JP2006055382A - Production method for absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production method for an absorbent article having side panels with which excellent high-speed productivity is obtained by efficiently fitting a large number of side panel members to both of the edge parts of an absorbing article body. <P>SOLUTION: This method is for producing the absorbent article 10 having the side panels 15. The side panel members 20 are consecutively formed of a belt-like original fabric 18 and are sent, and the side panel members 20 are alternately fitted to a pair of belt-like side sheet members 21 consecutively carried along a center line respectively at intervals. While keeping the state of consecutively carrying the pair of side sheets 21, the method is adjusted so that the side sheet members 21 may be moved so as to arrange the side panel members 20 at outer edge parts and so that the side panel members 20 are arranged at the same position in a carrying direction. Then, after connecting the pair of side sheet members 21 along both of the side edge parts of a top sheet 11 and connecting an absorber 13 and a back sheet 12, it is cut off and divided to obtain the absorbent article 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method of manufacturing an absorbent article, and in particular, both sides of a substantially vertically long absorbent body including a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retaining absorbent body. The present invention relates to a method for manufacturing an absorbent article having at least a pair of side panels provided to protrude from an edge.

  For example, absorbent articles such as disposable diapers, pants-type diapers, napkins, etc. are substantially vertically long absorbent bodies comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retaining absorbent body. Various measures are taken to make it possible to effectively absorb the discharged matter from the body into the absorbent body and to hold the absorbed discharged matter firmly without leaking. Yes.

  Further, for example, in a deployable disposable diaper, a pants-type diaper, etc., in order to make it easy to attach to the body, an adhesive tape or the like is provided so as to protrude outward from both side edges of the absorbent main body. Side flaps may be provided, and for example, on napkins, wings for improving the function of fixing to shorts and water-repellent sheet parts for preventing leakage of discharged materials are provided on both sides of the absorbent main body. In some cases, it is provided so as to protrude outward from the edge.

  In order to provide these projecting portions, for example, the side edge in the longitudinal direction of the absorbent article formed so that the planar shape is rectangular is trimmed into a concave shape, and the remaining portion that has not been cut is used as the projecting portion. In some cases, a method of projecting in the direction is used, but in such a method, a lot of material is wasted due to the trimmed portion.

On the other hand, side panel materials made of a material different from the front sheet and back sheet are attached by protruding outward from both side edges of the absorbent main body, so that the side flaps and wings can be cut without trimming. The technique which provided the part etc. is disclosed (for example, refer patent document 1, 2). According to the method for manufacturing an absorbent article described in Patent Document 1, inward extensions that are alternately nested by cutting a central portion of a web material (side panel material) fed in a band shape along a meandering curve. The elements are continuously formed, and these inwardly extending elements are cut and divided along a cutting line perpendicular to the delivery direction to form a single side panel member, and each side panel member is attached to both side edges of the absorbent main body. These are attached to each predetermined position. In addition, according to the method for manufacturing a disposable diaper described in Patent Document 2, an absorbent mat (absorber) is intermittently disposed between a top sheet (front sheet) and a back sheet (back sheet) to produce a strip-shaped diaper body. A step of manufacturing a substantially trapezoidal side flap sheet from the belt-like third sheet, and a step of sticking the side flap sheets to both peripheral edges of the belt-like paper diaper body about the transverse cutting line of the belt-like paper diaper body. And a step of cutting the belt-shaped paper diaper main body into a predetermined dimension together with the side flap sheet.
Japanese National Patent Publication No. 11-503032 JP-A-4-261655

  However, according to the method of providing the above-described conventional overhanging portion (side panel), side flap materials such as side panel members and side flap sheets sequentially obtained by cutting and dividing are used for predetermined side edges of the absorbent main body. Since it is necessary to attach to each position individually, a lot of control is required in the process of attaching these many side panel materials while accurately positioning each of them, and the equipment for that is complicated and large. In addition, with the method of attaching a large number of side panel materials individually, it has been difficult to achieve accurate and stable high-speed productivity.

  The present invention makes it possible to attach a large number of side panel materials, which are successively formed, to a predetermined position on both side edges of the absorbent main body in a stable state with excellent high-speed productivity. An object of the present invention is to provide a method for producing an absorbent article having a side panel that can be obtained.

