Microcapsule-containing sanitary towel and microcapsule release method thereof

Abstract

The invention discloses a sanitary napkin containing microcapsules. The sanitary napkin comprises an absorption core body; the bottom layer is adhered to one side of the absorption core body; the surface layer is adhered to the other side of the absorption core body, and the surface layer is adhered to the edge of the opposite surface of the bottom layer; the microcapsule strip is arranged in the absorption core body; the cavity is formed in the absorption core body, and the microcapsule strips are located in the cavity; the openings are formed in the bottom layer and the absorption core body, the openings are communicated with the cavity, the number of the openings is two, and the two openings are located on the two sides of the microcapsule strips respectively. A microcapsule strip is stored in the sanitary towel, but the microcapsule strip in the sanitary towel can be pulled out from the opening according to different experiences of users or different demands of the users on the day, and then the microcapsule strip is put into the sanitary towel from the opening in the other side, so that the whole microcapsule strip is pulled into the sanitary towel, and the sanitary towel is convenient to use. Therefore, the replacement operation of the microcapsules of the sanitary napkin is completed, and the microcapsules of different types can be adjusted according to needs of the sanitary napkin.

Description

Technical Field

[0001] The present invention relates to the technical field of sanitary napkins, in particular to a sanitary napkin containing microcapsules and a method for releasing the microcapsules. Background Art

[0002] Sanitary napkins are a type of sanitary product used by women during menstruation. The main materials are cotton, non-woven fabrics, pulp, or polymers and polymer composite paper formed by composites of the above materials.

[0003] Sanitary napkins come in a variety of styles. Microencapsulation technology, applied to sanitary napkins, holds great promise for future development. For example, during menstruation, women experience a significant disruption to their central nervous system due to factors such as decreased hormone levels. This, combined with physical discomfort and a weakened immune system, can easily lead to emotional tension, irritability, and other issues. Microencapsulation technology can be used to encapsulate soothing essential oils that can alleviate menstrual discomfort, resulting in a lasting soothing effect while using sanitary products.

[0004] Or, during women's menstrual period, the menstrual blood or other secretions accumulated in sanitary napkins are very likely to cause bacterial growth and reproduction, thus causing various menstrual problems for women, such as gynecological odor, skin itching, vaginal bacterial infection, etc. Antibacterial microcapsules can be added to sanitary napkins to make the surface layer of the sanitary napkin have antibacterial effects.

[0005] However, existing microcapsule technology primarily focuses on achieving a single function, such as antibacterial microcapsules, fragrance-retaining microcapsules, or deodorizing microcapsules. The processing typically integrates the microcapsule particles with the sanitary napkin, making it non-replaceable. However, consumers may be more inclined to products that can simultaneously meet multiple functions, namely, sanitary napkins containing microcapsules with cross-functionality. Summary of the Invention

[0006] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a sanitary napkin containing microcapsules and a method for releasing microcapsules thereof, which can adjust the type of internal microcapsules according to needs.

[0007] To achieve the above object, the present invention provides the following technical solution: a sanitary napkin containing microcapsules, comprising: absorbent core; A bottom layer bonded to one side of the absorbent core; A surface layer is bonded to the other side of the absorbent core, wherein the surface layer is bonded to the edge of the opposite side of the bottom layer; A microcapsule strip is disposed inside the absorbent core; A chamber is provided inside the absorbent core, and the microcapsule strip is located inside the chamber; The openings are arranged on the bottom layer and the absorbent core, and are communicated with the chamber. There are two openings, which are respectively located on both sides of the microcapsule strip.

[0008] Furthermore, the microcapsule strip includes a wrapping shell, which is filled with a plurality of microcapsule particles. The side of the wrapping shell includes a tear-off section and a protective section. The tear-off section and the protective section are connected by an ant line. A pull line is fixedly installed on one side of the tear-off section, and the pull line extends from one side of the tear-off section to the other side and extends out of the absorption core.

[0009] Furthermore, a plurality of liquid storage tanks are provided on a side of the absorbent core close to the surface layer, and the plurality of liquid storage tanks are distributed along the width direction of the absorbent core.

