Paper diaper with elastic waistband having rear leakage prevention function
Patent Information
- Application Number
- CN202521459157.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-07-11
AI Technical Summary
[0005]为了克服现有纸尿裤在防后漏设计不足，其腰围部分无法随身体动作自动贴合腰部曲线，影响穿戴舒适性和防护效果、以及传统一次性吸收芯体导致使用成本增加和更换不便的缺点，本实用新型提供具有防后漏功能弹性腰围以及可更换吸收芯体的纸尿裤
[0012]与现有技术相比，本实用新型有以下技术效果：1、通过纸尿裤前后端设置有第一弹性围边，能够紧密贴合腰部曲线，在穿戴者活动过程中，该弹性结构可动态适应身体动作变化，维持良好的密封性，从而有效防止排泄物从后部泄漏，显著提升产品的防护性能，此外，其中的合吸收层采用可拆卸式设计，通过里钩面魔术贴与里绒面魔术贴、外钩面魔术贴与外绒面魔术贴的双重粘接结构固定于裤体容纳腔内，可在吸收饱和后更换，而无需整片丢弃纸尿裤，极大延长了基础裤体的使用寿命，降低了长期使用成本。
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Figure CN224876934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene products technology, and in particular to diapers with an elastic waistband that prevents back leakage. Background Technology
[0002] As a key component of baby and some adult care products, diapers are mainly used to absorb excrement and keep the skin dry. Their design and performance are directly related to the user's comfort and health. As consumers' demand for hygiene products increases, the requirements for the functionality, comfort and environmental protection of diapers are also constantly increasing.
[0003] In terms of leak-proof performance, traditional diapers typically increase the length or width of the absorbent core to improve capacity and reduce the risk of back leakage. However, this design does not fully consider the fit and dynamic adaptability of the product in the waist area. In actual use, especially when the wearer is active, the waist area is difficult to automatically adjust the fit according to body movements, which can lead to side or back leakage, affecting the product's protective effect and wearing comfort. In addition, in terms of absorbent structure design, conventional diapers mostly use an integrated absorbent layer structure, that is, the absorbent material and the outer structure are fixed together. Once the absorbent layer is saturated, the entire diaper needs to be replaced. This design not only increases the cost of use, but also puts a burden on caregivers when diapers need to be changed frequently, especially in scenarios where long-term use or continuous nighttime use is required.
[0004] Therefore, we will continue to offer diapers with an elastic waistband that prevents back leakage and replaceable absorbent cores. Utility Model Content
[0005] In order to overcome the shortcomings of existing diapers in terms of back leakage prevention design, the waistband not being able to automatically conform to the waist curve with body movements, affecting wearing comfort and protective effect, and the increased use cost and inconvenience of replacement caused by traditional disposable absorbent cores, this utility model provides diapers with a back leakage prevention elastic waistband and a replaceable absorbent core.
[0006] To address the aforementioned issues, this utility model employs the following technical solution: a diaper with an elastic waistband for leak prevention, comprising a diaper body, a first elastic band, a first hook-and-loop fastener, a first fleece-surface hook-and-loop fastener, and a composite absorbent layer. The diaper body has first elastic bands at both the front and rear ends. The rear end of the first elastic band has first hook-and-loop fasteners on both the left and right sides, and the front end of the first elastic band has first fleece-surface hook-and-loop fasteners on both the left and right sides. A receiving cavity is located in the middle of the diaper body, and the receiving cavity contains the composite absorbent layer, which is composed of a skin-friendly surface... The absorbent body is composed of a skin-friendly surface layer, an inner hook-and-loop fastener, an inner fleece-like hook-and-loop fastener, a guide layer, an absorbent core, a waterproof bottom layer, an outer hook-and-loop fastener, and an outer fleece-like hook-and-loop fastener. The skin-friendly surface layer, the guide layer, the absorbent core, and the waterproof bottom layer are pressed together from top to bottom to form the absorbent body. The skin-friendly surface layer has inner hook-and-loop fasteners at both ends. The inner fleece-like hook-and-loop fasteners are located at corresponding positions at both ends inside the cavity. The waterproof bottom layer has outer hook-and-loop fasteners at both ends. The outer fleece-like hook-and-loop fasteners are located at corresponding positions at both ends outside the cavity.
[0007] Optionally, the rear end of the composite absorber layer is widened.
[0008] Optionally, the sides of the trousers are provided with an arc-shaped structure that conforms to the contour of the inner thigh.
[0009] Optionally, it also includes a second hook-and-loop fastener, a second fleece-faced hook-and-loop fastener, and a second elastic edging. The arc-shaped structure of the trousers is provided with second hook-and-loop fasteners on both the left and right sides, and the arc-shaped structure of the trousers is provided with second fleece-faced hook-and-loop fasteners on both the left and right sides. The arc-shaped structure of the trousers is provided with a second elastic edging.
[0010] Optionally, it also includes urine indicator patches, with urine indicator patches provided on both the left and right sides of the waterproof bottom layer.
