KR20110034190A - Oxygen generating diaper and sanitary napkin with sterilizing function, and oxygen generating composition thereof - Google Patents

Abstract

PURPOSE: A diaper and a sanitary napkin generating oxygen and an oxygen generating composition thereof are provided to prevent lack of ventilation and mold generation by generating oxygen. CONSTITUTION: A diaper and a sanitary napkin generating oxygen comprises: non-woven fabric(1); an absorber(2) installed inside the non-woven fabric; and an oxygenator layer(3) including oxygenator. The oxygenator composition is prepared by mixing solid acid and one or more than two kinds of oxygenators selected from a group consisting of calcium peroxide, magnesium peroxide, and sodium perborate.

Description

OXYGEN GENERATING DIAPER AND SANITARY NAPKIN WITH STERILIZING FUNCTION, AND OXYGEN GENERATING COMPOSITION THEREOF}

The present invention relates to a diaper and sanitary napkin having an oxygen generating function, and more particularly, oxygen is added to the skin in contact with the diaper and the sanitary napkin by adding an oxygen generating agent that generates oxygen to the diaper and the sanitary napkin. The invention relates to a functional diaper and sanitary napkin that can be supplied. When using diaper and sanitary napkin with oxygen generator, it can react with urine and menstrual blood discharged from the human body to generate oxygen to improve breathability and improve skin health such as skin sores, inflammation and prevention of odor. have. At the same time, the cleanliness of the skin can be improved due to the antibacterial and disinfecting effect due to the sterilization effect of hydrogen peroxide generated during the oxygen generation process.

Diapers are hygiene products that absorb and store secretions, such as urine and dung, which are discharged by newborns and are discarded after discharge. Disposable diapers, which are currently conveniently used, use materials such as nonwoven fabrics, pulp, cellulose and absorbent polymers as materials to absorb moisture and protect the absorbed material from leaking to the outside.

In addition, sanitary napkins are hygiene products that absorb and store discharges such as menstrual blood discharged during menstruation and are disposed of after discharge. Therefore, as a material for absorbing moisture or menstrual blood in a disposable sanitary napkin and protecting the absorbed material from leaking to the outside, materials such as nonwoven fabric, pulp or cellulose, and an absorbent polymer are used like diapers.

However, when using such a diaper and sanitary napkin, the area in contact with the skin increases the humidity in a sealed state and due to the increased humidity and body temperature, various microorganisms such as staphylococci and E. coli grow around the secretion. Growing microorganisms are metabolites that emit various odors and irritate the skin. This irritated skin can cause inflammation, fungus or soreness.

The present invention seeks to provide a new functional diaper and sanitary napkin in which oxygen generators are added to the diaper and sanitary napkin to improve these problems.

In addition, the oxygen generating agent applied to such diapers and sanitary napkins can be applied to various daily necessities such as disposable towels, napkin, tissues and the like to give an oxygen generating function to give a good effect of improving hygiene and cleanliness around the skin used.

The present invention has been made to solve the above problems by generating oxygen inside the diaper or sanitary napkin and at the same time by adding an oxygen generating agent having a bactericidal action to generate oxygen when urine, dung, menstrual blood, such as feces are discharged It is an object of the present invention to address the lack of breathability due to the use of diapers or sanitary napkins and inflammation, fungus or crushing on the skin.

Hereinafter, the problem solving means of the present invention will be described in more detail.

The functional diaper and sanitary napkin of the present invention, as shown in the cross-sectional view illustrated in FIG. 1, is characterized by being composed of a nonwoven fabric 1, an absorbent layer 2 and an oxygen generator layer 3 provided therein. At this time, the oxygen generator layer is a layer composed of a material capable of generating oxygen by reacting with the moisture contained in the secretion or excretion from the body.

In general, there are various kinds of substances that react with water to generate oxygen such as sodium peroxide, potassium peroxide, excess potassium oxide, perchlorate, calcium peroxide and sodium percarbonate.

For example, in the case of sodium peroxide,

In the case of potassium peroxide,

Oxygen is generated by the reaction of Formula 1 and Formula 2.

However, most of the oxygen-generating materials such as sodium peroxide, potassium peroxide, potassium peroxide, and perchlorate are strongly alkaline or hygroscopic, and when applied or mounted on diapers and sanitary napkins, deteriorates or decomposes during manufacture or storage (distribution period). It is very difficult to use as an oxygen generator for diapers and sanitary napkins.

In the present invention, one or two substances are selected from calcium peroxide, magnesium peroxide, sodium percarbonate, or sodium perborate (sodium perborate, sodium perborate) as an oxygen generating raw material. Used. However, these oxygen-generating substances become alkaline when they meet moisture and can cause severe irritation to the skin. In order to solve such an alkalizing problem, it can be neutralized by adding an acidic substance. However, most acidic materials cannot be used because they cause acid / base neutralization reactions during mixing or storage with oxygen-generating materials.

