TWI701021B - Disposable wearing items - Google Patents

Abstract

Provide a wearing article that does not cause skin problems.

The disposable diaper (10) of disposable wearing articles has a longitudinal direction (Y) and a lateral direction (X), as well as a skin contact surface and a non-skin contact surface on the opposite side, and includes: the front waist area (13), the back waist area (14), the crotch area (15) between the front and back waist areas (13) and (14), and extend from the crotch area (15) to the front and back waist areas (13), (14) The liquid-absorbent structure (absorbent base) (12). The waist region of at least one of the front and rear waist regions (13) and (14) has: a pair of first side elastic regions (first stretchable regions) (29B), which are located from both side edges and one side of the absorbent base (12) Between the two side edges of the waist region; and waist elastic body (27), tied to the first side elastic region, extending in the horizontal direction (X). At least one waist elastic body (27), in the horizontal direction (X), has: a low stretch part (51) with a cut part (cut part) (104a), and a high stretch part without a cut part (52).

Description

Disposable wearing items

The present invention relates to disposable wearing articles.

In the past, it has been known that there is a disposable wearing article (paper diaper), which has a longitudinal direction and a lateral direction, a skin contact surface and a non-skin contact surface on the opposite side, and includes the front waist area and the back waist. A region, a crotch region located between the front and rear waist regions, and a liquid absorbent structure extending from the crotch region to the front and rear waist regions. For example, the front and rear waist regions of the paper diaper disclosed in Patent Document 1 are divided into a first stretchable region, a second stretchable region, and a third stretchable region. The first stretchable region extends in the waist circumference direction along the waist opening edge. 2 The expansion and contraction zone is adjacent to the first expansion and contraction zone and extends in the waist circumference direction, and the third expansion and contraction zone is adjacent to the second expansion and contraction zone and extends in the waist circumference direction. The relationship between the expansion and contraction forces of these expansion and contraction zones is disclosed as: 3Expansion area≧2nd expansion area>1st expansion area.

In this diaper, the first stretch force on the upper end of the waist opening edge side in the longitudinal direction is small, so the waist opening can be easily expanded. On the other hand, the third stretch force on the leg opening edge side becomes larger. ,because This enables the diaper to fit the wearer's body at the edge of the leg opening.

[Prior technical literature] 〔Patent Literature〕

[Patent Document 1] Japanese Patent No. 4352003 (P4352003B)

However, there are also newborns or people with sensitive skin among paper diaper wearers, so there is a fear of skin problems such as reddening of the skin in the area where the waist elastic body contacts. Therefore, a paper diaper having a low shrinkage portion and a high shrinkage portion in the lateral direction is desired.

Therefore, the object of the present invention is to provide a wearing article, which is based on the improvement of the prior art and does not have skin problems.

In order to achieve the above-mentioned problems, the present invention relates to a disposable wearing article, which has a longitudinal direction and a lateral direction, a skin contact surface and a non-skin contact surface on the opposite side thereof, and includes a front waist area, a back A waist region, a crotch region located between the front and rear waist regions, and a liquid absorbent structure extending from the crotch region to the front and rear waist regions.

The disposable wearing article of the present invention is characterized in that at least one of the waist regions of the front and rear waist regions has: a pair of first side elastic regions located between the side edges of the liquid absorbing structure and Between the side edges of the one waist region; and waist elastic body, which is tied to the first side elastic region and extends in the lateral direction; at least one waist elastic body, has in the lateral direction: has cut The low-elasticity part of the part, and the high-elasticity part without the cut part.

The high-stretch portion of the waist elastic body is a portion with a large cross-sectional area, and the low-stretch portion of the waist elastic body is a portion whose cross-sectional area is smaller than that of the high-stretch portion. Therefore, as long as the waist elastic system removes a large area by cutting, it can pressurize the difference between the contraction force of the low-stretch part and the contraction force of the high-stretch part.

