JP2018061839A - Disposable diaper and method of manufacturing disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper in which a joining part of both end parts in a waistline direction of each exterior part can be reliably broken.SOLUTION: An exterior body 12 includes an upper part region 12U and a lower part region 12D. The upper part region 12U includes an upper part elastic member 15U, and the lower part region 12D includes a lower part elastic member 15D. The upper part region 12U includes: an inner side elastic part 27 which is configured by sandwiching the upper part elastic member 15U by sheets and is positioned inside an absorbent body 16; and an outer side sheet part 26 which is positioned outside the absorbent body 16 to face the inner side elastic part 27. The lower part region 12D includes an outer side elastic part 28 that is configured by sandwiching the lower part elastic member 15D by the sheets and is positioned outside the absorbent body 16. The upper part region 12U and the lower part region 12D are overlapped with each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a disposable diaper whose exterior part includes an elastic member, and a method for manufacturing a disposable diaper.

  The disposable diaper has a first exterior part that constitutes the front body, a second exterior part that constitutes the rear body, and an absorptivity in which the front end part is joined to the first exterior part and the rear end part is joined to the second exterior part. And a main body. A 1st exterior part and a 2nd exterior part bend an absorptive main body into two, and comprise the waist part in an upper part by joining the both ends of the waist part direction of each exterior part, and a lower end part The leg-hole opening is configured. In the first exterior part and the second exterior part, elastic members such as rubber thread are arranged in the waistline direction along the waistline part.

  In the disposable diaper of patent document 1, the pocket which made the crotch part side the opening end is comprised in the inner surface which contacts skin. A pocket accommodates excrement and suppresses abdominal leak and back leak of excrement. In this disposable diaper, the first exterior part and the second exterior part are bonded to the inner surface of the absorbent main body, and at this time, an adhesive is applied to the inner surface of the absorbent main body so as to form a pocket. Is done. Specifically, an adhesive is applied to the inner surface of the absorbent main body so as to form a concave shape with the open end on the crotch side, and the exterior portion is bonded to this bonding region. Thereby, between the absorptive main body and the exterior part, a crevice-shaped pocket is formed with the crotch part side as an open end.

Japanese Patent No. 5457828

  In this type of disposable diaper, it is desired that the joints at both ends in the waistline direction of each exterior part be surely broken when removed from the body after use. Moreover, the disposable diaper of patent document 1 is comprised, and the exterior part pinched | interposed the elastic member with the nonwoven fabric, and the exterior part in which the elastic member was arrange | positioned directly adhere | attached with the inner surface of an absorptive main body. For this reason, in the adhesion | attachment area | region of an absorptive main body and an exterior part, the elasticity of an exterior part is falling and the adhesiveness with skin becomes low.

  An object of this invention is to provide the manufacturing method of the disposable diaper which made it possible to break | disconnect reliably the junction part of the both ends of the trunk periphery direction of each exterior part, and a disposable diaper.

  A disposable diaper for solving the above problems includes a first exterior part constituting the front body, a second exterior part constituting the back body, and both end parts in the front-rear direction are the first exterior part and the second exterior part. A disposable diaper comprising: an absorptive main body provided with an adherend portion that overlaps; and both ends of the first exterior portion in the waistline direction and both ends of the second exterior portion in the waistline direction; And at least one of the second exterior portions includes an upper region and a lower region located on the crotch side from the upper region. The upper region includes an upper elastic member that expands and contracts in the waist direction, and the lower region includes a lower elastic member that expands and contracts in the waist direction. The upper region is an inner elastic part configured by sandwiching the upper elastic member with a sheet, and the inner elastic part located on the skin side from the absorbent main body, and the skin from the absorbent main body It is an outer side on the opposite side, and includes at least an outer sheet portion positioned to face the inner elastic portion. The lower region is an outer elastic portion configured by sandwiching the lower elastic member with a sheet, and includes the outer elastic portion positioned outside the absorbent main body, and the upper region and the lower region overlap each other. ing.

  According to the said structure, an inner side elastic part is adhere | attached not on an absorptive main body but on an outer sheet | seat part. Thus, since the adhesion part of an inner side elastic part and an absorptive main body is lose | eliminated, an upper elastic member can expand / contract freely in an exterior part. Therefore, in the diaper, it is possible to prevent the adhesion with the skin from being improved and the followability to the wearer's movement from being deteriorated. Further, in the lower region, the outer elastic portion is bonded to the outer surface of the bonded portion. Since the upper region and the lower region overlap each other, when the joint between the both ends of the first exterior part in the waistline direction and the both ends of the second exterior part in the waistline direction is broken, the lower end part and the lower part of the upper region Occurrence of lateral tearing can be suppressed at the boundary portion with the upper end portion of the region, and the joint portions at both end portions in the waistline direction of each exterior portion can be reliably broken.

The said disposable diaper WHEREIN: The lower end part of the said upper area | region and the upper end part of the said lower area | region are good also as a structure located in the same position in a boundary part.
According to the above configuration, the lower end of the upper region and the upper end of the lower region are broken when the joint between the both end portions of the first exterior portion in the waistline direction and both ends of the second exterior portion in the waistline direction is broken. The occurrence of lateral tearing can be suppressed at the boundary between the two and the joint portions at both ends in the waistline direction of each exterior portion can be reliably broken.

In the disposable diaper, the inner elastic portion is not bonded to the bonded portion, and an opening end of the bonded portion faces the crotch portion around the bonded portion with respect to the outer sheet portion. The outer elastic portion may be bonded to the adherend portion.
According to the said structure, the fold which continues in the front-back direction of an absorptive main body is formed in the skin side surface of the absorptive main body in a lower area | region according to shrinkage | contraction of an elastic member. Thereby, excrement can be induced between the inner elastic part of the upper region and the adherend by pleats. In the upper region, no pleats are formed, and excrement transmitted between the inner elastic portion and the adherend portion is less likely to return to the crotch side. That is, the absorption region of the adherend portion can be used effectively between the inner elastic portion and the adherend portion. And with skin, when an inner elastic part contacts, skin does not get wet and it becomes difficult to raise | generate a skin irritation.

In the disposable diaper, the outer sheet portion may be a series of sheets straddling the upper region and the lower region, and the upper region and the lower region may be connected to each other.
According to the said structure, since an outer sheet | seat part is provided ranging over an upper area | region and a lower area | region, reduction of a number of parts and improvement of production efficiency are realizable.

  The manufacturing method of the disposable diaper for solving the said subject is the 1st exterior part which comprises a front body, the 2nd exterior part which comprises a back body, and the both ends in the front-back direction are said 1st exterior part and said 1st In the manufacturing method of the disposable diaper which comprises the absorptive main body provided with the adherend part which overlaps with 2 exterior parts, and joined the both ends of the circumference direction of the 1st exterior part and the both ends of the circumference direction of the 2nd exterior part The at least one exterior part of the first exterior part and the second exterior part includes an upper region and a lower region located on the crotch part side from the upper region, and the upper region is in a waistline direction. An upper elastic member that expands and contracts; the lower region includes a lower elastic member that expands and contracts in the waistline direction; and the upper region is an inner elastic portion configured by sandwiching the upper elastic member with a sheet, and Sex book The inner elastic portion positioned on the inner side which is closer to the skin, the outer sheet portion positioned on the outer side opposite to the skin from the absorbent main body, and the outer elastic portion configured by sandwiching the lower elastic member with the sheet And the said outer side elastic part located outside the said absorptive main body is provided. And in the lower region, sandwiching the lower elastic member with a sheet to form the outer elastic part, and arranging and bonding the adherend part across the outer elastic part and the outer sheet part, The upper elastic member is sandwiched between sheets to form the inner elastic portion, the inner elastic portion is overlapped with the outer sheet portion from above the bonded portion, and the bonded portion is connected to the outer sheet portion and the outer sheet portion. The step of sandwiching between the inner elastic portion and bonding the outer sheet portion and the inner elastic portion, and the both ends of the first exterior portion in the waistline direction and the both ends of the second exterior portion in the waistline direction are joined. A process. Then, the upper region and the lower region are overlapped.

In the above-mentioned disposable diaper manufacturing method, the lower end portion of the upper region and the upper end portion of the lower region may be located at the same position in the boundary portion.
In the manufacturing method of the disposable diaper, the inner elastic portion is non-adhered to the adherend portion, and an opening end of the adherend portion is around the adherend portion with respect to the outer sheet portion. You may make it adhere | attach so that it may face.

  In the manufacturing method of the disposable diaper, the outer sheet portion may be a series of sheets straddling the upper region and the lower region, and the upper region and the lower region may be connected.

  According to the present invention, it is possible to surely break the joint portions at both ends in the waistline direction of each exterior portion.

