JP2021045397A - Disposable diaper - Google Patents

Abstract

To provide a disposable diaper which allows a user to easily adjust a fastening position of a fastening tape and to properly fasten the fastening tape at the time of wearing.SOLUTION: A disposable diaper in which fastening tapes 21 are attached to both sides in a width direction x of a diaper body 2 is such that: the fastening tape 21 has a fixing part 27 formed at one end of a tape base material 22 and attached to the diaper body 2, a knob part 29 formed at the other end of the tape base material 22, and an intermediate part 28 positioned between the fixing part 27 and the knob part 29; the knob part 29 is provided with a first fastener 25, and a second fastener 26 disposed at the diaper body 2 side from the first fastener 25; and an opening 31 is formed between the first fastener 25 and the second fastener 26.SELECTED DRAWING: Figure 3

Description

The present invention relates to a tape-type disposable diaper.

Conventionally, disposable diapers equipped with a fastening tape are widely known. For example, Patent Document 1 describes a disposable diaper provided with fastening tapes on both sides of a main body portion, and the fastening tape has a first fastening portion and a second fastening portion from the tip side, and is the first. Disposable diapers in which the fastening tape is folded back between the fastening portion and the second fastening portion are disclosed. Patent Document 2 is a disposable diaper provided with a base material sheet provided with fastening means on both sides of the back side of the diaper, and the base material sheet is provided with an opening on the tip side and an opening on the base end side. The base sheet is bent inward between the tip fastening means and the tip opening, and the bent base sheet is further bent outward between the tip opening and the base opening. As a result, the tip side opening and the base end side opening overlap each other, and a disposable diaper that allows the base material sheet to be temporarily fixed to the ventral outer surface of the diaper via a fastening means facing from the overlapping opening portion. It is disclosed.

Japanese Unexamined Patent Publication No. 2011-147712 Japanese Unexamined Patent Publication No. 2014-193208

It is desirable that the tape-type disposable diaper be worn around the wearer's waist with an appropriate degree of tightening. As a result, it is possible to prevent the leakage of excrement from the disposable diaper and to improve the wearing feeling of the disposable diaper. From this point of view, it is preferable that the tape-type disposable diaper is configured so that the fastening position can be easily adjusted so that the fastening tape can be fastened to an appropriate position at the time of wearing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to easily adjust the fastening position of the fastening tape at the time of mounting, and to appropriately fasten the fastening tape. It is to provide diapers.

The disposable diaper of the present invention that has been able to solve the above problems is a disposable diaper that has a width direction and a front-rear direction, and fastening tapes are attached to both sides of the diaper body in the width direction. Is a fixing portion formed on one end of the tape base material and attached to the diaper body, a knob portion formed on the other end of the tape base material, and an intermediate portion located between the fixing portion and the knob portion. The knob portion is provided with a first fastener and a second fastener on the diaper body side of the first fastener, and an opening is formed between the first fastener and the second fastener. It has a feature in the place where it is.

In the disposable diaper of the present invention, since an opening is formed between the first fastener and the second fastener of the knob portion of the fastening tape, the knob portion is placed between the first fastener and the second fastener. The second fastener can be exposed through the opening by folding back the first fastener and the second fastener inward. By handling the fastening tape in this way, when the disposable diaper is attached, the second fastener exposed from the opening can be temporarily fastened to the diaper body, and the fastening tape can be fastened to the diaper body. It becomes easy to adjust the position properly. At this time, since the second fastener is exposed through the opening, the second fastener is fastened to the diaper body with a relatively weak force, and it is easy to adjust the fastening position of the fastening tape. Become. Once the fastening position of the fastening tape is determined, the temporary fastening of the fastening tape is released, the folding back at the knob is unfolded, and the first and second fasteners are fastened again. Disposable diapers can be properly worn around the wearer's waist.

In the disposable diaper of the present invention, the fastening tape may be folded in advance at the knob portion. In this case, the knob portion of the fastening tape is the first crease formed between the first fastener and the second fastener, and is folded back with the first fastener and the second fastener inside, and the opening is opened. It overlaps with the second fastener. If the fastening tape is folded in advance at the first fold in this way, the second fastener can be opened by using the fastening tape without unfolding the folding of the first fold when attaching the disposable diaper. It can be easily temporarily attached to the diaper body via the part.

