WO2020175243A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2020175243A1
WO2020175243A1 PCT/JP2020/006301 JP2020006301W WO2020175243A1 WO 2020175243 A1 WO2020175243 A1 WO 2020175243A1 JP 2020006301 W JP2020006301 W JP 2020006301W WO 2020175243 A1 WO2020175243 A1 WO 2020175243A1
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WO
WIPO (PCT)
Prior art keywords
elastic
loop
gather
shaped
sheet
Prior art date
Application number
PCT/JP2020/006301
Other languages
English (en)
Japanese (ja)
Inventor
幾哉 渡辺
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 WO2020175243A1 publication Critical patent/WO2020175243A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means

Definitions

  • the present invention mainly relates to absorbent articles such as sanitary napkins, vaginal discharge sheets, incontinence pads, toiletries, and the like, and more specifically, on both sides in the longitudinal direction on the skin contact surface side, the skin side.
  • the present invention relates to an absorbent article in which a hollow loop-shaped three-dimensional gather protruding inward is formed.
  • a cotton-like material is used between a liquid-impermeable back sheet such as a polyethylene sheet or a polyethylene sheet laminated nonwoven fabric and a liquid-permeable top sheet such as a nonwoven fabric or a liquid-permeable plastic sheet. It is known that an absorber made of pulp or the like is interposed.
  • a gather-forming nonwoven fabric is folded in two or three and joined to the absorbent body side at both longitudinal ends of the absorbent article, so that the tip is free at the longitudinal middle portion.
  • the base wall portion is configured to include a planar elastic expansion/contraction portion that is connected to the upper end portion of the base wall portion and contacts the wearer's skin when worn, and forms a substantially C-shape in cross section. The three-dimensional gather that stands up is disclosed.
  • Patent Document 1 Patent No. 3 8 7 1 5 6 3
  • Patent Document 2 Japanese Patent No. 5 3 9 5 6 30
  • Patent Document 3 Patent No. 5 1 2 3 5 8 3 Publication
  • Patent Document 4 Patent No. 5 1 9 0 4 1 Publication
  • the three-dimensional gear-shaped cross-sectional shape of the cross-section disclosed in 2 has the advantage that the standing height on the skin side can be increased, it is easy to fall in the width direction, and if worn in a fallen state, body fluid There was a drawback that leaks and discomfort occurred.
  • a main object of the present invention is to make an absorbent article having a hollow loop-shaped three-dimensional gear gather, increase the protruding height of the three-dimensional gear gather, prevent leakage, and absorb a feeling of discomfort. To provide a sex article.
  • the present invention provides a plurality of longitudinally opposite side portions on the skin contact surface side along the longitudinal direction and at a predetermined interval in the width direction.
  • the elastic elastic members are provided on both sides of the loop portion.
  • the separation distance between the adjacent intermediate elastic expansion/contraction members is smaller than the separation distance between the both-side elastic expansion/contraction members and the intermediate elastic expansion/contraction members adjacent thereto,
  • an absorbent article characterized in that the length is longer than the length of the section in which the sheet member is stretched by the elastic elastic members on both sides.
  • the elastic stretchable member arranged in the sheet member forming the loop-shaped three-dimensional gathers in the absorbent article in which the hollow loop-shaped three-dimensional gathers are formed, as the elastic stretchable member arranged in the sheet member forming the loop-shaped three-dimensional gathers,
  • the elastic elastic members are arranged on both sides, and a plurality of intermediate elastic members arranged in the middle of the elastic members. Then, the separation distance between the adjacent intermediate elastic expansion/contraction members is made smaller than the separation distance between the both-side elastic expansion/contraction members and the intermediate elastic expansion/contraction members adjacent thereto, and the intermediate elastic expansion/contraction members form the sealing member.
  • the length of the stretchable section is made longer than the length of the stretchable section of the sheet member by the elastic elastic members on both sides.
  • the intermediate elastic expansion/contraction members are relatively densely arranged in the intermediate portion along the loop portion and relatively long in the longitudinal direction.
  • the upper end of the loop-shaped three-dimensional gathers is easily raised to the skin side, and the upper end of the raised loop portion is in close contact with the skin surface to prevent leakage.
  • the three-dimensional gathers are hollow loop-shaped three-dimensional gathers, the gathers are less likely to fall down when worn, and it is possible to maintain a close contact with the skin surface and reduce discomfort during wearing.
  • the absorbent article according to claim 1 wherein 4 to 6 elastic elastic members are provided on each of the loop-shaped three-dimensional gathers on both sides.
  • elastic elastic members are arranged in each loop-shaped three-dimensional gather from the viewpoint of clearly producing the effect of the elastic elastic members of each part.
  • These elastic elastic members may be arranged one by one on both sides of the loop part as the elastic elastic members on both sides, and two or four intermediate elastic elastic members may be arranged in the middle thereof.
  • Two elastic expansion/contraction members may be arranged on both sides of the loop portion, and two intermediate expansion/contraction elastic members may be arranged in the middle thereof.
