KR102160854B1 - Bio-compatible absorbing member and sanitary napkin having the same - Google Patents

Abstract

Embodiments of the present invention relate to a biocompatible absorbent member containing a natural absorbent and a hygiene or medical article comprising the absorbent member. The absorbent member according to an embodiment of the present invention comprises as essential ingredients a natural algae powder containing a large amount of water-soluble fiber and a diatomaceous earth powder having a high moisture absorption rate while being readily available from nature, and optionally, coffee bean powder. Include. Since the absorbent member according to the embodiment of the present invention is free from chemically harmful ingredients due to natural ingredients and can provide a beneficial effect to the human body, it is used as an absorbent material for hygiene or medical supplies used for the purpose of absorption of biological secretions or blood. useful.

Description

Bio-compatible absorbing member and sanitary napkin having the same}

The present invention relates to hygiene products, and more particularly, to a biocompatible absorbent member and a sanitary napkin including the absorbent member.

Sanitary napkins are hygiene products that absorb blood discharged when women menstruate, and can be selected and used according to the amount of menstruation or the method of use during menstruation. The sanitary napkins may be classified into disposable sanitary napkins, cotton sanitary napkins, and internal sanitary napkins (tampons, menstrual cups) according to their shape or material. Generally, disposable sanitary napkins are widely used as sanitary napkins.

The disposable sanitary napkin has a triple structure of a label, an absorbent and a waterproof layer. The label is a portion that directly contacts the skin and may be made of polyethylene, artificial fibers or rayon. The absorber has a role of absorbing menstrual blood and may be composed of pulp or a super absorbent polymer (SAP). The superabsorbent polymer is a polymer material capable of absorbing moisture equivalent to several hundred times its own weight, and can absorb menstrual blood through the principle of osmotic pressure. Finally, the waterproof layer is mainly made of polyethylene, and serves to prevent the menstrual blood absorbed by the absorber from leaking out of the sanitary napkin.

The superabsorbent resin used as an absorber of a conventional sanitary napkin is a synthetic resin, which is manufactured in the form of particles using petrochemicals such as acrylic acid polymer or polyvinyl alcohol as a raw material, and thus absorbs several hundred to 1,000 times more moisture than its own weight. Has. Currently, most sanitary napkins or absorbent pads are petrochemical absorbents in the form of particles made of sodium polyacrylate. However, since the part of the body that the sanitary napkin comes in contact with is the most sensitive skin tissue among the body and is directly connected to other important body organs, depending on the constitution, skin diseases such as itchiness and soreness, menstrual pain or menstrual irregularities caused by the proliferation of bacteria may occur. In rare cases, the ingress of potential carcinogens into the body can lead to serious side effects such as infertility in women. In addition, the superabsorbent polymer absorbs not only menstrual blood, but also beneficial moisture in the human body in contact due to its strong absorption capacity, causing dry skin, thereby causing various female diseases.

For this reason, there is an attempt to use a chlorine-free natural pulp, which is relatively safe to the human body, such as cellulose obtained from 100% pulp instead of the synthetic resin as an absorber. However, since such natural pulp is manufactured by a process of interlocking and fixing wood pulp in several layers using starch, manufacturing cost is increased, and the use of natural pulp damages the forest, making it difficult to say that it is environmentally friendly.

In addition, since conventional sanitary napkins made of synthetic resins do not dissolve in water, they must be collected and treated separately, and thus, waste sanitary napkins cause environmental pollution.

Accordingly, the technical problem to be solved by the present invention is that the production cost is low and the absorption capacity of menstrual blood is improved, as well as the sterilization, deodorization, skin protection, or menstrual pain relief efficacy while suppressing and reducing various human side effects caused by the use of sanitary napkins. In addition to the same positive effects, it is to provide an absorbent member that is eco-friendly and does not have any concerns about environmental pollution without the problem of forest damage.

In addition, another technical problem to be achieved by the present invention is to provide a sanitary napkin including an absorbent member having the above-described advantages.

According to an aspect of the present invention for solving the above problems, the present invention can provide a biocompatible absorbent member containing a natural absorbent of diatomaceous earth powder and algae powder. In addition, the absorbent member may further include coffee bean powder.

According to an embodiment of the present invention, the algae powder included in the absorbent member includes water-soluble fiber, and at least one selected from the group consisting of seaweeds, seaweeds, and freshwater algae may be included. According to a specific embodiment, the seaweed may include one or more selected from the group consisting of seaweed, kelp, hatban, totgal green, thorny green, single green, laver, green agar, and boiled agar. The seaweeds may include at least one selected from the group consisting of turtle horses, jalppi and horsepis.

According to an embodiment of the present invention, as a component included in the absorbent member, the average particle diameter of the diatomaceous earth powder may be in the range of 10 μm to 80 μm, the average particle diameter of the algae powder may be in the range of 0.05 mm to 5 mm, and coffee The average particle diameter of the coffee bean powder may range from 0.1 mm to 5 mm.

According to an embodiment of the present invention, the composition ratio of each component included in the absorbent member is included in a range of 5 to 20 parts by weight of algae powder, and 1 to 10 parts by weight of coffee bean powder based on 1 part by weight of diatomaceous earth powder. I can.

