KR20190120679A - 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 sanitary or medical article comprising the absorbent member. The absorbent member according to an embodiment of the present invention includes natural algae powder, which is easily available in nature and contains large amounts of water-soluble fiber, and diatomaceous earth powder having a high water absorption rate, as essential components, and optionally further comprises coffee beans powder. The absorbent member according to an embodiment of the present invention is free of chemical harmful components by including natural components, and further can provide a beneficial effect on the human body, and thus is useful as an absorbent material for hygiene or medical supplies used for the purpose of absorbing bodily secretions or blood.

Description

Biocompatible Absorbing Member and Sanitary Napkin including the Same {Bio-compatible absorbing member and sanitary napkin having the same}

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

Sanitary napkin is a hygiene product that absorbs the blood discharged by menstruation and can be selected according to the amount of menstruation or usage during menstruation. The sanitary napkin may be classified into a disposable sanitary napkin, a cotton sanitary napkin, an internal type sanitary napkin (tampon, menstrual cup) according to a shape or a material. In general, sanitary napkins are used a lot of disposable sanitary napkins.

The disposable sanitary napkin is composed of a triple structure of a label, an absorbent body and a waterproof layer. The label may be made of polyethylene, man-made fibers or rayon in direct contact with the skin. The absorber may be composed of pulp or super absorbent polymer (SAP) to absorb physiological blood. The superabsorbent polymer is generally a polymer material capable of absorbing water corresponding to several hundred times its own weight, and can absorb menstrual blood through the osmotic principle. 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 polymer 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 absorbs hundreds to 1,000 times water by weight. Has Currently, most sanitary napkins and absorbent pads use petrochemical absorbers in the form of particles made of sodium polyacrylate. However, the part of the body that the sanitary pad is in contact with is the most sensitive skin tissue in the body and is directly connected to other important body organs, which may cause skin diseases such as itching and soreness or menstrual pain or menstrual disorder caused by the growth of bacteria. In rare cases, the influx of potentially carcinogenic chemicals can cause serious side effects, such as infertility in women. In addition, the super absorbent polymer may absorb not only menstrual blood but also beneficial moisture in the contacted human body due to its strong absorption force, causing dry skin and thereby various female diseases.

For this reason, instead of the synthetic resin, there is an attempt to use a relatively chlorine-free natural pulp as an absorber, such as cellulose taken from 100% pulp. However, since the natural pulp is manufactured by a process of interlacing wood pulp by using multiple layers of starch, manufacturing costs are increased, and the use of natural pulp damages forests and it is difficult to consider it environmentally friendly.

In addition, since a sanitary napkin made of a synthetic resin as a raw material does not dissolve in water and must be separately collected and disposed of, a sanitary napkin is a cause of environmental pollution.

Therefore, the technical problem to be solved by the present invention, while the production cost is low, the absorption ability of menstrual blood is improved, as well as the effect of sterilization, deodorization, skin protection, or menstrual pain relief while suppressing and reducing various side effects of the use of sanitary napkins. The same positive efficacy is also expressed, and it is to provide an absorbent member that is environmentally friendly and free of environmental pollution without the problem of forest damage.

Another object of the present invention is to provide a sanitary napkin including an absorbent member having the aforementioned advantages.

According to one 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 beans powder.

According to an embodiment of the present invention, the algae powder included in the absorbent member includes water-soluble fiber, and may include one or more selected from the group consisting of algae, seaweeds and freshwater algae. According to a specific embodiment, the seaweed may include one or more selected from the group consisting of wakame seaweed, kelp, hatban, chopped blue sea, spiny seaweed, unidentified seaweed, laver, wood starfish and instarfish. The seaweed may include one or more selected from the group consisting of turtle horse, halpi and horse halpi.

According to one embodiment of the invention, the average particle diameter of the diatomaceous earth powder as a component included in the absorbent member may range from 10 μm to 80 μm, the average particle diameter of the algae powder may range from 0.05 mm to 5 mm, and coffee The average particle diameter of the coffee beans 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 based on 1 part by weight of diatomaceous earth powder, the algae powder is included in the range of 5 to 20 parts by weight, coffee beans powder is included in the range of 1 to 10 parts by weight. Can be.

