TW201345504A - Disposable diaper - Google Patents

Abstract

A fastening tape (100), which is provided in a disposable diaper (10), comprises a base sheet (105) and a hook sheet (110), said hook sheet (110) being provided with a plurality of engagement hooks (111) and being fixed to the base sheet (105). At least in the outside the hook sheet (110) along the width direction (DW) of the article, an elevated section (130) is disposed adjacent to the hook sheet (110). The hook sheet (110) and the elevated section (130) are formed on the surface of the base sheet (105) in the side to be in contact with the wearer's skin. The elevated section (130) has such a thickness as to form the same plane as the hook sheet (110).

Description

Disposable disposable diaper

The present invention relates to a disposable disposable diaper having a buckle at one of a front waistline portion or a back waistline portion.

In the past, a so-called unfolded disposable disposable diaper having a buckle for attaching a side flap of a rear waist portion has been widely used as a disposable disposable diaper which is mainly used for infants and the like. The above-mentioned disposable disposable diapers having the buckle-expanding type are widely used in newborns and infants, especially from the ease of wearing and detaching.

In the unfolded disposable diaper of this type, it is known that the base end portion on the skin contact surface side of the buckle is covered with a side flap (non-woven fabric) which is softer than the buckle (for example, Patent Document 1) ). According to such a disposable diaper, it is possible to suppress the skin irritation of infants and the like by the buckle, so that the infant is less likely to feel uncomfortable and painful.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2003-70840 (Fig. 1)

According to the conventional disposable disposable diaper, since the base end portion of the skin contact surface side of the buckle is covered with a soft non-woven fabric, it is possible to suppress the skin of the baby from being irritated by the buckle, but the wear and tear is used. At the time of disposable disposable diapers, there is still room for improvement in terms of irritation and discomfort caused by contact with the buckle.

Specifically, the buckle must be in contact with the disposable diaper after use, and when the buckle is unfolded, it is locked at the target tape or peeled off from the target tape, and will be used. After the disposable disposable diaper is smashed into a group, it will be contacted several times (a total of 8 or more buckles on the left and right sides).

However, the buckle is the only protrusion among the disposable disposable diapers, and since it is the member having the highest rigidity, it is easy to feel irritation and discomfort due to contact with the buckle. In particular, it is known that mothers who have increased the secretion of maternal hormones after production tend to feel strong discomfort and disgusting feelings for hard objects and sharp objects.

Moreover, in the recent disposable disposable diaper, the hardness of the buckle becomes more conspicuous by the improvement of the touch feeling of a thin type absorber and a top sheet.

Accordingly, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a disposable disposable diaper which can reduce irritation and discomfort when contacting a buckle.

The present invention is characterized in that the absorbent body (absorbent body 15) including a liquid retaining absorbent body (absorbent body 35) is long, which is composed of a front waist portion (front waist portion 20) and a rear waist portion ( a rear waist portion 40) and a lower portion (the lower portion 30); the side flaps (side flaps 50) are provided at side edges of the product in the width direction (product width direction D _W ) of the absorbent body. At least a part of the buckle and the buckle (the buckle 100) are attached to the side flap, and extend from the one of the front waistline portion or the back waistline portion toward the outside of the absorbent body in the width direction. A disposable disposable diaper (a disposable disposable diaper 10) for the other of the front waistline portion or the back waistline portion, wherein the buckle has a base material sheet (base material sheet 105) and a plurality of snap hooks (engagement hooks 111) are attached to the hook sheets (hook sheets 110) of the base sheet, and are provided on the outer side of the hook sheet at least in the width direction of the product, adjacent to the hook sheets. a bulkiness improving portion (a bulkiness improving portion 130), the hook sheet and the bulkiness improving portion Plane is provided on the base sheet contact side of the skin, increase the bulkiness of the hook portion is a sheet having a thickness such same plane.

According to a feature of the present invention, a disposable disposable diaper which can reduce irritation and discomfort when contacting a buckle can be provided.

