WO2017131064A1 - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
WO2017131064A1
WO2017131064A1 PCT/JP2017/002642 JP2017002642W WO2017131064A1 WO 2017131064 A1 WO2017131064 A1 WO 2017131064A1 JP 2017002642 W JP2017002642 W JP 2017002642W WO 2017131064 A1 WO2017131064 A1 WO 2017131064A1
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WO
WIPO (PCT)
Prior art keywords
sheet
absorbent article
folded
width direction
wing
Prior art date
Application number
PCT/JP2017/002642
Other languages
French (fr)
Japanese (ja)
Inventor
由美 則元
Original Assignee
大王製紙株式会社
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 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2017131064A1 publication Critical patent/WO2017131064A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/475Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/476Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment

Definitions

  • the present invention relates to absorbent articles such as sanitary napkins, panty liners, incontinence pads, disposable paper diapers for absorbing bodily fluids such as menstrual blood, vaginal discharge, and urine, and more specifically, on both sides of the skin contact surface side.
  • the present invention relates to an absorbent article in which a hollow cushion portion that bulges outward in a mounted state is formed by the provided side seat.
  • an absorbent body is interposed between a liquid-impermeable back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric and a liquid-permeable surface sheet such as a nonwoven fabric or a liquid-permeable plastic sheet. It has been known.
  • a pair of three-dimensional gathers are formed by arranging elastic members on both sides along the vertical direction, and each of the pair of three-dimensional gathers is a spunbond nonwoven fabric or a spunbond layer.
  • a meltblown layer which is formed using a sheet raised in at least a part of the laminated nonwoven fabric, the raised sheet is folded back into two or more layers, and the stretched sheet 1 in the longitudinal direction is folded between the folded sheets.
  • sanitary napkins 1 are worn on the widthwise inner edges 6c and 6d of the side sheets 6a and 6b, and the center of the sanitary napkins 1 is moved by the movement of the wearer's feet.
  • the side sheets 6a and 6b of the central part B can stand up to the skin contact surface side and be able to act as a leak-proof wall by being bent with the compression part 30 as a base point.
  • An absorbent article is disclosed.
  • the leak-proof wall is formed by raising the inner edge in the width direction of the side sheet, it is difficult to obtain a standing height sufficient to dam body fluid. In some cases, the leak-proof wall did not adhere to the skin surface and caused side leakage. In addition, since the standing height of the leak-proof wall is not so high, both side edges of the absorber hit the skin and it is easy to feel the hardness of the absorber, which may lead to an uncomfortable feeling when worn.
  • the main problem of the present invention is to provide an absorbent article that can easily follow the movement around the legs, can reduce the uncomfortable feeling at the time of wearing, and is excellent in the effect of preventing side leakage.
  • an absorbent body is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, and the both sides on the skin contact surface side are respectively
  • a side sheet is provided along the longitudinal direction, and the crotch part of the underwear is wound on both sides by the part of the liquid-impervious back sheet and the part of the side sheet that extend sideways.
  • the side sheet is bonded to the liquid-permeable surface sheet in an inner bonding region in which the inner side in the width direction is provided along the longitudinal direction, and the outer side in the width direction is provided along the outline of the absorbent article.
  • a folded portion is formed along the longitudinal direction that is joined to the liquid-impervious backsheet in the outer joining region, and the side sheet is folded back in the width direction between the inner joining region and the outer joining region.
  • the folded portion is folded in the width direction, the folded portion is joined to the side sheet at both longitudinal ends, and in the longitudinal range including the wing-shaped flap, between the inner joining region and the outer joining region.
  • a non-joining region that does not join the side sheet to any member is formed, While folding the wing-shaped flap and wearing the absorbent article in which the absorbent article is curved along the roundness in the front-rear direction of the body, the side sheet of the folded portion is deployed in the non-joined region, An absorbent article is provided in which a hollow cushion portion bulging outward is formed.
  • the invention according to claim 1 is an absorbent article provided with side sheets on both sides on the skin contact surface side and formed with outwardly projecting wing-like flaps on both sides of the main body.
  • the side sheet As the side sheet, the inner side in the width direction is bonded to the liquid-permeable surface sheet in the inner bonding region, and the outer side in the width direction is bonded to the liquid-impermeable back sheet in the outer bonding region.
  • a folded portion formed by folding the side sheet in the width direction is formed along the longitudinal direction between the joint region and the joining region, and the folded portion is folded in the width direction.
  • a structure bonded to a sheet is used.
  • region which does not join the said side sheet to any member is formed between the said inner side joining area
  • the side sheet of the folded portion is developed to form a hollow cushion portion that bulges outward.
  • the side seat Since the side seat is not joined to any member in the cushion portion, the side seat can be moved freely without being constrained, so that it is easy to follow the movement around the legs, and the uncomfortable feeling at the time of wearing can be reduced. At the same time, the side sheet of the cushion part comes into close contact with the skin surface and has an excellent side leakage prevention effect.
  • the non-joining region is formed continuously from the inner position to the wing-shaped flap from the base end of the wing-shaped flap in the width direction of the absorbent article.
  • the range of the non-bonding region with respect to the width direction of the absorbent article is shown, and from the base end of the wing-shaped flap to the wing-shaped flap, that is, the wing-shaped flap base end It is preferable to form continuously from the inner side to the outer side with respect to the folding line. As a result, the range in which the side seat is not restrained starts from the inner side of the base end of the wing-shaped flap. A part comes to be formed.
  • the non-joining region is formed in a range that is longer on the front side and the rear side than the base end portion of the wing-shaped flap with respect to the longitudinal direction of the absorbent article.
  • the folded portion of the side sheet is folded outward in the width direction.
  • the cushion portion when the side sheet of the folded portion is unfolded at the time of wearing, the cushion portion has a cross-sectional shape in which the outer side in the width direction is relatively greatly bulged, and adhesion between the skin side surface of the cushion portion and the skin surface Will be improved.
  • the folded portion of the side sheet is folded inward in the width direction.
  • an inclined wall inclined inward in the width direction is formed on the inner side in the width direction of the cushion portion.
  • the uncomfortable feeling at the time of wearing due to the elastic stretchable member hitting the skin does not occur.
  • the side seat is made of an air-through nonwoven fabric having relatively high rigidity in order to easily form a hollow cushion portion by the side sheet and to easily maintain the hollow shape of the cushion portion. ing.
  • the side sheet is made of a non-woven fabric containing polyethylene terephthalate fibers so that a hollow cushion part by the side sheet can be easily formed and the hollow shape of the cushion part can be easily maintained. Yes.
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 (transverse sectional view of the sanitary napkin 1).
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 (transverse sectional view of the sanitary napkin 1).
  • FIG. 2 is an enlarged cross-sectional view of a side sheet 7 portion taken along the line II-II in FIG.
  • FIG. 2A is a development view of the sanitary napkin 1 showing a joining region between the side sheet 7 and the lower layer side member, and FIG. It is a cross-sectional view which shows the mounting state to the undergarment 30 of the sanitary napkin 1.
  • FIG. 8 is a view taken along line VIII-VIII in FIG. 7. It is the IX-IX arrow directional view of FIG. It is a transverse cross section showing the wearing state to underwear 30 of sanitary napkin 1A concerning the 2nd form example.
  • the sanitary napkin 1 As shown in FIGS. 1 to 3, the sanitary napkin 1 according to the first embodiment quickly transmits a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., and menstrual blood or a cage.
  • the outer edge portion of the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is an adhesive such as hot melt or heat seal.
  • the liquid-impervious back sheet 2 and the side sheet 7 which are bonded by an adhesive means such as an ultrasonic seal and extend laterally from the side edge of the absorbent body 4 at both side edges thereof are hot-melted.
  • the outer periphery flap part in which the absorber 4 does not exist is formed on the outer periphery by bonding with an adhesive such as an adhesive, heat sealing, ultrasonic sealing or the like.
  • the structure of the sanitary napkin 1 will be described in detail.
  • a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used.
  • a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film.
  • those having moisture permeability tend to be used from the viewpoint of preventing stuffiness.
  • This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.
  • the liquid permeable top sheet 3 is preferably a non-woven fabric.
  • the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton.
  • a nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used.
  • the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability
  • the thermal bond method and the air-through method are excellent in terms of being bulky and having high compression recovery properties.
  • a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath.
  • the absorbent body 4 interposed between the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is, for example, a mixture of a superabsorbent resin in pulp or a mixture of chemical fibers in the pulp. In addition, those mixed with a superabsorbent resin are used. As shown in the figure, it is desirable that the absorbent body 4 is surrounded by the encapsulating sheet 5 in order to maintain the shape and quickly diffuse menstrual blood and prevent reversal of once absorbed menstrual blood and the like.
  • the pulp include chemical fibers obtained from wood, cellulose fibers such as molten pulp, and those made of artificial cellulose fibers such as rayon and acetate. It is preferably used in terms of price.
  • an air-laid absorber that can reduce the bulk may be used.
  • the thickness of the absorber 4 is 8 mm or less, preferably about 1 to 4 mm.
  • a hollow cushion portion 20 bulging outward is formed by the side seats 7 disposed on both side portions on the skin contact surface side.
  • the cushion part 20 is crushed by leg pressure or the like, the side edges of the absorbent body 4 hit the skin, and it becomes easy to feel uncomfortable due to the hardness of the absorbent body 4. It is preferable to make it relatively thin compared to the above.
  • synthetic fibers may be mixed in the absorber 4.
  • synthetic fiber for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be a mixture.
  • a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can be used.
  • hydrophobic fiber it is desirable to use a synthetic fiber that has been surface-treated with a hydrophilizing agent so as to have an affinity for body fluids.
  • the superabsorbent resin examples include cross-linked polyacrylate, self-crosslinked polyacrylate, saponified acrylate-vinyl acetate copolymer cross-linked, isobutylene / maleic anhydride copolymer cross-linked, Examples include cross-linked polysulfonates, and partially cross-linked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, those based on acrylic acid or acrylate that are excellent in water absorption and water absorption speed are preferred. In the production process of the highly water-absorbent resin having the water absorption performance, the water absorption force and the water absorption speed can be adjusted by adjusting the crosslinking density and the crosslinking density gradient.
  • the content of the highly water-absorbent resin is desirably 10 to 60% of the weight of the absorber.
  • the content of the superabsorbent resin is less than 10%, sufficient absorbability cannot be provided, and when it exceeds 60%, the entanglement between the pulp fibers disappears, the sheet strength decreases, and tears, cracks, etc. Is likely to occur.
  • the encapsulating sheet 5 surrounding the absorber 4 when the encapsulating sheet 5 surrounding the absorber 4 is provided, the encapsulating sheet 5 is interposed between the liquid-permeable surface sheet 3 and the absorber 4 as a result.
  • the encapsulating sheet 5 is made of crepe paper, the encapsulating sheet 5 having excellent absorbability diffuses body fluid quickly and prevents reversal of these menstrual blood and the like.
  • side sheets 7 and 7 are provided on both sides of the sanitary napkin 1 on the skin contact surface side along the longitudinal direction and over the substantially entire length of the napkin 1, respectively.
  • Wings-like flaps W, W projecting outward on both sides of the main body part by part of the liquid-impervious back sheet 2 extending partly laterally and also laterally extending. Is formed.
  • the wing-shaped flaps W, W are used by being folded outward at a fold line RL (FIG. 1) at the base end so that the crotch portion of the undergarment 30 is wrapped around the wing-shaped flap W.
  • the adhesive layer (not shown) provided on the outer surface of the back sheet 2 is attached to the outer surface of the underwear 30 so as to prevent misalignment with the underwear.
  • a hollow cushion portion 20 that bulges to the skin side is formed by the widthwise inner portion of the side seat 7. The cushion portion 20 will be described in detail later.
