A new type of close-fitting baby diaper

CN224911417UActive Publication Date: 2026-10-30ZHONGTIAN CHINA IND
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Patent Information

Application Number
CN202522325759.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-10-30
Estimated Expiration
2035-11-03

AI Technical Summary

Technical Problem

[0003]因此,针对上述的问题,本实用新型提供一种新型贴身婴儿纸尿裤,它主要解决了现有技术中纸尿裤的贴合性差的问题

Benefits of technology

[0010]通过采用前述技术方案,本实用新型的有益效果是:本新型贴身婴儿纸尿裤,将纸尿裤本体沿纵向依次分为前腰区、裆部区和后腰区,这种分区设计符合婴儿身体的不同部位特征,能够更好地适应婴儿身体曲线,为不同部位提供针对性的支撑和保护,并且衣物层由第一无纺布、第二无纺布、第三无纺布以及多种橡筋组成,多层次结构增加了纸尿裤的复杂性和功能性。第一无纺布的前、后腰区折叠设计,并分别设置第一、第二橡筋,能够在腰部提供弹性收缩力,使纸尿裤更好地贴合婴儿腰部,防止纸尿裤下滑,同时保证婴儿活动时的舒适度,不会因过紧而勒伤婴儿皮肤,同时第一无纺布纵向中部横向两侧的弧形让位槽、第二无纺布延伸入弧形让位槽形成延伸区,以及第三、第四橡筋的特定分布,当第一无纺布前后腰区横向两侧焊接连接后,第四橡筋收缩使延伸区形成腿兜。这种独特的腿部围护结构能够紧密贴合婴儿腿部,有效防止尿液侧漏,为婴儿腿部提供舒适的包裹感,减少因摩擦导致的不适。

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Abstract

The utility model relates to a disposable sanitary product field especially relates to a novel close-fitting baby paper diaper, it mainly solved the problem of poor fit of paper diaper in the prior art, including paper diaper body, paper diaper body includes the absorbent body and the clothes layer compound in its outside, the clothes layer includes first non -woven fabric, second non -woven fabric, third non -woven fabric, a plurality of first rubber band, a plurality of second rubber band, a plurality of third rubber band and a plurality of fourth rubber band, the longitudinal inward folding of first non -woven fabric on one end in front waist area forms the front folding part, the longitudinal inward folding of first non -woven fabric on one end in back waist area forms the back folding part, each second rubber band is arranged between first non -woven fabric and back folding part and is distributed side by side, the lateral two sides of the longitudinal middle part of first non -woven fabric are concave and have the arc accommodation slot, second non -woven fabric is compound on the outer surface of the longitudinal middle part of first non -woven fabric, and the lateral two sides of second non -woven fabric extend into the arc accommodation slot, and form the extension area.
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Description

Technical Field

[0001] This utility model relates to the field of disposable hygiene products, and in particular to a novel close-fitting baby diaper. Background Technology

[0002] In the field of infant care, diapers are essential for ensuring the comfort and health of babies. Traditional baby diapers have some design and structural shortcomings, resulting in an unsatisfactory fit to the baby's body. For example, some diapers fail to adequately consider the dynamic changes and physiological characteristics of a baby's body in the waist and crotch areas, making them prone to shifting or loosening during baby's activities. This not only leads to urine leakage, soiling the baby's clothes and surrounding environment, but also causes prolonged contact between the baby's delicate skin and urine, resulting in diaper rash and other skin problems. Furthermore, some diapers have poorly designed leg support structures that fail to fit snugly around the baby's legs, increasing the risk of side leakage and affecting the baby's freedom of movement and comfort. Therefore, developing a baby diaper that improves the fit to the baby's body has become a pressing issue in the current baby diaper industry. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model provides a new type of close-fitting baby diaper, which mainly solves the problem of poor fit of diapers in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel close-fitting baby diaper includes a diaper body, defined as extending longitudinally along the length direction of the diaper body in its unfolded state, and extending laterally along the width direction of the diaper body in its unfolded state. The diaper body has a front waist area, a crotch area, and a back waist area sequentially distributed along the longitudinal direction. The diaper body includes an absorbent core and a clothing layer laminated to its outer side. The clothing layer includes a first non-woven fabric, a second non-woven fabric, a third non-woven fabric, a plurality of first elastic bands, a plurality of second elastic bands, a plurality of third elastic bands, and a plurality of fourth elastic bands. The first non-woven fabric is folded longitudinally inward at one end in the front waist area to form a front fold, and each of the first elastic bands is arranged side by side between the first non-woven fabric and the front fold. The first non-woven fabric is folded longitudinally inward at one end in the back waist area to form a back fold, and each of the second elastic bands is arranged side by side. Located between the first nonwoven fabric and the back fold, the first nonwoven fabric has an arc-shaped relief groove recessed inward on both sides of the longitudinal center. The second nonwoven fabric is laminated on the outer surface of the longitudinal center of the first nonwoven fabric, and the lateral sides of the second nonwoven fabric extend into the arc-shaped relief groove to form an extension area. The third nonwoven fabric is laminated on the outer surface of the second nonwoven fabric. Each third elastic band is located between the second and third nonwoven fabrics and distributed in the longitudinal center of the second nonwoven fabric. Each third elastic band extends in the lateral direction. Each fourth elastic band is located between the second and third nonwoven fabrics and distributed in the extension area. Each fourth elastic band extends in the longitudinal direction. When the lateral sides of the front waist area of ​​the first nonwoven fabric are welded to the lateral sides of the back waist area of ​​the first nonwoven fabric, the fourth elastic band located in the extension area contracts, forming a leg pocket in the extension area.

