A disposable anti-spill nursing pad

Abstract

The utility model provides a kind of disposable anti-overflow breast pad, including by inside and outside sequentially arranged skin-friendly layer, composite absorption core and waterproof layer;Wherein, the composite absorption core includes three-dimensional support structure layer and three-dimensional absorption structure layer, the three-dimensional support structure layer and the three-dimensional absorption structure layer are in geometric complementary structure, to make the three-dimensional support structure layer and the three-dimensional absorption structure layer cross in three-dimensional space Embedding. In the utility model, the three-dimensional support structure layer and the three-dimensional absorption structure layer of cross embedding can form cross flow network to make liquid evenly distribute diffusion in longitudinal and radial, avoid local saturation, and after absorbing liquid, it can maintain the stability of anti-overflow breast pad curved surface structure, water absorption thickness retention rate is ≥90%, prevent bump;Meanwhile, under the synergistic effect of three-dimensional support structure layer and three-dimensional absorption structure layer, the absorption speed of anti-overflow breast pad can be significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products technology, and in particular to a disposable breast pad. Background Technology

[0002] Breastfeeding women often experience milk leakage due to excessive milk production or delayed suckling by their infants. Existing nursing pads often require the use of regular bras, which can lead to issues such as shifting, slow absorption, and a feeling of stuffiness. While traditional washable nursing pads can hold the absorbent material in place, they are inconvenient to clean and can easily breed bacteria with prolonged use.

[0003] Therefore, there is an urgent need for a disposable nursing pad that combines rapid absorption, dryness and comfort, and prevention of nipple protrusion. Summary of the Invention

[0004] This invention provides a disposable nursing pad that has the advantages of fast absorption, dryness and comfort, and prevention of nipple protrusion.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a disposable breast pad, comprising a skin-friendly layer, a composite absorbent core, and a waterproof layer arranged sequentially from the inside out; wherein, the composite absorbent core comprises a three-dimensional support structure layer and a three-dimensional absorbent structure layer, the three-dimensional support structure layer and the three-dimensional absorbent structure layer having a geometrically complementary structure, so that the three-dimensional support structure layer and the three-dimensional absorbent structure layer are interlocked in three-dimensional space.

[0006] Preferably, the geometric complementary structure is a complementary structure of a regular U-shape and an inverted U-shape or a complementary structure of a regular V-shape and an inverted V-shape.

[0007] More preferably, the geometric complementary structure is a complementary structure of an upright U-shape and an inverted U-shape.

[0008] Preferably, the three-dimensional support structure layer is hydrophilic polyurethane foam, and the three-dimensional absorbent structure layer is superabsorbent resin composite paper.

[0009] More preferably, the three-dimensional absorbent structure layer is bonded to the skin-friendly layer, and the three-dimensional support structure layer is bonded to the waterproof layer.

[0010] Preferably, the area of ​​the interlocking region between the three-dimensional support structure layer and the three-dimensional absorbent structure layer accounts for 40-60% of the area of ​​a single cup of the nursing pad.

[0011] Preferably, the areas where the three-dimensional support structure layer and the three-dimensional absorption structure layer intersect and interlock are provided with a plurality of through holes.

[0012] More preferably, the diameter of the through holes is 0.1-0.3 mm, and the density is 10-50 holes / cm³. 2 .

[0013] Preferably, the skin-friendly layer is a spunlace nonwoven fabric, and the surface of the skin-friendly layer is coated with aloe vera gel, the coating thickness of which is 0.5-1 μm.

[0014] Preferably, the waterproof layer is a water-repellent non-woven fabric.

[0015] Preferably, a microporous membrane breathable layer is further provided between the composite absorbent core and the skin-friendly layer; wherein, the microporous membrane breathable layer is a hot-air nonwoven fabric, and the moisture permeability of the microporous membrane breathable layer is ≥3000g / m². 2 / 24h.

