Pants-type absorptive article

Abstract

The utility model discloses a shorts-type absorptive article, which is characterized in that a distance is arranged between two ends of an inner layer non-woven fabric of the shorts-type absorptive article along the length direction and two side edges of an outer layer non-woven fabric along the length direction, so that the number of material layers of a front waist part and a rear waist part of the shorts-type absorptive article is reduced; a wearer can be prevented from feeling stuffy and other uncomfortable feelings due to excessive material layers of the front waist part or the rear waist part, and meanwhile, the phenomenon that the side sealing parts are too high in strength due to excessive material layers of the front waist part and the rear waist part, and the edges of the two sides of the shorts-type absorptive article are too hard to damage the skin can be prevented. And the overall flexibility of the two sides of the product is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of sanitary products, in particular to the fields of baby pull-up pants, adult pull-up pants, women's sanitary pants, and specifically to a shorts-type absorbent article. Background Art

[0002] Walking pants are also called panty-type diapers, or pull-up pants, which are collectively referred to as shorts-type absorbent articles. Because panty-type diapers can be put on and taken off like ordinary underwear, the waist is elastic and comfortable to wear, and they are becoming more and more popular with consumers. Conventional pull-up pants products have a waist tension at the front waist or back waist at the waist opening that is greater than the tension at the abdomen or buttocks. Because there are multiple elastic bands arranged inside the waist, a large pressure is exerted on the waist when worn for a long time, causing discomfort to the wearer's waist, and it is easy to leave marks on the skin, reducing the experience. In response to this situation, the front and back waists of pull-up pants are designed to be soft, for example, the waist material is designed to be hollow or bubble-shaped to increase the fluffiness of the waist and make it softer in contact with the skin.

[0003] Currently, pull-up pants with bubble shape, such as the bubble waist product disclosed in Chinese patent CN218484760U, at least include an outer layer of non-woven fabric, an inner layer of non-woven fabric and a covering patch, wherein the covering patch includes a covering non-woven fabric and a plurality of elastic bands, the plurality of elastic bands are arranged on a surface of the covering non-woven fabric relative to the absorbent inner body, a surface of the covering non-woven fabric close to the elastic bands is bonded to the inner layer of non-woven fabric, and the outer layer of non-woven fabric wraps the covering non-woven fabric and the inner layer of non-woven fabric.

[0004] However, the bubble waistline product prepared by the above method includes three layers of material at the waistline, namely, an outer non-woven fabric, an inner non-woven fabric and a covering non-woven fabric. Therefore, the material layer at the waistline is thicker, especially in summer, the feeling of stuffiness is enhanced, and the air permeability is poor. In addition, the multi-layer material will cause the heat sealing strength on both sides of the pull-up pants product to increase relatively, resulting in harder edges on both sides of the product, which is not conducive to the overall softness of the product.

[0005] Therefore, it is necessary to propose solutions to the problems of the prior art. Utility Model Content

[0006] The present application provides a shorts-type absorbent article, which reduces the number of material layers at the front waist and rear waist of the shorts-type absorbent article by setting a spacing between the two ends of the inner non-woven fabric in the length direction and the two side edges of the outer non-woven fabric in the length direction, thereby preventing the wearer from feeling stuffy and other discomforts due to too many material layers at the front waist or rear waist. At the same time, it can also prevent the side sealing parts from being too strong due to too many material layers at the front waist and rear waist, and prevent the two side edges of the shorts-type absorbent article from being too hard and damaging the skin, thereby ensuring the overall softness of both sides of the product.

[0007] The present application provides a shorts-type absorbent article, which has a length direction, a width direction and a thickness direction that are orthogonal to each other, and has a front waist portion that is respectively arranged at the wearer's front waist, the abdomen of the wearer's ventral part, the buttocks of the wearer's rear hips, the rear waist of the wearer's back, and a crotch portion between the abdomen and the buttocks along the length direction, the shorts-type absorbent article comprises an outer body and an absorbent body connected to the skin side of the outer body; the outer body comprises an outer layer non-woven fabric, an inner layer non-woven fabric, an end non-woven fabric and an elastic component; the inner layer non-woven fabric is located between the absorbent body and the outer layer non-woven fabric, the inner layer non-woven fabric is at least partially connected to the end non-woven fabric along the length direction, wherein the end non-woven fabric is at least arranged at the front waist and the rear waist, and the inner layer non-woven fabric and the end non-woven fabric are connected in thickness. The upward orthographic projection is at least partially overlapping; the elastic component extends along the width direction and includes a first elastic component and a second elastic component; the first elastic component is located at the abdomen and the buttocks, and the second elastic component is located at the front waist and the back waist; wherein, the outer layer of non-woven fabric includes a cavity area and a joining area, the joining area includes a first joining area and a second joining area, and the cavity area is located at the front waist and the back waist; in the cavity area, the outer layer of non-woven fabric wraps the waist elastic body, and at least includes a cavity structure formed on the non-skin side of the waist elastic body, and the waist elastic body includes the end non-woven fabric and the second elastic component; wherein, there is a spacing between the two ends of the inner layer of non-woven fabric in the length direction and the two side edges of the outer layer of non-woven fabric in the length direction.

[0008] In some embodiments of the present application, the dimension of the cavity area along the length direction is no greater than 50 mm.

[0009] In some embodiments of the present application, the orthographic projection size of the cavity region in the thickness direction is greater than, equal to, or smaller than the size of the spacing.

[0010] In some embodiments of the present application, the outer nonwoven fabric is bent toward the skin side of the absorbent body to form a first bent portion, and the first bent portion covers the second elastic component.

[0011] In some embodiments of the present application, the end nonwoven fabric is bent toward the skin side of the absorbent body to form a second bending portion, and the second bending portion covers the second elastic component; the orthographic projections of the second bending portion and the first bending portion in the thickness direction overlap.

