A sanitary tampon with a flash lock surge core

Abstract

The utility model relates to female sanitary product technical field discloses a sanitary tampon of instantaneous suction and lock of cotton core, including cotton core, the wrapping layer of wrapping in cotton core outside, the pull line of connecting in cotton core one end and setting in the insertion head of cotton core other end, the cotton core has three -dimensional intercommunication network structure, the cotton core includes instantaneous suction layer, flow guide layer, liquid storage lock layer and protection layer gradually from inside to outside, the porosity of instantaneous suction layer, flow guide layer, liquid storage lock layer gradually reduces. The utility model discloses through setting the cotton core of multilayer structure, and the porosity of each layer gradually reduces from inside to outside, instantaneous suction layer can rapidly absorb menstrual blood, flow guide layer guides menstrual blood to the penetration of instantaneous suction layer and prevents reverse penetration, liquid storage lock layer stores a large amount of menstrual blood and locks and prevents side leakage, and protection layer prevents the exosmosis of menstrual blood from the outside of cotton core, and the overall improvement of sanitary tampon's absorption speed, absorption capacity and side leakage prevention performance.

Description

Technical Field

[0001] This utility model relates to the field of feminine hygiene products technology, specifically to a tampon with an instant-absorption and locking cotton core. Background Technology

[0002] Tampons are a commonly used hygiene product for women during their menstrual period to absorb menstrual blood and keep the vulva clean. They are inserted into the vagina to absorb menstrual blood. For users, the absorption speed, absorbency, and leak-proof performance of tampons are important factors affecting the user experience.

[0003] Traditional tampons, due to their relatively dense internal structure, require a certain amount of time for menstrual blood to penetrate the tampon, resulting in a slower absorption rate. This is especially true during heavy menstrual flows, which can lead to incomplete absorption and leakage from the vagina, staining underwear and causing inconvenience. Furthermore, after absorbing menstrual blood, the tampon may shift or create gaps between itself and the vaginal wall with the user's movements, allowing menstrual blood to leak out and affecting its leak-proof effect. Additionally, to accommodate greater absorption, some traditional tampons have increased diameter or length, which may cause discomfort or even pain during insertion and removal, reducing user acceptance.

[0004] Therefore, how to design a tampon that can quickly absorb menstrual blood, increase absorbency, improve leakage prevention, and at the same time ensure user comfort is an urgent problem to be solved. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the purpose of this utility model is to provide a sanitary tampon with instant absorption and locking cotton core.

[0006] The present invention relates to a tampon with an instant-absorption, lock-in cotton core, comprising:

[0007] The cotton core, the wrapping layer surrounding the cotton core, the pull cord connected to one end of the cotton core, and the insertion head located at the other end of the cotton core, the cotton core having a three-dimensional interconnected network structure, the cotton core including, from the inside out, an instant absorption layer, a flow guiding layer, a liquid storage and locking layer, and a protective layer; the porosity of the instant absorption layer, the flow guiding layer, and the liquid storage and locking layer gradually decreases, the protective layer is used to prevent menstrual blood from seeping out from the outside of the cotton core, while allowing menstrual blood to enter the inside of the cotton core and be absorbed.

[0008] Preferably, the protective layer is made of non-woven fabric material with a fine mesh structure, comprising a hydrophilic outer layer and a hydrophobic inner layer from the outside to the inside.

[0009] Preferably, the absorbent layer is made of cotton fiber material, and surface-active material is uniformly attached to its interior.

[0010] Preferably, the flow guiding layer is made of cotton fiber material, and its surface is provided with a spiral flow guiding groove structure.

[0011] Preferably, the liquid storage locking layer is made of cotton fiber material, and its interior is coated with a superabsorbent polymer material.

[0012] Preferably, the cotton core has a tail wing made of elastic material at its tail end, which can cover the vulva outside the vaginal opening when unfolded.

[0013] Preferably, the wrapping layer comprises an inner layer of hydrophilic nonwoven fabric and an outer layer of breathable film.

[0014] Preferably, it further includes an insertion head disposed at the end of the cotton core away from the pull cord, the insertion head being a conical structure with a smooth surface and a rounded tip.

[0015] Preferably, the surface of the insertion head is coated with a lubricating layer.

[0016] Preferably, a pull ring is provided at the end of the pull wire.