The perspective view of the underpants type disposable diaper in 1st Embodiment which materialized the absorptive main part of the present invention. (A) is a top view which shows the expansion | deployment state of the underpants type disposable diaper in 1st Embodiment, (b) is aa sectional drawing of (a), (c) is an adhesion area | region of an upper area | region (a ) Is a plan view corresponding to (a), and (d) is a plan view corresponding to (a). It is a figure which shows the manufacturing process of the underpants type disposable diaper of 1st Embodiment, (a) is the figure which has arrange | positioned the lower elastic member in the outer sheet | seat part, (b) is an outer elastic part with respect to a lower elastic member. The figure which overlaps the sheet | seat which comprises, (c) is the figure which provided the adhesive layer in the outer sheet part and the outer elastic part, (d) is the figure which mounted the absorptive main body in the outer sheet part and the outer elastic part, (e) is the figure which has arrange | positioned the upper elastic member to the sheet | seat which comprises an inner side elastic part on an absorptive main body, (f) is the figure which pinched | interposed the to-be-adhered part of the absorptive main body with the outer sheet | seat part. (A) is a perspective view which shows the expansion | deployment state of the conventional underpants type disposable diaper, (b) is sectional drawing of (a). Sectional drawing of the underpants type disposable diaper in 2nd Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 2nd Embodiment, (a) is the figure which has arrange | positioned the lower elastic member in the outer sheet | seat part, (b) is an outer elastic part with respect to a lower elastic member. The figure which piles up the sheet | seat to comprise, (c) is the figure which provided the adhesive layer in the outer sheet | seat part and the outer elastic part, (d) is an inner side while mounting an absorptive main body in an outer sheet | seat part and an outer elastic part. The figure which has arrange | positioned the upper elastic member in the sheet | seat which comprises an elastic part, (e) is the figure which pinched | interposed the upper elastic member with the sheet | seat, and comprised the inner elastic part, (f) is the adherend of an absorptive main body to an inner elastic part The figure arrange | positioned to a part and an outer sheet | seat part. Sectional drawing of the underpants type disposable diaper in 3rd Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 3rd Embodiment, (a) is the figure which has arrange | positioned the lower elastic member in the outer sheet | seat part, (b) is an outer elastic part with respect to a lower elastic member. The figure which piles up the sheet | seat to comprise, (c) is the figure which provided the adhesive layer in the outer sheet part and the outer elastic part, (d) has mounted an absorptive main body in an outer sheet part and an outer elastic part, and is inner elastic The figure which overlaps the sheet | seat which comprises a part, (e) is a figure which pinches | interposes an upper elastic member with a sheet | seat, and comprises an inner elastic part, (f) is an inner elastic part on the to-be-adhered part and outer sheet part of an absorptive main body. Arranged figure. (A) is a top view which shows the expansion | deployment state of the underpants type disposable diaper in 4th Embodiment, (b) is aa sectional drawing of (a), (c) respond | corresponds to an adhesion area | region (a). FIG. Sectional drawing of the underpants type disposable diaper in 5th Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 5th Embodiment, (a) arrange | positions an upper elastic member in the upper 2nd area | region of an outer sheet | seat part, and lower elasticity in the lower 2nd area | region of an outer sheet | seat part. The figure which has arrange | positioned a member, (b) is the figure which folded the sheet | seat and pinched | interposed the upper elastic member, and the lower elastic member was fold-folded the sheet | seat, (c) is an outer sheet | seat part and an outer elastic part. The figure which provided the contact bonding layer, (d) is the figure which mounted the absorptive main body in the outside sheet part and the outside elastic part, (e) is the figure which turned up the inside elastic part, (f) is the inside elasticity The figure which folded the part and comprised the pocket. Sectional drawing of the underpants type disposable diaper in 6th Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 6th Embodiment, (a) arrange | positions an upper elastic member in the upper 2nd area | region of an outer sheet | seat part, and lower elasticity in the lower 2nd area | region of an outer sheet | seat part. The figure which arranged the member, (b) is the figure which folded the sheet | seat and pinched | interposed the upper elastic member, and the lower elastic member was folded | folded the sheet | seat, (c) is an outer sheet | seat part and an outer elastic part. The figure which provided the contact bonding layer, (d) is the figure which mounted the absorptive main body in the outside sheet part and the outside elastic part, (e) is the figure which turned up the inside elastic part, (f) is the inside elasticity The figure which folded the part and comprised the pocket. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 7th Embodiment, (a) arrange | positions an upper elastic member in the upper 1st area | region of an outer sheet | seat part, and lower elasticity in the lower 1st area | region of an outer sheet | seat part. The figure which has arrange | positioned a member, (b) is the figure which folded the sheet | seat and pinched | interposed the upper elastic member, and the lower elastic member was fold-folded the sheet | seat, (c) is an outer sheet | seat part and an outer elastic part. The figure which provided the contact bonding layer, (d) is the figure which mounted the absorptive main body in the outside sheet part and the outside elastic part, (e) is the figure which turned up the inside elastic part, (f) is the inside elasticity The figure which folded the part and comprised the pocket. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 8th Embodiment, (a) arrange | positions an upper elastic member in the upper 1st area | region of an outer sheet | seat part, and lower elasticity in the lower 1st area | region of an outer sheet | seat part. The figure which arranged the member, (b) is the figure which folded the sheet | seat and pinched | interposed the upper elastic member, and the lower elastic member was folded | folded the sheet | seat, (c) is an outer sheet | seat part and an outer elastic part. The figure which provided the contact bonding layer, (d) is the figure which mounted the absorptive main body in the outside sheet part and the outside elastic part, (e) is the figure which turned up the inside elastic part, (f) is the inside elasticity The figure which folded the part and comprised the pocket. Sectional drawing of the underpants type disposable diaper in 9th Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 9th Embodiment, (a) is the figure which has arrange | positioned the lower elastic member in the lower 2nd area | region, (b) is the figure which comprised the lower elastic part, (C) is a diagram in which an adhesive layer is provided on the outer sheet portion and the outer elastic portion, (d) is a diagram in which an absorbent main body is placed on the outer sheet portion and the outer elastic portion, and (e) is an inner elastic portion. The figure which shows the state which has arrange | positioned in the upper region equivalent part, (f) is the figure which comprised the inner elastic part in the upper area equivalent part, and comprised the pocket. Sectional drawing of the underpants type disposable diaper in 10th Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 11th Embodiment, (a) is the figure which has arrange | positioned the upper elastic member and the lower elastic member with respect to an outer side sheet | seat part, (b) is an upper elastic member and The figure which piled up the sheet | seat on the lower elastic member, (c) is the figure which provided the adhesive layer in the outer sheet | seat part and the outer elastic part, (d) mounts an absorptive main body in an outer sheet | seat part and an outer elastic part. (E) is a diagram showing a state in which the inner elastic portion is folded back, and (f) is a diagram in which the inner elastic portion is arranged in a portion corresponding to the upper region to constitute a pocket. Sectional drawing of the underpants type disposable diaper in 12th Embodiment. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 12th Embodiment, (a) is the figure which has arrange | positioned the upper elastic member and the lower elastic member with respect to an outer side sheet | seat part, (b) is an upper elastic member and The figure which piled up one inner sheet part on the lower elastic member, (c) is the figure which provided the adhesion layer in the inner sheet part and the outer elastic part, (d) is the inner sheet part and the outer elastic part The figure which mounted the absorptive main body, (e) is a figure which shows the state which folds an inner side elastic part, (f) is the figure which arrange | positioned the inner side elastic part in the upper area | region equivalent part, and comprised the pocket. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 13th Embodiment, (a) is a figure which shows the state which apply | coated the adhesive agent to the 1st adhesion area | region and 3rd adhesion area | region where a to-be-adhered part is piled up, ( (b) is a diagram showing a state in which the adherend is placed in the first and third adhesion regions, (c) is a diagram showing a state where an adhesive is applied to the second adhesion region, and (d). These are figures which show the modification of the application | coating method of the adhesive agent apply | coated to a 2nd adhesion area | region. It is a figure which shows the manufacturing process of the underpants type disposable diaper of 14th Embodiment, (a) is a figure which shows the state which apply | coated the adhesive agent to the 1st adhesion area | region and 3rd adhesion area | region where an adherend part is piled up, ( FIG. 5B is a diagram illustrating a state where an adhesive is applied to the second adhesive region in the upper first region, and FIG. 5C is a diagram illustrating a modification of the method for applying the adhesive applied to the second adhesive region. (A) is a top view which shows the expansion | deployment state of the underpants type disposable diaper in 15th Embodiment, (b) is aa sectional drawing of (a), (c) is a bonding area | region of an upper area | region (a ) Is a plan view corresponding to (a), and (d) is a plan view corresponding to (a).

With reference to FIG. 1 thru | or 24, the underpants type disposable diaper in one Embodiment which actualized the disposable diaper in this invention is demonstrated.
[First Embodiment]
As shown in FIGS. 1 and 2, a pants-type disposable diaper 10 (hereinafter simply referred to as “diaper 10”) follows a front body 10F having a shape that follows the shape of the abdomen of the human body and a back shape of the human body. A back body 10R having a shape, and a crotch 10C that connects the front body 10F and the back body 10R are provided.

  In the front body 10F, the side opposite to the crotch portion 10C constitutes a waistline portion 10W that surrounds the waistline portion of the human body, and is provided with a waistline opening 10A at the upper end. The left and right ends of the front body 10F, the left and right ends of the back body 10R, and the left and right ends of the crotch 10C constitute a pair of left and right leg openings 10L having a shape surrounding the thigh portion of the human body. doing. In addition, the left and right end portions of the front body 10F and the back body 10R in the waist direction are joint portions 11.

  2A is a plan view showing a developed state of a pants-type disposable diaper, FIG. 2B is a cross-sectional view taken along the line aa of FIG. 2A, and FIG. 2C corresponds to an adhesive region of the upper region corresponding to FIG. (D) is a plan view corresponding to (a) the adhesion region of the lower region. In FIG. 2B, the right side is the skin side of the diaper wearer.

  The waist part 10W in the front body 10F is configured by a first exterior body 12F as a first exterior part, and the waist part 10W in the rear body 10R is configured by a second exterior body 12R as a second exterior part. Hereinafter, the first exterior body 12F and the second exterior body 12R are simply referred to as an exterior body 12 collectively.

  The exterior body 12 has a rectangular shape whose longitudinal direction is the waistline direction, and is configured such that an elastic member 15 (15U, 15D) is sandwiched between sheets constituting the exterior body 12. The sheet constituting the outer package is, for example, a nonwoven fabric made of synthetic fibers made from polyethylene, polypropylene, polyester, or other thermoplastic resin, and may be a liquid-permeable sheet or liquid-impermeable sheet. Good. The elastic member 15 is an elastic body formed of one or more materials selected from natural rubber, synthetic rubber, urethane, and the like, and is formed in a thread shape, a string shape, a net shape, or a flat shape. A plurality of elastic members 15 are arranged in parallel to each other along the waistline direction.

  The first exterior body 12F and the second exterior body 12R are connected by an absorbent main body 16 constituting the crotch portion 10C. The absorptive main body 16 has a rectangular shape whose longitudinal direction is the front-rear direction. The absorbent main body 16 includes a back sheet 17 having liquid impermeability, an absorber 18, and a top sheet 19 having liquid permeability. In the diaper 10, the top sheet 19 is disposed on the inner side in contact with the wearer's skin, and the back sheet 17 is disposed on the outer side. And in the diaper 10, it has overlapped in order of the back sheet | seat 17, the absorber 18, and the top sheet 19 from the outer side. Furthermore, a non-woven fabric may be arranged on the outside of the back sheet 17 in order to improve the touch feeling.

