Absorbing body with stereoscopic barrier and sanitary product
Patent Information
- Application Number
- CN202522061565.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0005]为了克服现有技术的不足，本实用新型提供一种具有立体隔边的吸收体，有效解决现有吸收制品防侧漏与舒适度矛盾的问题
[0020] The beneficial effects of this utility model are as follows: The absorbent body of this utility model with three-dimensional side septum is provided with a leak-proof side septum having at least a double-layer structure. The three-dimensional wave structure provides a more effective height and elastic fit space, which can better adapt to the changes in body shape during movement and fit closely to the skin folds, thereby effectively improving the side leakage prevention effect. Moreover, by setting the leak-proof side septum as a composite structure with at least a double layer, each single layer can be made of a softer and thinner material, which can make it more skin-friendly and comfortable, effectively improving the wearing comfort.
Smart Images
Figure CN224711242U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene care products technology, and in particular to an absorbent body and hygiene product with three-dimensional partitions. Background Technology
[0002] Sanitary napkins, as essential hygiene products for women during menstruation, directly impact women's quality of life and health. Side leakage is a common problem during sanitary napkin use, causing inconvenience and potential hygiene issues. Therefore, the anti-leakage performance of sanitary napkins is a crucial indicator of their comfort.
[0003] Existing absorbent hygiene products, such as sanitary napkins and diapers, generally use leak-proof side panels on both sides of the absorbent core to prevent side leakage. Traditional leak-proof side panels often use simple non-woven fabric folds or single-layer three-dimensional protective structures, which are insufficient in terms of leak-proof effect and wearing comfort. On the one hand, the simple side panel structure lacks elasticity and cannot form a tight fit with the user's skin, especially when the user is active, which can easily create gaps and lead to leakage; on the other hand, some side panels use stiff materials or excessive height in order to achieve a leak-proof effect, which reduces wearing comfort and may even cause discomfort due to skin friction.
[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an absorbent body with a three-dimensional partition, which effectively solves the problem of the contradiction between preventing side leakage and comfort in existing absorbent products.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] An absorbent body with a three-dimensional partition includes an absorbent body and a leak-proof partition. The leak-proof partition is disposed on both sides of the absorbent body. The absorbent body includes at least a top layer, an absorbent core, and a leak-proof bottom layer arranged sequentially from top to bottom. The leak-proof partition includes at least an upper partition layer and a lower partition layer stacked together. The upper partition layer is disposed on the upper surface of the lower partition layer in a three-dimensional wave structure and is disposed on the side close to the skin.
[0008] In the above structure, the lower layer of the partition is set as a planar structure.
[0009] In the above structure, the three-dimensional waveform structure is configured as one of the following: a continuous or discontinuous wave-shaped, sawtooth-shaped, columnar, trapezoidal, or concave-convex structure along the width direction of the product.
[0010] In the above structure, the ripple height of the three-dimensional waveform structure is 0.5mm-3mm, and the distance between the peaks of two adjacent three-dimensional waveform structures is 2mm-5mm.
[0011] In the above structure, the three-dimensional waveform structure also includes a linear stripe structure extending along the length of the product.
[0012] In the above structure, the three-dimensional waveform structure also includes a longitudinal waveform structure extending along the length direction of the product.
[0013] In the above structure, the longitudinal waveform structure is set as a continuous or discontinuous S-shaped structure or Z-shaped structure along the length of the product.
[0014] In the above structure, the width ratio of the upper partition layer to the lower partition layer is 1.1:1-3:1.
[0015] In the above structure, the upper layer of the partition is a hydrophobic nonwoven fabric with a basis weight of 5g-50g.
[0016] In the above structure, the lower layer of the partition is a hydrophobic nonwoven fabric with a basis weight of 5g-50g.
[0017] In the above structure, the connection between the upper partition layer and the lower partition layer is achieved by thermo-pressing, adhesive bonding, or ultrasonic composite bonding.
[0018] This utility model also provides:
[0019] A hygiene product comprising an absorbent body with a three-dimensional partition as described above, wherein the hygiene product is a sanitary napkin, diaper, or nursing pad.
