Novel sanitary towel with surface layer direct leakage, middle layer gap bridge and bottom layer absorption

Abstract

The invention relates to the technical field of hygienic products, and discloses a novel sanitary towel with surface layer direct leakage, middle layer gap bridge and bottom layer absorption, which comprises a bottom layer, and the top surface of the bottom layer is connected with a surface layer through a middle layer; the bottom layer comprises a first base body and an absorption part, the first base body is fixedly connected with the middle layer, and the absorption part is arranged on one side of the first base body; a drainage part is arranged on the first base body, the collection position of the drainage part is communicated with the absorption part through a flow guide pipe, and the middle of the flow guide pipe can block connection between the drainage part and the absorption part under the action of external force. Through the arrangement of the drainage part, the flow guide tube and the absorption part, menstrual blood of women can be drained and absorbed; and through the blocking effect of the middle part of the flow guide pipe under the action of external force, the effect of preventing reverse osmosis can be achieved when the absorption part is extruded.

Description

Technical Field

[0001] This invention relates to the field of sanitary products technology, and in particular to a novel sanitary napkin with a direct-leak top layer, a bridging middle layer, and an absorbent bottom layer. Background Technology

[0002] Sanitary napkins, as hygiene products, are primarily used by women during menstruation, absorbing menstrual blood through the absorbent material inside. However, with traditional sanitary napkins, when the absorbent material is subjected to external pressure, the absorbed menstrual blood is prone to backflow, causing discomfort to the user. Therefore, it is necessary to design a new type of sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer to solve the problems existing in the current technology. Summary of the Invention

[0003] Based on the above problems, the purpose of this invention is to provide a novel sanitary napkin with a direct-leak surface layer, a bridging middle layer, and an absorbent bottom layer, so as to solve the problems existing in the prior art.

[0004] The present invention adopts the following technical solutions:

[0005] This invention provides a novel sanitary napkin with a direct-leak surface layer, a bridging middle layer, and an absorbent bottom layer, comprising:

[0006] The bottom layer, the top surface of which is connected to the top layer through the middle layer;

[0007] The bottom layer includes a substrate and an absorbent portion. The substrate is connected to the middle layer, and the absorbent portion is disposed on one side of the substrate. A drainage portion is disposed on the substrate, and the convergence point of the drainage portion is connected to the absorbent portion through a guide tube. The middle part of the guide tube can block the connection between the drainage portion and the absorbent portion under the action of external force.

[0008] Furthermore, the drainage section includes a collecting groove disposed in the middle of the substrate, and the front side of the guide pipe is connected to the collecting groove; multiple drainage grooves are disposed at intervals on both sides of the collecting groove, and the drainage grooves are connected to the collecting groove.

[0009] Furthermore, the number of diversion channels on both sides of the collection channel is the same, and they correspond one-to-one; the two corresponding diversion channels are arranged in a V-shape.

[0010] Furthermore, the absorption section includes a second substrate connected to one side of the substrate, the interior of the second substrate is provided with an absorbent material, and the rear side of the guide tube is connected to the absorbent material.

[0011] Furthermore, the guide pipe includes a front channel, which is disposed on the inner bottom wall of the collecting channel. The end of the front channel is connected to a rear channel via a round pipe. The rear channel extends into the absorbent material, and the round pipe can block the connection between the front channel and the rear channel under external force.

[0012] Furthermore, the bottom of the rear tube groove is provided with multiple sets of through holes spaced apart along the length direction.

[0013] Furthermore, the diameter of the multiple sets of through holes increases sequentially from front to back.

[0014] Furthermore, the middle layer is provided with a through groove 1 corresponding to the collection groove in the middle part, and multiple through grooves 2 are provided on both sides of the through groove 1, and the multiple through grooves 2 are respectively arranged in correspondence with the multiple diversion grooves 1.

[0015] Furthermore, the surface layer has a through groove three arranged in the middle, corresponding to the through groove one, and multiple through grooves four are arranged on both sides of the through groove three, with each of the multiple through grooves four corresponding to one of the multiple through grooves two.

