JP2013233183A - Disposable pants-type diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable pants-type diaper in which a girth part is folded along a waist opening edge, and the folding of the girth part can be maintained easily.SOLUTION: A disposable pants-type diaper 1 is formed to a pant configuration that has a waist opening edge 2 and a pair of leg opening edges 3, wherein a girth part 6 between the waist opening edge 2 and the leg opening edges 3 is folded like a bellows shape according to the waist opening edge 2 so that the waist opening edge 2 may become outside most to form a folding part 7, an elastic member 10 is disposed in the most outside strip that is in the most outside of the folding part 7 according to the waist opening edge 2, and the elastic member is not disposed in an strip that is inside than the most outside strip of the folding part 7, or an elastic member 11 is disposed so that stretch stress may become smaller than that of the most outside strip.

Description

  The present invention relates to a disposable pants-type diaper for infants or adults.

  Conventionally, disposable pants-type diapers formed in a pants shape are known, and a wearer can put on a diaper by passing both legs from the waist opening edge of the disposable pants-type diaper to the leg opening edge. By the way, when wearing a disposable pants-type diaper, the wearer's leg may not be smoothly passed through the leg opening edge of the diaper, and the wearer's leg may be caught on the diaper (particularly the leg opening edge). With respect to such a problem, Patent Document 1 discloses a disposable pants-type diaper that is easy to loosen by folding back a waist part (a front body and a back body) of the diaper along a waist opening edge.

JP 2010-104654 A

  In the disposable pants-type diaper in which the waistline portion is folded along the waist opening edge as disclosed in Patent Document 1, it is easy to attach the diaper that the waistline portion is appropriately maintained in a folded state. This is preferable. The present invention has been made in view of the above circumstances, and an object thereof is a disposable pants-type diaper in which a waist portion is folded along a waist opening edge, and the folding of the waist portion is easily maintained. To provide mold diapers.

  The disposable pants-type diaper of the present invention that has solved the above problems is formed in a pant shape having a waist opening edge and a pair of leg opening edges, and the waist portion between the waist opening edge and the leg opening edge is The fold portion is folded in a bellows shape along the waist opening edge so that the waist opening edge is the outermost side, and the elastic member is formed along the waist opening edge in the outermost belt-like portion on the outermost side of the folding portion. The belt-like portion provided inside the outermost belt-like portion of the folding portion is characterized in that no elastic member is provided or an elastic member is provided so that the elongation stress is smaller than that of the outermost belt-like portion. Have.

  In the disposable pants-type diaper of the present invention, since the folded portion of the waistline portion is held or fixed from the outside by the contraction force of the outermost belt-like portion, the folded portion is easily maintained in a state of being folded in a bellows shape. Therefore, when wearing a diaper, it becomes easier to put the leg into the leg opening with the waist around the bellows folded, and after putting the leg into the leg opening, the diaper is pulled up to the wearer's crotch Becomes easier. When the diaper is pulled up to the wearer's crotch, the waist opening edge and the outermost belt-like portion can be grasped and pulled up to the waist of the wearer, and the folding around the waist portion can be released, so that the diaper can be easily attached. The disposable pants-type diaper of the present invention makes it easy to wear a diaper, particularly when a caregiver or the like causes the wearer to wear the diaper.

  It is preferable that the trunk periphery is folded evenly at the folded portion. If the waistline portion is folded back evenly by the folded portion, the waist opening edge will face upward with the waistline portion folded in a bellows shape, and the diaper can be easily attached.

  In the folded portion, it is preferable that the overlapped waist portions are temporarily fastened. If the trunk periphery parts overlapped by the folding part are temporarily fastened, the trunk periphery parts are easily maintained in a state of being folded in a bellows shape.

  In the disposable pants-type diaper of the present invention, the folded portion of the waist portion that is folded in a bellows shape is held or fixed from the outside by the contraction force of the outermost belt-like portion, so that the folded portion is folded in a bellows shape It becomes easy to be maintained. Therefore, it becomes easy to put on a diaper in a state where the waist portion is folded in a bellows shape, and in particular, when a caregiver or the like puts the diaper on the wearer, the diaper is easily put on.

