A bubble organ waist pant-type sanitary article

Abstract

The utility model discloses a kind of bubble organ waist pants type sanitary products, it is related to absorbent article technical field, including outer cladding component, outer cladding component includes outer layer sheet and inner layer sheet, outer layer sheet is in end portion and is inwardly folded to form first return portion to inner layer sheet direction, outer layer sheet top end is outwardly folded to form outer fold portion;First cavity is equipped between outer layer of outer fold portion and inner layer of outer fold portion, second cavity is equipped between outer layer sheet and inner layer sheet, third cavity is equipped between inner layer sheet and first return portion. Outer cladding component includes outer layer sheet and inner layer sheet, intermediate layer sheet is equipped between the two;Several sheet joint parts are equipped on outer cladding component with interval, fourth cavity is formed between outer layer sheet and intermediate layer sheet, fifth cavity is equipped between intermediate layer sheet and inner layer sheet. Through the improvement of outer cladding component, softness and air permeability are improved, stiffness of waist region outside material is increased, both organ effect and bubble effect can be realized.

Description

Technical Field

[0001] This utility model relates to the field of absorbent products technology, specifically to a bubble accordion waistband type sanitary product. Background Technology

[0002] Current accordion waistband products generally use ultrasonic spot welding to fix the inner and outer layers of materials. The lateral spacing of the weld points is only 6-8mm, and after folding, only a single narrow cavity can be formed. The bubble effect is weak, the space for gas retention is insufficient, the ventilation path is short and easily compressed and blocked, leading to the accumulation of moisture and heat. The dense weld points make the material layers fit tightly, the overall feel is relatively stiff, the bending rebound force is large, and there is no fluffy cushioning on the skin side, significantly reducing softness. At the same time, the outer sheet lacks stiffness and is prone to collapse after stretching or absorbing moisture. The folds lose three-dimensional support, the appearance is flat, and the breathability and cushioning performance are further weakened.

[0003] Chinese Patent Publication No. CN219250704U, published on June 27, 2023, discloses a Chinese patent entitled "A Double-Sided Bubble Waistband Pull-Up Pants". The pull-up pants include a long, sheet-like diaper body. At both ends of the diaper body along its length, a layer of inner waistband non-woven fabric is folded and wrapped from the inside to the outside of the diaper body. The inner waistband non-woven fabric and the outer side of the diaper body are covered by a layer of outer waistband non-woven fabric. Both ends of the waistband non-woven fabric are respectively attached to the inner and outer sides of the diaper body. The waistband non-woven fabric wraps around the diaper body once and then closes on both sides along the width of the diaper body to form a waistband. The pull-up pants have only one layer of elastic cavity, resulting in a weak bubble effect and low softness. Utility Model Content

[0004] This utility model provides a bubble accordion waistband type sanitary product, which has multiple cavities, widens the horizontal channels, improves the bubble effect, and enhances breathability and softness.

[0005] A further objective of this invention is to improve the waist structure, thereby increasing the stiffness of the outer material of the waist area and ensuring an accordion effect with a wide spacing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bubble accordion waistband type sanitary product, comprising an outer covering component, the outer covering component comprising an outer sheet and an inner sheet, the outer sheet wrapping around the inner sheet at its end to form a first fold-back portion, the top of the outer sheet folding outward to form an outward folded portion; a first cavity is provided between the outer layer of the outward folded portion and the inner layer of the outward folded portion, a second cavity is provided between the outer sheet and the inner sheet, and a third cavity is provided between the inner sheet and the first fold-back portion.

[0007] Preferably, the longitudinal length of the outward-folded portion is less than the longitudinal length of the outer sheet, and hot melt adhesive is used to fix the inner and outer sheets of the outward-folded layer. The outer sheet wraps inward along the first fold line towards the inner sheet to form a first folded portion with a cavity, and then folds outward along the second fold line at the end of the inner sheet to form the outward-folded portion. Reducing the size of the outward-folded portion reduces the amount of material overlap, and the dotted positioning of the hot melt adhesive prevents the first cavity from collapsing, significantly improving the initial fluffiness and softness to the touch.

