WO2021065675A1 - パンツタイプ使い捨て着用物品 - Google Patents

パンツタイプ使い捨て着用物品 Download PDF

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Publication number
WO2021065675A1
WO2021065675A1 PCT/JP2020/036057 JP2020036057W WO2021065675A1 WO 2021065675 A1 WO2021065675 A1 WO 2021065675A1 JP 2020036057 W JP2020036057 W JP 2020036057W WO 2021065675 A1 WO2021065675 A1 WO 2021065675A1
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WIPO (PCT)
Prior art keywords
perforation
pants
type disposable
perforations
waist
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/036057
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English (en)
French (fr)
Japanese (ja)
Inventor
明良 ▲高▼平
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Daio Paper Corp
Original Assignee
Daio Paper Corp
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Filing date
Publication date
Application filed by Daio Paper Corp filed Critical Daio Paper Corp
Publication of WO2021065675A1 publication Critical patent/WO2021065675A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—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 specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers of the pads

Definitions

  • the present invention relates to a pants-type disposable wear item.
  • Pants-type disposable items such as pants-type disposable napkins, pants-type disposable sanitary napkins, and pants-type disposable napkin covers have side seals in which both sides of the front body and both sides of the back body are joined.
  • the waist opening and the leg opening are formed in advance by the formation of the side seal.
  • One method for making it easier to peel off the front body and the back body with the side seal is to improve the joining pattern of the side seal part, but it is difficult to improve the ease of peeling only by improving the joining pattern. In many cases. In particular, it is difficult to facilitate peeling even for elderly people with weak strength while ensuring the peeling strength required for the side seal.
  • the main object of the present invention is to make it difficult for lateral tears to occur while being able to separate the front body and the back body with a weaker force at the perforations.
  • the pants-type disposable wear items that have solved the above problems are as follows. ⁇ First form> Front body and back body, Side seals formed by joining both sides of the front body and both sides of the back body, Around the waist, which is continuous in a tubular shape via a side seal, The waist opening, which is the waist opening around the waist, It has a pair of left and right leg openings formed on the leg side of the waistline. A perforation is formed from the waist opening to the leg opening on the center side in the width direction with respect to the side seal on at least one of the front body and the back body.
  • a unit having a first perforation extending in the vertical direction and a second perforation extending diagonally from the end of the first perforation to the side seal side is repeatedly provided in the vertical direction.
  • the second perforation is an upward second perforation extending diagonally upward, and Having at least one of the second downward perforations extending diagonally downward, Pants-type disposable wear items that are characterized by this.
  • the pants-type disposable wearable article can be easily removed from the wearer. Since the perforations are located along the side seals of the front and back bodies, they can be separated from anywhere and can be cut one by one. The end of the first perforation and the start point of the second perforation that extends diagonally to the side seal side are preferably connected, and the first perforation and the second perforation are in a series. Separation occurs continuously from the first perforation to the second perforation.
  • ⁇ Third form> It has the perforation end in which the upper second perforation end folds back and extends upward in the opposite direction between the units of the perforation that are repeatedly arranged in the vertical direction.
  • the first perforation is provided on an extension line in which the end of the second perforation in the downward direction is folded downward in the opposite direction.
  • the downward second perforation is provided on the extension line of the upward second perforation.
  • the first perforation of the next unit is present on the folded extension line of the lower second perforation, and the lower second perforation of the previous unit is on the extension line of the upper second perforation. , Have been placed.
  • This form is a combination of the first and second forms. Since the distance between the units is narrow and the start point and the end point of the unit are proximal to each other, guidance between unit perforations is likely to occur, and the sewing machine can be separated. It is more likely to occur along the eyes. Further, the direction of separation can be either from top to bottom from the waist opening to the leg opening, or vice versa.
  • a hole is provided at a position where there is no hole in the first perforation from the waist opening to the leg opening, proximal to the center side in the width direction of the first perforation.