  • the present invention according to claim 3 provides the absorbent article according to any one of claims 1 and 2, wherein the expansion ratio of the intermediate elastic stretchable member is higher than the expansion ratios of the elastic stretchable members on both sides.
  • the elastic force of the intermediate elastic stretchable member causes the upper end portion of the loop-shaped three-dimensional gather to stand up higher toward the skin. It is larger than the expansion rate of the elastic elastic members on both sides.
  • the front end of the section where elasticity is imparted to the sheet member by the intermediate elastic stretchable member is stretched to the sheet member by the double-sided elastic stretchable member.
  • the rear end of the section located on the front side of the front end of the section, in which the intermediate elastic elastic member imparts elasticity to the sheet member, is located behind the section in which the both side elastic elastic members impart elasticity to the sheet member.
  • the section in which the sheet member is stretchable by the intermediate elastic stretchable member is greater than the section in which the sheet elastic is stretched by the both side elastic stretchable members.
  • a fixed end is provided on a base end side of the loop-shaped three-dimensional gather, and a tip of the wearer has a free end.
  • a push-up three-dimensional gather standing upright on the skin side is provided, and a free end elastic member is arranged along the longitudinal direction at the free end of the push-up three-dimensional gather.
  • a push-up solid gather made up of a standing wall-shaped solid gather is provided inside the hollow of the loop-shaped solid gather, and the push-up solid is gathered.
  • the free ends of the gathers push the looped three-dimensional gathers up from the hollow interior. This makes it easier for the loop-shaped three-dimensional gathers to project to the skin side, improves the adhesion of the loop-shaped three-dimensional gathers to the skin surface, and prevents leakage of body fluid. Further, since the elastic member for free end arranged at the free end of the three-dimensional gather for pushing up is in contact with the skin surface via the sheet member of the loop-shaped three-dimensional gather, the elastic member has a soft contact with the skin. It is possible to reduce the discomfort when wearing.
  • the absorbent article according to claim 5 wherein the push-up three-dimensional gather is formed by a sheet member continuous from a base end portion of the loop-shaped three-dimensional gather. To be done.
  • the push-up three-dimensional gather is formed by a sheet member continuous from the base end of the loop-shaped three-dimensional gather, the push-up three-dimensional gather is easily formed, The loop-shaped three-dimensional gathers easily project to the skin side.
  • the sheet member in the loop-shaped three-dimensional gather and the upright standing gather, is an outer side in a width direction of the absorbent article in a cross-sectional view in a width direction of the absorbent article. Side inward in the width direction and is folded back to the wearer's skin side in the width inward side position, and the widthwise outward direction is continuous with the first folded part. And the second folding part that is folded back to the wearer's non-skin side at the width direction outer side position and is folded in three, the first seat part in order from the wearer's non-skin side. , Having a second seat portion and a third seat portion,
  • At least the third sheet portion forms the hollow loop-shaped three-dimensional gather projecting toward the wearer's skin side with the first joint portion and the second joint portion as the base ends, and the second sheet. 7.
  • a sex article is provided.
  • the invention according to claim 7 defines a folded state and a joined state of sheet members for forming the loop-shaped three-dimensional gathers and the three-dimensional upward gathers. Specifically, the sheet member is folded in three in a predetermined shape, and a joining portion is provided at an appropriate position in each layer, thereby forming the loop-shaped three-dimensional gather and the pushing-up three-dimensional gather at the middle portion in the longitudinal direction. ing.
  • the free end portion of the push-up solid gather is at least in a longitudinal section corresponding to a crotch of the wearer, and the loop-shaped solid gather is closest to the wearer's skin side.
  • the free end portion of the push-up three-dimensional gather is at least in a longitudinal section corresponding to a crotch of the wearer, and the loop-shaped three-dimensional gather is closest to the wearer's skin side. Since it is located at a portion that protrudes high, the three-dimensional gathers for lifting make it easier for the loop-shaped three-dimensional gathers to project to the skin side.
  • the protruding height of the loop-shaped three-dimensional gather is increased, leakage can be prevented, and discomfort can be reduced.
  • FIG. 1 A partially cutaway development view of the sanitary napkin 1 according to the present invention.
  • FIG. 2 A view taken along the line 11-11 of Fig. 1.
  • FIG. 3 A view taken along the line 111-111 in Fig. 1.
  • FIG. 4 is an enlarged cross-sectional view showing a widthwise inner side portion of the gather sheet 7 in the longitudinal middle portion in a state where the elastic stretchable member is stretched. ⁇ 2020/175243 7 ⁇ (: 171-1? 2020/006301
  • FIG. 5 is an enlarged sectional view showing the widthwise inner side portion of the gather sheet 7 at both ends in the longitudinal direction.
  • FIG. 6 is a plan view of the sanitary napkin 1 showing each joint.
  • FIG. 7 is a perspective view showing a joint portion of a widthwise inner side portion of a gather sheet 7.
  • the sanitary napkin 1 includes a liquid-impermeable back sheet 2 made of a polyethylene sheet or the like, a menstrual blood or a vaginal discharge (hereinafter also collectively referred to as body fluid). ), a liquid-permeable surface sheet 3 that allows rapid permeation of ), an absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between these sheets 2 and 3, and a long side on both sides on the skin contact surface side.
