Absorbent diaper

Abstract

An absorbent diaper is provided. The absorbent diaper includes an absorbent structure, a pair of first side panels, a pair of second side panels, a securing strip, and a shielding cover. The absorbent structure defines a first waist region, a crotch region, and a second waist region in a longitudinal direction. A first side panel extends in a lateral direction from the absorbent structure at a first waist region and a second side panel extends in the lateral direction from the absorbent structure at a second waist region. A securing strip is disposed on the outward facing surface of the first side insert in the longitudinal direction. A securing strip is repeatably securely engaged with the inward surface of the second side insert. The shielding cover is arranged on the outward surface of the first side insert to cover the lower end part of the fixing strip.

Description

Technical Field

[0001] The present disclosure relates to an absorbent diaper that can be worn on the lower torso of a wearer. Background Art

[0002] An absorbent diaper has been used, which is worn on the lower body of a wearer to absorb and hold the body excrement of the wearer. The absorbent diaper is converted from an unfolded state to a wearing state in which the absorbent diaper surrounds the waist of the wearer and allows the legs of the wearer to pass through the absorbent diaper, and then is worn on the lower body of the wearer. As an example, this absorbent diaper can be used as a disposable diaper for infants and toddlers.

[0003] refer to Figure 1 , which shows an example of an absorbent diaper according to the prior art being worn by a wearer. The absorbent diaper 10 has an absorbent structure 20 for absorbing body excrement of the wearer, a pair of side panels 31 and 32 coupled to the absorbent structure 20, and a fixing strip 40 provided on the side panels 31. The absorbent structure 20 is positioned at the front, rear and crotch of the lower body. The side panels 31 and 32 overlap each other so as to fix the absorbent structure 20 to the lower body of the wearer. In order to fix the side panels 31 and 32 and to fix the absorbent structure 20 to the lower body, the fixing strip 40 is coupled to the side panel 31. In a state where the absorbent diaper 10 is worn by the wearer, the absorbent diaper 10 forms leg openings 12 surrounding the legs of the wearer. The leg openings 12 are defined by the side ends of the absorbent structure 20 and the lower ends of the side panels 31 and 32.

[0004] When the wearer moves in a state of wearing the absorbent diaper 10, the lower ends of the side panels 31 and 32 may be folded inward and rolled up at the leg openings 12. The fixing tape 40 has a rough surface. When the lower end portion of the side panel 31 is rolled up, the rough surface of the fixing tape 40 directly contacts the skin of the legs or waist of the wearer. Therefore, the fixing tape 40 may irritate the skin of the wearer and may cause a rash on the skin of the wearer.

[0005] In order to alleviate skin irritation caused by the fixing strip 40, the fixing strip 40 may have a short length. However, the fixing strip having a short length reduces the effective fixing area between the side panels 31 and 32, thereby deteriorating the stable fixing state of the absorbent diaper. In order to prevent the lower ends of the side panels 31 and 32 from being easily rolled up, the side panels 31 and 32 may be made of a material having a hard property. However, the hard side panels 31 and 32 hinder the easy wearing of the absorbent diaper 10. Summary of the invention

[0006] The disclosed embodiments provide an absorbent diaper that solves at least one or more of the above-mentioned problems of the prior art. According to one embodiment, an absorbent diaper is provided that prevents the phenomenon that the fixing strip irritates the wearer's skin. According to one embodiment, an absorbent diaper is provided that prevents the phenomenon that the fixing strip is rolled up to irritate the wearer's skin. According to one embodiment, an absorbent diaper is provided that increases the effective fixing area between the side panels and prevents the fixing strip from irritating the skin.

[0007] Embodiments of the present disclosure relate to an absorbent diaper. An absorbent diaper according to one embodiment includes an absorbent structure, a pair of first side panels, a pair of second side panels, a fixing strip, and a shielding cover. The absorbent structure defines a first waist region, a crotch region, and a second waist region in a longitudinal direction, and is configured to absorb body excreta of a wearer. A pair of first side panels each extend from the absorbent structure in a transverse direction at the first waist region, and can be stretched in the transverse direction. A pair of second side panels each extend from the absorbent structure in a transverse direction at the second waist region, and can be stretched in the transverse direction. The fixing strip is configured to be repeatedly fixedly engaged with the inward surface of each second side panel. The fixing strip has a lower end edge and an upper end edge spaced apart in the longitudinal direction, and is arranged on the outward surface of each first side panel in a pair of first side panels in the longitudinal direction. The shielding cover is arranged on the outward surface of each first side panel to cover the lower end portion of the fixing strip having the lower end edge.

[0008] In one embodiment, each first side panel has a first leg edge that partially surrounds the wearer's leg and a first waist edge that partially surrounds the wearer's waist. The lower edge of the fastening strip is located adjacent to the first leg edge, and the upper edge of the fastening strip is located adjacent to the first waist edge.

[0009] In one embodiment, the first leg edge of the first side panel may have a notch portion formed between the inner end edge of the barrier cover and the absorbent structure and recessed toward the first waist edge.

[0010] In one embodiment, the absorbent diaper comprises a compressed portion that is recessed toward the outward surface of the first side panel between the barrier covering and the fastening strip. The compressed portion comprises an upper end edge of the barrier covering that overlaps a lower end portion of the fastening strip.

[0011] In one embodiment, the compressed portion is configured to have a first compressed portion and a second compressed portion, which are compressed together and overlap each other toward the outward surface of each first side panel. The first compressed portion includes a portion of the upper end portion of the shade cover, the upper end portion having the upper end edge of the shade cover, and the second compressed portion includes a portion of the lower end portion of the fixing strip.

[0012] The compression portion may form a concave groove between the fixing strip and the shielding cover, the concave groove being located along the lateral direction and being concave toward the outward surface of each first side panel. The compression portion may have a width defined in a direction perpendicular to the upper end edge of the shielding cover. The second side panel may be configured to have a second leg edge, and when the first side panel and the second side panel are fixed, the second leg edge is partially positioned within the compression portion.

[0013] In one embodiment, the absorbent diaper includes a carrier sheet interposed between the fastening strip and the outward surface of the first side panel and between the barrier cover and the outward surface of the first side panel, and retaining the fastening strip and the barrier cover. The carrier sheet is configured to accommodate the entire fastening strip and the entire barrier cover.

[0014] In one embodiment, the fastening strip, the shade cover and the carrier sheet constitute a fastening module that is attachable to the outwardly facing surface of the first side panel and re-fastenable to the inwardly facing surface of the second side panel.

[0015] In one embodiment, the absorbent diaper includes a compression portion that is recessed toward the outward surface of the carrier sheet between the barrier cover and the fixing strip. The compression portion includes an upper end edge of the barrier cover that overlaps the lower end portion of the fixing strip and is defined between two side end edges of the carrier sheet. The second side panel can be configured to have a second leg edge that is partially positioned within the compression portion when the first side panel and the second side panel are fixed.

[0016] In one embodiment, the first leg edge of the first side panel may have a notch portion which is formed between the inner end edge of the carrier sheet and the absorbent structure and which is recessed toward the first waist edge.

[0017] In one embodiment, the fastening strip comprises a plurality of hook-type fasteners.

[0018] According to one embodiment, the shielding cover covering the lower end portion of the fixing strip is provided to be positioned adjacent to the lower end portion of the first side panel. Therefore, the absorbent diaper according to one embodiment can prevent the lower end portion of the fixing strip from irritating the wearer's skin and can reduce the phenomenon that the lower end portion of the first side panel rolls up along the wearer's skin.

[0019] According to one embodiment, the fixing strip whose lower end portion is covered by the barrier cover may have a longer length.Therefore, the absorbent diaper according to one embodiment may have an improved fixing force between the side panels.

