Suspended core body paper diaper with double-layer three-dimensional partition edges

By introducing a double-layer three-dimensional side-partition structure into the diaper, the combination design of inner and outer side-partitions and inner separator layer solves the problem of urine leakage under external pressure of the suspended core, achieving a more efficient side-leakage prevention and absorption effect.

CN224085565UActive Publication Date: 2026-04-07GUIZHOU KABU INT BIOLOGICAL TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

When existing diapers are subjected to external pressure, urine at the bottom of the suspended core can easily spray out and cause side leakage, affecting the side leakage prevention effect.

Method used

It adopts a double-layer three-dimensional partition structure, with the inner and outer partitions extending from the sides and surface of the absorbent inner pocket, respectively. The inner partition is used to block and guide urine, while the outer partition serves as a second line of defense. Combined with the design of the inner partition layer and the suspended core, it forms a multi-layer anti-leakage structure.

Benefits of technology

It improves the diaper's ability to prevent side leakage under external pressure. Through the double defense of the inner and outer side panels and the dispersion effect of the inner separator layer, it avoids urine leakage and enhances absorption efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224085565U_ABST
    Figure CN224085565U_ABST
Patent Text Reader

Abstract

The utility model discloses a suspension core body paper diaper with double-layer three-dimensional separation edges, which belongs to the technical field of paper diapers and comprises a paper diaper body, inner separation edges and outer separation edges, the paper diaper body is sequentially composed of surface layer non-woven fabric, a suspension core body, a leakage-proof bottom film and bottom layer non-woven fabric from top to bottom, and a hollow absorption inner pocket is formed between the suspension core body and the leakage-proof bottom film; the inner partition edge extends to the upper surface of the surface layer non-woven fabric from the two transverse sides of the absorbing inner pocket, and the two ends of the inner partition edge extend to the two longitudinal ends of the paper diaper body; the two outer partition edges are arranged on the side, away from the other inner partition edge, of any inner partition edge, and the two ends of each outer partition edge extend to the two longitudinal ends of the paper diaper body. An inner separating layer is arranged in the absorbing inner pocket, the two transverse ends of the inner separating layer are fixedly connected with the bottoms of the two inner separating edges respectively, and the absorbing inner pocket is divided into an upper inner pocket and a lower inner pocket which are distributed up and down by the inner separating layer; the side leakage prevention effect of the paper diaper can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to paper diaper technical field, concretely relates to a double -deck three -dimensional partition edge's paper diaper of suspending core body. BACKGROUND

[0002] Baby paper diaper is mainly provided for the sanitary product of newborn baby, and the main design of paper diaper is to quickly absorb urine and keep the dry of baby's hips, in order to improve the absorption efficiency of paper diaper, part paper diaper adopts the structure of suspending core body, the cavity that can temporarily contain urine is formed in the bottom of the suspending core body in this type of paper diaper, so that the paper diaper can improve the contact area of urine and core body, thereby improving the efficiency of core body absorbing urine, when the paper diaper is extruded by external force, the urine in the bottom of the suspending core body will flow to the side leakage partition edge at a certain flow rate, and the side leakage partition edge may not be able to withstand the impact of urine and part of the urine may leak, thereby affecting the side leakage prevention effect of the paper diaper.

[0003] Based on the above situation, the Chinese patent with publication number CN209529504U discloses a kind of paper diaper of suspending core, and in the paper diaper, suspending film wraps the upper surface and lower surface two side edges of core body, and the lower surface middle part of core body is adhered to the upper surface of positioning film;In the overlapping part of suspending film and the lower surface two side edges of core body, the part close to the lower surface middle part of core body is adhered to the upper surface of positioning film, and the part away from the lower surface middle part of core body is not adhered between the upper surface of positioning film;The lower surface of positioning film is adhered to the upper surface of water-repellent bottom film.

