JP2017113478A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article capable of further relaxing an affection which is applied to a skin of an infant by an engagement hook of a fastening tape, and preventing the fastening tape from being expanded naturally without intention.SOLUTION: An absorbent article comprises a front girth area, a rear girth area, and a fastening tape 90 for fastening the front girth area and the rear girth area. The fastening tape 90 comprises an engagement sheet capable of engaging to at least one of the front girth area and the rear girth area. The fastening tape 90 is folded in an expandable state. In a state in which the fastening tape 90 is folded, a first area 92a of the engagement sheet faces a second area 92b of the engagement sheet. The fastening tape 90 has a temporary fastening part 200 for temporarily fastening in the folded state.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an absorbent article provided with a fastening tape having an engagement hook.

  Patent document 1 is disclosing the tape-type disposable diaper provided with the fastening tape which fastens the front waist area and the back waist area at the time of mounting | wearing. In the disposable diaper described in Patent Document 1, the fastening tape is fixed to the side flap of the back body of the disposable diaper and is fastened to the target sheet of the front body. The side flap is configured by overlapping a top sheet and a back sheet. Before the fastening tape is used, the fastening tape is accommodated between the top sheet and the back sheet in the side flap. The fastening tape tip protrudes from the side flap. By pulling the front end of the fastening tape, the fastening tape is unfolded and pulled out from the side flap.

  3 and 4 of Patent Document 1 describe a fastening tape that is folded in three and has a substantially Z-shaped appearance. The fastening tape can be extended by opening the three-fold fold overlapping portion. The male material of the fastening tape is formed on any one of the four surfaces folded and overlapped.

JP 2003-275246 A

  For example, when causing an infant to wear an absorbent article such as a disposable diaper, there is a growing awareness that it is desirable to eliminate the burden on the skin of the infant or to reduce the burden as much as possible. Since the tip of the male material (hook) of the fastening tape may irritate the infant's skin, it may be perceived as a foreign object by the user.

  Therefore, at least when the fastening tape is not used, it is desired to reduce the influence of the tip of the engagement hook on human skin, particularly infants' skin.

  An absorbent article according to an aspect includes a front waistline region, a back waistline region, and a fastening tape that fastens the front waistline region and the back waistline region, and the fastening tape includes: An engagement sheet that is engageable with at least one of the front waistline area and the back waistline area, the fastening tape is folded in a deployable manner, and the engagement tape is folded when the fastening tape is folded. The first region of the sheet faces the second region of the engagement sheet, and the fastening tape has a temporary fixing portion for temporarily fixing in a folded state.

  ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which can relieve | moderate more the influence which the engagement hook of a fastening tape has on the infant's skin can be provided. Moreover, according to this invention, it can prevent that a fastening tape unintentionally expand | deploys naturally.

FIG. 1 is a plan view of a disposable diaper according to an embodiment. FIG. 2 is a cross-sectional view of the disposable diaper along the line F1-F1 shown in FIG. FIG. 3 is an enlarged view of the fastening tape in a folded state. FIG. 4 is an enlarged view of the fastening tape in a developed state. FIG. 5 is a cross-sectional view taken along line F2-F2 shown in FIG. 6 is a cross-sectional view taken along line F3-F3 shown in FIG. FIG. 7 is an enlarged cross-sectional view of the folded fastening tape according to the first embodiment. FIG. 8 is an enlarged cross-sectional view of the folded fastening tape according to the second embodiment. FIG. 9 is an enlarged cross-sectional view of the folded fastening tape according to the third embodiment. FIG. 10 is an enlarged cross-sectional view of a folded fastening tape according to the fourth embodiment. FIG. 11 is an enlarged cross-sectional view of a folded fastening tape according to the fifth embodiment. FIG. 12 is a schematic diagram illustrating a state in which the fastening tape according to the first embodiment is developed. FIG. 13 is a schematic diagram showing a state where the fastening tape according to the third embodiment is developed.

  Next, an embodiment of an absorbent article will be described with reference to the drawings. In the following embodiments, a disposable diaper will be described as an example of the absorbent article. However, the absorbent article of the present invention is not limited to disposable diapers.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions may be different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) Schematic overall configuration of disposable diaper FIG. 1 is a developed plan view of a disposable diaper 10 according to an embodiment. FIG. 2 is a cross-sectional view of the disposable diaper 10 taken along the line F1-F1 shown in FIG. The developed view shown in FIG. 1 is a diagram showing a state in which the elastic members of the leg stretchable part 75 and the legside stretchable part 80 are stretched until the wrinkles of the top sheet 50, the side flap 70, etc. constituting the disposable diaper are eliminated. .

  The disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30. The front waistline region 20 is a part in contact with the wearer's front waistline part (abdominal part). Moreover, the back waist area 30 is a part which contact | connects a wearer's back waist part (back part). The crotch region 25 is located between the front waistline region 20 and the back waistline region 30.

  The disposable diaper 10 has a pair of leg openings 35. The leg opening 35 is provided on the outer edge in the width direction W of the disposable diaper. The leg opening part 35 is a part arrange | positioned along a wearer's leg periphery in the state with which the disposable diaper 10 was worn by the wearer.

  In the present embodiment, a direction from the front waistline region 20 toward the back waistline region 30 is referred to as a longitudinal direction L. A direction orthogonal to the longitudinal direction L is referred to as a width direction W.

  The disposable diaper 10 and the absorber 40 are included. The absorber 40 may have an absorption core 40a and a core wrap 40b. The absorption core 40a is provided at least in the crotch region 25. The absorbent core 40 a may extend from the crotch region 25 toward at least one of the front waistline region 20 and the back waistline region 30.

  The absorbent core 40a can be appropriately configured using a material such as pulverized pulp or a superabsorbent polymer. The absorbent core 40a may be wrapped with a sheet-like core wrap 40b.