[0008] Preferably, a number of sheet joints connect the outer layer and the inner layer of the outward-folding part. These sheet joints are arranged at regular intervals. The sheet joints form segmented support, which limits excessive stretching while preserving sufficient lateral channels, ensuring consistent bubble height and preventing uneven air permeability caused by localized flattening.

[0009] Preferably, a waist elastic member and a waist elastic member are provided between the outer layer sheet and the inner layer sheet. The elastic member is only provided between the outer layer sheet and the inner layer sheet. The elastic force is concentrated in the second cavity, and the first and third cavities are not compressed, maintaining the three-dimensional shape of the multi-layer cavity and enhancing the overall air permeability.

[0010] Preferably, the outer sheet, inner sheet, and first fold-back portion are connected by a plurality of spaced-apart sheet joints. These sheet joints confine the waist elastic member and the waist elastic member within the area between longitudinally adjacent sheet joints. The lateral spacing between adjacent sheet joints is 12-20 mm, preferably 15-18 mm. Even with a wide spacing, the elastic member is still anchored by the sheet joints to prevent retraction and misalignment, ensuring the wide channel remains intact while maintaining both high breathability and elastic stability.

[0011] Preferably, the longitudinal length of the first fold-back section is less than the longitudinal length of the outer sheet. Shortening the fold-back length reduces rigidity and increases the mobility of the fold-back edge.

[0012] A bubble accordion waistband type sanitary product includes an outer covering component, which includes an outer sheet and an inner sheet, with an intermediate sheet between them; the outer covering component is provided with a number of sheet joints at intervals, a fourth cavity is formed between the outer sheet and the intermediate sheet, and a fifth cavity is formed between the intermediate sheet and the inner sheet.

[0013] Preferably, the outer sheet wraps inward toward the inner sheet at its waist region to form a second fold-back section, with an elastic waist member between the second fold-back section and the inner sheet. The longitudinal length of the second fold-back section is less than the longitudinal length of the outer sheet. This double-layer cavity structure significantly expands the gas retention space, blocking the unidirectional conduction path of moisture and heat, resulting in a significantly improved breathability compared to a single-layer design. The end of the second fold-back section is far from the waist opening, reducing the end thickness and preventing the hard edge from irritating the skin, while maintaining the outer stiffness of the waist region to prevent overall sagging.

[0014] Preferably, the sheet joints connect the outer sheet, the middle sheet, and the inner sheet, with a lateral spacing of 12-20mm between adjacent sheet joints. The longitudinal length of the middle sheet is less than that of the outer sheet. The middle sheet terminates at the waist area, lowering the concentration point of material weight and keeping the lower part of the sheet flexible and bendable, balancing stiffness and overall flexibility.

[0015] Preferably, the intermediate layer sheet is positioned in the waist region between the outer and inner layers, and a waist elastic member is provided between the outer and inner layers. The waist elastic member is positioned below the intermediate layer sheet and close to the inner layer sheet. The elastic member moves downwards to avoid the outer stiffness area, preventing the stiffness material from being excessively thinned, ensuring that the outer layer still has the ability to stand upright even with wide spacing, and maintaining clear accordion pleats.

[0016] Preferably, the inner sheet is folded over at the end waist region towards the non-skin contact side to form the middle sheet, with the top of the middle sheet contacting the inner wall of the top of the outer sheet. By using the inner layer's own material to fold out the middle layer, an additional sheet is eliminated, simplifying the process and creating a double-layer bonding point at the top, enhancing the waistline's stiffness without increasing rigidity.

[0017] Beneficial effects: Compared with traditional accordion waistbands, this invention offers a better feel, is softer, and has better breathability. By improving the waistband structure, the stiffness of the outer material in the waist area is increased, forming a "double-layer" protrusion under the action of elastic components, ensuring an accordion effect even with wide spacing. It achieves both an accordion effect and a bubble effect while breaking through traditional spacing limitations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of a structure according to Embodiment 1 of the present utility model.