  • a water repellent nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of important functions. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric.
  • a method of polymerizing a compound having a hydrophilic group for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, ,
  • a metal salt such as stannic chloride
  • partially dissolving the surface to make it porous and depositing metal hydroxides to swell or make the synthetic fiber porous, applying capillary action to make it hydrophilic
  • capillary action to make it hydrophilic It is desirable to use a hydrophilic treated non-woven fabric provided with.
  • a pressing groove 10 on the surface side of the liquid-permeable surface sheet 3 so as to surround the blood drainage port H.
  • the compressed groove 10 can be provided in various plane patterns.
  • a central squeezing groove 11 having a generally oval closed shape that is long in the longitudinal direction of the napkin so as to surround the blood drainage port H, and a front side from the central squeezing groove 11
  • the front squeezing groove 12 having a substantially inverted U shape with an opening on the side of the blood drainage port H and the rear side of the central squeezing groove 11 are spaced apart and the side of the blood drainage port H is opened.
  • the U-shaped rear pressing groove 13 and the central pressing groove 11 are arranged on both sides of the central pressing groove 11 so as to be spaced apart from each other in the width direction, and are substantially parallel to both sides of the central pressing groove 11. It is comprised from the both-side pressing grooves 14 and 14 along the substantially longitudinal direction.
  • the side sheet 7 has an inner joint region in which an end portion on the inner side in the width direction is folded back outward in the width direction, and the folded portion is provided along the longitudinal direction.
  • 21 is joined to the liquid-permeable surface sheet 3.
  • the outer side in the width direction of the side sheet 7 is joined to the liquid-impermeable back sheet 2 at an outer joining region 22 provided along the outline of the sanitary napkin 1.
  • Each of the inner bonding area 21 and the outer bonding area 22 is an area where a hot melt adhesive is applied by a coating method such as spraying, slot coating, spiral, curtain, etc., and is continuous over almost the entire length in the napkin longitudinal direction. Is provided.
  • the side sheet 7 is formed with a folded portion 23 formed by folding back the side sheet 7 in the width direction between the inner joint region 21 and the outer joint region 22, and the folded portion 23. Is folded in the width direction, and as shown in FIG. 3 and FIG. 5 (B), the folded portion is folded into the side sheet 7 at the folded portion joining regions 24 and 24 provided at both ends in the napkin longitudinal direction. It is joined to.
  • the folded portion 23 is a portion that is folded only once so that the back surfaces (surfaces on the liquid-impermeable back sheet 2 side) of the side sheets 7 face each other at the intermediate portion in the width direction of the side sheet 7.
  • the folded portion 23 is formed at an intermediate position along the side sheet 7 that connects the inner bonding area 21 and the outer bonding area 22, and the inner bonding area 21 is formed on the side sheet 7 as shown in FIG. 4.
  • the inner end in the width direction is provided at a portion folded back outward in the width direction, it is formed in the middle of the inner joining region 21 and the outer joining region 22 along the folded side sheet 7.
  • a folded portion 23 is located above the region 21. In the example shown in FIGS. 2 to 5, the folded portion 23 is folded outward in the width direction.
  • the side sheet 7 is non-joined in which the side sheet 7 is not joined to any member between the inner joint region 21 and the outer joint region 22 in the range of the napkin longitudinal direction including the wing-shaped flap W. Region 25 is formed.
  • the side sheet 7 is not joined to any member, the side sheet 7 is not joined to other members such as the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2 and the side sheets 7 are not joined to each other. I mean. Since the side sheet 7 is not bonded in the non-bonded region 25, the side sheet 7 can move relatively freely without being restrained.
  • the intermediate position along the side sheet 7 connecting the inner joint region 21 and the outer joint region 22 is the same as described above.
  • the inner joint region 21 is provided in a portion where the end portion on the inner side in the width direction of the side seat 7 is folded back outward in the width direction, the inner joint region 21 is joined by the inner joint region 21.
  • the portion of the side sheet 7 laminated on the skin side of the side sheet 7 that has been formed also becomes the non-bonded region 25.
  • the boundary between the inner joint region 21 and the outer joint region 22 may not be clear at both ends in the longitudinal direction, a certain range along the inner side is the inner joint region 21, and the remaining outer portion is the outer joint region 22. It can be.
  • the wing-shaped flap W is folded outward so that the crotch portion of the undergarment 30 is wound, and the sanitary napkin 1 is curved along the roundness in the front-rear direction of the body.
  • the side seat 7 of the folded portion 23 is developed in the non-joining region 25, and a hollow cushion portion 20 bulging outward is formed.
  • the side sheet 7 is pulled by folding the wing-shaped flap W outward to form the folded portion 23.
  • the upper side sheet 7 bulges upward to form a hollow cushion portion 20.
  • the upper side sheet 7 portion that bulges upward is located outside in the width direction with the width direction inner edge of the inner bonding region 21 as a base point. Since the inclined surface is inclined toward the skin side, the inclined surface easily fits the skin surface, and the adhesion with the skin can be improved.
  • the side seat 7 since the side seat 7 is not joined to any member in the cushion portion 20, the side seat 7 can move freely without being restrained. Can be reduced, and the side sheet 7 of the cushion part 20 can be in close contact with the skin surface, resulting in an excellent body fluid side leakage prevention effect.
  • the non-joining region 25 is positioned on the inner side of the sanitary napkin 1 in the width direction from the base end of the wing-shaped flap W ( It is preferably formed continuously from the width direction center side) to the wing-shaped flap W. That is, the non-joining region 25 is provided continuously from the inner side to the outer side in the width direction with respect to the fold line RL at the base end portion of the wing-shaped flap W.
  • the length A of the non-bonded region 25 in the napkin width direction is 20 to 50 mm, preferably 30 to 40 mm. In the example shown in FIG.
  • the length A is provided with an inner joining region 21 at a portion where the end portion on the inner side in the width direction of the side seat 7 is folded back to the outer side in the width direction.
  • region 22 is taken.
  • the non-bonding region 25 is preferably formed in a long range in the front side and the rear side from the base end portion of the wing-shaped flap W with respect to the longitudinal direction of the sanitary napkin 1. That is, the non-joining region 25 is provided in a range where at least the wing-shaped flap W exists.
  • the base end portion of the wing-shaped flap W is a portion of the fold line RL of the wing-shaped flap W that folds the wing-shaped flap W at the time of mounting.
  • the length B in the napkin longitudinal direction of the non-bonded region 25 is preferably formed longer than the length in the napkin longitudinal direction of the base end portion of the wing-shaped flap W, specifically 70 to 140 mm, preferably 90 to 120 mm. It is good to do.
  • the length B includes an inner joint region 21 and an outer joint region 22 in the inner joint region 21 and the outer joint region 22 that join the side sheet 7 to the lower layer side member. Is the distance in the longitudinal direction of the napkin between the positions at which separation begins in the width direction, and as shown in FIG. 5B, the folded portion joining region 24 for joining the folded portion 23 of the side sheet 7 to the side sheet 7 Is the distance between the fold joint regions 24, 24 at both ends. In FIG. 5, these distances are formed almost equal to each other, but if they are different, the shorter distance may be adopted.
  • the wing-shaped flaps W are generally located on both sides of the blood drainage port H of the wearer, by setting at least the range where the wing-shaped flaps W are present as the non-joining regions 25, both sides of the blood drainage port H Thus, the cushion part 20 is formed, and the followability to the movement around the leg and the side leakage prevention effect of body fluid are improved.
  • the folded portion 23 is formed with the side edge portion of the absorbent body 4 as a base end, and the folded end portion is folded outward in the width direction, and the folded end portion is the absorber 3. It is preferable to form so that it may extend outside a side edge.
  • the wing-shaped flap W is folded outward so as to wind the crotch portion of the underwear 30 when worn, the hollow cushion portion 20 that the side sheet 7 of the folded portion 23 expands and bulges to the skin side is provided. It becomes easier to form.
  • the folded width C of the folded portion 23 is 5 to 15 mm, preferably 8 to 12 mm.
  • the end portion on the inner side in the width direction of the side sheet 7 is folded back to the outer side in the width direction, and the folded portion is joined to the liquid-permeable surface sheet 3 in the inner joint region 21.
  • it may extend to the inner side in the width direction without folding back to the outer side in the width direction, and may be joined to the liquid-permeable surface sheet 3 in a state where the inner edge in the width direction of the side sheet 7 faces the inner side in the width direction.
  • the former forms the cushion portion 20
  • the skin contact of the cushion portion 20 is achieved by adding the bending resilience of the portion of the side seat 7 where the end portion on the inner side in the width direction is folded back outward in the width direction.
  • seat 7 should just be joined to the range containing the liquid-permeable surface sheet 3 in the said inner side joining area
  • the wing-shaped flap W is folded outward so that the crotch portion of the underwear is wound when worn, and the napkin is curved along the roundness in the front-rear direction of the body.
  • a hollow cushion portion 20 that bulges to the skin side is formed on the skin portion, and a hollow portion that bulges to the skin side can be formed without using an elastic elastic member.
  • a nonwoven fabric obtained by an appropriate processing method such as an air-through method, a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method can be used, but an air-through nonwoven fabric is used. Is particularly preferred.
  • the air-through is suitable for obtaining a relatively high-strength nonwoven fabric as compared with other processing methods, and the cushion portion 20 is easily formed when the hollow cushion portion 20 is formed by using the air-through nonwoven fabric. At the same time, the hollow shape of the cushion portion 20 is easily maintained.
  • the fineness of the fibers constituting the side sheet 7 is preferably 2.2 dtex or less, and the basis weight of the side sheet 7 is 15 to 30 g / m 2 , preferably 18 to 22 g / m 2 is preferable.
  • the side sheet 7 is preferably composed of a nonwoven fabric containing polyethylene terephthalate (PET) fibers.
  • PET polyethylene terephthalate
  • the polyethylene terephthalate fiber is generally a material having a high resistance to bending, a high bending resilience, and an excellent flexibility. For this reason, when the said side sheet 7 contains a polyethylene terephthalate fiber, the side sheet 7 of the folding
  • the blending ratio of the polyethylene terephthalate fiber is arbitrary, but it may be about 30 to 100% by weight, preferably about 50 to 90% by weight.
  • the side sheet 7 may have a multilayer structure of two or more layers, and at least the layer of the skin contact surface may include polyethylene terephthalate fibers.
  • the polyethylene terephthalate fiber may be a fiber made only of polyethylene terephthalate or a fiber containing polyethylene terephthalate.
  • the sanitary napkin 1A according to a second embodiment has a folded portion 23 of the side seat 7 in the width direction as shown in FIGS. It differs in that it is folded inward.
  • the liquid is permeable in the inner joint region 21 in which the end portion on the inner side in the width direction of the side sheet 7 extending toward the inner side in the width direction is provided along the longitudinal direction.
  • a folded portion 23 is formed along the longitudinal direction in which the side sheet 7 is folded in the width direction, just outside the width direction outer end of the inner bonded region 21.
  • the folded portion 23 is formed along the longitudinal direction. 23 is folded inward in the width direction, and the folded portion is joined to the side sheet 7 at the folded portion joining regions 24 at both ends in the napkin longitudinal direction.
  • the wing-shaped flap W is folded outward so as to wrap around the crotch portion of the underwear 30, and the sanitary napkin 1A is disposed in the front-rear direction of the body.
  • the side seat 7 of the folded portion 23 is unfolded in the non-joining region 25, and the hollow cushion portion 20 bulging outward is formed. It becomes like this.
  • the cushion portion 20 is configured such that the side seat 7 is pulled outward by folding the wing-shaped flap W outward, and the folded portion 23 folded inward along with this rises, and both sides constituting the folded portion 23.
  • the hollow cushion portion 20 has a sheet portion 23a on the inner side in the width direction among the two layers of the sheet portion constituting the folded portion 23, with the outer edge in the width direction of the inner joining region 21 as a base end on the skin side.
