JP4102207B2 - Disposable pants-type diapers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable pants-type diaper that can reliably prevent side leakage from the waist-side portion in a state of lying sideways over a wide range.
[0002]
[Prior art]
Conventionally, as a disposable auxiliary absorbent used in combination with a disposable diaper, there is one in which separate auxiliary absorbents are detachably fixed to the left and right side flaps of a disposable diaper with a hook-and-loop fastener respectively (for example, patents) Reference 1).
[0003]
Moreover, as a disposable auxiliary | assistant absorbent tool worn with a disposable diaper, there exists a half pants-like thing of the center vertical division (for example, refer patent document 2).
[0004]
Furthermore, as a disposable undergarment, the left and right halves of the front and back abdomen are formed on the left and right sides of the crotch where the absorbent body for crotch is arranged, respectively. In some cases, the ends are joined to each other, and slit-like leg hole portions are formed across the front and back portions of each half (see, for example, Patent Document 3).
[0005]
[Patent Document 1]
JP 2001-353180 A
[Patent Document 2]
JP 2001-340370 A
[Patent Document 3]
Japanese Patent Laid-Open No. 2002-242001
[0006]
[Problems to be solved by the invention]
However, in patent document 1, it is aimed at the disposable diaper which can be developed, and it is necessary to fix a separate auxiliary absorber in a regular position to the left and right side flaps of the front abdominal part or the back part with the disposable diaper in an expanded state. Therefore, there is a problem that it takes time and labor for the wearer and the caregiver to fix.
[0007]
Moreover, since a disposable diaper is assembled and worn with a fastening tape or the like (open / closed tape type), there is a problem of lack of comfort during wearing.
[0008]
Furthermore, since the auxiliary absorbent is simply fixed to the left and right side flaps of the front abdomen or the back using a hook-and-loop fastener, it may be detached due to the wearer's turning operation and the like, leading to leakage.
[0009]
In Patent Document 2, since it is necessary to wear a disposable diaper on top of a disposable auxiliary absorbent device that is a vertically split half-pants, it is troublesome for the wearer and caregiver to wear the work. There is.
[0010]
Moreover, since an auxiliary | assistant absorber and a disposable diaper are worn twice, there exists a problem of lacking in the comfort at the time of wear.
[0011]
Further, since the auxiliary absorbent device can cover only one of the left and right sides of the wearer, for example, when the wearer turns over so that the right side is facing down while covering the left side facing down, There is a problem that side leakage from the side portion cannot be reliably prevented over a wide area.
[0012]
In patent document 3, it is a disposable underwear formed of a cloth having elasticity and stretchability, and formed by joining the front and back ends of the front abdomen and the left and right halves of the back and back of the crotch. Garment is disclosed, but by forming a slit-shaped leg hole across the front and back of each half, the waste of fabric by forming a semi-circular leg hole However, it is not possible to reliably prevent side leakage from the waist-side portion in the state of lying down sideways.
[0013]
The present invention was made in order to solve the above problems, and there is no fixing work like a conventional auxiliary absorber, so that the wearing work does not take time, and the comfort at the time of wearing is improved. It is an object of the present invention to provide a disposable pants-type diaper that can reliably prevent lateral leakage from the waist-side portion in a sleeping state in a wide range.
[0014]
[Means for Solving the Problems]
  In order to solve the above problems,TomorrowThe crotch absorber is fixedly disposed on the crotch between the front and back, and leg holes are formed on both sides of the crotch, and the left and right hips straddling the front and back A disposable pants-type diaper characterized in that a front abdomen and a back part are joined at a part other than the side part, and a waist side absorbent body is fixedly arranged on the waist side part. is there.
[0015]
Here, fixing the crotch absorber to the crotch means that the crotch part, the front abdomen, and the back part are formed by adhering the outer sheet and the skin sheet to absorb the crotch. It also includes fixing the body between the outer surface side sheet and the skin surface side sheet, or fixing the crotch absorbent to the skin surface side sheet in an adhesively or replaceable manner.
[0016]
  Claims of the invention1The front abdomen and the back part are formed with the left half and the right half on the left and right of the crotch part where the crotch absorber is fixedly arranged, and straddle the front part and the back part of each half. Leg holes are formed, and the front ends of the left and right front abdomen are joined to the rear ends of the left and right back parts, and the left and right waist parts straddle the front part and the back part. Disposable pants-type diapers characterized in that the absorbent bodies are fixedly arranged.
