Core body capable of absorbing urine and excrement in partitioned mode and paper diaper provided with core body

By setting a urine core and a feces channel in the core, and utilizing the rapid absorption of the urine core and the efficient storage of the lower core, the problems of poor absorption and side leakage of the existing core are solved, and the effects of rapid absorption and anti-side leakage are achieved.

CN223365776UActive Publication Date: 2025-09-23QUANZHOU JIAHUA SANITARY PROD

Patent Information

Application Number
CN202422430584.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-09-23
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

When the existing core absorbs urine and feces, the liquid tends to concentrate in the middle, resulting in poor absorption effect and easy side leakage.

Method used

The core design adopts partitioned absorption of urine and feces, including the lower core and urine cores on both sides to form a feces channel. The urine core has a fast liquid absorption speed and small polymer particles. The lower core has a good secondary liquid absorption effect. Combined with the guide groove and wrapping layer design, the absorption and anti-side leakage effects are improved.

Benefits of technology

It achieves rapid absorption of urine and prevents side leakage. The lower core effectively stores feces, adapts to the physiological differences between male and female babies, and improves the absorption effect and anti-side leakage performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of disposable hygienic products, and provides a urine and excrement partitioned absorption core body which comprises a core body, the core body comprises a lower-layer core body and two urine core bodies arranged on the top of the lower-layer core body respectively, the two urine core bodies are arranged in the length direction and arranged on the two sides of the lower-layer core body respectively, and the two urine core bodies are arranged on the upper-layer core body and the lower-layer core body respectively. A urine channel is formed between the two urine core bodies, and the width of the urine channel is not smaller than 2 cm. The lower layer core body has the effects of conduction, supporting, storage, liquid absorption and excrement absorption, the urine core body mainly has the effects of liquid absorption and side leakage prevention, the excrement liquid channel can buffer and guide a large amount of liquid, the excrement liquid channel also has a certain isolation effect, the buttocks cannot make contact with a large amount of excrement, and the buttocks of babies are prevented from being red. Physiological positions of male babies and female babies are different, the left-right partition arrangement can adapt to the male babies and the female babies, excrement absorption and liquid absorption cannot be affected even if the core body is worn at the upper position or the lower position, and the technical problem that the core body is poor in flow guide and absorption effect is solved.
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Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a core body for absorbing urine and feces in partitioned areas and a diaper equipped with the core body. Background Art

[0002] At present, most of the existing cores absorb urine and feces together, and the absorption of urine and feces is usually concentrated in the middle of the core. When urine and feces are absorbed, a large amount of liquid will be concentrated in the middle of the core. It is difficult for the middle of the core to absorb a large amount of liquid in a short period of time. The liquid diffuses, which may cause urine to leak sideways, and the urine diversion and absorption effects are poor.

[0003] Chinese patent application number: 201821700092.4 discloses a 3D diversion absorbent core, comprising an upper cover layer, a composite absorbent core layer, and a lower cover layer connected from top to bottom. The composite absorbent core layer comprises one or more absorbent core layers. A low-density distribution area of ​​superabsorbent polymer is provided at the center of the composite absorbent core layer and / or at centrally symmetrical positions on both sides of the composite absorbent core layer. A top diversion body and a bottom diversion body corresponding to and facing away from the top diversion body are provided at the top and bottom of the 3D diversion absorbent core, respectively, corresponding to the low-density distribution area of ​​superabsorbent polymer. Diversion grooves circumferentially surrounding the 3D protrusions are provided within the top and bottom diversion bodies. This absorbent core has poor diversion performance, potentially leading to lateral urine leakage and poor urine diversion and absorption. Utility Model Content

[0004] Therefore, in order to solve the above problems, the present invention proposes a core body for absorbing urine and feces in different zones and a diaper equipped with the core body, which solves the technical problems of poor diversion and absorption effects of the core body.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A core for urine and feces partitioned absorption includes a core body, wherein the core body includes a lower core body and two urine cores respectively arranged on the top of the lower core body, the two urine cores are arranged along the length direction, the two urine cores are respectively arranged on both sides of the lower core body, and a feces channel is formed between the two urine cores, and the width of the feces channel is not less than 2 cm.