  • the longitudinal direction of the napkin which is provided over almost the entire length in the direction of the napkin, with the side edge of the absorbent body 4 as the standing base end, and at least including the area corresponding to the body fluid discharge part !!
  • the gathering sheets 7 and 7 that form a sheet are provided, and the outer edge portions of the liquid-impermeable back surface sheet 2 and the liquid-permeable front surface sheet 3 at the front and rear edge portions around the absorbent body 4 are hooked.
  • the liquid-impervious backsheet 2 and the gas-permeable backsheet 2 which are joined together by an adhesive such as thomelt or a joining means such as heat-sealing or ultrasonic sealing, and which extend laterally beyond the absorber 4 at both side edges thereof.
  • the seat sheet 7 are joined by an adhesive such as hot melt or a joining means such as heat seal or ultrasonic seal, and a pair of left and right extending outwardly to the absorbent body side parts substantially corresponding to the body fluid discharge parts 1 to 1 respectively.
  • a pair of left and right rear flaps are formed on the rear side (buttock side) of the wing-shaped flap I that extends outwardly from the rear flaps. Is formed.
  • the absorbent body 4 is surrounded by an encapsulating sheet 5 made of crepe paper or a non-woven fabric. It does not have to be.
  • the liquid-permeable surface sheet ⁇ 2020/175243 8 ⁇ (:171? 2020 /006301
  • a second sheet made of a hydrophilic non-woven fabric or the like having substantially the same shape as the liquid permeable surface sheet 3 may be arranged adjacent to the non-skin side of the plate 3.
  • the liquid-impervious back sheet 2 is made of a sheet material having at least water-blocking property such as polyethylene, but it is preferable to use a material having moisture permeability from the viewpoint of preventing stuffiness.
  • This water-permeable/moisture-permeable sheet material is obtained by melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching it in a uniaxial or biaxial direction.
  • a porous sheet is preferably used.
  • the sanitary napkin 1 On the non-skin side surface (outer surface) of the liquid-impermeable back sheet 2, one or a plurality of adhesive layers (not shown) are formed along the longitudinal direction of the napkin, and the sanitary napkin 1 is attached to the body when worn. It is designed to be fixed to underwear.
  • a polylaminated nonwoven fabric obtained by laminating a plastic film and a nonwoven fabric may be used.
  • a perforated or non-perforated nonwoven fabric, a porous plastic sheet, or the like is preferably used as the liquid-permeable surface sheet 3.
  • the material fibers that make up the non-woven fabric may be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, polyamides, etc., regenerated fibers such as rayon or cupra, and natural fibers such as cotton.
  • spunlace, spunbond, Thermal Rubondo method, meltblown _ down method it is possible to use a nonwoven fabric obtained by an appropriate processing method such as a two _ Dorupanchi method.
  • the spunlace method is excellent in flexibility and drapability
  • the thermal bond method is excellent in bulkiness and high compression recovery.
  • the fibers of the non-woven fabric may be either long fibers or short fibers, but preferably short fibers are used in order to give the texture of a towel cloth. Further, in order to facilitate the embossing treatment, it is preferable to use an olefin fiber having a relatively low melting point such as polyethylene or polypropylene.
  • core-sheath type fibers and side visors in which a fiber having a high melting point is used as a core and a fiber having a low melting point is used as a sheath.
  • the absorber 4 interposed between the liquid impermeable back sheet 2 and the liquid permeable top sheet 3 is made of, for example, cotton-like pulp and a water-absorbent polymer.
  • the above-mentioned water-absorbent polymer is mixed in the pulp constituting the absorber, for example, as granular powder.
  • the pulp include chemical pulp obtained from wood, cellulose fibers such as dissolved pulp, and human cellulose fibers such as rayon and acetate, and softwood pulp having a longer fiber length than hardwood pulp. Is preferably used in terms of function and price.
  • the basis weight of the absorbent body 4 is 300 to 750 ⁇ 9 / ⁇ 12 , preferably It is good to say
  • the absorbent body 4 may be mixed with synthetic fibers.
  • synthetic fiber for example, a polyolefin-based material such as polyethylene or polypropylene, a polyester-based material such as polyethylene terephthalate or polypropylene terephthalate, a polyamide-based material such as nylon, or a copolymer thereof can be used. It may be a mixture of two kinds.
  • a composite fiber such as a core-sheath fiber having a core with a fiber having a high melting point and a sheath having a fiber having a low melting point, a side-by-side fiber, or a split fiber can also be used.
  • hydrophobic fibers it is desirable to use surface-treated synthetic fibers with a hydrophilizing agent so that they have an affinity for body fluids.
  • the skin On the skin contact surface side of the absorbent body 4, in the central portion in the width direction, including the region corresponding to the body fluid discharge parts 1 to 1 of the wearer, the skin is elongated in the longitudinal direction of the napkin. It is preferable to provide a middle portion 6 of the absorber that is thickened toward the side.
