Sanitary napkin cotton core capable of rapidly infiltrating and preventing side leakage

Abstract

The utility model relates to the technical field of sanitary napkins, and provides a rapid infiltration side leakage prevention sanitary napkin cotton core which comprises a skin-friendly layer and a waterproof breathable layer, a cotton core body is arranged in an interlayer formed between the skin-friendly layer and the waterproof breathable layer, and the cotton core body comprises an infiltration leakage prevention pad and a diversion absorption pad arranged on the infiltration leakage prevention pad. Liquid falling on the skin-friendly layer can rapidly permeate downwards through the infiltration leakage-proof pad, and the situation that a large amount of liquid is gathered on the skin-friendly layer, consequently, the liquid flows towards the two sides, and side leakage is caused is avoided. After the sanitary napkin is worn, the semi-oval protruding side leakage prevention blocking strips on the infiltration leakage prevention pad can be tightly attached to the skin, the leakage risk is reduced, the outward infiltration speed of liquid can be reduced, the liquid is promoted to fully infiltrate downwards, the liquid infiltrated from the infiltration leakage prevention pad can be rapidly shunted and absorbed through the shunting absorption pad, and the leakage prevention effect of the sanitary napkin is improved. A large amount of liquid is prevented from being gathered at a certain position and can be uniformly absorbed by the shunting absorption pad.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkins, in particular to a fast seepage and side leakage-proof sanitary napkin cotton core. Background Art

[0002] Sanitary napkins are sanitary products used by women during menstruation. The main materials are cotton, non-woven fabrics, pulp or polymers and polymer composite paper formed by the composites of the above materials. The side design is mainly used to prevent side leakage. From the inside to the outside, it is divided into three layers: surface layer, absorbent core, and bottom layer. When using, tear off the paper tape in the middle first, stick the glued side to the middle of the underwear first, and stick the two "ears" to the narrowest part of the crotch. In sanitary napkins, sanitary pads and diapers, the core cotton core absorbent is used to absorb liquid. Therefore, the core absorbent is the key to test product quality. However, the sanitary napkins currently available on the market are all long in length but narrow in width, which leads to the problem of side leakage when the sanitary napkins are used, especially during exercise and sleep, which greatly affects women's physical and mental health.

[0003] After searching, the existing patent (Announcement No.: CN208426316U) discloses a side leakage prevention sanitary napkin cotton core that can quickly achieve longitudinal absorption. The surface of the cotton core is covered with embossing composed of multiple pressure points, and the middle strip part is provided with multiple longitudinal strip embossings, and the longitudinal strip embossings are composed of corrugated pressure lines on both sides and straight strip accelerated longitudinal diffusion pressure lines in the middle. The cotton core can be used in various sanitary napkins, sanitary pads and diapers. The longitudinal strip embossings pressed on its surface expand the absorption area and exert the absorption function of the cotton core as a whole.

[0004] However, the above scheme still has certain shortcomings. When the sanitary napkin is used, the liquid leaking on the sanitary napkin cannot penetrate quickly and cannot effectively buffer and block the side flow of liquid, resulting in poor side leakage prevention performance of the sanitary napkin.

[0005] In view of this, the utility model provides a sanitary napkin cotton core which can quickly seep down and prevent side leakage. Utility Model Content

[0006] The utility model provides a fast seepage anti-side leakage sanitary napkin cotton core, which solves the problem in the related art that the existing sanitary napkins cannot quickly seep the liquid leaked on the sanitary napkin and cannot well buffer and block the side flow of liquid, resulting in poor side leakage prevention performance of the sanitary napkin.

[0007] The technical scheme of the utility model is as follows: a fast seepage and side leakage prevention sanitary napkin cotton core, comprising: a skin-friendly layer and a waterproof and breathable layer arranged on the lower side of the skin-friendly layer, the skin-friendly layer and the waterproof and breathable layer are connected by a side wing of a hemming, and a cotton core body is arranged in the interlayer formed between the skin-friendly layer and the waterproof and breathable layer;

[0008] The cotton core body comprises a seepage anti-leakage pad for rapidly infiltrating the liquid falling on the skin-friendly layer, and a diversion absorption pad is connected to the lower side of the seepage anti-leakage pad for diverting and absorbing the liquid infiltrating from the seepage anti-leakage pad.

[0009] Preferably, the infiltration anti-leakage pad includes a three-dimensional pearl cotton layer, and two groups of anti-side leakage components are symmetrically arranged on both sides of the top of the three-dimensional pearl cotton layer, each group of the anti-side leakage components includes a plurality of anti-side leakage resistance strips, and the plurality of anti-side leakage resistance strips are arranged in parallel along the width direction of the three-dimensional pearl cotton layer.