  • the elastic member existing in the width direction of the front body or the back body may stop the continuous separation of the perforations or cause lateral tearing.
  • the pants-type disposable wearable article can be easily removed from the wearer.
  • the front body and the back body can be separated by a weaker force at the perforation, but lateral tearing is less likely to occur.
  • FIG. 1 It is a plan view (inner surface side) of the pants type disposable diaper in the unfolded state. It is a plan view (outer surface side) of the pants type disposable diaper in the unfolded state. It is a cross-sectional view of 4-4 of FIG. It is a cross-sectional view of 5-5 of FIG. 6-6 is a sectional view taken along the line 6-6 of FIG. It is a perspective view of the wearing state of the pants type disposable diaper. It is a schematic diagram of one perforation which concerns on form 1.
  • FIG. 1 It is a schematic diagram of one perforation which concerns on form 1.
  • FIG. It is a schematic diagram of one perforation which concerns on form 1.
  • FIG. It is a schematic diagram of one perforation which concerns on form 2.
  • FIG. It is a schematic diagram of one perforation which concerns on form 5.
  • FIG. It is a schematic diagram of one perforation which concerns on form 6.
  • FIG. 1 to 6 show pants-type disposable diapers.
  • This pants-type disposable diaper (hereinafter, also simply referred to as a diaper) has an exterior body 20 extending from the front body F and the back body B, and an interior body fixed to the inner surface of the exterior body 20 so as to extend from the front body F to the back body B.
  • the interior body 10 is formed by interposing an absorber 17 between the liquid-permeable top sheet 11 and the liquid-impermeable sheet 12.
  • the back surface of the interior body 10 is joined to the inner surface (upper surface) of the exterior body 20 by a joining means such as a hot melt adhesive (dot pattern portion in FIG. 2), and then the interior body 10 and the exterior body 20 are joined.
  • the interior body 10 has a structure in which an absorber 13 is interposed between the top sheet 11 and the liquid impermeable sheet 12, and excreted liquid that has permeated the top sheet 11 is collected. It is absorbed and held by the absorber 13.
  • the planar shape of the interior body 10 is not particularly limited, but it is generally a substantially rectangular shape as shown in the illustrated form.
  • a perforated or non-perforated non-woven fabric, a porous plastic sheet, or the like is preferably used as the top sheet 11 that covers the front side (skin contact surface side) of the absorber 13.
  • the material fibers constituting the non-woven fabric can be olefin-based fibers such as polyethylene or polypropylene, synthetic fibers such as polyester-based and polyamide-based, recycled fibers such as rayon and cupra, and natural fibers such as cotton.
  • a non-woven fabric obtained by an appropriate processing method such as 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 that it is rich in flexibility and drapeability, and the thermal bond method is excellent in that it is bulky and soft.
  • urine or the like is rapidly absorbed.
  • the top sheet 11 extends to the back side of the absorber 13 by involving the side edge portion of the absorber 17.
  • a liquid-impermeable plastic sheet such as polyethylene or polypropylene is used as the liquid-impermeable sheet 12 that covers the back side (non-skin contact surface side) of the absorber 13, but in recent years, it has moisture permeability from the viewpoint of preventing stuffiness. Those are preferably used.
  • the water-impervious / moisture-permeable sheet can be obtained by melting and kneading inorganic fine particles such as calcium carbonate in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching the sheet in the uniaxial or biaxial direction.
  • a microporous sheet can be preferably used.
  • the liquid-impermeable sheet 12 is folded back on both sides in the width direction of the absorber 13 together with the top sheet 11, but the structure is not limited to this, and other known structures may be adopted. Can be done.
  • Three-dimensional gather BSs that mainly fit around the legs are formed on both sides of the interior body 10.
  • the three-dimensional gather BS includes a fixed portion fixed to a side portion on the back surface of the interior body 10, a main body portion extending from this fixed portion to a side portion on the surface of the interior body via the side of the interior body, and a main body portion.