  • the mid-height portion 6 is provided so as to cover a portion of the wearer's bodily fluid discharge portions 1 to 1 to the starting position of the buttocks groove, and is provided between the wing-shaped flaps and the middle portion of the rear flap 8 in the longitudinal section.
  • the middle-height portion 6 may be formed by fiber lamination integrated with the absorber 4, or may be laminated separately.
  • the rigidity of the absorber 4 increases and the adhesion to the body decreases, so that ⁇ 1, preferably 5 to 15 Is preferred.
  • the absorber 4 and the middle-high part 6 may be integrally encapsulated, or, although not shown, the absorber 4 and the middle-high part 6 may be separately surrounded by an envelope sheet and then laminated.
  • the width dimension of the liquid-permeable surface sheet 3 is set to be slightly longer than the width dimension of the absorbent body 4 as shown in the cross-sectional views of FIGS. 2 and 3. It stops only by covering the body 4, and the outer side of the body 4 prevents the penetration of gearseat sheet 7, which is different from the liquid-permeable surface sheet 3, specifically menstrual blood, scents, or the like.
  • a gearzer sheet 7 made of a non-woven fabric material subjected to an appropriate water repellent treatment or a hydrophilic treatment is provided.
  • gear gather sheet 7 those made of natural fibers, synthetic fibers or recycled fibers and formed by an appropriate processing method can be used, but it is preferable to eliminate the feeling of stiffness and In order to prevent stuffiness, it is preferable to use a soft non-woven fabric having a low basis weight and breathability.
  • a non-woven fabric having a softness that is soft to the touch even when it comes into contact with the skin surface in a state of being highly projected toward the skin due to the contracting force of the elastic member is preferable.
  • a water repellent non-woven fabric coated with a chromic chloride water repellent or the like is preferably used.
  • the gear gather sheet 7 is hot-melt over the range from the middle portion in the width direction to the outer edge of the liquid-impermeable back sheet 2 from a predetermined inner position. It is adhered with an adhesive such as, and a predetermined flap portion is formed at a predetermined position.
  • This flap part forms a pair of left and right wing-shaped flutters I on both sides of the part corresponding to the body fluid discharge parts 1 to 1, and the rear flaps are formed on the rear side parts on the rear side (buttock side). Is forming.
  • the longitudinal section containing this wing flap corresponds to the wearer's crotch.
  • the wing-shaped flaps When attached to the shorts, the wing-shaped flaps are folded back to the opposite side at the folding line 8 1-position of the base end portion, wrapped around the crotch part of the shorts to be fastened, and the rear flap ⁇ . Is attached to the inner surface of the shorts.
  • the three-dimensional gather 3 includes a plurality of loops in which the inner portion in the width direction of the gather sheet 7 is folded approximately double and the both ends or appropriate positions in the longitudinal direction are fixed inside the double sheet.
  • the elastic elastic members 14 and 14 for the parts are arranged along the longitudinal direction of the sanitary napkin 1 with a predetermined space in the width direction, and the double sheet is appropriately folded to join the predetermined parts. It includes a hollow loop-shaped three-dimensional gather 10 that is formed so as to project to the wearer's skin side by being joined at the parts.
  • the inner portion in the width direction of the gather sheet 7 is appropriately folded and adhered to the absorbent body 4 side as shown in FIG. 3, so that at least the body fluid discharge portion 1 to As shown in FIG. 2, within a predetermined section in the longitudinal direction of the napkin corresponding to the crotch of the wearer including 1 as shown in FIG. 2, a pair of left and right three-dimensional gathers 3 and 3 protruding toward the skin side are formed.
  • the loop elastic member 14 is arranged between the elastic elastic members 15 and 15 on both sides of the loop, and the elastic elastic members 15 and 15 on both sides. And a plurality of intermediate elastic stretchable members 16.
  • the elastic elastic members 15 on both sides are arranged on both sides of the loop-shaped three-dimensional gather 10 respectively, and at the lower side (proximal end side) of the upper portion of the loop portion that comes into contact with the skin surface when worn, the main elastic member is It is provided to keep both sides of the loop part outward and to maintain the loop-shaped cross section of the hollow part.
  • the two elastic elastic members 15 on both sides are arranged at a predetermined interval in the width direction from the intermediate elastic elastic member 16 described above, or a plurality of the elastic elastic members 15 are arranged at a predetermined interval in the width direction. In the illustrated example, one elastic elastic member 15 on each side is arranged on each side of the loop portion.
  • the intermediate elastic stretchable member 16 is a loop of the loop-shaped three-dimensional gather 10. ⁇ 2020/175243 12 boxes (:171? 2020/006301
  • a plurality of the intermediate elastic expansion/contraction members 16 are arranged at predetermined intervals in the width direction.
  • Fig. 4 shows that the elastic stretchable member arranged in the three-dimensional gear gather 3 is stretched so as not to cause contraction deformation of the gear seat-sheet 7 due to the contracting force of the elastic stretchable member, and is folded to the surface sheet 3 side.