[0017]
  Claims of the invention2Each of the crotch, front abdomen, and back is formed with a left half and a right half, and leg holes are formed across the front abdomen and the back of each half, respectively. The front ends of the abdomen, the rear ends of the left and right back portions, and the left and right crotch portions are joined, and a crotch absorber is fixedly disposed on each of the left and right crotch portions, and the front abdomen and the back portion The present invention provides a disposable pants-type diaper characterized in that waist-side absorbers are fixedly arranged on the left and right waist-side portions between the two.
[0018]
  Preferably, a waist elastic yarn is attached to the upper side of the front abdomen and the back portion, a body fit elastic yarn is attached to the lower side, and a leg elastic yarn is attached to the leg hole portion. (Claims3).
[0019]
  A configuration is preferable in which the contraction force of the elastic yarn for body fitting at the portion where the waistside absorbent body is fixedly arranged is set small (claims)4).
[0020]
  In the present invention, the front and rear portions of the crotch absorber are preferably formed in a substantially X shape so as to extend in the direction of the front abdomen and the back portion, respectively, along the left and right leg hole portions.5).
[0021]
  The front and rear portions of the waistside absorbent body preferably have a substantially C-shaped configuration along the left and right leg hole portions.6).
[0022]
  The crotch absorber may be formed in a rectangular shape.7).
[0023]
  The leg hole portion is formed in an elliptical punch hole in the front-rear direction, and the leg elastic yarn is attached substantially along the periphery of the leg hole portion.8).
[0024]
  The leg hole portion is formed in a slit in the front-rear direction, and the leg elastic yarn is attached to the front end of the front abdomen and the rear end of the back portion substantially along the left and right of the slit. (Claims)9).
[0025]
  The crotch part, the front abdomen, and the back part are configured by adhering an outer sheet and a skin sheet, and the waistside absorbent body is sandwiched between the outer sheet and the skin sheet. It may be a fixed configuration (claims)10).
[0026]
  The crotch part, the front abdomen, and the back part are configured by bonding an outer surface side sheet and a skin surface side sheet, and the waistside absorbent body is bonded and fixed onto the skin surface side sheet. (Claims)11).
[0027]
  A structure in which rising flaps are provided at the left and right positions of the crotch absorber is preferable.12).
  The waistside absorbent body is a sheet-like body in which an SAP (superabsorbent polymer) layer extending in the width direction at a predetermined interval in the length direction is disposed between the top sheet and the back sheet. (Claim 13).
[0028]
Operation and effect of the invention
  BookThe invention is applied to a pant shape of a type in which the front abdomen and the back part are joined at a part other than the left and right waistside parts straddling the front abdomen and the back part. For example, the front abdomen is made approximately the same width as the crotch, and both sides of the back part are widened, and both sides of the wide part are turned to the front part of the abdomen to join the front part and the back part. Joints can be eliminated on the left and right waistside parts.
[0029]
Since the waistside absorbent body is fixedly disposed on the left and right waistside parts without the joint part, the entire waistside part of the wearer can be covered with the waistside absorbent body over a wide range. In contrast, the auxiliary absorber is not detachably fixed to the left and right side flaps on the front or back of the abdomen with hook-and-loop fasteners. it can. In contrast to Patent Document 2, the waistside absorbent body can cover both the left and right sides of the wearer, so that, for example, the wearer turned over so that the right side is facing downward while covering the left side facing downward Even in this case, it is possible to reliably prevent side leakage from the waistside part over a wide range.
[0030]
Moreover, since the waist-side absorbent body is fixedly disposed as a pant-type diaper, in contrast to Patent Document 1, separate auxiliary absorbent devices are provided on the left and right side flaps of the deployed disposable diaper in the front and back. There is no need to fix each in a normal position. Compared to Patent Document 2, it is not necessary to wear a disposable diaper on top of a disposable auxiliary absorbent that is a half-pants in the middle of the center, so that it is not necessary to wear a disposable diaper on top of it, so that it can be fixed and worn for the wearer and caregiver. Work is not time-consuming.
[0031]
Furthermore, since the waist-side absorber is fixedly arranged as a pants-type diaper, it is not necessary to assemble and wear a disposable diaper with a fastening tape or the like, as compared with Patent Document 1. Compared with Patent Document 2, since it is not necessary to wear the auxiliary absorbent and the disposable diaper twice, the comfort at the time of wearing is improved.