The first fold is preferably formed between the second fastener and the opening. As a result, no crease is formed in the opening, and it becomes easy to secure the rigidity of the knob portion. In addition, the folded portion of the knob portion folded back at the first fold can be easily picked by hand, and the handleability of the fastening tape is improved.

The fastening tape may be further folded along the widthwise side edges of the diaper body. In this case, the middle portion of the fastening tape is a second fold formed on the diaper body side from the tip of the folded knob portion, and is folded back with the folded knob portion inside, and the second fastener is opened. It is preferable that the diaper is temporarily fastened to the diaper body via the portion. By folding the fastening tape in this way, it becomes difficult for the first fastener and the second fastener to be unintentionally joined to other members before the use of the disposable diaper, and the handleability of the diaper is improved. Further, by temporarily fastening the second fastener to the diaper body through the opening, the folded state of the fastening tape is preferably maintained.

It is preferable that the second fastener is provided so as to cross the knob portion of the tape base material in the front-rear direction, and the knob portion is formed so that the length in the front-rear direction becomes shorter toward the tip. If the fastening tape is formed in this way, when the fastening tape is folded back at the first fold, the front-rear end of the second fastener is exposed without overlapping with the folded knob portion. The front-rear end of the second fastener also contributes to temporary attachment to the diaper body. Therefore, the fastening tape can be stably temporarily fastened to the diaper body.

The tape base material is preferably composed of a non-woven fabric having a mass of 50 g / m ^{2 or more per unit area.} As a result, the tape base material has sufficient rigidity, and the handleability of the fastening tape is improved. In addition, the fastening tape can be easily folded back at the knob portion or the intermediate portion.

In the disposable diaper of the present invention, the fastening tape is folded back between the first fastener and the second fastener with the first fastener and the second fastener inside, so that the second fastener is passed through the opening. Can be exposed. By handling the fastening tape in this way, when the disposable diaper is attached, the second fastener exposed from the opening can be temporarily fastened to the diaper body, and the fastening tape can be fastened to the diaper body. It becomes easy to adjust the position properly. At this time, since the second fastener is exposed through the opening, the second fastener is fastened to the diaper body with a relatively weak force, and it is easy to adjust the fastening position of the fastening tape. Become. When the fastening position of the fastening tape is determined, the temporary fastening of the fastening tape is released, the folding back at the knob part is unfolded, and the first fastener and the second fastener are fastened again. , Disposable diapers can be properly worn around the wearer's waist.

A plan view of the disposable diaper of the present invention as viewed from the skin surface side is shown. The II-II sectional view of the disposable diaper shown in FIG. 1 is shown. The enlarged plan view of the adhesive tape of the disposable diaper shown in FIG. 1 is shown. The IV-IV cross-sectional view of FIG. 3 is shown. A plan view of the fastening tape shown in FIG. 3 folded back at the first fold is shown. The VI-VI sectional view of FIG. 5 is shown. A plan view of the fastening tape shown in FIG. 5 in a state of being further folded back at the second fold is shown. FIG. 7 shows a sectional view taken along line VIII-VIII.

The disposable diaper of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments shown in the drawings.

1 to 4 show an example of the disposable diaper of the present invention. FIG. 1 shows a plan view of a disposable diaper as viewed from the skin surface side, and FIG. 2 shows a cross-sectional view of the disposable diaper II-II shown in FIG. FIG. 3 shows an enlarged plan view of the adhesive tape of the disposable diaper shown in FIG. 1, and FIG. 4 shows a sectional view taken along line IV-IV of FIG. In the figure of the present application, the arrow x represents the width direction, the arrow y represents the front-back direction, and the direction perpendicular to the surface formed by the arrows x, y represents the thickness direction z. In FIG. 1, the upper side of the drawing corresponds to the front side of the diaper, and the lower side of the drawing corresponds to the rear side of the diaper.