[0004] The above patent document discloses a kind of paper diaper for improving core body suspending area and expanding core body effective absorption area, although the paper diaper effectively improves the contact area of core body and urine by making core body better suspended, but core body still needs a certain time to absorb urine, if paper diaper is extruded by external force before core body completely absorbs urine, urine in the bottom of core body will be sprayed towards three-dimensional guard due to extrusion, and the sprayed urine will leak from both sides of paper diaper after penetrating three-dimensional guard, thereby affecting the side leakage prevention effect of paper diaper, so the paper diaper still has room for improvement. UTILITY MODEL CONTENTS

[0005] In view of the technical defects in the background art, the utility model provides a kind of paper diaper of suspending core body of double -deck three -dimensional partition edge, solves the above technical problems and meets actual demand, and the specific technical scheme is as follows:

[0006] A kind of paper diaper of suspending core body of double -deck three -dimensional partition edge, including paper diaper body, inner partition edge, outer partition edge, the paper diaper body is from top to bottom by face layer nonwoven fabric, suspending core body, leakage-proof bottom film bottom layer nonwoven fabric in sequence, hollow absorption inner pocket is formed between the lower surface of suspending core body and the upper surface of leakage-proof bottom film;

[0007] The inner partition has two sides that extend from the transverse sides of the absorbent inner pocket along the edge of the suspended core to the upper surface of the nonwoven fabric. The two ends of the inner partition extend to the longitudinal ends of the diaper body. The outer partition has two sides that are located on the side of any inner partition away from the other inner partition. The outer partition extends upward from the upper surface of the diaper body. The two ends of the outer partition extend to the longitudinal ends of the diaper body.

[0008] The absorbent inner pocket is provided with an inner partition layer. The two ends of the inner partition layer are fixedly connected to the bottom of the two inner partition sides, and the inner partition layer divides the absorbent inner pocket into an upper inner pocket and a lower inner pocket distributed vertically.

[0009] As a further technical solution of this utility model, the upper and lower surfaces of the inner partition layer are provided with a plurality of longitudinally extending support absorption strips, and an inner pocket guide groove is formed between two adjacent support absorption strips.

[0010] As a further technical solution of this utility model, the suspended core is composed of an upper wrapping layer, an absorption layer and a lower wrapping layer from top to bottom. The upper wrapping layer is folded down along the edges of the suspended core on both sides to the bottom of the lower wrapping layer to form two downward folding strips. A lower guide groove extending longitudinally is formed between the two downward folding strips.

[0011] As a further technical solution of this utility model, the two horizontal layers of the lower wrapping layer are folded upward along the edge of the absorption layer to the top of the absorption layer and form two upward folded strips, and an upper guide groove extending longitudinally is formed between the two upward folded strips.

[0012] As a further technical solution of this utility model, a first adhesive strip is provided between the bottom edge of the suspended core and the inner partition layer, and a second adhesive strip is provided between the bottom edge of the inner partition layer and the leak-proof bottom membrane.

[0013] As a further technical solution of this utility model, the top of both the inner and outer partitions are provided with longitudinally extending partition elastic strips.

[0014] As a further technical solution of this utility model, the diaper body is provided with waist protection wings on both sides of one longitudinal end, the waist protection wings are provided with waist stickers extending outward, and the other longitudinal end of the diaper body is provided with waist sticker strips that match the waist stickers.

[0015] The beneficial effects of this utility model are as follows:

[0016] The diaper of this invention features a suspended core for absorbing urine, which has a suspended structure. The suspended core and the leak-proof bottom film form an absorbent inner pocket that improves the absorbency of the diaper. Inner partitions on both sides of the absorbent inner pocket restrain the urine in the pocket, preventing side leakage caused by external pressure. In addition, the inner and outer partitions form two leak-proof structures on the surface of the non-woven fabric, which further prevent urine from seeping out of the surface of the non-woven fabric, thereby improving the leak-proof effect of the diaper. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a first embodiment of a double-layered, three-dimensional, suspended core diaper.

[0018] Figure 2 This is a structural diagram of a double-layered, three-dimensional, suspended core diaper.

[0019] Figure 3 This is a cross-sectional view of a second embodiment of a double-layered, three-dimensional, suspended core diaper.

[0020] The components are: 1-diaper body, 11-top non-woven fabric, 12-suspended core, 121-upper wrapping layer, 122-absorbent layer, 123-lower wrapping layer, 124-lower fold strip, 125-lower channel, 126-upper fold strip, 127-upper channel, 13-leak-proof bottom film, 14-bottom non-woven fabric, 15-waistband wings, 16-waistband patch, 17-waistband patch, 2-inner partition, 3-outer partition, 4-absorbent inner pocket, 41-upper inner pocket, 42-lower inner pocket, 5-inner separator layer, 51-support absorbent strip, 52-inner pocket channel, 6-first adhesive tape, 7-second adhesive tape, 8-elastic strip for partition. Detailed Implementation

[0021] 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.