[0020] The beneficial effects of this utility model are as follows: The absorbent body of this utility model with three-dimensional side septum is provided with a leak-proof side septum having at least a double-layer structure. The three-dimensional wave structure provides a more effective height and elastic fit space, which can better adapt to the changes in body shape during movement and fit closely to the skin folds, thereby effectively improving the side leakage prevention effect. Moreover, by setting the leak-proof side septum as a composite structure with at least a double layer, each single layer can be made of a softer and thinner material, which can make it more skin-friendly and comfortable, effectively improving the wearing comfort. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0024] Figure 3 This is a cross-sectional schematic diagram of the present invention in its unfolded state;
[0025] Figure 4 This is a schematic diagram of the cross-section of the present invention in its folded state;
[0026] Figures 5(a) to (e) are schematic diagrams of the cross-section of the leak-proof partition in Example 2;
[0027] Figures 6(a) to (c) are schematic diagrams of the leak-proof partition edge structure along the product length direction in Example 2;
[0028] Figure 7 This is a schematic diagram of the leak-proof partition along the length of the product in Example 3.
[0029] Reference numerals: 1. Absorbent body; 11. Surface layer; 12. Flow guiding layer; 13. Absorbent core; 14. Leak-proof bottom layer; 2. Leak-proof side barrier; 21. Upper side barrier layer; 22. Lower side barrier layer; 3. Protective wing. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described below.
[0031] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0032] Example 1
[0033] Reference Figures 1 to 4This utility model provides an absorbent body with three-dimensional side panels, including an absorbent body 1 and leak-proof side panels 2. The leak-proof side panels 2 are disposed on both sides of the absorbent body 1. The absorbent body 1 includes at least a top layer 11, an absorbent core 13, and a leak-proof bottom layer 14 arranged sequentially from top to bottom. The leak-proof side panels 2 are bonded to the top layer 11. The leak-proof side panels 2 include at least an upper side panel 21 and a lower side panel 22. The lower side panel 22 is connected to the top layer 11. The upper side panel 21 is disposed on the upper surface of the lower side panel 22, that is, the upper side panel 21 is disposed on the side close to the skin. The upper side panel 21 is configured as a three-dimensional wave structure along the length direction of the product, and the lower side panel 22 is configured as a planar structure.
[0034] The leak-proof partition 2 is set as a double-layer structure with overlapping layers. The lower layer 22 of the partition remains flat, while the side of the upper layer 21 that is close to the skin is set as a three-dimensional wave structure along the width of the product. The three-dimensional wave structure provides a greater effective height, and at the same time, the three-dimensional wave structure can form multiple three-dimensional blocking spaces, which can better adapt to the changes in body shape during human activity, closely fit the skin folds, and effectively prevent side leakage of liquid.
[0035] In other embodiments, the leak-proof partition 2 can also be configured as a multi-layer composite structure. That is, the leak-proof partition 2 is not limited to a two-layer composite structure. When it is configured as a multi-layer composite structure, the top layer is configured as a three-dimensional wave structure, and the remaining layers are configured as planar structures. Correspondingly, the thickness of each layer can be appropriately reduced. For example, when the leak-proof partition 2 is configured as a three-layer composite structure, the leak-proof partition 2 includes an upper layer, a middle layer, and a lower layer stacked together. The upper layer is located on the side close to the skin and is configured as a three-dimensional wave structure, while the middle and lower layers are configured as planar structures.
[0036] By setting the leak-proof barrier 2 to a double-layer or multi-layer composite structure, each single layer of material can be made thinner, making the leak-proof barrier 2 softer and ensuring that it will not rub against and damage the skin when in contact with the skin, effectively improving the overall comfort of the product.
[0037] Furthermore, the three-dimensional waveform structure is configured as one of the following: continuous or discontinuous wavy, sawtooth, trapezoidal, or convex / concave structures along the width direction of the product. That is, the cross-section of the leak-proof partition 2 is one of the following: wavy, sawtooth, trapezoidal, or convex / concave structures.
[0038] Furthermore, the ripple height of the three-dimensional waveform structure is 0.5mm-3mm, and the distance between the peaks of two adjacent three-dimensional waveform structures is 2mm-5mm.
[0039] Furthermore, the width ratio of the upper partition layer 21 to the lower partition layer 22 is set to 1.1:1-3:1.
