JP2843510B2 - Plastic or rubber antibacterial foam containing natural stone and products using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic or rubber MRSA (methicillin) containing trissenite powder.
Antimicrobial foam against resistant Staphylococcus aureus) and medical products using the antimicrobial foam against MRSA . MRSA of the plastic or rubber of the present invention
Antibacterial foam against can be utilized mainly in the packing (padding). Since it has an excellent antibacterial activity against MRSA and a function of radiating far-infrared rays, it is particularly effective when used for medical-related bedding, furniture and bedding for restoring and maintaining health.

[0002]

2. Description of the Related Art The present inventor has found a far-infrared radiation effect which is extremely characteristic of a natural stone, commonly known as Sansenite from Taiwan.
We invented a synthetic fiber containing Sansenishi powder earlier (Japanese
Flat 4-272212 No. described in Japanese). Synthetic fiber-containing synthetic fibers have been found to be excellent in heat retention and the like, and have been widely used in various fiber products such as bedding and clothing.

[0003]

As a result of repeated studies to utilize the characteristics of sengoku powder, the present inventors have found that products containing samsenite powder in the material of various products are not only capable of emitting far-infrared radiation. Has much higher antimicrobial properties than originally thought, especially methicillin-resistant Staphylococcus aureus (MRSA)
Was found to be highly antibacterial. The present invention has been completed as a result of research for the purpose of effectively utilizing the characteristics of these sengoku powders.

[0004]

SUMMARY OF THE INVENTION The present invention provides an antimicrobial foam against MRSA , characterized in that it is a foam of a mixture of plastic or rubber and powder of trissenite . Also, at least 30% by weight of plastic or rubber
Resistant to MRSA , characterized in that it is a foam of a mixture with a mixed powder consisting of sengoku and black bean serpentine
A fungal foam is provided. As the plastic or rubber, polyurethane having a wide range of use can be preferably used. The antimicrobial foam for MRSA of the present invention comprises:
It is suitable for packing (stuffing) such as medical bedding.

[0005]

Operation and Example The operation according to the present invention will be specifically described with reference to examples. First, Sansenishi found by the present inventor is a local name indicating igneous rock mainly collected on the Pacific coast of Taiwan, Taiwan (in Japan, this is also called aura stone). Sansenishi is said to have been destroyed by the seamounts generated from the magma that erupted to the sea floor, and it was said to have hit the Pacific coast of the Southern Islands, including Taiwan, and was divided into various color systems such as blue and red. . Any of them can be used in the present invention. Further, in the present invention, other ore components can be mixed with the sengoku powder added to the plastic or rubber foam and used. The preferred second component found by the present inventors is black soybean serpentine from Taiwan. Black bean flower serpentine from the Pacific side of central Taiwan, especially near Yuli village, is suitable for the present invention. The black bean flower serpentine has a slight difference depending on the components, but is usually dark green with black spots.

When the natural stone powder is incorporated into a plastic or rubber foam, useful effects such as antibacterial property, deodorizing property and heat retaining property of the foam are remarkably improved. In order to elucidate the cause, the components of Sansen stone and black bean flower serpentine were analyzed. Table 1 shows the results of the identification of the compound by the X-ray diffraction method, and Table 2 shows the results of the qualitative and quantitative analysis by the fluorescent X-ray. Among them, sample 1 was blue sengsen, sample 2 was red senseng, and sample 3 was black bean serpentine from Yuli village, Hualien, Taiwan.

In the present invention, the addition amount of the sensate is not particularly limited in the plastic or rubber foam. There are problems, such as the difficulty in foam molding, and there is naturally a limit. The appropriate amount of addition also depends on the type of plastic or rubber and the purpose of use. For example, when it is added to foamed polyurethane, it is usually 0.5 wt.
-20% by weight. When the black bean flower serpentine powder is mixed with the sengoku, it is desirable that the mixed powder contains at least 30% by weight of the sengoku powder. Three Sengoku powder
When the content is 0% by weight or less, the effect of the addition becomes inferior.