  • the inverted part formed by fixing the front and rear ends of the interior body to the side part of the surface of the interior body in the inverted state, and the free part formed by making the portion of the inverted part non-fixed are folded into a double sheet. It is formed of the gathered sheet 15, and an elongated gather elastic member 16 is arranged at the tip of a free portion or the like between the double sheets.
  • the free portion protruding from the side edge portion of the absorber due to the contraction of the gather elastic member 16 rises in the product state.
  • a non-woven fabric having water repellency is preferably used as the gather sheet 15.
  • the gather elastic member 16 materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, and polyester, which are usually used, can be used. Further, in order to make it difficult to see from the outside, it is preferable to arrange the thickness at 925 dtex or less, the tension at 150 to 350%, and the interval at 7.0 mm or less. As the gather elastic member 16, a tape-shaped member having a certain width may be used in addition to the thread-shaped member as shown in the illustrated figure.
  • the material fibers constituting the gather sheet 15 are synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton. It can be a fiber, and a non-woven fabric obtained by an appropriate processing method such as a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. It is better to use a non-woven fabric that suppresses and has excellent breathability.
  • a silicone-based, paraffin metal-based, alkylchromic chloride-based water repellent etc. It is desirable to use a water-repellent treated non-woven fabric coated with.
  • the exterior body 20 has a two-layer structure composed of a pressing sheet 20A made of a non-woven fabric or the like and a back sheet 20B, respectively, and is between the pressing sheet 20A and the back sheet 20B and the back.
  • Elastic members 24 to 28 are arranged between the sheets of the folded portion 20C formed by folding the sheet 20B to the inner surface side at the edge of the waist opening, and the exterior body 20 contracts due to the contraction force of the elastic member in the natural length state. Elasticity is imparted to the exterior body 20.
  • the planar shape is substantially an hourglass shape as a whole due to the concave leg circumference lines 29 formed to form leg openings on both sides of the middle.
  • the waist elastic member 24 arranged in the vicinity of the waist opening 23, and the front body F and the back body B in the vertical direction. It has a plurality of lower waist elastic members 25 arranged along the width direction at intervals, and one side of each of the front body F and the rear body B, apart from the group of the lower waist elastic members 25. Crossing each other, curving and extending from the seal 21 to the crotch along one leg opening, across the crotch, and along the other leg opening to the other side seal 21. It includes a plurality of curved elastic members 26, 28 that are arranged at intervals without any problem.
  • These elastic members 24 to 28 are fixed in a state of being extended at a predetermined extension rate along the extending direction thereof.
  • the exterior body 20 is not provided with an elastic member that is continuous from the side seal portion of the front body F to the side seal portion of the rear body B along the leg circumference line 29.
  • the waist elastic member 24 includes a plurality of thread rubbers and the like arranged at intervals in the vertical direction in the vicinity of the edge of the waist opening within the range of the side seal portion 21 in which the front body F and the back body B are joined. It is an elongated elastic member of the above, and is for attaching a diaper to the body by applying an elastic force so as to tighten the circumference of the body.
  • thread rubber is used for the waist elastic member 24 in the illustrated example, for example, a tape-shaped elastic member may be used.
  • the waist elastic member 24 of the illustrated form is sandwiched between the non-woven fabrics of the folded portion 20C of the back sheet 20B at the waist portion, it may be sandwiched between the pressing sheet 20A and the back sheet 20B.
  • the waist lower elastic member 25 is an elongated elastic member such as a rubber thread arranged at intervals in the vertical direction in a range in the front-rear direction having a side seal portion 21, and is a waist of a front body F and a back body B.
  • the purpose is to give elastic force in the width direction to the surrounding parts to bring the diaper into close contact with the body.