  The disposable diaper 10 may include a top sheet 50, a back sheet 60a, and an exterior sheet 60. The top sheet 50 is provided on the surface side (skin facing surface side) of the absorber 40. The top sheet 50 may have liquid permeability. The back sheet 60a is provided on the back surface side (non-skin facing surface side) of the absorber 40. The backsheet 60a may have liquid impermeability. The exterior sheet 60 is provided on the back side of the back sheet 60a.

  The disposable diaper 10 may have side flaps 70 on both outer edges of the absorbent body 40 in the width direction W. The side flaps 70 extend from the front waistline region 20 to the back waistline region 30 in the longitudinal direction L. The side flap 70 is disposed outside the absorber 40 in the width direction W. The side flap 70 is comprised by the nonwoven fabric on which 1 sheet or multiple sheets were piled up. The side flap 70 may be located on the skin facing surface side with respect to the absorbent core 40a, and may extend outward in the width direction W with respect to the absorbent core 40a. The inner edge (the inner end in the width direction W) of the side flap 70 may cover a part of the absorbent core 40a. The outer edge of the side flap 70 may be disposed outside the absorbent core 40a in the width direction W.

  The side flap 70 may be provided with a pair of leg stretchable portions 75 that are disposed on the inner side in the width direction W than the leg opening portion 35 and can be stretched in the longitudinal direction L. The leg expansion / contraction part 75 should just be comprised so that the leg opening part 35 can be expanded-contracted in a longitudinal direction. A pair of leg side stretchable parts 80 extending along the longitudinal direction L may be provided inside the width direction W of the pair of leg stretchable parts 75. The leg side stretchable part 80 is provided at the inner end of the side flap 70 in the width direction W. The leg side stretchable part 80 may constitute a standing stretchable gather.

  The disposable diaper 10 includes a pair of fastening tapes 90. The fastening tape 90 has a joint portion 94 a that is joined to either the front waistline region 20 or the back waistline region 30. In the present embodiment, the fastening tape 90 is joined to the rear waistline region 30. The fastening tape 90 fastens the front waistline region 20 and the back waistline region 30. The fastening tape 90 holds the disposable diaper 10 on the wearer's body by fastening the front waistline region 20 and the back waistline region 30 to each other. The target portion 900 is provided on the non-skin facing surface of the exterior sheet 60 in the front waistline region 20 or the back waistline region 30. The target portion 900 is configured so that the fastening tape 90 is caught. As the target unit 900, for example, an air-through nonwoven fabric can be used.

  Two target portions 900 may be provided in the width direction W so as to be separated from each other. This makes it easier for the user to visually recognize which target portion 900 should be engaged with one fastening tape 90.

  In addition, the disposable diaper 10 does not need to have the target part 900. FIG. In this case, the fastening tape 90 should just be comprised so that it can be directly fixed to the exterior sheet | seat 60 of the front waist area 20 or the back waist area 30. FIG.

  Between the pair of fastening tapes 90 in the width direction W, a waist circumference stretchable portion 85 that can be stretched in the width direction W may be provided. The waist elastic part 85 contracts the region between the fastening tapes 90 in the width direction W. The waist circumference elastic part 85 may be comprised with the elastic sheet.

  The rear end edge of the waist elastic part 85 may be located in front of the rear end edge of the disposable diaper 10. Instead, the rear end edge of the waist elastic part 85 may coincide with the rear end edge of the disposable diaper 10. The front edge of the waist elastic part 85 is located in front of the rear edge of the absorbent core 40a, in front of the rear edge of the core wrap 40b, and in the rear of the rear edge of the leg elastic part 75. Good. Therefore, at least a part of the waist elastic part 85 may overlap the absorbent core 40a in a plan view of the disposable diaper. Thereby, when a user pulls a pair of fastening tape 90 to the width direction W outer side, the rear-end part of the absorber 40 is pulled to the width direction outer side. In this state, by fastening the fastening tape 90 to the target unit 900, the absorber 40 is likely to have a shape that fits the body according to the roundness of the wearer's body.

  The waist elastic part 85 may straddle the rear end edge of the absorbent core 40a and the rear end edge of the core wrap 40b, and may extend to the rear side of the rear end edge of the absorbent core 40a and the core wrap 40b. The outer edge of the waist elastic part 85 may be located on the inner side in the width direction than the inner edge (the inner end in the width direction W) of the fastening tape 90. The waist elastic part 85 and the fastening tape 90 are separated in the width direction W. Instead, the waist elastic part 85 and the fastening tape 90 may overlap with each other in the width direction W without being separated from each other.

  The waist elastic part 85 exists between a virtual line 40e obtained by extending the side edge of the absorbent core 40a in the width direction W in the longitudinal direction L and the joint part 94a. But the waist elastic part 85 may exist in the width direction inner side rather than the virtual line 40e. Of the front waistline region 20 and the back waistline region 30, the waist region to which the fastening tape 90 is joined has non-stretchability in the region between the joint portion 94a and the engagement sheet 92. Is preferred.

(2) Configuration of Fastening Tape Hereinafter, the configuration of the fastening tape 90 will be described. The fastening tape 90 may be provided at the end of the rear waistline region 30 in the width direction W. Specifically, the fastening tape 90 may be attached to a region of the side flap 70 corresponding to the rear waistline region 30. Instead of this embodiment, the fastening tape 90 may be provided in the front waistline region 20. In this case, the fastening tape 90 may be configured to be fixed to a target portion or an exterior sheet provided in the rear front waistline region 30.