  The present invention provides at least a pair of protrusions that extend from both side edges of a substantially vertically long absorbent main body that includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-retaining absorbent body. A method of manufacturing an absorbent article having a side panel of the above, wherein a raw material fed in a strip shape is sequentially cut by a cutting line intersecting with a feeding center line, and a side panel material is continuously formed. A step of sequentially feeding the side panel material along the feed center line, and a continuous conveyance along the feed center line, which is arranged on both sides of the feed center line at an interval smaller than the width of the original fabric. A pair of side sheet materials is formed by joining one side edge of the side panel material overlapping the side sheet material to the inner edge of the side sheet material, respectively , Send The step of alternately attaching the side panel materials alternately at intervals in the direction and the pair of side sheet materials to which the side panel materials are alternately attached are maintained in a state of being continuously conveyed. The side panel material attached to each side sheet material is moved so that the inner edge portion where the side panel materials are joined is disposed at the outer edge portion, and the distance between the pair of side sheet materials is adjusted. Are arranged on the same position in the conveying direction, and a pair of side sheet materials that are adjusted in the distance and the position of the side panel material while being continuously conveyed, on both sides of the sheet member constituting the absorbent article A step of joining along each edge, and joining the absorbent body and the other sheet member to the sheet member to which the side sheet material is joined; By providing a method of manufacturing an absorbent article comprising a step of forming an absorbent article having a panel, in which to achieve the above objects.

  Here, the feed center line of the original fabric and the side panel material in the above description may be a center line passing through a plane including the longitudinal center line of the original fabric fed out in the band shape, and in the unwinding direction of the original fabric. In addition to the sending center line to go, for example, a sending center line that is bent through a guide roll and bent upward or downward from the unwinding direction, or the direction opposite to the unwinding direction, etc. Also good.

  According to the method for manufacturing an absorbent article of the present invention, a large number of side panel materials that are successively formed are attached to predetermined positions on both side edges of the absorbent main body in a stable and accurate state. In this way, excellent high-speed productivity of the absorbent article having the side panel can be obtained.

  The manufacturing method of the absorbent article which concerns on preferable 1st Embodiment of this invention is efficient in a high-speed and stable state, for example, as an absorptive article provided with a side panel, the deployment-type disposable diaper 10 as shown in FIG. It was adopted for the purpose of enabling manufacture. Here, the disposable diaper 10 has a vertically-long rectangular absorption structure including a liquid-permeable top sheet (front sheet) 11, a liquid-impermeable back sheet (back sheet) 12, and a liquid-retaining absorbent body 13. It is formed by projecting and providing a pair of side panels 15 on both side edges of the sex main body 14. The disposable diaper 10 is appropriately attached with elastic members 16a and 16b forming a three-dimensional gather or leg gather, a waistline elastic member, and the like. Further, a hook material 17 is attached to the side panel 15, and the disposable diaper 10 is moved along the lower abdomen of the body by locking the hook material 17 to a locking portion provided at, for example, the waistline. It can be easily assembled to the shape.

  And the manufacturing method of the absorbent article of this 1st Embodiment is a manufacturing method which can form many disposable diapers 10 which have the above side panels 15 at high speed, Comprising: FIG. 2, FIG. ) To (d) and as shown in FIGS. 4 (a) and 4 (b), the raw fabric 18 fed in a strip shape is cut along a cutting line 19 (see FIG. 3 (c)) intersecting the delivery center line c. The side panel material 20 is continuously formed by cutting sequentially, the step of feeding the formed side panel material 20 and sequentially feeding it along the center line c, and the width of the raw fabric 18 on both sides of the feed center line c. One side edge portion of the side panel material 20 that overlaps the side sheet material 21 with respect to the pair of band-shaped side sheet materials 21 that are arranged at a small interval and are continuously conveyed along the delivery center line c. 20a on the inner edge of the side sheet material 21 By combining, a pair of side sheet members 21 are alternately attached to the pair of side sheet members 21 at intervals in the delivery direction, and a pair of side panel members 20 are alternately attached. While maintaining the state in which the side sheet material 21 is continuously conveyed, the side sheet material 21 is moved so that the inner edge portion where the side panel material 20 is joined is disposed at the outer edge portion, and the distance between the pair of side sheet materials 20 is adjusted. And a step of adjusting the side panel members 20 attached to the side sheet members 21 to be aligned at the same position in the transport direction, and a pair of the gaps and the positions of the side panel members 20 adjusted while being continuously transported. As a sheet member constituting the disposable diaper 10, for example, a step of joining the side sheet material 21 along both side edges of the top sheet 11, After the wood 21 is joined to the absorbent body 13 and backsheet 12, such as the topsheet 11 joined, constituted by forming a disposable diaper (absorbent article) 10 having side panels 15 and cutting and dividing.

