Disposable diapers with anti-sewage front-flow design

Abstract

This utility model relates to the field of personal care products technology, specifically a front-flow design structure for disposable diapers to prevent soiling. It includes a diaper body and an elastic barrier band structure positioned on the inner absorbent layer of the diaper body. The elastic barrier band structure starts from the outer side of one waist, extends through the groin area on the same side to the perineum, and then extends to the outer side of the other waist. This utility model, by setting the elastic barrier band structure in a three-dimensional "∞" shape, can divide the interior of the diaper body into independent rear and front areas. This innovative design effectively prevents feces and other stains from overflowing from the rear area to the front, avoiding the soiling spread problem common in traditional diapers. For example, during use by infants or adults, when excrement accumulates in the rear area, the elastic barrier band structure acts as a barrier.

Description

Technical Field

[0001] This utility model relates to the field of personal care products technology, specifically to a design structure for disposable diapers that prevents soiling from overflowing. Background Technology

[0002] Throughout the development of diaper products, traditional diaper designs have presented numerous problems that have troubled users. As people's living standards improve, their requirements for the hygiene, comfort, and fit of diapers have become increasingly stringent, highlighting the shortcomings of existing technologies.

[0003] From a hygiene perspective, traditional diapers cannot effectively prevent feces and other stains from the back area from leaking to the front. When used by infants or adults, excrement accumulated at the back can easily spread throughout the diaper, contaminating the front area as well. This not only reduces the feeling of cleanliness but also greatly increases the chance of prolonged skin contact with stains, leading to various skin problems such as rashes and itching. This is especially harmful to infants with delicate skin and the elderly with limited mobility. In terms of comfort, ordinary diapers cannot adapt to the complex and varied movements of the human body. Whether it is the active daily life of infants or the normal walking, bending, and turning of adults, diapers often become loose and shifty or excessively tight due to a lack of elasticity in the material or an unreasonable structural design, seriously affecting the wearing experience and reducing the user's freedom of movement in daily life. Utility Model Content

[0004] The purpose of this invention is to provide a design structure for disposable diapers that prevents soiling from overflowing, in order to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a disposable diaper with a front-flow anti-stain design structure, including a diaper body and an elastic barrier band structure set on the inner absorbent layer of the diaper body. The elastic barrier band structure starts from the outer side of one waist, extends through the groin area of ​​the same side to the perineum, then extends to the outer side of the other waist, then turns back through the groin area of ​​the other side to the perineum, and finally returns to the outer side of the waist on the starting side, in a three-dimensional "∞" shape. The interior of the diaper body is divided into an independent rear area and a front area, and the absorbent layer remains continuous and uninterrupted below the elastic barrier band structure.

[0006] Preferably, the elastic barrier strip structure is made of an elastic material, and the elastic elongation of the elastic material is in the range of 20% to 25%.

[0007] Preferably, the elastic barrier band structure is connected to the diaper body by hot pressing, ultrasonic welding, or strong adhesive.

[0008] Preferably, the width of the elastic barrier band structure in the perineum and groin area is greater than its width in the outer waist area, wherein the width in the perineum and groin area is 3 mm and the width in the outer waist area is 3 mm.

[0009] Preferably, the surface of the elastic barrier strip structure is provided with an anti-slip texture, which is a raised granular, striped, or wavy texture, with a height or depth in the range of 0.2 mm to 0.5 mm, to prevent the elastic barrier strip structure from shifting during use.

[0010] Preferably, the elastic barrier strip structure has a waterproof coating on the side that contacts the absorbent layer, and the thickness of the waterproof coating is in the range of 4.5 micrometers to 8 micrometers.

[0011] Preferably, the diaper body has a reinforcing layer in the area through which the elastic barrier band structure passes, and the reinforcing layer is made of a high-strength, soft material.

[0012] Preferably, the elastic barrier band structure is provided with an adjustment device in the outer waist region, the adjustment device being able to adjust the tightness of the elastic barrier band structure in the outer waist region.

[0013] This utility model provides an improved design structure for preventing soiled diapers from overflowing, which, compared with the prior art, has the following improvements and advantages:

[0014] Firstly, this invention utilizes an elastic barrier band structure arranged in a three-dimensional "∞" shape to divide the interior of the diaper into independent rear and front areas. This innovative design effectively prevents feces and other stains from overflowing from the rear area to the front, avoiding the common problem of stain spread in traditional diapers. For example, when excrement accumulates in the rear area during use by infants or adults, the elastic barrier band structure acts as a barrier, firmly confining the stains to the rear area due to its continuous and close fit to the body, thus keeping the front area clean and dry. Simultaneously, the waterproof coating on the side of the elastic barrier band structure that contacts the absorbent layer further enhances its anti-permeability, ensuring that liquids do not penetrate to the front area through the elastic barrier band structure. This anti-stain overflow effect greatly improves the hygiene of the diaper, reducing skin problems such as rashes and itching caused by stains contacting the skin, providing users with a healthier and more comfortable experience.

