JP2579600B2 - Method for producing rayon having antibacterial properties and deodorizing properties and having far-infrared radiation characteristics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing rayon having antibacterial properties and deodorizing properties and far-infrared radiation characteristics.

[0002]

2. Description of the Related Art Conventionally, while having antibacterial properties and deodorizing properties,
Rayon with far infrared radiation properties was not present.

[0003]

As described above, since rayon having both antibacterial properties and deodorizing properties and far-infrared radiation characteristics did not exist in the past, it was made by blending rayon with cotton or synthetic fiber. The undergarments, sheets, futon covers, and other kitchen cloths, especially in hospitals, are extremely unsanitary, even after cleaning and washing, without removing odors and other germs. Since sheets do not emit far-infrared rays, the skin surface temperature cannot be raised, and blood flow cannot be promoted.

[0004] The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for producing rayon having antibacterial properties and deodorizing properties, and far-infrared radiation characteristics.

[0005]

According to the present invention, a magnesia fine powder having a particle size of 5 μm or less is used as a base material, and
With respect to 0 to 80% by weight, a fine powder of silica stone having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight. Using a fine powder of zinc oxide as an auxiliary material,
The mixture is added to and mixed with the base material in a ratio of weight%, and is sequentially charged into a mixer and a pulverizer a plurality of times. The base material and the mixed material and the auxiliary material are mixed, stirred, pulverized, and uniformly mixed. Then, in a mixing step or a defoaming step in a rayon manufacturing process, the composite ceramic obtained by firing with a firing machine at a calcining temperature of 200 to 500 ° C. 10% by weight, and mixed with the viscose, a magnesia fine powder having a particle size of 5 μm or less is used as a base material.
A fine silica powder having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight. Using the fine powder as an auxiliary material, the auxiliary material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and the mixture is added to a mixer and a pulverizer several times in succession. And auxiliaries are mixed, stirred and crushed to mix uniformly, and then 2
In a mixing step or a defoaming step in a rayon manufacturing process, 5 to 10% by weight of a composite ceramic obtained by firing by a firing machine at a calcining temperature of 00 to 500 ° C. is charged into a spinning tank charged with viscose. Means for mixing and adding to the viscose, a fine powder of magnesia having a particle size of 5 μm or less as a base material, and a fine powder of zinc oxide having a particle size of 5 μm or less with respect to 10 to 40% by weight of the base material. As a mixture, the mixture is added to the base material at a ratio of 10 to 40% by weight, and the mixture is further mixed with 20 to 80% by weight of a fine zeolite powder having a particle size of 5 μm or less. The mixture is added to the base material at a ratio of, and charged into a mixer and a pulverizer sequentially over a plurality of times, and the base material and the mixed material and the auxiliary material are mixed and stirred and pulverized to be uniformly mixed, After that 2
In a mixing step or a defoaming step in a rayon production process, 5 to 10% by weight of a composite ceramic obtained by firing with a firing machine at a calcining temperature of 00 to 500 ° C is charged into a mixer into which viscose has been charged. Means for mixing and adding to the viscose, a fine powder of magnesia having a particle size of 5 μm or less as a base material, and a fine powder of zinc oxide having a particle size of 5 μm or less with respect to 10 to 40% by weight of the base material. Is mixed with the base material at a ratio of 10 to 40% by weight, and a fine powder of calcium oxide having a particle size of 5 μm or less is used as an auxiliary material, and the auxiliary material is used in an amount of 20 to 80% by weight. % Of the base material, and the mixture is put into a mixer and a pulverizer in succession a plurality of times. After that, temporarily at 200-500 ° C In the mixing step or the defoaming step in the rayon production process, the composite ceramics obtained by firing with a firing machine at a temperature is put into a spinning tank containing viscose in an amount of 5 to 10% by weight and added to the viscose. The above problem was solved by adopting any of the means of mixing.