[0012] In some embodiments of the present application, the first elastic component is fixed between the end non-woven fabric and the outer non-woven fabric; the joining area is located at the abdomen and the buttocks; on the side away from the wearer's skin, the outer non-woven fabric is joined to the first elastic component and the end non-woven fabric in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the end non-woven fabric and the absorbent body in the second joining area; in the cavity area, the outer non-woven fabric wraps the waist elastic body and forms a cavity structure on the skin side of the waist elastic body, and is interconnected with the cavity structure formed on the non-skin side of the waist elastic body at least in the thickness direction, wherein the end non-woven fabric in the waist elastic body includes the second bending portion.

[0013] In some embodiments of the present application, the inner non-woven fabric extends to the front waist and the back waist at both ends along the length direction; on the side away from the wearer's skin, the outer non-woven fabric, the end non-woven fabric, the first elastic component and the inner non-woven fabric are joined to each other in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the inner non-woven fabric and the absorbent body in the second joining area; in the cavity area, the outer non-woven fabric wraps the waist elastic body and forms a cavity structure on the skin side of the waist elastic body, and is interconnected with the cavity structure formed on the non-skin side of the waist elastic body at least in the thickness direction, wherein the end non-woven fabric in the waist elastic body includes the second bending portion.

[0014] In some embodiments of the present application, the end non-woven fabric is also arranged on the abdomen and the buttocks, and is located between the inner non-woven fabric and the first bending portion, the non-skin side of the end non-woven fabric is joined to the absorbent body, and the second elastic component is fixed between the end non-woven fabric and the first bending portion; the joining area is located at the front waist, the abdomen, the back waist and the buttocks; on the side away from the wearer's skin, the outer non-woven fabric is joined to the first elastic component and the inner non-woven fabric in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the second elastic component and the end non-woven fabric in the second joining area.

[0015] In some embodiments of the present application, at the front waist portion and the back waist portion, the outer nonwoven fabric and the end nonwoven fabric are connected via joining portions formed at intervals in the width direction.

[0016] In some embodiments of the present application, the joint portion includes a plurality of joint portion columns in the width direction, each of the joint portion columns is formed continuously or discontinuously by the joint portion in the length direction; and the cavity structure is formed between any two connected joint portion columns.

[0017] In some embodiments of the present application, the first elastic component and the second elastic component are both spandex yarns, the stretching ratio of the first elastic component is smaller than the stretching ratio of the second elastic component; and the distance between any two adjacent second elastic components is smaller than the distance between any two adjacent first elastic components.

[0018] In some embodiments of the present application, the elastic component also includes a third elastic component, and the third elastic component is arranged between the inner layer of non-woven fabric and the outer layer of non-woven fabric; the third elastic component is extended along a curve from the abdomen to the crotch and along a curve from the buttocks to the crotch, or the third elastic component is arranged along a straight line in the crotch.

[0019] In some embodiments of the present application, the absorbent body includes a liquid permeable surface sheet, a liquid impermeable back sheet, an absorbent body and a leg barrier; along the thickness direction, the liquid permeable surface sheet is arranged on the skin side of the absorbent body; the liquid impermeable back sheet is arranged on the non-skin side of the absorbent body; the absorbent body is arranged between the liquid permeable surface sheet and the liquid impermeable back sheet; the leg barrier is arranged at intervals along the width direction and extends along the length direction.

[0020] The present application provides a shorts-type absorbent article, the outer body of which comprises an outer non-woven fabric, an inner non-woven fabric, an end non-woven fabric and an elastic component; the inner non-woven fabric is located between the absorbent body and the outer non-woven fabric; the inner non-woven fabric and the end non-woven fabric are partially fixed in the length direction; the end non-woven fabric is at least arranged at the front waist and the rear waist; the orthographic projections of the inner non-woven fabric and the end non-woven fabric in the thickness direction are at least partially overlapped; there is a spacing between the two ends of the inner non-woven fabric along the length direction and the two side edges of the outer non-woven fabric along the length direction; such a design can reduce the number of material layers at the front waist and the rear waist, prevent the wearer from feeling stuffy and other discomforts due to too many material layers at the front waist or the rear waist, and also prevent the side sealing part from being too strong due to too many material layers at the front waist and the rear waist, and make the two side edges of the shorts-type absorbent article too hard to damage the skin, thereby ensuring the overall softness of both sides of the product. In addition, the end nonwoven fabrics of the pants-type absorbent article are at least arranged at the front waist and the back waist. By giving functional characteristics to the end nonwoven fabric materials, the product style can be adjusted more flexibly to meet the diverse needs of customers and improve product quality. Furthermore, the outer nonwoven fabric has a joining area and a cavity area. The outer nonwoven fabric is fixedly connected to the corresponding components in the joining area, and in the cavity areas of the front waist and the back waist, the outer nonwoven fabric wraps the waist elastic body and forms a cavity structure at least on the non-skin side of the waist elastic body, so as to improve the softness of the front waist and the back waist of the pants-type absorbent article, the fit with human skin and the breathability, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 Schematic diagram of the pants-type absorbent articles in Embodiments 1 to 4 of the present application when worn.

[0023] Figure 2 It is a schematic plan view of the pants-type absorbent article in the unfolded and stretched state observed from the skin side surface in Examples 1 to 4 of the present application.

[0024] Figure 3 for Figure 2 The schematic diagram of the structure of the pants-type absorbent article in the first embodiment along the SS direction is shown.

[0025] Figure 4 for Figure 2The structure diagram of the pants-type absorbent article in the first embodiment along the TT direction is shown.