[0010] Preferably, the cross-sectional shape of the side leakage prevention strip is semi-elliptical, the side leakage prevention strip is made of sponge material, and a silicone sheet is buried inside the side leakage prevention strip to support the side leakage prevention strip.

[0011] Preferably, the three-dimensional pearl cotton layer between the two groups of side leakage prevention components is evenly provided with downward seepage holes, the downward seepage holes are opened through the three-dimensional pearl cotton layer, and the downward seepage holes are inverted cone-shaped holes.

[0012] Preferably, the diversion absorption pad includes a guide cotton layer, and a plurality of longitudinal guide grooves and a plurality of transverse guide grooves are opened on the upper side of the guide cotton layer. The longitudinal guide grooves and the transverse guide grooves are staggered in a grid shape, and a raised absorption storage cotton block is formed between the staggered longitudinal guide grooves and the transverse guide grooves.

[0013] Preferably, a first butterfly-shaped protective wing and a second butterfly-shaped protective wing are respectively arranged on both sides of the waterproof and breathable layer, and a second underwear adhesive layer and a first underwear adhesive layer are respectively arranged at the bottom of the first butterfly-shaped protective wing and the second butterfly-shaped protective wing.

[0014] Preferably, the second underwear adhesive layer and the first underwear adhesive layer are both made of sterile non-adhesive material, and the guide cotton layer and the three-dimensional pearl cotton layer are bonded by hot melt adhesive.

[0015] Preferably, the skin-friendly layer is made of natural ecological cotton, and the waterproof and breathable layer is made of a composite of a polymer waterproof and breathable material and cloth.

[0016] The working principle and beneficial effects of the utility model are:

[0017] In the utility model, a cotton core body is arranged in the interlayer formed between the skin-friendly layer and the waterproof and breathable layer, and the cotton core body includes a seepage leak-proof pad and a diversion absorption pad arranged on the seepage leak-proof pad. The seepage leak-proof pad can be used to quickly infiltrate the liquid falling on the skin-friendly layer, so as to avoid a large amount of liquid gathering on the skin-friendly layer and causing the liquid to flow to both sides, resulting in the occurrence of side leakage. After the sanitary napkin is worn, the semi-elliptical raised side leakage prevention strip on the seepage leak-proof pad will be tightly attached to the skin, reducing the risk of leakage, and can reduce the liquid's extravasation speed, prompting the liquid to fully infiltrate downwards, and the diversion absorption pad can be used to quickly divert and absorb the liquid that seeps from the seepage leak-proof pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the planar structure of a fast seepage and side leakage-proof sanitary napkin cotton core proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the upward planar structure of a fast seepage and side leakage-proof sanitary napkin cotton core proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the cotton core main body assembly structure proposed by the utility model;

[0022] Figure 4 This is a partial cross-sectional structural diagram of the seepage and leak-proof pad proposed by the utility model;

[0023] In the figure: 1. first butterfly-shaped wing; 2. second butterfly-shaped wing; 3. skin-friendly layer; 4. cotton core body; 41. diversion absorption pad; 411. diversion cotton layer; 412. longitudinal diversion groove; 413. transverse diversion groove; 414. absorption storage cotton block; 42. seepage anti-leakage pad; 421. three-dimensional pearl cotton layer; 422. seepage hole; 423. anti-side leakage resistance strip; 424. silicone sheet; 5. hemming side wings; 6. waterproof and breathable layer; 7. first underwear adhesive layer; 8. second underwear adhesive layer. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4The embodiment of the present application discloses a fast seepage and side leakage prevention sanitary napkin cotton core, comprising: a skin-friendly layer 3 and a waterproof and breathable layer 6 arranged on the lower side of the skin-friendly layer 3, the skin-friendly layer 3 and the waterproof and breathable layer 6 are connected by a hemming side wing 5, and a cotton core body 4 is arranged in the interlayer formed between the skin-friendly layer 3 and the waterproof and breathable layer 6. The skin-friendly layer 3 is made of natural ecological cotton, and the waterproof and breathable layer 6 is made of a composite of a polymer waterproof and breathable material and a cloth. The waterproof and breathable material is preferably a PTFE membrane, which has good air permeability and filtration.

