Three-dimensional leakage-proof partition edge for paper diaper and paper diaper

Abstract

The utility model relates to the field of disposable hygienic products, and discloses a paper diaper and a three-dimensional leakage-proof partition edge for the same. The three-dimensional leakage-proof partition edge for the paper diaper comprises a non-woven fabric wrapping layer, an elastic component is arranged in the upper space of the non-woven fabric wrapping layer, and the elastic component comprises a first elastic yarn, a second elastic yarn and a third elastic yarn which are sequentially arranged at intervals from top to bottom; the denier number of the first elastic yarn, the denier number of the second elastic yarn and the denier number of the third elastic yarn are all smaller than 350 dtex, and the denier number of the first elastic yarn, the denier number of the second elastic yarn and the denier number of the third elastic yarn are sequentially increased from top to bottom. The denier number of the first elastic yarn, the denier number of the second elastic yarn and the denier number of the third elastic yarn are sequentially increased, the denier number of the elastic yarn is reduced, the resilience force of the three-dimensional leakage-proof partition edge is distributed in a mode that the upper portion is weak and the lower portion is strong, the resilience force of the spandex yarn on the upper portion directly making contact with the skin is soft, the skin cannot be pressed, and tightening marks are not prone to being generated.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a three-dimensional leak-proof partition for diapers and the diapers. Background Art

[0002] In the baby diaper market, common complaints include diaper rash, urine leakage, and strangulation. Due to varying weights and body shapes, waistlines and crotch guards can often not fit properly. To minimize strangulation, many consumers choose a larger size. However, this larger size can also lead to urine leakage.

[0003] The mainstream three-dimensional leak-proof partition designs on the domestic market are as follows:

[0004] Please refer to Figure 1 Existing three-dimensional leak-proof barriers are primarily found on both sides of the topsheet of baby diapers. They are primarily made of elastic spandex yarn and SMS spunbond water-repellent fabric, bonded together with hot-melt adhesive. Once bonded, the height of the three-dimensional barriers is typically 30-50mm, effectively preventing urine from leaking out.

[0005] The spandex yarn currently used in three-dimensional leak-proof hems requires strong resilience to achieve a good three-dimensional effect. Therefore, the spandex yarn used is typically 600-800 dtex, with 2-3 strands distributed on each side, and the spacing between the yarns controlled at approximately 4-8mm. The SMS spunbond water-repellent fabric used is generally weighted at around 10-15gsm to ensure a certain degree of resistance to hydrostatic pressure. While this provides some protection against side leaks, its strong elasticity can easily cause marks on the skin. Utility Model Content

[0006] The purpose of the utility model is to provide a three-dimensional leak-proof partition for diapers and diapers, which can effectively block urine on both sides while optimizing the overall feel to reduce skin marks and improve overall comfort.

[0007] In order to achieve the above-mentioned purpose, on the one hand, the utility model provides a three-dimensional leak-proof partition for diapers, comprising a non-woven fabric wrapping layer, an elastic component is arranged in the upper space of the non-woven fabric wrapping layer, and the elastic component comprises a first elastic thread, a second elastic thread and a third elastic thread which are arranged in sequence from top to bottom, the denier of the first elastic thread, the second elastic thread and the third elastic thread are all less than 350dtex, and the denier of the first elastic thread, the second elastic thread and the third elastic thread increases in sequence from top to bottom.

[0008] Preferably, the denier of the first elastic yarn, the second elastic yarn and the third elastic yarn is 100 dtex-320 dtex.

[0009] Preferably, the denier of the first elastic yarn is 140 dtex.

[0010] Preferably, the denier of the second elastic yarn is 210 dtex.

[0011] Preferably, the denier of the third elastic yarn is 310 dtex.

[0012] Preferably, two of the first elastic thread, the second elastic thread and the third elastic thread are provided, and the distance between each two adjacent elastic threads is 1-3 mm.

[0013] Preferably, the width of the elastic area covered by the elastic component is 9-11 mm.

[0014] Preferably, the first elastic thread, the second elastic thread and the third elastic thread are all spandex threads.

[0015] On the other hand, the utility model further discloses a diaper, which includes the above-mentioned three-dimensional leak-proof partition for diapers.

[0016] Through the above technical solution, the deniers of the first elastic thread, the second elastic thread and the third elastic thread are set in increasing order, and the denier of the elastic thread is reduced, so that the resilience of the three-dimensional leak-proof partition is weak at the top and strong at the bottom. The upper spandex thread that directly contacts the skin has a soft resilience, does not oppress the skin, and is not prone to marks. The lower part of the three-dimensional leak-proof partition that contacts the skin less uses an elastic thread with a larger denier. Its larger resilience can ensure that the three-dimensional guardrails on both sides can stand up normally. While effectively reducing skin marks, it effectively reduces the chance of leakage and improves overall comfort.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 The figure shows the structure of the diaper and the leak-proof partition in the prior art;

[0020] Figure 2 A schematic diagram of a diaper and a three-dimensional leak-proof edge structure according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0021] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention. Example 1

[0022] Please refer to Figure 2 The present embodiment provides a three-dimensional leak-proof partition for diapers, including a non-woven fabric wrapping layer 1, an elastic component 2 is arranged in the upper space of the non-woven fabric wrapping layer 1, and the elastic component 2 includes a first elastic thread 21, a second elastic thread 22 and a third elastic thread 23 which are arranged in sequence from top to bottom. The denier of the first elastic thread 21, the second elastic thread 22 and the third elastic thread 23 are all less than 350 dtex, and the denier of the first elastic thread 21, the second elastic thread 22 and the third elastic thread 23 increases from top to bottom.

