JP6763268B2 - Absorbent article and manufacturing method of absorbent article - Google Patents

Description

The present invention relates to an absorbent article and a method for producing an absorbent article, in which both ends in the waist direction of the front body and both ends in the waist direction of the rear body are joined by a tape member.

Among disposable diapers as absorbent articles, there are tape-type diapers for infants and adults. The tape-type diaper is provided with a front body, a back body, and a crotch part connecting the front body and the back body, and tape members arranged at both ends in the waist direction of the back body are fastened to the front body. As a result, the tape-type diaper is composed of a waist circumference portion that covers the waist circumference of the wearer and a pair of leg openings that surround the thigh portion of the wearer. When using a diaper, the folded tape-type diaper is unfolded, the back body is laid under the wearer's buttocks, and the front body is positioned on the wearer's abdomen through the wearer's inseam. After that, the tip of the tape member is fastened to the front body (see Patent Document 1).

Japanese Patent No. 4024782

When a tape-type diaper is worn by the wearer, the back body must be laid under the buttocks, and this wearing work includes the work of lifting the wearer's buttocks. Along with this, in order to reduce the burden on the worker, it is necessary to enable the wearer to perform the wearing work quickly.

In particular, the adult diaper is larger than the infant diaper, and the tape member of the adult diaper is longer than the tape member of the infant diaper. For this reason, the tape member of the adult diaper is bent more than the tape member of the infant diaper and is in a folded state. When the wearer wears the diaper, it is necessary to unfold the folded tape member, and the work time for the wearer to wear the absorbent article becomes longer accordingly.

An object of the present invention is to provide an absorbent article and a method for producing an absorbent article, which makes it possible to shorten the working time for the wearer to wear the article.

The absorbent article for solving the above problems includes a front body, a back body, and a crotch portion connecting the front body and the back body, and the waist circumference direction of the waist circumference constituent portion in the front body and the back body. A side flap in which both ends in the lateral direction are connected by a tape member, the both ends in the lateral direction of the waist circumference component are formed, and the tip end in the lateral direction is a free end. And the tape member extending from the free end portion toward the lateral side in the body of either the front body or the back body. The tape member includes an extension portion extending from the free end portion, a fastening portion located at the tip end portion of the extension portion and having one surface as a fastening surface, and the fastening surface facing the extension portion. A knob portion formed by being folded back and temporarily fixed to the extending portion is provided, and the extending portion is provided along a tape crease along a vertical direction orthogonal to the horizontal direction. It is folded back inward in the direction and temporarily fixed to the side flap. The side flaps are folded in a zigzag manner with a plurality of creases along the vertical direction so that the extending portion extends from the free end portion toward the inside in the lateral direction, and the knob portion is said. The side flaps are projected further inward in the lateral direction from the creases located inward in the lateral direction.

According to the above configuration, the side flaps are zigzag so that the pinch is separated from the surface of the absorbent article in contact with the skin. Therefore, the picking portion is in a state where it can be easily picked by a finger. This facilitates the work of unfolding the side flaps and the tape members, and the work time for causing the wearer to wear the absorbent article can be shortened accordingly.

In the absorbent article, the side flaps are made by the zigzag folds along the vertical direction and closest to the free end, and along the vertical direction from the free end rather than the first fold. It includes a distant second fold, a first fold located between the free end and the first fold, and a second fold located between the first fold and the second fold. It may be configured. Then, the second folded portion is folded inward in the lateral direction so as to overlap the surface of the absorbent article in contact with the skin along the second fold, and the first folded portion is the said. It may be configured to be folded outward in the lateral direction so as to overlap the second folded portion along the first fold. Then, the extending portion may extend from the free end portion toward the inside in the lateral direction, and the knob portion may protrude from the second fold toward the inside in the lateral direction.

According to the above configuration, the knob portion protrudes inward in the lateral direction from the second fold, and the first folded portion and the second folded portion of the folded side flap are present below the knob portion. , Keep away from the surface of the absorbent article in contact with the skin. Therefore, the picking portion is in a state where it can be easily picked by a finger.

In the absorbent article, the extending portion may be temporarily fixed to the side flap at the root along the free end portion.
According to the above configuration, it is possible to prevent the tape member from fluttering with respect to the side flaps in the production line, whereby the yield can be reduced and the production efficiency can be improved.

In the absorbent article, the second folded portion may be configured not to be temporarily fixed to the surface.
According to the above configuration, it is possible to reduce the force when deploying the side flaps.

In the absorbent article, the first folded portion may be configured not to be temporarily fixed to the second folded portion.
According to the above configuration, it is possible to reduce the force when deploying the side flaps.

In the absorbent article, the absorbent body includes an absorbent body extending in the vertical direction over the front body, the back body, and the crotch portion, and the absorbent body includes an absorber, and the second body. Both ends of the absorber in the lateral direction are arranged in the folded portion, and the side flaps may be configured to be folded back including the absorber at the second fold.
According to the above configuration, the absorbent article can be folded into a small size by folding the absorber in the lateral direction.

