Laminated ear sticker with embossing and buckling type paper diaper with same

Abstract

The utility model discloses a laminated ear sticker with embossments, which comprises a hot air non-woven fabric top layer with a first embossed protruding area, the distance between two adjacent rows of protruding patterns in the first embossed protruding area is equal, and the protruding patterns in each row are uniformly distributed at intervals; the non-woven carrier sheet layer is located below the hot air non-woven fabric top layer, and the non-woven carrier sheet layer and the hot air non-woven fabric top layer form a laminated structure through thermal bonding or ultrasonic bonding. The embossed laminated ear patch can achieve excellent and desirable softness and tensile properties. The utility model further relates to a buckling type paper diaper with the buckling type paper diaper.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to embossed laminated ear stickers with ideal softness and stretchability and a snap-on diaper with the inclined ear stickers which are convenient for fitting the body of a user. Background Art

[0002] Snap-on diapers are not only an indispensable product for infants and young children in their daily lives, but are also suitable for the daily lives of adult users with specific needs. They not only provide a comfortable wearing experience, but also effectively absorb the body excretions of infants and young children and adult users, keeping the private parts of infants and young children and adult users dry.

[0003] In order to fit the diaper to the waist and abdomen of infants or other wearers, ear stickers are usually provided on the waist edge, especially on both sides of the rear waist. The ear stickers described in the prior art are usually manufactured separately from the main body of the diaper to which they are joined, and then placed horizontally along the rear waist in a later process, and the rear waist of the diaper is joined to the front waist in a face-to-face relationship to fully surround the waist and abdomen of infants or adult users.

[0004] The ear patches of diapers known at present can be roughly divided into two types, wherein the first type is an ear patch made of a single high basis weight material, for example, see the Chinese invention patent application publication document with publication number CN102548517A, which discloses an absorbent article with an embossed ear patch, wherein an ear patch composed of an elastic nonwoven fabric layer is disclosed, wherein in order to have improved strength and extended durability between the outermost corner of the diaper and the fastening tab of the fastening system, the distal end of the ear patch is embossed at least in the portion where it is adhesively bonded to the corresponding fastening tab to form at least one embossed groove extending along at least 30% of the width (w) of the at least one fastening tab. With such a design, the ear patch with embossing has satisfactory fastening properties. However, since the diaper is a part that often contacts the thigh of an infant during wearing, the ear patch made of a single high basis weight material is unsatisfactory in softness and fluffiness. As a result, when infants and young children wear such ear stickers, they often get red marks from friction on their thigh skin, which reduces consumers' satisfaction and acceptance of such embossed ear stickers.

[0005] Further, a composite elastic ear patch is proposed, wherein the ear patch is a laminate comprising an outer layer, an elastomer layer and an inner layer in sequence, wherein the elastomer layer provides ductility to the laminate, and the outer layer and the inner layer are relatively non-stretchable, but suitable for providing durability and desired tactile properties. This ear patch can also be in the form of a gathered laminate, wherein the outer layer forms a wave-like pattern when the elastic layer is relaxed, and feels fluffy and soft. The gathered laminate can be formed by extending the elastic layer material to a degree greater than the outer layer material during lamination. As an example, for example, the Chinese invention patent application publication with publication number CN115484909A can be referred to. However, the materials and processes required to make such a composite elastic ear patch are quite complicated, for example, the outer layer, the elastomer layer and the inner layer need to be laminated in sequence and mechanical activation is required after lamination to form the final elastic ear patch, which brings higher manufacturing costs and production complexity.

[0006] Therefore, there is a real need in the art to provide an ear patch with desired softness and stretchability, so as to avoid the phenomenon of rubbing against the thigh skin to produce red marks. There is also a real need to provide such an ear patch in a manner that is simple and feasible to manufacture and / or has low cost. Utility Model Content

[0007] Therefore, the task of the present invention is to provide a laminated ear patch with embossing, thereby at least partially overcoming the above-mentioned shortcomings of the prior art.

[0008] In order to accomplish the above-mentioned task, the utility model provides a laminated ear patch with embossing, which is suitable for being joined to both sides of the back sheet of a snap-on diaper to be snapped with the fasteners of the front sheet of the diaper, and converting the snap-on diaper in an open state into a closed or wearing state of the snap-on diaper, characterized in that the laminated ear patch comprises: a top layer of hot air non-woven fabric, wherein the top layer comprises a first embossed protrusion area composed of a plurality of columns of protrusion patterns arranged in parallel, and the spacing between the protrusion patterns of two adjacent columns in the first embossed protrusion area is equal The invention relates to a method of manufacturing a heat-through nonwoven fabric having a thickness of 0.8 to 1.2 mm and a basis weight of 18 to 30 g / m2; a nonwoven carrier sheet layer located below the heat-through nonwoven fabric top layer, wherein the nonwoven carrier sheet layer forms a laminate structure with the heat-through nonwoven fabric top layer via thermal bonding or ultrasonic bonding, wherein the nonwoven carrier sheet layer has a thickness of 0.2 to 0.4 mm and a basis weight of 32 to 50 g / m2.

[0009] Therefore, the utility model can at least achieve the following beneficial technical effects: the embossed laminated ear patch can achieve excellent and desirable softness and stretchability, and can have satisfactory basis weight and softness while ensuring desirable stretchability; at the same time, a satisfactory surface morphology in the height direction can be formed by arranging multiple rows of parallel protrusion patterns on the top layer of the hot air non-woven fabric. This 3D embossing design can effectively reduce the contact area between the top layer of the hot air non-woven fabric and the skin and reduce the friction area between the surface layer and the skin during use, thereby improving the softness and skin-friendliness of the laminated ear patch.

[0010] As a preferred aspect, it also includes a second hot air nonwoven fabric bottom layer located below the nonwoven carrier sheet layer, wherein the bottom layer includes a second embossed protrusion area composed of multiple columns of parallel arranged protrusion patterns, the spacing between two adjacent columns of protrusion patterns in the second embossed protrusion area is equal, and the protrusion patterns in each column are evenly spaced, wherein the height of these protrusion patterns is at least about 0.1 mm, wherein the thickness of the hot air nonwoven fabric bottom layer is 0.8 to 1.2 mm, and its basis weight is 18-30 g / m2, and it forms a laminated structure with the nonwoven carrier sheet layer via heat sealing or ultrasonic bonding.

[0011] Furthermore, the protrusion pattern in the first embossed protrusion area and / or the second embossed protrusion area is generally circular, which is defined by a plurality of bonding points distributed in a circular shape, wherein the diameter of the protrusion pattern is generally 0.1 mm to about 3 mm, and the spacing between the protrusion patterns in each column is generally 8 to 10 mm.

[0012] As a preferred aspect, the first embossed protrusion area and / or the second embossed protrusion area also includes a plurality of columns of second patterns which are generally curved and defined by a plurality of bonding points, wherein the maximum spacing between two adjacent columns of second patterns is generally 2-3 times the diameter of the circular protrusion pattern, and the minimum spacing is generally 0.4 to 0.6 times the diameter of the circular protrusion pattern.

[0013] Furthermore, the nonwoven carrier sheet layer is substantially composed of meltblown nonwoven fabric or spunbonded nonwoven fabric.

[0014] As a preferred aspect, the embossed laminated ear patch does not have an elastomer located between the top layer of the hot air nonwoven fabric and the nonwoven carrier sheet layer, and / or does not have an elastomer located between the bottom layer of the hot air nonwoven fabric and the nonwoven carrier sheet layer.

