JP2003339750A - Disposable absorbent article and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable absorbent article of which the joining property and the fitting property with the body of a person wearing it are good even when a large-sized inner pad is used, and also, which can be easily manufactured. <P>SOLUTION: For a diaper body 1, an absorbing body 4 is arranged between a liquid- permeable front surface sheet 2 and a liquid-impermeable rear surface sheet 3. An external layer sheet 5 is bonded by superposing it with the liquid-impermeable rear surface sheet 3. Then, a back side waist part 8, an under crotch part 9 having a leg surrounding part 11 on both side parts, and a belly side waist part 10 are integrally formed in order in the longitudinal direction, and the absorbing body 4 is arranged on the under crotch part 9. The superposed part for sections which are extended outward from both side edge parts in the width direction of the absorbing body 4 between the liquid-impermeable rear surface sheet 3 and the external layer sheet 5 is formed into a non-fixed part. Then, a first elastic body 12 and a second elastic body 13 are arranged on the back side waist part 8 of the liquid-impermeable rear surface sheet 3 and the section from the belly side waist part 10 to the leg surrounding parts 11 on both sides. At the time of fitting, the side edge part of the liquid- impermeable rear surface sheet 3 erects and forms solid gathers. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a disposable absorbent article such as a disposable diaper for adults or incontinence, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, a disposable absorbent article as a disposable diaper of this type has a liquid permeable top sheet, a liquid impermeable back sheet, and a space between the liquid permeable top sheet and the liquid impermeable back sheet. A waist portion around the back, a crotch portion having leg portions on both side edges in the width direction, and an abdominal portion around the waist are integrally formed sequentially in the longitudinal direction. A diaper body is provided, and a dorsal side joint portion is provided on both sides in the width direction of the back waistline portion of the diaper body, and a backside joint portion is provided on both sides in the width direction of the ventral waistline portion of the diaper body. A structure is generally known in which an abdominal joint that is detachably connected to the side joint is provided, and this disposable diaper has a pant shape by connecting the back joint and the abdominal joint in a worn state. Becomes

Further, conventionally, this type of disposable diaper has been
By connecting both sides of the back waistline part and both sides of the abdominal waistline part, there is one waistline side opening that opens upward and a pair of leg side openings that open substantially downward. In addition to being provided, elastic bodies are arranged in the width direction at the back waist region and the abdominal waist region so that they expand and contract over substantially the entire circumference of the waist region opening. Sex articles are known.

The disposable absorbent article having the above-mentioned two types of shapes is generally called an outer. The skin side of the disposable absorbent article is to prevent leakage of excreted liquid from the vicinity of the leg parts. It is general that each three-dimensional gather is provided.

On the other hand, in recent years, in order to reduce the amount of disposable absorbent articles used to reduce the cost and the amount of waste, the disposable absorbent articles are not directly attached to the wearer's body alone. There are many examples of use in which an inner pad is attached between a disposable absorbent article and the wearer's body. The inner pad is smaller in size than a disposable absorbent article, and is often a substantially rectangular shape or a shape called a gourd shape or an hourglass shape in which a concave narrowed portion is provided at a substantially central portion in the longitudinal direction. In addition, this inner pad does not hinder the wearer of the disposable absorbent article when it is continuously used for a long time, such as when sleeping at night, or when the wearer has a large amount of urine. However, relatively large ones are often used to prevent the leakage of excretory fluid.

[0006]

However, since the three-dimensional gather of the disposable absorbent article is formed by incorporating the elastic body, the disposable absorbent article is usually disposed so that the elastic body can be easily arranged and manufactured. The gathers are formed in a straight line by disposing the elastic bodies in a straight line along the longitudinal direction on both sides of the article. Therefore, when the disposable absorbent article uses the inner pad, if the width dimension of the inner pad is substantially equal to the interval between the three-dimensional gathers, the inner pad is removed from between the three-dimensional gathers on both sides. It can be arranged between the three-dimensional gathers without protruding, but if the width dimension of the inner pad to be used is larger than the interval between the three-dimensional gathers, the inner pad will have a portion protruding in the width direction. As a result of the inner pad crushing the three-dimensional gather, the crushed part of the three-dimensional gather is separated from the wearer's body, and the three-dimensional gather is excreted from the part separated from the wearer's body. The liquid may leak.

Therefore, by increasing the widthwise dimension of the crotch around portion of the disposable absorbent article, the widthwise dimension between the three-dimensional gathers on both sides extending in the longitudinal direction from both leg around portions is increased, and a large inner pad. It is possible to prevent the three-dimensional gathers from being crushed even when using, and to prevent the three-dimensional gathers from adhering to the wearer's body and preventing the leakage of excreted liquid.However, according to this method, Even if the inner pad can prevent the three-dimensional gather from being crushed, the widthwise dimension of the crotch part of the disposable absorbent article becomes large, and the wearable person is intimately attached to the disposable absorbent article and the wearer's body. It feels uncomfortable due to poor wearability and fit, and a gap between the gather of the disposable absorbent article and the wearer's body is likely to occur, resulting in frequent excretion of excretory fluid. There is a problem.

The present invention has been made in view of the above problems. Even if a large inner pad is used, the excretion liquid does not leak to the outside because the adhesion and fit with the wearer's body are good. (EN) Disclosed is a disposable absorbent article that does not occur, and the wearing state of an inner pad interposed between the wearer's body and the body is well maintained, and that can be easily manufactured. To aim.

[0009]

A disposable absorbent article according to claim 1 is a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-permeable top sheet and a liquid-impermeable back sheet. An absorbent article main body formed of an absorbent body disposed between the absorbent article main body and an outer layer sheet superposed on and bonded to the liquid-impermeable back sheet of the absorbent article main body, and the back waistline portion An absorbent article body in which a crotch part having leg parts on both sides and an abdominal waist part are sequentially integrally formed in the longitudinal direction, and the absorber is arranged at least in the crotch part. A back waist elastic body and an abdominal waist elastic body that expands and contracts in the width direction of the outer layer sheet are disposed in the back waist portion and the abdominal waist portion of the outer layer sheet of the absorbent article body. However, at least the liquid-impervious backsheet is at both longitudinal ends of the absorber. And both sides in the width direction of the absorbent article, in the leg part of the absorbent article body, at least outside the width direction both side edges of the absorbent body of the liquid-impermeable back sheet and the outer layer sheet. The overlapped portion of the extended portion is formed in a non-fixed portion, and the liquid-impervious back sheet has legs on both sides from the back waist region and the abdominal waist region of the liquid impermeable back sheet. A first elastic body and a second elastic body are disposed in the peripheral portion, and the first elastic body has both end sides extending from the back waist portion to the leg portion in the width direction of the liquid-impermeable backsheet. Are arranged along both side edge portions of the intermediate portion, and the middle portion is bent in a direction crossing the crotch portion so as to be arranged in the width direction between the liquid impermeable backsheets at the crotch portion. Both ends of the elastic body extend from the abdominal waistline to the leg areas on both sides in the width direction of the liquid impermeable backsheet. Along in which it is disposed in the crotch around portion bent in a direction intermediate portion crossing the crotch around portions in the width direction between the liquid-impermeable back sheet while disposed.

Since at least the liquid-impervious backsheet of the absorbent article extends outward from both longitudinal ends and both lateral edges of the absorbent body, excretion not absorbed by the absorbent body. It is possible to prevent the liquid from leaking to the outer sheet side. Moreover, since the leg parts are formed on both sides of the crotch part of the outer layer sheet, the disposable absorbent article can be attached to the wearer's body in close contact with it.

Further, at least the liquid-impervious backsheet of the absorbent article body extends outward from both longitudinal end portions and both widthwise edge portions of the absorbent body, and the first and second elastic bodies are Both end sides are arranged along the widthwise both side edges of the liquid impermeable back sheet from the dorsal waistline portion and the abdominal waistline portion to the leg waist portion, and the middle portion is a direction crossing the crotch portion. In the crotch around the crotch region, the liquid impermeable back sheet and the outer layer sheet are arranged in the width direction, and in the leg parts of the absorbent article, the liquid impermeable back sheet and the outer layer sheet are provided. Since the overlapping portion of the portion extending outward from both side edges of the absorbent body in the width direction is formed in the non-fixed portion,
The liquid-impervious back sheet can be increased in width dimension without being influenced by the width dimension of the outer layer sheet, and when the disposable absorbent article is worn on the wearer's body, Since the leg part of the back sheet does not depend on the stress of the leg part of the outer layer sheet and stands upright in the body direction of the wearer to form a three-dimensional gather and adheres to the wearer's body, a large inner The three-dimensional gathers adhere to the wearer's body even when using the pad, so that the excretory liquid does not leak to the outside, and the outer layer sheet adheres without being affected by the standing of the liquid-impermeable outer layer sheet. It can be attached to the wearer's body in a highly flexible and fit state.

[0012] A disposable absorbent article according to a second aspect of the present invention is the disposable absorbent article according to the first aspect, wherein one edge of the back waistline portion and one edge of the abdominal waistline portion of the outer layer sheet. , And the other side edge portion of the back waistline portion and the other side edge portion of the abdominal waistline portion, respectively, and the absorbent article body with a waistline side opening and a pair of leg side openings. It is formed in the shape of pants.

Since the absorbent article body is in the shape of pants, the disposable absorbent article can be attached and removed like pants while using the inner pad, and the attachment and removal can be performed easily. You can

The disposable absorbent article according to a third aspect of the present invention is the disposable absorbent article according to the first aspect, wherein backside joint portions are provided on both sides of the back waistline portion of the outer layer sheet, and the ventral side is provided. Provided on both sides of the waistline are ventral side coupling sections that are detachably coupled to the two dorsal side coupling sections.When using, one dorsal side coupling section and one ventral side coupling section are coupled. In addition, the other dorsal side coupling portion and the other abdominal side coupling portion are respectively coupled, and the absorbent article body is formed into a pants shape having a waist side opening and a pair of leg side openings. is there.

Then, the back side joint portion and the abdominal side joint portion, which are respectively disposed on both side edges of the back waistline portion and the abdominal waistline portion of the absorbent article body, can be engaged and disengaged to make the absorbent article body. Can be attached to or removed from the body of the wearer, and since the inner pad can be attached to or removed from the body of the wearer and the absorbent article body, It can be easily replaced.

[0016] A disposable absorbent article according to a fourth aspect of the present invention is the disposable absorbent article according to any one of the first to third aspects, wherein the first elastic body and the second elastic body are absorbent. The first elastic body intersects at the leg part of the article and is arranged across the crotch part on the abdominal waist part side rather than the substantially central part in the longitudinal direction of the leg part, and the second elastic body is provided. The body is disposed across the crotch region on the back waist region side rather than the longitudinal center of the leg region.

Then, the first elastic body and the second elastic body are arranged continuously along both widthwise edges of the liquid-impervious backsheet, and the absorbent article body The liquid-impermeable back sheet in the vicinity of the leg parts faces the upright direction to form a solid gather.

[0018] A disposable absorbent article according to a fifth aspect of the present invention is the disposable absorbent article according to any one of the first to fourth aspects, in the vicinity of both side edges of the absorbent body in the longitudinal direction of the absorbent body. Along with each other, the two liquid-impermeable sheets are symmetrically overlapped with a gap between the inner edges facing each other, and the inner edge side of both the liquid-impermeable sheets and the liquid-permeable surface sheet are not fixed to each other. And the outer edges of the liquid-impervious sheet are fixed to the surface of the absorbent article body, and the third elastic bodies are arranged along the inner edges of the liquid-impermeable sheets. It was set up.

Then, when the absorbent article body is attached to the body of the wearer, the third elastic bodies respectively arranged along the inner edge portions of both liquid-impermeable sheets exert a contracting action, The inner edge of the liquid-impervious sheet is formed by the elastic body of 2 to form a second three-dimensional gather in the inner portions of the three-dimensional gathers formed on both sides of the liquid-impermeable back sheet, thereby achieving an excretory fluid leakage prevention effect. The function of preventing the excretion liquid from leaking from the absorbent article is improved.

A disposable absorbent article according to a sixth aspect of the present invention is the disposable absorbent article according to any one of the first to fifth aspects, wherein the outer layer sheet is an outer sheet piece facing the wearer's clothes side. It is composed of an inner sheet piece facing the liquid-impermeable back sheet side, which is the skin side, and between the outer sheet piece and the inner sheet piece is a back waist elastic and a belly waist elastic. An elastic body is arranged.

The dorsal waist elastics and the abdominal waist elastics disposed between the outer sheet piece and the inner sheet piece expand and contract in the widthwise direction in substantially the entire waist portion of the outer layer sheet. As a result, the adhesiveness and fit between the absorbent article body and the body of the wearer are improved, and the function of preventing the excretion of the excreted liquid of the absorbent article body is improved.

The disposable absorbent article according to a seventh aspect of the present invention is the disposable absorbent article according to any one of the first to sixth aspects, wherein a fourth elastic member is provided along at least both sides of the outer layer sheet. The body is arranged.

When the absorbent article body is attached to the body of the wearer, the fourth elastic body disposed along at least both sides of the leg of the outer layer sheet contracts, and the fourth elastic body is contracted. When the outer layer sheets in the vicinity are fastened around the legs of the wearer on both sides of the leg parts to form the third three-dimensional gather and have the effect of preventing excretory fluid leakage, and when the absorbent article body is worn as an outer, The excretory liquid leakage prevention effect of the absorbent article body is improved, and the adhesiveness between the absorbent article body and the body of the wearer is improved.

In the method for manufacturing a disposable absorbent article according to the present invention, the elongated first elastic cord-like body and the second elastic body are provided on the elongated first liquid-impermeable back sheet body. Arranging the string-shaped bodies symmetrically to each other and alternately bending them in the width direction, arranging the string-shaped bodies in the longitudinal direction of the elongated first liquid-impervious backsheet body, and coupling them; A long second liquid-impermeable back sheet body is superposed on the first long liquid-impermeable back sheet body while sandwiching the first elastic string body and the second elastic string body. Forming a long liquid-impervious backsheet component by bonding them together, and the first elastic cord-like body and the second member on the long second liquid-impermeable backsheet body. The absorbent body is located at a position close to the elastic cord-like body, and the absorbent body is arranged such that the longitudinal direction of the absorbent body is aligned with the width direction of the elongated second liquid impermeable back sheet body. And bonding, and a step of arranging and bonding a long liquid-permeable surface sheet body with the absorber interposed therebetween on the long second liquid-impermeable back sheet body. ing.

Also, the first and second long liquid-impervious backsheets sandwiching the first elastic cord and the second elastic cord and the long strip sandwiching the absorber. The liquid permeable surface sheet body of the first elastic cord-like body and the second elastic cord body between the adjacent absorbent bodies.
Of the long liquid-impervious backsheet constituent member and the long liquid-permeable topsheet body in the portion most distant from the elastic string-shaped body of the first elastic cord-like member from both sides in the width direction. The body and the second elastic cord are cut along both ends, and an absorbent body is disposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and the back waistline and both sides are arranged. The crotch part having leg parts and the abdominal waist part are sequentially formed integrally in the longitudinal direction, at least the absorber is disposed in the crotch part, and the first elastic body has both end parts. It is arranged along the side edge in the width direction of the liquid-impervious backsheet from the back waistline to the leg zones, and the middle part is bent in a direction transverse to the crotch part to cause this defect in the crotch part. The second elastic body is disposed in the liquid-permeable back sheet in the width direction, and the second elastic body has both end portions from the abdominal waist portion to the leg portion. The liquid-impermeable back sheet is arranged along the side edges in the width direction of the liquid-impermeable back sheet and is coupled to the liquid-impermeable back sheet. And forming a bonded absorbent article body portion.