[0022] A double-layer, three-dimensional, suspended core diaper includes a diaper body 1, inner partitions 2, and outer partitions 3. The diaper body 1 is composed of a top nonwoven fabric 11, a suspended core 12, a leak-proof bottom film 13, and a bottom nonwoven fabric 14, from top to bottom. A hollow absorbent inner pocket 4 is formed between the lower surface of the suspended core 12 and the upper surface of the leak-proof bottom film 13. The inner partitions 2 have two sides that extend from the transverse sides of the absorbent inner pocket 4 along the edge of the suspended core 12 to the upper surface of the top nonwoven fabric 11. The two ends of the inner partitions 2 extend to the longitudinal ends of the diaper body 1. The outer partitions 3 have two sides that are respectively located on the side of any inner partition 2 away from the other inner partition 2. The outer partitions 3 extend upward from the upper surface of the diaper body 1, and the two ends of the outer partitions 3 extend to the longitudinal ends of the diaper body 1.

[0023] As a first preferred embodiment of this utility model, refer to Figure 1 , Figure 2 The diaper's internal suspended core 12, used to absorb urine, adopts a suspended structure. In the diaper body 1, the surface non-woven fabric 11 is located on the side that directly contacts the baby. After the baby's urine comes into contact with the surface non-woven fabric 11, it permeates into the suspended core 12 and is absorbed. When the amount of urine is large and the suspended core 12 cannot absorb it quickly, some urine will continue to permeate downwards into the absorbent inner pocket 4. The leak-proof bottom film 13 is preferably a waterproof and breathable polyethylene film, so that the absorbent inner pocket 4 can temporarily store this part of the urine. This part of the urine can come into contact with the bottom of the suspended core 12, thereby increasing the effective contact area between the urine and the suspended core 12 and improving the absorption efficiency of the suspended core 12.

[0024] With the above structure, it should be further explained that the inner partition 2 is preferably made of spunlace nonwoven fabric as raw material, so that the inner partition 2 has good fluffiness and water absorption. The inner partition 2 is located on both sides of the absorbent inner pocket 4. When the diaper is squeezed by external force and there is urine inside the absorbent inner pocket 4, the urine is squeezed to the sides of the absorbent inner pocket 4 and then blocked and absorbed by the inner partition 2. In addition, the outer partition 3 is preferably made of waterproof nonwoven fabric as raw material. The outer partition 3 can prevent the urine in the inner partition 2 from seeping out to the sides of the diaper body 1, thereby preventing the urine in the absorbent inner pocket 4 from leaking under external pressure and improving the anti-leakage effect of the diaper.

[0025] Furthermore, both the inner partition 2 and the outer partition 3 extend to the upper surface of the nonwoven fabric 11. The inner partition 2 and the outer partition 3 can serve as a double anti-leakage structure on the surface of the diaper body 1. When urine flows laterally on the surface of the nonwoven fabric 11, the inner partition 2, as the first anti-leakage structure, can absorb the urine and guide it downwards into the absorbent inner pocket 4, which can quickly reduce the amount of urine on the surface of the nonwoven fabric 11 and effectively prevent side leakage. The outer partition 3, as the second anti-leakage structure, usually has a lower amount of urine reaching the outer partition 3 due to the blocking and absorption effect of the inner partition 2. This reduces the burden on the outer partition to prevent urine from seeping outwards, allowing the outer partition 3 to better prevent urine from seeping outwards, thereby improving the anti-leakage effect of the diaper.

[0026] After adopting the above structure, it is necessary to further explain that, referring to Figure 1 The absorbent inner pocket 4 is provided with an inner divider layer 5. The two ends of the inner divider layer 5 are fixedly connected to the bottom of the two inner side panels 2 respectively. The inner divider layer 5 divides the absorbent inner pocket 4 into an upper inner pocket 41 and a lower inner pocket 42. The inner divider layer 5 is preferably made of spunlace nonwoven fabric. The inner divider layer 5 is integrally formed with the inner side panels 2 on both sides. The inner divider layer 5 can divide the absorbent inner pocket 4 into relatively independent upper inner pocket 41 and lower inner pocket 42, which can prevent urine from excessively accumulating in the absorbent inner pocket 4. The good absorbency of the inner divider layer 5 makes the urine more evenly dispersed in the absorbent inner pocket 4. Furthermore, when the diaper body 1 is squeezed by external force, the urine in the absorbent inner pocket 4 is not easily squeezed to flow rapidly, thereby preventing urine from leaking from the lateral sides of the absorbent inner pocket 4 and further improving the anti-leakage effect of the diaper.

