KR20190044985A - Sanitary napkin having an absorbent filter body - Google Patents

Abstract

The present invention relates to a sanitary pad having an absorbent filter body and, more specifically, to a sanitary pad having an absorbent filter body, wherein the absorbent filter body is formed to be seated on the rear side of the sanitary pad with an absorbing layer for absorbing menstrual blood, the absorbent filter body is formed in a length sufficient to be fitted into a crack between buttocks of a wearer, and cellulose fibers extracted from coconut shells are sprayed onto the absorbent layer, such that the sanitary pad having an absorbent filter body can absorb and remove odors of the menstrual blood and has UV protection properties. To this end, the sanitary pad includes the absorbent filter body which is formed at the rear side of the same and has a length sufficient to be fitted into a crack between buttocks of a wearer, wherein an absorbing layer is formed to absorb menstrual blood in the sanitary pad, and cellulose fibers prepared by polymerizing monomers prepared by fermenting coconut shells and extracting the monomers by electrospining are sprayed onto the absorbing layer for forming the absorbent filter body.

Description

[0001] The present invention relates to sanitary napkins having an absorbent filter body,

The present invention relates to a sanitary napkin having an absorbent filter body, and more particularly, to an absorbent sanitary napkin having an absorbent filter body having a length that can be sandwiched between the buttocks of a wearer on the back of a sanitary napkin having an absorbent layer for absorbing menstrual blood The present invention relates to a sanitary napkin having an absorbent filter body having a function of ultraviolet ray blocking as well as being light and absorbing the smell of menstrual blood by producing cellulose fibers extracted with a coconut shell on the absorbent layer.

A sanitary napkin for women is a type of pad that prevents menstrual blood from leaking during menstruation and has a structure that can absorb menstrual blood even during normal use or during exercise or sleep.

The thinner the sanitary napkin is, the better the wearing comfort is, and the wearability of the sanitary napkin is not clearly visible, so that the quality of the sanitary napkin is improved in the direction of improving the absorbency.

1, the conventional sanitary napkin includes a rectangular pad 10 and a bonding portion 11 for fixing the pad 10 and attaching the sanitary napkin to the panty, (12).

In order to wear the sanitary napkin, a sanitary napkin is attached to a predetermined portion of the sanitary napkin so that the pad 10 faces the upper surface of the sanitary napkin, and then the sanitary napkin is put on.

The pad 10 has a plurality of absorbent layers to absorb menstrual blood.

On the other hand, although the sanitary napkin having the shape as shown in Fig. 1 (a) is the most general one, since the outer covering 12 is made of a non-woven material, it is not only vulnerable to waterproofing but also can not catch the menstrual blood flowing in the crotch region of the buttocks, There was a problem of leaking to the outside.

In addition, there is a problem that the sanitary napkin can not be stably worn by being pushed by both thighs when worn.

Meanwhile, the disposable sanitary napkin is basically composed of a cover, a cotton, a waterproof film made of an absorbent body made of a polymer absorbing material, and a polyethylene film, and is attached to the underwear through a double-sided tape.

Polymeric absorber plays a role of preventing menstrual blood from leaking, and usually absorbs menstrual blood when it is in powder form, which is a gel-like substance and has strong absorption power.

However, the use of the carcinogenic substance, formaldehyde (a substance causing the sickle cell syndrome), which is produced during the production of the polymer absorber, which is mainly used for strong absorption, causes extreme pain of the itching, dermatitis of the vaginal area, odor and various inflammatory diseases , And the difficulties of daily life resulting from it.

The cause of acne and cold sores in the menstrual period is due to the effect of this substance, and since the original shape is provided in the form of powder, this fine powder penetrates into the pulp area and enters the endometrium of the uterus, causing uterine dryness, While it is moist, it causes the inflammation inside the uterus by lowering the normal function of catching harmful germs, which is a cause of female diseases such as uterine dryness, endometriosis and uterine myoma.

In addition, the secretion sucked in by the polymer absorber is not ventilated by the waterproof membrane made of polyethylene film, causing unpleasant odor and vaginal and dermatitis in the vicinity thereof, resulting in severe itching and suffering. As a result, So as to appeal the inconvenience.