[0017] The tampon with instant absorption and locking cotton core described in this utility model has the advantage of being able to quickly absorb and lock menstrual blood by setting a multi-layered cotton core with the porosity of each layer gradually decreasing from the inside to the outside. The instant absorption layer can quickly absorb menstrual blood, the flow guiding layer guides menstrual blood to the instant absorption layer and prevents reverse permeation, the liquid storage locking layer stores a large amount of menstrual blood and locks it to prevent side leakage, and the protective layer prevents menstrual blood from seeping out from the outside of the cotton core. Overall, it improves the absorption speed, absorption capacity and side leakage prevention performance of the tampon. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the sanitary tampon with the instant-absorption and locking cotton core described in this utility model;

[0019] Figure 2 This is a cross-sectional view of the cotton core described in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Cotton core, 11. Instant absorption layer, 12. Diversion layer, 13. Liquid storage and locking layer, 14. Protective layer, 141. Hydrophilic outer layer, 142. Hydrophobic inner layer;

[0022] 2. Encapsulation layer;

[0023] 3 pull cords, 31 pull rings;

[0024] 4. Insert the head;

[0025] 5. Tail fins. Detailed Implementation

[0026] like Figures 1-2 As shown, the tampon with instant absorption and locking core disclosed in this embodiment includes a core 1, a wrapping layer 2 wrapped around the core 1, a pull string 3 connected to one end of the core 1, and an insertion head 4 disposed at the other end of the core 1. The core 1 has a three-dimensional interconnected network structure. From the inside to the outside, the core 1 includes an instant absorption layer 11, a flow guiding layer 12, a liquid storage and locking layer 13, and a protective layer 14. The porosity of the instant absorption layer 11, the flow guiding layer 12, and the liquid storage and locking layer 13 gradually decreases. The protective layer 14 is used to prevent menstrual blood from seeping out from the outside of the core 1, while allowing menstrual blood to enter the core 1 and be absorbed.

[0027] The three-dimensional network interconnection structure in this embodiment refers to a three-dimensional network formed by interweaving fibrous materials (such as cotton fibers and SAP fibers) in three-dimensional space. Its characteristic is that the fibers intersect to form continuous pores, allowing liquids to permeate freely in any direction.

[0028] The instant absorption layer 11 is made of high-porosity cotton fiber material with a pore diameter ranging from 0.5 to 1 mm and a unit area weight of 50 to 80 grams per square meter. It can quickly absorb and disperse menstrual blood, preventing it from accumulating on the surface of the cotton core. The cotton fiber material of the instant absorption layer 11 is uniformly coated with surfactants, which can be treated with surfactants to enhance its hydrophilicity, allowing menstrual blood to be absorbed more quickly.

[0029] The flow-guiding layer 12 is made of cotton fiber material with medium porosity, with a pore diameter ranging from 0.3 to 0.5 mm and a unit area weight of 40 to 60 grams per square meter. It can guide menstrual blood to permeate into the instant absorption layer 11 and prevent menstrual blood from permeating back into the liquid storage and locking layer 13. The surface of the cotton fiber material of the flow-guiding layer 12 is provided with a spiral flow-guiding groove structure, which can increase the friction between fibers, improve the structural stability of the flow-guiding layer, and facilitate the directional flow of menstrual blood.

[0030] The liquid-locking layer 13 is made of low-porosity cotton fiber material with a pore diameter ranging from 0.1 to 0.3 mm and a unit area weight of 60 to 100 grams per square meter. It can store a large amount of menstrual blood and, through its dense structure, locks in the menstrual blood to prevent side leakage. The cotton fiber material of the liquid-locking layer 13 is internally coated with a superabsorbent polymer (SAP) material, added at 5-10% of the cotton fiber weight. This SAP can absorb hundreds of times its own weight in menstrual blood and has excellent water retention, further enhancing the liquid-locking capacity of the liquid-locking layer.

[0031] The protective layer 14 is made of a hydrophilic nonwoven fabric with a fine mesh structure that prevents menstrual blood from seeping out from the outside of the tampon core while allowing it to enter and be absorbed. From the outside in, the protective layer 14 comprises a hydrophilic outer layer 141 and a hydrophobic inner layer 142. Specifically, the hydrophilic outer layer 141 is a hydrophilic region with a contact angle of 35°±2° formed by PEG-600 hydrophilic treatment, while the hydrophobic inner layer 142 is a hydrophobic stripe with a contact angle of 110°±5° formed by an inner fluorocarbon compound hydrophobic region. The 35° contact angle of the hydrophilic region allows liquid to penetrate within 0.5 seconds, and the hydrophobic stripe forms a directional flow path, confining the liquid to the central area of ​​the tampon (reducing side leakage by 65%).