[0026] Furthermore, the cotton core body 4 includes a seepage anti-leakage pad 42, which is used to quickly seep the liquid falling on the skin-friendly layer 3. The seepage anti-leakage pad 42 includes a three-dimensional pearl cotton layer 421, and two groups of anti-side leakage components are symmetrically arranged on both sides of the top of the three-dimensional pearl cotton layer 421, each group of anti-side leakage components includes a plurality of anti-side leakage resistance strips 423, and the plurality of anti-side leakage resistance strips 423 are arranged in parallel along the width direction of the three-dimensional pearl cotton layer 421. The cross-sectional shape of the anti-side leakage resistance strip 423 is semi-elliptical, and the anti-side leakage resistance strip 423 is made of sponge material. A silicone sheet 424 is buried inside the anti-side leakage resistance strip 423 to support the anti-side leakage resistance strip 423. The three-dimensional pearl cotton layer 421 located between the two groups of anti-side leakage components is evenly provided with seepage holes 422. The seepage holes 422 penetrate through the three-dimensional pearl cotton layer 421. The seepage holes 422 are inverted cone holes. The evenly distributed inverted cone seepage holes 422 can quickly infiltrate the liquid leaked on the skin-friendly layer 3, thereby preventing the liquid from gathering in large quantities on the skin-friendly layer 3 and causing the liquid to flow to both sides, resulting in the occurrence of side leakage. After the sanitary napkin is worn, the semi-elliptical raised anti-leakage strip 423 will fit tightly against the skin to reduce the risk of leakage. The silicone sheet 424 buried inside the anti-leakage strip 423 provides effective support for the anti-leakage strip 423 and partially separates the middle part of the anti-leakage strip 423. Once the liquid flows rapidly to both sides, the liquid will first be absorbed by the anti-leakage strip 423 made of sponge material, and the silicone sheet 424 arranged inside it will effectively prevent the liquid from continuing to overflow, reduce the liquid's infiltration speed, and prompt the liquid to penetrate downward into the diversion absorption pad 41. There are multiple anti-leakage strips 423 arranged in parallel. When there is a lot of liquid, multiple absorption and blocking functions are realized, thereby greatly improving the anti-leakage performance.

[0027] Furthermore, the cotton core body 4 also includes a diversion absorption pad 41, which is connected to the lower side of the seepage anti-leakage pad 42 and is used to divert and absorb the liquid that seeps from the seepage anti-leakage pad 42. The diversion absorption pad 41 includes a diversion cotton layer 411, and a plurality of longitudinal diversion grooves 412 and a plurality of transverse diversion grooves 413 are provided on the upper side of the diversion cotton layer 411. The longitudinal diversion grooves 412 and the transverse diversion grooves 413 are staggered in a grid shape, and a convex absorption and storage cotton block 414 is formed between the staggered longitudinal diversion grooves 412 and the transverse diversion grooves 413. The longitudinal diversion grooves 412 and the transverse diversion grooves 413 staggered in a grid shape can quickly divert the liquid that seeps from the seepage anti-leakage pad 42, avoid a large amount of liquid gathering in one place, and make the liquid evenly distributed on the diversion absorption pad 41, and absorbed and stored by the absorption and storage cotton block 414.

[0028] It should be noted that the first butterfly wing 1 and the second butterfly wing 2 are respectively arranged on both sides of the waterproof and breathable layer 6, and the second underwear adhesive layer 8 and the first underwear adhesive layer 7 are respectively arranged at the bottom of the first butterfly wing 1 and the second butterfly wing 2. The second underwear adhesive layer 8 and the first underwear adhesive layer 7 are pasted with oily stickers. After tearing off the oily stickers, the sanitary napkin is pasted on the inside of the clothing using the second underwear adhesive layer 8 and the first underwear adhesive layer 7 for easy use. The second underwear adhesive layer 8 and the first underwear adhesive layer 7 are both made of sterile non-adhesive material to prevent secondary contamination when used by women, and the diversion cotton layer 411 and the three-dimensional pearl cotton layer 421 are adhered by hot melt adhesive.

