JP2014217413A - Method for manufacturing absorbent article and absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing an absorbent article capable of keeping the state that a side flap is folded in a stable manner, and capable of suppressing a crease or a twist at a joint portion of the side flap and an absorbent body, and a positional deviation of the side flap.SOLUTION: A method for manufacturing an absorbent article includes: a step of joining a fastening member to a side flap; a step of joining to a body sheet the side flap to which the fastening member is joined; a step of folding the side flap along the edge in the width direction of the body sheet; and a step of unifying the body sheet to which the side flap is folded and an absorbent body.

Description

  The present invention relates to a method for manufacturing an absorbent article having an absorbent body, a side flap extending outward in the width direction of the absorbent body, and a fastening member joined to the side flap.

  In Patent Document 1, an absorbent body having an absorbent body and a surface sheet disposed on the skin contact surface side of the absorbent body, a side flap extending outward in the width direction of the absorbent body, and a side flap are joined. A method of manufacturing an absorbent article having a fastening member is disclosed. The manufacturing method of the absorbent article of patent document 1 joins the side flap folded in the 1st process and the 1st process which folds the side flap with which the fastening member was joined to an absorptive main body along a longitudinal direction. A second step.

International Publication No. 2010/032397

  The side flaps of the absorbent article of Patent Document 1 are not provided continuously throughout the longitudinal direction of the absorbent article, but are disposed intermittently in the longitudinal direction. Therefore, after folding the side flaps in the first step of Patent Document 1, each side flap may be individually folded back to the original state, and the state where all the side flaps are folded cannot be stably maintained. is there.

  Moreover, generally the thickness of an absorber is thick in the structural member which comprises an absorbent article. Therefore, the thickness is different between the region where the absorbent body of the absorbent main body is disposed and the region where the absorbent body is not disposed, and a step is formed in the absorbent main body. In the 2nd process of patent documents 1, in order to join a side flap to an absorptive main part in which a level difference was formed, the whole joined surface of a side flap cannot be joined, or in a joined part of a side flap and an absorptive main part Wrinkles may occur and bonding defects may occur.

  Therefore, the present invention provides an absorbent article having an absorbent main body having an absorbent body and a top sheet and a side flap extending outward in the width direction of the absorbent main body in a stable state in which the side flap is folded. It is an object of the present invention to provide a method for manufacturing an absorbent article and an absorbent article that can be maintained at the same time, and can suppress wrinkles and kinks at the joint portion between the side flap and the absorbent main body, and the positional deviation of the side flap.

  In order to solve the above-described problems, an absorbent article manufacturing method according to the present disclosure includes an absorbent body, an absorbent body having a body sheet disposed on a skin contact surface side of the absorbent body, and the absorbent body. A side flap extending outward in the width direction, and a fastening member joined to the side flap and fastened to a non-skin contact side surface of the absorbent main body. The length in the longitudinal direction is shorter than the length in the longitudinal direction of the absorbent article, and the length in the longitudinal direction of the main body sheet is the entire area in the longitudinal direction of the absorbent article. A method of joining the fastening member to the side flap, a step of joining the side flap joined to the fastening member to the body sheet, and the side flap, End of the body sheet in the width direction And a step of folding along, and a step of integrating said body sheet the side flaps are folded and the absorber.

  Moreover, the absorbent article which concerns on this indication is extended in the width direction outer side rather than the absorbent main body which has a main body sheet | seat arrange | positioned at the absorber and the skin contact surface side of the said absorber. An absorbent article having a side flap and a fastening member joined to the side flap and fastened to a non-skin contact side surface of the absorbent main body, wherein the fastening member is joined In a state where the side flap is joined to the main body sheet, the side flap is folded along an end in the width direction of the main body sheet, and then the main body sheet and the absorber are integrated. The gist.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the absorbent article which can maintain stably the state by which the side flap was folded, and can suppress the wrinkle of the junction part of a side flap and an absorptive main body, and the position shift of a side flap, and Absorbent articles can be provided.