[0032]
  Claim1This invention applies the left half and the right half of the front part and the back part to the type of pants (for example, Patent Document 3) in which the front ends and the rear ends are joined. In this type of pants shapeIsThere is no fixing work like conventional auxiliary absorbers, so it does not take time to wear, improving comfort when wearing, and wide range of side leakage from the waist side when sleeping sideways It is possible to produce an effect that can be surely prevented.
[0033]
  Claim2In the invention of, for example, in addition to the pant shape of Patent Document 3, the crotch part is also formed in the left half and the right half, the crotch parts are joined together, and the crotch absorbent is fixedly disposed on the left and right crotch parts, respectively. Is. As in the first aspect of the invention, there is no fixing work as in the conventional auxiliary absorber, and the wearing work does not take time and the comfort during wearing is improved, and the waist in the state of lying down sideways. The effect that side leakage from the side part can be reliably prevented over a wide range can be achieved.
[0034]
In addition, since there is no absorber for the crotch at the center of the crotch, which is the folded part between the left and right halves of the front and back, the crotch does not become stiff even when folded, so comfort when worn Is improved and the appearance is also improved.
[0035]
  Claim3If the waist elastic yarn, the body fit elastic yarn and the leg elastic yarn are attached like the above, the entire disposable pants-type diaper fits the wearer's body so that the comfort at the time of wearing is further improved Become.
[0036]
  Claim4If the contraction force of the body-fit elastic yarn at the site where the waist-side absorber is placed is set to a small value, the waist-side absorber can be prevented from twisting due to the shrinkage of the body-fit elastic yarn. The adhesion of the lumbar side absorber to the lumbar side is improved, and side leakage from the lumbar part can be prevented more reliably.
[0037]
  Claim5If the front and back parts of the crotch absorber are extended in the direction of the front abdomen and the back part and formed into a substantially X shape along the left and right leg hole parts, side leakage from around the leg hole parts is prevented. It becomes possible to prevent more reliably.
[0038]
  Claim6When the front and rear portions of the waistside absorbent body are formed in a substantially C shape so as to extend along the left and right leg hole portions, the crotch absorbent body is formed in a substantially X shape along the left and right leg hole portions ( Claim5), The waist-side absorber and crotch absorber surround the entire circumference of the leg hole so that side leakage from the leg hole can be prevented more reliably. become.
[0039]
  Claim7Thus, if the crotch absorbent is formed in a rectangular shape, the shape becomes simple and the cost is reduced.
[0040]
  Claim8If the leg hole is formed in an elliptical hole in the front-rear direction and the leg elastic thread is attached along the circumference of the leg hole, the leg hole is large, so the leg of the wearer can be put in and out. As a result, the side elastic leakage from the leg hole portion can be more reliably prevented by the contraction force of the leg elastic yarn.
[0041]
  Claim9When the leg hole portion is formed in a slit in the front-rear direction, and the leg elastic yarn is attached to the front end of the front abdomen and the rear end of the back portion substantially along the left and right of the slit, the leg hole portion No hollowing out is required and the cost is reduced, and the side leakage from around the leg hole can be more reliably prevented by the contraction force of the leg elastic yarn. In addition, the leg elastic yarn comes to be located in a portion between the lower side of the body-fit elastic yarn in the front and back parts and the front and rear ends of the crotch absorber. Leakage from the front and rear ends of the crotch absorbent can be more reliably prevented by the contraction force of the elastic yarn. Further, since the leg elastic yarn is continuously attached over the front end of the front abdomen and the rear end of the back portion, the leg elastic yarn can be attached easily.
[0042]
  Claim10In this way, the outer side sheet and the skin side sheet are bonded to form the crotch part, the front abdomen part, and the rear part, and the waist side absorbent body is sandwiched between the outer side sheet and the skin side sheet. When it is fixed, the waist-side absorbent body can be fixed at a normal position in the manufacturing stage.
[0043]
  Claim11When the outer side sheet and the skin side sheet are bonded to form the crotch part, the front abdomen, and the rear part, and the waist side absorbent body is bonded and fixed on the skin side sheet, The absorbent body can be fixed at a regular position in the manufacturing stage, and can be retrofitted as necessary. It is also possible to fix it so as to be replaceable.
[0044]
  Claim12As described above, when the rising flaps are provided at the left and right positions of the crotch absorbent, side leakage from the crotch absorbent can be more reliably prevented.