Further, a long elastic member for the back waist and a long elastic member for the waist of the abdomen are provided on both sides in the width direction on the long outer sheet body in the longitudinal direction of the long outer sheet body. A step of arranging and fixing a plurality of pieces in parallel, and stacking a long inner sheet body with the back waist elastic member and the abdominal waist elastic member sandwiched on the long outer sheet body A step of forming a long outer layer sheet constituting material which is arranged and joined together, and on the long outer layer sheet constituting material, the longitudinal direction of the absorbent article main body portion is directed in the width direction of the outer layer sheet constituting material. This absorbent article main body portion is disposed, and at least a portion of the leg portion of the absorbent article main body portion that extends outward from both lateral edges of the absorbent body of the liquid-impermeable backsheet and the outer layer sheet. Inseam of the body of the absorbent article, except for the overlapping portion with the component In a portion where the liquid-impermeable backsheet of the portion where the absorbent body is disposed is bonded onto the outer layer sheet constituent material, and the outer layer sheet constituent material is folded in two from the widthwise central portion along the longitudinal direction, A step of joining the adjacent absorbent article main body portions in the width direction to form a joint portion, and forming a waist-side opening between the joint portions; and the joint portion in the width direction of the outer layer sheet constituent material. Cut into, an outer layer sheet, and a back waistline part, a crotch part having leg parts on both sides, and an abdominal waistline part are sequentially and integrally formed in the longitudinal direction, and at least the absorbent body And a step of forming an absorbent article body in which the crotch part is disposed in the crotch region.

While moving the long liquid-impervious backsheet constituent material, the first elastic cord-shaped body, the second elastic cord-shaped body, and the long liquid-permeable topsheet body in the longitudinal direction. The absorbent article main body can be manufactured by stacking them in order, and is formed by cutting a long liquid-impermeable backsheet constituent material and a long liquid-permeable topsheet body sandwiching the absorber in the width direction. Since the absorbent article main body can be disposed on the outer layer sheet constituting material that is moved in the longitudinal direction without changing the orientation in the longitudinal direction and the width direction, the efficiency of the manufacturing process of the disposable absorbent article can be improved. Therefore, the manufacturing can be facilitated.

Further, the first elastic cord and the second elastic cord are reciprocated in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member, whereby the first elastic cord-shaped member is reciprocated. The string-shaped body and the second elastic string-shaped body are symmetrically opposed to each other and alternately bent in the left-right direction, and are arranged in the longitudinal direction of the elongated first liquid-impermeable backsheet body to be joined. Therefore, the first elastic body and the second elastic body are provided with a long liquid impermeability from a direction perpendicular to the longitudinal flow direction of the long impermeable back sheet constituent material. The disposable absorbent article can be easily manufactured without the need for disposing it on the back sheet constituent material.

Further, the outer layer sheet constituent material is folded in two from the widthwise central portion along the longitudinal direction, the absorbent article main body portions are joined in the width direction, and then the outer layer sheet constituent material is cut in the width direction. A disposable absorbent article formed in a pants shape can be easily manufactured.

The method for producing a disposable absorbent article according to a ninth aspect is the method for producing a disposable absorbent article according to the eighth aspect, in which the absorbent article main body portion is provided on a long outer layer sheet constituent member in a longitudinal direction. This absorbent article main body is arranged in the width direction of the outer layer sheet constituent material, and the widthwise both side edges of the absorbent body of at least the liquid impermeable backsheet of the leg part of the absorbent article main body. Except for the overlapping portion of the outer layer sheet constituent material and the portion extending further outward, in the crotch around portion of the absorbent article body portion of the liquid impermeable back sheet of the portion where the absorber is disposed. A step of joining onto the outer layer sheet constituent material and a step of folding the outer layer sheet constituent material into two along the longitudinal direction from the central portion in the width direction and joining the adjacent absorbent article main body portions in the width direction to form a joining portion. And the waist side opening is formed between the joints. And a step of cutting the connecting portion in the width direction of the outer layer sheet constituent material to have an outer layer sheet, a back waistline portion, a crotch portion having leg portions on both sides, and an abdominal waistline portion. And the step of forming an absorbent article body in which at least the absorbent body is disposed in the crotch portion, after any step of the outer layer sheet constituent material or the outer layer sheet And a step of cutting both side portions of the portion to form a pair of leg-side openings.

Then, a disposable absorbent article formed in a pants shape can be easily manufactured.

According to a tenth aspect of the present invention, there is provided a method for manufacturing a disposable absorbent article in which a long first elastic string-shaped body and a second elastic body are provided on a long first liquid-impermeable back sheet body. Arranging the string-shaped bodies symmetrically to each other and alternately bending them in the width direction, arranging the string-shaped bodies in the longitudinal direction of the elongated first liquid-impervious backsheet body, and coupling them; A long second liquid-impermeable back sheet body is superposed on the first long liquid-impermeable back sheet body while sandwiching the first elastic string body and the second elastic string body. Forming a long liquid-impervious backsheet component by bonding them together, and the first elastic cord-like body and the second member on the long second liquid-impermeable backsheet body. The absorber is located at a position close to the elastic cord-like body, and the longitudinal direction of the absorber is aligned with the width direction of the elongated second liquid impermeable back sheet body. And a step of arranging and bonding, and a step of arranging and bonding a long liquid-permeable top sheet body with the absorber interposed therebetween on the long second liquid-impermeable back sheet body. is doing.

Also, the first and second long liquid-impervious backsheets sandwiching the first elastic cord-like body and the second elastic cord-like body and the long strip sandwiching the absorber. The liquid permeable surface sheet body of the first elastic cord-like body and the second elastic cord body between the adjacent absorbent bodies.
Of the long liquid-impervious backsheet constituent member and the long liquid-permeable topsheet body in the portion most distant from the elastic string-shaped body of the first elastic cord-like member from both sides in the width direction. The body and the second elastic cord are cut along both ends, and an absorbent body is disposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and the back waistline and both sides are arranged. The crotch part having leg parts and the abdominal waist part are sequentially formed integrally in the longitudinal direction, at least the absorber is disposed in the crotch part, and the first elastic body has both end parts. It is arranged along the side edge in the width direction of the liquid-impervious backsheet from the back waistline to the leg zones, and the middle part is bent in a direction transverse to the crotch part to cause this defect in the crotch part. The second elastic body is disposed in the liquid-permeable back sheet in the width direction, and the second elastic body has both end portions from the abdominal waist portion to the leg portion. The liquid-impermeable back sheet is arranged along the side edges in the width direction of the liquid-impermeable back sheet and is coupled to the liquid-impermeable back sheet. And forming a bonded absorbent article body portion.

Further, on the both sides in the width direction on the long outer sheet body, there are long elastic members for the back waistline and elastic members for the abdominal waistline extending in the longitudinal direction of the outer sheet body. A step of arranging and fixing a plurality of pieces in parallel, and stacking a long inner sheet body with the back waist elastic member and the abdominal waist elastic member sandwiched on the long outer sheet body Forming a long outer layer sheet constituting material that is arranged and joined together, and one side in the width direction of one surface of the outer layer sheet constituting material is arranged in parallel in the longitudinal direction of the outer layer sheet constituting material. A pair of back side connecting members are provided in the outer layer sheet constituent material at intervals substantially the same as the widthwise dimension of the absorbent article main body portion, and the outer layer sheet constituent material is provided on the other widthwise side portion of the other surface of the outer layer sheet constituent material To the back side coupling member provided in parallel close to the longitudinal direction of the material A step of providing a set of detachable ventral side coupling members on the outer layer sheet constituent material at substantially the same interval as the widthwise dimension of the absorbent article body portion, and the absorbent article on the elongated outer layer sheet constituent material. The absorbent article main body is arranged with the longitudinal direction of the main body oriented in the width direction of the outer layer sheet constituent material, and the leg parts of the absorbent article main body, at least of the absorbent body of the liquid-impermeable backsheet. Except for the overlapping portion of the outer layer sheet constituent material and the portion extending outward from both side edges in the width direction, the impermeable portion of the portion where the absorber is disposed in the crotch portion of the absorbent article main body portion. A step of bonding the liquid back sheet on the outer layer sheet constituent material, and a width on a line connecting the outer layer sheet constituent material between the at least one set of back side joints and the at least one set of ventral side joints. Cut in the direction, and connect the outer layer sheet to the dorsal side and the ventral side And a back waistline part, a crotch part having leg parts on both sides, and an abdominal waistline part are sequentially and integrally formed in the longitudinal direction, and at least the absorber is provided in the crotch part. And a step of forming the disposed absorbent article body.

While the long liquid-impervious backsheet constituent material, the first elastic cord-shaped body, the second elastic cord-shaped body, and the long liquid-permeable topsheet body are moved in the longitudinal direction. The absorbent article main body can be manufactured by stacking them in order, and is formed by cutting a long liquid-impermeable backsheet constituent material and a long liquid-permeable topsheet body sandwiching the absorber in the width direction. Since the absorbent article main body can be disposed on the outer layer sheet constituting material that is moved in the longitudinal direction without changing the orientation in the longitudinal direction and the width direction, the efficiency of the manufacturing process of the disposable absorbent article can be improved. Therefore, the manufacturing can be facilitated.

Further, the first elastic cord-like body and the second elastic cord-like body are reciprocated in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent material, whereby the first elastic cord-like body is reciprocated. The string-shaped body and the second elastic string-shaped body are symmetrically opposed to each other and alternately bent in the left-right direction, and are arranged in the longitudinal direction of the elongated first liquid-impermeable backsheet body to be joined. Therefore, the first elastic body and the second elastic body are provided with a long liquid impermeability from a direction perpendicular to the longitudinal flow direction of the long impermeable back sheet constituent material. The disposable absorbent article can be easily manufactured without the need for disposing it on the back sheet constituent material.

Further, there are dorsal side coupling portions on both sides of the back waistline portion of the outer layer sheet, and abdominal sides that are detachably coupled to both sides of the abdominal waistline portion, respectively. A disposable absorbent article having a joint can be easily manufactured.

The method for producing the disposable absorbent article according to claim 11 is the method for producing the disposable absorbent article according to claim 10, wherein the outer layer sheet constitution is provided on one side in the width direction of one surface of the outer layer sheet constituent material. Providing a set of back side coupling members juxtaposed in parallel in the longitudinal direction of the material on the outer layer sheet constituent material at substantially the same interval as the widthwise dimension of the absorbent article main body portion,
A pair of belly-side coupling members that can be engaged and disengaged with the back-side coupling members that are provided in parallel on the other side portion in the width direction of the other surface of the outer-layer sheet constituent material in proximity to the longitudinal direction of the outer-layer sheet constituent material are provided. A step of providing the outer layer sheet constituting material at substantially the same distance as the widthwise dimension of the absorbent article main body, and the lengthwise direction of the absorbent article main body on the long outer layer sheet constituting material, the width of the outer layer sheet constituting material This absorbent article main body portion is arranged in the direction, and extends outward from at least the widthwise both side edges of the absorbent body of the liquid-impervious backsheet of the leg part of the absorbent article main body portion. Except for the overlapping portion of the portion and the outer layer sheet constituent material, the liquid impermeable backsheet of the portion in which the absorber is disposed in the crotch part of the absorbent article body portion is bonded onto the outer layer sheet constituent material. And the at least one outer layer sheet constituent material. A widthwise cut on a line connecting between the back side connecting parts and between the at least one set of ventral side connecting parts, and having an outer layer sheet, a back side connecting part and an abdominal side connecting part, and a back side waistline Part, a crotch part having leg parts on both sides, and an abdominal waist part are sequentially and integrally formed in the longitudinal direction to form an absorbent article body in which at least the absorber is arranged in the crotch part. After any one of the steps, there is provided a step of cutting both sides of the crotch part of the outer layer sheet constituent material or the outer layer sheet to form leg parts.

Then, the disposable absorbent article in the unfolded state can be easily manufactured.

[0040]

BEST MODE FOR CARRYING OUT THE INVENTION The configuration of an embodiment of a disposable absorbent article of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the disposable absorbent article is, for example, a disposable diaper and includes a diaper body 1 as an absorbent article body. The diaper body 1 is worn along the body from the back side of the wearer to the abdomen side of the diaper, incontinence or the like in the unfolded state shown in FIG. .

The diaper body 1 has an absorbent article body 4a composed of a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorber 4, and an outer layer sheet 5. There is.

The liquid-permeable topsheet 2 is made of, for example, a woven cloth so that the absorbent body 4 can absorb excreted liquid such as urine.
It is made of non-woven fabric, porous film, synthetic fiber, etc. that is liquid-permeable and breathable, and is a sheet material that feels like underwear so as not to cause discomfort because it is a portion that directly contacts the body. .

Further, the liquid-impervious back sheet 3 is for preventing other clothes such as underwear or sheets from being contaminated by excreted liquid such as urine. For example, synthetic resin such as polyethylene resin. The first liquid-impermeable back sheet piece 6a having liquid impermeability and air permeability and the second liquid-impermeable back sheet piece 6b are formed by superposition and adhesion.

The absorbent body 4 is made of, for example, a material mainly composed of pulp and containing a substance such as a polymer absorbent partially in order to sufficiently absorb excreted liquid such as urine. The absorbent core 4 is formed in a sheet shape and has a smaller lengthwise and widthwise dimension than the liquid-permeable topsheet 2, and both side edges of the absorbent body 4 have a substantially middle portion in the longitudinal direction directed inward in a substantially concave shape. It is formed in a notched substantially elongated rectangular shape.

The absorbent body 4 is disposed between the liquid-permeable front sheet 2 and the liquid-impermeable back sheet 3 at approximately the center of the liquid-impermeable back sheet 3. The sheet 2 and the liquid-impermeable backsheet 3 extend outwardly from both longitudinal end portions and widthwise both edge portions of the absorbent body 4, and the extending peripheral edge portion of the liquid-permeable topsheet 2 has this impermeability. The liquid-permeable backsheet 3 is bonded to the liquid-permeable backsheet 3 with an adhesive or the like, and the absorbent body 4 is sealed by the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3. The liquid back sheet 3 and the absorbent body 4 form an absorbent article body 4a.

In the absorbent article body 4a, a back waistline portion 8, a crotch portion 9 and an abdominal waistline portion 10 are formed integrally in this order in the longitudinal direction, and the back side of the absorbent article body portion 4a is formed. The waistline portion 8 and the abdominal waistline portion 10 are notched on both sides in a concave shape, and leg portions 11a are formed on at least both sides of the crotch portion 9 and the first liquid impermeable back sheet piece 6a is formed. A first elastic body 12 and a second elastic body 13 which will be described later and are made of thin cord rubber or the like are arranged between the first and second liquid impermeable back sheet pieces 6b in a stretched state. It has been fixed.

Further, both ends of the first elastic body 12 are arranged along both widthwise edges of the liquid-impermeable backsheet 3 from the back waistline portion 8 to the legline portion 11a. An intermediate portion is bent in a direction crossing the crotch portion 9 at a substantially central portion in the longitudinal direction of the leg portion 11a, and the crotch portion 9 is arranged in the width direction.

Both ends of the second elastic body 13 are arranged along both widthwise edges of the liquid impermeable backsheet 3 from the abdominal waistline portion 10 to the legline portion 11a. An intermediate portion is bent in a direction crossing the crotch portion 9 at a substantially central portion in the longitudinal direction of the leg portion 11a, and the crotch portion 9 is arranged in the width direction.

