Absorbent article with absorbent chassis and tape bond arrangements and frangible pathways
By designing a breakable pathway and absorbent infrastructure in the waist area of the absorbent products, the problems of unhygienic and inconvenience in the removal process of traditional absorbent products are solved, and a simpler and more sanitary treatment method of diaper pants is achieved.
Patent Information
- Application Number
- CN202380049116.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-12-14
- Filing Date
- 2023-06-27
- Publication Date
- 2025-02-11
AI Technical Summary
Existing absorbent articles are unhygienic and inconvenient during removal, especially when children stand, removal and disposal of traditional diaper forms is difficult to achieve.
An absorbent article with a breakable pathway is designed which comprises an absorbent infrastructure and a adhesive structure in the front waist area and/or the rear waist area. The article helps maintain connection and alleviates resistance during removal by means of a specific arrangement of adhesive between the base structure and the tape.
The connection between the infrastructure and the belt is achieved during use, simplifying the removal and disposal of diaper pants, and avoiding the phenomenon of feces being applied along the legs.
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Figure CN119421679A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to absorbent articles, and more particularly, to absorbent articles having an absorbent chassis and adhesive structures in the front and / or rear waist regions that include one or more breakable pathways. Background Art
[0002] Some absorbent articles have components that include elastomeric laminates. Such elastomeric laminates may include an elastic material bonded to one or more nonwovens. The elastic material may include an elastic film and / or an elastic strand. In some laminates, multiple elastic strands are joined to the nonwoven when the multiple strands are in a stretched state, so that when the elastic strands relax, the nonwoven gathers and then forms corrugations and roughness. The resulting elastomeric laminate can be stretched to the extent that the corrugations allow the elastic strands to extend.
[0003] Absorbent articles in the form of diaper pants may also be constructed with an absorbent infrastructure connected to front and rear elastic bands, wherein the opposite end regions of the front and rear bands are connected to each other at the side seams. In some cases, the elasticity of the front and rear bands is removed in the region where the infrastructure is connected to these bands. Therefore, in some conversion processing configurations suitable for assembling such diaper pants, stretched elastic strands are glued between two continuous nonwoven webs to form an elastic laminate. The elastic strand area can then be intermittently disabled along the length of the elastic laminate by cutting the elastic strands in the region to be connected to the infrastructure (sometimes referred to as raised elastic cutting).
[0004] Some caregivers of larger incontinent infants or toddlers may prefer closed pants type disposable absorbent articles, so that they can be applied to children and removed from children when they are in a standing position. A shortcoming of this product form is that the removal and disposal of feces-containing products may be unsanitary and inconvenient. For example, pulling the product downwards may cause feces to be smeared along the legs of the user. In other examples, the caregiver can use force to tear the adhesive side. Then, the force used can cause energy to be quickly released from the diaper, thereby causing the caregiver to lose control of the product and allow feces to overflow. In contrast, when the child lies on his back, the removal and disposal of the traditional opening or adhesive diaper form with fasteners can be easily achieved. In this case, the fastener is opened, the diaper is removed from the child, rolled into a roughly cylindrical shape, and then the fastener is fixed around the rolled soiled diaper, thereby closing the leg opening for sanitary disposal.
[0005] In order to avoid having to remove the soiled diaper pants from the wearer by sliding the soiled diaper pants down along the wearer's legs or tearing the adhesive side seams, some diaper pants can be configured with tear lines in the front or back bands. Such tear lines can include perforations that allow the caregiver to more easily separate the band along the perforation lines. Once the band is separated, the diaper pants can be more easily removed from the wearer without having to slide the diaper pants down along the wearer's legs in a manner similar to the traditional open adhesive diaper form. However, such tear lines can weaken the band, which can cause unintentional tearing and / or band failure during the use of the diaper pants. In addition, some configurations of the tear line can also extend across the region bonded to the absorbent infrastructure of the front or back bands. Therefore, the adhesive bonding the band to the absorbent infrastructure can hinder the user's ability to easily separate the band along the perforation lines in these regions. In addition, the configuration of such adhesives can also result in the unintentional separation of the band from the absorbent infrastructure during the use of the diaper pants.
[0006] It would therefore be beneficial to form a pant-type article having a bonding arrangement between the absorbent chassis and the belt that helps maintain the connection between the chassis and the belt during use and also helps alleviate resistance to the user's ability to tear the belt along a frangible path when removing the diaper pants for disposal. Summary of the invention
[0007] In one form, an absorbent article comprises: a first belt, the first belt including an inner surface facing the wearer and an outer surface facing the garment, the first belt also including a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outward of the inner edge; a second belt, wherein laterally opposite ends of the second belt are connected to laterally opposite ends of the first belt at first side seams and second side seams to form a waist opening; a chassis, the chassis comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the chassis comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein longitudinally opposite end regions of the chassis are connected to the first belt and the second belt; wherein a portion of the chassis overlaps the wearer-facing inner surface of the first belt to define a chassis overlap region, wherein the chassis overlap region comprises an adhesive a first adhesive zone extending laterally outwardly from the third adhesive zone across the overlap zone and between the first adhesive zone and the second adhesive zone; a second adhesive zone extending laterally outwardly from the third adhesive zone across the overlap zone and between the first adhesive zone and the second adhesive zone in opposite directions; and a third adhesive zone extending longitudinally between the first adhesive zone and the second adhesive zone.
[0008] In another form, an absorbent article comprises: a first belt, the first belt comprising an inner surface facing the wearer and an outer surface facing the garment, the first belt further comprising a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outward of the inner edge; a second belt, wherein laterally opposite ends of the second belt are connected to laterally opposite ends of the first belt at first side seams and second side seams to form a waist opening; a chassis, the chassis comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the chassis comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein longitudinally opposite end regions of the chassis are connected to the first belt and the second belt; wherein a portion of the chassis overlaps with the wearer-facing inner surface of the first belt to define a chassis overlap region, wherein the chassis overlap region comprises a region wherein an adhesive bonds the chassis to the wearer-facing inner surface of the first belt. An adhesive zone permanently bonded to an inner surface of a wearer, wherein the first adhesive zone includes a first adhesive area adjacent to the inner edge of the first band, a second adhesive area adjacent to the first end edge of the base structure, and a third adhesive area longitudinally positioned between the first adhesive area and the second adhesive area; wherein the adhesive zone is constructed to define a first pocket area and a second pocket area, wherein the first pocket area extends longitudinally between the first adhesive area and the second adhesive area and extends laterally between the third adhesive area and the first side edge of the base structure, and wherein the second pocket area extends longitudinally between the first adhesive area and the second adhesive area and extends laterally between the third adhesive area and the second side edge of the base structure, wherein no adhesive permanently connects the base structure to the first band in the overlap area in the first pocket area and the second pocket area; wherein the first band is releasably bonded to the base structure in the first pocket area and the second pocket area; and a breakable path extending across the first pocket area.
[0009] In yet another form, an absorbent article comprises: a first belt comprising an inner surface facing the wearer and an outer surface facing the garment, the first belt further comprising a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outward of the inner edge; a second belt, wherein laterally opposite ends of the second belt are connected to laterally opposite ends of the first belt at a first side seam and a second side seam to form a waist opening; a chassis comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the chassis comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein longitudinally opposite end regions of the chassis are connected to the first belt and the second belt; wherein a portion of the chassis is connected to The wearer-facing inner surface of the first band overlaps to define a chassis overlap region, wherein the chassis overlap region includes an adhesion region, wherein an adhesive is positioned between the chassis and the wearer-facing inner surface of the first band; wherein the adhesion region includes a first adhesion area adjacent to the inner edge of the first band, a second adhesion area adjacent to the first end edge of the chassis, and a third adhesion area longitudinally positioned between the first adhesion area and the second adhesion area; a frangible path extending laterally outward from the third adhesion area across the overlap region and between the first adhesion area and the second adhesion area, wherein the first frangible path does not extend across the third adhesion area; and a first fastener component connected to the wearer-facing inner surface of the first band in the overlap region and outside the adhesion region.
[0010] In yet another form, a method for assembling an absorbent article comprises the steps of providing a first elastic laminate comprising an elastic strand positioned between and connected to a first substrate and a second substrate, the elastic strand extending in a longitudinal direction, the first elastic laminate further comprising a first edge separated from a second edge in a transverse direction; providing a second elastic laminate; applying an adhesive to the first elastic laminate to define an adhesion zone; providing a chassis comprising a body-facing surface and a garment-facing surface and an absorbent core positioned between the body-facing surface and the garment-facing surface, the chassis further comprising a first end edge and a second end edge; A second end edge is separated from the first end edge in the transverse direction by a crotch region; and a base structure is bonded to a first elastic laminate using an adhesive in an adhesion area; wherein the adhesion area includes a first adhesion area adjacent to the second edge of the elastic laminate, a second adhesion area adjacent to the first end edge of the base structure, and a third adhesion area longitudinally positioned between the first adhesion area and the second adhesion area, and wherein the first adhesion area includes a first width, the second adhesion area defines a second width, and the third adhesion area defines a third width, and wherein the third width is less than the first width and the second width; and the second end area of the base structure is bonded to the second elastic laminate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A perspective view of a diaper pant is shown in a pre-fastened configuration.
[0012] Figure 1A A perspective view of a diaper pant with a continuous outer cover in a pre-fastened configuration is shown.
[0013] Figure 2A A plan view of a diaper pant is shown with the portion of the diaper facing away from the wearer oriented towards the viewer.
[0014] Figure 2B A plan view of a diaper pant is shown with the wearer-facing portion of the diaper oriented toward the viewer.
[0015] Figure 2C A plan view of a diaper pant is shown with the portion of the diaper facing away from the wearer oriented toward the viewer, illustrating the size and shape features of the first and second belts.
[0016] Figure 2D A plan view of a diaper pant is shown with the portion of the diaper facing away from the wearer oriented toward the viewer, illustrating the size and shape features of the first and second belts.
[0017] Figure 2EA plan view of a diaper pant is shown with the portion of the diaper facing away from the wearer oriented toward the viewer, illustrating the size and shape features of the first and second belts.
[0018] Figure 2F A plan view of a diaper pant with a continuous outer cover is shown with the portion of the diaper facing away from the wearer oriented toward the viewer.
[0019] Figure 3 Taken along line 3-3 Figure 2A A cross-sectional view of a diaper pant is shown, showing a first elastic belt and a second elastic belt provided with a panel.
[0020] Figure 3A Detailed view of a cross section of a first belt provided with plies, one ply being folded over another ply.
[0021] Figure 3A1 Detailed cross-sectional view of another exemplary configuration in which a first belt is provided with plies where one ply is folded over another ply.
[0022] Figure 3A2 Detailed cross-sectional view of another exemplary configuration in which a first belt is provided with plies where one ply is folded over another ply.
[0023] Figure 3B Detailed view of a cross section of a first belt provided with plies, wherein a second ply is folded over another ply.
[0024] Figure 3C Taken along line 3C-3C Figure 2F A cross-sectional view of a diaper pant of FIG. 1 showing a first elastic belt and a second elastic belt provided with a sheet layer and a continuous outer cover.
[0025] Figure 4A is a perspective view of a diaper pant including a breakable path in the front belt adjacent to the absorbent chassis.
[0026] Figure 4B for Figure 4A A perspective view of a diaper pant of , showing a front belt that has been torn along one of the frangible paths.
[0027] Figure 4C for Figure 4A A perspective view of a diaper pant of , showing a front belt that has been torn along two frangible paths.
[0028] Figure 5A Shows Figure 4C A diaper pant which is rolled up on itself in the longitudinal direction.
[0029] Figure 5B Shows Figure 5AA diaper pant of the type described herein wherein the fastener components are coupled to the backsheet of the chassis to hold the diaper pant in a disposal configuration.
[0030] Fig. 6A A perspective view of a diaper pant with a breakaway path.
[0031] Figure 6B for Fig. 6A Front plan view of diaper pants.
[0032] Fig.6B1 is a front plan view of another configuration of a diaper pant with a breakaway path having a distal end positioned on a side seam and a proximal end.
[0033] Figure 6C Shows that when the first breakable path is torn Figure 6B Front plan view of diaper pants.
[0034] Fig.6D Shows Figure 6C A front plan view of the diaper pants after the first breakable path has been completely torn.
[0035] Fig. 6E Shows that when the second breakable path is torn Fig.6D Front plan view of diaper pants.
[0036] Fig. 6F Shows Fig. 6E A front plan view of the diaper pants after the second breakable path has been completely torn.
[0037] Fig. 7A Detailed view of the fastener component configuration.
[0038] Figure 7AA1 Taken along line 7AA-7AA Fig. 7A A cross-sectional view of a fastener component.
[0039] Figure 7AA2 Taken along line 7AA-7AA Fig. 7A A cross-sectional view of a fastener component of the embodiment of the present invention, wherein the fastener component is integrally formed from a belt component.
[0040] Figure 7B A detailed view of another fastener component configuration.
[0041] Figure 7C A front plan view of a diaper is shown with another configuration of fastener components, accessible openings and frangible paths.
[0042] Fig.7D for Figure 7C Detailed view of fastener component configuration shown.
[0043] Fig. 7E Shows that when the first breakable path is torn Figure 6B Front plan view of diaper pants.
[0044] Figure 7F A front plan view of a diaper with another configuration of a breakaway is shown.
[0045] Fig. 8A Shows Figure 6B Front plan view of a diaper pant showing various positional relationships to the chassis-tape attachment areas.
[0046] Figure 8B Shows Figure 6B Front plan view of a diaper pant showing various positional relationships with the chassis-tape attachment areas.
[0047] Figure 8C Schematic diagram of the diaper pants assembly process.
[0048] Fig. 9 Shows Figure 6B 2. A front plan view of a diaper pant showing various positional relationships of the elastic material in the first belt. DETAILED DESCRIPTION
[0049] definition
[0050] The following term explanations may help understand the present disclosure:
[0051] "Absorbent article" refers to a device that absorbs and contains body exudates, and more specifically, refers to a device that fits against or adjacent to the wearer's body to absorb and contain the various exudates discharged from the body. Exemplary absorbent articles include diapers, training pants, pull-on diapers (i.e., diapers with preformed waist and leg openings such as shown in U.S. Pat. No. 6,120,487), refastenable diapers or pant diapers, incontinence briefs and undergarments, diaper holders and liners, feminine hygiene undergarments such as panty liners, absorbent inserts, catamenial pads, and the like.
[0052] "Body-facing" and "garment-facing" refer to the relative position of an element or the relative position of surfaces of an element or a group of elements, respectively. "Body-facing" means that an element or surface is closer to the wearer than some other element or surface during wear. "Garment-facing" means that an element or surface is farther from the wearer than some other element or surface during wear (i.e., the element or surface is near the wearer's clothing, which may be worn over a disposable absorbent article).
[0053] The terms "elastic," "elastomeric," or "elastomeric" refer to materials that exhibit elastic properties, including any material that can be stretched or elongated to an elongation of more than 10% of its original length when a force is applied to its relaxed original length, and will substantially recover to about its original length when the applied force is released. Elastomeric materials may include elastomeric films, scrims, nonwovens, ribbons, strands, and other sheet-like structures.
[0054] As used herein, the term "joined" includes configurations in which an element is directly secured to another element by attaching it directly to the other element, as well as configurations in which an element is indirectly secured to another element by attaching it to an intermediate member which is in turn attached to the other element.
[0055] As used herein, the term "distal" is used to describe a location located away from the center of the body or away from a point of attachment, and the term "proximal" is used to describe a location located closer to the center of the body or a point of attachment.
[0056] The term "substrate" is used herein to describe a material that is primarily two-dimensional (i.e., in the XY plane) and whose thickness (in the Z direction) is relatively small (i.e., 1 / 10 or less) compared to its length (in the X direction) and width (in the Y direction). Non-limiting examples of substrates include fiber webs, one or more layers of fiber materials, nonwovens, films, and foils such as polymer films or metal foils. These materials may be used alone or may include two or more layers laminated together. Thus, a fiber web is a substrate.
[0057] The term "nonwoven" herein refers to a material made of continuous (long) filaments (fibers) and / or discontinuous (short) filaments (fibers) by processes such as spunbonding, meltblowing, carding, etc. Nonwovens do not have a woven or knitted filament pattern.
[0058] The term "machine direction" (MD) is used herein to refer to the direction of material flow during a process. In addition, the relative placement and movement of materials can be described as flowing through a process in the machine direction from upstream in the process to downstream in the process.