[0016] Furthermore, both the first and second through-slots are configured as V-shaped grooves with a larger upper opening and a smaller lower opening.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0018] This invention, through its drainage section, guide tube, and absorption section, can drain and absorb menstrual blood from women; the blocking effect of the middle part of the guide tube under external force can prevent backflow when the absorption section is squeezed. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the novel sanitary napkin of the present invention, which has a direct leakage surface layer, a bridging middle layer, and an absorbent bottom layer.

[0021] Figure 2 This is a three-dimensional structural diagram of the underlying layer of the present invention;

[0022] Figure 3 This is a top plan view of the bottom layer of the present invention;

[0023] Figure 4 This is a partial side sectional view of the absorption section of the present invention;

[0024] Figure 5 This is an exploded view of the novel sanitary napkin of the present invention, which features direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer.

[0025] Figure 6 This is a schematic diagram of another three-dimensional structure of the novel sanitary napkin of the present invention, which has a direct leakage surface layer, a bridging middle layer, and an absorbent bottom layer.

[0026] Explanation of reference numerals in the attached drawings: 1. Bottom layer; 11. Substrate 1; 111. Drainage section; 1111. Collection channel; 1112. Drainage channel; 12. Absorbent section; 121. Substrate 2; 122. Absorbent material; 13. Guide tube; 131. Front tube channel; 132. Circular tube; 133. Rear tube channel; 1330. Through hole; 2. Middle layer; 21. Through channel 1; 22. Through channel 2; 3. Top layer; 31. Through channel 3; 32. Through channel 4; 33. Side wing; 4. Release paper. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-6 As shown, this embodiment discloses a novel sanitary napkin with a direct-leak surface layer, a bridging middle layer, and an absorbent bottom layer. It includes a bottom layer 1, and the top surface of the bottom layer 1 is connected to the surface layer 3 through the middle layer 2. The bottom layer 1 includes a base 11 and an absorbent part 12. The base 11 is fixedly connected to the middle layer 2, and the absorbent part 12 is disposed on one side of the base 11. A drainage part 111 is disposed on the base 11, and the convergence point of the drainage part 111 is connected to the absorbent part 12 through a guide tube 13. The middle part of the guide tube 13 can block the connection between the drainage part 111 and the absorbent part 12 under the action of external force.

[0029] In this embodiment, the woman's menstrual blood enters the matrix 11 through the surface layer 3 and the middle layer 2, is guided to the collection point through the drainage part 111 of the matrix 11, and then guided to the absorption part 12 through the guide tube 13, where the menstrual blood is absorbed.

[0030] Using this scheme, the drainage section 111, the guide tube 13, and the absorption section 12 can drain and absorb the menstrual blood of women; the blocking effect of the middle part of the guide tube 13 under the action of external force can prevent backflow when the absorption section 12 is squeezed.

[0031] In a further optimized design, the drainage section 111 includes a collection groove 1111 located in the middle of the base 11, and the front side of the guide pipe 13 is connected to the collection groove 1111; multiple drainage grooves 1112 are arranged at intervals on both sides of the collection groove 1111, and the drainage grooves 1112 are connected to the collection groove 1111.

[0032] In this embodiment, the inner bottom wall of the drainage groove 1112 and the collection groove 1111 are flush, and the joint is smooth without steps. Menstrual blood enters the matrix 11 through the middle layer 2. Part of it flows directly into the collection groove 1111, and the other part can flow into the collection groove 1111 through the drainage groove 1112. After the menstrual blood is collected in the collection groove 1111, it is guided to the absorption part 12 through the guide tube 13.

[0033] The scheme is further optimized so that the number of diversion channels 1112 on both sides of the collection channel 1111 is the same and they correspond one to one; the two corresponding diversion channels 1112 are arranged in a V-shape.