According to another aspect of the present invention, the present invention can provide a sanitary napkin including an absorbent member having excellent biocompatibility. According to an embodiment of the present invention, the sanitary napkin absorbs menstrual blood, and includes an absorbent cotton and a biocompatible absorbent member as defined above; A label laminated on the absorber and in contact with the skin; And a waterproof layer preventing menstrual blood from leaking to the outside from the absorber.

According to an embodiment of the present invention, a gosam (苦蔘) extract may be applied to the surface of the label. According to an embodiment of the present invention, the absorbent cotton may include at least one selected from the group consisting of natural cotton and biodegradable resin. According to a specific embodiment, the absorbent cotton is polylactic acid (PLA), poly(butyrene succinate) (PBS), poly(butyrene succinate-adipate) copolymer (PBSA) and poly(butylene adipate- Terephthalate) copolymer (PBAT), polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB). It may be one or more biodegradable resins selected from the group consisting of.

According to an embodiment of the present invention, the waterproof layer may be a waterproof film having a liquid impermeability to allow air to pass through, but not to pass menstrual blood. According to a specific embodiment, the waterproof layer may be a biodegradable waterproof film in which micropores are formed to allow air to pass therethrough. The waterproof layer includes polylactic acid (PLA), poly(butyrene succinate) (PBS), poly(butyrene succinate-adipate) copolymer (PBSA) and poly(butylene adipate-terephthalate) copolymer (PBAT). ), polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB). It may be produced by processing at least one biodegradable resin selected from the group consisting of a film.

According to an embodiment of the present invention, the absorbent member includes a natural absorbent of diatomaceous earth powder and algae powder, and these absorbents absorb menstrual blood through a two-step absorption mechanism that complements each other in terms of absorption rate and moisture content for menstrual blood. Specifically, menstrual blood is rapidly absorbed initially by diatomaceous earth powder with a relatively fast absorption rate, and menstrual blood is finally absorbed by algae powder with a relatively low absorption rate but high moisture content, but the absorbed menstrual blood does not leak out of the label. Menstrual blood is absorbed through a two-stage absorption mechanism that ensures stable storage. As a result, the absorbed blood is not absorbed only in the local area of the absorbing member, but is evenly absorbed over the entire area, preventing the leakage of menstrual blood to the surface of the cover, so that the effect of increasing the wearing comfort can be expected so that you cannot feel uncomfortable even if you wear it for a long time. .

In addition, since the absorbent member further includes coffee bean powder as a blood coagulant, blood absorbed by the absorbent member can be prevented from easily leaking to the outer surface, thereby enhancing a fit.

In addition, by using natural absorbents such as diatomaceous earth powder, algae powder, and coffee bean powder as the absorbent member, various side effects caused by the use of sanitary napkins can be reduced, as well as skin protection, sterilization, and menstrual pain relief effects. I can.

In addition, since the diatomaceous earth powder contained in the absorbent member has a similar or better absorption rate of menstrual blood compared to a conventional synthetic compound, a superabsorbent resin, it is possible to improve the absorption capacity of the absorbent member.

In addition, the algal powder contained in the absorbent member has an excellent absorption rate compared to the conventional synthetic compound superabsorbent resin, so that the absorption amount of menstrual blood relative to the weight of the absorbent member can be improved. In addition, by using resource-rich algae instead of natural pulp, it is possible to reduce deforestation and reduce the production cost of products.

In addition, according to an embodiment of the present invention, the sanitary napkin including the absorbent member can expect excellent effects of the absorbent member as it is. In addition, pharmacological effects such as sterilization, deodorization, skin protection, and menstrual pain relief efficacy can be further improved by applying the Gosam extract to the surface of the sanitary napkin.

In addition, since the sanitary napkin is manufactured using an eco-friendly material that is biodegradable in nature, environmental pollution caused by the disposal of the waste sanitary napkin can be significantly reduced.

1 is a perspective view showing a sanitary napkin according to an embodiment of the present invention.
2 is a cross-sectional perspective view of a sanitary napkin according to an embodiment of the present invention.
3A, 3B and 3C are diagrams showing particle shapes of diatomaceous earth powder, seaweed powder, and coffee bean powder used as natural absorbents.
3D is a diagram showing the particle shape of a mixture of diatomaceous earth powder and seaweed powder used as a natural absorbent for sanitary napkins according to an embodiment of the present invention.
3E is a view showing the particle shape of a mixture of diatomaceous earth powder, seaweed powder, and coffee bean powder used as a natural absorbent for sanitary napkins according to an embodiment of the present invention.
4A and 4B are diagrams showing a pulp absorbent and a superabsorbent polymer used as an absorbent for sanitary napkins in the related art.
5 is a photograph comparing menstrual blood absorption states of a sanitary napkin according to an embodiment of the present invention and a conventional sanitary napkin product using a commercially available pulp absorbent.
6 is a photograph comparing states before and after absorption of water with respect to a sanitary napkin according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows. It is not limited to the examples. Rather, these examples are provided to make the present invention more faithful and complete, and to fully convey the spirit of the present invention to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, and the same reference numerals refer to the same elements in the drawings. As used herein, the term “and/or” includes any and all combinations of one or more of the corresponding listed items.

The terms used in this specification are used to describe specific embodiments, and are not intended to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly indicates another case. Further, as used herein, "comprise" and/or "comprising" specifies the presence of the mentioned shapes, numbers, steps, actions, members, elements and/or groups thereof. And does not exclude the presence or addition of one or more other shapes, numbers, actions, members, elements and/or groups.