[0059] The term "cross direction" (CD) is used herein to refer to a direction generally perpendicular to the machine direction.
[0060] "Pre-strain" refers to the strain applied to an elastic or elastomeric material before combining it with an elastomeric laminate or another element of an absorbent article. Pre-strain is determined by the following formula: Pre-strain = ((elastic relaxed length of elastic component) / relaxed length of elastic component)*100.
[0061] "Decitex", also known as Dtex, is a measurement used in the textile industry for measuring yarn or filaments. 1 dtex = 1 gram / 10,000 meters. In other words, if 10,000 linear meters of a yarn or filament weighs 500 grams, the yarn or filament will have 500 dtex.
[0062] The term "taped diaper" (also known as an "open diaper") refers to a disposable absorbent article that has an initial front waist region and an initial rear waist region that are not fastened, not prefastened, or not connected to each other when packaged before being put on the wearer. The taped diaper can be folded about a lateral centerline with the interior of one waist region contacting the interior of the opposite waist region in a surface-to-surface manner without fastening or joining the waist regions together. and 6,861,571; and U.S. Patent Publication Nos. 2013 / 0072887A1, 2013 / 0211356A1, and 2013 / 0306226A1, all of which are incorporated herein by reference.
[0063] The term "pants" (also referred to as "training pants," "pre-closed diapers," "diaper pants," "pant diapers," and "pull-on diapers") refers herein to disposable absorbent articles designed for infants or adult wearers having a continuous peripheral waist opening and continuous peripheral leg openings. Pants can be constructed with a continuous or closed waist opening and at least one continuous closed leg opening before the wearer puts on the article. Pants can be preformed or prefastened using a variety of techniques, including but not limited to joining the parts of the article together using any refastenable closure member and / or permanent closure member (e.g., sewing, heat bonding, pressure welding, adhesives, cohesive bonding, mechanical fasteners, etc.). Pants can be preformed anywhere along the circumference of the article in the waist region (e.g., side fastened or seamed, front waist fastened or seamed, rear waist fastened or seamed). Exemplary diaper pants of various configurations are disclosed in U.S. Patents 4,940,464, 5,092,861, 5,246,433, 5,569,234, 5,897,545, 5,957,908, 6,120,487, 6,120,489, 7,569,039 and U.S. Patent Publications 2003 / 0233082 A1, 2005 / 0107764 A1, 2012 / 0061016 A1, 2012 / 0061015 A1, 2013 / 0255861 A1, 2013 / 0255862 A1, 2013 / 0255863 A1, 2013 / 0255864 A1 and 2013 / 0255865 A1, all of which are incorporated herein by reference.
[0064] "Closed" means that the opposing waist regions are permanently or refastenably joined when encapsulated to form a continuous waist opening and leg openings.
[0065] "Open" means that the opposing waist regions are not initially joined to form a continuous waist opening and leg openings before or during application of the article to the wearer, but rather include a closure device (such as a fastening system) to join the waist regions to form a waist opening and leg openings.
[0066] The present disclosure relates to absorbent articles including elastic laminates, and more specifically, to absorbent articles having elastic laminates in front waist regions and / or back waist regions with breakable paths. In some configurations, an absorbent article may include: a first belt and a second belt. The first belt may include an inner surface facing the wearer and an outer surface facing the garment, an inner edge extending laterally, and an outer edge extending laterally, the outer edge being positioned longitudinally outward of the inner edge. The lateral opposite ends of the second belt may be connected to the lateral opposite ends of the first belt at the first side seam and the second side seam to form a waist opening. The absorbent article may also include a base structure, the base structure including a top sheet, a back sheet, and an absorbent core positioned between the top sheet and the back sheet, and the longitudinal opposite end regions of the base structure are connected to the first belt and the second belt. A portion of the base structure overlapping with the inner surface facing the wearer of the first belt may define a base structure overlap region, wherein the base structure overlap region includes an adhesive region, wherein an adhesive is positioned between the base structure and the inner surface facing the wearer of the first belt and the base structure is permanently bonded to the first belt. The adhesive zone may include a first adhesive region adjacent the inner edge of the first tape, a second adhesive region adjacent the first end edge of the chassis, and a third adhesive region longitudinally positioned between the first adhesive region and the second adhesive region.
[0067] In some configurations, the adhesive zone may define a separable zone or region, which may or may not be in the form of a pocket. In some configurations, the adhesive zone may be configured to define a first pocket zone and a second pocket zone, wherein the first pocket zone extends longitudinally between the first adhesive zone and the second adhesive zone and extends laterally between the third adhesive zone and the first side of the infrastructure, and wherein the second pocket zone extends longitudinally between the first adhesive zone and the second adhesive zone and extends laterally between the third adhesive zone and the second side of the infrastructure. In some configurations, no adhesive may permanently connect the infrastructure with the first band in the overlapping region in the first pocket zone and the second pocket zone. The first band may be releasably bonded to the infrastructure in the first pocket zone and the second pocket zone. In some configurations, the first adhesive zone includes a first lateral width, the second adhesive zone defines a second lateral width, and the third adhesive zone defines a third lateral width, and wherein the third lateral width is less than the first lateral width and the second lateral width. The first breakable path and the second breakable path in the first band may extend laterally outwardly from the third adhesion area in opposite directions across the overlap area and between the first adhesion area and the second adhesion area. In some configurations, the first breakable path and / or the second breakable path may extend across at least a portion of the first pocket area and / or the second pocket area.
[0068] As discussed below, the adhesive arrangements herein can be configured to help ensure that the chassis remains connected to the first and second belts during use while mitigating obstacles to the user's ability to initiate and complete tearing of the first and / or second belts along a frangible path during removal of the diaper pants from the wearer.
[0069] Figures 1 to 2B An example of an absorbent article 100 in the form of a diaper pant 100P is shown that may include components constructed according to the configurations disclosed herein. Specifically, Figure 1 A perspective view of a diaper pant 100P is shown in a pre-fastened configuration. Figure 2A shows a plan view of a diaper pant 100P in which the portion of the diaper facing away from the wearer is oriented toward the viewer, and Figure 2B A plan view of a diaper pant 100P is shown with the wearer-facing portion of the diaper oriented toward the viewer. The diaper pant 100P includes a chassis 102 and an annular elastic belt 104. As described in more detail below, a first elastic belt 106 and a second elastic belt 108 are bonded together to form the annular elastic belt 104.
[0070] Continue to refer to Figures 1 to 2B , the diaper pants 100P and the chassis 102 each include a first waist region 116, a second waist region 118, and a crotch region 119 disposed between the first waist region and the second waist region. It can also be described that the chassis 102 includes a first end region 116a, a second end region 118a, and a crotch region 119 disposed between the first end region 116a and the second end region 118a. The first waist region 116 can be configured as a front waist region, and the second waist region 118 can be configured as a rear waist region. The diaper 100P may also include a laterally extending front waist edge 121 in the front waist region 116 and a longitudinally opposite and laterally extending rear waist edge 122 in the rear waist region 118. To provide a frame of reference for this discussion, Figure 2A and Figure 2B A diaper 100P and chassis 102 are shown having a longitudinal axis 124 and a lateral axis 126. In some embodiments, the longitudinal axis 124 may extend through the front waist edge 121 and through the back waist edge 122. And the lateral axis 126 may extend through a first longitudinal or right side edge 128 and a second longitudinal or left side edge 130 of the chassis 102. As previously mentioned, the longitudinal axis 124 extends perpendicularly through the front waist edge 121 and the back waist edge 122, and the lateral axis 126 extends perpendicular to the longitudinal axis 124. When the diaper pant 100P is worn, the longitudinal direction may extend from the wearer's front waist through the crotch to the wearer's back waist. To provide another frame of reference for this discussion, a diaper pant 100P is shown. Figure 2A , Figure 2B18B, wherein: the first elastic belt 106 includes a longitudinal centerline 124a and a lateral centerline 126a; the second elastic belt 108 includes a longitudinal centerline 124b and a lateral centerline 126b; and the chassis 102 includes a longitudinal centerline 124c and a lateral centerline 126c. The longitudinal centerlines 124a, 124b, 124c are perpendicular to the lateral centerlines 126a, 126b, 126c.
[0071] like Figures 1 to 2B As shown, the diaper pant 100P may include an inner body-facing surface 132 and an outer garment-facing surface 134. The chassis 102 may include a backsheet 136 and a topsheet 138. The chassis 102 may also include an absorbent assembly 140 having an absorbent core 142 disposed between a portion of the topsheet 138 and the backsheet 136. As described in more detail below, the diaper 100P may also include other structures, such as leg elastics and / or leg cuffs to enhance the fit around the wearer's legs.
[0072] like Figure 2A As shown, the perimeter of the chassis 102 can be defined by a first longitudinal side edge 128, a second longitudinal side edge 130, a first laterally extending end edge 144 disposed in the first waist region 116, and a second laterally extending end edge 146 disposed in the second waist region 118. Both side edges 128 and 130 extend longitudinally between the first end edge 144 and the second end edge 146. Figure 2A As shown, the side edges 144 and 146 extending laterally can be located at the longitudinal inner side of the sidewardly extending front waist edge 121 in the front waist region 116 and the sidewardly extending back waist edge 122 in the back waist region 118. In some configurations, the side edges 144 and 146 extending laterally can be co-edged with the sidewardly extending front waist edge 121 in the front waist region 116 and the sidewardly extending back waist edge 122 in the back waist region 118 or be located at their longitudinal outer side. When the diaper pants 100P is worn on the lower body of the wearer, the front waist edge 121 and the back waist edge 122 can surround a part of the waist of the wearer. At the same time, the side edges 128 and 130 can surround at least a part of the legs of the wearer. And the crotch region 119 can generally be positioned between the legs of the wearer, wherein the absorbent core 142 extends from the front waist region 116 through the crotch region 119 to the back waist region 118.
[0073] As previously mentioned, diaper pants 100P may include backsheet 136. Backsheet 136 may also define the outer surface 134 of the base structure 102 facing the garment. Backsheet 136 may also include woven or nonwoven materials, polymer films such as thermoplastic films of polyethylene or polypropylene, and / or include multiple layers or composite materials of film and nonwoven materials. Backsheet may also include elastomeric films. Example backsheet 136 may be a polyethylene film with a thickness of about 0.012mm (0.5 mil) to about 0.051mm (2.0 mil). In addition, backsheet 136 may also allow steam to escape from the absorbent core (that is, backsheet is breathable), while still preventing effluent from penetrating backsheet 136.
[0074] As also described above, the diaper pants 100P may include a top sheet 138. The top sheet 138 may also define all or part of the inner surface 132 of the base structure 102 facing the wearer. In addition, the top sheet 138 may be liquid permeable, thereby allowing liquids (e.g., menstrual fluid, urine and / or loose stools) to penetrate its thickness. The top sheet 138 may be made of various materials, such as woven materials and nonwoven materials; open or hydraulically formed thermoplastic films; open nonwovens, porous foams; reticulated foams; reticulated thermoplastic films; and thermoplastic scrims. Woven materials and nonwoven materials may include natural fibers such as wood fibers or cotton fibers; synthetic fibers such as polyester fibers, polypropylene fibers or polyethylene fibers; or combinations thereof. If the top sheet 138 includes fibers, the fibers may be processed by spunbonding, carding, wet-laid, meltblown, spunlace or other methods known in the art. The top sheet 138 may be selected from high-loft nonwoven top sheets, open-cell film top sheets and open-cell nonwoven top sheets. Exemplary apertured films may include those described in US Pat. Nos. 5,628,097, 5,916,661, 6,545,197, and 6,107,539, all of which are incorporated herein by reference.
[0075] As described above, the diaper pant 100P may also include an absorbent assembly 140 joined to the chassis 102. Figure 2AAs shown, the absorbent assembly 140 may have a front edge 148 extending laterally in the front waist region 116, and may have a rear edge 150 extending longitudinally oppositely and laterally in the rear waist region 118. The absorbent assembly may have a right edge 152 extending longitudinally, and may have a left edge 154 extending laterally oppositely and longitudinally, and these two absorbent assembly side edges 152 and 154 may extend longitudinally between the front edge 148 and the rear edge 150. The absorbent assembly 140 may additionally include one or more absorbent cores 142 or absorbent core layers. The absorbent core 142 may be at least partially arranged between the top sheet 138 and the back sheet 136, and may be formed in various sizes and shapes compatible with diapers. Exemplary absorbent structures used as absorbent cores of the present disclosure are described in U.S. Patents 4,610,678, 4,673,402, 4,888,231 and 4,834,735, all of which are incorporated herein by reference.
[0076] Some absorbent core embodiments may include a fluid storage core that includes a reduced amount of cellulose air felt material. For example, such a core may include less than about 40%, 30%, 20%, 10%, 5% or even 1% cellulose air felt material. Such a core may primarily include an absorbent gelling material having a content of at least about 60%, 70%, 80%, 85%, 90%, 95% or even about 100%, wherein the remainder of the core includes microfiber glue (if applicable). Such cores, microfiber glues and absorbent gelling materials are described in U.S. Patents 5,599,335, 5,562,646, 5,669,894 and 6,790,798 and U.S. Patent Publications 2004 / 0158212A1 and 2004 / 0097895A1, all of which are incorporated herein by reference.
[0077] As previously mentioned, the diaper 100P may also include elasticized leg cuffs 156. It should be understood that the leg cuffs 156 may be and are sometimes referred to as leg circumferences, side wings, barrier cuffs, elastic cuffs, or gasket cuffs. The elasticized leg cuffs 156 may be constructed in various ways to help reduce leakage of body exudates in the leg regions. Exemplary leg cuffs 156 may include those described in U.S. Patents 3,860,003, 4,909,803, 4,695,278, 4,795,454, 4,704,115, 4,909,803, and U.S. Patent Publication 2009 / 0312730A1, all of which are incorporated herein by reference.
[0078] As described above, the diaper pants can be manufactured with the loop elastic band 104 and provided to the consumer in a configuration where the front waist region 116 and the back waist region 118 are connected to each other as packaged before being applied to the wearer. Thus, the diaper pants can have a continuous peripheral waist opening 110 and continuous peripheral leg openings 112, such as Figure 1The looped elastic band may be formed by joining a first elastic band to a second elastic band with permanent side seams or with an openable and reclosable fastening system disposed at or adjacent laterally opposite sides of the bands.
[0079] As previously mentioned, the annular elastic band 104 may be defined by a first elastic band 106 connected to a second elastic band 108. Figure 2A and Figure 2B As shown, the first elastic band 106 extends between the first longitudinal side 111a and the second longitudinal side 111b and defines first and second opposite end regions 106a, 106b and a central region 106c. And the second elastic band 108 extends between the first and second longitudinal side 113a, 113b and defines opposite first and second end regions 108a, 108b and a central region 108c. As measured in the extended state, the distance between the first and second longitudinal side 111a, 111b defines the pitch length PL of the first elastic band 106, and the distance between the first and second longitudinal side 113a, 113b defines the pitch length PL of the second elastic band 108. The central region 106c of the first elastic band is connected to the first waist region 116 or the first end region 116a of the chassis 102, and the central region 108c of the second elastic band 108 is connected to the second waist region 118 or the second end region 118a of the chassis 102. As shown Figure 1 As shown, the first end region 106a of the first elastic belt 106 is connected to the first end region 108a of the second elastic belt 108 at the first side seam 178, and the second end region 106b of the first elastic belt 106 is connected to the second end region 108b of the second elastic belt 108 at the second side seam 180 to define the annular elastic belt 104 and the waist opening 110 and the leg openings 112. It should be understood that the first belt 106 and the second belt 108 can be permanently or refastenably connected to each other at the first side seam 178 and the second side seam 180. The side seams 178, 180 may include permanent bonds, such as heat bonds, pressure bonds, or adhesive bonds, or may be releasable bonds, such as mechanical fasteners or adhesive fasteners.
[0080] like Figure 2A and Figure 2B As shown, the first elastic band 106 also defines an outer side extending edge 107a and an inner side extending edge 107b, and the second elastic band 108 defines an outer side extending edge 109a and an inner side extending edge 109b. The outer edge 107a of the first band 106 is positioned longitudinally outward of the inner edge 107b, and the outer edge 109a of the second band 108 is positioned longitudinally outward of the inner edge 109b. Thus, as shown in FIG. Figure 1As shown, the peripheral edge 112a of one leg opening may be defined by portions of the inboard extending edge 107b of the first elastic belt 106, portions of the inboard extending edge 109b of the second elastic belt 108, and portions of the first longitudinal or right side edge 128 of the chassis 102. And the peripheral edge 112b of the other leg opening may be defined by portions of the inboard extending edge 107b, portions of the inboard extending edge 109b, and portions of the second longitudinal or left side edge 130 of the chassis 102. The outboard laterally extending edges 107a, 109a may also define a front waist edge 121 and a laterally extending back waist edge 122 of the diaper pant 100P.