[0034] In this embodiment, the extended lines of the center lines of the two corresponding drainage channels 1112 on both sides of the collection channel 1111 intersect, with their tips pointing towards the absorption section 12, and the included angle α is set to 120°-150°.

[0035] In a further optimized design, the absorption section 12 includes a second substrate 121 fixedly connected to the side of the first substrate 11. An absorbent material 122 is disposed inside the second substrate 121, and the rear side of the guide tube 13 is connected to the absorbent material 122.

[0036] In this embodiment, the absorbent material 122 is provided with a cavity for the rear side of the guide tube 13 to be inserted. Menstrual blood flows into the interior of the absorbent material 122 under the guidance of the guide tube 13 and is absorbed by the absorbent material 122.

[0037] In a further optimized design, the guide pipe 13 includes a front pipe groove 131, which is fixed to the inner bottom wall of the collecting groove 1111. The end of the front pipe groove 131 is connected to a rear pipe groove 133 through a round pipe 132. The rear pipe groove 133 extends into the absorbent material 122, and the round pipe 132 can block the connection between the front pipe groove 131 and the rear pipe groove 133 under the action of external force.

[0038] In this embodiment, the front tube groove 131, the round tube 132, and the rear tube groove 133 are an integral structure made of soft material. Under the action of external force, especially when riding a bicycle, the round tube 132 can be flattened, thereby blocking the connection between the front tube groove 131 and the rear tube groove 133.

[0039] To further optimize the design, multiple sets of through holes 1330 are provided at intervals along the length of the bottom of the rear tube groove 133; the diameter of the multiple sets of through holes 1330 increases sequentially from front to back.

[0040] In this embodiment, when menstrual blood flows into the rear tube groove 133 through the round tube 132, it will flow out through the through hole 1330 during the flow process. Since the diameter of the through hole 1330 gradually increases from front to back, the rear side of the absorbent material 122 absorbs more menstrual blood than the front side. In this way, the menstrual blood gradually permeates and diffuses from the rear side to the front side, and the utilization rate of the absorbent material 122 is very high.

[0041] To further optimize the scheme, a through channel 1 21 is provided in the middle of the middle layer 2, which corresponds to the collection channel 1111. Multiple through channels 22 are provided on both sides of the through channel 1 21, and the multiple through channels 22 are respectively arranged in a one-to-one correspondence with multiple diversion channels 1112.

[0042] In this embodiment, the material of the middle layer 2 can be a hard, tough, elastic, non-toxic, and odorless polyester film, or it can be a medical-grade PE sheet. The extended lines of the center lines of the two corresponding channels 22 on both sides of channel 1 21 intersect, and their arrangement is the same as that of the drainage channel 1112. Both channel 1 21 and channel 22 are V-shaped channels with a larger upper opening and a smaller lower opening, that is, the channel is narrow on the side near the bottom layer 1 and wide on the side near the top layer 3. The width of the narrow channel is 0.5-1mm and the width of the wide channel is 2mm. By setting both channel 1 21 and channel 22 as V-shaped channels, menstrual blood can be bridged and backflow can be prevented.

[0043] To further optimize the scheme, a third through groove 31 is provided in the middle of the surface layer 3, corresponding to the first through groove 21. Multiple fourth through grooves 32 are provided on both sides of the third through groove 31, and the multiple fourth through grooves 32 are respectively arranged in a one-to-one correspondence with multiple second through grooves 22.

[0044] In this embodiment, the material of the surface layer 3 can be set as natural medical grade latex or food grade PE; the extension lines of the center lines of the two corresponding through grooves 32 on both sides of the through groove 31 intersect, and their setting method is the same as that of through groove 22; through groove 31 and through groove 42 are set as straight grooves with the same top and bottom, so that menstrual blood can fall directly to the middle layer 2 through the straight grooves.

