JP2009207563A - Disposable diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable diaper which is excellent in the effect of preventing the abdomen from getting cold. <P>SOLUTION: For the disposable diaper, a target tape 80 has a base material layer 81 attached to an abdominal side outer surface, and a fixing layer 82 to which a fastening tape 130 provided on the outer surface of the base material layer 81 is to be fixed, and the heat resistivity of the base material layer 81 is ≥100×10<SP>-6</SP>m<SP>2</SP>K/W. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disposable diaper designed to prevent abdominal chills.

Many users of disposable diapers are infants or the elderly. These users do not have sufficient body temperature control functions and are easily affected by outside air temperature, so they tend to cause poor physical condition such as diarrhea due to abdominal chills. Thus, as a disposable diaper for preventing such coldness of the body, one that covers the abdomen over a wide area like a stomach wrap has been proposed (see Patent Document 1).
Moreover, it is a diaper using the short fiber nonwoven fabric and / or the long fiber nonwoven fabric to which the highly hygroscopic fine particles are adhered at least partly or entirely, and the maximum temperature rise at the time of moisture absorption and / or water absorption is 3 ° C. or more. A hygroscopic / water-absorbing exothermic diaper characterized by the above has also been proposed (see Patent Document 2).
JP 2006-43015 A JP 2003-102784 A

However, simply increasing the covering area of the abdomen has no heating effect. In addition, when utilizing moisture absorption / water absorption exothermicity, the amount of heat generated is scarce even if the moisture is not sufficiently supplied, even if it is sufficiently supplied. Therefore, in these conventional techniques, the effect of preventing abdominal chilling was insufficient, particularly under conditions where the outside air temperature was low.
Then, the main subject of this invention is providing the disposable diaper excellent in the belly cooling prevention effect.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
A liquid-permeable top sheet that forms the body-side surface, a liquid-impermeable sheet that is located on the back side of the sheet, and a sheet that is disposed between these sheets and extends from the lower abdomen through the crotch to the buttocks along the center in the width direction. In a disposable diaper with an absorbent body,
Fastening tape is provided on both sides, a target tape to which the fastening tape is fastened is provided on the ventral outer surface, and the thermal resistance of the target tape is 2000 × 10 ⁻⁶ m ² · K / W or more is there,
A disposable diaper characterized by that.

(Function and effect)
In the present invention, by using a highly heat-insulating sheet having a thermal resistivity of 2000 × 10 ⁻⁶ m ² · K / W or more as a target tape that is always provided in a part that comes into contact with the abdomen in a normal fastening diaper. The abdomen of the user is made less susceptible to the outside air temperature. In order to prevent abdominal cooling, a highly heat-insulating sheet can be used for any of the components positioned between the outer surface of the diaper and the absorber, but a so-called back sheet (for example, an exterior sheet or If a liquid-impermeable sheet or the like is used as a highly heat-insulating sheet, the effect of preventing abdominal chilling can be obtained, but not only the feeling of use of the crotch part (softness, breathability, etc.) deteriorates, but also the heat insulation of the crotch part Will also improve. Since the user feels uncomfortable when the temperature of the crotch increases, it is not preferable. Moreover, since the use area of a high heat insulation sheet also becomes large, material cost increases greatly. In order to improve the heat insulation of only the part located in the abdomen, a high heat insulation sheet can be attached to the outer surface of the stomach side of the diaper, or the high heat insulation sheet can be sandwiched between the outer surface and the absorber, but not only the materials The process also increases. In contrast, if a highly heat-insulating sheet is used as the target tape as described in this section, the material cost slightly increases, but a highly heat-insulating sheet is used on almost the entire surface of the diaper, or a high heat-insulating sheet is separately provided on the abdomen. It is preferable that the cost increase can be suppressed as compared with the case of sandwiching, and that only the change of the target tape is required, so that the change of the manufacturing process is unnecessary.

  In addition, the thermal resistivity in this invention means the value measured by JISA1412-1 (The measuring method of the thermal resistance and thermal conductivity of a heat insulating material-1st part: The protection hot plate method (GHP method)). To do.

<Invention of Claim 2>
The disposable diaper according to claim 1, wherein a heating element that generates heat by an oxidation reaction in which iron reacts with oxygen and water to become ferric hydroxide is disposed between the target tape and the absorber.

(Function and effect)
As described in this section, when a heating element is disposed between a highly heat-insulating target tape and an absorbent body, it is possible to effectively prevent the user from getting cold due to the synergistic effect of heating and heat retention. The heat generation principle employed in the invention described in this section uses an oxidation reaction in which iron reacts with oxygen and water to form ferric hydroxide, and the surface temperature rises to 40 degrees or more. . This is a heat generation principle that is widely used as a disposable body warmer, but the invention described in this section is not merely a utilization of this. That is, in this oxidation reaction, water plays a role of accelerating the oxidation rate, so if the heating element is placed on the body side of the absorber, the oxidation rate becomes faster than necessary due to contact with sweat and urine, Sustainability of heating will decrease. In addition, since the heating element comes into contact with the user substantially, there is a risk of causing low temperature burns. On the other hand, if the heating element is placed outside the absorber, it will be difficult to come into contact with sweat and urine, but simply adopting such arrangement will make it easier to cool due to the influence of the outside air temperature, and the heating effect will be poor. Sustainability is also reduced. Therefore, the invention described in this section can heat the absorber by disposing a heating element on the outer surface side of the absorber, and indirectly warm the user's skin surface to a comfortable temperature of around 40 degrees. It is a thing. Furthermore, the heat resistance of the target tape located on the outer surface side of the heating element is set to 100 × 10 ⁻⁶ m ² · K / W or more to improve the heat insulation and make it less susceptible to the outside air temperature. A temperature effect and sustainability can be exhibited.

<Invention of Claim 3>
The disposable diaper of Claim 1 or 2 with which the pocket which has an opening part in the peripheral edge of a target tape is formed between the said target tape and the said ventral | abdominal outer surface facing this.