[0081] It should be understood that the first elastic band 106 and the second elastic band 108 can define different sizes and shapes. In some configurations, the first elastic band 106 and / or the second elastic band 108 can define a curved profile. For example, the inner lateral edges 107b, 109b of the first elastic band 106 and / or the second elastic band 108 can include non-linear portions or curved portions in the first and second end regions relative to each other. Such curved profiles can help define a desired shape for the leg opening 112, for example, a relatively rounded leg opening. In addition to having a curved profile, the elastic bands 106, 108 can also include elastic strands 168 extending along a non-linear path or a curved path, which can correspond to the curved profiles of the inner lateral edges 107b, 109b.
[0082] Figure 2C A configuration is shown in which both the first elastic band 106 and the second elastic band 108 define a generally rectangular shape. Figure 2C As shown, the outer side extending edge 107a of the first elastic band 106 may have a lateral width W1D, and the inner side extending edge 107b may have a lateral width W1P, wherein W1D and W1P are equal or substantially equal. In addition, the outer side extending edge 109a of the second elastic band 108 may have a lateral width W2D, and the inner side extending edge 109b may have a lateral width W2P, wherein W2D and W2P are equal or substantially equal.
[0083] In some configurations, at least one of the first elastic band 106 and the second elastic band 108 can include lateral edges having different lengths. Figure 2D The first elastic band 106 defines a generally rectangular shape (such as reference Figure 2C The outer side extending edge 109a and the inner side extending edge 109b of the second elastic band 108 have different lengths. Figure 2DAs shown, the outer laterally extending edge 109a of the second elastic band 108 may have a lateral width W2D, and the inner laterally extending edge 109b may have a lateral width W2P, wherein W2D is greater than W2P.
[0084] In some configurations, the first elastic band 106 and the second elastic band 108 can each include lateral edges having different lengths. Figure 2E 1 shows a configuration in which the outer side extending edge 107a and the inner side extending edge 107b of the first elastic band 106 have different lengths, and in which the outer side extending edge 109a and the inner side extending edge 109b of the second elastic band 108 have different lengths. Figure 2E As shown, the outer laterally extending edge 107a of the first elastic band 107 may have a lateral width W1D, and the inner laterally extending edge 107b may have a lateral width W1P, wherein W1D is greater than W1P, and wherein the outer laterally extending edge 109a of the second elastic band 108 may have a lateral width W2D, and the inner laterally extending edge 109b may have a lateral width W2P, wherein W2D is greater than W2P.
[0085] Reference FIG. 2C to FIG. 2E , the first elastic band 106 may define a longitudinal length LT1 extending between the outer laterally extending edge 107a and the inner laterally extending edge 107b, and the second elastic band 108 may define a longitudinal length LT2 extending between the outer laterally extending edge 109a and the inner laterally extending edge 109b. In some configurations, LT1 may be equal to LT2. In some configurations, LT1 may be less than or greater than LT2. FIG. 2C to FIG. 2E In some configurations, W1D may be equal to W1P, or W1D may be different from W1P. In some configurations, W2D may be equal to W2P, or W2D may be different from W2P. In some configurations, W1D and / or W1P may be equal to or different from W2D and / or W2P.
[0086] Reference Figure 2A , Figure 2B and Figure 3, the first elastic belt 106 and the second elastic belt 108 may also each include a first substrate 162 and a second substrate 164. The first substrate 162 may be oriented to define at least a portion of the garment-facing surface 115a of the first elastic belt 106 and the garment-facing surface 117a of the second elastic belt 108, and the second substrate 164 may be oriented to define at least a portion of the wearer-facing surface 115b of the first elastic belt 106 and the wearer-facing surface 117b of the second elastic belt 108. The first substrate 162 may extend a maximum length L1 from the proximal edge 162b to the distal edge 162a, and the second substrate 164 may extend a maximum length L2 from the proximal edge 164b to the distal edge 164a. It should be understood that the distal edge 162a and / or the proximal edge 162b of the first substrate 162 may be straight and / or curved and / or may be parallel or non-parallel to each other. It should also be understood that the distal edge 164a and / or proximal edge 164b of the second substrate 164 may be straight and / or curved and / or may be parallel or non-parallel to each other. Therefore, the maximum length L1 refers to the longest distance extending longitudinally between the distal edge 162a and the proximal edge 162b of the first substrate 162, and the maximum length L2 refers to the longest distance extending longitudinally between the distal edge 164a and the proximal edge 164b of the second substrate 164. In some configurations, L1 may be equal to, less than or greater than L2. In some configurations, L1 may be equal to or less than LT1, and L2 may be equal to or less than LT2. In some configurations, the distal edge 162a of the first substrate 162 may define at least a portion of the front waist edge 121 and / or at least a portion of the back waist edge 122, and / or the distal edge 164a of the second substrate 164 may define at least a portion of the front waist edge 121 and / or at least a portion of the back waist edge 122. Thus, in some configurations, the distal edge 162a of the first substrate 162 and / or the distal edge 164a of the second substrate 164 can define at least a portion of the waist opening 110 .
[0087] It should also be understood that the first substrate 162 and / or the second substrate 164 can extend continuously from the first belt 106 to the second belt 108. For example, the first substrate 162 can be configured to define a continuous outer cover 162' extending continuously from the first waist edge 121 to the second waist edge 122, such as Figure 1A , Figure 2F and Figure 3C It should also be understood that Figure 1A , Figure 2F and Figure 3C The illustrated diaper pant 100P with a continuous outer cover may also be configured to include various aspects of the frangible paths and fastener components discussed herein.
[0088] It should be understood that the first substrate 162 and the second substrate 164 may define various lateral widths that may or may not be equal. Figure 2B As shown, the first substrate 162 may extend laterally between the first longitudinal edge 162e and the second longitudinal edge 162f to define a first lateral width W1, and the second substrate 164 may extend laterally between the first longitudinal edge 164e and the second longitudinal edge 164f to define a second lateral width W2.
[0089] In some configurations, the proximal edge 162b of the first substrate 162 and / or the proximal edge 164b of the second substrate 164 can extend laterally across the backsheet 136. Figures 2A to 3 As shown, the first substrate 162 includes a garment-facing surface 162c and an opposite wearer-facing surface 162d, and the second substrate 164 includes a garment-facing surface 164c and an opposite wearer-facing surface 164d.
[0090] In some configurations, the first elastic band 106 and / or the second elastic band 108 may include at least a folded portion of the first substrate 162 and / or the second substrate 164. For example, Figure 3A and Figure 3B As shown, the first elastic band 106 and / or the second elastic band 108 may include a folded portion 162g of the first substrate 162, which extends longitudinally between the fold line 162h and the lateral edge 162i in the first substrate 162. Therefore, the folded portion 162g of the first substrate 162 can be connected to the wearer-facing surface 164d of the second substrate 164. In some configurations, the folded portion 162g of the first substrate 162 can also be connected to and / or overlap the base structure 102. In some configurations, the folded portion 162g of the first substrate 162 can also be connected to the wearer-facing surface 162d of the first substrate 162. In some configurations, a portion of the folded portion 162g of the first substrate 162 may not be bonded to the base structure 102 and / or the second substrate 164, thereby forming a pocket with an opening oriented toward the lateral centerline 162c of the base structure 102. In another example, the first elastic band 106 and / or the second elastic band 108 may include a folded portion of the second substrate 164 that extends longitudinally between a fold line in the second substrate 164 and a lateral edge. Thus, the folded portion of the second substrate 164 may be connected to the garment-facing surface 162c of the first substrate 162. Thus, in some configurations, the fold line of the first substrate 162 and / or the fold line of the second substrate 164 may define at least a portion of the waist opening 110. It should be understood that various waist configurations may be used. For example, as Figure 3A1 As shown, the folded portion 162g can be sandwiched between the second substrate 164 and the backsheet 136. Figure 3A2In another example shown, the second substrate 164 may be sandwiched between the folded portion 162g and the backsheet 136. Figure 3A1 and Figure 3A2 The configuration of the first strap 106 is shown, but it should be understood that such a configuration may be applied to the second strap 108 .
[0091] It should be understood that the first elastic band 106 and the second elastic band 108 may contain the same material and / or may have the same structure. In some embodiments, the first elastic band 106 and the second elastic band may contain different materials and / or may have different structures. It should also be understood that the components of the first elastic band 106 and the second elastic band 108 (such as the first substrate 162 and / or the second substrate 164) may be constructed of various materials. For example, the first band and / or the second band may include a first substrate 162 and / or a second substrate 164 that may be made of a material such as a plastic film; an open-cell plastic film; a woven or nonwoven web of the following fibers: a natural material (e.g., wood fiber or cotton fiber), a synthetic fiber (e.g., polyolefin, polyamide, polyester, polyethylene, or polypropylene fiber), or a combination of natural fibers and / or synthetic fibers; or a coated woven or nonwoven web. In some configurations, the first band and / or the second band may include a first substrate 162 and / or a second substrate 164 of a nonwoven web containing synthetic fibers, and may include a stretchable nonwoven. In some configurations, the first elastic belt and the second elastic belt may include an inner hydrophobic non-stretchable nonwoven material and an outer hydrophobic non-stretchable nonwoven material. It should be understood that the belt can be constructed in various ways, such as, for example, disclosed in U.S. Patent Publication No. 2022 / 0142828A1 and Chinese Patent Application No. CN2021 / 077843, both of which are incorporated by reference.
[0092] The elastic material 167 may be positioned between the wearer-facing surface 162d of the first substrate 162 and the garment-facing surface 164c of the second substrate 164. It should be understood that the elastic material 167 may include one or more elastic elements, such as strands, ribbons, elastic films or sheets extending along the length of the elastic band. Figure 2A and Figure 3 As shown, the elastic material 167 can include a plurality of elastic strands 168. In some configurations, the elastic material 167 can be an elastic film used to form a zero strain elastic laminate that includes an elastic film bonded to one or more nonwoven layers and then subjected to a mechanical deformation or activation sufficient to weaken the nonwoven layers and enable the laminate to elastically stretch and recover.
[0093] It should also be understood that the first substrate 162, the second substrate 164, and / or the elastic material 167 of the first elastic band 106 and / or the second elastic band 108 can be bonded together and / or to other components (such as the chassis 102) using adhesives and / or mechanical bonds. It should be understood that adhesive bonding and mechanical bonding can be used alone or in combination with each other.
[0094] In some configurations, when the first substrate 162, the second substrate 164 and / or the elastic material 167 are combined to form the first elastic band 106 and / or the second elastic band 108, an adhesive can be applied to at least one of them. In some configurations, when the first substrate 162, the second substrate 164 and / or the elastic material 167 are combined to form the first elastic band 106 and / or the second elastic band 108, a mechanical bonding device can apply a mechanical bonding piece to at least one of them. Such mechanical bonding pieces can be applied using heat, pressure and / or ultrasonic devices. In some configurations, a mechanical bonding device can apply a bonding piece that bonds the first substrate 162, the second substrate 164 and / or the elastic material 167 together, and / or can be used to capture or fix the contraction elastic strands of discrete lengths in the first elastic band 106 and / or the second elastic band 108.
[0095] It should also be understood that the first substrate 162, the second substrate 164 and / or the elastic material 167 can be bonded together using various methods and equipment to produce various elastomeric laminates, such as U.S. Patent Publication Nos. 2018 / 0168878 A1, 2018 / 0168877 A1, 2018 / 0168880 A1, 2018 / 0170027 A1, 2018 / 0169964 A1, 2018 / 0168879 A1, 2018 / 0170026 A1, 2018 / 0168889 A1, 2018 / 0168874 A1, 2018 / 0168875 A1, 2018 / 0168890 A1, 2018 / 0168887 A1, 2018 / 0168892 A1 A1, 2018 / 0168876 A1, 2018 / 0168891 A1, 2019 / 0070042 A1, 2019 / 0070041 A1, 20210282797 A1 and 20210275362 A1 and combinations thereof, all of which are incorporated herein by reference.
[0096] It should be understood that the components of the first elastic band 106 and / or the second elastic band 108 can be assembled in various ways and in various combinations to produce various desired characteristics, which can vary along the lateral width and / or longitudinal length of the first elastic band 106 and / or the second elastic band 108. Such characteristics can include, for example, dtex value, bonding pattern, hole arrangement, elastic positioning, average dtex value, average pre-strain value, roughness frequency, roughness wavelength, height value and / or contact area. It should be understood that different characteristics can be imparted to various components (such as, for example, the first substrate 162, the second substrate 164 and the elastic material 167) before and / or during the assembly stage of the first elastic band 106 and / or the second elastic band 108.
[0097] It should be understood that the first elastic band 106 and / or the second elastic band 108 may include various configurations of band elastic material 167 arranged relative to each other and relative to the first substrate 162 and the second substrate 164. As discussed above, the elastic material 167 may include configurations of one or more elastic elements (such as strands, ribbons, films, or sheets) positioned in various arrangements. In some configurations, the elastic material 167 may include various elastic components, elastic features and arrangements, and methods for assembly, such as 2018 / 0168889 A1, 2018 / 0168874 A1, 2018 / 0168875 A1, 2018 / 0168890 A1, 2018 / 0168887A1, 2018 / 0168892 A1, 2018 / 0168876 A1, 2018 / 0168891 A1, 2019 / 0298586 A1, 2019 / 0070042 A1, 2018 / 0168878 A1, 2018 / 0168877 A1, 2018 / 0168880 A1, 2018 / 0168887A1 A1, 2018 / 0169964 A1, 2018 / 0168879 A1, 2018 / 0170026 A1, 2019 / 0070041 A1, 2021 / 0282797 A1 and 2021 / 0275362 A1, all of which are incorporated herein by reference. It should also be understood that the elastic material 167 herein can be configured to have the same or different colors in various different positions on the first elastic band 106 and / or the second elastic band 108.
[0098] In some configurations, the elastic material 167 can be constructed as elastic strands 168 arranged at constant intervals in the longitudinal direction. In other embodiments, the elastic strands 168 can be arranged at different intervals in the longitudinal direction. In some configurations, the decitex value of the elastic strands 168 can be constant or variable in the longitudinal direction. In some configurations, the elastic material 167 in a stretched state can be inserted and joined between the uncontracted substrate layers. When the elastic material 167 relaxes, the elastic material 167 returns to the unstretched state and contracts the substrate layer. The elastic material 167 can provide a desired contraction force change in the area of the annular elastic band. It should be understood that the base structure 102 and the elastic bands 106, 108 can be constructed in a manner different from that shown in the drawings. It should also be understood that the elastic material 167 material can be continuously or intermittently joined to the substrate along the interface between the elastic material 167 material and the substrate. In some configurations, the elastic strands 168 may be in the form of extruded elastic strands, which may also be bonded to the first substrate 162 and / or the second substrate 164 in a pre-corrugated configuration, such as disclosed, for example, in U.S. Patent No. 5,681,302, which is incorporated herein by reference.
[0099] As mentioned above, for example, Figure 2A and Figure 3As discussed, the elastic material 167 discussed herein can be in the form of elastic strands 168. In some configurations, the elastic strands 168 can be parallel to each other and / or to the lateral axis 126. It should be understood that the first elastic band 106 and / or the second elastic band 108 can be configured to include various amounts of elastic strands 168. In some configurations, the elastic strands 168 can be grouped in pairs. In some configurations, the first elastic band 106 and / or the second elastic band 108 can include about 10 to about 1500 elastic strands 168. It should also be understood that the elastic strands 168 herein can have various decitex values, strand spacing values, and pre-strain values, and such elastic strands 168 can be used with other elastic strands to produce the first elastic band 106 and the second elastic band 108 including elastic strands 168 with various combinations of decitex values, strand spacing values, and pre-strain values. For example, in some configurations, the average decitex of one or more elastic strands 168 may be greater than 500. In some configurations, the average decitex of one or more elastic strands 168 may be about 10 to about 1500, specifically reciting all 1 decitex increments within the above-mentioned range and all ranges formed therein or thereby. In some configurations, multiple elastic strands 168 may have an average strand spacing less than or equal to 4 mm. In some configurations, multiple elastic strands 168 may have an average strand spacing of about 0.25 mm to about 4 mm, specifically reciting all 0.01 mm increments within the above-mentioned range and all ranges formed therein or thereby. In some configurations, multiple elastic strands 168 may have an average strand spacing greater than 4 mm. In some configurations, the average prestrain of each of the multiple elastic strands may be about 50% to about 400%, specifically reciting all 1% increments within the above-mentioned range and all ranges formed therein or thereby. In some configurations, the elastic strands 168 include an average strand spacing of about 0.25 mm to about 4 mm and an average decitex of about 10 to about 500. In some configurations, the elastic strands 168 can have an average pre-strain of about 75% to about 300%.