  The fastening tape 90 is folded so as to be unfoldable before use. FIG. 3 shows the folded fastening tape 90. FIG. 4 shows the developed fastening tape 90. FIG. 5 is a cross-sectional view of the folded fastening tape 90 taken along line F2-F2 of FIG. 6 is a cross-sectional view of the developed fastening tape 90 taken along line F3-F3 of FIG. As shown in FIGS. 3 and 5, the fastening tape 90 is folded so as to be deployable with at least one first fold 95 as a base point. The fastening tape 90 may be folded so that the first fold 95 and the second fold 96 are the starting points.

  The fastening tape 90 includes a base material 91 and an engagement sheet 92. The engagement sheet 92 is bonded to the base material 91 via an adhesive. The engagement sheet 92 can be engaged with at least one of the front waistline region 20 and the back waistline region 30. Specifically, one surface (engagement surface) of the engagement sheet 92 is provided with engagement hooks 99 as a plurality of engagement members that can be engaged with the front waistline region 20 or the back waistline region 30. (See also FIG. 7).

  The substrate 91 extends from the free end 93 to the fixed end 94. The fixed end portion 94 of the base material 91 is fixed to the side flap 70. The free end 93 of the base material 91, that is, the free end of the fastening tape 90 is a portion that is gripped by the user when the fastening tape 90 is unfolded. The free end 93 of the substrate 91 may be composed of one or a plurality of nonwoven fabrics. Preferably, the whole base material 91 is comprised from the nonwoven fabric of 1 sheet or several sheets. Preferably, the base material 91 is composed of a plurality of non-woven fabrics, and the plurality of non-woven fabrics are preferably joined at joint portions that are continuous in the longitudinal direction L. Since the fastening tape 90 is drawn out and used toward the outer side in the width direction of the absorbent article, the first fold 95 and the non-woven fabric are joined to each other at a joint continuous in the longitudinal direction L. It is possible to provide the flexible fastening tape 90 while stably providing the second fold 96 and maintaining the strength when the fastening tape 90 is pulled. It should be noted that, for example, it is possible to obtain higher flexibility by configuring two non-woven fabrics having a basis weight of half of the basis weight, rather than configuring the nonwoven fabric with one basis weight. .

  The fastening tape 90 is folded based on a first fold 95 along the longitudinal direction L from the front waistline region 20 to the back waistline region 30. The fastening tape 90 is further folded based on a second fold 96 parallel to the first fold 95 (see FIGS. 2 and 5). The second fold 96 is positioned on the inner side in the width direction W than the first fold 95 in a state where the fastening tape 90 is unfolded (see FIGS. 5 and 6). In a state where the fastening tape 90 is folded, the free end portion 93 of the base material 91 extends outward in the width direction W. The second fold 96 is provided between the first region 92 a and the fixed end portion 94. The fastening tape 90 is folded so that the fixed end portion 94 and the free end portion 93 are directed in opposite directions so that the first fold 95 and the second fold 96 can be developed.

  The rear waistline region 20 includes a housing portion 72 that houses at least a region of the fastening tape 90 in a folded state where the engagement sheet 92 exists. The accommodating part 72 may be formed by the space between the side sheet and the exterior sheet that form the side flap 70. Preferably, the fastening tape 90 is accommodated in the accommodating portion 72 except for the free end portion 93 in a folded state. In this case, only the free end portion 93 of the fastening tape 90 protrudes from the housing portion 72 to the outside. Thereby, the fastening tape 90 can be concealed and only the nonwoven fabric among the elements constituting the absorbent article can be exposed to the surface of the absorbent article. Therefore, it is possible to provide an absorbent article that does not give the user a foreign object feeling.

  The fixed end portion 94 of the base material 91 may be joined to a sheet constituting the rear waistline region 30. The fastening tape 90 may be fixed to a skin surface side sheet (a side flap 70 in the present embodiment) of the pair of sheets 50 and 60 forming the housing portion 72. In this case, the fastening tape 90 is folded to the opposite side to the skin side sheet. In a state where the fastening tape 90 is deployed, the engagement surface of the engagement sheet 92 faces the skin surface side.

  The engagement sheet 92 may not be provided on the folds 95 and 96 where the fastening tape 90 is bent (see FIGS. 4 and 6). Thereby, the state which bent fastening tape 90 can be maintained stably. In particular, since the folds 95 and 96 are located in a region where the engagement hook 99 of the engagement sheet 92 is not present, that is, a region having relatively low rigidity, the fastening tape 90 is easily stabilized in a folded shape. Thereby, the shape of a fastening tape becomes difficult to be impaired before use of an absorbent article. Further, since the folds 95 and 96 do not pass over the engagement sheet 92, the fastening tape 90 can be easily folded when the fastening tape 90 is manufactured.

  Instead of the above embodiment, the engagement sheet 92 may be provided on the fold lines 95 and 96 where the fastening tape 90 is bent. As a specific example, the engagement sheet 92 may extend to both sides of the first fold 95 across the first fold 95. In this case, the plurality of joint portions between the base material 91 and the engagement sheet extend in the longitudinal direction L of the absorbent article and are separated from each other in the width direction W, and between the joint portions. It is preferable that the non-joining portion is in a position overlapping the first fold 95. Thereby, the 1st crease | fold 95 can be formed more stably.

  FIG. 7 is an enlarged cross-sectional view of the folded fastening tape according to the first embodiment. The engagement sheet 92 is disposed between the first fold line 95 and the second fold line 96, and has a first region 92 a having a plurality of engagement hooks 99 protruding from the engagement sheet 92, and freer than the first fold line 95. And a second region 92b having a plurality of engagement hooks 99 disposed on the end 93 side and projecting from the engagement sheet.

