Absorption product with bubble cavities
By employing a composite structure bubble cavity design in the diaper waistband, the problems of skin pressure and poor breathability caused by elastic spandex fibers are solved, achieving greater comfort and breathability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OBEE PERSONAL CARE PRODUCTS (FOSHAN) CO LTD
- Filing Date
- 2025-01-09
- Publication Date
- 2026-05-05
AI Technical Summary
The elastic spandex fibers in the waistband structure of existing diapers cause skin pressure, redness, and allergies. Furthermore, the improved cavity structure does not provide significant cushioning, affecting breathability and reducing comfort.
The bottom layer features a composite structure that creates bubble cavities. Through the intermittent bonding of the adhesive layer and the foaming layer, combined with the design of elastic spandex yarn, friction between the waistband and the skin is reduced, increasing breathability and comfort.
It effectively reduces friction between the waistband and the skin, increases breathability, improves comfort, and prevents adhesive penetration from affecting the performance of the pants.
Smart Images
Figure CN224193667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of absorbent products technology, specifically to an absorbent product with a bubble cavity. Background Technology
[0002] Diapers can generally be divided into two main categories: pull-up diapers and adhesive diapers. Pull-up diapers typically use spandex yarn as the waistband structure, utilizing its elasticity to tighten the diaper around the user's waist for wearing. However, the elastic spandex yarn has a fine thread structure, which can create a strong pressure on the user's skin. Over time, this can result in noticeable marks, and for infants, it may even cause skin redness and allergies.
[0003] Currently, there are various types of pull-up pants on the market with improved waistband structures. These pants use a structure with multiple cavities distributed within the waistband to cushion the elastic contraction of the elastic fibers inside. However, most waistbands with this cavity structure do not provide significant cushioning and may even affect breathability, resulting in low comfort during use. Utility Model Content
[0004] To address the technical deficiencies in the background art, this utility model proposes an absorbent product with a bubble cavity, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:
[0005] An absorbent product with a bubble cavity includes an absorbent area, a front waist area and a rear waist area disposed at the ends of the absorbent area. The absorbent area includes a surface layer, a bottom layer and an absorbent core sandwiched between the surface layer and the bottom layer. The ends of the surface layer and the bottom layer extend away from the absorbent core to form the front waist area and the rear waist area. The bottom layer is composed of a first bottom layer and a second bottom layer sandwiched with elastic spandex yarn, wherein at least one of the first bottom layer and the second bottom layer is a composite structure.
[0006] The bottom layer near the surface layer is a composite structure. The interlayer of the composite structure is intermittently bonded to form a bubble cavity. Several first elastic spandex filaments are sandwiched between the first bottom layer and the second bottom layer, corresponding to the positions of the front waist area and the back waist area.
[0007] The composite structure is formed by bonding a layer with a weight of M1 and foaming a layer with a weight of M2. The first elastic spandex filament is attached to the outside of the bonding layer, wherein 3gsm≤M1<6gsm and 6gsm≤M2≤20gsm.
[0008] As an improvement to the above scheme, the bottom layer includes a first bottom layer on the side closer to the top layer and a second bottom layer on the side farther from the top layer. The first bottom layer is a composite structure, and the second bottom layer is a single-layer structure. The basis weight of the second bottom layer is M3, where 10gsm≤M3≤30gsm.
[0009] As an improvement to the above solution, a second elastic spandex filament is sandwiched on both sides of the absorption area in the width direction. The second elastic spandex filament matches the side curvature of the absorption area, and the ends of the second elastic spandex filament extend into the front waist area and the back waist area respectively along the length direction of the absorption area.
[0010] As an improvement to the above solution, the adhesive layer and the foaming layer are bonded together to form multiple adhesive strips. The adhesive strips are spread out along the width direction of the bottom layer and arranged at equal intervals along the length direction of the bottom layer, forming bubble cavities between adjacent adhesive strips.
[0011] As an improvement to the above solution, the first elastic spandex yarn is aligned with the width direction of the bottom layer and is evenly spaced along the width direction of the front waist area and the back waist area. After being stretched, the first elastic spandex yarn is bonded between the first bottom layer and the second bottom layer.
[0012] As an improvement to the above solution, the end of the second bottom layer is folded inward, and the second bottom layer is bonded and fixed to the end face of the top layer facing the human body.
[0013] As an improvement to the above scheme, both the first and second layers are composite structures, and the first and second layers have the same weight.