  • the boundary between the waist elastic member 24 and the waist lower elastic member 25 does not necessarily have to be clear. For example, among the elastic members arranged in the width direction at intervals in the vertical direction on the front body F and the back body B, some of the elastic members on the upper side function as waist elastic members even if the number cannot be specified. It suffices that the remaining elastic member functions as the elastic member below the waist.
  • the dorsal curved elastic member 26 arranged separately from the waist lower elastic member 25 is an elongated elastic member such as rubber thread, and is arranged along a predetermined curve.
  • the dorsal curved elastic member 26 may be one, but is preferably a plurality, and in the illustrated example, it is an elongated elastic member such as four rubber threads, and these dorsal curved elastic members 26 are They are spaced apart from each other without intersecting each other.
  • the dorsal curved elastic member 26 is not substantially arranged as a bundle with a few elastic members closely spaced, but is preferably 3 to 20 mm so as to form a predetermined expansion / contraction zone. 3 or more, preferably 4 or more, are arranged at intervals of about 6 to 16 mm.
  • the ventral curved elastic member 28 arranged separately from the waist lower elastic member 25 is an elongated elastic member such as rubber thread, and is arranged along a predetermined curve. ..
  • the ventral curved elastic member 28 may be one, but is preferably a plurality, and in the illustrated example, there are four filamentous elastic members, and these ventral curved elastic members 28 do not intersect with each other. , Are placed at intervals.
  • the ventral curved elastic member 28 is not substantially arranged as a bundle with a few elastic members closely spaced, but is preferably 3 to 20 mm so as to form a predetermined expansion / contraction zone. 3 or more, preferably 4 or more, are arranged at intervals of about 6 to 16 mm.
  • the waist lower elastic members 25 and the curved elastic members 26 and 28 arranged on the front body F and the rear body B are absorbed after being continuously fixed to the exterior body 20 at the time of manufacture.
  • the middle part in the width direction (the part surrounded by the alternate long and short dash line in the figure) of the part overlapping the body 13 is finely cut with a predetermined cutting pattern to form a non-shrinkable part on which no contraction force acts, and the side of the non-shrinkable part
  • the portion extending in the direction can be a contraction portion on which a contraction force acts (that is, a portion in which the waist lower elastic member 25 and the curved elastic members 26 and 28 are continuously left). This makes it possible to prevent unnecessary shrinkage of the interior body (particularly the absorber 13) in the width direction.
  • the waist lower elastic members 25 and the curved elastic members 26 and 28 can be continuously arranged across the interior body 10.
  • the exterior body 20 described above can be manufactured by, for example, the techniques described in JP-A-4-28363 and JP-A-11-332913. Further, in order to cut the curved elastic members 26 and 28 on the interior body 10 to make them discontinuous, it is described in JP-A-2002-35029, JP-A-2002-178428 and JP-A-2002-273808. The cutting method is preferably adopted.
  • the curved elastic members 26 and 28 may be provided only on either the front body F or the back body B.
  • the curved elastic members 26 and 28 are provided on both the front body F and the rear body B, a part or all of the group of the curved elastic members 28 arranged on the front body F side and the rear body B side are arranged.
  • a form (not shown) in which a part or all of the group of the curved elastic members 26 intersects with each other can be adopted, but as shown in the illustrated example, the group of the curved elastic members 28 arranged on the front body F side and the group of the curved elastic members 28 are used. It is preferable that the group of the curved elastic members 26 arranged on the back body B side is separated from each other in the vertical direction at a position slightly deviated to the front-rear intermediate portion, particularly the front body F, without intersecting with each other.
  • the elongation rate of the elastic members 24 to 28 at the time of fixing can be appropriately determined, but in the case of a normal adult, the waist elastic member 24 is about 160 to 320%, the waist lower elastic member 25 is about 160 to 320%, and is curved.
  • the elastic members 26 and 28 can be about 230 to 320%.
  • the cover sheet 50 is used to cover the front and rear ends of the interior body 10 mounted on the inner surface of the exterior body 20 and to prevent leakage from the front and rear edges of the interior body 10. , 60 may be provided.