[0020] Figure 3 This is a schematic diagram of a structure according to Embodiment 1 of the present utility model.

[0021] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0022] Figure 5 This is a schematic diagram of a structure of embodiment 3 of the present invention.

[0023] Figure 6 This is a schematic diagram of a structure of embodiment 3 of the present invention.

[0024] Figure 7 This is a folding diagram of Embodiment 3 of the present invention.

[0025] Reference numerals: 1: Outer sheet; 2: Inner sheet; 3: Middle sheet; 4: Second fold-back section; 5: Sheet joint; 6: Waist elastic member; 7: Waist elastic member; 8: Fourth cavity; 9: Fifth cavity; 10: Outer fold; 11: Outer layer of the outer fold; 12: Inner layer of the outer fold; 13: First fold-back section; 14: First cavity; 15: Second cavity; 16: Third cavity; 17: First fold line; 18: Second fold line; 19: Hot melt adhesive; 20: Outer covering component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To address the issues of poor breathability and softness in traditional accordion waistbands, this application improves breathability and softness by increasing the lateral spacing of the ultrasonic welding points from 6-8mm to 12-20mm. This widens the lateral channels, facilitating the formation of a bubble effect. However, the increased lateral spacing also leads to a slight decrease in the accordion effect. Therefore, the waistband structure is modified to maintain the accordion effect even with a wider spacing. This allows for the achievement of both an accordion and bubble effect while breaking through the limitations of traditional spacing.

[0028] Compared to traditional accordion waistbands, the "bubble accordion waistband" has a wider spacing between the sheet joints 5 (the lateral width of the joint point between adjacent sheets is increased from 6-8mm to 12-20mm). The "bubble accordion waistband" allows the outer covering material 20 to form a fluffy bubble-like structure that folds in a manner similar to an accordion in its natural state.

[0029] Example 1.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the outer packaging component 20 of the sanitary product consists of an outer sheet 1, an inner sheet 2, and a middle sheet 3, which are connected by spaced-apart sheet joints 5 to form a layered cavity structure. A fourth cavity 8 is formed between the outer sheet 1 and the middle sheet 3, and a fifth cavity 9 is formed between the middle sheet 3 and the inner sheet 2. The double-layer cavity structure significantly expands the gas retention space. The sheet joints 5 connect the outer, middle, and inner sheets 2 simultaneously, and the lateral spacing between adjacent joints is 12-20mm. This wide spacing design provides ample channels for air circulation, and combined with the three-dimensional space of the double-layer cavity, further enhances the heat dissipation effect.

[0031] like Figure 2 As shown, the outer sheet 1 wraps inward toward the inner sheet 2 at the waist area to form a second fold-back section 4. The longitudinal length of the second fold-back section 4 is less than the longitudinal length of the outer sheet 1. This design keeps the end of the second fold-back section 4 away from the waistline, reducing the material thickness at the waist edge and avoiding the skin irritation caused by the hard edge in traditional fold-back designs, thus improving wearing comfort. Simultaneously, a waist elastic member 6 is provided between the second fold-back section 4 and the inner sheet 2. The contraction force of the elastic member allows the fold-back section to naturally form a three-dimensional support, maintaining the stiffness of the outer side of the waist area, preventing the waistband from sagging, and ensuring the stability of the accordion structure during activity.

[0032] The layout of the intermediate sheet 3 balances stiffness and flexibility. The intermediate sheet 3 is positioned in the waist area between the outer sheet 1 and the inner sheet 2. Its longitudinal length is shorter than that of the outer sheet 1, and it ends in the waist area. This design reduces the concentration point of material weight below the waist, keeping the lower part of the waist soft and flexible, avoiding the stiffness caused by the stacking of multiple sheets, and ensuring the stiffness of the waist while taking into account the overall flexibility.