[0010] Furthermore, the absorbent core comprises an upper layer, a middle layer and a lower layer, the upper layer is a flow-guiding material, the middle layer is a barrier material, and the lower layer is a water-locking material.

[0011] Furthermore, the microcapsule strips are located on both sides of the liquid storage tank, and a cavity for accommodating the microcapsule strips is provided between the upper layer and the lower layer. Openings for communicating with the cavity are provided on the upper layer and the surface layer and on both sides of the microcapsule strips. Hook sleeves are formed on both sides of the microcapsule strips, and holes are provided on the hook sleeves.

[0012] Furthermore, it also includes wings arranged on both sides of the bottom layer, the side of the bottom layer away from the absorbent core is coated with viscose, a first patch covered with viscose is arranged on the bottom layer, one side of the wing is coated with viscose, and a second patch is arranged at the viscose.

[0013] Furthermore, absorbent paper is provided inside the microcapsule strip, and the microcapsule particles wrap the absorbent paper.

[0014] A method for releasing microcapsules from a sanitary napkin containing microcapsules: S1. Open the sanitary napkin and take the corresponding microcapsule strip according to your needs; S2. Insert the hook into the opening as needed to extract the microcapsule strips in the chamber; S3, inserting the hook strip from one side opening and extending it from the other side opening, hooking the selected microcapsule strip, and pulling the microcapsule strip into the cavity of the sanitary napkin; S4, manually pressing the protective section on the microcapsule strip, then pulling out the pull string on the tear-off section, which separates the tear-off section from the protective section, leaking the microcapsules inside the microcapsule strip; S5. Cover the opening, shake the sanitary napkin, tear off the first patch and the second patch, and stick the sanitary napkin on the underwear.

[0015] Compared with the prior art, the beneficial effect of the present invention is that a microcapsule strip is already stored inside the sanitary napkin, but according to the different experiences of the user or the different needs of the user on that day, the microcapsule strip in the sanitary napkin can be pulled out from the opening. The specific operation is to hook the microcapsule strip at the entrance with a configured hook strip (the hook strip is made of hard materials such as iron and plastic), and then pull the microcapsule strip out of the sanitary napkin. Then, the hook strip is inserted into the opening on one side and then extended from the opening on the other side to hook the microcapsule strip, thereby pulling the entire microcapsule strip into the sanitary napkin, thereby completing the replacement operation of the sanitary napkin for the microcapsule, and realizing the adjustment of different types of microcapsules according to one's own needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an expanded view of the overall structure of the present invention; Figure 3 It is a cross-sectional view of the overall structure of the present invention; Figure 4 is a cross-sectional view of the capsule strip structure of the present invention; Figure 5 Schematic diagram of the structure of the capsule strip of the present invention.

[0017] In the figure: 1. Absorbent core; 11. Upper layer; 12. Middle layer; 13. Lower layer; 14. Capsule strip; 141. Wrapping shell; 1411. Tear-off section; 1412. Protective section; 1413. Drawstring; 142. Microcapsule particles; 143. Absorbent paper; 144. Hook; 145. Hole; 15. Chamber; 16. Opening; 2. Surface layer; 3. Bottom layer; 4. Wings; 5. First patch; 6. Second patch; 7. Liquid reservoir. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1 and Figure 2 This embodiment provides a sanitary napkin containing microcapsules, including a sanitary napkin body, wings 4 are provided on both sides of the sanitary napkin body, the side of the sanitary napkin body facing away from the skin is coated with viscose, a first patch 5 covered with viscose is provided on the sanitary napkin body, one side of the wing 4 is coated with viscose, a second patch 6 is provided on the wing 4, and the first patch 5 and the second patch 6 are coated on the side close to the sanitary napkin body to reduce the stickiness between the first patch 5 and the viscose.

[0020] When in use, first peel off the first patch 5, stick the adhesive side of the sanitary napkin body to the middle of the underwear, then tear off the second patch 6, and fold the two wings 4 and stick them to the narrowest part of the crotch of the pants to fix the sanitary napkin body, put on the underwear, and you can complete the wearing of the sanitary napkin.