It is a top view of an absorptive article concerning an embodiment. It is AA sectional drawing shown in FIG. It is a top view of the state which folded the side flap of the absorbent article shown in FIG. It is BB sectional drawing shown in FIG. It is a figure which shows typically the manufacturing method of the absorbent article which concerns on embodiment. It is a figure which shows typically the manufacturing method of the absorbent article which concerns on a modification.

  Hereinafter, an absorbent article manufacturing apparatus and an absorbent article manufacturing method according to the present invention will be described with reference to the drawings. Specifically, (1) composition of an absorptive article, (2) manufacturing method of an absorptive article, (3) an operation and effect, and (4) other embodiments are explained.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(1) Configuration of Absorbent Article First, the configuration of the absorbent article 1 according to the present embodiment will be described with reference to the drawings. FIG. 1 is a plan view showing an absorbent article 1 according to this embodiment. In addition, the top view shown in FIG. 1 is the state which extended | stretched the main body sheet | seat etc. to the state which cannot see wrinkles, such as leg gathers provided in an absorbent article. In this embodiment, the absorbent article 1 is an open-type disposable diaper.

  In this embodiment, an open-type diaper is not a diaper that has been molded into a pants shape in advance, but is in a state of being unfolded in a state before use, and fastening predetermined parts of the product with fastening members or the like Refers to a diaper worn by the user.

  In the longitudinal direction L of the absorbent article 1, the absorbent article 1 corresponds to the front waistline area S1 corresponding to the wearer's front waistline, the rear waistline area S2 corresponding to the wearer's back waistline, and the wearer's inseam And a crotch region S3 located between the front waistline region S1 and the rear waistline region S2.

  The absorbent article 1 includes an absorbent main body 2 and side flaps 10 extending outward in the width direction from the absorbent main body 2. The side flap 10 is disposed in the rear waistline region. The absorptive main body 2 is disposed across the front waistline region, the crotch region, and the rear waistline region. The crotch region is a region where the outer end in the width direction of the absorbent main body is recessed more inward in the width direction than the front waistline region and the rear waistline region. The width direction outer side edge part of a crotch region comprises a pair of leg periphery opening part 21 arrange | positioned along a wearer's leg periphery.

  The absorbent main body 2 includes an absorbent body 3, a main body sheet 4 disposed on the skin contact surface side of the absorbent body 3, a liquid-permeable surface sheet 5 that covers the skin contact surface of the absorbent body 3, and an absorbent body. 3, a back sheet 6 disposed on the non-skin contact surface side, a leg side elastic member 7 as a main body elastic member, and a leg elastic member 8 positioned on the outer side in the width direction than the leg side elastic member 7. .

  The top sheet 5 covers the skin contact surface of the absorber. The surface sheet 5 should just be comprised so that the skin contact surface of the absorber 3 may be covered at least. The topsheet 5 of the present embodiment extends outward in the width direction from the absorber 3. The top sheet 5 is formed of a liquid-permeable sheet such as a hydrophilic nonwoven fabric or woven fabric, an apertured plastic film, or an apertured hydrophobic nonwoven fabric.

  The main body sheet 4 is disposed on the skin contact surface side of the absorber. The main body sheet 4 covers the outer end in the width direction of the top sheet 5, and extends outward in the width direction from the top sheet 5. The main body sheet 4 need only be disposed on the skin contact surface side of the absorbent body 3, may be disposed so as not to overlap the top sheet 5, and is provided so as not to overlap the absorbent body 3. Also good. The main body sheet 4 may be formed of a liquid-permeable sheet such as a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, or an apertured hydrophobic nonwoven fabric, or may be formed of a liquid-impermeable sheet.

  The width direction inner side edge part of the main body sheet | seat 4 is folded by the crease | fold along the longitudinal direction as a base point. A leg side elastic member 7 is joined between the folded main body sheet 4. The leg side elastic member 7 expands and contracts at least in the longitudinal direction. The main body sheet 4 and the leg side elastic member 7 constitute an upright leg side gather located on the skin contact surface side of the absorbent body 3.