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 one embodiment of the invention, the sanitary napkin absorbs physiological blood, the absorbent comprising an absorbent cotton and a biocompatible absorbent member defined above; A label stacked on top of the absorbent body and in contact with the skin; And it may include a waterproof layer to prevent the menstrual blood from leaking to the outside from the absorber.

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

According to an embodiment of the present invention, the waterproof layer may be a waterproof film having a liquid impermeability that is breathable so that air can pass through, but not penetrating 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 through. The waterproofing layer is polylactic acid (PLA), poly (butylene succinate) (PBS), poly (butylene succinate-adipate) copolymer (PBSA) and poly (butylene adipate-terephthalate) copolymer (PBAT) ), Polycaprolactone (PCL), polyglycolic acid (PGA) and polyhydroxybutyric acid (PHB) may be prepared by processing one or more biodegradable resins selected from the group of films.

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 the menstrual blood through a two-stage absorption mechanism that complements each other in terms of the absorption rate and the water content for menstrual blood. Specifically, the diatomaceous earth powder is rapidly absorbed quickly by the relatively quick absorption of diatomaceous earth and finally absorbed by the algae powder having a relatively low absorption rate but high moisture content, but the absorbed menstrual blood does not leak out of the label. It absorbs menstrual blood through a two-stage absorption mechanism that ensures stable retention. As a result, the absorbed blood is not absorbed only at the local part of the absorbent member, but is evenly absorbed in the entire area, thereby preventing the menstrual blood from leaking to the surface of the label. .

In addition, the absorbent member may further include coffee beans powder as a coagulant, thereby preventing the blood absorbed by the absorbent member from easily leaking to the outer surface, thereby increasing the wearing comfort.

In addition, by using a natural absorbent, such as diatomaceous earth powder, algae powder, coffee beans powder, the absorbent member can reduce the various side effects of using a sanitary napkin, as well as additional skin protection, antiseptic, and menstrual pain relief effect. Can be.

In addition, the diatomaceous earth powder included in the absorbent member is similar to or better than the absorption rate of the menstrual blood compared to the conventional super absorbent polymer compound, it is possible to improve the absorption ability of the menstrual blood.

In addition, since the algae powder included in the absorbent member has an excellent absorption rate compared with the conventional super absorbent polymer, the absorbent member can improve the amount of menstrual blood absorption to the absorbent member weight. In addition, the use of resource-rich algae in place of natural pulp can reduce forest degradation and reduce the cost of producing products.

In addition, according to an embodiment of the present invention, the sanitary napkin including the absorbent member can be expected to have the excellent effect as the absorbent member. In addition, by applying a ginseng extract on the label surface of the sanitary napkin, pharmacological efficacy such as sterilization, deodorization, skin protection, menstrual pain relief effect can be further improved.

In addition, the sanitary napkin is manufactured using a biodegradable eco-friendly material in nature, it can significantly reduce the environmental pollution caused by the disposal of the lung sanitary napkin.

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 forms of diatomaceous earth powder, wakame powder, and coffee beans powder used as a natural absorbent.
Figure 3d is a view showing the particle form of the diatomaceous earth powder and wakame powder mixture used as a natural absorbent of the sanitary napkin according to an embodiment of the present invention.
Figure 3e is a diagram showing the particle form of the diatomaceous earth powder, wakame powder and coffee beans powder mixture used as a natural absorbent of sanitary napkin according to an embodiment of the present invention.
4A and 4B are views showing pulp absorbents and superabsorbent resins conventionally used as absorbents for sanitary napkins.
Figure 5 is a photograph comparing the menstrual blood absorption state of the conventional sanitary napkin products using a commercially available sanitary napkin and pulp absorbent according to an embodiment of the present invention.
Figure 6 is a photograph comparing the state before and after absorbing water for the sanitary napkin according to an embodiment of the present invention.

