A type of pull-up diaper with a comfortable waistband featuring multiple elastic zones.
By designing a multi-elastic waistband structure, the problem of baby pull-up diapers slipping down after absorbing excrement has been solved, achieving greater elastic restraint and comfort, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OBEE PERSONAL CARE PRODUCTS (FOSHAN) CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing baby pull-up diapers lack sufficient elastic restraint at the waist after absorbing excrement, causing them to slip down from the crotch and affecting the user experience.
A waistband structure with multiple elastic zones is designed, including a first, second, and third elastic zone, each composed of elastic spandex yarns of different deniers. These elastic zones are formed by interlacing and folding to provide multi-layered elastic restraint and comfort.
The elastic restraint of the waistband has been improved to prevent slippage, while also enhancing comfort and preventing side leakage during use.
Smart Images

Figure CN224505743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene products technology, specifically to a pull-up pant with a comfortable waistband featuring multiple elastic zones. Background Technology
[0002] Among commonly used baby hygiene products, pull-up diapers typically have elastic materials such as spandex yarn at the waistband to provide elastic restraint and keep the diaper securely in place around the baby's crotch. Currently, most pull-up diapers use fine denier spandex yarn as the elastic material at the waistband. Fine denier spandex yarn has a softer elasticity, which can prevent the pull-up diaper from feeling too tight at the waist and improve comfort. However, some pull-up diapers prioritize waistband comfort at the expense of elastic restraint. When the pull-up diaper absorbs waste and becomes heavier, the elastic restraint at the waistband becomes insufficient, causing the pull-up diaper to slip off the crotch and affecting the user experience.
[0003] Based on the above, Chinese Patent Publication No. CN217660460U discloses a pull-up trouser, including a pull-up trouser body. The outermost layer of the pull-up trouser body is provided with an outer non-woven fabric. The pull-up trouser body is provided with a front waist, a back waist, and a crotch. The two ends of the crotch are used to connect the front waist and the back waist. Both the front waist and the back waist are provided with an elastic fabric and an inner non-woven fabric. The elastic fabric is attached to the outer non-woven fabric, and the inner non-woven fabric is located on the side of the elastic fabric away from the outer non-woven fabric. The crotch is provided with an absorbent sheet. The outer side of the absorbent sheet is attached to the outer non-woven fabric, and the two ends of the absorbent sheet are respectively located between the elastic fabric and the inner non-woven fabric.
[0004] The aforementioned patent document discloses a pull-up diaper with a soft and comfortable waistband. This pull-up diaper combines elastic fabric and non-woven fabric to allow the diaper body to conform to the human skin and reduce the feeling of tightness during use. Although the elastic fabric reduces the feeling of tightness through its own elasticity and large-area contact with the human body, the elastic restraint of the elastic fabric is relatively low, and there is only one elastic band at both the front and back waistbands. The elastic restraint of the pull-up diaper at the waistband may not be enough to restrain the pull-up diaper that absorbs excrement at the crotch, causing the pull-up diaper to slip off the crotch. Therefore, there is still room for improvement in this pull-up diaper. Utility Model Content
[0005] To address the technical deficiencies in the background technology, this utility model proposes a pull-up pant with a multi-elastic zone comfortable waistband, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:
[0006] A pull-up panty with a multi-elastic zone comfortable waistband includes a pull-up panty body and an elastic waistband. The pull-up panty body is composed of a top layer, an absorbent core, a leak-proof bottom membrane, and a bottom non-woven fabric from top to bottom. The top layer has leak-proof side panels on both sides in the width direction.
[0007] The bottom non-woven fabric is composed of an inner layer and an outer layer from top to bottom. Both ends of the bottom non-woven fabric extend outward in the length direction to form an elastic waistband.
[0008] The elastic waistband includes the following structure: a first elastic zone is formed between the inner and outer fabric layers, and a first elastic layer is provided in the first elastic zone; the end of the elastic waistband extends outward and is folded upward to form an inner waistband; a second elastic zone is formed between the inner and outer fabric layers in the inner waistband, and a second elastic layer is provided in the second elastic zone; a third elastic zone is formed between the elastic waistband and the inner waistband, and a third elastic layer is provided in the third elastic zone.