[0007] Further:

[0008] The urine core comprises a first non-woven fabric and a first polymer layer which are compositely arranged.

[0009] The first polymer layer is located below the first non-woven fabric.

[0010] The liquid absorption speed of the urine core is greater than that of the lower core, and the secondary liquid absorption effect of the lower core is better than that of the urine core.

[0011] The volume of the polymer particles of the urine core is smaller than the volume of the polymer particles of the lower core.

[0012] The inner side edge of the urine core is in a wave shape.

[0013] The thickness of the middle portion of the lower core is smaller than the thickness of the two sides, and a V-shaped guide groove is formed on the top of the lower core or the top of the middle portion of the lower core.

[0014] The core body further comprises a wrapping layer, which wraps the lower core and the two urine cores.

[0015] The thickness of the lower core is at least 2.5 times the thickness of the urine core.

[0016] The utility model also provides a diaper equipped with a core body for absorbing urine and feces in partitioned areas, comprising a guide layer, a core body, and a leak-proof bottom layer arranged in sequence from top to bottom, wherein a through hole is provided in the middle of the guide layer above the feces channel.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are:

[0018] The lower core of the utility model plays the effects of conducting, supporting, storing, absorbing liquid and absorbing feces. The urine core mainly plays the effects of absorbing liquid and preventing side leakage. The feces channel can buffer and guide a large amount of liquid. When liquid enters the feces channel, the liquid can be quickly guided along the feces channel, reducing the liquid accumulated in the middle. The two urine cores have the effects of blocking and absorbing urine, improving the diffusion and absorption effect of urine, and preventing urine from leaking sideways. When feces fall into the lower core, the lower core can absorb the feces. The feces seeps into the lower core, and the feces channel also has a certain isolation effect. The buttocks will not come into contact with a large amount of feces, preventing the occurrence of baby's diaper. The physiological positions of male and female babies are different, and the setting of the left and right partitions can adapt to male and female babies. When wearing, even if the baby is wearing it in an upper or lower position, it will not affect the absorption of feces and liquid. Furthermore, the urine core only adopts one layer of first non-woven fabric, which is thinner, and the liquid seepage and diversion speed is faster, which can quickly absorb the liquid, preventing the baby from leaking sideways. Leakage; further, the liquid absorption speed of the urine core is greater than the liquid absorption speed of the lower core, the urine core can quickly absorb the liquid and prevent side leakage, and the secondary liquid absorption effect of the lower core is better than the secondary liquid absorption effect of the urine core. The lower core can absorb a large amount of urine, and the entire core body not only has a good absorption effect, but also has a good anti-side leakage effect; further, the volume of the polymer particles of the urine core is smaller than the volume of the polymer particles of the lower core. The larger the volume of the same polymer particles, the stronger its secondary liquid absorption ability, and the smaller the same polymer particles, the better the liquid absorption speed. By setting up polymer particles of different sizes, the secondary absorption and anti-side leakage effects of the core body are improved; further, the inner edge of the urine core is wavy, which increases the contact area between the laterally moving liquid and the urine core, and has a certain diversion effect; further, the lower core is provided with a diversion groove, which can increase the buffering and diversion space of the fecal liquid, and a slope is formed on both sides, which has a good anti-side leakage effect. Furthermore, the thickness of the lower core is at least 2.5 times the thickness of the urine core, and the upper core is thin and has a good liquid absorption speed, so that the urine and feces are better absorbed in different areas; further, the middle part of the diversion layer has a through hole, which is conducive to the infiltration of feces into the feces channel, thereby improving the infiltration and absorption effect of feces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a simplified cross-sectional view of embodiment 1.

[0020] Figure 2 It is a top view of the lower core and urine core of the embodiment.

[0021] Figure 3 It is a structural diagram of the diaper of Example 1.