In the present specification, terms such as first and second are used to describe various members, parts, regions, layers and/or parts, but these members, parts, regions, layers and/or parts are limited by these terms. It is obvious that it is not. These terms are only used to distinguish one member, component, region, layer or portion from another region, layer or portion. Accordingly, a first member, part, region, layer or part to be described below may refer to a second member, part, region, layer or part without departing from the teachings of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the drawings, for example, the size and shape of members may be exaggerated for convenience and clarity of description, and in actual implementation, variations of the illustrated shape may be expected. Accordingly, embodiments of the present invention should not be construed as being limited to a specific shape of a member or region shown herein. Hereinafter, various embodiments of the present invention will be described with reference to the drawings.

The present invention relates to an absorbent member directly or indirectly used in the human body, such as a sanitary napkin and a diaper using a natural absorbent, and a method of manufacturing the same.

In the present invention, the shape, range, and size used in the human body such as disposable sanitary napkins, diapers, and defecation pads are different, but the general properties and product configurations and manufacturing methods are similar, and the present invention is an absorbent member used for such various pads. Since it is a description of the present invention, a sanitary napkin that is most often used for convenience and understanding of description will be described as a representative example.

1 is a perspective view of a sanitary napkin according to an embodiment of the present invention, and FIG. 2 is a cross-sectional perspective view of a sanitary napkin according to an embodiment of the present invention.

Referring to FIG. 1, the sanitary napkin 10 includes a label 100 that comes into contact with skin (not shown); An absorbent body 200 made of an absorbent cotton 220 and an absorbent member 210 for absorbing menstrual blood penetrating through the label 100; It may include a waterproof layer 300 that prevents menstrual blood from leaking or burying during the activity. The absorber 200 may be disposed on the waterproof layer 300, and the label 100 may be disposed on the absorber 200. In one embodiment, a fixing member 400 protruding to both sides of the cover 100 and the waterproof layer 300 of the sanitary napkin 10 and fixing the sanitary napkin 10 to the underwear may be further included.

The fixing member 400 has an adhesive surface and may increase the activity by fixing the sanitary napkin 10 to the underwear. In the embodiment of the present invention, the length and shape of the sanitary napkin 10 is only an example, and the present invention is not limited thereto, and can be applied to various types of sanitary napkins such as tampons or absorbent pads used for other human bodies. The absorbent member 210 may be disposed in the absorbent cotton 220 in the form of a nonwoven fabric in the form of particles. Specifically, the absorbent member 210 in the form of particles may be trapped in the pores of the absorbent cotton 220 in the form of a nonwoven fabric.

In one embodiment of the present invention, the absorbent member 210 may include diatomaceous earth powder and algae powder. In addition, the absorbent member 210 may further include coffee bean powder. The coffee bean powder may be waste coffee powder. As will be described later, coffee bean powder prevents off-flavor of coagulated blood and can function as a blood coagulant.

In one embodiment, the diatomaceous earth powder used as an absorbent in the present invention may be a powder pulverized to an average particle diameter in the range of 10 μm to 80 μm. In general, diatomaceous earth is a fossilized single-celled plant called diatom, and more than 90% is made of amorphous silica (SiO ₂ ), and is a physicochemically stable inorganic material. In addition, as a porous material having numerous small pores on the surface of diatomaceous earth, it is light and has excellent hygroscopicity and deodorization properties. In addition, when organic substances in the pores present on the surface of the diatomaceous earth are removed, the surface area is maximized, and light weight, hygroscopicity and deodorization properties can be further improved.

Such diatomaceous earth powder has a similar or better absorption rate of menstrual blood compared to a conventional super absorbent synthetic resin (SAP). The diatomaceous earth powder according to the embodiment of the present invention is used as an absorbent for sanitary napkins, and based on a fast absorption rate, menstrual blood is quickly absorbed into the absorption member at the beginning of menstruation, thereby preventing the user's skin from getting wet.

The algae powder used as an absorbent in the present invention may contain at least one selected from the group consisting of sea algae and sea grasses rich in water-soluble fiber. The seaweed may be at least one of green algae, brown algae, and red algae. In these seaweeds, the green algae can be found in relatively shallow and bright places, and the brown algae and the red algae in turn can be found in gradually deep and dark places. The green algae may include brown green algae, thorn green or single green algae, and the brown algae include seaweed, kombu, red haricot or daikon radish, and the red algae may include laver, walnut agar, or unequal gasari. The seaweed may include turtle horses, jalppi, or horsepis. However, the absorbent member 210 of the present invention is not limited to these. In addition, salt marsh plants or mangroves rich in water-soluble fiber may be used alone or in combination with them. The algae powder is not limited to the powder of algae living in the ocean, and the powder of fresh-water algae living in the land water system, soil or rocks such as a pond, lake or rice field may be applied. For example, as applicable freshwater algae powder, there is trentepohlia or chlorococcum. Such freshwater algae include axle algae, green algae, green worms, yellow green algae, golden algae, flagella, grizzly earth algae, blue-green algae, or brown algae, and the present invention is not limited to these examples.