[0016] Preferably, the edges of the skin-friendly layer, the composite absorbent core, and the waterproof layer are fixed by a hot melt adhesive dot matrix.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] In this invention, a composite absorbent core is incorporated into the nursing pad. This core is formed by the interlocking of a geometrically complementary three-dimensional support structure layer and a three-dimensional absorbent structure layer in three-dimensional space. The interlocking three-dimensional support structure layer and the three-dimensional absorbent structure layer can form a cross-flow guiding network, allowing the liquid to be evenly distributed and diffused in the longitudinal and radial directions, avoiding local saturation. Moreover, after absorbing liquid, it can maintain the stability of the curved surface structure of the nursing pad, with a thickness retention rate of ≥90% after water absorption, preventing bumps. At the same time, the absorption speed of the nursing pad can be significantly improved by utilizing the synergistic effect of the three-dimensional support structure layer and the three-dimensional absorbent structure layer. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a disposable breast pad provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the composite absorbent core in a disposable nursing pad provided by this utility model;

[0021] In the diagram: 100: Skin-friendly layer; 200: Composite absorbent core; 300: Waterproof layer; 201: Three-dimensional absorbent structure layer; 202: Three-dimensional support structure layer; 203: Cross-interlocking area; 204: Through hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] This utility model embodiment provides a disposable breast pad, such as Figure 1 As shown, it includes a skin-friendly layer 100, a composite absorbent core 200, and a waterproof layer 300 arranged sequentially from the inside out; wherein, the composite absorbent core 200 includes a three-dimensional support structure layer 202 and a three-dimensional absorbent structure layer 201, the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201 having a geometrically complementary structure, so that the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201 are interlocked in three-dimensional space.

[0024] In this utility model, such as Figure 1 As shown, by setting a composite absorbent core 200 in the nursing pad, the composite absorbent core 200 is obtained by the cross-interlocking of a geometrically complementary three-dimensional support structure layer 202 and a three-dimensional absorbent structure layer 201 in three-dimensional space. The cross-interlocking three-dimensional support structure layer 202 and three-dimensional absorbent structure layer 201 can form a cross-flow guiding network to make the liquid evenly distributed and diffused in the longitudinal and radial directions, avoiding local saturation. Moreover, after absorbing liquid, it can maintain the stability of the curved surface structure of the nursing pad, and the thickness retention rate after water absorption is ≥90%, preventing bumps. At the same time, the absorption speed of the nursing pad can be significantly improved by utilizing the synergistic effect of the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201.

[0025] In this utility model Figure 1 In this invention, the structural layers are peeled off from each other. This is to clearly show the positional relationship between the structural layers of this invention. However, it should be understood that the structural layers of this invention are actually tightly fitted and / or partially fitted together.

[0026] According to some preferred embodiments, the geometric complementary structure is a positive U-shaped and inverted U-shaped complementary structure or a positive V-shaped and inverted V-shaped complementary structure.

[0027] like Figure 2 As shown, according to some preferred embodiments, the geometric complementary structure is a positive U-shaped and an inverted U-shaped complementary structure.

[0028] In this invention, while satisfying the basic curved surface structure of the breast pad, the three-dimensional support structure layer 202 and the three-dimensional absorption structure layer 201 in the composite absorbent core 200 are set as geometrically complementary structures. For example, the three-dimensional support structure layer 202 and the three-dimensional absorption structure layer 201 can be complementary structures of positive U-shape and inverted U-shape, or positive V-shape and inverted V-shape. By cross-interlocking them to form the composite absorbent core 200, and with the cross-interlocking area 203 located in the central area of ​​the breast pad, not only can the three-dimensional absorbent structure layer 201 and the three-dimensional support structure layer 202 be less prone to displacement, but also cross-flow channels can be formed to promote the radial and longitudinal diffusion distribution of liquid, thereby ensuring good liquid absorption speed and good dryness performance of the anti-overflow breast pad.

[0029] Furthermore, this invention reveals that when the three-dimensional support structure layer 202 and the three-dimensional absorption structure layer 201 are complementary structures of a positive U-shape and an inverted U-shape, it is more conducive to the absorption and diffusion of liquid. At the same time, this invention does not specifically limit whether the three-dimensional support structure layer 202 is positively or invertedly U-shaped, as long as the three-dimensional support structure layer 202 and the three-dimensional absorption structure layer 201 are interlocked in a U-shape.

[0030] According to some preferred embodiments, the three-dimensional support structure layer 202 is hydrophilic polyurethane foam, and the three-dimensional absorbent structure layer 201 is superabsorbent resin composite paper; the three-dimensional absorbent structure layer 201 is bonded to the skin-friendly layer 100, and the three-dimensional support structure layer 202 is bonded to the waterproof layer 300.