[0026] Figure 5 for Figure 4 The schematic diagram of the structure of the outer body located at the front waist and abdomen, or the rear waist and buttocks in the first embodiment is shown.

[0027] Figure 6 for Figure 2 The schematic diagram of the structure of the pants-type absorbent article in the second embodiment along the TT direction is shown.

[0028] Figure 7 for Figure 6 The schematic diagram of the structure of the outer body located at the front waist and abdomen, or the back waist and buttocks in the second embodiment is shown.

[0029] Figure 8 for Figure 2 The schematic diagram of the structure of the pants-type absorbent article in the third embodiment along the TT direction is shown.

[0030] Fig. 9 for Figure 8 The schematic diagram of the structure of the outer body located at the front waist and abdomen, or the rear waist and buttocks in the third embodiment is shown.

[0031] Fig.10 for Figure 2 The schematic diagram of the structure of the pants-type absorbent article in the fourth embodiment along the TT direction is shown.

[0032] Fig.11 for Fig.10 The schematic diagram of the structure of the outer body located at the front waist and abdomen, or the rear waist and buttocks in the fourth embodiment is shown.

[0033] Fig.12 This is a schematic plan view of a pants-type absorbent article in an unfolded and stretched state as viewed from the skin side surface in Example 5 of the present application.

[0034] Fig.13 for Fig.12 The schematic diagram of the structure of the pants-type absorbent article in the fifth embodiment along the TT direction is shown.

[0035] Fig.14 for Fig.13 The schematic diagram of the structure of the outer body located at the front waist and abdomen, or the rear waist and buttocks in the fifth embodiment is shown.

[0036] Fig.15 This is a schematic structural diagram of the front waist and abdomen of the pants-type absorbent article in Example 5 of the present application.

[0037] Fig.16This is a schematic diagram of the pants-type absorbent article in Example 5 of the present application when being worn. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0039] like Figure 1 and Figure 2 , the shorts-type absorbent article has mutually perpendicular length direction, width direction and thickness direction (wherein, the length direction refers to the direction of the shorts-type absorbent article in the unfolded state; in the thickness direction, the surface in contact with the human body is the skin side, and the side away from the human body skin side is the non-skin side, see the arrows of each direction shown in the attached figure for details), and has a front waist B1 arranged at the front waist of the wearer in the length direction, an abdomen B2 arranged at the ventral part of the wearer, a buttocks B4 arranged at the back buttocks of the wearer, a back waist B5 arranged at the back part of the wearer, and a crotch B3 arranged between the abdomen B2 and the buttocks B4. In the thickness direction, it has a skin side in contact with the wearer and a non-skin side away from the skin side of the wearer. In the length direction, it has a front body part F and a back body part B arranged oppositely, and the two side edges of the front body part F and the back body part B are respectively sealed to form a side sealing part 30, so that the shorts-type absorbent article forms a waist opening and two leg openings. The shorts-type absorbent article includes an outer body 20 and an absorbent body 10 connected to the skin side of the outer body 20. In the crotch portion B3, the outer body 20 forms arc-shaped leg circumference lines 20a on both sides of the absorbent body 10, so as to better fit the leg contour of the wearer.

[0040] like Figure 4 , Figure 6 , Figure 8 , Fig.10 and Fig.12As shown, in the first to fifth embodiments, the outer body 20 includes an outer nonwoven fabric 22, an inner nonwoven fabric 21, an end nonwoven fabric 23 and an elastic component. In the thickness direction, the inner nonwoven fabric 21 is arranged on the side close to the skin side, and the outer nonwoven fabric 22 is arranged on the side close to the non-skin side. The inner nonwoven fabric 21 is located between the absorbent body 10 and the outer nonwoven fabric 22. The inner nonwoven fabric 21 is at least partially connected to the end nonwoven fabric 23 along the length direction, wherein the end nonwoven fabric 23 is at least arranged at the front waist B1 and the back waist B5.

[0041] Further, the end nonwoven fabric 23 can be a combination of one or more nonwoven fabrics in a hot air nonwoven fabric containing PE or a spunbonded nonwoven fabric containing PE, a hydrophilic nonwoven fabric, a printed nonwoven fabric or a nonwoven fabric with an identification function. Specifically, when the end nonwoven fabric 23 uses a hot air nonwoven fabric containing PE or a spunbonded nonwoven fabric containing PE, since the adhesiveness of the hot air nonwoven fabric containing PE or the spunbonded nonwoven fabric containing PE is weak, the problem that the edges on both sides of the waistline of the pull-up pants product have a high heat sealing strength and a hard edge on both sides due to the large number of material layers is solved, thereby improving the softness of both sides of the product. When the end nonwoven fabric 23 uses a hydrophilic nonwoven fabric, the conductive function of the shorts-type absorbent article can be improved, which is conducive to the discharge of moisture from the waist. When the end nonwoven fabric 23 uses a nonwoven fabric with printing or an identification function, the aesthetics of the shorts-type absorbent article can be enhanced and the recognition of the product can be improved. Of course, the end nonwoven fabric 23 can also use the above-mentioned other nonwoven fabrics or their combinations, which are not given one by one here. In other words, by imparting functional properties to the material of the end non-woven fabric 23, the product style can be adjusted more flexibly to meet the diverse needs of customers and improve product quality.

[0042] The orthographic projections of the inner nonwoven fabric 21 and the end nonwoven fabric 23 in the thickness direction are at least partially overlapped. There is a spacing between the two ends 21a of the inner nonwoven fabric 21 in the length direction and the two side edges 22a of the outer nonwoven fabric 22 in the length direction. Such a design can reduce the number of material layers of the front waist B1 and the back waist B5, preventing the wearer from feeling stuffy and uncomfortable due to too many material layers of the front waist B1 or the back waist B5. At the same time, it can also prevent the side sealing part 30 from being too strong due to too many material layers of the front waist B1 and the back waist B5, and prevent the two side edges of the shorts-type absorbent article from being too hard and damaging the skin, thereby ensuring the overall softness of both sides of the product.