[0100] In some configurations, the first plurality of elastic strands may have a first average prestrain of about 75% to about 300%, and the second plurality of elastic strands may have a second average prestrain greater than the first average prestrain. In some configurations, the first plurality of elastic strands have an average strand spacing of about 0.25 mm to about 4 mm and an average decitex of about 10 to about 500; and the second plurality of elastic strands may have an average strand spacing greater than about 4 mm and an average decitex greater than about 450.
[0101] In some configurations, such as Figure 2AAs shown, the elastic strands 168 may be referred to herein as outer waist elastic components 170 and inner waist elastic components 172. Elastic strands 168, such as the outer waist elastic components 170, may extend laterally continuously between the opposing first and second end regions 106a, 106b of the first elastic belt 106 and between the opposing first and second end regions 108a, 108b of the second elastic belt 108. Some elastic strands 168, such as the inner waist elastic components 172, may be configured to be discontinuous in certain areas, such as, for example, where the first and second elastic belts 106, 108 overlap portions of the chassis 102, such as the absorbent assembly 140.
[0102] like Figure 2A As shown, the first elastic belt 106 and / or the second elastic belt 108 may be configured with a low-stretch area 701 and a high-stretch area 703. The first elastic belt 106 and / or the second elastic belt 108 may include a first high-stretch area 703a and a second high-stretch area 703b separated laterally by the low-stretch area 701. Portions of the chassis 102 (such as the backsheet 136 and the absorbent assembly 140) may be connected to the first elastic belt 106 and / or the second elastic belt 108 in the low-stretch area 701 in the first waist region 116 and / or the second waist region 118. The high-stretch area 703 is elasticized by an elastic material 167 such as elastic strands 168, 172; and the low-stretch area 701 may include a cut line separating the elastic material 167 such as elastic strands 168, 172. In some configurations, the elastic material 167 may be cut in an unbonded area where the elastic material is not bonded to the first substrate 162 and the second substrate 164. Thus, the elastic material 167 retracts from the unbonded area and forms a low-stretch region 701. In some configurations, the elastic material 167 can be cut into a number of discrete pieces. Then, the low-stretch region 701 defines an area of the first elastic band 106 and / or the second elastic band 108 that is relatively less elastic than the high-stretch region 703. The discrete elastic material 167 that has been cut and elastically contracted does not add any significant amount of elasticity to the low-stretch region 701. Therefore, when a force is applied, the high-stretch region 703 will stretch more than the low-stretch region 701. As provided above, the term "elastic", "elastomer" or "elastomeric" refers to a material that exhibits elastic properties, and they include any material that can stretch or stretch to an elongated length exceeding 10% of its initial length when a force is applied to its relaxed initial length, and will substantially recover to about its initial length when the applied force is released. In some configurations, the first elastic belt 106 and / or the second elastic belt 108 can be configured with elastic, high-stretch regions 703 and can be configured with inelastic or “non-elastic” low-stretch regions 701 .
[0103] As discussed above, refer to Figure 1-Figure 3C The described diaper pants 100P may include one or more breakable paths in the first belt 106 and / or the second belt 108. For example, Figure 4A-4C An exemplary diaper pant 100P is shown with a first belt 106 that includes a frangible path 700. The frangible path 700 can be configured to allow the first elastic belt 106 to tear relatively easily along the frangible path 700, such as when removing the diaper pant 100P from a wearer. Figure 4B Shown from Figure 4A , showing the first belt 106 after it has been torn along the frangible path 700 through both the outer longitudinal outer laterally extending edge 107a and the inner laterally extending edge 107b of the first belt 106. Thus, Figure 4B The first elastic band 106 is shown separated by opposing tear lines 705. It should be understood that the first elastic band 106 can be Figure 4B The two breakable paths 700 are torn apart. For example, Figure 4C Shows Figure 4A Diaper pants of FIG. 700 are shown, showing the front belt that has been torn along two frangible paths 700. Figure 4C As shown, after the opposing first and second end regions 106a , 106b are separated from the central region 106c by tearing the elastic band 106 along the frangible path 700 , the central region 106c of the first elastic band 106 may remain bonded to the chassis 102 .
[0104] As described in more detail below, the frangible path 700 includes a plurality of lines of weakness 704 that are configured such that all of the elastic strands 168 in the first elastic belt 106 are severed at least once in the frangible path 700. Severing the elastic strands 168 in the frangible path 700 helps make it relatively easy to tear the first elastic belt 106 along the frangible path 700. For example, when the elastic strands 168 are severed, the first substrate 162 and the second substrate 164 of the first elastic belt 106 need only be torn, without also tearing the uncut elastic strands 168. It should be understood that the diaper pant 100P may include various numbers of frangible paths 700 that may be: positioned in various locations; define various shapes; and extend various lengths. For example, the first elastic band 106 may include a first band length defined by the longitudinal distance between the proximal edge 107b and the distal edge 107a, and the frangible path 700 may extend a total length from the outermost edge of the line of weakness 704 closest to the proximal edge 107b of the first band 106 to the outermost edge of the line of weakness 704 closest to the distal edge 107a of the first band 106. In some configurations, the frangible path 700 may extend a total length greater than, equal to, or less than the first band length. In some configurations, the line of weakness 704 may extend a certain length from the first end to the second end, and the sum of all lengths of the lines of weakness 704 in the frangible path 700 may be greater than the total frangible path length.
[0105] In some configurations, the diaper pant 100P can be configured such that one or both of the first elastic belt 106 and the second elastic belt 108 include one or more breakable paths 700. The breakable paths 700 can be positioned in various locations on the first elastic belt 106 and the second elastic belt 108. For example, Figure 4A-4C As shown, the frangible path 700 can extend to overlap the chassis 102. In some configurations, the frangible path 700 can extend in a straight line and / or can be curved and / or have a bend. In some configurations, the frangible path 700 can extend longitudinally the entire length of the first strap 106 and / or the second strap 108 or less than the entire length. In some configurations, the frangible path 700 can be partially or completely positioned laterally between the first side seam 178 and the second side seam 180 and the chassis 102.
[0106] In some configurations, the frangible pathway 700 can be constructed and / or positioned to allow access to other features (such as disposal features) and / or be used with other features. Figure 4A-4CThe illustrated diaper pant 100P includes a fastener component 707 positioned on the wearer-facing surface 115b of the first elastic band 106. In some configurations, the fastener component 707 may be positioned between the first elastic band 106 and the chassis 102. The fastener component 707 may be configured to be refastenably connected to other portions of the diaper pant 100P, such as, for example, the first elastic band 106, the second elastic band 108, or the garment-facing surface of the chassis 102. Thus, once the first elastic band 106 is torn along the breakable path 700, the diaper pant 100P may be removed from the wearer and rolled or folded up for disposal, and the fastener component 707 may be connected to another portion of the diaper pant 100P to help maintain the diaper pant 100P in a disposal configuration. For example, Figure 4C The diaper pant 100P is shown after the first elastic band 106 has been torn along two frangible paths. Figure 5A Shows Figure 4C A diaper pant 100P in which the chassis 102 is rolled up on itself in the longitudinal direction. And Figure 5B Shows Figure 5A The diaper pants 100P of the present invention is provided in which the fastener components 707 are refastenably connected to the backsheet 136 of the chassis 102 to maintain the diaper pants 100P in a disposal configuration. In some configurations, when tearing the elastic band along the frangible path 700, the tearing process can be initiated by tearing from the outer edge 107a or the inner edge 107b of the elastic band 106. As described in more detail below, in some configurations, the first elastic band 106 can also include an opening, such as a slit positioned adjacent to or near the fastener components 707 and the weakened area 700 to help facilitate the initiation of longitudinal tearing of the frangible path 700 in the area of the elastic band 106 located between the outer edge 107a and the inner edge 107b.
[0107] It should also be understood that the fastener component 707 can be constructed in various ways, such as hooks, loops and / or adhesives. For example, the fastener component 707 may include a hook element or adhesive adapted to be refastenably connected to another surface of the diaper pants 100P. In some configurations, the fastener component 707 may include a loop element adapted to be refastenably connected to the hook surface on the diaper pants 100P. The fastener component 707 can be an independent element connected to the elastic band 106 in various ways (such as mechanical bonding, adhesive bonding or both). In some configurations, the fastener component 707 can be formed integrally by the material of the elastic bands 106, 108. In some configurations, the fastener component 707 can be printed and / or include materials of various different colors so that the fastener component 707 can be visible from the outside of the diaper pants 100P.
[0108] As previously mentioned, fastener component 707 may include hook material, which can be refastened on the outer surface of diaper pants 100P and engage substrate, such as nonwoven. For example, fastener component 707 may include a substrate comprising hook, wherein the substrate is bonded to elastic band 106,108, such as the second substrate 164 that can be a nonwoven form. It should be understood that substrate can be bonded to elastic band 106,108 in various ways, such as for example utilizing mechanical bonding, thermal bonding, ultrasonic bonding and / or adhesive bonding or their combination. In some configurations, hook can be formed integrally by second substrate 164, and this second substrate can be the form of nonwoven. Fastener component 707 may include a material or a combination of two or more materials arranged in at least partially overlapping configuration. In some configurations, fastener component 707 may include other fastener types known in the art.
[0109] It should be understood that the fastener component 707 may include any of a variety of shapes, including rectangular or other polygonal, circular, elliptical, shapes with external convex or concave surfaces or combinations thereof, or one or more lines or geometric shapes forming an array. It should be understood that the fastener component 707 may include various sizes. For example, in some configurations, the fastener component 707 may have a lateral width between about 5 mm and about 100 mm, specifically listing all 0.1 mm increments within the above range and all ranges formed therefrom or thereby. In some configurations, the fastener component 707 may have a longitudinal length between about 10 mm and about 100 mm, specifically listing all 0.1 mm increments within the above range and all ranges formed therefrom or thereby. The fastener component 707 may be aligned parallel to the lateral centerlines 126a, 126b of the elastic bands 106, 108, or may be oriented at an angle between 0 and 90 degrees relative to the longitudinal centerlines 126a, 126 of the elastic bands 106, 108. The fastener component 707 may include an array of two or more spaced apart fastening elements. The fastener component 707 may have a color that is visible through any layer of the elastic band 106, 108 on which the fastener component 707 is positioned. The elastic band 106, 108 and / or the base structure 102 may include printing or other markings that highlight the location, function and / or use of the fastener component 707 to the caregiver. The bond or bond pattern that attaches the fastener component 707 to the elastic band 106, 108 may be visually or tactilely different from the surrounding band material to provide a signal or mechanical gripping advantage to the caregiver.
[0110] It should also be understood that the frangible path 700 may include weak lines 704 that are: constructed in various ways; positioned in various positions and orientations relative to each other; defined by various shapes; and extend various lengths. For example, in some configurations, the weak line 704 includes discrete cut lines that penetrate some or all layers of the elastic band 106. In some configurations, the weak line 704 includes discrete bonding pieces, wherein the materials of the first substrate and the second substrate are melted together. In some configurations, the weak line 704 may be linear, curvilinear, or have a regular or irregular geometry, and may include one or more or a combination of perforations, bonding, orifices, or mechanical thinning areas of a material (such as a nonwoven). It should also be understood that the weak line 704 may be formed to have different lengths and spacings to achieve different separation forces.
[0111] As discussed above, an absorbent article 100 such as a diaper pant 100P can be configured with a breakable path 700 including a line of weakness 704 arranged in various ways to help improve a caregiver's ability to remove a soiled diaper pant 100P from a wearer without having to remove the soiled diaper pant from the wearer by sliding the soiled diaper pant down the wearer's legs. As discussed above, the breakable path 700 can be configured to allow the first elastic band 106 and / or the second elastic band 108 to tear relatively easily along the breakable path 700, such as when removing the diaper pant 100P from the wearer. In addition, the breakable path 700 can also be configured to allow access to a fastener component 707, which can be used to help keep the soiled product in a disposal configuration. A discussion of exemplary implementations of the frangible pathway 700 on the diaper pant 100P is provided below in the context of the above description of various details of the absorbent article 100, fastener component 707, frangible pathway 700, and weakness line 704. It should be understood that the discussion herein of the frangible pathway 700 in the first elastic belt 106 may also apply to the frangible pathway 700 in the second elastic belt 108.
[0112] It should be understood that the breakable path 700 can be positioned in a variety of locations and / or orientations relative to other components of the absorbent article 100 and / or can be configured to function in a variety of ways to help facilitate removal of the diaper pants from the wearer. For example, Fig. 6A and Figure 6B The illustrated diaper pant 100P may include one or more breakable pathways 700 extending between a distal end 808 on the outer edge 107a of the first belt 106 and a distal end 810 on the inner edge 107b of the first belt 106. Fig. 6A and Figure 6BAs shown, the diaper pant 100P includes a first breakable path 700a and a second breakable path 700b located in the first belt 106. The first breakable path 700a may extend between a first distal end 808a on the outer edge 107a of the first belt 106 and a first proximal end 810a on the inner edge 107b of the first belt 106. And the second breakable path 700b may extend between a second distal end 808b on the outer edge 107a of the first belt 106 and a second proximal end 810b on the inner edge 107b of the first belt 106. It should be understood that the first breakable path 700a and the second breakable path 700b may include a line of weakness 704 as described above.
[0113] It should be understood that the first distal end 808a and the second distal end 808b can be located in various lateral positions on the outer edge 107a of the first band 106. For example, in some configurations, the first distal end 808a and / or the second distal end 808b can be positioned in the central region 106c of the first band 106. In some configurations, the first distal end 808a and / or the second distal end 808b can be positioned laterally between the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102. In some configurations, the first distal end 808a and / or the second distal end 808b can be positioned in the first end region 106a and / or the second end region 106b of the first band 106. In some configurations, the first distal end 808a and / or the second distal end 808b can be positioned laterally outboard of the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102. In some configurations, the first distal end 808a and / or the second distal end 808b can be laterally positioned between the first longitudinal edge 128 of the chassis 102 and the first side seam 178, and / or can be laterally positioned between the second longitudinal edge 130 of the chassis 102 and the second side seam 180. In some configurations, the first distal end 808a can be laterally aligned with the first longitudinal edge 128 of the chassis 102 or the first longitudinal side 111a of the first belt 106. In some configurations, the first distal end 808a can be laterally positioned between the first longitudinal edge 128 of the chassis 102 and the first longitudinal side 111a of the first belt 106. In some configurations, the second distal end 808b can be laterally aligned with the second longitudinal edge 130 of the chassis 102 or the second longitudinal side 111b of the first belt 106. In some configurations, the second distal end 808b can be positioned laterally between the second longitudinal edge 130 of the chassis 102 and the second longitudinal side 111b of the first band 106 .
[0114] It should also be understood that the first proximal end 810a and the second proximal end 810b can be located in various lateral positions on the inner edge 107b of the first band 106. For example, in some configurations, the first proximal end 810a and / or the second proximal end 810b can be positioned in the central region 106c of the first band 106. In some configurations, the first proximal end 810a and / or the second distal end 810b can be positioned laterally between the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102. In some configurations, the first proximal end 810a and / or the second proximal end 810b can be positioned in the first end region 106a and / or the second end region 106b of the first band 106. In some configurations, the first proximal end 810a and / or the second proximal end 810b can be positioned laterally outboard of the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102. In some configurations, the first proximal end 810a and / or the second proximal end 810b can be laterally positioned between the first longitudinal edge 128 of the chassis 102 and the first side seam 178, and / or can be laterally positioned between the second longitudinal edge 130 of the chassis 102 and the second side seam 180. In some configurations, the first proximal end 810a can be laterally aligned with the first longitudinal edge 128 of the chassis 102 or the first longitudinal side 111a of the first belt 106. In some configurations, the first proximal end 810a can be laterally positioned between the first longitudinal edge 128 of the chassis 102 and the first longitudinal side 111a of the first belt 106. In some configurations, the second proximal end 810b can be laterally aligned with the second longitudinal edge 130 of the chassis 102 or the second longitudinal side 111b of the first belt 106. In some configurations, the second proximal end 810b can be positioned laterally between the second longitudinal edge 130 of the chassis 102 and the second longitudinal side 111b of the first band 106 .