  • the front cover sheet 50 extends over the entire width direction from the inner surface of the folded portion 20C of the waist side end portion of the inner surface of the front body F to the position where it overlaps with the front end portion of the interior body 10.
  • the rear cover sheet 60 extends over the entire width direction from the inner surface of the folded portion 20C of the waist side end portion of the inner surface of the rear body B to the position where it overlaps with the rear end portion of the interior body 10. It is also possible to extend the folded portion 20C formed by folding the outer body 20 to the inner surface of the diaper to a portion overlapping the inner body 10 to form a portion equivalent to the cover sheets 50 and 60 of the illustrated example.
  • the absorber 13 may have a single-layer structure as shown in FIGS. 3 to 5, or may have a structure composed of a plurality of layers.
  • the absorber 13 is based on a known material, for example, a stack of pulp fibers, an aggregate of filaments such as cellulose acetate, or a non-woven fabric, and if necessary, a highly absorbent polymer is mixed and fixed. Can be used.
  • the absorber 13 can be wrapped with a wrapping sheet 14 having liquid permeability and liquid retention, such as crepe paper, if necessary, for shape, polymer retention, and the like.
  • the absorber 13 is formed in an hourglass shape having a constricted portion narrower than both front and rear sides in the crotch portion, but may have an appropriate shape such as a rectangular shape.
  • FIG. 7 to 16 are enlarged views of the perforations 61 and 62 of the pants-type disposable diaper, which is a pants-type disposable diaper.
  • the perforations 61 and 62 are located on the center side in the width direction of the side seal 21 and extend along the side seal.
  • the perforation is a part where the exterior body can be separated along the perforation.
  • the perforations of the first form are the first perforation 61 extending in the vertical direction and the second perforation extending diagonally downward or upward from the lower end or the upper end of the first perforation to the side seal 21. It has 62 and. Then, one unit is made by the first and second perforations, and the perforation units are repeatedly provided in the vertical direction at intervals of 10 to 25 and 10 mm or less. The narrower the interval between perforations, the less likely it is that horizontal tears will occur, and the smoother the vertical separation will be. If the distance between the perforation units exceeds 10 mm, the vertical separation may stop and lateral tearing may occur.
  • the perforated hole penetrates the exterior body 20, and the angle ⁇ formed by the extension line 63 of the second perforation 62 and the first perforation 61 is not particularly limited, and is preferably 20 ° to 70 °, more preferably. It is 45 °, the distance 62W between the side seal 21 and the end of the second perforation in the width direction is preferably 1 mm to 15 mm, and the length 61L of the first perforation 61 is 10 mm, preferably 5 mm to 15 mm.
  • the length 62L of the second perforation 62 is 7 mm, preferably 3 mm to 10 mm, the first perforation is preferably longer than the second perforation (61L> 62L), and the perforation hole is 1 mm to 4 mm. ..
  • the length, angle, and cut size of the holes of the first perforation and the second perforation can be appropriately determined, but are preferably within the range of this embodiment.
  • a pair of perforations are provided on the front body F and the back body B, respectively. Therefore, for example, when the wearer is wearing a pants-type disposable diaper, one perforation can be sequentially separated, and a pair of perforations can be separated at the same time from the ventral side or the dorsal side. .. Further, the perforations can be provided only on the front body and only on the back body, and may be provided on either the front body or the back body side. It is assumed that the perforations are installed between the side seal 21 and the interior body 10 on the center side in the width direction.
  • FIG. 7 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the first embodiment.
  • the elastic members 24 and 25 are omitted. It can be separated vertically downward from the waist opening to the leg opening.
  • the second downward perforation extends diagonally downward from the lower end of the first perforation. Since the force applied to the lower end of the lower second perforation 62 toward the first perforation 61 of the next unit, continuous separation in the vertical direction is possible.