(Function and effect)
When using a heating element as described above, the heating element may be built in so that it cannot be taken in and out, but if it is too warm or the diaper is discarded, the heating element is taken out, the heating element is returned again, or a new heating element is installed. It is convenient to put it in. Therefore, as described above, the target tape itself is highly insulated, and the pocket is formed using the target tape and the ventral outer surface as described in this section, so that the heating element can be stored in the pocket. is there. This configuration is preferable because there is no increase in the number of materials and manufacturing processes. Further, it is possible to appropriately select and combine heating elements having different types, sizes, and internal capacities according to the required heat generation amount and duration.

<Invention of Claim 4>
The disposable diaper of Claim 1 or 2 with which the pocket which has an opening in a waist edge is provided between the said ventral | abdominal outer surface and the said absorber.

(Function and effect)
Thus, by providing the accommodation pocket of the heating element at a position closer to the skin side, in addition to the advantages of the pockets described above, there are also the advantages of heat insulation to the outside and improved heat transfer to the skin.

<Invention of Claim 5>
The waist side edge of the target tape is placed with the waist side edge of the diaper, or located between the waist side edge of the diaper and the waist side edge of the absorbent body,
When the product length is the length in the front-rear direction from the waist side edge on the ventral side to the waist side edge on the back side through the crotch part, the crotch side edge of the target tape is from the waist side edge of the diaper. It is located on the 1 / 4-1 / 3 crotch side of the product length,
The side edges of the target tape are located at the same positions as the side edges of the absorber on the left and right sides, or between the side edges of the absorber and the diaper side edges,
The disposable diaper of any one of Claims 1-4.

(Function and effect)
It is preferable that the size and arrangement of the highly heat-insulating target tape are in the range described in this section because high heat insulating properties are exhibited over a wide range and the size is sufficient for the target tape.

<Invention of Claim 6>
A ventral side flap portion extending outward in the width direction is provided on both sides in the width direction of the absorbent body on the ventral side, and the leg peripheral edges on the outer side in the width direction of the ventral side flap portion are along the vertical direction. It consists of a waist side leg circumference edge that forms a straight line and a crotch side leg circumference edge that forms a curved shape along the leg circumference,
The crotch side edge of the target tape is located on the crotch side from the upper end of the crotch side leg periphery edge,
The crotch side portion of the target tape has a shape whose width becomes narrower toward the crotch side,
The disposable diaper according to claim 5.

(Function and effect)
The highly heat-insulating target tape preferably extends over a wider area. However, when the crotch side edge of the target tape is positioned on the crotch side rather than the upper end of the crotch side leg circumference edge, the hardness of the target tape affects the leg circumference edge. It is preferable that the width becomes narrower toward the crotch side so that the hardness of the target tape does not easily affect the edge around the leg.

<Invention of Claim 7>
The elastic elastic members around the legs are fixed to the left and right sides on the outer surface side of the absorbent body in a state of extending in the front-rear direction, and the gather parts are formed only in the middle part in the front-rear direction by these elastic elastic members around the legs. And
The side edges of the target tape are located at the same position as the leg elastic elastic members on the left and right sides, or between the leg elastic elastic members and the diaper side edges,
The crotch side edge of the target tape is located on the crotch side with respect to the waist side end edge of the abdomen side of the gather part, and the target tape does not have a hardened part crimped by the gather part The disposable diaper of Claim 6 comprised.

(Function and effect)
It is preferable that the highly heat-insulating target tape extends more widely. However, when the target tape is overlapped and fixed to the gathered portion of the elastic elastic member around the legs arranged as described in this section, the target tape in that portion The wrinkles become harder. Therefore, it is preferable to be configured as described in this section.

<Invention of Claim 8>
A temperature display member is interposed in the target tape or between the target tape and the absorber, and the temperature display of the temperature display member is configured to be visible from the outer surface of the target tape. The disposable diaper of any one of Claims 1-7.

(Function and effect)
By providing such a temperature display member, the temperature of the heating element can be confirmed from the outside, and excessive heating can be prevented.

  As described above, according to the present invention, there are advantages such as a disposable diaper having an excellent effect of preventing abdominal chill.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, “front-rear direction” means a direction connecting the ventral side (front side) and back side (rear side), and “width direction” means a direction (left-right direction) orthogonal to the front-rear direction. In addition, the “vertical direction” means the wearing state of the diaper, that is, the direction perpendicular to the waistline direction when the diaper is folded in two at the crotch so that both the front body side and the back body side of the diaper are overlapped, In other words, it means the direction connecting the waist part side and the crotch part side.

  1 to 5 show an example of a stationary disposable diaper according to the present invention. 3 to 5 are diagrams showing a cross section taken along line 3-3, line 4-4, and line 5-5 in FIG. 1, respectively. This fixed disposable diaper is a part that extends from the lower abdomen along the center in the width direction through the crotch to cover the buttocks, and a liquid-permeable top sheet that forms the body side surface, and an outer surface A main body 10 that is a portion where the absorber 56 is interposed between the liquid-impermeable sheet positioned on the side, and a portion that extends to the front side and the rear side of the main body 10, and the absorber 56. It has a ventral side end flap part FE and a back side end flap part BE which are parts which do not have.

  The fixed disposable diaper includes a pair of abdominal side flap portions FF and FF extending to the outside in the width direction from the crotch portion C on both sides of the waist side portion of the abdominal side F, and a back side B On both sides of the waist side portion, a pair of back side flap portions BF, BF extending to the outside in the width direction from the crotch portion C are provided. Moreover, the fastening tape 130 as a locking member is provided in the back side flap part BF and BF, respectively.

  More specifically, the entire outer surface of the main body 10 and the side flap portions BF and FF on the back side and the abdomen side is formed by the exterior sheet 12. In particular, in the main body 10, the liquid-impermeable sheet 11 is fixed to the inner surface side of the exterior sheet 12 by an adhesive such as a hot melt adhesive, and the absorbent element 50 is further disposed on the inner surface side of the liquid-impermeable sheet 11. The intermediate sheet 40 and the top sheet 30 are laminated in this order. The top sheet 30 and the liquid-impermeable sheet 11 are rectangular in the illustrated example, have slightly larger dimensions in the front-rear direction and the width direction than the absorbent element 50, and are eaten from the side edges of the absorbent element 50 in the top sheet 30. The peripheral edge that protrudes and the peripheral edge that protrudes from the side edge of the absorbent element 50 in the liquid-impermeable sheet 11 are fixed by a hot melt adhesive or the like. The liquid-impermeable sheet 11 is made of a moisture-permeable polyethylene film or the like and is formed to be slightly wider than the top sheet 30.