The first elastic body 12 and the second elastic body 13 are the leg parts 11 of the liquid impermeable backsheet 3.
The middle portion of the first elastic body 12 intersects at a substantially central portion in the longitudinal direction of a, and in the vicinity of the central portion in the width direction of the crotch portion 9, the central portion in the longitudinal direction of the liquid impermeable backsheet 3 is Is also disposed on the abdominal waistline portion 10 side, and the middle portion of the second elastic body 13 is in the longitudinal direction of the liquid impermeable backsheet 3 in the vicinity of the widthwise central portion of the crotch portion 9 It is arranged on the back waistline portion 8 side with respect to the central portion.

The outer layer sheet 5 is formed by superimposing an inner sheet piece 15 having gas permeability and liquid impermeability on an outer sheet piece 14 having liquid impermeability and integrally bonding them.

In the outer layer sheet 5, the back waistline part 8, the crotch part 9 and the abdominal waistline part 10 are formed integrally in the longitudinal direction of the diaper body 1 in the expanded state. The crotch part 9 is formed in a rectangular shape that is substantially line-symmetric with respect to the center line, and both leg edges in the width direction of the crotch part 9 are cut out in a concave arc shape to form leg parts 11.

The back waistline portion 8 of the outer layer sheet 5 is formed in a substantially rectangular shape whose width direction is long. In the back waistline portion 8, the outer sheet piece 14 and the inner sheet piece 15 are formed. A back waistline elastic body 16 formed of a plurality of elongated cord-shaped elastic members is arranged and fixed in the widthwise direction between the two in a stretched state.

The abdominal waistline portion 10 of the outer layer sheet 5
Like the back waistline portion 8, it is formed in a substantially rectangular shape that is long in the width direction. In the abdominal waistline portion 10, a plurality of sheets are provided between the outer sheet piece 14 and the inner sheet piece 15. An abdominal waist elastic 17 formed of an elongated string-like elastic member is arranged and fixed in the width direction in an expanded state.

Then, the leg portions 11 on both sides of the outer layer sheet 5
Along the outer sheet piece 14 and the inner sheet piece 15, the fourth elastic bodies 18, 18 are arranged and fixed in a stretched state.

Further, on both sides of the inner sheet piece 15 in the back waistline portion 8 of the outer layer sheet 5, a back side connecting portion formed by a pair of surface fasteners arranged in close proximity to each other in the longitudinal direction.
19, 19, 19, 19 are provided, and the abdominal waist 10
At both sides of the outer sheet piece 14
A set of ventral joints 20 and 20 formed by detachable hook-and-loop fasteners are provided on 19, 19, 19, and 19.

Further, in the substantially central portion of the outer layer sheet 5,
The absorbent article main body portion 4a having the liquid-permeable topsheet 2, the liquid-impermeable backsheet 3, and the absorber 4 is arranged in an overlapping manner, and the absorber 4 of the liquid-impervious backsheet 3 is arranged. The portion where is disposed is fixedly bonded by the adhesive 3a or the like. The overlapping portion of the liquid-impervious back sheet 3 and the outer layer sheet 5 is formed from a portion extending outward from both widthwise edges of the absorber 4 and both longitudinal end portions of the absorber 4. The non-fixed portion is formed from the outwardly extending portion to both longitudinal end portions of the liquid impermeable backsheet 3, and
Both longitudinal ends of the liquid impermeable backsheet 3 are fixedly bonded to the outer layer sheet 5 with an adhesive 3a or the like.

The lengthwise and widthwise dimensions of the outer layer sheet 5 are larger than the lengthwise and widthwise dimensions of the liquid-impermeable backsheet 3.

Further, in the vicinity of both side edges of the absorbent body 4, two liquid-impervious sheets 2 are provided along the longitudinal direction of the absorbent body 4.
1, 21 are symmetrically overlapped with a gap between the inner edges facing each other. Then, the inner edge portions of the two liquid-impermeable sheets 21 and 21 and the absorbent article main body portion.
The liquid-permeable topsheet 2 of 4a is formed at the free ends that are not fixed to each other, and the outer edges of the two liquid-impervious sheets 21 and 21 are the width direction of the liquid-permeable topsheet 2. Are fixed to the extending portions on both sides with an adhesive or the like. Then, on the two liquid-impermeable sheets 21 and 21, the third elastic bodies 22 and 22 are respectively arranged in a stretched state along the inner edge portions of the free ends and fixed by an adhesive. ing.

The liquid-impervious sheets 21, 21 are for preventing other clothes such as underwear or sheets from being soiled with excrement liquid such as urine, like the liquid-impermeable back sheet 3. Further, for example, it is formed of a sheet material having liquid impermeability and air permeability such as synthetic resin such as polyethylene resin. Further, since the liquid-impermeable sheets 21 and 21 are portions that directly contact the body like the liquid-permeable surface sheet 2, they are formed of a sheet material having a feel close to that of underwear.

Then, an absorbent article body 4a composed of the liquid-permeable topsheet 2, the liquid-impermeable backsheet 3 and the absorber 4 is disposed on the surface of the outer layer sheet 5,
A diaper body 1 in which liquid-impermeable sheets 21 and 21 are symmetrically superposed on the outer surface of the liquid-permeable surface sheet 2, respectively.
1, as shown in FIG. 1, a dorsal waistline portion 8, a crotch girth portion 9, and an abdominal waistline portion 10 are formed integrally in order in the longitudinal direction. It has a section 11.

The back waistline portion 8 of the diaper body 1 is formed on one end side in the longitudinal direction of the diaper body 1 in the unfolded state, and the diaper body 1 is appropriately bent from the unfolded state so that It is located on the back of the waist.

The crotch portion 9 of the diaper body 1 is integrally formed continuously with the longitudinal middle portion of the back waistline portion 8 in the longitudinal direction of the diaper body 1 in the unfolded state. The torso diaper body 1 is appropriately bent to be a portion located at the crotch of the wearer. In addition, the widthwise dimension of the leg circumference portion 11 formed in a concave arc shape on both side edges of the crotch waist portion 9 is smaller than the widthwise dimensions of the back waist portion 8 and the abdominal waist portion 10, and Adapted to the legs around.

Further, the abdominal waist portion 10 of the diaper body 1
Is continuously and integrally formed on the other end side in the longitudinal direction of the diaper body 1 in the deployed state on the side opposite to the crotch portion 9 and the back waistline portion 8, and the diaper body 1 is appropriately folded from this deployed state. Therefore, it is a portion located on the abdomen side around the waist of the wearer.

Next, the operation of the above embodiment will be described.

First, at the time of wearing, the back waistline portion 8 of the disposable diaper body 1 in the unfolded state shown in FIG. 1 is placed on the wearer's waist and the liquid permeable surface sheet 2 side is placed on the wearer's skin side. In this state, the liquid permeable surface sheet 2 located on the upper surface is bent along the wearer's inseam, the crotch part 9 is applied to the inseam, and the abdominal waist part 10 is attached to the wearer's abdomen. Apply to the side. In this state, apparently this first elastic body
The second elastic body 12 and the second elastic body 13 are disposed on substantially the entire side edge portions of the liquid-impervious backsheet 3, and the first elastic body 12 and the second elastic body 13 are crotch of the diaper body 1. The first elastic body 12 and the second elastic body 13 are impermeable to liquid because they intersect in the substantially central portion of the lower part 9 and are arranged in the width direction at the position of the absorber 4 in the crotch part 9. The liquid-impervious backsheet 3 is shrunk in the longitudinal direction over substantially the entire side edges of the liquid-permeable backsheet 3, and the side edges of the liquid-impervious backsheet 3 are erected to form three-dimensional gathers. In the crotch part 9 near the center of the body 1 in the longitudinal direction, the liquid-impervious backsheet 3 is contracted in the width direction, so that the shape of the diaper body 1 can be easily attached to the wearer's body. The property is improved.

Then, due to the contraction of the third elastic body 22, the inner edge of the liquid-impermeable sheet 21 rises in a wall-like protruding state to form a second three-dimensional gather. Due to the elasticity of the third elastic body 22, the tip edge of the three-dimensional gather is in close contact with both sides of the crotch of the wearer.

The liquid-permeable top sheet 2, the liquid-impermeable back sheet 3, the absorbent body 4, and the outer layer sheet 5 have a substantially middle portion in the longitudinal direction, which corresponds to the crotch portion 9, inwardly indented. Since the leg part 11 is formed by being cut out, the diaper body 1
The size of the crotch part 9 in the width direction can be reduced to form a shape that easily fits to the wearer's body.

Further, the third layer disposed on the liquid-impervious sheet 21.
Even if a large inner pad having a shape in which a substantially concave narrowed portion is provided between the second solid gathers formed by the liquid impermeable sheet 21 by the elastic body 22 is used, excretion of the excretory liquid is caused. There is no.

Further, the back waistline portion 8 and the abdominal waistline portion
Both sides of 10 are applied around the waist, and dorsal joints 19, 19, 19, 19 on both sides of the back waist 8 and ventral joints 20, 20 on both sides of the abdominal waist 10. Is attached to the wearer by abutting and coupling.

Since the dorsal waist elastic 16 and the abdominal waist elastic 17 are disposed in substantially the entire area of the back waist 8 and the abdominal waist 10, the back waist is provided. Waist area 8
Elasticity can be obtained in the entire area of the abdominal waist 10 and the waist can be prevented from being over-tightened, and the elasticity of the back waist 8 and the abdominal waist 10 adheres to the body due to the elasticity, and excretion liquid such as urine Can be prevented and the back waistline portion 8 and the abdominal waistline portion 10 can be prevented from stretching and tightening even if the abdomen swells due to food or the like, and the wearing comfort of the wearer can be improved.

Further, since the liquid-impervious backsheet 3 extends outward from both longitudinal ends and both lateral edges of the absorbent body 4, the excreted liquid not absorbed by the absorbent body 4. Can be prevented from leaking to the outer layer sheet 5 side, and the excreted liquid is reliably absorbed by the absorber 4.

The liquid-impervious back sheet 3 and the outer layer sheet 5 extending outward from both longitudinal ends and both lateral edges of the absorbent body 4 are the leg part 11 of the diaper body 1.
In the overlapping portion of the absorbent body 4 extending outward from both side edges in the width direction, and from the portion extending outward from both longitudinal end portions of the absorbent body 4 to both end portions of the liquid impermeable backsheet 3. Is formed in a non-fixed portion, the size of the liquid-impermeable backsheet 3 in the width direction can be increased, and when the diaper body 1 is bent, the thickness of the outer layer sheet 5 is reduced. The liquid-impermeable back sheet 3 is not hindered from bending, and the liquid-impermeable back sheet 3 is not wrinkled or distorted even when the diaper body 1 is bent.

The back waist elastic 16 and the belly waist elastic 17 are outer sheet pieces of the outer layer sheet 5.
The first elastic body 12 and the second elastic body 13 are disposed between the inner sheet piece 15 and the inner sheet piece 15, and the first elastic body 12 and the second elastic body 13 are the first liquid impermeable back sheet piece.
Since it is disposed between 6a and the second liquid-impervious back sheet piece 6b, the appearance is not impaired and the appearance can be improved, and the touch can be improved because it does not directly contact the wearer.

When the diaper body 1 is worn on the body of the wearer, the fourth elastic bodies 18 arranged along the leg parts 11 on both sides of the outer layer sheet 5 contract to contract the fourth elastic body 18. Elastic body 18
The leg part 11 of the outer layer sheet 5 in the vicinity stands upright in the body direction of the wearer and is fastened around the leg of the wearer to form a third three-dimensional gather to form the diaper body 1 on the wearer's body. The same effect as the three-dimensional gather formed on the leg portion 11a of the liquid-impermeable back sheet 3 when worn is exerted, and the same effect of preventing excretion of leakage of excreted liquid is exhibited. When worn on, the effect of preventing excretion of the diaper body 1 from leaking is improved and the adhesion between the diaper body 1 and the body of the wearer is improved.

On the other hand, when removing the diaper body 1,
The connection between both sides of the back waistline 8 and both sides of the abdominal waistline 10 is released, and the abdominal waistline 10 is pulled out and pulled out from under the waist of the wearer who is lying on his back. The diaper body 1 can be easily attached and detached,
Workability can be improved.

As described above, in the above-described embodiment, the longitudinal side portions of the diaper body 1 are located in the back waistline portion 8 and the abdominal waistline portion 10 which are connected to each other so as to be separable from each other.
A first elastic body is provided between the outer sheet piece 14 and the inner sheet piece 15.
The diaper body 1 is provided with 12 and the second elastic body 13, respectively.
Since it is stretchable in the width direction, it is not necessary to take off the clothes and lift up the waist like the conventional pants-type structure, and it is easy for the wearer who is lying down to lie down. It can be attached and detached to improve workability, and the back waistline 8 and the abdominal waistline 10 can be stretched as a whole, so that they can be tightly adhered to each other without being over-tightened. The wearing feeling of the wearer can be improved without causing the leakage of excreted liquid.

Then, the diaper body 1 can be attached to and detached from the body of the wearer by connecting and disconnecting the back side connecting portions 19, 19, 19, 19 and the abdominal side connecting portions 20, 20. Since the inner pad can be attached or detached between the wearer's body and the diaper body 1, the inner pad can be easily replaced.

The back waist elastic 16, the abdominal waist elastic 17, the third elastic body 22, the first elastic body 12 and the second elastic body 13 are strings. Not only rubber
A wide band-shaped rubber or the like may be used, and the back waist elastic body 16 and the abdominal waist elastic body 17 are not limited to being formed by a plurality of pieces, and only one formed in a plane shape may be used. You can also do it.

Further, in this embodiment, the outer edges of the liquid impermeable sheets 21 and 21 are provided on the absorbent body 4 of the liquid permeable top sheet 2.
However, the liquid-permeable topsheet 2 has a structure in which portions extending outward from both side edges of the absorbent body 4 are not overlapped. A liquid-impervious sheet having a shorter length than the extending portion of the liquid-permeable backsheet 3.
The outer edges of 21, 21 are polymerized and fixed to the extending portions of the liquid-permeable top sheet 2 and the liquid-impermeable back sheet 3.

Further, in the embodiment shown in FIGS. 1 and 2, the first elastic body 12 and the second elastic body are used.
13 intersects at a substantially central portion of the leg part 11 of the diaper body 1, and in a portion closer to the center portion in the width direction of the diaper body 1 than the intersecting portion, the middle portion of the first elastic body 12 is In the vicinity of the central portion in the width direction of the lower part 9 is arranged closer to the abdominal waist part 10 side than the central part in the longitudinal direction of the diaper body 1, and the intermediate part of the second elastic body 13 is the crotch part. Part 9
In the vicinity of the central portion in the width direction, the diaper body 1 is arranged in the width direction in a state of being arranged closer to the back waistline portion 8 side than the central portion in the longitudinal direction, but as shown in FIG. ,
In the embodiment shown in FIG. 1 and FIG. 2, the first elastic body 12 and the second elastic body 13 do not intersect at the central portion in the longitudinal direction of the diaper body 1 and the central portion in the width direction of the diaper body 1. In the leaning position, the intermediate portion of the first elastic body 12 is arranged closer to the back waistline portion 8 side than the longitudinal center portion of the diaper body 1 in the vicinity of the central portion in the width direction of the crotch portion 9. The intermediate portion of the second elastic body 13 is disposed closer to the abdominal waistline portion 10 side than the central portion in the longitudinal direction of the diaper body 1 in the vicinity of the central portion in the width direction of the crotch portion 9. It is also possible to arrange them in the width direction in each state.

In the embodiment shown in FIGS. 1 and 2, the outer layer sheet 5 of the diaper body 1 has a longitudinal dimension and a lateral dimension which are the same as those of the liquid impermeable back sheet 3. Being larger than the dimension, the longitudinal end edges and the width side edges of the liquid-impermeable back sheet 3 should not protrude outward more than the longitudinal end edges and the width side edges of the outer layer sheet 5. Although it is fixedly bonded to the outer sheet 5 at the portion where the absorbent body 4 is disposed, the leg portions 11a and 11a of the liquid impermeable back sheet 3 of the diaper body 1 are fixed as shown in FIG. Width between the outer layer sheet 5
Of the first elastic body 12 and the second elastic body 13 in the width direction more than the fourth elastic body 18 in the lateral direction. It is also possible to arrange it on both side edges.