[0006]

The composite ceramic used in the present invention has an alkaline property, generates cations without a change in hydrogen ion concentration with time, kills general viable bacteria, and has an action of decomposing hydrogen sulfide and ammonia. And has far-infrared radiation characteristics. The composite ceramic is added to and mixed with viscose during the rayon manufacturing process, so that the rayon has antibacterial properties and deodorizing properties, and has far-infrared radiation characteristics.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Among ceramics of a single component, zeolite and silica stone have a deodorization rate of 80 to 100% with respect to ammonia and hydrogen sulfide, which are odor sources, respectively, and are very excellent in deodorization. However, it is known that it has no antibacterial properties against Escherichia coli and staphylococci. Also,
Among the single-component ceramics, magnesia has an antibacterial rate close to 100% against Escherichia coli and staphylococci, and is extremely excellent in antibacterial properties, but is completely deodorant against ammonia and hydrogen sulfide. It is known that there is no.

In view of the above, the present inventor has determined that the antibacterial rate, deodorizing rate, and far-infrared emissivity of a single-component ceramic are measured individually, and are superior in antibacterial rate, deodorizing rate, and far-infrared emissivity. While extracting
Each of the ceramics is used as a base material, a mixed material and an auxiliary material, and mixed and stirred at a constant ratio, and then calcined to have antibacterial properties and deodorizing properties, and also have far-infrared radiation properties. While producing composite ceramics,
By adding the composite ceramics to viscose during the rayon production process, rayon having antibacterial properties and deodorizing properties and far-infrared radiation characteristics was completed.

The antibacterial, deodorizing, and average emissivities of the single component ceramics constituting the composite ceramics having far-infrared radiation properties as well as having antibacterial properties and deodorizing properties used in the present invention were measured. 1. The measured values shown in Table 2 were obtained.

[0010]

[Table 1]

[0011]

[Table 2]

From the results shown in Table 1, it can be seen that magnesia has an antibacterial activity of nearly 100% for both Escherichia coli and staphylococci, but has no deodorizing property.
Although it has a deodorization rate of 00% and ammonia, it has a deodorization rate of 93%, but has almost no antibacterial property. Zinc oxide has a deodorization rate of 100% with respect to hydrogen sulfide, but has almost no deodorization property with respect to ammonia. , Almost no antibacterial,
Amphibole has only a moderate degree of deodorization, has some antibacterial properties against staphylococci, and zeolite has a high deodorization rate as described above, but has almost no antibacterial properties, and calcium oxide has little effect on ammonia and hydrogen sulfide. On the other hand, it has a moderate deodorization rate and a medium antibacterial rate against Escherichia coli, but has a high antibacterial property against Staphylococcus. Further, from the results in Table 2, it was found that each of the ceramics had a relatively high emissivity.

From the above results, the present inventor has found that magnesia having a relatively high emissivity while having an antibacterial rate close to 100% against both Escherichia coli and staphylococci is used in the present invention. Silica or zinc oxide is added to and mixed with magnesia as the base material, and zinc oxide (excluding zinc oxide as the mixture material) and amphibolite as auxiliary materials. ,
By adding and mixing any one of zeolite and calcium oxide to the base material, it is considered that a composite ceramic having antibacterial properties and deodorizing properties and emitting far-infrared rays can be obtained, and the mixing ratio of each of the ceramics is varied. The antibacterial rate, deodorizing rate and emissivity were measured differently.