[0115] It should be understood that the first distal end 808a and the second distal end 808b can be located in various longitudinal positions between the outer edge 107a and the inner edge 107b of the first band 106. And the first proximal end 810a and the second proximal end 810b can be located in various longitudinal positions between the outer edge 107a and the inner edge 107b of the first band 106. For example, in some configurations, such as Fig.6B1 As shown, the first distal end 808a and / or the first proximal end 810a can be located on the first side seam 178 at a position longitudinally inward of the outer edge 107a of the first belt 106 and longitudinally outward of the inner edge 107b. Fig.6B1As shown, the second distal end 808b and / or the second proximal end 810b may be located on the second side seam 180 at a position longitudinally inward of the outer edge 107a and longitudinally outward of the inner edge 107b of the first tape 106. Therefore, completing the tearing process of the first tape 106 may also require tearing a portion of the first side seam 178 and / or the second side seam 180.
[0116] Continue to refer to Figure 6B , the first tape 106 may also include a gripping area 801 that provides a location where a user can grasp a portion of the first tape 106 and begin the process of tearing the first tape along the frangible path 700. The gripping area 801 may include an accessible opening 802 in the first tape 106, and may also include a fastener component 707 positioned adjacent to the accessible opening 802. The accessible opening 802 may include a slit and / or opening in the first tape 106, and may penetrate some or all layers of the first tape 106. It should be understood that such a slit or opening may be curved and / or straight. The accessible opening 802 may also be considered part of the frangible path 700.
[0117] like Figure 6BAs shown, the diaper pant 100P can include a first gripping area 801a having a first accessible opening 802a and a second gripping area 801b having a second accessible opening 802b in the first belt 106. The first accessible opening 802a and the second accessible opening 802b can be positioned between the outer edge 107a and the inner edge 107b of the first belt 106. The first accessible opening 802a and the second accessible opening 802b can also be positioned in the central region 106c of the first belt 106 and can be positioned between the first longitudinal edge 128, the second longitudinal edge 130, and the first lateral edge 144 of the chassis 102. In addition, the first fastener component 707a can be positioned adjacent to the first accessible opening 802a, and the second fastener component 707a can be positioned adjacent to the second accessible opening 802a. The first frangible path 700a includes a first tear region 813a extending from the first accessible opening 802a to the first distal end 808a and a second tear region 813b extending from the first accessible opening 802a to the first proximal end 810a. The second frangible path 700b includes a first tear region 813a extending from the second accessible opening 802b to the second distal end 808b and a second tear region 813b extending from the second accessible opening 802b to the second proximal end 810b. As described in more detail below, the accessible opening 802 can help allow a caregiver or wearer to approach and / or grasp the fastener component 707 in the gripping area 801 with a finger or thumb. The caregiver or user can then pull the gripping area 801 to begin tearing the first belt 106 on the frangible path 700. In some configurations, the tear line can simultaneously run from the central region 106c of the first belt 106 toward the distal end 808 and the proximal end 810 laterally outward along the first tear region 813a and the second tear region 813b. It should also be understood that some diaper pants 100P herein can be configured to include a frangible path 700 extending through or around the fastener component 707 without an accessible opening. The user can then pinch and / or pull the belt with the frangible path 700 located at or adjacent to the fastener component 707 to initiate the tearing process along the frangible path 700.
[0118] like Figure 6B As shown, the frangible path 700 can be configured to extend laterally inward from the distal end 808 and / or the proximal end 810. Subsequently, portions of the frangible path 700 can extend to define an angle of less than 90 degrees relative to the outer edge 107a and / or the inner edge 107b of the first band 106. Thus, the frangible path can define an angle greater than the angle described above with reference to FIG. 2C to FIG. 2E The total length of the longitudinal length LT1 of the first tape 106 and / or the longitudinal length LT2 of the second tape 108 in question.
[0119] It should be understood that the gripping area 801 and the accessible opening 802 can be located in various locations in the first end region 106a, the second end region 106b, and / or the central region 106c of the first strap 106. The gripping area 801 and the accessible opening 802 can be positioned between the first longitudinal side edge 111a, the second longitudinal side edge 111b, the outer edge 107a, and the inner edge 107b of the first strap 106. For example, the first accessible opening 802a and / or the second accessible opening 802b can be positioned completely laterally between the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102. In some configurations, the first accessible opening 802a can be positioned laterally between the first longitudinal side edge 128 of the chassis 102 and the first longitudinal side edge 111a of the first strap 106 and / or the first side seam 178. In some configurations, the second accessible opening 802b can be positioned laterally between the second longitudinal side edge 130 of the chassis 102 and the second longitudinal side edge 111b of the first band 106 and / or the second side seam 180. In some configurations, the first accessible opening 802a and / or the second accessible opening 802b can be positioned longitudinally between the first lateral edge 144 of the chassis 102 and the inner edge 107b of the first band 106, and / or can be positioned longitudinally between the first lateral edge 144 of the chassis 102 and the outer edge 107a of the first band 106. In some configurations, the first accessible opening 802a can extend across the first longitudinal edge 128 and / or the first lateral edge 144 of the chassis 102, and / or the second accessible opening 802b can extend across the second longitudinal edge 130 and / or the first lateral edge 144 of the chassis 102.
[0120] It should also be understood that the accessible opening 802 can be located in various positions relative to the fastener component 707. For example, in some configurations, the accessible opening 802 can be positioned longitudinally between the fastener component 707 and the outer edge 107a of the first band 106. In some configurations, the accessible opening 802 can be positioned longitudinally between the fastener component 707 and the inner edge 107b of the first band 106. In some configurations, the accessible opening 802 can be positioned laterally inboard of the fastener component 707. It should also be understood that more than one accessible opening 802 can be positioned adjacent to the fastener component 707. As described in more detail below, the accessible opening 802 is also configured to extend partially or completely across the fastener component 707 and can divide the fastener component 707 into two or more portions.
[0121] As described above, the accessible opening 802 may include a slit and / or opening located in the first band 106, and may be curved and / or straight. It should be understood that the accessible opening 802 may also be oriented in various ways. For example, the accessible opening 802 may be oriented substantially vertically relative to the outer edge 107a and / or the inner edge 107b of the first band 106. In some configurations, the accessible opening 802 may be oriented substantially parallel to the outer edge 107a and / or the inner edge 107b of the first band 106. In some configurations, the accessible opening 802 may include a slit extending in a line in a lateral direction to define an angle from about 0 degrees to about 45 degrees relative to the outer edge 107a and / or the inner edge 107b of the first band 106, specifically listing all 1 degree increments within the above-mentioned range and all ranges formed therein or thereby. In some configurations, the accessible opening 802 can define a length dimension within the range of about 5 mm to about 50 mm, specifically reciting all 0.1 mm increments within the above-referenced ranges and all ranges therein or formed therefrom.
[0122] As discussed above, the diaper pant 100P may include one or more fastener components 707 that are adapted to be refastenably connected to at least one other component of the diaper pant 100P in a disposal configuration. It should be understood that the fastener components 707 may be configured in a variety of shapes and sizes and may be located in a variety of positions relative to other components of the diaper pant 100P. Fig. 7A As shown, the fastener component 707 may include a lateral centerline 126d oriented substantially parallel to the lateral centerline 126a of the first elastic band 106 and / or the lateral centerline 126b of the second elastic band 108 and / or the lateral centerline 126c of the chassis 102. The fastener component 707 may include a longitudinal centerline 124d oriented substantially parallel to the longitudinal centerline 124a of the first elastic band 106 and / or the longitudinal centerline 124b of the second elastic band 108 and / or the longitudinal centerline 124c of the chassis 102.
[0123] like Figure 7AA1 As shown, in some configurations, the fastener component 707 can be positioned on and connected to the wearer-facing surface 115b of the first elastic belt 106 and / or the second elastic belt 108 in the area where the first elastic belt 106 and / or the second elastic belt 108 overlap the chassis 102. In some configurations, the fastener component 707 can be sandwiched between the second substrate 164 of the first elastic belt 106 or the second elastic belt 108 and the backsheet 136 of the chassis 102. In some configurations, such as Figure 7AA1As shown, the fastener component 707 includes a hook 715 protruding from a base 717, and the hook 715 extends from the first belt 106 toward the backsheet 136. The fastener component 707 can be configured as a separate discrete element, which can be connected to the wearer-facing surface 115b of the first belt 106 in various ways. For example, Figure 7AA1 As shown, adhesive 716 can connect the base 717 of the fastener component 707 to the wearer-facing surface 115b of the first band 106. It should be understood that in addition to or in place of the adhesive, the fastener component 707 can be connected to the first band 106 by mechanical bonding. It should be understood that the base 717 can be constructed in various ways. For example, the base 717 may include a thermoplastic film. In some configurations, the base 717 may include a laminate having various layers bonded together, such as, for example, disclosed in U.S. Patent Publication 2021 / 0045931 A1. For example, the base 717 may include a thermoplastic film layer bonded to a nonwoven layer. It should be understood that such layers can be bonded together in various ways, such as using an adhesive, mechanical bonding, and / or extrusion bonding. In some configurations, the fastener component 707 may be integrally formed from the material of the first band 106, such as, for example Figure 7AA2 As shown, or may be integrally formed from the material and attached to the first strap.
[0124] To help prevent the fastener components 707 from contacting the wearer's skin when the diaper pant 100P is worn, the fastener components 707 may be positioned on and connected to the wearer-facing surface 115b of the first elastic belt 106 and / or the wearer-facing surface 117b of the second elastic belt 108 in the area where the first elastic belt 106 and / or the second elastic belt 108 overlap the chassis 102. For example, the fastener components 707 may be sandwiched between the wearer-facing surface 115b of the first belt 106 and the chassis 102. In some configurations, the fastener components 707 may be sandwiched between the second substrate 164 of the first elastic belt 106 or the second elastic belt 108 and the backsheet 136 of the chassis 102. In some configurations, the fastener components 707 may be positioned laterally between the first longitudinal side edge 128 and the second longitudinal side edge 130 of the chassis 102. The fastener component 707 may also be positioned longitudinally between the first lateral edge 144 of the chassis 102 and the inner edge 107b of the first belt 106. Fig. 7A As shown, fastener component 707 can be positioned adjacent to frangible pathway 700. Accessible opening 802, which can be considered a portion of frangible pathway 700, can be positioned adjacent to fastener component 707. In this way, frangible pathway 700 can partially surround fastener component 707. In some configurations, such as Figure 7BAs shown, breakable pathway 700 may extend across fastener component 707, thereby effectively dividing fastener component 707 into a first fastener portion 707' and a second fastener portion 707".
[0125] exist Figure 7C , Fig.7D and Fig. 7E In another configuration shown, both the frangible pathway 700 and the accessible opening 802 may extend across the fastener component, thereby effectively dividing the fastener component 707 into a first fastener portion 707' and a second fastener portion 707". Figure 7C The accessible opening 802 shown may include a slit oriented generally in the longitudinal direction. In addition, the accessible opening 802 extends across the fastener component 707 and may be completely positioned within the periphery of the fastener component. It should be understood that such slits may be straight and / or curved. In some configurations, the accessible opening 802 extending longitudinally may be limited to a length dimension in the range of about 10 mm to about 30 mm, specifically listing all 0.1 mm increments in the above-mentioned range and all ranges formed therefrom or therefrom. In addition, in some configurations, the accessible opening 802 extending longitudinally may also be bent to extend laterally in the range of about 2 mm to about 20 mm, specifically listing all 0.1 mm increments in the above-mentioned range and all ranges formed therefrom or therefrom.
[0126] exist Figure 7F In another configuration shown, the diaper pants 100P may include a fastener component 707 joined to the wearer-facing surface 115b of the first belt 106 in a position overlapping the longitudinal centerline 124c of the chassis 102. The longitudinal centerline 124d of the fastener component 707 may coincide with or be close to the longitudinal centerline 124c of the chassis 102. The frangible path 700 may separate the fastener component 707 into a first fastener component 707a and a second fastener component 707b of substantially similar size and geometry. The accessible opening 802 may be disposed at or near the longitudinal inner lateral edge of the fastener component 707. On the longitudinal outer side of the lateral edge of the fastener component 707, the frangible path 700 may extend longitudinally and laterally to the waist edge 121 and the inner edge 107b of the first belt 106. A caregiver or wearer may access and grasp fastener component 707 through accessible opening 802 and subsequently separate frangible pathway 700 into first fastener component 707a and second fastener component 707b.
[0127] As discussed above, the first elastic band 106 and / or the second elastic band 108 can be relatively easily torn along the frangible path 700, such as when removing the diaper pant 100P from a wearer. 6A to 6FAs described above, the breakable path 700 can be configured to allow a caregiver or wearer to start tearing and / or completely tearing the first belt 106 and / or the second belt 108 with one hand when removing the diaper pants 100P from the wearer. In addition, the first belt 106 can be separated along the first breakable path 700a and the second breakable path 700b to define a first belt area 831, a second belt area 832, and a third belt area 833 positioned laterally between the first belt area 831 and the second belt area 832.
[0128] Now refer to Fig. 6A and Figure 6B , when removing the diaper pant 100P from the wearer, the user can grasp the first belt 106 in the gripping area 801 by inserting one or more fingers and / or thumbs through the accessible opening 802 to grasp the first belt 106 and a portion of the fastener component 707. For example, referring to Figure 6B and Figure 6C , the caregiver can insert a finger or thumb through the first accessible opening 802a and grasp the first strap 106 and the first fastener component 707a with the first hand. The caregiver's opposite second hand can be used to help stabilize the wearer. For example, the caregiver's opposite second hand can apply a holding or stabilizing force to the wearer at the center area 106c of the first strap 106. The user's first hand can then apply a pulling force F on the first gripping area 801a of the first strap 106 away from the wearer to initiate tearing of the first strap 106 along the first breakable path 700a, such as Figure 6C shown.
[0129] Continue to refer to Figure 6C , a force F, generally indicated by an arrow, is applied to the first gripping region 801a in a direction generally outward toward the first end region 106a of the first band 106 and / or away from the first band 106 and the wearer. When the force F is applied, the first tear line 705a and the second tear line 705b can simultaneously propagate along the first tear area 813a and the second tear area 813b, respectively. The first tear line 705a can propagate from the first accessible opening 802a along the first tear area 813a of the first frangible pathway 700a in the longitudinal and lateral directions around the first fastener component 707a, and then propagate in a direction D1, which is generally laterally and longitudinally outward from the central region 106c of the first band 106 and toward the first distal end 808a in the first end region 106a of the first band 106. At the same time, the second tear line 705b can propagate from the first accessible opening 802a along the second tear region 813b of the first frangible pathway 700a in a direction D2 that is generally laterally outward and longitudinally inward from the central region 106c of the first tape 106 and toward the first proximal end 810a in the first end region 106a of the first tape 106. Figure 6C The view shown, Fig. 7EIt shows that when the first breakable path 700a is torn Figure 7C Front plan view of the diaper pants. Fig. 7E As shown, when the frangible path is torn, the first fastener portion 707' is separated from the second fastener portion 707".
[0130] like Fig.6D As shown, the first tape 106 can be separated along the first frangible path 700a to define the first tape region 831. For example, once the first tear line 705a propagates through the first distal end 808a and the second tear line 705b propagates through the first proximal end 810a, the first tape region 831 can be formed. Fig.6D As shown, the first edge 831a of the first belt region 831 is formed by tearing the first frangible path 700a. In addition, the first edge 833a of the third belt region 833 discussed in more detail below is also formed by tearing the first frangible path 700a. The first belt region 831 can extend from the first edge 831a of the first tear line 705a and the second tear line 705b to the first side seam 178 or the first longitudinal side 111a of the first belt 106. In addition, the first belt region 831 can include a first fastener component 707a.
