JP5342962B2 - Pants-type wearing article - Google Patents

Description

  The present invention relates to a pants-type wearing article.

  The abdominal side and back side of the outer layer material are joined to form a linear side seal portion extending in the height direction on the left and right sides around the wearer's waist, and a waist opening and a pair of leg openings are defined. There are pants-type diapers or diaper covers. Such pants-type wearing articles are becoming more and more widely used especially for infants who are getting older than tape-type wearing articles. In addition, it is effective for the training of infants wearing pants. In adult diapers, pants-type diapers are suitable for users who are particular about the independence of raising their own pants or need such rehabilitation.

  Such a pants-type wearing article can break the side seal part and separate this part to remove the diaper. In this way, for example, when an infant or care recipient needs to defecate, the diaper is broken and opened without dragging the filth from the thighs to the toes, and the diapers can be left standing or lying on their back. It is possible to remove it from the crotch while sleeping.

  In a pant-type diaper brief, a rectangular patch is lined on the inside of a polyethylene jacket sheet, and the jacket sheet is stitched to form a joint at the side extending from the waist opening to the leg opening. Is disclosed (see Patent Document 1). In this diaper brief, a thread is disposed at a position inside the coupling portion of the side portion. A part of the yarn extends to the leg opening side, and the side of the diaper brief can be broken by pulling the extended part to the side of the diaper. However, in this diaper brief, the yarn is arranged on the inner side of the joint portion sewn as described above, and the yarn does not reach the waist opening, so the reliability of the side portion against tearing is low.

  Also, a pant-type diaper is disclosed in which a joining member is installed between the ventral side portion and the back side portion of the outer layer material (see Patent Document 2). The joint member has a central knob, a first break guide line consisting of a plurality of cuts extending from the knob toward the waist opening, and a second break guide line consisting of a plurality of cuts extending toward the leg opening. Is provided. The knob can be pulled out to the outside of the diaper, and by pulling the knob to the outside of the diaper, the plurality of cuts are sequentially broken and the joining member is separated along the breaking guide line. The Thereby, although the belly side part and back side part of a pants-type diaper can be divided | segmented, the structure of a joining member is complicated as mentioned above.

JP-A-57-77304 JP 2007-260145 A

  An object of the present invention is to provide a pants-type wearing article and a method for manufacturing the same, which can easily and reliably peel and unfold the side seals of the side parts when removing after wearing while maintaining sufficient strength at the time of wearing. Also, it is an object to provide a pants-type wearing article that can be suitably used for high-speed production without requiring a complicated structure and processing, as well as the above-described good peelability and strength at the time of wearing, and a method for producing the same. And

  The present invention is a pants-type wearing article having a waist opening and a pair of leg openings, and having a pair of left and right side seals extending from the waist opening to the leg openings, At least one of the seal portions provides a pants-type wearing article in which the ventral side portion and the back side portion of the outer layer material are joined to each other via a peeling member at the side portion of the pants-type wearing article.

  Further, the present invention is a manufacturing method for manufacturing the above-described pants-type wearing article, the step of continuously conveying one or more outer layer material webs forming the outer layer material, the material forming the peeling member as the outer layer When disposing on the material web, the step of intermittently disposing the outer layer material web in either the left or right direction of conveyance of the outer layer material web in the conveying direction, the material forming the peeling member by raising and facing the left and right of the outer layer material The step of sandwiching, the step of joining the outer layer material web and the material forming the peeling member simultaneously or sequentially with the sandwiching by the outer layer material web, both the outer layer material web and the material forming the peeling member in the conveying direction The manufacturing method of the underpants type wearing article including the process cut | judged in the orthogonal direction is provided.