  • FIG. 4 shows the separation distance between the adjacent intermediate elastic expansion/contraction members 16 and 16 is such that the both side elastic expansion/contraction members 15 and the intermediate elastic expansion/contraction members adjacent to the elastic elastic expansion members 15 are adjacent to each other.
  • the separation distance from 16 is smaller than 8 and 0. That is, they have the relationship of ⁇ Machi ⁇ 8 and ⁇ Momi ⁇ 0.
  • the separation distance is 2 to 9 ,, are preferred.
  • the separation distances 8 and 0 do not have to have the same dimensions as long as they have dimensions in this range, and may be formed with different dimensions.
  • the lengthwise opening along the longitudinal direction of the napkin in the section where the gear elastic sheet 7 has been made stretchable by the intermediate elastic stretchable member 16 has the two side elastic stretchable members 1 It is longer than the length along the longitudinal direction of the napkin in the stretchable section of the gear gather sheet 7 by 5.
  • the section in which the elastic member is provided with elasticity by the elastic expansion/contraction member is an area in the longitudinal direction of the sanitary napkin 1 in which the gearseat sheet 7 is contracted by the contracting force of the elastic expansion/contraction member in the natural state.
  • the elastic force of the intermediate elastic expansion/contraction member 16 lifts the gearseat sheet 7, and the upper end of the loop-shaped three-dimensional gearza-10 easily stands up high on the skin side. , Leakage can be prevented by keeping the upper edge of the body in high contact with the skin surface.
  • the 3D gear gather 3 is equipped with a hollow loop-shaped 3D gear gather 10, it is difficult for the gear gear 1 to fall down when it is attached, and it is possible to maintain a close contact with the skin surface and reduce discomfort during attachment. Become.
  • the loop-shaped three-dimensional gear gathers 10 on both sides are respectively provided with the elastic members for loop portions.
  • elastic expansion/contraction members may be arranged arbitrarily.
  • One elastic elastic expansion member 15 is arranged on each side of the elastic expansion elastic member 15 and 2-4 elastic elastic members 16 are arranged in the middle.
  • two elastic expansion/contraction members 15 may be arranged on each side, and two elastic expansion/compression members 16 may be arranged in the middle.
  • the elastic elastic members 15 on both sides need not be symmetrical in number and may be arranged in different numbers.
  • one elastic elastic member on both sides 15 is placed on each side, and two elastic elastic members 16 are placed in the middle of the elastic elastic members 15 for a total of four loop elastic elastic members 14. Has been done.
  • the expansion rate of the intermediate elastic expansion/contraction member 16 is larger than the expansion rates of the both-side elastic expansion/contraction members 15.
  • the contraction force of the intermediate elastic expansion/contraction member 16 causes the upper end of the loop portion to rise higher to the skin side.
  • the elongation rate of the intermediate elastic stretchable member 16 is preferably 150 to 200%, and the stretch rate of the double-sided elastic stretchable member 15 is preferably 100 to 150%. ..
  • the elongation rate is 10 ⁇ 2020/175243 14 ⁇ (: 171-1? 2020 /006301
  • the front end of the stretchable section of the gather sheet 7 by 6 is located in front of the front end of the stretchable section of the gather sheet 7 by the elastic elastic members 15 on both sides.
  • the rear end of the section where the gather sheet 7 is stretched by 16 is positioned rearward of the rear end of the section where the gather sheet 7 is stretched by the elastic elastic members 15 on both sides. It is preferably arranged. That is, the section in which the gathering sheet 7 is stretched by the intermediate elastic stretchable member 16 is located on the front side and the rear side of the section in which the gathering sheet 7 is stretched by the double-sided elastic stretchable member 15. Each is extended.
  • the loop-shaped three-dimensional gather 10 can be erected higher on the skin side due to the effect of suspending the gather sheet 7 by the intermediate elastic stretchable member 16 extending long in the front-back direction at the upper end.
  • the elastic stretchable members 15 It is preferable to lengthen the gather sheet 7 to the front side and the rear side of the stretchable section by substantially the same length.
  • the effect of suspending the gather sheet 7 by the intermediate elastic expansion/contraction member 16 becomes substantially uniform in the front and back, and the standing height to the skin side can be increased from the front side to the rear side.
  • the amount of extension in the section where stretch is imparted to the gather sheet 7 by the intermediate elastic stretchable member 16 is It can be increased on the front side and decreased on the rear side.
  • the structure of the three-dimensional gather 3 will be described in more detail.
  • the three-dimensional gather 3 includes the above-mentioned loop-shaped three-dimensional gather 10 and the hollow inside of the loop-shaped three-dimensional gather 10 along the longitudinal direction.
  • the looped solid gathers have a fixed end on the proximal side of the gather, and the tip of the looped solid gathers 10 forms a free end 12 of the wearer. ⁇ 2020/175243 15 ⁇ (: 171-1? 2020 /006301
  • It is preferably composed of a push-up three-dimensional gather 11 which stands up on the skin side.
  • An elastic member 13 for free end is arranged along the longitudinal direction at the free end of the three-dimensional gather 11 for pushing up.