[0006] Furthermore, the ratio of the longitudinal length dimension of the second nonwoven fabric to that of the first nonwoven fabric is 1:2 to 3, and the ratio of the longitudinal length dimension of the third nonwoven fabric to that of the second nonwoven fabric is 1 to 2:1.

[0007] Furthermore, the transverse width of the second nonwoven fabric located at the longitudinal centerline of the diaper body is 4cm to 12cm larger than that of the first nonwoven fabric.

[0008] Furthermore, the absorbent body includes a liquid-permeable surface layer, an absorbent core layer, and a liquid-impermeable bottom layer stacked sequentially from top to bottom. The transverse center of the diaper body is provided with a strip-shaped channel, and the diaper body is provided with a urine collection area communicating with the channel at the front waist area.

[0009] Furthermore, the absorbent core layer includes an upper nonwoven fabric, a lower nonwoven fabric, and an absorbent material layer distributed between the upper and lower nonwoven fabrics. The absorbent material layer includes fluff pulp and superabsorbent polymer particles. The absorbent material layer has channels, and the upper and lower nonwoven fabrics are composited at the channels to form a guide groove.

[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This novel close-fitting baby diaper divides the diaper body longitudinally into a front waist area, a crotch area, and a back waist area. This partitioned design conforms to the characteristics of different parts of the baby's body, better adapts to the baby's body curves, and provides targeted support and protection for different parts. Furthermore, the clothing layer is composed of a first non-woven fabric, a second non-woven fabric, a third non-woven fabric, and various elastic bands. The multi-layered structure increases the complexity and functionality of the diaper. The folded design of the front and back waist areas of the first non-woven fabric, with the first and second elastic bands respectively, provides elastic contraction force at the waist, allowing the diaper to better fit the baby's waist, preventing the diaper from slipping down, and ensuring the baby's comfort during activity. It will not chafe the baby's skin due to being too tight. At the same time, the arc-shaped relief grooves on both sides of the longitudinal center of the first non-woven fabric, the extension area formed by the second non-woven fabric extending into the arc-shaped relief grooves, and the specific distribution of the third and fourth elastic bands, when the front and back waist areas of the first non-woven fabric are welded together, the fourth elastic band contracts to form a leg pocket in the extension area. This unique leg support structure fits snugly against the baby's legs, effectively preventing urine leakage and providing a comfortable wrapping sensation, reducing discomfort caused by friction. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0012] Figure 2 This is a top view of the structure of this utility model embodiment in its unfolded state;

[0013] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0014] Figure 4 This is a top view of the clothing layer in the unfolded state in an embodiment of this utility model;

[0015] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure at point BB. Detailed Implementation

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] The embodiment of this utility model is as follows:

[0018] refer to Figures 1 to 5As shown, a novel close-fitting baby diaper includes a diaper body 1, defined as extending longitudinally along the length direction of the diaper body 1 in its unfolded state, and extending laterally along the width direction of the diaper body 1 in its unfolded state. The diaper body 1 has a front waist area 301, a crotch area 302, and a back waist area 303 sequentially distributed along the longitudinal direction. The diaper body 1 includes an absorbent core 200 and a clothing layer 100 laminated to its outer side. The clothing layer 100 includes a first nonwoven fabric 101 and a second nonwoven fabric 102. 02. A third nonwoven fabric 103, nine first elastic bands 104, nine second elastic bands 105, eight third elastic bands 106, and eight fourth elastic bands 107. The first nonwoven fabric 101 is folded longitudinally inward at one end in the front waist area 301 to form a front fold 108. Each of the first elastic bands 104 is arranged side-by-side between the first nonwoven fabric 101 and the front fold 108. The first nonwoven fabric 101 is folded longitudinally inward at one end in the rear waist area 303 to form a rear fold 109. Each of the second elastic bands 105 is arranged side-by-side. Located between the first nonwoven fabric 101 and the rear folded portion 109, the first nonwoven fabric 101 has arc-shaped relief grooves 2 recessed inward on both sides of its longitudinal center. The second nonwoven fabric 102 is laminated to the outer surface of the longitudinal center of the first nonwoven fabric 101, and the lateral sides of the second nonwoven fabric 102 extend into the arc-shaped relief grooves 2, forming an extension area 3. The third nonwoven fabric 103 is laminated to the outer surface of the second nonwoven fabric 102. Each of the third elastic bands 106 is located between the second nonwoven fabric 102 and the third nonwoven fabric 103. The third elastic bands 106 extend in the transverse direction and are distributed in the longitudinal middle of the second nonwoven fabric 102. The fourth elastic bands 107 are located between the second nonwoven fabric 102 and the third nonwoven fabric 103 and are distributed in the extension area 3. The fourth elastic bands 107 extend in the longitudinal direction. When the transverse sides of the front waist area 301 of the first nonwoven fabric 101 are welded to the transverse sides of the back waist area 303 of the first nonwoven fabric 101, the fourth elastic bands 107 located in the extension area 3 contract, so that a leg pocket 4 is formed in the extension area 3.

[0019] This novel close-fitting baby diaper divides the diaper body 1 longitudinally into a front waist area 301, a crotch area 302, and a back waist area 303. This partitioned design conforms to the characteristics of different parts of the baby's body, better adapts to the baby's body curves, and provides targeted support and protection for different parts. Furthermore, the clothing layer 100 is composed of a first non-woven fabric 101, a second non-woven fabric 102, a third non-woven fabric 103, and various elastic bands. The multi-layered structure increases the complexity and functionality of the diaper. The first nonwoven fabric 101 features a folded design in the front and back waist areas, with first and second elastic bands respectively. This provides elastic contraction at the waist, allowing the diaper to better fit the baby's waist, preventing it from slipping down, and ensuring the baby's comfort during movement. It also prevents the diaper from being too tight and chafing the baby's skin. Additionally, the arc-shaped relief grooves 2 on both sides of the longitudinal center of the first nonwoven fabric 101, the second nonwoven fabric 102 extending into the arc-shaped relief grooves 2 to form extension areas 3, and the specific distribution of the third and fourth elastic bands, when the front and back waist areas of the first nonwoven fabric 101 are welded together, the fourth elastic band 107 contracts to form a leg sling 4 in the extension area 3. This unique leg protection structure can fit snugly against the baby's legs, effectively preventing urine leakage, providing a comfortable wrapping feel for the baby's legs, and reducing discomfort caused by friction.

[0020] Specifically, the ratio of the longitudinal length of the second nonwoven fabric 102 to the longitudinal length of the first nonwoven fabric 101 is 1:2 to 3, preferably 1:2. The ratio of the longitudinal length of the third nonwoven fabric 103 to the longitudinal length of the second nonwoven fabric 102 is 1 to 2:1, preferably 1:1. By reasonably setting the length ratio of each nonwoven fabric, the structure of the diaper in the longitudinal direction is more coordinated, which can better adapt to the longitudinal length changes of the baby's body, further improve the fit between the diaper and the baby's body, and ensure that appropriate wrapping and support can be provided in different parts.

[0021] Furthermore, the lateral width of the second nonwoven fabric 102 located at the longitudinal centerline of the diaper body 1 is 4cm to 12cm larger than that of the first nonwoven fabric 101, preferably 8cm. Appropriately increasing the lateral width of the second nonwoven fabric 102 can better cover the baby's buttocks and crotch area while ensuring the overall structural stability of the diaper, enhancing the lateral fit, further preventing urine leakage from the lateral side, and providing more reliable protection for the baby.