[0015] As a preferred aspect, the laminated ear patch having a laminated structure has a softness of 400,000 to 450,000 millinewtons and an elongation at break of 80 to 95%.

[0016] The utility model also relates to a snap-on diaper, which has a longitudinal center line, a front piece, a back piece and a crotch area, wherein the crotch area extends longitudinally between the front piece and the back piece and connects the front piece and the back piece, and comprises: an absorbent assembly, which has a lining layer defining the body-facing side of the inner surface of the diaper, an outer cover layer defining the clothes-facing side of the outer surface of the diaper, and an absorbent core arranged between the lining layer and the outer cover layer; a pair of ear stickers, which extend outward from the back piece from opposite sides of the back piece; and a fastening system, which comprises a fastening system located in each of the pair of ear stickers. The invention relates to a first fastener on a front piece and a second fastener located on the front piece; wherein the first fasteners in the pair of ear stickers are arranged as inclined components to have a certain inclination angle relative to the rear waist edge of the rear piece when the snap-fit ​​diaper is in the open state, wherein the inclination angle is set to allow the first fasteners in the pair of ear stickers to convert the snap-fit ​​diaper in the open state into the closed or worn state of the snap-fit ​​diaper, and the first fasteners and the second fasteners can be fastened to each other along the inclination angle, so that there is basically no gap between the rear piece and the rear waist part when the snap-fit ​​diaper is in the worn state.

[0017] Furthermore, the pair of ear stickers include a wrapping piece and an ear sticker gripping area, wherein the wrapping piece of the ear sticker is generally horizontally arranged at the side edges of the rear waist on both sides of the back piece and close to the edge of the rear waist, and each ear sticker gripping area is constructed to extend at a certain inclination angle toward the edge of the rear waist relative to its own wrapping piece.

[0018] Furthermore, the pair of ear stickers include a wrapping piece and an ear sticker gripping area, wherein each ear sticker gripping area extends laterally outward through its own wrapping piece, and wherein the pair of ear stickers are constructed to extend as a whole at an inclined angle toward the rear waist edge through their own wrapping pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A line drawing is shown in which a top view of a conventional snap-on diaper in a flat open state is shown, wherein the inner surface of the diaper facing the clothes when the diaper is not closed and the ear sticker structure according to the conventional art are shown;

[0020] Figure 2A and Figure 2B The first and second embodiments of the laminated ear patch with embossing according to the utility model are shown in cross-sectional views respectively;

[0021] Figure 3 An example diagram of an embossed pattern of a laminated ear patch with embossing according to the utility model is shown in a plan view;

[0022] Figure 4is a top view of the snap-on diaper according to the utility model in a flat-laid open state, wherein a first inclined ear patch structure of the diaper is specifically shown;

[0023] Figure 5 is a top view of the snap-on diaper according to the utility model in a flat-laid open state, wherein another inclined ear patch arrangement of the diaper is specifically shown;

[0024] Figure 6 This is a physical picture of the embossed laminated ear patch according to the utility model.

[0025] Reference numerals used repeatedly in the present specification and drawings are intended to represent the same or similar elements of the present invention.

[0026] Description of Reference Numerals

[0027] 100-Snap-on diaper 110-Front piece 111-Front waist edge 120-Back piece

[0028] 121-back waist edge 122-ear patch 122A-wrapping piece 122B-ear patch grip

[0029] 123- back waist side edge 124- back waist elastic band 130- crotch area

[0030] 131- side edge 150- absorbent core 151- leg cuff 160- outer cover layer 161- front waist fastening belt

[0031] 162-urine display part 163-bottom film layer 164-auxiliary fastener L-longitudinal center line

[0032] T- transverse fold line X- transverse Y- longitudinal 20- laminate

[0033] 20A-hot air nonwoven top layer 20B-nonwoven carrier sheet layer 20C-hot air nonwoven bottom layer

[0034] h1 - first height h2 - second height h3 - third height P1 - first embossed protrusion area

[0035] P2 - second embossed raised area 21A, 21B, 21C - first, second and third raised patterns

[0036] r1-diameter d1-longitudinal spacing d2-transverse spacing l-bonding point length w-bonding point width

[0037] 122B1-Lower edge of the ear grip; 122B2-Upper edge of the ear grip

[0038] T1-First transverse line DETAILED DESCRIPTION

[0039] Those skilled in the art will appreciate that the following description of the detailed embodiments is merely illustrative of exemplary embodiments and is not intended to limit the broader aspects of the present disclosure.

[0040] Definition of terms

[0041] With respect to absorbent articles, "disposable" means absorbent articles that are not generally intended to be washed or otherwise restored or reused as absorbent articles (i.e., they are intended to be discarded after a single use, and preferably can be recycled, composted, or otherwise discarded in an environmentally compatible manner). Disposable absorbent articles generally include adhesives that are located between layers and / or elements to secure the articles together (e.g., ears, side panels, and belts are bonded to the infrastructure via adhesives, and the layers of ears, side panels, belts, and infrastructure are bonded together using adhesives). Alternatively, thermal bonding and / or ultrasonic bonding are used with or in place of adhesives. In this case, some parts of the material layers may be partially melted and pressed together so that once cooled, they are physically bonded together. Nonwovens (including, for example, polypropylene, polyethylene, etc.) adhesives (including, for example, styrene block copolymers (e.g., SIS, SBS)) and absorbent gelling materials constitute more than 50%, more than 75%, and generally more than 90% of the weight of disposable absorbent articles. Furthermore, the core including the absorbent gelling material is generally kept in the infrastructure in a manner that encapsulates and accommodates the absorbent gelling material under normal conditions. Such disposable absorbent articles typically have an absorbent capacity greater than about 100 mL of fluid, and may have a capacity of up to about 500 mL of fluid or more. Stitching (including the use of thread) and / or woven materials are typically not used to make disposable absorbent articles. If stitching or woven materials are used, they constitute a very small percentage of the disposable absorbent article.

[0042] "Pants" (also referred to as "training pants," "pre-closed diapers," "diaper pants," "diapers," and "pull-on diapers") refer herein to disposable absorbent articles designed for infant wearers with a continuous peripheral waist opening and continuous peripheral leg openings. Pants can be constructed with a continuous or closed waist opening and two continuous, symmetrically arranged closed leg openings before the article is applied to the wearer. 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., seams, heat bonds, ultrasonic welding, adhesives, cohesive bonds, 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).

[0043] As used in the present invention, the term "nonwoven" or "nonwoven" generally refers to a web having a structure of individual fibers or yarns that is a sandwich, but not in a discernible manner such as a knitted fabric. Examples of suitable nonwoven or nonwoven fabrics or webs include, but are not limited to, meltblown webs, spunbond webs, bonded-carded webs, air-laid webs, coformed webs, hydroentangled webs, and the like.

[0044] The term "spunbond" as used herein refers to a process in which a molten thermoplastic material is extruded in the form of filaments from a plurality of generally circular fine capillaries of a spinneret, and then the diameter of the extruded filaments is rapidly reduced to form fine fibers by processes such as those shown in U.S. Pat. No. 4,340,563 of Appel et al., U.S. Pat. No. 3,692,618 of Dorschner et al., U.S. Pat. No. 3,802,817 of Matsuki et al., U.S. Pat. Nos. 3,338,992 and 3,341,394 of Kinney, U.S. Pat. No. 3,502,538 of Levy, U.S. Pat. No. 3,502,763 of Hartman, and U.S. Pat. No. 3,542,615 of Dobo et al. Spunbond fibers are generally continuous and have a diameter greater than 7 microns, specifically, having a diameter between about 10-30 microns. Spunbond fibers are generally not sticky when they are placed on a collecting surface.