  • this inclined wall part constitutes a pocket-shaped leak-proof wall and effectively blocks the body fluid flowing toward the outside Will be able to.
  • the so-called daytime napkin in which the wing-shaped flap W is provided in the substantially central portion of the napkin in the longitudinal direction has been described.
  • the present invention can be similarly applied to a so-called night napkin in which a hip hold flap covering the buttock is formed.
  • the non-joining region 25 is formed in a range in which the rear side is relatively longer in the longitudinal direction than the front side of the wing-shaped flap W.
  • SYMBOLS 1 Sanitary napkin, 2 ... Impervious back sheet, 3 ... Liquid permeable surface sheet, 4 ... Absorber, 5 ... Encapsulated sheet, 7 ... Side sheet, 10 ... Squeeze groove, 11 ... Central squeeze groove, DESCRIPTION OF SYMBOLS 12 ... Front side compressed groove, 13 ... Rear side compressed groove, 14 ... Both sides compressed groove, 20 ... Cushion part, 21 ... Inner junction area, 22 ... Outer junction area, 23 ... Folding part, 24 ... Folding part junction area, 25 ... Non-joining area, 30 ... underwear

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Abstract

[Problem] To provide an absorbent article that easily deforms in response to leg movements, that can reduce discomfort when worn, and that has an excellent side leakage prevention effect. [Solution] The inner sides of side sheets 7 in the width direction are joined on the bottom layer side at inner side junction regions 21, and the outer sides in the width direction are joined on the bottom layer at outer side junction regions 22. Folded-back sections 23 are formed, wherein the side sheets 7 are folded back in the width direction between the inner side junction regions 21 and the outer side junction regions 22, said folded-back sections 23 being folded in the width direction, and the resulting folded portions are joined to the side sheets 7 at both end sections in the longitudinal direction. In a range in the longitudinal direction which includes wing-shaped flaps W, non-junction regions 25 where the side sheets 7 are not joined to any members are formed between the inner side junction regions 21 and the outer side junction regions 22. When an absorbent article is being worn, in the non-junction regions 25, the side sheets 7 of the folded-back sections 23 expand, and hollow cushion sections 20 that bulge outwards are formed.

Description

吸収性物品Absorbent articles
 本発明は、経血、おりもの、尿などの体液を吸収するための生理用ナプキン、パンティライナー、失禁パッド、使い捨て紙おむつなどの吸収性物品に係り、詳しくは肌当接面側の両側部に備えられたサイドシートによって、装着状態で外方に膨出した中空状のクッション部が形成されるようにした吸収性物品に関する。 The present invention relates to absorbent articles such as sanitary napkins, panty liners, incontinence pads, disposable paper diapers for absorbing bodily fluids such as menstrual blood, vaginal discharge, and urine, and more specifically, on both sides of the skin contact surface side. The present invention relates to an absorbent article in which a hollow cushion portion that bulges outward in a mounted state is formed by the provided side seat.
 従来より、前記吸収性物品として、ポリエチレンシートまたはポリエチレンシートラミネート不織布などの不透液性裏面シートと、不織布または透液性プラスチックシートなどの透液性表面シートとの間に吸収体を介在したものが知られている。 Conventionally, as the absorbent article, an absorbent body is interposed between a liquid-impermeable back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric and a liquid-permeable surface sheet such as a nonwoven fabric or a liquid-permeable plastic sheet. It has been known.
 この種の吸収性物品にも幾多の改良が重ねられ、体液漏れを防止するための手段が種々講じられている。これら体液漏れ防止手段の一つとして、肌当接面側の両側部に横漏れの障壁となる防漏壁を形成する技術が存在する。 Many improvements have been made to this type of absorbent article, and various means for preventing body fluid leakage have been taken. As one of these body fluid leakage prevention means, there is a technique for forming a leakage prevention wall as a side leakage barrier on both side portions on the skin contact surface side.
 例えば、下記特許文献1では、縦方向に沿う両側部に、一対の立体ギャザーが、弾性部材を配することによって形成され、一対の前記立体ギャザーのそれぞれは、スパンボンド不織布、又はスパンボンドの層とメルトブローンの層との積層不織布の少なくとも一部を起毛しているシートを用いて形成され、前記起毛しているシートを2層以上に折り返し、折り返されたシート間に縦方向に伸長状態の1本以上の弾性部材を配して形成されている吸収性物品が開示されている。 For example, in the following Patent Document 1, a pair of three-dimensional gathers are formed by arranging elastic members on both sides along the vertical direction, and each of the pair of three-dimensional gathers is a spunbond nonwoven fabric or a spunbond layer. And a meltblown layer, which is formed using a sheet raised in at least a part of the laminated nonwoven fabric, the raised sheet is folded back into two or more layers, and the stretched sheet 1 in the longitudinal direction is folded between the folded sheets An absorbent article formed by arranging more than elastic members is disclosed.
 また、下記特許文献2では、段落[0050]に、サイドシート6a、6bの幅方向内側縁6c、6dは、生理用ナプキン1が着用され、着用者の足の動きによって生理用ナプキン1の中央部Bが変形された場合に、圧縮部30を基点として折れ曲がることにより、中央部Bのサイドシート6a、6bが肌当接面側に立ち上がって防漏壁の役割を果たすことができるようにした吸収性物品が開示されている。 Also, in Patent Document 2 below, in paragraph [0050], sanitary napkins 1 are worn on the widthwise inner edges 6c and 6d of the side sheets 6a and 6b, and the center of the sanitary napkins 1 is moved by the movement of the wearer's feet. When the part B is deformed, the side sheets 6a and 6b of the central part B can stand up to the skin contact surface side and be able to act as a leak-proof wall by being bent with the compression part 30 as a base point. An absorbent article is disclosed.
特開2013-5879号公報JP 2013-5879 A 特開2008-289622号公報JP 2008-289622 A
 上記特許文献1、2記載の吸収性物品では、ウイング状フラップにおいて立体ギャザーを構成するサイドシートと裏面シートとがほぼ全面で接合されていると考えられるため、装着時にウイング状フラップを下着のクロッチ部分を巻き込むように外側に折り返した際、サイドシートが外側に引っ張られて立体ギャザーが脚周りの動きに追従しにくくなる問題があった。 In the absorbent articles described in Patent Documents 1 and 2, since it is considered that the side sheet and the back sheet constituting the three-dimensional gathers are joined almost entirely on the wing-shaped flap, the wing-shaped flap is attached to the crotch of the underwear at the time of wearing. When folded back so as to entangle the part, there was a problem that the side sheet was pulled outward, making it difficult for the three-dimensional gather to follow the movement around the legs.
 また、上記特許文献1記載の吸収性物品では、弾性部材を配することによって立体ギャザーが形成されているため、弾性部材が肌に当たるなどして装着時に違和感を生じる場合があった。 Further, in the absorbent article described in Patent Document 1, since the three-dimensional gather is formed by arranging the elastic member, there is a case where the elastic member hits the skin, which causes a sense of incongruity at the time of wearing.
 更に、上記特許文献2記載の吸収性物品では、防漏壁がサイドシートの幅方向内側縁を起立させることによって形成されているため、体液を堰き止めるのに十分な起立高さが得られにくく、防漏壁が肌面に密着せず横漏れを生じる場合があった。また、防漏壁の起立高さがそれほど高くないため、吸収体の両側縁などが肌に当たって吸収体の硬さを感じやすく、装着時の違和感につながるおそれがあった。 Furthermore, in the absorbent article described in Patent Document 2, since the leak-proof wall is formed by raising the inner edge in the width direction of the side sheet, it is difficult to obtain a standing height sufficient to dam body fluid. In some cases, the leak-proof wall did not adhere to the skin surface and caused side leakage. In addition, since the standing height of the leak-proof wall is not so high, both side edges of the absorber hit the skin and it is easy to feel the hardness of the absorber, which may lead to an uncomfortable feeling when worn.
 そこで本発明の主たる課題は、脚周りの動きに追従しやすく、装着時の違和感が低減できるとともに、横漏れ防止効果に優れるようにした吸収性物品を提供することにある。 Therefore, the main problem of the present invention is to provide an absorbent article that can easily follow the movement around the legs, can reduce the uncomfortable feeling at the time of wearing, and is excellent in the effect of preventing side leakage.
 上記課題を解決するために請求項1に係る本発明として、透液性表面シートと不透液性裏面シートとの間に吸収体が介在されるとともに、肌当接面側の両側部にそれぞれ長手方向に沿ってサイドシートが備えられ、側方に延在させた前記不透液性裏面シートの一部と前記サイドシートの一部とによって両側部にそれぞれ装着時に下着のクロッチ部分を巻き込むように外側に折り返して使用されるウイング状フラップが形成された吸収性物品において、
 前記サイドシートは、幅方向内側が長手方向に沿って設けられた内側接合領域にて前記透液性表面シートに接合されるとともに、幅方向外側が吸収性物品の外形線に沿って設けられた外側接合領域にて不透液性裏面シートに接合され、前記内側接合領域と外側接合領域との間に該サイドシートを幅方向に折り返した折り返し部が長手方向に沿って形成されるとともに、該折り返し部が幅方向に折り畳まれ、この折り畳み部分が長手方向の両端部で該サイドシートに接合され、前記ウイング状フラップを含む長手方向の範囲において、前記内側接合領域と外側接合領域との間に前記サイドシートをいずれの部材にも接合しない非接合領域が形成され、
 前記ウイング状フラップを折り返すとともに、前記吸収性物品を身体の前後方向の丸みに沿って湾曲させた前記吸収性物品の装着状態で、前記非接合領域において、前記折り返し部のサイドシートが展開され、外方に膨出した中空状のクッション部が形成されるようにしたことを特徴とする吸収性物品が提供される。
In order to solve the above-mentioned problem, as the present invention according to claim 1, an absorbent body is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, and the both sides on the skin contact surface side are respectively A side sheet is provided along the longitudinal direction, and the crotch part of the underwear is wound on both sides by the part of the liquid-impervious back sheet and the part of the side sheet that extend sideways. In an absorbent article formed with a wing-shaped flap that is used by being folded back to the outside,
The side sheet is bonded to the liquid-permeable surface sheet in an inner bonding region in which the inner side in the width direction is provided along the longitudinal direction, and the outer side in the width direction is provided along the outline of the absorbent article. A folded portion is formed along the longitudinal direction that is joined to the liquid-impervious backsheet in the outer joining region, and the side sheet is folded back in the width direction between the inner joining region and the outer joining region. The folded portion is folded in the width direction, the folded portion is joined to the side sheet at both longitudinal ends, and in the longitudinal range including the wing-shaped flap, between the inner joining region and the outer joining region. A non-joining region that does not join the side sheet to any member is formed,
While folding the wing-shaped flap and wearing the absorbent article in which the absorbent article is curved along the roundness in the front-rear direction of the body, the side sheet of the folded portion is deployed in the non-joined region, An absorbent article is provided in which a hollow cushion portion bulging outward is formed.