[0033] like Figure 2 As shown, the placement of the elastic components further optimizes the balance between stiffness and the accordion effect. A waist-length elastic component 7 is located between the outer sheet 1 and the inner sheet 2, positioned below the middle sheet 3 and close to the inner sheet 2. This downward placement avoids the stiffness zone on the outer side of the waist, preventing excessive thinning of the stiff material by elastic contraction. This ensures that the outer sheet 1 retains its upright position even with wide spacing, maintaining the clear shape of the accordion pleats. A waist-length elastic component 6 is positioned between the second fold-back section 4 and the inner sheet 2, working in conjunction with the waist-length elastic component 7 to form tiered elastic support in the waist area. This ensures a snug fit between the waist and the body while providing continuous tension to the accordion structure, making the "double-layer" convex effect more pronounced.

[0034] In actual wear, the synergistic effect of the multi-layer structure demonstrates significant advantages. When the elastic components contract, the outer sheet 1 forms upright accordion pleats under the support of stiffness. The wide-spaced sheet joints 5 ensure unobstructed channels between the pleats, and together with the air cushioning of the fourth and fifth cavities 9, a distinct bubble effect is formed. The presence of the middle sheet 3 makes the stress between the outer and inner layers more even, avoiding bubble collapse caused by excessive local stretching and ensuring that the height of the protrusions is consistent in all parts. The inner sheet 2 forms the middle layer by wrapping, making the material thickness at the waist moderate. It is neither too thin and loses its stiffness, nor too thick and creates a feeling of constriction, while reducing friction on the skin contact side and improving overall softness.

[0035] Compared to traditional accordion waistbands, this design offers significant improvements in feel and breathability. The double-layered cavity structure greatly increases airflow, allowing for rapid dissipation of moisture and heat, reducing stuffiness on the skin. The flexible overlay of multiple layers of sheets and the wide spacing reduce friction between materials, resulting in a softer and more delicate feel. The stiffness of the outer side of the waist area is enhanced by elastic components, creating a clear "double-layer" bulge even with wide spacing. This achieves an accordion effect that breaks through traditional spacing, while the combination of cavities and pleats creates a full, bubbly effect. These two effects work together to make the waistband more visually three-dimensional and functionally more ergonomically designed.

[0036] In terms of manufacturing process, the design of the inner sheet 2 folding to form the middle layer reduces the number of parts, simplifies the assembly process, and reduces production errors. The regular arrangement of the sheet joints 5 ensures precise positioning of the multi-layer structure during processing, ensuring stable cavity shape and avoiding uneven breathability caused by interlayer misalignment. The downward placement of the elastic components, without affecting the fit, provides sufficient stretching space for the outer stiffening material, allowing the product to maintain the stability of the accordion and bubble effect after multiple stretchings, thus extending its service life.

[0037] In summary, this invention achieves a perfect balance between bubble effect, breathability, and stiffness by constructing a double-layer cavity with an intermediate sheet 3, optimizing the layout of elastic components, and designing the sheet folds. The accordion effect and bubble effect presented in synergy under wide spacing not only enhance the visual appeal of the product but also significantly improve wearing comfort and functionality, providing an innovative solution for the waistband design of trouser-style hygiene products.

[0038] Example 2.

[0039] like Figure 4As shown, the other structures of Embodiment 2 are the same as those of Embodiment 1. The only difference is that the inner sheet 2 is folded over the non-skin contact side at the end waist area to form the middle sheet 3. This integrated design uses the material of the inner layer itself to fold out the middle layer, eliminating the need for additional sheets. This simplifies the production process and allows the top of the middle sheet 3 to be in close contact with the inner wall of the top of the outer sheet 1, forming a double-layer bonding point. This enhances the stiffness of the waist without increasing the hardness, maintaining the softness to the touch.

[0040] Example 3.

