JPH081007B2 - Method for producing fiber having deodorizing property and antibacterial property - 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 a fiber having both deodorizing property and antibacterial property.

[0002]

2. Description of the Related Art Although deodorizing fibers or antibacterial fibers have hitherto been known, fibers having both deodorizing properties and antibacterial properties have not existed.

[0003]

As described above, since fibers having both deodorant and antibacterial properties have not existed in the past, for example, underwear, sheets, futon covers, and other kitchen cloths, especially in hospitals. However, there was a problem in that even if it was cleaned or washed, the odor and germs were not removed and it was extremely unsanitary.

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 fibers having deodorant and antibacterial properties.

[0005]

The present invention has a particle size of 15 μm.
The following magnesia fine powder is used as a base material, and alumina, silica, zinc oxide, titanium, zeolite, and serpentine having a particle size of 15 μm or less are ceramics of a single component with respect to 30 to 75% by weight of the base material. Or any one of fine powders of amphibole as a mixture,
5% by weight is added to and mixed with the base material, and further added as the mixture material among fine powders of alumina, silica, zinc oxide, titanium, zeolite, serpentine, or amphibole having a particle size of 15 μm or less. Using any one type other than mixed as an auxiliary material, the auxiliary material is added to and mixed with the base material at a ratio of 15 to 35% by weight, and is sequentially charged into a mixer and a pulverizer several times, The base material, the mixing material and the auxiliary material are mixed and stirred and pulverized to be uniformly mixed, and thereafter 200 to
The above problems were solved by adopting a means of mixing the composite ceramics obtained by firing with a firing machine at a calcination temperature of 500 ° C. with a polymer having a radical group and spinning the mixture to form fibers .

[0006]

The composite ceramics having deodorizing and antibacterial properties described above have alkaline properties and generate cations with no change in hydrogen ion concentration over time to kill general viable bacteria and decompose hydrogen sulfide and ammonia. . Then, the composite ceramics is mixed with a polymer having a radical group and spun into a fiber, so that the fiber has deodorant and antibacterial properties.

[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.

From the above viewpoints, the present inventor individually measures the deodorizing rate and the antibacterial rate of each of the single-component ceramics, extracts the one excellent in the deodorizing rate or the antibacterial rate, and based on each of the above ceramics. Material, a mixed material, or an auxiliary material, which are mixed and stirred at a constant ratio, and then calcined to produce a composite ceramic having deodorizing property and antibacterial property, and the composite ceramic is radically mixed. Mixed with a polymer having a base and spun into a fiber
With, to complete the deodorizing property and fibers, each of which has antimicrobial properties.

When the deodorizing rate and the antibacterial rate of the single component ceramics used as the base material of the composite ceramic having deodorizing and antibacterial properties used in the present invention were measured, the measured values shown in Table 1 were obtained.

[0010]

[Table 1]

From the results shown in Table 1, magnesia has an antibacterial activity of approximately 100% against both Escherichia coli and B. aureus, and alumina has an antibacterial activity of approximately 100% against E. coli. It was found that there was no antibacterial activity against Streptococcus. Furthermore, silica stone has a deodorization rate of 100% for hydrogen sulfide and 93% for ammonia, but has almost no antibacterial properties, and zinc oxide has a deodorization rate of 100% for hydrogen sulfide. Has almost no deodorizing and antibacterial properties against water, and titanium has a deodorizing rate of 60% for ammonia, but has little deodorizing properties for hydrogen sulfide and little antibacterial property I understood. Furthermore, zeolite has a high deodorization rate as described above, but has almost no antibacterial properties. Serpentine has a deodorization rate of 100% with respect to hydrogen sulfide, but has no deodorization property with respect to ammonia. ,
It has almost 100% antibacterial activity against staphylococci, but has little antibacterial activity against Escherichia coli, amphibole has almost no deodorization, and it is found to be slightly antibacterial against staphylococci. Was.

Based on the above results, magnesia having an antibacterial rate of nearly 100% against both Escherichia coli and staphylococci was employed as the base material of the deodorizing and antibacterial composite ceramics used in the present invention. Then, one kind of a single-component ceramic, alumina, silica, zinc oxide, titanium, zeolite, serpentine, and amphibolite is mixed with 30 to 75% by weight of magnesia as a base material.
5 to 35% by weight of the alumina, silica, zinc oxide, titanium, zeolite, serpentine, amphibolite, and any one other than the above-mentioned mixture as an additive. By adding and mixing to the substrate at a ratio of 15 to 35% by weight, a composite ceramic having both deodorizing properties and antibacterial properties was obtained.