[0045] The term "meltblowing" as used herein refers to a process in which fibers are produced by extruding a molten thermoplastic material in the form of a molten wire or filament from a plurality of generally circular die fine capillaries into a high-speed gas stream (e.g., air stream) that thins the molten thermoplastic material and reduces its diameter to the diameter of a microfiber. Thereafter, the meltblown fibers are carried by the high-speed gas stream and fall onto a collecting surface to form a randomly distributed meltblown fiber web. Such a process is disclosed, for example, in U.S. Pat. No. 3,849,241 to Butin. Meltblown fibers are continuous or discontinuous microfibers that are generally less than 10 microns in diameter.

[0046] The term "hot air" used herein refers to the following thermal bonding process, which uses a bi-component fiber with a parallel structure or a skin-core structure, and after being combed into a web, the composite fiber is heated by hot air. After the PE in the composite fiber is melted, the fibers overlap each other and become a non-woven material with certain strength and elongation properties after cooling. Since it is not subjected to pressure during the processing, the elasticity and fluffiness of the hot air non-woven material are much better than those of non-woven materials made by other processes. It feels soft and fluffy, which can make the user feel comfortable.

[0047] "Proximal" and "distal" refer to the location of an element relatively close to or away from the longitudinal or lateral centerline of a structure, respectively (e.g., relative to the same longitudinal axis, the proximal edge of a longitudinally extending element is located closer to the longitudinal axis than the distal edge of the same element).

[0048] "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).

[0049] As used in the present invention, the term "stretchable" or "extensibility" generally refers to a material that stretches or elongates its relaxed length or width by at least about 25%, in some embodiments about 50%, and in some embodiments at least about 75% in the direction of force. A stretchable material does not necessarily have recovery properties. For example, an elastomeric material is an stretchable material with recovery properties. A meltblown web may be stretchable but not have recovery properties and is therefore an stretchable non-elastic material.

[0050] As used in the present invention, the term "elastomeric" or "elastic" generally refers to a material that is stretched in at least one direction (e.g., MD direction) by applying a stretching force, and that shrinks / recovers to approximately its original size by releasing the stretching force. For example, a stretched material may have a stretched length that is at least about 50% longer than its relaxed, unstretched length, and, by releasing the stretching force, it may recover to a length within at least 50% of its stretched length. A hypothetical example may be a 1 inch sample of a material that may be stretched to 1.50 inches and, by releasing the stretching force, will recover to a length of no more than 1.25 inches. Ideally, the material shrinks or recovers by at least 50%, and even more ideally, at least 80% of the stretched length.

[0051] As used herein, the term "bond" refers to the joining, adhering, connecting, attaching, etc. of two elements. Two elements will be considered to be joined together when they are joined, adhered, connected, attached, etc. directly to each other or indirectly to each other, such as when bonded to an intermediate element. Bonding can be performed via, for example, adhesives, pressure bonds, heat bonds, ultrasonic bonds, splicing, stitching, and / or welding.

[0052] As used herein, the term "elastic member" includes an elastic elongated material, such as but not limited to elastic rubber bands and elastic fiber nonwoven fabrics, wherein the elastic rubber bands can be made of spandex in a warp beam manner according to a spinning process.

[0053] The term "open" means that the opposing waist regions are not initially joined to form a continuous waist opening and leg openings prior to or during application of the article to a wearer.

[0054] The term "closed" means that the opposing waist regions are permanently or refastenably joined when encapsulated to form a continuous waist opening and leg openings.

[0055] Snap-on diapers

[0056] First, the basic structure of the snap-fit ​​diaper of this embodiment will be described with reference to the accompanying drawings. Figure 1 A top plan view of a first embodiment of a snap-on diaper known in the prior art is shown in line drawing form, with the garment-facing side thereof being shown. Figure 1 The snap-fit ​​diaper 100 shown in FIG. 1 is a disposable absorbent article designed to be placed against or in close proximity to the wearer's body to absorb and contain various discharges discharged from the body. Figure 1 As preferably shown in the figure, in the longitudinal direction Y, the snap-fit ​​diaper 100 has a front panel 110, a crotch region 130 and a back panel 120 in sequence, wherein the crotch region 130 extends between the front panel 110 and the back panel 120 and connects the front panel 110 and the back panel 120.

[0057] In the thickness direction of the snap-on diaper 100, the diaper 100 is Figure 1 The inner direction of the paper surface in the figure may include the lining layer facing the body, the outer cover layer 160 facing the clothes, and the absorbent core 150 located between the lining layer facing the body and the outer cover layer 160 facing the clothes. Here, the lining layer facing the body, the outer cover layer 160 facing the clothes, and the absorbent core 150 sandwiched between the two together define the absorbent assembly of the snap-on diaper 100. The absorbent assembly can be of any suitable shape, including, for example, Figure 1 Roughly I-shaped as shown.

[0058] Since the snap-on diaper 100 is a thin product, Figure 1 In the two-dimensional line drawing shown, the front panel 110 refers to the portion of the diaper 100 that is generally located in front of the wearer when the infant and adult user puts on the diaper 100. The back panel 120 refers to the portion of the diaper 100 that is generally located behind the wearer when the infant and adult user puts on the diaper 100, and the crotch region 130 refers to the portion that is generally located between the legs of the wearer when the infant and adult user puts on the diaper 100.

[0059] exist Figure 1In the embodiment shown in, the back piece 120 includes a straight back waist edge 121 and the front piece 110 includes a straight front waist edge 111 and a substantially straight back waist side edge 123. Here, "straight edge" refers to an edge that is substantially free of bends, bends, angles, notches or irregularities. The lining layer facing the body side of the snap-on diaper 100 defines a surface facing the wearer's body, which is intended to be worn adjacent to the wearer's body and in direct contact with the wearer's body. The lining layer facing the body side is suitably compliant, soft and non-irritating to the wearer's skin. The lining layer facing the body side is less hydrophilic than the absorbent core 150 and its porosity is sufficient to allow liquid penetration. The lining layer facing the body side can be made of a variety of suitable web materials, such as porous foam, cellular foam, perforated plastic film, natural fibers (e.g., wood fibers or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers) or a combination of natural fibers and synthetic fibers. The body-facing liner layer is suitably adapted to isolate the wearer's skin from liquids and moisture retained by the absorbent core 150.

[0060] exist Figure 1 The outer cover layer 160 of the diaper 100 is also schematically shown to define a garment-facing surface that is intended to be worn adjacent to the wearer's clothing. In one suitable embodiment, the outer cover layer 160 includes a woven or nonwoven web layer that is fully or partially constructed or treated to impart a desired degree of liquid impermeability to selected areas of the outer cover layer 160 adjacent to or near the absorbent core 150. Here, a bottom film layer 163 is also provided between the outer cover layer 160 and the absorbent core 150, and the bottom film layer 163 may include a microporous "breathable" material that allows vapor to escape from the diaper 100 while still preventing liquid exudates from passing through. For example, the bottom film layer 163 may be composed of a microporous polymer film or nonwoven fabric that has been coated or otherwise treated to impart a desired degree of liquid impermeability. The outer cover layer 160 may also be adjacently provided with a bottom film layer 163 that includes an embossed or otherwise provided visual pattern layer to convey visual cues or information to the wearer or caregiver. Preferably, the bottom film layer 163 between the outer cover layer 160 and the absorbent core 150 can be a thin layer made of a polyethylene resin carrier with an appropriate amount of calcium carbonate added. Here, the visual pattern layer is preferably a pattern that infants and adult users like or a commercial logo of a merchant. Preferably, a urine display portion 162 that can convey to a caregiver or adult user that excrement has been discharged is also provided in the bottom film layer 163.