The front and rear waist regions have a plurality of the waist elastic bodies in the longitudinal direction, and the waist elastic bodies located on the lower side of the longitudinal direction than the liquid-absorbent structure have the low-stretch portion, and on the other hand, are located more than the absorbent structure. In the liquid structure, the waist elastic body on the upper side in the longitudinal direction does not have the low-stretch portion. Therefore, on the lower side in the longitudinal direction than the liquid-absorbent structure, it is possible to prevent the waist elastic body from coming into contact with the wearer's feet strongly, while making the wearing article fit the wearer's waist. It is closer to the upper side in the longitudinal direction than the liquid absorbing structure, and it is possible to prevent the wearing article from deviating downward and falling.

The liquid-absorbent structure has a core material and side flaps located on the outer side of the core material in the lateral direction, the waist region of the one has a second side elastic region, and the first side elastic region and both side edges of the core material When viewed in plan, the second side elastic region overlaps the side flap, and the contraction force of the portion of the waist elastic body located in the second side elastic region is greater than the contraction force of the low-stretch portion. Therefore, the first The two-side elastic area is crimped on the wearer's body, which can restrain the gap between the body and the waist area and prevent the leakage of excrement.

Inside the pair of second side elastic regions, an inelastic region where the waist elastic body does not exist is arranged. When viewed in plan, the core material and the inelastic region overlap. Therefore, deformation of the core material can be suppressed, and reduction of the absorption area can be prevented.

The low-stretch portion of the waist elastic body has a cut portion extending in the lateral direction between the side edges of the waist elastic body in the longitudinal direction. Therefore, since the cut portion is not located on the both side edges of the front and back waist elastic body, it is possible to prevent the sheet from jamming at the end of the cut portion.

The wearing article has a waist opening and a pair of leg openings, the front and rear waist regions have a plurality of the waist elastic bodies in the longitudinal direction; the position of the cut portion of the waist elastic body on the side of the leg openings, And regarding the waist elastic body, the positions of the cut portions of the waist elastic body adjacent to the waist opening side are different in the lateral direction. Therefore, it is possible to prevent the contraction force of the waist elastic body from locally increasing, and while preventing a part of the waist elastic body from strongly touching the wearer's feet, it is possible to fit the wearing article to the wearer's feet.

According to the disposable wearing article of the present invention, at least one waist elastic body has in the horizontal direction: low stretch with cut parts Parts, and high-stretch parts that do not have cut parts. Therefore, since the waist elastic body has a low-stretch portion, it is possible to make the wearing article fit the wearer's body with the high-stretch portion while preventing the waist elastic body from strongly touching the wearer's body. This can prevent skin problems such as skin redness.

10‧‧‧Disposable wearing articles (disposable diapers)

12‧‧‧Absorbent substrate (liquid absorbent structure)

12C‧‧‧Both sides of the absorption base

13‧‧‧Front waist area

14‧‧‧Back waist area

15‧‧‧Crotch area

16c‧‧‧Both sides of the front waist area

17c‧‧‧Both sides of the back waist area

19‧‧‧ Waist opening

20‧‧‧Leg opening

27‧‧‧Waist elastic body

27A‧‧‧Upper waist elastic body

27B‧‧‧Lower waist elastic body

29‧‧‧Both sides

29B‧‧‧First side elastic area

29C‧‧‧Second side elastic area

36‧‧‧Inelastic area

43‧‧‧Liquid absorbent core (core material)

43C‧‧‧Both sides of the liquid-absorbing core

48‧‧‧Side Wings

51‧‧‧Low expansion part

52‧‧‧High telescopic part

X‧‧‧Horizontal

Y‧‧‧Vertical direction

The drawings show specific embodiments of the present invention related to the present disclosure, and are not only indispensable components of the invention, but also include alternative and preferred embodiments.

Fig. 1 is a front perspective view of a disposable wearing article (paper diaper) according to the first embodiment of the present invention.

Fig. 2 is a partially cut and expanded view of the paper diaper when each elastic body is extended in the longitudinal direction and the lateral direction of the paper diaper.

Figure 3 is a partial enlarged view of the back waist area.

Fig. 4 is an enlarged view of a part of Fig. 3.

Fig. 5 is an enlarged view of a part of the paper diaper of the second embodiment, which is the same as Fig. 4.

Fig. 6 is an enlarged view of a part of the paper diaper of the third embodiment, which is the same as Fig. 4.

The following embodiments relate to disposable wearing articles (diapers) shown in Figures 1 to 6, and are not only an indispensable structure of the invention It also includes alternative and preferred embodiments.