  According to the first embodiment, in the step of sequentially forming the side panel material 20 by sequentially cutting the raw fabric 18 fed out in a strip shape, and sequentially feeding the formed side panel material 20, FIG. As shown, an unwinding roll (not shown) in which the original fabric 18 of the side panel material 20 is wound so as to be unwound, and a cutting roll 22 disposed downstream of the unwinding roll in the feeding direction, A suction roll 23 is used that sucks and holds the side panel material 20 sequentially cut by the cutting roll 22 and sends it out along the center line c. In other words, the unwinding roll is arranged, for example, above the cutting roll 22, unwinds the original fabric 18 of the side panel material 20 at a predetermined feed speed, and horizontally converts the original fabric 18 by the direction changing roll 24a. The direction is changed to a direction, and the sheet is fed between the cutting roll 22 and the suction roll 23. The cutting roll 22 has a plurality of cutter blades 25 arranged on the peripheral surface alternately and obliquely with respect to the feed center line c so that the side panel material 20 can be cut into an isosceles trapezoidal shape from the raw fabric 18, for example. The isosceles trapezoidal side panel material 20 can be cut out sequentially and continuously by rotating while sandwiching the original fabric 18 between the suction roll 23.

  The suction roll 23 is, for example, a hollow roll having a large number of fine air holes formed on the outer peripheral surface thereof, and has a receiving blade function (not shown) for the cutter blade 25 of the cutting roll 22. Further, the suction roll 23 sucks the internal air and holds it in a negative pressure state, thereby sending the side panel material 20 cut and divided by the cutting roll 22 while sucking and holding the outer peripheral surface to the center line c. Send along. Furthermore, in the next step, the suction roll 23 can press the outer peripheral surface against the belt-like side sheet material 21 that is continuously conveyed, and can smoothly join the side panel material 20 to the side sheet material 21. ing.

  The cutting of the raw fabric 18 by the cutting roll 22 is controlled so that a pair of side panel materials 20 provided on both side edges of the absorbent main body 14 can be manufactured with respect to the side sheet material 21 for one disposable diaper. The rotation speed of the suction roll 23 is controlled so as to be substantially the same as the conveyance speed of the side sheet material 21. Thus, after the side panel material 20 is continuously cut and formed from the raw fabric 18 fed out in a strip shape, the cut side panel material 20 is predetermined along the feed center line c around the suction roll 23. In this state (see FIG. 3A), it can be sequentially and smoothly sent out to the next process.

  Furthermore, according to the first embodiment, the hook material attaching device 26 is provided between the unwinding roll and the cutting roll 22 to attach the hook material 17 in advance before cutting the raw fabric 18. Is provided. The hook material attaching device 26 includes a hook material feeding roll 26a, a direction changing roll 26b, a guide conveyor 26c, a cutting adhesive roll 26d, and the like, and has a desired size with respect to the original fabric 18 fed downward from the unwinding roll. The hook members 17 cut into the same shape are attached in sequence in a zigzag manner on the fed raw fabric 18 in correspondence with the desired hook mounting positions in the respective isosceles trapezoidal side panel materials 20 formed from the raw fabric 18. It will be joined.

  And according to this 1st Embodiment, a pair of side sheet material 21 is joined by joining the side panel material 20 to the inner side edge part of the strip | belt-shaped side sheet material 21 conveyed continuously along the sending centerline c. In the step of alternately attaching the side panel members 20 alternately to each other, for example, as shown in FIG. 2, the pair of side sheet members 21 are continuously conveyed in a state of being arranged in parallel at a predetermined interval. A continuous conveyance device (not shown), the above-described suction roll 23, and a pair of first hot melt supply devices 27 are used. In other words, the continuous conveyance device has a pair of side sheet materials 21 centered on the delivery center line c at least in the considerable length region on the upstream side and the substantial length region on the downstream side across the suction roll 23. They can be arranged in parallel and continuously conveyed on both sides with an interval smaller than the width of the original fabric 18 (see FIG. 3B). Further, the first hot melt supply device 27 intermittently intermittently melts the hot melt 28 for joining the side panel members 20 at predetermined pitches along the inner edges of the pair of side sheet members 21. So that it can be applied.