[0061] The body-facing liner and the garment-facing outer cover 160 are generally joined in facing relation to each other with the absorbent core 150 positioned therebetween. The body-facing liner and the garment-facing outer cover 160 may be joined to each other around the outer periphery of the diaper 100 by any means known to those skilled in the art, such as adhesive bonding, ultrasonic bonding, thermal bonding, and the like, and combinations thereof.

[0062] As mentioned above, absorbent core 150 is arranged between the liner layer facing the body side and the outer cover layer 160 facing the garment side. Absorbent core 150 is generally conformable and can absorb and retain liquid body discharges. Absorbent core 150 may include superabsorbent material, staple fibers, bonding fibers, etc. and combinations thereof, as known in the art. Absorbent core 150 may have any one of a variety of shapes and sizes. For example, composite absorbent core 150 may be rectangular, I-shaped or T-shaped. The size and absorptive capacity of absorbent core 150 should be compatible with the size of the intended wearer and the liquid load given by the intended application of diapers.

[0063] In one suitable embodiment, the diaper 100 may include a surge portion (not shown) disposed between the absorbent core 150 and the liner layer on the body-facing side. The surge portion is used to quickly collect and temporarily retain liquid discharged by the wearer and then release the liquid to the absorbent core 150. A variety of woven and nonwoven materials can be used to construct the surge portion. For example, the surge portion can be a spunbond or meltblown fiber web of a layer of polyolefin fibers. The surge portion can also be a bonded carded web of natural fibers and synthetic fibers. The surge portion can be a substantially hydrophobic material and can optionally be treated with a surfactant or otherwise to impart a desired degree of wettability and hydrophilicity.

[0064] As a preferred aspect, the diaper 100 includes a pair of elasticized longitudinally extending leg cuffs 151. The leg cuffs 151 are adapted to fit around the legs of the wearer when the infant is dressed and act as a physical barrier to the lateral flow of body exudates. In one suitable embodiment, the leg cuffs 151 may be formed by portions of the outer cover layer 160 and / or the body-facing liner layer extending beyond the longitudinal sides of the absorbent core 150. In another suitable embodiment, the leg cuffs 151 may be formed by a separate material (e.g., a strand of leg elastic components) joined to the outer cover layer 160 and / or the body-facing liner layer.

[0065] The diaper 100 may also include a front waist elastic component (not shown) and / or a back waist elastic band 124. In the illustrated embodiment, for example, the diaper 100 has a back waist elastic band 124 but does not have a front waist elastic component. The back waist elastic band 124 is arranged to pull the diaper 100 and hold the diaper 100 against the wearer (especially against the wearer's waist), as will be described more fully herein. As a preferred mode, the back waist elastic band 124 can be designed with an attachment area that is sealed with the back panel 120 and a non-attachment area that is not sealed with the back panel 120 and faces the crotch area 130, wherein the non-attachment area can be surrounded by the attachment area to form a back pocket that is open toward the crotch area 130. The back pocket is capable of carrying most of the body excreta that flow toward the diaper 100, such as but not limited to feces discharged by infants and young children.

[0066] Materials suitable for forming the leg cuffs 151 and / or the back waist elastic band 124 are known to those skilled in the art. Examples of such materials are strands or ribbons of polymeric, elastomeric materials that are adhered to the diaper 100 in a stretched position or attached to the diaper 100 when the diaper is folded so that elastic contraction forces are imparted to the diaper. The leg cuffs 151 and / or the back waist elastic band 124 can have any configuration that provides the desired properties. The leg cuffs 151 can be generally straight or optionally curved (e.g., Figure 1 and 2) to more closely fit the wearer's leg contour. As used herein, "elastic," "elastomeric," and the like refer to the ability of a material or composite to stretch at least about 50% and to recover to within at least 50% of its original length after relaxation.

[0067] The leg cuffs 151 and / or the back waist elastic band 124 can be attached to the diaper 100 in any manner known to those skilled in the art. For example, the leg cuffs 151 and / or the back waist elastic band 124 can be joined to the diaper 100 by ultrasonic bonding, thermal bonding, adhesive bonding, etc. and combinations thereof.

[0068] like Figure 1 As can be clearly seen, the back sheet 120 of the diaper generally includes a pair of ear stickers 122. In the prior art, the pair of ear stickers 122 are symmetrically arranged about the longitudinal center line L, and the transverse center line of the ear stickers 122 is substantially parallel to the transverse fold line T. The ear stickers 122 are substantially located at the rear waist side edges 123 on both sides of the back sheet 120 and close to the rear waist edge 121. In a suitable embodiment according to the prior art, and as Figure 1As shown, the ear patches 122 can be formed as separate components and attached to the body-facing liner layer, the outer cover layer 160, or both the body-facing liner layer and the outer cover layer, as is well known in the art. In the illustrated embodiment, the ear patches 122 are attached to the body-facing surface of the body-facing liner layer such that when the diaper 100 is worn, the attached portion of the ear patches 122 is disposed between the wearer's body and the body-facing liner.

[0069] In one suitable embodiment, each of the ear patches 122 includes a wrapping member 122A and an ear patch gripping portion 122B ( Figure 1 ). Each of the wrapping pieces 122A has a proximal edge, an opposite distal edge, an upper edge, and a lower edge. Figure 1 As seen in FIG. 1 , the proximal edge of each of the wrapping elements 122A is spaced inwardly from the corresponding rear waist side edge 123 of the diaper 100 so that a portion of the wrapping element overlaps the liner layer on the body-facing side. The portion of each of the wrapping elements 122A that overlaps the liner layer on the body-facing side is bonded (e.g., adhesively bonded, thermally bonded, or both thermally and adhesively bonded) to at least the body-side liner.

[0070] exist Figure 1 In the prior art shown, the proximal edge and the distal edge of each of the wrapping elements 122A are substantially parallel to each other, and both are straight (i.e., linear). Preferably, the length ratio of the distal edge to the proximal edge is suitably about 1:4. Further, the upper edge and the lower edge of each of the wrapping elements 122A are also configured to be substantially parallel to each other and in a straight line, and are generally parallel to the rear waist edge 121 of the rear panel 120.

[0071] Preferably, but not limiting, each wrapping piece 122A in the ear patch 122 can be designed as a non-elastic part, and then the ear patch gripping portion 122B is arranged to be connected to the wrapping piece 122A. In this way, the size and tightness of the waist opening of the diaper 100 in the wearing configuration can be adjusted according to the waist circumference of the wearer by, for example, the deformation of the rear waist elastic band 124. Figure 1 As shown, the wrapping member 122A as the non-elastic portion of the ear stickers 122 located on both sides of the back piece 120 extends laterally outward, and each ear sticker gripping portion 122B attached to the wrapping member 122A of the non-elastic portion is constructed to engage a loop portion set in the front waist region 161 of the diaper 100 in a wearing configuration, as will be more fully described herein.