In the absorbent article, the knob may be configured to be distinguishable from other regions.
According to the above configuration, the pinched portion can be easily identified by the operator by making it identifiable by changing the color and texture from other regions.

A method for manufacturing an absorbent article for solving the above problems includes a front body, a back body, and a crotch portion connecting the front body and the back body, and a waist circumference component portion in the front body and the back body. This is a method for manufacturing an absorbent article in which both ends in the lateral direction, which is the girth direction of the article, are connected by a tape member. Here, the absorbent article comprises a side flap that constitutes both ends in the lateral direction of the waist circumference component portion and has a free end portion in the lateral direction, and a front body and a rear body. One of the bodies is provided with the tape member extending outward from the free end in the lateral direction. The tape member includes an extending portion extending from the free end portion and a fastening portion located at the tip end portion of the extending portion and having one surface as a fastening surface. Then, in the manufacturing method, a transport sheet in which the base end of the tape member is fixed is conveyed to a portion constituting the side flap, and the tape member is fastened so that the fastening surface faces the extending portion. The portion is folded back to the extending portion and temporarily fixed to form a knob portion, and the extending portion is folded back inward in the lateral direction to form the side flap. Is temporarily fixed. In the manufacturing method, a portion constituting the side flap is further folded in a zigzag manner, the extending portion extends from the free end portion toward the inside in the lateral direction, and the tip portion of the knob portion is formed on the transport sheet. The transport sheet is cut into one absorbent article by projecting further inward in the lateral direction from the crease located inward in the lateral direction.

According to the above configuration, in a series of steps, the portion constituting the side flap can be folded in a zigzag manner, and the tip portion of the knob portion can be projected inward in the lateral direction from the crease located inward in the lateral direction of the transport sheet. .. As a result, the production efficiency can be improved.

According to the present invention, it has become possible to provide an absorbent article that can be quickly worn.

A perspective view of a tape-type disposable diaper embodying the absorbent article of the present invention. The plan view which shows the unfolded state of a tape-type disposable diaper. An exploded perspective view of a main part showing the relationship between the side flap and the tape member. An enlarged perspective view of the tip of the tape member. A cross-sectional view of a main part showing a state in which a portion extending from a side flap to a tape member is unfolded. A cross-sectional view of a main part showing a state in which the base of the extension portion is folded back at the free end portion of the side flap. A cross-sectional view of a main part showing a state in which the side flaps are folded back at the first fold and the second fold. A cross-sectional view of a main part showing a state in which the side flaps are folded back at the first and second folds and folded by a zigzag fold. A plan view of a diaper in which the front body and the back body are unfolded, and the side flaps and tape members are folded, as viewed from the side of the top sheet. A perspective view showing a state in which a diaper is folded in three. (A) is a schematic view showing a transport sheet in which the extending portion of the tape member is folded inward in the lateral direction and transported, and (b) is a schematic diagram showing a transport sheet in which the side flaps are folded. It is a figure which shows the deformation example of a tape member, (a) is the main part plan view which shows the modification which provided two extension part and fastening part with respect to one fixing part, (b) is one A plan view of a main part showing a modified example in which two fastening parts are provided for a fixed part and an extended part, (c) shows a modified example in which the extended part and the fastening part are divided into a plurality of parts at a perforation. Part plan view.

[Explanation of tape-type disposable diapers]
A tape-type disposable diaper according to an embodiment embodying the absorbent article of the present invention will be described with reference to FIGS. 1 to 12.
As shown in FIG. 1, the tape-type disposable diaper 10 (hereinafter, simply referred to as “diaper 10”) is an adult diaper as an example. The diaper 10 includes a front body 10F having a shape that follows the shape of the abdomen of the human body, a back body 10R that has a shape that follows the shape of the back of the human body, and a crotch portion 10C that connects the front body 10F and the back body 10R. There is.

On the front body 10F, the side opposite to the crotch portion 10C constitutes a waist circumference portion 10W that surrounds the waist circumference portion of the human body, and a waist circumference opening 10A is provided at the upper end. Further, the left and right ends of the front body 10F, the left and right ends of the rear body 10R, and the left and right ends of the crotch portion 10C form a pair of left and right leg-circumferential openings 10L having a shape surrounding the thighs of the human body. are doing. The portion surrounding the ventral waist circumference of the front body 10F is the front waist circumference component 12F constituting the waist circumference portion 10W, and the portion surrounding the back waist circumference of the back body 10R is the rear waist circumference component 12R constituting the waist circumference portion 10W. is there. Side flaps 11 are provided at both ends of the front waist circumference component 12F and the rear waist circumference component 12R in the lateral direction, and the rear body 10R and the front body 10F are connected to the side flaps 11 of the rear body 10R. The tape member 20 is provided. The diaper 10 is for adults, and the wearer's waist circumference is wider than that of an infant. The side flaps 11 are not only for wearers with standard sizes of waist circumference and leg circumference, but also for wearers with waist circumference larger than standard, wearers with waist circumference smaller than standard, and leg circumference as standard. It is an adjustment allowance to accommodate larger wearers and wearers with smaller leg circumferences.