  The absorber 3 is provided between the top sheet 5 and the back sheet 6. Absorber 3 absorbs excrement, such as a wearer's bodily fluid. The absorbent body 3 is formed by an absorbent core such as pulverized pulp as a fiber or a superabsorbent polymer, and a core wrap that wraps the absorbent core. In the absorbent body 3, a plurality of slits 3 </ b> A are formed along the longitudinal direction L of the absorbent article. The slits 3A are arranged in three rows at intervals in the longitudinal direction, and are arranged in three rows at intervals in the width direction W of the absorbent article.

  The back sheet 6 is composed of a liquid-impermeable film (hereinafter referred to as a back film) formed of a waterproof film (for example, polyethylene). A target portion 6A to which the fastening member is fastened is provided in the front waistline region of the back sheet.

  The leg elastic member 8 is disposed along the leg opening 21 in the crotch region. The leg elastic member expands and contracts at least in the longitudinal direction. Three leg elastic members 8 of the present embodiment are arranged at intervals in the width direction.

  In addition, although the back surface sheet 6 of this Embodiment is a sheet | seat arrange | positioned on the outer surface of a disposable diaper and contact | abuts a wearer's clothes, an exterior sheet is provided in the non-skin contact surface side of a back surface sheet, and a wearer It may be configured such that the exterior sheet comes into contact with the clothes.

  The side flap 10 is a sheet that extends outward in the width direction from the absorbent main body. The side flap 10 is joined between the main body sheet 4 and the back sheet 6. The side flap 10 is comprised by the liquid-permeable nonwoven fabric sheet, for example.

  The length in the longitudinal direction of the main body sheet 4 is the entire region in the longitudinal direction of the absorbent article. On the other hand, the length in the longitudinal direction of the side flap 10 is shorter than the length in the longitudinal direction of the absorbent article, and is a part of the length in the longitudinal direction of the absorbent article. Therefore, when manufacturing an absorbent article, the main body sheet 4 conveys the main body sheet continuous body 4C (see FIG. 5) continuous in the conveying direction, and the side flaps 10 are intermittently attached to the main body sheet continuous body 4C. Deploy. In addition, although the side flap 10 of the present embodiment is provided only in the rear waistline region, it may be provided not only in the rear waistline region but also in the front waistline region.

  The fastening member 11 extends outward in the width direction from the side flap 10 in the rear waistline region S2. The fastening member 11 is joined to the outer end of the side flap 10 in the width direction. The fastening member 11 is configured to be fastened to the target portion 6A in the front waistline region S1. The fastening member 11 is formed of a hook-and-loop fastener or an adhesive. The fastening member of the present embodiment is made of an adhesive.

  The fastening member 11 is bonded to the skin contact side surface and the non-skin contact side surface of the side flap 10, and is provided with the side flap 10 interposed therebetween. The fastening member 11 realizes a state where the fastening member 11 is expanded outward in the width direction (a state of the fastening member on the upper side in FIG. 1) and a state where the fastening member 11 is folded (a state of the fastening member on the lower side in FIG. 1). The fastening member 11 is in a folded state before use. The pressure-sensitive adhesive surface to which the pressure-sensitive adhesive is applied in the fastening member 11 is disposed on the inner side in the thickness direction in a state before use. The fastening member 11 is developed by the wearer when used, and the adhesive surface is exposed.

  The wearer applies the front waistline region of the absorbent article to the wearer's belly side, and draws the side flap 10 toward the front waistline region side in a state where the rear waistline region of the absorbent article is applied to the wearer's back side, By bonding the adhesive surface of the fastening member 11 to the target part 6A in the front waistline region, the absorbent article can be held on the wearer's body.

  In the absorbent article thus configured, both end portions in the width direction of the side flaps 10 are folded inward in the width direction before use, and the inner end portions (folded in the width direction) of the folded side flaps 10 are folded. In the state before the side flap 10 is pressed, the widthwise outer end portion of the side flap 10 is temporarily fixed to the main body sheet 4. FIG. 3 is a plan view of the absorbent article 1 in a state where the side flaps 10 are folded, and FIG. 4 is a cross-sectional view taken along line BB shown in FIG.