[0072] like Figure 1As shown, according to the prior art, the ear patch 122 further includes an ear patch gripping portion 122B extending laterally outward from the wrapping member 122A, which is used to manually grip and manipulate the ear patch. Thus, the rear panel 120 (more specifically, the ear patch 122 of the rear panel) can be attached to the front panel 110 by folding the rear panel 120 (more specifically, the ear patch 122 of the rear panel) relative to the transverse folding line T to define a three-dimensional wearing configuration with a waist opening and a pair of leg openings when wearing the diaper 100, so as to selectively change the diaper 100 from the front panel 110 to the rear panel 110. Figure 1 The open configuration is shown moving to a closed or wear configuration.

[0073] Corresponding to the ear gripping portion 122B in the rear panel, the diaper 100 further includes a front waist fastening tape 161 formed as a separate component and attached to the outer surface of the outer cover layer 160 of the diaper, see Figure 1 . More specifically, a band (generally indicated at 161) including a fastening material designed as a loop or hook is attached to the front panel 110 of the diaper. The front waist fastening band 161 includes an upper edge, a lower edge, and a pair of side edges connecting the upper edge and the lower edge. The upper edge is spaced apart from the front waist edge 111 and the side edges are spaced apart from the corresponding side edges of the diaper 110. Thus, the ear patch gripping portion 122B provided on the non-elastic portion of the ear patch 122 and the corresponding front waist fastening band 161 are designed to be adapted to be refastenedly engaged with each other, thereby fixing the diaper 100 in a wearing configuration in a releasable manner.

[0074] The ear gripping portion 122B and the front waist fastening belt 161 that can form a refastenable fastening fit with each other can include any refastenable fasteners suitable for absorbent articles, such as adhesive fasteners, bonding fasteners, mechanical fasteners, etc. In a suitable embodiment, the ear gripping portion 122B and the front waist fastening belt 161 include mechanical fastening components, such as hook and loop fasteners. Figure 1 In the embodiment shown in FIG. 1 , the ear gripping portion 122B may include hook fasteners and the front waist fastening belt 161 may include complementary loop fasteners disposed on the outer surface of the outer cover layer 160. Further preferably, as Figure 1 As shown, auxiliary fasteners 164 are additionally provided on both sides of the front waist fastening belt 161 which are symmetrical with respect to the longitudinal center line L, wherein when the refastenable ear-stick gripping portion 122B and the front waist fastening belt 161 are fastened with each other, the auxiliary fasteners 164 are allowed to be fastened with the wrapping piece 122A designed with hooks or loops, so as to ensure that the diaper 100 has better fit and fastening properties.

[0075] Laminated ear pads

[0076] Next, combine Figure 2A , 2B3 to 5 are used to describe the laminated ear patch according to the present invention, wherein in particular Figure 4-5 As shown in the figure, the laminated ear patch 20 is suitable for being joined to both sides of the back sheet 120 of the snap-on diaper 100 to be fastened with the fasteners of the front sheet 110 of the diaper and converting the snap-on diaper in an open state into a closed or worn state of the snap-on diaper. As described in the background technology part of the present invention, the ear patches for known diapers, whether made of a single high basis weight material or a composite elastic ear patch including an outer layer, an elastomer layer and an inner layer in sequence, all have various unsatisfactory aspects, such as red marks caused by friction with the thigh skin, high manufacturing cost and production complexity, etc.

[0077] After long-term observation and thinking, the inventor of the present utility model found that the embossed laminated ear patch laminated by the hot air nonwoven fabric with predetermined physical properties and the nonwoven carrier sheet layer can achieve excellent and desirable softness and stretchability, which can be reflected in at least two important aspects:

[0078] 1. After lamination by hot air nonwoven fabric and nonwoven carrier sheet layer with predetermined physical properties (such as but not limited to desired basis weight and thickness), it can have satisfactory basis weight and softness on the basis of ensuring desirable tensile properties;

[0079] 2. By arranging multiple rows of parallel protrusion patterns on the top layer of the hot air non-woven fabric, a satisfactory surface morphology in the height direction can be formed. This 3D embossing design can effectively reduce the contact area between the top layer of the hot air non-woven fabric and the skin and reduce the friction area between the surface layer and the skin during use, thereby improving the softness and skin-friendliness of the laminated ear patch.

[0080] exist Figure 2A The first embodiment of the present invention is shown in FIG. 1 , wherein the laminated ear patch 20 includes a top layer 20A of hot air nonwoven fabric located above, wherein the top layer is made of bicomponent fibers of a parallel structure or a skin-core structure, for example. Figure 3As shown, the top layer 20A of the hot air nonwoven fabric includes a first embossed protrusion area P1 composed of a plurality of parallel rows of first, second and third protrusion patterns, such as but not limited to 21A, 21B, and 21C, wherein the spacing d2 of the first protrusion pattern 21A and the second protrusion pattern 21B belonging to two adjacent rows in the first embossed protrusion area is equal and the first protrusion pattern 21A and the third protrusion pattern 21C belonging to the same row are evenly distributed at equal intervals d1, wherein the height of these protrusion patterns 21A, 21B, and 21C is at least about 0.1 mm, wherein the thickness h1 of the top layer 20A of the hot air nonwoven fabric is 0.8 to 1.2 mm and its basis weight is 18-30 g / m2. The first, second and third protrusion patterns 21A, 21B, and 21C may be formed by embossing or forming perforations, as described below.

[0081] Further, the laminated ear patch 20 also includes a nonwoven carrier sheet layer 20B located below the hot air nonwoven top layer 20A, wherein the nonwoven carrier sheet layer 20B forms a laminated structure with the hot air nonwoven top layer 20A via thermal bonding or ultrasonic bonding, wherein the nonwoven carrier sheet layer 20B, for example, can preferably be composed of meltblown nonwoven fabric or spunbonded nonwoven fabric, wherein the nonwoven carrier sheet layer 20B can optionally be any sheet material that is wettable to body fluids and has a mechanical strength similar to or higher than that of the top layer 20A, and is preferably composed of high denier fibers to facilitate fluid transfer. Figure 2A As shown, the thickness or second height h2 of the nonwoven carrier sheet layer 20B is preferably 0.2 to 0.4 mm and its basis weight is 32-50 g / m 2 .

[0082] In this embodiment, the hot air nonwoven top layer 20A of the laminated ear patch 20 is laminated with the nonwoven carrier sheet layer 20B by means of heat bonding or ultrasonic bonding, for example, heat sealing bonding is used for the purpose of description.

[0083] First, the hot air nonwoven top layer 20A located at the top can be three-dimensionally shaped. Specifically, the hot air nonwoven top layer 20A can be meshed into the hot air nonwoven top layer 20A through the meshing parts of a pair of mutually meshing pressure rollers, so as to give the hot air nonwoven top layer 20A a concave-convex shape. The pair of mutually meshing pressure rollers include a first pressure roller whose outer circumference is recessed inward along the radial direction of the first pressure roller to form a plurality of recessed parts, and a second pressure roller having a plurality of protrusions on the outer circumference corresponding to the shapes of the plurality of recessed parts of the first pressure roller. In the recessed part of the first pressure roller, there is preferably a mechanism for adsorbing the hot air nonwoven top layer 20A meshed and pressed into the recessed part (for example, it can be by means of suction or exhausting air in the recessed part). While the hot air nonwoven top layer 20A is maintained on the outer circumferential surface of the first pressure roller, the second pressure roller with a plurality of protrusions corresponding thereto is inserted into the recessed part in which the hot air nonwoven top layer 20A is provided. Therefore, when the hot air nonwoven fabric top layer 20A is conveyed between the meshed first pressing roller and the second pressing roller, the multiple protrusions push the hot air nonwoven fabric top layer 20A into the corresponding recessed portions, so that the hot air nonwoven fabric top layer 20A at the corresponding positions of the multiple protrusions inserted into the recessed portions is also forcefully pushed into the recessed portions together with the multiple protrusions, thereby forming a protrusion on the hot air nonwoven fabric top layer 20A, that is, giving the hot air nonwoven fabric top layer 20A a three-dimensional shape.