  The material forming the back sheet 17 is, for example, a film made of polyethylene resin having liquid impermeability. The back sheet 17 is formed with a large number of fine holes to ensure air permeability. The material forming the top sheet 19 is one or more materials selected from, for example, a woven fabric, a nonwoven fabric, and a porous film. The top sheet 19 is made of, for example, a non-woven fabric having liquid permeability composed of fibers of thermoplastic resin such as polypropylene, polyethylene, polyester, and nylon and subjected to hydrophilic treatment. .

The absorber 18 has an elongated band shape so as to straddle the front body 10F, the crotch 10C, and the back body 10R. The material forming the absorbent body 18 is an absorbent material such as flap pulp, superabsorbent polymer, hydrophilic sheet, and the like. The absorbent body 18 is wrapped with a core wrap, and is disposed and joined between the back sheet 17 and the top sheet 19.
A region overlapping the exterior body 12 in the front-rear direction of the absorbent main body 16 is a bonded portion 16A to which a sheet constituting the exterior body 12 is adhered.

  The absorbent main body 16 is provided with three-dimensional gathers 21 at both ends along the front-rear direction. The three-dimensional gather 21 is configured by disposing side sheets 21S on both ends of the top sheet 19 along the front-rear direction and elastic members 21E along the front-rear direction on the side sheet 21S. Specifically, the side sheet 21 </ b> S is a long sheet body that extends in the front-rear direction including a liquid-impermeable nonwoven fabric or the like. The side seat 21S is arranged such that the front end portion overlaps with the first exterior body 12F constituting a part of the front body 10F, and the rear end portion overlaps with the second exterior body 12R constituting a part of the rear body 10R. . When the elastic member 21E contracts, the three-dimensional gather 21 rises toward the wearer's skin contact direction and is positioned around the leg opening 10L.

  As shown in FIG. 2B, in any of the exterior bodies 12 of the first exterior body 12F and the second exterior body 12R, the exterior body 12 includes an upper region 12U and a lower region 12D. In the upper region 12U, the upper elastic member 15U is disposed on the inner side of the absorbent main body 16, that is, on the top sheet 19 side, and constitutes a part of the waistline opening 10A and the waistline part 10W. In the lower region 12D, the lower elastic member 15D is disposed on the outer side with respect to the absorbent main body 16, that is, on the back sheet 17 side, and constitutes a part of the waistline portion 10W in the same manner as the upper region 12U. The front end portion and the rear end portion of the three-dimensional gather 21 are extended to a position at least overlapping with the lower region 12D on the absorbent main body 16, and here, extended to the boundary portion between the lower region 12D and the upper region 12U. The Accordingly, the three-dimensional gather 21 is pressed by the lower region 12D so as to be in close contact with the skin. The side sheets 21S constituting the three-dimensional gather 21 are folded back so as to sandwich the elastic member 21E, and the front end portion and the rear end portion of the folded back are sealed by the seal portion 23.

  Further, the upper elastic member 15U in the upper region 12U is disposed across the left and right end portions in the waistline direction between the sheets having the waistline direction as the longitudinal direction, thereby improving the adhesion with the skin. The lower elastic member 15D in the lower region 12D is also disposed across the left and right ends in the waistline direction. As shown in FIG. 2C, the lower region 12D is directly bonded to the outer surface of the bonded portion 16A in the absorbent main body 16, and fine creases are formed in the bonded portion 16A in accordance with the contraction of the lower elastic member 15D. A pleat 16B is formed so as to be attached. The pleat 16B has a groove shape extending in the vertical direction, and does not disappear even when the absorber 18 swells.

  The upper elastic member 15U forms a waist gather at a portion near the waist opening 10A of the waist portion 10W, and the lower elastic member 15D forms a shearing gather at a position adjacent to the lower side of the waist gather.

  As shown in FIG. 2B, the upper region 12U includes an inner elastic portion 27 that sandwiches the upper elastic member 15U with a sheet, and an outer sheet portion 26 that is located outside. The lower region 12D includes an outer elastic portion 28 that sandwiches the lower elastic member 15D with a sheet, an upper region 12U, and a series of outer sheet portions 26.

  The outer sheet portion 26 is a sheet that is located on the outermost side opposite to the skin and is folded inward at the waistline opening 10 </ b> A and located on the most skin side. The outer sheet portion 26 extends from the lower region 12D to the upper region 12U on the outer side, is folded back at the waistline opening 10A, and extends to the upper region 12U on the inner side. The outer sheet portion 26 is a sheet that connects the upper region 12U and the lower region 12D.

  The inner elastic portion 27 is located on the inner side with respect to the absorbent main body 16, and is configured by sandwiching the upper elastic member 15U between the outer sheet portion 26 and the sheet 27A located on the most skin side, and constitutes the upper region 12U. The surface of the inner elastic portion 27 that faces the bonded portion 16A is not bonded on the bonded portion 16A.

  The outer elastic portion 28 is located on the outer side with respect to the absorbent main body 16, and is configured by sandwiching the lower elastic member 15D between the outer sheet portion 26 and the sheet 28A, and constitutes a lower region 12D. The entire surface of the bonded portion 16A of the absorbent main body 16 is bonded to the surface of the outer elastic portion 28 facing the bonded portion 16A by the adhesive layer 25.

  As shown in FIG. 2C, that is, in the upper region 12U, in the outer sheet portion 26, the region where the outer surface of the bonded portion 16A of the absorbent body 16 is bonded becomes the first bonding region 22A, and the first bonding is performed. A region around the region 22A to which the sheet 27A of the inner elastic portion 27 is bonded becomes a second bonding region 22B. The second bonding region 22B has a concave shape toward the crotch 10C side when the bonded portion 16A of the absorbent main body 16 is disposed in the first bonding region 22A. In the inner portion of the concave shape, the inner elastic portion 27 becomes a non-adhesive portion with respect to the inner surface on the skin side of the bonded portion 16A. Thereby, a pocket 30 is formed on the adherend portion 16A between the sheet 27A of the inner elastic portion 27 and the absorbent main body 16. The pocket 30 has an open end on the crotch 10C side and is configured to accommodate excrement that moves in the abdomen or back direction. The second adhesion region 22B includes a belt-like region 34 having a predetermined width between the waistline opening 10A and the front-rear direction tip portion of the adherend portion 16A, and excreta accommodated in the pocket 30 opens to the waistline. Leaking toward the portion 10A is suppressed.

  Note that the outer sheet portion 26 and the sheet 27 </ b> A, which are the skin-side sheet portions constituting the pocket 30, are preferably made of hydrophobic sheets because they are portions that contain excrement. Thereby, it can suppress that the excretion in the pocket 30 oozes out to the skin side.

  As shown in FIG. 2 (d), in the lower region 12D, the outer elastic portion 28 has a third bonded region 22C that is bonded to the outer surface of the bonded portion 16A of the absorbent main body 16. As described above, the outer elastic portion 28 is directly bonded to the outer surface of the bonded portion 16 </ b> A, whereby the pleat 16 </ b> B is formed on the crotch lower side than the first bonding region 22 </ b> A constituting the pocket 30.

  Next, the manufacturing method of the diaper 10 is demonstrated. As shown in FIG. 3A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 corresponding to the upper region 12U and a lower region equivalent portion 32 corresponding to the lower region 12D. In the lower region equivalent portion 32, the lower elastic member 15D is disposed in an extended state. As shown in FIG. 3B, an adhesive 33 such as a hot melt adhesive is applied to the lower region equivalent portion 32, and the sheet 28 </ b> A constituting the outer elastic portion 28 is bonded. Alternatively, the lower elastic member 15 </ b> D coated with the adhesive 33 is disposed in the lower region equivalent portion 32, and the sheet 28 </ b> A is overlaid on the lower region equivalent portion 32. Accordingly, the lower elastic member 15D is sandwiched between the outer sheet portion 26 and the sheet 28A, and the outer elastic portion 28 is configured in the lower region equivalent portion 32 of the outer sheet portion 26.

  As shown in FIG. 3C, the first adhesive region 22A in the upper region equivalent portion 31 and the third adhesive region 22C in the lower region equivalent portion 32 and the second adhesive region 22B in the upper region equivalent portion 31 are An adhesive layer 25 is formed. As shown in FIG. 3 (d), the adherend 16 </ b> A of the absorbent main body 16 is placed across the upper region equivalent portion 31 and the lower region equivalent portion 32.

Specifically, in the upper region equivalent portion 31, the bonded portion 16 </ b> A is bonded to the first bonding region 22 </ b> A of the outer elastic portion 28. Further, in the lower region equivalent portion 32, the bonded portion 16A is bonded to the third bonding region 22C continuous with the first bonding region 22A.
And the sheet | seat 27A which comprises the inner side elastic part 27 is adhere | attached with respect to the 2nd adhesion area | region 22B of the upper area | region equivalent part 31 from on the to-be-adhered part 16A. The sheet 27A is not bonded to the bonded portion 16A.

  Here, the same adhesive is applied to the first adhesive region 22A and the third adhesive region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second adhesive region 22B to which the sheet 27A is bonded at once. You may do it. Moreover, you may make it apply | coat an adhesive agent with a different adhesive agent and a different application | coating method.

  The first bonding region 22A and the third bonding region 22C are regions to which the bonded portion 16A is bonded, and thus are preferably bonded firmly, and the second bonding region 22B is a portion constituting the waistline portion 10W. Therefore, in order to improve the feeling of wearing, it is preferable to bond them so as not to impair elasticity or flexibility.

  Therefore, the first adhesive region 22A and the third adhesive region 22C use a first adhesive such as a hot melt adhesive having a high adhesive strength, and the second adhesive region 22B has a hot melt having a lower adhesive force than the first adhesive. A second adhesive such as an adhesive may be used. Thereby, the first bonding region 22A and the third bonding region 22C can firmly bond the bonded portion 16A, and the second bonding region 22B bonds the sheet 27A so as not to impair elasticity or flexibility. can do.