 上記請求項1記載の発明は、肌当接面側の両側部にそれぞれサイドシートを備えるとともに、本体部分の両側部に外方に突出したウイング状フラップが形成された吸収性物品である。前記サイドシートとして、幅方向内側が内側接合領域にて透液性表面シートに接合されるとともに、幅方向外側が外側接合領域にて不透液性裏面シートに接合され、これら内側接合領域と外側接合領域との間に該サイドシートを幅方向に折り返した折り返し部が長手方向に沿って形成されるとともに、該折り返し部が幅方向に折り畳まれ、この折り畳み部分が長手方向の両端部で該サイドシートに接合された構造のものを用いている。また、前記サイドシートは、前記ウイング状フラップを含む長手方向の範囲において、前記内側接合領域と外側接合領域との間に前記サイドシートをいずれの部材にも接合しない非接合領域が形成されている。そして、前記ウイング状フラップを下着のクロッチ部分を巻き込むように外側に折り返すとともに、吸収性物品を身体の前後方向の丸みに沿って湾曲させた吸収性物品の装着状態で、前記非接合領域において、前記折り返し部のサイドシートが展開され、外方に膨出した中空状のクッション部が形成されるようにしている。前記クッション部ではサイドシートがいずれの部材にも接合されていないため、前記サイドシートが拘束されず自由に動くことができるので、脚周りの動きに追従しやすく、装着時の違和感が軽減できるようになるとともに、前記クッション部のサイドシートが肌面に密着して横漏れ防止効果に優れるようになる。 The invention according to claim 1 is an absorbent article provided with side sheets on both sides on the skin contact surface side and formed with outwardly projecting wing-like flaps on both sides of the main body. As the side sheet, the inner side in the width direction is bonded to the liquid-permeable surface sheet in the inner bonding region, and the outer side in the width direction is bonded to the liquid-impermeable back sheet in the outer bonding region. A folded portion formed by folding the side sheet in the width direction is formed along the longitudinal direction between the joint region and the joining region, and the folded portion is folded in the width direction. A structure bonded to a sheet is used. Moreover, the non-joining area | region which does not join the said side sheet to any member is formed between the said inner side joining area | region and an outer side joining area | region in the range of the longitudinal direction containing the said wing-shaped flap. . And while folding back the wing-shaped flap so that the crotch portion of the underwear is wound, and in the mounted state of the absorbent article that is curved along the roundness in the front-rear direction of the body, in the non-joining region, The side sheet of the folded portion is developed to form a hollow cushion portion that bulges outward. Since the side seat is not joined to any member in the cushion portion, the side seat can be moved freely without being constrained, so that it is easy to follow the movement around the legs, and the uncomfortable feeling at the time of wearing can be reduced. At the same time, the side sheet of the cushion part comes into close contact with the skin surface and has an excellent side leakage prevention effect.
 請求項2に係る本発明として、前記非接合領域は、吸収性物品の幅方向に対し、前記ウイング状フラップの基端より内側位置から前記ウイング状フラップにかけて連続して形成されている請求項1記載の吸収性物品が提供される。 As the present invention according to claim 2, the non-joining region is formed continuously from the inner position to the wing-shaped flap from the base end of the wing-shaped flap in the width direction of the absorbent article. The absorbent article described is provided.
 上記請求項2記載の発明では、吸収性物品の幅方向に対する前記非接合領域の範囲を示したものであり、ウイング状フラップの基端より内側位置からウイング状フラップにかけて、すなわちウイング状フラップ基端の折り線に対して内側から外側にかけて連続して形成するのが好ましい。これにより、サイドシートが拘束されない範囲がウイング状フラップの基端より内側位置から開始するため、装着時にウイング状フラップを基端部で折り返すことにより、肌当接面側の両側部にそれぞれ前記クッション部が形成されるようになる。 In the second aspect of the present invention, the range of the non-bonding region with respect to the width direction of the absorbent article is shown, and from the base end of the wing-shaped flap to the wing-shaped flap, that is, the wing-shaped flap base end It is preferable to form continuously from the inner side to the outer side with respect to the folding line. As a result, the range in which the side seat is not restrained starts from the inner side of the base end of the wing-shaped flap. A part comes to be formed.
 請求項3に係る本発明として、前記非接合領域は、吸収性物品の長手方向に対し、前記ウイング状フラップの基端部より前側及び後側に長い範囲に形成されている請求項1、2いずれかに記載の吸収性物品が提供される。 According to a third aspect of the present invention, the non-joining region is formed in a range that is longer on the front side and the rear side than the base end portion of the wing-shaped flap with respect to the longitudinal direction of the absorbent article. An absorbent article according to any of the above is provided.
 上記請求項3記載の発明では、吸収性物品の長手方向に対する前記非接合領域の範囲を示したものであり、ウイング状フラップの基端部より前側及び後側に長い範囲に形成することにより、排血口部の両側に配置されるウイング状フラップより前後に長い範囲に前記クッション部が形成されるようになる。 In the invention of claim 3 above, it shows the range of the non-bonded region with respect to the longitudinal direction of the absorbent article, and by forming it in a long range on the front side and the rear side from the base end of the wing-shaped flap, The said cushion part comes to be formed in the range long before and behind the wing-shaped flap arrange | positioned at the both sides of the blood drainage part.
 請求項4に係る本発明として、前記折り返し部は、幅方向の外側に折り畳まれている請求項1~3いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 4, there is provided the absorbent article according to any one of claims 1 to 3, wherein the folded portion is folded outward in the width direction.
 上記請求項4記載の発明では、前記サイドシートの折り返し部を幅方向の外側に折り畳んでいる。この場合には、装着時に折り返し部のサイドシートが展開することにより、前記クッション部は、幅方向外側が相対的に大きく膨出した断面形状となり、クッション部の肌側面と肌面との密着性が向上するようになる。 In the invention according to claim 4, the folded portion of the side sheet is folded outward in the width direction. In this case, when the side sheet of the folded portion is unfolded at the time of wearing, the cushion portion has a cross-sectional shape in which the outer side in the width direction is relatively greatly bulged, and adhesion between the skin side surface of the cushion portion and the skin surface Will be improved.
 請求項5に係る本発明として、前記折り返し部は、幅方向の内側に折り畳まれている請求項1~3いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 5, there is provided the absorbent article according to any one of claims 1 to 3, wherein the folded portion is folded inward in the width direction.
 上記請求項5記載の発明では、前記サイドシートの折り返し部を幅方向の内側に折り畳んでいる。この場合には、装着時に折り返し部のサイドシートが展開することにより、前記クッション部の幅方向内側に、幅方向内側に傾斜した傾斜壁が形成されるようになるため、体液の堰き止め効果が向上するようになる。 In the invention according to claim 5, the folded portion of the side sheet is folded inward in the width direction. In this case, when the side sheet of the folded portion is unfolded at the time of wearing, an inclined wall inclined inward in the width direction is formed on the inner side in the width direction of the cushion portion. To improve.
 請求項6に係る本発明として、前記サイドシートには弾性伸縮部材が配設されていない請求項1~5いずれかに記載の吸収性物品が提供される。 As an aspect of the present invention according to claim 6, there is provided the absorbent article according to any one of claims 1 to 5, wherein the side sheet is not provided with an elastic stretch member.
 上記請求項6記載の発明では、サイドシートに弾性伸縮部材を配設していないため、弾性伸縮部材が肌に当たることによる装着時の違和感などが生じなくなる。 In the invention according to the sixth aspect, since the elastic stretchable member is not provided on the side sheet, the uncomfortable feeling at the time of wearing due to the elastic stretchable member hitting the skin does not occur.
 請求項7に係る本発明として、前記サイドシートは、エアスルー不織布からなる請求項1~6いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 7, there is provided the absorbent article according to any one of claims 1 to 6, wherein the side sheet is made of an air-through nonwoven fabric.
 上記請求項7記載の発明では、サイドシートによる中空状のクッション部を形成しやすくするととも、クッション部の中空形状を維持しやすくするため、前記サイドシートを比較的剛性が高いエアスルー不織布で構成している。 In the invention of claim 7, the side seat is made of an air-through nonwoven fabric having relatively high rigidity in order to easily form a hollow cushion portion by the side sheet and to easily maintain the hollow shape of the cushion portion. ing.
 請求項8に係る本発明として、前記サイドシートは、ポリエチレンテレフタレート繊維を含む不織布からなる請求項1~7いずれかに記載の吸収性物品が提供される。 As the present invention according to claim 8, there is provided the absorbent article according to any one of claims 1 to 7, wherein the side sheet is made of a nonwoven fabric containing polyethylene terephthalate fibers.
 上記請求項8記載の発明では、サイドシートによる中空状のクッション部を形成しやすくするとともに、クッション部の中空形状を維持しやすくするため、前記サイドシートとしてポリエチレンテレフタレート繊維を含む不織布で構成している。 In the invention of claim 8, the side sheet is made of a non-woven fabric containing polyethylene terephthalate fibers so that a hollow cushion part by the side sheet can be easily formed and the hollow shape of the cushion part can be easily maintained. Yes.
 以上詳説のとおり本発明によれば、脚周りの動きに追従しやすく、装着時の違和感が低減できるとともに、横漏れ防止効果に優れた吸収性物品が提供できるようになる。 As described in detail above, according to the present invention, it is possible to provide an absorbent article that can easily follow the movement around the legs, reduce a sense of incongruity at the time of wearing, and has an excellent side leakage prevention effect.
第1形態例に係る生理用ナプキン1の一部破断展開図である。It is a partial fracture development view of sanitary napkin 1 concerning the 1st form example. 図1のII-II線矢視図(生理用ナプキン1の横断面図)である。FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 (transverse sectional view of the sanitary napkin 1). 図1のIII-III線矢視図(生理用ナプキン1の横断面図)である。FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1 (transverse sectional view of the sanitary napkin 1). 図1のII-II線矢視図のサイドシート7部分を拡大した断面図である。FIG. 2 is an enlarged cross-sectional view of a side sheet 7 portion taken along the line II-II in FIG. (A)はサイドシート7と下層側の部材との接合領域、(B)はサイドシート7同士の接合領域を示す、生理用ナプキン1の展開図である。FIG. 2A is a development view of the sanitary napkin 1 showing a joining region between the side sheet 7 and the lower layer side member, and FIG. 生理用ナプキン1の下着30への装着状態を示す横断面図である。It is a cross-sectional view which shows the mounting state to the undergarment 30 of the sanitary napkin 1. FIG. 第2形態例に係る生理用ナプキン1Aの一部破断展開図である。It is a partially broken development view of sanitary napkin 1A concerning the 2nd form example. 図7のVIII-VIII線矢視図である。FIG. 8 is a view taken along line VIII-VIII in FIG. 7. 図7のIX-IX線矢視図である。It is the IX-IX arrow directional view of FIG. 第2形態例に係る生理用ナプキン1Aの下着30への装着状態を示す横断面図である。It is a transverse cross section showing the wearing state to underwear 30 of sanitary napkin 1A concerning the 2nd form example.
 以下、本発明の実施の形態について図面を参照しながら詳述する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
〔第1形態例〕
 第1形態例に係る生理用ナプキン1は、図1~図3に示されるように、ポリエチレンシート、ポリプロピレンシートなどからなる不透液性裏面シート2と、経血やおりものなどを速やかに透過させる透液性表面シート3と、これら両シート2,3間に介在された綿状パルプまたは合成パルプなどからなる吸収体4と、この吸収体4の形状保持および拡散性向上のために前記吸収体4を囲繞するクレープ紙又は不織布などからなる被包シート5と、肌当接面側の両側部にそれぞれ長手方向に沿って配設されたサイドシート7、7とから構成されている。また、前記吸収体4の周囲において、そのナプキン長手方向の前後端縁部では、前記不透液性裏面シート2と透液性表面シート3との外縁部がホットメルトなどの接着剤やヒートシール、超音波シール等の接着手段によって接合され、またその両側縁部では吸収体4の側縁よりも側方に延出している前記不透液性裏面シート2と前記サイドシート7とがホットメルトなどの接着剤やヒートシール、超音波シール等の接着手段によって接合され、外周に吸収体4の存在しない外周フラップ部が形成されている。
[First embodiment]
As shown in FIGS. 1 to 3, the sanitary napkin 1 according to the first embodiment quickly transmits a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., and menstrual blood or a cage. A liquid-permeable surface sheet 3 to be formed; an absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between the two sheets 2 and 3; and the absorption for improving shape retention and diffusibility of the absorbent body 4 It is comprised from the wrapping sheet 5 which consists of crepe paper or a nonwoven fabric etc. which surround the body 4, and the side sheets 7 and 7 each arrange | positioned along the longitudinal direction at the both sides by the side of a skin contact surface. Further, in the periphery of the absorbent body 4, at the front and rear end edges in the longitudinal direction of the napkin, the outer edge portion of the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is an adhesive such as hot melt or heat seal. The liquid-impervious back sheet 2 and the side sheet 7 which are bonded by an adhesive means such as an ultrasonic seal and extend laterally from the side edge of the absorbent body 4 at both side edges thereof are hot-melted. The outer periphery flap part in which the absorber 4 does not exist is formed on the outer periphery by bonding with an adhesive such as an adhesive, heat sealing, ultrasonic sealing or the like.