[0084] Next, the three-dimensionally shaped hot air nonwoven top layer 20A is further heat-sealed and embossed together with the nonwoven carrier sheet layer 20B transported separately through a first pressing roller and a first smooth roller (preheated to a suitable temperature) that are in contact with the hot air nonwoven top layer 20A and the nonwoven carrier sheet layer 20B, and is heat-sealed and pressed together to form a laminated ear patch 20.

[0085] Best, in Figure 3 As shown in the figure, the concave-convex shape formed by three-dimensional shaping of the top layer 20A of the hot air nonwoven fabric includes a first, a second and a third protrusion pattern marked as 21A, 21B and 21C arranged in parallel in multiple columns, and the first embossed protrusion area P1 composed of these protrusion patterns is Figure 3In the figure, it is shown as a generally rectangular shape. In the first embossed protrusion area P1, the spacing d2 between the first protrusion pattern 21A and the second protrusion pattern 21B in the transverse direction is equal, and the length is, for example, 1-3 mm. In the longitudinal column, the spacing d1 between the first protrusion pattern 21A and the third protrusion pattern 21C is equal, and the length is, for example, 2-3 mm. The first, second and third protrusion patterns marked as 21A, 21B, and 21C are designed to be circular and have four or more bonding points evenly distributed on their circumferences, preferably eight or more bonding points, which can be achieved, for example, by means of a peripheral surface pattern design on the first pressing roller. After heat-sealing lamination is performed by means of the peripheral surface via multiple bonding points, multiple protrusions protruding outward are formed in the middle of these bonding points, and the height of these protrusions is at least 0.1 mm. It should be noted that, in the first embossed protrusion area P1, the vertical column composed of the first protrusion pattern 21A and the third protrusion pattern 21C and its adjacent vertical column are staggered in the longitudinal direction and the columns adjacent to each other are repeatedly arranged.

[0086] Therefore, the laminated material after processing by this process is formed by joining the hot air nonwoven top layer 20A and the nonwoven carrier sheet layer 20B below. The upper hot air nonwoven top layer 20A and the lower nonwoven carrier sheet layer 20B are locally joined at the multiple lamination points described above to form many joints, and the hot air nonwoven top layer 20A forms a plurality of protrusions protruding outward at the three-dimensional shaping portion, and the height of these protrusions is at least about 0.1 mm, thereby forming a 3D product, wherein the protrusions or patterns of the top layer 3D are visible from the plane of the carrier sheet and are obvious by touch and provide a "soft and fluffy" feeling.

[0087] Preferably, the sizes of the first, second and third protrusion patterns 21A, 21B, 21C are designed so that the optimal diameter width of a single protrusion pattern 21A, 21B, 21C is about 0.1 mm to about 3 mm, 0.5 mm to about 2.5 mm, about 0.9 mm to about 2.3 mm, and 1.2 mm to about 2.2 mm, so as to ensure that the 3D embossed pattern maintains sufficient structural reliability. When the diameter of the embossed pattern reaches more than 3 mm in any direction, the raised protrusions are prone to collapse.

[0088] More preferably, if Figure 3As shown, in order to better achieve heat-seal bonding between the hot air nonwoven top layer 20A and the underlying nonwoven carrier sheet layer 20B, the first embossed protrusion area P1 also includes a plurality of columns of second patterns P2 that are generally curved and defined by a plurality of bonding points, wherein the maximum spacing D1 between two adjacent columns of second patterns P2 is generally 2-3 times the diameter of the circular protrusion pattern 21A and the minimum spacing D2 is generally 0.4 to 0.6 times the diameter of the circular protrusion pattern. Specifically, the second pattern P2 is designed as a wavy line with crests and troughs that repeat in sequence, wherein these wavy lines are formed by a plurality of intermittently arranged bonding points and adjacent columns are arranged in a mirror-symmetrical manner. In the two adjacent columns of second patterns P2, at the same longitudinal height, the spacing formed by the crests of one column of pattern P2 and the crests of the adjacent column of pattern P2 is referred to as the maximum spacing D1 (e.g., Figure 3 As shown), in two adjacent columns of second patterns P2, the spacing formed by the troughs of one column of patterns P2 and the troughs of the adjacent column of patterns P2 at the same longitudinal height is called the minimum spacing D2 (as shown Figure 3 shown).

[0089] like Figure 3 As shown, the bonding points in the second pattern P2 are preferably designed as rectangles with a width w of approximately 0.8 mm and a length l of approximately 1.2 mm, and the spacing between two adjacent bonding points can be, for example, 1 to 1.2 mm. With the help of such a layout design of bonding points, it is believed that such a bonding point arrangement is conducive to improving the mechanical properties of the laminated ear patch without being limited by any theoretical constraints. It is also hoped to point out that in Figure 2A In the laminated ear patch shown, there is no elastomer contained in any known elastic laminated ear patch, such as but not limited to elastic film or elastic thread, between the hot air nonwoven top layer 20A and the nonwoven carrier sheet layer 20B.

[0090] exist Figure 2B Another embodiment of the utility model is shown in Figure 2A Compared with the embodiment in the embodiment, the main difference is that a second hot air nonwoven bottom layer 20C is added below the nonwoven carrier sheet layer 20B, wherein the fibers of the second hot air nonwoven bottom layer 20C can be the same as those of the first hot air nonwoven top layer 20A. Figure 2B As shown, the thickness or third height h3 of the second hot air nonwoven fabric bottom layer 20C is 0.8 to 1.2 mm, and its basis weight is 18-30 g / m2, and it forms a laminated structure with the nonwoven carrier sheet layer through heat sealing or ultrasonic bonding.

[0091] Likewise, in order to achieve a laminated ear patch with a 3D embossed structure on both sides to create a fluffy feel. Figure 3As shown in the figure, the concave-convex shape formed by three-dimensional shaping of the second hot air nonwoven fabric bottom layer 20C includes a first, a second and a third protrusion pattern marked as 21A, 21B, and 21C arranged in parallel in multiple columns, and the second embossed protrusion area composed of these protrusion patterns is Figure 3 exemplarily shown as a generally rectangular shape. The process of three-dimensional shaping of the second hot air nonwoven bottom layer 20C and heat sealing lamination between it and the nonwoven carrier sheet layer 20B can be the same as that of the hot air nonwoven top layer 20A. In the second embossed protrusion area, the spacing d2 between the first protrusion pattern 21A and the second protrusion pattern 21B in the transverse direction is equal, and both are, for example, 6-7 mm in length. In the longitudinal column, the spacing d1 between the first protrusion pattern 21A and the third protrusion pattern 21C is equal, and both are, for example, 8-10 mm in length. The first, second and third protrusion patterns marked as 21A, 21B, 21C are designed to be circular and have four or more bonding points evenly distributed on their circumferences, preferably eight or more bonding points here, which can be achieved, for example, by means of a peripheral pattern design on the first pressing roller. After lamination via multiple bonding points with the aid of the peripheral pattern, multiple protrusions protruding outward are formed in the middle of these bonding points, and the height of these protrusions is at least 0.1 mm. It should be noted that in the second embossed protrusion area, the vertical column composed of the first protrusion pattern 21A and the third protrusion pattern 21C is staggered in the horizontal direction with the adjacent vertical column, and the adjacent columns are repeatedly arranged. Subsequently, the hot air nonwoven top layer 20A, the nonwoven carrier sheet layer 20B and the second hot air nonwoven bottom layer 20C below are heat-sealed and bonded using the method described above. The hot air nonwoven top layer 20A, the nonwoven carrier sheet layer 20B and the second hot air nonwoven bottom layer 20C are locally joined at the multiple lamination points described above to form a number of joints, and the hot air nonwoven top layer 20A forms a plurality of protrusions protruding outward at the three-dimensional shaping portion, and the height of these protrusions is at least about 1 mm, thereby forming a 3D product, wherein the protrusions or patterns of the top layer 3D are visible from the plane of the carrier sheet and are obvious by touch and provide a "soft and fluffy" feeling. Further, such top layer 3D protrusions visible to the naked eye can significantly enhance the user's favorability and acceptance of the ear patch.