The perspective view of the use condition of the disposable pants-type diaper of this invention is represented. The perspective view before use of the disposable underpants type diaper shown in Drawing 1 is expressed. Sectional drawing of the folding part of the trunk periphery part of the disposable pants type diaper shown in FIG. 2 is represented.

  The disposable pants-type diaper of the present invention will be described with reference to the drawings. The disposable pants-type diaper of the present invention is not limited to the embodiment shown in the drawings. 1 to 3 show an example of the disposable pants-type diaper of the present invention. 1 is a perspective view of a disposable pants-type diaper in use, FIG. 2 is a perspective view of the disposable pants-type diaper before use, and FIG. 3 is a waist portion of the disposable pants-type diaper shown in FIG. Sectional drawing of the folding part of is represented.

  As shown in FIG. 1, the disposable pants-type diaper 1 of the present invention is formed in a pants shape having a waist opening edge 2 and a pair of leg opening edges 3. The disposable pants-type diaper 1 has a front abdomen, a back part, and a crotch part located between them. For example, the front abdomen and the back part are joined to each other so that a waist opening 4 and a pair of leg openings are provided. 5 are formed. The waist opening 4 is an opening through which the wearer's trunk passes, and the waist opening 4 is surrounded by the waist opening edge 2. The leg opening 5 is an opening through which the leg of the wearer passes, and the leg opening 5 is surrounded by the leg opening edge 3.

  About each name of a front part, a back part, and a crotch part, when wearing a disposable pants type diaper, a part applied to a wearer's stomach side is called a front part, and a part applied to a wearer's buttocks side is a back part. The part which is located between the front abdomen and the back part and is applied to the wearer's crotch is referred to as the crotch. The crotch portion is a portion located in the middle of the diaper divided into three in the vertical direction in a state where the front abdomen and the back portion of the disposable pants-type diaper are unbonded and developed in a plane, and is formed in a pants shape. In this case, it means a portion where both ends in the width direction of the diaper are not joined. In the disposable pants-type diaper 1, a portion between the waist opening edge 2 and the leg opening edge 3 (that is, a portion above the leg opening edge 3) is referred to as a waist part 6, and the waist part 6 is a front abdomen and a back part. It corresponds to.

  In the disposable pants-type diaper, the vertical direction means the direction from the front to the back of the disposable pants-type diaper, and when the disposable pants-type diaper is worn, the wearer's vertical direction or the wearer's crotch front-back direction It corresponds to. In the disposable pants-type diaper, the waist opening edge side is referred to as the upper side and the crotch side is referred to as the lower side in a state of being formed in a pant shape. The width direction means a direction in which the front abdomen and the back part of the disposable pants-type diaper are unbonded and deployed in a plane, on the same plane as the disposable pants-type diaper and perpendicular to the vertical direction. It corresponds to the wearer's left-right direction when wearing a pants-type diaper. The inside of disposable pants-type diapers means the side that faces the wearer's skin when wearing diapers, and the outside of disposable pants-type diapers means the side that faces outside when wearing diapers. means.

  The disposable pants-type diaper 1 preferably includes an absorbent core 12 at the crotch. The absorptive core 12 should just exist in at least a crotch part, and may exist over a front part and / or a back part further. In addition, it is preferable that the absorptive core 12 does not exist in the folding part 7 mentioned later.

  The disposable pants-type diaper includes, for example, a laminate in which an absorbent core is sandwiched between a top sheet and a back sheet, and the laminate may have a pants shape. In the disposable pants-type diaper, the outer sheet may have a pant shape, and an absorbent main body in which an absorbent core is sandwiched between the top sheet and the back sheet may be provided on the inner surface of the outer sheet.

  The top sheet is a sheet positioned on the wearer side when the disposable pants-type diaper is worn, and is preferably liquid permeable. Examples of the top sheet include nonwoven fabrics formed from hydrophilic fibers such as cellulose, rayon, and cotton; and hydrophobic properties such as polyolefin (for example, polypropylene and polyethylene), polyester (for example, PET), and polyamide (for example, nylon). A non-woven fabric formed from fibers, in which the surface of hydrophobic fibers is hydrophilized with a surfactant, can be used. Further, as the top sheet, a woven fabric, a knitted fabric, a plastic film in which holes are formed, or the like may be used.