The method for producing a composite ceramic having deodorant and antibacterial properties will be described in more detail below. The magnesia serving as the base material, and the particle size of the ceramics serving as the admixture and the auxiliary material are preferably 15 μm or less, particularly preferably 10 μm or less. Then, each ceramic has different physical properties such as specific gravity, moisture, humidity and the like, and each of the ceramics as a raw material is a fine powder having a particle size of 15 μm or less. It is not very easy to mix each ceramic uniformly.

Therefore, the present inventor puts the base material, the mixing material and the auxiliary material in a mixing machine at a predetermined ratio and mixes and stirs them, and then puts the mixture into a grinding machine and grinds it. The base material, the mixing material and the auxiliary material are adopted by adopting a means of sequentially repeating the process of putting the pulverized material into the mixer again, mixing and stirring the mixture, and then again supplying the material to the pulverizer and pulverizing for about 30 minutes. It was possible to make a composite ceramic in which and were uniformly mixed.

In order to stabilize the chemical characteristics of the uniformly mixed composite ceramics, the composite ceramics are fired at a calcination temperature of 200 to 500 ° C. by a firing machine to have deodorizing property and antibacterial property. It is a composite ceramic.

Next, alumina, silica, zinc oxide, titanium, zeolite, serpentine, and amphibolite serving as a mixing material and an auxiliary material are added to magnesia as the base material for each single component.
Table 2 shows the results of measuring the deodorization rate and antibacterial rate of the composite ceramics obtained by changing the mixing ratio.

In Table 2, No. 1 to No. In each of the composite ceramics 8 and the mixing ratio, the upper row shows magnesia as a base material, the middle row shows a mixed material, the lower row shows an auxiliary material, and the respective mixing ratios.

[0018]

[Table 2]

From the results in Table 2 above, particularly for magnesia,
The composite ceramics in which any one of titanium, zinc oxide, silica, and alumina is added and mixed as a mixing material and an auxiliary material, and the composite ceramics in which serpentine and amphibole are added and mixed as an auxiliary material have a synergistic effect in deodorizing rate and antibacterial rate. A high value was obtained, and it was found that the deodorizing property and the antibacterial property were excellent.

The hydrogen ion concentration of each ceramic as a material of the composite ceramic is in an alkaline state as shown in Table 3.

[0021]

[Table 3]

The hydrogen ion concentration of the above-mentioned composite ceramics in which the respective ceramics having the hydrogen ion concentration shown in Table 3 are compounded is 200 ° C. to 500 ° C. as described above, so that the alkaline properties are very stable. As shown in Table 4, the hydrogen ion concentration does not change with time. Further, these composite ceramics are crystallized by calcination to become composite ceramics having a function of generating electric field energy (cations). The reason why the composite ceramic exhibits an alkaline property is that impurities are gasified during the firing process, so that the composite ceramic becomes more alkaline than the single-component ceramic.

[0023]

[Table 4]

The composite ceramics obtained by the above manufacturing method from Tables 3 and 4 are composite ceramics having cations, and become hydrogen ions in the alkaline region.
The composite ceramics obtained by the above-mentioned manufacturing method have both antibacterial and deodorant properties, and are stable over a long period of time of more than one year without any change over time. It turns out that they have both.

That is, in general, the surface layer (wall) of viable bacteria is an anion, and therefore the neutral region (pH 7.0 to 7.
Although it can only inhabit 5), it produces cations as the greatest characteristic of the complex composite ceramics obtained by the above-mentioned production method, so that the surface layer (wall) of bacterial cells which are anions is At the same time as being destroyed by the cations of the composite ceramics, the bacterial protein is denatured and becomes difficult to breathe and die.

Further, the deodorizing action on hydrogen sulfide, ammonia, etc. is not a general action such as physical adsorption or chemical adsorption, and is not saturated due to the decomposition action. It has both permanent and non-toxic properties.

It is preferable that the particle size of the composite ceramic particles used as the material for the production method of the present invention is sufficiently small so as not to hinder the production of fibers. In the case of a relatively thick fiber, a fiber having a particle size of about 5 to 15 μm can be used, but a fiber having a particle size of about 0.1 to 5 μm is preferable, and a fiber having a particle size of about 0.2 to 1.5 μm is particularly preferable. On the other hand, if the particle size is 0.1 μm or less, the particles tend to agglomerate, which is often inconvenient.