[0092] exist Figure 6 , a picture of the laminated ear patch according to the present invention is shown, in which the "soft and fluffy" feeling that the embossed laminated ear patch can provide can be intuitively seen.

[0093] Test Results

[0094] The laminate prepared above was cut in a known manner to obtain a laminated ear patch with embossing, and the softness and stretchability of the laminated ear patch with embossing were tested.

[0095] The softness test of the laminated ear patch can be carried out, for example, using the standard number GB / T8942-2016 entitled "Determination of Softness". Under specified conditions, the plate probe presses the sample into the slit to a certain depth (for example, about 8 mm), and the instrument records the sum of the bending resistance of the sample itself and the maximum vector of the friction force between the sample and the slit, which is called the softness of the sample. Generally speaking, the smaller the value indicated by the instrument, the softer the sample.

[0096] Generally, a sample with a size of 100 mm x 100 mm can be cut and placed in the center of the instrument test bench and made symmetrical to the slit as much as possible. Then, 10 valid data are generally measured in the transverse and longitudinal directions, and then the arithmetic mean of the values ​​of the transverse and longitudinal measurement results is taken. Here, the transverse softness of the laminated ear patch according to the utility model is 400,000 to 450,000 millinewtons (approximately about 42 gf) and the longitudinal softness is 400,000 to 430,000 millinewtons (approximately about 42 gf).

[0097] Furthermore, the determination of the tensile properties of the laminated ear patch can be carried out, for example, using the standard number GB / T 3923.1-2013 entitled "Determination of breaking strength and breaking elongation of tensile properties of fabrics (strip method)". Wherein, a specimen of a specified size is stretched at a constant elongation rate until it breaks, and its breaking strength and breaking elongation are recorded. Specifically, the specimen is clamped at the center position of the clamp to ensure that the center line of the tension passes through the midpoint of the clamp. Start the tester to move the movable clamp and stretch the specimen until it breaks. Record the elongation at break. Here, the laminated ear patch according to the utility model has an elongation at break of approximately 80 to 95%.

[0098] Diapers with laminated ears

[0099] like Figure 4 As shown in the figures, each shows a snap-on diaper 100 in an open state according to an embodiment of the present invention, wherein the embossed laminated ear patch 122 may specifically include a wrapping member 122A and an ear patch gripping portion 125 and an ear patch gripping portion 122B located therebetween. Figure 4It can be clearly seen that the pair of ear patches 122 are symmetrically arranged relative to the longitudinal center line L, and the wrapping pieces 122A of the ear patches are substantially parallel to the transverse folding line T. The wrapping pieces 122A of the ear patches 122 are substantially horizontally arranged at the rear waist side edges of both sides of the back sheet 120 and close to the rear waist edge 121, and are joined to both sides of the back sheet 120 as separate parts by sewing or gluing.

[0100] Specifically, the upper edge and the lower edge of each of the wrapping members 122A are still configured to be substantially parallel to each other and substantially parallel to the rear waist edge 121 of the back piece 120. In particular, each ear patch gripping portion 122B is configured to extend upwardly inclined toward the rear waist edge relative to the respective wrapping member 122A. More particularly, the upper and lower edges of the ear patch gripping portion 122B, especially the lower edge thereof, are configured to be upwardly inclined relative to the upper and lower edges of the wrapping member 122A. For ease of description, in this embodiment, a first transverse line T′ parallel to the transverse folding line T is configured, particularly at the lower edge 122B1 of the ear patch gripping portion 122B and the corner where the ear patch gripping portion 122B adjacent thereto is connected to the wrapping member 122A, and the lower edge 122B1 of the ear patch gripping portion and the ear patch gripping portion 122B form an upwardly inclined acute angle shown as α here, i.e., the ear patch edge angle, relative to the first transverse line T′.

[0101] Furthermore, the ear sticker gripping portion 122B (which also has an ear sticker edge angle α) disposed adjacent to the ear sticker gripping portion 125 can realize the buckling of the ear sticker gripping portion 122B and the front waist fastening belt located on the front panel 110. In particular, the ear sticker edge angle α is controlled within the range of 5° to 20°. According to the principle of ergonomics, since the hip angle of close-fitting pants is usually within the range of 12° to 15°, the ear sticker edge angle α is more preferably set within the range of 12° to 15° to adapt to the hip angle of close-fitting pants, so that the ear sticker gripping portion 122B is designed to have an ear sticker edge angle α to eliminate the gap formed between the hip point and the back waist concave point caused by the hip angle, thereby improving the fit and leakage-proof performance of the diaper.

[0102] As another possible implementation, Figure 5It can be clearly seen that in another alternative embodiment of the present invention, the wrapping piece 122A of the embossed laminated ear patch 122 is still arranged at the rear waist side edges on both sides of the back piece 120 and close to the rear waist edge 121, and is joined to both sides of the back piece 120 as a separate component by sewing or gluing. The proximal edge and distal edge of each of the wrapping pieces 122A are roughly parallel to each other, and both are configured as a straight line. Each ear patch gripping portion 122B extends laterally outward relative to its respective wrapping piece 122A, and the upper edge and lower edge of the ear patch gripping portion 122B are roughly parallel to each other, and roughly parallel to the upper edge and lower edge of the wrapping piece 122A.

[0103] For ease of description, in this embodiment, a second transverse line T″ parallel to the transverse folding line T is constructed at the intersection point where the lower edge of the wrapping piece 122A intersects with the proximal edge of the wrapping piece 122A. Since the pair of ear patches 122 are symmetrically arranged about the longitudinal center line L, the second transverse line T″ passes through the intersection point where the lower edge of the wrapping piece 122A of each ear patch 122 intersects with the proximal edge of the wrapping piece 122A. Figure 4 The same as the embodiment shown is that the pair of ear pads 122 are symmetrically arranged about the longitudinal center line L. Figure 4 In the embodiment shown, each ear patch 122 is arranged as a whole via its own wrapping piece 122A to be inclined toward the rear waist edge 121 of the rear panel 120, so that the lower edge of the wrapping piece 122A forms an ear patch angle β relative to the aforementioned second transverse line T″. Since the ear patch gripping portion 122B can also be partially or completely composed of an embossed laminate, the ear patch gripping portion 122B and the front waist fastening belt 161 can be fastened. In particular, the ear patch angle β is controlled to be 5°. Furthermore, according to the principle of ergonomics, since the hip angle of close-fitting pants is usually in the range of 12° to 15°, the ear patch angle β is more preferably set in the range of 12° to 15° to adapt to the hip angle of close-fitting pants. By designing the wrapping member 122A to form an ear patch angle β relative to the aforementioned second transverse line T″, the gap between the hip point and the back waist concave point caused by the hip angle can be eliminated, thereby improving the fit and leakage-proof performance of the diaper. Figure 4 The same as in the embodiment, Figure 5 The embodiments in the invention also allow the user to wear the garment in the usual manner, thereby obtaining an ideal wearing shape with less accidental wrinkles or bends and good fit, thereby achieving a higher leakage-proof effect.