10‧‧‧Disposable disposable diapers

15‧‧‧Absorbable ontology

20‧‧‧ front waist circumference

30‧‧‧ Lower part

35‧‧‧Acceptor

40‧‧‧After waist circumference

50‧‧‧Flanking

55‧‧‧ Leg elastic members

60‧‧‧ Target tape

70‧‧‧back sheet

100, 100A~100F‧‧‧ buckle

105, 105A, 105F‧‧‧ substrate sheet

110, 110B‧‧‧ hook sheet

111‧‧‧ snap hook

120, 120A~120C, 130, 130A~130F‧‧‧Bluffiness Improvement Department

141, 141A, 142, 142A‧‧‧ hook sheet cover

141C, 142C‧‧‧ hook sheet cover

Fig. 1 is a plan view of a disposable disposable diaper 10 according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion (the side flap 50 side) of the buckle 100 of the disposable disposable diaper 10 according to the embodiment of the present invention.

Figure 3 is a cross-sectional view of the buckle 100 taken along line F3-F3 of Figure 2 .

Fig. 4 is a schematic view showing a cross-sectional shape of the buckle 100 shown in Fig. 3.

Fig. 5 is an enlarged view of a buckle 100A according to a modification of the present invention and a schematic view showing a cross-sectional shape of the buckle 100A.

Fig. 6 is an enlarged view of a buckle 100B according to a modification of the present invention and a schematic view showing a cross-sectional shape of the buckle 100B.

Fig. 7 is a view showing a buckle of another modification of the present invention.

[Formation for carrying out the invention]

Next, an embodiment of the disposable disposable diaper of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar elements are denoted by the same or similar reference numerals. However, if the drawing is a pattern, it is necessary to pay attention to the case where the ratio of each size is different from the actual one.

Therefore, the specific dimensions and the like must be judged by referring to the following description. Further, the drawings also include portions having different dimensional relationships and ratios.

(1) The outline shape of disposable disposable diapers

Fig. 1 is a plan view of the disposable disposable diaper 10 of the embodiment. As shown in Fig. 1, the disposable disposable diaper 10 is of a developed type having a front waistline portion 20, a straddle portion 30, and a rear waistline portion 40. The disposable disposable diaper 10 is especially suitable for use as an infant.

The absorbent body 15 is constituted by the front waistline portion 20, the straddle portion 30, and the rear waistline portion 40. The absorbent body 15 has an elongated shape including the liquid retaining body 35. In the present embodiment, the absorber 35 is provided across the front waistline portion 20, the straddle portion 30, and the rear waistline portion 40. The absorber 35 has a shape in which the width of the central portion of the absorbent body 15 in the longitudinal direction D _L of the product is narrowed. Further, the shape of the absorber 35 is not limited to the shape shown in Fig. 1, and may be a simple rectangle. Further, the absorber 35 may be provided at least across the lower portion 30.

The absorbent main body 15 is similar to the conventional unfolded disposable disposable diaper, and can be suitably formed using well-known members and materials. Further, the absorbent main body 15 may have a liquid-permeable surface sheet (not shown), a three-dimensional folded edge provided on the side edge portion of the absorbent body 15 along the product longitudinal direction D _L , and a width direction along the product. D _W is provided at the waist fold of the back waist portion 40 or the like.

A side flap 50 is provided at a side edge portion of the product in the width direction D _W of the absorbent body 15. The side flaps 50 are constituted by one or two or more sheets of non-woven fabrics stacked one on another.

In the present embodiment, the side flaps 50 are provided over the entire product length direction D _L of the absorbent body 15. That is, the side flaps 50 are provided from the front waistline portion 20 to the rear waistline portion 40. The width of the side flap 50 corresponding to the crotch portion 30 is narrower than the width of the side flap 50 corresponding to the front waistline portion 20 and the rear waistline portion 40. Further, the side flaps 50 are not necessarily provided in the entire product length direction D _L of the absorbent body 15, and may be provided only in a region corresponding to the rear waistline portion 40, for example.