<First Embodiment>

1 and 2, the paper diaper 10 has a longitudinal direction Y and a transverse direction X intersecting (orthogonal) to it, and includes: a skin-facing surface, a non-skin-facing surface facing the same, and a ring extending in the waist direction Shaped elastic waist sheet 11, absorbent base (liquid absorbent structure) 12 mounted on the skin-facing side of the elastic waist sheet 11, front waist region 13, rear waist region 14, and crotch between the front and rear waist regions 13, 14 Area 15.

The elastic waist panel 11 includes a front waist panel 16 having an elastic band function and forming a front waist region 13 and a rear waist panel 17 forming a rear waist region 14. The front and rear waist pieces 16, 17 have inner end edges 16a, 17a, outer end edges 16b, 17b, and a rectangular shape defined by both side edges 16c, 17c. The side edges 16c of the front waist panel 16 and the side edges 17c of the back waist panel 17 facing each other are superimposed on each other, and the side seams 18 arranged at intervals in the longitudinal direction Y form a waist opening 19 and a pair of legs The openings 20 are connected by well-known means, such as various thermal welding means such as hot embossing and ultrasonic.

The front and rear waist sheets 16 and 17 respectively include an inner sheet 21 located on the skin-facing surface side and an outer sheet 23 located on the non-skin-facing surface side. The inner and outer sheets 21 and 23 can use SMS (spunbonded, meltblown, spunbonded) non-woven fabrics, spunbonded non-woven fabrics or hot-air fiber non-woven fabrics, or plastic sheets, perforated plastic sheets and the like with a mass of 15~30g/m ² The laminated sheet and so on.

Between the inner and outer sheets 21, 23 of the front and rear waist panels 16, 17, a plurality of waist elastic bodies 27 in the shape of lines, strands, or ribbons are respectively arranged, and the waist elastic bodies 27 can be oriented in the horizontal direction. X stretches, and the front and back waist panels 16 and 17 are elastic at least in the horizontal direction X. The waist elastic body 27 has an upper waist elastic body 27A extending in the lateral direction X along the waist opening 19 and a lower waist elastic body 27B. The lower waist elastic body 27B is in the upper waist elastic body 27A and The end edges 16a and 17a extend in the lateral direction X. An upper stretchable area 28A is formed in the area where the upper waist elastic body 27A is arranged, and a lower stretchable area 28B is formed in the area where the lower waist elastic body 27B is arranged. The upper waist elastic body 27A is continuous in the lateral direction X between the side edges 16c and 17c of the front and rear waist regions 13 and 14. The lower waist elastic body 27B is connected between the side edges 16c, 17c of the front and rear waist regions 13, 14 and the side edges of the liquid absorbent core 43, and is continuous in the lateral direction X.

The lower waist elastic body 27B has an outer end 32 and an inner end 34. The outer end 32 is located at the side edges 16c, 17c of the front and rear waist regions 13, 14, and the inner end 34 and the outer end 32 are tied in the lateral direction. X is opposite. In addition, the lower waist elastic body 27B is attached to the center of the front and rear waist regions 13, 14, and a part of the waist elastic body 27B is cut and contracted to define a non-existent inelastic region 36. In this way, the inelastic region 36 is located at the center of the front and rear waist regions 13, so the contraction force of the lower waist elastic body 27B does not directly act on the absorbent base 12 located on the skin-facing surface of the front waist sheet 16 to form wrinkles. It can suppress the decrease in absorption performance caused by its contraction force.

As a method of forming the inelastic region 36, for example, a hot melt adhesive application region for fixing the lower waist elastic body 27B is formed at both ends of the front and rear waist regions 13 and 14 in the lateral direction X. The central parts of the regions 13 and 14 in the lateral direction X form the non-coating area of the hot melt adhesive. When the lower waist elastic body 27B (only one part) located in the non-coating area is cut, the lower waist elastic body 27B automatically shrinks ( Rebound). Therefore, a non-elastic region 36 in which the lower waist elastic body 27B having contraction force is substantially absent is formed in the non-coating region.