[0015] Secondly, the elastic barrier band structure of this invention is made of elastic material with an elastic elongation rate in the range of 20% to 25%. This allows it to fit snugly against the human body under normal use. Whether it is during the active period of an infant or the daily activities of an adult, the elastic barrier band structure can naturally expand and contract with the body's movements, always maintaining a good fit without being too loose or too tight. Moreover, the width of the elastic barrier band structure in the perineal and groin areas is designed to be greater than that in the outer waist area, which better conforms to the physiological structure of the human body, further improving fit and comfort. In addition, the anti-slip texture on the surface of the elastic barrier band structure effectively prevents it from shifting during use, ensuring that it is always in the optimal protective position. At the same time, the adjustment device in the outer waist area can flexibly adjust the tightness of the elastic barrier band structure on the outer waist according to the waist size needs of different users. This not only enhances the comfort of wearing the diaper but also improves the versatility of the product, meeting the needs of users with different body sizes and expanding the scope of application of the product. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Diaper body; 2. Elastic barrier band structure; 3. Anti-slip texture; 4. Adjustment device. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model improves the design structure of the disposable diaper to prevent soiling and overflow. The technical solution of this utility model is as follows:

[0023] like Figure 1 - Figure 2As shown, the disposable diaper's anti-sewage overflow design structure includes a diaper body 1 and an elastic barrier band structure 2 set on the inner absorbent layer of the diaper body 1. The elastic barrier band structure 2 starts from the outer side of one waist, passes through the groin area of ​​the same side, extends to the perineum, then extends to the outer side of the other waist, then turns back through the groin area of ​​the other side to the perineum, and finally returns to the outer side of the waist from the starting point, forming a three-dimensional "∞" shape. The interior of the diaper body 1 is divided into an independent rear area and a front area, and the absorbent layer remains continuous and unblocked below the elastic barrier band structure 2.

[0024] Furthermore, the elastic barrier band structure 2 is made of elastic material with an elastic elongation rate within the range of 20% to 25%. The elastic barrier band structure 2 uses a specific elastic material, and its elastic elongation rate is precisely controlled within this range. In actual use, when infants crawl, run, and jump freely, or when adults walk, bend over, or turn around normally, the elastic barrier band structure 2, thanks to this characteristic, acts like a flexible, close-fitting protective layer, conforming closely to the curves of the human body and naturally stretching. It will not become ineffective due to excessive looseness, nor will it chafe the skin due to excessive tightness, ensuring optimal protection at all times and greatly improving the comfort and safety of the user experience.

[0025] Furthermore, the elastic barrier band structure 2 is connected to the diaper body 1 via hot-press bonding, ultrasonic welding, or strong adhesive. The connection method between the elastic barrier band structure 2 and the diaper body 1 is extremely crucial. Hot-press bonding, under high temperature and pressure, allows the two materials to fuse tightly, forming a strong and flat connection, ensuring overall structural stability. Ultrasonic welding utilizes high-frequency vibration to achieve a seamless connection instantly, greatly enhancing connection strength without affecting the product's soft feel. Strong adhesives, with their powerful bonding force, ensure stability while maintaining the product's softness. These connection methods comprehensively ensure a tight connection between the elastic barrier band structure 2 and the diaper body 1, preventing easy separation during daily use, whether due to frequent stretching or external friction, significantly extending the product's lifespan and providing users with reliable leak-proof protection.

[0026] Furthermore, the elastic barrier band structure 2 is wider in the perineal and groin areas than in the outer waist area. Specifically, the width in both the perineal and groin areas is 3 mm, and the width in the outer waist area is also 3 mm. The perineal and groin areas are key areas where urine and excrement tend to accumulate. The wider design precisely adapts to the complex physiological contours of these areas, acting like a custom-made protective shield that fits snugly and effectively prevents spillage. The relatively flat outer waist area, with its moderate width, ensures a snug fit without feeling constricting, allowing the user to maintain comfort during daily activities such as walking and sitting. This comprehensively improves the fit and comfort of the diaper.

[0027] Furthermore, the surface of the elastic barrier band structure 2 is provided with anti-slip texture 3. The anti-slip texture 3 is raised granular, striped, or wavy, with a height or depth ranging from 0.2 mm to 0.5 mm. This prevents the elastic barrier band structure 2 from shifting during use. To ensure that the elastic barrier band structure 2 always maintains its optimal protective position during use, the anti-slip texture 3 is carefully crafted on its surface. Whether it is raised granular, simple striped, or dynamic wavy, the texture height or depth is strictly controlled within 0.2–0.5 mm. When the infant is constantly active or the adult walks frequently, these textures act like countless tiny "grips," significantly increasing the friction between the skin and clothing, effectively preventing the elastic barrier band structure 2 from sliding or shifting, maintaining precise protection at all times, and ensuring a flawless leak-proof effect.