FIG. 2 is a plan view showing the unfolded state of the tape-type disposable diaper. In the diaper 10, the absorbent body 50 includes a liquid-impermeable back sheet 13, an absorber 14, and a liquid-permeable top sheet 15. The structures of the back sheet 13, the absorber 14 and the top sheet 15 are treated as a strip-shaped absorbent body 50 straddling the front body 10F, the crotch part 10C, and the back body 10R, and the cover sheet 16 and the side sheet 17 are further provided. Be joined. In the diaper 10, the top sheet 15 is arranged inside in contact with the wearer's skin, the back sheet 13 is arranged outside, and the back sheet 13, the absorber 14, and the top sheet 15 are overlapped in this order from the outside. Further, on the outside of the back sheet 13, a cover sheet 16 made of a non-woven fabric is arranged in order to improve the feeling of touch.

The material forming the absorber 14 is, for example, an absorbent material such as flap pulp, a superabsorbent polymer (SAP), or a hydrophilic sheet. Then, as an example, the absorber 14 is wrapped with a core wrap composed of a hydrophilic sheet and is arranged between the back sheet 13 and the top sheet 15. The portion of the absorber 14 corresponding to the crotch portion 10C is provided with notches 14A on both sides to allow the legs to escape. Therefore, in the absorber 14, the portion corresponding to the front waist circumference component 12F and the rear waist circumference component 12R is laterally wider than the portion corresponding to the crotch lower portion 10C, and the front waist circumference component 12F and the rear waist circumference component 12R The part corresponding to is a part of the side flap 11. Further, the portion of the front body 10F of the cover sheet 16 is a fastened region 18 to which the fastening portion of the tape member 20 is fastened (see FIG. 1). The fastened region 18 is made of a non-woven fabric, a woven fabric, a loop material, or the like that can be engaged with the hook.

Three-dimensional gathers are arranged on both ends of the absorbent body 50 along the front-rear direction. The three-dimensional gather includes side sheets 17 arranged at both ends along the front-rear direction on the top sheet 15, and elastic members 14E arranged along the vertical direction of the side sheets 17. In the three-dimensional gather, when the elastic member 14E contracts, the side sheet 17 rises in the direction of contact with the wearer's skin and is located around the leg circumference opening 10L.

The side flap 11 is configured by superimposing the cover sheet 16 and the side sheet 17 located at the waist circumference portion. The side flap 11 portion also includes a part of the back sheet 13, a part of the top sheet 15, and a part of both ends of the absorber 14 in the lateral direction. An elastic member 14L is also arranged in a portion constituting the pair of left and right leg-circumferential openings 10L.

The back sheet 13 is formed slightly larger than the absorber 14. The back sheet 13 is made of, for example, a film made of polyethylene resin having liquid impermeable property. The back sheet 13 is formed with a large number of micropores in order to ensure air permeability.

The top sheet 15 is a sheet that comes into contact with the skin and is made of a material that is hypoallergenic to the skin. For example, the top sheet 15 is made of a woven fabric, a non-woven fabric, a porous film, or the like. Further, for the top sheet 15, for example, it is preferable to use a non-woven fabric composed of fibers of a thermoplastic resin such as polypropylene, polyethylene, polyester, and nylon which has been subjected to a hydrophilic treatment. Further, the cover sheet 16 and the side sheet 17 are also made of the same material as the top sheet 15, for example.

As shown in FIG. 3, the side flaps 11 located at both left and right ends of the rear body 10R are configured with free end portions 11A extending linearly in the vertical direction at the tip portions in the lateral direction (see FIG. 4). .. A tape member 20 extends outward from each free end portion 11A. The tape member 20 includes a fixing portion 21 formed at a base end portion, an extending portion 22 continuously provided on the fixing portion 21, and a fastening portion 23 provided at the tip end portion of the extending portion 22. ..

The fixing portion 21 is fixed in a state of being sandwiched between the inner surface of the cover sheet 16 constituting the side flap 11 and the inner surface of the side sheet 17 by an adhesive means such as a hot melt adhesive.

The extending portion 22 is a portion between the fixing portion 21 and the fastening portion 23, and is a portion extending laterally from the free end portion 11A. Here, the width of the extending portion 22 is set to be the same as the width of the fixed portion 21.