 以下、さらに前記生理用ナプキン1の構造について詳述すると、
 前記不透液性裏面シート2は、ポリエチレンやポリプロピレン等のオレフィン系樹脂シートなどの少なくとも遮水性を有するシート材が用いられるが、この他にポリエチレンシート等に不織布を積層したラミネート不織布や、さらには防水フィルムを介在して実質的に不透液性を確保した上で不織布シート(この場合には防水フィルムと不織布とで不透液性裏面シートを構成する。)などを用いることができる。近年はムレ防止の観点から透湿性を有するものが用いられる傾向にある。この遮水・透湿性シート材は、ポリエチレンやポリプロピレン等のオレフィン系樹脂中に無機充填剤を溶融混練してシートを成形した後、一軸または二軸方向に延伸することにより得られる微多孔性シートである。
Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impermeable back sheet 2, a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used. In addition, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film. In recent years, those having moisture permeability tend to be used from the viewpoint of preventing stuffiness. This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.
 次いで、前記透液性表面シート3は、不織布が好適に用いられる。不織布を構成する素材繊維としては、たとえばポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、ポリアミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維とすることができ、スパンレース法、スパンボンド法、サーマルボンド法、メルトブローン法、ニードルパンチ法等の適宜の加工法によって得られた不織布を用いることができる。これらの加工法の内、スパンレース法は柔軟性、スパンボンド法はドレープ性に富む点で優れ、サーマルボンド法及びエアスルー法は嵩高で圧縮復元性が高い点で優れている。また、融点の高い繊維を芯とし融点の低い繊維を鞘とした芯鞘型繊維やサイド-バイ-サイド型繊維、分割型繊維等の複合繊維を用いることができる。 Next, the liquid permeable top sheet 3 is preferably a non-woven fabric. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability, and the thermal bond method and the air-through method are excellent in terms of being bulky and having high compression recovery properties. In addition, it is possible to use a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath.
 前記不透液性裏面シート2と透液性表面シート3との間に介在される吸収体4は、たとえばパルプ中に高吸水性樹脂を混入したもの、或いはパルプ中に化学繊維を混入させるとともに、高吸水性樹脂を混入したものが使用される。前記吸収体4は、図示のように、形状保持、および経血等を速やかに拡散させるとともに、一旦吸収した経血等の逆戻りを防止するために被包シート5によって囲繞するのが望ましい。前記パルプとしては、木材から得られる化学パルプ、溶融パルプ等のセルロース繊維や、レーヨン、アセテート等の人工セルロース繊維からなるものが挙げられ、広葉樹パルプよりは繊維長の長い針葉樹パルプの方が機能および価格の面で好適に使用される。また、前記吸収体4として、嵩を小さくできるエアレイド吸収体を用いてもよい。 The absorbent body 4 interposed between the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is, for example, a mixture of a superabsorbent resin in pulp or a mixture of chemical fibers in the pulp. In addition, those mixed with a superabsorbent resin are used. As shown in the figure, it is desirable that the absorbent body 4 is surrounded by the encapsulating sheet 5 in order to maintain the shape and quickly diffuse menstrual blood and prevent reversal of once absorbed menstrual blood and the like. Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as molten pulp, and those made of artificial cellulose fibers such as rayon and acetate. It is preferably used in terms of price. Further, as the absorber 4, an air-laid absorber that can reduce the bulk may be used.
 前記吸収体4の厚みは、8mm以下、好ましくは1~4mm程度とするのが好ましい。本生理用ナプキン1では、後段で詳述するように、肌当接面側の両側部に配設されたサイドシート7によって外方に膨出した中空状のクッション部20を形成しているが、このクッション部20が脚圧などによって潰れたとき、吸収体4の側縁が肌に当たって吸収体4の硬さによる違和感が生じやすくなるため、これを解消する目的で吸収体4の厚みを通常のものに比べて相対的に薄くするのが好ましい。 The thickness of the absorber 4 is 8 mm or less, preferably about 1 to 4 mm. In the sanitary napkin 1, as will be described in detail later, a hollow cushion portion 20 bulging outward is formed by the side seats 7 disposed on both side portions on the skin contact surface side. When the cushion part 20 is crushed by leg pressure or the like, the side edges of the absorbent body 4 hit the skin, and it becomes easy to feel uncomfortable due to the hardness of the absorbent body 4. It is preferable to make it relatively thin compared to the above.
 また、前記吸収体4には合成繊維を混合しても良い。前記合成繊維は、例えばポリエチレン又はポリプロピレン等のポリオレフィン系、ポリエチレンテレフタレートやポリブチレンテレフタレート等のポリエステル系、ナイロンなどのポリアミド系、及びこれらの共重合体などを使用することができるし、これら2種を混合したものであってもよい。また、融点の高い繊維を芯とし融点の低い繊維を鞘とした芯鞘型繊維やサイド-バイ-サイド型繊維、分割型繊維などの複合繊維も用いることができる。前記合成繊維は、体液に対する親和性を有するように、疎水性繊維の場合には親水化剤によって表面処理したものを用いるのが望ましい。 Further, synthetic fibers may be mixed in the absorber 4. As the synthetic fiber, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be a mixture. In addition, a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can be used. In the case of a hydrophobic fiber, it is desirable to use a synthetic fiber that has been surface-treated with a hydrophilizing agent so as to have an affinity for body fluids.
 前記高吸水性樹脂としては、たとえばポリアクリル酸塩架橋物、自己架橋したポリアクリル酸塩、アクリル酸エステル-酢酸ビニル共重合体架橋物のケン化物、イソブチレン・無水マレイン酸共重合体架橋物、ポリスルホン酸塩架橋物や、ポリエチレンオキシド、ポリアクリルアミドなどの水膨潤性ポリマーを部分架橋したもの等が挙げられる。これらの内、吸水量、吸水速度に優れるアクリル酸またはアクリル酸塩系のものが好適である。前記吸水性能を有する高吸水性樹脂は製造プロセスにおいて、架橋密度および架橋密度勾配を調整することにより吸水力と吸水速度の調整が可能である。前記高吸水性樹脂の含有率は吸収体重量の10~60%とするのが望ましい。高吸水性樹脂含有率が10%未満の場合には、十分な吸収能を与えることができず、60%を超える場合にはパルプ繊維間の絡み合いが無くなり、シート強度が低下し破れや割れ等が発生し易くなる。 Examples of the superabsorbent resin include cross-linked polyacrylate, self-crosslinked polyacrylate, saponified acrylate-vinyl acetate copolymer cross-linked, isobutylene / maleic anhydride copolymer cross-linked, Examples include cross-linked polysulfonates, and partially cross-linked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, those based on acrylic acid or acrylate that are excellent in water absorption and water absorption speed are preferred. In the production process of the highly water-absorbent resin having the water absorption performance, the water absorption force and the water absorption speed can be adjusted by adjusting the crosslinking density and the crosslinking density gradient. The content of the highly water-absorbent resin is desirably 10 to 60% of the weight of the absorber. When the content of the superabsorbent resin is less than 10%, sufficient absorbability cannot be provided, and when it exceeds 60%, the entanglement between the pulp fibers disappears, the sheet strength decreases, and tears, cracks, etc. Is likely to occur.
 本例のように、吸収体4を囲繞する被包シート5を設ける場合には、結果的に透液性表面シート3と吸収体4との間に被包シート5が介在することになる。前記被包シート5がクレープ紙からなる場合には、吸収性に優れる前記被包シート5によって体液を速やかに拡散させるとともに、これら経血等の逆戻りを防止するようになる。 As in this example, when the encapsulating sheet 5 surrounding the absorber 4 is provided, the encapsulating sheet 5 is interposed between the liquid-permeable surface sheet 3 and the absorber 4 as a result. When the encapsulating sheet 5 is made of crepe paper, the encapsulating sheet 5 having excellent absorbability diffuses body fluid quickly and prevents reversal of these menstrual blood and the like.
 一方、本生理用ナプキン1の肌当接面側の両側部にはそれぞれ、長手方向に沿ってかつナプキン1のほぼ全長に亘ってサイドシート7、7が設けられ、このサイドシート7、7の一部が側方に延在されるとともに、同じく側方に延在された不透液性裏面シート2の一部とによって、本体部分の両側部に外側に突出するウイング状フラップW、Wが形成されている。前記ウイング状フラップW、Wは、装着時に下着30のクロッチ部分を巻き込むように、基端部の折り線RL(図1)にて外側に折り返して使用され、ウイング状フラップWの不透液性裏面シート2の外面に備えられたズレ止め粘着剤層(図示せず)を下着30の外面に貼着することにより、下着とのズレ止めを図るためのものである。生理用ナプキン1の装着状態で、前記サイドシート7の幅方向内側部分によって肌側に膨出する中空状のクッション部20が形成されるようになっている。このクッション部20については、後段で詳述する。 On the other hand, side sheets 7 and 7 are provided on both sides of the sanitary napkin 1 on the skin contact surface side along the longitudinal direction and over the substantially entire length of the napkin 1, respectively. Wings-like flaps W, W projecting outward on both sides of the main body part by part of the liquid-impervious back sheet 2 extending partly laterally and also laterally extending. Is formed. The wing-shaped flaps W, W are used by being folded outward at a fold line RL (FIG. 1) at the base end so that the crotch portion of the undergarment 30 is wrapped around the wing-shaped flap W. The adhesive layer (not shown) provided on the outer surface of the back sheet 2 is attached to the outer surface of the underwear 30 so as to prevent misalignment with the underwear. With the sanitary napkin 1 attached, a hollow cushion portion 20 that bulges to the skin side is formed by the widthwise inner portion of the side seat 7. The cushion portion 20 will be described in detail later.
 前記サイドシート7としては、重要視する機能の点から撥水処理不織布または親水処理不織布を使用することができる。たとえば、経血やおりもの等が浸透するのを防止する、あるいは肌触り感を高めるなどの機能を重視するならば、シリコン系、パラフィン系、アルキルクロミッククロリド系撥水剤などをコーティングした撥水処理不織布を用いることが望ましい。また、前記ウイング状フラップW、Wにおける経血等の吸収性を重視するならば、合成繊維の製造過程で親水基を持つ化合物、例えばポリエチレングリコールの酸化生成物などを共存させて重合させる方法や、塩化第2スズのような金属塩で処理し、表面を部分溶解し多孔性とし金属の水酸化物を沈着させる方法等により合成繊維を膨潤または多孔性とし、毛細管現象を応用して親水性を与えた親水処理不織布を用いるようにすることが望ましい。 As the side sheet 7, a water repellent nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of important functions. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric. Further, if importance is attached to the absorption of menstrual blood and the like in the wing-shaped flaps W, W, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, , By treating with a metal salt such as stannic chloride, partially dissolving the surface to make it porous, and depositing metal hydroxides to swell or make the synthetic fiber porous, applying capillary action to make it hydrophilic It is desirable to use a hydrophilic treated non-woven fabric provided with.