  Here, the hot melt 28 is one side of the isosceles trapezoidal side panel material 20 in the state where each side sheet material 21 is shifted by a half pitch with a pitch equal to the longitudinal direction of the disposable diaper 10 to be manufactured. Each is applied in a length that does not protrude from the bottom side that is the edge 20a. Further, the isosceles trapezoidal side panel material 20 that is continuously cut and formed has a length in the longitudinal direction of the disposable diaper 10 while alternately replacing the bottom side 20a and the top side on the outer peripheral surface of the suction roll 23. Adsorption is arranged at half the pitch. Accordingly, the pair of side sheet materials 21 coated with the hot melt 28 are sent out and continuously conveyed along the center line c, while rotating the outer peripheral surface of the suction roll 23 in synchronism with this, and the outer peripheral surface is moved to the side. By pressing against the sheet material 21, the bottom side portion that is one side edge portion 20 a overlapping the side sheet material 21 of each side panel material 20 is applied to each side edge portion of the pair of side sheet materials 21 via the hot melt 28. It will be joined alternately. Moreover, by this, the side panel material 20 will be attached to each side sheet | seat material 21 with the pitch equal to the length of the disposable diaper 10 in every other zigzag form (refer FIG.3 (b)).

  According to the first embodiment, as a pair of side sheet materials 21 to which the side panel material 20 is joined, elastic members (elastic members 16a, FIG. A three-dimensional gathering material joined with the same is used. The three-dimensional gather material is attached along both side edges of the top sheet 11 constituting the disposable diaper 10. By using a three-dimensional gathered material as the side sheet material 21, it becomes possible to use the material originally used for the disposable diaper 10 as it is, and the side surface can be efficiently processed by the manufacturing method of the first embodiment without using an additional material. A disposable diaper 10 having a panel 15 can be formed.

  Further, the side panel material 20 joined to the side sheet material 21 via the hot melt 28 is further strengthened with respect to the absorbent main body 14 via a heat seal, an ultrasonic seal, a pressure seal or the like in a later process. Can be joined. Further, for example, by providing a heat sealing roll, an ultrasonic sealing means, a pressure sealing means, etc. on the side opposite to the suction roll 23 sandwiching the pair of side sheet materials 21 that are continuously conveyed, the side panel is provided. It is also possible to directly seal and join the material 20 to the side sheet material 21.

  According to this 1st Embodiment, while conveying a pair of side sheet material 21 continuously, while moving so that the inner edge part which joined the side panel material 20 may be arrange | positioned in an outer edge part, a pair of side sheet material In the step of adjusting the interval and the position of the side panel member 20, for example, as shown in FIG. 2, a turn bar 24b and a direction changing roll 24c for guiding the belt-like sheet material that is continuously conveyed to change direction or bend. Is used. The turn bar 24b and the direction changing roll 24c are disposed at appropriate positions on the track on the downstream side of the suction roll 23 of the continuously conveyed side sheet material 21, thereby buffering the pair of side sheet materials 21 to each other. It guides so that it may change direction or bend while preventing it, and it is made to cross | intersect these and it moves so that the inner edge part which joined the side panel material 20 may be arrange | positioned at an outer edge part. Moreover, while adjusting the space | interval so that it may be positioned in the both-sides edge part of the disposable diaper 10 with which a pair of side sheet material 21 is manufactured, one side sheet material 21 is made relative to the other side sheet material 21. The side panel members 20 attached to the side sheet members 21 are adjusted so as to be aligned at the same position in the transport direction by guiding them so as to move with a delay (see FIGS. 3C and 3D). ).