[0031] According to some preferred embodiments, the thickness of the three-dimensional support structure layer 202 is 0.1-0.3 mm, the porosity is 80%-90%, and the basis weight is 50-120 g / m³. 3 The 201 three-dimensional absorbent structure layer is a wet-process superabsorbent resin composite paper with a basis weight of 90-110 g / m². 2 .

[0032] Unlike traditional simple stacked absorbent layers, this invention utilizes a hydrophilic polyurethane foam as a three-dimensional support structure layer 202, which provides excellent support and liquid absorption. A superabsorbent polymer composite paper as a three-dimensional absorbent structure layer 201 provides excellent liquid absorption and retention. By employing a U-shaped cross-interlocking structure, this structure forms a flow channel, promoting multi-directional liquid distribution and uniform diffusion in the radial and longitudinal directions of the pad, preventing localized saturation and side leakage. Simultaneously, it ensures good mechanical support for the composite absorbent core 200, preventing deformation and protrusion after liquid absorption. Furthermore, the cross-interlocking structure creates micro-air circulation channels, ensuring good comfort. At the same time, the shape-maintaining properties of the hydrophilic polyurethane foam and the rapid water absorption properties of the superabsorbent polymer composite paper are fully utilized through the cross-interlocking structure, avoiding the contradiction of a single material needing to both absorb liquid and bear weight.

[0033] According to some preferred embodiments, the area of ​​the interlocking region 203 between the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201 accounts for 40-60% of the area of ​​a single cup of the nursing pad (for example, 40%, 50% or 60%).

[0034] In this invention, by optimizing the area of ​​the cross-interlocking region 203 (overlapping region) of the three-dimensional support structure layer 202 and the three-dimensional absorption structure side layer in the composite absorbent core 200, and making the cross-interlocking region 203 located in the central region of the breast pad, the breast pad forms a structure that is thick in the central region and thin around the periphery. This not only allows for a better fit to the user's breast, but also ensures good absorption, diffusion, and support performance of the composite absorbent core 200, and further prevents the breast pad from developing bumps after absorbing liquid.

[0035] According to some preferred embodiments, such as Figure 2 As shown, the areas where the three-dimensional support structure layer 202 and the three-dimensional absorption structure layer 201 intersect and are interlocked are provided with a plurality of through holes 204; the diameter of the through holes 204 is 0.1-0.3 mm (for example, it can be 2 mm, 2.5 mm or 3 mm), and the density is 10-50 holes / cm³. 2 (For example, it can be 10 per cm) 2 20 pieces / cm 2 30 pieces / cm 2 40 pieces / cm 2 Or 50 pieces / cm 2 ).

[0036] In this utility model, reference continues. Figure 2By providing several through-holes 204 in the intersecting area 203 of the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201, the through-holes 204 can guide the liquid from the three-dimensional absorbent structure layer 201 to the three-dimensional support structure layer 202, thereby further improving the liquid absorption speed of the composite absorbent core 200. In this way, when the liquid permeates from the skin-friendly layer 100 to the composite absorbent core 200, the three-dimensional absorbent structure layer 201 mainly plays the role of liquid absorption, which can achieve liquid absorption in seconds, and it is not easy to backflow after liquid absorption, ensuring good dryness of the skin-friendly layer 100. When the liquid absorption of the three-dimensional absorbent structure layer 201 reaches saturation, the diffusion speed of the liquid from the three-dimensional absorbent structure layer 201 to the three-dimensional support layer is further improved through the guiding holes 204 at the intersection nodes. Furthermore, the three-dimensional support structure layer 202 will not deform after liquid absorption, and the thickness retention rate after water absorption is ≥90%, thereby maintaining the original curvature of the anti-overflow pad while enhancing the liquid absorption of the composite absorbent core 200.

[0037] It should be noted that the present invention does not impose any particular restrictions on the shape of the through holes, such as circular, elliptical, heart-shaped or triangular, etc. At the same time, the arrangement of the through holes on the three-dimensional support structure layer and the three-dimensional absorption structure layer, as well as the spacing between adjacent through holes, can be adjusted according to actual needs.

[0038] According to some preferred embodiments, the skin-friendly layer 100 is a spunlace nonwoven fabric, and the surface of the skin-friendly layer 100 is coated with aloe vera gel, the coating thickness of which is 0.5-1 μm (for example, it can be 0.5 μm, 0.8 μm or 1 μm).