Further, in the side edge portion of the absorbent body 15 in the product width direction D _W , specifically, the side flap 50 is provided with a leg elastic member 55 which is expandable and contractible along the product length direction D _{L of} the absorbent body 15. The absorbent body 15 is contracted by the leg elastic member 55 in the longitudinal direction D _{L of the} product. The absorbent body 15 thus contracted can be elongated in the longitudinal direction D _{L of the} article.

A buckle 100 is attached to the side flaps 50. Specifically, the buckle 100 is extended from the rear waist portion 40 toward the outside of the product width direction D _{W of} the absorbent body 15. The buckle 100 is configured to be caught on the front waistline portion 20. The hook sheet 110 of the buckle 100 (not shown in FIG. 1 , see FIG. 2 ) is a target belt that is engaged with the back sheet 70 (not shown in FIG. 1 , see FIG. 3 ) provided on the front waist portion 20 . Slice 60.

Further, the buckle 100 is not provided in the rear waist portion 40, and may be attached to the side flap 50 from the front waist portion 20 so as to extend outward in the product width direction D _{W of} the absorbent body 15, but is lying on the back. In the case of an infant who has a large number of disposable diapers after replacement, the buckle 100 is preferably attached to the rear waist portion 40.

(2) the shape of the buckle

Next, the shape of the buckle 100 will be described with reference to FIGS. 2 to 4 . Fig. 2 is an enlarged view of a portion of the buckle 100 of the disposable disposable diaper 10 (side flap 50 side). Figure 3 is a cross-sectional view of the buckle 100 taken along line F3-F3 of Figure 2 . Fig. 4 is a schematic view showing a cross-sectional shape of the buckle 100 shown in Fig. 3.

As shown in FIGS. 2 to 4, the buckle 100 is attached to a region corresponding to the side flaps 50 of the rear waistline portion 40 (see FIG. 1). The buckle 100 has a hook sheet 110 provided with a plurality of engaging hooks 111, and a base sheet 105 formed of a non-woven fabric. The hook sheet 110 is fixed to the base sheet 105.

The hook sheet 110 is fixed to the base sheet 105, specifically, joined. The joining of the hook sheet 110 to the base sheet 105 is desirably such that the rigidity of the buckle 100 is not unnecessarily increased. Specifically, it is preferable that the hook sheet 110 and the base sheet 105 are joined by a batch-coated hot-melt adhesive such as a dot, a wire or a spiral. Further, the hook sheet 110 and the base sheet 105 may be joined by heat sealing or the like.

Moreover, in order to reduce the rigidity of the hook sheet 110, various methods known in which the thickness of the base material portion of the hook sheet 110 is made thin, or the gap of the base material portion is increased can be used.

The base sheet 105 is composed of one or two or more sheets of non-woven fabric. As the base sheet 105, a nonwoven fabric produced by a method such as spunbond (SB) or spunbond-meltblown-spunbond (SMS) can be used. The basis weight of the nonwoven fabric constituting the base sheet 105 (the total basis weight at the time of the plurality of sheets) is 30 to 120 g/m ² , and preferably 40 to 90 g/m ² . When the basis weight is less than 30 g/m ² , it is difficult to maintain the strength of the disposable disposable diaper 10 after holding, and the frequency of breaking in the region where the hook sheet 110 does not exist is high when the fastening tape 100 is used. On the other hand, when the basis weight exceeds 120 g/m ² , the bending rigidity of the buckle 100 becomes too high.

In the present embodiment, a material of 80 g/m ² of SB non-woven fabric is used for the base sheet 105. Further, the hook sheet 110 is a material using SB non-woven fabric of 100 g/m ² .