[0032] In another embodiment, the surface of the hydrophilic nonwoven material of the protective layer 14 is coated with a waterproof and breathable membrane made of polytetrafluoroethylene with a thickness of 0.05-0.1 mm. This membrane can effectively prevent menstrual blood from seeping out from the outside of the cotton core while maintaining good breathability and preventing the user from feeling stuffy.

[0033] The pull cord 3 is made of soft cotton material. One end is firmly connected to the cotton core 1, and the other end has a pull ring 31 for easy gripping. The pull cord 3 is 150-200 mm long and 2-3 mm in diameter, making it easy for users to pull out the tampon. The connection between the pull cord 3 and the cotton core 1 is reinforced with medical-grade adhesive and reinforced with reinforcing wire to ensure that the pull cord 3 will not detach from the cotton core 1 during use, thus improving safety.

[0034] The tampon in this embodiment also includes an insertion head 4 disposed at the end of the tampon core 1 away from the pull string 3. The insertion head 4 is a smooth, tapered structure with a rounded tip. In this embodiment, the insertion head 4 has a rounded tapered structure with a smooth surface, a length of 10-15 mm, and a diameter that gradually decreases from the base to the tip, facilitating smooth insertion of the tampon 1 into the vagina and reducing discomfort during insertion. The surface of the insertion head 4 is coated with a lubricant, which is medical-grade silicone oil, with a coating thickness of 0.01-0.02 mm, which can reduce friction between the tampon head and the vaginal wall during insertion and reduce discomfort.

[0035] The tampon core 1 is 60-80 mm long and 10-15 mm in diameter, with a streamlined design that conforms to the physiological curvature of the vagina, ensuring a tight fit against the vaginal wall, minimizing displacement and gaps, and improving leak-proof performance. The end of the tampon core 1 has a tail wing 5 made of elastic material, with a width of 20-30 mm and a length of 10-15 mm when unfolded, covering the vulva outside the vaginal opening to further prevent menstrual blood leakage. Specifically, the tail wing 5 is attached to the end of the tampon core 1 with medical-grade adhesive. The tail wing 5 is made of elastic non-woven fabric, which has good flexibility and elasticity, adapting to different vulvar shapes and providing a comfortable fit. The edges of the tail wing 5 have a wavy design, increasing its contact area with the vulva and further improving leak-proof performance. At the connection point, the width of the tail wing 5 gradually increases, forming a smooth transition area to ensure that the user does not experience discomfort or pressure marks during wear.

[0036] Medical-grade adhesive has good biocompatibility and will not cause irritation or allergic reactions to the user's skin. During the bonding process, the adhesive is evenly applied to the connection area between the tail end of the cotton core 1 and the tail fin 5, ensuring a strong bond between them. To enhance the stability of the connection, a reinforcing membrane made of polyester fiber material with a thickness of 0.05-0.1 mm can be placed at the connection point to effectively prevent the tail fin 5 from detaching from the cotton core 1 during use.

[0037] In addition, the surface of the tail fin 5 is coated with a hydrophilic coating that can quickly absorb small amounts of menstrual blood or secretions from the vulva, keeping the vulva dry and clean. The hydrophilic coating is composed of polyvinyl alcohol and surfactants, and its coating thickness is 0.01-0.02 mm, which ensures good absorption performance without affecting the elasticity and breathability of the tail fin 5.

[0038] The wrapping layer 2 adopts a multi-layer composite structure, including an inner layer of hydrophilic non-woven fabric and an outer layer of breathable film. The inner layer of hydrophilic non-woven fabric can guide menstrual blood into the cotton core 1, while the outer layer of breathable film can prevent menstrual blood from seeping out from the outside of the cotton core 1 and maintain good breathability. The thickness of the wrapping layer 2 is 0.1-0.2 mm and the width is 5-8 mm, which can tightly wrap the cotton core without producing excess wrinkles or loosening.

[0039] When using the tampons of this invention, hold the insertion head 4 and slowly insert the tampon into the vagina. After insertion, the tail fin 5 covers the vulva outside the vaginal opening. The rounded conical structure of the insertion head 4 and the lubricant make the insertion process smooth and reduce discomfort. After entering the vagina, the streamlined design of the cotton core 1 allows it to fit tightly against the vaginal wall, reducing displacement and gaps. Menstrual blood enters the cotton core through the mesh of the protective layer 14, is first quickly absorbed and dispersed by the absorbent layer 11, and then permeates into the absorbent layer 11 under the action of the diversion layer 12, preventing back permeation to the liquid-locking layer 13. The liquid-locking layer 13 stores a large amount of menstrual blood and locks it in place through its dense structure and the water-retaining properties of the superabsorbent polymer, preventing side leakage. The outer breathable film of the wrapping layer 2 prevents menstrual blood from seeping out from the outside of the cotton core while maintaining breathability and avoiding a stuffy feeling. When it is necessary to remove the tampon, the user can easily pull it out by pulling the loop 31 of the pull cord 3. The reinforced structure of the pull cord 3 ensures that it will not detach from the tampon core during use, thus ensuring safety.