  Even in the case of using the same adhesive (which may be either the first adhesive or the second adhesive), the first adhesive region 22A, the third adhesive region 22C, and the second adhesive region 22B Similar effects can be obtained by varying the amount of adhesive applied. That is, the first adhesive region 22 </ b> A and the third adhesive region 22 </ b> C can adhere the adhesive part 16 </ b> A to the outer sheet part 26 by applying an adhesive to the entire surface using a roller. When a roller is used, the adhesive can be applied cleanly on the edge portion. On the other hand, the second adhesive region 22B may be applied using a spray or the like to reduce the amount of adhesive. In the second adhesive region 22B, the adhesive may be applied in a spiral shape or a stripe shape. By such a method, the amount of adhesive to be applied is reduced, and the second adhesive region 22B can adhere the sheet 27A so as not to impair elasticity or flexibility.

  As shown in FIG. 3E, on the sheet 27A, the upper elastic member 15U is disposed in an extended state, and an adhesive such as a hot melt adhesive is applied. As shown in FIG. 3F, the outer sheet portion 26 is folded in half and bonded to the sheet 27A. Alternatively, the upper elastic member 15U to which the adhesive is applied is disposed on the sheet 27A, and the outer sheet portion 26 is folded in half and bonded to the sheet 27A. Accordingly, the upper elastic member 15U is sandwiched between the outer sheet portion 26 and the sheet 27A. In the upper region equivalent portion 31, the inner elastic portion 27 is disposed on the inner side with respect to the absorbent main body 16. The inner elastic portion 27 is not bonded to the bonded portion 16A, and a pocket 30 having an open end on the crotch portion side is formed between the bonded portion 16A and the inner elastic portion 27.

  The first exterior body 12F and the second exterior body 12R are bonded to the absorbent main body 16 through the steps described above. Thereafter, both end portions in the waistline direction of the first exterior body 12F and both end portions in the waistline direction of the second exterior body 12R are joined to form the joint portion 11.

As described above, according to the first embodiment, the effects listed below can be obtained.
(1) As shown in FIGS. 4A and 4B, in the conventional pants-type disposable diaper, the exterior body 12 is directly bonded to the absorbent main body 16 by the bonding region 24. Therefore, in the conventional diaper, the degree of freedom of expansion and contraction of the elastic member 15 is reduced by integrating the absorbent main body 16 and the outer package 12 in the bonding region 24 between the absorbent main body 16 and the outer package 12. Further, the adhesion with the skin is deteriorated, and the followability to the movement of the wearer is deteriorated.

  On the other hand, in the upper region 12U of the diaper 10, the absorbent main body 16 and the inner elastic portion 27 are not directly bonded, but the inner elastic portion 27 is bonded to the outer sheet portion 26. Thus, the upper elastic member 15 </ b> U can freely expand and contract in the exterior body 12 by eliminating the direct adhesion portion between the exterior body 12 and the absorbent body 16. Therefore, in the diaper 10, adhesiveness with skin improves and it can suppress that the followable | trackability with respect to a wearer's motion worsens. As a result, leakage from the waistline can be suppressed.

  (2) In the upper region 12U, the inner elastic portion 27 and the absorbent main body 16 are not directly bonded. Therefore, it can suppress that the absorptive main body 16 shrink | contracts by shrinkage | contraction of the upper elastic member 15U of the inner side elastic part 27. FIG. Therefore, the touch can be improved.

  (3) In the lower region 12 </ b> D, the outer elastic portion 28 is disposed on the outer side with respect to the absorbent main body 16 and directly bonded to the adherend portion 16 </ b> A of the absorbent main body 16. Accordingly, in the adherend portion 16A and the peripheral portion thereof, folds 16B are formed on the skin-side surface of the absorbent main body 16 so as to continue in the front-rear direction of the absorbent main body 16 in accordance with the contraction of the lower elastic member 15D. Thereby, in the diaper 10, excrement can be guide | induced to the pocket 30 by the pleat 16B. The pleat 16B can be reliably formed by the entire surface of the outer elastic portion 28 being bonded to the bonded portion 16A.

  (4) In the upper region 12U, the folds 16B are not formed, and excrement transmitted between the inner elastic portion 27 and the adherend portion 16A is absorbed by the absorbent main body 16 in the pocket 30 and returns to the crotch portion 10C side. It becomes difficult. That is, the absorption region of the adherend portion 16A can be used effectively between the inner elastic portion 27 and the adherend portion 16A. And with skin, when the inner side elastic part 27 contacts, skin does not get wet and it becomes difficult to raise | generate a skin irritation.

  (5) Around the pocket 30, the outer sheet portion 26 and the sheet 27A of the inner elastic portion 27 are directly bonded, and the second bonding region 22B has a large area. Therefore, it can suppress that excrement leaks from an adhesion field rather than a conventional product. The second adhesive region 22B also includes a belt-like region 34 between the waistline opening 10A and the pocket 30. The pocket 30 can suppress the excrement accommodated in the pocket 30 from leaking toward the waistline opening 10 </ b> A by the belt-shaped region 34.

  (6) The pocket 30 has the same size as the width of the absorbent main body 16. That is, a part of the adherend portion 16A is not used as an adhesion region. Therefore, it can suppress that the pocket 30 becomes small.

(7) Since the absorbent main body 16 can be covered with the outer sheet portion 26, the design can be improved.
(8) Since the series of outer sheet portions 26 are provided across the upper region 12U and the lower region 12D, it is possible to reduce the number of parts and improve the production efficiency.

  (9) The upper region 12U and the lower region 12D are configured in series by the outer sheet portion 26, and formed when the upper region 12U and the lower region 12D are divided into two at the boundary portion in the vicinity of the joint portion 11 on both the left and right sides. No gap is generated. Therefore, even when the diaper 10 is worn, the leg does not enter the gap between the upper region 12U and the lower region 12D, and it is possible to prevent the diaper 10 from becoming difficult to wear.

  (10) When the diaper 10 is removed, the joint 11 is broken. Also in the junction part 11, since it is not isolate | separated into the upper area | region 12U and the lower area | region 12D, the junction part 11 can be broken by one operation | work.

  (11) Even if the upper region 12U is not adhered to the absorbent main body 16, the outer sheet portion 26 located on the most skin side of the upper region 12U and the outer sheet portion 26 located on the outermost side are a series of sheets. It consists of. Therefore, it is possible to suppress excrement from leaking between the absorbent main body 16 and the upper region 12U to the outside.

[Second Embodiment]
As shown in FIG. 5, the diaper 40 of 2nd Embodiment has the structure by which the outer side sheet | seat part 26 was located in the outermost side, and the upper elastic member 15U was pinched | interposed with a series of sheet | seats 27A. In FIG. 5, the right side is the skin side of the diaper wearer. Hereinafter, the manufacturing method of the diaper 40 is demonstrated.

  As shown in FIG. 6A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The lower elastic member 15D is disposed in the lower region equivalent portion 32 in an extended state. As shown in FIG. 6B, an adhesive 33 such as a hot melt adhesive is applied to the lower region equivalent portion 32, and the sheet 28A constituting the outer elastic portion 28 is adhered. Alternatively, the lower elastic member 15 </ b> D coated with the adhesive 33 is disposed in the lower region equivalent portion 32, and the sheet 28 </ b> A is overlaid on the lower region equivalent portion 32. Accordingly, the lower elastic member 15D is sandwiched between the outer sheet portion 26 and the sheet 28A, and the outer elastic portion 28 is configured in the lower region equivalent portion 32 of the outer sheet portion 26.

  As shown in FIG. 6C, an adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 6D, the adherend 16A of the absorbent main body 16 is placed across the first adhesive region 22A of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The

  Here, a series of sheets 27A sandwiching the upper elastic member 15U is prepared. The sheet 27 </ b> A here has a size corresponding to the upper region corresponding portion 31 when folded in half to sandwich the upper elastic member 15 </ b> U. The upper elastic member 15U is disposed on the seat 27A in an extended state. As shown in FIG. 6E, the sheet 27A is folded in half after an adhesive such as a hot melt adhesive is applied, and sandwiches the upper elastic member 15U. Alternatively, the upper elastic member 15U to which the adhesive is applied is disposed on the sheet 27A, and the sheet 27A is bent in half. Thereby, the inner side elastic part 27 is comprised. As shown in FIG. 6F, the inner elastic portion 27 is bonded to the second bonding region 22B of the outer sheet portion 26 from above the bonded portion 16A. Therefore, the inner elastic portion 27 is not bonded to the bonded portion 16A. Thereby, in the upper region equivalent portion 31, the inner elastic portion 27 is disposed inside the absorbent main body 16. The inner elastic portion 27 is not bonded to the bonded portion 16A, and a pocket 30 having an open end on the crotch portion side is formed between the bonded portion 16A and the inner elastic portion 27.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second bonding region 22B to which the inner elastic portion 27 is bonded are bonded at the same time. An agent may be applied.

  Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the inner elastic portion 27 is bonded to the second bonding region 22B. Is adhered with a low adhesive force. Accordingly, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the inner elastic portion 27 has elasticity or flexibility with respect to the second bonding region 22B. It can be bonded so as not to damage.

  The first exterior body 12F and the second exterior body 12R are bonded to the absorbent main body 16 through the steps described above. Thereafter, both end portions in the waistline direction of the first exterior body 12F and both end portions in the waistline direction of the second exterior body 12R are joined to form the joint portion 11.

In the diaper 40 as described above, the following effects can be further obtained.
(12) Since the upper elastic member 15U is sandwiched by one sheet 27A, it is possible to reduce the number of parts and improve the production efficiency.

[Third Embodiment]
As shown in FIG. 7, the diaper 50 of the third embodiment sandwiches the upper elastic member 15U between two separate sheets 27A and 27B, and the two sheets 27A and 27B are both outer sheet portions 26. And are separate. In FIG. 7, the right side is the skin side of the diaper wearer. Hereinafter, the manufacturing method of the diaper 50 is demonstrated.

  As shown in FIG. 8A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The lower elastic member 15D is disposed in the lower region equivalent portion 32 in an extended state. As shown in FIG. 8B, an adhesive 33 such as a hot-melt adhesive is applied to the lower region equivalent portion 32, and a sheet 28A constituting the outer elastic portion 28 is bonded. Alternatively, the lower elastic member 15 </ b> D coated with the adhesive 33 is disposed in the lower region equivalent portion 32, and the sheet 28 </ b> A is overlaid on the lower region equivalent portion 32. Thus, the lower elastic member 15D is sandwiched between the outer sheet portion 26 and the sheet 28A, and the outer elastic portion 28 is configured in the outer sheet portion 26 in the lower region equivalent portion 32.