[0040] Furthermore, the upper partition layer 21 is made of hydrophobic nonwoven fabric with a basis weight of 5g-50g. The lower partition layer 22 is also made of hydrophobic nonwoven fabric with a basis weight of 5g-50g. The upper partition layer 21 and the lower partition layer 22 are connected and bonded together by heat pressing, gluing, ultrasonic bonding or other chemical adhesive methods to form a leak-proof partition 2.
[0041] Hydrophobic nonwoven fabrics can be formed by processes such as spunbonding, hot air, meltblowing, hydroentangling, and needle punching, and no single process is specified here.
[0042] Reference Figure 1 , Figure 3 and Figure 4 The absorbent body 1, from top to bottom, consists of a surface layer 11, a flow-guiding layer 12, an absorbent core 13, and a leak-proof bottom layer 14. In actual installation, the surface layer 11 can be formed by cutting hydrophilic non-woven fabric; the flow-guiding layer 12 can be formed by cutting a material with a mesh structure; the absorbent core 13 is made of a material with high water absorption properties, such as a wood pulp polymer composite core; and the leak-proof bottom layer 14 can be formed by cutting a PE breathable membrane material. The cut surface layer 11, flow-guiding layer 12, absorbent core 13, and leak-proof bottom layer 14 are stacked together and bonded together using processes such as adhesive bonding or hot pressing to form the absorbent body 1.
[0043] In other embodiments, the absorbent body 1 may also be configured as a structure consisting of a top layer 11, an absorbent core 13, and a leak-proof bottom layer 14 from top to bottom.
[0044] Leak-proof partition 2 is set on both sides of the absorbent body 1. Specifically, the edge of the lower partition 22 is combined with the leak-proof bottom layer 14, and the height of the leak-proof partition 2 is higher than the thickness of the absorbent body 1. The composite process can be heat sealing, adhesive bonding, etc., and is not limited to one method.
[0045] Furthermore, the absorber with three-dimensional partitions also includes protective wings 3, which are disposed on both sides of the absorber body 1, and the upper surface of the protective wings 3 is also configured as a three-dimensional wave structure.
[0046] Example 2
[0047] Reference Figure 1 Figures 5(a) to (e) and 6(a) to (c) show that the difference between Embodiment 2 and Embodiment 1 is that the leak-proof partition 2 includes an upper partition layer 21 and a lower partition layer 22. The upper partition layer 21 is configured as a three-dimensional waveform structure. The three-dimensional waveform structure is configured as one of the following: a wave-shaped, sawtooth-shaped, columnar, trapezoidal, or concave-convex structure that is continuous or discontinuous along the width direction of the product. The three-dimensional waveform structure also includes a continuous or discontinuous S-shaped or Z-shaped structure that extends along the length direction of the product. That is, in this embodiment, the leak-proof partition 2 not only has a wave-shaped cross-section, but also has a longitudinal waveform structure along the length direction of the product.
[0048] Through the above technical solution, the leak-proof side panel 2 not only provides a greater effective height, forming multiple three-dimensional blocking spaces to achieve an effective side leakage prevention effect; but also forms certain ripples in the length and width directions of the product, thereby reducing the contact area between the leak-proof side panel 2 and the skin. Breathable channels are formed between the ripples, effectively enhancing breathability and improving wearing comfort.
[0049] Example 3
[0050] Reference Figure 1 Figures 5(a) to (e) and Figure 7 The difference between Example 3 and Example 1 is that the leak-proof partition 2 includes an upper partition layer 21 and a lower partition layer 22. The upper partition layer 21 is configured as a three-dimensional waveform structure. The three-dimensional waveform structure is configured as one of the following: a continuous or discontinuous wave-shaped, sawtooth, columnar, trapezoidal, or concave-convex structure along the width direction of the product. The three-dimensional waveform structure also includes a straight stripe structure extending along the length direction of the product. That is, in this embodiment, the leak-proof partition 2 not only has a wave-shaped cross-section, but also has a longitudinally extending stripe pleated structure along the length direction of the product.
[0051] Through the above technical solution, the leak-proof side panel 2 not only provides a greater effective height, forming multiple three-dimensional blocking spaces to achieve an effective side leakage prevention effect; but also, its length direction is set as a straight stripe structure, with pleats and gaps between adjacent straight stripes, which can also reduce the contact area between the leak-proof side panel 2 and the skin, effectively enhancing breathability and improving wearing comfort.
