A sanitary napkin that absorbs dry air instantly and freezes the tide

Abstract

The present invention relates to the technical field of sanitary products, and specifically refers to a dry, instantaneous, and tide-stopping sanitary napkin, which includes, from top to bottom, a surface layer for menstrual blood penetration, a first guide layer for menstrual blood diffusion, an inscribed hollowed-out blue chip for forming a basin-like shape with a low center and high surroundings in the middle of the sanitary napkin, a second guide layer for menstrual blood diffusion, an absorbent core for menstrual blood absorption, and a bottom film for preventing menstrual blood penetration. A dumbbell-shaped hollowed-out blue chip is built in between the surface layer of the sanitary napkin and the absorbent core, the blue chip is located between the upper guide layer non-woven fabric and the lower guide layer non-woven fabric, the blue chip is a composite dust-free paper, and the hollowed-out blue chip and the guide groove form a basin-like shape in the middle of the sanitary napkin, which is used to stop women's tides and prevent side leakage and back leakage.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary products, in particular to a sanitary napkin which can absorb dryness, instantaneously and freeze tide. Background Art

[0002] Most of the sanitary napkins currently on the market have a guide layer of non-woven fabric under the surface layer to increase the infiltration speed. However, when women have menstrual tides, they still cannot achieve instant absorption and are prone to side leakage. In order to improve the side leakage problem caused by untimely absorption of menstrual blood during menstrual tides, some sanitary napkins currently have a central convex cotton core built into the center to quickly absorb blood flowing out of the private parts. However, the central convex cotton core presses against the female private parts and cannot keep the private parts dry. At the same time, the central convex cotton core contacts and rubs against the female private parts, reducing the wearing comfort. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a sanitary napkin with dry instant absorption and fixed tide surge. By optimizing the structure of the sanitary napkin, it not only has the effect of quickly absorbing menstrual blood, but also can fix menstrual blood when women have menstrual surges to prevent side leakage and back leakage.

[0004] A sanitary napkin that is dry, instantaneous and can freeze tides, comprising, from top to bottom, a surface layer for menstrual blood to penetrate, a first guide layer for menstrual blood to diffuse, an inscribed and hollowed-out blue chip for forming a basin-like shape with a low center and high surroundings in the middle of the sanitary napkin, a second guide layer for menstrual blood to diffuse, an absorbent core for menstrual blood absorption and a bottom film for preventing menstrual blood from penetrating, wherein the inscribed and hollowed-out edge of the blue chip is provided with a guide groove for fixing the blue chip.

[0005] Furthermore, the blue chip has a double-layer structure, the upper layer of which is an air-laid fiber hot air non-woven fabric, which is blue in color; and the lower layer is wood pulp fiber glued dust-free paper.

[0006] Furthermore, the blue chip has a length of 112-128 mm, a width of 32-40 mm, a gram weight of 70-90 gsm, and a thickness of 1.0-2.0 mm.

[0007] Furthermore, the water absorption rate of the blue chip is not less than 10g / g.

[0008] Furthermore, the inscribed hollowing of the blue chip is dumbbell-shaped, the inscribed hollowing dumbbell is arranged in the front-to-back direction, and the length of the inscribed dumbbell is 45-60 mm, the widest part of the inscribed dumbbell is 12-16 mm, and the narrowest part is 8-12 mm.

[0009] Furthermore, the surface layer includes a water-repellent non-woven fabric layer and a perforated non-woven fabric layer stacked in sequence, wherein the water-repellent non-woven fabric layer partially covers the perforated non-woven fabric layer and is arranged on both sides of the perforated non-woven fabric layer.

[0010] Furthermore, the specification of the water-repellent non-woven fabric layer is 25-30 gsm, and the specification of the perforated non-woven fabric layer is 25 gsm-35 gsm.

[0011] Furthermore, the first guide layer is a hot air non-woven fabric guide layer, and its specification is 30-35gsm.

[0012] Furthermore, the second guide layer is a hot-rolled non-woven guide layer with a specification of 20-25gsm.

[0013] Furthermore, the absorbent core is a fluff pulp polymer or a double layer of absorbent paper wrapped with upper and lower toilet papers.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. A dumbbell-shaped hollowed-out blue chip is built into the surface layer and the absorbent core of the sanitary napkin. The blue chip is located between the upper guide layer non-woven fabric and the lower guide layer non-woven fabric. The blue chip is a composite dust-free paper. The hollowed-out blue chip and the guide groove form a basin shape in the middle of the sanitary napkin, which is used to freeze the female tide and prevent side leakage and back leakage.