The disposable diaper 1 has a diaper main body 2 and fastening tapes 21 attached to both sides of the diaper main body 2 in the width direction x. The diaper body 2 has a front side portion, a rear side portion, and a crotch portion located between them, and fastening tapes 21 are attached to both sides of the rear side portion of the diaper body 2. When wearing the disposable diaper 1, the front side is applied to the wearer's abdomen, the crotch is applied to the wearer's crotch, the rear side is applied to the wearer's back, and the fastening tape 21 is applied to the front side of the diaper body 2. It is used by forming it into a pants shape by fastening to. For example, a fastening-corresponding portion 10 is provided on the outer surface of the front side portion of the diaper main body 2, and the fastening tape 21 is fastened to the fastening-corresponding portion 10 to wear the diaper.

The disposable diaper 1 has a front-rear direction y and a width direction x. The anteroposterior direction y corresponds to a direction extending in the anteroposterior direction of the wearer's crotch when wearing a disposable diaper. The width direction x means a direction that is on the same surface as the disposable diaper and orthogonal to the front-back direction y, and corresponds to the left-right direction of the wearer when the disposable diaper is worn. Further, in the present invention, the skin side of the disposable diaper means the side facing the skin of the wearer when wearing the disposable diaper, and the outside of the disposable diaper means the wearer when wearing the disposable diaper. It means the opposite side.

The diaper body 2 has a top sheet 3, a back sheet 4, and an absorber 5 arranged between them. The top sheet 3 is a sheet located on the wearer side when the disposable diaper is worn, and the back sheet 4 is a sheet located on the opposite side of the wearer, that is, on the outside when the disposable diaper is worn. The urine or the like excreted from the wearer passes through the top sheet 3 and is stored in the absorber 5. The back sheet 4 prevents excrement from leaking to the outside.

The top sheet 3 is preferably liquid permeable, and is preferably a non-woven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton, and polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example). For example, a non-woven fabric formed of hydrophobic fibers such as nylon), in which the surface of the hydrophobic fibers is hydrophilized by a surfactant, or the like can be used. Further, as the top sheet 3, a woven fabric, a knitted fabric, a perforated resin film or the like may be used.

The backsheet 4 is preferably liquid-impermeable, and is a non-woven fabric or resin film formed of hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example, nylon). Etc. can be used. Further, as the back sheet 4, a laminate of a non-woven fabric and a film may be used.

The absorber 5 is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorber 5, for example, a molded body obtained by molding an absorbent material into a predetermined shape is used, or the molded body is covered with a paper sheet (for example, tissue paper or thin paper) or a coating sheet such as a liquid-permeable non-woven fabric. Can be used. Examples of the absorbent material include hydrophilic fibers such as pulp fibers and water-absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulosic-based, and starch / acrylonitrile-based. Further, the water-absorbent material may include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-weldable fibers such as polyamide fibers. These heat-weldable fibers may be hydrophilized with a surfactant or the like in order to enhance the affinity with urine or the like.

The absorbent material preferably contains hydrophilic fibers from the viewpoint of increasing the absorption rate of urine and the like. Further, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water-absorbent resin. Therefore, the absorber preferably contains hydrophilic fibers (particularly pulp fibers) and a water-absorbent resin. In this case, for example, it is preferable to use an aggregate of hydrophilic fibers mixed or sprayed with a water-absorbent resin.

The absorber 5 may be a sheet-shaped absorber. Examples of the sheet-shaped absorber include those formed so as to have a water-absorbent resin between the non-woven fabrics and not to have pulp fibers. Since the sheet-shaped absorber thus formed has a water-absorbent resin between the non-woven fabrics, a high absorption capacity can be realized. Further, since the sheet-shaped absorber does not have pulp fibers between the non-woven fabrics, it can be formed thin without being bulky.

The shape (planar shape) of the absorber 5 is not particularly limited. The shape of the absorber (or the molded body constituting the absorber) may be appropriately determined according to the intended use, and examples thereof include a rectangle, an hourglass shape, a gourd shape, and a battledore shape. It should be noted that the absorber or the molded body constituting the absorber is formed in an hourglass shape from the viewpoint that the absorber is sandwiched between the thighs of the wearer and is not easily distorted even if it is pressed in the width direction. preferable.