  • the end of the first perforation and the start point of the second perforation that extends diagonally to the side seal side are preferably connected, and the first perforation and the second perforation are in a series. Separation occurs continuously from the first perforation to the second perforation.
  • the continuity between the end of the first perforation and the start of the second perforation is preferably provided in all embodiments. Further, since the side seal 21 is on the extension line of the second perforation 62 in the downward direction, even if the disconnection at the end of the second perforation does not return to the first perforation 61, the leg is along the side seal 21. Separation proceeds to the opening. Since the side seal 21 itself is strong, lateral tearing is unlikely to occur in the middle.
  • FIG. 8 is an enlarged view of the vicinity of the perforation of the pants-type disposable diaper in the modified example of the first form.
  • the length of the second perforation 62 is shorter than the length of the first perforation 61.
  • FIG. 9 is an enlarged view of the vicinity of the perforation of the pants-type disposable diaper in the modified example of the first form.
  • the elastic members 24 and 25 are omitted.
  • the hole portion of the first perforation 61 is located on the extension line on the center side in the width direction from the end point of the second perforation 62. Even when a lateral tear occurs, the first perforation is arranged at the tip of the lateral tear, and the lateral tear is received by the first perforation, so that the lateral tear can be continuously separated in the vertical direction.
  • FIG. 10 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the first embodiment.
  • An upward second perforation is provided in which the direction of the second perforation 62 is opposite to that of the first form shown in FIG. 7, and the second perforation can be separated vertically upward from the leg opening to the waist opening.
  • the side seal 21 is on the extension line of the second perforation 62 in the upward direction, even if the disconnection at the end of the second perforation does not return to the first perforation 61, the side seal 21 can be used. Separation proceeds to the leg opening along. Since the side seal 21 itself is strong, lateral tearing is unlikely to occur in the middle.
  • the form that can be separated from the bottom to the top is easy for the caregiver to use when separating and changing the diaper. Further, a user with a weak force can easily separate the diaper because the force of pulling from the bottom to the top is stronger than the force of pulling down from the top to the bottom.
  • FIG. 11 is an enlarged view of the vicinity of the perforation of the pants-type disposable diaper in the first embodiment.
  • This embodiment has both the forms shown in FIGS. 7 and 10, and has an upward second perforation 62A and a downward second perforation 62B from the upper end and the lower end of the first perforation, respectively. Therefore, the separation can be performed either vertically downward or vertically upward, and the person requiring long-term care who has weak power can be separated easily, or the diaper can be easily separated when another person changes the diaper.
  • FIG. 12 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the second form.
  • the downward second perforation 62 is turned downward in the opposite direction toward the first perforation 61 of the next unit perforation.
  • the direction of separation is guided to the next perforation unit, and lateral tearing between the perforations is unlikely to occur. Separation proceeds more smoothly than in the first form up to.
  • FIG. 13 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the third embodiment.
  • the perforations in the form of FIG. 12 are directed from the bottom to the top in the vertical direction.
  • the second perforation 62 in the upward direction is turned upward in the opposite direction toward the first perforation 61 of the next unit perforation.
  • the direction of separation is guided to the next perforation unit, lateral tearing between perforations is less likely to occur, and the separation is smoothly connected as compared with the first embodiment shown in FIGS. 7 to 11.
  • the form that can be separated from the bottom to the top is easy for the caregiver to use when separating and changing the diaper. Further, a user with a weak force can easily separate the diaper because the force of pulling from the bottom to the top is stronger than the force of pulling down from the top to the bottom.
  • FIG. 14 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the fourth embodiment.
  • This form comprises a combination of the first and second forms shown in FIGS. 10 and 12.
  • the elastic members 24 and 25 are omitted.
  • the first perforation 61 of the next unit is on the extension line 62Q of the lower second perforation 62B end reverse direction lower folding 62C, and the extension line of the upper second perforation 62A.