(2) Manufacturing method of absorbent article Next, an example of the manufacturing method of the absorbent article which concerns on this embodiment is demonstrated using FIG. In FIG. 5, for convenience of explanation, only one of the main body sheet and the side flaps provided on the left and right sides is shown. In addition, an existing method can be used for a method not described in the present embodiment. Moreover, the manufacturing method demonstrated below is an example and can also be manufactured with another manufacturing method. The manufacturing method of the absorbent article includes a joining step S11 of the side flap 10 and the fastening member 11, a joining step S12 of the main body sheet 4 and the top sheet 5, a joining step S13 of the side flap 10 and the main body sheet 4, and the side flap. It includes at least a folding step S14 and an absorber joining step S15.

  In the joining step S11 of the side flap 10 and the fastening member, the fastening member 11 is joined to the side flap continuous body 10C in which the side flaps are continuous in the longitudinal direction. Specifically, the fastening member 11 is joined to the outer end portion in the width direction of the side flap continuum 10C. The edge part which joins this fastening member 11 is edge part 10A of the side flap 10 located in the outer side of the width direction in the state which was attached to the absorptive main body and the side flap was expand | deployed. Next, the individual side flaps 10 to which the fastening members 11 are joined can be manufactured by cutting the side flap continuous body 10 </ b> C into the product length of the side flaps.

  In this embodiment, the fastening member 11 is joined to the continuous side flap 10C. For example, the fastening member 11 is fastened to the outer end in the width direction of the side flap 10 cut into individual product lengths. The member 11 may be joined.

  In addition, various methods can be used to join the side flap 10 and the fastening member. For example, the side flap 10 and the fastening member can be joined with an adhesive. The fastening member of the present embodiment is joined to the skin contact side surface and the non-skin contact side surface of the side flap 10, but the skin contact side surface of the side flap 10 and the non-skin What is necessary is just to be joined to at least one among the surfaces of the contact side.

  Next, the main body sheet 4 and the surface sheet joining step S12 join the main body sheet 4 and the surface sheet. More specifically, the main body sheet continuous body 4C in which the main body sheet 4 is continuous in the longitudinal direction and the top sheet continuous body 5C in which the top sheet is continuous in the longitudinal direction are joined. The main body sheet continuous body 4C and the top sheet continuous body 5C are transported in the transport direction MD along the longitudinal direction. The main body sheet continuum 4C is folded based on a fold along the longitudinal direction, and the leg side elastic member 7 is arranged between the folded main body sheet continuum 4C. In this way, the surface on the non-skin contact side of the main body sheet continuous body 4C that is continuous in the conveying direction and the surface on the skin contact side of the top sheet continuous body 5C are joined.

  In addition, the order of joining process S11 of the side flap 10 and the fastening member 11, and joining process S12 of the main body sheet | seat 4 and the surface sheet 5 is not limited. For example, you may comprise so that the joining process S11 of the side flap 10 and a fastening member may be performed after joining process S12 of the main body sheet | seat 4 and a surface sheet.

  Next, in the side flap 10 and main body sheet joining step S <b> 13, the side flap 10 to which the fastening member 11 is joined and the main body sheet 4 are joined. More specifically, the side flaps 10 are temporarily fixed intermittently in the conveying direction with respect to the surface on the skin contact side of the main body sheet continuous body. Temporary fixing is fixing that can be peeled off. Specifically, the side flap 10 may be bonded to the main body sheet 4 before use and fixed so that the side flap 10 can be peeled from the main body sheet 4 at the time of use. In FIG. 4, the temporarily fixed part 32 of the skin contact surface of the main body sheet | seat continuous body 4C and the side flap 10 is shown typically.

