TWI698230B - Shorts type wearing articles - Google Patents

Abstract

The object of the present invention is to provide a shorts-type wearing article for adults, which is provided with a relatively slim liquid-absorbent core material, and can temporarily diffuse and maintain body fluids above the water-retaining capacity of the liquid-absorbent core material, so that women Wear it without feeling resistance.

The solution to the problem is that in the non-extended state of the diaper (10), the length from the lower edge (14a) of the front waistline sheet (14) to the upper edge (14b), that is, the first dimension (L1) The length from the lower edge (14a) of the front waistline sheet (14) to the lower edge of the absorbent sheet (16), that is, the second dimension (L2) is smaller, the first dimension (L1) and the second dimension (L2) The total size is 250~290mm. In addition, the length dimension in the transverse direction (X) of the lower end edge (14a) of the front waistline sheet (14) overlapping the absorbent sheet (16), that is, the third dimension (L3), the fourth dimension (L4) ) Is 45~80% of the size, and the fourth dimension is the lateral direction (X) of one of the non-overlapping parts outside the lateral direction (X) of the overlapping part in the lower edge (14a) The size of the absorbent body is 150~400g. The elongation stress of the stretch region where the front waist elastic body (20) extending in the horizontal direction (X) is arranged in the region (11) is higher than that in the rear waist region (12) when the rear waist extending in the horizontal direction (X) is arranged The elastic body (23) has a high elongation stress in the stretch region.

Description

Shorts type wearing articles

The present invention mainly relates to shorts-type wearing articles for adults.

Patent Document 1 discloses a pants-type wearing article comprising: a front waistline sheet forming a front waist area; a back waistline sheet forming a back waist area; and a back waistline sheet located between the front and back waistline sheets and forming a crotch area Absorbent sheet; liquid-absorbent core material; on the aforementioned skin-facing surface side of the absorbent sheet, a pair of leak-proof side edges extend in the longitudinal direction.

[Advanced Technical Literature] [Patent Literature]

[Patent Document 1] International Publication No. 2006/017718 (WO2006/017718)

The shorts-type wearing article disclosed in Patent Document 1, In order to ensure sufficient absorption of body fluids, the width of the absorber is increased, and even if the absorber absorbs the body fluids after excretion, the weight increases, there will be no position shift, and the longitudinal dimension of the waist is formed to be larger than that of the body. The vertical size is large. However, when the wearing article is worn, the foot opening becomes relatively small and when wearing it, the tip of the foot may hook to the foot opening or the upper end of the diaper may be exposed from the upper end of clothing such as underwear. In addition, the lower part of the crotch is stiff and a part of it is bent, so that the step-like contour line appears on the clothes, which causes the appearance of others to recognize the wearing of a paper diaper. Especially for female wearers who wear paper diapers for the first time due to minor incontinence, they may have a sense of resistance to difficulty, ugliness, and being known to wear paper diapers for these reasons.

The present invention is an improvement of the conventional technology, and its purpose is to provide a shorts-type wearing article for adults, which has a relatively slim liquid-absorbent core material, and can temporarily diffuse and maintain the water-holding capacity of the liquid-absorbent core material The above body fluids can make women wear them without feeling resistance.

The present invention relates to a shorts-type wearing article for adults, which has a longitudinal direction and a lateral direction, and includes: a front waistline sheet forming a front waistline area; a back waistline sheet forming a back waistline area; and a front and back waistline sheet Between the bodies and forming the aforementioned crotch region and having an absorbent sheet.

The pants-type wearing article of the present invention is characterized in that the absorbent system has a liquid-absorbing core material, and the water retention capacity of the absorbent body is 150~400g, on the skin-facing side of the absorbent sheet, there is also a pair of leak-proof sides extending in the longitudinal direction, and the leak-proof sides are the side edges of the liquid-absorbent core material. A base end portion extending in the longitudinal direction from the lateral direction and a free portion where a plurality of side elastic bodies extending in the longitudinal direction are arranged, and the side extending portion extending in the longitudinal direction is located on the leakage-proof side The laterally outer side of the base end portion, the side extension portion is provided with a leg elastic body, and the thickness direction of the side extension portion is larger than the absorbent sheet provided with the liquid-absorbent core The size in the thickness direction of the central portion of the body is large.

Since the thickness of the central portion of the absorbent sheet is 2.0 to 4.0 mm, and the thickness of the side extension portion of the absorbent sheet is 5.0 to 7.0 mm, the thickness of the side body and the absorbent sheet Between the central part, a space surrounded by both sides is formed to allow air to flow. Therefore, it is possible to prevent the diaper 10 from being stuffy.

In the non-extended state, the length from the upper end edge to the lower end edge of the front waistline sheet, that is, the first dimension is greater than the length from the lower end edge of the front waistline sheet to the lower end edge of the absorbent sheet. That is, the second size is small, and the total size of the first size and the second size is 250 to 290 mm, and the length dimension in the lateral direction of the lower end edge of the front waistline sheet body overlapping the absorbent sheet body is also That is, the third size, the fourth size is 45 to 80% of the size, and the fourth size is located in the lower end edge of the overlapping portion outside of the lateral direction of one of the pair of non-overlapping portions. The dimensions in the lateral direction are arranged in the front waist area to extend in the lateral direction The stretched stress of the stretched area of the front waistline elastic body is higher than the stretched stress of the stretched area of the back waistline elastic body that extends in the lateral direction in the back waist region. Therefore, in the worn state, the crotch is relatively higher. The appearance of a small low waist can give a neat and tidy impression from the front view.

In the extended state, the first size is 180~210mm, the second size is 170~190mm, the third size is 190~210mm, and the fourth size is 170~270mm. Therefore, in the wearing state, the crotch appears The appearance of a small and low waist can give a neat and tidy impression.

The side extension portion has a hydrophilic layer and a hydrophobic layer covering the hydrophilic layer in the thickness direction. Therefore, the hydrophilic layer can temporarily hold body fluids above the water retention capacity of the absorber. The sexual layer is covered by the hydrophobic layer, which can suppress the leakage of body fluids.

Since there is a liquid-permeable inner sheet covering the skin facing side of the absorbent body, the hydrophilic layer has extension portions of the inner sheet that extend from both side edges of the absorbent body further to the outside in the lateral direction. , By using the liquid diffusibility and liquid retention of the inner sheet, it is possible to temporarily retain body fluids above the water retention capacity of the absorbent body.

Since the absorbent system has a liquid-absorbent core material and a core material covering sheet that wraps it, the hydrophilic layer has an extension of the core material covering sheet extending from both sides of the absorbent core material to the outside in the lateral direction. Partially, therefore, it is possible to temporarily retain body fluids greater than the water retention capacity of the absorbent body by utilizing the liquid diffusibility and liquid retention properties of the core material covering sheet.