In the meantime, a sanitary napkin to which far-infrared rays and anions are emitted and a natural mineral powder having a deodorizing function has been proposed. However, most of them are coated with natural mineral powder on a sanitary napkin and apply natural mineral powder to the sanitary napkin. Of the sanitary napkin is used because the amount of natural minerals is small, the effect of natural minerals is very small.

Further, in the conventional sanitary napkin, since the cover sheet forming the uppermost layer of the sanitary napkin is pressed against the sanitary napkin when the sanitary napkin is worn, the menstrual blood absorbed in the absorbent layer flows out to the cover sheet to reach the local area of the user. Therefore, the feeling of comfort is not good because of the dampness, and the local portion of the user may be damaged.

On the other hand, a sanitary napkin using 100% pure cotton as the absorbent layer has been developed, and most of the deodorant is post-treated on the surface of the fiber yarn of the cotton cloth.

In this case, the deodorizing functional fiber using the pure cotton is advantageous in that it can be easily applied to the surface modified fiber by post-treating the selected deodorant on the surface of the fiber yarn, but the durability and the durability And the commercial utility is relatively low.

In other words, a deodorizing functional modified polyolefin is synthesized by covalently bonding a polyolefin, a carboxylic acid and a cyclodextrin (CD) to the surface of the absorber, and then the modified polyolefin is mixed with a polyolefin Deodorizing function polyolefin compound is made into a molded article according to use purpose.

On the other hand, there are two types of commonly used feminine hygiene tampons, one of which is a finger tampon, which is an absorbent structure designed to be inserted directly into the body cavity, such as a woman's vagina, a tampon designed to be inserted with the aid of an applicator, and in the case of the applicator, a cardboard or a polymer resin.

Referring to Fig. 1 (b), in one example, the tampon has an absorber 20, and comprises an outer tube 21, an inner tube 22, and a removing strap 23.

If the tampon is dried for a long period of time by wearing such a highly absorbent tampon, or if the vaginal wall is scratched, there is a risk of causing toxic shock syndrome, and the warm tampon fading from the blood will provide the base of vaginal bacterial production.

In recent years, the use of tampons with excellent fit and stability has been increasing, and the shape and material of the absorber that absorbs menstrual blood are becoming very important factors.

However, such a tampon is still inserted into the vagina of the wearer, and there is always a problem with toxic shock syndrome.

Accordingly, there is a need for a sanitary napkin having an absorbent filter body that is manufactured and configured so as to eliminate the anxiety of the occurrence of a toxic shock syndrome while fully performing the role of a tampon.

Korean Registered Utility Model No. 20-0484074 (published on July 21, 2017)

Disclosure of the Invention The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an absorbent filter comprising an absorbent filter body for wrapping a hip bone of a wearer and having an absorbent filter body configured to be stably worn when wearing the sanitary napkin, And to provide a sanitary napkin.

Another object of the present invention is to provide a sanitary napkin having an absorbent filter body which is eco-friendly and has soft touch of the product itself and has an ultraviolet shielding effect by forming a layer by spraying cellulose fibers extracted from a coconut shell with an absorbent layer absorbing menstrual blood .

In order to achieve the above object, a sanitary napkin with an absorbent filter body according to the present invention comprises an absorbent filter body having a length that can be sandwiched between the buttocks of a wearer at the back of the sanitary napkin.

At this time, an absorbent layer for absorbing menstrual blood of the sanitary napkin and cellulose obtained by polymerizing the monomers produced by fermenting the coconut shell in the absorbent layer constituting the absorbent filter body are sprayed by electrospinning .

Further, the absorbing filter element is configured in a circular bar shape so as to be seated in the back of the sanitary napkin.