[0020] According to one embodiment, the compression portion eliminates the step between the fixing strip and the barrier cover. Therefore, the absorbent diaper according to one embodiment can increase the effective fixing area between the fixing strip and the second side panel, and can increase the bonding strength between the fixing strip and the second side panel.

[0021] According to one embodiment, the fixing strip and the shielding cover are arranged on the first side panel through the carrier sheet, and the carrier sheet, the fixing strip and the shielding cover together constitute a fixing module that can be repeatedly fixed to the second side panel. In addition, the fixing module can be manufactured in a module production line independent of a main production line for manufacturing absorbent articles with absorbent structures. Since the shielding cover is held by the carrier sheet, the shielding cover can be more stably positioned on the first side panel, the material cost of the shielding cover can be reduced, and the phenomenon that the lower end portion of the first side panel rolls up can be further prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a side view showing an example in which an absorbent diaper according to the related art is worn by a wearer.

[0023] Figure 2 is a plan view showing an absorbent diaper according to one embodiment of the present disclosure.

[0024] Figure 3 It shows that Figure 2 A side view of an example of an absorbent diaper converted to a wearing state is shown.

[0025] Figure 4 It is along Figure 2 A cross-sectional view taken along line IV-IV in FIG.

[0026] Figure 5 It is along Figure 2 A cross-sectional view taken along line VV in FIG.

[0027] Figure 6 It is along Figure 3 A cross-sectional view taken along line VI-VI in FIG.

[0028] Figure 7 is a plan view showing a portion of an absorbent diaper including a compression portion according to one embodiment of the present disclosure.

[0029] Figure 8The second side panel and the Figure 7 A cross-sectional view of the cross-sectional shape taken along line VIII-VIII in FIG.

[0030] Fig. 9 is a plan view showing a portion of an absorbent diaper including a carrier sheet according to one embodiment of the present disclosure.

[0031] Fig.10 It is along Fig. 9 A cross-sectional view taken along line XX in FIG.

[0032] Fig.11 is a plan view showing a portion of an absorbent diaper according to one embodiment of the present disclosure, the absorbent diaper including a carrier sheet having a compressed portion.

[0033] Fig.12 It is along Fig.11 A cross-sectional view taken along line XII-XII in FIG.

[0034] Fig.13 is a plan view showing a portion of an absorbent diaper according to one embodiment of the present disclosure, wherein the first side panel has a notched portion.

[0035] Fig.14 is a block diagram showing steps of a method of manufacturing an absorbent diaper according to one embodiment.

[0036] Fig.15 is a cross-sectional view schematically showing an example of the steps of combining the fixing strip and the shielding cover.

[0037] Fig.16 is a cross-sectional view schematically showing an example of a step of forming a compressed portion.

[0038] Fig.17 is a block diagram showing steps of a method of manufacturing an absorbent diaper according to another embodiment.

[0039] Fig.18 is a cross-sectional view schematically showing an example of a step of forming a fixing module.

[0040] Fig.19 is a cross-sectional view schematically showing an example of a step of combining and fixing modules.

[0041] Fig. 20 is a cross-sectional view schematically showing an example of a step of forming a compressed portion.

[0042] Fig.21 is a plan view schematically showing another example of the steps of forming the fixing module. DETAILED DESCRIPTION

[0043] For the purpose of explaining the technical idea of ​​the present disclosure, the embodiments of the present disclosure are shown. The scope of rights according to the present disclosure is not limited to the embodiments given below or the detailed description of the embodiments.

[0044] Unless otherwise defined, all technical terms and scientific terms used in this disclosure include the meanings commonly understood by those of ordinary skill in the art to which this disclosure belongs. All terms used in this disclosure are selected for the purpose of more clearly describing this disclosure, and are not selected to limit the scope of rights according to this disclosure.

[0045] Expressions such as “including,” “comprising,” “having,” etc. used in this disclosure should be understood as open-ended terms with the possibility of covering other embodiments unless otherwise mentioned in the phrase or sentence containing such expressions.

[0046] Unless otherwise stated, singular expressions described in the present disclosure may encompass plural expressions, which will also be applied to singular expressions recited in the claims.

[0047] Expressions such as “first,” “second,” etc. used in the present disclosure are used to distinguish a plurality of elements from one another, and are not intended to limit the order or importance of the elements.

[0048] In the present disclosure, the description that one element is “connected” or “coupled” to another element should be understood to indicate that the aforementioned one element can be directly connected or coupled to the aforementioned other element, and should be further understood that the aforementioned one element can be connected or coupled to the aforementioned other element via a new element.

[0049] The dimensions and values ​​described in the present disclosure are not limited to the dimensions and values ​​described herein. Unless otherwise specified, the dimensions and values ​​can be understood to refer to the stated values ​​and equivalent ranges including the values.

[0050] The "longitudinal direction" used in the present disclosure is the direction along the length of the absorbent diaper in the unfolded state, and refers to the direction across the front and back of the wearer's lower body. The "transverse direction" used in the present disclosure refers to the direction orthogonal to the longitudinal direction. For example, Figure 2 The arrow MD and arrow CD shown indicate the longitudinal direction (or machine direction) and the transverse direction (or direction perpendicular to the machine direction), respectively. The directional terms "upper" and "lower" used in the present disclosure refer to the upward direction and the downward direction when the absorbent article is worn by the wearer. For example, Figure 3The arrow UD and the arrow LD shown indicate the upward direction and the downward direction, respectively. The directional term "inward" used in the present disclosure refers to the direction toward the wearer's body, and the directional term "outward" refers to the direction opposite to the inward direction. The term "outer end" used in the present disclosure refers to the end formed at the outer side in the transverse direction relative to the central axis of the absorbent diaper, and the term "inner end" refers to the end located opposite to the outer end.

[0051] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent the same or corresponding elements. In addition, in the following description of the embodiments, redundant descriptions of the same or corresponding elements may be omitted. However, even if the description of an element is omitted, such an element is not intended to be excluded in any embodiment.

[0052] The embodiments disclosed below and shown in the accompanying drawings relate to an absorbent diaper and a method for manufacturing the same. The absorbent diaper according to the embodiment can be manufactured by one embodiment of the manufacturing method disclosed herein. However, it does not mean that the absorbent diaper according to the embodiment must be manufactured by one embodiment of the manufacturing method disclosed herein. The absorbent diaper according to one embodiment can be used as a disposable diaper in the form of shorts or toilet training shorts, which can be worn by infants or toddlers, but the use examples of the absorbent diaper according to the present disclosure are not limited thereto.

[0053] Figure 2 is a plan view showing an absorbent diaper according to one embodiment, Figure 3 It shows that Figure 2 A side view of an example of an absorbent diaper converted to a wearing state is shown. Figure 2 The absorbent diaper is shown in an unfolded state. Figure 2 The outwardly facing surfaces of the corresponding components of the absorbent diaper are shown. Figure 2 and Figure 3 .

[0054] An absorbent diaper 100 according to one embodiment includes an absorbent structure 200 serving as a main body of the absorbent diaper, and first and second side panels 310 and 320 coupled to the absorbent structure 200 and coupleable to each other so that the absorbent diaper 100 is worn on a wearer.

[0055] The absorbent diaper 100 can be worn on the lower body of the wearer in a state where the absorbent structure 200 is roughly folded with respect to the middle of the absorbent diaper. Figure 2 In the unfolded state of the absorbent diaper 100 shown, the absorbent structure 200 has a generally rectangular shape. Figure 3In the wearing state of the absorbent diaper shown, the absorbent structure 200 has a shape folded into a generally U-shape. In the state where the absorbent structure 200 is folded so as to be worn by the wearer, the absorbent diaper 100 has a waist opening 110 surrounding the waist of the wearer and leg openings 120 surrounding the legs of the wearer.