[0041] like Figure 5 and Figure 6 As shown, the outer covering component 20 of this hygiene product is the core structure, and also includes an inner component fixed inside the outer covering material. The outer covering component 20 consists of an outer sheet 1 and an inner sheet 2, which are folded and joined to form multiple cavities. The outer sheet 1 wraps around the inner sheet 2 at its end to form a first fold-back portion 13, and then folds outward along the second fold line 18 at the end of the inner sheet 2 to form an outward fold portion 10. This folding method naturally forms three cavities in the outer covering component 20: a first cavity 14 between the outer layer 11 and the inner layer 12 of the outward fold portion, a second cavity 15 between the outer sheet 1 and the inner sheet 2, and a third cavity 16 between the inner sheet 2 and the first fold-back portion 13. The presence of multiple cavities significantly increases the three-dimensional space in the waist area, providing ample channels for air circulation, and at the same time, the air cushioning within the cavities enhances the softness of the product when in contact with the skin.

[0042] like Figure 5 As shown, the design of the outward-folding section 10 balances material efficiency and cavity stability. The longitudinal length of the outward-folding section 10 is less than the longitudinal length of the outer sheet 1. This dimensional control reduces material overlap, avoids stiffness caused by multiple layers, and makes the waistband fit the body curves more closely. The inner layer 12 of the outward-folding section is fixed to the outer sheet 1 with hot melt adhesive 19. The hot melt adhesive 19, applied in a dotted pattern, ensures that the shape of the first cavity 14 does not collapse, while also preventing excessive sealing of the cavity, thus preserving sufficient air circulation space and significantly improving the initial fluffiness and softness to the touch.

[0043] The sheet joints 5 are key structures for maintaining the cavity shape and lateral channels. Several sheet joints 5 connect the outer layer 11 and the inner layer of the outward-folding part. These joints are regularly spaced to form segmented support. When the product is worn or during activity, the sheet joints 5 limit excessive stretching of the outward-folding part 10, preventing the cavity from being flattened, while also maintaining sufficient lateral channels to ensure consistent bubble height in all areas and avoid uneven breathability caused by localized collapse. The outer sheet 1, inner sheet 2, and first fold-back part 13 are also connected by spaced-apart sheet joints 5. These joints confine the waist elastic member 7 and waist elastic member 6 within longitudinally adjacent areas, preventing the elastic members from retracting and misaligning during expansion and contraction.

[0044] like Figure 3 As shown, the layout of the elastic components further optimizes the cavity function and elastic force distribution. The waist elastic components 7 and 6 are only located within the second cavity 15 between the outer sheet 1 and the inner sheet 2, concentrating the elastic force in this area. The first cavity 14 and the third cavity 16, lacking the compression effect of the elastic components, maintain their three-dimensional shape, avoiding the cavity collapse problem caused by elastic material covering in traditional designs, thus enhancing overall breathability. The lateral spacing of the adjacent sheet joints 5 is 12-20mm, preferably 15-18mm. This wide spacing design ensures unobstructed lateral channels, and the anchoring effect of the sheet joints 5 on the elastic components maintains elastic stability even with a wide spacing, balancing high breathability and reliable fit.

[0045] The dimensions of the first fold-back section 13 are also designed to prioritize softness and freedom of movement. The longitudinal length of the first fold-back section 13 is shorter than that of the outer sheet 1. This shortened fold-back length reduces the rigidity of the sheet layers, allowing for greater mobility at the fold-back edges. During wear, this design allows the waist to naturally expand and contract with body movement, avoiding the feeling of restriction caused by an excessively wide fold-back section, while also reducing friction against the skin and improving wearing comfort.

[0046] like Figure 6 and Figure 7 As shown, the folding sequence of the outer sheet 1 is the basis for forming multiple cavities. The outer sheet 1 first wraps inward along the first fold line 17 to form the first folded portion 13, at which point the inner sheet 2 and the first folded portion 13 naturally form the third cavity 16; then it folds outward along the second fold line 18 to form the outward folded portion 10, so that the inner and outer layers of the outward folded portion 10 form the first cavity 14; while the outer sheet 1 and the inner sheet 2 together form the second cavity 15. This folding method forms three cavities in one process, which is simple and efficient, while ensuring that each cavity is independent yet works synergistically to improve the bubble effect of the product.