  In the step of joining the pair of side sheet materials 21 adjusted in the interval and the position of the side panel material 20 while being continuously conveyed along the both side edges of the top sheet 11, for example, as shown in FIG. The hot melt 30 is continuously applied to the upper surface of each side sheet material 21 from the second hot melt supply device 29 arranged above the inner portion of the side sheet material 21. Moreover, the top sheet 11 supplied from a top sheet supply roll (not shown) is overlapped so as to straddle the side sheet materials 21 on both sides, and is pressed by the pressing rolls 31, whereby the pair of side sheet materials 21 is They are joined and integrated along both side edges of the top sheet 11 (see FIG. 4A).

  In the process of joining the absorbent body 13 and the back sheet 12 to the top sheet 11 to which the side sheet material 21 is joined, and cutting and dividing to form the disposable diaper 10, for example, in the same manner as in a conventional disposable diaper manufacturing method, The absorbent body 13 is arranged at the center of the upper surface of the sheet 11 and joined and integrated (see FIG. 4A), and elastic members such as thread rubber and flat rubber for forming leg gathers are formed on both side surfaces of the absorbent body 13. (Elastic member 16b, see FIG. 1) is disposed, and the back sheet 12 is joined so as to overlap the top sheet 11 and the pair of side sheet materials 21 while covering the absorber 13 and the elastic member (FIG. 4 ( b)), and further, by cutting at a predetermined pitch along the cutting line 32, individual disposable diapers 10 are formed. As a result, as shown in FIG. 1, a pair of side panels 15 made of the side panel material 20 are attached to both side edge portions of the vertically long absorbent main body 14, and the side sheet material 21 extends along both side portions. The disposable diaper 10 provided with the three-dimensional gather and the leg gathers by the side sheet material 21 and the back sheet 12 can be obtained quickly and efficiently.

  And according to the manufacturing method of the absorptive article of this 1st embodiment which consists of each above-mentioned process, a lot of side panel materials 20 formed in succession are predetermined. It is possible to attach to the position with high accuracy and stability, and excellent high-speed productivity of the disposable diaper 10 having the side panel 15 can be obtained. That is, according to the first embodiment, a large number of side panel materials 20 continuously formed by cutting the original fabric are temporarily separated from the pair of band-shaped side sheet materials 21 that are continuously conveyed. Then, each side panel member 20 is attached to the top sheet 11 by joining the side sheet members 21 along both side edges of the top sheet 11. Therefore, it is possible to join a large number of side panel members 20 to the top sheet 11 continuously and accurately through the band-shaped side sheet member 21 without attaching them to the top sheet 11 individually. At the same time, by using the belt-shaped side sheet material 21, it becomes possible to smoothly move and position a large number of the side panel materials 20 along a certain line. It becomes possible to improve the high-speed productivity of the diaper 10 easily.

  The present invention is not limited to the first embodiment, and various modifications can be made. For example, the absorbent article to be manufactured is not limited to the disposable diaper, and the present invention is applied to manufacture various absorbent articles having other side panels such as a napkin provided with a wing portion protruding. be able to. Further, the side panel material obtained by cutting the raw fabric does not necessarily have an isosceles trapezoidal shape, and may be a rectangular shape, a shape cut by a curved cutting line, or the like. Further, the belt-like side sheet material to which the side panel material is continuously transported and attached does not necessarily need to be a gather material that forms a three-dimensional gather, but other belt-like side sheet materials constituting the absorbent article, It may be a side sheet material to be attached to. Furthermore, the sheet member to which the side sheet material to which the side panel material is attached is not necessarily a top sheet (front surface sheet), but a back sheet (back surface sheet) or a sheet constituting another absorbent article. It may be a member.

  Moreover, the manufacturing method of this invention is not limited to the apparatus used in the said 1st Embodiment shown in FIG. 1, It can implement using another various apparatus. Further, as a means for moving the pair of side sheet materials to which the side panel materials are alternately attached so that the inner edge portion where the side panel materials are joined is arranged at the outer edge portion, the above-mentioned pair of side sheet materials is used. For example, as shown in FIG. 5, each side sheet material 21 is guided so as to be folded outward via the turn bar 24 b and the direction changing roll 24 c, so that the side panel material 21 is It can also be moved so that the joined inner edge is located at the outer edge. The 90-degree turn bar is simple as a device for changing the direction and can stably flow the web in high-speed operation. Therefore, the 90-degree turn bar can be preferably used in combination. In addition, it is preferable that the side panel material is not joined to the surface of the side sheet material wound around the 90-degree turn bar. This makes it possible to eliminate the dry edge of the side panel material.