  In a state where the fastening tape 90 is folded, the first region 92a of the engagement sheet faces the second region 92b of the engagement sheet. It is preferable that all the engagement hooks 99 protruding from the engagement sheet in the first region 92a face the engagement sheet in the second region 92b. Furthermore, it is preferable that all of the engagement hooks 99 protruding from the engagement sheet in the second region 92b face the engagement sheet in the first region 92a. In particular, when the fastening tape 90 is folded, the engagement hook 99 exists only between the first fold 95 and the second fold 96, and the engagement hook 99 is located outside the second fold 96 in the width direction W. Is preferably absent. Thereby, in the state in which the fastening tape 90 was folded, since all the engagement hooks 99 are not exposed, the influence which the engagement hooks 99 have on the skin of a person, especially infants, can be suppressed.

  The adhesive that bonds the engagement sheet 92 to the base material 91 constitutes the first adhesive region 100 and the second adhesive region 102. The first adhesion region 100 is a region where the first region 92 a of the engagement sheet 92 is adhered to the base material 91. The second adhesion region 102 is a region where the second region 92 b of the engagement sheet 92 is adhered to the base material 91.

  In the state where the fastening tape 90 is folded, the first side edge 100e of the first adhesive region 100 far from the first fold 95 is the engagement of the first region 92a adjacent to the engagement hook 99 in the second region 92b. The position of the engagement hook 99ae (hereinafter sometimes referred to as “first reference hook 99ae”) farthest from the first fold 95 of the combined hook 99 has been reached. Further, in the state where the fastening tape 90 is folded, the second side edge 102e farther from the first fold 95 of the second adhesive region 102 is adjacent to the first fold 95 side of the first reference hook 99ae. The position of the engagement hook 99be (hereinafter, may be referred to as “second reference hook 99be”) in the second region 92b is reached.

  The position of the side edge closer to the first fold 95 of the first adhesion region 100 is arbitrary, but may reach the engagement hook closest to the first fold 95 of the first region 92a. The position of the side edge of the second adhesive region 102 closer to the first fold 95 is arbitrary, but may reach the engagement hook closest to the first fold 95 of the second region 92b.

  As shown in FIG. 7, the fastening tape 90 has a temporary fixing portion 200 for temporarily fixing in a folded state. The temporary fixing part 200 can be comprised from the adhesive agent which can be peeled. Preferably, the temporary fix | stop part 200 is comprised with the adhesive agent which can peel and cannot be re-adhered. Instead, the temporary fixing part 200 may be constituted by an embossed part obtained by thermocompression bonding of the folded fastening tape 90.

  In the embodiment shown in FIG. 7, the temporary fixing portion 200 is provided in a region where the base materials 91 are directly opposed to each other in a state where the fastening tape 90 is folded. When the fastening tape 90 is folded, the temporary fixing portion 200 is more disengaged from the first fold 95 than the region where the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other. It is provided in a distant area. More specifically, the temporary fixing part 200 joins the base materials 91 near the second fold 96.

  In a state where the fastening tape 90 is folded, the engagement hooks of the first region 92a and the engagement hooks of the second region 92b may be engaged with each other. In this case, the maximum diameter of the engagement hooks in the first region 92a is larger than the distance between the engagement hooks in the second region 92b, and the maximum diameter of the engagement hooks in the second region 92b is the engagement in the first region 92a. It may be larger than the distance between the hooks.

  When the free end portion 93 of the fastening tape 90 is pulled in the width direction W, the peel strength of the temporary fixing portion 200 releases the engagement between the first region 92a of the engagement sheet and the second region 92b of the engagement sheet. It is preferably smaller than the peel strength.

  Instead of the embodiment shown in FIG. 7, the temporary fixing portion 200 is provided in a region overlapping with the engagement region in which the engagement hook in the first region 92 and the engagement hook in the second region are engaged with each other. Also good.

  FIG. 8 is an enlarged cross-sectional view of a folded fastening tape according to the second embodiment. As shown in FIG. 8, the fastening tape 90 has a temporary fixing part 200 for temporarily fixing in a folded state. The temporary fixing part 200 may be configured by a peelable adhesive, preferably a peelable and non-rebondable adhesive.

  The temporary fixing portion 200 is provided in a region overlapping with an engagement region in which the engagement hook in the first region 92 and the engagement hook in the second region are engaged with each other. More specifically, the temporary fix | stop part 200 is comprised from the adhesive material provided in at least one of the engagement hook of the 1st area | region 92a, and the engagement hook of the 2nd area | region 92b. Note that the engagement hooks of the first region 92a and the engagement hooks of the second region 92b may be mechanically engaged with each other or may not be mechanically engaged with each other.

  The width of the adhesive provided on the engagement hook 99 is preferably smaller than the diameter of the tip of the engagement hook. The width of the adhesive provided on the engagement hook 99 may be larger than the diameter of the front end portion of the engagement hook.

  FIG. 9 is an enlarged cross-sectional view of a folded fastening tape according to the third embodiment. The fastening tape 90 has a temporary fixing part 200 for temporarily fixing in a folded state. The temporary fixing portion 200 is provided in a region where the base materials 91 directly face each other in a state where the fastening tape 90 is folded. When the fastening tape 90 is folded, the temporary fixing portion 200 is closer to the first fold 95 than the region where the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other. It is provided in a close area.

  In the third embodiment, the diameter of the tip 99b of the engagement hook 99 is larger than the diameter of the root 99a of the engagement hook. The tip 99b of the engagement hook 99 of at least one of the first region 92a and the second region 92b is biased toward the free end 93 in a state where the fastening tape 90 is unfolded. The distal end portions 99b of the engaging hooks 99 in both the first region 92a and the second region 92b may be biased toward the free end portion 93 in a state where the fastening tape 90 is deployed. Specifically, the front end portion 99b of the engaging hook protrudes more toward the free end portion 93 side than the fixed end portion 94 side in a state where the fastening tape 90 is unfolded. Instead, the shape of the engagement hook may be that shown in the first embodiment.