[0016] 2 The present invention can freeze the tide through the basin shape in the middle position, and at the same time leave space between the female private parts, which can not only keep the female private parts dry, but also improve the comfort of women. The upper guide layer non-woven fabric and the long fiber non-woven fabric of the blue chip can quickly conduct the blood downward. The dust-free paper layer in the blue chip can be used to temporarily store blood. The lower guide layer non-woven fabric can better diffuse and distribute the blood to the absorption layer, so as to achieve dry and instant absorption and prevent side leakage and rear leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a sanitary napkin according to Example 1 of the present invention;

[0018] Figure 2 is a cross-sectional view of a sanitary napkin according to Example 1 of the present invention;

[0019] Figure 3 is a schematic diagram of the structure of another sanitary napkin according to Example 1 of the present invention;

[0020] Figure 4 This is a schematic diagram of the blue chip structure according to Embodiment 1 of the present invention;

[0021] Figure 5 This is a schematic diagram of the surface structure of a sanitary napkin according to an extended embodiment 1 of embodiment 1 of the present invention;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the surface layer of a sanitary napkin according to Example 2 of the present invention;

[0023] Figure 7 Schematic diagram of the cross-sectional structure of a blue chip according to Example 3 of the present invention.

[0024] Surface layer 1, water-repellent non-woven fabric layer 10, perforated non-woven fabric layer 11, liquid seepage holes 110, first guide layer 2, blue core chip 3, incised hollow 30, guide groove 300, long fiber hot air non-woven fabric 31, wood pulp fiber glued dust-free paper 32, second guide layer 4, absorbent core 5, bottom film 6. DETAILED DESCRIPTION

[0025] The present invention will be further described below through examples and drawings.

[0026] In the following embodiments, the direction extending along the length of the sanitary napkin is defined as the longitudinal direction, and the direction extending along the width of the sanitary napkin is defined as the transverse direction. When the sanitary napkin is used, the direction in front of the human body is defined as the front end of the sanitary napkin, and the direction behind the human body is defined as the rear end of the sanitary napkin. The layer close to the human body is the surface layer 1 or the upper layer, and the layer away from the human body is the bottom layer or the lower layer.

[0027] Example 1

[0028] like Figure 1-2 As shown, this embodiment provides a sanitary napkin with dry instant absorption and freezing tide surge, which includes, from top to bottom, a surface layer 1 for menstrual blood penetration, a first guide layer 2 for menstrual blood diffusion, an inscribed hollow 30 for forming a blue chip 3 in the middle of the sanitary napkin in the shape of a basin with a low middle and high surroundings, a second guide layer 4 for menstrual blood diffusion, an absorbent core 5 for menstrual blood absorption, and a bottom film 6 to prevent menstrual blood penetration, wherein the inscribed hollow edge of the blue chip is provided with a guide groove for fixing the blue chip (the guide groove is at Figure 2 not shown).

[0029] In this embodiment, the blue chip 3 is a double-layer structure, the upper layer of which is an air-laid fiber hot air non-woven fabric, and its color is blue; the lower layer is wood pulp fiber glued dust-free paper 32.

[0030] The blue chip 3 has a length of 112-128 mm, a width of 32-40 mm, a gram weight of 70-90 gsm, and a thickness of 1.0-2.0 mm. Because the labia majora of most Asian women's vulva is about 70-80 mm long and 20-30 mm wide, the labia majora wraps the labia minora, and the gap area between the labia minora on both sides is the vaginal vestibule, which is about 43 mm long, with an external urethral opening in the front and a vaginal opening in the back. The dumbbell-shaped hollowed-out shape and size are close to the vaginal vestibule, external urethral opening and vaginal opening of the vulva. The blue chip 3 fits the labia majora, so that women can keep their private parts dry during the tide.

[0031] In order to ensure the liquid absorption of the blue chip 3, the water absorption rate of the blue chip 3 is not less than 10g / g.

[0032] In this embodiment, the shape of the blue chip 3 can be set as needed, for example, it can also be a dumbbell shape, such as Figure 3 As shown, the inner hollowing 30 of the blue chip 3 is dumbbell-shaped, and the dumbbell-shaped inner hollowing 30 is arranged in the front-to-back direction, and the length of the inner dumbbell-shaped is 45-60mm, the widest part of the inner dumbbell-shaped width is 12-16mm, and the narrowest part is 8-12mm. This shape can better fit the female private parts, keep the private parts dry, and the basin shape of the inner dumbbell-shaped can maximize the menstrual blood when the menstrual blood flows back and forth during the menstrual tide, and the effect is better. Figure 4 As shown, the blue chip 3 is hollowed out in an inscribed dumbbell shape, and a dumbbell-shaped guide groove 300 is provided along the edge of the inscribed hollow 30 for fixing the position of the blue chip 3, so that the middle position of the sanitary napkin forms a basin shape with a low middle and high surroundings.