[0043] Further, the elastic components of the outer packaging body 20 are arranged along the width direction. The elastic components include a first elastic component 24 and a second elastic component 25. The first elastic component 24 is located at the abdomen B2 and the buttocks B4, and the second elastic component 25 is located at the front waist B1 and the back waist B5. The outer nonwoven fabric 22 is bent toward the skin side of the absorbent body 10 to form a first bent portion 221. The first bent portion 221 covers the second elastic component 25.

[0044] Furthermore, the first elastic component 24 and the second elastic component 25 are both spandex, and the stretching ratio of the first elastic component 24 is smaller than that of the second elastic component 25. The distance between any two adjacent second elastic components 25 is smaller than the distance between any two adjacent first elastic components 24.

[0045] In the embodiment of the present application, the outer nonwoven fabric 22 includes a cavity area J2 and a joining area, the joining area includes a first joining area J11 and a second joining area J12, and the cavity area J2 is located at the front waist B1 and the back waist B5. In the cavity area J2, the outer nonwoven fabric 22 wraps the waist elastic body and at least includes a cavity structure 40 formed on the non-skin side of the waist elastic body, wherein the waist elastic body includes an end nonwoven fabric 23 located at the front waist B1 and the back waist B5 and a second elastic component 25.

[0046] Furthermore, in some embodiments of the present application, the dimension of the cavity area J2 along the length direction is not greater than 50 mm, which can ensure the softness and breathability of the front waist B1 and the back waist B5 of the shorts-type absorbent article located at the waist opening and its vicinity, thereby reducing the pressure of the second elastic component 25 on the wearer's skin.

[0047] In some embodiments of the present application, the orthographic projection size of the cavity region J2 in the thickness direction is a size greater than the spacing. In other embodiments of the present application, the orthographic projection size of the cavity region J2 in the thickness direction is a size less than the spacing. In still other embodiments of the present application, the orthographic projection size of the cavity region J2 in the thickness direction is a size equal to the spacing.

[0048] like Figure 3 As shown, the absorbent body 10 is a main structure for absorbing excrement. The absorbent body 10 is arranged along the length direction, extending from the abdomen B2 through the crotch B3 to the buttocks B4. The absorbent body 10 includes a liquid-permeable surface sheet 11, a liquid-impermeable back sheet 12, an absorbent body 13 and a leg barrier 14.

[0049] The liquid-permeable top sheet 11 is disposed on the skin-side surface of the absorbent body 10 in the thickness direction. The liquid-impermeable back sheet 12 is disposed on the non-skin-side surface of the absorbent body 10 .

[0050] The absorbent body 13 is disposed between the liquid-permeable surface sheet 11 and the liquid-impermeable back sheet 12. The absorbent body 13 contains a liquid-absorbing material for absorbing excrement. The cross-sectional shape of the absorbent body is rectangular, dumbbell-shaped, or other shapes. In the first to fifth embodiments, the cross-sectional shape of the absorbent body is rectangular. The excrement of the wearer passes through the liquid-permeable surface sheet 11 and is absorbed by the absorbent body 13.

[0051] The leg blocking parts 14 are arranged at intervals along the width direction and extend along the length direction. The leg blocking parts 14 include two side sheets 141 and a fourth elastic component 142. The fourth elastic component 142 is made of spandex yarn, and of course it can also be made of natural rubber strips (yarns) or other elastic materials. The fourth elastic component 142 extends along the length direction, and the two side sheets 141 are located at the two side edges of the absorbent body 10 along the width direction. The two side sheets 141 wrap and fix the fourth elastic component 142, such as Figure 3 When the pants-type absorbent article is worn, the leg blocking portion 14 stands up around the legs of the wearer under the action of the fourth elastic member 142. The leg blocking portion 14 is designed to block urine or soft feces flowing along the width direction on the absorbent body 13 to prevent side leakage.

[0052] The absorbent body 10 structure of the shorts-type absorbent articles in Examples 1 to 5 of the present application is basically the same, but the structures of their respective outer bodies 20 are different, which will be described in detail below in conjunction with the accompanying drawings. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. In addition, with regard to the accompanying drawings, in order to explain more clearly, compared with the actual situation, the width, thickness, shape, etc. of each component are sometimes schematically shown, but this is only an example and is not a limitation on the interpretation of the present application. Moreover, each of the accompanying drawings schematically shows an implementation method, so the size, spacing or positional relationship of each component is exaggerated or part of the component is omitted.

[0053] Embodiment 1

[0054] like Figure 4 As shown, the outer body 20 includes an outer nonwoven fabric 22, an inner nonwoven fabric 21 and an end nonwoven fabric 23. In the thickness direction, the inner nonwoven fabric 21 is arranged on the side close to the skin side, and the outer nonwoven fabric 22 is arranged on the side close to the non-skin side. In the length direction, the outer nonwoven fabric 22 is arranged to extend from the front waist B1 and the abdomen B2 through the crotch B3 to the buttocks B4 and the back waist B5.

[0055] The two ends of the outer nonwoven fabric 22 along the length direction are bent toward the skin side of the absorbent body 10 to form a first bent portion 221. The inner nonwoven fabric 21 is fixed between the absorbent body 10 and the end nonwoven fabric 23. The end nonwoven fabric 23 is fixed between the inner nonwoven fabric 21 and the outer nonwoven fabric 22, and the end nonwoven fabric 23 is located at the front waist B1 and the abdomen B2 and the buttocks B4 and the back waist B5. Further, the two ends of the end nonwoven fabric 23 along the length direction are bent toward the skin side of the absorbent body 10 to form a second bent portion 231, wherein the orthographic projections of the first bent portion 221 and the second bent portion 231 in the thickness direction are overlapped.