[0028] Furthermore, the elastic barrier band structure 2 has a waterproof coating on the side in contact with the absorbent layer. The thickness of the waterproof coating is in the range of 4.5 micrometers to 8 micrometers. The thickness of the waterproof coating applied to the side of the elastic barrier band structure 2 near the absorbent layer is precisely maintained at 4.5-8 micrometers. This just-right thickness can be called a "secret weapon" for preventing penetration. In actual use, when a large amount of urine rushes into the absorbent layer, the waterproof coating can quickly play its role, like an indestructible liquid barrier, blocking the urine from the outside and preventing it from penetrating into the interior of the elastic barrier band structure 2. In this way, not only is the elasticity and barrier performance of the elastic barrier band structure 2 effectively maintained, but the product's thin and breathable characteristics are also maintained at all times, allowing users to enjoy a dry and comfortable experience.

[0029] Furthermore, the diaper body 1 has a reinforcing layer in the area where the elastic barrier band structure 2 passes. This reinforcing layer is made of a high-strength, soft material. The clever addition of this reinforcing layer in the area where the elastic barrier band structure 2 passes ensures that, during daily use, it acts as a strong support, significantly enhancing the structural strength of the area and effectively preventing damage due to excessive force, especially in the face of frequent stretching movements, such as a baby's large limb movements or an adult's constantly changing body posture. At the same time, the soft material ensures a delicate touch when the product is against the skin, allowing the user to feel no foreign object sensation and enjoy a consistently comfortable wearing experience.

[0030] Furthermore, the elastic barrier band structure 2 is equipped with an adjustment device 4 on the outer waist area. This device 4 allows for adjustment of the tightness of the elastic barrier band structure 2 on the outer waist. This adjustment device 4 is a major highlight in enhancing the product's versatility and comfort. Since waist sizes vary greatly among users, whether petite or larger, users can easily achieve personalized adjustments using the adjustment device 4. During exercise, the elastic barrier band structure 2 can be tightened for a more secure fit, preventing looseness from affecting movement. During rest, the barrier band can be loosened for a relaxed and comfortable feel. This design greatly enhances the comfort of wearing the diaper, successfully expanding the product's applicability and truly meeting the diverse needs of users of all body types.

[0031] Working principle: The three-dimensional "∞" shaped elastic barrier band structure separates the front and back areas of the diaper, preventing feces from spilling forward. The waterproof coating prevents leakage, keeping the front dry and improving hygiene. The 20%~25% elastic elongation material allows the barrier band to stretch and contract with the body's movements. The widened design in the perineum and groin area conforms to the physiological structure, ensuring comfort. The anti-slip texture on the surface increases friction, preventing the barrier band from shifting and ensuring accurate protection. The adjustment device on the outer waist can adjust the tightness as needed to adapt to different body types and activity scenarios.

[0032] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The anti-fouling and anti-overflow design structure of a disposable diaper, comprising a diaper main body (1) and an elastic barrier strip structure (2) arranged above the inner absorbent layer of the diaper main body (1), characterized in that: The elastic barrier strip structure (2) starts from the outer side of one waist, passes through the ipsilateral inguinal region and extends to the perineum, then extends to the outer side of the other waist, then passes through the inguinal region of the other side and returns to the perineum, and finally returns to the outer side of the waist where it starts, and is arranged in a three-dimensional "∞" shape. The inner part of the diaper main body (1) is divided into an independent rear region and a front region, and the water-absorbing layer remains continuous and unblocked under the elastic barrier strip structure (2).

2. The anti-fouling front overflow design structure of the disposable diaper according to claim 1, wherein: The elastic barrier strip structure (2) is made of an elastic material, and the elastic elongation rate of the elastic material is within the range of 20% - 25%.

3. The anti-fouling front-overflow design structure of the disposable diaper according to claim 1, characterized in that: The elastic barrier strip structure (2) is connected to the diaper main body (1) by hot pressing, ultrasonic welding or a strong adhesive.

4. The anti-fouling front overflow design structure of the disposable diaper according to claim 1, wherein: The width of the elastic barrier strip structure (2) in the perineum and inguinal regions is greater than the width in the outer waist region. The width of the perineum and inguinal regions is 3 mm, and the width of the outer waist region is 3 mm.

5. The anti-fouling front overflow design structure of the disposable diaper according to claim 1, characterized in that: The surface of the elastic barrier strip structure (2) is provided with anti-slip textures (3). The anti-slip textures (3) are convex granular, striped or wavy, and their height or depth is within the range of 0.2 mm - 0.5 mm to prevent the elastic barrier strip structure (2) from shifting during use.

6. The anti-fouling front overflow design structure of the disposable diaper according to claim 1, characterized in that: The elastic barrier strip structure (2) is provided with a waterproof coating on the side in contact with the water-absorbing layer, and the thickness of the waterproof coating is within the range of 4.5 μm - 8 μm.

7. The disposable diaper anti-fouling front overflow design structure according to claim 1, characterized in that: The diaper main body (1) is provided with a reinforcing layer in the area where the elastic barrier strip structure (passes). The reinforcing layer is made of a high-strength and soft material.

8. The anti-fouling front-overflow design structure of the disposable diaper according to claim 1, wherein: The elastic barrier strip structure (2) is provided with an adjusting device (4) in the outer waist region, and the adjusting device (4) can adjust the tightness of the elastic barrier strip structure (2) in the outer waist.

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