  FIG. 10 is an enlarged cross-sectional view of a folded fastening tape according to the fourth embodiment. In the present embodiment, in the state where the fastening tape 90 is folded, the edge 92ae farther from the first fold 95 of the engagement sheet in the first region 92a is the first fold of the engagement sheet in the second region 92b. It is located farther from the first fold 95 than the edge 92be far from 95. Even in this case, in the state where the fastening tape 90 is folded, the first side edge 100e of the first adhesive region 100 farther from the first fold 95 is the first fold 95 than the first reference hook 99ae. Located far from. Preferably, in a state where the fastening tape 90 is folded, the first side edge 100e of the first adhesive region 100 is farther from the first fold 95 than the end portion 92be far from the first fold 95 of the second region 92b. Located in. Preferably, the first adhesive region 100 does not reach the edge 92ae farther from the first fold 95 of the engaging sheet in the first region 92a. Thereby, it can suppress that the adhesive agent of the 1st adhesion area | region 100 protrudes from an engagement sheet | seat. Therefore, it is possible to prevent the fastening tape 90 from being bonded in a folded state by the adhesive protruding from the adhesive in the first adhesive region 100, and to provide the fastening tape 90 that can be easily deployed. be able to.

  The distance between the edge 92ae farther from the first fold 95 of the engagement sheet in the first region 92 and the first reference hook 99ae is preferably 0.5 mm or more, more preferably 0.8 mm or more. . Thereby, even after a fastening tape is crimped | bonded, it can suppress that the adhesive agent of the 1st adhesion area | region 100 protrudes from an engagement sheet. By preventing the adhesive from protruding, troubles on the skin of the user who handles the absorbent article can be suppressed. The area between the edge 92ae farther from the first fold 95 and the first reference hook 99ae in the engagement sheet of the first area 92 is preferably 3 mm or less, more preferably 1 mm or less. Thus, by shortening the length of the non-adhesion region in the vicinity of the edge 92 ae far from the first fold 95 of the engagement sheet, the engagement sheet 92 can be prevented from greatly floating from the base material 91. Thereby, it can suppress that the edge 92ae of the engagement sheet | seat 92 contacts the skin of the user who handles the fastening tape 90 suddenly.

  FIG. 11 is an enlarged cross-sectional view of a folded fastening tape according to the fifth embodiment. The temporary fixing portion 200 is configured by an adhesive that continuously extends from the first adhesion region 100 and protrudes from the engagement sheet 92. Instead, the temporary fixing part 200 may be configured by an adhesive that continuously extends from the second adhesion region 102 and protrudes from the engagement sheet 92.

(3) Deployment of Fastening Tape FIGS. 12 and 13 are schematic views showing a state where the fastening tape 90 according to the first embodiment and the third embodiment is deployed, respectively. In a state where the fastening tape 90 is folded, the first side edge 100e of the first adhesive region 100 reaches the position of the first reference hook 99ae, and the second side edge 102e of the second adhesive region 102 is the second reference hook. Preferably, the position reaches 99be. As shown in FIGS. 12 and 13, when the free end portion 93 of the base material 91 is pulled outward in the width direction W, the first region 92a of the engagement sheet moves toward the arrow F2 in the drawing, and the engagement sheet The second region 92b moves toward the arrow F1 in the figure. Thereby, the temporary fix | stop part 200 peels.

  When the free end portion 93 of the base material 91 is pulled further outward in the width direction W, the end region farther from the first fold 95 of the engagement sheet 92 in the first region 92a is passed through the adhesive 100. It is pulled by 91 and is bent upwards in FIG. Accordingly, as shown in FIG. 12, the first reference hook 99ae is dragged by the curve of the engagement sheet 92 and is inclined in a direction away from the second reference hook 99be of the engagement sheet in the second region 92b. As a result, the engagement between the first reference hook 99ae and the second reference hook 99be is smoothly released. When the free end portion 93 of the substrate 91 is further pulled, the engagement between the engagement hooks 99 closer to the first fold 95 than the first reference hook 99ae and the second reference hook 99be is smoothly released. Therefore, the fastening tape 90 can be easily developed by setting the positions of the adhesives 100 and 102 as described above.

  In this embodiment, a wear assistant (for example, a parent) can more easily carry out the work of attaching the absorbent article to the wearer (such as a baby). Specifically, the wear assistant first lays the absorbent article under the wearer's body, and then applies the front waistline region of the absorbent article to the stomach side of the wearer. Thereafter, the wearing assistant has a free end portion 93 of the fastening tape 90 that protrudes outward in the width direction from the rear waist region of the absorbent article. Then, the wearing assistant pulls the free end portion 93 toward the outer side in the width direction of the absorbent article. Since the fastening tape 90 is deployed at the same time that the wearing assistant pulls the fastening tape 90, the wearing assistant can fasten the fastening tape 90 to the front waistline region while holding the fastening tape 90.

  Here, in a normal commercially available disposable diaper, the fastening tape is folded so that the gripping portion (free end portion) of the fastening tape is directed toward the center in the width direction. Therefore, before laying the absorbent article under the wearer's body or before applying the front waist area of the absorbent article to the wearer's abdomen, the wear assistant needs to unfold the fastening tape. . After deployment of the fastening tape, the front waist area of the disposable diaper is applied to the wearer's ventral side. At this time, since the fastening tape is unfolded, the fastening hook of the fastening tape is unintentionally engaged with the material constituting the absorbent article and the wearer's clothes, or hits the wearer's skin. There are times when it falls.

  In the absorbent article according to the present embodiment, as described above, the wear assistant can perform a series of operations from deployment of the fastening tape to fastening of the fastening tape while holding the fastening tape. The above inconvenience can be solved.