[0033] As an extended embodiment 1 of this embodiment, Figure 5 As shown, in the present extended embodiment 1, in order to keep the surface layer 1 dry, the surface layer 1 includes a water-repellent non-woven fabric layer 10 and a perforated non-woven fabric layer 11 stacked in sequence, wherein the water-repellent non-woven fabric layer 10 partially covers the perforated non-woven fabric layer 11 and is arranged on both sides of the perforated non-woven fabric layer 11. The water-repellent non-woven fabric layer 10 can keep the surface dry, and the perforated non-woven fabric layer 11 located in the middle can allow menstrual blood to seep in quickly.

[0034] Specifically, in the present extended embodiment 1, the specification of the water-repellent non-woven fabric layer 10 is 25-30 gsm, for example, 28 gsm, and the specification of the perforated non-woven fabric layer 11 is 25 gsm-35 gsm, for example, 30 gsm.

[0035] In the above embodiment, the first guide layer 2 and the second guide layer 4 are also provided to accelerate the infiltration speed of menstrual blood. Specifically, the first guide layer 2 is a hot air non-woven guide layer with a specification of 30-35gsm, and the second guide layer 4 is a hot rolled non-woven guide layer with a specification of 20-25gsm. The first guide layer 2 non-woven fabric and the long fiber non-woven fabric of the blue chip 3 allow the blood to be quickly conducted downward, and the dust-free paper layer in the blue chip 3 can be used to temporarily store blood. The second guide layer 4 non-woven fabric allows the blood to be better diffused and distributed to the absorption layer, achieving dry and instant absorption, and preventing side leakage and rear leakage. In the above embodiment, the absorbent core 5 is a fluff pulp polymer or a double-layer absorbent paper wrapped with upper and lower toilet paper.

[0036] As shown in Table 1, this is the comparative data of the standard synthetic liquid permeability of sanitary napkins with blue chips and without blue chips when other structures are the same as in Example 1. It can be seen that the sanitary napkins with blue chips are superior to those without blue chips in terms of absorption time and load-bearing re-seepage.

[0037] Table 1 Comparison of the penetration performance of sanitary napkins with blue chips and those without blue chips

[0038]

[0039] Example 2

[0040] This embodiment is an extended embodiment of the embodiment 1. This embodiment provides a surface layer 1 structure of a sanitary napkin that is dry, instantaneous, and able to freeze tides.

[0041] like Figure 6 As shown, the surface layer 1 of the sanitary napkin is a double-layer structure, the upper layer of which is a water-repellent non-woven fabric layer 10, and the lower layer is a perforated non-woven fabric layer 11, wherein the water-repellent non-woven fabric layer 10 is arranged on the left and right sides of the perforated non-woven fabric layer 11, and the thickness of the water-repellent non-woven fabric layer 10 is 0.1-0.5mm, and its thickness and density increase successively from the position close to the central axis of the sanitary napkin to both sides, that is, the thickness on the side close to the central axis of the sanitary napkin is 0.1mm, and the thickness on the two sides close to the sanitary napkin is 0.5mm, thereby forming a height difference between the inside and the outside. Similarly, the density of the water-repellent non-woven fabric layer 10 close to the central axis of the sanitary napkin is less than the density on both sides. This arrangement can reduce the diffusion of menstrual blood to both sides, so that the menstrual blood is gathered in the central area of ​​the sanitary napkin to a greater extent. In order to ensure the liquid absorption of the surface layer 1 of the sanitary napkin, the width of the perforated non-woven fabric layer 11 is not less than half of the width of the surface layer 1 of the sanitary napkin. In the present embodiment, the thickness of the perforated non-woven fabric layer 11 is 0.5-1 mm, and the apertures of the seepage holes 110 are alternatingly large and small, and seepage grooves are provided between adjacent seepage holes 110. The setting of the seepage grooves can accommodate the amount of menstrual blood to a large extent and prevent it from flowing on the surface of the sanitary napkin. The larger seepage holes 110 can accelerate the penetration of menstrual blood, but are prone to reverse osmosis. The smaller seepage holes 110 can reduce or avoid reverse osmosis of menstrual blood to a certain extent. The two are performed alternately, which can ensure a faster seepage speed and reduce the reverse osmosis of menstrual blood.

[0042] As an extension of this embodiment, the perforated non-woven fabric layer 11 has a double-layer structure, wherein the larger seepage holes 110 of the upper layer are opposite to the smaller seepage holes 110 of the lower layer, and the smaller seepage holes 110 of the upper layer are opposite to the larger seepage holes 110 of the lower layer, and the seepage holes 110 are all in a cone shape with larger top and smaller bottom, so as to meet the requirement of rapid seepage while avoiding reverse osmosis of menstrual blood.

[0043] Example 3

[0044] This embodiment is another extended embodiment of the embodiment 1, and provides another blue chip 3 structure of a sanitary napkin that can absorb dryness, instantaneously and freeze tides in this embodiment.