  The pants-type wearing article of the present invention, while maintaining sufficient strength at the time of wearing, when removing it after wearing, simply and reliably peel off the side seal of the side, and develop the wearing article at this part well Can do. In addition to the above-mentioned good peelability and strength at the time of wearing, the strength at the time of wearing can be sufficiently maintained, and it is possible to suitably cope with high-speed production without requiring a complicated structure and processing. Furthermore, according to the manufacturing method of the present invention, the above-mentioned pants-type wearing article can be manufactured at high speed and in large quantities with stable quality.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway perspective view schematically showing a pants-type disposable diaper as an embodiment (Embodiment 1) according to the present invention as a generally worn shape as viewed from the upper left side of the wearer. 2A is an enlarged cross-sectional view taken along the line II-II shown in FIG. 1, and FIG. 2B is a further enlarged cross-sectional view of the circle. It is the perspective view which expanded and showed the periphery of the left side seal part shown in FIG. 1, and is the perspective view which showed typically the state when peeling off a side seal. It is the partially notched perspective view which showed typically the periphery of the left side seal part of the underpants type diaper of another embodiment (Embodiment 2) in this invention. It is the partial notch perspective view which showed typically the periphery of the left side seal part of the underpants type diaper of another embodiment (Embodiment 3) in this invention. It is process explanatory drawing which showed typically one embodiment (embodiment 1) of the manufacturing method of this invention with the perspective view. It is process explanatory drawing which showed another embodiment (embodiment 2) of the manufacturing method of this invention typically with the perspective view.

Hereinafter, the underpants type disposable diaper which is preferable embodiment of this invention is demonstrated in detail.
FIG. 1 is a partially cutaway perspective view schematically showing a pants-type disposable diaper 10 as Embodiment 1 of the present invention as a generally worn shape as seen from the upper left side of the abdomen. 2A is an enlarged cross-sectional view taken along the line II-II shown in FIG. 1, and FIG. 2B is a further enlarged cross-sectional view of the circle. The diaper of Embodiment 1 has a waist opening Wo and a pair of leg openings Lo, and extends in the wearer's height direction from the waist opening Wo to the leg opening Lo on the left and right sides of the diaper. A seal portion 3 is provided. Here, the side flap part Fs which makes the side part of a diaper is a part extended outward from the side edge of the absorptive main body 2 (refer FIG. 1). And the side seal part 3 has a sheet-like side edge part (abdominal side edge part 1as) and a side edge part (back side edge part 1bs) of the back side part 1b in the outer layer material 1. Each of the peeling members 4 is overlapped and joined in the shape of a palm while sandwiching the peeling member 4 (see FIG. 2). The side edge portion is a wide region in the side flap portion Fs, and the side seal portion 3 may be configured to be bonded or partially bonded to the entire side edge portion, for example, You may have the part of the outer-layer material 1 which is not joined to the outer side of the side seal part 3. FIG.

  The palmar overlapping structure of the side edges may be changed as necessary. For example, the skin side of the abdominal side edge 1as and the back side edge 1bs of the ventral side edge 1as are not opposed to each other. The non-skin surface side may be overlapped via the peeling member 4 or vice versa. In the first embodiment, the abdomen portion 1a and the back portion 1b constituting the outer layer material are made of a continuous sheet material via a crotch portion 1c (a member portion corresponding to the crotch portion E in the diaper of FIG. 1). However, the abdomen portion 1a, the back portion 1b, and the crotch portion 1c are made of different sheet materials and joined at a predetermined position, or are combined with another functional member or the like. It may be a thing. Or as shown in FIG. 7, the structure which arrange | positions in the state which the sheet | seat material of the abdominal part, the sheet | seat of the back | dorsal part, and the material isolate | separated, and this is connected with an absorptive main body may be sufficient.

  In the disposable diaper 10 of the present embodiment, the outer layer material 1 disassembled and developed at the side seal portion has an hourglass shape, covers the absorbent main body 2, and further outwards on both front and rear side edges in the longitudinal direction of the absorbent main body 2. The front flap portion Ff and the rear flap portion Fr that extend, and the side flap portion Fs that extends outward from the left and right side edges in the width direction of the absorbent main body 2 are provided. In the first embodiment, the outer layer material 1 is composed of two layers of outer layer nonwoven fabric, and a predetermined member such as a string-like elastic member (not shown) is incorporated between the outer layer nonwoven fabrics. Specifically, an elastic member forming a gather extending in the direction of the waistline is disposed at the edge in the vicinity of the waist opening Wo and the center of the waistline region D, respectively, and the waist part and the waistline of the wearer are appropriately tightened. Shows fit. In addition, an elastic member is similarly disposed in the vicinity of the edge of the leg opening Lo, and the wearable foot and the leak prevention of liquid etc. from this portion are appropriately tightened around the base of the wearer's foot. Demonstrate.