Further, the buckle 100 is provided with a bulkiness improving portion 130 which is adjacent to the hook sheet 110 on the outer side in the product width direction D _W of the hook sheet 110. Further, in the present embodiment, the buckle 100 is provided with a bulk improving portion 120 which is adjacent to the hook sheet 110 inside the product width direction D _W of the hook sheet 110. That is, in the present embodiment, the bulkiness improving portions 120 and 130 are respectively provided on the outer side in the product width direction D _{W of the} hook sheet 110 and the inner side in the product width direction D _W .

The hook sheet 110, the bulkiness improving portion 120, and the bulkiness improving portion 130 are provided on a plane on the skin contact side of the base sheet 105. The bulkiness improving portion 120 and the bulkiness improving portion 130 have a thickness that is flush with the hook sheet 110.

Specifically, the bulkiness improving portion 120 and the bulkiness improving portion 130 have substantially the same thickness as the hook sheet 110. More specifically, the buckle band 100 of the region where the bulkiness improving portion 120 and the bulkiness improving portion 130 exist, and the step tape 100 of the region where the hook sheet 110 exists are -0.28 to 0.46 mm or less.

Thereby, the front end portion (free end) of the buckle 100 is eliminated. The step difference makes it difficult to feel the foreign body sensation of the hook sheet 110 when the hook sheet 100 is touched.

Further, the step is the position of the surface of the hook sheet 110 on which the engaging hook 111 is formed, and the distance from the position of the surface of the loft improving portion 130 (d in the drawing). The surface of the hook sheet 110 is used as a reference, and the positive (not shown) refers to the thickness of the bulkiness improving portion (the bulkiness improving portion 120, 130), and the negative refers to the thinness of the bulkiness improving portion.

Further, the difference in thickness means the thickness of the fastening tape 100 of the base sheet 105 including the region where the hook sheet 110 exists, and the base sheet 105 including the region where the bulkiness improving portion 130 (the bulkiness improving portion 120) exists. The difference in thickness of the buckle 100. In other words, in the present embodiment, when the bulkiness improving portion does not have a hook sheet cover portion to be described later, the difference between the step and the thickness is equal.

The difference between the step and the thickness was measured using a PEACOCK dial thickness gauge manufactured by Ozaki Co., Ltd., Japan. In the measurement, a measurement was performed such that a load of 4.5 gf/cm ² was applied to the buckle 100 (the bulkiness improving portion 130) using a circular measuring terminal having a diameter of 10 mm. In this state, the difference between the step and the thickness is measured such that the center position of the measurement terminal is at the center of the product length direction of the measurement target portion.

In this embodiment, the base sheet article length direction width D line width _L of the hook 110 of the sheet 105 to improve bulkiness and section 130 is substantially the same. Further, when the length direction of the article width D _L of the hook sheet 110 is narrower than the base sheet article longitudinal direction _L of the width D 105, the wide width portion 130 to improve the bulkiness of the sheet 110 is wider than the hook also No problem. At this time, the width of the bulkiness improving portion 130 is preferably not more than the width of the base sheet 105 in the product length direction D _L .

Further, in the present embodiment, it is preferable that the KES bending rigidity value of the product in the width direction D _W of the fastening tape 100 in the region in which the hook sheet 110 is provided is 1.64 gf ‧ cm ² /cm or less. When such a KES bending rigidity value is exceeded, it is not preferable because of the irritation and discomfort at the time of contacting the buckle 100.

The KES bending rigidity value was measured using a KES bending measuring machine manufactured by Jado Technology Co., Ltd., Japan. Specifically, the B value (bending rigidity) is measured. Further, when the KES bending side measuring machine is used, the measurement is performed along the product width direction D _W and the product length direction D _L , respectively, and it is preferable that the value is less than or equal to the value in both directions.

In order to reduce the bending rigidity of the hook sheet 110, the thickness of the base sheet 105 to which the hook sheet 110 is bonded can be made thin, or the thickness of the hook sheet 110 can be made thin.

(3) Change example

Next, a modified example of the buckle will be described with reference to Figs. 5 to 7 . Hereinafter, a portion different from the above-described buckle 100 will be mainly described.