As a result of the measurement, when the base material is magnesia, the mixed material is silica stone, and the auxiliary material is zinc oxide, magnesia is 20 to 80% by weight, silica is 10 to 40% by weight, and zinc oxide is 10 to 40% by weight. In particular, it is recommended to use 50% by weight of magnesia, 25% by weight of silica, and 25% by weight of zinc oxide. Further, when the base material is magnesia, the mixed material is silica stone, and the auxiliary material is amphibolite. 20 to 80% by weight of magnesia, 10 to 40% by weight of silica stone,
The amphibole is preferably 10 to 40% by weight, particularly preferably 50% by weight of magnesia, 25% by weight of silica and 25% by weight of amphibole. Further, the base material is magnesia, and the mixed material is zinc oxide. When the auxiliary material is zeolite, magnesia is 10 to 40% by weight, and zinc oxide is 10 to 4% by weight.
0% by weight and 20 to 80% by weight of zeolite are preferable, and it is particularly preferable to use 25% by weight of magnesia, 25% by weight of zinc oxide and 50% by weight of zeolite. The material is zinc oxide,
When the auxiliary material is calcium oxide, magnesia 10
It is preferable that the content be 40 to 40% by weight, 10 to 40% by weight of zinc oxide, and 20 to 80% by weight of calcium oxide, and it is particularly preferable that 25% by weight of magnesia, 25% by weight of zinc oxide, and 50% by weight of calcium oxide be used. It turned out to be.

[0015] Magnesia, silica, zinc oxide, amphibole, zeolite, and calcium oxide, which are single-component ceramics constituting the composite ceramics employed in the present invention, are manufactured by mixing them at the respective preferable mixing ratios shown in Table 3. Table 4 shows the results of measuring the emissivity, repellent effect, antibacterial rate, and deodorization rate of the composite ceramic thus obtained. Table 4
The symbols 1 to 4 in Table 1 correspond to the symbols 1 to 4 in Table 3.

[0016]

[Table 3]

[0017]

[Table 4]

From the results shown in Table 4, all composite ceramics show high values in antibacterial and deodorizing rates due to the synergistic effect of each ceramic of each single component constituting the composite ceramics. , As well as excellent emissivity and repellency.

The method for producing a composite ceramic having antibacterial properties and deodorizing properties employed in the present invention will be described in more detail below. The particle diameter of each ceramic of each single component constituting the composite ceramics must be fine powder of 5 μm or less, and when these ceramics are mixed, the specific gravity, moisture, humidity, etc. The characteristics of the ceramics are different from each other, and each of the ceramics, which are the raw materials, is a fine powder having a particle size of 5 μm or less. Therefore, it is very difficult to uniformly mix the ceramics because the agglomeration acts easily.

The inventor of the present invention introduced the base material, the mixed material and the auxiliary material into the mixer at predetermined ratios according to the mixing ratios shown in Table 3 and mixed and stirred the mixture. By throwing in and pulverizing, and further, repeating the process of throwing the ground into the mixer again, mixing and stirring, and then throwing into the mill again and grinding for about 30 minutes. Thus, a composite ceramic in which the base material, the mixed material, and the auxiliary material were uniformly mixed could be produced.

In order to stabilize the chemical properties of the uniformly mixed composite ceramics, the composite ceramics are fired at a calcining temperature of 200 to 500 ° C. by a firing machine to have antibacterial properties and deodorizing properties. In addition, a composite ceramic having far-infrared radiation characteristics is obtained.

The hydrogen ion concentration of each of the ceramics as the material of the composite ceramics is in an alkaline state as shown in Table 5. Also, the composite ceramics composed of each of the above ceramics has an alkaline property as shown in Table 6. Symbols 1 to 4 in Table 6 correspond to symbols 1 to 4 in Table 3.

[0023]

[Table 5]

[0024]

[Table 6]

The hydrogen ion concentration of the composite ceramics used in the present invention in which each ceramic having the hydrogen ion concentration shown in Table 5 is composited is 200 ° C. to 500 ° C. as described above.
Since it was calcined at ° C., as shown in Table 6, it exhibited a very stable alkaline property, and as shown in Table 7, there was no change in hydrogen ion concentration with time. Further, these composite ceramics are crystallized by calcination to become composite ceramics having a function of generating electric field energy (cation). The reason why the composite ceramic exhibits an alkaline property is that impurities are gasified during the sintering process, so that the composite ceramic becomes more alkaline than a single component ceramic.

[0026]

[Table 7]

From Tables 5 to 7, the composite ceramics obtained by the above-described production method is a composite ceramic having a cation, and becomes hydrogen ions in an alkaline region.
It is stable for a long time of not less than one year without change over time, and has a property that the deodorizing mechanism is a decomposing action. As a result, the composite ceramics obtained by the above-described manufacturing method has a far infrared radiation characteristic. In addition, it can be seen that it has both antibacterial and deodorizing effects.