Hereinafter, exemplary 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 fully explain the present invention to those skilled in the art, and the following examples can be modified in various other forms, and the scope of the present invention is It is not limited to an Example. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the 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, the same reference numerals in the drawings refer to the same elements. As used herein, the term “and / or” includes any and all combinations of one or more of the listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. Also, as used herein, "comprise" and / or "comprising" specifies the presence of the mentioned shapes, numbers, steps, actions, members, elements and / or groups of these. It is not intended to exclude the presence or the addition of one or more other shapes, numbers, acts, members, elements and / or groups.

Although the terms first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Thus, the first member, part, region, layer or portion, which will be discussed below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.

Embodiments of the present invention are described below with reference to the drawings, which schematically illustrate ideal embodiments of the present invention. In the drawings, for example, the size and shape of the 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 limited to the specific shapes of members or regions shown herein. Hereinafter, various embodiments of the present invention will be described with reference to the drawings.

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

In the present invention, the shape and range of use and size used for the human body, such as disposable sanitary napkins, diapers, bowel pads, and the like, are different from each other. The present invention will be described with reference to a sanitary napkin, which is most used to help the convenience and understanding of the description.

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

Referring to FIG. 1, the sanitary napkin 10 includes a label 100 which comes into contact with skin (not shown); Absorber 200 consisting of an absorbent cotton 220 and the absorbing member 210 to absorb the menstrual blood permeated through the label 100; It may include a waterproof layer 300 to prevent menstrual blood leakage or buried during activity. The absorber 200 may be disposed on the waterproof layer 300, and the cover 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 may have an adhesive surface to fix the sanitary napkin 10 to the underwear to increase activity. In the embodiment of the present invention, the length and shape of the sanitary napkin 10 is only one example, and the present invention is not limited thereto and may be applied to various types of sanitary napkins such as tampons or absorbent pads used in other human bodies. Absorbing member 210 may be disposed in the absorbent cotton 220 of the nonwoven form in the form of particles. Specifically, the absorbent member 210 in the form of particles may be captured in the pores in the absorbent cotton 220 of the nonwoven fabric.

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

In one embodiment, the diatomaceous earth powder used in the present invention as an absorbent may be a powder ground 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 (,), more than 90% of amorphous silica (SiO ₂ ) is a physicochemically stable inorganic material. In addition, as a porous material having a myriad of small pores on the surface of the diatomaceous earth, it is light, hygroscopic, and excellent deodorizing. In addition, by removing the organic matter in the pores present on the surface of the diatomaceous earth can maximize the surface area can further improve the light weight, hygroscopicity and deodorization.

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

The algae powder used as the absorbent of the present invention may include at least one selected from the group consisting of water-soluble fiber-rich sea algae and sea grasses. The algae may be at least one of green algae, brown algae and red algae. In these seaweeds, the green algae can be found in a relatively shallow and bright place, the brown algae and the red algae in turn in a deep and dark place. The green algae may include brown seaweed, spiny seaweed or single seaweed, and the brown algae may include seaweed, kelp, hatban or sauerkraut, and the red algae may include laver, wood starfish or instarfish. The seaweed may include turtle horse, halpi, or horse halpi. However, the absorbent member 210 of the present invention is not limited thereto. In addition, salt paper plants or mangroves rich in water-soluble fiber may be used alone or in combination. The algae powder is not limited to a powder of algae inhabiting the ocean, and may be applied to a powder of fresh-water algae inhabiting terrestrial water, soil or rocks such as ponds, lakes or rice fields. For example, as an applicable freshwater algae powder, there are trentepohlia or chlorococcum. Such freshwater algae include axles, green algae, green algae, yellow algae, golden algae, coarse algae, grip toe algae, algae, or brown algae, but the present invention is not limited to these examples.