In the diaper body 1, the first elastic body 12 and the second elastic body 13 cause the leg portions 11a, 11a on both sides of the liquid-impermeable back sheet 3 to stand up to form a three-dimensional gather. In the use state, the both side edges of the liquid-impermeable backsheet 3 hardly protrude from the both side edges of the outer layer sheet 5, and the widthwise dimension of the liquid-impervious backsheet 3 is increased so that It is possible to reliably prevent the excretion liquid from leaking.

When the diaper body 1 is worn on the body of the wearer using the inner pad, the widthwise dimension of the inner pad is larger than the widthwise dimension of the leg portion 11 of the outer layer sheet 5. Even in the case, the widthwise dimensions of the leg portions 11a, 11a of the liquid-impermeable back sheet 3 are the leg portion 1 of the outer layer sheet 5.
Between the both ends of the first elastic body 12 and the second elastic body 13 which are formed to be larger than the widthwise dimensions of 1 and 11 and are arranged along both side edges of the liquid impermeable backsheet 3 in the widthwise direction. If the inner pad is used and the widthwise dimension of the inner pad is within the dimension between the both end portions of the first elastic body 12 and the second elastic body 13, The first elastic body 12 and the second elastic body 13 are liquid-impervious backsheet 3
Since the liquid-impervious backsheet 3 is contracted in the longitudinal direction in substantially the entire area of both side edges of the liquid-permeable backsheet 3, the side edge portions of the liquid-impervious backsheet 3 are erected to reliably form a three-dimensional gather. The pad can be used to prevent the excretory liquid from leaking from the diaper body 1 and improve the adhesion between the diaper body 1 and the wearer's body.

In the embodiment shown in FIGS. 1 and 2, the fourth elastic bodies 18, 18 are arranged along both leg parts 11 of the outer layer sheet 5, but as shown in FIG. One end of the fourth elastic body 18 is disposed along both side edges of the outer layer sheet 5 in the width direction from the back waistline part 8 to the leg part 11 at both ends, and the longitudinal direction of the leg part 11 The middle part is bent in a direction crossing the crotch part 9 in the substantially central part, and is arranged in the width direction in the crotch part 9, and the other end of the fourth elastic body 18 is abdominal waistline at both ends. The part 10 to the leg part 11 are arranged along both side edges of the outer layer sheet 5 in the width direction, and the middle part is bent in a direction crossing the crotch part 9 at a substantially central part in the longitudinal direction of the leg part 11. In the crotch part 9, the fourth elastic body 18 is arranged in parallel in the width direction. The third three-dimensional gather is formed on the leg portion 11 of the outer layer sheet 5 to enhance the effect of preventing excretion of the excreted liquid when the inner pad is used together.

Next, the structure of another embodiment of the disposable absorbent article of the present invention will be described with reference to FIG.

The diaper body 1A as an absorbent article body is shown in FIG.
And one side edge portion 24 and the other side edge portion 25 of the back waistline portion 8 of the outer layer sheet 5 and the one side edge portion 26 of the abdominal waistline portion 10 of the outer layer sheet 5 in the embodiment shown in FIG. The other side edge 27
Are bonded with an adhesive or the like, and in the state where the liquid-permeable surface sheet 2 of the diaper body 1A is on the inner surface side, a waist-side opening 29 formed on the upper surface and a pair of openings formed on the lower surface. It is formed in a pants shape having leg openings 30. Other configurations are the same as the configurations shown in FIGS. 1 and 2.

Next, the operation of the above embodiment will be described.

First, at the time of wearing, since the diaper body 1A is formed in a pants shape as shown in FIG. 6, it can be easily worn on the wearer like pants.

Further, in each of the above-mentioned embodiments, the second solid gather is formed by the liquid-impervious sheets 21, 21. However, the liquid-impervious sheets 21, 21 do not necessarily have to be arranged, and the liquid-impervious sheets are not necessarily required. When the liquid sheets 21, 21 are not arranged, the liquid-impervious back sheet 3 is formed by the first and second elastic bodies 12, 13.
An inner pad is arranged and used in the three-dimensional gather formed in.

In this embodiment, when the inner pad is used, the second elastic body 22 formed by the third elastic body 22 arranged at the inner edge of the liquid impermeable sheet 21, 21 is used.
An inner pad is previously arranged between the three-dimensional gathers, and the diaper body 1A is attached to the wearer. Since the diaper body 1A has a pants shape, the diaper body 1A can be easily attached and detached like pants even when the inner pad is used.

Next, the structure of another embodiment of the disposable absorbent article of the present invention will be described with reference to FIG.

As shown in FIG. 7, a diaper body 1 as an absorbent article body is composed of a liquid-permeable topsheet 2, a liquid-impermeable backsheet 3, and an absorbent article body 4. 4a
And the outer layer sheet 5.

The liquid permeable top sheet 2 is formed of a sheet material having liquid permeability and air permeability in a substantially elongated rectangular shape so that excreted liquid can be absorbed by the absorbent body 4.

An absorber 4 is arranged on the back side of the liquid-permeable topsheet 2. The absorbent body 4 is a material that absorbs excretory liquid such as urine, for example, is a material mainly composed of pulp and partially contains a substance such as a polymer absorbent, and is substantially the same as the liquid permeable surface sheet 2. It is formed in a substantially elongated and substantially rectangular shape having the same size.

The liquid-impervious backsheet 3 is made of the first
The liquid impermeable back sheet piece 6a, the second liquid impermeable back sheet piece 6b, and the third liquid impermeable back sheet piece 6c. The third liquid impermeable back sheet piece 6c is
It is formed of a sheet piece having liquid impermeability, and its lengthwise and widthwise dimensions are slightly larger than the lengthwise and widthwise dimensions of the absorber 4. Then, the absorber 4 is disposed in the substantially central portion on the front surface side of the third liquid-impermeable back surface sheet piece 6c. The position where the absorber 4 is arranged on the back surface side of the third liquid-impermeable back surface sheet piece 6c is overlapped and adhered to the substantially central portion of the second liquid-impermeable back surface sheet piece 6b. It is fixed with an agent. The second liquid impermeable back sheet piece 6b is superposed on the first liquid impermeable back sheet piece 6a and fixed by an adhesive or the like. The first liquid impermeable back sheet piece 6a and the second liquid impermeable back sheet piece 6b are the dorsal waist waist portion (not shown), the crotch waist portion (not shown), and the abdominal side. A waistline portion (not shown) is sequentially formed integrally in the longitudinal direction.

The first liquid-impervious back sheet piece
6a and the second liquid impermeable back sheet piece 6b from the back waistline (not shown) and the abdominal waistline (not shown) at the crotch region (not shown), respectively. Between the liquid impermeable back sheet piece 6a and the second liquid impermeable back sheet piece 6b, a first elastic body 12 and a second elastic body (not shown) described later are extended. It is arranged and fixed in a closed state.

Further, the third liquid-impervious backside sheet piece 6c
The peripheral edge of the absorbent body 4 surrounds the peripheral edge of the absorbent body 4 and is bonded to the peripheral edge of the liquid-permeable surface sheet 2 at the peripheral edge of the surface side of the absorbent body 4 with an adhesive or the like. It is sealed by the top sheet 2 and the third liquid impermeable back sheet piece 6c.

The outer layer sheet 5 is formed by superimposing the breathable and liquid impermeable inner sheet piece 15 on the liquid impermeable outer sheet piece 14 and integrally combining them.

In the outer layer sheet 5, the back waistline portion (not shown), the crotch waist portion (not shown), and the abdominal waistline portion (not shown) have the longitudinal length of the diaper body 1 in the unfolded state. Direction, and is formed in a rectangular shape that is substantially line-symmetrical with respect to the center line along the longitudinal direction. The leg parts 11 are formed on both side edges of the crotch part (not shown) in the width direction. The fourth elastic bodies 18, 18 are formed in a stretched state between the outer sheet piece 14 and the inner sheet piece 15 along the leg parts 11 on both sides of the outer layer sheet 5. It is fixed.

Further, in the substantially central portion of the outer layer sheet 5,
The absorbent article main body portion 4a having the liquid-permeable topsheet 2, the liquid-impermeable backsheet 3, and the absorber 4 is arranged in an overlapping manner, and the absorber 4 of the liquid-impervious backsheet 3 is arranged. The portion where is disposed is fixedly bonded by the adhesive 3a or the like. The overlapping portion of the liquid-impervious back sheet 3 and the outer layer sheet 5 is formed from a portion extending outward from both widthwise edges of the absorber 4 and both longitudinal end portions of the absorber 4. The non-fixed portion is formed from the outwardly extending portion to both ends in the longitudinal direction of the liquid-impermeable backsheet 3, and both ends in the longitudinal direction of the liquid-impermeable backsheet 3 are the outer layer sheet 5. It is fixedly bonded to it with an adhesive or the like.

The lengthwise and widthwise dimensions of the outer layer sheet 5 are larger than the lengthwise and widthwise dimensions of the liquid-impermeable backsheet 3.

Two liquid-impervious sheets 2 are provided in the vicinity of both side edges of the absorbent body 4 along the longitudinal direction of the absorbent body 4.
1, 21 are symmetrically overlapped with a gap between the inner edges facing each other. The inner edge portions of the liquid-impermeable sheets 21 and 21 and the liquid-permeable surface sheet 2 of the absorbent article body 4a are non-fixed portions and are formed at free ends. Further, the outer edge side of the liquid-impermeable sheets 21 and 21 is disposed so as to extend outward from both side portions in the width direction of the absorbent body 4, and the liquid-impermeable back surface of the absorbent article main body portion 4a. It is fixed on the sheet 3. Then, the third elastic bodies 22 and 22 are respectively arranged and fixed to the liquid-impermeable sheets 21 and 21 along the inner edge portion of the free end in a stretched state.

The other structure is the same as that of the embodiment shown in FIGS.

Next, the operation of the above embodiment will be described.

First, in wearing, as in the embodiment shown in FIGS. 1 and 2, the diaper body 1 in the unfolded state as shown in FIG. 7 is worn in close contact with the wearer's body.

Then, due to the contraction of the third elastic body 22, the inner edge of the liquid-impermeable sheet 21 rises in a wall-like protruding state to form a second three-dimensional gather. Due to the elasticity of the third elastic body 22, the tip edge of the three-dimensional gather is in close contact with both sides of the crotch of the wearer.

Since the third liquid-impervious back sheet piece 6c is wrapped and bonded from the back side of the absorbent body 4 to the front peripheral portion, the excretion liquid absorbed by the absorbent body 4 does not leak. The excreted liquid is surely absorbed by the absorber 4.

Further, since the liquid-impervious backsheet 3 extends outward from both longitudinal ends and both lateral edges of the absorbent body 4, the excreted liquid not absorbed by the absorbent body 4. Can be prevented from leaking to the outer layer sheet 5 side, and the excreted liquid is reliably absorbed by the absorber 4.

The liquid-impervious backsheet 3 and outer layer sheet 5 extending outward from both longitudinal ends and both lateral edges of the absorbent body 4 are the leg portion 11 of the diaper body 1.
In the overlapping portion of the absorbent body 4 extending outward from both side edges in the width direction, and from the portion extending outward from both longitudinal end portions of the absorbent body 4 to both end portions of the liquid impermeable backsheet 3. Is formed in a non-fixed portion, the size of the liquid-impermeable backsheet 3 in the width direction can be increased, and when the diaper body 1 is bent, the thickness of the outer layer sheet 5 is reduced. The liquid-impermeable back sheet 3 is not hindered from bending, and the liquid-impermeable back sheet 3 is not wrinkled or distorted even when the diaper body 1 is bent.

The first elastic body 12 and the second elastic body (not shown) are composed of the first liquid impermeable back sheet piece 6a and the second liquid impermeable back sheet piece 6b. Since it is arranged between the two, the appearance can be improved and the appearance can be improved.
Since it does not directly contact the wearer, the touch can be improved.

Then, when the diaper body 1 is worn on the body of the wearer, the fourth elastic bodies 18 arranged along the leg parts 11 on both sides of the outer layer sheet 5 contract, and the fourth elastic body 18 is contracted. Elastic body 18
The leg part 11 of the outer layer sheet 5 in the vicinity stands upright in the body direction of the wearer and is fastened around the leg of the wearer to form a third three-dimensional gather to form the diaper body 1 on the wearer's body. The same effect as the three-dimensional gather formed on the leg portion 11a of the liquid-impermeable back sheet 3 when worn is exerted, and the same effect of preventing excretion of leakage of excreted liquid is exhibited. When worn on, the effect of preventing excretion of the diaper body 1 from leaking is improved and the adhesion between the diaper body 1 and the body of the wearer is improved.

On the other hand, when removing the diaper body 1,
Release the connection between both sides of the back waistline (not shown) and both sides of the abdominal waistline (not shown), and pull the abdominal waistline (not shown) to lie on your back. The diaper body 1 can be easily attached and detached because the diaper body 1 can be easily attached and detached because it can be pulled out and removed from under the waist of the wearer who is lying down, and workability can be improved.

In the above-described embodiment, both longitudinal side portions of the diaper body 1 are located at the dorsal side waist portion (not shown) and the abdominal side waist portion (not shown) which are connected to each other so as to be separable from each other. Then, the first elastic body 12 and the second elastic body (not shown) are respectively arranged between the outer sheet piece 14 and the inner sheet piece 15 to impart elasticity in the width direction of the diaper body 1. Therefore, unlike the conventional pants-type configuration, it is not necessary to remove the clothes and lift them up and down to attach / detach, and the wearer who is lying down can easily attach / detach and improve workability. , The back waistline (not shown) and the abdominal waistline (not shown) can be stretched as a whole, so that they can be tightly adhered to each other without being overtightened, and excretion of urine, etc. The wearing feeling of the wearer can be improved without causing liquid leakage.

[0115] The diaper body 1 is formed by connecting and disconnecting the dorsal side connecting portion (not shown) and the abdominal side connecting portion (not shown).
Can be put on and taken off from the wearer's body,
Furthermore, since the inner pad can be attached or detached between the wearer's body and the diaper body 1,
The inner pad can be easily replaced.

The first elastic body 12, the second elastic body (not shown), and the third elastic body 22 are not limited to the string-shaped rubber, but may be wide band-shaped rubber or the like.

Next, the structure of another embodiment of the disposable absorbent article of the present invention will be described with reference to FIG.

In the embodiment shown in FIG. 7, the outer edge portions of the liquid-impervious sheets 21, 21 are arranged so as to extend outward from both side portions of the absorbent body 4 in the width direction. Article body
Although it is configured to be fixed onto the liquid-impermeable backsheet 3 of 4a, in this embodiment, the outer edges of the liquid-impermeable sheets 21a, 21a are backside along both side edges of the absorbent body 4. It is polymerized by folding back to the side and bonded with an adhesive or the like.

As shown in FIG. 8, the diaper body 1 includes the liquid-permeable topsheet 2, the liquid-permeable topsheet 2, in the substantially central portion of the outer layer sheet 5.
A liquid-impervious back sheet 3 formed by polymerizing a first liquid-impermeable back sheet piece 6a, a second liquid-impermeable back sheet piece 6b, and a third liquid-impermeable back sheet piece 6c, And an absorbent article main body portion 4a having an absorber 4 are arranged in an overlapping manner, and a portion of the liquid-impermeable back sheet 3 on which the absorber 4 is disposed is fixedly bonded by an adhesive 3a or the like, Two liquid-impermeable sheets 21a, 21a are disposed near both side edges of the absorbent body 4.