(3.1) Change example 1

FIGS. 5(a) and 5(b) are enlarged views respectively showing the buckle 100A of the present modification and a cross-sectional view of the buckle 100A.

As shown in Figures 5(a) and (b), the buckle 100A has a hood The looseness improving unit 120A and the bulkiness improving unit 130A. The bulkiness improving portion 120A and the bulkiness improving portion 130A each have a hook sheet cover portion 141 and a hook sheet cover portion 142.

The hook sheet cover portion 141 is extended from the bulkiness improving portion 120A toward the hook sheet 110 side, and covers one end portion of the hook sheet 110 in the product width direction D _W . Similarly, the hook sheet cover portion 142 is extended from the bulkiness improving portion 130A toward the hook sheet 110 side, and covers the other end portion of the hook sheet 110 in the product width direction D _W .

The thickness of the hook sheet cover portion 141 and the hook sheet cover portion 142 is preferably thinner than the thickness of the bulkiness improving portion 120A and the bulkiness improving portion 130A. The thickness of the hook sheet cover portion 141 and the hook sheet cover portion 142 can be, for example, SB non-woven fabric 27 g/m ² . In the state in which the hook sheet cover portion 141 and the hook sheet cover portion 142 are bitten by the engagement hook 111, the thickness of the region where the hook sheet cover portion 141 and the hook sheet cover portion 142 exist, and the bulkiness improving portion 120A and the bulkiness are improved. The thickness of the region where the portion 130A exists is substantially the same.

Further, in the case of the buckle 100A, the stepped belt 100A of the region where the base sheet 105 and the bulkiness improving portion 120A or the bulkiness improving portion 130A exist, and the buckle 100A of the region where only the hook sheet 110 exists are larger than that shown in FIG. It is also possible that the section of the buckle 100 has a larger step. The loominess improving portion composed of the non-woven fabric softer than the hook sheet 110 covers the end portion of the hook sheet 110 in the product width direction D _W in order to make it difficult to feel uncomfortable feeling.

In addition, in the case of this modification, the step difference means: hook sheet The position of the surface of the 110, the distance from the surface position of the hook sheet cover portion 142 (the hook sheet cover portion 141) (d' in the drawing), the thickness of the base sheet 105 and the bulkiness improving portion 130, and the hook sheet 110 The difference in thickness is preferably 1.08 mm or less as shown in the examples to be described later. When the difference in thickness exceeds 1.08 mm, it is not preferable because the possibility of blocking the disposable disposable diaper of the buckle 100A is improved.

(3.2) Change 2

FIGS. 6(a) and 6(b) are enlarged views respectively showing the buckle 100B of the present modification and a cross-sectional view of the buckle 100B.

As shown in FIGS. 6(a) and 6(b), the buckle 100B is similar to the buckle 100A, and the bulkiness improving portion 120B and the bulkiness improving portion 130B each have a hook sheet cover portion 141A and a hook sheet cover portion 142A. The engaging hook 111 is not provided in the region of the buckle strip 100B in the hook sheet 110B covered by the hook sheet cover portion 141A and the hook sheet cover portion 142A.

According to such a configuration, the buckle 100 of the region where the base sheet 105 and the bulkiness improving portion 120B or the bulkiness improving portion 130B are present can be reduced as compared with the buckle 100A; and the step of the buckle 100 in the region where the hook sheet 110B exists can be reduced.

(3.3) Other changes

7(a) to 7(d) show other modified examples of the buckle. The buckle 100C shown in Fig. 7(a) includes a hook sheet cover 141C and a hook sheet cover 142C which are different from the bulkiness improving portion 120C and the bulkiness improving portion 130C. In the case of the bulkiness improving portion 120C and the bulkiness improving portion 130C, a 35 g/m ² ventilating nonwoven fabric (AT) which is expected to have an effect as a cushioning material is used. Further, in order to suppress the thickness of the hook sheet cover 141C and the hook sheet cover 142C, an SMS non-woven fabric of 15 g/m ² was used.