  Further, side barrier cuffs 60, 60 projecting (standing) toward the wearer's skin are provided on both sides of the main body 10, and barrier sheets 62, which form the side barrier cuffs 60, 60, are provided. 62 extends across the entire widthwise outer side of the main body 10, including the inner surfaces of the dorsal and ventral side flap portions BF, FF.

Hereinafter, the material and characteristic parts of each part will be described in order (exterior sheet).
The exterior sheet 12 is a part that supports the absorbent element 50 and is attached to the wearer. The exterior sheet 12 has an hourglass shape in which the center part in the front-rear direction on both sides is constricted, and this is a part into which the wearer's leg is placed.

The exterior sheet 12 is preferably a non-woven fabric, but is not limited thereto. The type of the nonwoven fabric is not particularly limited, and as the material fiber, for example, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or polyamide, recycled fibers such as rayon or cupra, and natural fibers such as cotton are used. As a processing method, a spunlace method, a spunbond method, a thermal bond method, an air-through method, a needle punch method, or the like can be used. However, a long-fiber nonwoven fabric such as a spunbond nonwoven fabric, an SMS nonwoven fabric, or an SMMS nonwoven fabric is preferable in that both the touch and strength can be achieved. In addition to using a single nonwoven fabric, a plurality of nonwoven fabrics can be used. In the latter case, the nonwoven fabrics 12 are preferably bonded to each other with a hot melt adhesive or the like. When using a nonwoven fabric, the fabric weight is preferably 10 to 50 g / m ² , particularly 15 to 30 g / m ² .

(Liquid impervious sheet)
The material of the liquid-impermeable sheet 11 is not particularly limited. For example, the liquid-impermeable sheet 11 is substantially made of an olefin resin such as polyethylene or polypropylene, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet, or a waterproof film. Non-woven fabrics that ensure liquid impermeability (in this case, a liquid-impermeable sheet is composed of a waterproof film and a non-woven fabric). Of course, in addition to this, materials having liquid impermeability and moisture permeability, which have been used and used in recent years from the viewpoint of preventing stuffiness, can also be exemplified. As the sheet of the material having liquid impermeability and moisture permeability, for example, an inorganic filler is kneaded in an olefin resin such as polyethylene or polypropylene, and the sheet is formed, and then stretched in a uniaxial or biaxial direction. Examples of the microporous sheet obtained in this way can be given. In addition, non-woven fabric using micro-denier fiber, strengthening leak-proofing by reducing the voids of the fiber by applying heat or pressure, and applying water-absorbing resin or hydrophobic resin or water repellent. A sheet that is liquid-impermeable without using a film can also be used as the liquid-impermeable sheet 11.

(Top sheet)
The top sheet 30 is sufficient if it has liquid permeability, and for example, a porous or non-porous nonwoven fabric or a porous plastic sheet can be used. Of these, the nonwoven fabric is not particularly limited as to what the raw fiber is. For example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated. Furthermore, the nonwoven fabric may be manufactured by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method. For example, the spun lace method is a preferable processing method for obtaining flexibility and drapeability, and the thermal bond method is for obtaining bulkiness and softness.

  The top sheet 30 may be composed of a single sheet or a laminated sheet obtained by bonding two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.

(Intermediate sheet)
An intermediate sheet (also referred to as a second sheet) 40 can be provided between the top sheet 30 and the absorbent element 50 in order to move excrement that has passed through the top sheet 30 to the absorbent body and prevent reversal. This intermediate sheet 40 not only improves the absorption performance by the absorber by quickly transferring the excrement to the absorber, but also prevents the excretion of the absorbed excrement from returning from the absorber, making the top sheet 30 surface feel better To do. The intermediate sheet 40 can be omitted.

  As the intermediate sheet 40, the same material as the top sheet 30 can be used. The intermediate sheet 40 is preferably bonded to the top sheet 30. When heat embossing or ultrasonic welding is used for the bonding, the material of the intermediate sheet 40 preferably has the same melting point as the top sheet 30. Further, considering the permeation of the solid content in the stool, the fineness of the fiber used for the intermediate sheet 40 is preferably 5.0 to 7.0 dtex, but the liquid residue in the top sheet 30 increases. On the other hand, when the fineness of the fiber used for the intermediate sheet 40 is 1.0 to 2.0 dtex, the liquid residue of the top sheet 30 hardly occurs, but the solid content of the stool is difficult to permeate. Therefore, it is preferable that the fiber of the nonwoven fabric used for the intermediate sheet 40 has a fineness of about 2.0 to 5.0 dtex.

  The intermediate sheet 40 in the illustrated form is arranged in the center shorter than the width of the absorbent element 50, but may be provided over the entire width. The length in the longitudinal direction of the intermediate sheet 40 may be the same as the entire length of the diaper, may be the same as the length of the absorbent element 50, or may be within a short length range centered on the region that receives the liquid.

(Side barrier cuffs)
In order to prevent urine and soft stool that move laterally on the top sheet 30 and prevent lateral leakage, side barrier cuffs 60, 60 that protrude (stand up) on the use surface side are provided on both sides of the product. Is preferred.

  The side barrier cuff 60 includes a barrier sheet 62 that is substantially continuous in the width direction, and an elongated elastic elastic member 63 that is fixed to the barrier sheet 62 in a stretched state along the front-rear direction. As the barrier sheet 62, a water-repellent nonwoven fabric can be used, and as the elastic elastic member 63, thread rubber or the like can be used. As shown in FIGS. 1 and 2, a plurality of elastic elastic members can be provided in addition to a plurality of elastic expansion members.

  The inner surface of the barrier sheet 62 has a fixing start end in the width direction on the side portion of the top sheet 30, and a portion on the outer side in the width direction from the fixing start end is on the side portion of the liquid-impermeable sheet 11 and on the outer side in the width direction. A fixing portion is formed by a hot melt adhesive or the like on the side portion of the exterior sheet 12 positioned. Out of the adhering portion, on the outer side in the width direction from the absorbent body 56, between the barrier sheet 62 and the sheet (the liquid-impermeable sheet 11 in the illustrated example) opposed thereto, an elongated shape such as thread rubber along the front-rear direction. Leg elastic elastic members 64 made of elastic elastic members are provided on the left and right sides, respectively. The elastic elastic members 64 around the legs are fixed in a stretched state only at the middle part in the front-rear direction of the fixed part, and the gathered part is contracted in the front-rear direction to form a gather. At the front and rear ends of the fixed part, The elastic elastic member does not exist, or even if it exists, it is in a contracted state and does not form a gather. By being configured in this way, the front and rear end portions of the diaper are not contracted in the front-rear direction, so that the fit around the waist is not deteriorated.