[0040] This invention utilizes a multi-layered tampon core 1, with each layer made of cotton fiber material with different pore sizes. This achieves rapid absorption and sealing of menstrual blood. The instant absorption layer 11 quickly absorbs menstrual blood, the guide layer 12 guides menstrual blood to the instant absorption layer and prevents reverse seepage, the liquid storage and locking layer 13 stores a large amount of menstrual blood and locks it in place to prevent side leakage, and the protective layer 14 prevents menstrual blood from seeping out from the outside of the tampon core 1. Overall, this design improves the absorption speed, absorption capacity, and side leakage prevention performance of the tampon. The tampon core 1 has a streamlined design that conforms to the physiological curvature of the vagina, ensuring that the tampon fits tightly against the vaginal wall, reducing displacement and gaps, further improving the leakage prevention effect, and enhancing user comfort. The rounded conical structure of the insertion head 4 and the use of lubricant allow the tampon to be smoothly inserted into the vagina, reducing discomfort during insertion; the tail fin 5 covers the vulva outside the vaginal opening, further preventing menstrual blood from leaking out of the vaginal opening. The soft cotton material and reinforced connection of the pull cord 3 allow users to easily pull out the tampon, ensuring safety during use. In summary, the tampon with an instant-absorption, lock-in cotton core provided by this invention has the advantages of rapid menstrual blood absorption, large capacity storage, good leak-proof performance, and high user comfort, meeting the different needs of women during menstruation and possessing good market application prospects.

[0041] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0042] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A tampon with an instant-absorption, lock-in cotton core, characterized in that, include: The cotton core (1), the wrapping layer (2) wrapped around the cotton core (1), the pull cord (3) connected to one end of the cotton core (1) and the insertion head (4) set at the other end of the cotton core (1) have a three-dimensional interconnected network structure. The cotton core (1) includes an instant absorption layer (11), a flow guiding layer (12), a liquid storage and locking layer (13) and a protective layer (14) from the inside to the outside. The porosity of the instant absorption layer (11), the flow guiding layer (12) and the liquid storage and locking layer (13) gradually decreases. The protective layer (14) is used to prevent menstrual blood from seeping out from the outside of the cotton core (1) while allowing menstrual blood to enter the inside of the cotton core (1) and be absorbed.

2. The tampon with an instant-absorption, lock-in cotton core according to claim 1, characterized in that, The protective layer (14) is made of non-woven fabric with a fine mesh structure, and includes a hydrophilic outer layer (141) and a hydrophobic inner layer (142) from the outside to the inside.

3. The tampon with an instant-absorption, lock-in cotton core according to claim 1, characterized in that, The instant absorption layer (11) is made of cotton fiber material, and surface active material is uniformly attached inside it.

4. The tampon with an instant-absorption, locking cotton core according to claim 3, characterized in that, The flow guiding layer (12) is made of cotton fiber material and has a spiral flow guiding groove structure on its surface.

5. The tampon with an instant-absorption, locking cotton core according to claim 4, characterized in that, The liquid storage locking layer (13) is made of cotton fiber material and has a superabsorbent polymer material attached inside.

6. The tampon with an instant-absorption, locking cotton core according to claim 1, characterized in that, The cotton core (1) has a tail wing (5) made of elastic material at its tail end, which can cover the vulva outside the vaginal opening when unfolded.

7. The tampon with an instant-absorption, locking cotton core according to claim 1, characterized in that, The wrapping layer (2) includes an inner layer of hydrophilic nonwoven fabric and an outer layer of breathable film.

8. The tampon with an instant-absorption, locking cotton core according to any one of claims 1-7, characterized in that, It also includes an insertion head (4) located at the end of the cotton core (1) away from the pull line (3), the insertion head (4) being a conical structure with a smooth surface and a rounded tip.

9. The tampon with an instant-absorption, locking cotton core according to claim 8, characterized in that, The surface of the insertion head (4) is coated with a lubricating layer.

10. The tampon with an instant-absorption, locking cotton core according to claim 1, characterized in that, The end of the pull wire (3) is provided with a pull ring (31).

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