In order to solve this problem, in the present invention, a melting point is selected from a solid acid having a melting point of 60 ° C. or higher and used as a neutralizing agent or a buffering agent. Among the various types of solid acids in the literature, the solubility in water, hygroscopicity, compatibility with other components, stability during mixing, storage and price were tested in consideration of citric acid (glutric acid) and glutamic acid (glutamic acid) in the present invention. acid), ascorbic acid, sodium monophos phate, potassium monophosphate and tartaric acid were selected. The neutralizing agent or buffering agent is preferably used in the range of 0.1 g to 4 g with respect to 1 g of the oxygen generator, and more preferably in the range of 0.3 g to 2 g with respect to 1 g of the oxygen generator. It is good.

Oxygen generating components (calcium peroxide, magnesium peroxide, sodium percarbonate, sodium perborate) included in the oxygen generator are alkaline with the generation of oxygen in aqueous solution by the reactions shown in the following reaction formulas (Formula 3, Formula 4, Formula 5). However, the neutralization reaction (buffer agent) contained in the oxygen generator causes the neutralization reaction to occur almost simultaneously with the generation of oxygen, and the pH of the reaction solution is neutralized to around 6-8.

As described above, the oxygen generator mixed with the oxygen generating component and the neutralizing agent (buffer agent) generates oxygen when contacted with moisture, but the oxygen generation rate is too slow to be applied to diapers or sanitary napkins. In particular, such as calcium peroxide has a disadvantage that the rate is very slow, such as the generation of oxygen in the water for several days to several ten days. As a method for improving the rate of oxygen evolution, it is common to select and use a suitable catalyst. Manganese dioxide (MnO ₂ ), silver (Ag), potassium iodide (KI), catalase, yeast and the like are known as catalysts for promoting the decomposition of peroxides or percarbonates. However, among these catalysts, manganese dioxide, silver, and potassium iodide have a black color, a red color after a reaction, or a high price, which makes it difficult to commercialize them by applying them to diapers and sanitary napkins. Catalase or yeast may cause problems such as the unique odor or fairness (heating instability) of the enzyme during storage, and storage period. In the case of manganese dioxide, in particular, its use is very limited due to reasons such as environmental pollution and cancer causing concern by heavy metals. Thus known catalysts can not be used as a catalyst for the oxygen generator has developed a new catalyst in the present invention. In the present invention, the authors describe ferric formate, ferric citrate, ferric ammonium citrate, ferrous gluconate, Ferric chloride (FeCl2), ferric chloride (FeCl3), ferric oxalate, ferrous iodide, ferrous lactate, ferric nitrate ), Ferrous acetate, ferric glycophosphate, ferric orthophosphate, ferrous sulfate. Substances made of water-soluble iron compounds, such as ferric sulfate, were tested using an oxygen generator catalyst to obtain very good results. However, in the case of the strong acidic iron chloride, iron nitrate and iron sulfate among the iron compounds, the catalytic effect has been proved, but the neutralization reaction occurs when mixed with the peroxide, the iron component is oxidized to iron oxide (Fe2O3 or Fe3O4), and decomposition gas (hydrogen chloride) Etc.) partially occurred. Therefore, ferric formate, ferric citrate, ferric ammonium citrate, ferrous gluconate, and ferric oxalate are excluded. (Ferric oxalate), Ferrous iodide, Ferrous lactate, Ferrous acetate, Ferric glycophosphate, Ferric orthophosphate as catalyst It was selected and applied as a catalyst for oxygen generator. The catalysts newly applied in the present invention by the authors are preferably used in a ratio of 0.001 g to 0.05 g with respect to 1 g of the oxygen generator.

Oxygen generator prepared by the composition as described above is added to or mounted inside the diaper and sanitary napkin when used to generate oxygen (O ₂₎ by reacting with the moisture of the discharge, such as urine, dung, menstrual blood. The chemical reaction formula for generating oxygen is as follows.

When using calcium peroxide,

When using magnesium peroxide,

When using sodium percarbonate,

As described above, in the first step of the mechanism in which the oxygen generator generates oxygen, hydrogen peroxide is first generated as shown in Chemical Formula 6, and in the second step, hydrogen peroxide is decomposed into water and oxygen by a catalyst as shown in Chemical Formula 7.

At this time, hemoglobin contained in the menstrual blood may act as a decomposition reaction catalyst of hydrogen peroxide. Therefore, if the reaction of the second stage is rapidly progressed by the hemoglobin of menstrual blood, the concentration of hydrogen peroxide is rapidly decreased, and according to Le Chartelier's law, the reaction rate of the first stage, that is, the decomposition of the oxygen generator (hydrogen peroxide generation) may be increased. . Therefore, in view of the catalytic effect of menstrual blood, oxygen may be generated by the catalytic effect of menstrual blood secreted even when the catalyst for the iron compound is not added to the sanitary napkin oxygen generator. However, when the amount of menstrual blood is extremely small or anemia, or when the secretion other than menstrual blood is excessively discharged, it is safe to add an additional catalyst because the amount of the catalyst is not sufficient.