[0131] Where the first tape region 831 is defined by tearing the first tape 106 along the first frangible path 700a, the user may define the second tape region 832 by tearing the first tape 106 along the second frangible path 700b. Fig.6D and Fig. 6E , the caregiver can insert a finger or thumb through the second accessible opening 802b and grasp the first strap 106 and the second fastener component 707b with the first hand. The caregiver's opposite second hand can be used to help stabilize the wearer. For example, the caregiver's opposite second hand can apply a holding or stabilizing force to the wearer at the center area 106c of the first strap 106. The user's first hand can then apply a pulling force F outwardly away from the wearer on the second gripping area 801b of the first strap 106 to initiate tearing of the first strap 106 along the second breakable path 700b, such as Fig. 6E shown.
[0132] Continue to refer to Fig. 6E, a force F, generally indicated by an arrow, is applied to the second gripping region 801b in a direction generally outward toward the second end region 106b of the first tape 106 and / or away from the first tape 106. When the force F is applied, the first tear line 705a and the second tear line 705b can simultaneously propagate along the first tear region 813a and the second tear region 813b, respectively. The first tear line 705a can propagate from the second accessible opening 802b along the first tear region 813a of the second frangible pathway 700b longitudinally and laterally around the second fastener component 707b and then in a direction D1 that is generally laterally and longitudinally outward from the central region 106c of the first tape 106 and toward the second distal end 808b in the second end region 106b of the first tape 106. At the same time, the second tear line 705b can extend from the second accessible opening 802b along the second tear area 813b of the second breakable pathway 700b in a direction D2 that is generally laterally outward and longitudinally inward from the central region 106c of the first band 106 and toward the second proximal end 810b in the second end region 106b of the first band 106.
[0133] like Fig. 6F As shown, the first tape 106 can be separated along the second frangible path 700b to define a second tape region 832 and a third tape region 833. For example, once the first tear line 705a propagates through the second distal end 808b and the second tear line 705b propagates through the second proximal end 810b, the second tape region 832 can be formed. Fig. 6F As shown, the second edge 832a of the second tape region 832 is formed by tearing the second frangible path 700b. In addition, the second edge 833b of the third tape region 833 is also formed by tearing the second frangible path 700b. The second tape region 832 may extend from the first edge 832a of the first tear line 705a and the second tear line 705b to the second longitudinal side edge 111b of the first tape 106. In addition, the second tape region 832 may include a second fastener component 707b. The third tape region 833 may extend laterally between the first edge 833a and the second edge 833b and may remain connected to the chassis 102. When FIG. 7C to FIG. 7E When the tearing operation is completed in the configuration shown, the first tape region 831 and the second tape region 832 will include the first fastener portion 707', and the third tape region 833 will include the second fastener portion 707" that is separated from the corresponding first fastener portion 707' during the tearing frangible path 700.
[0134] Although the above reference 6A to 6FThe tearing process is described as tearing the first tape 106 along the first frangible path 700a before tearing the first tape along the second frangible path 700b, but it should be understood that tearing the first tape 106 along the frangible path 700 can occur in a variety of different orders and in different ways. For example, before tearing the first tape 106 along the first frangible path 700a to define the first tape region 831, the first tape 106 can be torn along the second frangible path 700b to define the second tape region 832. For another example, the first tape 106 can be torn along the first frangible path 700a and the second frangible path 700b simultaneously to define the first tape region 831, the second tape region 832, and the third tape region 833.
[0135] Once the first tape 106 is torn along the frangible path 700 to define the first tape region 831, the second tape region 832, and the third tape region 833, the diaper pant 100P can be removed from the wearer in a manner similar to conventional taped diapers. After removal from the wearer, the diaper pant 100P can be placed in a disposal configuration by rolling and / or folding the chassis 102 onto itself in the longitudinal direction, such as described above with reference to Figure 5A and Figure 5B The first belt region 831 and the second belt region 832 can be used to further wrap the diaper pant 100P onto itself. And the fastener components 707 on the first belt region 831 and the second belt region 832 can be connected to another portion of the diaper pant 100P to help maintain the diaper pant 100P in the disposal configuration.
[0136] It should be understood that various types of adhesive arrangements can be used to connect the chassis 102 to the first and second tapes 106, 108. As discussed below, such adhesive arrangements can be configured to help ensure that the chassis 102 remains connected to the first and second tapes 106, 108 during use while mitigating obstacles to the user's ability to initiate and complete tearing of the first and / or second tapes 106, 108 along the frangible path 700 during removal of the diaper pant 100P from the wearer.
[0137] For example Fig. 8AAs shown, a portion of the chassis 102 overlaps the wearer-facing inner surface 115b of the first belt 106 to define a chassis overlap zone 850. Thus, the chassis overlap zone 850 may extend laterally between the first longitudinal edge 128 and the second longitudinal edge 130 of the chassis 102, and longitudinally between the first lateral edge 144 of the chassis 102 and the inner edge 107b of the first belt 106. The chassis overlap zone 850 may include an adhesion zone 852 in which an adhesive 854 is positioned between the backsheet 136 of the chassis 102 and the wearer-facing inner surface 115b of the first belt 106. Thus, the adhesive 854 in the adhesion zone 852 may permanently bond the chassis 102 to the first belt 106. "Permanently bonded" refers to two or more elements or portions of elements being attached together in a manner in which the elements are not intended to be separated during normal use. It should be understood that the permanent bonding in the adhesion zone 852 can be formed by a variety of methods, such as, for example, applying a molten adhesive or polymer between substrates; mechanical bonding and / or thermal bonding; ultrasonic welding; mechanical entanglement using needle punching or water jets; stitching; and any other methods commonly used in the art for connecting substrates or clothes. The separation of such permanent bonding not only causes the degradation of attachment, but also causes the degradation of at least a portion of the element. It should be understood that adhesive 854 can be applied in the adhesion zone 852 in various ways. For example, the adhesion zone 852 may include a laterally extending adhesive strip 854 separated from each other longitudinally. In some configurations, the adhesion zone 852 may include a continuous adhesive layer 854. In some configurations, the adhesion zone 852 may include a longitudinally extending adhesive strip separated from each other laterally.
[0138] Continue to refer to Fig. 8A , the adhesion zone 852 may include a first adhesion area 856, a second adhesion area 858, and a third adhesion area 860. The first adhesion area may be positioned adjacent to the inner edge 107b of the first band 106, and the second adhesion area may be positioned adjacent to the first lateral edge 144 of the chassis 102. The third adhesion area 860 may be positioned longitudinally between the first adhesion area 856 and the second adhesion area 858. In some configurations, the first adhesion area 856 may be co-edged with the inner edge 107b of the first band 106 or spaced longitudinally outwardly therefrom. In some configurations, the second adhesion area 858 may be co-edged with the first lateral edge 144 of the chassis 102 or spaced longitudinally inwardly therefrom. In some configurations, the first adhesion area 856 and / or the second adhesion area 858 may be co-edged with the first longitudinal edge 128 and / or the second longitudinal edge 130 of the chassis 102 or spaced laterally inwardly therefrom.
[0139] It should be understood that the first adhesion area 856, the second adhesion area 858 and the third adhesion area 860 may include various relative longitudinal lengths and longitudinal widths. For example, the first adhesion area 856 may include a first lateral width LW1 and a first longitudinal length LL1, the second adhesion area may include a second lateral width LW2 and a second longitudinal length LL2, and the third adhesion area may include a third lateral width LW3 and a third longitudinal length LL3. In some configurations, the first lateral width LW1 and / or the second lateral width LW2 may be greater than the third lateral width LW3. In some configurations, the first lateral width LW1 may be equal to or different from the second lateral width LW2. In some configurations, the first longitudinal length LL1, the second longitudinal length LL2 and the third longitudinal length LL3 may be equal to or different from each other. In some configurations, the third longitudinal length LL3 may be greater than the first longitudinal length LL1 and the second longitudinal length LL2, and the first longitudinal length LL1 may be equal to or greater than the second longitudinal length LL2.
[0140] like Fig. 8A As shown, the first frangible pathway 700a and the second frangible pathway 700b extend laterally outward from the third adhesion area 860 in opposite directions across the overlap region 850. Thus, the first frangible pathway 700a and the second frangible pathway 700b may not extend across the third adhesion area 860. In addition, the first fastener component 707a; the first accessible opening 802a; and a portion of the first frangible pathway 700a may be positioned laterally between the third adhesion area 860 and the first longitudinal side 128 of the chassis 102, and may be positioned longitudinally between the first adhesion area 856 and the second adhesion area 858. The second fastener component 707b; the second accessible opening 802b; and a portion of the second frangible pathway 700b may be positioned laterally between the third adhesion area 860 and the second longitudinal side 130 of the chassis 102, and may be positioned longitudinally between the first adhesion area 856 and the second adhesion area 858. In some configurations, the first frangible pathway 700a and / or the second frangible pathway 700b may or may not extend across the first adhesion region 856 and / or the second adhesion region 858. It should be understood that the adhesion region 852 and the frangible pathway 700 may be separated by various distances in the longitudinal and lateral directions. For example, in some configurations, the adhesion region 852 and the frangible pathway 700 may be separated by about 1 mm to about 50 mm in the longitudinal and / or lateral directions, specifically reciting all 0.1 mm increments within the above-mentioned ranges and all ranges formed therein or thereby. In some configurations, the adhesion region 852 and the frangible pathway 700 may be separated by a distance of about 5 mm in the longitudinal direction and / or a distance of about 5 mm in the lateral direction and / or a distance of about 2.5 mm in the longitudinal and lateral directions.
[0141] Continue to refer to Fig. 8A, the adhesion area 852 can be configured to define a first pocket area 862 and a second pocket area 864 in the chassis overlap area 850. The chassis 102 may not be permanently bonded to the first tape 106 in the first pocket area 862 and the second pocket area 864. In some configurations, the adhesive between the chassis 102 and the first tape 106 may not be present in the first pocket area 862 and / or the second pocket area 864. The first pocket area 862 can extend laterally between the third adhesion area 860 and the first longitudinal side 128 of the chassis 102, and the second pocket area 864 can extend laterally between the third adhesion area 860 and the second longitudinal side 130 of the chassis 102. In addition, the first pocket area 862 and the second pocket area 864 can extend longitudinally between the first adhesion area 856 and the second adhesion area 858. In some configurations, the first fastener component 707a; the first accessible opening 802a; and a portion of the first breakable pathway 700a can be positioned in the first pocket area 862. and the second fastener component 707b; the second accessible opening 802b; and a portion of the second frangible pathway 700b can be positioned in the second pocket region 864. In some configurations, the entirety of the portions of the first frangible pathway 700a and the second frangible pathway 700b in the overlap region 850 can be located in the first pocket region 862 and the second pocket region 864, respectively. Because the chassis 102 and the first strap 106 are not permanently bonded together in the pocket regions 862, 864, it can be relatively easy for a user to grasp the first strap 106 and the fastener component 707 through the accessible opening 802 and to initiate and complete the strap tearing process as described above.
[0142] Although the chassis 102 and the first strap 106 may not be bonded to one another in the pocket areas 862, 864, which may help improve the ease with which a user can initiate and complete the strap tearing process, there may be circumstances where it is desirable to provide an arrangement of peelable and / or refastenable bonds in the pocket areas 862, 864 to help increase the strength of the connection between the chassis 102 and the first strap 106 while reducing obstruction to the user's ability to grasp the first strap 106 through the accessible opening 802 and initiate and complete the strap tearing process.
[0143] For example, Figure 8BAs shown, the second adhesive 866 may be positioned between the first belt 106 and the chassis 102 in the first pocket area 862 and / or the second pocket area 864. Instead of permanently bonding the chassis 102 to the first belt 106, the second adhesive 866 may be configured to releasably bond the chassis 102 to the first belt 106 in the first pocket area 862 and / or the second pocket area 864. The second adhesive 866 may be configured to provide additional bonding strength between the chassis 102 and the first belt 106 to help prevent unintentional separation between the chassis 102 and the first belt 106 during use of the diaper pants 100P. When the frangible path 700 is torn during removal of the diaper pants 100P, the second adhesive 866 may be configured to allow the user to relatively easily peel or otherwise separate the first belt area 831 and / or the second belt area 832 from the chassis 102. Thus, the adhesion zone 852 may include a first adhesive strength, and the first pocket zone 862 and / or the second pocket zone 864 may include a second adhesive strength, wherein the first adhesive strength is greater than the second adhesive strength. In some configurations, the second adhesive 866 may be the same as the adhesive 854 positioned in the adhesion zone 852. In some configurations, the second adhesive 866 may be different from the adhesive 854 positioned in the adhesion zone 852.
[0144] In some configurations, the adhesive 854 in the adhesion zone 852 may include a first basis weight, and the second adhesive 866 in the first pocket zone 862 and / or the second pocket zone 864 may include a second basis weight, wherein the first basis weight is equal to or different from the second basis weight. In some configurations, the first basis weight may be greater than the second basis weight. In some configurations, the same or different types of adhesives may be positioned in the first pocket zone 862 and the second pocket zone 864.
[0145] As discussed above, the fastener component 707 may be positioned between the first belt 106 and the base structure 102 in the first pocket area 862 and / or the second pocket area 864. In some configurations, the fastener component 707 may be configured to releasably connect the first belt 106 to the base structure 102 in the first pocket area 862 and / or the second pocket area 864. Such a releasable connection between the fastener component 707 and the base structure 102 may provide additional bonding strength between the base structure 102 and the first belt 106 to help prevent unintentional separation between the base structure 102 and the first belt 106 during use of the diaper pants 100P. When the frangible path 700 is torn during removal of the diaper pants 100P, the releasable connection between the fastener component 707 and the base structure may be configured to allow the user to relatively easily peel or otherwise separate the first belt area 831 and / or the second belt area 832 from the base structure 102.
[0146] As discussed above, the backsheet 136 of the base structure 102 may include a laminate comprising a film layer and a nonwoven layer. In some configurations, the nonwoven layer may completely cover the film layer to define the clothing-facing surface 134 of the base structure 102. In some configurations, the nonwoven layer may partially cover the film layer, and therefore, both the film layer and the nonwoven layer may define the clothing-facing surface 134 of the base structure 102. For example, in some configurations, the film layer may extend completely between the inner edge 107b of the first band 106 and the first lateral edge 144 of the base structure 102, and the nonwoven layer may also extend completely between the inner edge 107b of the first band 106 and the first lateral edge 144 of the base structure 102, to completely cover the film layer and define the clothing-facing surface 134 of the base structure 102 in the overlapped area 850. Therefore, the first band 106 may be bonded to the nonwoven layer in the first adhesion area 856, the second adhesion area 858, and the third adhesion area 860. In some configurations, the nonwoven layer may not extend completely between the inner edge 107b of the first belt 106 and the first lateral edge 144 of the chassis 102, wherein a portion of the film layer may then be positioned to be in direct contact with the first belt 106. Thus, the first belt 106 may be bonded to a portion of the nonwoven layer and a portion of the film layer in the adhesion area 852. For example, the first belt 106 may be bonded to a portion of the nonwoven layer of the backing sheet 136 in the first adhesion area 856 but not in the second adhesion area 858 and not in the third adhesion area 860; whereas the first belt 106 may be bonded to a portion of the film layer of the backing sheet 136 in the first adhesion area 856 and in the second adhesion area 858 and the third adhesion area 860.
[0147] In some configurations, a portion of the nonwoven layer of the backsheet 136 can be positioned between the fastener component 707 and the first belt 106. For example, as described above with reference to Figure 7AA1 and Figure 7AA2 As described, the fastener component 707 may include a hook 715 extending toward the backsheet 136 of the infrastructure 102. Therefore, the hook of the fastener component 707 may be releasably or refastenably connected to the nonwoven layer of the backsheet 136. In some configurations, the hook of the fastener component 707 may not be releasably or refastenably connected to the film layer of the backsheet 136. In some configurations, the fastener component 707 may include a pressure-sensitive adhesive instead of the hook, and therefore, the pressure-sensitive adhesive may releasably connect the fastener component 707 to the backsheet 136 in the first pocket area 862 and / or the second pocket area 864. In some configurations, such a pressure-sensitive adhesive may be configured to releasably or refastenably connect the first band 106 to the nonwoven layer and / or the film layer of the backsheet 136.