  As shown in FIG. 8C, an adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 8D, the adherend 16A of the absorbent main body 16 is placed across the first adhesion region 22A of the upper region equivalent portion 31 and the third adhesion region 22C of the lower region equivalent portion 32. The Here, a sheet 27A having the size of the upper region equivalent portion 31 is prepared. Then, the sheet 27A is bonded to the second bonding region 22B of the outer sheet portion 26 from above the bonded portion 16A. Therefore, the sheet 27A is not bonded to the bonded portion 16A.

  Here, the first adhesive region 22A and the third adhesive region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second adhesive region 22B to which the sheet 27A is bonded are applied with the same adhesive at a time. You may make it apply | coat.

  Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the sheet 27A is bonded to the second bonding region 22B. It is made to adhere with low adhesive force. As a result, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the sheet 27A does not lose elasticity or flexibility to the second bonding region 22B. Can be adhered.

  As shown in FIG. 8E, the sheet 27A is arranged with the upper elastic member 15U extended, and an adhesive such as a hot melt adhesive is applied thereto. As shown in FIG. 8 (f), thereafter, a further sheet 27 </ b> B having the size of the upper region equivalent portion 31 is overlaid, and the upper elastic member 15 </ b> U is sandwiched between the sheet 27 </ b> A and the sheet 27 </ b> B. Alternatively, the upper elastic member 15U coated with an adhesive is disposed on the sheet 27A, and the sheet 27B is overlaid. Thereby, the inner side elastic part 27 is comprised. Thereby, in the upper region equivalent portion 31, the inner elastic portion 27 is disposed inside the absorbent main body 16. The inner elastic portion 27 is not bonded to the bonded portion 16A, and a pocket 30 having an open end on the crotch portion side is formed between the bonded portion 16A and the inner elastic portion 27. become.

  The first exterior body 12F and the second exterior body 12R are bonded to the absorbent main body 16 through the steps described above. Thereafter, both end portions in the waistline direction of the first exterior body 12F and both end portions in the waistline direction of the second exterior body 12R are joined to form the joint portion 11.

In the diaper 50 as described above, the following effects can be further obtained.
(13) Since the outer sheet portion 26, the sheet 27A, and the sheet 27B are used separately, each of the outer sheet portion 26, the sheet 27A, and the sheet 27B can be used effectively. For example, sheets of different materials can be used for the outer sheet portion 26, the sheet 27A, and the sheet 27B. In this case, as an example, a soft sheet can be used for the sheet 27B in contact with the skin, and a hard sheet having high water resistance and durability can be used for the outer sheet portion 26 and the sheet 27A.

[Fourth Embodiment]
Fig.9 (a) is a top view which shows the expansion | deployment state of the underpants type disposable diaper in 4th Embodiment, (b) is aa sectional drawing of (a), (c) is an adhesion area | region (a). It is a top view shown corresponding to. In FIG. 9B, the right side is the skin side of the diaper wearer.

As shown in FIGS. 9A and 9B, the pants-type disposable diaper 60 has an outer sheet portion 26 positioned on the outermost side as the first exterior body 12F, the absorbent main body 16, and the second exterior body 12R. It is arranged over. The outer sheet portion 26 is formed with a pair of cut-out end portions 61 having a semicircular arc shape that constitutes the leg opening 10L at the center of the left and right sides along the front-rear direction. . In this case, the adhesion region of the outer sheet portion 26 is the adherend portion 16A and the inner elastic portion 27 (regions 22A and 22B) in the upper region 12U. Further, in the outer elastic portion 28, the part to be bonded 16A (region 22C), and the portion of the crotch portion 10C of the absorbent main body 16 between the lower region 12D in the first exterior body 12F and the lower region 12D in the second exterior body. (22D region).
In the pants-type disposable diaper 60 configured as described above, the same effects as the above-described pants-type disposable diaper can be achieved.

  In addition, the adhesion area | region of the outer side sheet | seat part 26 may be made to apply | coat the same adhesive agent at once, and you may make it apply | coat an adhesive agent with a different adhesive agent and a different application | coating method according to an area | region. When applying an adhesive by a different adhesive or a different application method, the region 22A, the region 22C, and the region 22D of the outer sheet portion 26 to be bonded to the absorbent main body 16 are bonded with high adhesive force. The region 22B bonded to the sheet 27A of the inner elastic portion 27 is bonded with a low adhesive force. Accordingly, the outer sheet portion 26 can be firmly bonded at a portion overlapping the absorbent main body 16, and can be bonded at a portion constituting the waistline portion 10W so as not to lose elasticity or flexibility.

[Fifth Embodiment]
As shown in FIG. 10, in the diaper 70 of the fifth embodiment, one outer sheet portion 26 sandwiches the upper elastic member 15U and the lower elastic member 15D. Further, the outer sheet portion 26 is located on the outermost side opposite to the skin, and is folded back at the waistline opening 10A and located on the most skin side. At the outermost side, it extends from the lower region 12D to the upper region 12U, and is bent inward at the end of the outer elastic portion 28 on the crotch portion 10C side. On the inner side on the skin side, the inner elastic portion 27 is bent inward at the end portion on the crotch 10C side. In FIG. 10, the right side is the skin side of the diaper wearer. Hereinafter, the manufacturing method of the diaper 70 is demonstrated.

  As shown in FIG. 11A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A, an upper second region 31B, and an upper third region 31C. The upper first region 31A and the upper second region 31B serve as sheets that sandwich the upper elastic member 15U. The upper third region 31 </ b> C is a region located outside the absorbent main body 16. The lower region equivalent portion 32 includes a lower first region 32A and a lower second region 32B. The lower first region 32A is a region located on the skin side, and the lower second region 32B is a lower elastic member. This is the area where 15D is placed.

  The upper second region 31B is disposed on the front surface 31B ′ in the drawing with the upper elastic member 15U extended, and then the adhesive 33 is applied. Further, the lower second region 32B is disposed on the front surface 32B ′ in the drawing with the lower elastic member 15D extended, and then the adhesive 33 is applied. The adhesive 33 may be applied to the upper first region 31A and the lower first region 32A, or may be applied to both. As shown in FIG. 11B, the upper first region 31A is valley-folded into the upper second region 31B, and the inner elastic portion 27 is configured in which the upper elastic member 15U is sandwiched between sheets. Further, the lower first region 32A is valley-folded toward the lower second region 32B, and the outer elastic portion 28 is configured in which the lower elastic member 15D is sandwiched between sheets. The upper elastic member 15U to which the adhesive 33 is applied may be disposed on the surface 31B ′ of the upper second region 31B, and the upper first region 31A may be valley-folded into the upper second region 31B. Alternatively, the lower elastic member 15D coated with the adhesive 33 may be disposed on the surface 32B ′ of the lower second region 32B, and the lower first region 32A may be valley-folded into the lower second region 32B.

  As shown in FIG. 11C, an adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 11D, the adherend 16A of the absorbent main body 16 is placed across the first adhesion region 22A of the upper region equivalent portion 31 and the third adhesion region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 11E, the upper first region 31A and the upper second region 31B sandwiching the upper elastic member 15U constituting the inner elastic portion 27 are valley-folded and overlapped with the upper third region 31C. . As shown in FIG. 11 (f), the inner elastic portion 27 is not bonded to the bonded portion 16 </ b> A, and the crotch portion side is an open end between the bonded portion 16 </ b> A and the inner elastic portion 27. The pocket 30 thus formed is formed.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second first bonding region 22B to which the upper first region 31A (inner elastic portion 27) is bonded. The same adhesive may be applied at a time.

  Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the upper first region is bonded to the second bonding region 22B. 31A (inner elastic part 27) is made to adhere | attach with this with low adhesive force. As a result, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the upper first region 31A (inner elastic portion 27) is attached to the second bonding region 22B. On the other hand, it can be bonded so as not to impair elasticity or flexibility.

  The first exterior body 12F and the second exterior body 12R are bonded to the absorbent main body 16 through the steps described above. Thereafter, both end portions in the waistline direction of the first exterior body 12F and both end portions in the waistline direction of the second exterior body 12R are joined to form the joint portion 11.

In the diaper 70 as described above, the following effects can be further obtained.
(14) Since one outer sheet portion 26 sandwiches the upper elastic member 15U and the lower elastic member 15D and further extends across the inner and outer surfaces of the absorbent main body 16, the number of parts can be reduced. The manufacturing process can be simplified.

[Sixth Embodiment]
As shown in FIG. 12, the diaper 80 of the sixth embodiment is formed by valley-folding one outer sheet portion 26 in the diaper 70 of the fifth embodiment (see FIG. 11A). One outer sheet portion 26 is folded in a mountain. As a result, one end portion of the outer sheet portion 26 is located at the innermost portion in contact with the skin at the inner elastic portion 27, and the other end portion is at the outermost portion opposite to the skin at the outer elastic portion 28 portion. positioned. In FIG. 12, the right side is the skin side of the diaper wearer.

  As shown in FIG. 13A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here also includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A, an upper second region 31B, and an upper third region 31C. The lower region equivalent portion 32 includes a lower first region 32A and a lower second region 32B.

  The upper second region 31B is disposed on the back surface 31B ″ in the drawing with the upper elastic member 15U extended, and then an adhesive is applied. The lower second region 32B is disposed on the inner surface 32B ″ in the drawing with the lower elastic member 15D extended, and then an adhesive is applied. As shown in FIG. 13B, the upper first region 31A is mountain-folded into the upper second region 31B, and the inner elastic portion 27 is configured in which the upper elastic member 15U is sandwiched between sheets. Further, the lower first region 32A is mountain-folded toward the lower second region 32B, and the outer elastic portion 28 is configured in which the lower elastic member 15D is sandwiched between sheets. Alternatively, the upper elastic member 15U to which the adhesive is applied may be disposed on the surface 31B ″ of the upper second region 31B, and the upper first region 31A may be folded into the upper second region 31B. Alternatively, the lower elastic member 15D coated with the adhesive may be disposed on the surface 32B '' of the lower second region 32B, and the lower first region 32A may be folded into the lower second region 32B.