It is preferable that the diaper main body 2 is joined with side sheets 6 extending outward in the width direction x from the top sheet 3 on both sides of the top sheet 3 in the width direction x. The side sheet 6 is preferably liquid impermeable and can be made of a sheet material that can be used for the back sheet 4.

The side sheet 6 preferably has rising flaps 7 formed on both sides of the top sheet 3 in the width direction x. In this case, as shown in FIG. 2, it is preferable that the side sheet 6 is provided with an upright elastic member 8 extending in the front-rear direction y in the inner portion in the width direction x from the joint portion 9 with the top sheet 3. The inner portion of the side sheet 6 is raised by the contraction force of the standing elastic member 8, and the rising flap 7 can be formed. By providing the rising flap 7, it is possible to prevent lateral leakage of urine or the like. The inner surface of the end portion of the rising flap 7 in the front-rear direction y may be joined onto the top sheet 3, which makes it easier for the rising flap 7 to stand up toward the wearer's skin when wearing the diaper.

When a non-woven fabric is used as each of the sheets described above, it is preferable to use a spunbonded non-woven fabric, an air-through non-woven fabric, a point-bonded non-woven fabric, a melt-blown non-woven fabric, an air-laid non-woven fabric, an SMS non-woven fabric, or the like. Mass per unit area of each sheet is preferably from 10 g / m ² or more, 12 g / m ² or more, and also preferably 40 g / m ² or less, 30 g / m ² or less is more preferable.

It is preferable that the diaper body 2 is provided with elastic members 11 around the legs extending in the front-rear direction y on both sides in the width direction x (see FIG. 1). By providing the elastic member 11 around the leg, gathers can be formed around the leg of the wearer to improve the fit around the leg and prevent lateral leakage.

The diaper body 2 may be provided with a waist elastic member 12 extending in the width direction x at the end in the front-rear direction y. The contraction force of the elastic member 12 for the waist forms waist gathers along the waist circumference of the wearer, and prevents excrement such as urine from leaking from the back side or the abdomen side.

As each elastic member described above, elastic elastic materials usually used for disposable diapers such as polyurethane thread, polyurethane film, and natural rubber can be used. The elastic member is preferably fixed with an adhesive such as a hot melt adhesive in a stretched state. For example, a polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched to a magnification of 1.1 to 5.0 times, arranged, and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. The magnification is 1.0 times in the non-stretched state.

As shown in FIGS. 3 and 4, the fastening tape 21 is composed of a tape base material 22 and fasteners 25 and 26 provided on the tape base material 22. The tape base material 22 has a first surface 23 on which fasteners 25 and 26 are provided, and a second surface 24 on the opposite side of the first surface 23. In the unfolded state of the fastening tape 21 without folding, the first surface 23 corresponds to the surface of the tape base material 22 on the skin surface side, and the second surface 24 corresponds to the outer surface of the tape base material 22. The fastening tape 21 has a fixing portion 27 formed on one end of the tape base material 22 and attached to the diaper body 2, a knob portion 29 formed on the other end of the tape base material 22, and a fixing portion 27 and a knob. It has an intermediate portion 28 located between the portions 29. In the fastening tape 21, the fixing portion 27, the intermediate portion 28, and the knob portion 29 are separated in the width direction x.

As the tape base material 22, a non-woven fabric, a woven fabric, a knitted fabric, a resin film, a laminate thereof, or the like can be used. From the viewpoint of enhancing the adhesiveness between the tape base material 22 and the diaper body 2, the tape base material 22 is preferably made of a woven fabric, a knitted cloth, or a non-woven fabric, and is preferably made of a non-woven fabric. More preferred. Further, by forming the tape base material 22 from the non-woven fabric, it becomes easy to fold back the tape base material 22.