As shown in FIG. 4, the fastening portion 23 is provided at the tip end portion of the extending portion 22, and is formed narrower than the extending portion 22 here. One surface of the fastening portion 23 is a fastening surface 23A provided with a large number of hooks. In the fastening surface 23A, the boundary between the tip portion and the extending portion 22 in the length direction is a non-fastening region 23B in which no hook is provided, and a large number of hooks are provided between the non-fastening regions 23B. It is the fastening area 23C. In particular, the non-fastening region 23B located on the tip end side of the fastening surface 23A is non-adhesive to the extending portion 22 and forms a free end portion, so that the portion can be easily picked. Further, in the extending portion 22 and the fastening portion 23, the other surface (outer surface) is configured as a tape-shaped bonded region 23D to which the fastening region 23C can be fastened. The fastened region 23D is also made of a non-woven fabric, a woven fabric, a loop material, or the like that can be engaged with the hook.

As shown in FIG. 3, the boundary portion between the extending portion 22 and the fastening portion 23 is a fastening fold 24 that bends the fastening portion 23 so as to overlap the extending portion 22. The fastening portion 23 is bent inward in the lateral direction along the fastening crease 24 so that the fastening surface 23A faces the extending portion 22, and can be peeled off by engaging the hook with the extending portion 22. Temporarily fixed to. As a result, the fastening portion 23 is temporarily fixed to the extending portion 22 in a bent state, and the knob portion 25 is formed in the bent portion. An adhesive may be further applied to the temporary fixing here. Further, when the hook is made of a material that cannot be fastened, the extending portion 22 is temporarily fixed by using an adhesive or the like. The length of the extending portion 22 is longer than the length of the fastening portion 23, and when the fastening portion 23 is folded back to the extending portion 22 and temporarily fixed, the tip portion of the fastening portion 23 becomes the free end portion 11A of the side flap 11. It is set so that they do not overlap.

Next, a method for manufacturing the diaper 10 configured as described above will be described. FIG. 5 shows a portion extending from the side flap 11 to the tape member 20. The tape member 20 configured as described above is supplied to the production line in a state where the fastening portion 23 is folded back and temporarily fixed to the extending portion 22. Then, the tape member 20 is fixed to the side flap 11 by an adhesive means such as an adhesive by sandwiching the fixing portion 21 between the cover sheet 16 and the side sheet 17.

FIG. 6 shows a state in which the root of the extending portion 22 is folded back at the portion of the free end portion 11A of the side flap 11. That is, the tape member 20 is folded back so that the base of the extending portion 22 is along the free end portion 11A of the side flap 11. That is, the extending portion 22 is folded back inward in the lateral direction with a tape crease 26 at the boundary portion between the fixing portion 21 and the extending portion 22. The tape crease 26 is attached to the base of the extension portion 22 by using the free end portion 11A as a mark or the like. As a result, the fastening portion 23, which is the portion to be the grip portion 25 and is folded back with respect to the extending portion 22, is overlapped on the inner surface (the surface on the top sheet 15 and the side sheet 17 side) of the side flap 11. The knob portion 25 can be made conspicuous to the operator by being colored so as to have a color different from other regions such as the tape member 20, the cover sheet 16, the side sheet 17, and the top sheet 15. .. An adhesive 31 such as a hot melt adhesive is applied to the root of the extending portion 22 along the free end portion 11A, and is temporarily fixed to the first folded portion 29 near the free end portion 11A so as to be peelable. As a result, the extending portion 22 continues to be adhered to the side flap 11 until the user deploys the tape member 20 to the side flap 11.

By the way, the side flap 11 is folded with the first fold 27 and the second fold 28 along the vertical direction orthogonal to the horizontal direction from the side close to the free end portion 11A. The area between the free end portion 11A and the first fold 27 is the first folding portion 29, and the position along the free end portion 11A of the first folding portion 29 is the position where the extending portion 22 is temporarily fixed. The second fold portion 30 is formed between the first fold 27 and the second fold 28 (see FIG. 5). FIG. 7 shows a state in which the side flap 11 is folded back at the first fold 27 and the second fold 28 and folded into an inverted Z shape.

The second folding portion 30 has a second fold 28 separated from the first fold 27 from the free end portion 11A, and is laterally inward so as to overlap the top sheet 15 or the side sheet 17 which is the surface in contact with the skin. It is turned back toward you. Further, the first folding portion 29 is folded outward in the lateral direction so as to overlap the second folding portion 30 with the first folding portion 27. The second folding portion 30 is not temporarily fixed to the top sheet 15 or the side sheet 17 adjacent to the lower side, and the first folding portion 29 is also temporarily fixed to the second folding portion 30 adjacent to the lower side. It is not stopped so that it does not become a load when deploying the side flap 11. As an example, in FIG. 7, the position of the second fold 28 is set in the side flap 11 in the region where the absorber 14 exists. As an example, the position of the second fold 28 provided on the side flaps 11 on both sides is substantially the same as the position of the line extending the deepest portion of the notch 14A in the absorber 14 in the vertical direction (see 28'in FIG. 5). ).