  Around the leg, the width direction inner side of the side barrier cuff 60 is fixed on the top sheet 30 at both ends in the longitudinal direction of the product, but the portion between them is an unfixed free part. The portion comes to stand by the contraction force of the rubber thread 63. When the diaper is worn, the diaper is attached to the body in the shape of a boat, and the contraction force of the rubber thread 63 acts, so that the side barrier cuffs 60 stand up and adhere to the legs around the contraction force of the rubber thread 63. . As a result, so-called side leakage from around the legs is prevented.

  Unlike the illustrated embodiment, the front and rear direction end portions of the barrier sheet 62 on the inner side in the width direction are divided into a base end side portion extending from the outer side in the width direction to the inner side in the width direction and a center side in the width direction of the base end side portion. It is also possible to fix in a double-folded state having a distal end side portion that is folded back from the edge toward the body side and extends outward in the width direction, and the portion in between can be an unfixed free portion.

(Absorption element)
The absorption element 50 is a part that absorbs and holds liquid such as urine and loose stool. The absorbent element 50 includes an absorbent body 56 and a covering sheet 58 that wraps at least the back and side surfaces of the absorbent body 56. The covering sheet 58 can be omitted. The absorbent element 50 can be adhered to the inner surface of the liquid-impermeable sheet 11 via an adhesive such as a hot melt adhesive on the back surface.

(Absorber)
The absorber 56 can be formed by an aggregate of the fibers 52 and 52. As this fiber assembly, a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate as well as short fibers such as cotton-like pulp and synthetic fibers Can also be used. The fiber basis weight can be set to, for example, about 100 to 300 g / m ² when cotton-like pulp or short fibers are stacked, and in the case of a filament aggregate, for example, about 30 to 120 g / m ^2. Can do. The fineness in the case of a synthetic fiber is 1-16 dtex, for example, Preferably it is 1-10 dtex, More preferably, it is 1-5 dtex. In the case of a filament aggregate, the filament may be a non-crimped fiber, but is preferably a crimped fiber. The crimped degree of the crimped fiber can be, for example, 5 to 75, preferably 10 to 50, and more preferably about 15 to 50 per inch. Further, a crimped fiber that is uniformly crimped is often used.

(Superabsorbent polymer particles)
As shown in FIG. 2, the absorbent body 56 preferably includes superabsorbent polymer particles 54, 54..., In particular, at least in the liquid receiving region, the superabsorbent polymer particles with respect to the aggregate of fibers 52, 52. It is desirable that (SAP particles) be dispersed substantially throughout the thickness direction.

  If there is no SAP particle in the upper part, the lower part, and the middle part of the absorber 56, or if there is very little, it cannot be said that the "absorbed throughout the thickness direction". Therefore, “distributed in the entire thickness direction” means “distributed unevenly in the upper part, the lower part, and / or the middle part of the aggregate of fibers in addition to the form“ uniformly ”distributed in the entire thickness direction. However, it is still included in the form of being dispersed in the upper, lower and middle portions. In addition, a form in which some SAP particles do not penetrate into the aggregates of the fibers 52, 52... Remain on the surface, and some SAP particles pass through the aggregates of the fibers 52, 52. The form on the sheet 58 is not excluded.

  The superabsorbent polymer particles 54 include “powder” in addition to “particles”. As the particle diameter of the superabsorbent polymer particles 54, those used for this type of absorbent article can be used as they are, and those having a particle size of 1000 μm or less, particularly 150 to 400 μm are desirable. The material of the superabsorbent polymer particles 54 can be used without any particular limitation, but those having a water absorption of 40 g / g or more are suitable. Examples of the superabsorbent polymer particles 54 include starch-based, cellulose-based and synthetic polymer-based polymers, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, sodium carboxymethylcellulose, and the like. A cross-linked product or an acrylic acid (salt) polymer can be used. The shape of the superabsorbent polymer particles 54 is preferably a granular material that is usually used, but other shapes can also be used.

  As the superabsorbent polymer particles 54, those having a water absorption speed of 40 seconds or less are preferably used. When the water absorption speed exceeds 40 seconds, so-called reversion in which the liquid supplied into the absorber 56 returns to the outside of the absorber 56 is likely to occur.

The basis weight of the superabsorbent polymer particles 54 can be appropriately determined according to the amount of absorption required for the use of the absorber 56. Therefore, although it cannot be said unconditionally, it can be set to 50 to 350 g / m ² . If the amount of polymer is less than 50 g / m ^2, it is difficult to secure the absorption amount. If it exceeds 350 g / m ² , not only will the effect be saturated, but an excessively high superabsorbent polymer particle 54 will give a sense of incongruity.

(Enveloping sheet)
When the covering sheet 58 is used, as the material, tissue paper, particularly crepe paper, non-woven fabric, polylaminated non-woven fabric, a sheet with small holes, or the like can be used. However, it is desirable that the superabsorbent polymer particles be a sheet that does not escape. When a nonwoven fabric is used in place of the crepe paper, a hydrophilic SMMS (spunbond / meltblown / meltblown / spunbond) nonwoven fabric is particularly suitable, and polypropylene, polyethylene / polypropylene, etc. can be used as the material. The fiber basis weight is preferably 5 to 40 g / m ² , particularly 10 to 30 g / m ² .

  As shown in FIG. 2, the covering sheet 58 wraps only the back and side surfaces of the continuous fiber 52, 52... And the superabsorbent polymer particles 54, 54. It may be covered. Although not shown, only the upper and side surfaces of the absorbent body 56 are covered with crepe paper or a nonwoven fabric, and the lower surface is covered with a liquid-impermeable sheet such as polyethylene, and the upper surface of the absorbent body 56 is covered with crepe paper or a nonwoven fabric. For example, the lower surface may be covered with a liquid-impermeable sheet such as polyethylene (each of these materials becomes a component of the covering sheet). If necessary, the aggregate of continuous fibers 52, 52... And the layer of superabsorbent polymer particles 54, 54... May be sandwiched between two upper and lower sheets or disposed only on the lower surface. This is not a desirable form because it is difficult to prevent the movement of particles.