  The back sheet is a sheet located on the side opposite to the wearer when the disposable pants-type diaper is worn, that is, on the outside, and is preferably liquid-impermeable. As the back sheet, a non-woven fabric formed from hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), polyamide (for example, nylon), a plastic film, or the like can be used. Moreover, you may use the laminated body of a nonwoven fabric and a plastic film. In the present invention, liquid impermeability includes the meaning of water repellency.

  The exterior sheet may be liquid permeable or liquid impermeable. As the exterior sheet, a sheet material usable for a top sheet or a back sheet can be used. The exterior sheet is preferably formed by laminating the outer sheet on the inner sheet, and more preferably formed by laminating the liquid-impermeable outer sheet on the liquid-permeable inner sheet.

  When a nonwoven fabric is used as each sheet material described above, the nonwoven fabric is preferably manufactured by a spunbond method, an air-through method, a point bond method, a melt blow method, an airlaid method, or a combination of these methods. Moreover, you may use the nonwoven fabric manufactured by SMS method which combined the spun bond method and the melt blow method.

  The absorbent core is not particularly limited as long as it includes an absorbent material that can absorb excrement such as urine. As the absorbent core, for example, a molded body obtained by molding the absorbent material into a predetermined shape is used, or the absorbent material is covered with a sheet member such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable nonwoven fabric. Things can be used. Examples of the absorbent material contained in the absorbent core include hydrophilic fibers such as cellulose fibers (for example, pulverized pulp fibers), polyacrylic acid-based materials, polyaspartic acid-based materials, cellulose-based materials, starch-acrylonitrile-based materials, and the like. Water-absorbing resin etc. are mentioned. In addition, the water-absorbing material may include heat-fusible fibers such as polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and polyamide fibers such as nylon. These heat-fusible fibers may be subjected to a hydrophilic treatment with a surfactant or the like in order to increase the affinity with body fluid such as urine.

  It is preferable that an absorptive material contains a hydrophilic fiber from the point which improves the absorption speed | rates, such as urine. Moreover, it is preferable that an absorptive material contains a water absorbing resin from the point which raises absorption capacity. As the absorbent material, for example, it is preferable to use a material in which a water-absorbing resin is mixed or dispersed in an aggregate of hydrophilic fibers.

  The shape (planar shape) of the absorbent core is not particularly limited. The shape of the absorbent core may be appropriately determined depending on the application, and examples thereof include a substantially rectangular shape, an hourglass shape, a gourd shape, and a battledore shape.

  It is preferable that rising flaps are provided on both sides in the width direction of the absorbent core. By providing the rising flap, side leakage of excrement such as urine can be prevented. The rising flap is preferably liquid impermeable.

  It is preferable that an elastic member for standing is provided on the upper end portion (end portion on the wearer side) in a state where the rising flap is raised. Due to the contraction force of the elastic member for standing up, the rising flap is likely to stand up.

  The disposable pants-type diaper 1 is preferably provided with leg elastic members 13 and 14 along the leg opening edge 3. In the drawing, a front leg elastic member 13 provided along both leg opening edges 3 on the front side of the diaper across the crotch and a rear leg provided along both leg opening edges 3 on the rear side of the diaper across the crotch. The elastic member 14 is arranged. The front leg elastic member 13 and the rear leg elastic member 14 provide a leg elastic member over substantially the entire circumference of the leg opening edge 3.

  The disposable pants-type diaper 1 shown in FIG. 1 has a trunk portion 6 folded in a bellows shape to form a folded portion 7 before use, as shown in FIGS. The folding portion 7 is formed by folding the waist portion 6 along the waist opening edge 2 in a bellows shape so that the waist opening edge 2 is on the outermost side. As shown in FIGS. 1 and 3, in the disposable pants-type diaper 1, the waistline portion 6 is folded back into a mountain fold at locations indicated by arrows F 1 and F 3, and at locations indicated by arrows F 2 and F 4. By being folded back into a valley fold, the trunk periphery 6 is folded into a bellows shape. In addition, a mountain fold and a valley fold shall be determined by seeing the disposable pants-type diaper 1 from the outside.