  In the embodiment shown in FIG. 10, in the state where the fastening tape 90 is folded, the first side edge 100e of the first adhesive region 100 is farther from the first fold 95 of the engagement sheet of the second region 92b. It is located farther from the first fold 95 than the edge 92ae. Accordingly, as shown in FIGS. 12 and 13, when the free end portion 93 of the fastening tape 90 is pulled, the first region 92a of the engagement sheet is located outside the region where the engagement hooks 99 are engaged with each other. Begins to be pulled by the base material 91 through the adhesive 100. Therefore, the engagement between the engagement hooks 99 can be released more smoothly.

(4) Action / Effect The absorbent article according to the embodiment includes a front waistline region 20, a back waistline region 30, and a fastening tape 90 that fastens the front waistline region 20 and the back waistline region 30. Have. The fastening tape 90 includes an engagement sheet 92 that can be engaged with at least one of the front waistline region 20 and the back waistline region 30. The fastening tape 90 is folded so as to be unfoldable. In a state where the fastening tape 90 is folded, the first region 92a of the engagement sheet faces the second region 92b of the engagement sheet. The fastening tape 90 has a temporary fixing part 200 for temporarily fixing in a folded state. In the present embodiment, since the first region 92a of the engagement sheet faces the second region 92b of the engagement sheet in a state where the fastening tape 90 is folded, at least a part of the engagement hook 99, preferably the engagement All the mating hooks 99 protrude toward the engagement sheet 92. Thereby, at least a part of the engagement hook 99 is covered with the engagement sheet having relatively high rigidity. Thereby, the influence which the engagement hook 99 has on the skin of a person, especially infants, can be relieved.

  Further, the engagement sheet 92 is covered with the base material 91 in a state where the fastening tape 90 is folded. Thereby, the sense of incongruity and anxiety given to the user visually can be reduced. Note that the engagement sheet 92 may be covered with the side flap 70 and the exterior sheet 60 in a state where the fastening tape 90 is folded. In this case, the sense of incongruity and anxiety visually given to the user can be further reduced.

  Here, when the folded fastening tape 90 has been unfolded naturally, the engagement sheet 92 of the fastening tape 90 may be unintentionally fixed to other parts of the absorbent article. In addition, when an infant is placed on an absorbent article such as a disposable diaper, the engagement sheet 92 of the fastening tape 90 that is unintentionally deployed naturally may irritate the infant's skin. In this embodiment, since the fastening tape 90 has the temporary fix | stop part 200 for temporarily fixing in the folded state, it can suppress that the fastening tape 90 is unintentionally developed naturally.

  According to one embodiment, the temporary fixing portion 200 is provided in a region where the base materials 91 are directly opposed to each other in a state where the fastening tape 90 is folded (see FIGS. 7, 9, 10, and 11). At the place where the first area 92a of the engagement sheet faces the second area 92b of the engagement sheet, the engagement sheets of the second area 92b of the first area 92a are engaged with each other, so that the fastening tape 90 is folded. Easy to maintain. In this embodiment, the temporary fix | stop part 200 is provided in the area | region where the base materials 91 directly oppose, ie, the area | region where the folded fastening tape 90 is easy to open naturally. Therefore, it can suppress more that the fastening tape 90 is unintentionally developed naturally.

  According to one embodiment, the first region 92a and the second region 92b of the engagement sheet have a plurality of engagement hooks 99 protruding from the engagement sheet. With the fastening tape 90 folded, the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other. With the fastening tape 90 folded, the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other. Can be suppressed.

  According to one embodiment, the fastening tape 90 includes a base material 91 that extends from the fixed end portion 94 along the free end portion 93, and an engagement sheet 92 that is bonded to the base material 91. The fastening tape 90 has a first fold 95 and a second fold 96 for folding in a deployable manner so that the fixed end 94 and the free end 93 face in opposite directions. In a state where the fastening tape 90 is unfolded, the first fold 95 is provided closer to the free end 93 than the second fold 96. The first region 92 a of the engagement sheet is disposed between the first fold 95 and the second fold 96. The second region 92 b of the engagement sheet is disposed on the free end 93 side of the first fold 95. Thus, the fastening tape 90 is folded in three with the first region 92a and the second region 92b of the engagement sheet facing each other. Furthermore, the fastening tape 90 is unfolded by pulling in the direction from the fixed end 94 to the free end 93 (see FIG. 12).

  According to one embodiment, the temporary fixing portion 200 is formed from a region where the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other when the fastening tape 90 is folded. Is also provided in a region far from the first fold 95 (see FIGS. 7, 10 and 11). Since the temporary fixing portion 200 is arranged so as to be displaced from the region (engagement region) where the engagement hooks are engaged with each other, the force for pulling the fastening tape 90 is independent of the temporary fixing portion 200 and the engagement region. Easy to take. Thereby, compared with the case where the temporary fix | stop part 200 and the engagement area | region overlap, the fastening tape 90 can be expand | deployed with comparatively small force.

  According to one embodiment, the temporary fixing part 200 is provided in a region overlapping with an engagement region in which the engagement hook of the first region 92a and the engagement hook of the second region 92b are engaged with each other. When the free end portion 93 of the fastening tape 90 is pulled, the temporary fixing portion 200 acts to pull the engaging region in the opposite direction. Thereby, it is possible to apply a force that peels off both the engaging region of the fastening tape 90 and the temporary fixing portion 200, and it is easy to release the temporary fixing portion 200 and unfold the engaging hook at the same time.

  According to one embodiment, in a state where the fastening tape 90 is folded, the first region 92a of the engagement sheet is engaged with the second region 92b of the engagement sheet, and the temporary fixing portion along the width direction W The peel strength 200 is smaller than the peel strength for releasing the engagement between the first region 92a of the engagement sheet and the second region 92b of the engagement sheet. When the free end portion 93 of the fastening tape 90 is pulled, the temporary fixing portion 200 is peeled off before the engagement of the engagement sheet 92. Therefore, when the fastening tape 90 is unfolded, the temporary fixing portion 200 is surely secured. It will be in the state peeled. Thereby, it is possible to suppress the force necessary for developing the fastening tape 90 from becoming excessively large without the temporary fixing portion 200 remaining adhered.