[0045]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0046]
1 and 2 are a disposable pants-type diaper 1A according to the first embodiment, FIG. 1 is a plan view in an unfolded state, and FIG. 2 is a perspective view in an assembled state.
[0047]
Referring to the exploded perspective view of FIG. 18, the cross-sectional view of FIG. 19 (a), and the cross-sectional view of FIG. 20 (a), the disposable pants-type diaper 1 </ b> A includes an outer surface side sheet 2 and a skin surface side sheet 3. Sheets 2 and 3 are bonded and fixed by hot-melt adhesive, thermal bonding, ultrasonic bonding or the like in a two-ply manner to constitute a pants-type diaper body 4.
[0048]
The outer surface side sheet 2 is preferably a water-repellent or liquid-impervious sheet material in order to prevent excrement absorbed by the crotch absorbent 10 and the waistside absorbent 11 described later from seeping out. More preferably, water-repellent nonwoven materials (spunbond nonwoven fabrics, melt blown nonwoven fabrics, SMS nonwoven fabrics, etc.), breathable or non-breathable plastic films, composite materials thereof, and the like that are usually used for disposable diapers are preferably used.
[0049]
The skin surface side sheet 3 is preferably a liquid-permeable sheet material because it is necessary to quickly capture excrement from the wearer and transfer it to the crotch absorbent 10 or the waistside absorbent 11. More preferably, the surface of a non-woven material using hydrophilic fibers (cellulose, rayon, cotton, etc.) usually used for disposable diapers, or hydrophobic fibers (polypropylene, polyethylene, polyamide, nylon, etc.) is treated with a surfactant. A liquid-permeable nonwoven material or a plastic film having apertures is preferably used.
[0050]
In the unfolded state of FIGS. 1 and 18, the pant-type diaper body 4 is formed with a crotch portion R at the central portion in the length direction B, and on the left and right sides of the crotch portion R Are integrally formed of a left half and a right half. In addition, leg holes S, which are elliptical punched holes in the width direction A (the front-rear direction when worn), are formed across the front half P and the back Q, respectively.
[0051]
Then, the front ends 4a of the left and right front abdominal portions P and the rear ends 4b of the left and right rear back portions Q are bent outwardly (see FIG. 21A), and joined by heat sealing or the like, so that FIG. As a result, the waist opening T is formed at the upper end portions of the front part P and the back part Q.
[0052]
Thus, by joining the front ends 4a of the left and right front abdomen P and the rear ends 4b of the back part Q, there is no joint part in the left and right waistside parts U straddling the front part P and the back part Q. can do.
[0053]
Between the outer surface side sheet 2 and the skin surface side sheet 3, a plurality of waist elastic yarns 6 are attached to the upper side of the front abdominal part P and the back part Q in the width direction A, and A plurality of body-fit elastic yarns 7 are attached to the lower side in a stretched state in the width direction A. In addition, a plurality of leg elastic yarns 8 are attached along the circumference of the leg hole portion S formed in the oval-shaped hole in a stretched state in the circumferential direction. As described above, when the waist elastic yarn 6, the body fit elastic yarn 7 and the leg elastic yarn 8 are attached, the entire disposable pant-type diaper 1A fits the wearer's body, and the comfort at the time of wearing is further improved. To improve. It is preferable to use polyurethane, polyurethane film, natural rubber or the like for the elastic yarns 6 to 8 and the flap elastic yarn 9 described later.
[0054]
In the crotch portion R between the outer surface side sheet 2 and the skin surface side sheet 3, a crotch absorbent 10 is fixedly disposed. The crotch absorbent 10 is located at the center of the crotch R, and the front part 10a and the rear part 10b are extended in the direction of the front abdomen P and the back part Q, respectively. It is formed in a substantially X shape so as to follow the left and right leg hole portions S at the outer position where it does not become.
[0055]
Lumbar-side absorbers 11 are fixedly arranged on the left and right waist-side portions straddling the front abdominal part P and the back part Q between the outer surface side sheet 2 and the skin surface side sheet 3. The waistside absorbent body 11 is formed in a rectangular shape that is long in the width direction A, and overlaps the elastic thread 7 for body fitting. The waistside absorbent body 11 is located in the left and right waistside portions of the wearer, and even when the wearer lies sideways in either the left or right direction, one waistside absorbent body 11 is the wearer. It will be located below.
