KR20010112833A - Polyurethane foam and process for the preparation the same - Google Patents

Abstract

In the present invention, a polyether-based or polyester-based polyol is added to a stirring tank, 0.1 to 50% of jade is added to the polyol in a weight ratio, and stirred for a predetermined time, followed by milling several times with a disperser. The present invention provides a jade-containing polyurethane foam prepared by aging and foaming by filtering by a filter of mesh level and a method of manufacturing the same.

In addition, the present invention is to produce a polyurethane using a polyol by mixing a certain ratio of ocher to jade powder, so to provide a high-quality polyurethane foam in a state that evenly has the efficacy of jade and the efficacy of ocher.

Description

Polyurethane foam and process for preparing same

The present invention relates to a polyurethane foam and a method for producing the same, and more particularly, to a polyurethane foam containing jade and a method for producing the same, after adding a polyether or polyester-based polyol introduced into a stirring tank, 0.1 to 50% of jade in a weight ratio to the polyester polyol was added to the stirring tank and stirred for a predetermined time, and then milled several times with a disperser and filtered by a filter of about 80 mesh to foam and mature. The present invention relates to a jade-containing polyurethane foam and a method for producing the same.

Polyurethane is a generic term for a high molecular compound having a urethane bond -OCONH- in its molecule. As a rubber-like elastomer, it has recently been used in a range of applications such as urethane rubber, synthetic fibers, adhesives, paints, urethane foams, and automobile bumpers. It is being expanded and it is generally manufactured by addition polymerization of diol (1, 4- butanediol etc.) and isocyanate (Isocyanate).

Here, the addition polymerization refers to a reaction in which a unit composition formula and a structure are represented as a repeating unit compound to form a polymer, and the reaction proceeds without leaving molecules from the unit composition.

Such polyurethanes are used for rubber applications and urethane foams, and in the case of rubber applications, they are not included in the scope of the present invention, so the description thereof is omitted, and in the case of urethane foams, a small amount of triisocyanate is added to make thermosetting. In recent years, high-speed, energy-saving molding methods, such as RIM (Reaction Injection Molding), have been developed, and their use is expanding.

On the other hand, the polyurethane foam made by foaming the polyurethane produced by the above-mentioned manufacturing method is a resin produced by heating with a crosslinking reaction (crossing reaction), the foamed porous due to carbon dioxide (CO ₂ ) generated during the reaction progress Bar, ie, polyurethane foam (poly-urethanefoam) is a polyporous or sponge-type polyurethane resin, a polyether polyol which is a high molecular compound having an ether bond -O- in the molecule, or an ester bond -CO-O- in the molecule. A polyester polyol, which is a high molecular compound, is mixed with a bifunctional or polyfunctional isocyanate, a raw material such as a foam or a catalyst, and various additives, and the glycol component and the isocyanate component react with water to form a reticulated bond. The resulting gas (eg CO ₂ ) is used to make the foam.

At this time, if necessary, other foams or foam homogenizing agents may be added. There are various types of foams obtained in the form of soft, semi-rigid, and hard materials. Used as cushioning materials (mattresses, seats), fillers, filters for chairs, etc., the rigid foam is light and low in elasticity, and has excellent load-bearing capacity, heat insulation, and low temperature characteristics. It is widely used as a heat insulating material.

Meanwhile, the semi-rigid foam is used for interior materials such as automobiles or the like as an insulating material using shock absorbing force, and the polyurethane foam has a very close relationship with our real life.

However, the polyurethane foams are widely used according to the purpose of use, and various kinds of additives are added to meet the requirements. In addition, there is an economic problem that the production cost rises, and the elongation of the polyurethane foam is remarkably lowered by the addition of a large amount of additives, as well as a fatal problem that the physical properties are deteriorated. Problems have been pointed out.

Accordingly, the present invention has been made to solve the above problems, such as excellent poly-infrared radiation efficiency to decompose harmful substances, excellent thermal insulation, antibacterial, etc., as well as excellent foam control and deodorizing effect of jade poly-polyfoam It is an object of the present invention to provide a urethane foam.

In addition, the present invention, instead of the additives that are variously added to the polyurethane foam in the prior art by adding a jade powder in the form of fine particles in an appropriate weight ratio to undergo a mixing, foaming, aging, processing process, the polyurethane foam prepared from It is another object of the present invention to achieve improvement in physical properties.