[0014] As an improvement to the above solution, the outer edge of the surface layer is bonded and fixed to the bottom layer, the absorbent core is bonded to the end face of the bottom layer facing the surface layer and aligned with the central axis of the absorption area along its length, and the ends of the absorbent core extend into the front waist area and the rear waist area respectively.
[0015] The beneficial effects of this utility model are as follows: the foaming layer and the adhesive layer form a bubble cavity through intermittent composite, which can effectively reduce the friction between the waistband structure and the human body. The gap between two adjacent bubble cavities can play a role in ventilation, preventing the waistband from completely fitting the human body and increasing the comfort during use. In the bottom layer, the weight of the foaming layer and the second bottom layer is greater than that of the adhesive layer, which can prevent the glue of the adhesive layer from penetrating to the end face of the bubble cavity and the top layer that is in contact with the human body, thus affecting the performance of the pants. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the thickness direction structure of the first embodiment of this utility model.
[0017] Figure 2 This is a schematic diagram of the thickness direction structure before the end is folded in the first embodiment of this utility model.
[0018] Figure 3 This is a schematic diagram of the thickness direction structure after the end is folded in the first embodiment of this utility model.
[0019] Figure 4 This is a schematic diagram showing the positions of the absorption area, the front waist area, and the rear waist area in the first embodiment of this utility model.
[0020] Figure 5 This is a schematic diagram of the thickness direction structure of the second embodiment of this utility model.
[0021] Figure 6 This is a schematic diagram of the thickness direction structure after the end is folded in the second embodiment of this utility model.
[0022] Figure 7 This is a schematic diagram of the distribution structure of the foaming layer, adhesive layer and first elastic spandex filament of this utility model.
[0023] Figure 8 This is a schematic diagram of the top and bottom layer distribution structure of this utility model.
[0024] Among them: absorption zone 1, front waist zone 2, rear waist zone 3, surface layer 4, bottom layer 5, first bottom layer 501, second bottom layer 502, foaming layer 503, adhesive layer 504, absorption core 6, bubble cavity 7, first elastic spandex filament 8, adhesive tape 9, second elastic spandex filament 10. Detailed Implementation
[0025] 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.
[0026] like Figure 1 , Figure 2 and Figure 3 As shown, an absorbent product with a bubble cavity includes an absorbent area 1, a front waist area 2 and a rear waist area 3 disposed at the ends of the absorbent area 1. The absorbent area 1 includes a surface layer 4, a bottom layer 5 and an absorbent core 6 sandwiched between the surface layer 4 and the bottom layer 5. The ends of the surface layer 4 and the bottom layer 5 extend away from the absorbent core 6 to form the front waist area 2 and the rear waist area 3. The bottom layer 5 is composed of a first bottom layer 501 and a second bottom layer 502 sandwiched with elastic spandex yarn, wherein at least one of the first bottom layer 501 and the second bottom layer 502 is a composite structure.
[0027] The bottom layer 5 is a composite structure on the side near the top layer 4. The interlayer of the composite structure is intermittently bonded to form a bubble cavity 7. Several first elastic spandex filaments 8 are sandwiched between the first bottom layer 501 and the second bottom layer 502 at the positions corresponding to the front waist area 2 and the back waist area 3.
[0028] The composite structure is formed by bonding layer 504 with a weight of M1 and foaming layer 503 with a weight of M2. The first elastic spandex filament 8 is attached to the outside of the bonding layer 504, wherein 3gsm≤M1<6gsm and 6gsm≤M2≤20gsm.
[0029] Reference Figure 1 , Figure 2 and Figure 3 In this utility model, the waistband structure has a front waistband 2 and a back waistband 3 at the ends of the absorption area 1. The front waistband 2 is integrally formed by extending one end of the surface layer 4 and the bottom layer 5, and the back waistband 3 is integrally formed by extending the other end of the surface layer 4 and the bottom layer 5. The extension length of both ends of the bottom layer 5 is not less than the extension length of the surface layer 4. The bubble cavity 7 reduces the friction between the inner layer of the waistband and the human body. The bubble cavity 7 forms undulations on the end face of the waistband structure near the human body, preventing the inner side of the waistband from completely sticking to the user's skin. Breathing is achieved through the gap between two adjacent bubble cavities 7, increasing the breathability of the absorbent product, avoiding stuffiness during use, and enhancing comfort.