[0104] Here, the embodiments of the present invention are exemplified and described, but those skilled in the art should know that the above and other various changes, omissions, and additions can be made without departing from the spirit and scope of the present invention. It should not be limited to the specific embodiments described here for understanding, which includes all possible embodiments that can be embodied within the scope and equivalent scope of the features recorded in the attached claims.

[0105] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to represent the recited value and a functionally equivalent range around that value. For example, a dimension disclosed as "40 mm" is intended to represent "about 40 mm".

[0106] All documents cited in the "Specific Implementation Methods" are incorporated herein by reference in relevant parts; the reference to any document shall not be interpreted as an admission that it is prior art with respect to the present utility model. In the event of any meaning or definition of a term in this written document conflicting with any meaning or definition of a term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall prevail.

[0107] Although specific embodiments of the present invention have been shown 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 to cover all such changes and modifications within the scope of the present invention in the appended claims.

[0108] When introducing elements of the present invention or its preferred embodiment(s), the articles "a", "an", "the" and "said" are intended to indicate the presence of one or more elements. The terms "comprise", "include" and "have" are intended to be inclusive and mean that in addition to the listed elements, additional elements may be present. Many modifications and variations may be made to the present invention without departing from the spirit and scope of the present invention. Therefore, the above embodiments should not be used to limit the scope of the present invention.

Claims

1. An embossed laminated ear patch, which is suitable for being attached to both sides of the back sheet of a snap-on diaper to snap with the fasteners of the front sheet of the diaper and converting the snap-on diaper in an open state into a closed or worn state of the snap-on diaper, characterized in that: The laminated ear patch comprises: A top layer of a through-air nonwoven fabric, wherein the top layer comprises a first embossed protrusion area consisting of a plurality of parallel rows of protrusion patterns, the protrusion patterns of two adjacent rows in the first embossed protrusion area are spaced equally, and the protrusion patterns in each row are spaced evenly, wherein the height of the protrusion patterns is at least about 0.1 mm, wherein the top layer of the through-air nonwoven fabric has a thickness of 0.8 to 1.2 mm and a basis weight of 18 to 30 g / m2 A nonwoven carrier sheet layer is located below the top layer of the hot air nonwoven fabric, wherein the nonwoven carrier sheet layer forms a laminate structure with the top layer of the hot air nonwoven fabric via thermal bonding or ultrasonic bonding, wherein the thickness of the nonwoven carrier sheet layer is 0.2 to 0.4 mm, and its basis weight is 32 to 50 g / m2.

2. The embossed laminated ear patch according to claim 1, characterized in that: It also includes a second hot air nonwoven fabric bottom layer located below the nonwoven carrier sheet layer, wherein the bottom layer includes a second embossed protrusion area composed of multiple columns of parallel arranged protrusion patterns, the spacing between two adjacent columns of protrusion patterns in the second embossed protrusion area is equal, and the protrusion patterns in each column are evenly spaced, wherein the height of these protrusion patterns is at least about 0.1 mm, wherein the thickness of the hot air nonwoven fabric bottom layer is 0.8 to 1.2 mm, and its basis weight is 18 to 30 g / m2, and it forms a laminated structure with the nonwoven carrier sheet layer via heat sealing or ultrasonic bonding.

3. The embossed laminated ear patch according to claim 1 or 2, characterized in that: The protrusion pattern in the first embossed protrusion area and / or the second embossed protrusion area is generally circular, which is defined by multiple bonding points distributed in a circular shape, wherein the diameter of the protrusion pattern is generally 0.1 mm to about 3 mm, and the spacing between the protrusion patterns in each column is generally 8 to 10 mm.

4. The embossed laminated ear patch according to claim 3, characterized in that: The first embossed protrusion area and / or the second embossed protrusion area also includes a plurality of columns of second patterns which are generally curved and defined by a plurality of bonding points, wherein the maximum spacing between two adjacent columns of second patterns is generally 2 to 3 times the diameter of the circular protrusion pattern, and the minimum spacing is generally 0.4 to 0.6 times the diameter of the circular protrusion pattern.

5. The embossed laminated ear patch according to claim 1 or 2, characterized in that: The nonwoven carrier sheet layer is generally composed of meltblown nonwoven fabric or spunbonded nonwoven fabric.

6. The embossed laminated ear patch according to claim 1 or 2, characterized in that: The embossed laminated ear patch does not have an elastomer between the top layer of the hot air nonwoven fabric and the nonwoven carrier sheet layer, and / or does not have an elastomer between the bottom layer of the hot air nonwoven fabric and the nonwoven carrier sheet layer.

7. The embossed laminated ear patch according to claim 1 or 2, characterized in that: The laminated ear patch having a laminated structure has a softness of 400,000 to 450,000 millinewtons and an elongation at break of 80 to 95%.

8. A snap-on diaper having a longitudinal centerline, a front panel, a rear panel and a crotch region, wherein the crotch region extends longitudinally between the front panel and the rear panel and connects the front panel and the rear panel, wherein the crotch region include: an absorbent assembly having a liner layer defining a body-facing side of an inner surface of the diaper, an outer cover layer defining a garment-facing side of an outer surface of the diaper, and an absorbent core disposed between the liner layer and the outer cover layer; a pair of ear stickers, wherein the pair of ear stickers are the ear stickers according to any one of claims 1 to 6, extending outward from the rear panel from opposite sides of the rear panel; as well as a fastening system comprising a first fastener located on each of the pair of ear stickers and a second fastener located on the front panel; The first fasteners in the pair of ear stickers are arranged as inclined parts to form a certain inclined angle relative to the rear waist edge of the back panel when the snap-fit ​​diaper is in the open state, wherein the inclined angle is set to allow the first fasteners in the pair of ear stickers to convert the snap-fit ​​diaper in the open state into the closed or worn state of the snap-fit ​​diaper, and the first fasteners and the second fasteners can be fastened to each other along the inclined angle, so that there is basically no gap between the back panel and the rear waist area when the snap-fit ​​diaper is in the worn state.

9. The snap-fit ​​diaper according to claim 8, wherein: The pair of ear stickers include a wrapping piece and an ear sticker gripping portion, wherein the wrapping piece of the ear sticker is generally horizontally arranged at the side edges of the rear waist on both sides of the back piece and close to the edge of the rear waist, and each ear sticker gripping portion is constructed to extend at a certain inclination angle relative to its own wrapping piece toward the edge of the rear waist.

10. The snap-fit ​​diaper according to claim 8, wherein: The pair of ear patches include a wrapping piece and an ear patch gripping portion, wherein each ear patch gripping portion extends laterally outward through its own wrapping piece, wherein the pair of ear patches are constructed to extend as a whole at an inclined angle toward the rear waist edge through its own wrapping piece.

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