In general, the algae are not as fast as moisture absorption rate compared to the diatomaceous earth, but very high in water content (含水 率). For example, the total water content of algae can be increased by approximately 8 to 10 times relative to the total weight of algae, so that the water content of algae is as high as approximately 800 to 1000%. The high water content of algae is due to the large amount of water-soluble fiber in algae. In general, menstrual bleeding is 50 mL to 100 mL over three to six days at a time of menstruation, and there is a physiological bleeding amount of about 5 mL to 15 mL per day, although there are individual differences. Two to five sanitary napkins may be used. The algae powder can reduce the number of sanitary napkins used per day when used as an absorbent for sanitary napkins, and even if excessive menstrual blood is bleeding temporarily, As it can be safely absorbed, there is no fear of leaking menstrual blood on the cover 100 can prevent the user's skin is wet. The two-stage absorption mechanism, in which the absorption rate of moisture is immediately absorbed by the diatomaceous earth and the absorption of additional menstrual blood is achieved by algae, enables the diatomaceous earth to be absorbed quickly and rapidly without excessive absorption as in conventional chemical absorbents. After absorption, it is slowed down by the algae powder and a sufficient amount is stably absorbed.

In one embodiment, the coffee beans powder that is optionally added may be a finely ground coffee beans or ground coffee beans to an average particle diameter of 0.1 mm to 5 mm range. Coffee beans are made by roasting green beans made by peeling and drying the seeds in the coffee tree. The peeling process of the coffee fruit is a coffee bean through a dry process or a flush process, and the dry process is literally dried to remove the pulp, and the flush process soaks the coffee fruit in water so that the pulp falls It is washed and processed. The peeled coffee bean is browned coffee beans through roasting.

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

The coffee beans powder has an adsorption ability to adsorb and remove physiological blood and odor of menstrual blood as much as its own weight through its own fine pores. In addition, the coffee beans powder contains caffeine, tannin, protein, lipids, sugars, and the like, the caffeine component may help to relieve pain in blood circulation and dysmenorrhea when absorbed in the body, the tannin component coagulate blood To act.

In addition, the coffee beans powder may be used by immersion in brine, in which case the coffee beans powder is sterilized to increase the shelf life. Furthermore, in the case of using coffee grounds as coffee beans powder, it may be more useful to use sterilized by saline immersion.

When the coffee bean powder is further included in the absorbent member, the menstrual blood absorbed into the absorbent member may be coagulated or gelled, so that the menstrual blood may not easily escape from the absorbent member even when there is an external pressure. In this case, the absorbent member including the coffee beans powder has an increase in absorption of menstrual blood, 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 super absorbent polymer (SAP) used as an absorbent in the conventional sanitary napkin manufacturing field, the present invention, in addition to the rapid absorption of menstrual blood, natural absorption that can induce even dispersion and condensation of the absorbed menstrual blood By producing the sanitary napkin including the member, not only can the discomfort felt when using the sanitary napkin is improved, but also the benefits not obtained from conventional chemical synthetic materials such as skin protection, sterilization, pain relief and soothing effects can be obtained. In addition, it can be applied to the existing sanitary napkin manufacturing process without additional manufacturing process, and can reduce the production cost compared to natural pulp products, thereby enabling mass production. Moreover, compared with natural pulp absorbents, forest degradation can be prevented, and there is an environmentally friendly advantage of biodegradation in nature.

In one embodiment, the absorbent member 210 constituting the absorber 200 may include a natural absorbent of diatomaceous earth powder and algae powder as an essential component, and optionally further include coffee beans powder. Diatomaceous earth powder, algae powder, coffee beans powder included in the absorbing 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 granular (eg, granular) forms and the granular form may be prepared by various conventional methods such as general crushing, cutting and 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, the more finely pulverized the natural absorbent can soften the fibrous tissue and the larger the contact surface area to increase the absorption rate and the absorption amount of menstrual blood as compared to the production of large particle size by cutting or cutting. Absorbing member 210 pulverized by the above-described manufacturing method may be made in a conventional size that is easy to manufacture sanitary napkins, but when the particle size is large, foreign matter may be felt, and when the particle size is too small, the particles are drawn inside the absorbent cotton 220. The phenomenon or particles may leak out of the cover 100 of the sanitary napkin 10. Therefore, the particle size of the absorbent member 210 is not too large or small in consideration of the material and properties 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, specifically, 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, specifically, in the range of 0.1 mm to 3 mm. In addition, the coffee beans powder may have an average particle diameter in the range of 0.1 mm to 5 mm, specifically 0.5 mm to 2 mm.