 本生理用ナプキン1では、図1に示されるように、前記透液性表面シート3の面側には、排血口部Hを囲むように、圧搾溝10を形成するのが好ましい。前記圧搾溝10は、種々の平面パターンで設けることが可能である。本例では、図1に示されるように、排血口部Hを囲むように、ナプキン長手方向に長い全体として略小判形の閉合形状を有する中央圧搾溝11と、前記中央圧搾溝11より前側に離間して配置され、排血口部H側が開口した略逆U字状の前側圧搾溝12と、前記中央圧搾溝11より後側に離間して配置され、排血口部H側が開口した略U字状の後側圧搾溝13と、前記中央圧搾溝11の両側にそれぞれ、前記中央圧搾溝11より幅方向に離間して配置されるとともに、前記中央圧搾溝11の両側部にほぼ平行する略長手方向に沿った両側圧搾溝14、14とから構成されている。 In this sanitary napkin 1, as shown in FIG. 1, it is preferable to form a pressing groove 10 on the surface side of the liquid-permeable surface sheet 3 so as to surround the blood drainage port H. The compressed groove 10 can be provided in various plane patterns. In this example, as shown in FIG. 1, a central squeezing groove 11 having a generally oval closed shape that is long in the longitudinal direction of the napkin so as to surround the blood drainage port H, and a front side from the central squeezing groove 11 The front squeezing groove 12 having a substantially inverted U shape with an opening on the side of the blood drainage port H and the rear side of the central squeezing groove 11 are spaced apart and the side of the blood drainage port H is opened. The U-shaped rear pressing groove 13 and the central pressing groove 11 are arranged on both sides of the central pressing groove 11 so as to be spaced apart from each other in the width direction, and are substantially parallel to both sides of the central pressing groove 11. It is comprised from the both-side pressing grooves 14 and 14 along the substantially longitudinal direction.
 次に、生理用ナプキン1の装着時に、排血口部Hの両側にそれぞれ形成される前記サイドシート7が肌側に膨出した中空状のクッション部20、20について、以下詳細に説明する。 Next, when the sanitary napkin 1 is attached, the hollow cushion portions 20 and 20 in which the side sheets 7 formed on both sides of the blood drainage port H respectively bulge to the skin side will be described in detail below.
 前記サイドシート7は、詳細には図4及び図5に示されるように、幅方向内側の端部が幅方向外側に折り返されるとともに、この折り返し部分が長手方向に沿って設けられた内側接合領域21にて透液性表面シート3に接合されている。一方、前記サイドシート7の幅方向外側は、生理用ナプキン1の外形線に沿って設けられた外側接合領域22にて不透液性裏面シート2に接合されている。前記内側接合領域21及び外側接合領域22はそれぞれ、ホットメルト接着剤をスプレー、スロットコート、スパイラル、カーテンなどの塗工方法によって塗布した領域であり、ナプキン長手方向のほぼ全長に亘って連続して設けられている。 As shown in detail in FIGS. 4 and 5, the side sheet 7 has an inner joint region in which an end portion on the inner side in the width direction is folded back outward in the width direction, and the folded portion is provided along the longitudinal direction. 21 is joined to the liquid-permeable surface sheet 3. On the other hand, the outer side in the width direction of the side sheet 7 is joined to the liquid-impermeable back sheet 2 at an outer joining region 22 provided along the outline of the sanitary napkin 1. Each of the inner bonding area 21 and the outer bonding area 22 is an area where a hot melt adhesive is applied by a coating method such as spraying, slot coating, spiral, curtain, etc., and is continuous over almost the entire length in the napkin longitudinal direction. Is provided.
 また、前記サイドシート7は、前記内側接合領域21と外側接合領域22との間に該サイドシート7を幅方向に折り返した折り返し部23が長手方向に沿って形成されるとともに、該折り返し部23が幅方向に折り畳まれ、この折り畳み部分が、図3及び図5(B)に示されるように、ナプキン長手方向の両端部にそれぞれ設けられた折り畳み部接合領域24、24にて該サイドシート7に接合されている。前記折り返し部23は、サイドシート7の幅方向中間部において、サイドシート7の裏面(不透液性裏面シート2側の面)同士を対面させるように1回だけ折り返した部分である。前記折り返し部23は、前記内側接合領域21と外側接合領域22とを繋ぐサイドシート7に沿った中間位置に形成されており、図4に示されるように前記内側接合領域21がサイドシート7の幅方向内側の端部を幅方向外側に折り返した部分に設けられる場合には、この折り返したサイドシート7に沿う内側接合領域21と外側接合領域22との中間に形成され、図示例では内側接合領域21の上方に折り返し部23が位置している。図2~図5に示される例では、前記折り返し部23は、幅方向の外側に折り畳まれている。 Further, the side sheet 7 is formed with a folded portion 23 formed by folding back the side sheet 7 in the width direction between the inner joint region 21 and the outer joint region 22, and the folded portion 23. Is folded in the width direction, and as shown in FIG. 3 and FIG. 5 (B), the folded portion is folded into the side sheet 7 at the folded portion joining regions 24 and 24 provided at both ends in the napkin longitudinal direction. It is joined to. The folded portion 23 is a portion that is folded only once so that the back surfaces (surfaces on the liquid-impermeable back sheet 2 side) of the side sheets 7 face each other at the intermediate portion in the width direction of the side sheet 7. The folded portion 23 is formed at an intermediate position along the side sheet 7 that connects the inner bonding area 21 and the outer bonding area 22, and the inner bonding area 21 is formed on the side sheet 7 as shown in FIG. 4. In the case where the inner end in the width direction is provided at a portion folded back outward in the width direction, it is formed in the middle of the inner joining region 21 and the outer joining region 22 along the folded side sheet 7. A folded portion 23 is located above the region 21. In the example shown in FIGS. 2 to 5, the folded portion 23 is folded outward in the width direction.
 更に、前記サイドシート7は、前記ウイング状フラップWを含むナプキン長手方向の範囲において、前記内側接合領域21と外側接合領域22との間に前記サイドシート7をいずれの部材にも接合しない非接合領域25が形成されている。サイドシート7をいずれの部材にも接合しないとは、サイドシート7が透液性表面シート3や不透液性裏面シート2など他の部材に接合されないとともに、サイドシート7同士も接合されないことを意味している。前記非接合領域25において、前記サイドシート7が接合されていないため、サイドシート7が拘束されることなく、比較的自由に動くことができるようになっている。前記非接合領域25が形成される内側接合領域21と外側接合領域22との間とは、上述と同様に、内側接合領域21と外側接合領域22とを繋ぐサイドシート7に沿った中間位置のことであって、図4に示されるように前記内側接合領域21がサイドシート7の幅方向内側の端部を幅方向外側に折り返した部分に設けられる場合には、この内側接合領域21によって接合されたサイドシート7の肌側に積層されたサイドシート7の部分も非接合領域25となる。 Further, the side sheet 7 is non-joined in which the side sheet 7 is not joined to any member between the inner joint region 21 and the outer joint region 22 in the range of the napkin longitudinal direction including the wing-shaped flap W. Region 25 is formed. When the side sheet 7 is not joined to any member, the side sheet 7 is not joined to other members such as the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2 and the side sheets 7 are not joined to each other. I mean. Since the side sheet 7 is not bonded in the non-bonded region 25, the side sheet 7 can move relatively freely without being restrained. Between the inner joint region 21 and the outer joint region 22 where the non-joint region 25 is formed, the intermediate position along the side sheet 7 connecting the inner joint region 21 and the outer joint region 22 is the same as described above. In other words, as shown in FIG. 4, when the inner joint region 21 is provided in a portion where the end portion on the inner side in the width direction of the side seat 7 is folded back outward in the width direction, the inner joint region 21 is joined by the inner joint region 21. The portion of the side sheet 7 laminated on the skin side of the side sheet 7 that has been formed also becomes the non-bonded region 25.
 なお、長手方向両端部において、内側接合領域21と外側接合領域22との境界は明確でなくてよく、内側に沿った一定の範囲を内側接合領域21とし、残りの外側部分を外側接合領域22とすることができる。 Note that the boundary between the inner joint region 21 and the outer joint region 22 may not be clear at both ends in the longitudinal direction, a certain range along the inner side is the inner joint region 21, and the remaining outer portion is the outer joint region 22. It can be.
 本生理用ナプキン1では、図6に示されるように、前記ウイング状フラップWを下着30のクロッチ部分を巻き込むように外側に折り返すとともに、生理用ナプキン1を身体の前後方向の丸みに沿って湾曲させた生理用ナプキン1の装着状態で、前記非接合領域25において、前記折り返し部23のサイドシート7が展開され、外方に膨出した中空状のクッション部20が形成されるようになっている。特に、図6に示される例では、前記折り返し部23が幅方向の外側に折り畳まれているため、ウイング状フラップWを外側に折り返すことにより、サイドシート7が引っ張られて、折り返し部23を形成する2層のサイドシート7のうち下層側のサイドシート7が展開されるのに伴い、上層側のサイドシート7が上方に膨出して中空状のクッション部20が形成されるようになる。また、前記折り返し部23を形成する2層のサイドシート7のうち、上方に膨出する上層側のサイドシート7部分は、内側接合領域21の幅方向内側端縁を基点として幅方向の外側に向けて肌側に傾斜した傾斜面とされるため、この傾斜面が肌面にフィットしやすく、肌との密着性が向上できるようになっている。 In the sanitary napkin 1, as shown in FIG. 6, the wing-shaped flap W is folded outward so that the crotch portion of the undergarment 30 is wound, and the sanitary napkin 1 is curved along the roundness in the front-rear direction of the body. With the sanitary napkin 1 attached, the side seat 7 of the folded portion 23 is developed in the non-joining region 25, and a hollow cushion portion 20 bulging outward is formed. Yes. In particular, in the example shown in FIG. 6, since the folded portion 23 is folded outward in the width direction, the side sheet 7 is pulled by folding the wing-shaped flap W outward to form the folded portion 23. As the lower side sheet 7 of the two-layer side sheets 7 is developed, the upper side sheet 7 bulges upward to form a hollow cushion portion 20. Of the two-layer side sheets 7 forming the folded portion 23, the upper side sheet 7 portion that bulges upward is located outside in the width direction with the width direction inner edge of the inner bonding region 21 as a base point. Since the inclined surface is inclined toward the skin side, the inclined surface easily fits the skin surface, and the adhesion with the skin can be improved.
 これによって、前記クッション部20では前記サイドシート7がいずれの部材にも接合されていないため、サイドシート7が拘束されず自由に動くことができるので、脚周りの動きに追従しやすく、装着時の違和感が軽減できるようになるとともに、クッション部20のサイドシート7が肌面に密着しやすく、体液の横漏れ防止効果に優れるようになる。 Thereby, since the side seat 7 is not joined to any member in the cushion portion 20, the side seat 7 can move freely without being restrained. Can be reduced, and the side sheet 7 of the cushion part 20 can be in close contact with the skin surface, resulting in an excellent body fluid side leakage prevention effect.
 前記クッション部20について更に詳細に説明すると、前記非接合領域25は、図5(A)に示されるように、生理用ナプキン1の幅方向に対し、ウイング状フラップWの基端より内側位置(幅方向中心側位置)からウイング状フラップWにかけて連続して形成するのが好ましい。つまり、前記非接合領域25は、ウイング状フラップWの基端部の折り線RLに対して、幅方向の内側から外側にかけて連続して設けられている。このとき、前記非接合領域25のナプキン幅方向の長さAは、20~50mm、好ましくは30~40mmとするのがよい。前記長さAは、図4に示される例では、サイドシート7の幅方向内側の端部を幅方向外側に折り返した部分に内側接合領域21が設けられているため、前記内側接合領域21の幅方向内側と外側接合領域22の幅方向内側との間のナプキン幅方向の長さをとっている。 The cushion portion 20 will be described in more detail. As shown in FIG. 5 (A), the non-joining region 25 is positioned on the inner side of the sanitary napkin 1 in the width direction from the base end of the wing-shaped flap W ( It is preferably formed continuously from the width direction center side) to the wing-shaped flap W. That is, the non-joining region 25 is provided continuously from the inner side to the outer side in the width direction with respect to the fold line RL at the base end portion of the wing-shaped flap W. At this time, the length A of the non-bonded region 25 in the napkin width direction is 20 to 50 mm, preferably 30 to 40 mm. In the example shown in FIG. 4, the length A is provided with an inner joining region 21 at a portion where the end portion on the inner side in the width direction of the side seat 7 is folded back to the outer side in the width direction. The length of the napkin width direction between the width direction inner side and the width direction inner side of the outer side joining area | region 22 is taken.