[0148] It should be understood that the absorbent articles herein can be assembled in various ways using various types of equipment configured to implement various deformations in various assembly orders. Figure 8C As shown, when assembling the diaper pants 100P, the elastic laminate 200 can be converted into a first elastic belt laminate 200a and / or a second elastic belt laminate 200b (indicated by the dashed arrow "A"). The first elastic belt laminate 200a and the second elastic belt laminate 200b can be separated from each other in the cross direction CD. The adhesive 854 can be intermittently applied to the first elastic belt laminate 200a and the second elastic belt laminate 200b. Figure 8C As shown, adhesive 854 can be applied in a pattern to define adhesion areas 852, as described above with reference to Fig. 8A and Figure 8B As described. It should be understood that adhesive 854 can be applied with an application device configured in various ways, such as, for example, a spray nozzle and / or a slot coating device. In some configurations, the adhesive applicator device can be configured according to the equipment and / or method disclosed in U.S. Patents 8,186,296, 9,265,672, 9,248,054 and 9,295,590 and U.S. Patent Publication 2014 / 0148773A1, all of which are incorporated herein by reference. Subsequently, the opposite end regions of the infrastructure 102 can be permanently bonded (represented by dashed arrow "B") with adhesive 854 in the overlapping region 850 on the first elastic belt laminate 200a and / or the second elastic belt laminate 200b. During the subsequent assembly operation, the infrastructure 102 can be folded (represented by dashed arrow "C") so that the first elastic belt laminate 200a is positioned to be in a facing relationship with the second elastic belt laminate 200b. The bonding element 246 may be applied to the overlapping belt laminates 200a, 200b. Subsequently, the discrete diaper pants 100P may be formed by separating the first belt laminate 200a and the second belt laminate 200b into the first belt 106 and the second belt 108 by cutting through the first belt laminate 200a and the second belt laminate 200b adjacent to the bonding element 246 in the cross-machine direction CD (indicated by the dashed arrow "D"). Thus, the bonding element 246 may be divided to define the first side seam 178 and the second side seam 180, respectively. It should be understood that the breakable path 700 may be formed before and / or after combining the chassis 102 with the first elastic belt laminate 200a and / or the second elastic belt laminate 200b.
[0149] As discussed above, when the frangible path 700 is configured to extend across the cut elastic strands 168 in the first band 106 or the second band 108, the user can tear the first band 106 or the second band 108 along the frangible path 700 relatively easily. For example, the frangible path 700 may include a plurality of weak lines 704 configured such that all of the elastic strands 168 in the first elastic band 106 that would otherwise extend across the frangible path 700 are severed at least once in the frangible path 700. Thus, when the elastic strands 168 are severed, the first substrate 162 and the second substrate 164 of the first band 106 only need to be torn along the frangible path 700 without also tearing the uncut elastic strands 168. As described above with reference to Figure 2A As further discussed, the diaper pant 100P may include outer waist elastics 170 and inner waist elastics 172. The outer waist elastics 170 may extend laterally continuously between the opposing first and second end regions 106a, 106b of the first elastic belt 106 and between the opposing first and second end regions 108a, 108b of the second elastic belt 108. In addition, the inner waist elastic component 172 can be configured to have regional discontinuous portions (such as, for example, where the first elastic belt 106 and the second elastic belt 108 overlap with portions of the chassis 102 (such as the overlap area 850 discussed above). As further described above, the first elastic belt 106 and / or the second elastic belt 108 can be configured to have low-stretch areas 701 and high-stretch areas 703. The first elastic belt 106 and / or the second elastic belt 108 may include a first high-stretch area 703a and a second high-stretch area 703b that are laterally separated by the low-stretch area 701. It should be understood that the diaper pants 100P may include various numbers of breakable pathways 700, which can be positioned in various positions relative to the outer waist elastic component 170, the inner waist elastic component 172, the low-stretch area 701, and the high-stretch area 703.
[0150] Fig. 9 100P are shown in exemplary configurations of a diaper pant 100P, showing various positional relationships between the breakable pathway 700 in the first belt 106 and the elastic strands 168. Fig. 9As shown, the weakness line 704 of the first breakable path 700a can cut or sever all elastic strands 168 extending laterally through the first tear area 813a between the first longitudinal edge 128 of the chassis 102 and the first distal end 808a, and the weakness line 704 of the second breakable path 700b can cut or sever all elastic strands 168 extending laterally through the first tear area 813a between the second longitudinal edge 130 of the chassis 102 and the second distal end 808b. In some configurations, the line of weakness 704 of the first breakable path 700a can sever or cut all elastic strands 168 extending laterally through the first tear region 813a and / or the second tear region 813b between the first accessible opening 802a and the first longitudinal edge 128 of the chassis 102, and the line of weakness 704 of the second breakable path 700b can sever or cut all elastic strands 168 extending laterally through the first tear region 813a and / or the second tear region 813b between the second accessible opening 803b and the second longitudinal edge 130 of the chassis 102. In some configurations, the line of weakness 704 of the first breakable path 700a can sever or cut all elastic strands 168 extending laterally through the second tear region 813a between the first longitudinal edge 128 of the chassis 102 and the first proximal end 810a, and the line of weakness 704 of the second breakable path 700b can sever or cut all elastic strands 168 extending laterally through the second tear region 813a between the second longitudinal edge 130 of the chassis 102 and the second proximal end 810b.
[0151] Still refer to Fig. 9 , the line of weakness 704 of the frangible pathway 700 may extend through and sever the outer waist elastic component 170. For example, the first tear region 813a of the first frangible pathway 700a may extend through the severed outer waist elastic component 170; and the first tear region 813a of the second frangible pathway 700b may extend through the severed outer waist elastic component 170. In some configurations, the outer waist elastic component 170 may extend across the overlap region 850. In some configurations, the outer waist elastic component 170 may be longitudinally positioned between the overlap region 850 and the outer edge 107a of the first belt 106, and may not extend across the overlap region 850. In some configurations, the outer waist elastic component 170 may be severed by the frangible pathway 700 in the overlap region 850, and / or the outer waist elastic component 170 may be severed by the frangible pathway 700 outside the overlap region 850. In addition, the outer waist elastic component 170 may be severed by the first frangible pathway 700a and the second frangible pathway 700b in at least two locations. The outer waist elastic member 170 may be continuously bonded to and between the first substrate 162 and the second substrate 164 of the first belt 106. Therefore, the cut ends of the outer waist elastic member 170 may not retract or may retract a relatively small distance from the weak line 704 of the frangible path 700.
[0152] Continue to refer to Fig. 9 , the line of weakness 704 of the frangible pathway 700 may extend through and cut through some or all of the inner waist elastic components 172. For example, the second tear region 813b of the first frangible pathway 700a may extend through the cut inner waist elastic components 172; and the second tear region 813b of the second frangible pathway 700b may extend through the cut inner waist elastic components 172. In some configurations, the inner waist elastic components 172 may be cut by the frangible pathway 700 in the overlap region 850, and / or the inner waist elastic components 172 may be cut by the frangible pathway 700 outside the overlap region 850.
[0153] In some configurations, the inner waist elastic component 172 may be cut in at least three locations. For example, when forming the low-stretch zone 701, the inner waist elastic component may be cut by a cutting process on the first occasion, and may also be cut by the first cutting path 700a and the second frangible path 700b on the second and third occasions. The inner waist elastic component 172 may also be continuously bonded to and between the first substrate 162 and the second substrate 164 of the first belt 106 in the high-stretch zone 703. Therefore, the cut end of the inner waist elastic component 172 may not retract or may retract a relatively small distance from the weak line 704 of the frangible path 700.
[0154] In some configurations, the first high-stretch region 703a and the second high-stretch region 703b may partially overlap the overlap region 850, or may be completely laterally located outside the overlap region 850. As discussed above, when the low-stretch region 701 and the high-stretch region 703 are formed, the inner waist elastic component 172 may be cut during the cutting operation. When the low-stretch region 701 is formed, the cut inner waist elastic component 172 may be laterally retracted outward by the same or different distances. In some configurations, some of the inner waist elastic components 172 may be longitudinally aligned with the fastener component 704, but may be configured to be retracted to a position laterally outward of the fastener component 704. Therefore, the inner waist elastic component 172 of the high-stretch region 703 may be located laterally outward of the fastener component 704 and may be configured not to overlap with the fastener component 704.
[0155] Average score
[0156] The average decitex method is used to calculate the average decitex of elastic fibers present in the entire article or in a sample of interest extracted from the article on a length-weighted basis. The decitex value is the mass grams of fibers present in 10,000 meters of the material in a relaxed state. The decitex value of elastic fibers or elastic laminates containing elastic fibers is usually reported by the manufacturer as part of the specifications of the elastic fibers or elastic laminates including elastic fibers. If available, the average decitex will be calculated according to these specifications. Alternatively, if these specified values are unknown, the decitex value of a single elastic fiber is measured as follows: the cross-sectional area of the fiber in a relaxed state is determined by a suitable microscopy technique (such as scanning electron microscopy (SEM)), the composition of the fiber is determined by Fourier transform infrared (FT-IR) spectroscopy, and then the literature value of the density of the composition is used to calculate the mass grams of fibers present in 10,000 meters of fiber. The decitex value provided by the manufacturer or experimentally measured for individual elastic fibers removed from the entire article or from a sample extracted from the article is used in the expression below, where the length-weighted average of the decitex values between the elastic fibers present is determined.
[0157] The length of the elastic fibers present in the article or a sample extracted from the article, if known, is calculated from the overall dimensions of the article or sample having these and the elastic fiber pre-strain ratio associated with the components of the article or sample, respectively. Alternatively, the dimensions and / or elastic fiber pre-strain ratio are unknown, the absorbent article or a sample extracted from the absorbent article is disassembled, and all elastic fibers are removed. Such disassembly can be performed, for example, using gentle heating to soften the adhesive, using a low temperature spray (e.g., Quick-Freeze, Miller-Stephenson Company, Danbury, CT), or using an appropriate solvent that will remove the adhesive but will not swell, alter or destroy the elastic fibers. The length of each elastic fiber in its relaxed state is measured and recorded in millimeters (mm), accurate to mm.
[0158] Calculate the average decimal point
[0159] The relaxed length L present in an absorbent article or a sample extracted from an absorbent article i and fiber dtex i Individual elastic fibers f (obtained from manufacturer's specifications or measured experimentally) i For each of the absorbent articles or samples taken from the absorbent articles, the average cup decote of the absorbent article is defined as:
[0160]
[0161] Where n is the total number of elastic fibers present in the absorbent article or a sample extracted from the absorbent article. Report the average decitex to the nearest whole decitex value (grams / 10000 m).
[0162] If the dtex value of any individual fiber is not known from the specification, it is determined experimentally as described below, and the resulting fiber dtex value(s) are used in the above formula to determine the average dtex.
[0163] Experimental determination of the decitex value of fibers
[0164] For each of the elastic fibers removed from the absorbent article or the sample taken from the absorbent article according to the above procedure, each elastic fiber L in its relaxed state k The length of each elastic fiber was measured and recorded in millimeters (mm) to the nearest mm. Each elastic fiber was analyzed by FT-IR spectroscopy to determine its composition and its density r k Determine according to available literature value.Finally, analyze each fiber by SEM.Use sharp blade to vertically cut fiber in three roughly equal positions along its length, to produce the clean cross section for SEM analysis.The three fiber segments exposed with these cross sections are mounted on the SEM sample holder in a relaxed state, sputter-coated with gold, introduced into SEM for analysis, and imaged with a resolution sufficient to clearly illustrate the fiber cross section.The fiber cross section is oriented to be as perpendicular as possible to the detector, to minimize any tilt deformation in the measured cross section.The fiber cross section can vary in shape, and some fibers can be composed of multiple individual filaments.In any case, determine the area of each of the three fiber cross sections (for example, using the diameter of circular fiber, the major axis and minor axis of elliptical fiber and the image analysis of more complex shapes), and record in micrometer square (μm 2 ) as the unit of the three regions of elastic fiber a k Average value, accurate to 0.1μm 2 The measured decitex of the kth elastic fiber is d k Calculated by the following formula:
[0165] d k =10000m×a k × k ×10 -6
[0166] where d k In grams (per 10,000 m of calculated length), a k In μm 2 As a unit, and r k In grams per cubic centimeter (g / cm 3 ) is the unit. For any elastic fiber analyzed, the experimentally determined L k and d k The value is then used in the above expression for average dtex.
[0167] Average strand spacing
[0168] Using a ruler calibrated to a certified NIST ruler and accurate to 0.5 mm, measure the distance between the two distal strands within a segment to the nearest 0.5 mm and then divide by the number of strands in the segment - 1
[0169] Average strand spacing = d / (n-1), where n>1
[0170] Report, accurate to 0.1mm.
[0171] Average prestrain
[0172] The average pre-strain of the specimen is measured using a load cell on a constant rate of extension tensile tester (a suitable instrument is MTS Insight using Testworks 4.0 software, available from MTS Systems Corp., Eden Prairie, MN), with the force measured within 1% to 90% of the limit of the load cell. The article is conditioned at 23°C ± 2°C and 50% ± 2% relative humidity for 2 hours prior to analysis and subsequently tested under the same environmental conditions.
[0173] Program the tensile tester to perform elongation at break after the initial gauge length adjustment. First raise the grips at a rate of 10 mm / min until a force of 0.05 N is achieved. Set the current gauge length to the adjusted gauge length. Raise the grips at a rate of 100 mm / min until the sample breaks (a 20% drop in force after the maximum peak force). Return the grips to their original position. Obtain force and extension data at a rate of 100 Hz throughout the experiment.
[0174] The nominal gauge length is set to 40 mm using a calibrated caliper block and the grips are zeroed. The sample is inserted into the upper grip so that the middle of the test strip is positioned 20 mm below the grip. The sample can be folded perpendicular to the pull axis and placed in the grip to achieve this position. After the grips are closed, excess material can be trimmed. The sample is inserted into the lower grip and the lower grip is closed. Again, the strip can be folded and then trimmed after the grips are closed. Zero the load cell. The sample should have minimal slack but less than 0.05 N of force on the load cell. Start the test procedure.
[0175] From the data construction, force (N) to extension (mm). Average prestrain is calculated according to the bending of the extension that the nonwoven in the elastic component is engaged in the curve. Two lines are drawn, corresponding to the area of the curve before bending (mainly elastic component) and the area after bending (mainly nonwoven). Read the extension where these two lines intersect, and calculate % prestrain according to the measured length of the extension and correction. Record as % prestrain 0.1%. Calculate the arithmetic mean and average prestrain of three repeated samples of each elastomer laminate, accurate to 0.1%.
[0176] combination
[0177] A1. An absorbent article, the absorbent article comprising: a first belt, the first belt comprising an inner surface facing the wearer and an outer surface facing the garment, the first belt also comprising a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outside the inner edge; a second belt, wherein the laterally opposite ends of the second belt are connected to the laterally opposite ends of the first belt at a first side seam and a second side seam to form a waist opening; a base structure, the base structure comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the base structure comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein longitudinally opposite end regions of the base structure are connected to the first belt and the second belt; wherein a portion of the base structure overlaps with the wearer-facing inner surface of the first belt to define a base structure overlap region, wherein the base structure overlap region comprises an adhesive an attachment zone, wherein adhesive is positioned between the base structure and the inner wearer-facing surface of the first band and permanently bonds the base structure to the first band; wherein the adhesion zone includes a first adhesion area adjacent to the inner edge of the first band, a second adhesion area adjacent to the first end edge of the base structure, and a third adhesion area longitudinally positioned between the first adhesion area and the second adhesion area, wherein the first adhesion area includes a first lateral width, the second adhesion area includes a second lateral width, and the third adhesion area includes a third lateral width, and wherein the third lateral width is less than the first lateral width and the second lateral width; a first frangible path and a second frangible path, the first frangible path and the second frangible path extending laterally outward from the third adhesion area in opposite directions across the overlap zone and between the first adhesion area and the second adhesion area, wherein the first frangible path and the second frangible path do not extend across the third adhesion area.
[0178] A2. An absorbent article according to paragraph A1, wherein the overlap area also includes a first pocket area and a second pocket area, wherein the first pocket area extends longitudinally between the first adhesion area and the second adhesion area and extends laterally between the third adhesion area and the first side edge of the base structure, and wherein the second pocket area extends longitudinally between the first adhesion area and the second adhesion area and extends laterally between the third adhesion area and the second side edge of the base structure, wherein there is no adhesive in the first pocket area and the second pocket area connecting the base structure to the first band in the overlap area.
[0179] A3. An absorbent article according to paragraph A2, wherein the first belt is capable of being separated along the first frangible path and the second frangible path to define a first belt region, a second belt region and a third belt region laterally positioned between the first belt region and the second belt region.