[0056] like Figure 4 and Figure 5 As shown, the inner nonwoven fabric 21 is at least partially bonded and fixed to the end nonwoven fabric 23 along the length direction. The orthographic projections of the inner nonwoven fabric 21 and the end nonwoven fabric 23 along the thickness direction are at least partially overlapped. There is a spacing between the front and rear ends 21a of the inner nonwoven fabric 21 along the length direction and the side edges 22a of the outer nonwoven fabric 22 along the length direction. In other words, the front and rear ends 21a of the inner nonwoven fabric 21 along the length direction do not extend to the front waist B1 and the back waist B5. Such a design can reduce the number of material layers of the front waist B1 and the back waist B5, prevent the wearer from feeling stuffy and uncomfortable due to too many material layers of the front waist B1 or the back waist B5, and also prevent the side sealing part 30 from being too strong due to too many material layers of the front waist B1 and the back waist B5, and make the side edges of the shorts-type absorbent article too hard to damage the skin, thereby ensuring the overall softness of both sides of the product.

[0057] Further, the end nonwoven fabric 23 can be a combination of one or more nonwoven fabrics in a hot air nonwoven fabric containing PE or a spunbonded nonwoven fabric containing PE, a hydrophilic nonwoven fabric, a printed nonwoven fabric or a nonwoven fabric with an identification function. Specifically, when the end nonwoven fabric 23 uses a hot air nonwoven fabric containing PE or a spunbonded nonwoven fabric containing PE, since the adhesiveness of the hot air nonwoven fabric containing PE or the spunbonded nonwoven fabric containing PE is weak, the problem that the edges on both sides of the waist of the pull-up pants product have a high heat sealing strength and a hard edge on both sides due to the large number of material layers is solved, thereby improving the softness of both sides of the product. When the end nonwoven fabric 23 uses a hydrophilic nonwoven fabric, the conductive function of the shorts-type absorbent article can be improved, which is conducive to the discharge of moisture from the waist. When the end nonwoven fabric 23 uses a nonwoven fabric with printing or an identification function, the aesthetics of the shorts-type absorbent article can be enhanced and the recognition of the product can be improved. In this way, by giving functional characteristics to the material of the end nonwoven fabric 23, the product style can be adjusted more flexibly to meet the diverse needs of customers and improve product quality.

[0058] like Figure 3 and Figure 4 As shown, the outer body 20 also includes an elastic component extending in the width direction. The elastic component includes a first elastic component 24 and a second elastic component 25. The first elastic component 24 is provided at the abdomen B2 and the buttocks B4, and is fixed between the end non-woven fabric 23 and the outer non-woven fabric 22. The second elastic component 25 is provided at the front waist B1 and the back waist B5. The second bending portion 231 covers the second elastic component 25.

[0059] In the first embodiment, the outer nonwoven fabric 22 includes a cavity area J2 and a joining area, the joining area includes a first joining area J11 and a second joining area J12, and the cavity area J2 is located at the front waist B1 and the back waist B5. In the cavity area J2, the outer nonwoven fabric 22 wraps the waist elastic body and forms a cavity structure 40 on at least one non-skin side of the waist elastic body, wherein the waist elastic body includes an end nonwoven fabric 23 (including a second bending portion 231) located at the front waist B1 and the back waist B5 and a second elastic component 25, and the waist elastic body has a certain elastic expansion and contraction.

[0060] Furthermore, the bonding area can be bonded by any one or two of a hot melt adhesive process, a hot pressing process, and an ultrasonic process. In the first embodiment, a hot melt adhesive process is used for bonding. In the bonding area (including the first bonding area J11 and the second bonding area J12), the outer non-woven fabric 22 is bonded to the corresponding component, while in the cavity area J2, the outer non-woven fabric 22 is not bonded to the corresponding component.

[0061] Specifically, in the first embodiment, the joining area (including the first joining area J11 and the second joining area J12) is located at the abdomen B2 and the buttocks B4, and the cavity area J2 is located at the front waist B1 and the back waist B5. On the side away from the wearer's skin, the outer non-woven fabric 22 and the corresponding parts (including the first elastic part 24 and the end non-woven fabric 23) are joined to each other in the first joining area J11. On the side close to the wearer's skin, the first bending portion 221 of the outer non-woven fabric 22 and the corresponding parts (including the end non-woven fabric 23 and the absorbent body 10) are joined to each other in the second joining area J12. In the cavity area J2, the outer non-woven fabric 22 wraps the waist elastic body and forms a cavity structure 40 on the skin side of the waist elastic body, and is connected to the cavity structure 40 formed on the non-skin side of the waist elastic body at least in the thickness direction. In the first embodiment, the cavity structure 40 formed on the skin side of the waist elastic body is connected to the cavity structure 40 formed on the non-skin side of the waist elastic body in the thickness direction and the width direction (not shown in the figure). In the first embodiment, the size of the cavity area J2 along the length direction is not greater than 50 mm. Further, in the first embodiment, the orthographic projection size of the cavity area J2 in the thickness direction is smaller than the size of the spacing.

[0062] The outer nonwoven fabric 22 (including the first bending portion 221) located in the cavity area J2 and the waist elastic body can slide relative to each other because they are not joined, so that the cavity structure 40 has a certain space. Under the expansion and contraction of the waist elastic body, the cavity structure 40 has a "bubble" structure. In the first embodiment, the cross-sectional shape of the cavity structure 40 is an "n" shape. By forming the cavity structure 40, the softness of the front waist B1 and the back waist B5, the fit to human skin and the breathability can be improved, and the product quality can be improved.