[0027] Furthermore, referring to Figure 2 The diaper body 1 has waistband wings 15 on both sides of one longitudinal end, and waistband tabs 16 extending outward from the waistband wings 15. The other longitudinal end of the diaper body 1 has waistband strips 17 that match the waistband tabs 16. The two longitudinal ends of the diaper body 1 are the front waistband and the back waistband, respectively. Elastic spandex yarn is provided inside the waistband on the side with the waistband wings 15. The waistband tabs 16 and waistband strips 17 are attached to the front and back waistbands of the diaper by matching Velcro. After the baby puts on the diaper, the waistband tabs 16 are folded over by the waistband wings 15 at the back waistband and fixed to the waistband strips 17 at the front waistband, thereby fixing the diaper to the baby's waist and buttocks by the elastic spandex yarn at the waistband. In addition, the bottom non-woven fabric 14 is provided on the outside of the diaper body 1, which can improve the softness of the outer surface of the diaper body 1, thereby improving the comfort of the diaper.

[0028] As a second preferred embodiment of this utility model, refer to Figure 3The inner separator layer 5 has several longitudinally extending support absorbent strips 51 on both its upper and lower surfaces, and an inner pocket guide groove 52 is formed between two adjacent support absorbent strips 51. The support absorbent strips 51 on the upper and lower surfaces of the inner separator layer 5 are arranged in a staggered manner in the transverse direction. The support absorbent strips 51 are composed of internal absorbent resin, fluff pulp and non-woven fabric covering the surface. The support absorbent strips 51 can absorb urine and expand. The expanded support absorbent strips 51 will support the upper inner pocket 41 and the lower inner pocket 42, and can contain urine and guide urine to spread longitudinally through the inner pocket guide groove 52. The expanded support absorbent strips 51 can also prevent urine in the absorbent inner pocket 4 from splashing when the diaper is squeezed by external force, thereby preventing side leakage of urine in the absorbent inner pocket 4.

[0029] As one of the preferred embodiments of this utility model, refer to Figure 3 The suspended core 12 is composed of an upper wrapping layer 121, an absorbent layer 122, and a lower wrapping layer 123 from top to bottom. The upper wrapping layer 121 is folded down along the edges of the suspended core 12 to the bottom of the lower wrapping layer 123 on both sides, forming two downward folding strips 124. A lower guide groove 125 extending longitudinally is formed between the two downward folding strips 124. Both the upper wrapping layer 121 and the lower wrapping layer 123 are made of non-woven fabric. The absorbent layer 122 is filled with a mixture of water-absorbing resin and fluff pulp fixed by hot melt adhesive. The upper wrapping layer 121 and the lower wrapping layer 123 can further constrain and fix the material inside the absorbent layer 122. The lower guide groove 125 at the bottom of the suspended core 12 can promote the longitudinal diffusion of urine at the bottom of the suspended core 12. The lower guide groove 125 is connected to the upper inner pocket 41, which can increase the amount of urine that the upper inner pocket 41 can hold.

[0030] As one of the preferred embodiments of this utility model, refer to Figure 3 A first adhesive strip 6 is provided between the bottom edge of the suspended core 12 and the inner separator layer 5, and a second adhesive strip 7 is provided between the bottom edge of the inner separator layer 5 and the leak-proof bottom film 13. Both the first adhesive strip 6 and the second adhesive strip 7 are formed after the hot melt adhesive solidifies. The edges of the suspended core 12, the inner separator layer 5, and the leak-proof bottom film 13 are bonded and fixed by the hot melt adhesive, so that the three are not completely glued and fixed. This forms a hollow upper inner pocket 41 between the suspended core 12 and the inner separator layer 5, and a lower inner pocket 42 between the inner separator layer 5 and the leak-proof bottom film 13. The upper inner pocket 41 and the lower inner pocket 42 improve the side leakage prevention effect of the diaper.

[0031] As one of the preferred embodiments of this utility model, refer to Figure 3The lower wrapping layer 123 is folded upward along the edge of the absorbent layer 122 to the top of the absorbent layer 122 to form two upward folding strips 126. An upper guide groove 127 extending longitudinally is formed between the two upward folding strips 126. The upper guide groove 127 is close to the non-woven fabric 11 of the surface layer. When urine permeates downward from the non-woven fabric 11 of the surface layer, the upper guide groove 127 can promote the longitudinal diffusion of urine. The upper guide groove 127 can also accommodate some of the temporarily unabsorbed urine, reducing the risk of this part of the urine leaking along the lateral sides, thereby improving the anti-leakage effect of the diaper.