(Fastening tape)
The fastening tape 130 has a base portion of a fastening base material 130C made of a nonwoven fabric, a plastic film, a polylaminated nonwoven fabric, paper, or a composite material thereof attached to the diaper. A hook material 130A for a mechanical fastener is provided. The hook material 130A is bonded to the fastening base material 130C by an adhesive so as not to be peeled off.

  In the infant diaper to which the present invention is particularly preferably applied, the length of the diaper in the width direction is preferably 10 to 50 mm, particularly preferably 20 to 40 mm, among the dimensions of the attachment portion of the fastening tape 130. The direction length 130L is preferably 20 to 100 mm, particularly 40 to 80 mm. Of the dimensions of the front end side portion of the fastening tape 130, the length in the width direction of the diaper is preferably 30 to 80 mm, particularly preferably 40 to 60 mm, and the length (height) in the front-rear direction is 20 to 70 mm. In particular, the thickness is preferably 25 to 50 mm. In addition, when a part or all of the fastening tape 130 has a substantially tapered shape, for example, and the length in the front-rear direction and the length in the width direction are not constant, the numerical range is determined by an average value. The shape of the fastening tape 130 may be a symmetric shape such as a rectangular shape, but if it is a convex shape consisting of a wide attachment portion and an elongated tip side portion, the knob on the tip side portion is easy to pick and This is preferable because the tension between the bases of this region acts over a wide range. The hook member 130A has a large number of engaging protrusions on the outer surface side. The shape of the engaging protrusion is (A) Le-shaped, (B) J-shaped, (C) Mushroom-shaped, (D) T-shaped, (E) Double J-shaped (J-shaped And the like may be any shape. Instead of the hook material 130 </ b> A, an adhesive material layer can be provided as a locking portion of the fastening tape 130.

  When the diaper is mounted, the fastening tape is locked to the target tape 80 in a state where the back side flap portion BF is overlapped on the outside of the ventral side flap portion FF.

  As the target tape 80, when the hook portion is the hook material 130 </ b> A, the knit loop material layer (fastening layer 82) composed of a large number of loop threads in which the hook material engagement protrusions are entangled is the outer surface of the base material layer 81. Can be suitably used, and those having a bulky nonwoven fabric layer (fastening layer 82) affixed to the outer surface of the base material layer 81 can be used. The outer surface of the layer 81 that has been subjected to a release treatment so that it can be repeatedly adhered / peeled to the adhesive material can be used. When the target tape 80 has a two-layer structure of the base material layer 81 and the fastening layer 82, a design or the like that serves as an indication of the fastening position can be applied to the base material layer 81 by printing or the like. In addition, the fastening layer 82 is preferably provided on the entire base material layer, but may be provided on only a part of the both ends in the width direction.

  When the fastening tape 130 is attached so that the attachment portion of the fastening tape 130 overlaps the boundary line between the back end flap portion BE and the absorbent element 50, the tension acting between the attachment portions of the right and left fastening tapes 130 when the diaper is attached. This is preferable because the back side end of the absorbent element 50 is firmly pressed against the body. Moreover, if the attachment part of the fastening tape 130 is too far from the back side end part (rear end part) of the diaper, the tension acting between the attachment parts of the left and right fastening tapes 130 when the diaper is mounted is the back side end part of the diaper. Therefore, a gap is likely to occur between the back end of the diaper and the body surface. Therefore, the length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the base portion of the fastening tape 130.

(End flap)
The end flap part is a part that extends to the front side and the rear side of the main body part 10 and does not have the absorber 56, the front side extension part is the ventral end flap part FE, The extended portion on the side is the back end flap portion BE.

  The length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the attachment portion of the fastening tape 130 for the reasons described above. If it is too close, a gap is likely to be formed between the diaper dorsal end and the body surface due to the thickness and stiffness of the absorbent body 56, so that the thickness is preferably 10 mm or more.

  The front-rear direction lengths of the ventral end flap part FE and the back end flap part BE are preferably about 5 to 20% of the front-rear direction length L of the entire diaper, and it is particularly preferable to apply the present invention. In diapers for infants, 10 to 60 mm, particularly 20 to 50 mm is appropriate.

(Back elastic sheet)
In the illustrated embodiment, a belt-like back-side elastic sheet 70 that elastically expands and contracts in the width direction is provided between both fastening tapes 130 to improve the fit in the back side of the diaper. Both end portions of the back-side elastic sheet 70 are preferably extended to a portion that overlaps with the attachment portions of both fastening tapes 130, but may be spaced apart in the center in the width direction. Although it is appropriate that the longitudinal dimension of the back side elastic sheet 70 is substantially the same as the longitudinal dimension of the attachment portion of the fastening tape 130, there may be a dimensional difference of about ± 20%. The back-side elastic sheet 70 may use a sheet-like elastic member such as a rubber sheet, but from the viewpoint of air permeability, as shown in FIG. 3, two nonwoven fabrics 71 are bonded with an adhesive such as a hot melt adhesive. A material in which an elastic stretch member 72 such as a perforated sheet, net, or elongated shape (thread shape or string shape) is fixed in a stretched state in the width direction is preferably used. . As the nonwoven fabric 71 in this case, the same thing as the exterior sheet 12 can be used. It is preferable that the elastic expansion / contraction member 72 has an extension ratio of about 150 to 250%. In addition, when an elongated (stretch or string-like) member is used as the elastic elastic member 72, it is preferable to provide about 5 to 15 members having a thickness of 420 to 1120 dtex at intervals 72d of 3 to 10 mm.

  Further, as shown in the drawing, it is preferable that a part of the elastic expansion / contraction member 72 is arranged so as to cross the absorber 56, because the fit of the absorber 56 is improved. In this case, the elastic expansion / contraction member 72 is used as the absorber 56. If the contraction force is prevented from acting on a part or all of the overlapping portion by means such as cutting, the back end portion of the absorbent body 56 does not contract in the width direction, so that the fit is further improved.