[0021] Sanitary napkins come in a variety of styles. Microencapsulation technology, applied to sanitary napkins, holds great promise for future development. For example, during menstruation, women experience a significant disruption to their central nervous system due to factors such as decreased hormone levels. This, combined with physical discomfort and a weakened immune system, can easily lead to emotional tension, irritability, and other issues. Microencapsulation technology can be used to encapsulate soothing essential oils that can alleviate menstrual discomfort, resulting in a lasting soothing effect while using sanitary products.

[0022] Alternatively, during a woman's menstrual period, menstrual blood or other secretions accumulated in the sanitary napkin can easily cause bacterial growth and reproduction, thereby causing various menstrual problems for women, such as gynecological odor, skin itching, vaginal bacterial infection, etc. Antibacterial microcapsules can be added to the sanitary napkin to make the surface layer 2 of the sanitary napkin have an antibacterial effect.

[0023] See also Figure 1 and Figure 2 To solve the above problems, the sanitary napkin body comprises an absorbent core 1 provided with microcapsules, a bottom layer 3 and a top layer 2 located on either side of the absorbent core. The bottom layer 3 and the top layer 2 have larger surface areas than the absorbent core 1. The bottom layer 3 and the top layer 2 are bonded at their edges to wrap around the absorbent core 1. The bottom layer 3 and the absorbent core 1 are bonded to each other on their opposing surfaces, and the top layer 2 and the absorbent core 1 are bonded to each other on their opposing surfaces. Wings 4 are fixedly connected to the bottom layer 3, and a first patch 5 is bonded to the bottom layer 3.

[0024] The top layer 2 is primarily an antibacterial layer. The antibacterial layer is formed by immersing the nonwoven fabric of the base top layer 2 in an antibacterial improvement solution. After the soaking is complete, the top layer 2 is removed and dried to form the antibacterial layer. The bottom layer 3 is primarily a waterproof bottom layer 3. The side of the bottom layer 3 away from the absorbent core 1 is coated with adhesive and bonded to the first patch 5.

[0025] The body fluids discharged by the human body will temporarily stay on the surface of the sanitary napkin for a period of time. If the surface of the sanitary napkin is relatively flat, the area where the body fluids touch the skin is larger, and the reaction between the antibacterial agent, microcapsule and body fluids takes a certain amount of time, so the probability of early skin itching and other inflammations is still high.

[0026] See also Figure 1 and Figure 2In order to reduce the contact time between body fluids and skin and the contact area between sanitary napkin and skin, and reduce the probability of inflammation such as itching, a plurality of liquid reservoirs 7 are provided on the side of the absorbent core 1 close to the surface layer 2, and the plurality of liquid reservoirs 7 are distributed along the width direction of the absorbent core 1.

[0027] The human body discharges liquid onto the sanitary napkin, and the liquid on the sanitary napkin is quickly absorbed by the surface layer 2 and the absorbent core 1. If the amount of liquid discharged is large, the liquid that is not absorbed in time will flow to the liquid reservoir 7. On the one hand, the liquid reservoir 7 can store excess liquid and reduce liquid exudation. On the other hand, the inner wall of the liquid reservoir 7 is difficult to contact with the skin, reducing the contact area between the sanitary napkin and the skin, and further reducing the probability of inflammation such as skin itching.

[0028] See also Figure 2 and Figure 3 The absorbent core 1 comprises an upper layer 11, a middle layer 12, and a lower layer 13. The upper layer is a flow-guiding material (flow-guiding nonwoven fabric), the middle layer is a barrier material (foamed sponge), and the lower layer 13 is a water-locking material (absorbent paper or polymer material). Multiple capsule strips 14 are positioned between the upper layer 11 and the middle layer 12. These strips 14 are distributed along the width of the absorbent core 1 and include a wrapping shell 141. This wrapping shell 141 is made of a degradable material and is filled with multiple microcapsule particles 142. The sides of this wrapping shell 141 include a tear-off section 1411 and a protective section 1412. These sections are connected by an ant line. A pull cord 1413 is fixedly mounted on one side of the tear-off section 1411. The pull cord 1413 extends from one side of the tear-off section 1411 to the other side and out of the absorbent core 1.