[0063] In addition, the elastic component further includes a third elastic component 26, such as Figure 2 and Figure 4 As shown, the third elastic component 26 is a spandex yarn, and of course it can also be made of natural rubber strips (filaments) or other elastic materials. The third elastic component 26 is fixed between the inner non-woven fabric 21 and the outer non-woven fabric 22 by adopting a hot melt adhesive process. Further, the third elastic component 26 is fixed between the end non-woven fabric 23 and the outer non-woven fabric 22 by adopting a hot melt adhesive process. The third elastic component 26 is extended along the curve from the abdomen B2 to the crotch B3 and along the curve from the buttocks B4 to the crotch B3, wherein these curves match the leg circumference line 20a. In other partial embodiments, the third elastic component 26 can also be arranged along a straight line in the crotch.

[0064] Embodiment 2

[0065] See also Figure 6 and Figure 7 , and combined with Figures 1 to 5 As shown, the structure of the shorts-type absorbent article of the second embodiment is different from that of the first embodiment in that the end nonwoven fabric 23 is located at the front waist B1 and the back waist B5, which is different from the end nonwoven fabric 23 located at the front waist B1 and the abdomen B2 and the buttocks B4 and the back waist B5 in the first embodiment. The two ends 21a of the inner nonwoven fabric 21 along the length direction extend to the front waist B1 and the back waist B5, and there is a spacing between the two ends 21a of the inner nonwoven fabric 21 along the length direction and the two side edges 22a of the outer nonwoven fabric 22 along the length direction, and the size of the spacing is different from the spacing size in the first embodiment. In the thickness direction, the inner nonwoven fabric 21 and the end nonwoven fabric 23 have an overlapping portion. The outer nonwoven fabric 22 has a bonding area (including a first bonding area J11 and a second bonding area J12) and a cavity area J2. On the side away from the wearer's skin, the outer nonwoven fabric 22 is joined to the first elastic component 24 and the inner nonwoven fabric 21 at the first joining area J11. On the side close to the wearer's skin, the first bending portion 221 of the outer nonwoven fabric 22 is joined to the corresponding components (including the inner nonwoven fabric 21 and the absorbent body 10).

[0066] In the second embodiment, the third elastic component 26 is fixed between the inner non-woven fabric 21 and the outer non-woven fabric 22 by using a hot melt adhesive process, for example. The third elastic component 26 is extended along the curve from the abdomen B2 to the crotch B3 and along the curve from the buttocks B4 to the crotch B3, wherein these curves match the leg circumference line 20a.

[0067] Embodiment 3

[0068] See also Figure 8 and Fig. 9 , and combined with Figures 1 to 3 and Figure 6 and Figure 7 As shown, the structure of the shorts-type absorbent article of the third embodiment is different from that of the second embodiment in that: in the third embodiment, the end non-woven fabric 23 is arranged at the front waist B1, the back waist B5, the abdomen B2 and the buttocks B4, which is different from the end non-woven fabric 23 of the second embodiment being arranged at the front waist and the back waist B5. Further, in the third embodiment, the end non-woven fabric 23 is arranged between the inner non-woven fabric 21 and the first bending portion 221, and the non-skin side (i.e., the side away from the wearer's skin) of the end non-woven fabric 23 is joined to the absorbent body 10. The second elastic component 25 is fixedly connected between the end non-woven fabric 23 and the first bending portion 221.

[0069] The outer nonwoven fabric 22 has a bonding area (including a first bonding area J11 and a second bonding area J12) and a cavity area J2. In the third embodiment, the bonding areas are located at the front waist B1, the abdomen B2, the buttocks B4 and the back waist B5. The cavity area J2 is located at the front waist B1 and the back waist B5. On the side away from the wearer's skin, the outer nonwoven fabric 22 is bonded to the first elastic component 24 and the inner nonwoven fabric 21 in the first bonding area J11. On the side close to the wearer's skin, the first bending portion 221 of the outer nonwoven fabric 22 is bonded to the second elastic component 25 and the end nonwoven fabric 23 in the second bonding area J12.

[0070] In the third embodiment, in the cavity area J2, the outer layer of non-woven fabric 22 wraps the waist elastic body, and a cavity structure 40 is formed on the non-skin side of the waist elastic body, wherein the waist elastic body is the end non-woven fabric 23 and the second elastic component 25 located at the front waist B1 and the back waist B5.

[0071] The outer nonwoven fabric 22 (including the first bending portion 221) in the cavity area J2 and the waist elastic body can slide relative to each other because they are not joined, so that the cavity structure 40 has a certain space. Under the expansion and contraction of the waist elastic body, the cavity structure 40 has a "bubble" structure. By forming the cavity structure 40, the softness of the front waist B1 and the back waist B5, the fit to human skin and the breathability can be improved, and the product quality can be improved.

[0072] In addition, the elastic component further includes a third elastic component 26, such as Fig. 9 As shown, the third elastic component 26 is a spandex yarn, and can also be made of natural rubber strips (filaments) or other elastic materials. The third elastic component 26 is fixed between the inner non-woven fabric 21 and the outer non-woven fabric 22 by using a hot melt adhesive process. Further, the third elastic component 26 is extended along the curve from the abdomen B2 to the crotch B3 and along the curve from the buttocks B4 to the crotch B3, wherein these curves match the leg circumference line 20a.

[0073] Embodiment 4

[0074] See also Fig.10 and Fig.11 , and join Figures 1 to 3 and Figure 8 and Fig. 9 As shown, the structure of the pants-type absorbent article of the fourth embodiment is an improvement made on the basis of the structure of the pants-type absorbent article of the third embodiment.