  • the downward second perforation 62B of the previous unit is arranged on 62P. It is preferable that the length of the second downward perforation 62B is an appropriate length so as not to be too close to the side seal 21.
  • the lengths of the upward second perforation extension line 62P and the downward second perforation end folding extension line 62Q are not particularly specified. It also includes a form in which at least one of the lower second perforation 62C and the first perforation 61, and the upper second perforation 62A and the lower second perforation 62B are in contact with each other. In this embodiment, since the distance between the perforations is narrow and the separating force is difficult to escape between the perforations, guidance between the perforations of the unit is likely to occur, and tearing is likely to occur along the perforations.
  • FIG. 15 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the fifth embodiment.
  • the auxiliary perforations 64 are arranged along the first perforation 61 from the waist opening to the leg opening on the center side in the diaper width direction.
  • the auxiliary perforations 64 are for making it difficult for the elastic members 24 and 25 to interrupt the separation. Since the holes of the auxiliary perforations 64 are arranged in the portions where the holes of the first perforations 61 are not above the elastic members 24 and 25, even if the vertical separation is stopped by the elastic members and the holes are torn in the horizontal direction. Since there is a hole in the auxiliary perforation 64 at the tip of the lateral tear, the disconnection proceeds in the vertical direction again.
  • the vertical separation can be resumed by the auxiliary perforation 64 located proximal to the lateral tear.
  • the arrangement of the vertical auxiliary perforations 64 that assist and guide the disconnection can be provided in all the embodiments.
  • FIG. 16 is an enlarged view showing the vicinity of the perforation of the pants-type disposable diaper in the sixth embodiment.
  • the auxiliary hole 65 which is a U-shaped hole, on the extension line of the second perforation from the end point of the second perforation 62, it is unlikely that the separation is directed toward the side seal 21. Then, it leads to the next first perforation.
  • the arrangement of the auxiliary holes 65 that assist and guide the disconnection can be provided in all the embodiments.
  • the present invention can be used for all absorbent articles such as pants-type disposable diapers as in the above example, various disposable diapers such as tape type and pad type, and sanitary napkins.

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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)
PCT/JP2020/036057 2019-09-30 2020-09-24 パンツタイプ使い捨て着用物品 Ceased WO2021065675A1 (ja)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006521169A (ja) * 2003-03-21 2006-09-21 キンバリー クラーク ワールドワイド インコーポレイテッド 再締結可能な使い棄て吸収性物品の形成方法
JP2015092957A (ja) * 2013-11-11 2015-05-18 花王株式会社 パンツ型着用物品
JP2018139718A (ja) * 2017-02-27 2018-09-13 王子ホールディングス株式会社 パンツ型使い捨ておむつ

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Publication number Priority date Publication date Assignee Title
JP3908329B2 (ja) * 1997-04-25 2007-04-25 大日本印刷株式会社 ジッパー打ち抜きブレード及び打ち抜き型
JP4392173B2 (ja) * 2002-01-30 2009-12-24 ユニ・チャーム株式会社 パンツ型の使い捨て着用物品
JP4727494B2 (ja) * 2005-05-19 2011-07-20 ユニ・チャーム株式会社 パンツ型使い捨て着用物品
JP5709428B2 (ja) * 2010-07-30 2015-04-30 ユニ・チャーム株式会社 複数の物品包装体の結束システム
EP3482730B1 (en) * 2016-08-29 2021-08-25 Unicharm Corporation Absorbent article and method for manufacturing pull-up absorbent article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006521169A (ja) * 2003-03-21 2006-09-21 キンバリー クラーク ワールドワイド インコーポレイテッド 再締結可能な使い棄て吸収性物品の形成方法
JP2015092957A (ja) * 2013-11-11 2015-05-18 花王株式会社 パンツ型着用物品
JP2018139718A (ja) * 2017-02-27 2018-09-13 王子ホールディングス株式会社 パンツ型使い捨ておむつ

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