That is, generally, the surface layer (wall) of a living bacterium is an anion, and therefore, has a neutral region (pH 7.0 to 7.0).
Although it is impossible to inhabit only in 5), cations are generated as the greatest characteristic of the composite ceramics obtained by the above-mentioned manufacturing method, so that the surface layer (wall) of the bacterial cells which are anions, At the same time as being destroyed by the cations of the composite ceramics, the bacterial protein is denatured, resulting in dyspnea and death.

Furthermore, the deodorizing action on hydrogen sulfide and ammonia is not a general action such as physical adsorption or chemical adsorption, but does not become saturated due to decomposition action. It is permanent and has no toxicity.

It is preferable that the particle size of the particles of the composite ceramics used as the material of the production method of the present invention is sufficiently small so as not to hinder the production of rayon. In the case of relatively thick rayon, those having a particle size of about 5 to 15 μm can be used.
Those having a thickness of about 1.5 μm are preferred. Conversely, the particle size is 0.1
When the particle size is less than μm, aggregation of particles is likely to occur, which is often inconvenient.

In the mixing step in the known rayon manufacturing process, the composite ceramics manufactured by the above manufacturing method is put into a mixing machine for mixing to make the quality of viscose constant and uniform. The composite ceramic is added to and mixed with viscose, preferably at a ratio of 5 to 10% by weight, particularly preferably 8% by weight.

Alternatively, instead of adding and mixing in the mixing step of the composite ceramics, after the mixing step and the filtration step,
In the defoaming step of putting the viscose into the spinning tank and defoaming, the composite ceramic is charged into the spinning tank at a ratio of preferably 5 to 10% by weight, particularly preferably 8% by weight. May be added.

After the composite ceramic is added to and mixed with the viscose in the above process, rayon is manufactured by a known rayon manufacturing process.

The rayon obtained by adding and mixing the composite ceramics indicated by the symbols 1 to 4 obtained with the above particularly preferable mixing ratio to cellulose was tested for antibacterial properties, deodorizing properties and emissivity. The result was obtained.

[0035]

[Table 8]

The rayon obtained by the present invention is mainly used by blending cotton, synthetic fiber and the like, and the proportion of the blend varies depending on the use and the like. The main applications are clothing, kimono, lining, underwear, underwear and blankets.

The composite ceramics used in the production method of the present invention has far-infrared radiation characteristics, but the far-infrared radiation of rayon produced by the production method of the present invention and the general-purpose rayon using composite ceramics of different types of ceramics to be mixed. When the emissivity was measured, as shown in FIG. 1, the far-infrared emissivity of rayon according to the production method of the present invention was 5 μm in wavelength.
It was found to be 80% or more over 20 μm from the front and back, which was extremely higher than that of general-purpose rayon. Reference numerals 1 to 4 in the figure correspond to symbols 1 to 4 in Table 3, and indicate rayon to which each of the composite ceramics manufactured at a preferable mixing ratio is added and mixed. When the hydrogen ion concentration of each rayon according to the production method of the present invention was measured, each was neutral at pH 7.0 to 7.8.

As described above, when underwear and underwear mixed with rayon according to the production method of the present invention having a high far-infrared emissivity are used, the radiation efficiency of far-infrared rays at body temperature increases, thereby increasing the skin surface temperature. In addition, the body water is activated by the radiation of far-infrared rays and the blood flow is promoted, so that there is an effect such as recovery from fatigue. In addition, since the rayon according to the production method of the present invention is neutral at pH 7.0 to 7.8,
Ideal as a material for underwear and underwear to be applied to the human body.