FIG. 8 shows a state in which the side flap 11 is folded back at the first fold 27 and the second fold 28 and folded in an inverted Z shape. In the state where the side flap 11 is completely folded by the above-mentioned zigzag folding, the extending portion 22 extends laterally inward from the free end portion 11A, and the tip portion of the knob portion 25 is positioned laterally inward. It extends inward in the lateral direction from the first fold 27. As a result, the picking portion 25 is slightly separated from the side sheet 17 due to the presence of the first folding portion 29 and the second folding portion 30 of the side flap 11 folded under the picking portion 25, so that the grip portion 25 can be easily picked by fingers. Become.
The side flaps 11 arranged on the opposite sides in the lateral direction are folded into a Z shape.

FIG. 9 shows a diaper 10 in which the side flap 11 and the tape member 20 are folded, and the front body 10F and the back body 10R are deployed with respect to the crotch portion 10C, as viewed from the side of the top sheet 15. It is a plan view. The diaper 10 is further folded and stacked in a flexible storage bag. In this case, the boundary between the front body 10F and the crotch part 10C is set as the front fold 32, and the boundary between the crotch part 10C and the back body 10R is set as the back fold 33. FIG. 10 shows a state in which the diaper 10 is folded in three. The diaper 10 may be folded in half or in four in the vertical direction.

When the diaper 10 is used, the front body 10F and the back body 10R are opened from the tri-folded state shown in FIG. 10 to the crotch portion 10C shown in FIG. Then, the buttocks of the wearer are lifted, the top sheet 15 is on the upper side, the back body 10R is laid on the lower side of the buttocks, the inseam 10C is applied to the inseam of the wearer, and the front body is positioned on the abdomen of the wearer. After that, the tape member 20 is developed, and the fastening region 23C of the fastening surface 23A is fastened to the fastened region 18 of the front body 10F and the tape-shaped fastening region 23D, and the front body 10F and the back body 10R are connected.

To deploy the side flap 11 and the tape member 20, the grip 25 is picked with a finger or the like and pulled outward in the lateral direction. Then, the side flap 11 is developed so that the second folded portion 30 is separated from the top sheet 15 or the side sheet 17, and the first folded portion 29 is separated from the second folded portion 30. Further, in the tape member 20, the grip portion 25 is separated from the first folding portion 29, and the grip portion 25 is in a state of facing outward in the lateral direction. Here, since the picking portion 25 is colored in a color different from other regions such as the tape member 20, the cover sheet 16, the side sheet 17, and the top sheet 15, it can be easily identified when picking with a finger. During this time, the fastening surface 23A of the fastening portion 23 is temporarily fixed to the extending portion 22, so that the fastening surface 23A including the fastening region 23C, which is a rough surface with a large number of hooks, does not come into contact with the wearer's skin. Absent. Finally, the fastening portion 23 is peeled off from the extending portion 22, and the fastening region 23C is fastened to the fastened region 18 formed on the exterior surface composed of the cover sheet 16 on the front body 10F. Two tape members 20 are provided side by side in the vertical direction on side flaps 11 located at both left and right ends in the horizontal direction. The fastening surface 23A of one tape member 20 can be fastened not only to the fastened region 18 of the front body 10F but also to the tape-shaped fastened region 23D provided in the fastening portion 23 of the other tape member 20. (See FIG. 1).

As described above, according to the diaper 10, the actions and effects listed below can be obtained.
(1) When the side flap 11 is completely folded, the extending portion 22 extends inward in the lateral direction from the free end portion 11A, and the tip portion of the knob portion 25 is located inward in the lateral direction. It extends inward in the lateral direction from the first fold 27. As a result, the picking portion 25 is separated from the side sheet 17 by the presence of the first folding portion 29 and the second folding portion 30 of the side flap 11 folded under the picking portion 25, and is easily picked by fingers, and the side The work time for deploying the flap 11 and the tape member 20 can be shortened.

(2) In the diaper 10, the side flap 11 and the tape member 20 can be unfolded only by pulling the knob portion 25 laterally outward, and the man-hours for unfolding the side flap 11 and the tape member 20 can be reduced. it can. The knob portion 25 can be made conspicuous when viewed from the operator by being colored so as to have a color different from that of other regions.

(3) While the side flap 11 and the tape member 20 are deployed, the fastening surface 23A of the fastening portion 23 is temporarily fixed to the extending portion 22, so that the fastening surface 23A is prevented from touching the wearer's skin. be able to.

(4) The root of the extending portion 22 along the free end portion 11A is temporarily fixed to the free end portion 11A by applying a hot melt adhesive or the like. Therefore, when the side flap 11 is folded during the manufacturing process, it is possible to prevent the tape member 20 from flapping with respect to the side flap 11, thereby improving the production efficiency.