[0047] In practical use, the advantages of this hygiene product are particularly evident. The multi-layered cavities continuously provide airflow space between the skin and the product, reducing stuffiness; the wide lateral channels maintained by the sheet joints 5 ensure free airflow, further enhancing breathability. Elastic components are concentrated in the second cavity 15, allowing the waistband to fit snugly around the waist without compressing other cavities, maintaining overall fluffiness and softness. During body movement, the regularly arranged sheet joints 5 prevent cavity deformation, ensuring a long-lasting bubble effect, while the short length design of the first fold-back section 13 increases the waistband's freedom of movement, reducing marks and discomfort.

[0048] The improved waistband structure enhances the stiffness of the outer material. The folding design of the outward-folding portion 10 and the first fold-back portion 13 creates a natural support structure for the outer sheet 1 in the waist area. Combined with the fixing effect of the sheet joint portion 5, the accordion effect is maintained even with wide spacing. This stiffness ensures that the waistband will not collapse due to gravity or movement during wear, maintaining its three-dimensional shape at all times. This enhances the product's aesthetics and guarantees functional stability.

[0049] This invention achieves a simultaneous improvement in bubble effect, breathability, and softness through a multi-layer cavity design, regularly arranged sheet joints 5, centrally located elastic components, and optimized folding dimensions. Improvements to the waist structure ensure a stable accordion effect even with wide spacing, resulting in a good balance between comfortable wear and reliable functionality. It is suitable for waistband designs in various types of trouser-style hygiene products.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A bubble accordion waistband type sanitary product, characterized in that, The outer covering assembly includes an outer sheet and an inner sheet. The outer sheet wraps around the inner sheet at its end to form a first fold-back portion, and the top of the outer sheet is folded outward to form an outward fold-out portion. A first cavity is provided between the outer layer of the outward-folding part and the inner layer of the outward-folding part, a second cavity is provided between the outer sheet and the inner sheet, and a third cavity is provided between the inner sheet and the first folded-back part.

2. The bubble accordion waistband type sanitary product according to claim 1, characterized in that, The longitudinal length of the outward-folded part is less than the longitudinal length of the outer sheet, and hot melt adhesive is used to fix the inner layer of the outward-folded layer to the outer sheet.

3. The bubble accordion waistband type sanitary product according to claim 1, characterized in that, Several sheet joints connect the outer layer and the inner layer of the outward-turned part.

4. The bubble accordion waistband type sanitary product according to claim 1, characterized in that, An elastic waist component and a waist elastic component are provided between the outer sheet and the inner sheet.

5. The bubble accordion waistband type sanitary product according to claim 3, characterized in that, The outer sheet, the inner sheet, and the first fold-back section are connected by several spaced sheet joints, with a lateral spacing of 12-20 mm between adjacent sheet joints.

6. A bubble accordion waistband type sanitary product, characterized in that, It includes an outer sheath assembly, which comprises an outer sheet and an inner sheet, with an intermediate sheet between them; The outer covering component has several sheet joints spaced apart, forming a fourth cavity between the outer sheet and the middle sheet, and a fifth cavity between the middle sheet and the inner sheet.

7. A bubble accordion waistband type sanitary product according to claim 6, characterized in that, The outer sheet wraps inward toward the inner sheet at the waist region to form a second fold-back section, and a waist elastic member is provided between the second fold-back section and the inner sheet.

8. The bubble accordion waistband type sanitary product according to claim 7, characterized in that, The sheet joints connect the outer sheet, the middle sheet, and the inner sheet, with a lateral spacing of 12-20 mm between adjacent sheet joints.

9. A bubble accordion waistband type sanitary product according to claim 6 or 8, characterized in that, The middle layer sheet is positioned between the outer and inner layers in the corresponding waist area, and an elastic waist member is provided between the outer and inner layers.

10. A bubble accordion waistband type sanitary product according to claim 6 or 8, characterized in that, The inner sheet is folded over the non-skin contact side at the end waist area to form the middle sheet, and the top of the middle sheet is in contact with the inner wall of the top of the outer sheet.

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