The mixing ratio (weight) of the composite ceramics to the polymer is preferably in the range of 10 to 80%, 2
0 to 70% is particularly preferable, and 30 to 60% is the most preferable. From the viewpoint of deodorizing property and antibacterial property, the higher the mixing ratio of the composite ceramics, the more preferable, but in terms of fiber production, the lower mixing ratio is often preferable.

The composite ceramics generate electric field energy (cations) between the grains of the ceramics (between different ceramics). That is, the base material (polymer)
Since the radical group of is generally unstable, it is excited by light energy for stabilization and its energy increases, and this energy excites the unique property (cation) of the composite ceramics, The deodorizing property and antibacterial property are increased, and the action and effect are also increased.

The polymer mixed with the above composite ceramics has OH group, COOH group, NH group, C
Polyamide, polyester, polystyrene, polyurethane, acrylic, polycarbonate and polyacrylonitrile having radical groups such as N group, Cl group, NO group and CO group are suitable, and by mixing these polymers with the composite ceramic, When excited by light, the electric field energy is increased, and the deodorizing and antibacterial effects are increased.

The material is that the fiber obtained by the present invention production process
Use yarn, now commonly having deodorant property and antimicrobial is
It can be produced by the conventional spinning method. That is,
Spinning, stretching, heat treatment, etc. can be performed at normal speed,
High-speed spinning makes it possible to obtain semi-oriented or fully oriented yarns . Moreover, fiber <br/> Wei that obtained by the present invention production process, and crimping the yarns with the deodorization and antibacterial properties,
Alternatively, it can be made into a woven fabric, a knitted fabric, a non-woven fabric, or a napped knitted fabric according to the purpose in the same manner as in the past by itself without being crimped, or in the form of staples alone or in the form of a staple by mixing with fibers. Furthermore , textiles such as underwear, socks, and sheets, which are required to have deodorant and antibacterial properties, can be easily produced by the same method as the conventional one.

The fibers obtained by the above production method were tested for antibacterial property and deodorant property, and the results shown in Table 5 were obtained.

[0033]

[Table 5]

As described above, since the composite ceramics mixed in the polymer having a radical group is excited by light energy, the deodorizing rate and the antibacterial rate are excellent. In this case, if the polymer has a radical group, its exciting action (motion) is large, and the exciting action effectively acts on the deodorizing power and antibacterial power which are the cation action of the composite ceramics. That is, light energy is converted into photoions, and the photoions excite the electric field energy of the composite ceramics to generate positive ions.

[0035]

EFFECTS OF THE INVENTION A composite ceramic having deodorant and antibacterial properties, which is mixed with a polymer having a radical group, which is a raw material for the production method of the present invention, exhibits alkaline properties and has no change in hydrogen ion concentration with time, and a cation. In addition to having an antibacterial property by killing general viable bacteria that occurs, it also has a deodorizing property by decomposing hydrogen sulfide and ammonia, and since the antibacterial property and deodorizing property have its effect permanently, the present invention is manufactured. The fiber obtained by the method possesses both deodorant and antibacterial properties due to the above composite ceramics, and is particularly used for sheets, futon covers and others in hospitals, cloths, socks, etc.,
Its use is extremely wide.

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Claims (3)

[Claims] 1. A magnesia fine powder having a particle size of 15 μm or less is used as a base material, and the base material is composed of 30 to 75% by weight of a single component ceramic, alumina, silica stone or oxide having a particle size of 15 μm or less. One kind of fine powder of zinc, titanium, zeolite, serpentine, or amphibolite is used as a mixture, and the mixture is added to and mixed with the base material at a ratio of 15 to 35% by weight. One of alumina, silica stone, zinc oxide, titanium, zeolite, serpentine, or amphibolite fine powder having a diameter of 15 μm or less, other than the above-mentioned mixture added and mixed, is used as an auxiliary material. To the base material at a ratio of ~ 35% by weight,
It is charged into a mixer and a crusher several times in sequence, and the base material, the mixing material and the auxiliary material are mixed and stirred and crushed to be uniformly mixed, and then at a calcination temperature of 200 to 500 ° C. the composite ceramic obtained by firing the firing equipment, mixed with a polymer having a radical group spinning method for producing a fiber having a deodorant and antimicrobial, characterized in that the fibers. 2. A composite ceramic is used as a polymer in an amount of 20 to 7
The method for producing a fiber having deodorizing property and antibacterial property according to claim 1, which comprises 0% by weight. 3. The method for producing fibers having deodorant and antibacterial properties according to claim 1, wherein the polymer is any one of polyamide, polyester, polystyrene, polyurethane, acrylic, polycarbonate and polyacrylonitrile.