The two liquid-impermeable sheets 21a, 21a are symmetrically overlapped with the inner edges facing each other at positions near both side edges of the absorbent body 4, respectively. The inner edge portions of the two liquid-impermeable sheets 21a and 21a and the liquid-permeable surface sheet 2 of the absorbent article body 4a are non-fixed portions and are formed at free ends. Further, the outer edge portions of the liquid-impervious sheets 21a, 21a are folded back to the back surface side along both edge portions of the absorbent body 4, and are opposed to each other with a space on the back surface side of the absorbent body 4. The two liquid-impermeable sheets are disposed between the third liquid-impermeable backsheet piece 6c and the second liquid-impermeable backsheet piece 6b of the article main body portion 4a by being polymerized. twenty one
Outer edge portions of a and 21a and the third liquid impermeable back sheet piece 6c
Contact surface with the two liquid-impervious sheets 21a, 21a
The outer edge portion of and the contact surface of the second liquid impermeable back surface sheet piece 6b are fixed to each other with an adhesive or the like. Then, on the two liquid-impermeable sheets 21a, 21a, the third elastic bodies 22, 22 are arranged along the inner edge portion of the free end in a state of being extended and fixed by an adhesive. ing.

The other structure is the same as that of the embodiment shown in FIG.

Next, the operation of the above embodiment will be described.

First, at the time of wearing, as in the embodiment shown in FIGS. 1 and 2, the diaper body 1 in the unfolded state as shown in FIG. 8 is put in close contact with the wearer's body.

Then, due to the contraction of the third elastic body 22, the inner edge of the liquid-impermeable sheet 21a rises in a wall-like protruding state to form a second three-dimensional gather. Due to the elasticity of the third elastic body 22, the tip edge of the three-dimensional gather is in close contact with both sides of the crotch of the wearer.

The second elastic body 21 is formed by the third elastic body 22 provided on the liquid-impermeable sheet 21a.
Even if a large-sized inner pad having a shape in which a substantially concave narrowed portion is provided between the three-dimensional gathers is used, the excretory liquid does not leak.

Since the third liquid-impervious back sheet piece 6c is wrapped and bonded from the back side of the absorbent body 4 to the front peripheral portion, the excretion liquid absorbed by the absorbent body 4 does not leak. The excreted liquid is surely absorbed by the absorber 4.

Further, the outer edge portions of the liquid-impervious sheets 21a, 21a are arranged along the side edge portions of the absorbent body 4 along the third liquid-impervious back sheet piece 6c and the second liquid-impermeable back sheet. Since it is disposed between the absorbent body 4 and 6b, the leakage preventing effect of the excreted liquid absorbed by the absorbent body 4 is enhanced, and the excreted liquid is reliably absorbed by the absorbent body 4.

The other operations are the same as those of the embodiment shown in FIG.

Although the disposable diapers have been described in the embodiments shown in FIGS. 1 to 8, they can be applied to various absorbent articles.

Next, an embodiment of the method for manufacturing a disposable absorbent article of the present invention will be described with reference to FIGS.

A diaper body 1B which is an absorbent article body manufactured by this manufacturing method is obtained by connecting the ends of the back waistline portion 8 and the ventral waistline portion 10 as shown in FIG. The waist-shaped opening 29 is formed on the upper surface, and the pair of leg-side openings 30, 30 is formed on the lower surface by the side leg parts 11 to form a pair of pants.

First, by the process shown in FIG. 9, on the long first liquid-impervious backsheet 31 moved in the longitudinal direction,
Long first elastic cord-like body 32 and second elastic cord-like body 33
Are extended, respectively, symmetrically opposed to each other, alternately bent in the width direction, arranged in the longitudinal direction of the long first liquid-impermeable backsheet body 31, and bonded by an adhesive or the like. .

Next, by the process shown in FIG. 10, the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 are provided on the elongated first liquid-impermeable back sheet body 31. The long second liquid-impervious backsheet member 34 is overlapped and sandwiched and bonded with an adhesive or the like to form a long liquid-impervious backsheet constituent member 36.

Next, by the process shown in FIG. 11, the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 are formed on the elongated second liquid-impermeable backsheet body 34. The absorber 4 is located at a position close to and is arranged so that the longitudinal direction of the absorber 4 is aligned with the width direction of the elongated second liquid-impermeable backsheet 34, and is bonded by an adhesive or the like. To do.

Next, by the process shown in FIG. 12, a long liquid permeable front sheet body 35 is disposed on the second long liquid impermeable back sheet body 34 with the absorber interposed therebetween. And bond with adhesive.

Next, by the process shown in FIG.
Of the elastic string-like body 32 and the second elastic string-like body 33 sandwiched between the first and second elongated liquid-impervious backsheets 31, 34 and the absorbent body 4 sandwiched therein. The liquid surface sheet body 35 is provided with a long opaque material at a portion where the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 between the adjacent absorbent bodies 4 and 4 are most distant from each other. In the width direction of the liquid back sheet constituent member 36 and the long liquid permeable front sheet member 35, first elastic cords 32 are provided from both sides.
Then, the absorbent article body 4a is formed by cutting along the both ends of the second elastic cord 33.

Absorbent article body 4a manufactured in this process
Is a liquid-permeable topsheet 2 formed of a long liquid-permeable topsheet body 35 and a liquid-impermeable backsheet 3 formed of a long liquid-impervious backsheet component 36. The absorbent body 4 is disposed between them, and the back waistline part 8, the crotch part 9 having leg parts 11 on both sides, and the abdominal waistline part 10 are formed integrally in this order in the longitudinal direction. The absorber 4 is arranged in the crotch part 9 and is formed by the first elastic cord-like body 32.
Is disposed at both ends along the widthwise side edge of the liquid-impermeable backsheet 3 from the back waistline portion 8 to the legline portion 11, and the middle portion is connected to the crotch portion 9 The second elastic body 13 formed by the second elastic cord-like body 33, which is bent in the transverse direction and is arranged in the width direction on the liquid impermeable backsheet 3 at the crotch around portion 9, has both end portions. From the abdominal waist part 10 to the leg parts 11 along the side edge of the liquid-impermeable backsheet 3 in the width direction, and the middle part is bent in a direction crossing the crotch part 9. In the crotch portion 9, the liquid-impermeable backsheet 3 is disposed in the width direction and joined.

Then, by the process shown in FIG. 14, the long outer sheet 37 is moved in the longitudinal direction on both sides in the width direction on the long outer sheet 37 which is moved in the longitudinal direction. A plurality of back waist elastic members 38 and abdominal waist elastic members 39 are arranged in parallel in a stretched state and fixed.

Next, by the process shown in FIG. 15, the back side waist elastic member 38 and the abdominal waist elastic member 39 are sandwiched and lengthened on the long outer sheet body 37. A long outer layer sheet constituent material 41 is formed by stacking and arranging long inner sheet bodies 40.

Next, in the step shown in FIG. 16, the absorbent article main body portion 4a formed in the step shown in FIG. This absorbent article main body 4a extends in the width direction of the material 41.
And a portion of the leg part 11 of the absorbent article main body 4a that extends outward from at least both widthwise edges of the absorbent body 4 of the liquid-impermeable backsheet 3 of the absorbent article body 4a. The liquid-impermeable backsheet 3 of the portion where the absorbent body 4 is disposed in the crotch part 9 of the absorbent article main body portion 4a except the overlapping portion with 41 is adhered onto the outer layer sheet constituent material 41. Combine with agents.

Next, by the process shown in FIG. 17, the outer layer sheet constituent material 41 is removed from the widthwise central portion along the longitudinal direction by 2 steps.
By folding the absorbent article main body portions 4a, 4a adjacent to each other in the width direction with an adhesive or the like to form the joint portion 42, the waistline side opening portion 29 is formed between the joint portions 42, 42. After the outer layer sheet constituting material 41 is formed, the outer layer sheet constituting material 41 is cut from both side positions of the crotch portion 9 of the absorbent article main body portions 4a, 4a to form a pair of legs around the diaper body 1B. The side openings 30, 30 are formed.

Then, according to the process shown in FIG. 18, the joining portion 42 of the outer layer sheet constituting material 41 folded in two is cut in the width direction along the center position of the joining portion 42 to form an absorbent article. Form the diaper body 1B. The diaper body 1B thus formed has the outer layer sheet 5 formed of the outer layer sheet constituting material 41, the back waistline portion 8 and the crotch region 9 having leg portions 11 on both sides, And ventral waist 10
Are sequentially and integrally formed in the longitudinal direction, and at least the absorber 4 is disposed in the crotch portion 9.

A long liquid-impervious back sheet constituent material
36, the first elastic cord-shaped body 32, the second elastic cord-shaped body 33, and the long liquid-permeable surface sheet body 35 are sequentially stacked while moving in the longitudinal direction to manufacture the absorbent article main body 4a. The absorbent article main body portion 4a formed by cutting the long liquid-impervious backsheet constituent material 36 and the long liquid-permeable front sheet body 35 sandwiching the absorber 4 in the width direction is Since it can be arranged on the outer layer sheet constituent member 41 which is moved in the longitudinal direction without changing the direction in the longitudinal direction and the width direction, the efficiency and manufacturing of the manufacturing process of the diaper body 1B as an absorbent article are improved. Can be facilitated.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 can be arranged and coupled to each other, the first elastic body 12 and the second elastic body 13 are orthogonal to the flow direction of the long liquid-impervious backsheet constituent member 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1B can be easily manufactured.

Further, the outer layer sheet constituent material 41 is folded in two along the longitudinal direction from the central portion in the width direction to form the absorbent article main body portion 4
a and 4a are joined together in the width direction to form a joint 42, and a waist-side opening 29 is formed between the joints 42 and 42; and the joint 42 is connected to the outer layer sheet constituent material 41. By providing the step of cutting in the width direction, the pants-shaped diaper body 1B can be easily manufactured.

Next, another embodiment of the method for producing a disposable absorbent article of the present invention will be described with reference to FIGS. 9 to 15, 18 and 22, 23.

In the above embodiment, the outer layer sheet constituent material 41 is cut from both side positions of the crotch around portion 9 of the absorbent article main body portions 4a, 4a to form a pair of leg side opening portions 30, 30 in the diaper body 1B. In the step of forming, the outer layer sheet constituent material 41 is folded in two from the widthwise central portion along the longitudinal direction, and the adjacent absorbent article main body portions 4a, 4a are bonded in the widthwise direction with an adhesive or the like. Although it is performed after the step of forming the portion 42, in the present embodiment, the longitudinal direction of the absorbent article main body portion 4a is the width direction of the outer layer sheet constituent material 41 on the long outer layer sheet constituent material 41. The absorbent article main body 4a is disposed toward the outside, and the outer circumference of at least the widthwise both side edges of the absorbent body 4 of the liquid impermeable backsheet 3 of the leg part 11 of the absorbent article main body 4a is outside. The absorbent material except for the overlapping portion with the outer layer sheet constituent material 41 of the portion extending to This is performed after the step of bonding the liquid-impermeable backsheet 3 in the portion where the absorber 4 is disposed in the crotch portion 9 of the article body 4a onto the outer layer sheet constituent material 41 with an adhesive or the like.

Therefore, in this embodiment, as shown in FIG.
5, the long inner sheet body 40 is superposed on the long outer sheet body 37 by sandwiching the back waist elastic member 38 and the abdominal waist elastic member 39 in a stretched state. 22. After the step of forming the long outer layer sheet constituent material 41 arranged and bonded by the above-mentioned process, the absorbent material formed on the long outer layer sheet constituent material 41 shown in FIG. 22 in the step shown in FIG. The absorbent article body 4a is arranged with the longitudinal direction of the article body 4a oriented in the width direction of the outer layer sheet component 41, and the absorbent body 4 is arranged in the crotch portion 9 of the absorbent article body 4a. After the step of bonding the liquid-impermeable backsheet 3 of the installed portion onto the outer layer sheet constituent material 41, the outer layer sheet constituent material 41 is moved from both side positions of the crotch part 9 of the absorbent article main body portions 4a, 4a. The pair of leg-side openings 30 and 30 in the diaper body 1B are formed by cutting.

Next, as shown in FIG. 23, the outer layer sheet constituent material 41 is folded in two from the center in the width direction along the longitudinal direction, and the space between the adjacent absorbent article body portions 4a, 4a is changed in the width direction. The bonding portion 42 is formed by bonding with an adhesive or the like.
The step of forming the waistline side opening 29 between 42, 42 is performed.

Next, by the process shown in FIG. 18, the joint 42 of the outer-layer sheet constituent material 41 folded in two is cut in the width direction along the center position of the joint 42 to form an absorbent article. The diaper body 1B is formed.

The steps shown in FIGS. 9 to 14 are the same as those in the above embodiment.

The operation of this embodiment will be described.

Long liquid-impervious backside sheet component 36, first
The elastic article-shaped body 32, the second elastic string-shaped body 33, and the long liquid-permeable surface sheet body 35 can be sequentially laminated to manufacture the absorbent article main body 4a. Since it can be arranged on the outer layer sheet constituent member 41 which is moved in the longitudinal direction without changing the direction in the longitudinal direction and the width direction, the efficiency and manufacturing of the manufacturing process of the diaper body 1B as an absorbent article are improved. Can be facilitated.

Further, the first elastic impermeable back surface 32 and the second elastic elastic reticulate body 33 are symmetrically opposed to each other and alternately bent in the width direction to form a long first impermeable back surface. Sheet body 31
Since the first elastic body 12 can be arranged and coupled in the longitudinal direction of the first elastic body 12
Also, the second elastic body 13 can be disposed and fixed in accordance with the flow direction of the long liquid-impervious backsheet constituent 36 in the longitudinal direction, and the pants-shaped diaper body 1B can be easily manufactured. You can

Next, another embodiment of the method for manufacturing a disposable absorbent article of the present invention will be described with reference to FIGS. 9 to 16 and FIGS. 24 and 25.

In the above-mentioned embodiment, the outer layer sheet constituent material 41 is cut from both side positions of the crotch around portion 9 of the absorbent article main body portions 4a, 4a to open the pair of leg-side openings 30, 30 in the diaper body 1B. The step of forming the
The absorbent article body 4a is disposed on the absorbent article body 4a with the longitudinal direction of the absorbent article body 4a oriented in the width direction of the outer layer sheet constituting material 41, and at the crotch portion 9 of the absorbent article body 4a. This is performed after the step of bonding the liquid-impermeable backsheet 3 in the portion where the absorbent body 4 is arranged onto the outer layer sheet constituent material 41 with an adhesive or the like, but in this embodiment, it is folded in two. This is performed after the step of cutting the joint portion 42 of the outer layer sheet constituent material 41 in the width direction along the center position of the joint portion 42 to form the diaper body 1B as an absorbent article body.

Therefore, in this manufacturing method, as shown in FIG.
As shown in, on the long outer layer sheet constituent material 41, the absorbent article body portion 4a is arranged with the longitudinal direction of the absorbent article body portion 4a oriented in the width direction of the outer layer sheet constituent material 41, and After the step of bonding the liquid-impermeable backsheet 3 of the portion where the absorber 4 is disposed in the crotch part 9 of the absorbent article body 4a onto the outer layer sheet constituent material 41 with an adhesive or the like, FIG. As shown in FIG. 5, the outer layer sheet constituent material 41 is folded in two from the widthwise central portion along the longitudinal direction, and the adjacent absorbent article main body portion 4
The a and 4a are joined in the width direction with an adhesive or the like to form a waist side opening 29 between the joining portions 42.