(5) The second folding portion 30 is not temporarily fixed to the top sheet 15 or the side sheet 17 adjacent to the lower side, and the first folding portion 29 is also attached to the second folding portion 30 adjacent to the lower side. On the other hand, it is not temporarily fixed. Therefore, the force required to deploy the side flap 11 is small.
(6) By folding the diaper 10 in the lateral direction along the second fold 28 in which the absorber 14 is interposed, the absorbent article can be folded into small pieces.

[Explanation of manufacturing method for tape-type disposable diapers]
Next, the method for manufacturing the diaper 10 as described above will be described.
As shown in FIG. 11A, the transport sheet 40 is transported to the production line in the direction of arrow D. The transport sheet 40 is a structure in which the absorbent body 50 in which the absorber 14 is sandwiched between the back sheet 13 and the top sheet 15 is sandwiched between the continuous body of the cover sheet 16 and the continuous body of the side sheet 17. .. The absorbent main body 50 is arranged between the continuous body of the cover sheet 16 and the continuous body of the side sheet 17 with the longitudinal direction in the direction of arrow D, which is the transport direction. Further, the back sheet 13 is located on the continuous body side of the cover sheet 16, and the continuous body of the cover sheet 16 is arranged so as to cover the entire back sheet 13. The top sheet 15 is positioned so as to be in contact with the side sheet 17, and the continuum of the side sheets 17 is arranged at both side edges along the longitudinal direction of the absorbent body 50. The side edge portions parallel to the transport direction of the continuous body of the cover sheet 16 and the continuous body of the side sheet 17 form the side flap portion 41 constituting the side flap 11. In the side flap portion 41, the continuous body of the cover sheet 16 and the continuous body of the side sheet 17 are adhered by an adhesive means such as a hot melt adhesive with the tape member 20 arranged between them. Specifically, in the tape member 20, the fixing portion 21 is sandwiched and fixed between the continuous body of the cover sheet 16 and the continuous body of the side sheet 17 in a state where the fastening portion 23 is folded back to the extending portion 22 and temporarily fixed. (See FIG. 5).

The conveying sheet 40 configured as described above is conveyed in the direction of arrow D, and the extending portion 22 of the tape member 20 is laterally provided with a tape crease 26 at the boundary portion between the fixing portion 21 and the extending portion 22. It folds back inward in the direction (see FIG. 6). Then, the root of the extending portion 22 along the free end portion 11A is temporarily fixed to the free end portion 11A by applying a hot melt adhesive or the like. Then, in the transport sheet 40, the side flap portion 41 and the tape member 20 are folded.

In a manufacturing apparatus for transporting such a transport sheet 40, the side flap portion 41 including one side edge portion of the transport sheet 40 is folded into a Z shape, and the side flap portion 41 including the other side edge portion is inverted Z-shaped. It has a folding mechanism that folds into a shape. As shown in FIG. 11B, the folding mechanism includes a roller 42 that raises the side flap portion 41 of the transport sheet 40, and a guide plate 43 that guides the side flap portion 41 to be folded. The guide plate 43 is located on the downstream side of the roller 42 and is arranged so as to extend in a direction parallel to the transport direction corresponding to each side flap portion 41. Then, the guide plate 43 abuts in the middle of the raised side flap portion 41 in the height direction, and provides a crease corresponding to the above-mentioned first crease 27. As a result, the raised side flap portion 41 is folded in a zigzag manner to form a Z-shape or an inverted Z-shape.

After that, the raised side flap portion 41 is sandwiched by a pair of rollers, so that folds corresponding to the first fold 27 and the second fold 28 are provided. As a result, the extending portion 22 extends inward in the lateral direction from the free end portion 11A, and the tip portion of the knob portion 25 is further laterally inward from the crease located inside the lateral flap portion 41 in the lateral direction. It can be projected toward. After that, the transport sheet 40 is cut along the cutting line 44 by a cutting means such as a cutter, and is cut into one diaper. Then, the diaper 10 is made into a tri-folded state in which the front body 10F and the back body 10R are overlapped with respect to the crotch portion 10C, and then the diaper 10 is laminated and stored in a flexible storage bag.

As described above, according to the method for producing the diaper 10, the actions and effects listed below can be obtained.
(7) By arranging the rollers 42 on the traveling path of the conveying sheet 40, the central portion in the lateral direction orthogonal to the traveling direction of the conveying sheet 40 is pressed, and the side flap portions 41 on both sides thereof are raised and continuously. Then, the guide plate 43 can provide a crease. As a result, in a series of steps, the side flap portion can be folded in a zigzag manner, and the tip portion of the knob portion 25 can be projected further laterally inward from the crease located inside the side flap portion 41 in the lateral direction. Through such a manufacturing process, production efficiency can be improved.