In one embodiment, as a result of a blinding test of 20 adult women, the absorbent member 210 including diatomaceous earth powder and algae powder was unable to smell the fishy smell peculiar to algae, which contained diatomaceous earth powder together. There is a reason that diatomaceous earth powder absorbs and smells algal fish due to the application. However, during menstruation, women are psychologically sensitive and physiological blood and vaginal secretions may smell as the body goes out over time, which is why women who use sanitary napkins are psychologically uncomfortable in use. Do. In order to solve this problem, some sanitary napkin products may add medicinal herbs of wormwood or compounds that cause scents, but this may cause odors with the smell of menstrual blood and according to taste Some women do not like to be undesirable. Therefore, in the embodiment of the present invention, because the water-soluble fiber has a high absorption rate of algae powder and at the same time has a fine pore on the surface using a diatomaceous earth powder having a high adsorption capacity for odors and foreign substances, and further comprises coffee beans powder as needed In this way, the absorption rate of physiological blood is improved, and adsorption is fundamentally possible to allow deodorization of odor generated from various components.

In the general sanitary napkin manufacturing method, the absorbent is added to be uniformly distributed in the inside of the fine and homogeneous absorbent cotton 220 rather than being adhered or fixed to the absorbent cotton 220. A general sanitary napkin manufacturing method may be applied.

The present invention is to develop a sanitary napkin using a natural absorbent 210, which is not harmful and has a beneficial effect on the environment. 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. The biodegradable resins are specifically polylactic acid (PLA), poly (butylene succinate) (PBS), poly (butylene succinate-adipate) copolymer (PBSA) and poly (butylene adipate-terephthalate) It may include one or more selected from the group consisting of copolymer (PBAT), polycaprolactone (PCL), polyglycolic acid (PGA) and polyhydroxybutyric acid (PHB). The present invention is not limited to these and can be prepared from any component that is harmless to the human body. Preferably, the absorbent cotton 220 is preferably using a natural vegetable cotton of cotton or pulp, more preferably made of a natural material of corn chitosan starch, such as polylactic acid (PLA), without natural damage to the forest Biodegradation is preferred.

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

In the following, the features and advantages of the present invention will be described, taking specific embodiments selected from the foregoing materials and the composition ratio ranges disclosed therein among the foregoing embodiments. The following disclosure is for illustrative purposes only and should not be construed as limiting the invention thereto.

EXAMPLE

Example 1 Preparation of Absorbing Member

In the present invention, a synthetic compound super absorbent polymer (SAP), which is an absorbent of a conventional sanitary napkin, is present in abundance in a natural state without using a synthetic absorbent, and has a high content of water-soluble fiber, which is excellent in water absorption and beneficial for bleeding caused by women's skin and menstruation. Sanitary napkins are manufactured using an absorbent member manufactured using diatomaceous earth powder, algae powder, and coffee beans powder rich in minerals. In addition, according to the present invention, a sanitary napkin made of a natural absorbing member rapidly absorbs the moisture of the menstrual blood and gels it, and at the same time, a small amount of iron calcium-like components in the blood occur and a natural coagulation reaction occurs, causing the menstrual blood to leak. You can prevent it from coming out.

Table 1 is a result of comparing the performance of the absorbent used in the sanitary napkin.

division Example Comparative example One 2 One 2 3 4 5 Absorbent Type Diatomaceous Earth + Seaweed Diatomite + Seaweed +
Coffee beans Diatomaceous earth Seaweed Coffee beans pulp Superabsorbent 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 Buried 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 / Wakame Powder / Coffee Bean Powder = 1/10/7 Weight Ratio
Comparative Example 5: Super Absorbent Polymer (SAP, LG Chemical)

In Table 1, the initial absorption time is the time absorbed as soon as moisture is in contact with the absorbent, and the final absorption time is the time taken for the blood to soak into the absorbent. Specifically, the initial absorption time is expected to be short for the absorbent having a relatively high absorption rate, and the final absorption time is expected to be long for the relatively low absorption rate.