  An absorbent main body 2 is disposed on the skin surface side (wearer side) of the outer layer material 1. The absorbent main body 2 includes an absorbent body 2b in which an absorbent core composed of stacked pulp fibers, absorbent polymers, and the like is sandwiched between liquid-permeable fiber sheets. The absorbent main body 2 encloses the absorbent body 2b with a top sheet 2c formed in a composite form with a liquid-permeable top sheet at the center and water-repellent solid cuffs (not shown) on both sides, and further impermeable to liquid. The back sheet 2a is attached to a surface on the outer layer material 1 side of the top sheet 2c including the absorber 2b. A method for attaching the absorbent main body 2 to the outer layer material 1 is not particularly limited. For example, a hot melt adhesive can be applied and bonded in a planar shape, a linear shape, or a spiral shape.

  In the present embodiment, the ventral side edge 1as and the back side edge 1bs of the outer layer material 1 forming the outer shape of the diaper are joined via the peeling member 4 (see FIG. 2). Thus, a pair of left and right side seal portions 3 is configured. In the present embodiment, the peeling member 4 has a long sheet shape, and its longitudinal direction extends in the direction extending from the waist opening Wo of the diaper to the leg opening Lo, and the ventral side edge 1as and back of the outer layer material of the diaper. It is made to correspond substantially with the planar view shape of the side edge 1bs. Thereby, the ventral side part 1a and the dorsal side part 1b of the outer layer material are not directly joined, but are substantially only peeled off at the part of the ventral side edge part 1as and the dorsal side edge part 1bs via the peeling member 4. It is joined. Here, substantially means that there may be a portion where the abdomen portion 1a and the dorsal portion 1b are directly joined due to the protrusion of the adhesive or the like.

  In this embodiment, the upper end of the peeling member on the side of the waist opening Wo extends to the outside of the ventral side edge 1as and the back side edge 1bs of the outer layer material, and the extended part Is a knob 4a (see FIG. 1). This knob is folded back as shown when not in use and worn, and is fixed to the outer surface of the ventral side edge 1as of the outer layer material. This is preferable in that the knob 4a does not get in the way when worn. This sticking is considered to be weak and easy to peel off. After wearing, it can be peeled off to pull out the knob 4a, and then to the leg of the wearer to pull out the knob 4a as will be described later. it can. As described above, in order to easily fix the knob 4a to the outer surface of the ventral side edge 1as, for example, an adhesive such as hot melt or glue, or a peeling strength of 5N or less at the time of peeling is used. Bonding strength heat seal, high frequency seal, or the like can be used.

  The shape of the knob portion 4a may be any shape, but for example, a trimmed portion that is trimmed and rounded like the one shown in the figure is easy to pick, and it is gentle and preferable for viewing. Further, the direction in which the knob 4a is extended outward of the outer layer material is not particularly limited. For example, even if the knob 4a is extended toward the waist opening Wo as shown in the figure, the knob 4a is extended toward the leg opening Lo. May be. Furthermore, it is preferable to color the peeling member 4 in a color different from that of the outer layer material 1. For example, if the outer layer material 1 is white, it is possible to reliably identify the peeling member 4 without changing it from other members by using different colors such as red, blue, and green. It is also preferable in that it can be accented.