In addition, hydrogen peroxide generated in the first stage has a strong disinfection (sterilization) action as is well known, so strong disinfection or antibacterial effect under the influence of hydrogen peroxide generated from oxygen generator in diaper or sanitary napkin equipped with oxygen generator when discharged from the body Appears.

Oxygen generators prepared as described above are oxygen-generating components (peroxide and percarbonate in solid powder state) mixed with acidic neutralizing agent (buffer agent) in solid powder state and are further sensitive to moisture. Therefore, if the contact with the humid air during the mixing process or storage or temporarily increase the storage temperature, the function as an oxygen generator may be lost. To solve this, stabilizers were added to improve their fairness and storage stability. That is, such as alumina (Al2O3), silicate (SiO2), zeolite, molecular sieve, sodium sulfate, calcium sulfate, magnesium sulfate, calcium chloride, etc. Inorganic materials (sulphates, carbonates, oxides, or chlorides of alkali or alkaline earth metals) were added in the range of 0.01 to 0.5 g with respect to 1 g of oxygen generator to improve stability during the process or during storage.

In the present invention, the oxygen generating component of the oxygen generating agent used calcium peroxide, magnesium peroxide, sodium percarbonate, sodium perborate. Among them, sodium percarbonate and sodium perborate begin to generate oxygen rapidly when they come into contact with water, and the oxygen generation reaction is completed within about 1 hour. Calcium peroxide and magnesium peroxide, on the other hand, have a low concentration due to the reaction with water, but the oxygen generation time lasts for several hours. On the other hand, the time to wear a diaper or sanitary napkin is very different depending on the habit of the user and the environment of use. In general, the wearing time is generally 1 to 6 hours, even within 12 hours. In order to maximize the oxygen and bactericidal effects while wearing diapers or sanitary napkins, that is, the rate of oxygen production and slow rate of oxygen production (calcium peroxide or magnesium peroxide) Oxygen generator compositions were prepared as in Examples 12 to 14 by appropriately blending fast ingredients (sodium percarbonate or sodium perborate). As such, when the component having a slow rate of oxygen generation and the component having a high rate of speed are appropriately mixed, an oxygen generating agent having an oxygen generating effect for a desired time can be prepared.

In order to use the oxygen generating agent prepared with the composition described above in diapers and sanitary napkins, various methods are possible.

First, a method of mixing (absorbing or spraying) inside the diaper and the sanitary napkin together with the absorbent polymer by preparing a mixed powder of the absorbent polymer and the oxygen generator generally used in the diaper and the sanitary napkin (see Examples 17 to 18).

Second, the oxygen generator powder is prepared in granular form by treating the surface with a solvent such as alcohol, and the mixture mixed with the absorbent polymer in the granular form is mixed with the pulp for diaper and sanitary napkin and applied to the diaper or sanitary napkin. Method (see Example 19).

Third, there is a method of preparing the oxygen generator as tablets of a certain size and inserting the oxygen generator into diapers and sanitary napkins (see Example 20).

Fourth, by applying a pressure to the oxygen generating agent is molded into a pad shape of a predetermined size and mounted as shown in Figure 1 in the absorbent or moisture-proof cloth inside the diaper and sanitary napkin (see Example 21).

Fifth, a method of filling and packing powdered oxygen generating agent in a small size nonwoven bag and inserting it into a diaper and a sanitary napkin (see Example 22).

Diapers and sanitary napkins prepared or added with the oxygen generating agent according to the present invention generate oxygen when used to improve breathability, and enhance sterilizing power to improve skin health such as skin sores, inflammation, and odor prevention. have. At the same time, the cleanliness of the skin can be improved due to the antibacterial and disinfecting effect due to the sterilization effect of hydrogen peroxide generated during the oxygen generation process.

Hereinafter, a preferred embodiment of the present invention will be described in detail. However, the terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings and the configurations shown in the drawings and the embodiments described herein are only one of the most preferred embodiments of the present invention. It does not represent all the technical idea of this invention.

Therefore, it should be understood that there may be various equivalents and modifications that can replace them at the time of the present application.

The oxygen measurement used in the following <Example> used the oxygen concentration measuring instrument of Germany GmbH (ALMEMD). The pH of the solution was measured using a Hanna PH (HI98150) meter, and the pH of a wet surface or a narrow test tube was measured using a pH paper (manufactured by Toyo Roshi Co., Ltd., Japan).

<Example 1>

3.0 g of calcium peroxide, 7.1 g of potassium phosphate (potassium monophosphate), and 0.1 g of ferrous chloride (FeCl2) were ground in a mortar and mixed for about 10 minutes. As the neutralization reaction occurred during the mixing process, an acidic gas which was assumed to be hydrogen chloride gas was generated, and the iron component was observed to be oxidized to red iron oxide. In addition, even when ferric nitrate, ferrous sulfate, and ferric sulfate were used instead of ferric chloride (FeCl2) as the catalyst, such a neutralization reaction occurred and acidic gas was generated. In the case of mixing with the same iron compounds using sodium percarbonate, the neutralization reaction also occurred during the mixing. However, it was confirmed that oxygen was generated as a result of adding 10 ml of water to the remaining mixture (oxygen generator) even though some decomposition reaction occurred during the mixing process.