Next, as shown in FIG. 25, after cutting the joint portion 42 in the width direction of the outer layer sheet constituting material 41, the outer layer sheet 5 is moved from both side positions of the crotch portion 9 of the absorbent article main body portion 4a. A pair of leg-side openings 30 in the cut diaper body 1B,
The step of forming 30 and forming the diaper body 1B as an absorbent article body is performed.

The steps shown in FIGS. 9 to 15 are the same as those in the above embodiment.

In this embodiment, the long liquid-impervious backsheet constituent material 36, the first elastic cord-like body 32, the second elastic cord-like body 33, and the long liquid-permeable topsheet body are used. The absorbent article main body portion 4a can be manufactured by superimposing 35, and the manufacturing process of the diaper body 1B as an absorbent article can be made efficient and the manufacturing process can be facilitated, and the pants-shaped diaper body 1B can be easily manufactured. Can be manufactured.

Next, another embodiment of the method for producing a disposable absorbent article of the present invention will be described with reference to FIGS. 9 to 15 and FIG.
It will be described with reference to FIGS.

As shown in FIG. 1, a diaper body 1C which is an absorbent article manufactured by this manufacturing method has a liquid permeable top sheet 2, a liquid impermeable back sheet 3, and these liquid permeable top sheets 2 as shown in FIG. And an absorbent body 4 disposed between the liquid-impermeable backsheet 3 and the liquid-impermeable backsheet 3, and an outer layer sheet 5 superposed on and bonded to the liquid-impermeable backsheet 3, and the back waistline portion. 8, a crotch part 9 having leg parts 11 on both sides, and an abdominal waist part 10 are sequentially and integrally formed in the longitudinal direction, and at least the absorber 4 is disposed in the crotch part 9. The back waistline portion 8 and the abdominal waistline portion 10 of the outer layer sheet 5
The back waist elastic 16 and the abdominal waist elastic 17 that expand and contract in the width direction of the outer layer sheet 5 are disposed in the outer sheet 5, and the back waist is provided on both sides of the back waist portion 8 of the outer sheet 5. Side coupling part 19, 1
9, 19 and 19 are provided, and both side portions of the abdominal waistline portion 10 are provided with abdominal side coupling portions 20, 20 which are detachably coupled to the dorsal side coupling portions 19, 19, 19, 19 respectively. It is a thing.

First, according to the process shown in FIG. 9, on the elongated first liquid-impermeable backsheet body 31, which is moved in the longitudinal direction,
Long first elastic cord-like body 32 and second elastic cord-like body 33
Are extended, respectively, symmetrically opposed to each other, alternately bent in the width direction, arranged in the longitudinal direction of the long first liquid-impermeable backsheet body 31, and bonded by an adhesive or the like. .

Next, by the process shown in FIG. 10, the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 are provided on the elongated first liquid-impermeable back sheet body 31. The long second liquid-impervious backsheet member 34 is overlapped and sandwiched and bonded with an adhesive or the like to form a long liquid-impervious backsheet constituent member 36.

Next, by the process shown in FIG. 11, the first elastic cord-like body 32 and the second elastic cord-like body 33 are formed on the elongated second liquid-impermeable back sheet body 34. The absorber 4 is located at a position close to and is arranged so that the longitudinal direction of the absorber 4 is aligned with the width direction of the elongated second liquid-impermeable backsheet 34, and is bonded by an adhesive or the like. To do.

Next, by the process shown in FIG. 12, a long liquid-permeable front sheet body 35 is arranged on the second long liquid-impermeable back sheet body 34 with the absorber interposed therebetween. And bond with adhesive.

Next, according to the process shown in FIG. 13, the first
Of the elastic string-like body 32 and the second elastic string-like body 33 sandwiched between the first and second elongated liquid-impervious backsheets 31, 34 and the absorbent body 4 sandwiched therein. The liquid surface sheet body 35 is provided with a long opaque material at a portion where the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 between the adjacent absorbent bodies 4 and 4 are most distant from each other. In the width direction of the liquid back sheet constituent member 36 and the long liquid permeable front sheet member 35, first elastic cords 32 are provided from both sides.
Then, the absorbent article body 4a is formed by cutting along the both ends of the second elastic cord 33.

Absorbent article body 4a manufactured in this process
Is a liquid-permeable topsheet 2 formed of a long liquid-permeable topsheet body 35, and a liquid-impermeable backsheet 3 formed of a long liquid-impermeable backsheet constituent member 36. An absorber 4 is disposed between the back side waist part 8, a crotch part 9 having leg parts 11 on both sides, and an abdominal waist part 10 are integrally formed in the longitudinal direction. The absorber 4 is arranged in the crotch part 9 and is formed by the first elastic cord-like body 32.
Is disposed at both ends along the widthwise side edge of the liquid-impermeable backsheet 3 from the back waistline portion 8 to the legline portion 11, and the middle portion is connected to the crotch portion 9 The second elastic body 13 formed by the second elastic cord-like body 33, which is bent in the transverse direction and is arranged in the width direction on the liquid impermeable backsheet 3 at the crotch around portion 9, has both end portions. From the abdominal waist part 10 to the leg parts 11 along the side edge of the liquid-impermeable backsheet 3 in the width direction, and the middle part is bent in a direction crossing the crotch part 9. In the crotch portion 9, the liquid-impermeable backsheet 3 is disposed in the width direction and joined.

Next, by the process shown in FIG. 14, the elongated outer sheet body 37 is moved in the longitudinal direction and is elongated on both sides in the width direction on the elongated outer sheet body 37 in the longitudinal direction. A plurality of back waist elastic members 38 and abdominal waist elastic members 39 are arranged in parallel in a stretched state and fixed.

Next, by the process shown in FIG. 15, the back waist elastic member 38 and the abdominal waist elastic member 39 are sandwiched and lengthened on the long outer sheet body 37 in a stretched state. A long outer layer sheet constituent material 41 is formed by stacking and arranging long inner sheet bodies 40.

Next, by the process shown in FIG. 19, a set of back sides are arranged in parallel on one side in the width direction of one surface of the outer layer sheet constituent material 41 in the vicinity of the longitudinal direction of the outer layer sheet constituent material 41. Coupling members 44, 44, 44, 44 are provided on the outer layer sheet constituent material 41 at substantially the same intervals as the widthwise dimension of the absorbent article body portion 4a, and on the other side portion in the width direction of the other surface of the outer layer sheet constituent material 41. The absorbent article main body is provided with a pair of ventral side connecting members 45, 45 that are detachable from the back side connecting members 44, 44, 44, 44 provided in parallel in the longitudinal direction of the outer layer sheet constituent material 41. The outer layer sheet constituent material 41 is provided with an interval substantially the same as the widthwise dimension of the portion 4a.

Next, by the process shown in FIG. 20, the longitudinal direction of the absorbent article main body portion 4a is oriented on the elongated outer layer sheet constituting material 41 in the width direction of the outer layer sheet constituting material 41 as shown in FIG.
The absorbent article main body portion 4a formed in the step shown in FIG. 4 is disposed, and both side edges in the width direction of the absorbent body 4 of at least the liquid impermeable backsheet 3 of the leg part 11 of the absorbent article main body portion 4a. The crotch portion 9 of the absorbent article body 4a except for the portion of the absorbent article main body 4a extending outward from the portion of the absorbent article main body 4a.
In, the liquid-impermeable backsheet 3 in the portion where the absorber 4 is disposed is bonded onto the outer layer sheet constituent material 41 with an adhesive or the like. Then, after the liquid-impervious backsheet 3 is bonded onto the outer layer sheet constituent material 41 with an adhesive or the like, the outer layer sheet constituent material 41 is positioned on both sides of the crotch part 9 of the absorbent article body portions 4a, 4a. The leg circumference portion 11 in the diaper body 1C is formed by cutting from.

Next, by the process shown in FIG. 21, the outer layer sheet constituent material 41 is attached to the set of back side connecting members 44, 44, 44 ,.
A width direction is cut along a line connecting between 44 and the pair of ventral side connecting members 45, 45. The diaper body 1C thus formed has an outer layer sheet 5, a back side joint portion 19 and an abdominal side joint portion 20, and further has a back waist portion 8 and leg portions 11 on both sides. The portion 9 and the abdominal waistline portion 10 are sequentially and integrally formed in the longitudinal direction, and at least the absorber 4 is disposed in the crotch portion 9.

Next, the operation of this embodiment will be described.

Elongated liquid-impervious backsheet component 36, first
The elastic string-shaped body 32, the second elastic string-shaped body 33, and the long liquid-permeable surface sheet body 35 are sequentially stacked while moving in the longitudinal direction to manufacture the absorbent article main body 4a. The absorbent article main body portion 4a formed by cutting the liquid-impermeable backsheet constituent material 36 and the long liquid-permeable frontsheet body 35 sandwiching the absorber 4 in the width direction is Since it can be arranged on the outer layer sheet constituent material 41 which is moved in the longitudinal direction without changing the direction in the width direction, the manufacturing process of the diaper body 1C as an absorbent article can be made efficient and the manufacturing thereof can be facilitated. Can be planned.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

A set of back side coupling members 44, 44, 44, 44 are provided on one side in the width direction of one surface of the outer layer sheet constituent material 41, and the other surface of the outer layer sheet constituent material 41 in the width direction. A step of providing a pair of abdominal side joining members 45, 45 on the other side portion, a step of arranging the absorbent article main body portion 4a on the long outer layer sheet constituent member 41 and joining them, and the outer layer sheet The constituent material 41 is cut in the width direction, and the outer layer sheet 5, the back side joint portion 19, and the abdomen side joint portion 20 are cut.
And a back waist portion 8, a crotch portion 9 having leg portions 11 on both sides, and an abdominal waist portion 10 are integrally formed in this order in the longitudinal direction, and at least the absorber 4 The step of forming the diaper body 1C as an absorbent article body in which the crotch portion 9 is disposed on the back crotch portion 8 of the outer layer sheet 5
The dorsal joints 19, 19, 19, 19 are provided on both sides of the dorsal side, and both dorsal joints 1 are provided on both sides of the abdominal waistline portion 10.
It is possible to easily manufacture the diaper body 1C provided with the ventral side connecting portions 20 and 20 that are detachably connected to the 9, 19, 19 and 19, respectively.

Next, another embodiment of the method for producing a disposable absorbent article of the present invention will be described with reference to FIGS.
This will be described with reference to FIGS. 26 and 27.

In the above embodiment, the step of cutting the outer layer sheet constituent material 41 from both side positions of the crotch around portion 9 of the absorbent article main body portions 4a, 4a to form the leg around portion 11 in the diaper body 1C is On the long outer layer sheet constituent material 41, the absorbent article main body portion 4a formed in the step shown in FIG. 13 with the longitudinal direction of the absorbent article body portion 4a facing the width direction of the outer layer sheet constituent material 41 is provided. A step of arranging and bonding the liquid-impermeable backsheet 3 of the portion where the absorbent body 4 is disposed in the crotch part 9 of the absorbent article body 4a onto the outer layer sheet constituent material 41 with an adhesive or the like. However, in this embodiment, a pair of back side coupling members 44, 44, 44, 44 are provided on one side in the width direction of one surface of the outer layer sheet constituent material 41, and the outer layer sheet constitution What is performed after the step of providing the pair of ventral side coupling members 45 on the other side portion in the width direction of the other surface of the material 41 A.

Therefore, in this manufacturing method, as shown in FIG.
As shown in FIG. 5, the long inner sheet body 40 is superposed on the long outer sheet body 37 with the dorsal waist elastic member 38 and the abdominal waist elastic member 39 sandwiched therebetween, and bonded. After the step of forming the long outer layer sheet constituent material 41, as shown in FIG. 26, one set of back side coupling members 44, 44, 44 is provided on one side in the width direction of one surface of the outer layer sheet constituent material 41. , 44 are provided on the outer layer sheet constituent material 41, and a pair of ventral side couplings that can be engaged with and disengaged from the back side coupling members 44, 44, 44, 44 on the other side portion in the width direction of the other surface of the outer layer sheet constituent material 41. After the members 45, 45 are provided on the outer layer sheet constituent material 41, the outer layer sheet constituent material 41 is cut into a substantially elliptical shape to form the leg parts 11 of the diaper body 1C.

Next, as shown in FIG. 27, on the long outer layer sheet constituting material 41, the step shown in FIG. 13 with the longitudinal direction of the absorbent article main body 4a oriented in the width direction of the outer layer sheet constituting material 41. The absorbent article main body portion 4a formed by the above is disposed, and the liquid impermeable backsheet 3 in the portion where the absorbent body 4 is disposed in the crotch portion 9 of the absorbent article main body portion 4a is the outer layer sheet. The step of bonding on the constituent material 41 is performed.

Next, by the process shown in FIG. 21, the outer layer sheet constituent material 41 is attached to the pair of back side connecting members 44, 44, 44,
A width direction is cut along a line connecting between 44 and the pair of ventral side connecting members 45, 45.

The steps shown in FIGS. 9 to 14 are the same as those in the above-mentioned embodiment.

In this embodiment, the long liquid-impervious backsheet constituent member 36, the first elastic cord-like body 32, the second elastic cord-like body 33, and the long liquid-permeable topsheet body are used. An absorbent article main body 4a can be manufactured by sequentially stacking 35 while moving in the longitudinal direction, and a long liquid-impervious back sheet constituent material 36 and a long liquid-permeable front sheet in which the absorber 4 is sandwiched. The absorbent article main body 4a formed by cutting the body 35 in the width direction should be disposed on the outer layer sheet constituent material 41 which is moved in the longitudinal direction without changing the orientation in the longitudinal direction and the width direction. Therefore, it is possible to improve the efficiency of the manufacturing process of the diaper body 1C as an absorbent article and to facilitate the manufacturing.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

Further, a pair of back side connecting members 44, 44, 44, 44 are provided on the outer layer sheet constituting material 41 at one side in the width direction of one surface of the outer layer sheet constituting material 41, and the outer layer sheet constituting material 41 is provided. A step of providing a pair of ventral side coupling members 45, 45 on the other side portion in the width direction of the other surface, and disposing the absorbent article main body portion 4a on the elongated outer layer sheet constituent member 41, The step of joining the liquid impermeable backsheet 3 of the absorbent article body 4a, and the outer layer sheet constituent material 41 is cut in the width direction, and the outer layer sheet 5 and the backside joining portion are cut.
19 and an abdominal joint portion 20, and a dorsal waist portion 8, a crotch portion 9 having leg portions 11 on both sides, and an abdominal waist portion 10 are integrally formed sequentially in the longitudinal direction. And a step of forming at least the absorbent body 4 in the crotch part 9 to form a diaper body 1C as an absorbent article body.
The dorsal joints 19, 19, 19,
A diaper body 1C provided with 19 and abdominal joints 20, 20 which are detachably coupled to the dorsal joints 19, 19, 19, 19 respectively on both sides of the abdominal waistline portion 10 Can be easily manufactured.

Next, another embodiment of the method for producing a disposable absorbent article according to the present invention will be described with reference to FIGS.
Description will be made with reference to FIGS. 28 and 29.

In the above embodiment, the outer layer sheet constituent material 41 is connected to the back side connecting members 44, 44, 44, 44 and the abdominal side connecting portion 45.
The step of cutting between the disposing portions of 45 into an approximately elliptical shape to form the leg part 11 in the diaper body 1C is performed by forming a pair of back side couplings on one side in the width direction of one surface of the outer layer sheet constituent material 41. Member 44,44,
44, 44 are provided in the outer layer sheet constituent material 41, and a pair of detachable members are detachably attached to the back side coupling members 44, 44, 44, 44 provided on the other side portion in the width direction of the other surface of the outer layer sheet constituent material 41. Ventral side coupling member 45,
Although a step is performed after the step of providing 45 to the outer layer sheet constituent material 41, in the present embodiment, the outer layer sheet constituent material 41 is provided in the set of back side coupling members 44, 44, 44, 44. This is performed after the step of cutting in the width direction on the line connecting the space and the pair of ventral side coupling members 45, 45.