[0056]
The crotch absorbent 10 and the lumbar absorbent 11 have an absorbent core in which a granular polymer absorbent is mixed with a hydrophilic fiber aggregate layer such as pulverized pulp fiber or cellulose fiber, or a paper sheet such as tissue paper or a transparent sheet. Wrapped in a liquid nonwoven sheet and molded into a predetermined shape. In addition, even if the wearer walks or rolls over, the shape of the hydrophilic fiber aggregate or sheet can be maintained by applying shape retention means (hot melt adhesive application or synthetic fiber mixing). good. Furthermore, you may shape | mold the sheet-like absorber (airlaid nonwoven fabric, a polymer sheet, etc.) which shape | molded the said fiber and polymer absorber in the sheet form in the predetermined shape.
[0057]
As shown in FIG. 19A, rising flaps 12 are provided at the left and right positions of the crotch absorber 10, respectively. The rising flap 12 has a base end portion 12a bonded to the skin surface side sheet 3 with a hot melt adhesive or the like, an upper end portion 12b is bent inward, and a lower end thereof is joined to the rising flap 12 so as to be sealed up. A portion 12c is formed [see FIG. 21 (b)], and a plurality of flap elastic yarns 9 are attached in the rising sealing portion 12c in a stretched state in the width direction A. The rising flap 12 is preferably made of the same sheet material as the outer surface side sheet 2.
[0058]
Providing such a rising flap 12 can more reliably prevent side leakage from the crotch absorbent 10.
[0059]
FIG. 19 (a) shows the crotch absorbent body 10 sandwiched and fixed between the outer surface side sheet 2 and the skin surface side sheet 3. By doing so, the crotch absorbent body 10 is manufactured. Can be fixed at the normal position.
[0060]
Moreover, as shown in FIG.19 (b), it is also possible to adhere and fix to the skin surface side sheet | seat 3 by making the absorber 10 for crotches into another body. In this case, the absorbent core 10e is sandwiched and fixed between the liquid-permeable top sheet 10c and the liquid-impermeable back sheet 10d, and the rising flaps 12 are integrally formed on both sides of the crotch absorbent body 10. Should be provided. In this way, the crotch absorber 10 can be retrofitted as necessary, or can be fixed in a replaceable manner.
[0061]
FIG. 20 (a) shows the lumbar side absorbent body 11 sandwiched and fixed between the outer surface side sheet 2 and the skin surface side sheet 3. In this way, the crotch absorbent body 10 is manufactured. It can be fixed at a normal position in stages.
[0062]
Moreover, as shown in FIG.20 (b), it is also possible to adhere | attach and fix to the skin surface side sheet | seat 3 by making the absorber 11 for waist | flank sides into another body. In this case, the absorbent core 11e is sandwiched and fixed between the liquid-permeable top sheet 11c and the liquid-impermeable back sheet 11d. In this way, the waist-side absorber 11 can be retrofitted as necessary, or can be fixed in a replaceable manner.
[0063]
The disposable pants-type diaper 1A of the first embodiment has a pants shape of a type in which the left half and the right half of the front abdomen P and the back part Q are joined to the front ends 4a and the rear ends 4b.
[0064]
Since the waistside absorbent body 11 is fixedly disposed on the left and right waistside parts U without the joint part, the entire waistside part of the wearer can be covered with the waistside absorbent body 11 in a wide range. Since the side absorbent body 11 cannot be removed by turning over or the like, side leakage from the waistside portion U can be reliably prevented over a wide range. Further, since the waistside absorbent body 11 can cover both the left and right sides of the wearer, for example, even when the wearer turns over so that the right side faces downward while covering the left side facing downward, Lateral leakage from the side portion U can be reliably prevented over a wide range.
[0065]
Moreover, since the waist-side absorber 11 is fixedly arranged as a pants-type diaper, the wearer and the caregiver do not need time and effort for fixing and wearing, and comfort at the time of wearing is improved.
[0066]
Further, the leg hole portion S is formed into an oval-shaped hole, and the leg elastic yarn 8 is adhered substantially along the periphery of the leg hole portion S. Therefore, the leg hole is large, so that the wearer's leg can be smoothly inserted and removed. At the same time, the contracting force of the leg elastic yarn 8 can more reliably prevent side leakage from around the leg hole.