The above embodiment can be modified as appropriate and implemented as follows.
In FIG. 7, the position of the second fold 28 is set in the side flap 11 in the region where the absorber 14 exists, but the position along the side edge of the absorber 14, that is, the absorber 14 is not folded. It may be set to a position where it can be completed (position 28'in FIG. 5).

If the second folding portion 30 is to prevent the top sheet 15 or the side sheet 17 adjacent to the lower side from being displaced, the second folding portion 30 is temporarily attached to the top sheet 15 or the side sheet 17 by an adhesive such as a hot melt adhesive. You may stop it.
-The first folding portion 29 may be temporarily fixed to the second folding portion 30 as long as it prevents the second folding portion 30 adjacent to the lower side from being displaced.

If a slight deviation of the folding position of the tape member 20 with respect to the side flap 11 does not matter, the root of the extension portion 22 along the free end portion 11A is with respect to the free end portion 11A of the side flap 11. It does not have to be temporarily fixed. Further, the extending portion 22 may be temporarily fixed by adhering the entire extending portion 22 to the side flap 11.

The number of zigzag folds in the side flap 11 is such that the extending portion 22 extends from the free end portion 11A toward the inside in the lateral direction, and the tip portion of the knob portion 25 extends inside in the lateral direction of the side flap 11. The number of times the crease 27 located in the first fold 27 can be further inwardly projected is not particularly limited.

-The tape member 20 may be fixed to the side flap 11 of the front body 10F instead of the side flap 11 of the back body 10R. In this case, the fastened region 18 to which the fastening surface 23A is fastened is provided on the cover sheet 16 of the back body 10R.

-The fixing portion 21 of the tape member 20 may be fixed to the outer exterior surface of the cover sheet 16 by an adhesive means such as an adhesive instead of being sandwiched between the cover sheet 16 and the side sheet 17, or the side sheet 17 may be fixed. It may be fixed to the surface on the same side as the top sheet 15 by an adhesive means such as an adhesive.

-The side flap 11 is not limited to a configuration in which the cover sheet 16 and the side sheet 17 are overlapped. For example, an outer body having a strip-shaped absorber 14 in the vertical direction is adhered to both ends in the vertical direction, and one outer body constitutes a front body and the other outer body forms an outer body. The back body may be constructed. In this case, both ends of the exterior body in the lateral direction serve as side flaps, and the fixing portions 21 of the tape member 20 are sandwiched and fixed between the two sheets constituting the exterior body.

The configuration of the tape member 20 is not limited to the above example. For example, as shown in FIG. 12A, the fixing portion 21 may be one, and a plurality of fixing portions, for example, two extending portions 22 and a fastening portion 23 may be provided from one fixed portion. Further, as shown in FIG. 12B, the fixing portion 21 and the extending portion 22 may be combined into one, and a plurality of, for example, two fastening portions 23 may be provided from the extending portion 22.

Further, as shown in FIG. 12 (c), a plurality of portions, for example, two extending portions 22 and a fastening portion 23 are provided so as to project from the free end portion 11A of the side flap 11, and the free end portion 11A is provided. A perforation 45 extending in a direction perpendicular to the perforation 45 may be provided, and the extending portion 22 and the fastening portion 23 may be divided into two along the perforation 45 at the time of use. For example, when the three extending portions 22 and the fastening portion 23 are provided, the two perforations 45 extending in the direction perpendicular to the free end portion 11A are provided.

The tape crease 26 located at the base of the free end 11A and the extension 22 does not have to be along the free end 11A. For example, the tape crease 26 may be separated from the free end 11A.

-The fastening region 23C may be an adhesive portion provided with an adhesive tape, instead of providing a large number of mechanical hooks. In this case, the tape-shaped bonded region 23D and the fastened region 18 are formed of a material to which the adhesive tape can be attached.

The knob portion 25 may have the same color as other areas such as the tape member 20, the cover sheet 16, the side sheet 17, and the top sheet 15, but may be different in color so as to be conspicuous to the operator. it can.

Further, the knob portion 25 is not limited to the case where the entire portion is colored in a color different from other regions such as the tape member 20, the cover sheet 16, the side sheet 17, and the top sheet 15, and in the state of FIG. The portion extending inward in the lateral direction from the crease 27 may be colored in a color different from other regions. According to this, the grip portion 25 can be easily identified when the side flap 11 is pinched with fingers when the side flap 11 is deployed.

Further, the knob portion 25 can be identified not only when the tape member 20, the cover sheet 16, the side sheet 17, the top sheet 15 and the like are colored in different colors, but also by changing the touch. It may be configured.
-The diaper 10 may be a diaper for infants. It may also be a diaper for pets.