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

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

In addition, Example 1 and Example 2, including the diatomaceous earth and wakame powder at the same time was confirmed that the absorption rate as well as the moisture content is maintained so that the blood leaked out of the absorbent or buried on the surface. In particular, the absorbent of Example 2 further contained coffee beans, which acted as a blood coagulant, leaked out of the absorbent, and was not found at all on the surface. On the other hand, in the case of the absorbent containing diatomaceous earth, wakame, superabsorbent resin alone, it was confirmed that the phenomenon of leakage and surface buried out of the absorbent is extreme.

In addition, in the off-flavor, the super absorbent polymer felt a natural compound smell of the polymer material, and the wakame powder was able to feel a vivid smell like the sea smell. In general, when the algae powder such as seaweed is contained, it may be expected to smell like sea odor. The absorbents of Examples 1 and 2 include diatomaceous earth powder or coffee beans powder in addition to seaweed powder, and their adsorption By the action, I could not feel any odor such as the vivid smell of algae powder, but coffee flavor.

3A, 3B, and 3C are diagrams illustrating particle forms of diatomaceous earth powder, wakame powder, and coffee beans powder respectively used as natural absorbents. Figure 3d is a view showing a mixture of diatomaceous earth powder and wakame powder used as a natural absorbent of sanitary napkin according to an embodiment of the present invention. Figure 3e is a diagram showing a mixture of diatomaceous earth powder, wakame powder and coffee beans powder used as a natural absorbent of the sanitary napkin according to an embodiment of the present invention. 4A and 4B are diagrams showing pulp and superabsorbent resin conventionally used as absorbents for sanitary napkins.

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 as 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 subrange.

In one embodiment, when the absorbent member contains three components of diatomaceous earth powder, algae powder and coffee beans 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, and may be included in the range of 1 to 10 parts by weight, preferably 1 to 10 parts by weight of the coffee beans powder.

Absorbents included in the absorbent member complement each other in terms of absorption rate and water content. For example, the diatomaceous earth powder is initially controlled by diatomaceous earth powder having a high absorption rate, and finally by algae powder having a higher moisture content than the absorption rate. It absorbs menstrual blood through a two-stage absorption mechanism that controls menstrual blood absorption rate and external leakage.

Specifically, the absorbent member may be included in the range of 5 to 20 parts by weight of algae powder based on 1 part by weight of diatomaceous earth powder. At this time, if the amount of algae powder is less than 5 parts by weight relative to the weight of diatomaceous earth powder, the content of diatomaceous earth powder is relatively increased, so that the absorption rate of menstrual blood is too high initially, so as to absorb not only menstrual blood but also beneficial moisture in the contacted human body. It can also cause dry skin and various female diseases. On the other hand, when the amount of algae powder exceeds 20 parts by weight relative to the weight of the diatomaceous earth powder, the content of diatomaceous earth powder is relatively reduced, and thus the blood that is not absorbed by the absorbent member due to the low rate of absorption of menstrual blood initially is labeled. By coagulated in the presence of the user's skin can be moistened and the odor of menstrual blood can leak out.

In addition, the absorbent member may further include coffee beans powder in the range of 1 to 10 parts by weight based on 1 part by weight of diatomaceous earth powder. At this time, if the content of coffee beans powder is less than 1 part by weight based on the weight of diatomaceous earth powder, the effect of improving the absorption rate and absorption of menstrual blood is not expected, and the blood by the caffeine component contained in the coffee beans powder Pharmacological effects such as improved circulation and pain relief of menstrual pain and blood coagulation effect by tannin components are not obtained. On the other hand, if the content of the coffee beans powder exceeds 10 parts by weight relative to the weight of the diatomaceous earth powder, the content of diatomaceous earth powder and algae powder is relatively reduced, the desired two-step absorption mechanism of menstrual blood can be expected. none.