In addition, the present invention is to provide a polyurethane foam having a good physical properties and elongation of good quality at a relatively low production price by restraining the increase in manufacturing production cost by adding a large amount of additives according to the characteristics as conventionally There is another purpose.

In addition, the present invention is not limited to polyester, polyether-based, it is another object to achieve the compatibility of the production to be produced by adopting a flexible, rigid and semi-hard polyurethane foam according to the intended use.

Preparation of the polyurethane foam of the present invention for achieving the above object is to put a polyether- or polyester-based polyol in a stirred mixing tank, and to obtain jade powder having a particulate shape of 0.1 to 50% by weight relative to the polyol A compounding step (S1) which is added to the stirring tank and stirred for 2 to 3 hours;

Isolates, foaming agents, surfactants, catalysts, metal catalysts, crosslinking agents, flame retardants, etc., alone or in combination, are prepared in the polyol formed by the blending process, and then the air is in an amount of 2000 to 2500 cc / min. A mixing step (S2) for mixing by mixing and adjusting the shape of the cell;

A foaming step (S3) in which the reactant discharged by the mixing step is foamed by carbon dioxide gas generated by the reaction of water and isocyanates; And

It characterized by consisting of a aging step (S4) to vertically cut the foam foamed in a flat plate shape of a predetermined thickness and width by the foaming step to a predetermined length and to aging until the reaction is completed and completely cured in the standby state for a certain time. .

1A and 1B are graphs showing far-infrared radiation efficiency of jade-containing polyurethane foam, which is the first embodiment of the present invention.

Figures 2a and 2b is a photograph showing the results of the initial and a certain time after the E. coli antibacterial test of the oxform sample.

Figure 2c and Figure 2d is a photograph showing the results of the initial and after a certain time of the Pseudomonas aeruginosa antibacterial test of the oxform sample.

Figure 3 is a graph showing the gas concentration curve over time by the test analysis of the Korea Far Infrared Ray Association which tested the deodorizing power against the foam in the state without the addition of oxfoam and additives.

Hereinafter, the present invention will be described in more detail.

Prior to describing the present invention, the performance and components of jade which have been discovered so far will be briefly described.

In today's rapidly evolving and changing society, a lot of mental and physical stress is overwhelmed by modern people due to the infinite competition for survival, and they are trying to find multiple ways to solve such stress and physical fatigue. Many studies and experiments on useful ores (鑛石) are still in progress variously.

In addition, as one of the effects of the results obtained through various studies, it has been found that useful rays such as small to large amounts of far infrared rays are emitted depending on the ore.

Since ancient times, jade is one of the ores that have been brought to this day as a rare treasure with mysterious effects as an ore that helps the body's metabolism to strengthen the body's metabolism just by being close to or carrying the body. Medical health effects on jade are described in detail in Dangboncho, Sintongboncho, and Boncho River, which are representative Chinese intentions written with the effects of action. It can be seen that it can be used as an ingredient of herbal medicines in the intentions such as (東 醫 寶 鑑).

In addition, jade has a structure of finely linked rings with irregular structures, and is harder than other minerals, and consists mainly of calcium, magnesium oxide, and silicate (quartz, silicate), and its color varies depending on the amount of iron contained. It is known to have a variety of colors such as yellow and pearl red, and it contains a large amount of trace elements that are beneficial to the human body, and it is known that the fine brightness of jade makes it warm in winter and emits a large amount of far-infrared rays with cool characteristics in summer. have.

And, as it turns out in modern medicine, finely powdered jade can save body energy and help blood circulation, stabilize nerves and blood pressure, reduce muscle growth, reduce swelling, digestive problems, and endocrine diseases. It is known to be effective in preventing and relieving stress, as well as helping to recover from fatigue, and prompting the body to quickly discharge wastes and harmful accumulations in the body.

On the other hand, as described above, far-infrared rays, which is one of the rays useful for the human body among the rays naturally emitted from jade or ore, refers to light having a wavelength of about 2.5 to 1000 μm among the wavelengths of light, and its heating performance is high in electromagnetic waves. It has excellent characteristics, and all materials emit small to large wavelengths of far infrared rays, but in particular, alumina (Al₂O₃), silica (SiO₂), zirconia (ZrO₂), iron oxide (Fe₂O₃), silicon carbide (SiC), mullite, Inorganic materials such as titanium oxide, calcium oxide, magnesium oxide, sodium oxide and potassium oxide have been found to emit a large amount of light in the far infrared region.