When a non-woven fabric is used for the tape base material 22, spunbonded non-woven fabric, air-through non-woven fabric, point-bonded non-woven fabric, melt-blown non-woven fabric, air-laid non-woven fabric, SMS non-woven fabric and the like can be used. It is preferable to use, and it is more preferable to use a spunbonded non-woven fabric. By using such a non-woven fabric, it becomes easy to obtain a high-strength tape base material. Further, the non-woven fabric used for the tape base material 22 is preferably embossed, which imparts rigidity to the tape base material 22 and improves the handleability of the fastening tape 21.

Mass per unit area of the tape substrate 22, 50 g / m ² or more preferably, 55 g / m ² or more, and also preferably from 120 g / m ² or less, 100 g / m ² or less is more preferable. If the mass of the tape base material 22 per unit area is 50 g / m ² or more, the tape base material 22 has sufficient rigidity, and even if an opening is formed in the tape base material 22 as described later. The fastening tape 21 is less likely to be distorted. When the mass per unit area of the tape base material 22 is 120 g / m ² or less, the tape base material 22 does not become too thick and the handleability is improved.

The fixing portion 27 is a portion formed at one end of the tape base material 22 and attached to the diaper main body 2. The fixing portion 27 is fixed to the diaper body 2 by a joining means such as an adhesive, heat welding, or ultrasonic welding. As shown in FIG. 4, the fixing portion 27 of the tape base material 22 is preferably arranged between the side sheet 6 and the back sheet 4, whereby the fastening tape 21 can be stably attached to the diaper body 2. Can be done.

The knob portion 29 is a portion formed on the other end of the tape base material 22, and the knob portion 29 is provided with a first fastener 25 and a second fastener 26. In the drawing, one fastening tape 21 is provided with two knob portions 29, but only one knob portion 29 may be provided for one fastening tape 21, and three or more knob portions 29 may be provided. May be good.

The first fastener 25 and the second fastener 26 are provided on the first surface 23 of the tape base material 22. The second fastener 26 is provided on the diaper body 2 side of the first fastener 25. Specifically, the second fastener 26 is provided on the diaper body 2 side of the first fastener 25, apart from the first fastener 25. In the fastening tape 21, it is preferable that no fastener is provided on the second surface 24 of the tape base material 22, and it is preferable that the fastener is provided only on the knob portion 29.

As the first fastener 25 and the second fastener 26, a hook-and-loop fastener or an adhesive tape can be used. The first fastener 25 and the second fastener 26 are formed to be detachably attached to the fastening corresponding portion 10 provided on the front side portion of the diaper main body 2. As the hook-and-loop fastener, a hook member or a loop member of a hook / loop / fastener can be used. When the hook member of the hook-and-loop fastener is used as the fasteners 25 and 26, a loop member of the hook-and-loop fastener is provided on the outer surface of the front side portion of the diaper body 2 as a fastening corresponding portion 10, or the front side portion of the diaper body 2 is provided. The outer side surface may be made of a material (for example, non-woven fabric, woven fabric, knitted fabric, etc.) that functions as a loop member, and this may be used as the fastening corresponding portion 10. When adhesive tape is used as the fasteners 25 and 26, a resin film is provided on the outer surface of the front side portion of the diaper body 2 as the fastening corresponding portion 10, or the outer surface of the front side portion of the diaper body 2 is composed of the resin film. However, this may be used as the fastening corresponding portion 10. The hook member of the hook-and-loop fastener is composed of, for example, a large number of hooks having an anchor shape, a hook shape, a mushroom shape, or the like protruding from the base.

The intermediate portion 28 is a portion formed between the fixed portion 27 and the knob portion 29. The intermediate portion 28 is a portion between the fixing portion 27 and the knob portion 29, and corresponds to a portion that is not attached to the diaper main body 2 and is not provided with fasteners 25 and 26. The fixing portion 27 and the intermediate portion 28 are separated by the outer edge in the width direction x of the portion where the tape base material 22 is attached to the diaper body 2. The knob portion 29 and the intermediate portion 28 are separated by a side edge (inner edge in the width direction x) of the second fastener 26 on the diaper body 2 side.