On the other hand, a modified polyolefin having a deodorizing function is synthesized by grafting a polyolefin, a cyclodextrin (CD) and a carboxylic acid with a covalent bond, and then a modified polyolefin having a deodorizing function is mixed with a polyolefin to be used in a product to which the modified polyolefin is applied. Lt; / RTI >

The carboxylic acid contains a carbon atom of C5 to C500 scale and the mixing ratio of the carboxylic acid with the polyolefin is not more than 5% by weight,

The cyclodextrin has a hollow inner diameter of 5 to 10 angstroms and an outer diameter of 14 to 17 angstroms. The mixing ratio with the polyolefin is not more than 10%

The modified polyolefin has a melt viscosity of 0.7 to 800 g / 10 min. The polyolefin used in the product to be used has a melt viscosity in the range of 0.5 to 1,500 g / 10 min, and the mixing ratio thereof is 47% or less by weight.

As described above, the sanitary napkin with the absorbent filter body according to the present invention includes the absorbent filter body that encloses the hip bone of the wearer, so that the sanitary napkin can be stably worn when the sanitary napkin is worn, and the leakage of menstrual blood can be prevented.

In addition, since the absorbent layer for absorbing menses is formed by spraying cellulose fibers extracted from the coconut shell, it is eco-friendly, and the skin of the product itself is soft and has an ultraviolet shielding effect.

1 (a) and 1 (b) are schematic views showing a sanitary napkin and a tampon according to the prior art.
2 to 4 are views showing a sanitary napkin having an absorbent filter body according to the present invention.
FIG. 5 is a schematic view showing a process mechanism of a cellulose electrospinning method applied to a sanitary napkin having an absorbent filter body according to the present invention.
FIG. 6 is a schematic illustration showing Tayor Cone formation and Jet according to FIG. 5; FIG.
FIG. 7 is a view showing a state in which the jet of the electrospinning radiation according to FIG. 5 is radiated into multiple strands.
8 is a schematic view showing electrospinning of the polymer solution of the nozzle according to FIG.
FIG. 9 is a schematic view showing the principle of nanofiber formation according to FIG.
Figure 10 is a schematic illustration showing various porous materials according to Figure 5;

Hereinafter, preferred embodiments of a sanitary napkin having an absorbent filter body according to the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, it is assumed that the front portion indicates the portion on the negative side of the wearer when the sanitary napkin is worn, or the direction of the wearer's side, and the rear side indicates the portion opposite thereto or the direction thereof.

The inner side indicates the body part or the direction of the wearer, and the outer side indicates the opposite part or the direction.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

As shown in the drawing, the sanitary napkin 100 provided with the absorbent filter body according to the present invention includes an absorbent filter body 200 having a length that can be sandwiched between the buttocks of the wearer when worn on the back of the sanitary napkin 100 .

At this time, the absorption filter element 200 has a shape similar to that of a typical tampon, specifically a circular bar shape, and is configured to be seated in the inner rear of the sanitary napkin 100.

To this end, the sanitary napkin 100 is not shown to allow the user to stably seat the absorbent filter element 200, but may form a groove portion at a position where the absorbent filter element 200 is seated.

Needless to say, the absorbent filter member 200 can be easily detachably attached to the sanitary napkin 100 using an adhesive or the like, if necessary.

According to this configuration, the wearer naturally inserts the absorbent filter element 200 between the buttocks of the sanitary napkin when the sanitary napkin is worn, thereby preventing the menstrual blood from leaking or flowing at the time of walking or during exercise. Which makes it difficult to fix the sanitary napkin due to friction.

The absorbent layer 100a for absorbing menstrual blood and the absorbent layer 210 constituting the absorbent filter body 200 may be made of a material of a pure surface, (100a) has a multilayer structure.

Some layers of the multi-layered absorbent layer 100a and the absorbent layer 210 of the absorbent filter 200 are prepared by polymerizing the monomers produced through the fermentation process of the coconut shell and spraying the cellulose fibers extracted and prepared by electrospinning Layer.

2 to 4, an embodiment of the sanitary napkin 100 provided with the absorbent filter 200 according to the present invention will be described below.

The sanitary napkin 100 provided with the absorbent filter element 200 according to the present invention includes a tampon-shaped absorption filter element 100a having a multilayered absorbent layer 100a and having a length capable of wrapping around the buttocks of the wearer, (200).

Specifically, the multi-layered absorbent layer 100a is provided with a bamboo charcoat anion chip for removing odor and promoting blood circulation and has a layer 110 in contact with the wearer's body, and is disposed outside the bamboo char anion chip layer 110 And has a primary soft cover layer 120 for sensitive skin protection.