[0056] When the absorbent diaper 100 is worn by a wearer, the first region of the absorbent structure 200 can cover the back of the wearer's lower body (e.g., buttocks and hips), the second region of the absorbent structure 200 can cover the front of the wearer's lower body (e.g., lower abdomen), and the third region between the first region and the second region can cover the crotch between the wearer's legs. Therefore, the absorbent diaper 100 can be worn by the wearer in a state where the upper end of the absorbent structure 200 surrounds the wearer's waist and the side ends of the absorbent structure 200 surround the wearer's legs.

[0057] The first area of ​​the absorbent structure 200 is referred to as the first waist region 211, the second area of ​​the absorbent structure 200 is referred to as the second waist region 213, and the third area between the first area and the second area is referred to as the crotch region 212. Therefore, the absorbent structure 200 defines the first waist region 211, the crotch region 212, and the second waist region 213 in the longitudinal direction MD. The crotch region 212 interconnects the first waist region 211 and the second waist region 213. Hereinafter, an embodiment is described in which the first waist region 211 covers the back of the wearer's lower body. As another example, the absorbent diaper can be worn by the wearer so that the first waist region 211 covers the front of the wearer's lower body and the second waist region 213 covers the back of the wearer's lower body.

[0058] The absorbent structure 200 has a first upper end edge 221 and a second upper end edge 222, and a first outer end edge 223 and a second outer end edge 224. The first upper end edge 221 and the second upper end edge 222 are positioned opposite to each other in the longitudinal direction MD. The first upper end edge 221 and the second upper end edge 222 partially surround the waist of the wearer and partially define the waist opening 110 of the absorbent diaper. The first outer end edge 223 and the second outer end edge 224 are positioned opposite to each other in the transverse direction CD. The first outer end edge 223 and the second outer end edge 224 respectively partially surround the legs of the wearer and respectively partially define the leg openings 120 of the absorbent diaper.

[0059] Figure 4 It is along Figure 2 A cross-sectional view of an absorbent diaper taken along line IV-IV in FIG. 1 and schematically showing the internal structure of the absorbent structure. Figure 2 and Figure 4 .

[0060] The absorbent structure 200 may include an inward sheet 231 facing the body of the wearer and in contact with the body of the wearer, an outward sheet 232 facing the outside of the body of the wearer and forming an outward portion of the absorbent structure, and an absorbent core 233 between the inward sheet 231 and the outward sheet 232. The inward sheet 231 has liquid permeability, and the outward sheet 232 has liquid impermeability. The absorbent core 233 has liquid absorbency. The body excreta of the wearer can be absorbed into the absorbent core 233 through the inward sheet 231 and retained in the absorbent core 233. Therefore, the absorbent structure 200 is configured to absorb and retain the body excreta of the wearer.

[0061] The absorbent structure 200 has a pair of side end seam portions 234 at which edge portions of the inner sheet 231 and the outer sheet 232 in the transverse direction CD are joined. The absorbent structure 200 has a pair of upper end seam portions 235 at which edge portions of the inner sheet 231 and the outer sheet 232 in the longitudinal direction MD are joined. Each of the side end seam portions 234 may include an elastic member therein, and each of the upper end seam portions 235 may include an elastic member therein. Therefore, when the absorbent structure 200 covers the body of the wearer, the side end seam portions 234 may elastically tighten the legs of the wearer, and the upper end seam portions 235 may elastically tighten the waist of the wearer.

[0062] refer to Figure 2 and Figure 3 In the state where the absorbent structure 200 is folded so as to cover the lower body of the wearer, the pair of second side panels 320 overlap and are respectively fixed to the pair of first side panels 310. Therefore, the absorbent structure 200 can be fixed to the body of the wearer.

[0063] Each of the pair of first side panels 310 extends from the absorbent structure 200 in the cross direction CD at the first waist region 211. Each of the pair of second side panels 320 extends from the absorbent structure 200 in the cross direction CD at the second waist region 213. The first side panels 310 and the second side panels 320 are stretchable in the cross direction CD. The first side panels 310 and the second side panels 320 may be made of an elastic material that is stretchable in the cross direction CD, and may include, for example, an elastically stretchable nonwoven fabric.

[0064] The first side panel 310 may be coupled to the side end seam portion 234 of the absorbent structure at the first waist region 211 by bonding. The first side panel 310 forms the waist opening 110 and the leg opening 120 of the absorbent diaper together with the absorbent structure. The first side panel 310 has a first leg edge 313 that partially surrounds the legs of the wearer and a first waist edge 314 that partially surrounds the waist of the wearer. The first leg edge 313 and the first waist edge 314 are positioned opposite to each other in the longitudinal direction MD (or, in the up-down direction). The first leg edge 313 may include an arc portion 317 that is approximately bent into an arc shape, and a straight portion 318 that is formed between the arc portion 317 and the outer side end edges 223 and 224 and is perpendicular to the outer side end edges 223 and 224.

[0065] The first side panel 310 is coupled to the absorbent structure 200 such that the first waist edge 314 extends from the first upper end edge 221 of the absorbent structure, and the first leg edges 313 are connected to the outer side end edges 223 and 224 of the absorbent structure. Therefore, in a state where the absorbent diaper is worn by a wearer, the first upper end edge 221 of the absorbent structure and each first waist edge 314 of a pair of first side panels define a portion of the waist opening 110 of the absorbent diaper. In addition, in a state where the absorbent diaper is worn by a wearer, the outer side end edges 223 and 224 of the absorbent structure and the first leg edge 313 of each first side panel define a portion of the leg opening 120 of the absorbent diaper.

[0066] The second side panel 320 can be coupled to the side end seam portion 234 of the absorbent structure at the second waist region 213 by bonding. The second side panel 320 forms the waist opening 110 and the leg openings 120 of the absorbent diaper together with the absorbent structure. The second side panel 320 has a second leg edge 323 that partially surrounds the wearer's legs and a second waist edge 324 that partially surrounds the wearer's waist. The second leg edge 323 and the second waist edge 324 are positioned opposite to each other in the longitudinal direction MD. The second leg edge 323 can be formed perpendicular to the outer side end edges 223 and 224.

[0067] The second side panel 320 is coupled to the absorbent structure 200 such that the second waist edge 324 extends from the second upper end edge 222 of the absorbent structure, and the second leg edges 323 are connected to the outer side end edges 223 and 224 of the absorbent structure. Therefore, in a state where the absorbent diaper is worn by a wearer, the second upper end edge 222 of the absorbent structure and each second waist edge 324 of a pair of second side panels define a portion of the waist opening 110 of the absorbent diaper. In addition, in a state where the absorbent diaper is worn by a wearer, the outer side end edges 223 and 224 of the absorbent structure and the second leg edges 323 of the second side panels define a portion of the leg opening 120 of the absorbent diaper.

[0068] The absorbent diaper of this embodiment includes a fastening tape for fastening the first side panel and the second side panel to secure the absorbent structure to the wearer, and a barrier cover for preventing skin irritation of the wearer caused by the fastening tape. Figure 5 It is along Figure 2 A cross-sectional view taken along line VV in FIG. Figure 6 It is along Figure 3 A cross-sectional view taken along line VI-VI in FIG. Figure 2 , Figure 3 , Figure 5 and Figure 6 .

[0069] The fixing strip 400 is arranged on the outward surface 311 of each first side panel 310 along the longitudinal direction MD. The fixing strip 400 is spaced apart from the outer side end edges 223 and 224 of the absorbent structure in the transverse direction CD and is arranged on the outward surface 311 of the first side panel along the outer side end edge 315 of the first side panel. The fixing strip 400 has a narrow and long rectangular shape. Therefore, the fixing strip 400 has a lower end edge 411, an upper end edge 421, and a pair of side end edges 431 and 432. The lower end edge 411 and the upper end edge 421 are spaced apart along the longitudinal direction MD. According to one embodiment, the fixing strip 400 is arranged on the outward surface 311 of the first side panel so that the lower end edge 411 is positioned adjacent to the first leg edge 313 of the first side panel, and the upper end edge 421 is positioned adjacent to the first waist edge 314 of the first side panel.