[0011] Optionally, the trouser body has heat dissipation holes in the area surrounding the receiving cavity.
[0012] Compared with the prior art, the present invention has the following technical effects: 1. The first elastic edge is set at the front and rear of the diaper, which can closely fit the waist curve. During the wearer's activities, the elastic structure can dynamically adapt to changes in body movements and maintain good sealing, thereby effectively preventing excrement from leaking from the back and significantly improving the protective performance of the product. In addition, the absorbent layer adopts a detachable design and is fixed in the pant body cavity by the double adhesive structure of the inner hook and loop fastener and the outer hook and loop fastener. It can be replaced after absorption saturation without discarding the whole diaper, which greatly extends the service life of the basic pant body and reduces long-term use costs.
[0013] 2. The pants feature an arc-shaped structure on both sides that conforms to the contour of the inner thigh, and are equipped with a second elastic edging. Combined with the wrap-around fastening method of the second hook-and-loop Velcro and the second fleece Velcro, a dynamic sealing structure is formed in the leg area, effectively preventing liquid leakage from the sides and further improving the safety and reliability of the product. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the pants body, the first hook and loop fastener, and the second hook and loop fastener of this utility model.
[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the trouser body, the inner hook and loop fastener, and the outer fleece hook and loop fastener of this utility model.
[0017] Figure 4 This is an exploded view of the composite absorbent layer of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the pants body and urine indicator patch of this utility model.
[0019] The meanings of the labels in the attached diagram are as follows: 1. Pant body, 2. First elastic edging, 3. First hook-and-loop fastener, 4. First fleece-faced hook-and-loop fastener, 5. Second hook-and-loop fastener, 6. Second fleece-faced hook-and-loop fastener, 7. Second elastic edging, 8. Skin-friendly outer layer, 9. Inner hook-and-loop fastener, 901. Inner fleece-faced hook-and-loop fastener, 10. Diversion layer, 11. Absorbent core, 12. Waterproof bottom layer, 13. Outer hook-and-loop fastener, 1301. Outer fleece-faced hook-and-loop fastener, 14. Urine indicator patch, 15. Heat dissipation holes. Detailed Implementation
[0020] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.
[0021] Please refer to Example 1 Figures 1-5A diaper with an elastic waistband that prevents back leakage includes a pant body 1, a first elastic band 2, a first hook-and-loop fastener 3, a first fleece-surface hook-and-loop fastener 4, and a composite absorbent layer. The pant body 1 has first elastic bands 2 at both the front and back ends. These first elastic bands 2 are made of highly elastic and soft material, allowing them to closely conform to the user's waistline, thus preventing back leakage. First hook-and-loop fasteners 3 are located on both sides of the rear end of the first elastic band 2, and first fleece-surface hook-and-loop fasteners 4 are located on both sides of the front end of the first elastic band 2. The first hook-and-loop fasteners 3 and first fleece-surface hook-and-loop fasteners 4 are bonded together to secure the diaper during wear. The pant body 1 has a receiving cavity in the middle, which contains a composite absorbent layer composed of a skin-friendly surface layer 8, an inner hook-and-loop fastener 9, an inner fleece-surface hook-and-loop fastener 901, a diversion layer 10, an absorbent core 11, a waterproof bottom layer 12, an outer hook-and-loop fastener 13, and an outer fleece-surface hook-and-loop fastener 1301. The skin-friendly surface layer 8... The absorbent core 11, the drainage layer 10, and the waterproof bottom layer 12 are sequentially pressed together from top to bottom to form the absorbent body. In addition, the rear end of the composite absorbent layer is widened to enhance its ability to absorb excrement, thereby further improving its leak-proof performance. The pant body 1 has heat dissipation holes 15 around the area of the receiving cavity, which can effectively promote air circulation, reduce local temperature and humidity, and improve wearing comfort. The skin-friendly surface layer 8 has inner hook-and-loop fasteners 9 at both the front and rear ends. The inner fleece hook-and-loop fasteners 901 are provided at corresponding positions at the front and rear ends inside the receiving cavity. The composite absorbent layer is fixed inside the pant body 1 by bonding the inner hook-and-loop fasteners 9 and the inner fleece hook-and-loop fasteners 901. The waterproof bottom layer 12 has outer hook-and-loop fasteners 13 at both the front and rear ends. The outer fleece hook-and-loop fasteners 1301 are provided at corresponding positions at the front and rear ends outside the receiving cavity. The composite absorbent layer is further fixed by bonding the outer hook-and-loop fasteners 13 and the outer fleece hook-and-loop fasteners 1301 to ensure that it will not shift during use.
[0022] When using this diaper, first put it on and secure it by attaching the first hook-and-loop fastener 3 at the back to the first fleece hook-and-loop fastener 4 at the front. The first elastic edging 2, due to its elasticity and softness, can adapt to the waist curve of users of different body types, ensuring a tight fit and preventing excrement from leaking from the back. In addition, the composite absorbent layer, due to its multi-layer structure, has good absorbency and leak-proof ability. Once the composite absorbent layer needs to be replaced, the user only needs to tear off the old composite absorbent layer and attach the new composite absorbent layer to the inner fleece hook-and-loop fastener 901 and outer fleece hook-and-loop fastener 1301 inside and outside the receiving cavity through the inner hook-and-loop fastener 9 and outer hook-and-loop fastener 13 respectively, which can easily complete the replacement operation while ensuring the stability of the new composite absorbent layer.