[0023] Specifically, the elastic yarn in this embodiment is spandex yarn, and the nonwoven wrapping layer is SMS spunbond water-repellent nonwoven fabric. The spandex yarn denier is selected to be below 350 dtex. This finer gauge provides a softer rebound, unlike the direct rebound of coarser denier spandex yarns such as 600-800 dtex. By replacing a single coarse spandex yarn with multiple finer yarns, the side leakage guard feels softer to the touch, reducing the constrictive feeling of the spandex yarn on the skin. This significantly reduces skin pressure, making the side leakage guards more comfortable when worn by babies, thereby reducing the risk of constriction marks.

[0024] In this embodiment, the denier of the first elastic yarn 21, the second elastic yarn 22, and the third elastic yarn 23 is 100-320 dtex. When the spandex yarn is adjusted from 600-800 dtex to 100-320 dtex, the spandex diameter is more than halved. The thinner spandex yarn does not cause significant uneven deformation to the SMS spunbond water-repellent nonwoven fabric, thereby reducing the uneven feel of the three-dimensional guardrail and making the three-dimensional guardrail softer and more comfortable.

[0025] Specifically, the denier of the first elastic yarn 21 is 140dtex, the denier of the second elastic yarn 22 is 210dtex, and the denier of the third elastic yarn 23 is 310dtex, showing a distribution of gradually increasing denier from top to bottom, so that the resilience of the three-dimensional leak-proof partition is weak at the top and strong at the bottom.

[0026] Preferably, the first elastic thread 21, the second elastic thread 22, and the third elastic thread 23 are each provided with two, and the spacing between each two adjacent elastic threads is 1-3 mm. That is, the elastic component 2 is composed of two 140dtex spandex threads at the top, two 210dtex spandex threads at the middle, and two 310dtex spandex threads at the bottom. When using the diaper, the two 140dtex first elastic threads 21 at the top of the three-dimensional leak-proof partition first contact the skin. Their resilience is relatively small and relatively soft. When squeezed by the skin, they will naturally bend and fit, without causing pressure on the skin. The bottom of the three-dimensional leak-proof partition, which contacts less skin, adopts a spandex thread with a larger denier. This can provide a stronger resilience to ensure that the three-dimensional side leakage protection has a better supporting effect, thereby being able to play a role in resisting urine on both sides, ensuring the leak-proof effect when the baby uses it, and reducing the probability of urine leakage.

[0027] Preferably, the elastic area covered by the elastic component 2 has a width of 9-11 mm. In this embodiment, the spacing between adjacent elastic threads is 2 mm, and six elastic threads can form an elastic band area with a total width of 10 mm, which is wider than that of the prior art. A 10 mm wide elastic band has a larger area in contact with the skin than a 5 mm wide elastic band, resulting in less pressure per unit area, less pressure on the skin, and a more comfortable fit.

[0028] In summary, in this embodiment, the deniers of the first elastic thread 21, the second elastic thread 22 and the third elastic thread 23 are set in increasing order, and the denier of the elastic thread is reduced, so that the resilience of the three-dimensional leak-proof partition is weak at the top and strong at the bottom. The upper spandex thread that directly contacts the skin has a soft resilience, does not oppress the skin, and is not prone to marks. The lower part of the three-dimensional leak-proof partition that contacts the skin less uses an elastic thread with a larger denier. Its larger resilience can ensure that the three-dimensional guardrails on both sides can stand up normally. While effectively reducing skin marks, it effectively reduces the chance of leakage and improves overall comfort. Example 2

[0029] This embodiment discloses a diaper including the above-mentioned three-dimensional leak-proof partition for diapers. Specifically, it includes a surface layer and an absorbent composite layer 3, and two three-dimensional leak-proof partitions are provided, and the two three-dimensional leak-proof partitions are symmetrically arranged on both sides of the top of the surface layer and the absorbent composite layer 3.

[0030] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0031] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A three-dimensional leak-proof edge for diapers, characterized in that: It includes a non-woven fabric wrapping layer, and an elastic component is arranged in the upper space of the non-woven fabric wrapping layer. The elastic component includes a first elastic thread, a second elastic thread and a third elastic thread that are arranged in sequence from top to bottom. The denier of the first elastic thread, the second elastic thread and the third elastic thread is less than 350 dtex, and the denier of the first elastic thread, the second elastic thread and the third elastic thread increases in sequence from top to bottom.

2. The three-dimensional leak-proof edge for diapers according to claim 1, characterized in that: The denier of the first elastic yarn, the second elastic yarn and the third elastic yarn is 100 dtex-320 dtex.

3. The three-dimensional leak-proof edge for diapers according to claim 2, characterized in that: The denier of the first elastic yarn is 140 dtex.

4. The three-dimensional leak-proof edge for diapers according to claim 3, characterized in that: The denier of the second elastic yarn is 210 dtex.

5. The three-dimensional leak-proof edge for diapers according to claim 4, characterized in that: The denier of the third elastic yarn is 310 dtex.

6. The three-dimensional leak-proof edge for diapers according to claim 1, characterized in that: There are two of each of the first elastic thread, the second elastic thread and the third elastic thread, and the distance between each two adjacent elastic threads is 1-3 mm.

7. The three-dimensional leak-proof edge for diapers according to claim 6, characterized in that: The width of the elastic area covered by the elastic component is 9-11 mm.

8. The three-dimensional leak-proof edge for diapers according to any one of claims 1 to 7, characterized in that: The first elastic yarn, the second elastic yarn and the third elastic yarn are all spandex yarns.

9. A diaper, characterized in that: The invention comprises the three-dimensional leak-proof partition for diapers according to any one of claims 1 to 8.

Images