According to the shorts-type wearing article for adults according to the present invention, it is easy to adapt to underwear, it becomes easy to conform to its movement, and internal leakage can be effectively suppressed.

10‧‧‧Pants type wearing articles for adults (diapers)

11‧‧‧Front waist area

12‧‧‧Rear waist area

13‧‧‧Crotch area

14‧‧‧Front waist thin body

14a‧‧‧The lower edge of the front waist sheet (lower edge)

14b‧‧‧Upper edge of front waistline sheet (upper edge)

15‧‧‧Back waist thin body

16‧‧‧Absorbent sheet

19A‧‧‧Front end

19B‧‧‧Back end

20‧‧‧Front waist elastic body (waist elastic body)

20B‧‧‧Front and lower waist elastic body

23‧‧‧Back waist elastic body (waist elastic body)

23B‧‧‧Back waist elastic body

31‧‧‧Inner sheet

31A‧‧‧Extension of inner sheet

32‧‧‧Coated sheet

33‧‧‧Absorber

34‧‧‧Leak-proof film

35‧‧‧Liquid absorbent core material

36‧‧‧Core material covering sheet

36A‧‧‧The core material covers the extension of the sheet

50‧‧‧Hydrophilic layer

51‧‧‧The first hydrophobic layer

52‧‧‧The second hydrophobic layer

60‧‧‧Leak-proof side

61‧‧‧Side extension

62‧‧‧Base end

63‧‧‧Freedom

64‧‧‧Side elastic body

65‧‧‧Foot elastic body

D1‧‧‧The thickness of the central part of the absorbent sheet

D2‧‧‧The thickness of both sides of the absorbent sheet

L1‧‧‧The first size

L2‧‧‧Second size

L3‧‧‧3rd size

L4‧‧‧4th size

X‧‧‧Horizontal

Y‧‧‧Vertical direction

Z‧‧‧Thickness direction

The drawings show specific embodiments of the present invention disclosed in this disclosure, and include not only the indispensable structure of the invention, but also optional and ideal embodiments.

Fig. 1 is a perspective view showing a disposable diaper as an example of the shorts-type wearing article of the present invention.

Fig. 2 is a partially broken and expanded plan view of the paper diaper viewed from the side facing the skin.

Fig. 3 is a cross-sectional view taken along the line III-III of Fig. 2.

Fig. 4 is an enlarged view of the area enclosed by the IV line of Fig. 3.

Fig. 5 (a) is a plan view of the non-stretched state of the paper diaper, and (b) is a diagram showing the state of measuring the change of the outer line of the clothes after putting on clothes on a doll wearing the paper diaper.

Figure 6 (a) is a plan view of a non-extension state of a paper diaper as an example of a conventional paper diaper, and (b) shows that a doll wearing a conventional paper diaper is put on clothes, and the outline of the clothes is measured. A picture of the changing state.

Figure 7 (a) is a plan view showing the non-stretched state of panties as an example of women's panties, (b) is shown on a doll wearing panties After the clothes are put on the clothes, measure the shape of the change of the clothes.

The following embodiment relates to the disposable diaper 10 as an example of the pull-on wearing article of the present invention as shown in Figs. 1 to 7 mainly for adults. It not only contains the indispensable structure of the invention, but also Including optional and ideal structure. In FIG. 2, each elastic system described later overcomes its contraction force and stretches to the wrinkles generated by the contraction force in the transverse direction X and the longitudinal direction Y to the component elements of the paper diaper 10 mounted with each elastic body The state based on the extent to which natural vision seems to have disappeared substantially.

As shown in Figures 1 to 3, the disposable paper diaper 10 has a longitudinal direction Y and a transverse direction X intersecting it, a thickness direction Z, a skin-facing surface and its opposite non-skin-facing surface, and The length dimension of the horizontal direction X divided by the longitudinal centerline P and the length dimension of the vertical direction Y divided by the horizontal centerline Q are roughly symmetrical to the longitudinal centerline and include the front waist region 11, the rear waist region 12, And the crotch region 13 located between the front waist region 11 and the back waist region 12. In the present invention, a shorts-type wearing article refers to a pull-on wearing article that has defined waist openings and foot openings. After inserting the wearer's feet into the foot openings, the article is lifted up to the waist and worn Items used on the body of the wearer. The item has or not a pair of pants.

The paper diaper 10 includes: a front waistline sheet 14 forming a front waist area; a back waistline sheet 15 forming a back waist area; and a longitudinal direction Y extending between the front and back waistline sheets 14 and 15 and forming a crotch area 13 Absorbing sheet body 16.

The absorbent sheet 16 has: a front end 19A located on the skin-facing surface side of the front waistline region 11; a rear end 19B located on the skin-facing surface side of the back waistline region 12; and a middle between the front and rear end portions 19A and 19B部19C. In this embodiment, the front and rear end portions 19A, 19B of the absorbent sheet 16 are located on the skin-facing side of the front and rear waistline regions 11, 12, respectively. However, the absorbent sheet 16 can also be fixed to the front and rear waistline sheets 14, 15 On the outside, the front and rear end portions 19A, 19B are located on the non-skin facing surfaces of the front and rear waist regions 11, 12.

The side edges of the front waist region 11 and the side edges of the back waist region are joined to each other by a plurality of side seams 25 intermittently in the longitudinal direction Y, thereby defining a waist opening 26 and a pair of feet Opening 27. The side seam 25 can be formed by various bonding means such as hot melt adhesives, various conventional bonding means such as welding means such as heat sealing and ultrasonic processing, or a combination of these means.

The front waistline sheet 14 has a horizontally long rectangle. The lower end edge (the lower end edge of the front waist area) 14a of the forefoot opening is formed, the upper end edge of the front waistline opening (the upper end edge of the front waist area) 14b and the upper , The two side edges 14c, 14d (the side edges of the front waist area) extending in the longitudinal direction Y between the lower end edges 14a, 14b are delimited. In addition, the front waistline sheet 14 also has: a liquid-impermeable inner sheet 17 located on the side facing the skin; a liquid-impermeable outer sheet 18 located on the side of the non-skin facing surface; and inner and outer layers Between the sheets 17 and 18, a plurality of string-shaped or strand-shaped front waist elastic bodies 20 are arranged so as to be shrinkable in a state of being stretched in the lateral direction X.