<Example 2>

3.0 g of calcium peroxide, 7.0 g of potassium phosphate (potassium monophosphate), and 0.1 g of ferric citrate were ground and mixed in a mortar for 10 minutes, but neutralization reaction did not occur during mixing as in <Example 1>. Did. The oxygen generator thus prepared was transferred to a 50 ml beaker, and 20 ml of urine was added to generate oxygen, and the pH was measured as 7.3.

In the reaction, using 2.5 g of magnesium peroxide instead of calcium peroxide, 7.1 g of potassium monophosphate and 0.1 g of ferric citrate mixed with an oxygen generator, the neutralization reaction does not occur during mixing. 20 ml of urine was added to generate oxygen, and the pH was measured to be 7.1.

<Example 3>

3.14 g of sodium percarbonate, 2.81 g of citric acid, and 0.06 g of ferric formate were ground and mixed in a mortar for about 10 minutes. The oxygen generator thus prepared was transferred to a 50 ml beaker, and 20 ml of urine was added to generate oxygen, and the pH was measured at 7.0.

In the reaction, instead of sodium percarbonate, 3.14 g of sodium perborate, 3.28 g of citric acid, and 0.06 g of ferric formate were ground and mixed in a mortar for about 10 minutes. 20 ml of urine was added to the prepared oxygen generator, and oxygen began to be generated. The pH was measured to be 7.2.

<Example 4>

3.3g citric acid instead of potassium phosphate (7.0g) in the oxygen generator composed of calcium peroxide (3.0g), potassium phosphate (7.0g) and ferric citrate (0.1g) of <Example 2>, Or five oxygen generators prepared using 7.49 g glutamic acid, 8.98 g ascorbic acid, 6.12 g sodium monophos phate, or 3.82 g tartaric acid. When 20 ml of urine was added, oxygen began to be generated, and the pH was measured in the range of 6.5 to 7.5.

<Example 5>

6.47 g of glutamic acid, or ascorbic acid, instead of citric acid (2.81 g) in an oxygen generator composed of sodium percarbonate (3.14 g), citric acid (2.81 g) and ferric formic acid (0.06 g) according to Example 3 20 ml of urine in 5 kinds of oxygen generators prepared by using 7.74 g of ascorbic acid, 5.28 g of sodium monophosphate, 7.1 g of potassium monophosphate, or 3.30 g of tartaric acid As a result, oxygen began to be generated, and the pH was measured in the range of 6.5 to 7.5.

<Example 6>

Ferric formate, ferric ammonium citrate, or ferrous gluconate (Ferrous) instead of 0.1 g of ferric citrate used as a catalyst in <Example 2> gluconate, or ferric oxalate, or ferrous iodide, or ferrous lactate, or ferrous acetate, or ferric glycophosphate Or ferrous ortho-phosphate (9 types of iron compounds) are selected as catalysts, and 0,1 g of this catalyst is added to 3.0 g of calcium peroxide and 7.0 g of potassium phosphate. , 20 ml of urine was added to 9 kinds of oxygen generators prepared by pulverization, and oxygen began to be generated, and the pH was measured in the range of 6.5 to 7.5.

<Example 7>

Ferric citrate or ferric citrate, ferrous gluconate, or ferric oxalate, or iodide 1 instead of 0.06 g of ferric formate used as a catalyst in <Example 3> Nine kinds of iron compounds, such as iron or ferrous lactate, ferrous acetate, ferric glycophosphate, or ferric glycol phosphate, were selected as catalysts, and 0.11 g of this catalyst was added to 3.14 g of sodium percarbonate. 20 ml of urine was added to 9 kinds of oxygen generators prepared by adding, mixing, and grinding citric acid to 2.81 g of citric acid, and oxygen began to be generated, and the pH was measured in the range of 6.5 to 7.5.

<Example 8>

Oxygen generator prepared by pulverizing and mixing 3.0 g of calcium peroxide and 7.0 g of potassium phosphate (potassium monophosphate) in a mortar for 10 minutes was transferred to a 50 ml beaker, and 20 ml of blood was added to start oxygen generation. , pH was measured at 7.0.

In the reaction, using 2.5 g of magnesium peroxide instead of calcium peroxide, oxygen generator mixed with 7.1 g of potassium phosphate (potassium monophosphate) was transferred to a 50 ml beaker, and 20 ml of blood was added to generate oxygen. , pH was measured at 7.0.