[0029] The absorbent core 1 is able to efficiently guide and lock liquids through the structural design of the upper layer 11, the middle layer 12 and the lower layer 13. The upper layer 11 uses a diversion material to help the liquid disperse quickly, the middle layer 12 uses a barrier material to effectively prevent the liquid from penetrating upwards, and the lower layer 13 uses a water-locking material to ensure that the liquid is firmly locked. The specially designed capsule strip 14 is located between the upper layer 11 and the middle layer 12. The tear-off section 1411 and the protective section 1412 on the capsule strip 14 are connected by an "ant line". When the user needs to use it, they can press the protective section 1412 with one hand and pull the pull line 1413 with the other hand to easily tear the tear-off section 1411 and the protective section 1412 apart, so that the microcapsules in the encapsulating shell 141 are released from the encapsulating shell 141 and quickly react with the infiltrating body fluids. This design not only improves the absorption effect and ease of use, but also has a degradable plastic package, which helps reduce environmental pollution. It is an environmentally friendly and efficient absorbent material. The microcapsules also provide additional absorption and moisture management functions by degrading the plastic encapsulation.

[0030] See also Figure 4 and Figure 5In the middle of the microcapsule strip 14, absorbent paper 143 is provided, and microcapsule particles 142 wrap around the absorbent paper 143. The absorbent paper 143 not only improves the water absorption of the sanitary napkin, but also expands when it absorbs water, which can push the microcapsules to contact the upper layer 11 as soon as possible, so that they can react with the liquid.

[0031] Existing microcapsule technology primarily focuses on achieving a single function, such as antibacterial microcapsules, fragrance-retaining microcapsules, or odor-removing microcapsules. The processing typically integrates the microcapsule particles 142 with the sanitary napkin, making them non-replaceable. However, consumers may be more inclined to products that simultaneously meet multiple functions, i.e., sanitary napkins containing microcapsules with cross-functionality.

[0032] See also Figure 2 and Figure 3 To address the above technical issues, microcapsule strips 14 are located on both sides of the liquid reservoir 7. A cavity 15 for accommodating the microcapsule strips 14 is provided between the upper layer 11 and the lower layer 13. Openings 16 for communicating with the cavity 15 are provided on the upper layer 11 and the surface layer 2 and on both sides of the microcapsule strips 14. Hooks 144 are formed on both sides of the microcapsule strips 14, and holes 145 are provided on the hooks 144.

[0033] In the initial state, a microcapsule strip 14 is already stored inside the sanitary napkin. However, according to the user's different experiences or different needs of the user on that day, the microcapsule strip 14 in the sanitary napkin can be pulled out from the opening 16. The specific operation is to configure a hook strip made of a hard material such as iron or plastic to hook the hole 145 on the hook sleeve 144 at the opening 16, and then pull the microcapsule strip 14 out of the sanitary napkin. Then, the hook strip is inserted into the opening 16 on one side, and then extended from the opening 16 on the other side to hook the hole 145 of the hook sleeve 144 on the microcapsule strip 14, thereby pulling the entire microcapsule strip 14 into the sanitary napkin, thereby completing the replacement operation of the sanitary napkin for the microcapsule.