The back waistline sheet 15 has: a lower end edge (lower end edge of the back waist area) 15a forming a part of the rear foot opening; an upper end edge (upper end edge of the back waist area) 15b forming the back waist opening; and upper and lower end edges 15a 15c, 15d on both side edges (side edges of the rear waist area) extending in the longitudinal direction Y between 15b. The back waistline sheet 15 also has: a liquid-impermeable inner layer sheet 21, which is located on the side facing the skin; a hydrophobic and/or liquid-impermeable outer layer sheet 22, which is located on the side of the non-skin facing surface; and Between the inner and outer layer sheets 21 and 22, a plurality of string-shaped or strand-shaped back waist elastic bodies 23 are arranged so as to be shrinkable in a state of being stretched in the lateral direction X.

The front waist elastic body 20 includes a plurality of upper front waist elastic bodies 20A extending in the lateral direction X along the upper end edge 14b; and a lower front waist elastic body located between the upper front front waist elastic body 20A and the lower end edge 14a 20B. The rear waist elastic body 23 includes a plurality of upper rear waist elastic bodies 23A extending in the lateral direction X along the waist opening edge; and a lower rear front waist elastic body located between the upper rear front waist elastic body 23A and the lower end edge 15a 23B. The lower front waist elastic body 20B is at a position overlapping with the front end 19A of the absorbent sheet 16 in the plan view of the diaper 10, and the lower back waist elastic body 23B is located behind the absorbent sheet 16 in the plan view. A position where the ends 19B overlap each other.

The inner and outer layer sheets 17, 18, 21, and 22 of the front and rear waistline sheets 14, 15 can be used with liquid impermeability and ideally air-permeable mass about 10-40g/m ² , fiber density about 0.03~0.1g/cm ³ of various conventional fiber nonwovens such as spunbonded fiber nonwovens, SMS (spunbonded-meltblown-spunbonded) fiber nonwovens, and hot air fiber nonwovens.

For the back waist elastic bodies 20 and 23, as the front and rear upper waist elastic bodies 20A and 23A, for example, a string or strand that has a fineness of about 600 to 1200 dtex and is arranged to be shrinkable when stretched to about 2.5 to 3.5 times can be used. Shaped elastic material. In addition, as the front and rear waist elastic bodies 20B and 23B, for example, a string-shaped or strand-shaped elastic material that has a fineness of about 400 to 800 dtex and is arranged so as to be shrinkable while being stretched about 1.5 to 3.0 times. It is preferable that the extension stress of the stretchable region where the front and lower waist elastic body 20B is arranged is higher than the stretch stress of the stretchable region where the rear and lower waist elastic body 23B is arranged.

Various conditions such as the denier, elongation ratio, and separation size (pitch) between the elastic bodies 20 and 23 of the front and rear waistline can be changed as needed, but in order to be worn stably on the waist opening side For the body, the conditions of each elastic body are set so that the extension stress of the stretchable region of the front and rear waist elastics 20A, 23A is higher than the stretched stress of the stretched region of the front and rear waist elastics 20B, 23B. In addition, as long as the required elasticity can be applied to the front and rear waist regions 11, 12, instead of the front and rear waist elastic bodies 20, 23, elastic stretch sheets can be arranged on the inner or outer sides of the front and rear waist regions 11, 12 , Or the elastic stretch sheet and the waist elastics are arranged on the inner or outer side of the front and rear waist regions 11, 12. By arranging the front and back waist elastics 20 and 23 on the entire outer surface of the diaper 10, a plurality of wrinkles can be formed on the outer surface, and the whole is wrinkled.

The absorbent sheet 16 is a longitudinal rectangle defined by the front and rear edges 16a, 16b and the side edges 16c, 16d, and the front and rear ends 19A, 19B The front and rear waistline sheets 14 and 15 are bonded to each other via front and rear bonding regions (not shown) formed by applying, for example, a hot melt adhesive to the skin facing surfaces. The coating pattern of the hot-melt adhesive in the front and rear joining areas may, for example, be in addition to a plurality of linear shapes extending in the longitudinal direction Y, as well as various conventional shapes such as Ω-shaped, spiral-shaped, and wave-shaped.

As shown in FIGS. 2 to 4, the absorbent sheet 16 has a liquid absorbent structure composed of a hydrophilic/liquid-permeable inner sheet (body side liner) 31 and an absorbent 33 located on the side facing the skin. Body 30; a hydrophobic coating sheet 32 located on the non-skin-facing surface side of the liquid-absorbent structure 30; and on the non-skin-facing surface side of the liquid-absorbent structure 30, having a hydrophobicity of at least the size that covers its bottom surface Or liquid-impermeable anti-leak film 34. The absorber 33 has a liquid-absorbent core material 35 and a core material covering sheet 36 covering the entire liquid-absorbent core material 35.

The liquid-absorbent core material 35 is a semi-rigid sheet shape that gives the desired shape, and has: front and rear end edges extending in the lateral direction X; and between the front and rear end edges, toward the longitudinal center line P (in the lateral direction X inner side) protruding curved and extending side edges 35c, 35d. In addition, the liquid-absorbing core material 35 includes wood fluff pulp; and superabsorbent polymer particles (SAP) commonly used in the industry. When the wearing article 10 is used as a paper diaper for adults with slight urinary incontinence, the thickness of the liquid-absorbing core material 35 is better. For example, the quality of the wood fluff pulp can be used to reduce the SAP The quality is relatively small to maintain the required water absorption and reduce the thickness dimension, and the liquid-absorbent core material 35 may be formed of SAP alone.

The inner surface sheet 31 and the core material covering sheet 36 are formed of a sheet material having lyophilicity (hydrophilicity) and liquid diffusibility. As the material, for example, a material with a mass of about 15~25g/m ² can be used. Chemically treated spunbond fiber non-woven fabric, SMS fiber non-woven fabric, etc. As the material of the core covering sheet 36, the same type of sheet material as the inner sheet 31 can be used, but thin paper is preferable. In addition, the thickness dimension is smaller than the thickness dimension of the inner sheet 31, and the thickness dimension can achieve the strength which can hold the liquid-absorbent core material 35 in a desired shape. The coating sheet 32 is formed of a hydrophobic or substantially liquid-impermeable sheet material, for example, SMS fiber non-woven fabric, spun-bonded non-woven fabric, etc., with a mass of about 15-30 g/m ² . The anti-leak film 34 is formed of a hydrophobic sheet material ideally having air permeability, such as a moisture-permeable plastic film with a mass of about 10-25 g/m ² .