<Example 9>

Oxygen generator prepared by grinding and mixing 3.14 g of sodium percarbonate and 2.81 g of citric acid in a mortar and pestle for about 10 minutes was transferred to a 50 ml beaker, and 20 ml of blood was added to generate oxygen. , pH was measured at 7.0.

In the reaction, instead of sodium percarbonate, 3.14 g of sodium perborate and 3.28 g of citric acid were ground and mixed in a mortar for about 10 minutes. When 20 ml of blood was added to the oxygen generator thus prepared, oxygen began to be generated, and the pH was measured at 7.2.

<Example 10>

3.3 g of citric acid instead of potassium phosphate (7.0 g) in an oxygen generator composed of calcium peroxide (3.0 g), potassium phosphate (7.0 g) and ferric citrate (0.1 g) of <Example 8>, Or five oxygen generators prepared using 7.49 g glutamic acid, 8.98 g ascorbic acid, 6.12 g sodium monophos phate, or 3.82 g tartaric acid. When 20 ml of blood were added, oxygen began to be generated, and the pH was measured in the range of 6.5 to 7.5.

<Example 11>

In the oxygen generator composed of sodium percarbonate (3.14 g) and citric acid (2.81 g) of <Example 9>, instead of citric acid (2.81 g), 6.47 g of glutamic acid, or 7.74 g of ascorbic acid, or Oxygen is generated as a result of adding 20 ml of blood to each of five oxygen generators prepared using 5.28 g of sodium monophosphate, 5.95 g of potassium monophosphate, or 3.30 g of tartaric acid. PH was measured in the range of 6.5-7.5.

<Example 12>

1.0 g of calcium peroxide, 4.5 g of citric acid, 5.0 g of sodium percarbonate, and 0.07 g of ferric oxalate were ground and mixed in a mortar for about 10 minutes. When urine 20ml was added to the oxygen generator thus prepared, oxygen began to be generated and the pH was measured to be 7.5.

<Example 13>

1.0 g of calcium peroxide, 4.5 g of citric acid, 5.0 g of sodium percarbonate, and 0.07 g of ferric citrate were ground and mixed in a mortar for about 10 minutes. Oxygen was generated as a result of adding a mixture of 10 ml of blood and 10 ml of water to the prepared oxygen generating agent and the pH was measured to be 7.5.

<Example 14>

1.0 g of calcium peroxide, 4.5 g of citric acid, and 5.0 g of sodium percarbonate were ground in a mortar and mixed for 10 minutes. When 20 ml of blood was added to the oxygen generator thus prepared, oxygen began to be generated and the pH was measured to be 7.1.

<Example 15>

As a result of DSC scanning of the oxygen generators prepared in <Examples 2 to 14> from room temperature to 90 ° C, there was no sudden endothermic, exothermic, or decomposition reaction except for the generation of a small amount (0.6% or less) of water. In addition, these samples were stored for 24 hours while maintaining the TGA at 70 ℃, and also showed stability without any decomposition reaction except for the generation of traces (0.8% or less) of water.

<Example 16>

As in <Example 2>, 3.0 g of calcium peroxide, 7.0 g of potassium monophosphate, and 0.1 g of ferric citrate were ground in a mortar and mixed for about 5 minutes, followed by alumina (Al 2 O 3). After adding 1 g, the oxygen generator was further ground and mixed for 5 minutes to prepare an oxygen generator. When 20 ml of urine was added, oxygen was generated and the pH was measured to be 7.0.

As described above, in an oxygen generator made of 3.0 g of calcium peroxide, 7.0 g of potassium phosphate, 0.1 g of ferric citrate, and 0.6 g of alumina, instead of 0.6 g of alumina, silicate (SiO 2), or molecular sieve, or Urinate in 7 kinds of oxygen generators prepared by grinding and mixing by adding 0.6 g of sodium sulfate, calcium sulfate, magnesium sulfate, or calcium chloride. Oxygen began to be generated as a result of each addition, and the pH was measured in the range of 6.5 to 7.5.

As a result of DSC scanning of the seven kinds of oxygen generators prepared as described in <Example 15> at room temperature to 90 ° C, the moisture generation amount was 0.5% or less, and the result of TGA test was maintained for 24 hours at 70 ° C. It also showed stability without any decomposition reaction except for the generation of trace (0.6% or less) of water. As a result of the thermal analysis of oxygen generators with stabilizers such as alumina, the amount of decomposition (mainly moisture generation) was further reduced compared to the samples without the stabilizer.