On the other hand, the far infrared rays are classified into visible light and invisible invisible light that can be distinguished from the sun's rays, and infrared light, which is a kind of double invisible light, is good for the human body, which is called near-infrared, mid-infrared and far-infrared. This far-infrared ray is a very long light with a wavelength between 2.5 and 1000 µm, and a wavelength between 5.6 and 15 µm is the far-infrared wavelength band closest to the human body.

Therefore, far-infrared rays (aka, live rays) are excellent in penetrating ability to living organisms, and when irradiated to the human body, the absorption of far-infrared rays facilitates blood vessel expansion, blood circulation and metabolism of subcutaneous fat layer, so that the body's mental and physical fatigue can be recovered quickly. It helps to prevent and treat various diseases, and of course, it quickly discharges various harmful wastes and heavy metals in the body, and has various effects such as drying, thawing, sterilization, warming and ripening, soft water, freshness maintenance, and purification, and ionization effect. There is also an effect such as odor removal by.

Therefore, a large amount of far-infrared rays is a mixture of artificial and artificial minerals and natural minerals artificially synthesized from natural jade, ore, etc., and pursued using these natural minerals and artificial mixtures In order to achieve the purpose and effect, it is actively applied to industrial, food processing, cooking supplies, heating supplies, medical and health appliances or auxiliary supplies, bedding, furniture, clothing, household appliances, sports equipment, and various personal goods. Therefore, the effect of far-infrared rays is properly utilized in combination with real life.

The above has been briefly described with regard to the efficacy of jade, the biggest feature of the present invention is to process the jade powder having the effect of far-infrared radiation, deodorization, antibacterial, etc. in the form of fine particulate powder, the jade powder polyester or poly It will be described in detail through the first embodiment of the present invention to be prepared by adding 0.1 to 50% by weight relative to the ether-based polyol.

In the present invention, the compounding step (S1) is a polyether-based or polyester-based polyol is added to the stirred mixing tank, and the jade powder having a particulate shape of 0.1 to 50% by weight relative to the polyol is added to the stirred tank to 2 to 3 After stirring for a time, milling using a three-roll disperser and filtering using a filter of about 80 mesh are performed.

At this time, the size of the jade powder is most suitable about 300 to 1000 mesh.

When the above filtering is completed, the polyol mixture in the filtered state is passed through a filter to be sealed in a tank for a certain period of time to prevent reaction with moisture present in the outside air, and then sealed to remove air remaining in the polyol mixture. Complete aging for 12 to 24 hours in the tank, then maintain the temperature of 20 to 25 ° C, the proper temperature to foam

The reason for aging in the state to maintain the sealed state is that the jade powder and the like employed in the present invention has a strong attraction force of water to block the reaction between the mixture and water.

And the mixing process (S2) is 25 to 75% of isocyanates, 1.5 to 6.0% of blowing agents, 0.5 to 2.0% of surfactants, 0.02 to 0.15% of a catalyst, and a metal catalyst to the polyol formed by the said mixing process (S1) by weight ratio, respectively. 0.1 to 0.5%, 0.5 to 2.0% of crosslinking agent, 2 to 20% of flame retardant, etc. alone or in combination and stored in a separate tank for injection into a tank in which a mixture of jade and polyol is mixed by the above mixing step and foaming Prepare for

When the preparation process for foaming is carried out as described above, the mixture of polyol and the like is stored by transferring the raw materials to a mixing-head at a predetermined ratio according to the mixing specification by a metering pump from the tank in which the raw materials are stored alone or in combination. It is discharged by being uniformly mixed with the mixture introduced into the mixer by a separate transfer device from the tank in the state.

At this time, the mixer is suitable for 4000 to 4400 rpm, the head pressure of the mixer is preferably maintained to 1.0 to 1.4 kgf / ㎠.

In this way, a mixture of jade-containing polyol and various raw materials and the like are mixed at a predetermined ratio according to the mixing specifications, but 2000 to 2500 cc / min of air is added to the mixer by using a separate air compressor. Adjust the shape of the cells formed in the cabin.

Here, it is necessary to properly adjust the amount of air, for example, if the amount of air supplied is a large amount of air is evenly distributed in the mixture such as polyols to form pores, which is characterized in that the cell becomes solid, If the amount of air is adjusted less, a small number of pores are formed in the mixture such as polyol, which makes the cell coarse and rough, so that the amount of air is adjusted in consideration of the characteristics of the consumer or the product. It is preferable.