[0009] As a further technical solution of this utility model, both the first elastic layer and the second elastic layer are composed of a number of elastic spandex filaments extending in the width direction, and the elastic spandex filaments in the first elastic layer and the second elastic layer are arranged in an alternating pattern with projections in the vertical direction.
[0010] As a further technical solution of this utility model, the denier of the elastic spandex filament in the first elastic layer is 300~900D, and the denier of the elastic spandex filament in the second elastic layer is 20~100D.
[0011] As a further technical solution of this utility model, the third elastic layer is formed by an elastic membrane extending in the width direction, and the surface of the third elastic layer has a plurality of air-permeable holes.
[0012] As a further technical solution of this utility model, the bottom nonwoven fabric extends outward at both ends in the width direction to form a leg circumference portion, and a number of leg circumference spandex filaments extending in the length direction are provided between the inner layer fabric and the outer layer fabric in the leg circumference portion.
[0013] As a further technical solution of this utility model, a flow-guiding and diffusion layer is provided between the upper surface of the absorbent core and the surface layer.
[0014] As a further technical solution of this utility model, the absorbent core is composed of an upper covering layer, an upper absorbent material layer, a fluffy cotton layer, a lower absorbent material layer, and a lower covering layer from top to bottom.
[0015] As a further technical solution of this utility model, the two ends of the leak-proof partition in the length direction are respectively fixedly connected to the elastic waistbands at both ends of the bottom non-woven fabric, and the top of the leak-proof partition is wrapped with partition spandex yarn extending in the length direction.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention provides a pull-up trouser that offers a comfortable waistband without compromising elastic restraint. The bottom layer of non-woven fabric extends along both ends of the trouser's length and is folded to form an elastic waistband. The elastic waistband consists of a first elastic zone, a second elastic zone, and a third elastic zone. The first elastic zone provides high elastic restraint, the second elastic zone provides a soft touch on the side of the elastic waistband that contacts the body, and the third elastic zone, through its large contact area, evenly distributes the elastic restraint within the elastic waistband. This invention, through the cooperation of multiple elastic zones, ensures sufficient elastic restraint while improving comfort during use. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view along the length of a pull-up panty with a comfortable waistband featuring multiple elastic zones.
[0019] Figure 2 yes Figure 1 A partial schematic diagram of point A in the middle.
[0020] Figure 3 This is a cross-sectional view in the width direction of a pull-up panty with a comfortable waistband featuring multiple elastic zones.
[0021] Figure 4 This is a schematic diagram of a pull-up panty with a comfortable waistband featuring multiple elastic zones.
[0022] Figure 5 This is a cross-sectional view of the absorbent core of a pull-up panty with a multi-elasticity comfortable waistband.
[0023] The components are: 1-Pull-up pants body, 11-Outer layer, 12-Absorbent core, 121-Upper covering layer, 122-Upper absorbent material layer, 123-Fluffy cotton layer, 124-Lower absorbent material layer, 125-Lower covering layer, 13-Leak-proof bottom film, 14-Bottom non-woven fabric, 141-Inner layer fabric, 142-Outer layer fabric, 15-Leak-proof side panel, 151-Side spandex yarn, 16-Leg circumference, 17-Leg circumference spandex yarn, 18-Diffusion layer, 2-Elastic waistband, 21-First elastic zone, 22-Second elastic zone, 23-Third elastic zone, 24-Elastic spandex yarn. Detailed Implementation
[0024] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.