  As shown in FIG. 13C, an adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 13 (d), the adherend portion 16A of the absorbent main body 16 is placed across the first adhesive region 22A of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 13E, the upper first region 31A and the upper second region 31B sandwiching the upper elastic member 15U constituting the inner elastic portion 27 are valley-folded and overlapped with the upper third region 31C. . As shown in FIG. 13 (f), the inner elastic portion 27 is not bonded to the bonded portion 16 A, and the crotch side is an open end between the bonded portion 16 A and the inner elastic portion 27. The pocket 30 thus formed is formed.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second first bonding region 22B to which the upper first region 31A (inner elastic portion 27) is bonded are described. The same adhesive may be applied at a time.

Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the upper first region is bonded to the second bonding region 22B. 31A (inner elastic part 27) is made to adhere | attach with this with low adhesive force. As a result, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the upper first region 31A (inner elastic portion 27) is attached to the second bonding region 22B. On the other hand, it can be bonded so as not to impair elasticity or flexibility.
Even in the diaper 80 as described above, the same effect as the diaper 70 of the fifth embodiment can be obtained.

[Seventh Embodiment]
7th Embodiment is another manufacturing method of the diaper 70 of 5th Embodiment shown in FIG. As shown in FIG. 14A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here also includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A, an upper second region 31B, and an upper third region 31C. The lower region equivalent portion 32 includes a lower first region 32A and a lower second region 32B.

  The upper first region 31A is disposed on the front surface 31A 'in the drawing with the upper elastic member 15U extended, and then the adhesive 33 is applied. The lower first region 32A is disposed on the front surface 32A 'in the drawing with the lower elastic member 15D extended, and then the adhesive 33 is applied. As shown in FIG. 14B, the upper first region 31A is valley-folded into the upper second region 31B, and the inner elastic portion 27 is configured in which the upper elastic member 15U is sandwiched between sheets. Further, the lower first region 32A is valley-folded toward the lower second region 32B, and the outer elastic portion 28 is configured in which the lower elastic member 15D is sandwiched between sheets. The upper elastic member 15U to which the adhesive 33 is applied may be disposed on the surface 31A ′ of the upper first region 31A, and the upper first region 31A may be valley-folded into the upper second region 31B. Alternatively, the lower elastic member 15D coated with the adhesive 33 may be disposed on the surface 32A ′ of the lower first region 32A, and the lower first region 32A may be valley-folded into the lower second region 32B.

  As shown in FIG. 14C, the adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 14D, the adherend 16A of the absorbent main body 16 is placed across the first adhesive region 22A of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 14E, the upper first region 31A and the upper second region 31B sandwiching the upper elastic member 15U constituting the inner elastic portion 27 are valley-folded and overlapped with the upper third region 31C. . As shown in FIG. 14 (f), the inner elastic portion 27 is not bonded to the bonded portion 16 </ b> A, and the crotch portion side is an open end between the bonded portion 16 </ b> A and the inner elastic portion 27. The pocket 30 thus formed is formed.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second first bonding region 22B to which the upper first region 31A (inner elastic portion 27) is bonded are described. The same adhesive may be applied at a time.

Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the upper first region is bonded to the second bonding region 22B. 31A (inner elastic part 27) is made to adhere | attach with this with low adhesive force. As a result, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the upper first region 31A (inner elastic portion 27) is attached to the second bonding region 22B. On the other hand, it can be bonded so as not to impair elasticity or flexibility.
The diaper 70 of the fifth embodiment can be manufactured also by the manufacturing method as described above.

[Eighth Embodiment]
The eighth embodiment is another method for manufacturing the diaper 80 shown in FIG. As shown in FIG. 15A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here also includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A, an upper second region 31B, and an upper third region 31C. The lower region equivalent portion 32 includes a lower first region 32A and a lower second region 32B.

  The upper first region 31A is disposed on the inner surface 31A ″ in the drawing with the upper elastic member 15U extended, and then an adhesive is applied. Further, the lower first region 32A is arranged on the inner surface 32A ″ in the drawing with the lower elastic member 15D extended, and then an adhesive is applied. As shown in FIG. 15B, the upper first region 31A is mountain-folded into the upper second region 31B, and the inner elastic portion 27 is configured in which the upper elastic member 15U is sandwiched between sheets. Further, the lower first region 32A is mountain-folded toward the lower second region 32B, and the outer elastic portion 28 is configured in which the lower elastic member 15D is sandwiched between sheets. The upper elastic member 15U to which the adhesive 33 is applied may be arranged on the surface 31A ″ of the upper first region 31A, and the upper first region 31A may be folded into the upper second region 31B. Alternatively, the lower elastic member 15D to which the adhesive 33 is applied may be disposed on the surface 32A ″ of the lower first region 32A, and the lower first region 32A may be folded into the lower second region 32B.

  As shown in FIG. 15C, the adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 15D, the adherend 16A of the absorbent main body 16 is placed across the first adhesion region 22A of the upper region equivalent portion 31 and the third adhesion region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 15E, the upper first region 31A and the upper second region 31B sandwiching the upper elastic member 15U constituting the inner elastic portion 27 are valley-folded and overlapped with the upper third region 31C. . As shown in FIG. 15 (f), the inner elastic portion 27 is not bonded to the bonded portion 16 </ b> A, and the crotch side is an open end between the bonded portion 16 </ b> A and the inner elastic portion 27. The pocket 30 thus formed is formed.

  Here, the first adhesion region 22A and the third adhesion region 22C to which the bonded portion 16A of the absorbent main body 16 is adhered and the second adhesion region 22B to which the upper second region 31B (inner elastic portion 27) is adhered are defined. The same adhesive may be applied at a time.

Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the upper second region is bonded to the second bonding region 22B. 31B (inner elastic part 27) is made to adhere | attach with this with low adhesive force. As a result, the bonded portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the upper second region 31B (inner elastic portion 27) is attached to the second bonding region 22B. On the other hand, it can be bonded so as not to impair elasticity or flexibility.
The diaper 80 of the sixth embodiment can be manufactured also by the manufacturing method as described above.

[Ninth Embodiment]
As shown in FIG. 16, the diaper 90 of the ninth embodiment is a modification of the diaper 40 of the second embodiment shown in FIG. 5, and the outer sheet portion 26 is located on the outermost side, and the lower elastic member 15 </ b> D is disposed. It has a configuration for sandwiching. Further, the inner elastic portion 27 is sandwiched between one sheet 27A and is folded at a portion close to the crotch portion 10C. In FIG. 16, the right side is the skin side of the diaper wearer. Hereinafter, the manufacturing method of the diaper 90 is demonstrated.

  As shown in FIG. 17A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 has a size corresponding to the upper region 12U, and the lower region equivalent portion 32 includes a lower first region 32A and a lower second region 32B.

  The lower second region 32B is disposed on the front surface 32B ′ in the drawing with the lower elastic member 15D extended, and then the adhesive 33 is applied. As shown in FIG. 17B, the lower first region 32A is valley-folded toward the lower second region 32B, and the outer elastic portion 28 is configured in which the lower elastic member 15D is sandwiched between sheets. Alternatively, the lower elastic member 15D coated with the adhesive 33 may be disposed on the surface 32B ′ of the lower second region 32B, and the lower first region 32A may be valley-folded into the lower second region 32B.

  As shown in FIG. 17C, the adhesive layer 25 is formed in the first adhesive region 22A and the second adhesive region 22B of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The As shown in FIG. 17D, the adherend 16A of the absorbent main body 16 is placed across the first adhesive region 22A of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 17 (e), a series of sheets 27A sandwiching the upper elastic member 15U is prepared here. The sheet 27 </ b> A here has a size corresponding to the upper region corresponding portion 31 when folded in half to sandwich the upper elastic member 15 </ b> U. The upper elastic member 15U is disposed on the seat 27A in an extended state. Then, after an adhesive such as a hot-melt adhesive is applied, the sheet 27A is bent in half and sandwiches the upper elastic member 15U. Alternatively, the upper elastic member 15U coated with the adhesive 33 is placed on the sheet 27A in an extended state, and the sheet 27A is bent in half. Thereby, the inner side elastic part 27 is comprised. As shown in FIG. 17F, the inner elastic portion 27 is bonded to the second bonding region 22B of the outer sheet portion 26 from above the bonded portion 16A. At this time, the folded sheet 27A is arranged with respect to the upper region equivalent portion 31 so that the fold is on the crotch 10C side and the end opposite to the fold is located on the waistline opening 10A side. The Thus, the inner elastic portion 27 arranged on the upper region equivalent portion 31 is not bonded to the bonded portion 16A, and the crotch side is interposed between the bonded portion 16A and the inner elastic portion 27. A pocket 30 having an open end is formed.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second bonding region 22B to which the sheet 27A (inner elastic portion 27) is bonded are at one time. The same adhesive may be applied.

  Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the sheet 27A (inner side) is bonded to the second bonding region 22B. The elastic part 27) is adhered to this with a low adhesive force. Thereby, the adherend portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the sheet 27A (inner elastic portion 27) is elastic to the second bonding region 22B. Or it can adhere | attach so that a softness | flexibility may not be impaired.

In the diaper 90 as described above, the following effects can be further obtained.
(15) Since the upper elastic member 15U is sandwiched by one sheet 27A, it is possible to reduce the number of parts of the inner elastic portion 27 and improve the production efficiency. In addition, since the outer elastic portion 28 is configured by the single outer sheet portion 26, it is possible to reduce the number of parts of the outer elastic portion 28 and improve the production efficiency.

[Tenth embodiment]
As shown in FIG. 18, the diaper 91 of the tenth embodiment is obtained by reversing the direction of the inner elastic portion 27 of the diaper 90 of the ninth embodiment, and the waistline opening of the fold of the folded sheet 27A. The end on the side opposite to the fold is on the crotch 10C side on the side of the part 10A. In FIG. 18, the right side is the skin side of the diaper wearer. Also by such a diaper 91, the effect similar to the diaper 90 of 9th Embodiment can be acquired.

[Eleventh embodiment]
11th Embodiment is a manufacturing method of the diaper 10 of 1st Embodiment, Comprising: It is a manufacturing method different from the manufacturing method of the diaper 10 shown in FIG. As shown in FIG. 19A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A and an upper second region 31B.