According to the foaming step (S3) of the present invention, the mixture to be mixed by the above mixing step causes the self-heating by the carbon dioxide (CO ₂ ) generated from the reaction of water and isocyanates to cause foaming, The discharger is discharged to a foaming line which is a guide having a predetermined constant width and height formed on the front side of the mixer, and the discharged foam is continuously transferred by a conveying means such as a conveyor belt.

At this time, the carbon dioxide (CO ₂ ) is continuously foamed by the self-heating on the foaming line is subjected to a process in which the foam is continuously discharged in the form of a slab of the plate shape to the appropriate height and width.

And, by the foaming step (S3) is a maturing step of vertically cutting the foam foamed in the shape of a flat plate (slab) of a predetermined thickness and width to a predetermined length to mature until the reaction is terminated and completely cured in the standby state for a certain time ( S4).

In the above, the method for preparing a polyurethane foam by adding polyurethane of 0.1 to 50% by weight of polyol of a polyester or polyether-based polyol and foaming the polyurethane was described. Polyurethane foams can be prepared by combining ocher to form a mixture of polyols.

In general, loess is a deposit composed of 0.02 to 0.05 mm particles composed of various mineral particles, the composition of which is 60 to 65% of silica (SiO ₂ ), 10 to 13% of alumina (Al ₂ O ₃ ), and calcium oxide ( CaO) 8%, iron sulfide (FeSO ₄ ) 5-6%, magnesium (Mg) 2%, sodium (Na) 2%, potassium (K) 1.5%, etc. In addition, quartz, mica, feldspar, calcite It is known to be expressed in various colors such as yellow by oxidizing with iron and other components.

Such ocher has been identified as decomposability, absorption, transparency, vitality, as well as the emission of far infrared rays, and is being used as a beneficial product to the human body by using it, and many studies related to ocher are still underway.

Among them, in particular, the benefits of ocher include not only the removal of various odors, but also the antibacterial and antibacterial action of harmful bacteria, humidity control, and the above-mentioned far-infrared radiation.

The present invention is not only by the addition of jade as described above, but also to make a polyurethane foam with a mixture of ocher and jade to a certain ratio to produce a polyurethane foam to be adopted and used in various household goods, etc. It aims to promote metabolism such as decomposition, blood circulation, remove odor, antibacterial and humidity control.

In carrying out the second embodiment of the present invention, the materials and ratios of the various raw materials added to the mixture of polyether or polyester-based polyols are the same as those of the first embodiment described above, and the conditions for each step are the same. The biggest feature of the second embodiment of the invention is that the jade powder in the form of particulates is 0.1 to 50% by weight based on the polyether or polyester polyol, and additionally 1 to 10% by weight of the ocher powder is added to the polyol. The polyurethane foam is prepared and produced using the polyol mixture, and thus the conditions and working method steps are the same as in the first embodiment, and thus the detailed description thereof will be omitted.

Hereinafter, the present invention will be described in more detail with reference to Examples.

Example

In the present embodiment will be described through the embodiment corresponding to 30% of the fine jade powder of 5 to 50% of the weight ratio of the polyester or polyether-based polyol, the manufacturing process and the like are the same as the other embodiments And, as shown in the accompanying drawings of the present invention will be described on the basis of the data requested by the test by the Korea Far Infrared Association.

(1) Compounding process (S1)

First, in carrying out the present invention, jade, which is an additive material, is collected from minerals such as natural stones, and then finely pulverized into a fine particle shape through a separate grinder or the like.

Then, 100 kg of a polyester or polyether-based polyol was added to a stirring tank, and 30 kg of fine jade powder was added to the stirring tank with respect to the polyester or polyether-based polyol and stirred for about 3 hours. do.

When the stirring operation is completed, the milling operation is performed two or three times using a three-roll disperser so that the mixture of polyols (particularly, jade powder) can be more finely pulverized, and thus the milling operation is completed. When the filter is passed through the filter of about 80 mesh to filter the mixture of polyol to the appropriate size.

At this time, the size of the jade powder is most suitable about 300 to 1000 mesh.

When the above filtering is completed, the polyol mixture in the filtered state is passed through a filter to be sealed in a tank for a certain period of time to prevent reaction with moisture present in the outside air, and then sealed to remove air remaining in the polyol mixture. After complete aging of 12 or more in the tank in a closed state, it was to maintain a temperature of 20 ℃, which is an appropriate temperature to foam.