As one means for investigating the cause of the action of the natural stone used in the present invention, the sample was pulverized, molded under pressure, and the far-infrared emissivity was measured (measured by Nagoya Kogyo Kogyoin). Technical Testing Laboratory). The abscissa indicates the wave number (cm ^-1 ) and the ordinate indicates the spectral emissivity (%). FIG. 1 shows the measurement results of Sansengoku (Sample 1), and FIG. 2 shows the measurement results of Sansengoku (Sample 2). . In each case, wave number 500-2200c
90 over almost the entire range of m ^-1 (wavelength 4.5 to 20 μm).
% Of the spectral emissivity was very high. FIG. 3 shows a sample of black bean flower serpentine (sample 3) produced from the vicinity of Tamari village.
FIG. 4 shows the measurement results of the spectral infrared emissivity at 0 ° C., the spectral emissivity (%) on the vertical axis, and the wave number (cm ⁻¹ ) on the horizontal axis.
The measurement results of the hemisphere spectral infrared radiant emittance at ° C., the vertical axis the spectral radiant emittance (W / m ² · μm) Wavelength horizontal axis (mu
m). 500 ° C, wave number 330-5000
The emissivity in the range of cm ^-1 (wavelength 2-30.3 μm) is 9
3%. In FIG. 4, B is a measurement result of a black body measured for comparison. The sengoku and the black serpentine serpentine used in the present invention have excellent spectral emissivity in the far infrared region.

Next, an antimicrobial polyurethane for MRSA containing 5% by weight of trissenite powder according to the present invention is prepared.
The results of the production of the foam and its effect on heat storage and blood circulation of the human body were compared with ordinary foamed polyurethane containing no ore using thermography, and the results are shown in FIGS. 5 and 6. In FIG. 5, (a) shows M of the present invention.
The hand was put on the pad of the antibacterial polyurethane foam against RSA for 5 minutes, then the hand was released. After 5 minutes, the temperature of the contact portion of the hand was measured. It is the result of having measured the temperature of the contact part of the hand on the pad of the body. In FIG. 6, (a)
Is an antimicrobial polyurethane foam for MRSA of the present invention
The back surface temperature distribution measured 5 minutes after the test subject lies on his / her back on the body for 30 minutes, and (b) is the back surface temperature distribution performed in the same manner for a normal polyurethane foam. From these results, the MRSA of the present invention
On the other hand, it can be seen that the antibacterial foam has excellent heat storage properties and has a very favorable effect on the blood circulation of the human body.

Furthermore, the antibacterial activity of the present invention against MRSA
The antibacterial property of the foam was measured. Producing a polyurethane foam containing 5% by weight of sengoku,
Using this as a sample, a mold resistance test was carried out in accordance with JIS Z 2911 (mold resistance test method) 6.2.2 (textile product test, wet method) (Measurer: Osaka Municipal Industrial Research Institute) . As a result, no hyphal growth was observed,
The display of mold resistance based on the result was "3". Furthermore, for a polyurethane foam (sample (1)) containing 5% by weight of senseng, separately manufactured, with reference to the shake flask method of the antibacterial and deodorizing processing certification standard of the Textile Sanitation Processing Council, a standard agar medium was used. Was used to test the antibacterial activity against methicillin-resistant Staphylococcus aureus (Kyoto Microbial Research Institute isolate) and Pseudomonas aeruginosa (measured by Japan Food Research Laboratories). The results are shown in Tables 3 and 4. .
It is thought that the sengoku has an excellent antibacterial activity against methicillin-resistant Staphylococcus aureus and other fungi.

[0011] Similarly, the antibacterial activity against methicillin-resistant Staphylococcus aureus, Staphylococcus aureus and Pseudomonas aeruginosa was tested using a polyester fiber containing sensate as a specimen (Measurement: Japan Food Research Laboratories, Inc.) ), And the results are shown in Tables 5, 6 and 7 for reference. It is supported that Sansenishi has an excellent antibacterial activity against methicillin-resistant Staphylococcus aureus and other fungi.