  According to one embodiment, the temporary fixing part 200 is configured by an adhesive provided on at least one of the engagement hooks of the first region 92a and the engagement hooks of the second region 92b (see FIG. 8). Thereby, it can suppress that the area | region of the engagement sheet | seat 92 of the folded fastening tape 90 is expand | deployed unintentionally.

  According to one embodiment, the width of the adhesive provided on the engagement hook 99 is smaller than the diameter of the front end portion of the engagement hook (see FIG. 8). When the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are mechanically engaged with each other, the engagement sheet is expanded by reducing the amount of adhesive adhering to the engagement hook. It can suppress that the force for doing becomes large too much.

  According to one embodiment, the maximum diameter of the engagement hooks in the first region 92a is greater than the distance between the engagement hooks in the second region 92b, and the maximum diameter of the engagement hooks in the second region 92b is It is larger than the distance between the engagement hooks in the region 92a. With the fastening tape 90 folded, the engagement hooks of the first region 92a and the engagement hooks of the second region 92b are engaged with each other. Since the engagement hook of the first region 92a and the engagement hook of the second region 92b are engaged with each other in a state in which the fastening tape 90 is folded, it is possible to prevent the fastening tape 90 from being unintentionally expanded. be able to.

  According to one embodiment, the temporary fixing part 200 is configured by a peelable adhesive. Since the temporary fixing portion 200 is formed of, for example, a peelable adhesive instead of thermocompression bonding (embossing), the possibility that the engagement hook 99 is crushed when temporarily fastening the fastening tape 90 can be reduced. . In particular, even when the temporary fixing portion 200 is provided in a region overlapping with the engagement sheet 92, the engagement hook 99 can be prevented from being crushed.

  According to one embodiment, the temporary fixing part 200 is configured by an adhesive that can be peeled off and cannot be reattached. Since the adhesive cannot be re-adhered once the fastening tape 90 is deployed, the adhesive is prevented from unintentionally adhering to other areas of the absorbent article when the user is handling the absorbent article. The

  According to one embodiment, the first adhesive region 100 in which the first region 92a of the engagement sheet is adhered to the base material 91, and the second adhesive region in which the second region 92b of the engagement sheet is adhered to the base material 91. 102. The temporary fixing part 200 is configured by an adhesive that continuously extends from the first adhesive region 100 or the second adhesive region 102 and protrudes from the engagement sheet 92 (see FIG. 11). Thereby, the adhesive which adhere | attaches the base material 91 and the engagement sheet | seat 92 can be utilized as the temporary fix | stop part 200. FIG. Therefore, the manufacturing process of the fastening tape 90 can be simplified.

  According to one embodiment, the front waistline region 20 or the back waistline region 30 includes a storage portion 72 that stores at least a region of the fastening tape 90 in a folded state where the engagement sheet exists. Thereby, the engagement sheet that the user feels most uncomfortable visually and tactilely is accommodated in the accommodating portion 72. Therefore, user discomfort can be further reduced. Moreover, since the fastening tape which is easily recognized visually and tactilely as a foreign object is accommodated in the accommodating part 72 except the free end part 93, a user's discomfort can be reduced more.

  According to one embodiment, the absorbent article is provided in at least the crotch region, the longitudinal direction L, the width direction W orthogonal to the longitudinal direction L, the front waistline region, the crotch region, and the back waistline region. And an absorbent core 40a. A pair of fastening tapes 90 is provided at the end in the width direction of the absorbent article in either the front waistline region or the back waistline region. The fastening tape 90 has a joint portion 94a joined to either the front waistline region or the back waistline region. The absorbent article has a stretchable portion 85 that can be stretched at least in the width direction between the pair of fastening tapes 90. The expansion / contraction part 85 exists between the virtual line 40e which extended the side edge of the absorption core 40a in the width direction in the longitudinal direction L, and the junction part 94a. As described above, when wearing the absorbent article, the assistant pulls the fastening tape outward in the width direction and deploys it. According to this embodiment, since the expansion / contraction part 85 is expanded / contracted simultaneously with the deployment of the fastening tape 90, the absorbent article can be attached to the wearer in a state where the expansion / contraction part extends in the width direction. Therefore, the fitting property of an absorbent article can be improved. Further, the fastening tape 90 can be more easily developed by the force with which the stretchable portion 85 tends to contract.

  Moreover, since the area | region outside the virtual line 40e which extended the side edge of the absorption core 40a in the width direction to the longitudinal direction L is located outside the part laid on a wearer's buttocks or back, Expansion / contraction of the expansion / contraction part 85 is difficult to be prevented during the wearing operation by the weight. Therefore, the stretchability of the absorbent article and the developability of the fastening tape can be enhanced by the stretchable portion 85.

  According to one embodiment, of the front waistline area and the back waistline area, the waist area to which the fastening tape 90 is joined is not in the area between the joining portion 94a and the engagement sheet 92. Has elasticity. If the region between the joint portion 94a and the engagement sheet 92 has elasticity, the region between the joint portion 94a and the engagement sheet 92 extends during the fastening tape unfolding operation. Thereby, the force which extends the expansion-contraction part 85 is relieved, and it may become impossible to fully extend the expansion-contraction part 85. FIG. In the present embodiment, since the region between the joint portion 94a and the engagement sheet 92 has non-stretchability, the stretchable portion 85 is sufficiently stretched during the fastening tape unfolding operation. Thereby, as above-mentioned, the fitting property of an absorbent article can be improved.