  • the loop-shaped solid gather 10 is pushed up from the hollow inside by the free end portion 12 of the push-up solid gather 11.
  • the loop-shaped three-dimensional gathers 10 are pushed up by the push-up three-dimensional gathers 11, the loop-shaped three-dimensional gathers 10 easily protrude higher toward the skin side, and the skin surface of the loop-shaped three-dimensional gathers 10 is increased. Adhesion to the body will be better and leakage of body fluids can be prevented more reliably. Further, since the elastic member 13 for the free end arranged at the free end 12 of the three-dimensional gather 11 for pushing up is in contact with the skin surface via the sheet member of the three-dimensional gather 10 for loop. , The elastic member will be soft against the skin, reducing the discomfort when wearing.
  • the push-up three-dimensional gather 1 1 pushes the loop-shaped three-dimensional gather 10 toward the wearer's skin side, Since it protrudes extremely high, the loop-shaped solid gather 10 can be kept in close contact with the skin surface and leakage of body fluid can be prevented.
  • the loop-shaped three-dimensional gather 10 has a substantially dome-shaped hollow loop shape having a vertically long cross-section with a substantially lateral edge portion of the absorbent body 4 as a base end. It projects to the skin side. It is preferable that the base end portion of the loop-shaped three-dimensional gather 10 is joined to the absorber 4 side by two joint portions that are separated in the width direction. As described above, the loop part protruding toward the skin side from the joint part of the base end part is fixed at both ends or at appropriate positions in the longitudinal direction. Elastic members 14 and 14 are arranged in a stretched state.
  • the push-up three-dimensional gather 11 is arranged inside the hollow of the loop-shaped three-dimensional gather 10 and has a fixed end on the base end side of the loop-shaped three-dimensional gather 10. It is a standing wall-shaped gather that has a joint part) and the tip forms the free end part 12.
  • the fixed end portion of the push-up three-dimensional gather 11 is a loop-shaped three-dimensional gather. ⁇ 2020/175243 16 ⁇ (: 171-1? 2020 /006301
  • the loop-shaped three-dimensional gear gather 10 has two joints (the first joint 25 and the second joint 26, which will be described later) that are spaced apart in the width direction of the sanitary napkin 1.
  • it may have a fixed end portion at or near the widthwise inner or outer joint portion, or may have a fixed end portion at an intermediate portion of these joint portions. May be.
  • the width direction outer joint portion (second joint portion 26) has a fixed end portion. Is good.
  • the free end portion 12 of the push-up three-dimensional gear gather 11 is a loop-shaped three-dimensional gear gather.
  • the loop-shaped three-dimensional gear gather 10 is assisted to project to the skin side from the inside.
  • the cross-sectional shape of the push-up three-dimensional gear gather 11 is formed in a substantially linear shape in the illustrated example, it is formed in a shape bent into one or more in the middle portion such as a substantially V shape or a substantially shape. May be.
  • the elastic member 13 for free end is arranged only at the free end 12 of the three-dimensional gears for pushing up 11, but one or more elastic members are provided in the middle of the base end. May be placed.
  • the push-up three-dimensional gear gather 11 may be formed by a sheet member that is separate from the loop-shaped three-dimensional gear gather 10, as shown in Fig. 4, the base of the loop-shaped three-dimensional gear gather 10 is shown. It is preferable that the sheet member is continuous from the end. By forming a continuous sheet member from the loop-shaped three-dimensional gear gather 10, the push-up three-dimensional gear gather 11 can be easily provided inside the hollow portion of the loop-shaped three-dimensional gear gather 10.
  • the specific structures of the loop-shaped three-dimensional gear gather 10 and the push-up three-dimensional gear gather 11 will be described.
  • the loop-shaped three-dimensional gear gather 10 and the push-up three-dimensional gear gather 11 are arranged in the width direction of the gearseat sheet 7.
  • Elastic members (the elastic member for the free end 13 and the elastic member for the loop portion 1) along the longitudinal direction of the sanitary napkin 1 at an appropriate position inside the double sheet in which the side portion is folded approximately double. 4) is placed on the sanitary napkin 1 as shown in Figs. 4 and 5. ⁇ 2020/175243 17 ⁇ (: 171-1?2020/006301
  • the first folded portion extends from the widthwise outer side of the sanitary napkin 1 to the widthwise inner side and is folded back to the wearer's skin side at the widthwise inner side position.
  • 20 and the second folded-back portion 21 that extends outward in the width direction continuously to the first folded-back portion 20 and is folded back toward the wearer's non-skin side at the widthwise outer side position.
  • the first seam portion 22, the second seat portion 23, and the third seat portion 24 are formed in order from the non-skin side of the wearer in a state of being folded in three by.
  • the first sheet portion 22 is located at a position slightly outward in the width direction from the first folded portion 20 and extends over the entire length in the longitudinal direction.
  • the second joint portion 26 that is joined to the first seat portion 22 over the entire length in the longitudinal direction, and the two longitudinal end portions of the third seat portion 24 are joined to the second sheave portion 23, respectively.