[0075] In the fourth embodiment, Fig.10 As shown, the end nonwoven fabric 23 is bent toward the skin side of the absorbent body 10 to form a second bent portion 231 , wherein the second bent portion 231 covers the second elastic component 25 .

[0076] In the fourth embodiment, the outer nonwoven fabric 22 includes a cavity area J2 and a joining area, the joining area includes a first joining area J11 and a second joining area J12, the joining area is located at the abdomen B2 and the buttocks B4, and the cavity area J2 is located at the front waist B1 and the back waist B5. On the side away from the wearer's skin side, the outer nonwoven fabric 22 and the corresponding components (including the first elastic component 24 and the inner nonwoven fabric 21) are mutually joined in the first joining area J11. On the side close to the wearer's skin side, the first bending portion 221 of the outer nonwoven fabric 22 and the corresponding components (including the end nonwoven fabric 23) are mutually joined in the second joining area J12. In the cavity area J2, the outer nonwoven fabric 22 wraps the waist elastic body, and forms a cavity structure 40 on the skin side of the waist elastic body, and is at least connected to the cavity structure 40 formed on the non-skin side of the waist elastic body in the thickness direction, wherein the waist elastic body includes the end nonwoven fabric 23 (including the second bending portion 231) and the second elastic component 25. In the fourth embodiment, the cavity structure 40 formed on the skin side of the waist elastic body is connected to the cavity structure 40 formed on the non-skin side of the waist elastic body in the thickness direction and the width direction (not shown in the figure). Further, in the fourth embodiment, the size of the cavity area along the length direction is not greater than 50 mm. Further, in the fourth embodiment, the orthographic projection size of the cavity area J2 in the thickness direction is equal to the size of the spacing.

[0077] The outer nonwoven fabric 22 (including the first bending portion 221) located in the cavity area J2 and the waist elastic body can slide relative to each other because they are not joined, so that the cavity structure 40 has a certain space. Under the expansion and contraction of the waist elastic body, the cavity structure 40 has a structure similar to a "bubble". In the fourth embodiment, the cross-sectional shape of the cavity structure 40 is an "n" shape. By forming the cavity structure 40, the softness of the front waist B1 and the back waist B5, the fit to human skin and the breathability can be improved, and the product quality can be improved.

[0078] Embodiment 5

[0079] like Figures 12 to 16 As shown, in the fifth embodiment, taking the front waist B1 as an example, the outer nonwoven fabric 22 and the end nonwoven fabric 23 are joined by the joining portion 31 formed at intervals in the width direction. Of course, in other embodiments, at the back waist B5, the outer nonwoven fabric 22 and the end nonwoven fabric 23 are joined by the joining portion 31 formed at intervals in the width direction.

[0080] The joint portion 31 can be formed by using any one of a hot melt adhesive process, a hot pressing process, and an ultrasonic process, or a combination of two processes. In the fifth embodiment, the joint portion 31 is formed by using an ultrasonic process.

[0081] Furthermore, the joint portion 31 includes a plurality of joint portion rows R1 in the width direction, and each joint portion row R1 is formed by the joint portion 31 continuously or discontinuously in the length direction.

[0082] like Fig.13 and Fig.14 As shown, in the fifth embodiment, the outer nonwoven fabric 22 includes a cavity area J2 and a bonding area, and the bonding area includes a first bonding area J11 and a second bonding area J12. The cavity area J2 is located at the front waist B1 and the back waist B5. On the side away from the wearer's skin, the outer nonwoven fabric 22 and the corresponding components (including the first elastic component 24 and the end nonwoven fabric 23) are bonded to each other in the first bonding area J11. The first bonding area J11 is formed by any one of a hot melt adhesive process, a hot pressing process, and an ultrasonic process, or a composite of two processes. In the fifth embodiment, the first bonding area J11 is formed by using an ultrasonic process, such as Fig.13 shown. Fig.13 for Fig.12The cross-sectional schematic diagram of the pants-type absorbent article along the TT direction is mainly used to schematically show the positional relationship of each layer of the pants-type absorbent article. On the side close to the wearer's skin, the first bending portion 221 of the outer nonwoven fabric 22 and the corresponding components (including the end nonwoven fabric 23 and the absorbent body 10) are joined to each other in the second joining area J12, and the second joining area J12 is formed by using a hot melt adhesive process.

[0083] like Fig.14 In the cavity region J2, the outer nonwoven fabric 22 wraps the waist elastic body and at least includes a cavity structure 40' formed on the non-skin side of the waist elastic body, and the cavity structure 40' is located between any two adjacent rows of junction columns R1. In the fifth embodiment, the outer nonwoven fabric 22 wraps the waist elastic body and forms a cavity structure 40' on the skin side of the waist elastic body, and is interconnected with the cavity structure 40' formed on the non-skin side of the waist elastic body in the thickness direction. In this case, since the outer nonwoven fabric 22 and the end nonwoven fabric 23 are joined by the junction 31 formed at intervals in the width direction, the outer nonwoven fabric 22 in the cavity region J2 and the waist elastic body will not slide relative to each other in the width direction.

[0084] like Fig.12 and Fig.15 As shown, along the width direction, there are multiple cavity structures 40' located at the front waist B1 and the back waist B5. The internal space of the cavity structure 40' is small and is regularly arranged along the length direction, such as Figures 12 to 16 As shown, such an arrangement not only enhances the softness of the pants-type absorbent article (especially the waist area), but also can significantly improve the aesthetic effect of the pants-type absorbent article.