  Subsequently, in side flap folding process S14, the side flap 10 is folded along the edge part of the width direction of a main body sheet | seat continuous body. Specifically, the outer end portion (inner width end portion 10B in the width direction in the product state) of the cross direction CD that intersects the conveying direction of the side flaps 10 is folded back to the non-skin contact surface side of the main body sheet continuous body 4C. At this time, the folded portion of the side flap 10 is fixed to the non-skin contact surface of the main body sheet continuous body 4C. In FIG. 1, the fixing portion 31 between the non-skin contact surface of the main body sheet continuous body 4 </ b> C and the folded portion of the side flap 10 is shown by hatching.

  Next, in the absorbent body joining step S15, the main body sheet 4 and the absorbent body are integrated. More specifically, the skin contact surface of the absorbent body 3 and the main body sheet 4 to which the top sheet continuous body 5C and the side flaps 10 are joined are joined. By this process, the absorbent body 3, the continuous surface sheet 5C, the side flap 10, the fastening member 11, and the main body sheet 4 are integrated. Before the absorbent body joining step, the absorbent body and the back sheet 6 are joined, and in the absorbent body joining process, the main body sheet 4 in which the absorbent body and the back surface sheet, the top sheet continuous body, and the side flaps 10 are joined. And may be joined. Or you may join the back surface sheet 6 after an absorber joining process. The side flap 10 is arrange | positioned between the main body sheet | seat 4 and a back surface sheet | seat by joining a back surface sheet | seat to an absorber, the main body sheet | seat 4, etc. FIG.

  In addition, the process of arrange | positioning other structural members, such as a leg elastic member, the process of forming a leg periphery opening part, etc. can be manufactured using a well-known manufacturing method.

  The absorbent article thus manufactured includes an absorbent body, an absorbent main body having a main body sheet 4 disposed on the skin contact surface side of the absorbent body, and a side extending outward in the width direction from the absorbent main body. An absorbent article having a flap 10 and a fastening member joined to the side flap 10 and fastened to the non-skin contact side surface of the absorbent main body, wherein the side flap is joined to the fastening member After the side flap 10 is folded along the widthwise end of the main body sheet 4 in a state where the main body sheet 4 is joined to the main body sheet 4, the main body sheet 4 and the absorbent body are integrated.

  Since the manufacturing method of the absorbent article shown in FIG. 5 joins the main body sheet 4 and the surface sheet 5 before joining the side flap 10 to the main body sheet 4, the side flap 10 is joined to the main body sheet 4, And after folding the side flap 10, a main body sheet | seat can be rapidly joined with respect to the absorber 3 and the back surface sheet 6. FIG. The folded back end portion 10 </ b> B of the side flap 10 is joined between the main body sheet 4 and the back sheet 6. For example, when the adhesive is applied to the folded end portion 10B of the side flap 10 and the side flap 10 is fixed to the main body sheet 4 or the like via the adhesive, the side flap folding step S14 and the back sheet 6 are performed. If a plurality of steps (for example, a step of bonding the main body sheet and the surface sheet) are performed between the bonding steps, the adhesive dries out or the adhesive sticks to other members during the conveyance process. Sometimes. However, since the side flap folding process is performed as the next process in which the main body sheet 4 and the top sheet 5 are joined, the folded end portion 10B of the side flap 10 can be smoothly fixed between the main body sheet 4 and the back sheet 6. .

  Further, when the joining step S12 of the main body sheet 4 and the top sheet 5 is after the side flap 10 and the main body sheet joining step S13, the main body sheet and the top sheet to which the side flaps are joined intermittently are joined. Therefore, as compared with the case where the main body sheet and the surface sheet to which the side flap is not bonded are bonded as in the present embodiment, the main body sheet and the surface sheet are gently brought closer to each other, and the main body sheet and the surface sheet are bonded. There is a need. However, since the main sheet and front sheet joining step S12 is performed before the side flap 10 and main sheet joining step, the conveyance distance in the side flap 10 and front sheet joining step can be shortened.