  In the upper first region 31A, the upper elastic member 15U is extended and disposed on the front surface 31A 'in the drawing, and then the adhesive 33 is applied. Further, the lower region equivalent portion 32 is disposed on the front surface 32 'in the drawing with the lower elastic member 15D extended, and then an adhesive is applied. As shown in FIG. 19B, the sheet 27A constituting the inner elastic portion 27 is bonded to the upper first region 31A. In addition, a sheet 28 </ b> A constituting the outer elastic portion 28 is bonded to the lower region equivalent portion 32. The upper elastic member 15U to which the adhesive 33 is applied may be disposed on the surface 31A ′ of the upper first region 31A, and the sheet 27A may be disposed on the surface 31A ′. Alternatively, the lower elastic member 15D coated with the adhesive 33 may be disposed on the surface 32A ′ of the lower region equivalent portion 32, and the sheet 28A may be disposed on the surface 32A ′.

  As shown in FIG. 19C, in the upper second region 31B of the upper region equivalent portion 31, the first adhesion region 22A and the second adhesion region 22B and the third adhesion region 22C of the lower region equivalent portion 32 The adhesive layer 25 is formed. As shown in FIG. 19 (d), the adherend 16A of the absorbent main body 16 is placed across the first adhesive region 22A of the upper region equivalent portion 31 and the third adhesive region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 19E, the inner elastic portion 27 sandwiching the upper elastic member 15U with the sheet is folded in a valley and overlapped with the upper second region 31B. As shown in FIG. 19 (f), the inner elastic portion 27 is not bonded to the bonded portion 16A, and the crotch side is an open end between the bonded portion 16A and the inner elastic portion 27. The pocket 30 thus formed is formed.

  Here, the first bonding region 22A and the third bonding region 22C to which the bonded portion 16A of the absorbent main body 16 is bonded and the second bonding region 22B to which the sheet 27A (inner elastic portion 27) is bonded are at one time. The same adhesive may be applied.

  Further, as described above, the adhesive may be applied using a different adhesive or a different application method. In this case, for example, the bonded portion 16A is bonded to the first bonding region 22A and the third bonding region 22C with a high bonding force, and the sheet 27A (inner side) is bonded to the second bonding region 22B. The elastic part 27) is adhered to this with a low adhesive force. Thereby, the adherend portion 16A can be firmly bonded to the first bonding region 22A and the third bonding region 22C, and the sheet 27A (inner elastic portion 27) is elastic to the second bonding region 22B. Or it can adhere | attach so that a softness | flexibility may not be impaired.

In the manufacturing method as described above, the following effects can be further obtained.
(16) Compared with the manufacturing method of the diaper 10 shown in FIG. 3, the upper elastic member 15U is directly disposed in the upper first region 31A of the outer sheet portion 26, and then the bonded portion 16A of the absorbent main body 16 is It is placed on the outer sheet portion 26. Therefore, the upper elastic member 15U can be arranged in the aligned upper first region 31A without being affected by the step formed by the bonded portion 16A (see FIG. 19A). That is, in FIG.3 (e), since the upper elastic member 15U is arrange | positioned on the to-be-adhered part 16A of the absorptive main body 16, a level | step difference is formed between the part of the to-be-adhered part 16A and other parts. Therefore, it is necessary to arrange the upper elastic member 15U on the step, and in this respect, it is difficult to arrange the upper elastic member 15U in an aligned state. In this regard, in this embodiment, the upper elastic member 15U is disposed in the upper first region 31A of the outer sheet portion 26 before the adherend portion 16A of the absorbent main body 16 is disposed. It can be arranged in a simple manner.

[Twelfth embodiment]
As shown in FIG. 20, in the diaper 100 of the twelfth embodiment, the waistline opening 10 </ b> A has a double sheet structure with an outer sheet portion 26 and an inner sheet portion 29. When causing the wearer to wear the diaper 100, the worker performs a work of raising the diaper 100 upward by hooking a finger on the open end of the pocket 30. For this reason, there is a possibility that a tensile force acts in the vicinity of the waist opening 10A of the sheet continuous with the inner elastic portion 27, and the portion is broken and broken (see A portion in FIG. 20). Therefore, the diaper 100 has a double structure as the sheet structure of the waistline opening 10A so as to increase the strength. In FIG. 20, the right side is the skin side of the diaper wearer. In the diaper 100, the outer sheet portion 26 and the inner sheet portion 29 are bonded by the adhesive 25A so that the positions of each other are not shifted. Hereinafter, the manufacturing method of the diaper 100 is demonstrated.

  As shown in FIG. 21A, the outer sheet portion 26 is prepared. The outer sheet portion 26 prepared here includes an upper region equivalent portion 31 and a lower region equivalent portion 32. The upper region equivalent portion 31 includes an upper first region 31A and an upper second region 31B.

  In the upper first region 31A, the upper elastic member 15U is extended and arranged on the front surface 31A 'in the drawing, and in the lower region equivalent portion 32, the lower elastic member 15D is extended. It is arranged on the front surface 32 '. Then, as shown in FIG. 21 (b), an adhesive 25A is applied to the entire surface of the outer sheet portion 26, and one inner sheet portion 29 is formed so as to cover the upper elastic member 15U and the lower elastic member 15D. Overlaid. Thereby, the adhesive 25 </ b> A adheres and integrates the outer sheet portion 26 and the inner sheet portion 29. And the inner side elastic part 27 and the outer side elastic part 28 are comprised. The upper elastic member 15U coated with the adhesive 25A is disposed on the surface 31A 'of the upper first region 31A, and the lower elastic member 15D coated with the adhesive 25A is disposed on the surface 32' of the lower region equivalent portion 32. To do. Then, the adhesive 25A is applied to a region between the upper first region 31A and the lower region equivalent portion 32 where the upper elastic member 15U and the lower elastic member 15D of the outer sheet portion 26 are not disposed. The outer sheet portion 26 may be entirely overlapped with the inner sheet portion 29.

  As shown in FIG. 21C, in the upper second region 31B of the upper region equivalent portion 31, the first adhesion region 22A and the second adhesion region 22B and the third adhesion region 22C of the lower region equivalent portion 32 The adhesive layer 25 is formed. As shown in FIG. 21D, the adherend 16A of the absorbent main body 16 is placed across the first adhesion region 22A of the upper region equivalent portion 31 and the third adhesion region 22C of the lower region equivalent portion 32. The

  As shown in FIG. 21E, the inner elastic portion 27 sandwiching the upper elastic member 15U with the sheet is folded in a valley and overlapped with the upper second region 31B. As shown in FIG. 21 (f), the inner elastic portion 27 is not bonded to the bonded portion 16A, and the crotch side is an open end between the bonded portion 16A and the inner elastic portion 27. The pocket 30 thus formed is formed.

In the diaper 100 as described above, the following effects can be further obtained.
(17) In the periphery of the waistline opening 10A, the outer sheet portion 26 and the inner sheet portion 29 form a double structure, and the strength can be increased. Therefore, even when the diaper 100 is put on, even if the diaper 100 is pulled up by pulling the finger into the pocket 30, it is possible to prevent the pulling force from causing damage such as opening a hole around the waistline opening 10A. .

[Thirteenth embodiment]
FIG. 22 shows a manufacturing method according to the thirteenth embodiment, and the manufacturing method according to the thirteenth embodiment is a modification of the manufacturing method in the diaper 100 according to the twelfth embodiment. 21 (c) to 21 (d), the first bonding region 22A and the second bonding region 22B in the upper second region 31B of the upper region corresponding portion 31 and the third bonding of the lower region corresponding portion 32 are performed. The adhesive layer 25 is uniformly formed in the adhesive region 22C. In the thirteenth embodiment, as shown in FIG. 22A, a first adhesive such as a hot-melt adhesive having a high adhesive strength is applied to the first adhesive region 22A and the third adhesive region 22C for adhesion. Layer 25X is formed. Next, as shown in FIG. 22B, the adherend 16A of the absorbent main body 16 is placed across the first adhesion region 22A of the upper region equivalent portion 31 and the third adhesion region 22C of the lower region equivalent portion 32. Placed and glued. The first adhesive is applied to the first adhesive region 22A and the third adhesive region 22C using a roller, for example, so that the edge portion is also applied cleanly, and the bonded portion 16A is attached to the first adhesive region 22A and the third adhesive region. It can be firmly adhered to the region 22C.

  Next, as shown in FIG. 22C, the second adhesive region 22B of the upper second region 31B is coated with a second adhesive such as a hot melt adhesive having a lower adhesive strength than the first adhesive. Layer 25Y is formed. Thereafter, the inner elastic portion 27 sandwiching the upper elastic member 15U between the sheets is folded in a valley, overlapped on the upper second region 31B, and bonded. Thereby, the inner side elastic part 27 can adhere | attach the 2nd adhesion area | region 22B so that elasticity or a softness | flexibility may not be impaired. As an example, the second adhesive is applied using a spray or the like.

  The first adhesive region 22A, the third adhesive region 22C, and the second adhesive region 22B use the same adhesive (which may be either the first adhesive or the second adhesive), and the amount and application of the adhesive. By different methods, the first adhesive region 22A and the third adhesive region 22C may have a higher adhesive force than the second adhesive region 22B. For example, the first adhesive region 22A and the third adhesive region 22C are configured to apply the adhesive firmly to the entire surface using a roller. On the other hand, the second adhesive region 22B may be applied using a spray or the like to reduce the amount of adhesive. Further, in the second adhesive region 22B, the amount of the adhesive to be applied may be reduced by applying the adhesive in a spiral shape or a stripe shape. Thereby, the 2nd adhesion field 22B can be pasted up so that elasticity or flexibility may not be spoiled.

  As shown in FIG. 22D, the second bonding region 22B is a region where the elongated region 25X ′ along the waistline direction on the upper side of the adherend portion 16A is solid-coated with a roller or the like, and the regions on both sides of the adherend portion 16A. 25Y ′ may be applied by spraying or the like.