The buckle 100D shown in FIG. 7(b) is formed by integrally forming the base sheet 105A and the bulkiness improving portion 130D.

The buckle 100E shown in FIG. 7(c) has a configuration similar to that of the buckle 100D, but is a bulkiness improving portion 130E that is wound into a plane on the non-skin contact side of the base sheet 105.

The buckle tape 100F shown in FIG. 7(d) has a similar configuration, but the base material sheet 105F and the bulkiness improving portion 130F are formed using the same material (for example, two sheets of 30 g/m ² SB non-woven fabric). And the base material sheet 105F and the bulkiness improving part 130F are joined.

(4) Function and effect

Table 1 shows the results of comparative evaluation of the buckle. As shown in Table 1, tests were carried out on the buckles of Examples 1 to 5 and Comparative Examples 1 to 3.

As shown in Table 1, the fastener tapes of Examples 1 to 6 and Comparative Examples 1 to 4 were comparatively evaluated. In the test for comparative evaluation, the "stable sleep S size at night" manufactured by Youkumei Co., Ltd. was used, and the buckles of Examples 1 to 6 and the buckles of Comparative Examples 1 to 4 were sequentially replaced. The sample for the test was prepared by the method of disposable diapers.

In the evaluation test, since the person who feels the "different material (foreign matter) different in hardness from the diaper body" is targeted, the screening of the test subject is performed in advance, and the disposable use is used for general use. The buckle of the disposable diaper holds the above-mentioned impressioner as an object. Specifically, for the mother of the infants who have been bred for 2 months to 6 months, the 30 mothers who answered the question of whether the buckle is "different (foreign material) with the diaper body?" As a target, these mothers asked, "Is there any feeling of foreign body or discomfort for the feeling of the buckle?"

For the inquiry, the sample having a ratio of the number of persons in the following (1) or (2) exceeding 60% was good in sensory evaluation (tactile sensation) and evaluated as OK.

(1) No feeling of foreign body or discomfort at all

(2) I can hardly feel foreign body feeling and discomfort

(3) Can't tell

(4) A little sense of foreign body and discomfort

(5) Obviously feel foreign body feeling and discomfort

According to the results of the evaluation test, the step is preferably in the range of -0.28 to 0.46 mm. Further, the difference in thickness is preferably in the range of -0.28 mm to 1.08 mm. In addition, the difference in thickness is measured at the front end portion (the portion of "A" shown in the schematic diagram of Table 1) and the stuck portion (the portion of "B" shown in the pattern diagram of Table 1).

That is, according to the above-mentioned disposable disposable diaper 10 The buckles 100 and 100A to 100F are provided with a bulkiness improving portion adjacent to the hook sheet, and the bulkiness improving portion has a thickness that is flush with the hook sheet. In other words, since the surface of the bulkiness improving portion and the surface of the hook sheet are almost the same surface, even if the fastener tape is touched, the irritation and discomfort caused by the engaging hook 111 provided with the hook sheet are less likely to be felt. In other words, the thickness of the flatness improving portion and the hook sheet are not limited to the above-described range of the step, and the user does not feel a foreign body feeling or discomfort to the buckle portion. This step can be.

When the surface of the hook sheet side of the buckle is touched from the main body side of the disposable disposable diaper toward the front end portion so as to slide the finger portion, it is effective to set the above-mentioned "step difference" within a predetermined range. In addition, when the fluffiness improving portion and the hook sheet are caught and touched so as to sandwich the buckle in the thickness direction, it is effective to set the above-mentioned "difference in thickness" within a predetermined range. In particular, the touch method of sliding the finger from the main body side of the disposable disposable diaper toward the front end portion over the surface of the hook sheet side does not excessively press the body of the infant, and the so-called buckle is required to be engaged in the buckle. After the mother of the disposable disposable diaper aligns the buckle with the desired position of the target tape 60 of the disposable disposable diaper, the case where the buckle is engaged with the target tape 60 is remarkable.