  In the diaper 10 of the first embodiment, as shown in the figure, the tear-off member 4 is folded along a direction in which the side seal portion extends from the waist opening Wo to the leg opening Lo, and the fold 4c is worn. It arrange | positions so that it may face inward of an article | item, ie, a wearer's skin H (refer FIG. 2). By doing in this way, also when the edge of the peeling member extended in a wearer's height direction touches a wearer's skin, since that part is the crease 4c used as a soft fold mountain, it is preferable. However, this invention is not limited to this embodiment, For example, it is good also as a single layer peeling member. In this case, it is preferable to use a soft material that is gentle to the skin if necessary.

In the first embodiment, the side sheet is formed by interposing a peeling member 4 in which the ventral side edge 1as and the back side edge 1bs of the outer layer material 1 are folded in two. Is not particularly limited. For example it includes adhering the member between S ₂ and member layer 4a and the member layer 4b of S ₁ and peel member between the outer member 1 and the peeling member 4 by a hot-melt adhesive. In this case, it is preferable to stronger than inter-member S ₁ adhesion member between S _2, reliably member between S ₂ is peeled off by When pulling the peeling member 4 in doing so, a better The peelability can be realized. Furthermore, if necessary, a point emboss that joins the side edges 1as, 1bs and the peeling member 4 intermittently in the longitudinal direction of the side seal portion 3 may be additionally attached to increase the strength when worn. . According to the present embodiment, since the structure of the side seal portion is not complicated, normal adhesives and bonding methods can be appropriately selected and adopted without introducing special manufacturing steps or complicated processing. Even in products with different needs and applications such as the age of the person and for adults, the design strength can be changed as appropriate to cope with it appropriately.

FIG. 3 is an enlarged perspective view showing the periphery of the left side seal portion 3r shown in FIG. 1, and schematically shows a state when the side seal is peeled off. One embodiment of peeling the side seal of the diaper of this embodiment will be described based on the same drawing. When the diaper 10 is worn, there is a knob 4a that is folded as described above and fixed to the outer surface of the ventral side edge 1as of the outer layer material. pull out towards the 4a to the head direction _{q 1} of the wearer. Next, while pulling in the direction q ₂ the wearer's legs while picking the knob portion 4a, drawn to divide the ventral side edge 1as the dorsal edge 1bs peeled. While the schematic diagram shown in FIG. 3 shows maintains peel previous shape of the dorsal side edge 1bs for understanding, separated toward the direction q ₃ gradually curled ventral side edge 1as similar to be going to, continue to separate while curling in a direction opposite to the dorsal immediate end 1bs also q _3. When the peeling member 4 is peeled off from the upper end 3i to the lower end 3f of the side seal portion by this peeling operation, the side seal portion has the ventral side edge portion 1as, the back side edge portion 1bs, and the peeling member. 4 is disassembled into four parts, and the diaper can be opened with the two-sided spread at that part. If such a work is performed on both the right side seal portion 3r and the left side seal portion 3s, the unfolded diaper fastening tape is peeled off and opened, and the legs are not passed through. The diaper can be easily removed from the wearer.

  When the diaper is removed, according to the pant-type diaper 10 of the embodiment of the present invention, even if one hand is occupied, the picking part 4a can be picked and pulled off with the finger of the other hand, and the peeling member 4 can be pulled out. In addition, the side seal portion 3 can be peeled off. In the first embodiment, as shown in FIG. 1, the side seal portions 3 (3r, 3s) according to the present invention are illustrated on the left and right sides, but the left and right sides are interposed, and only one side is peeled off. It is good also as a diaper which has the side seal part 3 with the said favorable peelability which interposed the member.

  FIG. 4 is a partially cutaway perspective view schematically showing the periphery of the side seal portion 3 of a pant-type diaper 20 according to another embodiment (Embodiment 2) of the present invention. In the second embodiment, the side seal portion 3 is the embodiment described above in that it is composed of the ventral side edge portion 1as, the back side edge portion 1bs of the outer layer material, and the peeling member 4 interposed therebetween. Same as 1. However, the first embodiment is different from the first embodiment in that there is no knob extending to the waist opening side and in that the peeling member is a single layer without being folded back. Moreover, in this Embodiment 2, the fracture | rupture guide line m in which many cut | interruptions continued was formed in the waist opening part side of the ventral | abdominal side edge part 1as. This cut can be formed by a normal method as, for example, a perforation. Further, a breakage guide line having the same shape is also formed on the back side edge 1bs at a position corresponding to this position. On the other hand, the tearing member 4 is not provided with a cut that forms a breakage guide line.