Therefore, as shown in FIG. 19, a set of back side coupling members 44, 44, 44, 44 are provided on the outer layer sheet constituent material 41 at one side in the width direction of one surface of the outer layer sheet constituent material 41. , A set of ventral side connecting members which are detachable from the back side connecting members 44, 44, 44, 44 on the other side in the width direction of the other surface of the outer layer sheet constituent material 41.
After the step of providing 45, 45 on the outer layer sheet constituent material 41,
As shown in FIG. 7, the absorbent formed in the process shown in FIG. 13 on the long outer layer sheet constituting material 41 with the longitudinal direction of the absorbent article main body portion 4a directed toward the width direction of the outer layer sheet constituting material 41. Of the absorbent article body 4a, and the liquid impermeable backsheet 3 of the portion where the absorbent body 4 is disposed in the crotch part 9 of the absorbent article body 4a is bonded onto the outer layer sheet constituent material 41. The step of binding with an agent or the like is performed.

Next, as shown in FIG. 28, the outer layer sheet constituent material 41 is placed between the pair of back side coupling members 44, 44, 44, 44 and between the pair of ventral side coupling members 45, 45. After cutting in the width direction along the line connecting the two, the outer layer sheet 5 is cut from both side positions of the crotch part 9 of the absorbent article main body part 4a to form leg parts 11 of the diaper body 1C, as shown in FIG. Then, the outer layer sheet 5, the back side joint portion 19, and the abdomen side joint portion 20, and the crotch portion 9 having the back waist portion 8, leg portions 11 on both sides, and the abdominal waist portion 10 are provided. Is sequentially and integrally formed in the longitudinal direction, and at least the absorbent body 4 is disposed in the crotch portion 9 to form a diaper body 1C as an absorbent article body.

The steps shown in FIGS. 9 to 15 are the same as those in the above embodiment.

In this embodiment, the long liquid-impervious backsheet constituent member 36, the first elastic cord-like body 32, the second elastic cord-like body 33, and the long liquid-permeable topsheet body are used. The absorbent article main body 4a can be manufactured by superimposing 35 on each other, and the long liquid-impervious backsheet constituent material 36 and the long liquid-permeable topsheet body 35 with the absorber 4 sandwiched therebetween are arranged in the width direction. The absorbent article main body portion 4a formed by cutting can be disposed on the outer layer sheet constituent member 41 which is moved in the longitudinal direction without changing the orientations in the longitudinal direction and the width direction, and therefore the absorbent article. As a result, the manufacturing process of the diaper body 1C can be made efficient and the manufacturing thereof can be facilitated.

In addition, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left and right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

Further, by reciprocating the first elastic cord-shaped body 32 and the second elastic cord-shaped body 33 in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent member 36, The first elastic impermeable backing body 31 and the second elastic reliable body 33 are symmetrically opposed to each other and alternately bent in the width direction to extend the longitudinal direction of the elongated first liquid impermeable back sheet body 31. Since the first elastic body 12 and the second elastic body 13 are disposed at a right angle to the flow direction of the long liquid-impervious backsheet constituent material 36 in the longitudinal direction. The diaper body does not need to be arranged on the liquid-impervious backsheet constituent member 36 that is long in the direction.
1C can be easily manufactured.

Further, dorsal side joints 19, 19, 19, 19 are provided on both sides of the back waistline portion 8 of the outer layer sheet 5, and both dorsal side joints are provided on both sides of the abdominal waistline region 10. Part 19, 19, 1
Ventral joints 20 and 2 that are detachably connected to 9 and 19 respectively
The diaper body 1C provided with 0 can be easily manufactured.

[0198]

According to the first aspect of the present invention, the liquid-impervious backsheet of the disposable absorbent article extends outward from both longitudinal end portions and both lateral edge portions of the absorbent body. ,
It is possible to prevent the excreted liquid not absorbed by the absorbent body from leaking to the outer layer sheet side. Moreover, since the leg parts are formed on both sides of the crotch part of the outer layer sheet, the disposable absorbent article can be attached to the wearer's body in close contact with it.

Further, the liquid-impervious backsheet of the disposable absorbent article extends outward from both longitudinal end portions and both lateral edge portions of the absorbent body, and the first and second elastic bodies have both end portions. The sides are arranged along the widthwise both side edges of the liquid-impermeable back sheet from the back waistline portion and the abdominal waistline portion to the leg waist portion, and the middle portion is arranged in a direction crossing the crotch portion. At the crotch around the crotch part, the liquid impermeable back sheet and the outer layer sheet are arranged in the width direction, and in the leg part of the disposable absorbent article, the liquid impermeable back sheet and the outer layer sheet Since the overlapping portion of the portion extending outward from both widthwise edges of the absorbent body is formed in the non-fixed portion, the liquid-impervious backsheet has a widthwise dimension that is equal to that of the outer layer sheet. Can be made larger without being affected by When worn on the wearer's body, the leg-surrounding portion of this liquid-impermeable back sheet stands up in the body direction of the wearer to form a three-dimensional gather without being influenced by the stress of the leg portion of the outer layer sheet. Since the three-dimensional gathers are in close contact with the wearer's body even if a large inner pad is used, leakage of excreted liquid to the outside does not occur, and the outer layer sheet is not attached. The liquid-permeable outer layer sheet can be attached to the wearer's body with high adhesion and fit without being affected by the standing of the liquid-permeable outer layer sheet.

According to the second aspect of the present invention, since the absorbent article body has the pants shape, the disposable absorbent article can be attached and detached like pants while using the inner pad. It can be attached and detached easily.

According to the third aspect of the present invention, the back side joint portion and the abdomen side joint portion, which are respectively disposed on both side edges of the back waistline portion and the ventral waistline portion of the absorbent article body, can be freely engaged and disengaged. This absorbent article body can be attached to and removed from the body of the wearable person, and the inner pad can be attached to or removed from the body of the wearable person and the absorbent article body. Therefore, the inner pad can be easily replaced.

According to the fourth aspect of the present invention, the first elastic body and the second elastic body are continuously arranged along both widthwise edges of the liquid impermeable backsheet. Thus, the liquid-impermeable backsheet near the leg parts of the absorbent article is oriented in the standing direction to form a solid gather.

According to the invention described in claim 5, when the absorbent article body is attached to the body of the wearer, the third elastic body is arranged along the inner edge portions of both the liquid impermeable sheets. Has a contracting action, and the inner edge of the liquid-impermeable sheet is formed by the third elastic body to form the second solid gather in the inner portion of the solid gather formed on both sides of the liquid-impermeable back sheet. As a result, the excretory fluid leakage prevention effect is achieved, and the excretory fluid leakage prevention function of the absorbent article is improved.

According to the sixth aspect of the present invention, the waistline of the outer layer sheet is provided by the back waist elastic body and the abdominal waist elastic body provided between the outer sheet piece and the inner sheet piece. By obtaining stretchability in the width direction over substantially the entire area, the adhesiveness and fit between the absorbent article and the body of the wearer are improved, and the function of preventing excretion of the excreted liquid of the absorbent article is improved. .

According to the seventh aspect of the invention, when the absorbent article body is attached to the body of the wearer, the fourth elastic body disposed along at least the leg portions of both sides of the outer layer sheet contracts. Then, the outer layer sheet near the fourth elastic body is fastened around the legs of the wearer on both sides of the leg parts to form a third three-dimensional gather to exert the effect of preventing excretion of liquid excretion, and the absorbent article. When the body is worn as an outer, the excretory liquid leakage prevention effect of the absorbent article body is improved and the adhesion between the absorbent article body and the body of the wearer is improved.

According to the eighth aspect of the present invention, the long liquid-impervious backsheet constituent material, the first elastic cord-shaped body, the second elastic cord-shaped body, and the long liquid-permeable topsheet. An absorbent article main body can be manufactured by sequentially stacking the body while moving the body in the longitudinal direction, and a long liquid-impermeable backsheet constituent material and a long liquid-permeable topsheet body sandwiching the absorbent body. Since the absorbent article main body formed by cutting in the width direction can be arranged on the outer layer sheet constituent material which is moved in the longitudinal direction without changing the orientations in the longitudinal direction and the width direction, the disposable absorbent article can be disposed. It is possible to improve the efficiency of the manufacturing process of the elastic article and facilitate the manufacturing thereof.

Further, the first elastic cord and the second elastic cord are reciprocated in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent material, whereby the first elastic cord-shaped body is moved. The string-shaped body and the second elastic string-shaped body are symmetrically opposed to each other and alternately bent in the left-right direction, and are arranged in the longitudinal direction of the elongated first liquid-impermeable backsheet body to be joined. Therefore, the first elastic body and the second elastic body are provided with a long liquid impermeability from a direction perpendicular to the longitudinal flow direction of the long impermeable back sheet constituent material. The disposable absorbent article can be easily manufactured without the need for disposing it on the back sheet constituent material.

Further, the outer layer sheet constituent material is folded in two from the widthwise central portion along the longitudinal direction, the absorbent article main body portions are joined in the width direction, and then the outer layer sheet constituent material is cut in the width direction. A disposable absorbent article formed in a pants shape can be easily manufactured.

[0209] According to the invention described in claim 9, it is possible to easily manufacture a disposable absorbent article formed in a pants shape.

According to the tenth aspect of the invention, the long liquid-impervious impermeable back sheet constituent material, the first elastic cord-shaped body, the second elastic cord-shaped body, and the long liquid-permeable surface sheet. An absorbent article main body can be manufactured by sequentially stacking the body while moving the body in the longitudinal direction, and a long liquid-impermeable backsheet constituent material and a long liquid-permeable topsheet body sandwiching the absorbent body. Since the absorbent article main body formed by cutting in the width direction can be arranged on the outer layer sheet constituent material which is moved in the longitudinal direction without changing the orientations in the longitudinal direction and the width direction, the disposable absorbent article can be disposed. It is possible to improve the efficiency of the manufacturing process of the elastic article and facilitate the manufacturing thereof.

[0211] Further, the first elastic cord and the second elastic cord are reciprocated in the left-right direction with respect to the traveling direction of the long liquid-impervious backsheet constituent material, whereby the first elastic cord is reciprocated. The string-shaped body and the second elastic string-shaped body are symmetrically opposed to each other and alternately bent in the left-right direction, and are arranged in the longitudinal direction of the elongated first liquid-impermeable backsheet body to be joined. Therefore, the first elastic body and the second elastic body are provided with a long liquid impermeability from a direction perpendicular to the longitudinal flow direction of the long impermeable back sheet constituent material. The disposable absorbent article can be easily manufactured without the need for disposing it on the back sheet constituent material.

Further, the abdomen side having the back side joints on both sides of the back waistline portion of the outer layer sheet and the both sides of the abdominal waistline portion releasably coupled to the two dorsal side joints, respectively. A disposable absorbent article having a joint can be easily manufactured.

According to the eleventh aspect of the invention, the disposable absorbent article in the unfolded state can be easily manufactured.

[Brief description of drawings]

FIG. 1 is a plan view in which a disposable absorbent article according to an embodiment of the present invention is partially unfolded in a developed state.

FIG. 2 is the same as the disposable absorbent article AA in FIG.
It is a vertical front view of a line part.

FIG. 3 is an explanatory plan view of a disposable absorbent article according to another embodiment of the present invention in a developed state.

FIG. 4 is an explanatory plan view of a disposable absorbent article according to another embodiment of the present invention in a developed state.

FIG. 5 is an explanatory plan view of a disposable absorbent article according to another embodiment of the present invention in a developed state.

FIG. 6 is a perspective view of the pants-shaped disposable absorbent article of the same.

FIG. 7 is a vertical cross-sectional front view of a disposable absorbent article according to another embodiment of the present invention.

FIG. 8 is a vertical cross-sectional front view of a disposable absorbent article according to another embodiment of the present invention.

FIG. 9 is a view showing a disposable absorbent article according to an embodiment of the present invention, in which a first elastic cord-shaped body and a second elastic cord-shaped body are arranged and bonded on a long first liquid-impermeable back sheet body. It is an explanatory plan view of a step of performing.

FIG. 10 is the same as the above, with the first elastic liquid-permeable back sheet body sandwiching the first elastic cord-shaped body and the second elastic cord-shaped body,
FIG. 6 is an explanatory plan view of a step of disposing and joining the liquid-impermeable backsheet body of to form a long liquid-impermeable backsheet constituent member.

FIG. 11 is an explanatory plan view of a step of disposing and bonding an absorber on the second elongated liquid-impermeable back sheet body of the same as above.

FIG. 12 is an explanatory plan view of a step of disposing and joining a long liquid-permeable front sheet body with an absorbent body sandwiched on the same long second liquid-impermeable back sheet body.

FIG. 13: Same as the above First and second long liquid-impervious backsheets sandwiching a first elastic string and a second elastic string, and a long strip sandwiching an absorber. Of the liquid-permeable topsheet body of, and a long plane of the liquid-impervious backsheet component and the long liquid-permeable topsheet body are cut in the width direction to form an absorbent article main body. It is a figure.

FIG. 14 is an explanatory plan view of a step of disposing and fixing the long back waistline elastic members and the abdominal waistline elastic members on the long outer sheet body.

FIG. 15: A long outer layer in which the long inner sheet bodies are superposed and arranged with the back waist elastic member and the abdominal waist elastic member sandwiched therebetween on the long outer sheet body. It is an explanatory plan view of a process of forming a sheet component.

FIG. 16 is an explanatory plan view of a step of disposing and bonding the absorbent article main body on the above-mentioned long outer layer sheet constituent material.

FIG. 17 is an explanatory plan view of the step of folding the outer layer sheet constituent material in the same way in two.

FIG. 18 is an explanatory plan view of a step of cutting the outer layer sheet constituent material to form a diaper body.

FIG. 19 is an explanatory plan view of the step of providing the joining member on the long outer layer sheet constituent material of the same.

FIG. 20 is an explanatory plan view of a step of disposing and bonding the absorbent article body on the long outer layer sheet constituent material of the same.

FIG. 21 is an explanatory plan view of a step of forming the diaper body by cutting the outer layer sheet constituent material in the same width direction.

FIG. 22 is an explanatory plan view of the step of disposing and bonding the absorbent article main body on the long outer layer sheet constituent material of the same.

FIG. 23 is an explanatory plan view of a step of folding the outer layer sheet constituent material in the same way in two.

FIG. 24 is an explanatory plan view of the step of joining the outer-layer sheet constituent materials that are folded in half in the same manner as above.

FIG. 25 is an explanatory plan view of a step of cutting the outer layer sheet constituent material to form a diaper body.

FIG. 26 is an explanatory plan view of a step of providing a joining member on the long outer layer sheet constituent material of the same.

FIG. 27 is an explanatory plan view of the step of joining the absorbent article main body onto the elongated outer layer sheet constituent material of the same.

FIG. 28 is an explanatory plan view of the step of bonding the absorbent article main body onto the outer layer sheet constituent material on the same long outer layer sheet constituent material.

FIG. 29 is an explanatory plan view of a step of cutting the outer layer sheet constituent material in the same direction in the width direction to form a diaper body.