Example 2. Preparation of Sanitary Napkins

As described above, the present invention is obtained in the vicinity of the synthetic compound superabsorbent resin (SAP) of the absorber known to be harmful to the human body in the manufacture of a sanitary napkin having a structure of a label, an absorber, a waterproof layer, and has a high content of water-soluble fiber. By using diatomaceous earth powder, algae powder, and coffee beans powder, which are excellent in water absorption and rich in minerals, which are beneficial for bleeding from women's skin and menstruation, manufacturing costs can be lowered.

In addition, the sanitary napkin using the conventional synthetic compound superabsorbent polymer (SAP) is a super absorbent polymer absorbs menstrual blood, hardening occurs, so that a foreign body feeling is felt, which is inconvenient to wear a sanitary napkin, diatomaceous earth powder of the present invention It absorbs only menstrual blood quickly through the two-stage absorption mechanism by algae powder and minimizes the absorption of beneficial ingredients such as moisture, which is beneficial to the skin, and softens the menstrual blood by the blood coagulation action of the coffee beans powder. Stability is also preserved in the absorbent member, so there is an advantage that the comfort is not comfortable when using the sanitary napkin.

In one embodiment, the sanitary napkin 10 includes a label 100 in contact with the skin (not shown); Absorber 200 consisting of an absorbent cotton 220 and the absorbing member 210 to absorb the menstrual blood permeated through the label 100; It may include a waterproof layer 300 to prevent menstrual blood leakage or buried during activity.

In one embodiment, the extract of Sophora flavescens Ait (도포) may be further applied to the surface of the label 100 which is in contact with the skin (not shown). Ginseng is a perennial herb growing in common mountains and fields with yellow short hairs on the body. Its root is thick, its stem stands straight, and its height reaches 80-120 cm. Leaves are alternate, pinnate leaf, 15 cm long, small leaves can be long oval. Its flowers are light yellow in color, and in early summer, 20 cm of peduncles come out at the ends of the branches, and light yellow butterfly-shaped flowers can bloom. Fruits come from September to October, and are cylindrical in shape, with seeds and seeds penetrating into the shape of beads. Ginseng contains several kinds of alkaloids and flavonoids, and its main effect is effective for anti-inflammatory, antibacterial, bactericidal, and analgesic effects, and thus is useful as a drug for the treatment and prevention of gynecological diseases such as vaginitis and cold.

The ginseng extract is obtained by extracting and concentrating the ginseng through a conventional natural product extraction method, can be used as a concentrated liquid, or can be used as an extract powder obtained by powder drying the concentrate. The present invention does not particularly limit the properties of the alpine extract, and the place of origin does not distinguish between the same pharmacological action. In consideration of process convenience, it may be preferable to spray the concentrated acid extract of the concentrated liquid onto the label 100 by spraying.

The sanitary napkin with Ginseng extract further coated on the surface of the label 100 may enhance the deodorizing effect on menstrual blood or vaginal secretions due to the inherent aroma of natural products along with the pharmacological efficacy of Ginseng.

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

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

Figure 5 is a photograph comparing the menstrual blood absorption state of the sanitary napkin (A) and the conventional sanitary napkin products (B) using a commercially available pulp absorbent according to an embodiment of the present invention. In the photograph of FIG. 5, 10 mL of blood was compared to absorb the same amount at the same position in each of the sanitary napkin (A) and the conventional sanitary napkin product (B) of the present invention instead of menstrual blood.

Referring to FIG. 5, the sanitary napkin A of the present invention has blood absorbed evenly on the front surface of the absorber 200, and no blood leakage to the surface of the label 100 has been confirmed, even when a constant external pressure is applied. No leak was observed. On the contrary, the conventional sanitary napkin product (B) has absorbed blood intensively at the local area of the absorber 200, and blood leakage to the surface of the label 100 has been confirmed, and when a constant external pressure is applied, the degree of blood leakage is excessive. It could be observed.