[0039]

The composite ceramics having antibacterial properties and deodorizing properties used as the material of the production method of the present invention exhibit alkaline properties, do not change with time in the hydrogen ion concentration, generate cations, and kill general viable bacteria. In addition to having antibacterial properties, it also has a deodorizing property by decomposing hydrogen sulfide and ammonia, and its antibacterial properties and deodorizing properties have a permanent effect. It possesses both antibacterial and deodorant properties by using composite ceramics,
By blending with cotton or synthetic fiber, it is used especially for sheets, futon covers and other cloths, socks, etc. in hospitals, and its use is extremely wide. Further, since the rayon obtained by the production method of the present invention has a far-infrared radiation characteristic, by using the rayon as underwear or underwear mixed with cotton or the like, the skin surface temperature is raised and the blood flow is promoted. It has the effect of making it work.

[Brief description of the drawings]

FIG. 1 is a diagram showing the emissivity of rayon and general-purpose rayon obtained by the production method of the present invention.

Claims (4)

(57) [Claims] 1. A magnesia fine powder having a particle size of 5 μm or less is used as a base material.
A fine powder of silica stone having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and a fine powder of zinc oxide having a particle size of 5 μm or less is used as an auxiliary material. The auxiliary material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and the mixed material and the auxiliary material are mixed with the base material, the mixed material and the auxiliary material by sequentially charging the mixed material and the pulverizer several times. Stir and crush to mix uniformly, then 200-500 ° C
In a mixing step or a defoaming step in a rayon manufacturing process, 5 to 10% by weight of a composite ceramic obtained by firing by a firing machine at a calcining temperature of A method for producing rayon having antibacterial properties and deodorizing properties characterized by being mixed with a course, and having far-infrared radiation characteristics. 2. A magnesia fine powder having a particle size of 5 μm or less is used as a base material.
A fine silica powder having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and a fine powder of amphibolite having a particle size of 5 μm or less is used as an auxiliary material. The auxiliary material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and the mixed material and the auxiliary material are mixed with the base material, the mixed material and the auxiliary material by sequentially charging the mixed material and the pulverizer several times. The composite ceramic obtained by stirring and pulverizing to uniformly mix and then firing by a firing machine at a calcining temperature of 200 to 500 ° C. is subjected to viscose in a mixing step or a defoaming step in a rayon manufacturing process. 5 to 10 in the spinning tank
A method for producing rayon having antibacterial properties and deodorizing properties, and far-infrared radiation characteristics, wherein the rayon is added and mixed with the viscose by weight%. 3. A magnesia fine powder having a particle size of 5 μm or less is used as a base material.
A zinc oxide fine powder having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight, and a zeolite fine powder having a particle size of 5 μm or less is used as an auxiliary material. The auxiliary material is added to and mixed with the base material at a ratio of 20 to 80% by weight, and the mixed material and the auxiliary material are mixed with the base material and the mixed material and the auxiliary material by sequentially charging the mixture into a mixer and a pulverizer a plurality of times. Stir and grind to mix uniformly, then 200-5
In a mixing step or a defoaming step in a rayon manufacturing process, the composite ceramic obtained by firing with a firing machine at a calcination temperature of 00 ° C.
A method for producing rayon having antibacterial properties and deodorizing properties, and far-infrared radiation characteristics, wherein 10% by weight is added and mixed with the viscose. 4. A magnesia fine powder having a particle size of 5 μm or less is used as a base material.
A zinc oxide fine powder having a particle size of 5 μm or less is used as a mixed material, and the mixed material is added to and mixed with the base material at a ratio of 10 to 40% by weight. The auxiliary material is added to and mixed with the base material at a ratio of 20 to 80% by weight, and the mixed material and the auxiliary material are added to the mixer and the pulverizer sequentially several times. Mix and stir and grind to mix uniformly, then 200
In a mixing step or a defoaming step in a rayon production process, 5 to 10% by weight of a composite ceramic obtained by firing with a firing machine at a calcination temperature of ~ 500 ° C is charged into a spinning tank charged with viscose. A method of producing rayon having antibacterial properties and deodorizing properties, and far-infrared radiation characteristics, which is characterized by being added to and mixed with the viscose.