[0045] In this embodiment, if Figure 7As shown, the air-laid long-fiber hot-air non-woven fabric 31 on the upper layer of the blue chip 3 is a double-layer structure, wherein the fibers of the upper layer of the long-fiber hot-air non-woven fabric 31 are regularly arranged along the length direction of the sanitary napkin, and the fiber fineness is 1.5-2.5D; the lower fiber web is formed by combing curly sheath-core fibers, and the fineness of the lower fiber web is 1.2-1.6D. The fiber fineness of the lower fiber web is smaller than that of the upper fiber web, and the spiral mesh structure formed by the second fiber web increases its internal penetration space, thereby facilitating the penetration of menstrual blood.

[0046] For example, the upper fiber web may use sheath-core bicomponent fibers.

[0047] The wood pulp fiber-glued dust-free paper 32 at the bottom layer of the blue chip 3 has a thickness of 0.5-1 mm, which can be used to temporarily store blood.

[0048] In this embodiment, the inner cutout 30 of the blue chip 3 is dumbbell-shaped, and the front-to-back width of the dumbbell is 15 mm, and the width in the middle is the narrowest, which is 10 mm.

[0049] It should be noted that, in the description of the present invention, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience and simplification of the description of the present invention, rather than indicating or implying that the devices or components shown must have a specific orientation or positional relationship, and therefore cannot be understood as limitations on the present invention. The "connection" in the present invention should be understood as a broad connection, such as a mechanical connection, an electrical connection, or a connection between components, which can be a direct connection or an indirect connection through a medium. For those skilled in the art, the meaning of the above terms in the present invention can be specifically understood according to actual conditions.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sanitary napkin with dry instant absorption and fixed tide surge, characterized by: The sanitary napkin comprises, from top to bottom, a surface layer for menstrual blood to penetrate, a first guide layer for menstrual blood to diffuse, a blue core plate which is cut inwardly and hollowed out to form a basin shape with a low center and high surroundings in the middle of the sanitary napkin, a second guide layer for menstrual blood to diffuse, an absorbent core body for menstrual blood absorption, and a bottom film to prevent menstrual blood from penetrating, wherein the inwardly cut and hollowed-out edge of the blue core plate is provided with a guide groove for fixing the blue core plate; The surface layer comprises a water-repellent non-woven fabric layer and a perforated non-woven fabric layer stacked in sequence, wherein the water-repellent non-woven fabric layer partially covers the perforated non-woven fabric layer and is arranged on both sides of the perforated non-woven fabric layer, and the thickness and density of the water-repellent non-woven fabric layer increase from the position close to the central axis of the sanitary napkin to both sides, thereby forming a height difference between the inner side and the outer side; Among them, the perforated non-woven fabric layer is a double-layer structure and is provided with a plurality of seepage holes. The apertures of the seepage holes are alternating in size, and seepage grooves are provided between adjacent seepage holes. The larger seepage holes in the upper layer are opposite to the smaller seepage holes in the lower layer, and the smaller seepage holes in the upper layer are opposite to the larger seepage holes in the lower layer. The seepage holes are in a cone shape with larger holes on the top and smaller holes on the bottom.

2. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 1, characterized in that: The blue chip is a double-layer structure, the upper layer of which is air-laid fiber hot air non-woven fabric, and the color of which is blue; the lower layer is wood pulp fiber glued dust-free paper.

3. A sanitary napkin with dry instant absorption and tidal surge blocking function according to claim 2, characterized in that: The blue chip has a length of 112-128 mm, a width of 32-40 mm, a gram weight of 70-90 gsm, and a thickness of 1.0-2.0 mm.

4. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 2, characterized in that: The water absorption rate of the blue chip is not less than 10g / g.

5. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 2, characterized in that: The inscribed hollowing of the blue chip is in a dumbbell shape, which is arranged in the front-to-back direction, and the length of the inscribed dumbbell is 45-60 mm, the widest part of the inscribed dumbbell is 12-16 mm, and the narrowest part is 8-12 mm.

6. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 1, characterized in that: The specification of the water-repellent non-woven fabric layer is 25-30 gsm, and the specification of the perforated non-woven fabric layer is 25 gsm-35 gsm.

7. A sanitary napkin with dry, instantaneous absorption and tidal surge-free properties according to any one of claims 1 to 6, characterized in that: The first guide layer is a hot air nonwoven guide layer, and its specification is 30-35gsm.

8. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 7, characterized in that: The second guide layer is a hot-rolled non-woven guide layer with a specification of 20-25gsm.

9. A sanitary napkin with dry instant absorption and fixed tide surge according to claim 8, characterized in that: The absorbent core is a fluff pulp polymer or a double-layer absorbent paper wrapped with upper and lower toilet papers.

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