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

Figure 6 is a photograph comparing the state before and after absorbing water for the 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 photo on the left shows the weight of the manufactured sanitary napkin with an electronic balance. The photo on the right shows the weight of an electronic balance with 70 mL of water absorbed. It can be seen that the sanitary napkin according to the embodiment of the present invention has a very good absorbency, but shows an absorbency of about 13 times the weight of the absorbent. In addition, even when absorbing a large amount of water, it can be confirmed again that the entire area of the absorbent member is uniformly absorbed.

As described above, the sanitary napkin 10 according to the present invention removes harmful components from the source and selects natural materials to provide various beneficial effects on the skin of women according to the use of the sanitary napkin. It is possible to mass-produce sanitary napkins that are safer and help women's health, and their industrial value is very valuable. In addition, the natural absorbent member to be used is distributed throughout the world, is readily available to anyone, and is a very inexpensive raw material compared to chemical absorbents and pulp. It is possible to reduce the consumer price of sanitary napkins through mass production, which is of great social and industrial use value to provide safe sanitary napkins to economically socially disadvantaged and young girls at lower prices.

In addition, the adsorbent using a small amount of added coffee grounds has an industrial value of recycling the discarded coffee waste to reduce the disposal costs and social public costs generated during disposal.

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

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

Claims (14)

A biocompatible absorbent member comprising a natural absorbent comprising diatomaceous earth powder and algae powder. The method of claim 1,
Biocompatible absorbent member further comprising coffee beans powder. The method of claim 1,
The algae powder is a biocompatible absorbent member comprising at least one selected from the group consisting of algae, seaweed or freshwater algae. The method of claim 3, wherein
The seaweed is one or more species selected from the group consisting of seaweed, kelp, mabanban, numbed blue, thorny blue, unidentified blue seaweed, laver, wood starfish and independence starfish,
Said seaweed is at least one member selected from the group consisting of turtle horse, halpi and horse halpi the biocompatible absorbent member. The method of claim 1,
The average particle diameter of the diatomaceous earth powder is in the range of 10 μm to 80 μm,
The biocompatible absorbent member having an average particle diameter of the algal powder is in the range of 0.05 mm to 5 mm. The method of claim 2,
The average particle diameter of the coffee beans powder is in the range of 0.1 mm to 5 mm biocompatible absorbent member. The method of claim 1,
Based on 1 part by weight of the diatomaceous earth powder,
A biocompatible absorbent member containing the algae powder in an amount ratio of 5 to 20 parts by weight. The method of claim 2,
Based on 1 part by weight of the diatomaceous earth powder,
A biocompatible absorbent member comprising the algae powder in an amount ratio of 5 to 20 parts by weight and 1 to 10 parts by weight of coffee beans powder. An absorbent absorbing physiological blood and comprising an absorbent cotton and the biocompatible absorbent member according to any one of claims 1 to 10;
A label stacked on top of the absorber; And
Sanitary napkin including a waterproof layer to prevent menstrual blood from leaking to the outside from the absorber. The method of claim 9,
Sanitary napkin coated with red ginseng extract on the surface of the label. 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 comprises polylactic acid (PLA), poly (butylene succinate) (PBS), poly (butylene succinate-adipate) copolymer (PBSA) and poly (butylene adipate-terephthalate) copolymer ( PBAT), polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB). The method of claim 9,
The waterproof layer is a sanitary napkin in which fine holes are formed to allow air to pass through. The method of claim 13,
The waterproofing layer is polylactic acid (PLA), poly (butylene succinate) (PBS), poly (butylene succinate-adipate) copolymer (PBSA) and poly (butylene adipate-terephthalate) copolymer (PBAT) ), Polycaprolactone (PCL), polyglycolic acid (PGA), and polyhydroxybutyric acid (PHB), a sanitary napkin in which at least one biodegradable resin is processed into a film.

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