The fastening tape 21 has an opening 31 formed in the knob portion 29, and the opening 31 is provided between the first fastener 25 and the second fastener 26. Since the fastening tape 21 has the opening 31 formed in this way, the knob portion 29 is attached to the portion between the first fastener 25 and the second fastener 26 (specifically, the second fastener of the knob portion 29). The second fastener 26 is passed through the opening 31 by folding back the first fastener 25 and the second fastener 26 inward at the portion between the tool 26 and the opening 31 or the portion overlapping the opening 31). Can be exposed. By handling the fastening tape 21 in this way, the disposable diaper 1 temporarily fastens the second fastener 26 exposed from the opening 31 to the fastening corresponding portion 10 of the diaper body 2 when the diaper is attached. Can be done. At this time, the first fastener 25 can be in an unexposed state, and the second fastener 26 is joined to the fastening corresponding portion 10 of the diaper body 2 via the opening 31, so that the fastening tape 21 is attached. It can be anchored to the anchoring corresponding portion 10 with a weak force. Therefore, when the disposable diaper 1 is attached, it becomes easy to adjust the fastening position of the fastening tape 21 provided on both sides of the diaper main body 2 in the width direction x to the fastening corresponding portion 10. When the fastening position of the fastening tape 21 is determined, the temporary fastening of the fastening tape 21 is released one by one and refastened to the fastening corresponding portion 10, that is, at the knob portion 29 of the fastening tape 21. By unfolding the folds and fastening the first fastener 25 and the second fastener 26 to the fastening corresponding portion 10, the disposable diaper 1 can be tightened around the wearer's waist in a well-balanced manner on the left and right. Easy to install.

5 and 6 show an example of the fastening tape 21 shown in FIGS. 3 and 4 in a state in which the second fastener 26 is exposed from the opening 31 by folding back at the knob portion 29. FIG. 5 shows a plan view of the fastening tape 21 folded back at the knob portion 29 as viewed from the skin surface side, and FIG. 6 shows a VI-VI cross-sectional view of FIG.

In FIGS. 5 and 6, the fastening tape 21 is a first fold F1 formed between the first fastener 25 and the second fastener 26, with the first fastener 25 and the second fastener 26 inside. The opening 31 is folded back so as to overlap the second fastener 26. By folding back the fastening tape 21 in this way, the disposable diaper 1 can temporarily fasten the second fastener 26 exposed from the opening 31 to the fastening corresponding portion 10 at the time of mounting. At this time, since the second fastener 26 is exposed through the opening 31, the second fastener 26 is fastened with a relatively weak force to the fastening corresponding portion 10, and the fastening tape 21 is fastened. It becomes easy to adjust the anchoring position to the portion 10.

The shape and size of the opening 31 are not particularly limited as long as it is formed between the first fastener 25 and the second fastener 26 of the knob portion 29. The shape of the opening 31 may be circular as shown in FIGS. 3 and 5, or may be an ellipse, an oval, a semicircle, or a polygon such as a triangle or a quadrangle. The size of the opening 31 is, for example, preferably 5 mm or more, more preferably 7 mm or more, more preferably 30 mm or less, more preferably 25 mm or less, still more preferably 20 mm or less in the width direction x and the front-back direction y. The fastening tape 21 may be provided with an opening other than the knob portion 29 of the tape base material 22, but the opening 31 is provided only in the knob portion 29 from the viewpoint of ensuring the strength of the fastening tape 21. Is preferable.

The fastening tape 21 is preferably folded back at the first fold F1 in advance. That is, the knob portion 29 is a first fold F1 formed between the first fastener 25 and the second fastener 26, and is folded back with the first fastener 25 and the second fastener 26 inside to form an opening. It is preferable that 31 is overlapped with the second fastener 26. If the fastening tape 21 is folded in advance at the first fold F1 in this way, when the disposable diaper 1 is attached, the fastening tape 21 can be used without unfolding the folding of the first fold F1. 2 The fastener 26 can be easily temporarily fixed to the fastening corresponding portion 10 via the opening 31.