[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A pull-up diaper with a multi-elasticity comfortable waistband includes a pull-up diaper body 1 and an elastic waistband 2. The pull-up diaper body 1 is composed of, from top to bottom, a surface layer 11, an absorbent core 12, a leak-proof bottom membrane 13, and a bottom non-woven fabric 14. The surface layer 11 has leak-proof side panels 15 on both sides in the width direction. The bottom non-woven fabric 14 is composed of, from top to bottom, an inner fabric 141 and an outer fabric 142. Both ends of the bottom non-woven fabric 14 extend outwards in the length direction to form the elastic waistband 2. 2 includes the following structure: a first elastic region 21 is formed between the inner layer fabric 141 and the outer layer fabric 142, and a first elastic layer is provided in the first elastic region 21; the elastic waistband 2 extends outward from its length end and is folded upward to form an inner waistband; a second elastic region 22 is formed between the inner layer fabric 141 and the outer layer fabric 142 in the inner waistband, and a second elastic layer is provided in the second elastic region 22; a third elastic region 23 is formed between the elastic waistband 2 and the inner waistband, and a third elastic layer is provided in the third elastic region 23.
[0026] This invention provides pull-up diapers that improve waist comfort without compromising elastic restraint. In these diapers, the outer layer 11 is preferably made of hot-air nonwoven fabric. This outer layer 11 comes into direct contact with the human body during use. Using hot-air nonwoven fabric enhances comfort during contact, and its loose, porous structure improves the efficiency of excrement penetration downwards. A flow-guiding and diffusion layer 18 is provided between the upper surface of the absorbent core 12 and the outer layer 11. This layer is preferably made of spunbond nonwoven fabric. Spunbond nonwoven fabric effectively promotes liquid penetration and diffusion, and also prevents upward backflow. When excrement penetrates the outer layer 11 and comes into contact with the flow-guiding and diffusion layer 18, the layer promotes rapid downward penetration into the absorbent core 12 for absorption. Furthermore, by promoting excrement diffusion, the contact area between the excrement and the absorbent core 12 is increased, thereby improving the efficiency of excrement absorption by the absorbent core 12.
[0027] Reference Figure 5The absorbent core 12 of this invention is composed of, from top to bottom, an upper covering layer 121, an upper absorbent material layer 122, a fluffy cotton layer 123, a lower absorbent material layer 124, and a lower covering layer 125. The upper covering layer 121 and the lower covering layer 125 are preferably made of dust-free paper. Dust-free paper can effectively promote liquid diffusion. When urine permeates through the diffusing layer 18 to the upper covering layer 121, the upper covering layer 121 further promotes the diffusion of urine, increasing the effective contact area between the urine and the absorbent core 12. Both the upper absorbent material layer 122 and the lower absorbent material layer 124 are preferably made of absorbent resin. The absorbent resin can absorb a large amount of liquid and lock the liquid inside, thereby ensuring the absorbency of the pull-up pants. The fluffy cotton layer 123 is preferably a mesh structure layer made of fluffy cotton. It can fix the upper absorbent material layer 122 and the lower absorbent material layer 124 to a certain extent, avoiding the phenomenon of layering or clumping inside the absorbent core 12 after absorbing urine. The fluffy cotton layer 123 can also improve the efficiency of urine diffusion inside the absorbent core 12.
[0028] In this invention, both the leak-proof bottom film 13 and the bottom non-woven fabric 14 are located near the outer surface of the pull-up diaper. The leak-proof bottom film 13 is preferably a waterproof and breathable PE film, which can prevent urine inside the pull-up diaper from seeping to the outer surface of the pull-up diaper, keeping the outer surface of the pull-up diaper dry and ensuring the breathability of the pull-up diaper. The inner layer fabric 141 and the outer layer fabric 142 of the bottom non-woven fabric 14 are preferably SMS non-woven fabrics. SMS non-woven fabrics can ensure the surface strength of the pull-up diaper while improving the softness and touch comfort of the pull-up diaper surface.
[0029] With the above structure, it should be noted that the two ends of the bottom nonwoven fabric 14 in the length direction are extended outward to form an elastic waistband 2. The elastic waistband 2 is composed of a front waistband and a back waistband. Both the front waistband and the back waistband have tensile elasticity by setting elastic materials such as elastic spandex yarn between the inner layer fabric 141 and the outer layer fabric 142. After connecting and fixing the two ends of the front waistband and the back waistband in the width direction, a ring-shaped elastic waistband 2 is formed. After the elastic waistband 2 is folded to form an inner waistband, the elastic material inside the elastic waistband 2 is divided into a first elastic layer and a second elastic layer. The elastic waistband 2 uses the elastic constraint force generated by the internal elastic material to allow the pull-up pants to be worn and fixed in the crotch area of the human body.