[0023] Example 2: Based on Example 1, please refer to... Figure 2 and Figure 5It also includes a second hook-and-loop fastener 5, a second fleece-surface hook-and-loop fastener 6, a second elastic edging 7, and a wetness indicator patch 14. The sides of the pant body 1 have arc-shaped structures that conform to the contours of the inner thighs to improve fit and enhance leak-proof performance. The arc-shaped structures of the pant body 1 are provided with second hook-and-loop fasteners 5 on both sides and second fleece-surface hook-and-loop fasteners 6 on both sides. By bonding the second hook-and-loop fasteners 5 and the second fleece-surface hook-and-loop fasteners 6, the pant body 1 forms a wraparound structure, better wrapping the user's groin area. The arc-shaped structure of the pants body 1 is provided with a second elastic edging 7. The second elastic edging 7 has good elasticity and retraction force, and can fit tightly to the inner thigh skin when worn, effectively preventing liquid leakage from the side. The waterproof bottom layer 12 is provided with urine indicator patches 14 on both sides. The urine indicator patch 14 is made of absorbent material with color-changing properties. When it absorbs liquid, it will change color, which makes it easy to observe and judge whether excretion has occurred and whether the composite absorbent layer is close to saturation, thereby deciding whether to replace the absorbent layer or adjust the nursing frequency.
[0024] When the diaper is worn, the second hook-and-loop fastener 5 and the second fleece-faced hook-and-loop fastener 6 form a closed loop structure in the leg area, thereby enhancing the wrapping feeling at the base of the legs and reducing the risk of liquid leakage from the sides. At the same time, the second elastic band 7 continuously applies gentle pressure during wear, keeping it close to the skin surface and maintaining good sealing even during activity to prevent side leakage.
[0025] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.
Claims
1. A diaper with an elastic waistband that prevents back leakage, comprising a pant body (1), characterized in that, It also includes a first elastic edging (2), a first hook-and-loop fastener (3), a first fleece-lined hook-and-loop fastener (4), and a composite absorbent layer. The trouser body (1) is provided with a first elastic edging (2) at both the front and rear ends. The first elastic edging (2) at the rear end is provided with a first hook-and-loop fastener (3) on both the left and right sides. The first elastic edging (2) at the front end is provided with a first fleece-lined hook-and-loop fastener (4) on both the left and right sides. The trouser body (1) is provided with a receiving cavity in the middle. The receiving cavity contains a composite absorbent layer, which consists of a skin-friendly surface layer (8), an inner hook-and-loop fastener (9), an inner fleece-lined hook-and-loop fastener (901), a diversion layer (10), and an absorbent core (1). 1) It consists of a waterproof bottom layer (12), an outer hook-and-loop fastener (13), and an outer fleece hook-and-loop fastener (1301). The skin-friendly surface layer (8), the flow guiding layer (10), the absorbent core (11), and the waterproof bottom layer (12) are pressed together from top to bottom to form the absorbent body. The skin-friendly surface layer (8) is provided with inner hook-and-loop fasteners (9) at both the front and rear ends. The inner fleece hook-and-loop fasteners (901) are provided at the corresponding positions at the front and rear ends inside the cavity. The waterproof bottom layer (12) is provided with outer hook-and-loop fasteners (13) at both the front and rear ends. The outer fleece hook-and-loop fasteners (1301) are provided at the corresponding positions at the front and rear ends outside the cavity.
2. The diaper with an elastic waistband for preventing back leakage as described in claim 1, characterized in that, The rear end of the composite absorber layer is widened.
3. The diaper with an elastic waistband for preventing back leakage as described in claim 2, characterized in that, The trousers (1) have an arc-shaped structure on both sides that conforms to the contour of the inner thigh.
4. The diaper with an elastic waistband for preventing back leakage as described in claim 3, characterized in that, It also includes a second hook-and-loop fastener (5), a second fleece-faced hook-and-loop fastener (6), and a second elastic edging (7). The arc-shaped structure of the pants (1) is provided with second hook-and-loop fasteners (5) on both the left and right sides, and the arc-shaped structure of the pants (1) is provided with second fleece-faced hook-and-loop fasteners (6) on both the left and right sides. The arc-shaped structure of the pants (1) is provided with a second elastic edging (7).
5. The diaper with an elastic waistband for preventing back leakage as described in claim 4, characterized in that, It also includes a urine indicator patch (14), and the water-proof bottom layer (12) is provided with urine indicator patches (14) on both the left and right sides.
6. The diaper with an elastic waistband for preventing back leakage as described in claim 5, characterized in that, The trouser body (1) has heat dissipation holes (15) around the area of the receiving cavity.