In the liquid-absorbent structure 30, the inner surface sheet 31 extends from both side edges 35c and 35d of the liquid-absorbent core material 35 further outward in the lateral direction X. Specifically, the inner sheet 31 on the skin facing side covering the liquid-absorbent core material 35 is bent along a bending line (not shown), and then extends toward the longitudinal center line P so that its outer edge 31b is located on the non-skin-facing surface side of the liquid-absorbent core material 35, and the aforementioned bending line extends in the longitudinal direction Y along both side edges 16c and 16d of the absorbent sheet 16. In addition, the core material covering sheet 36 covering the liquid-absorbent core material 35 has an outer shape that is one size larger than that of the liquid-absorbent core material 35. The inner surface sheet 31 and the core material covering sheet 36 respectively have extension portions 31A, 36A extending from both side edges 35c, 35d of the liquid-absorbent core material 35 to the outside in the lateral direction, and the extension portions 31A, 36A, a hydrophilic layer (liquid-absorbing layer) 50 is formed on the outer side of the liquid-absorbing core material 35 in the lateral direction X.

Since the hydrophilic layer 50 is formed by the folded extension portions 31A and 36A of the inner sheet 31 and the core covering sheet 36, it has a four-layer structure. However, as long as it has the required liquid retention performance, the extended portion 31A of the inner surface sheet 31 and the extended portion 36A of the core covering sheet 36 have a single-layer structure instead of a two-layer structure, and the hydrophilic layer 50 It can also be formed only by the extended portion 31A of the inner sheet 31. In addition, since the side edges 35c and 35d of the liquid-absorbent core material 35 have a concave shape, the hydrophilic layer 50 has the largest dimension in the horizontal direction X in the center of the crotch region 13, and is in the front and back waist regions 11, 12 Among them, the size in the horizontal direction X is the smallest.

By having this structure, the absorbent sheet body 16 further includes: a pair of leak-proof side edges 60 extending in the longitudinal direction Y; and a pair of lateral extension portions located outside the lateral direction X of the leak-proof side edge 60 ( Gasket edge) 61. The leak-proof side 60 has: two end fixing portions fixed to the inner sheet 31 via the end joining areas 48 in the both side portions 42 of the covering sheet 32; A base end portion (proximal end portion) 62 extending in the direction Y; and a free portion (distal end portion) 63 extending in the longitudinal direction Y between the fixed portions at both ends and extending in the longitudinal direction Y parallel to the base end portion 62. In the free portion 63, a side elastic body 64 is arranged, and the side elastic body 64 can be contracted in an extended state. In the wearing state, the side elastic body 64 shrinks, so that the edge part separates from the inner sheet 31 toward the wearer's body, and fits next to the wearer's thigh to prevent leakage of excrement.

In this embodiment, the leak-proof side 60 and the side extension 61 is formed from the covering sheet 32, but the leak-proof side 60 may be formed from a sheet material different from the covering sheet 32. In this case, since the leakage prevention side 60 is mainly used to prevent leakage of excrement, it does not necessarily need to be formed of a liquid-impermeable sheet. In addition, as the free portion 63 of the leakage preventing side 60 or the side elastic body 64, an elastic stretchable sheet can be used. The covering sheet 32 has: a main body 41 on which the liquid-absorbent structure 30 is arranged; both side portions 42 located on both sides of the main body 41 in the transverse direction X; and bent toward the non-skin facing surface side of the liquid-absorbent structure 30 42A of outer side edges.

The side extension 61 of the absorbent sheet 16 has: a hydrophilic layer 50 composed of the extension 31A of the inner sheet 31 and the extension 36A of the core covering sheet 36; and in the thickness direction Z The hydrophobic layers 51 and 52 of the hydrophilic layer 50 are covered thereon. The hydrophobic layers 51 and 52 have: a first hydrophobic layer (lower layer) 51 covering the non-skin facing surface side of the hydrophilic layer 50; and a second hydrophobic layer covering the skin facing edge side of the hydrophilic layer 50 Sexual layer (upper layer) 52. The first hydrophobic layer 51 has a three-layer structure consisting of the main body 41 of the coating sheet 32, the outer edge 42A, and the leak-proof film 34. The second hydrophobic layer 52 has both sides 42 of the coating sheet 32. It is a 2-layer structure. Between the side edge portion of the leak-proof film 34 forming the first hydrophobic layer 51 and the outer edge portion 42A of the covering sheet 32, a plurality of leg elastic bodies 65 are attached so as to be shrinkable in an extended state. The side extension 61 of the absorbent sheet 16 is elastic at least in the longitudinal direction Y due to the contraction of the leg elastic body 65 located on the first hydrophobic layer 51.

In the wearing state of the diaper 10, the leak-proof side 60 has The contraction action of the side elastic body 64 stands up toward the wearer's body, and the side extension 61 fits near the root of the thigh by the contraction force of the foot elastic body 65. In this way, the edge of the foot opening of the diaper 10 abuts against the body in a wider range by the leak-proof side 60 and the side extension 61. Therefore, compared with only the leak-proof side 60, it prevents the excrement from being horizontal. The leakage situation can more effectively prevent lateral leakage of excrement.

Since the side extension 61 has the first hydrophobic layer 51 on the non-skin facing surface side covering the hydrophilic layer 50 and the second hydrophobic layer 52 on the skin facing surface side covering the hydrophilic layer 50, , It can suppress that the hydrophilic layer 50 diffuses to its both side edges and the absorbed body fluid leaks to the outside. In addition, since the side extension 61, the first and second hydrophobic layers 51, 52 are formed by bending the covering sheet 32 so as to cover the entire hydrophilic layer 50, the hydrophobic layer is also located on the hydrophilic layer 50 is outside the horizontal direction X, so there is no leakage of body fluid to the outside.

Fig. 5(a) is a plan view of the non-stretched state of the paper diaper 10 of the present embodiment, and Fig. 5(b) shows the clothes 92 (trousers) after wearing the clothes 92 (trousers) on the doll 91 wearing the paper diaper 10, and the clothes 92 are measured Figure 6(a) is a plan view of the non-stretched state of the paper diaper 110 as an example of a conventional paper diaper, and Figure 6(b) is a plan view showing that the conventional paper diaper is worn Figure 7(a) is a plan view of the non-stretched state of underwear 210 as an example of women’s underwear, after wearing clothes 92 on doll 91 of 110, Figure 7(b) ) Is a diagram showing the state of measuring the change of the outer line of the clothes after putting on the clothes 92 on the doll 91 wearing the underwear 210.