In this way, after wearing, picking knob position 3k surrounded by the break induction line m with a finger, by pulling laterally outwardly q ₅ of the diaper, peeling member 4 is sandwiched drawn . At this time, if the knob position 3k is the starting point, the outer ventral side edge portion 1as and the back side edge portion 1bs of the breaking guide line m are peeled off from the drawing member 4 and peeled over the entire length of the side seal portion 3. This part is torn. The stripped member 4 that has been peeled off is cut along the breaking guide line m, the member piece at the picking position 3k of the ventral side edge 1as, and the back side edge 1bs cut out in the same shape on the back side. Are left behind.
By setting it as such a form, even if there is no extended knob | pick part, a peeling member can be peeled off easily and it can be set as the side seal shape which is not different conventionally. The process of perforating the outer layer material is relatively easy and eliminates the steps of conveyance, folding, and fixing when there is an extended knob, and the load on the manufacturing facility can be reduced.

FIG. 5 is a partially cutaway perspective view schematically showing the periphery of the side seal portion 3 of a pant-type diaper 30 according to still another embodiment (Embodiment 3) of the present invention. Also in the third embodiment, the side seal portion is configured by the ventral side edge portion 1as, the back side side edge portion 1bs of the outer layer material, and the peeling member 4 interposed therebetween. However, unlike Embodiment 1, the single layer peeling member is applied and the knob | pick part 4a is not folded.
By setting it as such a form, a pick part becomes easier to identify than Embodiment 1, and the effort at the time of peeling work can be saved. The process of folding the knob and the process of fixing the knob can be eliminated, and the load on the manufacturing facility can be reduced.

  As the material of the outer layer material 1, a material generally used for this type of article can be preferably used. For example, non-woven fabrics, woven fabrics, knitted fabrics, resin films, etc. by various production methods such as air-through nonwoven fabric, heat roll nonwoven fabric, spunlace nonwoven fabric, spunbond nonwoven fabric, melt blown nonwoven fabric, etc. Can be used. The liquid-impermeable back sheet 2a disposed on the outer layer material side of the absorbent main body 2 may be water vapor-permeable as required. Specifically, in order to obtain sufficient water vapor permeability, a film made of a synthetic resin such as polyethylene in which fine powder made of a filler such as calcium carbonate is dispersed is stretched, and a porous film having fine holes is used. It is preferable. The porous sheet may be a single sheet or a combination of a plurality of sheets.

  As a material of the elastic member, a normal elastic material used for absorbent articles can be used. For example, as a material, synthetic rubber such as styrene-butadiene, butadiene, isoprene, neoprene, natural rubber, EVA, stretchable polyolefin Polyurethane and the like can be mentioned, and the form thereof is such that the cross-section is rectangular, square, circular, polygonal or other thread-like or string-like (flat rubber etc.), or multifilament type thread-like it can.

  As a material of the peeling member 4, a woven fabric, a nonwoven fabric, a porous film, or a laminate thereof can be used. Constituent fibers such as composite fibers (core-sheath type, side-by-side type, etc.) composed of polyesters such as polyethylene, polypropylene, polyethylene terephthalate, and polyamides such as nylon, regenerated cellulose fibers such as rayon and cupra, and cotton It is preferable to use natural fibers. Preferred nonwoven fabrics include spunbond nonwoven fabrics, meltblown nonwoven fabrics, spunbond / meltblown multilayer laminates, air-through nonwoven fabrics, heat bond nonwoven fabrics, and the like. Also, from the viewpoint of ensuring strength, for example, various known mechanical fasteners such as a knitted fabric in which a large number of fibers are knitted in a loop shape or an arch shape on a base sheet, as well as a predetermined nonwoven fabric or a nonwoven fabric having a fiber consistency. Other female materials can also be used.