  The elastic elastic member 72 may be fixed over the entire length of the nonwoven fabric 71 in the longitudinal direction of the sheet (width direction of the diaper), but in order to prevent shrinkage and turning over when attached to the diaper main body, the longitudinal direction of the sheet (Diaper width direction) In the range of about 5 to 20 mm at the end, it is preferable that the contraction force does not work or the elastic elastic member 72 does not exist.

  In the illustrated embodiment, the back-side stretchable sheet 70 is sandwiched between the barrier sheet 62 and the exterior sheet 12 on both sides in the width direction of the liquid-impermeable sheet 11 and is liquid-impermeable at a portion overlapping the liquid-impermeable sheet 11. Although provided so as to be sandwiched between the permeable sheet 11 and the absorber 56, it may be provided between the top sheet 30 and the absorber 56 or between the liquid-impermeable sheet 11 and the exterior sheet 12. It may be provided on the top sheet 30. In this case, the liquid impermeable sheet 11 may be provided on the barrier sheet 62 on both sides in the width direction.

(Insulation structure)
In the present invention, the thermal resistivity of the target tape 80 is set to 2000 × 10 ⁻⁶ m ² · K / W or more. A more preferable thermal resistivity is 5000 × 10 ⁻⁶ m ² · K / W or more, and a still more preferable thermal resistivity is 12000 × 10 ⁻⁶ m ² · K / W or more.

Incidentally, a conventional target tape in which a plastic film such as a polypropylene film having a thickness of about 10 to 30 microns is used as a base material layer and a fastening layer made of a knit loop material or a non-woven fabric is attached to the outer surface, Even if the layers are combined, the thermal resistivity is about 50 to 250 × 10 ⁻⁶ m ² · K / W. In addition, the covering sheet 58, the liquid-impermeable sheet 11, and the exterior sheet 12 that are usually disposed on the outer surface side of the absorbent body 56 have a thermal resistance of 1500 × even when all of them are laminated with an adhesive or the like. not exceed ^{10 -6 m 2 · K / W} , therefore the thermal resistance does not exceed the ^{1750 × 10 -6 m 2 · K} / W even this attachment a conventional target tape.

When the thermal resistivity of the target tape 80 is 2000 × 10 ⁻⁶ m ² · K / W or more as in the present invention, the thermal resistivity of the target tape 80 is 8 times or more that of the conventional product. The thermal resistivity of the layer on the outer surface side of the absorber 56 in the range having the target tape 80 is more than twice that of the conventional product, and the thermal resistivity of the layer on the outer surface side of the absorber 56 in the range having the target tape 80 Since it has a thermal resistivity of 2.5 times or more of the range that does not have, it can exhibit remarkable heat retention in the abdomen.

  Specifically, the target tape 80 has the above-described two-layer structure, and the base layer 82 is made of a highly heat-insulating material such as an aluminum vapor-deposited film, rubber, various foamed resin foams (eg, polystyrene foam, polystyrene foam), and glass wool. It is preferable to use a product molded into a shape or a composite of these. The thickness of the base material layer 82 is preferably about 0.012 to 0.5 mm. If the base material layer 82 is too thick, the flexibility of the ventral portion F tends to be poor, and if it is too thin, it is difficult to ensure heat insulation.

  Although the dimensions and arrangement of the target tape 80 can be determined as appropriate, it is preferable to provide the target tape 80 in a wider range than that for the purpose of fastening only conventional fastening tapes. Specifically, the waist side edge of the target tape 80 is placed with the waist side edge of the ventral part F, or the waist side edge of the ventral part F and the waist side edge of the absorber 56. It is preferably located in between. Further, the crotch side edge of the target tape 80 is preferably located on the crotch side by 1/4 to 1/3 of the product length L from the waist side end edge of the abdominal side portion F. The vertical width 80L of the target tape is preferably wider than the vertical width 130L of the fastening tape 130, and more preferably 1.5 times or more.

  On the other hand, the side edge of the target tape 80 is preferably located at the same position as the side edge of the absorber 56 on each of the left and right sides, or between the side edge of the absorber 56 and the diaper side edge. Is preferable if the side edge of the target tape 80 is located on the inner side in the width direction than the side edge of the liquid-impermeable sheet 11 because the target tape 80 is sufficiently wide and does not strongly hit the skin at the side edge. On the other hand, it is preferable that the side edge of the target tape 80 is located on the outer side in the width direction than the liquid-impermeable sheet 11 because the target tape 80 can widely cover the entire abdomen including the flank.

  In the case where the target tape 80 is provided in a wide range, the leg peripheral edge 20 on the outer side in the width direction of the abdominal side flap portion FF has a linear shape along the vertical direction as shown in the figure. The crotch side leg periphery edge 21 that forms a curved shape along the leg circumference, and the crotch side edge of the target tape 80 is located on the crotch side relative to the upper end of the crotch side leg circumference edge 21, the target It is preferable that the crotch side portion of the tape 80 has a shape in which the width becomes narrower toward the crotch side as shown in the figure, because the hardness of the target tape 80 is less likely to affect the edge around the leg.

  In addition, when the elastic elastic members 64 around the legs are fixed on the left and right sides of the absorber 56 in the width direction outside in a state of extending in the front-rear direction, the target tape 80 is provided in a wide range. If the range is expanded to a position where it overlaps with the gathered portion of the elastic elastic member 64 around the legs, the target tape in that portion may be gathered and a cured portion may be formed. Therefore, in order to avoid this, it is preferable that the target tape 80 and the gathered portion of the leg elastic member 64 are not overlapped. Such a structure can be achieved by shifting the front end position of the leg elastic member 64 to the crotch side, but the crotch side edge of the target tape 80 is the gather part of the leg elastic member 64 as shown in the figure. When located on the crotch side relative to the upper end of the cuff, both sides of the crotch side portion of the target tape 80 are arranged so that the crotch side portion of the target tape 80 does not overlap the leg elastic elastic members 64 as shown in the figure. Is preferably cut. In addition, in the portion where the target tape 80 and the gathered portion simply overlap, the non-joined portion is not seen as a flutter just by not joining the target tape 80 to the exterior sheet 12, but is gathered by the gathered portion. Formation of a hardened part can be prevented.