[0045] The three-layer sanitary napkin structure, consisting of a top layer 3 with channels 31 and 42, a middle layer 2 with channels 111 and 22, and a bottom layer 1 with drainage section 111 and absorbent section 12, features good breathability, overcoming the shortcomings of traditional sanitary napkins being thick and stuffy. Furthermore, when menstrual blood contains small blood clots, these clots can flow into the bottom layer 1 through channels 31, 42, 11, and 22 for absorption. A layer of high-grade yarn or latex spray, or even aloe vera perfume, is applied to the top layer 3 with channels 31 and 42, preventing blood from staining the surface. For women, this effectively solves the technical problem of blood clots remaining after using traditional sanitary napkins.

[0046] The design is further optimized by fixing side wings 33 to both sides of the top layer 3. Adhesive is fixed to the lower surface of the side wings 33 and the lower surface of the bottom layer 1, and release paper 4 is provided on the bottom surface of the adhesive. In use, the release paper 4 is torn off, the lower surface of the bottom layer 1 is adhered to the inner bottom surface of the underwear, and the side wings 33 are wrapped and adhered to the inner and outer surfaces of the underwear. This can firmly and reliably adhere and fix the sanitary napkin.

[0047] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A novel sanitary napkin featuring direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer, characterized in that: include: The bottom layer (1) has a top surface layer (3) connected to the top surface layer (2) via a middle layer (2); The bottom layer (1) includes a substrate (11) and an absorbent part (12). The substrate (11) is connected to the middle layer (2). The absorbent part (12) is disposed on one side of the substrate (11). A drainage part (111) is disposed on the substrate (11). The convergence point of the drainage part (111) is connected to the absorbent part (12) through a guide pipe (13). The middle part of the guide pipe (13) can block the connection between the drainage part (111) and the absorbent part (12) under the action of external force.

2. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 1, characterized in that: The drainage section (111) includes a collection groove (1111) disposed in the middle of the base (11), and the front side of the guide pipe (13) is connected to the collection groove (1111); a plurality of drainage grooves (1112) are respectively arranged at intervals on both sides of the collection groove (1111), and the drainage grooves (1112) are connected to the collection groove (1111).

3. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 2, characterized in that: The number of diversion channels (1112) on both sides of the collection channel (1111) is the same and they correspond one-to-one; the two corresponding diversion channels (1112) are arranged in a V-shape.

4. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 2, characterized in that: The absorption section (12) includes a second substrate (121) connected to the side of the first substrate (11). An absorbent material (122) is disposed inside the second substrate (121), and the rear side of the guide tube (13) is connected to the absorbent material (122).

5. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 4, characterized in that: The guide pipe (13) includes a front tube groove (131), which is disposed on the inner bottom wall of the collecting groove (1111). The end of the front tube groove (131) is connected to a rear tube groove (133) through a round tube (132). The rear tube groove (133) extends into the absorbent material (122), and the round tube (132) can block the connection between the front tube groove (131) and the rear tube groove (133) under the action of external force.

6. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbent in the bottom layer according to claim 5, characterized in that: The bottom of the rear tube groove (133) is provided with multiple sets of through holes (1330) spaced apart along the length direction.

7. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbent in the bottom layer according to claim 6, characterized in that: The diameter of the multiple sets of through holes (1330) increases sequentially from front to back.

8. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 3, characterized in that: The middle layer (2) is provided with a through groove 1 (21) corresponding to the collection groove (1111) in the middle. Multiple through grooves 2 (22) are provided on both sides of the through groove 1 (21). The multiple through grooves 2 (22) are respectively arranged in a one-to-one correspondence with the multiple diversion grooves (1112).

9. The novel sanitary napkin with direct leakage in the top layer, bridging in the middle layer, and absorbency in the bottom layer according to claim 8, characterized in that: The surface layer (3) has a three-channel (31) arranged in the middle, corresponding to the first channel (21). Multiple four-channel (32) are arranged on both sides of the three-channel (31), and the multiple four-channel (32) are arranged in a one-to-one correspondence with the multiple two-channel (22).

10. The novel sanitary napkin according to claim 8, characterized in that: Both the first through groove (21) and the second through groove (22) are configured as V-shaped grooves with a large upper opening and a small lower opening.

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