[0067]
Furthermore, since the front and rear parts of the crotch absorbent 10 are extended in the direction of the front abdomen P and the back part Q, and are formed in a substantially X shape along the left and right leg holes S, the leg holes S around It is possible to more reliably prevent side leakage from the side.
[0068]
3 and 4 show a disposable pants-type diaper 1B according to the second embodiment, FIG. 3 is a plan view in an unfolded state, and FIG. 4 is a perspective view in an assembled state.
[0069]
The configuration different from the disposable pants-type diaper 1 </ b> A of the first embodiment is that the contraction force of the body-fit elastic yarn 7 of the waist-side portion U where the waist-side absorber 11 is fixedly arranged is set small. As a method for setting the shrinkage force small, for example, there are a method of melting the body-fit elastic yarn 7 using heat embossing and a method of cutting the body-fit elastic yarn 7 using a gather cutter.
[0070]
If comprised in this way, since the twist of the waist side absorber 11 accompanying the shrinkage | contraction of the body fit elastic yarn 7 can be prevented, the adhesiveness of the waist side absorber 11 with respect to a wearer's waist side improves, Lateral leakage from the waistside portion U can be prevented more reliably.
[0071]
5 and 6 show a disposable pants-type diaper 1C according to the third embodiment. FIG. 5 is a plan view in an unfolded state, and FIG. 6 is a perspective view in an assembled state.
[0072]
The configuration different from the disposable pants-type diaper 1 </ b> A of the first embodiment is that the front part 11 a and the rear part 11 b of the waist-side absorbent body 11 are formed in a substantially C shape along the left and right leg hole parts S.
[0073]
If comprised in this way, combined with having formed front and back parts 10a and 10b of crotch absorber 10 in the shape of an abbreviated X so that right-and-left leg hole part S may be met, waist side absorber 11 and crotch Since the absorbent body 10 surrounds substantially the entire circumference around the leg hole portion S, side leakage from around the leg hole portion S can be more reliably prevented.
[0074]
7 and 8 show a disposable pants-type diaper 1D according to the fourth embodiment. FIG. 7 is a plan view in an unfolded state, and FIG. 8 is a perspective view in an assembled state.
[0075]
The configuration different from the disposable pants-type diaper 1A of the first embodiment is that the crotch absorbent 10 'is formed in a rectangular shape.
[0076]
If comprised in this way, it will become a simple shape and will become low-cost.
[0077]
FIGS. 9 and 10 show a disposable pants-type diaper 1E according to the fifth embodiment, FIG. 9 is a plan view in an unfolded state, and FIG. 10 is a perspective view in an assembled state.
[0078]
The configuration different from the disposable pants-type diaper 1A of the first embodiment is that the leg hole S is formed in a slit in the front-rear direction, and the front end 14a of the front abdomen P is substantially along the left and right of the slit-shaped leg hole S '. The leg elastic yarn 8 is provided over the rear end 14b of the back portion Q.
[0079]
With this configuration, it is not necessary to cut out the leg hole portion S ′ and the cost is reduced, and the lateral leakage from around the leg hole portion S ′ can be more reliably prevented by the contraction force of the leg elastic yarn 8. Become. Further, the leg elastic yarn 8 is also positioned at a portion between the lower side of the body fitting elastic yarn 7 of the front abdomen P and the back portion Q and the front and rear portions 10a and 10b of the crotch absorbent 10. Therefore, leakage from the front and rear portions 10a and 10b of the crotch absorber 10 can be more reliably prevented by the contraction force of the leg elastic yarn 8 in this portion. Further, since the leg elastic yarn 8 is continuously attached over the front end 4a of the front abdomen P and the rear end 4b of the back portion Q, the step of attaching the leg elastic yarn 8 is facilitated.
[0080]
11 and 12 show a disposable pants-type diaper 1F according to the sixth embodiment. FIG. 11 is a plan view in an unfolded state, and FIG. 12 is a perspective view in an assembled state.
[0081]
The configuration different from the disposable pants-type diaper 1A of the first embodiment is that the crotch portion R, the front abdomen portion P, and the back portion Q are formed by the left half and the right half, and the front abdomen P and the rear of each half. Leg holes S are formed across the back portion Q, and the front ends 4a of the left and right front abdominal portions P, the rear ends 4b of the left and right back portions Q, and the side ends 4c of the left and right crotch portions R are joined. In addition, the crotch absorbers 10A and 10B are fixedly disposed on the left and right crotch portions S, respectively.