<Example 17>

2 g of the oxygen generator (made of calcium peroxide, potassium phosphate and ferric citrate) prepared as in <Example 2> was mixed with 20 g of an absorbent polymer (SAP), placed in a 300 ml Erlenmeyer flask, and 200 ml of urine was added. As it began to absorb water, oxygen began to develop. pH was about 7 neutral. In this manner, the oxygen generator prepared in <Example 3> (manufactured by sodium percarbonate, citric acid and ferric formic acid), and the oxygen generator prepared in <Example 4> (manufactured by calcium peroxide, citric acid, ferric citrate) ), The oxygen generator produced in <Example 5> (made of sodium percarbonate, tartaric acid, ferric formic acid), the oxygen generator produced in <Example 6> (calcium peroxide, potassium phosphate, ferrous gluconate) Production), the oxygen generator prepared in <Example 7> (made of sodium percarbonate, citric acid, ferrous acetate), the oxygen generator prepared in <Example 12>, the oxygen generator prepared in <Example 13> 2g of each was mixed with 20g of absorbent polymer (SAP), put into a 300ml Erlenmeyer flask, and 200ml of urine was added. As a result, the absorbent polymer began to absorb water and oxygen was generated at the same time. All pHs were about 7 neutral.

A mixture of the oxygen generator (1 g) and the absorbent polymer 10 g prepared as described above is mixed well with a soft pulp (20 g), which is usually used for diapers or sanitary napkins. After 200 ml of urine was added, the absorbent polymer began to absorb urine in all samples, and oxygen began to be generated. As a result of measuring the pH of the surface of the nonwoven fabric where oxygen is generated by using a pH paper (indicator), all pHs were about 7 neutral.

<Example 18>

2 g of the oxygen generator (made of calcium peroxide and potassium phosphate) prepared as in <Example 8> was mixed with 20 g of an absorbent polymer (SAP), placed in a 300 ml Erlenmeyer flask, and 100 ml of blood was added. The absorbent polymer absorbed water. At the same time, oxygen began to be generated. pH was about 7 neutral. In this manner, the oxygen generator prepared in <Example 9> (made of sodium percarbonate and citric acid), the oxygen generator made of <Example 10> (made of calcium peroxide and citric acid), and <Example 11> Oxygen generators (prepared with sodium percarbonate and tartaric acid) and oxygen generators (prepared with calcium peroxide, sodium percarbonate and citric acid) prepared in <Example 14> were mixed with 20 g of absorbent polymer (SAP), respectively. In a 300ml Erlenmeyer flask, 100ml of blood was added. As a result, the absorbent polymer began to absorb blood and oxygen was generated at all samples. All pHs were about 7 neutral.

A mixture of the oxygen generator (1 g) and the absorbent polymer 10 g prepared as described above is mixed well with a soft pulp (20 g), which is usually used for diapers or sanitary napkins, and filled into a sanitary napkin-shaped nonwoven fabric commonly sold as shown in FIG. As a result of adding 200 ml of blood, oxygen was generated at the same time as the absorbent polymer began to absorb blood in all samples. As a result of measuring the pH of the surface of the nonwoven fabric where oxygen is generated by using a pH paper (indicator), all pHs were about 7 neutral.

<Example 19>

Oxygen generator prepared as in <Example 2> (made of calcium peroxide and potassium phosphate and ferric citrate), oxygen generator (made of <Example 3> made of sodium percarbonate, citric acid and ferric formic acid ), An oxygen generator prepared in <Example 4> (made of calcium peroxide, citric acid, ferric citrate), an oxygen generator made of <Example 5> (made of sodium percarbonate, glutamic acid, ferric formic acid), Oxygen generator prepared in <Example 6> (made of calcium peroxide, potassium phosphate, ferrous gluconate), oxygen generator made of <Example 7> (made of sodium percarbonate, citric acid, ferrous acetate), 100 g of each of the oxygen generators prepared in <Example 12> and 100 g of the oxygen generators prepared in <Example 13> were sprayed with 10 ml of alcohol, and then dried with stirring well at room temperature. Changed into granular form. While drying the granular oxygen generators, granular oxygen generators were prepared by adjusting the stirring speed while being careful not to clump the granules together and form a large mass. After drying for one day (24 hours) at room temperature and again for 1 hour in a 60 ℃ dryer, the particle size of the dried granular oxygen generator was prepared to an average particle size of about 800 microns. The granular oxygen generator (2 g) thus prepared was mixed with 20 g of absorbent polymer (SAP), placed in a 300 ml Erlenmeyer flask, and 200 ml of urine was added to generate oxygen. pH was about 7 neutral.

<Example 20>

0.3g each of the eight oxygen generator samples used in Example 19 was put into a tablet-shaped mold having a diameter of 9mm and a height of 3mm, and a tablet-shaped sample was prepared by applying a pressure of about 1 ton. . Ten prepared oxygen generator tablets were placed between the nonwoven fabrics used in diapers or sanitary napkins, and 30 ml of water was added to generate oxygen. A pH paper (indicator) was used to measure the pH of the surface of the nonwoven fabric where oxygen was generated.

<Example 21>

Fill the mold (steel, 20mm x 30mm x 10mm) with 2g each of 8 kinds of oxygen generators used in <Example 19>, and apply a pressure of 1 ton to form a rectangular (20mm x 30mm) 2mm thick, rectangular parallelepiped pad. Oxygen generator was prepared. Oxygen generator pad (2g) prepared in this way was mounted on the inside of the diaper (commercially available 2 or 3 position) of the market, and 50ml of urine was added thereon to generate oxygen. The pH measured using a pH paper (indicator) on the surface of the nonwoven fabric of the diaper showed about 7 neutrality in all samples. The pads were mounted inside a commercial sanitary napkin, and the results showed that the pH was about 7 neutral with oxygen generation.