[0030] It should be further explained that both the first elastic layer and the second elastic layer are composed of several elastic spandex filaments 24 extending in the width direction. The elastic spandex filaments 24 in the first elastic layer and the second elastic layer are arranged in an alternating pattern in the vertical direction. The denier of the elastic spandex filaments 24 in the first elastic layer is 300~900D, and the denier of the elastic spandex filaments 24 in the second elastic layer is 20~100D. The first elastic layer is composed of elastic spandex filaments 24 with a higher denier, which enables the first elastic area 21 to provide a higher elastic restraint force for the elastic waistband 2 of the pull-up pants. Furthermore, the first elastic layer is separated from the human body by three layers of non-woven fabric, namely two inner layers 141 and one outer layer 142. The three layers of non-woven fabric can play an effective cushioning role and reduce the tightness of the first elastic layer on the human body, thereby improving the elastic restraint force of the elastic waistband 2 of the pull-up pants while ensuring comfort.
[0031] Furthermore, the second elastic layer is composed of elastic spandex yarn 24 with a low denier, which gives the second elastic area 22 a gentle elastic restraint and avoids a feeling of tightness. The second elastic area 22 is located inside the pull-up pants on the side closer to the human body, and it can provide a more comfortable elastic restraint for the user during use. The second elastic layer is mainly used to compensate for the defect that the elastic restraint may be insufficient due to the excessive non-woven fabric separating the first elastic layer from the human body. Through the cooperation of the first elastic area 21 and the second elastic area 22, the elastic waistband 2 of the pull-up pants has sufficient elastic restraint, which can prevent the pull-up pants from falling off after absorbing excrement, and at the same time improve the comfort during use by reducing the feeling of tightness.
[0032] It should be further explained that the third elastic layer is formed by an elastic membrane extending in the width direction. Several breathable holes are penetrating the surface of the third elastic layer. The third elastic layer is preferably an elastic perforated membrane. The third elastic layer provides sufficient elastic restraint for the elastic waistband 2 of the pull-up pants in the third elastic area 23. The third elastic layer has a large surface area, which evenly distributes the elastic restraint through large-area contact, thereby avoiding the elastic restraint of the elastic waistband 2 of the pull-up pants from being too concentrated and causing a tight feeling, thereby improving the comfort of the pull-up pants waistband.
[0033] As one of the preferred embodiments of this utility model, refer to Figure 3 The bottom nonwoven fabric 14 extends outward at both ends in the width direction to form a leg circumference 16. A number of leg circumference spandex filaments 17 extending in the length direction are provided between the inner layer fabric 141 and the outer layer fabric 142 in the leg circumference 16. The leg circumference spandex filaments 17 are preferably made of fine denier spandex filaments. The leg circumference spandex filaments 17, through elastic restraint, allow the leg circumference 16 of the pull-up pants to be restrained around the human thigh root position, so that the pull-up pants can be completely wrapped around the human crotch. The restraint of the leg circumference 16 can, to a certain extent, prevent excrement from leaking from the thigh root position to the outer surface of the pull-up pants, thereby improving the anti-leakage effect of the pull-up pants.
[0034] As one of the preferred embodiments of this utility model, refer to Figure 3 The two ends of the leak-proof partition 15 are fixedly connected to the elastic waistband 2 at both ends of the bottom non-woven fabric 14. The top of the leak-proof partition 15 is wrapped with a partition spandex filament 151 extending in the length direction. The leak-proof partition 15 is preferably made of waterproof non-woven fabric. During the use of the pull-up pants, the top of the leak-proof partition 15 is tightly attached to the surface of the human skin under the stretching elasticity of the partition spandex filament 151. The two leak-proof partitions 15, the surface layer 11 and the human body form a space to accommodate excrement. The leak-proof partition 15 is mainly used to block the excrement that has not yet penetrated downwards and remains on the surface of the surface layer 11, so as to prevent the excrement from leaking from the groin area to the outer surface of the pull-up pants and improve the side leakage prevention effect of the pull-up pants.
