 may have reached the front side rather than the center C in the front-back direction L.
  • the joint portion 82 is provided on the entire inner side from the outer edge of the absorber 40 in the width direction.
  • the joining portion 82 is preferably 1.5 cm, more preferably 1.0 cm, more preferably 1.0 cm, more preferably the outer edge of the absorbent body 40 in the width direction W at least in the region behind the center C of the absorbent article in the front-rear direction L. Preferably, it reaches the outside in the width direction by a distance within 0.5 cm.
  • the rear part of the absorbent article in the front-rear direction L from the center C is a region facing the buttocks of the wearer or the upper part thereof. Therefore, this region is subjected to strong pressure in the posture where the wearer is sitting and the posture where the wearer is sleeping.
  • the absorber 40 that has absorbed the liquid is subjected to a strong pressure, the liquid that has oozed out of the absorber 40 may leak to the outer edge of the absorber 40 in the width direction.
  • the joining portion 82 is located outside the outer edge of the absorbent body 40 in the width direction W from the outer edge of the absorbent body 40.
  • the sheets do not stand up in a region that receives strong pressure from the wearer's buttocks. Thereby, since the area
  • the rising point B1 of the inner gathers is determined by the portion located on the outermost side in the width direction among the roots of the inner gathers in the crotch region 25, that is, the portion located on the outermost side in the width direction among the edge lines where the inner gathers start rising in the crotch region 25.
  • the rising base point B1 is defined by a portion located on the outermost side in the width direction among the joint portions 82 in the crotch region 25 (see FIG. 15).
  • the joint area A shown in FIGS. 13 to 15 is applied to the joint area where the first portion 64a and the second portion 64b of the moisture-permeable sheet of the embodiment shown in FIGS. 8 and 9 are joined. it can.
  • the moisture-permeable sheet does not exist in the center in the width direction. Therefore, it is only necessary to provide a joint in a region obtained by removing the central region in the width direction from the region A of the joint shown in FIGS.
  • the structure of the absorber shown in FIGS. 3, 5, and 7 can be applied to the fourth to eighth embodiments.

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

La présente invention permet d'augmenter la perméabilité à l'air d'une région au voisinage d'ouvertures de jambe d'un article absorbant, tout en maintenant l'effet de prévention de fuite de liquide. Cet article absorbant comprend : des ouvertures de jambe (35) disposées sur les deux côtés de direction de largeur W, les ouvertures de jambe (35) étant disposées autour des jambes d'un porteur lorsqu'il est porté ; et une feuille anti-fuite (60a) disposée sur le côté non-peau d'un corps absorbant (40), la feuille anti-fuite (60a) s'étendant davantage vers l'extérieur dans la direction de largeur W que le corps absorbant (40). Au moins les ouvertures de jambe (35) comportent des feuilles perméables à l'humidité (64), (70) ayant une perméabilité à l'humidité supérieure à celle de la feuille anti-fuite (60a), les feuilles perméables à l'humidité (64), (70) étant disposées sur le côté peau de la feuille anti-fuite (60a). Les feuilles perméables à l'humidité (64), (70) ont une partie de jonction reliée à la feuille anti-fuite (60a), et une fronce intérieure (74) qui peut s'élever depuis la feuille anti-fuite (60a), la fronce intérieure (74) n'étant pas reliée à la feuille anti-fuite. La fronce intérieure (74) s'étend vers l'extérieur dans la direction de largeur W depuis un point de base d'élévation (B1). La fronce intérieure (74) a un premier élément élastique (75) qui s'étend et se contracte dans une direction longitudinale (L).
PCT/JP2017/004668 2016-02-29 2017-02-09 Article absorbant WO2017150123A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016-038303 2016-02-29
JP2016038303 2016-02-29
JP2016124890A JP6181818B1 (ja) 2016-02-29 2016-06-23 吸収性物品
JP2016-124890 2016-06-23

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WO2017150123A1 true WO2017150123A1 (fr) 2017-09-08

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TW (1) TW201740897A (fr)
WO (1) WO2017150123A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019217385A (ja) * 2019-10-02 2019-12-26 ユニ・チャーム株式会社 低体重児用おむつ
JP2021185926A (ja) * 2020-05-25 2021-12-13 王子ホールディングス株式会社 おむつ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146651A (ja) * 1982-11-15 1984-08-22 ザ，プロクタ−，エンド，ギヤンブル，カンパニ− 通気性脚カフスを有する使い捨て衣料
JPH03280951A (ja) * 1990-03-12 1991-12-11 Uni Charm Corp 使い捨てパンツ型着用物品
JPH0824290A (ja) * 1994-07-14 1996-01-30 Uni Charm Corp 使い捨て着用物品
JPH08322876A (ja) * 1995-05-30 1996-12-10 Uni Charm Corp 使い捨ての体液吸収性着用物品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146651A (ja) * 1982-11-15 1984-08-22 ザ，プロクタ−，エンド，ギヤンブル，カンパニ− 通気性脚カフスを有する使い捨て衣料
JPH03280951A (ja) * 1990-03-12 1991-12-11 Uni Charm Corp 使い捨てパンツ型着用物品
JPH0824290A (ja) * 1994-07-14 1996-01-30 Uni Charm Corp 使い捨て着用物品
JPH08322876A (ja) * 1995-05-30 1996-12-10 Uni Charm Corp 使い捨ての体液吸収性着用物品

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