[0085] The above is a detailed introduction to the shorts-type absorbent article provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for a person skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A pants-type absorbent article having mutually orthogonal length direction, width direction and thickness direction, and having a front waist portion arranged along the length direction at the front waist portion of the wearer, the abdomen portion of the wearer's ventral portion, the buttocks portion of the wearer's rear hip portion, the rear waist portion of the wearer's back portion, and a crotch portion between the abdomen and the buttocks, the pants-type absorbent article comprising an outer body and an absorbent main body connected to a skin-side surface of the outer body, characterized in that: The outer body comprises an outer nonwoven fabric, an inner nonwoven fabric, an end nonwoven fabric and an elastic component; the inner nonwoven fabric is located between the absorbent body and the outer nonwoven fabric, and the inner nonwoven fabric is at least partially connected to the end nonwoven fabric along the length direction, wherein the end nonwoven fabric is at least arranged at the front waist and the back waist, and the orthographic projections of the inner nonwoven fabric and the end nonwoven fabric in the thickness direction are at least partially overlapped; the elastic component is extended along the width direction and comprises a first elastic component and a second elastic component; the first elastic component is located at the abdomen and the buttocks, and the second elastic component is located at the front waist and the back waist; wherein the outer nonwoven fabric comprises a cavity area and a joining area, the joining area comprises a first joining area and a second joining area, and the cavity area is located at the front waist and the back waist; in the cavity area, the outer nonwoven fabric wraps the waist elastic body, and at least comprises a cavity structure formed on the non-skin side of the waist elastic body, and the waist elastic body comprises the end nonwoven fabric and the second elastic component; There is a distance between the two ends of the inner non-woven fabric along the length direction and the two side edges of the outer non-woven fabric along the length direction.

2. The pants-type absorbent article according to claim 1, wherein The dimension of the cavity area along the length direction is no greater than 50 mm.

3. The pants-type absorbent article according to claim 1 or 2, wherein: The orthographic projection size of the cavity region in the thickness direction is greater than, equal to, or smaller than the size of the spacing.

4. The pants-type absorbent article according to claim 3, wherein: The outer nonwoven fabric is folded toward the skin side of the absorbent body to form a first folded portion, and the first folded portion covers the second elastic member.

5. The pants-type absorbent article according to claim 4, wherein: The end nonwoven fabric is bent toward the skin side of the absorbent body to form a second bent portion, and the second bent portion covers the second elastic component; the orthographic projections of the second bent portion and the first bent portion in the thickness direction overlap.

6. The pants-type absorbent article according to claim 5, wherein: The first elastic component is fixed between the end non-woven fabric and the outer non-woven fabric; the joining area is located at the abdomen and the buttocks; on the side away from the wearer's skin, the outer non-woven fabric is joined to the first elastic component and the end non-woven fabric in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the end non-woven fabric and the absorbent body in the second joining area; in the cavity area, the outer non-woven fabric wraps the waist elastic body and forms a cavity structure on the skin side of the waist elastic body, and is interconnected with the cavity structure formed on the non-skin side of the waist elastic body at least in the thickness direction, wherein the end non-woven fabric in the waist elastic body includes the second bending portion.

7. The pants-type absorbent article according to claim 5, wherein: The inner nonwoven fabric extends to the front waist and the back waist at both ends along the length direction; On the side away from the wearer's skin, the outer non-woven fabric, the end non-woven fabric, the first elastic component and the inner non-woven fabric are joined to each other in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the inner non-woven fabric and the absorbent body in the second joining area; in the cavity area, the outer non-woven fabric wraps the waist elastic body and forms a cavity structure on the skin side of the waist elastic body, and is interconnected with the cavity structure formed on the non-skin side of the waist elastic body at least in the thickness direction, wherein the end non-woven fabric in the waist elastic body includes the second bending portion.

8. The pants-type absorbent article according to claim 4, wherein: The end nonwoven fabric is also arranged at the abdomen and the buttocks, and is located between the inner nonwoven fabric and the first bent portion, the non-skin side of the end nonwoven fabric is joined to the absorbent body, and the second elastic component is fixed between the end nonwoven fabric and the first bent portion; the joining area is located at the front waist, the abdomen, the back waist and the buttocks; On the side away from the wearer's skin, the outer non-woven fabric is joined to the first elastic component and the inner non-woven fabric in the first joining area; on the side close to the wearer's skin, the first bending portion of the outer non-woven fabric is joined to the second elastic component and the end non-woven fabric in the second joining area.

9. The pants-type absorbent article according to claim 1, wherein: The outer layer nonwoven fabric and the end portion nonwoven fabric are connected to each other at the front waist portion and the rear waist portion via a joining portion formed at intervals in the width direction.

10. The pants-type absorbent article according to claim 9, wherein: The joint part includes a plurality of joint part rows in the width direction, each of the joint part rows is formed by the joint part continuously or discontinuously in the length direction; and the cavity structure is formed between any two connected joint part rows.

11. The pants-type absorbent article according to claim 1, wherein The first elastic component and the second elastic component are both spandex yarns, the stretching ratio of the first elastic component is smaller than the stretching ratio of the second elastic component; and the distance between any two adjacent second elastic components is smaller than the distance between any two adjacent first elastic components.

12. The pants-type absorbent article according to claim 1, wherein The elastic component also includes a third elastic component, which is arranged between the inner non-woven fabric and the outer non-woven fabric; the third elastic component is extended along a curve from the abdomen to the crotch and along a curve from the buttocks to the crotch, or the third elastic component is arranged along a straight line in the crotch.

13. The pants-type absorbent article according to claim 1, wherein The absorbent body comprises a liquid permeable surface sheet, a liquid impermeable back sheet, an absorbent body and a leg barrier; along the thickness direction, the liquid permeable surface sheet is arranged on the skin side of the absorbent body; the liquid impermeable back sheet is arranged on the non-skin side of the absorbent body; the absorbent body is arranged between the liquid permeable surface sheet and the liquid impermeable back sheet; the leg barrier is arranged at intervals along the width direction and extends along the length direction.

Images