[0070] like Figure 3 and Figure 6As shown, in a state where the absorbent structure 200 is worn by the wearer to cover the lower body, the inward surface 312 of the first side panel faces the side of the lower body, and the outward surface 311 of the first side panel and the fixing strip 400 face the outside of the side of the lower body. The second side panel 320 overlaps the first side panel 310 toward the side of the lower body, and the fixing strip 400 is coupled to the inward surface 322 of the second side panel 320. Therefore, the second side panel 320 is fixed to the first side panel 310, and the absorbent diaper 100 is fixed to the lower body of the wearer. The first side panel 310 and the second side panel 320 are stretchable in the transverse direction. In a state where the second side panel 320 is stretched in the transverse direction, the second side panel 320 can be fixed to the first side panel 310 by the fixing strip 400.

[0071] In one embodiment, the fixing strip 400 is configured to be re-fixably engaged with the inward surface 322 of the second side panel. Therefore, the fixing strip 400 and the second side panel 320 can be separated and reconnected to adjust the fixing state of the absorbent diaper, remove the absorbent diaper, or re-wear the absorbent diaper.

[0072] As an example, the fixing strip 400 includes a plurality of hook-type fasteners. Specifically, the fixing strip 400 can be configured to have a substrate and a plurality of hook-shaped members protruding from a surface of the substrate. The inward surface 322 of the second side panel 320 can have a plurality of fibers that are formed to releasably engage or entangle with the hook-shaped members of the fixing strip 400. Therefore, the inward surface 322 of the second side panel 320 can be directly releasably engaged with the fixing strip 400. As another example, the second side panel 320 can have a fixing strip that includes a plurality of loop-type fasteners, and the fixing strip is disposed on the inward surface 322 so as to correspond to the fixing strip 400 of the first side panel. Such loop-type fasteners can be releasably engaged with the hook-type fasteners.

[0073] The shielding cover 500 is disposed on the outward surface 311 of each first side panel so as to cover a portion of the fixing strip 400, thereby preventing the fixing strip 400 from irritating the wearer's skin. The shielding cover 500 may be coupled to the outward surface 311 by bonding. The shielding cover 500 is disposed on the outward surface 311 so as to cover the lower end portion 410 of the fixing strip including the lower end edge 411 of the fixing strip. The lower end portion 410 of the fixing strip is a portion of the fixing strip located upward from the lower end edge 411, and means a portion covered by and overlapped with the shielding cover 500. Therefore, the lower end portion 410 of the fixing strip may be referred to as an inwardly overlapping portion of the fixing strip.

[0074] The shielding cover 500 may be formed in a rectangular shape. The shielding cover 500 has an upper end edge 511, a lower end edge 521, and a pair of side end edges 531 and 532. The upper end edge 511 of the shielding cover is located above the lower end edge 411 of the fixing strip, and the lower end edge 521 of the shielding cover is located between the lower end edge 411 of the fixing strip and the first leg edge 313 of the first side panel. Since the upper end edge 511 of the shielding cover 500 is located above the lower end edge 411 of the fixing strip, the shielding cover 500 has an upper end portion 510 with the upper end edge 511. The upper end portion 510 of the shielding cover is a portion of the shielding cover located below the upper end edge 511, and refers to a portion covering the lower end portion 410 of the fixing strip and overlapping with the lower end portion 410. Therefore, the upper end portion 510 of the shielding cover may be referred to as an outwardly overlapping portion of the shielding cover.

[0075] Therefore, an overlapped portion (eg, a lower end portion 410 of the fixing strip and an upper end portion 510 of the shielding cover) is formed between the fixing strip 400 and the shielding cover 500 on the outward surface 311 of the first side panel. The length of the overlapped portion may be, for example, 7 to 8 mm, but is not limited thereto.

[0076] The width of the concealing cover 500 is greater than the width of the securing strip 400. Thus, the outer side end edge 531 of the concealing cover is located between the outer side end edge 315 of the first side panel and the outer side end edge 431 of the securing strip, and the inner side end edge 532 of the concealing cover is located between the inner side end edge 432 of the securing strip and the outer side end edges 223 and 224 of the absorbent structure.

[0077] The shielding cover 500 has a sheet shape. As an example, the shielding cover 500 may be a spunbond nonwoven fabric, a spunlace nonwoven fabric, a spunbond-meltblown-spunbond nonwoven fabric, or a through-air bonded carded web nonwoven fabric. As an example, the shielding cover 500 may be a cotton fabric. The thickness of the shielding cover 500 may be thicker than that of the fixing strip 400, and may have a basis weight of 20 gsm to 100 gsm.

[0078] The shielding cover 500 covers the lower end portion 410 of the fixing strip 400 and thereby blocks the fixing strip 400. When the absorbent diaper 100 is worn and used by the wearer, the lower end portion of the first side panel 310 may be rolled up toward the body of the wearer, and the lower end portion of the fixing strip 400 may face the skin of the wearer. However, since the lower end portion of the fixing strip 400 is covered by the shielding cover 500, the phenomenon that the fixing strip 400 irritates the skin of the wearer can be physically prevented.

[0079] Since the lower end portion 410 of the fixing strip 400 is covered by the shielding cover 500, the absorbent diaper according to the embodiment can include a longer fixing strip 400 and can exhibit an increased fixing force between the side panels. As an example, the distance between the first waist edge 314 of the first side panel and the upper end edge 421 of the fixing strip can be determined within the range of 3 mm to 8 mm, the distance between the first leg edge 313 of the first side panel and the lower end edge 411 of the fixing strip can be determined within the range of 10 mm to 15 mm, and the length of the fixing strip 400 along the longitudinal direction MD can be 67 mm to 128 mm. The length of the fixing strip 400 is not limited to the above example, and can vary according to the size of the lower body of the wearer on whom the absorbent diaper is worn.

[0080] The first side panel 310 has stretchability in the transverse direction CD. When the absorbent diaper 100 is worn by the wearer, the first side panel 310 is coupled to the second side panel 320 through the fixing strip 400 in a state of being stretched in the transverse direction CD. The shielding cover 500 covering the lower end portion 410 of the fixing strip is bonded to the outward surface 311 of the first side panel. The shielding cover 500 provided on the lower end portion of the first side panel can reduce the stretchability of the lower end portion of the first side panel and can increase the thickness of the lower end portion of the first side panel. Therefore, the shielding cover 500 can reduce the stretchability of the lower end portion of the first side panel around the fixing strip, thereby reducing the rolling-up phenomenon of the lower end portion of the first side panel and the possibility of the fixing strip contacting the skin.

[0081] Figure 7 is a plan view showing a portion including a compressed portion of an absorbent diaper according to one embodiment of the present disclosure, Figure 8 The second side panel and the Figure 7 A cross-sectional view of the cross-sectional shape taken along the line VIII-VIII in FIG. Figure 2 , Figure 3 , Figure 7 and Figure 8 .

[0082] according to Figure 7 and Figure 8The absorbent diaper of the illustrated embodiment includes a compressed portion 600 that is recessed toward the outward surface 311 of the first side panel between the barrier cover 500 and the fixing strip 400. The compressed portion 600 is formed between the fixing strip 400 and the barrier cover 500. The compressed portion 600 eliminates the difference in thickness between the fixing strip and the barrier cover, thereby increasing the effective fixing area between the fixing strip and the second side panel.