[0039] In this invention, the skin-friendly layer 100 is made of soft and comfortable all-cotton spunlace nonwoven fabric, and an aloe vera gel layer is coated on the surface that is in contact with the user. The active ingredients in the aloe vera gel can not only immediately soothe the sensitive and swollen breast skin during lactation, but also compensate for the roughness of the nonwoven fabric after it absorbs moisture, thus enhancing the skin-friendliness and comfort of the nursing pad.

[0040] According to some preferred embodiments, the waterproof layer 300 is a water-repellent nonwoven fabric.

[0041] In this invention, by setting a water-repellent non-woven fabric on the outer layer of the composite absorbent core 200, it is possible to prevent backflow and staining of clothing when there is too much liquid.

[0042] According to some preferred embodiments, a microporous membrane breathable layer is further provided between the composite absorbent core 200 and the skin-friendly layer 100; wherein, the microporous membrane breathable layer is a hot-air nonwoven fabric, and the moisture permeability of the microporous membrane breathable layer is ≥3000g / m³. 2 / 24h (for example, it can be 3000g / m 2 / 24h, 4000g / m 2 / 24h or 5000g / m 2 / 24h).

[0043] In this invention, a microporous membrane breathable layer with micropores is further provided between the skin-friendly layer 100 and the composite absorbent core 200. The presence of this microporous membrane breathable layer can accelerate the expulsion of moisture, thereby further enhancing the dryness performance of the nursing pad.

[0044] According to some preferred embodiments, the edges of the skin-friendly layer 100, the composite absorbent core 200, and the waterproof layer 300 are fixed by a hot melt adhesive dot matrix.

[0045] In this invention, the edges of the skin-friendly layer 100, the composite absorbent core 200, and the waterproof layer 300 are fixed with hot melt adhesive in a dot matrix, thereby preventing displacement between the layers. At the same time, when fixing the dot matrix, the intersecting area 203 of the three-dimensional support structure layer 202 and the three-dimensional absorbent structure layer 201 in the composite absorbent core 200 should be avoided to prevent damage to the structure of the composite absorbent core 200.

[0046] Meanwhile, in this utility model, an anti-breast-leaking bra is formed by setting elastic shoulder straps on the aforementioned anti-breast-leaking pads and cooperating with elastic underbands. The elastic underbands can be made of spandex blended elastic fibers, and anti-slip silicone dots are provided at the shoulder strap connection.

[0047] This invention is applicable to the field of nursing care products for breastfeeding women, and can be extended to sports bras, postoperative care bras, and other intimate apparel that require rapid liquid absorption.

[0048] To more clearly illustrate the technical solution and advantages of this utility model, the following description, in conjunction with embodiments, further explains this utility model.

[0049] Example 1

[0050] A disposable nursing pad includes, from the inside out, a skin-friendly layer (all-cotton spunlace nonwoven fabric, with a 1μm aloe vera gel layer on the surface), a microporous breathable layer (moisture permeability 3500g / m²), and a microporous breathable layer. 2 The structure consists of a 24-hour hot-air nonwoven fabric, a composite absorbent core, and a waterproof layer (PE water-repellent nonwoven fabric, 0.3mm thick); the composite absorbent core includes a three-dimensional support structure layer (hydrophilic polyurethane foam, 60g / cm³). 3 (2.5mm thick, 85% porosity) and a three-dimensional absorbent structure layer (wet-processed polymer resin composite paper, 90g / m²). 2The three-dimensional absorbent layer is bonded to the skin-friendly layer, and the three-dimensional support layer is bonded to the waterproof layer. The three-dimensional support layer and the three-dimensional absorbent layer are complementary structures with an upright U-shape and an inverted U-shape, respectively, so that the three-dimensional support layer and the three-dimensional absorbent layer interlock in three-dimensional space. The area of ​​the interlocking area accounts for 50% of the area of ​​a single cup of the nursing pad. Each area of ​​the interlocking area of ​​the three-dimensional support layer and the three-dimensional absorbent layer is provided with several circular through holes (pore diameter of 0.2mm, pore density of 30 / cm). 2 The edges of the skin-friendly layer, composite absorbent core, and waterproof layer are fixed with hot melt adhesive dots to form a nursing pad.