The second soft cover layer 130 covers the first soft cover layer 120 and has a skin surface facing the outside.

Subsequently, the outer layer of the secondary soft cover layer 130 has a layer 140 on which cellulose fibers extracted with a coconut shell are sprayed.

A pulp material absorber 150 is provided on the outer side of the cellulose layer 140 and an air absorbing pad 160 is provided on the outer side of the absorber 150 to prevent backflow.

A central absorbent layer 170 for preventing reverse flow again, and an environmentally friendly finish layer 180 for blocking moisture and ventilating air.

Next, the outer cloth 190 using a nonwoven fabric is provided outside the environmentally friendly finish layer 180.

The sanitary napkin 100 having the absorbent filter body 200 according to the present invention having the above-described structure has the layer formed by spraying the cellulose fibers extracted from the coconut shell in the construction of the absorbent layer 100a, Is soft and has a UV blocking effect.

On the other hand, the cellulose fibers to be applied to the sanitary napkin 100 provided with the absorption filter body 200 of the present invention are manufactured by electrospinning with nanofibers having a diameter of 1 μm (1,000 nm) or less.

Specifically, the electrospinning process is a process for producing a nanofiber nonwoven fabric by discharging a polymer melt or polymer solution having a millimeter diameter through a spinneret at a high voltage.

Referring to FIGS. 5 to 10, the electrospinning process can be roughly divided into four regions: a base, a jet, a spray, and a collector.

The first nozzle region is the portion where one jet is formed from the polymer solution or melt. Before the voltage is applied, the polymer solution is suspended in the form of a spherical droplet due to the surface tension at the end of the nozzle. Charge is introduced to the surface of the droplet while the voltage is applied, and the droplet is sprayed from the apex of the droplet.

The hemispherical surface of the solution suspended at the end of the capillary is stretched into a conical shape known as a Taylor cone and the jet of charged polymer solution is released at the end of the Taylor cone as the repulsive electrostatic force overcomes the surface tension at some critical electric field strength (Vc) .

As the axial velocity of the Taylor cone accelerates, a tapered conical jet is formed. The second area is the jet area. In this area, the jet decreases in diameter and increases in length. The jet is driven by the electrical potential difference supplied between the polymer solution or melt and the current collector.

The jet area is the area that occurs because the electrical charge of the electrical charge brought about by the tapered and elongated jet is greater than the adhesive force within the jet.

In a low electric field, a jet is formed and uniformly tapered to fly from the end of the capillary to the home plate.

However, in high electric fields, the jet will soon become unstable after flying a short distance. The unstable region of the jet shows an inverted cone shape where the initial one jet is split so that numerous jets are formed.

One jet is divided into many jets depending on the diameter and charge per unit length.

Finally, the current collector area is a region where many microfine fibers are seated on the take-up roller. A number of microfibers are gathered in a certain direction and solidify into a web state. When a volatile solvent is used, ultrafine fibers are collected on the rollers by evaporation of the solvent upon spraying, but when the nonvolatile solvent is used, the fibers are washed with water or an appropriate solvent and dried.

By such an electrospinning method, very thin cellulose fibers can be produced.

On the other hand, the cellulose fibers produced by the electrospinning method have a very small fiber diameter, so that they provide soft touch like baby skin and have high specific surface area and high porosity relative to weight.

The sanitary napkin 100 provided with the absorbent filter body according to the present invention is a sanitary napkin 100 provided with the absorbent layer 100a and the absorbent layer 210 constituting the absorbent filter element 200, And the cellulose fibers are sprayed.

Therefore, conventional chlorine bleaching agent is not used at all in the filter material itself, and cellulose is extracted in an eco-friendly coconut shell extracted from the forest. It is dried at the time of use of the wearer, is easy to absorb and remove odor, It has delicate and light effect.

In addition, the coconut shell has a function of ultraviolet blocking effect.

In addition, natural raw materials obtained from environmentally friendly cultivation are harmless to human body.