[0032] As one of the preferred embodiments of this utility model, refer to Figure 1 , Figure 3 Both the inner partition 2 and the outer partition 3 are provided with longitudinally extending elastic strips 8 at their top ends. The elastic strips 8 are preferably elastic spandex filaments. The two ends of the elastic strips 8 are fixed to the longitudinal ends of the diaper body 1. Through elasticity, the inner partition 2 and the outer partition 3 are better lifted off the surface of the non-woven fabric 11, thereby blocking urine flowing along the transverse sides and preventing urine leakage. The elastic strips 8 can also make the inner partition 2 and the outer partition 3 fit the baby's skin better through elasticity, preventing urine from leaking out from the gap between the partition and the skin, thereby improving the anti-leakage effect of the diaper.

[0033] In summary, the suspended core 12 inside the diaper of this invention, which is used to absorb urine, adopts a suspended structure. The suspended core 12 and the leak-proof bottom film 13 form an absorbent inner pocket 4, which can improve the absorbency of the diaper. The absorbent inner pocket 4 is constrained by the inner partition 2 on both sides, which prevents the urine in the absorbent inner pocket 4 from leaking out due to external pressure. In addition, the inner partition 2 and the outer partition 3 form two anti-leakage structures on the surface of the non-woven fabric 11. The inner partition 2 and the outer partition 3 block the urine from leaking out of the surface of the non-woven fabric 11, thereby improving the anti-leakage effect of the diaper.

[0034] 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. A double-layered, three-dimensional, suspended core diaper, comprising a diaper body (1), an inner partition (2), and an outer partition (3), characterized in that, The diaper body (1) is composed of a top non-woven fabric (11), a suspended core (12), a leak-proof bottom film (13), and a bottom non-woven fabric (14) from top to bottom. A hollow absorbent inner pocket (4) is formed between the lower surface of the suspended core (12) and the upper surface of the leak-proof bottom film (13). The inner partition (2) has two sides that extend from the transverse sides of the absorbent inner pocket (4) along the edge of the suspended core (12) to the upper surface of the surface nonwoven fabric (11). The two ends of the inner partition (2) extend to the longitudinal ends of the diaper body (1). The outer partition (3) has two sides that are respectively located on the side of any inner partition (2) away from the other inner partition (2). The outer partition (3) extends upward from the upper surface of the diaper body (1). The two ends of the outer partition (3) extend to the longitudinal ends of the diaper body (1). The absorbent inner pocket (4) is provided with an inner partition layer (5). The two ends of the inner partition layer (5) are fixedly connected to the bottom of the two inner partitions (2) respectively. The inner partition layer (5) divides the absorbent inner pocket (4) into an upper inner pocket (41) and a lower inner pocket (42) distributed vertically.

2. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 1, characterized in that, The inner partition layer (5) has several longitudinally extending support absorption strips (51) on both its upper and lower surfaces, and an inner duct guide groove (52) is formed between two adjacent support absorption strips (51).

3. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 1, characterized in that, The suspended core (12) is composed of an upper wrapping layer (121), an absorption layer (122), and a lower wrapping layer (123) from top to bottom. The upper wrapping layer (121) is folded down along the edges of the suspended core (12) on both sides to the bottom of the lower wrapping layer (123) to form two downward folding strips (124). A lower guide groove (125) extending longitudinally is formed between the two downward folding strips (124).

4. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 3, characterized in that, The lower wrapping layer (123) is folded up along the edge of the absorption layer (122) to the top of the absorption layer (122) to form two upward folding strips (126), and an upper guide groove (127) extending longitudinally is formed between the two upward folding strips (126).

5. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 1, characterized in that, A first adhesive strip (6) is provided between the bottom edge of the suspended core (12) and the inner partition layer (5), and a second adhesive strip (7) is provided between the bottom edge of the inner partition layer (5) and the leak-proof bottom membrane (13).

6. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 1, characterized in that, Both the inner partition (2) and the outer partition (3) are provided with longitudinally extending elastic strips (8) at their top ends.

7. The double-layer three-dimensional side-partitioned suspended core diaper according to claim 1, characterized in that, The diaper body (1) has waist protection wings (15) on both sides of one longitudinal end, and the waist protection wings (15) have waist stickers (16) extending outward. The other longitudinal end of the diaper body (1) has waist strips (17) that match the waist stickers (16).

Citation Information

Patent Citations

  • Suspension core paper diaper

    CN209529504U