  The trunk periphery 6 is folded at a fold extending along the waist opening edge 2 when folded in a bellows shape. Mountain folds and valley folds of the waistline portion 6 are alternately formed, and the fold farthest from the waist opening edge 2 is a valley fold. As a result, the trunk periphery 6 is folded in a bellows shape so that the waist opening edge 2 is on the outermost side.

  The folding part 7 means a part where the waist part 6 is folded in a bellows shape and the waist part 6 is overlapped. In the foldable portion 7, the waistline portion 6 is divided by a crease along the waist opening edge 2 to form a plurality of band-shaped portions. In the present invention, the outermost belt-like portion 8 on the outermost side of the folding portion 7 is referred to as the outermost belt-like portion 8. A band-shaped portion other than the outermost band-shaped portion 8, that is, a band-shaped portion inside the outermost band-shaped portion 8 is referred to as an inner band-shaped portion 9.

  The disposable pants-type diaper 1 has an elastic member 10 along the waist opening edge 2 on the outermost belt-like portion 8 so that the waistline portion 6 is easily maintained in a accordion-like state at the folding portion 7 before use. And no elastic member is provided on the inner belt portion 9 or the inner belt portion 9 has an elastic member 11 on the inner belt portion 9 such that the elongation stress is smaller than that of the outermost belt portion 8. Is provided. In the drawing, an embodiment in which an elastic member 11 is provided on the inner belt-like portion 9 is shown. By forming the outermost belt-like portion 8 and the inner belt-like portion 9 in this way, the folding portion 7 is held or fixed from the outside by the contraction force of the outermost belt-like portion 8, and the folding portion 7 has a bellows shape. It becomes easy to be maintained in the folded state.

  When a plurality of the inner belt-like portions 9 are formed, no elastic member is provided for any inner belt-like portion 9, or the inner belt-like portion 9 has a lower elongation stress than the outermost belt-like portion 8. The elastic member 11 is provided. In the case where a plurality of inner band portions 9 are formed, both the inner band portion 9 where the elastic member is not provided and the inner band portion 9 where the elastic member 11 is provided may exist.

  The elastic member 10 and the elastic member 11 (when the elastic member 11 is provided) are preferably disposed between two sheet members, for example, between a top sheet and a back sheet, or an inner sheet and an outer sheet of an exterior sheet. It is preferable to arrange | position between.

  The elongation stress of the outermost belt-like portion 8 and the inner belt-like portion 9 is obtained by measuring the stress at 50% elongation. Specifically, the outermost belt-like portion 8 and the inner belt-like portion 9 are cut out with a width of 1 inch and a length of 200 mm to form a test piece, and this test piece is pulled with a tensile tester and the stress at that time is measured. . At this time, the test piece is fixed between the fasteners so that the grip interval is 100 mm, and the stress is measured when the distance between the fasteners is 150 mm while pulling the test piece at a pulling speed of 200 mm / min. The value at this time is defined as elongation stress. In addition, when the outermost belt-like portion 8 and the inner belt-like portion 9 cannot be cut out with a length of 200 mm, the length may be less than 200 mm as long as the lengths of the cut-out test pieces are the same.

  When the elastic member 11 is provided in the inner belt-shaped portion 9, the elastic members 10 and 11 may be provided as follows, for example. That is, the number of elastic members 11 provided in one inner belt-like portion 9 is less than the number of elastic members 10 provided in the outermost belt-like portion 8; the elastic members 11 are fixed to the inner belt-like portion 9. The elongation rate of the elastic member 11 is smaller than the elongation rate of the elastic member 10 when the elastic member 10 is fixed to the outermost belt-like portion 8; A member may be used.

  The inner band portion 9 may not be provided with an elastic member. When the elastic member is not provided on the inner belt portion 9, the elongation stress of the inner belt portion 9 is not particularly defined.

