Liquid sanitary towel

Abstract

The utility model relates to the field of hygienic products, and provides a liquid sanitary towel, which solves the problem that the liquid sanitary towel in the prior art is easy to generate side leakage and reverse osmosis, and comprises a sanitary towel body, the sanitary napkin body is formed by sequentially stacking a surface layer, an absorber and a liquid-tight bottom layer from top to bottom, a main flow guide groove penetrating through the absorber from the surface of the absorber is formed in the absorber and distributed in the middle of the absorber, and the sanitary napkin further comprises a plurality of auxiliary flow guide grooves connected with the main flow guide groove in a penetrating mode. One end of each secondary flow guide groove is connected with the main flow guide groove in a penetrating mode, the other end of each secondary flow guide groove extends towards the two transverse sides of the absorber, a lengthened core body is further arranged between the absorber and the liquid-tight bottom layer, and the transverse size and the longitudinal size of the lengthened core body are both larger than the transverse size and the longitudinal size of the absorber. First permeation holes are evenly formed in the absorber, and second permeation holes are formed in the lengthened core body.

Description

Technical Field

[0001] The utility model relates to the field of sanitary products, and particularly relates to a liquid sanitary napkin. Background Art

[0002] The reason why the "liquid sanitary napkin" is called so is that the raw material of its absorption core comes from liquid materials. The product has the characteristics of being thin, breathable, with zero touch, dry, and fast-absorbing compared with traditional sanitary napkins. Although it is called a liquid sanitary napkin, it actually does not contain liquid and is not made of cotton. Instead, it is made of a microporous absorption material using a new technology. The characteristics of this absorption core are that the material is full of holes, thin, and breathable, and the material can absorb fluids independently, avoiding the risk of SAP particle precipitation in traditional sanitary napkin products.

[0003] However, the existing liquid sanitary napkins generally have problems of easy side leakage and back leakage. Chinese Patent No. 202320102312.8 discloses a liquid sanitary napkin, which includes a skin-friendly layer, an absorption layer, and a waterproof layer connected in sequence; the skin-friendly layer includes a hydrophilic layer and a hydrophobic layer, the hydrophilic layer is arranged at the bottom end of the hydrophobic layer and is laminated and thermally bonded together; the hydrophilic layer is composed of hydrophilic hot-melt short fibers; the hydrophobic layer is composed of hydrophobic hot-melt short fibers; an oval liquid storage layer is arranged at the bottom end of the hydrophilic layer, a first liquid blocking ring is arranged on the outer contour of the oval liquid storage layer, and a plurality of dense liquid permeable holes are arranged on the oval liquid storage layer; the absorption layer is arranged at the bottom end of the oval liquid storage layer; the absorption layer includes a plurality of cotton layers and diversion grooves, and the diversion grooves penetrate through the cotton layers; the waterproof layer is arranged at the bottom end of the absorption layer, and a groove for placing the cotton layer is arranged on the waterproof layer. This sanitary napkin realizes the effect of liquid absorption and storage through the arrangement of the oval liquid storage layer and the absorption layer, and realizes the diversion and transmission of liquid through the arrangement of the diversion grooves on the absorption layer, but it has no anti-side leakage function. In addition, the liquid in the absorption layer easily back-leaks to the surface skin-friendly layer through the oval liquid storage layer. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a liquid sanitary napkin to solve the problems of easy side leakage and back leakage of the liquid sanitary napkin in the prior art.

[0005] To achieve the above object, the present utility model is realized through the following technical solutions: A liquid sanitary napkin, comprising a sanitary napkin body, the sanitary napkin body having a longitudinal direction along the length direction and a transverse direction perpendicular thereto, winglets are provided on both transverse sides of the sanitary napkin body, the sanitary napkin body is formed by laminating a surface layer, an absorbent body and an impermeable bottom layer from top to bottom in sequence, a main flow guiding groove penetrating through the absorbent body from the surface of the absorbent body is provided on the absorbent body, and the main flow guiding groove is distributed in the middle of the absorbent body, and further includes a plurality of secondary flow guiding grooves communicated with the main flow guiding groove, one end of each secondary flow guiding groove is penetrated and connected with the main flow guiding groove, and the other end extends towards both transverse sides of the absorbent body, a lengthened core body is further provided between the absorbent body and the impermeable bottom layer, the transverse dimension and the longitudinal dimension of the lengthened core body are both larger than the transverse dimension and the longitudinal dimension of the absorbent body, first penetration holes are uniformly formed on the absorbent body, second penetration holes are formed on the lengthened core body, the projected areas of the first penetration holes and the second penetration holes in the longitudinal direction have an overlap, and the aperture of the first penetration hole is larger than the aperture of the second penetration hole.