  Moreover, although not shown in figure, the target tape 80 which has the heat insulation of this invention can also be provided in a trunk periphery including a back side part. In the manufacturing process of the diaper, if the flow direction of the manufacturing line coincides with the front-rear direction of the diaper, the target tape 80 is attached so as to cross the planned cutting line of the adjacent diaper at the time of manufacturing. The target tape 80 can be provided on the abdomen side and the back side by separating them individually, which is preferable because there is no increase in the manufacturing process.

(Heating element)
In the present invention, it is preferable to dispose the heating element 90 between the target tape 80 and the absorber 56 because the user can effectively prevent the user from getting cold due to the synergistic effect of heating and heat retention. As the heating element 90, it is preferable that iron is heated by an oxidation reaction that reacts with oxygen and water to become ferric hydroxide, because the inside of the diaper can be heated to around 40 degrees. Although not particularly limited, a water retaining material (porous particles) that retains iron powder and water can be placed in a sealed bag body that has air permeability, and a salt and activated carbon can be used as necessary (that is, it can be used). , Iron powder general-purpose disposable body warmers can be used as is).

  The dimensions of the heating element 90 may be determined as appropriate. In normal cases, the width 90W of the heating element is preferably approximately the same as the width 56W of the absorber 56, so long as it is within a range of ± 20% with respect to 56W. Good. Even when the width 90W of the heating element is wider than the width 56W of the absorber, it is desirable to make it narrower than the elastic elastic members 64 around the left and right legs. Further, the vertical length 90L of the heating element is 1/5 to 1/4 of the product length L (the length in the front-rear direction from the waist side edge on the abdominal side to the waist side edge on the back side through the crotch portion) L. It is preferable that it is about. The thickness of the heating element 90 is preferably about 1 to 5 mm. In the diaper of the present invention, when the heating element 90 is incorporated so that it cannot be taken in and out, the heating element 90 inside must be sealed and sealed so as not to come into contact with oxygen in the air. . In addition, in the case where the diaper incorporates the heating element 90 so that the heating element 90 can be taken in and out, the heating element 90 sealed and packaged so as not to come into contact with oxygen is built in the pockets 85 and 100 and used. At that time, the package of the heating element 90 may be opened.

(Built-in structure of heating element)
The heating element 90 may be built in so that it cannot be taken in and out, but it is convenient if the heating element 90 can be taken out when it is too warm or the diaper is discarded, the heating element 90 can be returned again, or a new heating element 90 can be inserted. is there. In particular, a pocket 85 having an opening at the periphery of the target tape 80 is formed between the target tape 80 and the ventral outer surface (exterior sheet 12 in the illustrated example) facing the target tape 80, and the heating element 90 is formed in the pocket 85. Since it does not increase in the number of materials and a manufacturing process, it is preferable to comprise so that it may be inserted. It is also possible to appropriately select and combine heating elements having different types, sizes, and internal capacities according to the required heat generation amount and duration.

  In the illustrated embodiment, in order to form the pocket 85 with the target tape 80, the waist side edge portion and the crotch side edge portion of the peripheral edge portion of the target tape 80 are joined to the ventral side outer surface by a hot melt adhesive or the like. These parts are not joined or only one side part is joined. In this case, the gap between the non-bonded portion of the target tape 80 and the ventral side outer surface facing this becomes a pocket 85 for containing a heating element. Moreover, although not shown in figure, among a peripheral part of the target tape 80, both side edge parts may be joined and the lower end part may be joined in a peelable manner, or only both side edge parts and the lower end part may be joined.

  When a hot melt adhesive is used as means for joining the peripheral edge of the target tape 80 to the ventral outer surface, slot coating may be performed in addition to bead coating of the adhesive. Further, instead of applying the hot melt adhesive in-line and adhering, a target tape material having an adhesive previously applied to a predetermined portion may be supplied to the line and pasted.

  In the above example, using the target tape 80, between the peripheral portion of the target tape 80 and the inner portion thereof, a predetermined portion from a part of the peripheral portion to the inner portion and the ventral outer surface facing the predetermined portion. The pocket 85 is formed on the front tape, but the pocket 85 is not formed by the target tape 80. As shown in FIGS. 6 and 7, an opening is formed at the waist edge between the ventral outer surface and the absorber 56. It is also possible to provide a heating element accommodation pocket 100 having In this case, since the heating element 90 can be accommodated at a position closer to the skin side, in addition to the advantages of the pocket 85 described above, there are also the advantages of heat insulation to the outside and improved heat transfer to the skin. The pocket 100 in the illustrated example extends from between the liquid-impermeable sheet 11 and the absorber 56 to the edge on the waist side through the liquid-impermeable sheet 11 and the top sheet 30. It can also be provided between the permeable sheet 11 and the exterior sheet 12.

  As shown in FIGS. 6 and 7, the heating element accommodation pocket 100 can be provided by sandwiching and fixing a previously formed bag body 101 between the ventral outer surface and the absorbent body 56. For example, as shown in the figure, the bag body 101 is folded in half with the middle of the opposing edge of the sheet as a fold line, the fold line portion is the crotch side, and the opposite edge is the waist side, It can be formed by sealing both side edges 102 with a hot melt adhesive or welding. Further, the bag body 101 can be formed by stacking two sheets and sealing both side edges and crotch side edges. In this case, one of the two sheets disposed on the outer surface side of the target tape 80 The same highly heat-insulating material as the base material layer 82 can be used. In these examples, since the material of the bag body 101 is dedicated, in order to avoid an increase in the number of materials, a bag body can be formed using a part of existing members (not shown). For example, the liquid-impermeable sheet 11 and the exterior sheet 12 are used, and the liquid-impermeable sheet 11 and the exterior sheet 12 are not joined at a portion that becomes a pocket from the waist side edge to the portion that overlaps the absorber 56. Moreover, the pocket which has an opening in a waist side end edge can be formed by joining the liquid-impermeable sheet 11 and the exterior sheet 12 at both side edges and crotch side edges of the non-joined portion.