In general, the algae does not absorb moisture faster than the diatomaceous earth, but the water content is very high. For example, the weight of the algae in the fully hydrated state can be increased by about 8 to 10 times compared to the weight of the algae in the completely dried state, and the moisture content of the algae is as high as about 800 to 1000%. The reason why the water content of algae is so high is that it contains a large amount of water-soluble fiber. In general, in the case of a general woman, menstrual bleeding of 50 mL to 100 mL over 3 to 6 days at one menstruation, although it varies from person to person, but usually there is a menstrual bleeding amount of 5 mL to 15 mL per day. About 2 to 5 sanitary napkins may be used. Although there may be some differences depending on the manufacturing method of the sanitary napkin or the composition ratio of the absorbent member, if algae powder is used as an absorbent for sanitary napkins, the number of sanitary napkins used per day can be reduced, and even if excessive menstrual blood bleeds temporarily, the entire surface of the absorbent member As it can be safely absorbed, it is possible to prevent the user's skin from getting wet because there is no fear of menstrual blood leakage in the label 100. As a two-stage absorption mechanism in which moisture is absorbed by diatomaceous earth with a fast absorption rate and additional menstrual blood is absorbed by algae is possible, the diatomaceous earth does not absorb excessively at a rapid and rapid rate like conventional chemical absorbents. After absorption, it is slowed down by algae powder and a sufficient amount is stably absorbed.

In one embodiment, the coffee bean powder optionally added may be a powder obtained by finely pulverizing coffee beans or coffee grounds to have an average particle diameter of 0.1 mm to 5 mm. Coffee beans are made by roasting green beans made by peeling and drying the seeds inside the coffee tree. The peeling process of coffee beans obtains coffee beans through dry processing or flush processing, and the dry processing literally removes the pulp by drying, and in the flush processing, the coffee beans are soaked in water and the pulp falls off. It is washed and processed. The coffee beans obtained by peeling are baked or roasted to complete brownish coffee beans through roasting.

In addition, the powder of coffee grounds (or waste coffee powder) can be expected to have the same effect as the coffee beans, rather, the process of pulverizing the coffee beans can be omitted, and the advantage of recycling waste can be obtained. In the present specification, coffee bean powder refers to powder of coffee beans before roasting, powder of coffee beans after roasting, waste coffee powder, or a mixture thereof.

The coffee bean powder has an adsorption ability of adsorbing and removing menstrual blood as much as its own weight and off-flavor of menstrual blood through its own fine pores. In addition, the coffee bean powder contains caffeine, tannins, proteins, lipids, sugars, and the like, and the caffeine component may help relieve blood circulation and menstrual pain when absorbed in the body, and the tannin component coagulates blood. It works to let you know.

In addition, coffee bean powder can be used by immersing in brine, in which case the coffee bean powder is sterilized to increase preservation. Moreover, in the case of using coffee grounds as coffee bean powder, it may be more useful to use it after sterilization through saline immersion.

When the coffee bean powder is additionally included in the absorbent member, menstrual blood absorbed into the absorbent member is coagulated or gelled, so that menstrual blood does not easily escape from the absorbent member even when there is external pressure. Accordingly, the absorbent member containing coffee bean powder has an advantage that the absorption of menstrual blood is increased, has an effect as a deodorant fragrance, and the absorbed menstrual blood does not easily leak out of the label by external pressure, so that the user can use it more stably.

As described above, in place of the superabsorbent polymer (SAP) used as an absorbent in the conventional sanitary napkin manufacturing field, in the present invention, natural absorption that can induce even dispersion and condensation of absorbed menstrual blood as well as rapid absorption of menstrual blood. By manufacturing a sanitary napkin including the member, it is possible to not only improve the discomfort felt when the sanitary napkin is used, but also to obtain effects not obtained with conventional chemical synthetic materials such as skin protection, sterilization, pain relief and soothing effects. In addition, it can be applied to the existing sanitary napkin manufacturing process without a separate additional manufacturing process, and production costs can be reduced compared to natural pulp products, thereby enabling mass production. Moreover, it can prevent forest damage compared to natural pulp absorbents, and has the advantage of being environmentally friendly, biodegradable in nature.

In one embodiment, the absorbent member 210 constituting the absorbent body 200 includes a natural absorbent of diatomaceous earth powder and algae powder as essential components, and optionally may further include coffee bean powder. Diatomaceous earth powder, algae powder, and coffee bean powder included in the absorbent member 210 may be used in the form of fine particles.

In one embodiment, the method of pulverizing diatomaceous earth powder, algae powder, and coffee bean powder into granules (eg, particles) and the particle form can be prepared by various conventional methods such as general crushing and cutting, and a grinder, but preferably In the present invention, the natural absorbent can be crushed in the form of particles using the same method as the mechanical roll mill operation used when grinding red pepper powder or rice. In the present invention, as the natural absorbent is finely pulverized, the fibrous tissue becomes softer and the contact surface area increases, so that the absorption rate and the amount of absorption of menstrual blood can be further increased compared to manufacturing with a large particle size by cutting or cutting. The absorbent member 210 pulverized by the above-described manufacturing method may be made into a normal size that is easy to manufacture a sanitary napkin, but if the particle size is large, a foreign body sensation may be felt, and if the particle size is too small, the particles are attracted from the inside of the absorbent cotton 220 The phenomenon or particles may leak out of the label 100 of the sanitary napkin 10. Therefore, the particle size of the absorbent member 210 is not too large or too small in consideration of the materials and characteristics of the sanitary napkin 10 and the absorbent cotton 220.