[0082]
If comprised in this way, since the crotch absorber 10 (A, B) does not exist in the center part C of the crotch part used as the folding | returning part of the left half and the right half of the front part P and the back part Q, even if it turns up Since the crotch portion R does not become stiff, the comfort during wearing is further improved and the appearance is also improved.
[0083]
The disposable pants-type diapers 1A to 1F of the first to sixth embodiments are of the type of pants that joins the front half 4 and the left half of the back part Q to the front end 4a and the rear end 4b. However, the present invention can also be applied to a type of pants that joins the front abdominal part P and the back part Q at a part other than the left and right waistside parts U straddling the front part P and the back part Q.
[0084]
13 and 14 show a disposable pants-type diaper 1G according to the seventh embodiment, FIG. 13 is a plan view in an unfolded state, and FIG. 14 is a perspective view in an assembled state.
[0085]
In the disposable pants-type diaper 1G of the seventh embodiment, the front abdomen P is substantially the same width as the crotch R, both sides of the back part Q are widened, and both wide side parts 4d are turned to the front abdomen P side. In addition, by joining the side edge 4e of the both sides 4d and the side edge 4f of the front abdomen P, it is possible to eliminate the joining part in the left and right waistside parts U straddling the front abdomen P and the back part Q. .
[0086]
15 and 16 show a disposable pants-type diaper 1H according to the eighth embodiment. FIG. 15 is a plan view in an unfolded state, and FIG. 16 is a perspective view in an assembled state.
[0087]
A configuration different from the disposable pants-type diaper 1 </ b> A of the first embodiment is that the waist-side absorbent body 11 ′ has a thin sheet shape.
[0088]
That is, as shown in FIGS. 17 (a) and 17 (b), an SAP (high absorbency) extending in the width direction A with a predetermined interval in the length direction B between the top sheet 14a and the back sheet 14b. (Polymer) layer 14c is disposed.
[0089]
The liquid permeable top sheet 14a and the liquid permeable back sheet 14b apply the adhesive 14d only to the region where the SAP layer 14c exists, and the portions between the outer peripheral portion and the SAP layer 14c are sealed to each other. The portion 14e is formed so that the SAP layer 14c does not lose its shape when it absorbs water and swells.
[0090]
Similarly to the case shown in FIG. 20A, the lumbar-side absorbent body 11 ′ may be clamped and fixed between the outer surface side sheet 2 and the skin surface side sheet 3, but as shown in FIG. As shown, a waist-side absorbent body 11 ′ as an absorbent core is sandwiched and fixed between a liquid-permeable top sheet 14 f and a liquid-impervious back sheet 14 g and adhered to the skin surface side sheet 3. It is also possible to fix. In this case, the waist-side absorber 11 ′ can be retrofitted as necessary, or can be fixed so as to be replaceable.
[0091]
The individual characteristic configurations of the disposable pants-type diapers 1 </ b> A to 1 </ b> H of the above embodiments are not specific configurations for each embodiment, and it is a matter of course that the individual characteristic configurations can be used in appropriate combinations.
[Brief description of the drawings]
FIG. 1 is a plan view of a deployed state of a disposable pants-type diaper according to a first embodiment.
2 is a perspective view of the assembled state of FIG. 1. FIG.
FIG. 3 is a plan view of a disposable pants-type diaper according to a second embodiment in an unfolded state.
4 is a perspective view of the assembled state of FIG. 3. FIG.
FIG. 5 is a plan view showing a developed state of the disposable pants-type diaper of the third embodiment.
6 is a perspective view of the assembled state of FIG. 5. FIG.
FIG. 7 is a plan view of a deployed state of the disposable pants-type diaper of the fourth embodiment.
8 is a perspective view of the assembled state of FIG. 7. FIG.
FIG. 9 is a plan view of a deployed state of the disposable pants-type diaper of the fifth embodiment.
10 is a perspective view of the assembled state of FIG. 9. FIG.
FIG. 11 is a plan view of a deployed state of the disposable pants-type diaper of the sixth embodiment.
12 is a perspective view of the assembled state of FIG. 11. FIG.
FIG. 13 is a plan view of a deployed state of the disposable pants-type diaper of the seventh embodiment.
14 is a perspective view of the assembled state of FIG. 13;
FIG. 15 is a plan view of a deployed state of the disposable pants-type diaper of the eighth embodiment.