Further, in the present embodiment, since the bulkiness improving portion is provided on both the outer side and the inner side of the product width direction D _{W of the} hook sheet, even when the buckle is gripped, even if the hook sheet is touched, it is more than the hook sheet. When it is located in the inner side of the product width direction D _W , it is not easy to feel the irritation and discomfort caused by the engagement hook 111.

Further, when the hook sheet cover portion having the end portion in the wide direction D _W of the product covering the hook sheet is provided, even if the end portion of the hook sheet is touched, the step difference between the hook sheet and the bulkiness improving portion is not easily felt. Further, it is further difficult to feel the irritation and discomfort caused by the engagement hook 111. Moreover, since the end portion in the width direction D _W of the product of the hook sheet is covered by the hook sheet cover portion, the warpage of the end portion can be prevented. Thereby, it is possible to further reduce the irritation and discomfort when the buckle is touched.

(5) Other embodiments

The above description of the present invention is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various forms, embodiments, and operational techniques are available instead.

For example, in the embodiment described above, although the portion to improve the bulkiness is provided in both of the hooks in the sheet width direction D _W article outward and inward, but the bulkiness improved hook portion may be provided only in the sheet width direction D _W article Outside.

As described above, the present invention naturally includes various embodiments and the like which are not described herein. Therefore, the technical scope of the present invention is determined only by the specific matters of the invention from the scope of the patent application described above.

100‧‧‧ buckle

130‧‧‧Bluffiness Improvement Department

111‧‧‧ snap hook

110‧‧‧ hook sheet

120‧‧‧Bluffiness Improvement Department

50‧‧‧Flanking

10‧‧‧Disposable disposable diapers

105‧‧‧Sheet sheet

70‧‧‧back sheet

100f‧‧‧Free end

100b‧‧‧ base end

Claims (8)

A disposable disposable diaper comprising: a longitudinally long absorbent body comprising a liquid retaining absorbent body, which is composed of a front waistline portion, a rear waistline portion and a crotch portion; the side flaps are provided At least a portion of a side edge portion of the absorbent body in a product width direction; and a buckle that is attached to the side flap, and a product width from one of the front waistline portion or the back waistline portion toward the absorbent body a disposable disposable diaper that is stretched outward in the width direction to form the other side of the front waistline portion or the rear waistline portion, wherein the buckle tape has a base material sheet; and a plurality of cards are provided a hooking piece that is fixed to the hook sheet of the base sheet, and includes a loft improving portion that is adjacent to the hook sheet on the outer side in the wide direction of the product of the hook sheet, and the hook sheet and the bulkiness improving portion are provided In the plane on the skin contact side of the base sheet, the bulkiness improving portion has such a thickness as that of the hook sheet. The disposable diaper according to claim 1, wherein the bulkiness improving portion is provided on the outer side in the width direction of the product of the hook sheet and the inner side in the product width direction. The disposable disposable diaper according to claim 1 or 2, wherein the bulkiness improving portion has substantially the same thickness as the hook sheet. The disposable diaper according to the first or second aspect of the invention, wherein the thickness of the disposable diaper is the same as the above-mentioned plane, and the area where the bulkiness improving portion exists and the hook sheet are present. The section difference of the area is below -0.28~0.46mm. The disposable diaper according to claim 1 or 2, wherein the width of the product of the bulkiness improving portion is substantially the same as or larger than the width of the hook sheet. Wider. The disposable disposable diaper according to the first or second aspect of the invention, further comprising a wide width direction of the product covering the hook sheet from the side of the hooking portion The hook sheet cover portion at the end portion has a thickness of the hook sheet cover portion that is thinner than the thickness of the bulkiness improving portion. The disposable disposable diaper according to claim 6, wherein the engaging hook is not provided in a region of the hook sheet covered by the hook sheet cover portion. The disposable disposable diaper according to the first or second aspect of the invention, wherein the KES bending rigidity value of the product of the fastener tape in the region where the hook sheet is provided is 1.64 gf ‧ cm ² /cm below.