(2) Mixing process (S2)

When the above jade compounding step (S1) is completed and the mixture of the polyol reaches a state of being properly aged, the raw material for preparing the polyurethane foam by adding the jade is added to the tank at a predetermined ratio. The raw material is composed of 105 to 150 kg of polyol containing fine particulate jade having a size of 600 mesh, 43 kg of isocyanates, 2.7 kg of water (H ₂ O) as a blowing agent, 1.0 kg of silicon as a surfactant, and an amine catalyst. 0.04 kg of triethylenediamine, 0.40 kg of stannous octylic acid as a metal catalyst, 2.0 kg of diethanolamine as a crosslinking agent alone or in combination, to be injected into a tank in which a mixture of jade and polyol is mixed by the above blending process. It is stored in the tank and prepared for foaming.

When the preparation process for foaming is carried out as described above, the raw materials are transferred from the tank in which the raw materials are stored alone or in a combined state to the mixer at a predetermined ratio according to the mixing specification by a metering pump and separated from the tank in which the mixture such as polyol is stored. It is discharged to be uniformly mixed with the mixture introduced into the mixer by the transfer device of.

At this time, the mixer is suitable for 4400 rpm, it is preferable to maintain the head pressure of the mixer 1.4 kg _f / ㎠.

In this way, a mixture of jade-containing polyols and various raw materials are mixed at a predetermined ratio according to the mixing specification, and 2500 cc / min of air is introduced into the mixer by using a separate air compressor. Adjust the shape of the cells to be formed.

(3) Foaming process (S3)

The mixture to be mixed by the above mixing process causes self-heating by the carbon dioxide (CO ₂ ) generated from the reaction of water and isocyanates to cause foaming.

(4) Aging process (S4)

When the foam foamed by the foaming process (S3) is conveyed to the front end side of the conveyor in a vertically cut state at 2500 cm, the respective slab-type foams are aged to completely cure in the air. It is allowed to age in the atmosphere to allow complete termination of the reaction and complete curing.

Completely cured, foamed foam as described above can be supplied cut to the various forms desired by the consumer.

Example 1 described in detail the manufacturing process of the polyurethane foam of the present invention, in particular describes a method for producing a polyurethane foam by adding jade powder.

As shown in Example 1 above, the physical properties of the jade-containing polyurethane foam containing jade in a polyol weight ratio of 30% were tested by the test method of KS M 3014 and the test method of JIS K 6301. Is shown in Table 1 below.

Table 1

Item unit result Test Methods density kg / ㎥ 36.70 KS M 3014 Hardness kg _f / 314㎠ 11.0 JIS K 6301 Elongation % 87 KS M 3014 The tensile strength kg / ㎠ 0.86 KS M 3014 Tear strength kg / cm 0.40 KS M 3014 Resilience % 48 KS M 3014 Permanent compression set % 6.5 KS M 6672

On the other hand, the results of requesting the test using the sample of the present invention to the Korea Far Infrared Association, Inc. is attached to the data obtained by comparing the test results and the corresponding pictures, respectively, in FIGS.

As shown in Figure 1a and 1b and Table 2 below, the emissivity and the radiant energy were tested by testing at 37 ° C at room temperature, and the measured results compared with the black body using the FT-IR spectrometer. Table 2 shows.

TABLE 2

Item result Radiation energy (W / ㎥ ㆍ ㎛, 37 ℃) 3.50 × 10 ² Emissivity (5 ~ 20㎛) 0.909

On the other hand, Figure 2 and the following Table 3 shows the results of the antimicrobial test of E. coli and Pseudomonas aeruginosa against jade powder by requesting the same sample to the Korea Far Infrared Association, using the test method of KFIA-FI-1002, the strain used Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 15442 were used.

TABLE 3

Test Items Sample classification Initial concentration (dog / ml) Concentration after 24 hours (dog / ml) Bacterial Reduction Rate (%) Antibacterial test by Escherichia coli Blank 155 431 - Jade containing (urethane foam) 155 6 96.1 Antibacterial test by Pseudomonas aeruginosa Blank 228 516 - Jade containing (urethane foam) 228 8 96.5

As shown in Table 3 and Figure 2, the antibacterial test results for P. aeruginosa and Escherichia coli, the initial concentrations of E. coli and P. aeruginosa of the sample form containing jade were 155 (dog / ml) and 228 (dog / ml), respectively. The initial concentrations of Escherichia coli and Pseudomonas aeruginosa were blank (BLANK: indicating the atmosphere without sample), respectively, but the concentration of blank after 24 hours was E. coli. For example, 431 (pieces / ml) and P. aeruginosa were 516 (pieces / ml), which increased by 2 to 3 times, respectively. Samples of jade-containing urethane foams were 6 (pieces / ml) for E. coli, Pseudomonas aeruginosa showed 8 (dog / ml), and the bacterial reduction rate was 96.1% and 97.5%, respectively.