[0034] A microcapsule release method: S1. Open the sanitary napkin first, and then take the corresponding microcapsule strip 14 according to your needs; S2. As needed, insert the hook strip into the opening 16 to extract the microcapsule strip 14 in the chamber 15; S3, insert the hook strip from one side opening 16, extend it from the other side opening 16, hook the selected microcapsule strip 14, and pull the microcapsule strip 14 into the chamber 15 in the sanitary napkin; S4. Manually press the protective section 1412 on the microcapsule strip 14, then pull out the pull string 1413 on the tear section 1411. The pull string 1413 drives the tear section 1411 to separate from the protective section 1412, leaking the microcapsules inside the microcapsule strip 14. S5, covering the opening 16, shaking the sanitary napkin, tearing off the first patch 5 and the second patch 6, and sticking the sanitary napkin on the underwear.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A sanitary napkin containing microcapsules, characterized in that: include: Absorbent core (1); A bottom layer (3) fixed to one side of the absorbent core (1); A surface layer (2) is bonded to the other side of the absorbent core (1), and the surface layer (2) is fixedly connected to the bottom layer (3) at the edges of the opposite surfaces; A chamber (15) arranged inside the absorbent core (1); A microcapsule strip (14), wherein the microcapsule strip (14) is located inside the chamber (15); An opening (16) is provided on the bottom layer (3) and the absorbent core (1), the opening (16) being in communication with the chamber (15), and there are two openings (16), which are located on both sides of the microcapsule strip (14) respectively.

2. The sanitary napkin containing microcapsules according to claim 1, characterized in that: The microcapsule strip (14) comprises a wrapping shell (141), wherein the wrapping shell (141) is filled with a plurality of microcapsule particles (142), wherein the side of the wrapping shell (141) comprises a tear-off section (1411) and a protective section (1412), wherein an ant line is cut between the tear-off section (1411) and the protective section (1412), and a pull line (1413) is fixedly mounted on one side of the tear-off section (1411), wherein the pull line (1413) extends from one side of the tear-off section (1411) to the other side and extends out of the absorbent core (1).

3. The sanitary napkin containing microcapsules according to claim 1, characterized in that: A plurality of liquid storage grooves (7) are arranged on one side of the absorbent core (1) close to the surface layer (2), and the plurality of liquid storage grooves (7) are distributed along the width direction of the absorbent core (1).

4. The sanitary napkin containing microcapsules according to claim 3, characterized in that: The absorbent core (1) comprises an upper layer (11), a middle layer (12) and a lower layer (13); the upper layer (11) is a flow-guiding layer, the middle layer (12) is a barrier layer, and the lower layer (13) is a water-locking layer.

5. The sanitary napkin containing microcapsules according to claim 4, characterized in that: The microcapsule strips (14) are located on both sides of the liquid storage tank (7); a chamber (15) for accommodating the microcapsule strips (14) is provided between the upper layer (11) and the lower layer (13); openings (16) for communicating with the chamber (15) are provided on the upper layer (11) and the surface layer (2) and on both sides of the microcapsule strips (14); hook sleeves (144) are provided on both sides of the microcapsule strips (14); and holes (145) are provided on the hook sleeves (144).

6. The sanitary napkin containing microcapsules according to claim 2, characterized in that: It also comprises wings (4) arranged on both sides of the bottom layer (3), the bottom layer (3) being provided with adhesive on a side away from the absorbent core (1), the bottom layer (3) being provided with a first patch (5) covered with adhesive, one side of the wings (4) being coated with adhesive, and a second patch (6) being provided at the adhesive.

7. The sanitary napkin containing microcapsules according to claim 2, characterized in that: The microcapsule strip (14) is provided with absorbent paper (143) inside, and the microcapsule particles (142) are distributed on both sides of the absorbent paper (143).

8. A method for releasing microcapsules from a sanitary napkin containing microcapsules, wherein the microcapsules are released from the sanitary napkin containing microcapsules, characterized in that: S1. First, open the sanitary napkin and take the corresponding microcapsule strip (14) according to your needs; S2. As needed, insert the hook strip into the opening (16) to extract the microcapsule strip (14) in the chamber (15); S3, inserting the hook strip from one side opening (16), extending it from the other side opening (16), hooking the selected microcapsule strip (14), and pulling the microcapsule strip (14) into the chamber (15) in the sanitary napkin; S4, manually pressing the protective section (1412) on the microcapsule strip (14), and then pulling out the pull line (1413) on the tear-off section (1411), so that the pull line (1413) drives the tear-off section (1411) to separate from the protective section (1412), thereby leaking out the microcapsules inside the microcapsule strip (14); S5, covering the opening (16), shaking the sanitary napkin, tearing off the first patch (5) and the second patch (6), and sticking the sanitary napkin to the underwear.

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