  In each of the above embodiments, a pants-type diaper is shown as an example of the wearing article of the present invention, but a pants-type diaper cover that is used by disposing an absorbent main body on the skin surface side is also preferable. The absorbent main body is not particularly limited as long as it absorbs excreted urine and the like, and examples thereof include an absorbent pad such as a urine collecting pad. The absorbent pad includes, for example, a liquid-permeable surface sheet, a liquid-impermeable leak-proof sheet, and a liquid-holding absorber interposed between the two sheets, and is formed in a vertically long shape that is rectangular in plan view. Can be mentioned. Preferably, a pair of left and right solid guards are formed on both sides of the absorbent pad in the longitudinal direction, and each solid guard is for forming a solid guard having a solid guard elastic member on both sides of the absorbent pad in the longitudinal direction. It is preferable that the sheet material is disposed. The longitudinal direction of such an absorbent pad is passed from the wearer's back side to the stomach side through the crotch, and the liquid-permeable sheet side of the pad is disposed so as to contact the wearer's skin. It is preferable to wear the diaper cover so as to cover the absorbent pad.

  The pants-type wearing article of the present invention is a concept including general wearing articles having a pants-type structure, such as sanitary shorts, shorts-type napkins, and disposable underwear, in addition to the above-described pants-type diapers and diaper covers. This pants-type wearing article may be for infants or for adults.

Next, the preferable manufacturing method of the underpants type wearing article of this invention mentioned above is demonstrated.
FIG. 6 is a process explanatory view schematically showing one embodiment (embodiment 1) of the production method of the present invention in a perspective view. FIGS. 6 (a) shows the entire manufacturing process, the machining state of FIG. 6 (b) shows an enlarged side peeling member material production process, FIG. 6 (c) cutting step p ₁₁ Is shown enlarged. In this embodiment, first, an absorbent body 2b having a pulp pile fiber and a superabsorbent polymer is disposed on a top sheet material 2c ′ fed in the transport direction d. An absorbent main body 2 including the absorbent body 2b is formed by laying a backsheet material 2a 'on the opposite side through the absorbent body of the topsheet material 2c'. At this time, the absorbent body 2b is encapsulated by a top sheet material 2c ′ formed by a composite of a liquid-permeable surface sheet and a water-repellent three-dimensional cuff (not shown), and the liquid-impervious surface is provided on the surface on the outer layer material side. Alternatively, the back sheet material 2a 'may be bonded. The composite member thus produced is sealed and cut at a predetermined position (step p ₁ ) to form the absorbent main body 2. The absorbent main body 2 is rotated by 90 ° (step p ₂ ).

  Separately, the outer layer material web 12 forming the outer layer material 1 is fed in the transport direction d, and the absorbent main body 2 is placed thereon. This outer layer material web has a two-layer structure, and an elastic member 13 already forming a leg gather and an elastic member forming a waistline gather between the first outer layer material web on the wearer side and the second outer layer material web on the outermost side. A member 14 is incorporated. In FIG. 6, the elastic member 14 is shown only at the end of the outer layer web 12 in consideration of the fact that the figures are crowded, and is not shown as a broken line although it is sandwiched between two sheet materials including leg gathers. ing.

In the present embodiment, in the step of attaching the absorbent main body 2, the elastic members 11 that form waist gathers are disposed and bonded to both sides of the outer layer material web 12 in the CD direction almost simultaneously. In the present invention, the MD (Machine Direction) direction refers to a direction in which a sheet material such as a nonwoven fabric flows during production, and the CD (Cross Direction) direction refers to a direction orthogonal to the MD. At this time, the elastic member 13 that forms the leg gather and the elastic member 14 that forms the girth gather gather the elastic members 13 and 14 before the outer layer material web so that the contraction force is not generated in the portion where the absorbent main body 2 is disposed. The elastic member may be cut at a plurality of locations. In addition, regarding a position where a peeling member material 43 to be described later is incorporated, when the products are individually separated in the final process, the peeling member material 43 contracts due to the contraction force of the elastic member, and the finished feeling of the product decreases. From the viewpoint of preventing difficulty in peeling off, the elastic member 13 that forms leg gathers, the elastic member 14 that forms waistline gathers, and the elastic member 11 that forms waist gathers may be partially cut. It may be performed simultaneously with the step of cutting the elastic member at the portion where the absorbent main body 2 is disposed, or may be performed as a separate step, for example, before the step of applying hot melt (step p ₄ ).