On the other hand, the following Table 4 is a result of the deodorization test by the test method of KFIA-FI-1004 using ammonia as the test gas, and the deodorizing power is tested in comparison with the foam in the state without the addition of oxforms and additives according to Table 4 This shows the gas concentration curve of the Korea Far Infrared Association.

Table 4

Test Methods Elapsed time (minutes) Blank concentration (ppm) Sample concentration (ppm) Deodorization rate (%) Deodorization test Early 500 500 - 30 490 125 74 60 480 105 78 90 460 90 80 120 450 80 82

That is, as shown in Table 4, the ammonia gas concentration was 500 ppm in the jade-containing sample and the blank, respectively, and the data was calculated every 30 minutes. The gas concentrations of sea blanks were 490, 480, 460 and 450 ppm, respectively. Meanwhile, in the case of jade-containing oxfoam samples, the gas concentrations were measured after 30, 60, 90 and 120 minutes. Deodorization rates of 74, 78, 80, and 82% were shown as gas concentrations of 105, 90, and 80 ppm, respectively.

In the embodiment of the present invention, when jade is contained in a weight ratio of 0.1 to 50% based on the polyester or polyether-based polyol according to the above test results, although the embodiment was described with reference to the test result of the above embodiment, Of course, by adding 0.1 to 50% of jade in a weight ratio as described above, the polyurethane foam is manufactured by making it applicable to all ranges in which polyurethane is used, such as various automobile seats, beds, refrigerator interior materials, and the like. Polyurethane foam that can act beneficially to the human body by facilitating decomposition, metabolism, blood circulation and deodorization effect, antibacterial and humidity control of various wastes accumulated in the body by far-infrared radiation You can expect the effect to provide.

In addition, the present invention by foaming only the powder of jade as an additive, can expect various effects without adding a variety of additives in order to have a variety of existing properties, and also can significantly reduce the manufacturing process of polyurethane foam, the production cost It can be expected to reduce the effect, it is a very useful invention that can reduce the economic burden due to the purchase of additives by adding various additives.

In addition, the present invention is to produce and produce a polyurethane using a polyol by mixing a certain ratio of ocher to a jade powder, so the effect of obtaining a good quality polyurethane foam with a good balance of jade and ocher. You can expect

On the other hand, the present invention has been described only for the manufacturing method of the jade-containing polyurethane foam with the addition of jade and the polyurethane foam thereof, but the minerals such as ganbanite, germanium, turmarin (tourmaline) having the same effect as the jade in the present invention Of course, the same weight ratio as jade can be manufactured and produced through the same process.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications may be made by the user.

Claims (5)

Step (S1) of adding a particulate jade powder having a size of 300 to 1000 mesh to a polyether or polyester polyol by adding 0.1 to 50% by weight to the polyol; Isosinate, blowing agent, surfactant, catalyst, metal catalyst, crosslinking agent alone or a mixture of two or more mixtures in the polyol formed by the compounding step (S1) after the preparation process of foaming 2000 to 2500 cc / min Mixing step of injecting air so that (S2); A step (S3) of foaming the reactant discharged by the mixing step (S2) with carbon dioxide gas generated by the reaction of water and isocyanates; And Method for producing a polyurethane foam, characterized in that the mating step (S4) of aging until the foam formed by the foaming step (S3) is completely cured. The method of claim 1, wherein the compounding process (S1) is further aged for 12 to 24 hours in a sealed state after milling operation using a disperser and filtering operation using an 80 mesh filter, and 20 to 25 for the foaming process. The polyurethane foam manufacturing method characterized by maintaining at a temperature of ℃. The method for producing a polyurethane foam according to claim 1, wherein the compounding step (S1) is performed by further mixing 1 to 10% by weight of ocher powder based on the polyol. The method of manufacturing a polyurethane foam according to claim 1, wherein at least one selected from the group consisting of germanium, elvan, and turmarin (tourmaline) powder is selected and blended in place of the jade powder. Polyurethane foam, characterized in that produced by the manufacturing method according to any one of claims 1 to 4 in producing a polyurethane foam.