[0083] The compressed portion 600 extends so as to include an upper end edge 511 of the shielding cover overlapping the lower end portion 410 of the fixing strip. The compressed portion 600 may extend in the transverse direction CD. The compressed portion 600 is formed to have a width that may be defined along the longitudinal direction MD. The width 620 of the compressed portion 600 is defined in a direction perpendicular to the upper end edge 511 of the shielding cover (e.g., the longitudinal direction MD). That is, the upper end edge 511 of the shielding cover is positioned within the compressed portion 600 in a direction orthogonal to the width direction of the compressed portion 600. The width 620 of the compressed portion 600 is longer than the length of the overlapping portion of the shielding cover 500 and the fixing strip 400. Therefore, when the outward surface of the first side panel 310 is viewed in a plan view, the lower end edge 411 of the fixing strip and the upper end edge 511 of the shielding cover 500 are positioned within the compressed portion 600. As another example, the width 620 of the compressed portion 600 may be smaller than the length of the overlapping portion of the shielding cover 500 and the fixing strip 400 , and the lower end edge 411 of the fixing strip may be positioned below the compressed portion 600 .

[0084] In the compressed portion 600, the shielding cover 500 and the fixing strip 400 are compressed together. Specifically, in the compressed portion 600, the upper end portion 510 having the upper end edge 511 of the shielding cover and the lower end portion 410 having the lower end edge 411 of the fixing strip are both compressed toward the outward surface 311 of the first side panel. According to one embodiment, the compressed portion 600 is configured to have a first compressed portion 611 and a second compressed portion 612 that overlap each other. The first compressed portion 611 and the second compressed portion 612 are compressed together toward the outward surface 311 of the first side panel. The first compressed portion 611 includes a portion of the upper end portion 510 of the shielding cover (having the upper end edge 511 of the shielding cover), and the second compressed portion 612 includes a portion of the lower end portion 410 of the fixing strip (having the lower end edge 411 of the fixing strip).

[0085] The first compressed portion 611 and the second compressed portion 612 overlap in the thickness direction of the first side panel, the fixed strip and the shielding cover. As an example, the first compressed portion 611 has a wider area than the second compressed portion 612. The first compressed portion 611 includes the upper edge 511 of the shielding cover and is compressed toward the outward surface 311 of the first side panel. The second compressed portion 612 includes the lower edge 411 of the fixed strip and is compressed toward the outward surface 311 of the first side panel. The compressed portion 600 configured to have the first compressed portion 611 and the second compressed portion 612 can be formed by pressing the overlapping portion of the fixed strip and the shielding cover toward the outward surface of the first side panel by means of a pressure roller. The width of the pressure roller can be greater than the width of the overlapping portion of the fixed strip and the shielding cover. During the pressing process using the pressure roller, heat can be applied to the fixed strip and the shielding cover by the pressure roller. Alternatively, the pressing roller may have a predetermined pattern on an outer circumferential surface thereof, and the predetermined pattern may be formed on the surface of the compressing part 600 .

[0086] As an example, the fixing strip 400 may have a thickness of 0.35 mm, and the shielding cover 500 may have a thickness of 0.51 mm, which is thicker than the thickness of the fixing strip. However, the thickness of the fixing strip and the shielding cover are not limited thereto. Therefore, in a state where the shielding cover 500 covers the lower end portion 410 of the fixing strip and the upper end edge 511 of the shielding cover overlaps the lower end portion 410 of the fixing strip, a protruding step is formed between the upper end edge 511 of the shielding cover and the fixing strip due to the thickness of the shielding cover. When the fixing strip 400 is fixed to the inward surface 322 of the second side panel 320, the step may form an empty space between the inward surface 322 of the second side panel 320 and the fixing strip 400, thereby reducing the effective fixing area between the fixing strip 400 and the inward surface 322 of the second side panel.

[0087] The compressed portion 600 configured to have the first compressed portion 611 and the second compressed portion 612 is compressed so that the thickness of the compressed portion is smaller than the thickness of the fixing strip 400. Figure 8 As shown, the compressed portion 600 forms a concave groove between the fixing strip 400 and the shade cover 500, which is concave toward the outward surface 311 of the first side panel. Such a concave groove is located between the fixing strip 400 and the shade cover 500 along the transverse direction CD.

[0088] The compressed portion 600, which has a thickness less than that of the fixing strip and is formed as a concave groove, does not form a step caused by the overlap of the upper end edge 511 of the shielding cover with the lower end portion 410 of the fixing strip. Therefore, the inward surface 322 of the second side panel can be engaged with the fixing strip 400 in a wider area, while almost no empty space is formed between the inward surface 322 and the fixing strip 400. In addition, the second leg edge 323 of the second side panel can be positioned to correspond to the height of the fixing strip 400, and the lower end portion of the second side panel including the second leg edge 323 does not protrude significantly. Therefore, the compressed portion 600 can increase the effective fixing area between the fixing strip and the second side panel, and can increase the bonding strength between the fixing strip and the second side panel. In this regard, the second side panel 320 can be configured so that when the first side panel and the second side panel are fixed, a portion of the second leg edge 323 is positioned within the compressed portion 600. For example, the length of the second side panel 320 between the second waist edge and the second leg edge may be longer than the length between the first waist edge and the upper edge of the compressed portion 600 , and may be shorter than the length between the first waist edge and the lower edge of the compressed portion 600 .

[0089] As another example, the width 620 of the compressed portion 600 may be greater than the length of the shielding cover 500 in the longitudinal direction MD, and the entire shielding cover 500 may be included in the compressed portion 600. In this example, the first compressed portion 611 of the compressed portion may include the entire shielding cover 500 covering the upper end edge 511 of the shielding cover.

[0090] Fig. 9 is a plan view showing a portion of an absorbent diaper including a carrier sheet according to one embodiment of the present disclosure, Fig.10 It is along Fig. 9 A cross-sectional view taken along line XX in FIG. Figure 2 , Figure 3 , Fig. 9 and Fig.10 .

[0091] In accordance with Fig. 9 and Fig.10In the absorbent diaper of the illustrated embodiment, the fixing strip that can be repeatedly fixed to the inward surface of the second side panel is arranged on the first side panel by the fixing module. The absorbent diaper 100 includes a carrier sheet 710 that holds the fixing strip 400 and the shielding cover 500. The carrier sheet 710 is between the fixing strip 400 and the outward surface 311 of the first side panel and between the shielding cover 500 and the outward surface 311 of the first side panel. The carrier sheet 710 is configured to accommodate the entire fixing strip 400 and the entire shielding cover 500. The carrier sheet 710 can be made of nonwoven fabric. As an example, the carrier sheet 710 can be a spunbond nonwoven fabric or a spunbond-meltblown-spunbond nonwoven fabric. The thickness of the carrier sheet 710 can be less than the thickness of the fixing strip 400, and the basis weight is less than 50 gsm.

[0092] The fixing strip 400 is bonded to the outward surface 711 of the carrier sheet 710, and the shielding cover 500 is bonded to the outward surface 711 of the carrier sheet so as to cover the lower end portion 410 of the fixing strip. The carrier sheet 710 is bonded to the outward surface 311 of the first side panel at its inward surface 712. The carrier sheet 710 is disposed on the outward surface 311 of the first side panel so that the fixing strip 400 is fixed to the outer surface 311 of the first side panel. Figure 2 and Figure 3 The described arrangement is located on the first side panel.

[0093] Since the fixing strip 400 and the shielding cover 500 are bonded to the carrier sheet 710, the fixing strip 400, the shielding cover 500 and the carrier sheet 710 constitute a fixing module 800 that can be repeatedly fixed to the inward surface of the second side panel. Since the fixing module 800 is attached to the outward surface 311 of the first side panel, the fixing strip 400 and the shielding cover 500 partially covering the fixing strip 400 can be stably arranged on the outward surface 311 of the first side panel through the carrier sheet 710.