10 ... Tape-type disposable diaper, 10A ... Girth opening, 10C ... Inseam, 10F ... Front body, 10L ... Leg opening, 10R ... Back body, 10W ... Girth, 11 ... Side flap, 11A ... Free end , 12F ... Front waistline component, 12R ... Rear waistline component, 13 ... Backsheet, 14 ... Absorber, 14A ... Notch, 14E ... Elastic member, 14L ... Elastic member, 15 ... Top sheet, 16 ... Cover sheet, 17 ... Side sheet, 18 ... Fastened area, 20 ... Tape member, 21 ... Fixed part, 22 ... Extension part, 23 ... Fastening part, 23A ... Fastening surface, 23B ... Non-fastening area, 23C ... Fastening area, 23D ... Tape-shaped area to be fastened, 24 ... Fastening fold, 25 ... Knob, 26 ... Tape crease, 27 ... 1st fold, 28 ... 2nd fold, 29 ... 1st fold, 30 ... 2nd fold, 31 ... Adhesive, 32 ... Front fold, 33 ... Rear fold, 40 ... Conveying sheet, 41 ... Side flap part, 42 ... Roller, 43 ... Guide plate, 44 ... Cutting line, 45 ... Perforation, 50 ... Absorbent Body.

Claims (8)

A front body, a back body, and a crotch portion connecting the front body and the back body are provided, and both ends in the lateral direction, which are the waist directions of the waist circumference components of the front body and the back body, are connected by a tape member. Absorbent article to be
The free ends of the side flaps that form both ends in the lateral direction of the girth component and have the tip in the lateral direction as free ends, and the body of either the front body or the back body. It is provided with the tape member extending outward from the end in the lateral direction.
The tape member includes an extending portion extending from the free end portion, a fastening portion located at the tip end portion of the extending portion and having one surface as a fastening surface, and the fastening surface facing the extending portion. It is provided with a knob portion which is folded back and temporarily fixed to the extension portion as described above.
The extending portion is folded back inward in the horizontal direction along a tape crease along the vertical direction orthogonal to the horizontal direction and temporarily fixed to the side flap.
The side flap is folded in a zigzag manner with a plurality of creases along the vertical direction, and the overlapping portions are not temporarily fixed by the zigzag fold, and the extending portion is directed from the free end portion to the inward in the lateral direction. An absorbent article that extends and projects the knob portion further inward in the lateral direction from a crease located inward in the lateral direction of the side flap. The side flaps are made by the zigzag fold.
The first crease along the vertical direction and closest to the free end,
A second crease along the vertical direction that is farther from the free end than the first crease,
A first folding portion located between the free end portion and the first folding portion,
It is provided with a second folding portion located between the first fold and the second fold.
The second folded portion is folded inward in the lateral direction so as to overlap the surface of the absorbent article in contact with the skin along the second fold.
The first folded portion is folded outward in the lateral direction so as to overlap the second folded portion along the first fold.
The absorption according to claim 1, wherein the extending portion extends inward in the lateral direction from the free end portion, and the knob portion protrudes inward in the lateral direction from the first fold. Sex goods. The absorbent article according to claim 2, wherein the extending portion is temporarily fixed to the side flap at a root along the free end portion. The absorbent article according to claim 3, wherein the second folded portion is not temporarily fixed to the surface. The absorbent article according to claim 3 or 4, wherein the first folding portion is not temporarily fixed to the second folding portion. An absorbent body extending in the vertical direction over the front body, the back body, and the crotch portion.
The absorbent body includes an absorber and
Both ends of the absorber in the lateral direction are arranged in the second folded portion.
The absorbent article according to any one of claims 2 to 5, wherein the side flap is folded back including the absorber at the second fold. The absorbent article according to any one of claims 1 to 6, wherein the knob is configured to be distinguishable from other regions. The front body, the back body, and the crotch portion connecting the front body and the back body are provided, and both ends in the lateral direction, which are the waist directions of the waist circumference components of the front body and the back body, are connected by a tape member. It is a method of manufacturing an absorbent article to be produced.
The absorbent article includes side flaps that form both ends in the lateral direction of the girth component and have the tip in the lateral direction as a free end.
The body of either the front body or the rear body is provided with the tape member extending from the free end portion toward the lateral side.
The tape member includes an extending portion extending from the free end portion and a fastening portion located at the tip end portion of the extending portion and having one surface as a fastening surface.
The manufacturing method is
A transport sheet in which the base end of the tape member is fixed is conveyed to a portion constituting the side flap, and the tape member has the fastening portion on the extending portion so that the fastening surface faces the extending portion. On the other hand, it is folded back and temporarily fixed, and it is fixed with the knob part configured.
The extending portion is folded back inward in the lateral direction and temporarily fixed to a portion constituting the side flap.
In the manufacturing method, the portions constituting the side flaps are further folded in a zigzag manner, and the overlapping portions due to the zigzag folds are not temporarily fixed.
The extending portion extends from the free end portion toward the inside in the lateral direction, and the tip end portion of the knob portion protrudes further toward the inside in the lateral direction from the crease located inside the lateral direction of the transport sheet. Let me
A method for producing an absorbent article, which cuts the transport sheet into one absorbent article.