  According to one embodiment, a pair of fastening tapes 90 is provided at the end of the rear waistline region 30 in the width direction W. The rear waistline region 30 further includes a waist circumference stretchable portion 85 that can be stretched at least in the width direction between the pair of fastening tapes 90. The force in the width direction W required to unfold the folded fastening tape 90 is less than the contraction force of the rear waistline region 30 when the rear waistline region 30 is extended until there is no wrinkle in the rear waistline region 30. Is also small. Accordingly, for example, when the pair of fastening tapes 90 is pulled in the width direction W in a state where the infant is placed on the absorbent article, before the rear waistline region 30 extends until the wrinkles of the back waistline region 30 disappear. The pair of fastening tapes 90 are developed by the contraction force of the waist elastic part 85. Thereby, the advantage that the fastening tape 90 can be developed using the contraction force of the waist elastic part 85 is obtained.

  Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

DESCRIPTION OF SYMBOLS 10 Absorbent article 20 Front waist area 25 Inseam area 30 Rear waist area 40 Absorbent body 50 Top sheet 60 Exterior sheet 60a Back sheet 70 Side flap 72 Storage part 90 Fastening tape 91 Base material 92 Engagement sheet 92a 1st area 92b Second region 93 Free end portion 94 Fixed end portion 95 First fold 96 Second crease 99 Engaging hook 100 First adhesive region 102 Second adhesive region 200 Temporary fixing portion

Claims (16)

A front waist area, a back waist area, and a fastening tape for fastening the front waist area and the back waist area;
The fastening tape includes an engagement sheet that can be engaged with at least one of the front waistline region and the back waistline region,
The fastening tape is folded to be unfoldable,
In a state where the fastening tape is folded, the first region of the engagement sheet faces the second region of the engagement sheet,
The said fastening tape is an absorbent article which has a temporary fixing part for temporarily fixing in the folded state.   2. The absorbent article according to claim 1, wherein the temporary fixing portion is provided in a region where the substrates directly face each other in a state where the fastening tape is folded. The first region and the second region of the engagement sheet have a plurality of engagement hooks protruding from the engagement sheet,
The absorptive article according to claim 1 or 2 with which said engagement hook of said 1st field and said engagement hook of said 2nd field are mutually engaged in the state where said fastening tape was folded up. The fastening tape has a base material extending from a fixed end portion to a free end portion, and the engagement sheet bonded to the base material,
The fastening tape has a first fold and a second fold for folding in a deployable manner so that the fixed end and the free end face in opposite directions,
In a state where the fastening tape is unfolded, the first fold line is provided closer to the free end than the second fold line,
The first region of the engagement sheet is disposed between the first fold and the second fold,
The absorbent article according to claim 3, wherein the second region of the engagement sheet is disposed closer to the free end than the first fold.   The temporary fixing portion may be configured so that, in a state in which the fastening tape is folded, the first hook is in the first region than the region in which the engaging hook in the first region and the engaging hook in the second region are engaged with each other. The absorptive article according to claim 4 provided in a field far from a crease.   The said temporary fix | stop part is provided in the area | region which overlapped with the engagement area | region where the said engagement hook of the said 1st area | region and the said engagement hook of the 2nd area | region engaged each other. Absorbent article. In a state where the fastening tape is folded, the first region of the engagement sheet is engaged with the second region of the engagement sheet,
The peel strength of the temporary fixing portion is smaller than the peel strength for releasing the engagement between the first region of the engagement sheet and the second region of the engagement sheet, according to any one of claims 3 to 6. Absorbent article.   8. The temporary fixing portion according to claim 3, wherein the temporary fixing portion is configured by an adhesive provided on at least one of the engagement hook in the first region and the engagement hook in the second region. The absorbent article as described.   The absorbent article according to claim 8, wherein a width of the adhesive is smaller than a diameter of a tip portion of the engagement hook. The maximum diameter of the engagement hooks in the first region is larger than the distance between the engagement hooks in the second region,
The maximum diameter of the engagement hooks in the second region is larger than the distance between the engagement hooks in the first region,
The engagement hook in the first region and the engagement hook in the second region are engaged with each other in a state where the fastening tape is folded. Absorbent articles.   The absorbent article according to any one of claims 1 to 10, wherein the temporary fixing portion is configured by a peelable adhesive.   The absorbent article according to claim 11, wherein the temporary fixing portion is constituted by an adhesive that can be peeled off and cannot be re-adhered. A first adhesive region in which the first region of the engagement sheet is bonded to the base material; and a second adhesive region in which the second region of the engagement sheet is bonded to the base material. And
The said temporary fix | stop part is continuously extended from the said 1st adhesion area | region or the said 2nd adhesion area | region, and is comprised by the adhesive agent protruded from the said engagement sheet | seat. Absorbent articles.   The said front waist area or the said back waist area has a accommodating part which accommodates the area | region in which the said engagement sheet exists at least of the fastening tape of the folded state. Absorbent article as described in 1. A longitudinal direction, a width direction orthogonal to the longitudinal direction, a front waistline region, a crotch region, a back waistline region, and at least an absorbent core provided in the crotch region,
The fastening tape is provided in a pair at the end in the width direction of the absorbent article in either the front waistline region or the back waistline region,
The fastening tape has a joint portion joined to either the front waist area or the rear waist area,
The absorbent article has a stretchable part that can be stretched at least in the width direction between the pair of fastening tapes,
The absorptivity according to any one of claims 1 to 14, wherein the stretchable part exists between a virtual line obtained by extending a side edge of the absorbent core in the width direction in the longitudinal direction and the joint part. Goods.   Of the front waist area and the rear waist area, the waist area to which the fastening tape is joined has non-stretchability in the area between the joint and the engagement sheet. The absorbent article according to claim 15.

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