Next, the side edges in the CD direction of the outer layer material webs are folded back so as to sandwich the elastic member 11 forming the waist gathers bonded as described above (step p ₃ ), and the skin side surface of the folded outer layer material webs, That is, the hot-melt adhesive 42 is applied to the planned location of the peeling member material 43 on the upper surface in FIG. 6 (step p ₄ ). This bonding may be replaced with another bonding method such as heat sealing, or a combination thereof.
Unlike what was illustrated above, in the hot melt application step (step p ₄ ), the hot melt adhesive may be applied only to one side of the outer layer material web 12 in the CD direction. The peeling member material 43 is disposed on the applied side and temporarily bonded in the same manner as described above. Thereafter, the right and left outer layer material webs 12 facing each other by heat sealing or ultrasonic sealing can be peeled off in the sealing step (step p ₁₀ ), and can be firmly bonded with the member material 43 sandwiched therebetween. By doing in this way, the man-hour of an adhesive material application process can be reduced and work efficiency etc. can be improved.

In the present embodiment, the peel member material 43 is prepared separately at this time (see FIG. 6B). Here, the peeling member material 41 is first fed, and two hot melt adhesives 42 are applied continuously in the feeding direction. Next, both the left and right sides of the peeling member material 41 are folded back (step p ₆₁ ) and cut into a predetermined length while trimming to form the peeling member material 43 (step p ₆₂ ). This is rotated 90 ° (step p ₆₃ ), and is arranged at the position of the outer layer material to which the hot-melt adhesive has been previously applied, intermittently in the outer layer material transport direction and on the left side as viewed in the transport direction. (process _p 7). As a result, the peeling member material 43 is temporarily bonded. In the present embodiment, at the same time or before and after that, at the center of the CD direction of the portion where the peeling member 43 is disposed, the outer layer material web 12 between the absorbent main bodies 23 is wound and leg holes are formed in the diaper. The opening portion Ls is formed (step p ₅ ).

In the present embodiment, a part (extension part) 43a of the peeling member material 43 extends beyond the edge t of the second outer layer material web 12b, and the extension part 43a is provided as the second part 43a. folding back side of the outer layer material web 12b (outer as diapers) processing is performed (step p _8). By doing in this way, when it becomes the diaper 40, when the peeling member raw material 43 is divided | segmented and becomes the peeling member 4 (refer FIG.6 (c)), the said extension part 43a is also divided | segmented simultaneously and a waist opening part. A portion extending to the side is a knob portion 4a folded. Here, extending beyond the edge of the outer layer material web is the same for the outer layer material web 12 as in the present embodiment, but the outer layer material web is not limited to extend beyond the outer edge t in the CD direction. It means to extend beyond the edge in the material web or in the area within it. That is, in this embodiment, it may be the first outer layer material web or the second outer layer material web, but it may be extended to the opening portion Ls forming the leg opening therebetween. By doing in this way, a knob | pick part can be provided in a leg opening part side.

Next, the two outer layer material webs 12 are raised from both the left and right sides so that the left and right faces each other (step p ₉ ). Specifically, the intermediate composite material in the middle of manufacture is folded in half with the center of the absorbent main body 2 as the crease, and is peeled off by the first outer layer material web 12a and the second outer layer material web 12b facing each other. 43 is sandwiched. Next, the outer layer material web 12 is pressed in order to strongly join the part where the peeling member material 43 is sandwiched (step p ₁₀ ). At this time, in this embodiment, since the hot melt adhesive is applied not to one side of both sides in the CD direction of the outer layer material web in the hot melt application step (step p ₄ ), Adhesion on both sides is realized.