16 is a perspective view of the assembled state of FIG. 15. FIG.
17 is a waist-side absorbent body used in the eighth embodiment, (a) is a perspective view of the main part, (b) is a sectional view of (a), and (c) is a ZZ section of FIG. FIG.
FIG. 18 is an exploded perspective view of the disposable pants-type diaper of the first embodiment.
19A is a cross-sectional view taken along the line XX of FIG. 1, and FIG. 19B is a cross-sectional view taken along the line XX of FIG.
20A is a cross-sectional view taken along the line YY of FIG. 1, and FIG. 20B is a cross-sectional view taken along the line YY of FIG.
FIG. 21A is a plan view of the main part of the front and rear ends of the front and back parts, and FIG. 21B is a side view of the main part of the rising flap.
[Explanation of symbols]
1A-1H Disposable pants-type diapers
2 Outside sheet
3 Skin side sheet
4 Pants-type diaper body
4a front end
4b rear end
4c side edge
6 Elastic yarn for waist
7 Elastic thread for body fit
8 Leg elastic yarn
9 Elastic yarn for flap
10,10 'Crotch Absorber
11,11 'Absorbent for waist side
12 Standing flap
P front abdomen
Q back
R crotch
S, S 'leg hole
U waistside part

Claims (13)

  On the left and right of the crotch where the absorbent body for crotch is fixed, the front and back are formed with the left and right halves, and the leg holes straddle the front and back of each half. Each part is formed, and the front ends of the left and right front abdomen are joined together with the rear ends of the left and right back parts, and the left and right waist side parts straddling the front part and the back part are absorbed by the waist side Disposable pants-type diapers characterized in that their bodies are fixedly arranged.   Each of the crotch, front abdomen, and back is formed with a left half and a right half, and leg holes are formed across the front abdomen and back of each half. The front ends, the rear ends of the left and right back portions, and the left and right crotch portions are joined to each other, and a crotch absorber is fixedly disposed on each of the left and right crotch portions, and between the front and rear portions Disposable pants-type diaper characterized in that waist-side absorbers are fixedly arranged on the left and right waist-side parts of each. The waist elastic yarn is attached to the upper side of the front abdomen and the back portion, the body fitting elastic yarn is attached to the lower side thereof, and the leg elastic yarn is attached to the leg hole portion. Or the disposable underpants type diaper of 2. The disposable pants-type diaper according to claim 3, wherein the contraction force of the elastic yarn for body fitting at a portion where the waistside absorbent body is fixedly arranged is set small. Front and rear portion of the crotch absorbent body before being extended respectively toward the abdomen and back portion, any one of claims 1 to 4 which is formed in a substantially X shape as along the leg hole portions of the left and right Disposable pants-type diapers as described in 1. The disposable pants-type diaper according to any one of claims 1 to 5 , wherein the front and rear portions of the waistside absorbent body are formed in a substantially C shape so as to follow the left and right leg hole portions. The disposable pant diaper according to any one of claims 1 to 4 , wherein the crotch absorbent is formed in a rectangular shape. The leg hole portion is formed in the longitudinal direction of the elliptical shape vent holes, according to any one of claims 1 to 7, the elastic yarn for the legs is additionally provided substantially along the periphery of the leg hole portion Disposable pants-type diapers. The leg hole portion is formed in a slit in the front-rear direction, and the leg elastic yarn is attached to the front end of the front abdomen and the rear end of the back portion substantially along the left and right of the slit. The disposable pants-type diaper according to any one of to 8 . The crotch part, the front abdomen, and the back part are configured by adhering an outer sheet and a skin sheet, and the waistside absorbent body is sandwiched between the outer sheet and the skin sheet. The disposable pants-type diaper according to any one of claims 1 to 9 , which is fixed. The crotch portion, the front abdominal portion, and the back portion are configured by bonding an outer surface side sheet and a skin surface side sheet, and the waistside absorbent body is bonded and fixed onto the skin surface side sheet. disposable pants-type diaper according to any one of 1-9. The disposable pants-type diaper according to any one of claims 1 to 11 , wherein rising flaps are provided at left and right positions of the crotch absorbent. The waistside absorbent body is a sheet-like body in which an SAP (superabsorbent polymer) layer extending in the width direction at a predetermined interval in the length direction is disposed between the top sheet and the back sheet. The disposable pants-type diaper according to any one of claims 1 to 12.

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