[0022] In this embodiment, the absorbent body 200 includes a liquid-permeable surface layer 210, an absorbent core layer 220, and a liquid-impermeable bottom layer 230 stacked sequentially from top to bottom. A strip-shaped channel 5 is provided in the transverse middle of the diaper body 1. A urine collection area 6, communicating with the channel 5, is provided on the diaper body 1 at the front waist area 301. The liquid-permeable surface layer 210 can quickly guide urine to the absorbent core layer 220. The fluff pulp and superabsorbent polymer particles in the absorbent core layer 220 can quickly absorb and lock in urine. The liquid-proof bottom layer 230 effectively prevents urine from leaking to the outside of the diaper, keeping the baby's skin dry. The diaper body 1 has a strip-shaped diversion channel 5 in the middle of the horizontal direction, and a urine collection area 6 connected to the diversion channel 5 is set in the front waist area 301. The diversion channel 5 can guide the urine to spread quickly and avoid urine accumulation in a local area. The urine collection area 6 can collect the urine in a concentrated manner, improve the diversion and absorption efficiency of urine, reduce the contact area and time between urine and the baby's skin, and reduce the probability of skin problems such as diaper rash.

[0023] Meanwhile, the absorbent core layer 220 includes an upper non-woven fabric 221, a lower non-woven fabric 222, and an absorbent material layer 223 distributed between the upper and lower non-woven fabrics 221 and 222. The absorbent material layer 223 includes fluff pulp and superabsorbent polymer particles. The absorbent material layer 223 has channels 224. The upper non-woven fabric 221 and the lower non-woven fabric 222 are bonded together at the channels 224 to form a guide groove 5, which allows urine to spread more quickly and evenly along the guide groove 5, making full use of the absorbent material layer 223's absorbency, improving the overall absorption speed and absorbency of the diaper, further enhancing the absorption and guide effect of the baby's urine, and keeping the baby's skin dry and comfortable.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A novel type of close-fitting baby diaper, characterized in that: The diaper includes a diaper body, defined as extending longitudinally along its length when unfolded, and laterally along its width when unfolded. The diaper body has a front waist area, a crotch area, and a back waist area sequentially distributed along the longitudinal direction. The diaper body includes an absorbent core and a clothing layer laminated to its outer surface. The clothing layer includes a first non-woven fabric, a second non-woven fabric, a third non-woven fabric, several first elastic bands, several second elastic bands, several third elastic bands, and several fourth elastic bands. A front fold is formed by longitudinally folding inwards at one end of the first non-woven fabric near the front waist area. Each of the first elastic bands is arranged side-by-side between the first non-woven fabric and the front fold. A back fold is formed by longitudinally folding inwards at one end of the first non-woven fabric near the back waist area. Each of the second elastic bands is arranged side-by-side between the first non-woven fabric and the front fold. Between the fabric and the back fold, the first nonwoven fabric has an arc-shaped relief groove recessed inward on both sides of the longitudinal center of the transverse portion. The second nonwoven fabric is laminated on the outer surface of the longitudinal center of the first nonwoven fabric, and the transverse sides of the second nonwoven fabric extend into the arc-shaped relief groove to form an extension area. The third nonwoven fabric is laminated on the outer surface of the second nonwoven fabric. Each of the third elastic bands is located between the second and third nonwoven fabrics and is distributed in the longitudinal center of the second nonwoven fabric. Each of the third elastic bands extends in the transverse direction. Each of the fourth elastic bands is located between the second and third nonwoven fabrics and is distributed in the extension area. Each of the fourth elastic bands extends in the longitudinal direction. When the transverse sides of the front waist area of ​​the first nonwoven fabric are welded to the transverse sides of the back waist area of ​​the first nonwoven fabric, the fourth elastic bands located in the extension area contract, so that a leg pocket is formed in the extension area.

2. The novel close-fitting baby diaper according to claim 1, characterized in that: The ratio of the longitudinal length dimension of the second nonwoven fabric to that of the first nonwoven fabric is 1:2 to 3, and the ratio of the longitudinal length dimension of the third nonwoven fabric to that of the second nonwoven fabric is 1 to 2:

1.

3. The novel close-fitting baby diaper according to claim 1 or 2, characterized in that: The second nonwoven fabric located at the longitudinal centerline of the diaper body has a transverse width dimension that is 4cm to 12cm larger than that of the first nonwoven fabric.

4. The novel close-fitting baby diaper according to claim 3, characterized in that: The absorbent body includes a liquid-permeable top layer, an absorbent core layer, and a liquid-impermeable bottom layer stacked sequentially from top to bottom. The transverse middle part of the diaper body is provided with a strip-shaped channel, and the diaper body is provided with a urine collection area connected to the channel at the front waist area.

5. The novel close-fitting baby diaper according to claim 4, characterized in that: The absorbent core layer includes an upper nonwoven fabric, a lower nonwoven fabric, and an absorbent material layer distributed between the upper and lower nonwoven fabrics. The absorbent material layer includes fluff pulp and superabsorbent polymer particles. The absorbent material layer has channels, and the upper and lower nonwoven fabrics are composited at the channels to form a guide groove.