  • a third joint portion 27 is provided.
  • a fourth joining portion 28 is provided to join both longitudinal end portions of the first portion 22 to the liquid permeable surface sheet 3 at positions near the first folded portion 20. It has been burned.
  • the boundary between the fourth joint portion 28 and the first joint portion 25 does not necessarily have to be clear, and may be connected in the width direction.
  • the first joint 2 is separated by the extension line that extends the side edge of the first joint 25 to both ends in the longitudinal direction. It is possible to distinguish between 5 and the fourth joint 28.
  • FIG. 6 (eight) is a plan view showing the joint between the first sheet portion 22 and the liquid-permeable surface sheet 3 (the first joint portion 25 and the fourth joint portion 28).
  • FIG. 6 is a plan view showing the joint between the 2nd seat part 23 and the 1st seat part 2 2 (the 2nd joint part 26), Fig. 6 (0 is the 3rd seat part 2 4 and the 2nd seat part 2)
  • FIG. 7 is a plan view showing a joint portion (the third joint portion 27) with 3;
  • a push-up three-dimensional gather 11 which stands up on the wearer's skin side is formed inside the hollow of the loop-shaped three-dimensional gather 10. That is, the loop-shaped three-dimensional gather 10 protrudes to the skin side so as to form a hollow loop shape with the two first joining portions 25 and the second joining portions 26 which are separated in the width direction as the base ends.
  • the above-mentioned three-dimensional gather for push-up 10 is erected on the skin side with the second joint 26 forming the base end of one side (outer side in the width direction) of this loop-shaped three-dimensional gather 10 as the base end. doing.
  • one gather sheet 7 is used to form a loop-shaped three-dimensional gather 1.
  • the push-up solid gather 11 extends from the second joint portion 26, which is provided on the outer side in the width direction, toward the inner side in the width direction. Since it is formed by the seat part 23, the free end part 1 2 faces the inner side in the width direction with the three-dimensional gathers 1 1 for pushing up standing upright on the skin side. Due to the resistance force of the internal push-up solid gathers 11 against the pressure toward the widthwise outer side, the loop-shaped solid gathers 10 are structured so as not to easily fall outward in the widthwise direction.
  • the seat portion 24 and the second seat portion 23 are joined over almost the entire width, but the seat portion 24 and the second seat portion 23 are provided at a position near at least the first folded portion 20 overlapping the elastic member 13 for the free end. If it is provided, it does not have to be provided on the side of the second folding portion 21 than that.
  • the third joint portion 27 is provided from the longitudinal end portion of the sanitary napkin 1 to the end portion of the section where stretch is imparted to the gather sheet 7 by the intermediate elastic stretchable member 16. Both side portions are provided so as to extend to the end portions of the section in which the gather sheet 7 is stretched by the both-side elastic stretchable members 15.
  • the loop-shaped three-dimensional gather 10 does not project to the skin side, and the gather sheet 7 is folded as shown in FIG. ⁇ 2020/175 243 19 ⁇ (: 171-1? 2020 /006301
  • this third joint 27 is only on both ends in the longitudinal direction of the sanitary napkin 1, as shown in Fig. 6 (0. It is preferably provided and not provided in the middle thereof.
  • the fourth joint portion 28 is provided from the longitudinal end portion of the sanitary napkin 1 to the end portion of the section where the gear elastic sheet 7 is stretched by the intermediate elastic stretchable member 16. ..
  • the free end portion 12 of the pushing-up three-dimensional gear gather 11 in the natural state in which the contracting force of the elastic members 13 and 14 acts is at least worn on the wearer's inseam.
  • the loop-shaped three-dimensional gears 10 are located at the highest protruding portion on the wearer's skin side.
  • the sanitary napkin 1 is bent and deformed to the greatest extent in the longitudinal direction, and the contraction force of the elastic member arranged along the longitudinal direction causes the three-dimensional gear gathering. Is the part that can be pulled up to the skin side.
  • the loop-shaped three-dimensional gear gather 11 since the free end portion 12 of the push-up three-dimensional gear gather 11 is arranged so that it can be freely repositioned inside the loop-shaped three-dimensional gear gather 10, the loop-shaped three-dimensional gear gather is obtained. It is easy to move to the part of the hollow inside of 10 that protrudes the highest to the wearer's skin side, and the three-dimensional gear gear for lifting 1 1 prevents the loop-shaped standing gear gear 10 from protruding from the inside. By assisting by pushing it up, the loop-shaped three-dimensional gear gather 10 further protrudes higher toward the skin side, and it is possible to maintain a state in which it is in close contact with the wearer's skin surface. This promotes the effect of preventing leakage of body fluid.
  • the expansion rate of the elastic member 13 for the free end arranged at the free end 12 of 1 is made larger than the expansion rate of the elastic member 14 for the loop part arranged at the loop part of the loop-shaped three-dimensional gearzer 10. May be.
  • the pushing-up effect of the loop-shaped three-dimensional gear gather 10 by the push-up three-dimensional gear gather 11 can be further enhanced, and the loop-shaped standing three-dimensional gear gather 10 further projects to the skin side.