[0022] Figure 4 It is a partial cross-sectional view of the diaper of Example 1.

[0023] Figure 5 This is a cross-sectional view of the urine core of Example 1 having a three-layer structure.

[0024] Figure 6 It is a structural diagram of the lower core.

[0025] Figure 7 It is a structural diagram of embodiment 2.

[0026] Reference numerals:

[0027] 1. Core body; 11. Lower core; 111. Second non-woven fabric; 112. Second polymer layer; 113. Diversion groove; 12. Urine core; 121. First non-woven fabric; 122. First polymer layer; 13. Stool channel; 14. Wrapping layer; 2. Diversion layer; 20. Through hole; 3. Leak-proof bottom layer. DETAILED DESCRIPTION

[0028] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0029] Example 1

[0030] refer to Figure 1 and Figure 2 Embodiment 1 provides a core for urine and feces partition absorption, including a core body 1, the core body 1 including a lower core 11, two urine cores 12 respectively arranged on the top of the lower core 11, the two urine cores 12 are arranged along the length direction, the two urine cores 12 are respectively arranged on both sides of the lower core 11, a feces channel 13 is formed between the two urine cores 12, the width of the feces channel 13 is not less than 2 cm, the urine core 12 includes a composite first non-woven fabric 121 and a first polymer layer 122, the first polymer layer 122 is located below the first non-woven fabric 121. The inner edge of the urine core 12 is wavy. The liquid absorption speed of the above-mentioned urine core 12 is greater than the liquid absorption speed of the lower core 11, and the secondary liquid absorption effect of the lower core 11 is better than the secondary liquid absorption effect of the urine core 12. The volume of the polymer particles of the urine core 12 is smaller than the volume of the polymer particles of the lower core 11. The core body 1 further comprises a wrapping layer 14, which wraps the lower core 11 and the two urine cores 12. The thickness of the lower core 11 is at least 2.5 times the thickness of the urine core 12.

[0031] refer to Figure 3 and Figure 4 The present invention also provides a diaper equipped with a core body for urine and feces absorption, comprising a guide layer 2, a core body 1, and a leak-proof bottom layer 3 arranged in sequence from top to bottom, and a through hole 20 is provided in the middle of the guide layer 2 above the feces channel 13.

[0032] The width of the stool passage 13 is not less than 2 cm, and can be set to 2 cm, 3 cm, 4 cm, 5 cm or even larger, depending on the specific situation.

[0033] refer to Figure 5 The above-mentioned urine core 12 can also be provided with two layers of first non-woven fabric 121, that is, including a composite first non-woven fabric 121, a first polymer layer 122 and a first non-woven fabric 121. In this structure, the thickness of the urine core 12 is larger and the infiltration speed is relatively slow.

[0034] The wrapping layer 14 may not be provided, and the wrapping layer 14 may also wrap the urine core 12 and the lower core 11 respectively, which can be provided according to specific circumstances.

[0035] The first polymer layer 122 may also be disposed on the first non-woven fabric 121 .

[0036] The liquid absorption speed of the urine core 12 may also be equal to or less than the liquid absorption speed of the lower core 11 , and the specific setting depends on the situation.

[0037] The secondary liquid absorption effect of the urine core 12 may also be better than or equal to that of the lower core 11 , and may be set specifically according to circumstances.

[0038] The volume of the polymer particles of the urine core 12 may also be greater than or equal to the volume of the polymer particles of the lower core 11 .

[0039] The inner edge of the urine core 12 may also be a straight line, an arc or other structures, which can be set according to specific circumstances.

[0040] The thickness of the lower core 11 may also be less than 2.5 times the thickness of the urine core 12, depending on the specific situation.

[0041] The through holes 20 can also be provided on the entire guide layer 2 , depending on the specific situation.

[0042] The first non-woven fabric 121 is usually blue, which makes the core body 1 more beautiful.