[0180] A4. The absorbent article according to paragraph A3 also includes a first fastener component connected to the wearer-facing inner surface of the first belt in the first pocket area of the overlap area, and a second fastener component connected to the wearer-facing inner surface of the first belt in the second pocket area of the overlap area.
[0181] A5. The absorbent article of paragraph A4, further comprising a first accessible opening in the first belt adjacent to the first fastener component, and a second accessible opening in the first belt adjacent to the second fastener component.
[0182] A6. An absorbent article according to paragraph A4, wherein the first fastener component is adapted to repeatedly fastenably connect the first belt area to at least one other component of the absorbent article in a disposal configuration; and wherein the second fastener component is adapted to repeatedly fastenably connect the second belt area to at least one other component of the absorbent article in a disposal configuration.
[0183] A7. The absorbent article of paragraph A6, wherein the first fastener component and the second fastener component each comprise a hook, and wherein the hook extends from the first belt toward the chassis.
[0184] A8. The absorbent article of any of paragraphs A1 to A7, wherein the backsheet comprises a laminate comprising a nonwoven layer and a film layer.
[0185] A9. The absorbent article of paragraph A8, wherein the hooks are in direct contact with the nonwoven layer of the backsheet and are refastenably connected thereto.
[0186] A10. The absorbent article of paragraph A8, wherein the hooks are in direct contact with the film layer and are not refastenably connected thereto.
[0187] A11. The absorbent article of any of paragraphs A1 to A10, wherein the first frangible path and the second frangible path do not extend across the first adhesion area and the second adhesion area.
[0188] A12. The absorbent article of any of paragraphs A1 to A11, wherein the adhesion area comprises laterally extending adhesive strips that are longitudinally separated from each other.
[0189] B1. An absorbent article, the absorbent article comprising: a first belt, the first belt comprising an inner surface facing the wearer and an outer surface facing the garment, the first belt also comprising a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outside the inner edge; a second belt, wherein the laterally opposite ends of the second belt are connected to the laterally opposite ends of the first belt at a first side seam and a second side seam to form a waist opening; a base structure, the base structure comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the base structure comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein the longitudinally opposite end regions of the base structure are connected to the first belt and the second belt; wherein a portion of the base structure overlaps with the wearer-facing inner surface of the first belt to define a base structure overlap region, wherein the base structure overlap region comprises a region wherein an adhesive bonds the base structure to the inner surface of the first belt. An adhesive zone permanently bonded to an inner surface of a wearer, wherein the first adhesive zone includes a first adhesive area adjacent to the inner edge of the first band, a second adhesive area adjacent to the first end edge of the base structure, and a third adhesive area longitudinally positioned between the first adhesive area and the second adhesive area; wherein the adhesive zone is constructed to define a first pocket area and a second pocket area, wherein the first pocket area extends longitudinally between the first adhesive area and the second adhesive area and extends laterally between the third adhesive area and the first side edge of the base structure, and wherein the second pocket area extends longitudinally between the first adhesive area and the second adhesive area and extends laterally between the third adhesive area and the second side edge of the base structure, wherein no adhesive permanently connects the base structure to the first band in the overlap area in the first pocket area and the second pocket area; wherein the first band is releasably bonded to the base structure in the first pocket area and the second pocket area; and a breakable path extending across the first pocket area.
[0190] B2. The absorbent article of paragraph B1, further comprising a second adhesive positioned between the chassis and the wearer-facing inner surface of the first belt in the first pocket region and the second pocket region.
[0191] B3. An absorbent article according to paragraph B2, wherein the adhesion area comprises a first bond strength and the first pocket area comprises a second bond strength, wherein the first bond strength is greater than the second bond strength.
[0192] B4. An absorbent article according to paragraph B2 or B3, wherein the adhesive in the adhesion area is different from the second adhesive in the first pocket area.
[0193] B5. The absorbent article of any of paragraphs B2 to B4, wherein the adhesive in the adhesion area comprises a first basis weight and the second adhesive comprises a second basis weight, wherein the first basis weight is greater than the second basis weight.
[0194] B6. An absorbent article according to any one of paragraphs B1 to B5, wherein the first adhesion area includes a first lateral width, the second adhesion area defines a second lateral width, and the third adhesion area defines a third lateral width, and wherein the third lateral width is smaller than the first lateral width and the second lateral width.
[0195] B7. The absorbent article of any of paragraphs B1 to B6, further comprising a first fastener component positioned on the wearer-facing inner surface of the first belt in the first pocket region.
[0196] B8. An absorbent article according to paragraph B7, wherein the first fastener component releasably connects the first belt to the base structure.
[0197] C1. An absorbent article, the absorbent article comprising: a first belt, the first belt comprising an inner surface facing the wearer and an outer surface facing the garment, the first belt also comprising a laterally extending inner edge and a laterally extending outer edge, the outer edge being positioned longitudinally outside the inner edge; a second belt, wherein laterally opposite ends of the second belt are connected to laterally opposite ends of the first belt at a first side seam and a second side seam to form a waist opening; a base structure, the base structure comprising a top sheet, a back sheet and an absorbent core positioned between the top sheet and the back sheet, the base structure comprising a longitudinally extending first side edge and a longitudinally extending second side edge, the second side edge being laterally separated from the first side edge by a first end edge and a second end edge longitudinally separated from the first end edge, and wherein longitudinally opposite end regions of the base structure are connected to the first belt and the second belt; wherein a portion of the base structure is connected to The wearer-facing inner surface of the first band overlaps to define a chassis overlap region, wherein the chassis overlap region includes an adhesion region, wherein an adhesive is positioned between the chassis and the wearer-facing inner surface of the first band; wherein the adhesion region includes a first adhesion area adjacent to the inner edge of the first band, a second adhesion area adjacent to the first end edge of the chassis, and a third adhesion area longitudinally positioned between the first adhesion area and the second adhesion area; a frangible path extending laterally outward from the third adhesion area across the overlap region and between the first adhesion area and the second adhesion area, wherein the first frangible path does not extend across the third adhesion area; and a first fastener component connected to the wearer-facing inner surface of the first band in the overlap region and outside the adhesion region.
[0198] C2. The absorbent article of paragraph C1, further comprising an accessible opening in the first band adjacent to the fastener component.
[0199] C3. The absorbent article of any of paragraphs C1 or C2, wherein the fastener component is adapted to be refastenably connected with at least one other component of the absorbent article in a disposal configuration.
[0200] C4. The absorbent article of any of paragraphs C1 to C3, wherein the fastener component comprises a hook, and wherein the hook extends from the first belt toward the chassis and is in direct contact with the chassis.
[0201] C5. An absorbent article according to paragraph C4, wherein the backsheet comprises a laminate comprising a nonwoven layer and a film layer, wherein the hooks are in direct contact with the film layer and are not refastenably connected to the film layer.
[0202] C6. The absorbent article of any of paragraphs C1 to C5, wherein the fastener component comprises a pressure-sensitive adhesive, and wherein the pressure-sensitive adhesive is in direct contact with the backsheet and is refastenably attached.
[0203] D1. A method for assembling an absorbent article, the method comprising the following steps: providing a first elastic laminate, the first elastic laminate comprising an elastic strand positioned between and connected to a first substrate and a second substrate, the elastic strand extending in a longitudinal direction, the first elastic laminate further comprising a first edge separated from a second edge in a transverse direction; providing a second elastic laminate; applying an adhesive to the first elastic laminate to define an adhesion area; providing a base structure, the base structure comprising a body-facing surface and a garment-facing surface and an absorbent core positioned between the body-facing surface and the garment-facing surface, the base structure further comprising a first end edge and an absorbent core extending through a crotch region A second end edge separated from the first end edge in the transverse direction; and bonding the base structure to the first elastic laminate using an adhesive in the adhesion area; wherein the adhesion area includes a first adhesion area adjacent to the second edge of the elastic laminate, a second adhesion area adjacent to the first end edge of the base structure, and a third adhesion area longitudinally positioned between the first adhesion area and the second adhesion area, and wherein the first adhesion area includes a first width, the second adhesion area defines a second width, and the third adhesion area defines a third width, and wherein the third width is smaller than the first width and the second width; and bonding the second end area of the base structure to the second elastic laminate.
[0204] D2. The method described in paragraph D1 also includes the step of forming a first breakable path and a second breakable path in the first elastic laminate, wherein the first breakable path and the second breakable path include a weak line, wherein all elastic strands extending through the first breakable path and the second breakable path are cut at the weak line.
[0205] D3. The method according to paragraph D2, wherein the base structure overlaps with portions of the first breakable pathway and the second breakable pathway.
[0206] Biobased content of components
[0207] The components of the absorbent articles described herein may be at least partially composed of bio-based content, as described in U.S. Patent Application No. 2007 / 0219521A1. For example, the superabsorbent polymer component may be bio-based via its derivation from bio-based acrylic acid. Bio-based acrylic acid and its production method are disclosed in U.S. Patent Application Publication No. 2007 / 0219521 and U.S. Patents 8,703,450, 9,630,901 and 9,822,197. Other components such as nonwovens and film components may contain bio-based polyolefin materials. Bio-based polyolefins are further discussed in U.S. Patent Application Publication Nos. 2011 / 0139657, 2011 / 0139658, 2011 / 0152812 and 2016 / 0206774 and U.S. Patent No. 9,169,366. Example bio-based polyolefins for use in the present disclosure include those that may be referred to as SHA7260 TM 、SHE150 TM or SGM9450F TM The polymers obtained (all available from Braskem SA).
[0208] The absorbent article component may include a biobased content value of, for example, from about 10% to about 100%, from about 25% to about 100%, from about 40% to about 100%, from about 50% to about 100%, from about 75% to about 100%, or from about 90% to about 100%, as measured using ASTM D6866-10 Method B.
[0209] Recycling-friendly and bio-based absorbent products
[0210] The components of the absorbent articles described herein can be recycled for other purposes, whether or not they are (at least partially) formed by recyclable materials. Examples of recyclable absorbent article materials are nonwovens, films, fluff pulp, and superabsorbent polymers. The recycling process can sterilize the absorbent articles using an autoclave, and then the absorbent articles can be shredded and separated into different by-product streams. Example by-product streams may include plastics, superabsorbent polymers, and cellulose fibers, such as pulp. These by-product streams can be used to produce fertilizers, manufacture plastic products, paper products, viscose, building materials, pets, or absorbent pads on hospital beds and / or other uses. More details about absorbent articles that are helpful for recycling, designs of recycling-friendly diapers, and designs of recycling-friendly and bio-based component diapers are disclosed in U.S. Patent Application Publication No. 2019 / 0192723 published on June 27, 2019.
[0211] The dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values cited. Instead, unless otherwise indicated, each such dimension is intended to represent the stated value and a functionally equivalent range around that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm".
[0212] Unless expressly excluded or otherwise limited, each document cited herein, including any cross-referenced or related patent or patent application and any patent application or patent to which this application claims priority or the benefit of, is hereby incorporated by reference in its entirety. The citation of any document is not an admission that it is prior art to any of the present invention disclosed or claimed herein, or an admission that it, by itself or in combination with any one or more of the references, proposes, suggests, or discloses any such invention. In addition, to the extent that any meaning or definition of a term in this invention conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this invention shall govern.
[0213] Although specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present invention. Therefore, it is intended that all such changes and modifications within the scope of the present invention be covered in the appended claims.
Claims
1. An absorbent article, comprising: a first belt (106), the first belt comprising an inner surface (115b) facing the wearer and an outer surface (115a) facing the garment, the first belt (106) further comprising a laterally extending inner edge (107b) and a laterally extending outer edge (107a), the outer edge (107a) being positioned longitudinally outward of the inner edge (107b); a second belt (108), wherein laterally opposite ends (108a, 108b) of the second belt (108) are connected to laterally opposite ends (106a, 106b) of the first belt (106) at a first side seam (178) and a second side seam (180) to form a waist opening (110); A chassis (102) comprising a top sheet (138), a back sheet (136) and an absorbent core (140) positioned between the top sheet (138) and the back sheet (136), the chassis (102) comprising a longitudinally extending first side edge (138) and a longitudinally extending second side edge (140), the second side edge being laterally separated from the first side edge (138) by a first end edge (144) and a second end edge (146) longitudinally separated from the first end edge (144), and wherein longitudinally opposite end regions (116a, 118a) of the chassis (102) are connected to the first band (106) and the second band (108); wherein a portion of the chassis (102) overlaps the wearer-facing inner surface (115b) of the first belt (106) to define a chassis overlap region (850), wherein the chassis overlap region (850) includes an adhesion region (852), wherein an adhesive (854) is positioned between the chassis (102) and the wearer-facing inner surface (115b) of the first belt (106) and permanently bonds the chassis (102) to the first belt (106); wherein the adhesion zone (852) comprises a first adhesion region (856) adjacent to the inner edge (107b) of the first band (106), a second adhesion region (858) adjacent to the first end edge (144) of the base structure (102), and a third adhesion region (860) longitudinally positioned between the first adhesion region (856) and the second adhesion region (858), wherein the first adhesion region (856) comprises a first lateral width (LW1), the second adhesion region (858) comprises a second lateral width (LW2), and the third adhesion region (860) comprises a third lateral width (LW3), and wherein the third lateral width (LW3) is smaller than the first lateral width (LW1) and the second lateral width (LW2); A first frangible path (700a) and a second frangible path (700b), wherein the first frangible path and the second frangible path extend laterally outward from the third adhesion area (860) across the overlap area (850) in opposite directions and extend between the first adhesion area (856) and the second adhesion area (858), wherein the first frangible path (700a) and the second frangible path (700b) do not extend across the third adhesion area (860).
2. An absorbent article according to claim 1, wherein the overlap area (850) further includes a first pocket area (862) and a second pocket area (864), wherein the first pocket area (862) extends longitudinally between the first adhesion area (856) and the second adhesion area (858) and extends laterally between the third adhesion area (860) and the first side edge (128) of the base structure (102), and wherein the second pocket area (864) extends longitudinally between the first adhesion area (856) and the second adhesion area (858) and extends laterally between the third adhesion area (860) and the second side edge (130) of the base structure (102), wherein no adhesive is present in the first pocket area (862) and the second pocket area (864) connecting the base structure (102) to the first band (106) in the overlap area (850).
3. An absorbent article according to claim 1 or 2, wherein the first belt (106) is capable of being separated along the first breakable path (700a) and the second breakable path (700b) to define a first belt area (831), a second belt area (832) and a third belt area (833) laterally positioned between the first belt area (831) and the second belt area (832).
4. The absorbent article according to claim 2 or 3 further comprises a first fastener component (707a) connected to the wearer-facing inner surface (115b) of the first belt (106) in the first pocket area (862) of the overlap area (850), and a second fastener component (707b) connected to the wearer-facing inner surface (115b) of the first belt (106) in the second pocket area (864) of the overlap area (850).
5. The absorbent article according to claim 4 further comprises a first accessible opening (802a) in the first belt (106) adjacent to the first fastener component (707a), and a second accessible opening (802b) in the first belt (106) adjacent to the second fastener component (707b).
6. An absorbent article according to claim 4 or 5, wherein the first fastener component (707a) is adapted to repeatedly fastenably connect the first belt area (831) to at least one other component of the absorbent article in a disposal configuration; and wherein the second fastener component (707b) is adapted to repeatedly fastenably connect the second belt area (832) to at least one other component of the absorbent article in a disposal configuration.
7. An absorbent article according to any one of claims 4 to 6, wherein the first fastener component (707a) and the second fastener component (707b) each include a hook (715), and wherein the hook (715) extends from the first band (106) toward the base structure (102).
8. The absorbent article according to claim 7, wherein the backsheet (136) comprises a laminate comprising a nonwoven layer and a film layer.
9. The absorbent article according to claim 8, wherein the hooks (715) are in direct contact with the nonwoven layer of the backsheet (136) and are refastenably connected thereto.
10. The absorbent article according to claim 8, wherein the hooks (715) are in direct contact with the film layer and are not refastenably connected thereto.
11. The absorbent article according to any one of the preceding claims, wherein the first breakable path (700a) and the second breakable path (700b) do not extend across the first adhesion area (856) and the second adhesion area (858).
12. The absorbent article according to any one of the preceding claims, wherein the adhesion area (852) comprises laterally extending adhesive strips that are longitudinally separated from each other.
Citation Information
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