[Explanation of symbols]

1 Diaper body as absorbent article body 1A Diaper body as an absorbent article body 1B Diaper body as absorbent article body 1C Diaper body as absorbent article body 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 absorber 4a Absorbent article body 5 outer layer sheet 8 Dorsal waist area 9 inseam 10 Ventral waist area 11, 11a Leg area 12 First elastic body 13 Second elastic body 14 Outer sheet piece 15 Inner sheet piece 16 Dorsal waist elastic 17 Ventral waist elastic 18 Fourth elastic body 19 Dorsal connection 20 ventral joint 21, 21a Liquid impermeable sheet 22 Third elastic body 24 One side edge 25 Other side edge 26 Edge on one side 27 Edge on the other side 28 Join 29 waist side opening 30 Leg side opening 31 Long first impermeable back sheet body 32 First elastic cord 33 Second elastic cord 34 Long second impermeable back sheet body 35 Long liquid-permeable surface sheet 36 Long liquid-impermeable back sheet component 37 Long outer sheet body 38 Back waist elastic member 39 Ventral waist elastic 40 Long inner sheet body 41 Outer layer sheet material 42 Join 44 Dorsal connection member 45 Ventral coupling member

Claims (11)

[Claims] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent article main body formed of an absorber disposed between the liquid-permeable top sheet and the liquid-impermeable back sheet. An outer layer sheet superposed on and bonded to the liquid-impermeable backsheet of the absorbent article main body, and a back waist portion, a crotch portion having leg portions on both sides, and an abdominal waist The absorbent article body is provided with the absorbent body sequentially and integrally formed in the longitudinal direction, and the absorbent body is provided at least in the crotch area. The back waistline and belly of the outer layer sheet of the absorbent article body are provided. In the side waistline portion, a back waistline elastic body and an abdominal waistline elastic body that expands and contracts in the width direction of the outer layer sheet are disposed, and at least the liquid-impermeable backsheet is at both longitudinal ends of the absorber. Of the absorbent article body extending outwardly from both side portions and both side edges in the width direction, In the peripheral portion, at least the overlapping portion of the liquid-impermeable backing sheet and the outer layer sheet that extends outward from the widthwise both side edge portions of the absorber is formed in a non-fixed portion, In the backsheet, a first elastic body and a second elastic body are provided on the leg circumference portions on both sides from the back waistline portion and the abdominal waistline portion of the liquid impermeable backsheet, respectively. The first elastic body is arranged at both ends from the back waistline portion to the leg waist portion along both widthwise edges of the liquid-impermeable backsheet, and an intermediate portion in a direction crossing the crotch portion. The second elastic body is bent to the width direction between the liquid-impermeable backsheets at the crotch region, and the both ends of the second elastic body are liquid-impermeable from the abdominal waist region to the leg regions. It is arranged along both side edges in the width direction of the back sheet, and the middle part is crossed over the crotch part. Disposable absorbent article, wherein is disposed in the width direction between the liquid-impermeable back sheet in the crotch around portion bent in direction, that. 2. An outer layer sheet, one side edge of the back waistline portion and one side edge portion of the abdominal waistline portion, and the other side edge portion of the backside waistline portion and the other side of the abdominal waistline portion. The disposable absorbent article according to claim 1, wherein the absorbent article body is formed into a pants-like shape having waist-side openings and a pair of leg-side openings by connecting side edges to each other. 3. A back joint portion is provided on each side of the back waistline portion of the outer layer sheet, and both backside joint portions are detachably connected to both sides of the abdominal waistline portion. An abdominal joint part is provided, and when used, one dorsal joint part and one abdominal joint part are joined together, and the other dorsal joint part and the other abdominal joint part are joined respectively, The disposable absorbent article according to claim 1, wherein the absorbent article body is formed in a pants shape having a waistline side opening and a pair of leg side openings. 4. The first elastic body and the second elastic body intersect at the leg circumference portion of the absorbent article body, and the first elastic body is more ventral than the substantially central portion in the longitudinal direction of the crotch circumference portion. The second elastic body is disposed across the crotch region on the waist region side, and the second elastic body is disposed across the crotch region on the back waist region side rather than the substantially central portion in the longitudinal direction of the crotch region region. The disposable absorbent article according to any one of claims 1 to 3, wherein the disposable absorbent article is provided. 5. Two absorbent liquid-impermeable sheets are symmetrically overlapped in the vicinity of both side edges of the absorbent body along the longitudinal direction of the absorbent body with a gap between inner edges facing each other. The inner edge side of the liquid-permeable sheet and the liquid-permeable top sheet are not fixed to each other, and the outer edge of the liquid-impermeable sheet is fixed to the surface of the absorbent article body, respectively. Third along the inner edge of the liquid-impervious sheet
5. The elastic body according to claim 1 is provided.
The disposable absorbent article according to any one of 1. 6. The outer layer sheet is composed of an outer sheet piece facing the wearer's clothes side and an inner sheet piece facing the liquid-impermeable back sheet side and being the skin side. The disposable absorbent article according to any one of claims 1 to 5, wherein a back waist elastic body and an abdominal waist elastic body are provided between the inner sheet piece and the inner sheet piece. 7. The disposable absorbent article according to any one of claims 1 to 6, wherein a fourth elastic body is arranged along at least both leg portions of the outer layer sheet. 8. A width of a long first liquid-impervious back sheet body on which a long first elastic cord-like body and a second elastic cord-like body are symmetrically opposed to each other. On the long first liquid-impervious backsheet body, wherein the long first liquid-impermeable backsheet body is arranged and coupled in the longitudinal direction by alternately bending in a direction. A long liquid-impervious backsheet constituent material formed by stacking and joining a long second liquid-impermeable backsheet body with the first elastic string-shaped body and the second elastic string-shaped body sandwiched therebetween. And a step of forming the first second liquid impermeable back sheet body on the long second liquid impermeable back sheet body.
Of the elastic string-shaped body and the second elastic string-shaped body are located close to each other, and the absorbent body is arranged in the width direction of the elongated second liquid-impermeable backsheet body. And a step of arranging and combining the two, and a step of arranging and connecting a long liquid-permeable front sheet body with the absorber interposed therebetween on the second long liquid-impermeable back sheet body. And a long transparent liquid-permeable back sheet body having the first elastic string and the second elastic string body sandwiched therebetween and an absorbent body having the absorbent body sandwiched therebetween. The liquid-permeable topsheet body is provided with a long liquid-impervious backsheet constituent material at a portion where the first elastic cord-shaped body and the second elastic cord-shaped body between the adjacent absorbent bodies are most distant from each other. And in the width direction of the long liquid-permeable surface sheet body, the liquid-permeable surface sheet is cut from both sides along both ends of the first elastic string body and the second elastic string body. And an absorbent body between the liquid-impervious backsheet and the back waistline, the crotch part having leg parts on both sides, and the abdominal waistline are sequentially and integrally formed in the longitudinal direction. And at least the absorbent body is disposed in the crotch region, and the first elastic body has both end portions from the back waist region to the leg regions in the widthwise side edge portion of the liquid impermeable backsheet. And the middle portion is bent in a direction crossing the crotch around portion and is arranged in the width direction on the liquid impermeable back sheet at the crotch around portion, and the second elastic body is provided at both end portions. Is disposed along the side edge portion in the width direction of the liquid-impermeable back sheet from the abdominal waist portion to the leg portion, and is bent in a direction traversing the crotch portion and at the crotch portion. A step of forming an absorbent article main body portion which is arranged in the width direction on a liquid-impermeable back sheet and is bonded , A plurality of long elastic members for the back waistline and elastic members for the abdominal waistline are arranged in parallel on both sides in the width direction on the long outer sheet body in the longitudinal direction of the long outer sheet body. Steps of arranging and fixing each, and arranging the long inner sheet body on the long outer sheet body with the back waist elastic member and the abdominal waist elastic member sandwiched therebetween. A step of forming a joined long outer layer sheet constituting material, and the absorbent article with the longitudinal direction of the absorbent article main body oriented toward the width direction of the outer layer sheet constituting material on the long outer layer sheet constituting material. Of the leg portion of the absorbent article main body portion provided with the main body portion, at least a portion extending outward from both widthwise side edge portions of the absorbent body of the liquid-impermeable backsheet and the outer layer sheet constituent material In the crotch around portion of the absorbent article main body portion, excluding the overlapping portion, A step of bonding the liquid-impermeable backsheet of the portion where the absorbent body is arranged onto the outer layer sheet constituent material, and folding the outer layer sheet constituent material into two along the longitudinal direction from the widthwise central portion and adjoining A step of connecting the absorbent article main body portions in the width direction to form a joint portion, and forming a waist side opening between the joint portions; and cutting the joint portion in the width direction of the outer layer sheet constituent material. ,
An outer layer sheet, and a back waistline portion, a crotch region having leg portions on both sides, and an abdominal region around the waist are integrally formed in the longitudinal direction, and at least the absorber is at the crotch region. And a step of forming an absorbent article body disposed in the absorbent article body. 9. The absorbent article main body is arranged on a long outer layer sheet constituent with the longitudinal direction of the absorbent article main body oriented in the width direction of the outer layer sheet constituent, and the absorbent article is provided. The absorbent article except at least a portion of the leg portion of the main body portion that extends outward from both lateral edges of the absorbent body of the liquid-impermeable backsheet and the outer layer sheet constituent material. A step of bonding the liquid-impermeable backsheet of the portion in which the absorber is disposed in the crotch portion of the main body portion onto the outer layer sheet constituent material, and the outer layer sheet constituent material from the widthwise central portion along the longitudinal direction Folding in two, connecting the adjacent absorbent article body parts in the width direction to form a joint part, and forming a waist-side opening between the joint parts; and forming the joint part in the outer layer sheet structure. Cut in the width direction of the material,
An outer layer sheet, a back waistline part, a crotch part having leg parts on both sides, and an abdominal waistline part are integrally formed sequentially in the longitudinal direction, and at least the absorbent body is formed in the crotch part. After either of the step of forming the disposed absorbent article body, a step of cutting both sides of the crotch around portion of the outer layer sheet constituent material or the outer layer sheet to form a pair of leg around side openings The method for manufacturing a disposable absorbent article according to claim 8, further comprising: 10. The width of the elongated first elastic string-shaped body and the elongated elastic string-shaped body which are symmetrically opposed to each other on the elongated first liquid-impermeable back sheet body. On the long first liquid-impervious backsheet body, wherein the long first liquid-impermeable backsheet body is arranged and coupled in the longitudinal direction by alternately bending in a direction. A long liquid-impervious backsheet constituent material formed by stacking and joining a long second liquid-impermeable backsheet body with the first elastic string-shaped body and the second elastic string-shaped body sandwiched therebetween. And a step of forming the first second liquid impermeable back sheet body on the long second liquid impermeable back sheet body.
Of the elastic string-shaped body and the second elastic string-shaped body are located close to each other, and the absorbent body is arranged in the width direction of the elongated second liquid-impermeable backsheet body. And a step of arranging and combining the two, and a step of arranging and connecting a long liquid-permeable front sheet body with the absorber interposed therebetween on the second long liquid-impermeable back sheet body. And a long transparent liquid-permeable back sheet body having the first elastic string and the second elastic string body sandwiched therebetween and an absorbent body having the absorbent body sandwiched therebetween. The liquid-permeable topsheet body is a long liquid-impervious backsheet constituent material at a portion where the first elastic cord-shaped body and the second elastic cord-shaped body between the adjacent absorbent bodies are most distant from each other. And in the width direction of the long liquid-permeable surface sheet body, the liquid-permeable surface sheet is cut from both sides along both ends of the first elastic string body and the second elastic string body. And disposed an absorbent body between the liquid-impermeable back sheet, the back side waist portion,
The crotch part having leg parts on both sides and the abdominal waist part are sequentially and integrally formed in the longitudinal direction, and at least the absorber is arranged in the crotch part, and the first elastic body is Both ends are arranged along the widthwise side edges of the liquid-impermeable back sheet from the dorsal waist portion to the leg portions, and the middle portion is bent in a direction crossing the crotch portion and the crotch portion is formed. In the width direction of the liquid-impermeable backsheet, the second elastic body has both end portions extending from the abdominal waist portion to the leg portions in the widthwise side edge portion of the liquid-impermeable backsheet. Is disposed along and bonded to the liquid-impermeable backsheet at the crotch-rotating part so that the absorbent article main body is bonded to the liquid-impermeable backsheet in the width direction. Process and this long outer sheet on both sides in the width direction on the long outer sheet A plurality of elastic members for the back waistline and elastic members for the abdominal waistline, which are elongated in the longitudinal direction of the body, are respectively arranged in parallel and fixed, and the spine is provided on the elongated outer sheet body. A step of forming a long outer layer sheet component by stacking and connecting long inner sheet members with the elastic member for side waistline and the elastic member for belly waistline sandwiched therebetween, and this outer layer sheet component material On one side in the width direction of one surface, a set of back side coupling members juxtaposed in parallel in the longitudinal direction of the outer layer sheet constituent material is provided with an interval substantially the same as the width direction dimension of the absorbent article main body section. A pair of bellies provided on the constituent material and detachably attached to the back-side coupling members provided in parallel on the other side of the other surface of the outer-layer sheet constituent material in the width direction on the other side in the longitudinal direction of the outer-layer sheet constituent material. The side coupling members are arranged at intervals substantially the same as the widthwise dimension of the absorbent article main body. And a step of providing the outer layer sheet constituent material with the absorbent article body portion on the elongated outer layer sheet constituent material with the longitudinal direction of the absorbent article body portion oriented in the width direction of the outer layer sheet constituent material. However, at least the portion of the leg portion of the absorbent article main body portion, which overlaps at least a portion of the liquid-impermeable back sheet that extends outward from both side edges of the absorbent body in the width direction, and the outer layer sheet constituent material, is excluded. And connecting the liquid-impermeable backsheet of the portion where the absorber is disposed in the crotch part of the absorbent article main body onto the outer layer sheet constituent material; Cutting in the width direction on the line connecting between the back side connecting portions of the set and between the at least one set of ventral side connecting portions, and having an outer layer sheet, a back side connecting portion and an abdominal side connecting portion, and a back side waist Waist, inseam with legs on both sides, and belly And a step of forming an absorbent article body in which waist parts are sequentially and integrally formed in the longitudinal direction and at least the absorbent body is disposed in the crotch part, and a method for producing a disposable absorbent article, comprising: . 11. A set of dorsal side coupling members arranged in parallel on one side in the width direction of one surface of the outer layer sheet constituent material in the vicinity of the longitudinal direction of the outer layer sheet constituent material and having a width of the absorbent article main body section. The dorsal side connecting member provided on the outer layer sheet constituent material at substantially the same distance as the direction dimension and provided in parallel on the other side portion in the width direction of the other surface of the outer layer sheet constituent material in proximity to the longitudinal direction of the outer layer sheet constituent material. A step of disposing a pair of ventral side coupling members that can be engaged and disengaged on the outer layer sheet constituent material at intervals substantially the same as the widthwise dimension of the absorbent article main body; and The absorbent article body is arranged with the longitudinal direction of the absorbent article body oriented in the width direction of the outer layer sheet constituent material, and at least the liquid impermeable back sheet is absorbed in the leg parts of the absorbent article body. Of the part that extends outward from both widthwise edges of the body A step of bonding the liquid-impermeable backsheet of the portion in which the absorber is disposed in the crotch part of the absorbent article main body onto the outer layer sheet constituent material, excluding the overlapping portion with the layer sheet constituent material And, cutting the outer layer sheet constituent material in the width direction on a line connecting between the at least one set of back side joints and between the at least one set of ventral side joints, the outer layer sheet, the back side joints and the ventral side. A waist portion around the back, a crotch portion having leg portions on both sides, and a waist portion around the abdomen are sequentially and integrally formed in the longitudinal direction, and at least the absorber is crotch around. After the step of forming any of the absorbent article body disposed in the section, a step of cutting both sides of the crotch part of the outer layer sheet constituent material or the outer layer sheet to form a leg part is provided. 11. The disposable absorbent article according to claim 10, characterized in that Method of manufacturing an article.