  The absorbent article includes a liquid-permeable surface sheet that covers the skin contact surface of the absorber, and a main body elastic member that is bonded to the main body sheet 4 and expands and contracts in the longitudinal direction. The member constitutes an upright leg side gather located on the skin contact surface side of the absorbent body, and the side flaps 10 are joined to the main body sheet 4 joined to the top sheet.

  Further, the absorbent article is temporarily fixed so that one end in the width direction of the side flap 10 (outer end in the width direction in the unfolded state) 10A can be peeled off on the skin contact side surface of the main body sheet 4; The other end in the width direction of the side flap 10 (inner end in the width direction in the unfolded state) 10B is fixed to the non-skin contact side surface of the main body sheet 4, and the side flap 10 is temporarily fixed and fixed. In this state, the length W1 (see FIG. 3) in the width direction between one end portion 10A in the width direction of the side flap 10 and the crease FL along the side portion of the body sheet 4 of the side flap 10 is the body sheet. 4 is shorter than the length W2 in the width direction (see FIG. 3).

(3) Actions / Effects After folding the side flaps 10 that are arranged intermittently and then trying to join the side flaps 10 to the main body sheet 4, the side flaps 10 are not continuous and are easy to move individually. There is a possibility that the side flap 10 once folded may be folded back. On the other hand, since the manufacturing method of the absorbent article which concerns on this Embodiment joins the side flap 10 to the main body sheet | seat 4, and folds, since the folded side flap 10 can be hold | maintained in the main body sheet | seat 4, side It is easy to stably maintain the folded state of the flap 10.

  Moreover, after joining the side flap 10 to the main body sheet | seat 4, the said main body sheet | seat 4 is integrated with an absorber. When the side flap 10 is joined to the main body sheet 4, the step due to the thickness of the absorbent body is not formed on the main body sheet 4, so the side flap 10 and the absorbent body can be brought into contact with each other on a smooth surface. Shake can be suppressed. Moreover, when the level | step difference by the thickness of an absorber is formed in the main body sheet | seat 4, the position of the main body sheet | seat 4 or the side flap 10 may shift | deviate by the level | step difference. However, when the side flap 10 is joined to the main body sheet 4, the step due to the thickness of the absorbent body is not formed on the main body sheet 4, so that the positional deviation of the side flap 10 can be suppressed.

  In particular, the leg side elastic member is joined to the main body sheet continuous body 4C in an extended state, and the main body sheet continuous body 4C is partially subjected to the stretching force by the leg side elastic member. It may be difficult to maintain a smooth state. In such a main body sheet 4, when the level | step difference by the thickness of an absorber is formed, the position of the main body sheet | seat 4 or the side flap 10 may shift | deviate by the level | step difference. However, when the side flap 10 is joined to the main body sheet 4, a step due to the thickness of the absorber is not formed on the main body sheet 4, so that the positional deviation of the side flap 10 can be effectively suppressed.

  The side flaps 10 extend outward in the width direction from the main body sheet 4 and are disposed intermittently with respect to the main body sheet 4. Thus, in the side flap 10 arrange | positioned intermittently, the part extended in the width direction outer side rather than the main body sheet | seat 4 is difficult to hold | maintain at the time of conveyance, and may be beaten at the time of conveyance. However, in the product state, a portion that becomes the outer end portion in the width direction of the side flap 10 is temporarily fixed to the main body sheet 4 and the side flap 10 is folded, so that an area extending outward in the width direction from the main body sheet 4 is increased. It can be made small and it can suppress that side flap 10 is beaten at the time of conveyance.

  Moreover, the process of folding the side flap 10 is comprised so that it may fold based on the position which does not overlap with a fastening member. The folds of the side flaps are formed so as not to overlap the fastening member. For example, when a crease is formed in the fastening member, a desired engagement force may not be obtained due to deformation of the adhesive surface of the crease portion or the engagement member. However, by folding the side flap 10 based on a crease that does not overlap with the fastening member, no crease is formed on the fastening member, and the engaging force of the fastening member can be stably maintained.