As the waist elastic body 27, for example, an elastic material having a thickness of 470 to 1240 dtex, which is attached to a line shape, a strand shape, or a ribbon, which can be stretched to a state of contraction of 1.5 to 3.5 times. Conditions such as the thickness of the waist elastic body 27, the elongation ratio, and the separation size (pitch) between the elastic bodies can be changed as appropriate. However, in order to stably wear the body of the wearer, it is preferable to set the conditions of each elastic body so that the upper The stretching force (contraction force) of the upper stretchable region 28A caused by the waist elastic body 27A is greater than the stretchable force of the lower stretchable region 28B caused by the lower waist elastic body 27B. If the elasticity of the waist elastic body 27 is set in this way, since the upper waist elastic body 27A on the waist opening 19 side has a large elasticity, the diaper 10 can be prevented from shifting downward and the lower waist on the leg opening 20 side can be prevented The expansion and contraction force of the elastic body 27B becomes excessive.

FIG. 4 is a partial enlarged view of the back waist region 14. In addition, although the description of the front waist region 13 is omitted, it has the same structure as the rear waist region 14. On the inner side of the horizontal direction X of the lower waist elastic body 27B, the cut portion (the penetrating through the lower waist elastic body 27B) is not formed in the thickness direction. The hole 104a, on the other hand, is formed on the outer side in the lateral direction X with a cut portion 104a penetrating the lower waist elastic body 27B in the thickness direction.

In the lower waist elastic body 27B, the part where the cut portion 104a exists loses stretchability, while the remaining part of the lower waist elastic body 27B maintains stretchability.

When the cut portion 104a is formed on the lower waist elastic body 27B, the cross-sectional area of the lower waist elastic body 27B in the portion having the cut portion 104a is smaller than the cross-sectional area of the lower waist elastic body 27B before the cut portion 104a is formed. Compared with the portion where the cut portion 104a is not formed, the stretch force (elastic force) is greatly reduced.

In one lower waist elastic body 27B, the part with the cut part 104a is the low-stretch part 51 with a small stretch force (contraction force), and the part without the cut part 104a is the stretch force (contractive force) than the low stretch part 51 The large high-stretching parts 52 are arranged alternately in the horizontal direction X, and low-stretching parts 51 and high-stretching parts 52 are arranged alternately.

Therefore, according to the paper diaper 10, the plurality of lower waist elastic bodies 27B have the low-stretch portion 51. Therefore, it is possible to make the paper diaper 10 with the high-stretch portion 52 while preventing the lower waist elastic body 27B from strongly touching the wearer's body. Fits to the wearer's body. In addition, the low-stretch portion 51 of the lower waist elastic body 27B is also a portion with a small bending rigidity in the thickness direction, so it has flexibility and can greatly expand the leg opening 20 with a small force. Therefore, when the paper diaper 10 is worn, it is easy to put the foot in the leg opening 20. Furthermore, if the lower waist elastic body 27B has a large area to be cut and removed, the shrinkage force of the low-elasticity portion 51 and the high-elasticity portion can be increased. The difference in contraction force of 52 becomes larger. Furthermore, when the paper diaper 10 is worn, if the cut portions 104a and 104b are opened, the inside of the paper diaper 10 can be prevented from steaming.

The cut portion 104a is a portion extending in the horizontal direction X between the side edges 29 of the lower waist elastic body 27B in the vertical direction Y. Therefore, since the cut portion 104a is not located at the both side edges 29 of the lower waist elastic body 27B, it is possible to prevent the inner and outer sheets 21, 23 from being caught at the cut portion 104a.

In addition, the lower waist elastic body 27B located on the lower side in the longitudinal direction Y than the absorbent base 12 of the liquid-absorbent structure has a low stretch portion 51, and on the other hand, is located on the upper side in the longitudinal direction Y than the absorbent base 12 The lower waist elastic body 27B does not have the low-stretch portion 51. Therefore, it is possible to prevent the lower waist elastic body 27B from strongly touching the wearer's foot circumference on the lower side than the absorbent base 12 in the longitudinal direction Y, while the diaper 10 fits the wearer's waist circumference, and the other On the other hand, it is possible to prevent the paper diaper 10 from shifting and falling downward on the upper side of the absorbent base 12 in the longitudinal direction Y.