In FIG. 5(b), the measuring doll 91 which has the form of the lower body of a general female is arrange|positioned so that it may be separated 23mm from the wall surface 90 located on the back of the closest position. Next, in the state where the doll 91 is put on the paper diaper 10, and then put on the clothes (trousers) 92 that can fit in the doll 91 ideally made of stretchable material, measure the separation from the closest position U1 of the wall 90 Distance R1 (mm). In FIGS. 6(b) and 7(b), under the same conditions as in the case of the paper diaper 10, the conventional paper diaper 110 and the underwear 210 are respectively put on the doll 91 and measured, and the closest position is measured The separation distance of U2 and U3 is R2 and R3 (mm). The garment 92 uses a style with a shallow crotch for women (so-called low-waist style), and the crotch size is 210 mm.

As shown in FIG. 5(a), for the convenience of description, the paper diaper 10 is divided into an upper portion 81 formed by the front waistline sheet 14 and a lower portion 82 located below the upper portion in a front view. The paper diaper 10 is in a non-stretched state (shrinked state), and the dimension of the front waistline sheet 14 in the longitudinal direction Y from the upper end edge 14b to the lower end edge 14a, that is, the first dimension (the longitudinal dimension of the upper portion 81) L1 is 110 ~140mm, the separation dimension from the lower edge 14a of the front waistline sheet 14 to the lowermost end of the absorbent sheet 16 (point on the horizontal centerline Q), that is, the second dimension (the longitudinal dimension of the lower portion 82) L2 is 140~ 150mm, the lower end edge 14a of the front waistline sheet 14 that overlaps with the absorbent sheet 16 has a length dimension in the transverse direction X, that is, the third dimension L3 is 120~140mm. The lower end of the front waistline sheet 14 One of the pair of non-overlapping portions located outside the lateral direction X of the overlapping portion in the edge 14a The dimension of the non-overlapping portion in the horizontal direction X, that is, the fourth dimension (the width dimension of the foot opening) L4 is 50 to 90 mm. Furthermore, the first dimension L1 and the second dimension L2 are measured along the longitudinal center line P.

Also, although not shown, in the state where the diaper 10 is stretched in the vertical direction Y and the horizontal direction X, the width W1 of the front waist region 11 (or the back waist region 12) in the horizontal direction X is 550 to 740 mm, the first size L1 is 180~210mm, the second size L2 is 170~190mm, the third size L3 is 190~210mm, and the fourth size L4 is 170~270mm.

As shown in Fig. 6(a), the paper diaper 110 of Comparative Example 1 has the same basic structure as the paper diaper 10 of this embodiment (but does not have the structure regarding the side extension 61), including forming the front waist area The front waistline sheet 114 of 111, the back waistline sheet forming the back waistline region, and the absorbent sheet 116 attached to the skin facing side of the front and back waistline sheet 114. The front waistline sheet 114 and the back waistline sheet are joined to each other via side seams 125 intermittently in the longitudinal direction Y at both side edges. The absorbent sheet 116 has: the front waistline sheet 114 is located on the skin facing side The front end 119A; the rear end located on the skin-facing surface side of the back waistline sheet; and the middle portion 119C located between the front end 19A and the rear end. In the front waistline sheet 114, a plurality of upper front waistline elastic bodies 120A extending in the lateral direction X on the waist opening side and a lower front waistline elastic body 120B extending in the lateral direction X below them are arranged. In the portion of the front waistline sheet 114 that overlaps the front end 119A of the absorbent sheet 116, the lower front waistline elastic body 120B is cut and removed, and the back waistline sheet has the same structure. Also, for the convenience of explanation, the conventional diapers 110 It is divided into an upper part 181 composed of a front waistline sheet 114 and a back waistline sheet, and a lower portion 182 located below the upper portion.

The conventional paper diaper 110 has various sizes of paper diapers for general adults. In the non-stretched state, the longitudinal direction Y of the front and rear waist sheet 114 from the upper edge 114b to the lower edge 114a is the first size ( The longitudinal dimension of the upper part 181) M1 is 150~170mm. In addition, the separation dimension from the lower end 114a of the front waistline sheet 114 to the lowermost end of the absorbent sheet 116 (the point T2 on the horizontal center line halves the longitudinal dimension of the entire diaper 110) is the second dimension (lower The longitudinal dimension of the portion 182) M2 is 140~150mm, and the length dimension in the horizontal direction X of the lower end 114a of the front waistline sheet 114 that overlaps the absorbent sheet 116 (overlapping portion), that is, the third dimension M3 is 140 ~160mm, the lower end edge 114a of the front waistline sheet 114 is located outside the lateral direction X of the overlapped part. One of the non-overlapping parts is one of the non-overlapping parts. The lateral direction X is the fourth dimension (foot opening The size of M4 is 80~90mm. In addition, the first dimension M1 and the second dimension M2 are measured along the longitudinal center line J that halves the lateral dimension and extends perpendicularly from the upper end edge 114b to the lower end edge 114a.

As shown in Figure 7(a), general women’s underwear 210 has front and back waist regions 211, 212 and crotch region 213, and elastic sheets 220, 221 that are different from the body of the underwear at the waist opening edge and the foot opening edge. It is installed telescopically. The underwear 210 has an upper part 281 extending from the upper end edge 214b of the front waist area 211 to the upper end edge of the foot opening in a front view, and a lower part below the upper part 281 Part 282. Here, in the underpants 210, the lower end edge of the front waist region 211 refers to the lower end edge 214a connecting the upper ends of a pair of leg openings to each other.

Underpants 210, the first dimension (longitudinal dimension of the upper part 281) N1 from the upper end edge 214b to the lower end edge of the front waist region 211 in the non-stretched state is 100~120mm, from the front waist region 211 The separation size from the bottom edge to the bottom end of the crotch area 213 (the point T3 on the horizontal center line that halves the overall longitudinal dimension of the underwear 210), that is, the second dimension (the longitudinal dimension of the lower portion 282) N2 is 130~150mm , The lower end edge of the front waist region 211 and the crotch region 213 have a size N3 in the lateral direction X of 110~160mm, and the size of the lateral direction X of the portion outside the lateral direction X (foot opening The width dimension of N4 is 72~88mm. In addition, the first dimension N1 and the second dimension N2 are measured along the longitudinal center line J that halves the lateral dimension and extends perpendicularly from the upper end edge 214b to the lower end edge 214a.

In recent years, mainly women, the upper end is hung on the waist to wear low-waisted underwear and clothes with a shallow crotch. In addition, the conventional shorts-type paper diapers are designed to have a large waist area in the longitudinal direction. When low-waist style clothing is worn, a part of it may be exposed to the outside of the clothing from above. In addition, when the width of the crotch area of the paper diaper is large, the crotch is stiff and uncomfortable, and part of the crotch is folded or bent, resulting in a step-like contour line on the surface of the clothing, which may cause a visual angle of appearance. The above recognized the risk of wearing paper diapers. For clothing that prefers low-rise styles and is worn for the first time as a minor incontinence For the wearer of relatively young women (40s to 60s), when wearing paper diapers, the paper diapers are exposed from the low-waist style clothing or form a stepped contour line on the surface of the clothing, making Others learned that wearing paper diapers would cause a psychological burden. Therefore, it is desirable to make the following paper diapers, that is, even in the case of wearing low-waist style clothing, no part of it is exposed or the crotch part is hard to form a stepped contour line that has a wear like underwear Sense of paper diapers.