In one embodiment, the diatomaceous earth powder as a natural absorbent constituting the absorbent member 210 may have an average particle diameter in the range of 10 　 μm to 80 μm, and specifically in the range of 30 μm to 60 μm. In addition, the algae powder may have an average particle diameter in the range of 0.05 mm to 5 mm, and specifically in the range of 0.1 mm to 3 mm. In addition, the coffee bean powder may have an average particle diameter in the range of 0.1 mm to 5 mm, and specifically in the range of 0.5 mm to 2 mm.

In one embodiment, as a result of a blending test on 20 adult women, the absorbent member 210 manufactured including diatomaceous earth powder and algae powder could not smell the fishy smell peculiar to algae, which included diatomaceous earth powder together. There is a reason that diatomaceous earth powder adsorbs and shields the smell of fishy algae due to odor. However, during menstruation, women become psychologically sensitive and smell from menstrual blood and vaginal secretions as the time elapses when the constitution and menstrual blood leave the body, and this is clearly the reason why women who use sanitary pads are psychologically uncomfortable in use. Do. In order to solve this problem, some sanitary napkin products are added with herbal medicinal herbs of mugwort or compounds that cause aroma, but this is rather a factor that causes off-flavor along with the odor of menstrual blood. It is not desirable because there are women who hate it. Accordingly, in the embodiment of the present invention, algae powder having a high absorption rate due to a large amount of water-soluble fiber is used, and diatomaceous earth powder having a high adsorption power for odors and foreign matters is used because it has fine pores on the surface, and coffee bean powder is further included if necessary. By doing so, the absorption rate of menstrual blood is improved, and odors generated from various components can be absorbed fundamentally so as to enable deodorization.

In the manufacture of a general sanitary napkin, the method of adding an absorbent is not adhered to or fixed to the absorbent cotton 220, but is distributed evenly within the fine and homogeneous absorbent cotton 220. Also in the present invention, the method of adding the absorbent is A general method of manufacturing a sanitary napkin can be applied.

The present invention is to develop a sanitary napkin that is not harmful and has a beneficial effect on the environment by using the natural absorbent 210. In the present invention, the absorbent body 200 includes an absorbent cotton 220 and an absorbent member 210. The absorbent cotton 220 may include one or more selected from the group consisting of natural cotton and biodegradable resin. The biodegradable resin may be a biodegradable polyester prepolymer. Specifically, the biodegradable resin is polylactic acid (PLA), poly(butyrene succinate) (PBS), poly(butyrene succinate-adipate) copolymer (PBSA) and poly(butylene adipate-terephthalate). Copolymer (PBAT), polycaprolactone (PCL), polyglycolic acid (PGA), and may include one or more selected from the group consisting of polyhydroxybutyric acid (PHB). The present invention is not limited to these, and can be prepared from any ingredient harmless to the human body. Preferably, the absorbent cotton 220 is preferably made of a natural vegetable cotton of cotton or pulp, and more preferably made of a natural material of corn chitosan starch such as polylactic acid (PLA), and does not significantly damage the forest. It is desirable to be biodegradable in.

In addition, in one embodiment, when such a natural material or biodegradable material is applied not only to the absorbent cotton 220 but also to the label 100 and the waterproof layer 300, a sanitary napkin that is 100% biodegradable in nature together with the natural absorbent member 210 Can be provided.

In the following, the features and advantages of the present invention will be described with reference to specific embodiments selected from the above-described materials among the above-described embodiments and the composition ratio range disclosed thereto. The following disclosure is for illustrative purposes only, and the present invention is not to be construed as being limited thereto.

[Example]

Example 1. Fabrication of absorbent member

In the present invention, the synthetic compound superabsorbent resin (SAP), which is a conventional absorbent for sanitary napkins, is not used, but is abundantly present in its natural state, and the moisture absorption rate is excellent due to the high content of water-soluble fiber, and is beneficial for bleeding from the skin and menstruation of women. A sanitary napkin is manufactured using an absorbent member made of diatomaceous earth powder, algae powder, and coffee bean powder rich in minerals. In addition, according to the present invention, a sanitary napkin made of a natural absorbent member rapidly absorbs moisture from menstrual blood and becomes a gel, and at the same time, a natural coagulation reaction with a small amount of iron and calcium in the blood occurs, so that menstrual blood leaks or You can prevent it from coming out.

Table 1 below shows the results of comparing the performance of absorbents used in sanitary napkins.

division Example Comparative example One 2 One 2 3 4 5 Type of absorbent Diatomaceous earth + seaweed Diatomaceous earth + seaweed +
Coffee beans Diatomaceous earth Seaweed Coffee beans pulp Super absorbent polymer Absorbent weight (g) 4 4 4 4 4 4 4 Absorption amount (g) 12 12 12 12 12 12 12 Initial absorption time (sec) 0.1 0.2 0.1 0.5 One 0.5 0.1 Final absorption time (sec) 3.0 3.5 One 2.5 3 3 2 Gelation (coagulation) U U U U radish radish U Burying Less Less Less middle middle height Less Leaking Less Less middle Less middle middle Less Off-flavor Less Less middle height middle height height Example 1: Diatomaceous earth powder / seaweed powder = 1/10 weight ratio
Example 2: Diatomaceous earth powder / seaweed powder / coffee beans powder = 1/10/7 weight ratio
Comparative Example 5: Super absorbent polymer (SAP, LG Chem)

In Table 1 above, the initial absorption time is the time that moisture is absorbed as soon as the absorbent comes into contact with the absorbent, and the final absorption time is the time required for the blood to soak into the absorbent. Specifically, in the case of an absorbent having a relatively fast absorption rate, the initial absorption time is expected to be short, and for an absorbent having a relatively slow absorption rate, the final absorption time is expected to be lengthened.