<Example 22>

2 g of powdered or granular oxygen generators prepared as in <Example 17> and <Example 19>, respectively, were filled in a rectangular nonwoven fabric (material: polyethylene) pack (envelope, 20 mm x 30 mm) and sold on the market. It was mounted in a diaper (weight 30g) to be fitted (positioned in the 2 or 3 position of Figure 1). When 50 ml of water was sprayed on the diaper equipped with the oxygen generator pack, oxygen generation started, and the pH measured by using a pH paper (indicator) on the diaper surface was all about 7 neutral.

<Example 23>

Oxygen generation amount of the oxygen generating agents prepared in <Examples 2 to 14> was measured by the following method. In other words, fill the measuring cylinder with water and invert the inside of the tank (30 ℃) filled with the measuring cylinder filled with water upside down. The air tube of the oxygen generator (see FIG. 2) was connected to the bottom of the measuring cylinder (inverted) installed in the water tank (inlet) and fixed well. About 2 g of the oxygen generator sample prepared in the same manner as in <Examples 2 to 14> was put in an aluminum foil and folded (to fold the aluminum foil and the oxygen generator sample in a small size so as not to escape the sample). . 20 ml of water (20 ml of blood instead of water in Examples 8-11 and 14) was added to the oxygen generator, and the aluminum foil containing the oxygen generator sample was floated on the water (or blood) in the oxygen generator and the oxygen generator lid Carefully close At this time, close the lid tightly, taking care not to mix the oxygen generator sample with water (or blood) before closing the lid completely.

If the sample is mixed with water (or blood) by shaking the oxygen generator, the oxygen generated in the oxygen generator collects high oxygen concentration air from the oxygen generator through the tube to the measuring cylinder. Oxygen generator is mounted in the same tank equipped with a measuring cylinder to be the same temperature (30 ℃) of the bath temperature (see Figure 3). Since the generated oxygen is collected on the upper part of the measuring cylinder, the amount (volume) collected is measured and recorded according to time to measure the rate of oxygen generation, and the amount of oxygen generated (volume) after 24 hours is the total amount of oxygen generation (volume). Record it. The amount of oxygen generated per unit gram (g) is obtained by dividing the measured amount of oxygen generated by the number of samples of g.

Oxygen generation amount per gram of sample = Oxygen generation amount ÷ Sample weight (g number)

The oxygen generation amount for the oxygen generator samples measured in this manner is as follows.

<Example 24>

The mixed powder obtained by mixing the oxygen generating agent (1 g) prepared as in <Examples 2 to 7> and <Example 12> and <Example 13> with the absorbent polymer (10 g) and the diaper filler (soft pulp, 20 g) The mixture was mixed well in a mixer, and the mixed filler was mixed so that the oxygen generator and the absorbent polymer (SAP) were evenly dispersed in the pulp. 0.5 g of this mixed filler was placed in a test tube, and water (approximately 10 ml) was added thereto, and the inside of the test tube was photographed using a USB Microscope (manufactured by Horic. Japan). As the time passed from 10 minutes to 1 hour, more and more air (oxygen) bubbles were observed (see FIG. 4). Also, as time passed, the air bubbles slowed and the air bubbles stuck to the wall and slowly moved. This was because the absorbent polymer absorbed the water and the viscosity became high, thereby degrading the fluidity of the air (oxygen) droplets. In the same manner, when 0.5g of a mixture of pulp and an absorbent polymer without oxygen generating agent was placed in a test tube and water was taken, the inside of the air (oxygen) drop was not observed.

<Example 25>

The medium (LD) was prepared in a sterile Petri dish for microbial sterilization test, and the microbial culture Petri dish was prepared by spreading S. aureas. In Example 24, 0.5 g of an oxygen diaper mixed filler (a mixture of 1 g of oxygen generator, 10 g of absorbent polymer (SAP) and 20 g of pulp) was taken and placed in a beaker (100 ml), and 5 ml of an aqueous solution stirred with 20 ml of distilled water was added. It was added to a petri dish prepared in advance and stored in a 37 ℃ incubator. After 30 hours, the microorganism was not cultured in the contact area (white) with the oxygen generator solution flowing.

Take 0.5 g of the prepared oxygen diaper mixed filler (mixture of 1 g of oxygen generator, 10 g of absorbent polymer (SAP) and 20 g of pulp) prepared as above, place it on the microbial culture petri dish prepared as above, and place 10 ml of distilled water on the mixed filler. Slowly added. If you lightly press the spoon with the mixture filled with distilled water, some of the solution will overflow. After 32 hours of storage in a 37 ° C incubator, microbial cultivation was not observed in areas with mixed fillers and in contact with solution flow.