[0094] Fig.11 is a plan view showing a portion of an absorbent diaper according to one embodiment of the present disclosure, the absorbent diaper including a carrier sheet having a compressed portion. Fig.12 It is along Fig.11 A cross-sectional view taken along line XII-XII in FIG. Fig.11 and Fig.12 ,refer to Figure 7 and Figure 8 The described compression portion 600 is formed in the fixing module 800 .

[0095] The compressed portion 600 is recessed toward the outward surface 711 of the carrier sheet between the shielding cover 500 and the fixing strip 400. The compressed portion 600 eliminates the thickness difference between the fixing strip and the shielding cover. The compressed portion 600 is defined between the two side end edges 713 and 714 of the carrier sheet. The compressed portion 600 extends so as to include the upper end edge 511 of the shielding cover overlapping the lower end portion 410 of the fixing strip.

[0096] In the compressed portion 600, both the upper portion 510 having the upper edge 511 of the shielding cover and the lower portion 410 having the lower edge 411 of the fixing strip are compressed toward the outward surface 711 of the carrier sheet. The compressed portion 600 is configured to have a first compressed portion 611 including a portion of the upper portion 510 of the shielding cover having the upper edge 511 of the shielding cover and a second compressed portion 612 including a portion of the lower portion 410 of the fixing strip having the lower edge 411 of the fixing strip.

[0097] The first compressed portion 611 includes the upper end edge 511 of the shielding cover and is compressed toward the outward surface 711 of the carrier sheet. The second compressed portion 612 includes the lower end edge 411 of the fixed strip and is compressed toward the outward surface 711 of the carrier sheet. The compressed portion 600 can be formed by pressing the overlapping portion of the fixed strip and the shielding cover toward the outward surface of the carrier sheet by means of a pressing roller. As an example, the fixed strip 400 can have a thickness of 0.35 mm, the shielding cover 500 can have a thickness of 0.51 mm, and the carrier sheet 710 can have a thickness of 0.37 mm. However, the thickness of the fixed strip, the shielding cover and the carrier sheet is not limited thereto. The compressed portion 600 configured to have the first compressed portion 611 and the second compressed portion 612 is compressed so that the thickness of the compressed portion is less than the thickness of the fixed strip 400.

[0098] The compressed portion 600 formed on the carrier sheet 710 can increase the effective fixing area between the fixing strip and the second side panel, and can increase the bonding strength between the fixing strip and the second side panel. Figure 8 As shown, the second side panel can be configured such that a portion of the second leg edge is positioned within the compression portion 600 when the first side panel and the second side panel are secured.

[0099] The absorbent diaper according to one embodiment may have a shape of the first leg edge capable of dispersing the stretching force of the first side panel. As an example, a notch portion is formed in the first leg edge of the first side panel to disperse the stretching force of the first side panel and prevent the first leg edge from rolling up.

[0100] Fig.13is a plan view showing a portion of an absorbent diaper according to one embodiment of the present disclosure, wherein the first side panel has a notched portion. Fig.13 , the first leg edge 313 of the first side panel 310 has a notch portion 319 that is recessed toward the first waist edge 314 of the first side panel. The notch portion 319 may be formed between the inner side end edge 714 of the carrier sheet 710 and the absorbent structure 200 along an oblique direction between the longitudinal direction MD and the transverse direction CD. When the absorbent diaper is worn by a wearer, the first side panel may be stretched in the transverse direction CD. The notch portion 319 may disperse the stretching force applied to the first side panel and may prevent the first leg edge 313 of the first side panel from rolling up.

[0101] The above notched portion can be applied to Figure 2 , Figure 7 and Fig.11 The first leg edge of the first side panel in the embodiment shown. As an example, Figure 2 The illustrated first leg edge 313 of the first side panel may have the above-mentioned notched portion formed between the inner end edge 532 of the barrier cover and the absorbent structure and recessed toward the first waist edge 314 of the first side panel.

[0102] According to the above-mentioned embodiment of the absorbent diaper, the lower end portion of the fixing strip is covered by the shielding cover. Therefore, the phenomenon that the lower end portion of the fixing strip irritates the wearer's skin can be prevented, and the phenomenon that the lower end portion of the first side panel rolls up can be prevented. In addition, according to the above-mentioned embodiment of the absorbent diaper, the fixing module configured with the fixing strip, the shielding cover and the carrier sheet can facilitate the provision of the shielding cover, can further increase the thickness of the lower end portion of the first side panel, and can reduce the material cost of the shielding cover.

[0103] Thus, an absorbent diaper according to the present disclosure can be manufactured by attaching a fastening strip and a barrier cover to an absorbent article comprising an absorbent structure and first and second side panels, or by attaching a fastening module to such an absorbent article. Figures 14 to 21 , and also refer to the above Figures 2 to 12 , describes an embodiment of a method of making an absorbent diaper according to the present disclosure.

[0104] Fig.14 is a block diagram showing steps of a method of manufacturing an absorbent diaper according to one embodiment. Fig.15 is a cross-sectional view schematically showing an example of the step of combining the fixing strip and the shielding cover, Fig.16 is a cross-sectional view schematically showing an example of a step of forming a compressed portion.

[0105] refer to Fig.14 , a method for manufacturing an absorbent diaper according to one embodiment includes a step of forming an absorbent article (step S110), a step of bonding a fixing strip (step S120), and a step of bonding a shielding cover (step S130). In addition, the method for manufacturing an absorbent diaper according to one embodiment may include a step of forming a compressed portion (step S140) after the step of bonding a shielding cover (step S130). The step of bonding a fixing strip (step S120), the step of bonding a shielding cover (step S130), and the step of forming a compressed portion (step S140) may be performed in a main production line in which the step of forming an absorbent article (step S110) is performed.

[0106] By forming the absorbent article (step S110), Figures 2 to 4 The absorbent article shown. The absorbent article includes an absorbent structure 200, a pair of first side panels 310 and a pair of second side panels 320. The absorbent structure 200 is configured to define a first waist region 211, a crotch region 212 and a second waist region 213 in the longitudinal direction, and is configured to absorb body excrement of the wearer. Each first side panel of the pair of first side panels 310 extends from the absorbent structure 200 in the transverse direction CD at the first waist region 211 and can be stretched in the transverse direction CD. Each second side panel of the pair of second side panels 320 extends from the absorbent structure 200 in the transverse direction CD at the second waist region 213 and can be stretched in the transverse direction CD.

[0107] Regarding step S110, while the inward sheet 231, the absorbent core 233, and the outward sheet 232 are conveyed in the longitudinal direction MD, the inward sheet, the absorbent core, and the outward sheet are stacked, and the side end seam portion 234 and the upper end seam portion 235 are formed by rollers, thereby manufacturing the absorbent structure 200. Thereafter, the inner side end edge of each first side panel 310 may be bonded to the side end seam portion 234 of the absorbent structure by an adhesive, and the inner side end edge of each second side panel 320 may be bonded to the side end seam portion 234 of the absorbent structure by an adhesive. In the process of forming the upper end seam portion 235 and the side end seam portion 234, an elastic member may be inserted between the inward sheet 231 and the outward sheet 232.

[0108] refer to Fig.14 and Fig.15 By the step of bonding the fixing strip (step S120), the fixing strip 400 is bonded to the outward surface 311 of the first side panel along the longitudinal direction MD. Figure 5 and Figure 6As shown, the fixing strip 400 is configured to be repeatedly fixedly engaged with the inward surface 322 of the second side panel. The fixing strip 400 has a lower end edge 411 and an upper end edge 421 spaced apart along the longitudinal direction MD. As an example, when the fixing strip material that can be cut into one fixing strip is transported, an adhesive layer 440 can be applied to one surface of the fixing strip material by slot die coating. After the fixing strip material with the adhesive layer 440 formed thereon is cut into one fixing strip 400, the one fixing strip 400 can be bonded to the outward surface 311 of the first side panel.