In the initial absorption time, the absorbents of Examples 1 and 2 showed similar or improved absorption rates to those of diatomaceous earth or superabsorbent resin, and were found to be superior to the natural absorbents of Comparative Examples 2, 3 and 4. Diatomaceous earth or superabsorbent resin had a high initial absorption rate, but it can be seen that the absorbents proposed in Examples 1 and 2 also exhibit an initial absorption rate comparable to or higher than that of diatomaceous earth or superabsorbent resin.

In the final absorption time, Examples 1 and 2 were absorbents containing diatomaceous earth and seaweed powder at the same time, and the final absorption time was significantly longer compared to the absorbent containing only diatomaceous earth or superabsorbent resin, and seaweed, coffee beans or pulp It can be seen that the final absorption time is longer than or equal to compared to the absorbent containing alone.

In addition, since Examples 1 and 2 contained diatomaceous earth and seaweed powder at the same time, it was confirmed that the water content as well as the absorption rate was maintained high, so that blood did not leak out of the absorbent or stained from the surface. In particular, the absorbent of Example 2 further contained coffee beans and acted as a blood coagulant, so that it could not be confirmed that the absorbent leaked out of the absorbent and remained on the surface. On the other hand, in the case of the absorbent containing diatomaceous earth, seaweed, and super absorbent resin alone, it was confirmed that the phenomenon of leakage out of the absorbent and burying from the surface was severe.

In addition, in the off-flavor, the super absorbent polymer had a natural compound smell, and the seaweed powder had a fishy off-flavor like the smell of the sea. In general, if algae powder such as seaweed is contained, an off-flavor such as sea odor may be expected.The absorbents of Examples 1 and 2 include diatomaceous earth powder or coffee bean powder in addition to seaweed powder, and their adsorption Due to the action, I could not feel any off-flavors, such as the fishy smell of the algae powder, but rather a coffee scent.

3A, 3B and 3C are diagrams showing particle shapes of diatomaceous earth powder, seaweed powder, and coffee bean powder used as natural absorbents. 3D is a view showing a mixture of diatomaceous earth powder and seaweed powder used as a natural absorbent for sanitary napkins according to an embodiment of the present invention. 3E is a view showing a mixture of diatomaceous earth powder, seaweed powder, and coffee bean powder used as a natural absorbent for sanitary napkins according to an embodiment of the present invention. 4A and 4B are diagrams showing pulp and super absorbent polymer used as absorbents for sanitary napkins in the related art.

The absorbent member provided by the present invention exhibits excellent effects as described above, and this effect is realized by including diatomaceous earth powder, algae powder, and coffee bean powder in a predetermined content ratio if necessary. In one embodiment, when the absorbent member includes two components of diatomaceous earth powder and algae powder, based on 1 part by weight of diatomaceous earth powder, the algae powder is in the range of 5 to 20 parts by weight, preferably 10 to 20 parts by weight. It can be included as a sub-range.

In one embodiment, in the case where the absorbent member includes three components of diatomaceous earth powder, algae powder and coffee bean powder, based on 1 part by weight of diatomaceous earth powder, the algae powder is in the range of 5 to 20 parts by weight, preferably It may be included in the range of 10 to 20 parts by weight, the coffee bean powder may be included in the range of 1 to 10 parts by weight, preferably 1 to 10 parts by weight.

The absorbents included in the absorbent member are in a complementary relationship in terms of absorption rate and moisture content. For example, the absorption rate of menstrual blood is controlled by diatomaceous earth powder having a fast absorption rate in the beginning, and algal powder having a moisture content higher than the absorption rate is finally used. Menstrual blood is absorbed through a two-stage absorption mechanism that controls the absorption rate of menstrual blood and external leakage.

Specifically, the absorbent member may contain algae powder in the range of 5 to 20 parts by weight based on 1 part by weight of the diatomaceous earth powder. At this time, if the content of algae powder is less than 5 parts by weight compared to the weight of the diatomaceous earth powder, the content of the diatomaceous earth powder is relatively increased, so that the absorption rate of menstrual blood is too high at the beginning, so that not only the menstrual blood but also the beneficial moisture in the contacted body is absorbed. It may cause dry skin and various female diseases. On the other hand, if the content of the algae powder exceeds 20 parts by weight compared to the weight of the diatomaceous earth powder, the content of the diatomaceous earth powder is relatively reduced. By being coagulated and present, the user's skin may become moist and the off-flavor of menstrual blood may leak out.