  In a state where the side flap 10 is temporarily fixed and fixed, the width direction length W1 between one end portion 10A in the width direction of the side flap 10 and the fold FL along the side portion of the main body sheet 4 of the side flap 10 ( 3) is shorter than the length W2 of the main body sheet 4 in the width direction (see FIG. 3), and therefore the side flaps can be arranged more smoothly.

  The width W1 between the width direction end portion 10A of the side flap 10 and the fold line FL along the side portion of the main body sheet 4 of the side flap 10 is the width of the side flap 10 when the side flap 10 is folded. The length of the direction. For example, when the length W1 in the width direction of the side flap 10 is longer than the length W2 in the width direction of the main body sheet 4, the end portion 10A in the width direction of the side flap 10 exceeds the main body sheet 4, and the width Arranged inside the direction. If the end portion 10 </ b> A in the width direction of the side flap 10 exceeds the main body sheet 4, the side flap 10 is disposed on the step due to the inner end portion of the main body sheet 4, and it is difficult to maintain a smooth state. However, since the length W1 in the width direction of the side flap 10 is shorter than the length W2 in the width direction of the main body sheet 4, the side flap 10 can be disposed on the main body sheet 4, and wrinkles and kinks due to steps can be suppressed.

(4) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  Then, based on FIG. 6, the manufacturing method of the absorbent article which concerns on a modification is demonstrated. In the description of the modification, only the configuration different from the above-described embodiment will be described, and the description of the same configuration as the embodiment will be omitted by using the same reference numerals.

  The manufacturing method of the absorbent article which concerns on a modification is comprised so that side flap folding process S14 may be performed before joining process S12 of a main body sheet | seat and a surface sheet. That is, the manufacturing method of the absorbent article includes a side flap 10 and fastening member joining step S11, a side flap 10 and body sheet joining step S13, a side flap folding step S14, and a body sheet and topsheet joining step. It is performed in the order of S12 and absorber joining step S15.

  The absorbent article thus manufactured further includes a liquid-permeable surface sheet that covers the skin contact surface of the absorbent body, and a main body elastic member that is bonded to the main body sheet and expands and contracts in the longitudinal direction. And the leg side elastic member comprises the standing leg side gather located in the skin contact surface side rather than an absorber, and the surface sheet is joined with respect to the main body sheet | seat with which the side flap 10 was joined.

  In addition, in the side flap 10 and main body sheet joining step S13, the side flap 10 is temporarily fixed to the skin contact side surface of the main body sheet, and the side flap 10 is temporarily fixed to the skin contact side surface of the top sheet. You may comprise as follows. When one end 10A of the side flap 10 extends to the inner side in the width direction beyond the main body sheet, the inner side in the width direction exceeds the main body sheet by joining the side flap 10 to the main body sheet and the top sheet. The side flaps 10 extending to the upper side can be temporarily fixed, and the side flaps 10 can be prevented from being twisted during conveyance, and can be conveyed stably.

  Moreover, when manufacturing the absorbent article of a different size, the length of the width direction of a main body sheet | seat or the length of the width direction of a surface sheet can be changed. In this case, when the top sheet and the main body sheet are joined before the side flap folding step, the folding position of the side flaps in the intersecting direction varies depending on the size. Therefore, it is necessary to change the position of the apparatus for folding the side flaps in the crossing direction, or to use a folding apparatus that can fold the side flaps at different folding positions, which increases the size of the manufacturing apparatus. However, since the main body sheet and the top sheet are joined after the side flap folding step, absorbent articles having different sizes can be easily manufactured.