On the other hand, the absorbent filter element 200 of the sanitary napkin 100 provided with the absorbent filter body according to the present invention preferably has a length of 25 to 28 cm.

When the length is less than 25 cm, the wearer's hip bone can not be completely wrapped, resulting in a menstrual discharge. If the length exceeds 28 cm, the wearer's hip bone may escape from the wearer's wearer's discomfort.

On the other hand, the sanitary napkin 100 provided with the absorbent filter body according to the present invention is formed by extruding a polymer produced by polymerizing a monomer produced through a fermentation process by using a coconut shell on the absorbent layers 100a and 210 to absorb menstrual blood Since the fiber, cellulose, is injected into the high-temperature-fired natural material surface absorbent layer, it is formed in the form of white powder (granules) in the raw material constituting the absorbent layer.

Such granular form has a porous structure, and the odor component is physically adsorbed and rapidly adsorbed and dried, so that odor and discomfort due to moisture can be completely removed from a portion of the wearer contacting the human body.

In the sanitary napkin 100 provided with the absorbent filter body according to the present invention, a modified polyolefin having a deodorizing function is synthesized by grafting a polyolefin, a cyclodextrin (CD) and a carboxylic acid with a covalent bond to the absorbent layer, Can be used as a polyolefin compound having a deodorizing function by mixing with a polyolefin to be used in a product to be applied.

At this time, the hydroxyl group of the cyclodextrin (CD) is reacted with the anhydride functional group of the carboxylic acid which is mixed with the polyolefin to be covalently bonded to the polyolefin, and the modified polyolefin is reacted with the grafted cyclodextrin (CD) It has the function of absorbing and neutralizing odor generating material due to acid.

Cellulose, which is a fiber extracted with a coconut husk, is sprayed onto the absorbent layers 100a and 210 by high-temperature firing together with such a polyolefin compound by an electrospinning method.

At this time, the carboxylic acid contains carbon atoms of C5 to C500 scale, and it is mixed with polyolefin to make a stable compound. The mixing ratio with polyolefin is not to exceed 5% by weight.

Cyclodextrin (CD) grafted through it absorbs the odor generating material by the hydrophilic property of the hollow inside. It has the hollow inner diameter of 5 ~ 10 Å and the outer diameter of 14 ~ 17 Å, Mixing ratio with polyolefin is not more than 10%. The melt viscosity of the modified polyolefin is 0.7 to 800 g / 10 min. The polyolefin used in the product to be used has a melt viscosity in the range of 0.5 to 1,500 g / 10 min, and the mixing ratio thereof is preferably 47% or less by weight.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is not.

100: sanitary napkin
200: absorption filter element
100a: absorbing layer
210: Absorbent layer

Claims (3)

And an absorbent filter body (200) having a length that can be fitted between the buttocks of the wearer at the rear of the sanitary napkin (100);
An absorption layer 100a for absorbing menstrual blood of the sanitary napkin 100 and a monomer produced by fermenting the coconut shell on the absorption layer 210 constituting the absorption filter element 200 are polymerized by electrospinning Characterized in that the cellulose fibers obtained by the extraction are injected into the sanitary napkin.
The method according to claim 1,
The absorbing filter element 200 is formed of a metal,
Wherein the sanitary napkin has a circular bar shape and is seated in the rear of the sanitary napkin (100).
The method according to claim 1,
A modified polyolefin having a deodorizing function is synthesized by grafting a polyolefin, a cyclodextrin (CD) and a carboxylic acid with a covalent bond, and then a polyolefin having a deodorizing function is mixed with a polyolefin to be used in a product to which the modified polyolefin is to be applied. However,
The carboxylic acid contains a carbon atom of C5 to C500 scale and the mixing ratio of the carboxylic acid with the polyolefin is not more than 5% by weight,
The cyclodextrin has a hollow inner diameter of 5 to 10 angstroms and an outer diameter of 14 to 17 angstroms. The mixing ratio with the polyolefin is not more than 10%
Characterized in that the modified polyolefin has a melt viscosity of 0.7 to 800 g / 10 min and a melt viscosity of 0.5 to 1,500 g / 10 min, and a mixing ratio of not more than 47% A sanitary napkin having a filter body.

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