[0051] Comparative Example 1

[0052] A disposable nursing pad includes, from the inside out, a skin-friendly layer (spunbond fabric liner), an absorbent layer (sanitary liner paper wrapped with fluff pulp and superabsorbent resin), and a PE bottom film.

[0053] In this utility model, the performance of the anti-overflow nursing pad of Embodiment 1 was tested, and the performance test results are shown in Table 1.

[0054] Performance testing method: On a 45° inclined platform, 36°C physiological saline was added to the sample absorption part of Example 1 and Comparative Example 1 at a single point 15cm from the bottom of the platform using a funnel with a flow rate of 5mL / s. The bottom of the funnel was 0.5cm from the sample addition point, and the single addition volume was 50mL. The absorption completion time was recorded as the absorption rate. 5min after the absorption was completed, the thickness at the addition point was measured using a thickness gauge. The thickness retention rate after absorption was calculated as (original thickness - (thickness after absorption - original thickness)) / original thickness * 100%. The surface humidity was measured using a humidity meter. The sample to be tested was immersed in a sufficient amount of 25°C physiological saline water and allowed to stand for 30min. After draining for 10min, it was weighed, and the difference between the weight and the original weight was used to obtain the absorption capacity.

[0055] Table 1

[0056]

[0057] As shown in Table 1, the nursing pad in Example 1 has a single-sided absorption capacity of ≥220mL (simulating a milk flow rate of 5mL / s) and a thickness retention rate of more than 92% after absorption. Compared with the ordinary nursing pad in Comparative Example 1, the nursing pad in Example 1 has a significantly improved absorption rate and a significantly reduced surface humidity.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. The parts of this utility model that are not described in detail are technologies known to those skilled in the art.

Claims

1. A disposable nursing pad, characterized in that: It includes a skin-friendly layer, a composite absorbent core, and a waterproof layer arranged sequentially from the inside out; wherein, the composite absorbent core includes a three-dimensional support structure layer and a three-dimensional absorbent structure layer, the three-dimensional support structure layer and the three-dimensional absorbent structure layer having a geometrically complementary structure, so that the three-dimensional support structure layer and the three-dimensional absorbent structure layer are interlocked in three-dimensional space.

2. The nursing pad according to claim 1, characterized in that, The geometric complementary structure is either a positive U-shaped and an inverted U-shaped complementary structure or a positive V-shaped and an inverted V-shaped complementary structure.

3. The nursing pad according to claim 2, characterized in that, The geometrically complementary structure is a complementary structure of an upright U-shape and an inverted U-shape.

4. The nursing pad according to claim 1 or 2, characterized in that, The three-dimensional support structure layer is hydrophilic polyurethane foam, and the three-dimensional absorbent structure layer is superabsorbent resin composite paper; and / or The three-dimensional absorbent structure layer is bonded to the skin-friendly layer, and the three-dimensional support structure layer is bonded to the waterproof layer.

5. The nursing pad according to claim 1, characterized in that, The area where the three-dimensional support structure layer and the three-dimensional absorbent structure layer intersect and interlock accounts for 40-60% of the area of ​​a single cup of the nursing pad.

6. The nursing pad according to claim 1, characterized in that, The areas where the three-dimensional support structure layer and the three-dimensional absorption structure layer intersect and interlock are provided with a plurality of through holes; and / or The diameter of the through holes is 0.1-0.3 mm, and the density is 10-50 holes / cm³. 2 .

7. The nursing pad according to claim 1, characterized in that, The skin-friendly layer is a spunlace nonwoven fabric, and the surface of the skin-friendly layer is coated with aloe vera gel, the coating thickness of which is 0.5-1μm.

8. The nursing pad according to claim 1, characterized in that, The waterproof layer is a water-repellent non-woven fabric.

9. The nursing pad according to claim 1, characterized in that, A microporous membrane breathable layer is further provided between the composite absorbent core and the skin-friendly layer; wherein, the microporous membrane breathable layer is a hot-air nonwoven fabric, and the moisture permeability of the microporous membrane breathable layer is ≥3000g / m². 2 / 24h.

10. The nursing pad according to claim 1, characterized in that, The edges of the skin-friendly layer, the composite absorbent core, and the waterproof layer are fixed with hot melt adhesive dots.

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