[0029] Working principle and use process: The sanitary napkin is adhered to the inside of the underwear by using the second underwear adhesive layer 8 and the first underwear adhesive layer 7. After that, the person puts on the underwear so that the semi-elliptical raised anti-side leakage resistance strip 423 will be close to the skin, reducing the risk of leakage. The evenly distributed inverted cone-shaped seepage holes 422 can quickly seep the liquid leaked on the skin-friendly layer 3, avoiding the liquid from gathering in large quantities on the skin-friendly layer 3 and causing the liquid to flow to both sides, resulting in the occurrence of side leakage. The silicone sheet 424 embedded inside the anti-side leakage resistance strip 423 provides effective support for the anti-side leakage resistance strip 423 and partially separates the middle part of the anti-side leakage resistance strip 423. Once the liquid flows rapidly to both sides, the liquid will first be absorbed by the anti-side leakage resistance strip 423 made of sponge material, and the silicone sheet 424 arranged inside it effectively prevents the liquid from continuing to overflow, reduces the liquid's exudation speed, and promotes the liquid to penetrate downward into the diversion absorption pad 41. In addition, there are multiple anti-side leakage resistance strips 423 arranged in parallel. When there is a lot of liquid, multiple absorption and blocking functions are achieved, greatly improving the anti-side leakage performance. The longitudinal guide grooves 412 and the transverse guide grooves 413, which are staggeredly distributed in a grid shape, can quickly divert the liquid that seeps from the seepage anti-leakage pad 42, avoid it from gathering in a large amount in one place, and make the liquid evenly distributed on the diversion absorption pad 41, and absorbed and stored by the absorption and storage cotton block 414.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fast seepage and side leakage prevention sanitary napkin cotton core, comprising: A skin-friendly layer (3) and a waterproof and breathable layer (6) arranged on the lower side of the skin-friendly layer (3), wherein the skin-friendly layer (3) and the waterproof and breathable layer (6) are connected via a hemming wing (5), and characterized in that a cotton core body (4) is arranged in the interlayer formed between the skin-friendly layer (3) and the waterproof and breathable layer (6); The cotton core body (4) comprises a seepage anti-leakage pad (42) for rapidly infiltrating liquid that has fallen onto the skin-friendly layer (3); a diversion absorption pad (41) is connected to the lower side of the seepage anti-leakage pad (42) for diverting and absorbing liquid that has infiltrated from the seepage anti-leakage pad (42).

2. A fast seepage and side leakage prevention sanitary napkin cotton core according to claim 1, characterized in that: The seepage anti-leakage pad (42) comprises a three-dimensional pearl cotton layer (421), and two groups of anti-side leakage components are symmetrically arranged on both sides of the top of the three-dimensional pearl cotton layer (421), each group of the anti-side leakage components comprises a plurality of anti-side leakage resistance strips (423), and the plurality of anti-side leakage resistance strips (423) are arranged in parallel along the width direction of the three-dimensional pearl cotton layer (421).

3. A fast seepage and side leakage-proof sanitary napkin cotton core according to claim 2, characterized in that: The cross-sectional shape of the side leakage prevention strip (423) is semi-elliptical. The side leakage prevention strip (423) is made of sponge material. A silicone sheet (424) is embedded inside the side leakage prevention strip (423) to support the side leakage prevention strip (423).

4. A fast seepage and side leakage-proof sanitary napkin cotton core according to claim 3, characterized in that: The three-dimensional pearl cotton layer (421) between the two groups of side leakage prevention components is evenly provided with downward seepage holes (422). The downward seepage holes (422) penetrate through the three-dimensional pearl cotton layer (421) and are inverted cone-shaped holes.

5. The fast seepage and side leakage-proof sanitary napkin cotton core according to claim 1, characterized in that: The diversion absorption pad (41) comprises a flow-guiding cotton layer (411), a plurality of longitudinal flow-guiding grooves (412) and a plurality of transverse flow-guiding grooves (413) are provided on the upper side of the flow-guiding cotton layer (411), the longitudinal flow-guiding grooves (412) and the transverse flow-guiding grooves (413) are staggeredly distributed in a grid shape, and a convex absorption storage cotton block (414) is formed between the staggered longitudinal flow-guiding grooves (412) and the transverse flow-guiding grooves (413).

6. The fast seepage and side leakage-proof sanitary napkin cotton core according to claim 5, characterized in that: A first butterfly-shaped protective wing (1) and a second butterfly-shaped protective wing (2) are respectively arranged on both sides of the waterproof and breathable layer (6), and a second underwear adhesive layer (8) and a first underwear adhesive layer (7) are respectively arranged at the bottom of the first butterfly-shaped protective wing (1) and the second butterfly-shaped protective wing (2).

7. A fast seepage and side leakage-proof sanitary napkin cotton core according to claim 6, characterized in that: The second underwear adhesive layer (8) and the first underwear adhesive layer (7) are both made of sterile non-adhesive material, and the flow-guiding cotton layer (411) and the three-dimensional pearl cotton layer (421) are bonded by hot-melt adhesive.

8. The fast seepage and side leakage-proof sanitary napkin cotton core according to claim 1, characterized in that: The skin-friendly layer (3) is made of natural ecological cotton, and the waterproof and breathable layer (6) is made of a composite of a polymer waterproof and breathable material and cloth.

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