[0035] In summary, this utility model provides a pull-up trouser that offers a comfortable waistband without compromising elastic restraint. The bottom layer of non-woven fabric in this pull-up trouser extends along both ends of its length and is folded to form an elastic waistband 2. The elastic waistband 2 consists of a first elastic zone 21, a second elastic zone 22, and a third elastic zone 23. The first elastic zone 21 provides high elastic restraint to the elastic waistband 2, the second elastic zone 22 provides a soft touch on the side of the elastic waistband 2 that contacts the body, and the third elastic zone 23, through a large contact area, evenly distributes the elastic restraint within the elastic waistband 2. This utility model, through the cooperation of multiple elastic zones, ensures that the elastic waistband 2 has sufficient elastic restraint while improving comfort during use.
[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A pull-on pant having a multi-elastic zone comfort waist, comprising a pull-on pant body (1), an elastic waist (2), characterized in that, The pull-up pants body (1) consists of a top layer (11), an absorbent core (12), a leak-proof bottom film (13), and a bottom non-woven fabric (14) from top to bottom. The top layer (11) has leak-proof partitions (15) on both sides in the width direction. The bottom nonwoven fabric (14) is composed of an inner layer fabric (141) and an outer layer fabric (142) from top to bottom. The bottom nonwoven fabric (14) extends outward at both ends in the length direction to form an elastic waistband (2). The elastic waistband (2) includes the following structure: a first elastic area (21) is formed between the inner layer fabric (141) and the outer layer fabric (142), and a first elastic layer is provided in the first elastic area (21); the elastic waistband (2) extends outward at its length end and is folded upward to form an inner waistband; a second elastic area (22) is formed between the inner layer fabric (141) and the outer layer fabric (142) in the inner waistband, and a second elastic layer is provided in the second elastic area (22); a third elastic area (23) is formed between the elastic waistband (2) and the inner waistband, and a third elastic layer is provided in the third elastic area (23).
2. The pull-on pant having a comfort waistband with multiple elastic regions according to claim 1, wherein, Both the first elastic layer and the second elastic layer are composed of several elastic spandex filaments (24) extending in the width direction. The elastic spandex filaments (24) in the first elastic layer and the second elastic layer are arranged in an alternating pattern with projections in the vertical direction.
3. The pull-up pants with a multi-elastic zone comfortable waistband according to claim 2, characterized in that, The denier of the elastic spandex filament (24) in the first elastic layer is 300~900D, and the denier of the elastic spandex filament (24) in the second elastic layer is 20~100D.
4. The pull-on pant having a comfort waistband with multiple elastic regions of claim 1, wherein, The third elastic layer is formed of an elastic membrane extending along the width direction, and the surface of the third elastic layer has a plurality of air vents.
5. The pull-on pant having a comfort waistband with multiple elastic regions of claim 1, wherein, The bottom nonwoven fabric (14) extends outward at both ends in the width direction to form a leg circumference (16). A number of leg circumference spandex filaments (17) extending in the length direction are provided between the inner layer fabric (141) and the outer layer fabric (142) in the leg circumference (16).
6. The pull-on pant having a comfort waistband with multiple elastic regions of claim 1, wherein, A flow-guiding and diffusion layer (18) is provided between the upper surface of the absorbent core (12) and the surface layer (11).
7. The pull-on pant having a comfort waistband with multiple elastic regions of claim 1, wherein, The absorbent core (12) is composed of an upper covering layer (121), an upper absorbent material layer (122), a fluffy cotton layer (123), a lower absorbent material layer (124), and a lower covering layer (125) from top to bottom.
8. The pull-up pants with a multi-elastic zone comfortable waistband according to claim 1, characterized in that, The two ends of the leak-proof partition (15) along the length direction are fixedly connected to the elastic waistband (2) at both ends of the bottom non-woven fabric (14), and the top of the leak-proof partition (15) is wrapped with a partition spandex filament (151) extending along the length direction.