  • the elastic member 14 for the loop portion arranged on the loop-shaped three-dimensional gear gather 10 directly contacts the skin surface. ⁇ 2020/175 243 20 ⁇ (:171? 2020 /006301
  • the expansion ratio of the elastic member 13 for the free end portion is 1 to 3 times, preferably 1.2 to 2 times the expansion ratio of the elastic member 14 for the loop portion.

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

Abstract

Le problème décrit par la présente invention est d'empêcher une fuite en augmentant la saillie de fronces verticales et de réduire l'inconfort. La solution selon l'invention concerne des fronces verticales en forme de boucle creuse 10 faisant saillie vers la peau d'un porteur qui sont formées dans les deux parties latérales dans la direction longitudinale sur le côté surface en contact avec la peau à l'aide de feuilles de fronces 7 dans lesquelles de multiples éléments élastiques 14 pour des parties de boucle sont agencés dans la direction longitudinale à des intervalles prédéterminés dans la direction de la largeur. Les éléments élastiques 14 pour des parties de boucle sont constitués d'éléments étirables élastiques latéraux 15 disposés des deux côtés de chaque partie de boucle et de multiples éléments étirables élastiques intermédiaires 16 disposés entre les éléments étirables élastiques latéraux 15. La distance B de séparation entre les éléments étirables élastiques intermédiaires adjacents 16 est inférieure aux distances A, C de séparation entre les éléments étirables élastiques latéraux 15 et les éléments étirables élastiques intermédiaires 16 adjacents à ceux-ci. La longueur D d'une section dans laquelle les éléments étirables élastiques intermédiaires 16 confèrent une extensibilité à la feuille de fronces 7 est plus longue que la longueur E d'une section dans laquelle les éléments étirables élastiques latéraux 15 confèrent une extensibilité à la feuille de fronces 7.
PCT/JP2020/006301 2019-02-27 2020-02-18 Article absorbant WO2020175243A1 (fr)

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WO2021145140A1 (fr) 2020-01-16 2021-07-22 株式会社リコー Échantillon pour évaluer la performance d'un appareil de test génétique, procédé de préparation dudit échantillon, et dispositif d'évaluation de performance, procédé d'évaluation de performance, programme d'évaluation de performance, et appareil d'évaluation de la performance d'un appareil de test génétique

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JPH08503638A (ja) * 1992-11-30 1996-04-23 ザ、プロクター、エンド、ギャンブル、カンパニー 弾性サイドフラップ及びウィングを有する吸収体物品
WO2009004941A1 (fr) * 2007-06-29 2009-01-08 Uni-Charm Corporation Article asborbant
JP2009207599A (ja) * 2008-03-03 2009-09-17 Kao Corp 吸収性物品
JP2010094269A (ja) * 2008-10-16 2010-04-30 Kao Corp 吸収性物品
JP2010264161A (ja) * 2009-05-18 2010-11-25 Uni Charm Corp 吸収性物品
JP2010284231A (ja) * 2009-06-09 2010-12-24 Uni Charm Corp 吸収性物品
JP2012095790A (ja) * 2010-11-01 2012-05-24 Kao Corp 吸収性物品
JP2012205638A (ja) * 2011-03-29 2012-10-25 Daio Paper Corp 吸収性物品
JP2017042383A (ja) * 2015-08-27 2017-03-02 大王製紙株式会社 吸収性物品
JP2019024843A (ja) * 2017-07-28 2019-02-21 大王製紙株式会社 吸収性物品

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Publication number Priority date Publication date Assignee Title
JP6074523B1 (ja) * 2016-01-29 2017-02-01 大王製紙株式会社 吸収性物品の伸縮構造

Patent Citations (10)

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Publication number Priority date Publication date Assignee Title
JPH08503638A (ja) * 1992-11-30 1996-04-23 ザ、プロクター、エンド、ギャンブル、カンパニー 弾性サイドフラップ及びウィングを有する吸収体物品
WO2009004941A1 (fr) * 2007-06-29 2009-01-08 Uni-Charm Corporation Article asborbant
JP2009207599A (ja) * 2008-03-03 2009-09-17 Kao Corp 吸収性物品
JP2010094269A (ja) * 2008-10-16 2010-04-30 Kao Corp 吸収性物品
JP2010264161A (ja) * 2009-05-18 2010-11-25 Uni Charm Corp 吸収性物品
JP2010284231A (ja) * 2009-06-09 2010-12-24 Uni Charm Corp 吸収性物品
JP2012095790A (ja) * 2010-11-01 2012-05-24 Kao Corp 吸収性物品
JP2012205638A (ja) * 2011-03-29 2012-10-25 Daio Paper Corp 吸収性物品
JP2017042383A (ja) * 2015-08-27 2017-03-02 大王製紙株式会社 吸収性物品
JP2019024843A (ja) * 2017-07-28 2019-02-21 大王製紙株式会社 吸収性物品

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TWI826651B (zh) 2023-12-21

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