[0043] refer to Figure 6 The lower core 11 includes two layers of second non-woven fabric 111 and a second polymer layer 112 arranged between the two layers of second non-woven fabric 111; the lower core 11 may also be provided with only one layer of second non-woven fabric 111; the lower core 11 may also adopt other structures, which may be arranged according to specific circumstances.

[0044] The working method of the first embodiment is:

[0045] The diaper is worn on the human body. When urine flows into the diaper, the urine passes through the diversion layer 2 and enters the stool channel 13. The stool channel 13 can buffer and divert a large amount of urine. The urine can be quickly diverted along the stool channel 13, reducing the urine accumulation in the middle. The urine flowing to the sides can be quickly absorbed by the urine core 12, effectively preventing side leakage. The two urine cores 12 have the function of blocking and absorbing urine, improving the diffusion and absorption effect of urine, and preventing urine from leaking sideways. When feces fall to the lower core 11, the lower core 11 can absorb the feces, and the feces penetrates into the lower core 11. The stool channel 13 also has a certain isolation effect, and the buttocks will not come into contact with a large amount of feces, preventing the occurrence of baby's diaper; the physiological positions of male and female babies are different, and the setting of the left and right partitions can adapt to male and female babies. When wearing, even if the baby is wearing it in an upper or lower position, it will not affect the absorption of feces and liquid.

[0046] Example 2

[0047] The main difference between the second embodiment and the first embodiment is that the thickness of the middle portion of the lower core 11 in the second embodiment is smaller than the thickness of the two sides, and a V-shaped guide groove 113 is formed on the top of the middle portion of the lower core 11 .

[0048] The guide groove 113 of the second embodiment can increase the buffering and diversion space of fecal liquid, and a slope is formed on both sides, which has a good anti-side leakage effect.

[0049] The core body 1 of the present invention can be used not only on diapers, but also on pull-up pants, sanitary napkins or other disposable sanitary products.

[0050] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A core for urine and feces absorption in different zones, characterized by: The invention comprises a core body, wherein the core body comprises a lower core body and two urine core bodies respectively arranged on the top of the lower core body. The two urine core bodies are arranged along the length direction, and the two urine core bodies are respectively arranged on both sides of the lower core body. A fecal liquid channel is formed between the two urine core bodies, and the width of the fecal liquid channel is not less than 2 cm.

2. The core for urine and feces absorption according to claim 1, characterized in that: The urine core comprises a first non-woven fabric and a first polymer layer which are compositely arranged.

3. The core for urine and feces absorption according to claim 2, characterized in that: The first polymer layer is located below the first non-woven fabric.

4. The core for urine and feces absorption according to claim 1, characterized in that: The liquid absorption speed of the urine core is greater than that of the lower core, and the secondary liquid absorption effect of the lower core is better than that of the urine core.

5. The core for urine and feces absorption according to claim 1 or 4, characterized in that: The volume of the polymer particles of the urine core is smaller than the volume of the polymer particles of the lower core.

6. The core for urine and feces absorption according to claim 1, characterized in that: The inner side edge of the urine core is in a wave shape.

7. The core for urine and feces absorption according to claim 1, characterized in that: The thickness of the middle portion of the lower core is smaller than the thickness of the two sides, and a V-shaped guide groove is formed on the top of the lower core or the top of the middle portion of the lower core.

8. The core for urine and feces absorption according to claim 1, characterized in that: The core body further comprises a wrapping layer, which wraps the lower core and the two urine cores.

9. The core for urine and feces absorption according to claim 1, characterized in that: The thickness of the lower core is at least 2.5 times the thickness of the urine core.

10. A diaper with a core for urine and feces absorption according to claim 1, characterized in that: The invention comprises a guide layer, a core body and a leak-proof bottom layer which are arranged in sequence from top to bottom. A through hole is provided in the middle of the guide layer above the stool liquid channel.

Citation Information

Patent Citations

  • 3D flow guide absorption core

    CN209437512U

Cited By

  • Core for urine-feces zoned absorption and production process therefor

    WO2026077257A1