As shown in FIG. 7(a), in the measurement of the doll 91 after putting on the underwear 210, the separation dimension R3 from the position U3 closest to the wall surface 90 is 18 mm, and a part of the underwear 210 is not exposed from the top of the clothes 92. In this way, in the state of wearing the clothes 92 to the doll 91 that has put on the underwear 210, by the underwear 210 close to the doll 91, the part of the back underwear 210 that does not fit the doll 91 will not be loose and form a step difference. Protruding to the rear occurs, and the whole can give a delicate impression. In the case of wearing underwear 210, the reason why a part of underwear 210 does not protrude from the top of clothing 92 should be underwear 210. Since the first size N1 is smaller than the second size N2, the whole is formed into a low-rise style Because of the shape. In addition, since the total size of the first size N1 and the second size N2 is 230~270mm, the lower part 282 of the underwear 210 will not be loose in the low-waisted garment 92 with a crotch size of 210mm, and can fit the doll 91 There is no step difference caused by the part loosened on the surface of the clothes 92. In addition, the applicant performed the same measurement on a plurality of underwear 210 with different sizes, and found that the total size of the first size N1 and the second size N2 is within the range of 250~290mm, the lower part 282 fits on doll 91 without loosening.

Therefore, in the paper diapers 10, 110, in order to have a low-waist shape like the underwear 210 and not loose the inner and lower parts 82, 182 of the clothes 92, it is necessary to make the first size L1, M1 of the paper diapers 10, 110 smaller than the first size. 2 The size L2 and M2 are small, and the total size of the first size L1, M1 and the second size L2, M2 is within the range of 250~290mm.

In the conventional paper diaper 110, the longitudinal dimension of the upper portion 181 constituted by the front waist region 111, that is, the first dimension M1, and the longitudinal Y dimension of the lower portion 182, that is the second dimension M2, the first dimension M1 is smaller than the second dimension M2. 2 The size M2 is small, and the first size M1 plus the second size M2 is at least 290 mm or more. As shown in FIG. 6(b), in the doll 91 wearing the conventional paper diaper 110, the lower part 182 loose on the back side of the garment 92 is presented on the surface in a stepped shape, and is formed to protrude backward. Therefore, the separation dimension R2 of the position U2 closest to the wall surface 90 of the doll 91 is 5 mm. In addition, since the first size M1 is larger than the second size M2, a part 110A of the diaper 110 protrudes from above the clothes 92. In this way, the conventional diaper 110 does not fit the doll 91. On the back side, the lower part 182 is loose and cannot give a neat and tidy impression to the whole. Moreover, because a part of 110A protrudes from the clothes 92, the appearance may be greatly damaged. .

In addition, the paper diaper 10 of the present embodiment has the first dimension L1 in the longitudinal direction of the upper portion 81 formed by the front waist region 11 and the longitudinal Y dimension of the lower portion 82, that is, the second dimension L2. The size L1 is smaller than the second size L2, and the first size L1 plus the second size L2 In the range of 250~290mm. As shown in Figure 5(b), in the doll 91 wearing the paper diaper 10, the distance R1 between the wall surface 90 and the position U closest to the wall surface 90 is 15mm. On the back side of the clothing 92, the lower part 82 is not It will be loose and there is no step difference caused by the lower part 82. In addition, a part of the paper diaper 10 does not protrude above the clothes 92 either. In this way, by fitting the diaper 10 to the doll 91, the part loosened on the surface of the clothes 92 will not appear as a contour line, which can give a simple and neat impression, and there will be no part of the diaper 10 from the clothes 92. Protruding and detrimental to the appearance.

In addition, even in the non-stretched state, the underpants 210 are designed to have a larger width of the foot opening in order to make it easier to insert the foot through the foot opening when worn. Specifically, the width of the foot opening is the fourth The size N4 has the width of the crotch, that is, about 45 to 80% of the third size N3. In the diaper 10, since the fourth size L4 is approximately 45 to 80% of the third size L3, when it is worn, it is easy to insert the foot through the foot opening as in the underwear 210. In addition, according to the knowledge of the applicant in this case, when the fourth size N4 is 45% or less of the third size N3, the width of the foot opening becomes narrow, making it difficult for the foot to penetrate. In addition, the size is 80 In the case of a size greater than %, the foot opening becomes too large, and the width of the crotch becomes relatively narrow, there is a risk of biting into the body during wearing.

In addition, the paper diaper 10 of the present embodiment mainly targets mild incontinence of adults. Therefore, the absorber 33 located in the absorbent sheet 16 is thinner than the paper diaper for non-minor incontinence, and its water retention capacity is also higher. Low, even when body fluids diffuse to the entire absorber 33, there will be no It is caused by a situation where the crotch part hangs downward due to its own weight. Specifically, the water retention capacity of the absorber 33 is 150 to 400 g. In addition, in the conventional paper diaper 110, the absorbent body is thick and its water retention capacity is 500~1200g. When the body fluid spreads to the entire absorbent body, the lower part 182 may hang downward due to the weight of the absorbent body. Therefore, in the appearance of the clothing 92, the appearance of the conventional diaper 110 may appear more clearly. Furthermore, in the case of a general elderly person, the urinary volume per time is about 100 to 200 g, and the diaper 10 can sufficiently absorb and maintain the urinary volume.

<Measurement method of water retention capacity of absorbent>

First, cut the side edges of the side seams 25 from the diaper 10, and cut the front and back waist elastic bodies 20, 23 and the foot elastic body 65 to obtain a sample in a flat state where the contraction force of each elastic body is not applied. . Next, the weight of the sample is measured (E), and the entire sample is immersed in a plate-shaped container filled with physiological saline (0.9% NaCl solution) for 30 minutes. Next, after 30 minutes have passed, both sides of the waist end of the sample are clamped to the jig fixed to the long rod and hung, and left in this state for 10 minutes. Finally, place the sample in a dehydrator (150G) for dehydration for 90 seconds, and then measure its weight (F). The water retention capacity of the absorber is calculated by the formula F(g)-E(g). In addition, with regard to the conventional paper diaper 110, the water retention amount was obtained by the same measuring method.