In the front and rear waist regions 13, 14 in the lateral direction X, a first stretchable region (first side elastic region) 29B is formed in the portion where the cut portion 104a is formed, and a stretch force ratio is formed in the portion where the cut portion 104a is not formed. A second expansion and contraction zone (second side elastic zone) 29C that is larger than the one expansion and contraction zone 29B.

As described above, by forming the front and rear waist regions 13, 14, the size of the expansion and contraction force (contraction force) of each expansion and contraction zone is the upper expansion and contraction zone 28A>the second expansion and contraction zone 29C>the first expansion and contraction zone 29B.

The first expansion and contraction area 29B is in the horizontal direction X and is arranged from Between the side edges 12C of the absorbent base 12 and the side edges 16c, 17c of the front and rear waist regions 13, 14. The second stretchable region 29C is located between the first stretchable region 29B and the side edges 43C of the liquid-absorbent core 43 of the core material, and is arranged to overlap the side flap 48 described later in a plan view. Therefore, by pressing the pair of second stretchable regions 29C to the wearer's body, it is possible to suppress the generation of gaps between the body and the front and rear waist regions 13, 14 and prevent the leakage of excrement.

In addition, since the inner sheet 21 is formed at the position where the lower waist elastic body 27B overlaps the cut portion 104a in a plan view, the cut portion 104b penetrating the inner sheet 21 is formed, so that the air permeability can be improved. On the other hand, since the outer sheet 23 does not have a cut portion, leakage of excrement can be prevented.

2, the absorbent base 12 includes: front and rear ends 12A, 12B, which are installed on the front and back waist panels 16, 17; a liquid absorbent core 43, which extends in the longitudinal direction Y at least in the crotch region 15; and a top sheet 44, which is located at The side of the liquid-absorbent core 43 opposite to the skin is formed of hydrophilic fiber non-woven fabric; the back sheet 45 is located on the side of the liquid-absorbent core 43 opposite to the non-skin, and is made of hydrophobic or impermeable fibers. The non-woven fabric is formed; and the leak-proof sheet 46 is arranged between the liquid-absorbent core 43 and the back sheet 45, and has a size covering at least the entire surface of the liquid-absorbent core 43 facing the back sheet 45. For the top sheet 44 and the back sheet 45, various well-known fiber nonwoven fabrics such as SMS fiber nonwoven fabric or spunbonded nonwoven fabric can be used.

The liquid-absorbent core 43 is a mixture of a required amount of superabsorbent polymer particles and fluff pulp, and has a semi-rigidity higher than that of the sheet member constituting the diaper 10. And, the liquid-absorbent core 43 is formed in the longitudinal direction Y If the central part has a narrow sheet form, the whole is covered by a liquid diffusing sheet 47 such as tissue. The top sheet 44 and the back sheet 45 extend outward from the peripheral edge portion of the liquid-absorbent core 43. The extension portions overlap each other and are joined by a hot melt adhesive (not shown), thereby forming the side flap 48 and the end The flaps 49, the side flaps 48 extend from both side edges 43C of the liquid-absorbent core 43 to the outside in the lateral direction X, and the end flaps 49 extend from the both ends of the liquid-absorbent core to the outside in the longitudinal direction Y .

[Second Embodiment]

Fig. 5 is an enlarged view similar to Fig. 4 showing the paper diaper 10 according to the second embodiment of the present invention. The paper diaper 10 is different in the lateral direction X at the following positions. These positions are the position of the cut portion 104a of the lower waist elastic body 27B on the side of the leg opening 20, and the lower waist elastic body 27B opens at the waist The position of the cut portion 104a of the lower waist elastic body 27B adjacent to the 19th side. Therefore, while preventing the contraction force of the lower waist elastic body 27B from locally increasing, it is possible to prevent a part of the lower waist elastic body 27B from strongly touching the wearer's feet, while the diaper 10 is attached to the wearer's Foot circumference.

[The third embodiment]

Fig. 6 is an enlarged view similar to Fig. 4 showing a paper diaper 10 according to a third embodiment of the present invention. In this paper diaper 10, when viewed in a plan view, the inner sheet 21 overlaps the cut portion 104a of the lower waist elastic body 27B to form a cut portion 104b penetrating the inner sheet 21. The inner sheet 21 where the lower waist elastic body 27B does not overlap forms a cut portion 104c. Therefore, since the area of the cut portions 104b, 104c penetrating the inner sheet 21 can be expanded, the air permeability can be improved.