1: Absorbent article 2: Absorbent body 3: Absorber 3A: Slit 4: Body sheet 5: Top sheet 6: Back sheet 6A: Target part 7: Leg side elastic member 8: Leg elastic member 10: Side flap 11: Fastening member 21: leg opening 31: joining region L: longitudinal direction W: width direction CD: cross direction MD: transport direction

Claims (10)

An absorbent body having an absorbent body and a body sheet disposed on the skin contact surface side of the absorbent body;
Side flaps extending outward in the width direction from the absorbent main body,
A fastening member joined to the side flap and fastened to the non-skin-contacting surface of the absorbent main body,
The length in the longitudinal direction of the side flap is shorter than the length in the longitudinal direction of the absorbent article,
The length of the main body sheet in the longitudinal direction is the entire lengthwise direction of the absorbent article, and is a method for producing an absorbent article for producing an absorbent article,
Bonding the fastening member to the side flap;
Joining the side flaps joined to the fastening member to the body sheet;
Folding the side flap along the widthwise end of the body sheet;
The manufacturing method of an absorbent article which has the process integrated with the said main body sheet | seat and the said absorber. A liquid-permeable surface sheet covering the skin contact surface of the absorber;
A main body elastic member joined to the main body sheet and extending and contracting in the longitudinal direction; and
The main body sheet and the main body elastic member constitute an upright leg side gather located on the skin contact surface side of the absorber,
2. The method according to claim 1, further comprising a step of joining the topsheet and the main body sheet between a step of joining the side flap and the fastening member and a step of joining the side flap and the main body sheet. Manufacturing method for absorbent articles. A liquid-permeable surface sheet covering the skin contact surface of the absorber;
A main body elastic member joined to the main body sheet and extending and contracting in the longitudinal direction; and
The main body sheet and the main body elastic member constitute an upright leg side gather located on the skin contact surface side of the absorber,
The absorbent article according to claim 1, further comprising a step of joining the topsheet and the main body sheet between the step of folding the side flaps and the step of integrating the main body sheet and the absorber. Production method. In the step of joining the side flap and the main body sheet, the side flap is temporarily fixed to the skin contact side surface of the main body sheet in a peelable manner,
The step of folding the side flap includes folding the side flap to the non-skin contact surface side of the main body sheet, and fixing the folded side flap to the non-skin contact surface of the main body sheet. 4. A method for producing an absorbent article according to 3.   The step of joining the side flap and the main body sheet temporarily fixes the side flap to the skin contact side surface of the main body sheet and temporarily fixes the side flap to the skin contact side surface of the top sheet. The manufacturing method of the absorbent article of Claim 4.   The method for manufacturing an absorbent article according to any one of claims 1 to 5, wherein the step of folding the side flaps is performed with a position that does not overlap the fastening member as a base point. An absorbent body having an absorbent body and a body sheet disposed on the skin contact surface side of the absorbent body;
Side flaps extending outward in the width direction from the absorbent main body,
An absorptive article joined to the side flaps, and a fastening member fastened to the non-skin contact surface of the absorbent main body,
After folding the side flap along the widthwise end of the main body sheet with the side flap bonded to the fastening member bonded to the main body sheet, the main body sheet and the absorbent body are folded. Absorbent article constructed integrally. A liquid-permeable surface sheet covering the skin contact surface of the absorber;
A main body elastic member joined to the main body sheet and extending and contracting in the longitudinal direction; and
The main body sheet and the main body elastic member constitute an upright leg side gather located on the skin contact surface side of the absorber,
The absorbent article according to claim 7, wherein the side flap is bonded to the main body sheet bonded to the top sheet. A liquid-permeable surface sheet covering the skin contact surface of the absorber;
A main body elastic member joined to the main body sheet and extending and contracting in the longitudinal direction; and
The main body sheet and the main body elastic member constitute an upright leg side gather located on the skin contact surface side of the absorber,
The absorbent article according to claim 7, wherein the top sheet is bonded to the main body sheet to which the side flaps are bonded. One end in the width direction of the side flap is temporarily fixed to the skin contact side surface of the main body sheet in a peelable manner,
The other end of the side flap in the width direction is fixed to the non-skin contact side surface of the main body sheet,
In the state where the side flap is temporarily fixed and fixed, the length in the width direction between one end portion in the width direction of the side flap and the crease along the side portion of the main body sheet of the side flap is: The absorbent article in any one of Claims 7-9 shorter than the length of the width direction of the said main body sheet | seat.

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