In addition, the absorbent member may further include coffee bean powder in the range of 1 to 10 parts by weight based on 1 part by weight of the diatomaceous earth powder. At this time, if the content of the coffee bean powder is less than 1 part by weight compared to the weight of the diatomaceous earth powder, the effect of improving the absorption rate and absorption amount of menstrual blood cannot be expected, as well as blood caused by the caffeine component contained in the coffee bean powder. It is not possible to obtain pharmacological effects such as improvement of circulation and relief of menstrual pain, and blood coagulation by tannins. On the other hand, if the content of coffee bean powder exceeds 10 parts by weight relative to the weight of the diatomaceous earth powder, the content of the diatomaceous earth powder and the algae powder is relatively reduced, so that the effect of the menstrual blood absorption mechanism consisting of two steps can be expected. none.

Example 2. Preparation of sanitary napkin

As described above, the present invention is commonly obtained around the periphery instead of the synthetic compound super absorbent polymer (SAP) of an absorber known to be harmful to the human body in manufacturing a sanitary napkin having a structure of a label, an absorber, and a waterproof layer, and the content of water-soluble fiber is high. The production cost can be lowered by using diatomaceous earth powder, algae powder, and coffee bean powder, which are rich in minerals, which are excellent in water absorption rate and are beneficial for female skin and bleeding caused by menstruation.

In addition, in the case of sanitary napkins using a conventional synthetic compound superabsorbent resin (SAP), the superabsorbent resin absorbs menstrual blood and hardens, causing a foreign body sensation, which makes it inconvenient to wear the sanitary napkin. Through a two-stage absorption mechanism by algae and algae powder, only menstrual blood is quickly absorbed and absorption of beneficial ingredients such as moisture, which is beneficial to the skin as possible, is minimized, and the menstrual blood is softened by the blood coagulation action of the additional coffee bean powder. On top of that, there is also an advantage that it is not uncomfortable to wear when using a sanitary napkin because it is stably preserved in the absorbent member.

In one embodiment, the sanitary napkin 10 includes a label 100 that comes into contact with the skin (not shown); An absorbent body 200 made of an absorbent cotton 220 and an absorbent member 210 for absorbing menstrual blood penetrating through the label 100; It may include a waterproof layer 300 that prevents menstrual blood from leaking or burying during the activity.

In one embodiment, a Sophora flavescens Ait extract may be additionally applied to the surface of the label 100 that comes into contact with the skin (not shown). Gosam is a perennial plant that grows in common mountains and fields, and has yellow short hairs on its body. Its roots are thick, the stems stand upright, and the height is 80-120 cm. Leaves are alternate, pinnate compound leaves, about 15 cm long, and small leaves may be long oval. Its flowers are light yellow, forming raceme, and in early summer, a peduncle of about 20 cm in length at the tip of the branch, and a light yellow butterfly-shaped flower can bloom. Fruits are formed from September to October, and they have a cylindrical shape, with the seed and the seed being narrowed and shaped like a rosary. Gosam contains various types of alkaloids and flavonoids, and its main effects are anti-inflammatory, antibacterial, sterilizing, and effective in analgesic action, so it is useful as a drug for the treatment and prevention of gynecological diseases such as vaginitis and cold lice.

The Gosam extract is obtained by extracting and concentrating Gosam through a conventional natural product extraction method, and can be used as a concentrated liquid or as an extract obtained by powder drying the concentrate. The present invention does not specifically limit the properties of the Kosan extract, and does not distinguish between its origin and the same pharmacological action. Considering the convenience in the process, it may be desirable to spray and apply the concentrated liquid alpine extract to the label 100 by spraying.

The sanitary napkin to which the Gosam extract is additionally applied to the surface of the label 100 may enhance the deodorizing effect of menstrual blood or vaginal secretions due to the inherent pharmacological efficacy of Gosam and the natural product.

In one embodiment, the waterproof layer 300 may be a liquid-impermeable waterproof film that has breathability to allow air to pass through, but does not pass menstrual blood. The waterproof layer 300 is a sheet supporting the absorber 200, and has a liquid impermeability that allows air to pass through, but does not allow secretions to pass through. The waterproof layer 300 may be formed of a breathable waterproof film that can be biodegradable in nature as a material. Specifically, the waterproof layer 300 is polylactic acid (PLA), poly (butyrene succinate) (PBS), poly (butyrene succinate-adipate) copolymer (PBSA) and poly (butyrene adipate-tere). Phthalate) copolymer (PBAT), polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB) can be formed by using one or more biodegradable resins selected from the group consisting of as a material.

In one embodiment, the waterproof layer 300 may have micropores formed to allow air to pass through the waterproof film for the purpose of improving breathability. The micropores may physically form a ventilation hole in the waterproof film using mechanical equipment, or may be formed to allow air to pass through stretching during film processing. The present invention is not particularly limited with respect to the method of forming the micropores formed in the waterproof film, as a method commonly used in the art, any method of forming micropores harmless to the human body may be applied. In addition, various methods such as thermal bonding, pressure bonding, ultrasonic bonding, etc. may be used for bonding the waterproof layer 300 to the absorber 200.

5 is a photograph for comparing menstrual blood absorption states of a sanitary napkin (A) according to an embodiment of the present invention and a conventional sanitary napkin product (B) using a commercially available pulp absorbent. In the photograph of FIG. 5, 10 mL of blood was absorbed at the same location in the sanitary napkin (A) of the present invention and the conventional sanitary napkin product (B) in the same amount for comparison.