In addition, the cut portions 104a, 104b, and 104c are arranged to be inclined with respect to the horizontal direction X and the vertical direction Y. Therefore, when the lower waist elastic body 27B is contracted, the cut portions 104a, 104b, and 104c are opened in the thickness direction, and the inside of the paper diaper 10 can be prevented from steaming. In addition, although illustration is omitted, the cut portion 104a may be formed between the side edges 29 of the lower waist elastic body 27B so as to extend in the lateral direction X in an inclined manner.

In addition, the paper diaper 10 of the third embodiment has been described that the front and rear waist regions 13 and 14 include the inner and outer sheets 21 and 23 and the waist elastic body 27. However, the present invention is not limited to this, and a third sheet that does not have water resistance at the cut portion may be provided on the non-skin facing surface side of the outer sheet 23. According to the paper diaper 10, since the front and rear waist regions 13, 14 have cut portions 104a, 104b, 104c, they are breathable. On the other hand, they have a waterproof third sheet on the non-skin facing side, so they can Prevent leakage of excrement.

In addition, it has been described that in the paper diapers 10 of the first to third embodiments, in the horizontal direction X, from the side edges 12C of the absorbent base 12 of the liquid-absorbent structure and the side edges 16c of the front and rear waist regions 13, 14 Between 17c, a pair of first stretchable regions (first side elastic regions) 29B is arranged, and in the horizontal direction X, between the first stretchable region 29B and the liquid-absorbent core 43 of the core material, a second stretchable region ( The second side elastic region) 29C. However, the present invention is not limited to this, and it may be in the horizontal direction X, in the liquid-absorbent core 43 and Between the side edges 16c and 17c of the front and rear waist regions 13, 14, the first stretchable region 29B is arranged.

Furthermore, it has been described that in the paper diapers 10 of the first to third embodiments, both the front and rear waist regions 13, 14 are those having the first stretchable region 29B and the second stretchable region 29C, but the paper diaper 10 of the present invention may only be either One waist region has a first stretchable region 29B and a second stretchable region 29C.

In addition, the paper diaper 10 of the 1st-3rd embodiment has demonstrated the thing which attached the front and rear end part 12A, 12B of the absorbent base 12 to the non-skin facing surface of the front and back waist area 13,14. However, the present invention is not limited to this, and the front and rear end portions 12A, 12B of the absorbent base 12 may be attached to the skin-facing surfaces of the front and rear waist regions 13, 14. The paper diaper 10 is attached to the front and rear end portions 12A, 12B of the absorbent base 12 on the skin facing surfaces of the front and back waist regions 13, 14, and the second stretchable region 29C is arranged on the non-skin facing surface of the side flap 48, so The force applied to the wearer's body by the stretching force of the second stretchable region 29C can be suppressed.

Except as specifically described, the various constituent materials constituting the diaper 10 of the present invention can use various well-known materials generally used in this field without limitation. In addition, in this specification, the basic structure of the diaper 10 exemplifies that the front and rear waist regions 13, 14 are formed by the front and rear waist panels 16, 17 of individual bodies, but may be formed by the front and rear waist regions 13, 14 and the crotch region 15 being continuous The structure formed by the sheet material may not be a short pants type in which the side edges 16c, 17c of the front and rear waist regions 13, 14 are connected in advance, but an open type paper diaper connected by a fastening tape. And, this The terms "1st" to "3rd" used in the manual are used purely to distinguish the same elements, positions, etc.