As described above, the outer layer material web 12 is bonded at the position of the peeling member material 43 to a sufficient strength corresponding to the load applied at the time of wearing, and the composite member is cut together with the peeling member material in a direction perpendicular to the conveying direction. Then, it is divided into individual diapers 10 (step p ₁₁ ). That is, by this cutting, the outer layer material web 12 is divided so as to form an outer shape as a product, and the peeling member 43 is also divided into two to form the peeling member 4 (see FIG. 6 (c)). Diaper 10 is obtained. The pants-type disposable diaper 10 is transported (conveying direction d) and shipped with a predetermined packing if necessary.

  FIG. 7 is a process explanatory view schematically showing another embodiment (embodiment 2) of the production method of the present invention in a perspective view. In the second embodiment, the first outer layer material web 12a and the second outer layer material web 12b which are divided into two strips in the CD direction are used as the outer layer material web 12. Thereby, the underpants type disposable diaper 40 of the form which the absorptive main body 2 exposed to the crotch side of the outer layer material 1 is obtained. Except for this, the second embodiment is the same as the first embodiment shown in FIG. 6, and some of the common parts are omitted. Thus, even if it is a product in which the outer layer material web is divided into front and rear (back and back), a pant diaper having a side seal portion with good peelability by adding the same manufacturing process as in Embodiment 1 Can be provided.

DESCRIPTION OF SYMBOLS 1 Outer layer material 2 Absorbent main body 2a Back sheet 2b Absorber 2c Top sheet 3 Side seal part 4 Peeling member 10, 20, 30, 40 Pants type disposable diaper 11 Elastic member for waist gathers 12 Outer layer material web 13 Elastic for leg gathers Member 14 Gathering elastic member 41 Gathering member material anti-42 Hot melt adhesive 43 Peeling member material

Claims (6)

A pants-type wearing article having a waist opening and a pair of leg openings, and having a pair of left and right side seals extending from the waist opening to the leg openings,
At least one of the left and right side seal portion, Ri Na is bonded via the ventral and dorsal sides and is peeling member of the outer layer material at the sides of the pants-type wearing article, the waist opening or the in position corresponding leg opening, the pants-type wearing article that not extend outwardly of the peeling member is the outer layer material.   2. The pants-type wear according to claim 1, wherein the peeling member is folded with a fold in a direction in which the side seal portion extends, and the peeling member is arranged toward an inner side of the article to be worn. Goods. The pants-type wearing article according to claim 1 , wherein a portion of the peeling member that extends outward of the outer layer material is folded and fixed to the outer surface of the outer layer material.   The upper end portion on the waist opening side of the peeling member extends outward from the ventral side edge portion and the dorsal side edge portion of the outer layer material, and the extended portion serves as a knob portion. The part is folded back when not in use and worn, and is fixed to the outer surface of the ventral side edge of the outer layer material, and is moved to the leg side of the wearer so as to pull out the knob, and the side seal is peeled off. The underpants type wearing article according to claim 3 which can do.   The underpants type wearing article in any one of Claims 1-4 in which the said peeling member and the said outer layer material are joined by the hot-melt-adhesive in the said side seal part. It is a manufacturing method of the underpants type wearing article in any one of Claims 1-5,
A step of continuously conveying one or more outer layer material webs forming the outer layer material;
When the material constituting the peeling member is disposed on the outer layer material web, a part of the material constituting the peeling member is intermittently provided in the conveyance direction on either the left or right side of the conveyance direction of the outer layer material web. A process of extending beyond the edge of the outer layer material web ,
A step of sandwiching a material forming the peeling member by raising and facing the left and right of the outer layer material,
A step of joining the outer layer material web and the material constituting the peeling member simultaneously or sequentially with the sandwiching by the outer layer material web;
The manufacturing method of the underpants type wearing article including the process of cut | judging both the said outer-layer material web and the raw material which makes a peeling member in the direction orthogonal to a conveyance direction.

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