[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 It should be noted that in the first embodiment of this utility model, the bottom layer 5 includes a first bottom layer 501 and a second bottom layer 502. The first bottom layer 501 is a composite structure, and the second bottom layer 502 is a single-layer structure. The first bottom layer 501 is composed of a foaming layer 503 on the side close to the surface layer 4 and an adhesive layer 504 on the side away from the surface layer 4. The foaming layer 503 and the adhesive layer 504 are intermittently bonded to form bubble cavities 7. An adhesive strip 9 is formed by bonding the end face of the first bottom layer 501 or the end face of the second bottom layer 502 through an adhesive process. The adhesive strip 9 is scraped and extended along the width direction of the bottom layer 5 and is evenly spaced along the length direction of the bottom layer 5, thereby forming a plurality of bubble cavities 7 between the foaming layer 503 and the adhesive layer 504.
[0031] Specifically, the adhesive layer 504 has a first elastic spandex filament 8 bonded to the end face facing the second bottom layer 502. After being stretched, the first elastic spandex filament 8 is bonded and sandwiched between the first bottom layer 501 and the second bottom layer 502. After bonding, the first elastic spandex filament 8 shrinks, causing the first bottom layer 501 to shrink synchronously in the width direction, thereby forming a plurality of bubble cavities 7 extending along the length direction of the absorbent product on the bottom end face of the bottom layer 5.
[0032] Reference Figure 5 and Figure 6 In the second embodiment of this utility model, the first bottom layer 501 and the second bottom layer 502 are both composite structures, the first bottom layer 501 and the second bottom layer 502 have the same weight, and the second bottom layer 502 and the first bottom layer 501 are symmetrically arranged along the thickness direction of the first elastic spandex filament 8.
[0033] Reference Figure 3 and Figure 6 It should be noted that, in the third embodiment of this utility model, the end of the second bottom layer 502 in the length direction is folded over to cover the end of the top layer 4 on the side facing the human body, forming undulations on the end face of the waistband structure near the human body, thus preventing the inner side of the waistband from completely fitting into the user's skin and increasing the breathability of the waistband.
[0034] Furthermore, in the above scheme, the bottom layer 5 includes a first bottom layer 501 on the side close to the top layer 4 and a second bottom layer 502 on the side away from the top layer 4. The first bottom layer 501 is a composite structure, and the second bottom layer 502 is a single-layer structure. The basis weight of the second bottom layer 502 is M3, where 10gsm≤M3≤30gsm.
[0035] Furthermore, in the above scheme, a second elastic spandex filament 10 is sandwiched on both sides of the absorption area 1 in the width direction. The second elastic spandex filament 10 matches the side curvature of the absorption area 1, and the ends of the second elastic spandex filament 10 extend into the front waist area 2 and the back waist area 3 respectively along the length direction of the absorption area 1.
[0036] Reference Figure 4 It should be noted that the two sides of the absorption area 1 in the width direction are the leg circumference area, and the second elastic spandex filament 10 is provided in the length direction of the leg circumference area. The second elastic spandex filament 10 is sandwiched between the first bottom layer 501 and the second bottom layer 502. After being stretched, the second elastic spandex filament 10 is bonded to the first bottom layer 501. After bonding, the second elastic spandex filament 10 shrinks, so that the bubble cavity 7 corresponding to the leg circumference area forms a wrinkled band. The bubble cavity 7 in the leg circumference area can reduce the pressure on the user's leg circumference and improve the comfort of the leg circumference during use.
[0037] Reference Figure 1 Furthermore, in the above scheme, an adhesive strip 9 formed by bonding through an adhesive process is provided on either side end face between the adhesive layer 504 and the foaming layer 503. The adhesive strip 9 is spread along the width direction of the bottom layer 5 and is arranged at equal intervals along the length direction of the bottom layer 5, and bubble cavities 7 are formed between adjacent adhesive strips 9.
[0038] Furthermore, in the above scheme, the first elastic spandex yarn 8 is aligned with the width direction of the bottom layer 5 and is arranged at equal intervals along the width direction of the front waist area 2 and the back waist area 3. After being stretched, the first elastic spandex yarn 8 is bonded between the first bottom layer 501 and the second bottom layer 502.
[0039] Reference Figure 3 and Figure 6 Furthermore, in the above scheme, the end of the second bottom layer 502 is folded inward, and the second bottom layer 502 is bonded and fixed to the end face of the top layer 4 facing the human body.