[0006] Further: Liquid collecting grooves communicated with the secondary flow guiding grooves are provided on both transverse sides of the lengthened core body.

[0007] Further: A high molecular water-absorbing resin strip is provided at the end of the liquid collecting groove.

[0008] Further: The transverse dimension of the high molecular water-absorbing resin strip is 2 - 3 cm, and the longitudinal dimension is 1 - 3 cm.

[0009] Further: A groove is formed at the front part of the absorbent body, and a cool feeling material layer is filled in the groove.

[0010] Further: The groove penetrates from the surface of the absorbent body to the bottom surface of the lengthened core body.

[0011] Further: The groove is composed of a left groove and a right groove, and the left groove and the right groove are symmetrically arranged along the longitudinal central axis.

[0012] Further: Bacteriostatic core bodies are filled in both the left groove and the right groove.

[0013] Further: The thickness of the bacteriostatic core body is 1 / 2 - 2 / 3 of the thickness of the absorbent body.

[0014] Further: The thickness of the high molecular water-absorbing resin strip is 1.5 - 2 times the thickness of the absorbent body.

[0015] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are:

[0016] 1. The liquid sanitary napkin of the present utility model is provided with a main diversion groove on the absorbent body and a secondary diversion groove on the extended core body, and the main diversion groove is connected to the secondary diversion groove in a through manner, so that the liquid flows through each secondary diversion groove through the main diversion groove for transmission and dispersion, accelerating the dispersion and transmission of the liquid, and then being transmitted through the liquid collecting groove. A high-molecular water-absorbing resin strip is arranged at the end of the liquid collecting groove, so that the excess liquid after the liquid diffused and transmitted through the liquid collecting groove is absorbed by the absorbent body and the extended core body is finally absorbed by the high-molecular water-absorbing resin strip, preventing leakage.

[0017] 2. First penetration holes are uniformly formed in the absorbent body, and second penetration holes are formed in the extended core body. The projected areas of the first penetration holes and the second penetration holes in the longitudinal direction overlap. The aperture of the first penetration hole is larger than that of the second penetration hole. The first penetration hole is above and the second penetration hole is below. The larger aperture of the first penetration hole facilitates the downward infiltration of the liquid, and the smaller aperture of the second penetration hole makes it difficult for the liquid to reverse osmosis.

[0018] 3. In addition, a groove is formed in the front part of the absorbent body, and a cool-sensing material layer is filled in the groove, so that the user does not feel stuffy. Further, the groove is further divided into a left groove and a right groove, and a Tianhong antibacterial core body is arranged at the groove, so that the sanitary napkin has an antibacterial effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the absorbent body and the extended core body in the first embodiment of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the combination of the absorbent body and the extended core body in the second embodiment of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the combination of the absorbent body and the extended core body in the third embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will specifically describe the embodiments of the present utility model in detail, so as to fully understand how the present utility model uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0024] Embodiment 1

[0025] Refer to Figure 1 、 Figure 2, a liquid sanitary napkin, comprising a sanitary napkin body. The sanitary napkin body has a longitudinal direction along the length and a transverse direction perpendicular thereto. Wings 1 are provided on both transverse sides of the sanitary napkin body. The sanitary napkin body is formed by laminating a surface layer 2, an absorber 3, and a liquid-impermeable bottom layer 4 from top to bottom in sequence. A main flow channel 31 penetrating through the surface of the absorber 3 is provided on the absorber 3, and the main flow channel 31 is distributed in the middle of the absorber 3. It also includes a plurality of secondary flow channels 5 that are connected to the main flow channel 31 in a through manner. One end of each secondary flow channel 5 is connected to the main flow channel 31 in a through manner, and the other end extends towards both transverse sides of the absorber 3. An extended core 6 is further provided between the absorber 3 and the liquid-impermeable bottom layer 4. Liquid collection grooves 62 that are connected to the secondary flow channels 5 in a through manner are provided on both transverse sides of the extended core 6. A high molecular water-absorbing resin strip 7 is provided at the end of the liquid collection groove 62. The thickness of the high molecular water-absorbing resin strip 7 is 1.5 times the thickness of the absorber 3, the transverse dimension is 7 cm, and the longitudinal dimension is 1 cm.