  The dimensions of the pockets 85 and 100 can be determined as appropriate, but the width of the pockets 85 and 100 (the width of the inner space) is the same as or slightly wider than that of the absorber 56 and is preferably 10 mm or more wider than the width of the heating element 90. . Both side edges of the pockets 85 and 100 (both side edges of the inner space) preferably have dimensions that do not reach the side edges of the liquid-impermeable sheet 11 and the elastic elastic members 64 around the legs in the width direction. It is preferable that the liquid impervious sheet 11 is separated from the side edges and leg elastic elastic members 64 by about 10 mm. The crotch side edge of the pockets 85 and 100 may be at a position of about ± 10 mm with respect to the crotch side edge of the target tape 80, but is not limited thereto. In addition, since a commercially available disposable body warmer can be used as the heating element 90, the dimensions of the pockets 85, 100 may be adjusted in advance.

  The mouths of the pockets 85 and 100 may remain open, but it is also preferable to attach and detach the bonding means 110 such as an adhesive or a mechanical fastener (surface fastener). Further, as shown in FIGS. 6 and 7, when a knob 120 made of a nonwoven fabric or the like is attached to the inner surface of the mouth of the pocket 100 and the tip of the knob 120 is protruded from the mouth of the pocket 100 to the outside, the pocket 100 This is preferable because the opening and closing of the opening can be easily performed. In addition, the dotted pattern part in FIG.5 and FIG.6 has shown the junction part by hot-melt-adhesive etc. FIG.

(Temperature display)
Since the present invention performs heating by a heating element, if the user can confirm how much the temperature has increased or decreased, excessive heating can be prevented or replacement time It is preferable because it can be known. Therefore, the temperature display member 91 is interposed in the target tape 80 or between the target tape 80 and the heating element 90, and the temperature display of the temperature display member 91 is configured to be visible from the outer surface of the target tape 80. It is preferable. The temperature display member 91 is printed with temperature-sensitive ink whose color changes reversibly or irreversibly at a predetermined temperature (for example, 45 degrees at which low temperature burns start or 35 degrees lower than the body temperature). Sheets or films can be used. As such a temperature display member 91, a heat label manufactured by Morimatsu Sangyo Co., Ltd. can be cited as an example of a commercially available product. In order to make the temperature display visible from the outer surface, it is preferable that the outer surface side portion of the heating element 90 is made of a highly transparent material.

  The present invention is suitable for a stationary disposable diaper as in the above example, but as long as it has a target tape, it is a pants-type disposable diaper having a fastening tape for adjusting the waistline dimension, or along both sides in the longitudinal direction. A pants-type disposable diaper that has a perforation and has a fastening tape on the back side of the perforation, and separates the abdomen and both sides of the abdomen at the perforation. Is also applicable.

It is a top view in the state where the diaper was developed showing the inner surface of a fixation type disposable diaper. It is a bottom view in the state where the diaper was developed showing the outer surface of a fixed disposable diaper. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. FIG. 4 is a sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is 5-5 sectional view taken on the line in another form. It is a perspective view of a bag.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Main-body part, 11 ... Liquid impervious sheet, 12 ... Outer sheet, 20 ... Leg circumference, 30 ... Top sheet, 40 ... Intermediate sheet, 50 ... Absorbing element, 52 ... Fiber, 54 ... Super absorbent polymer particle 56 ... Absorber, 58 ... Cover sheet, 60 ... Side barrier cuff, 62 ... Barrier sheet, 70 ... Back elastic sheet, 80 ... Target tape, 90 ... Heating element, 91 ... Temperature display member, 100 ... Pocket .

Claims (8)

A liquid-permeable top sheet that forms the body-side surface, a liquid-impermeable sheet that is located on the back side of the sheet, and a sheet that is disposed between these sheets and extends from the lower abdomen through the crotch to the buttocks along the center in the width direction. In a disposable diaper with an absorbent body,
Fastening tape is provided on both sides, a target tape to which the fastening tape is fastened is provided on the outer surface of the ventral side, and the thermal resistance of the target tape is 2000 × 10 ⁻⁶ m ² · K / W or more is there,
A disposable diaper characterized by that.   The disposable diaper according to claim 1, wherein a heating element that generates heat by an oxidation reaction in which iron reacts with oxygen and water to become ferric hydroxide is disposed between the target tape and the absorber.   The disposable diaper of Claim 1 or 2 with which the pocket which has an opening part in the peripheral edge of a target tape is formed between the said target tape and the said ventral | abdominal outer surface facing this.   The disposable diaper of Claim 1 or 2 with which the pocket which has an opening in a waist edge is provided between the said ventral | abdominal outer surface and the said absorber. The waist side edge of the target tape is placed with the waist side edge of the diaper, or located between the waist side edge of the diaper and the waist side edge of the absorbent body,
When the product length is the length in the front-rear direction from the waist side edge on the ventral side to the waist side edge on the back side through the crotch part, the crotch side edge of the target tape is from the waist side edge of the diaper. It is located on the 1 / 4-1 / 3 crotch side of the product length,
The side edge of the target tape is located at the same position as the side edge of the absorber on each of the left and right sides, or between the side edge of the absorber and the diaper side edge,
The disposable diaper of any one of Claims 1-4. A ventral side flap portion extending outward in the width direction is provided on both sides in the width direction of the absorbent body on the ventral side, and the leg peripheral edges on the outer side in the width direction of the ventral side flap portion are along the vertical direction. It consists of a waist side leg circumference edge that forms a straight line and a crotch side leg circumference edge that forms a curved shape along the leg circumference,
The crotch side edge of the target tape is located on the crotch side from the upper end of the crotch side leg periphery edge,
The crotch side portion of the target tape has a shape whose width becomes narrower toward the crotch side,
The disposable diaper according to claim 5. The elastic elastic members around the legs are fixed to the left and right sides on the outer surface side of the absorbent body in a state of extending in the front-rear direction, and the gather parts are formed only in the middle part in the front-rear direction by these elastic elastic members around the legs. And
The side edges of the target tape are located at the same position as the leg elastic elastic members on the left and right sides, or between the leg elastic elastic members and the diaper side edges,
The crotch side edge of the target tape is located on the crotch side with respect to the waist side end edge of the abdomen side of the gather part, and the target tape does not have a hardened part crimped by the gather part The disposable diaper of Claim 6 comprised.   A temperature display member is interposed in the target tape or between the target tape and the absorber, and the temperature display of the temperature display member is configured to be visible from the outer surface of the target tape. The disposable diaper of any one of Claims 1-7.

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