Furthermore, in the paper diaper 10 of the present embodiment, it is preferable that the extension stress of the stretchable region where the lower back waist elastic body 23B is arranged is lower than the stretch stress of the stretchable region where the lower front waist elastic body 20B is arranged. Absorb thin The rear end 19B and the front end 19A of the sheet 16 intersect the front and rear waist elastic bodies 20B, 23B. When the size of the lateral direction X is reduced by its contraction force, the rear end 19B shrinks more than the front end. The amount of contraction of 19A is small, and the lateral size of the rear end 19B is larger than that of the front end 19A. Therefore, before wearing, the wearer can cover the entire buttocks of the wearer, and can be visually recognized and can be fully absorbed. Maintaining the body fluids excreted toward the back waist area 12 side can give a sense of peace of mind. In addition, since the lateral dimensions of the front rear end portions 19A and 19B are different when seen through the front and rear waistline sheets 14, 15, the front and rear of the diaper 10 can be easily recognized. In addition, the width of the front end 19A is narrower than the rear end 19B, and the size of the absorbent sheet 16 in the lateral direction X is smaller. Therefore, the front view of the diaper 10 can give a neat and tidy impression. Therefore, even if the wearer wears well-fitting clothing, the appearance of the paper diaper 10 will not be clearly recognized from the clothing, and the wearer who wears the paper diaper 10 for the first time can reduce the resistance to wearing.

<Method for measuring the elongation stress in the stretch zone>

The elongation stress of each expansion and contraction zone was measured by the following method using a tensile tester (manufactured by Shimadzu Corporation). First, in the paper diaper 10 (M size of a general adult paper diaper, the horizontal dimension W1 is 600mm), the seam 25 is peeled off to separate the front and rear waistline sheets 14, 15 and joins the front and back waistline via an adhesive After the front and rear end portions 19A, 19B of the absorbent sheet 16 on the inner surface of the sheets 14 and 15 are removed from the waistline sheets 14, 15 respectively, they are removed from the front and back waistline sheets. 14, 15 cut and arrange the respective stretchable regions of the front and lower waist elastic bodies 20B, 23B with a width of 140 mm, and used them as samples. Next, hold one end of the sample with a movable jig (upper jig) and hold the other end with a fixed jig (lower jig), and measure the elongation stress (N) at the following time point, that is, from between the jigs Move the movable jig upward at a speed of 300mm/min when the distance is 300mm until the distance between the jigs becomes 425mm. Reverse the action. After approaching until the distance between the jigs becomes 300mm, reverse the action again until The distance between the clamps becomes the elongation stress (N) at 425 mm.

As a result of this measurement, the elongation stress of the stretchable region where the lower back waist elastic body 23B is arranged is about 16 N/m, and the stretch stress of the stretchable region where the lower back waist elastic body 20B is arranged is about 21 N/m. In addition, the results of the same measurement method showed that in the L size diaper 10, the former is about 3.5 N/m and the latter is about 10 N/m. In the XL size diaper 10, the former is about 18 N/m and the latter is about 23N/m.

In the conventional paper diaper 110, since the front lower waist elastic body 120B is cut and removed in the existing area where the front end 119A of the absorbent sheet 116 exists, the aforementioned technical effect of the paper diaper 10 cannot be obtained. Furthermore, in the conventional paper diaper 110, the front lower waist elastic body 120B crosses the front end 119A of the absorbent sheet 116, and the lower back waist elastic body disposed on the rear waist sheet crosses the rear end of the absorbent sheet 116 In the case of mutual elongation, the same effect as the paper diaper 10 cannot be obtained.

As shown in Figure 2 again, as before, the liquid-absorbing core material 35 The two side edges 35c and 35d of the two sides have a shape protruding and curved toward the inside in the transverse direction X, and the center portion of the crotch region 13 is the farthest away from the base end 62 of the leak-proof side 60. The liquid-absorbent core material 35 is semi-rigid with higher rigidity than the sheet member, and when the liquid-absorbent core material 35 is located near the base end 62, the base end 62 may be affected by the rigidity and may not easily stand up. However, since the base end 62 is the furthest away from the liquid-absorbent core 35 in the center of the crotch region 13 where body fluids are most likely to accumulate, it does not prevent the leakage prevention side 60 from standing up and can prevent the body fluids from leaking laterally.

Furthermore, in this embodiment, the outer joint area 46 located on the side extension 61 and the inner joint area 47 of the base end 62 forming the leak-proof side 60 are separated from each other in the lateral direction X. In this way, by separating the outer joint region 46 from the base end 62, the side extension 61 and the leak-proof side 60 are not affected by mutual extension and contraction, and can stand independently. However, as long as the side extension 61 and the leak-proof side 60 can stand independently of each other, in order to simplify the manufacturing process of the diaper 10, the outer joint area 46 and the inner joint area 47 can also be coated in a continuous manner. On the covering sheet 32.

As shown in FIG. 4 again, since the absorbent body 33 has a small water retention capacity, its thickness is thin, and the side extension 61 having a multilayer structure is located on both sides of the absorbent sheet 16 where the leg elastic body 65 is arranged The thickness of the absorbent sheet 16 is larger than the thickness of the central portion. Specifically, the thickness dimension D1 of the central portion of the absorbent sheet 16 is approximately 2.0 to 4.0 mm, and the thickness dimension D2 of the both sides is approximately 5.0 to 7.0 mm. Here, the central part of the absorbent sheet 16 refers to The area where the absorber 33 is placed and the part between the two sides (the part where the side extension 61 is placed) means the area including at least the point where the longitudinal centerline P and the lateral centerline Q intersect.

In this way, since the thickness dimension D2 of the both sides of the absorbent sheet 16 is larger than the thickness dimension D1 of the central part, it falls on the leak-proof side 60 and is located on the skin facing side of the front and rear waist regions 11, 12 The front and rear end portions 19A and 19B form a space surrounded by both sides between the body and the central portion of the absorbent sheet 16 for air to flow. Therefore, it is possible to prevent the diaper 10 from being stuffy. In addition, the underwear 210 is formed by attaching an elastic sheet 221 different from the underwear body to the edge of the leg opening, so that the thickness of the edge of the leg opening is formed to be larger than the thickness of the central portion of the crotch region. Specifically, the thickness of the central part of the crotch region is 0.8 to 1.2 mm, and the thickness of the edge of the leg opening is 1.2 to 1.9 mm. Therefore, the paper diaper 10 and the underwear 210 are both in the crotch area, and the thickness of the edge of the foot opening is thicker than the thickness of the central part. Therefore, the paper diaper 10 is easy to be familiar with the underwear and easily conform to its movement.