12‧‧‧Absorbent substrate (liquid absorbent structure)

12C‧‧‧Both sides of the absorption base

17c‧‧‧Both sides of the back waist area

21‧‧‧Inside sheet

23‧‧‧Outer sheet

27A‧‧‧Upper waist elastic body

27B‧‧‧Lower waist elastic body

28A‧‧‧Upper telescopic area

28B‧‧‧Lower telescopic area

29‧‧‧Both sides

29B‧‧‧First side elastic area

29C‧‧‧Second side elastic area

43‧‧‧Liquid absorbent core (core material)

43C‧‧‧Both sides of the liquid-absorbing core

48‧‧‧Side Wings

49‧‧‧End flap

51‧‧‧Low expansion part

52‧‧‧High telescopic part

104a(104b)‧‧‧Cut part (through hole)

X‧‧‧Horizontal

Y‧‧‧Vertical direction

Claims (5)

A disposable wearing article, which has: a longitudinal direction and a lateral direction, a skin contact surface and a non-skin contact surface on the opposite side thereof, and includes: a front waist region, a back waist region, located in the front and rear waist regions Between the crotch region, and the liquid absorbent structure extending from the crotch region to the front and rear waist regions, at least one of the waist regions of the front and rear waist regions has: a pair of first side elastic regions located from the liquid absorbent structure Between the side edges of the body and the side edges of the aforementioned one waist region; and the waist elastic body is attached to the first side elastic region and extends in the lateral direction, and at least one waist elastic body is in the lateral direction It has: a low-stretch portion with a cut portion and a high-stretch portion without a cut portion, characterized in that the high-stretch portion of the waist elastic body is a portion with a large cross-sectional area, and the aforementioned waist elastic body The low expansion-contraction portion is a portion whose cross-sectional area is smaller than that of the aforementioned high expansion-contraction portion. A disposable wearing article, which has: a longitudinal direction and a lateral direction, a skin contact surface and a non-skin contact surface on the opposite side thereof, and includes: a front waist region, a back waist region, located in the front and rear waist regions Between the crotch region, and the liquid absorbent structure extending from the crotch region to the front and rear waist regions, at least one of the waist regions of the front and rear waist regions has: a pair of first side elastic regions located from the liquid absorbent structure The sides of the body and Between the side edges of the one waist region; and the waist elastic body, which is tied to the first side elastic region, extends in the lateral direction, and at least one waist elastic body has in the lateral direction: has cut The features of the low-stretch portion of the site and the high-stretch portion that does not have the cut portion are characterized in that the liquid-absorbent structure has a core material and side flaps located on the outer side of the core material in the lateral direction, and the waist region on the one side There is a second side elastic region. Between the first side elastic region and the side edges of the core material, when viewed in plan, the second side elastic region overlaps the side flap, and the waist elastic body is located in the above The contraction force of the part of the second side elastic region is greater than the contraction force of the aforementioned low-stretch part. Inside the pair of second side elastic regions, there is an inelastic region where the waist elastic body does not exist. When viewed from above, , The aforementioned core material and the aforementioned non-elastic region overlap. A disposable wearing article, which has: a longitudinal direction and a lateral direction, a skin contact surface and a non-skin contact surface on the opposite side thereof, and includes: a front waist region, a back waist region, located in the front and rear waist regions Between the crotch region, and the liquid absorbent structure extending from the crotch region to the front and rear waist regions, at least one of the waist regions of the front and rear waist regions has: a pair of first side elastic regions located from the liquid absorbent structure Between the side edges of the body and the side edges of the aforementioned waist region; and the waist elastic body, which is tied to the first side elastic region and extends in the lateral direction, At least one piece of the waist elastic body has in the lateral direction: a low stretch part having a cut part and a high stretch part without a cut part, characterized by: the low stretch part of the waist elastic body, There is a cut portion extending in the lateral direction between the side edges of the waist elastic body tied in the longitudinal direction. A disposable wearing article according to claim 1, wherein the front and rear waist regions have a plurality of the waist elastic bodies in the longitudinal direction, and the waist elastic bodies are located on the lower side of the longitudinal direction than the liquid absorbent structure The elastic body has the low-stretch portion. On the other hand, the waist elastic body positioned on the upper side in the longitudinal direction than the liquid-absorbent structure does not have the low-stretch portion. The disposable wearing article of claim 3, wherein the wearing article has a waist opening and a pair of leg openings, and the front and rear waist regions have a plurality of the waist elastic bodies in the longitudinal direction, and are located on the legs The position of the cut portion of the waist elastic body on the opening side, and the position of the cut portion of the waist elastic body adjacent to the waist opening side for the waist elastic body, these two positions are in the lateral direction Are different.

Images