[0109] refer to Fig.14 and Fig.15 , through the step of bonding the shielding cover (step S130), the shielding cover 500 is bonded to the outward surface 311 of the first side panel so as to cover the lower end portion 410 of the fixing strip. Figure 5 and Figure 6 As shown, the shielding cover 500 partially covers the fixing strip 400. Specifically, the shielding cover 500 is bonded to the outward surface 311 of the first side panel so as to cover the lower end portion 410 of the fixing strip including the lower end edge 411. As an example, when conveying a shielding cover material that can be cut into one shielding cover, an adhesive layer 550 can be applied to one surface of the shielding cover material by a slot die coating method. After the shielding cover material having the adhesive layer 550 formed thereon is cut into one shielding cover 500, the one shielding cover 500 can be bonded to the outward surface 311 of the first side panel so as to cover the lower end portion 410 of the fixing strip. The bonding of the shielding cover 500 can be assisted by a roller so that the shielding cover 500 can be bonded to the fixing strip 400 and the outward surface 311. The shielding cover 500 is bonded to the first side panel 310, thereby manufacturing, for example, according to Figure 2 An absorbent diaper of one embodiment shown. Thus, an absorbent diaper manufactured by the steps of forming an absorbent article (step S110), bonding a fastening strip (step S120), and bonding a concealing cover (step S130) can be provided to a wearer.

[0110] In the method of manufacturing an absorbent diaper according to one embodiment, a compressed portion capable of increasing an effective fixing area of ​​the first side panel and the second side panel may be formed in the fixing tape and the barrier cover. Fig.14 and Fig.16 By the step of forming the compressed portion (step S140), a compressed portion 600 is formed, which is recessed toward the outward surface 311 of the first side panel between the shielding cover 500 and the fixing strip 400. Figure 7 and Figure 8 As shown, the compressed portion 600 extends so as to include the upper end edge 511 of the shielding cover. The compressed portion 600 is formed by pressing the upper end portion 510 of the shielding cover (including the upper end edge 511 of the shielding cover overlapping the lower end portion 410 of the fixing strip) and the lower end portion 410 of the fixing strip together toward the outward surface 311 of the first side panel. As an example, the compressed portion 600 having a thickness less than that of the fixing strip may be formed by pressing the upper end portion 510 of the shielding cover and the lower end portion 410 of the fixing strip toward the outward surface 311 of the first side panel with a predetermined pressure by means of a pressing roller 630. The pressing roller 630 may have a predetermined pattern on its outer circumferential surface, and the pressing roller 630 may apply heat.

[0111] Fig.17 is a block diagram showing steps of a method of manufacturing an absorbent diaper according to another embodiment. Fig.18 is a cross-sectional view schematically showing an example of a step of forming a fixing module, and Fig.19 is a cross-sectional view schematically showing an example of a step of combining and fixing modules. Fig. 20 is a cross-sectional view schematically showing an example of a step of forming a compressed portion. Fig.21 is a plan view schematically showing another example of the steps of forming the fixing module.

[0112] refer to Fig.17 , a method for manufacturing an absorbent diaper according to one embodiment includes a step of forming an absorbent article (step S110), a step of forming a fixing module (step S220), and a step of combining the fixing module (step S230).

[0113] By forming the absorbent article (step S110), Figures 2 to 4 The absorbent article shown. The absorbent article can be referred to as Fig.14 Formed in the manner described.

[0114] refer to Fig.17 and Fig.18 Through the step of forming the fixing module (step S220), the fixing module 800 disposed on the outward surface 311 of each first side panel is formed. Fig. 9 and Fig.10 As shown, the fixing module 800 is configured to be repeatedly fixed to the inward surface 322 of each second side panel, and is formed as a module coupled to the first side panel 310. The fixing module 800 includes a fixing strip 400, a shielding cover 500, and a carrier sheet 710.

[0115] Specifically, the step of forming the fixing module (step S220) includes: providing a carrier sheet (step S221), combining a fixing strip (step S222), and combining a shielding cover (step S223). The step of forming the fixing module (step S220) may be performed in a module production line independent of a main production line that performs the step of forming the absorbent article (step S110), and the fixing module formed in the module production line may be supplied to the main production line.

[0116] Through the step of providing a carrier sheet (step S221), a carrier sheet 710 for holding the fixing strip 400 and the shielding cover 500 may be supplied to the module production line. The carrier sheet material may be cut at a predetermined length suitable for holding the fixing strip and the shielding cover, thereby providing the carrier sheet 710.

[0117] refer to Fig.17 and Fig.18 , by the step of bonding the fixing strip (step S222), the fixing strip 400 is bonded to the outward surface 711 of the carrier sheet along the longitudinal direction MD. The fixing strip 400 is configured to be repeatedly fixedly engaged with the inward surface of the second side panel. The fixing strip 400 has a lower end edge 411 and an upper end edge 421 spaced apart along the longitudinal direction MD. As an example, when conveying a fixing strip material that can be cut into one fixing strip, an adhesive layer 440 can be applied to one surface of the fixing strip material by a slot die coating method. After the fixing strip material on which the adhesive layer 440 is formed is cut into one fixing strip 400, the one fixing strip 400 can be bonded to the outward surface 711 of the carrier sheet.

[0118] refer to Fig.17 and Fig.18 , through the step of bonding the shielding cover (step S223), the shielding cover 500 is bonded to the outward surface 711 of the carrier sheet so as to cover the lower end portion 410 of the fixing strip. The shielding cover 500 partially covers the fixing strip 400. Specifically, the shielding cover 500 is bonded to the outward surface 711 of the carrier sheet so as to cover the lower end portion 410 of the fixing strip having the lower end edge 411. As an example, when conveying a shielding cover material that can be cut into one shielding cover, an adhesive layer 550 can be applied to one surface of the shielding cover material by a slot die coating method. After the shielding cover material having the adhesive layer 550 formed thereon is cut into one shielding cover 500, the one shielding cover 500 can be bonded to the outward surface 711 of the carrier sheet so as to cover the lower end portion 410 of the fixing strip. The bonding of the shielding cover 500 may be assisted by rollers so that the shielding cover 500 may be bonded to the securing strip 400 and the outwardly facing surface 711 of the carrier sheet.

[0119] refer to Fig.17 and Fig.19 , after the step of forming the fixing module (step S220), the step of bonding the fixing module is performed (step S230). The fixing module 800 manufactured in the module production line can be fed to the main production line for manufacturing absorbent articles, and the fixing module 800 can be bonded to the outward surface 311 of each first side panel. As an example, an adhesive is applied to the inward surface 712 of the carrier sheet 710, and the inward surface 712 of the carrier sheet is bonded to the outward surface 311 of the first side panel by the adhesive, thereby bonding the fixing module to the outward surface 311 of the first side panel. Therefore, the fixing module 800 of the carrier sheet 710 including the retaining fixing strip 400 and the shielding cover 500 is bonded to the first side panel 310, thereby making, for example, according to Fig. 9 An absorbent diaper according to one embodiment is shown.

[0120] In the method of manufacturing an absorbent diaper according to one embodiment, a compression portion capable of increasing an effective fixing area of ​​the first side panel and the second side panel may be formed in the fixing module. Fig.17 and Fig. 20 The step of forming the fixing module (step S220) may include the step of forming a compression portion (step S224). By forming the compression portion (step S224), for example, a Fig.11 and Fig.12 Through the step of forming the compressed portion (step S224), a compressed portion 600 is formed between the shielding cover 500 and the fixing strip 400 and is recessed toward the outward surface 711 of the carrier sheet. Fig.11 and Fig.12 As shown, the compressed portion 600 extends so as to include the upper end edge 511 of the shielding cover. The compressed portion 600 is formed by pressing the upper end portion 510 of the shielding cover (having the upper end edge 511 of the shielding cover overlapping the lower end portion 410 of the fixing strip) and the lower end portion 410 of the fixing strip together toward the outward surface 711 of the carrier sheet. As an example, the compressed portion 600 having a thickness less than that of the fixing strip may be formed by pressing the upper end portion 510 of the shielding cover and the lower end portion 410 of the fixing strip in the lateral direction toward the outward surface 711 at a predetermined pressure by means of a pressing roller 630. The pressing roller 630 may have a predetermined pattern on its outer circumferential surface, and the pressing roller 630 may apply heat.