[0040] Furthermore, in the above scheme, the outer edge of the surface layer 4 is bonded and fixed to the bottom layer 5, the absorbent core 6 is bonded to the end face of the bottom layer 5 facing the surface layer 4 and aligned with the central axis of the absorption area 1 in the length direction, and the ends of the absorbent core 6 extend into the front waist area 2 and the rear waist area 3 respectively.
[0041] It should be noted that in the bottom layer, the weight of the foaming layer 503 and the second bottom layer 502 is greater than that of the adhesive layer 504, which can prevent the glue of the adhesive layer 504 from penetrating to the end face of the bubble cavity 7 and the surface layer 4 on the side that is in contact with the human body, thus affecting the performance of the pants.
[0042] 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. An absorbent article having bubble cavities, characterized in that, It includes an absorption area (1), a front waist area (2) and a rear waist area (3) disposed at the end of the absorption area (1). The absorption area (1) includes a surface layer (4), a bottom layer (5) and an absorption core (6) sandwiched between the surface layer (4) and the bottom layer (5). The ends of the surface layer (4) and the bottom layer (5) extend away from the absorption core (6) to form the front waist area (2) and the rear waist area (3). The bottom layer (5) is composed of a first bottom layer (501) and a second bottom layer (502) sandwiched with elastic spandex yarn. At least one of the first bottom layer (501) and the second bottom layer (502) is a composite structure. The bottom layer (5) is a composite structure on the side near the top layer (4). The interlayer of the composite structure is intermittently bonded to form a bubble cavity (7). Several first elastic spandex filaments (8) are sandwiched between the first bottom layer (501) and the second bottom layer (502) at positions corresponding to the front waist area (2) and the back waist area (3). The composite structure is formed by bonding layer (504) with a weight of M1 and foaming layer (503) with a weight of M2. The first elastic spandex filament (8) is attached to the outside of the bonding layer (504), wherein 3gsm≤M1<6gsm and 6gsm≤M2≤20gsm.
2. The absorbent article with bubble cavities according to claim 1, characterized in that, The bottom layer (5) includes a first bottom layer (501) on the side close to the top layer (4) and a second bottom layer (502) on the side away from the top layer (4). The first bottom layer (501) is a composite structure, and the second bottom layer (502) is a single-layer structure. The weight of the second bottom layer (502) is M3, where 10gsm≤M3≤30gsm.
3. The absorbent article with bubble cavities according to claim 1, characterized in that, The absorption area (1) is sandwiched on both sides in the width direction with a second elastic spandex filament (10). The second elastic spandex filament (10) matches the side arc of the absorption area (1). The ends of the second elastic spandex filament (10) extend into the front waist area (2) and the back waist area (3) respectively along the length direction of the absorption area (1).
4. The absorbent article with bubble cavities according to claim 1, characterized in that, The adhesive layer (504) and the foaming layer (503) are bonded together to form a plurality of adhesive strips (9). The adhesive strips (9) are spread along the width direction of the bottom layer (5) and are arranged at equal intervals along the length direction of the bottom layer (5). Bubble cavities (7) are formed between adjacent adhesive strips (9).
5. The absorbent article with bubble cavities according to claim 1, characterized in that, The first elastic spandex filament (8) is aligned with the width direction of the bottom layer (5) and is laid out at equal intervals along the width direction of the front waist area (2) and the back waist area (3). After being stretched, the first elastic spandex filament (8) is bonded between the first bottom layer (501) and the second bottom layer (502).
6. The absorbent article with bubble cavities according to claim 1, characterized in that, The end of the second bottom layer (502) is folded inward, and the second bottom layer (502) is bonded and fixed to the end face of the top layer (4) facing the human body.
7. The absorbent article with bubble cavities according to claim 1, characterized in that, Both the first bottom layer (501) and the second bottom layer (502) are composite structures, and the first bottom layer (501) and the second bottom layer (502) have the same weight.
8. The absorbent article with bubble cavities according to claim 1, characterized in that, The outer edge of the surface layer (4) is bonded and fixed to the bottom layer (5). The absorbent core (6) is bonded to the end face of the bottom layer (5) facing the surface layer (4) and aligned with the central axis of the absorption area (1) along its length. The ends of the absorbent core (6) extend into the front waist area (2) and the rear waist area (3), respectively.