[0052] The preparation process of the absorbent with three-dimensional sidewalls described above can be as follows: First, two types or the same type of nonwoven fabric are cut into two rolls of fabric with different widths using a slitting device; then, the two rolls of nonwoven fabric are pressed together using a composite device to form a composite nonwoven fabric structure with a three-dimensional wave structure (i.e., leak-proof sidewall 2). The composite device includes a material conveying module, a folding module, a pressing module, and a winding module, etc. The pressing process can be selected by heat sealing, gluing, or ultrasonic composite; finally, the obtained composite nonwoven fabric structure is combined with the prepared absorbent body 1 through a dedicated absorbent production line to form the finished absorbent with three-dimensional sidewalls.
[0053] The preparation process of the absorbent with three-dimensional side panels described above can also be as follows: A composite device is added to the existing absorbent production line. This composite device includes a folding module and a pressing module. Two pre-cut nonwoven fabrics of different widths are passed through this composite device to form a composite nonwoven fabric structure with a three-dimensional waveform structure (i.e., leak-proof side panels 2). The pressing process can be selected from heat sealing, adhesive bonding, or ultrasonic bonding. Finally, the composite nonwoven fabric structure is combined with the prepared absorbent body 1 through subsequent general assembly processes to form the finished absorbent with three-dimensional side panels.
[0054] Based on the above-mentioned absorbent with three-dimensional side septum, this utility model also provides a sanitary product, which is a sanitary napkin, diaper, or nursing pad.
[0055] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. An absorber with three-dimensional spacers, characterized in that: It includes an absorbent body and a leak-proof side panel. The leak-proof side panel is disposed on both sides of the absorbent body. The absorbent body includes at least a top layer, an absorbent core, and a leak-proof bottom layer disposed sequentially from top to bottom. The leak-proof side panel includes at least an upper side panel and a lower side panel disposed in layers. The upper side panel is disposed on the upper surface of the lower side panel in a three-dimensional wave structure. The upper side panel is disposed on the side close to the skin.
2. The absorber with three-dimensional spacers according to claim 1, characterized in that: The lower layer of the partition is configured as a planar structure.
3. The absorber with three-dimensional spacers according to claim 1, characterized in that: The three-dimensional waveform structure is configured as one of the following: continuous or discontinuous wave-shaped, sawtooth-shaped, columnar, trapezoidal, or concave-convex structures along the width direction of the product.
4. The absorber with a three-dimensional spacer according to claim 3, characterized in that: The ripple height of the three-dimensional waveform structure is 0.5mm-3mm, and the distance between the peaks of two adjacent three-dimensional waveform structures is 2mm-5mm.
5. The absorber with three-dimensional spacers according to claim 1, characterized in that: The three-dimensional waveform structure also includes a linear stripe structure extending along the length of the product.
6. The absorber with three-dimensional spacers according to claim 1, characterized in that: The three-dimensional waveform structure also includes a longitudinal waveform structure extending along the length of the product.
7. The absorber with a three-dimensional spacer according to claim 6, characterized in that: The longitudinal waveform structure is configured as a continuous or discontinuous S-shaped or Z-shaped structure along the length of the product.
8. The absorber with three-dimensional spacers according to claim 1, characterized in that: The width ratio of the upper layer of the partition to the lower layer of the partition is 1.1:1-3:
1.
9. The absorber with three-dimensional spacers according to claim 1, characterized in that: The upper layer of the partition is made of hydrophobic nonwoven fabric with a basis weight of 5g-50g.
10. The absorber with a three-dimensional spacer according to claim 1, characterized in that: The lower layer of the partition is a hydrophobic nonwoven fabric with a basis weight of 5g-50g.
11. The absorber with three-dimensional spacers according to claim 1, characterized in that: The connection between the upper and lower layers of the partition is achieved through hot pressing, adhesive bonding, or ultrasonic composite bonding.
12. A sanitary product comprising an absorbent body with a three-dimensional partition as described in any one of claims 1-11, characterized in that: The sanitary products mentioned are sanitary napkins, diapers, or nursing pads.