In the same manner as above, 0.5 g was taken from the diaper mixed filler without oxygen generator (a mixture of 10 g of absorbent polymer (SAP) and 20 g of pulp) and placed on the microbial culture Petri dish prepared as described above, and 10 ml of distilled water was slowly added to the mixed filler. . If you lightly press the mixture filled with distilled water with a spoon, a portion of the solution will overflow. The dish was stored for 32 hours in a 37 ° C. incubator and microorganisms were cultured on the entire surface of the dish.

1 is a cross-sectional view of the diaper and sanitary napkin with the oxygen generating layer of the present invention. If the absorber layer is used for 2 sites, 3 sites are oxygen generating layers, and if 2 sites are oxygen generating layers, 3 sites are absorbing layers.

<* Brief description of symbols used in the drawings *>

1: nonwoven fabric 2: absorbing layer or oxygen generating layer 3: oxygen generating layer or absorbing layer

Figure 2 is a photograph before and after opening the lid in the oxygen generator for measuring the amount of oxygen generation as in the case of <Example 23>

3 is an apparatus for measuring oxygen by connecting an air tube between an oxygen generator and a mass cylinder by mounting an oxygen generator as in the case of <Example 23>.

FIG. 4 is a photograph of oxygen droplets generated by an oxygen generator when water is added to a diaper filled sample equipped with an oxygen generator in a test tube as in <Example 24>.

Claims (11)

In diapers and sanitary napkins, Oxygen generating diaper and sanitary napkin, characterized in that it comprises a nonwoven fabric (1), an absorbent layer (2) provided therein and an oxygen generator layer (3) containing an oxygen generator (see FIG. 1). In the oxygen generator composition, At least one oxygen generator selected from the group consisting of calcium peroxide, magnesium peroxide, sodium percarbonate and sodium perborate, 0.1 g to 4 g of a solid acid is mixed with respect to 1 g of the oxygen generator. In the oxygen generator composition, At least one oxygen generator selected from the group consisting of calcium peroxide, magnesium peroxide, sodium percarbonate and sodium perborate, 0.1 g to 4 g of a solid acid with respect to 1 g of the oxygen generator, 0.001 g to 0.05 g of the catalyst is mixed, characterized in that the oxygen generator composition. According to claim 2 and 3, Solid acids are dissolved in water such as citric acid, glutamic acid, ascorbic acid, sodium phosphate, potassium monophosphate, tartaric acid, etc. Oxygen generator composition, characterized in that one or two or more selected from the group consisting of an acid of a solid state (℃) or more. The method of claim 3, wherein Catalysts include ferric formate, ferric citrate, ferric ammonium citrate, ferrous gluconate, ferric oxalate, and iodine Select from the group consisting of iron compounds such as ferrous iodide, ferrous lactate, ferrous acetate, ferric glycophosphate, and ferric orthophosphate Oxygen generator composition, characterized in that one or two or more. According to claim 2 and 3, Alumina (Al2O3), silicate (SiO2), molecular sieve, sodium sulfate, calcium sulfate, magnesium sulfate One or two or more selected from the group consisting of inorganic substances such as magnesium sulfate and calcium chloride (sulphates of alkali metals or alkaline earth metals, carbonates, oxides or chlorides) may be added to 1 g of oxygen generator. Oxygen generator composition, characterized in that used in the range of 0.1 to 3.0g. Oxygen generating effect (calcium peroxide or magnesium peroxide) with a slow rate of oxygen generation and high oxygen generating rate (sodium percarbonate or sodium perborate) are mixed as appropriate in the case of <Examples 12-14>, and the oxygen generating effect is improved. Method of making to last for the desired time. The oxygen generating composition of claim 2, 3 and 7 is prepared in powder form as in the case of <Examples 17 to 18> or in granular form as in the <Example 19> to be used in diapers and sanitary napkins. Oxygen generator diaper and sanitary napkin, characterized in that it is used in a diaper or sanitary napkin with pulp, cellulose or water absorbent (SAP) and the like mixed with the pulp, cellulose or water absorbent (SAP). Claims 2 and 3 and 7, wherein the oxygen generating composition is packaged and packaged in a non-woven bag in the form of powder or granules as in the case of <Example 22> and then mounted on a diaper and sanitary napkin to use as an oxygen generating agent Oxygen generator diaper and oxygen generating physiological zone. Oxygen generator, characterized in that the oxygen generator composition of claim 2, 3 and 7 as a tablet (tablet) as in the case of <Example 20> mounted in a diaper and sanitary napkin and used as an oxygen generator Diapers and oxygenated physiology. The oxygen generator composition of claim 2, 3 and 7 is prepared in the form of a rectangular parallelepiped pad by applying pressure to the mold as in the case of <Example 21> and mounted inside a diaper and sanitary napkin and used as an oxygen generator. Oxygen-generating diaper and oxygen-generating physiological zone, characterized in that.

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