In addition, in the conventional paper diaper 110, since the absorbent body has a large water retention capacity, it is thick and does not have a structure such as the side extension 61 of the paper diaper 10. Therefore, the absorbent sheet 116 is provided with The thickness dimension of the central portion of the crotch region 113 of the absorbent body is formed to be larger than the thickness dimension of the both sides of the central portion on both sides in the lateral direction where the absorbent body is not arranged. Specifically, the thickness dimension of the center part of the crotch region 113 of the absorbent sheet 116 is 7.0 to 10.0 mm, and the thickness dimension of both side parts is 1.0 to 3.0 mm. So, in the past diapers 110, they are different from panties 210. At the same time, the thickness of the central portion of the absorbent sheet 116 is thicker than that of the side portions, so it is not easy to be familiar with the underwear 210 and not easy to follow its movements.

In the case of adults using paper diapers, in daily life, you want to make the paper diapers not recognizable in appearance. From the viewpoint of wearing the paper diapers on the inside of the clothes, in order to suppress the thickness dimension of the paper diapers 10 only possible, the liquid absorption It is better to reduce the thickness and/or width of the core material. However, when the thickness dimension of the liquid-absorbent core material is reduced, the amount of body fluid absorption may decrease and the body fluid may not be sufficiently retained. In the paper diaper 10 of the present embodiment, since the extending portion 31A of the inner sheet 31 extending from the side edges 35c and 35d of the liquid-absorbent core material 35 to the outside in the lateral direction X and the core material covering sheet 36 The hydrophilic layer 50 constituted by the extension portion 36A extends along the side edges 16c, 16d of the absorbent sheet 16 to the side extension portion 61. Therefore, the hydrophilic layer 50 can be The body fluid absorbed by the core material 35 diffuses or directly absorbs the body fluid that has not been absorbed by the liquid-absorbent core material 35, and the body fluid that exceeds the liquid absorption amount of the liquid-absorbent core material 35 can be temporarily retained. In addition, since the side extension 61 stably abuts the body, there is no possibility that the side edges of the crotch region 13 are sandwiched by the crotch during wearing, and the buttocks are not exposed.

<Method for measuring the thickness dimension of absorbent sheet>

The thickness dimension D1 of the center part of the absorbent sheet and the thickness dimension D2 of both sides are measured with a thickness meter (PEACOCK DIAL THICKNESS GAUSE diameter 50mm; measuring pressure 3g/cm ² ).

Each structure of the disposable wearing article constituting the present invention In addition to the materials described in this specification, the component members can use various conventional materials generally used in the field of such articles without limitation. In addition, the terms "1st", "2nd" "3rd" and "4th" used in this specification and the scope of patent application are only used to distinguish the same elements, positions, etc.

10‧‧‧Pants type wearing articles for adults (diapers)

11‧‧‧Front waist area

12‧‧‧Rear waist area

13‧‧‧Crotch area

14‧‧‧Front waist thin body

15‧‧‧Back waist thin body

16‧‧‧Absorbent sheet

16a‧‧‧Front and rear edges

19A‧‧‧Front end

19C‧‧‧Middle

20‧‧‧Front waist elastic body (waist elastic body)

20A‧‧‧Front upper waist elastic body

20B‧‧‧Front and lower waist elastic body

25‧‧‧Side seam

26‧‧‧Waist opening

27‧‧‧Foot opening

60‧‧‧Leak-proof side

61‧‧‧Side extension

Claims (7)

A shorts-type wearing article, having a longitudinal direction and a lateral direction, and comprising: a front waistline sheet forming a front waistline area; a back waistline sheet forming a back waistline area; and between the aforementioned front and back waistline sheets An adult pants-type wearing article with an absorbent sheet in the crotch region and an absorbent, characterized in that the absorbent system has a liquid-absorbing core, and the absorbent body has a water retention capacity of 150 to 400 g. The skin facing side also has a pair of leak-proof side edges extending in the longitudinal direction, and the leak-proof side edge has the lateral edge of the liquid-absorbent core material extending in the longitudinal direction outside the lateral direction The base end portion of the base end portion and the free portion provided with a plurality of side elastic bodies extending in the longitudinal direction, and the side extension portion extending in the longitudinal direction is located in the lateral direction of the base end portion of the leak-proof side On the outside, the side extension portion is provided with a leg elastic body, and the dimension in the thickness direction of the side extension portion is larger than the thickness direction of the central portion of the absorbent sheet on which the liquid-absorbent core is placed The size is large. For example, the shorts-type wearing article of claim 1, wherein the thickness of the central portion of the absorbent sheet is 2.0 to 4.0 mm, and the thickness of the side extension portion of the absorbent sheet is 5.0 to 7.0mm. Such as the shorts-type wearing article of item 1 or 2 of the scope of patent application, wherein, in the non-extended state, from the upper edge of the front waistline sheet to the lower The length of the end edge, that is, the first size, is smaller than the length from the lower end edge of the front waistline sheet to the lower end of the absorbent sheet, that is, the second size. The first size and the second size The total size is 250~290mm. Regarding the length dimension in the lateral direction of the portion overlapping the absorbent sheet of the lower end edge of the front waistline sheet, that is, the third dimension, the fourth dimension is 45 to 80% of the size. The fourth dimension is the dimension in the lateral direction of one of the non-overlapping portions of one of the pair of non-overlapping portions located outside the lateral direction of the overlapping portion in the lower end edge. The extension stress of the stretch region of the front waist elastic body extending in the lateral direction is higher than the stretch stress of the stretch region where the rear waist elastic body extending in the lateral direction is arranged in the rear waist region. For example, the shorts-type wearing article of item 3 of the scope of patent application, wherein, in the extended state, the first size is 180 to 210 mm, the second size is 170 to 190 mm, the third size is 190 to 210 mm, and the first size is 190 to 210 mm. 4The size is 170 to 270mm. For example, the shorts-type wearing article of item 1 or 2 in the scope of patent application, wherein the side extension portion has: a hydrophilic layer; and a hydrophobic layer covering the hydrophilic layer in the thickness direction. For example, the shorts-type wearing article of the 5th item of the scope of patent application, which further has a liquid-permeable inner sheet covering the side facing the skin of the absorbent body, and the hydrophilic layer is provided from both sides of the absorbent body. Fate The extended portion of the inner sheet that extends outward in the lateral direction in one step. Such as the shorts-type wearing article of item 5 of the patent application, wherein the absorbent system has the liquid absorbent core material and a core covering sheet covering the liquid absorbent core material, and the hydrophilic layer has the absorbent The two side edges of the liquid core material further extend outward in the lateral direction, and the core material covers the extended portion of the sheet.

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