When the fastening tape 21 is folded back at the first fold F1 in advance, the first fastener 25 is preferably temporarily fastened to the intermediate portion 28, and more specifically, temporarily fastened to the tape base material 22 of the intermediate portion 28. It is preferable that it is. As a result, when the fastening tape 21 is temporarily fastened to the fastening corresponding portion 10, the knob portion 29 is maintained in a state of being folded back at the first fold F1, and the handling of the fastening tape 21 is improved. In this case, the first fastener 25 is made of a hook member of a hook-and-loop fastener, and the tape base material 22 is made of a non-woven fabric, because the first fastener 25 can be easily temporarily fastened to the tape base material 22. Is preferable.

When the fastening tape 21 is folded back at the first fold F1 in advance, the second fastener 26 is preferably temporarily fastened to the knob portion 29, and more specifically, temporarily fastened to the tape base material 22 of the knob portion 29. It is preferable that it is. As a result, the state in which the second fastener 26 is exposed from the opening 31 is maintained, and it becomes easy to temporarily attach the second fastener 26 to the fastening corresponding portion 10 via the opening 31. In this case, the second fastener 26 is made of a hook member of a hook-and-loop fastener, and the tape base material 22 is made of a non-woven fabric, because the second fastener 26 can be easily temporarily fastened to the tape base material 22. Is preferable.

The second fastener 26 is preferably provided so as to cross the knob portion 29 of the tape base material 22 in the front-rear direction y. By providing the second fastener 26 in this way, it is possible to increase the area where the second fastener 26 can be temporarily fastened to the knob portion 29 when the fastening tape 21 is folded back at the first fold F1. In this case, if the knob portion 29 is formed so that the length in the front-rear direction y becomes shorter toward the tip 30, when the fastening tape 21 is folded back at the first fold F1, the second fastener 26 The end portion in the front-rear direction y is exposed without overlapping with the folded knob portion 29. Therefore, by forming the second fastener 26 and the knob portion 29 in this way, when the fastening tape 21 is temporarily fixed to the fastening corresponding portion 10 in the state of being folded back at the first fold F1, the second fastener is used. The 26 can be temporarily fixed to the fastening corresponding portion 10 through the opening 31, and the end portion of the second fastener 26 in the front-rear direction y can also be temporarily fixed to the fastening corresponding portion 10. As a result, the fastening tape 21 can be temporarily fastened to the fastening corresponding portion 10 more stably.

The first fold F1 is preferably formed between the second fastener 26 and the opening 31. As a result, it is not necessary to form the opening 31 excessively large, and the crease is not formed in the opening 31, so that the rigidity of the knob portion 29 can be easily ensured. Further, the folded portion of the knob portion 29 folded back at the first fold F1 (that is, the portion near the first fold F1 of the folded knob portion 29) can be easily picked by hand, and the handleability of the fastening tape 21 becomes easier. It will be good.

The first fold F1 is preferably formed along the outer edge of the second fastener 26 in the width direction x, for example, from the outer edge of the second fastener 26 in the width direction x to the outside in the width direction x. It is preferably formed within 3 mm, and more preferably within 2 mm. Since the first fold F1 is formed in this way, the knob portion 29 folded back at the first fold F1 can be easily picked by hand, and the handleability of the fastening tape 21 is improved. In this case, it is preferable that the outer edge of the second fastener 26 in the width direction x is formed so as to extend linearly in the front-rear direction y.

The second fastener 26 is preferably made of a hook member of a hook-and-loop fastener because it is easy to temporarily attach the second fastener 26 exposed from the opening 31 to the fastening corresponding portion 10. Since the hook member of the hook-and-loop fastener is configured such that the hook protrudes from the base, if the second fastener 26 is composed of the hook member of the hook-and-loop fastener, the hook of the hook member protrudes from the opening 31 and the second fastener is fastened. The tool 26 is easily engaged with the fastening corresponding portion 10.

Before use, the fastening tape 21 may be further folded back at the second fold F2 from the state shown in FIGS. 5 and 6, as shown in FIGS. 7 and 8. FIG. 7 shows a view of the fastening tape 21 shown in FIG. 5 further folded back at the second fold F2 and viewed from the skin surface side, and FIG. 8 shows a sectional view taken along line VIII-VIII of FIG.