[Fourteenth embodiment]
FIG. 23 shows a manufacturing method according to the fourteenth embodiment, and the manufacturing method according to the fourteenth embodiment is a modification of the manufacturing method in the diaper 100 according to the twelfth and thirteenth embodiments. In the fourteenth embodiment, as shown in FIG. 23 (a), the first adhesive region 22A and the third adhesive region 22C are coated with a first adhesive such as a hot melt adhesive having a high adhesive strength. Layer 25X is formed. Next, as shown in FIG. 23 (b), a second adhesive such as a hot melt adhesive having a lower adhesive strength than the first adhesive is applied to the upper first region 31A constituting the inner elastic portion 27. The adhesive layer 25Y is formed. At this time, the second adhesive is not applied to the region corresponding to the bonded portion 16A when the upper first region 31A overlaps the upper second region 31B. That is, the second adhesive is applied to the upper first region 31A so as to have a concave shape. Then, the upper first region 31A sandwiching the upper elastic member 15U with the sheet is folded in a valley and overlapped with the upper second region 31B.
Also by the manufacturing method of the fourteenth embodiment, the same effect as that of the thirteenth embodiment can be obtained.

  Also in the fourteenth embodiment, the first adhesive region 22A, the third adhesive region 22C, and the second adhesive region 22B use the same adhesive (which may be either the first adhesive or the second adhesive). The first adhesive region 22A and the third adhesive region 22C may have higher adhesive strength than the second adhesive region 22B by varying the amount of adhesive and the application method.

  Further, as shown in FIG. 23 (c), in the second bonding region 22B, the elongated region 25X ′ along the waistline direction of the bonded portion 16A is solid-coated with a roller or the like, and the regions 25Y ′ on both sides of the bonded portion 16A are covered. May be applied by spraying or the like.

[Fifteenth embodiment]
In the diaper 10 of 1st Embodiment demonstrated above, the strip | belt-shaped area | region 34 is provided in the periphery of 10 A of trunk periphery opening parts (refer Fig.2 (a), (c)). As shown in FIGS. 24A to 24D, in the diaper 110 of the thirteenth embodiment, the front-rear direction tip of the adherend 16A is disposed at a position along the opening end of the waistline opening 10A. Thereby, the pocket 30 can be made deep and more excrement can be received. Such a diaper is applicable also to the diaper 40, 50, 60, 70, 80, 90, 91, 100 mentioned above.

In addition, the said embodiment can also be suitably changed and implemented as follows.
-The shape of the pocket 30 will not be specifically limited if the opening end is provided in the crotch part 10C side. For example, the pocket 30 may have an Ω shape as a whole with the width of the opening end of the pocket 30 narrowed, for example, and the opening end may face the crotch 10C side. Thereby, it is possible to prevent the excrement once entering the pocket 30 from returning. Moreover, the width of the opening end of the pocket 30 may be wider than the side on the waist opening 10A side. Thereby, it is possible to easily enter the excrement into the pocket 30.

  In the lower region 12D, the lower elastic member 15D may not be arranged in an extended state in all regions. For example, the lower elastic member 15D may be cut below the pocket 30.

  -As long as the pleats 16B are formed, the outer elastic portion 28 may not be adhered to the entire surface of the adherend portion 16A of the absorbent main body 16, but may be partially adhered. For example, the adhesive may be applied in a straight line or a wavy line along the front-rear direction. Moreover, you may make it apply | coat an adhesive agent only to the both-sides edge part of the width direction of the to-be-adhered part 16A. Moreover, you may make it apply | coat an adhesive agent to a dot shape.

  The upper region 12U and the lower region 12D may not be connected by the outer sheet portion 26. That is, the upper region 12U and the lower region 12D may be separated. The outer sheet | seat part 26 should just be provided in the position facing the inner side elastic part 27 at least, and can change suitably by the structure of a diaper other than that.

  -The area | region where the upper elastic member 15U located inside with respect to the absorptive main body 16 and the area | region where lower elastic member 15D located outside may be arrange | positioned may overlap. In addition, the lower end portion of the region where the upper elastic member 15U is disposed and the upper end portion of the region where the lower elastic member 15D is disposed may be located at the same position in the boundary portion. Thereby, in the boundary part of the lower end part of an upper area | region, and the upper end part of a lower area | region, generation | occurrence | production of a lateral tear can be suppressed and the junction part of the both ends of the trunk periphery direction of each exterior part can be broken reliably.

Any one of the first exterior body 12F and the second exterior body 12R only needs to include the upper region 12U and the lower region 12D.
The pocket 30 is preferably provided in both the first exterior body 12F and the second exterior body 12R, but may be provided in at least one of them.
-The disposable diaper may be a tape-type diaper.

-It may be a disposable diaper for infants or adults such as the elderly or disabled persons who need nursing care. Moreover, it may be for pets.
-The sheet | seat which comprises the outer side sheet | seat part 26 which comprises the exterior body 12, the inner side elastic part 27, and the outer side elastic part 28 may be liquid impervious, and is liquid permeable. Also good.

  DESCRIPTION OF SYMBOLS 10 ... Diaper, 10A ... Trunk opening part, 10F ... Front body, 10R ... Back body, 10C ... Crotch part, 10W ... Trunk part, 10L ... Leg part opening part, 11 ... Joint part, 12 ... Exterior body, 12F ... No. DESCRIPTION OF SYMBOLS 1 Exterior body, 12R ... 2nd exterior body, 12U ... Upper area | region, 12D ... Lower area | region, 15 ... Elastic member, 15U ... Upper elastic member, 15D ... Lower elastic member, 16 ... Absorbent main body, 16A ... Adhered part, 16B ... folds, 17 ... back sheet, 18 ... absorber, 19 ... top sheet, 21 ... solid gather, 21S ... side sheet, 21E ... elastic member, 22A ... first adhesive region, 22B ... second adhesive region, 22C ... Third adhesive region, 25 ... adhesive layer, 25A ... adhesive, 25X ... adhesive layer, 25Y ... adhesive layer, 25X '... region, 25Y' ... region, 26 ... outer sheet portion, 27 ... inner elastic portion, 27A, 27B ... Sh 28 ... outer elastic part, 28A ... sheet, 29 ... inner sheet part, 30 ... pocket, 31 ... upper region equivalent part, 31A ... upper first region, 31B ... upper second region, 31C ... upper third region 32A ... Lower first region, 32B ... Lower second region, 32 ... Lower region equivalent part, 33 ... Adhesive, 34 ... Strip-like region, 61 ... Notch end, 40, 50, 60, 70, 80, 90, 91, 100, 110 ... Diapers.

Claims (8)

A first exterior part constituting the front body;
A second exterior part constituting the back body;
An absorbent main body having an adherend portion with both end portions in the front-rear direction overlapping the first exterior portion and the second exterior portion, and both end portions in the waistline direction of the first exterior portion and the waist circumference of the second exterior portion A disposable diaper that joins both ends of the direction,
At least one exterior part of the first exterior part and the second exterior part includes an upper region and a lower region located on the crotch side from the upper region,
The upper region includes an upper elastic member that expands and contracts in the waistline direction,
The lower region includes a lower elastic member that expands and contracts in the waistline direction,
The upper region is an inner elastic part configured by sandwiching the upper elastic member with a sheet, and the inner elastic part located on the inner side which is the skin side from the absorbent main body,
An outer sheet portion located on the outer side opposite to the skin from the absorbent main body and positioned opposite to at least the inner elastic portion;
The lower region is an outer elastic portion configured by sandwiching the lower elastic member with a sheet, and includes the outer elastic portion positioned outside the absorbent main body,
A disposable diaper in which the upper region and the lower region overlap. The disposable diaper according to claim 1, wherein a lower end portion of the upper region and an upper end portion of the lower region are located at the same position in a boundary portion. The inner elastic portion is non-adhered to the adherend portion, and the periphery of the adherend portion is adhered to the outer sheet portion so that an opening end of the adherend portion faces the crotch portion,
The disposable diaper according to claim 1 or 2, wherein the outer elastic portion is bonded to the bonded portion. The disposable diaper according to any one of claims 1 to 3, wherein the outer sheet portion is a series of sheets straddling the upper region and the lower region, and connects the upper region and the lower region. . A first exterior part constituting the front body;
A second exterior part constituting the back body;
An absorbent main body having an adherend portion with both end portions in the front-rear direction overlapping the first exterior portion and the second exterior portion, and both end portions in the waistline direction of the first exterior portion and the waist circumference of the second exterior portion In the manufacturing method of the disposable diaper which joined both ends of the direction,
At least one exterior part of the first exterior part and the second exterior part includes an upper region and a lower region located on the crotch side from the upper region,
The upper region includes an upper elastic member that expands and contracts in the waistline direction,
The lower region includes a lower elastic member that expands and contracts in the waistline direction,
The upper region is an inner elastic part configured by sandwiching the upper elastic member with a sheet, and the inner elastic part located on the inner side which is the skin side from the absorbent main body,
An outer sheet portion located on the outer side opposite to the skin from the absorbent main body,
An outer elastic portion configured by sandwiching the lower elastic member with a sheet, the outer elastic portion positioned outside the absorbent main body,
In the lower region, sandwiching the lower elastic member with a sheet to configure the outer elastic portion; and
Placing and adhering the adherend across the outer elastic part and the outer sheet part; and
The upper elastic member is sandwiched between sheets to form the inner elastic portion, the inner elastic portion is overlapped with the outer sheet portion from above the bonded portion, and the bonded portion is connected to the outer sheet portion and the outer sheet portion. Sandwiching between the inner elastic portion and bonding the outer sheet portion and the inner elastic portion;
Bonding both ends of the first exterior portion in the waistline direction and both ends of the second exterior portion in the waistline direction; and
The manufacturing method of the disposable diaper which makes the said upper area | region and the said lower area | region overlap. The manufacturing method of the disposable diaper according to claim 5, wherein the lower end portion of the upper region and the upper end portion of the lower region are located at the same position in the boundary portion. The inner elastic portion is not bonded to the bonded portion, and is bonded to the outer sheet portion so that an opening end of the bonded portion faces the crotch portion around the bonded portion. Item 7. A method for producing a disposable diaper according to item 5 or 6. 8. The disposable diaper according to claim 5, wherein the outer sheet portion is a series of sheets straddling the upper region and the lower region, and connects the upper region and the lower region. Method.

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