5, in the sanitary napkin (A) of the present invention, blood was evenly absorbed on the front surface of the absorber 200, no blood leakage to the surface of the label 100 was observed, and even when a constant external pressure was applied, blood No leakage was observed. On the contrary, in the conventional sanitary napkin product (B), blood is intensively absorbed in the local area of the absorber 200, so that blood leakage to the surface of the label 100 is confirmed, and when a certain external pressure is applied, the degree of blood leakage is excessive. I could observe.

According to the comparative experiment according to FIG. 5, the sanitary napkin of the present invention essentially contains diatomaceous earth powder and algae powder as absorbents, and additionally contains coffee bean powder, so that the initial and final menstrual blood through a two-step absorption mechanism. The absorption rate and amount of absorption were adjusted, and thus, menstrual blood is evenly absorbed over the entire area of the absorbent member, thereby preventing leakage of blood to the surface of the label, thereby preventing discomfort even when worn continuously.

6 is a photograph comparing states before and after absorption of water with respect to a sanitary napkin according to an embodiment of the present invention.

Referring to Figure 6, it can be confirmed the absorption state of the sanitary napkin according to an embodiment of the present invention. The picture on the left is a picture of measuring the weight of the manufactured sanitary napkin with an electronic balance, and the picture on the right is a picture of measuring the weight with an electronic balance while absorbing 70 mL of water. It can be seen that the sanitary napkin according to an embodiment of the present invention has excellent absorption power, but it shows about 13 times the absorption power compared to the weight of the absorbent. In addition, it can be confirmed again that even when absorbing a large amount of water, it is evenly absorbed over the entire area of the absorbent member.

According to the above, the sanitary napkin 10 according to the present invention basically removes harmful components and selects natural materials to provide various beneficial effects to the skin of women by using the sanitary napkin. It is safer and can mass-produce sanitary napkins that are helpful in promoting women's health, and its industrial value is very high. In addition, natural absorbent members that are selectively used are distributed all over the world, and anyone can easily obtain them, and are very inexpensive raw materials compared to chemical absorbents or pulp. Using this, it is possible to lower the consumer price of sanitary napkins through mass production, which has great social and industrial use value that can supply safe sanitary napkins at lower prices to economically and socially disadvantaged and young girls.

In addition, the adsorbent using coffee grounds added in small amounts has industrial value in reducing disposal costs and social public costs by recycling discarded coffee wastes.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and that various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

10: sanitary napkin
100; sign
200: absorber
210; Natural absorbent
220; Absorbent cotton
300; Waterproof layer
400; Fixed member

Claims (14)

As a biocompatible absorbent member comprising a natural absorbent including diatomaceous earth powder and algae powder having a plurality of fine pores,
The average particle diameter of the diatomaceous earth powder is in the range of 10 μm to 80 μm,
The average particle diameter of the algae powder is in the range of 0.05 mm to 5 mm,
A biocompatible absorbent member containing 5 to 20 parts by weight of the algae powder based on 1 part by weight of the diatomaceous earth powder. The method of claim 1,
Biocompatible absorbent member further comprising coffee bean powder. The method of claim 1,
The algae powder is a biocompatible absorbing member comprising at least one selected from the group consisting of seaweed, seaweed, or freshwater algae. The method of claim 3,
The seaweed is at least one species selected from the group consisting of seaweed, kelp, hatban, totgal green, thorny green, single green, laver, green agar, and non-equivalent agar,
The seaweed is one or more biocompatible absorbent members selected from the group consisting of turtle horses, horse blood and horse blood. The method of claim 2,
The coffee bean powder is a biocompatible absorbent member having fine pores. The method of claim 2,
The biocompatible absorbent member having an average particle diameter of the coffee bean powder in the range of 0.1 mm to 5 mm. delete The method of claim 2,
Based on 1 part by weight of the diatomaceous earth powder,
The biocompatible absorbent member containing the algae powder in a content ratio of 5 to 20 parts by weight and 1 to 10 parts by weight of coffee bean powder. An absorber that absorbs menstrual blood and comprises an absorbent cotton and the biocompatible absorbent member according to any one of claims 1 to 6 and 8;
A label laminated on the absorber; And
A sanitary napkin comprising a waterproof layer for preventing menstrual blood from leaking out of the absorber. The method of claim 9,
A sanitary napkin on which the surface of the label is coated with Gosam (苦蔘) extract. The method of claim 9,
The absorbent cotton is one or more sanitary napkins selected from the group consisting of natural cotton and biodegradable resin. The method of claim 9,
The absorbent cotton is polylactic acid (PLA), poly(butyrene succinate) (PBS), poly(butyrene succinate-adipate) copolymer (PBSA) and poly(butyrene adipate-terephthalate) copolymer ( PBAT), polycaprolactone (PCL), polyglycolic acid (PGA), and at least one biodegradable resin selected from the group consisting of polyhydroxybutyric acid (PHB), a sanitary napkin. The method of claim 9,
The waterproof layer is a sanitary napkin having micropores formed to allow air to pass therethrough. The method of claim 13,
The waterproof layer is polylactic acid (PLA), poly (butyrene succinate) (PBS), poly (butylene succinate-adipate) copolymer (PBSA) and poly (butyene adipate-terephthalate) copolymer (PBAT ), polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB) at least one selected from the group consisting of a sanitary napkin processed into a film.

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