 前記非接合領域25は、生理用ナプキン1の長手方向に対し、ウイング状フラップWの基端部より前側及び後側に長い範囲に形成するのが好ましい。つまり、前記非接合領域25は、少なくともウイング状フラップWが存在する範囲に設けられている。前記ウイング状フラップWの基端部とは、装着時にウイング状フラップWを折り返すウイング状フラップWの折り線RLの部分である。前記非接合領域25のナプキン長手方向の長さBは、ウイング状フラップWの基端部のナプキン長手方向の長さより長く形成するのが好ましく、具体的には70~140mm、好ましくは90~120mmとするのがよい。前記長さBは、図5(A)に示されるように、サイドシート7を下層側の部材に接合する内側接合領域21及び外側接合領域22においては、内側接合領域21と外側接合領域22とが幅方向に離間し始める位置同士のナプキン長手方向の距離であり、同図5(B)に示されるように、サイドシート7の折り返し部23を該サイドシート7に接合する折り畳み部接合領域24においては、両端の折り畳み部接合領域24、24間の距離である。図5においては、これらの距離がほぼ同等に形成されているが、異なる場合には、いずれか短い方の距離を採用すればよい。前記ウイング状フラップWは概ね着用者の排血口部Hの両側に位置しているため、少なくともウイング状フラップWが存在する範囲を非接合領域25とすることにより、排血口部Hの両側に前記クッション部20が形成されるようになり、脚周りの動きに対する追従性及び体液の横漏れ防止効果が向上するようになる。 The non-bonding region 25 is preferably formed in a long range in the front side and the rear side from the base end portion of the wing-shaped flap W with respect to the longitudinal direction of the sanitary napkin 1. That is, the non-joining region 25 is provided in a range where at least the wing-shaped flap W exists. The base end portion of the wing-shaped flap W is a portion of the fold line RL of the wing-shaped flap W that folds the wing-shaped flap W at the time of mounting. The length B in the napkin longitudinal direction of the non-bonded region 25 is preferably formed longer than the length in the napkin longitudinal direction of the base end portion of the wing-shaped flap W, specifically 70 to 140 mm, preferably 90 to 120 mm. It is good to do. As shown in FIG. 5 (A), the length B includes an inner joint region 21 and an outer joint region 22 in the inner joint region 21 and the outer joint region 22 that join the side sheet 7 to the lower layer side member. Is the distance in the longitudinal direction of the napkin between the positions at which separation begins in the width direction, and as shown in FIG. 5B, the folded portion joining region 24 for joining the folded portion 23 of the side sheet 7 to the side sheet 7 Is the distance between the fold joint regions 24, 24 at both ends. In FIG. 5, these distances are formed almost equal to each other, but if they are different, the shorter distance may be adopted. Since the wing-shaped flaps W are generally located on both sides of the blood drainage port H of the wearer, by setting at least the range where the wing-shaped flaps W are present as the non-joining regions 25, both sides of the blood drainage port H Thus, the cushion part 20 is formed, and the followability to the movement around the leg and the side leakage prevention effect of body fluid are improved.
 図4に示されるように、前記折り返し部23は、吸収体4の側縁部を基端として形成され、この折り返し部23を幅方向外側に折り畳んだ状態で、折り返し端部が吸収体3の側縁より外側に延在するように形成するのが好ましい。これにより、装着時にウイング状フラップWを下着30のクロッチ部分を巻き込むように外側に折り返した際、前記折り返し部23のサイドシート7が展開して肌側に膨出した中空状のクッション部20が形成されやすくなる。 As shown in FIG. 4, the folded portion 23 is formed with the side edge portion of the absorbent body 4 as a base end, and the folded end portion is folded outward in the width direction, and the folded end portion is the absorber 3. It is preferable to form so that it may extend outside a side edge. Thus, when the wing-shaped flap W is folded outward so as to wind the crotch portion of the underwear 30 when worn, the hollow cushion portion 20 that the side sheet 7 of the folded portion 23 expands and bulges to the skin side is provided. It becomes easier to form.
 図4に示されるように、前記折り返し部23の折り返し幅Cは、5~15mm、好ましくは8~12mmとするのがよい。折り返し幅Cをこの範囲とすることにより、装着時にウイング状フラップWを外側に折り返したとき、折り返し部23のサイドシート7が展開しやすく、中空状のクッション部20が形成されやすくなる。 As shown in FIG. 4, the folded width C of the folded portion 23 is 5 to 15 mm, preferably 8 to 12 mm. By setting the folding width C within this range, when the wing-shaped flap W is folded outward at the time of wearing, the side seat 7 of the folded portion 23 is easily developed, and the hollow cushion portion 20 is easily formed.
 前記サイドシート7の幅方向内側の端部は、図4に示される例では幅方向外側に折り返して、この折り返し部が内側接合領域21にて透液性表面シート3に接合されるようになっているが、幅方向外側に折り返さずに幅方向内側に延在させサイドシート7の幅方向内側縁が幅方向内側に向いた状態で、透液性表面シート3に接合するようにしてもよい。しかし、前者の方が、前記クッション部20を形成するに当たって、サイドシート7の幅方向内側の端部を幅方向外側に折り返した部分の曲げ復元性が加わることによって、クッション部20の肌当接面となるサイドシート部分が肌側に膨出しやすくなるため、好ましい。なお、前記前記サイドシート7の幅方向内側の端部は、前記内側接合領域21にて、透液性表面シート3を含む範囲に接合されていればよく、前記透液性表面シート3の側縁を越えて不透液性裏面シート2に接合されるようにしても構わない。 In the example shown in FIG. 4, the end portion on the inner side in the width direction of the side sheet 7 is folded back to the outer side in the width direction, and the folded portion is joined to the liquid-permeable surface sheet 3 in the inner joint region 21. However, it may extend to the inner side in the width direction without folding back to the outer side in the width direction, and may be joined to the liquid-permeable surface sheet 3 in a state where the inner edge in the width direction of the side sheet 7 faces the inner side in the width direction. . However, when the former forms the cushion portion 20, the skin contact of the cushion portion 20 is achieved by adding the bending resilience of the portion of the side seat 7 where the end portion on the inner side in the width direction is folded back outward in the width direction. Since the side sheet part which becomes a surface becomes easy to bulge to the skin side, it is preferable. In addition, the edge part of the width direction inner side of the said side sheet | seat 7 should just be joined to the range containing the liquid-permeable surface sheet 3 in the said inner side joining area | region 21, The side of the said liquid-permeable surface sheet 3 You may make it join to the liquid-impermeable back sheet 2 beyond an edge.
 ところで、本生理用ナプキン1では、前記サイドシート7に弾性伸縮部材を配設しないのが好ましい。本生理用ナプキン1では、装着時にウイング状フラップWを下着のクロッチ部分を巻き込むように外側に折り返すとともに、ナプキンを身体の前後方向の丸みに沿って湾曲させることにより、肌当接面側の両側部に肌側に膨出する中空状のクッション部20が形成され、弾性伸縮部材によることなく肌側に膨出する中空状部が形成できる点に特徴を有している。弾性伸縮部材を配設しないことにより、弾性伸縮部材が肌に当たるなどの装着時の違和感が解消できるようになる。また、クッション部20がより柔軟に変形できるため、脚周りの動きに対する追従性が良好となり、肌との密着性が高まり、体液の漏れ防止効果が向上するようになる。 By the way, in the sanitary napkin 1, it is preferable that no elastic elastic member is provided on the side sheet 7. In the sanitary napkin 1, the wing-shaped flap W is folded outward so that the crotch portion of the underwear is wound when worn, and the napkin is curved along the roundness in the front-rear direction of the body. A hollow cushion portion 20 that bulges to the skin side is formed on the skin portion, and a hollow portion that bulges to the skin side can be formed without using an elastic elastic member. By disposing the elastic stretchable member, it is possible to eliminate a sense of incongruity when the elastic stretchable member hits the skin. Moreover, since the cushion part 20 can deform | transform more flexibly, the followable | trackability with respect to the movement around a leg becomes favorable, adhesiveness with skin increases, and the leak prevention effect of a bodily fluid comes to improve.
 前記サイドシート7は、エアスルー法、スパンレース法、スパンボンド法、サーマルボンド法、メルトブローン法、ニードルパンチ法等の適宜の加工法によって得られた不織布を用いることができるが、エアスルー不織布を用いるのが特に好ましい。エアスルーは、他の加工法に比べ、比較的高い剛性の不織布を得るのに適しており、エアスルー不織布を用いることにより、中空状のクッション部20を形成する際、クッション部20が形成されやすくなるとともに、クッション部20の中空形状が維持されやすくなる。 As the side sheet 7, a nonwoven fabric obtained by an appropriate processing method such as an air-through method, a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method can be used, but an air-through nonwoven fabric is used. Is particularly preferred. The air-through is suitable for obtaining a relatively high-strength nonwoven fabric as compared with other processing methods, and the cushion portion 20 is easily formed when the hollow cushion portion 20 is formed by using the air-through nonwoven fabric. At the same time, the hollow shape of the cushion portion 20 is easily maintained.
 このクッション部20を形成しやすくするとともに、中空形状を維持しやすくするという観点から、前記サイドシート7を構成する繊維の繊度は、2.2dtex以下が好ましく、サイドシート7の目付は、15~30g/m、好ましくは18~22g/mとするのがよい。 From the viewpoint of facilitating the formation of the cushion portion 20 and maintaining the hollow shape, the fineness of the fibers constituting the side sheet 7 is preferably 2.2 dtex or less, and the basis weight of the side sheet 7 is 15 to 30 g / m 2 , preferably 18 to 22 g / m 2 is preferable.
 また、前記サイドシート7は、ポリエチレンテレフタレート(PET)繊維を含む不織布によって構成するのが好ましい。前記ポリエチレンテレフタレート繊維は、一般的に曲げに対する抵抗力が強く、曲げ復元性が高いとともに、柔軟性に優れた材料である。このため、前記サイドシート7がポリエチレンテレフタレート繊維を含むことにより、装着状態で、折り返し部23のサイドシート7が展開しやすくなり、中空状のクッション部20が形成されやすくなる。前記ポリエチレンテレフタレート繊維の配合割合は任意であるが、30~100重量%、好ましくは50~90重量%程度とするのがよい。また、前記サイドシート7を2層以上の多層構造とし、少なくとも肌当接面の層にポリエチレンテレフタレート繊維を含ませるようにすることも可能である。前記ポリエチレンテレフタレート繊維は、ポリエチレンテレフタレートのみからなる繊維でもよいし、ポリエチレンテレフタレートを含む繊維でもよい。 The side sheet 7 is preferably composed of a nonwoven fabric containing polyethylene terephthalate (PET) fibers. The polyethylene terephthalate fiber is generally a material having a high resistance to bending, a high bending resilience, and an excellent flexibility. For this reason, when the said side sheet 7 contains a polyethylene terephthalate fiber, the side sheet 7 of the folding | returning part 23 becomes easy to expand | deploy in a mounting state, and it becomes easy to form the hollow cushion part 20. FIG. The blending ratio of the polyethylene terephthalate fiber is arbitrary, but it may be about 30 to 100% by weight, preferably about 50 to 90% by weight. The side sheet 7 may have a multilayer structure of two or more layers, and at least the layer of the skin contact surface may include polyethylene terephthalate fibers. The polyethylene terephthalate fiber may be a fiber made only of polyethylene terephthalate or a fiber containing polyethylene terephthalate.