  Since the disposable pants-type diaper 1 can be easily maintained in a state in which the waistline portion 6 is folded in a bellows shape by forming the waistline portion 6 as described above, the leg opening 5 is attached when the diaper 1 is worn. It is easy to put the leg into the leg opening 5 and after the leg is put into the leg opening 5, the diaper 1 can be easily pulled up to the wearer's crotch. When the diaper 1 is pulled up to the wearer's crotch, the waist opening edge 2 and the outermost belt-shaped portion 8 are grasped and pulled up to the wearer's waist, and the folding of the waistline portion 6 is released, so that the diaper 1 can be easily attached. . The disposable pants-type diaper 1 of the present invention makes it easy to attach the diaper 1 when a caregiver or the like causes the wearer to wear the diaper 1.

  The number of folding of the waistline portion 6 at the folding portion 7 is not particularly limited, but the folding number of the waistline portion 6 at the folding portion 7 is preferably 2 times or more, preferably 8 times or less, more preferably 6 times or less. More preferably 4 times or less. By folding the waistline portion 6 in this way, it becomes easy to fold the waistline portion 6 into a bellows shape, and the diaper 1 can be easily attached while the waistline portion 6 is folded into a bellows shape.

  It is preferable that the trunk periphery 6 is even-folded by the folding portion 7. If the waistline portion 6 is folded back evenly by the folding portion 7, the waist opening edge 2 faces upward with the waistline portion 6 folded in a bellows shape, and the diaper 1 can be easily attached. Moreover, since the inner surface (surface facing the wearer's skin) of the diaper 1 is not exposed to the outside, the inner surface of the diaper 1 becomes difficult to get dirty, and the wearer can comfortably wear the diaper 1.

  In the disposable pants-type diaper 1, it is preferable that the waistline portions 6 overlapped by the folding portion 7 are temporarily secured before use. That is, it is preferable that the adjacent waistline parts 6 are temporarily fastened in the folding part 7. If the trunk periphery parts 6 overlapped by the folding part 7 are temporarily fastened, the trunk periphery part 6 is easily maintained in a state of being folded in a bellows shape. In the temporary fastening, it is only necessary that the waistline portions 6 are joined to the extent that the temporary fastening is released by pulling the waistline portion 6 by hand.

  Temporary fastening between the waist portions 6 may be performed by a conventionally known joining means such as an adhesive, heat fusion, or ultrasonic fusion. The bonding strength of the portion to which the waistline portion 6 is temporarily fixed can be adjusted by appropriately selecting the type and composition of the adhesive, the application pattern of the adhesive, and the bonding pattern of heat fusion or ultrasonic fusion. it can. For example, the bonding strength of temporary fixing can be lowered by using an adhesive with low adhesive strength, lowering the heat fusion temperature, reducing the area of the temporary fixing portion, or intermittently fixing temporarily. it can. Alternatively, the waistline 6 may be temporarily fastened by passing a temporary fastening member through the waistline 6 folded in a bellows shape. At this time, the temporary fastening member is preferably in the form of a thread or a band, and is preferably composed of a fiber, a plastic film, or the like. The temporary fastening member may be adjusted in strength or cut so as to be easily cut by manually pulling or twisting.

1: disposable pants-type diaper 2: waist opening edge 3: leg opening edge 6: waist part 7: folding part 8: outermost belt-like part 9: belt-like part (inner belt-like part) inside the outermost belt-like part
10, 11: Elastic member 12: Absorbent core

Claims (3)

A disposable pants-type diaper formed in a pants shape having a waist opening edge and a pair of leg opening edges,
The waist portion between the waist opening edge and the leg opening edge forms a folded portion folded in a bellows shape along the waist opening edge so that the waist opening edge is the outermost side,
An elastic member is provided along the waist opening edge on the outermost belt-like portion on the outermost side of the folded portion,
An elastic member is not provided in the belt-like portion inside the outermost belt-like portion of the folding portion, or an elastic member is provided so that an elongation stress is smaller than that of the outermost belt-like portion. Disposable pants-type diapers.   The disposable pants-type diaper according to claim 1, wherein the waist portion is even-folded by the folded portion.   The disposable pants-type diaper according to claim 1 or 2, wherein the waist portions overlapped at the folding portion are temporarily fastened.

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