In FIGS. 7 and 8, the intermediate portion 28 of the fastening tape 21 is a second fold F2 formed on the diaper body 2 side of the tip 30 of the folded knob portion 29, and the folded knob portion 29 is inside the folded knob portion 29. It is folded back. At this time, since the second fastener 26 of the fastening tape 21 is exposed from the opening 31, the second fastener 26 is passed through the opening 31 by folding back the fastening tape 21 at the second fold F2. It can be temporarily fastened to the diaper body 2. In FIG. 8, the second fastener 26 is drawn away from the side sheet 6 of the diaper main body 2 through the opening 31, but the second fastener 26 is pressed against the side sheet 6 side to hold the second fastener 26. The tool 26 can be temporarily fastened to the side sheet 6 via the opening 31. By folding the fastening tape 21 in this way, it becomes difficult for the first fastener 25 and the second fastener 26 to unintentionally join to other members before the disposable diaper 1 is used, and the handleability of the diaper is improved. .. Further, by temporarily fastening the second fastener 26 to the diaper main body 2 via the opening 31, the folded state of the fastening tape 21 is preferably maintained.

The second fold F2 is preferably formed along the side edge of the diaper body 2 in the width direction x, and is formed within 3 mm from the side edge of the diaper body 2 in the width direction x to the outside of the width direction x, for example. It is preferably formed within 2 mm. As a result, the fastening tape 21 can be compactly folded so as to overlap the diaper body 2.

When using a diaper, as shown in FIGS. 7 and 8, the fastening tape 21 is folded back at the first fold F1 and the second fold F2, and then the second fastener 26 is temporarily fastened and stopped. The folding tape 21 is unfolded at the second fold F2 so that the second fastener 26 is exposed from the opening 31 as shown in FIGS. 5 and 6. In this state, the diaper body 2 is applied to the wearer's crotch, the fastening tape 21 is temporarily fastened to the fastening corresponding portion 10, and the fastening position of the fastening tape 21 is adjusted according to the wearer's body shape. .. After that, the fastening tape 21 is folded back at the first fold F1, and the fastening tape 21 is refastened to the fastening corresponding portion 10 with the first fastener 25 and the second fastener 26 to reattach the disposable diaper. 1 can be properly attached.

1: Disposable diaper 2: Diaper body 3: Top sheet 4: Back sheet 5: Absorber 21: Fastening tape 22: Tape base material 25: 1st fastener 26: 2nd fastener 27: Fixing part 28: Intermediate part 29: Knob part 30: Tip (of the knob part) 31: Opening F1: 1st fold F2: 2nd fold

Claims (6)

A disposable diaper that has a width direction and a front-back direction, and fastening tapes are attached to both sides of the diaper body in the width direction.
The fastening tape is formed at one end of the tape base material and is located between a fixing portion attached to the diaper body, a knob portion formed at the other end of the tape base material, and the fixing portion and the knob portion. Has an intermediate part and
The knob portion is provided with a first fastener and a second fastener on the diaper body side of the first fastener, and an opening is formed between the first fastener and the second fastener. Disposable diapers that are characterized by being made. The knob portion is a first fold formed between the first fastener and the second fastener, and is folded back with the first fastener and the second fastener inside, and the opening is the opening. The disposable diaper according to claim 1, which overlaps with the second fastener. The disposable diaper according to claim 2, wherein the first fold is formed between the second fastener and the opening. The intermediate portion is a second fold formed on the diaper body side with respect to the tip of the folded knob portion, and is folded back with the folded knob portion inside, and the second fastener opens the opening. The disposable diaper according to claim 2 or 3, which is temporarily fastened to the diaper body via the diaper. The second fastener is provided so as to cross the knob portion of the tape base material in the front-rear direction.
The disposable diaper according to any one of claims 1 to 4, wherein the knob portion is formed so that the length in the front-rear direction becomes shorter toward the tip. The disposable diaper according to any one of claims 1 to 5, wherein the tape base material is made of ^{a non-woven fabric having a mass of 50 g / m 2 or more per unit area.}

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