It is a partial fracture top view which illustrates the disposable diaper manufactured by the manufacturing method of the absorptive article concerning a 1st embodiment of the present invention. It is a perspective view explaining the principal part of the manufacturing method of the absorbent article which concerns on 1st Embodiment of this invention. (A)-(d) is the abbreviation which explains each process until it cut | disconnects a raw fabric sequentially, forms a side panel material continuously, attaches to a pair of strip | belt-shaped side sheet material, and arranges in a conveyance direction. FIG. (A)-(c) joins the side sheet material which attached the side panel material along the both-sides edge part of a top sheet, and also joins an absorber and a back sheet, Then, it cuts and divides | segments an absorbent article. It is a schematic plan view explaining each process until manufacturing. It is a perspective view explaining the principal part of the manufacturing method of the absorbent article which concerns on other embodiment of this invention.

Explanation of symbols

10 Disposable diapers (absorbent articles)
11 Top sheet (surface sheet)
12 Back sheet (Back sheet)
13 Absorber 14 Absorbent Body 15 Side Panel 16 Leg Gather 17 Hook Material 18 Side Panel Material Raw Material 19 Cutting Line 20 Side Panel Material 20a One Side Edge 21 of Side Panel Material Side Sheet Material 22 Cutting Roll 23 Adsorption Roll 24a, 24c Direction change roll 24b Turn bar 25 Cutter blade 26 Hook material attaching device 27 First hot melt supply device 28, 30 Hot melt 29 First hot melt supply device 31 Press roll c Sending center line

Claims (6)

At least a pair of side panels provided so as to protrude from both side edges of a substantially vertically long absorbent main body comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and a liquid-holding absorber. A method for producing an absorbent article comprising:
A step of sequentially cutting the raw material fed in a strip shape along a cutting line intersecting the delivery center line to continuously form the side panel material, and sequentially feeding the formed side panel material along the delivery center line When,
With respect to a pair of belt-shaped side sheet materials that are arranged on both sides of the feed center line at a distance smaller than the width of the original fabric and are continuously conveyed along the feed center line, the side sheet material By joining one side edge portion of the side panel material that overlaps with the inner edge portion of the side sheet material, one side panel material is separated from the pair of side sheet materials at intervals in the delivery direction. A process of alternately attaching to each other;
The pair of side sheet materials to which the side panel materials are alternately attached are moved so that the inner edge portion where the side panel materials are joined is arranged at the outer edge portion while maintaining the state of being continuously conveyed. And adjusting the distance between the pair of side sheet materials and adjusting the side panel materials attached to the side sheet materials to be aligned at the same position in the transport direction;
A step of joining the pair of side sheet materials, the distance of which is adjusted and the position of the side panel material while being continuously conveyed, along both side edges of the sheet member constituting the absorbent article;
The manufacturing method of an absorbent article which consists of the process of cut | disconnecting and dividing and forming the absorbent article which has the said side panel, after joining the said absorber and another sheet member to the sheet | seat member to which the said side sheet material was joined.   The method for manufacturing an absorbent article according to claim 1, wherein the side panel member is joined to the inner edge of the side sheet member via an adhesive such as hot melt.   Bonding of the side panel material to the inner edge of the side sheet material is performed as temporary bonding via an adhesive such as hot melt, and in the subsequent process, main bonding is performed by heat sealing, ultrasonic sealing, or pressure sealing. The method for producing an absorbent article according to claim 1.   The method for manufacturing an absorbent article according to claim 1, wherein the side panel member is joined to the inner edge of the side sheet member by heat sealing, ultrasonic sealing, or pressure sealing.   The method for manufacturing an absorbent article according to any one of claims 1 to 4, wherein the sheet member to which a pair of side sheet materials to which the side panel material is attached is joined is the top sheet or the back sheet. 6. The means for moving the pair of side sheet materials that are continuously conveyed so that the inner edge portion to which the side panel materials are joined is arranged at the outer edge portion, comprising a combination of 90-degree turn bars. Manufacturing method for absorbent articles.

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