[0026] The transverse dimension and the longitudinal dimension of the extended core 6 are both larger than those of the absorber 3. First penetration holes 32 are uniformly formed on the absorber 3, and second penetration holes 61 are formed on the extended core 6. The projected areas of the first penetration holes 32 and the second penetration holes 61 in the longitudinal direction have an overlap, and the aperture of the first penetration holes 32 is larger than that of the second penetration holes 61.

[0027] Embodiment 2

[0028] Referring to Embodiment 1 and Figure 3 , a liquid sanitary napkin, in which a groove 8 is formed at the front part of the absorber, and a cool feeling material layer 9 is filled in the groove 8. The groove penetrates from the surface of the absorber to the bottom surface of the extended core. Other technical solutions are the same as those in Embodiment 1. The cool feeling material layer uses materials well-known in the prior art. For example, it is achieved by adding cool feeling fibers or cool feeling masterbatches.

[0029] Embodiment 3

[0030] Referring to Embodiment 1 and Figure 4 , a liquid sanitary napkin, in which a groove is formed at the front part of the absorber. The groove is composed of a left groove 11 and a right groove 10. The left groove 11 and the right groove 10 are symmetrically arranged along the longitudinal central axis. Antibacterial cores are filled in both the left groove 11 and the right groove 10. The thickness of the antibacterial core is 1 / 2 of the thickness of the absorber. Other technical solutions are the same as those in Embodiment 1. The antibacterial core uses materials well-known in the prior art and will not be elaborated here.

[0031] Although the present utility model has been specifically shown and described in connection with preferred embodiments, those skilled in the art should understand that various changes may be made to the present utility model in form and detail without departing from the spirit and scope of the present utility model as defined by the appended claims, and all such changes are within the scope of protection of the present utility model.

Claims

1. A liquid sanitary napkin, comprising a sanitary napkin body, wherein the sanitary napkin body has a longitudinal direction along the length direction and a transverse direction perpendicular thereto, and wings are provided on both transverse sides of the sanitary napkin body, characterized in that: The sanitary napkin body is formed by a surface layer, an absorbent body and a liquid-impermeable bottom layer stacked in sequence from top to bottom. The absorbent body is provided with a main flow groove that penetrates the absorbent body from the surface of the absorbent body, and the main flow groove is distributed in the middle of the absorbent body. It also includes a plurality of secondary flow grooves that are through-connected with the main flow groove, one end of each of the secondary flow grooves is through-connected with the main flow groove, and the other end extends to the lateral sides of the absorbent body. An extended core is also provided between the absorbent body and the liquid-impermeable bottom layer, and the lateral and longitudinal dimensions of the extended core are both larger than those of the absorbent body. First penetration holes are evenly opened on the absorbent body, and second penetration holes are opened on the extended core. The longitudinal projection areas of the first penetration holes and the second penetration holes overlap, and the aperture of the first penetration hole is larger than that of the second penetration hole.

2. A liquid sanitary napkin according to claim 1, characterized in that: The two lateral sides of the elongated core body are provided with liquid collecting grooves which are in continuous connection with the secondary guide grooves.

3. A liquid sanitary napkin according to claim 2, characterized in that: The end of the liquid collecting tank is provided with a high molecular water-absorbing resin strip.

4. A liquid sanitary napkin according to claim 3, characterized in that: The horizontal dimension of the polymer water-absorbing resin strip is 2-10 cm, and the vertical dimension is 1-3 cm.

5. A liquid sanitary napkin according to claim 1, characterized in that: A groove is provided at the front of the absorbent body, and a cool material layer is filled in the groove.

6. A liquid sanitary napkin according to claim 5, characterized in that: The grooves extend from the surface of the absorbent body to the bottom surface of the elongated core.

7. A liquid sanitary napkin according to claim 5, characterized in that: The groove consists of a left groove and a right groove, and the left groove and the right groove are symmetrically arranged along the longitudinal center axis.

8. A liquid sanitary napkin according to claim 7, characterized in that: The left groove and the right groove are both filled with antibacterial cores.

9. A liquid sanitary napkin according to claim 8, characterized in that: The thickness of the antibacterial core is 1 / 2-2 / 3 of the thickness of the absorbent.

10. A liquid sanitary napkin according to claim 3, characterized in that: The thickness of the polymer water-absorbing resin strip is 1.5-2 times the thickness of the absorbent body.

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