〔第2形態例〕
 次に、第2形態例に係る生理用ナプキン1Aについて、図7~図10に基づいて説明する。第2形態例に係る生理用ナプキン1Aは、上記第1形態例に係る生理用ナプキン1に比べて、図7~図9に示されるように、前記サイドシート7の折り返し部23が幅方向の内側に折り畳まれている点で相違する。
[Second embodiment]
Next, a sanitary napkin 1A according to a second embodiment will be described with reference to FIGS. As compared with the sanitary napkin 1 according to the first embodiment, the sanitary napkin 1A according to the second embodiment has a folded portion 23 of the side seat 7 in the width direction as shown in FIGS. It differs in that it is folded inward.
 具体的には、図8及び図9に示されるように、幅方向内側に向けて延びるサイドシート7の幅方向内側の端部が長手方向に沿って設けられた内側接合領域21にて透液性表面シート3に接合され、前記内側接合領域21の幅方向外側端の直ぐ外側において、サイドシート7が幅方向に折り返された折り返し部23が長手方向に沿って形成されるとともに、該折り返し部23が幅方向の内側に折り畳まれ、この折り畳み部分がナプキン長手方向の両端部の折り畳み部接合領域24で前記サイドシート7に接合されている。 Specifically, as shown in FIG. 8 and FIG. 9, the liquid is permeable in the inner joint region 21 in which the end portion on the inner side in the width direction of the side sheet 7 extending toward the inner side in the width direction is provided along the longitudinal direction. A folded portion 23 is formed along the longitudinal direction in which the side sheet 7 is folded in the width direction, just outside the width direction outer end of the inner bonded region 21. The folded portion 23 is formed along the longitudinal direction. 23 is folded inward in the width direction, and the folded portion is joined to the side sheet 7 at the folded portion joining regions 24 at both ends in the napkin longitudinal direction.
 本第2形態例に係る生理用ナプキン1Aでは、図10に示されるように、ウイング状フラップWを下着30のクロッチ部分を巻き込むように外側に折り返すとともに、生理用ナプキン1Aを身体の前後方向の丸みに沿って湾曲させた生理用ナプキン1Aの装着状態で、非接合領域25において、前記折り返し部23のサイドシート7が展開され、外方に膨出した中空状のクッション部20が形成されるようになる。前記クッション部20は、前記ウイング状フラップWを外側に折り返すことにより、サイドシート7が外側に引っ張られ、これに伴い内側に折り畳まれた折り返し部23が起立するとともに、折り返し部23を構成する両側のシート間が離間して中空状に形成されるようになっている。この中空状のクッション部20は、前記折り返し部23を構成する2層のシート部分のうち、幅方向内側のシート部分23aが内側接合領域21の幅方向外側端縁を基端として、肌側に向けて起立するとともに、幅方向内側に傾斜した傾斜壁を形成するようになるので、この傾斜壁部分がポケット状の防漏壁を構成し、外側に向けて流れる体液を効果的に堰き止めることができるようになる。 In the sanitary napkin 1A according to the second embodiment, as shown in FIG. 10, the wing-shaped flap W is folded outward so as to wrap around the crotch portion of the underwear 30, and the sanitary napkin 1A is disposed in the front-rear direction of the body. With the sanitary napkin 1A curved along the roundness, the side seat 7 of the folded portion 23 is unfolded in the non-joining region 25, and the hollow cushion portion 20 bulging outward is formed. It becomes like this. The cushion portion 20 is configured such that the side seat 7 is pulled outward by folding the wing-shaped flap W outward, and the folded portion 23 folded inward along with this rises, and both sides constituting the folded portion 23. These sheets are separated from each other and formed into a hollow shape. The hollow cushion portion 20 has a sheet portion 23a on the inner side in the width direction among the two layers of the sheet portion constituting the folded portion 23, with the outer edge in the width direction of the inner joining region 21 as a base end on the skin side. As it stands up and forms an inclined wall inclined inward in the width direction, this inclined wall part constitutes a pocket-shaped leak-proof wall and effectively blocks the body fluid flowing toward the outside Will be able to.
〔他の形態例〕
 上記形態例では、ウイング状フラップWがナプキン長手方向のほぼ中央部に設けられた所謂昼用ナプキンについて説明したが、ウイング状フラップWが前側寄り位置に設けられ、ウイング状フラップWの後側に臀部を覆うヒップホールド用フラップが形成された所謂夜用ナプキンについても同様に適用可能である。この場合、前記非接合領域25は、ウイング状フラップWの前側より後側の方が相対的に長手方向に長い範囲に形成するのが好ましい。
[Other examples]
In the above-described embodiment, the so-called daytime napkin in which the wing-shaped flap W is provided in the substantially central portion of the napkin in the longitudinal direction has been described. The present invention can be similarly applied to a so-called night napkin in which a hip hold flap covering the buttock is formed. In this case, it is preferable that the non-joining region 25 is formed in a range in which the rear side is relatively longer in the longitudinal direction than the front side of the wing-shaped flap W.
 1…生理用ナプキン、2…不透液性裏面シート、3…透液性表面シート、4…吸収体、5…被包シート、7…サイドシート、10…圧搾溝、11…中央圧搾溝、12…前側圧搾溝、13…後側圧搾溝、14…両側圧搾溝、20…クッション部、21…内側接合領域、22…外側接合領域、23…折り返し部、24…折り畳み部接合領域、25…非接合領域、30…下着 DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Impervious back sheet, 3 ... Liquid permeable surface sheet, 4 ... Absorber, 5 ... Encapsulated sheet, 7 ... Side sheet, 10 ... Squeeze groove, 11 ... Central squeeze groove, DESCRIPTION OF SYMBOLS 12 ... Front side compressed groove, 13 ... Rear side compressed groove, 14 ... Both sides compressed groove, 20 ... Cushion part, 21 ... Inner junction area, 22 ... Outer junction area, 23 ... Folding part, 24 ... Folding part junction area, 25 ... Non-joining area, 30 ... underwear

Claims (8)

  1.  透液性表面シートと不透液性裏面シートとの間に吸収体が介在されるとともに、肌当接面側の両側部にそれぞれ長手方向に沿ってサイドシートが備えられ、側方に延在させた前記不透液性裏面シートの一部と前記サイドシートの一部とによって両側部にそれぞれ装着時に下着のクロッチ部分を巻き込むように外側に折り返して使用されるウイング状フラップが形成された吸収性物品において、
     前記サイドシートは、幅方向内側が長手方向に沿って設けられた内側接合領域にて前記透液性表面シートに接合されるとともに、幅方向外側が吸収性物品の外形線に沿って設けられた外側接合領域にて不透液性裏面シートに接合され、前記内側接合領域と外側接合領域との間に該サイドシートを幅方向に折り返した折り返し部が長手方向に沿って形成されるとともに、該折り返し部が幅方向に折り畳まれ、この折り畳み部分が長手方向の両端部で該サイドシートに接合され、前記ウイング状フラップを含む長手方向の範囲において、前記内側接合領域と外側接合領域との間に前記サイドシートをいずれの部材にも接合しない非接合領域が形成され、
     前記ウイング状フラップを折り返すとともに、前記吸収性物品を身体の前後方向の丸みに沿って湾曲させた前記吸収性物品の装着状態で、前記非接合領域において、前記折り返し部のサイドシートが展開され、外方に膨出した中空状のクッション部が形成されるようにしたことを特徴とする吸収性物品。
    An absorbent body is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, and side sheets are provided along the longitudinal direction on both sides of the skin contact surface side, extending sideways. Absorption in which wing-like flaps are formed that are folded back and used so that the crotch part of the underwear is wrapped around both sides by the part of the liquid-impervious back sheet and the part of the side sheet, respectively. In the sex goods,
    The side sheet is bonded to the liquid-permeable surface sheet in an inner bonding region in which the inner side in the width direction is provided along the longitudinal direction, and the outer side in the width direction is provided along the outline of the absorbent article. A folded portion is formed along the longitudinal direction that is joined to the liquid-impervious backsheet in the outer joining region, and the side sheet is folded back in the width direction between the inner joining region and the outer joining region. The folded portion is folded in the width direction, the folded portion is joined to the side sheet at both longitudinal ends, and in the longitudinal range including the wing-shaped flap, between the inner joining region and the outer joining region. A non-joining region that does not join the side sheet to any member is formed,
    While folding the wing-shaped flap and wearing the absorbent article in which the absorbent article is curved along the roundness in the front-rear direction of the body, the side sheet of the folded portion is deployed in the non-joined region, An absorbent article characterized in that a hollow cushion portion bulging outward is formed.
  2.  前記非接合領域は、吸収性物品の幅方向に対し、前記ウイング状フラップの基端より内側位置から前記ウイング状フラップにかけて連続して形成されている請求項1記載の吸収性物品。 The absorbent article according to claim 1, wherein the non-bonded region is formed continuously from the inner position to the wing-shaped flap from the base end of the wing-shaped flap in the width direction of the absorbent article.
  3.  前記非接合領域は、吸収性物品の長手方向に対し、前記ウイング状フラップの基端部より前側及び後側に長い範囲に形成されている請求項1、2いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 and 2, wherein the non-joining region is formed in a range that is longer in a front side and a rear side than a base end portion of the wing-shaped flap with respect to a longitudinal direction of the absorbent article.
  4.  前記折り返し部は、幅方向の外側に折り畳まれている請求項1~3いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 3, wherein the folded portion is folded outward in the width direction.
  5.  前記折り返し部は、幅方向の内側に折り畳まれている請求項1~3いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 3, wherein the folded portion is folded inward in the width direction.
  6.  前記サイドシートには弾性伸縮部材が配設されていない請求項1~5いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 5, wherein an elastic elastic member is not disposed on the side sheet.
  7.  前記サイドシートは、エアスルー不織布からなる請求項1~6いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 6, wherein the side sheet is made of an air-through nonwoven fabric.
  8.  前記サイドシートは、ポリエチレンテレフタレート繊維を含む不織布からなる請求項1~7いずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 7, wherein the side sheet is made of a nonwoven fabric containing polyethylene terephthalate fibers.
PCT/JP2017/002642 2016-01-29 2017-01-26 Absorbent article WO2017131064A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114340575A (en) * 2019-09-19 2022-04-12 大王制纸株式会社 Absorbent article

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JP7178288B2 (en) * 2019-02-22 2022-11-25 大王製紙株式会社 absorbent article
JP2022154630A (en) * 2021-03-30 2022-10-13 大王製紙株式会社 absorbent article

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008154606A (en) * 2006-12-20 2008-07-10 Kao Corp Absorbent article
JP2009268833A (en) * 2008-05-09 2009-11-19 Kao Corp Absorbent article
JP2011156254A (en) * 2010-02-03 2011-08-18 Kao Corp Absorptive article
JP2012095790A (en) * 2010-11-01 2012-05-24 Kao Corp Absorbent article

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008154606A (en) * 2006-12-20 2008-07-10 Kao Corp Absorbent article
JP2009268833A (en) * 2008-05-09 2009-11-19 Kao Corp Absorbent article
JP2011156254A (en) * 2010-02-03 2011-08-18 Kao Corp Absorptive article
JP2012095790A (en) * 2010-11-01 2012-05-24 Kao Corp Absorbent article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114340575A (en) * 2019-09-19 2022-04-12 大王制纸株式会社 Absorbent article

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