[0121] Fig.21 is a plan view schematically showing another example of the steps of forming a fixing module. Fig.17 and Fig.21, one fixing module 800 may be formed by combining a plurality of fixing strips and a plurality of shielding covers into one sheet and then cutting the one sheet according to the number of fixing strips.

[0122] The step of providing a carrier sheet (step S211) performed in the above-mentioned module production line includes the step of providing a carrier substrate 720 on which a plurality of fixing strips 400 can be arranged. One carrier substrate 720 can be formed into a plurality of fixing modules by cutting according to the number of the plurality of fixing strips 400. As an example, one carrier substrate 720 capable of accommodating a plurality of fixing modules can be provided. When the carrier substrate material is transported, the carrier substrate material can be cut into one carrier substrate 720.

[0123] The step of bonding the fixing strips (step S222) includes the step of bonding the plurality of fixing strips 400 to the outward surface 721 of the carrier substrate 720. As an example, four fixing strips 400 may be bonded to the outward surface 721 of the carrier substrate 720 by an adhesive. The outward surface 721 of the carrier substrate may have four equally divided bonding areas, and the four fixing strips 400 may be bonded to the corresponding bonding areas of the outward surface 721 in the form of a 2×2 matrix. The number of bonding areas of the outward surface 721 of the carrier substrate is not limited to four, and an even number of bonding areas may be formed on the outward surface 721 of the carrier substrate.

[0124] The step of bonding the shielding cover (step S223 ) includes the step of bonding one shielding cover 500 to the outward surface 721 of the carrier substrate so as to cover the lower end portions 410 of the two or more fixing strips. Fig.21 The shielding cover 500 shown has a Fig.18 The shade cover is shown in a longer length.

[0125] After the step of bonding the shielding cover (step S223), one carrier substrate 720 may have four fixing strips 400 and two shielding covers 500. Therefore, the step of forming the fixing module (step S220) includes the step of cutting the carrier substrate 720 to which the fixing strips 400 and the shielding covers 500 are bonded according to the number of the plurality of fixing strips 400. As an example, the carrier substrate 720 may be formed at Fig.21 The first side panel is cut at the cut line 722 shown, thereby forming a fixed module 800 configured with a fixed strip, a cover and a carrier sheet. A fixed module 800 cut from the carrier substrate 720 can be supplied to the main production line for manufacturing absorbent articles and can be bonded to the outward surface of the first side panel by an adhesive. Before cutting the carrier substrate 720, as shown in FIG. Fig. 20 The compression portion shown may be formed between each fixing strip and each shade cover by a pressing roller.

[0126] So far, the technical idea of ​​the present disclosure has been described with reference to some embodiments and examples shown in the accompanying drawings. However, it should be understood that various substitutions, modifications and changes can be made without departing from the technical idea and scope of the present disclosure, and those of ordinary skill in the technical field to which the present disclosure belongs can understand these substitutions, modifications and changes. In addition, it should be understood that these substitutions, modifications and changes fall within the scope of the attached claims.

Claims

1. An absorbent diaper comprising: an absorbent structure defining a first waist region, a crotch region, and a second waist region in a longitudinal direction, and wherein the absorbent structure is configured to absorb body exudates of a wearer; a pair of first side panels, each first side panel extending from the absorbent structure in a transverse direction at the first waist region and being stretchable in the transverse direction; a pair of second side panels, each of said second side panels extending from said absorbent structure in said transverse direction at said second waist region and being stretchable in said transverse direction; a fixing strip configured to be repeatedly fixedly engaged with the inward surface of each of the second side panels, the fixing strip having a lower end edge and an upper end edge spaced apart along the longitudinal direction, and the fixing strip being disposed along the longitudinal direction on the outward surface of each of the pair of the first side panels; and A shielding cover is provided on the outward surface of each of the first side panels to cover the lower end portion of the fixing strip having the lower end edge.

2. The absorbent diaper according to claim 1, wherein: Each of the first side panels has a first leg edge that partially surrounds the wearer's legs and a first waist edge that partially surrounds the wearer's waist, and Wherein, the lower end edge of the fixing strip is positioned adjacent to the first leg edge, and the upper end edge of the fixing strip is positioned adjacent to the first waist edge.

3. The absorbent diaper according to claim 2, wherein: The first leg edge has a notched portion formed between an inner end edge of the barrier cover and the absorbent structure and recessed toward the first waist edge.

4. The absorbent diaper according to claim 1, further comprising: A compressed portion is recessed toward the outward surface of each first side panel between the shade cover and the securing strip, and includes the upper end edge of the shade cover overlapping the lower end portion of the securing strip.

5. The absorbent diaper according to claim 4, wherein: The compressed portion is configured to have a first compressed portion and a second compressed portion, the first compressed portion and the second compressed portion being compressed together and overlapping each other toward an outward surface of each of the first side panels, and The first compressed portion includes a portion of an upper end portion of the shielding cover, the upper end portion having the upper end edge of the shielding cover, and the second compressed portion includes a portion of the lower end portion of the fixing strip.

6. The absorbent diaper according to claim 5, wherein: The compressed portion forms a concave groove between the securing strip and the shade cover, the concave groove being oriented along the transverse direction and concave toward the outwardly facing surface of each of the first side panels.

7. The absorbent diaper according to claim 4, wherein: The compressed portion has a width defined in a direction perpendicular to the upper end edge of the shielding cover.

8. The absorbent diaper according to claim 4, wherein: Each of the second side panels has a second leg edge that partially surrounds the wearer's leg, and wherein each of the second side panels is configured such that when the first side panel and the second side panel are secured, a portion of the second leg edge is positioned within the compressed portion.

9. The absorbent diaper according to claim 1, further comprising: a carrier sheet interposed between the securing strip and the outwardly facing surface of each of the first side panels and between the barrier cover and the outwardly facing surface of each of the first side panels, and the carrier sheet is configured to retain the securing strip and the barrier cover, Wherein, the carrier sheet is configured to accommodate the entire fixing strip and the entire shielding cover.

10. The absorbent diaper according to claim 9, wherein: The securing strip, the shade cover and the carrier sheet constitute a securing module that is attachable to the outwardly facing surface of each of the first side panels and is repeatedly secureable to the inwardly facing surface of each of the second side panels.

11. The absorbent diaper according to claim 9, further comprising: a compressed portion, which is recessed toward the outward surface of the carrier sheet between the shielding cover and the fixing strip, and which includes the upper end edge of the shielding cover overlapping the lower end portion of the fixing strip, Wherein, the compressed portion is defined between two side edges of the carrier sheet.

12. The absorbent diaper according to claim 11, wherein: Each of the second side panels has a second leg edge that partially surrounds the wearer's leg, and wherein each of the second side panels is configured such that when the first side panel and the second side panel are secured, a portion of the second leg edge is positioned within the compressed portion.

13. The absorbent diaper according to claim 9, wherein: Each of the first side panels has a first leg edge that partially surrounds the wearer's legs and a first waist edge that partially surrounds the wearer's waist, and The first leg edge has a notch portion, which is formed between the inner end edge of the carrier sheet and the absorbent structure and is recessed toward the first waist edge.

14. The absorbent diaper according to claim 1, wherein: The fastening strip includes a plurality of hook-type fasteners.

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