As is clear from the analysis results shown in Table 2, the natural stone used in the present invention contains a large number of components, and which component or any combination of those components works effectively. It is extremely difficult to determine if they are, and unfortunately, they have not yet been identified. But,
A delicate combination of many components unique to natural stones and their ratios have an effect not seen in foamed plastic mixed with artificial ceramics of simple components and bring about the effects of the present invention. I guess. The analytical values described above relate to one sample of the sengoku and the black bean serpentine used in the present invention, and do not limit the composition of the sengoku and the black bean serpentine used in the present invention.

With respect to the MRSA of the present invention described above,
The antibacterial foam exhibits an excellent antibacterial action without using a synthetic germicide or the like. However, the present invention does not preclude the addition of synthetic agents such as weathering agents, ozone-resistant agents, pigments and synthetic germicides.

The plastic or rubber constituting the foam of the present invention is not particularly limited, and examples thereof include polyurethane, polyethylene, polystyrene, rayon, various synthetic rubbers, and natural rubber. In particular, the present invention can be preferably used for a polyurethane foam widely used as a foam.

[0015] Any of the methods for producing an antibacterial foam against MRSA of the present invention can be used. For example, a method using a mechanical stirring, a method using a reaction product gas, a method using a foaming agent, and the like can be used. Antimicrobial foam for MRSA of the present invention
An example of a method for producing plastic will be described. The blue and red sengoku and the black bean flower serpentine are each ground to about 50 to 300 mesh, preferably about 200 mesh. These three kinds of powders are uniformly mixed at an appropriate ratio according to the purpose. At least 30% by weight of sensengite in the mixed powder is used. One example of the mixing ratio is 75% by weight of red sengoku, 15% by weight of blue sengoku, 1 black serpentine serpentine
It was 5% by weight. This mixed powder is further finely divided,
The particles are formed into particles having an average particle diameter of 20 μm or less, preferably 5 μm or less, and more preferably 2 μm or less. For example, with respect to the polyurethane foam material 95 m ^3, the mixed fine particles obtained 5～8M ³ added and mixed. These powders can be incorporated either during the plastic or rubber foam manufacturing process. For example, they can be added and mixed in a polymerization raw material adjusting step, a polymerization step, and the like.

Further, the antibacterial activity of the present invention against MRSA
The application of the foam will be described with an example. MRSA of the present invention
Is excellent in antibacterial properties against MRSA and far-infrared radiation, and is used as packing for various applications, for example, beddings such as pillows, waist pillows, mattresses; cushions, chairs, cushions, and red bean paste. Furniture, such as floor mats; car seats, headrests; core materials and pads for clothing; It is particularly suitable for packing products used in contact with humans .
By utilizing the excellent antibacterial property of the foam of the present invention against MRSA, it is preferable to use the foam for medical-related bedding and chairs.

When the foam of the present invention is used as a packing, one or more of senseng, black soybean serpentine, quartz, black agate or obsidian are processed into an appropriate shape and embedded in the packing of the present invention. By embedding, fitting, sewing or affixing to the surface, the effect of these ores, for example, on the far-infrared radiation properties, can also be used. It is convenient to make the installation easy. Depending on the type of use of these ores, favorable results can be obtained by attaching them at the position where the user's "acupoint" in oriental medicine contacts. In an orka, etc., if an electric heater with a thermostat attached to a tubular ore is built in,
It can be used warm and efficient. There is no restriction on the shape of the ore used, button, ball, column, plate,
Granular etc. Granular ore may be mounted in a container or bag. This is especially good for pillows.
FIG. 5 shows an example of a pillow in which the ore is used in combination with the foam of the present invention. FIG. 1 is a perspective view of a pillow in which a button-shaped obsidian 2 and granular obsidian beads sealed in a flexible container are fitted on the surface of a polyurethane foam 1 containing a sengoku powder according to the present invention.

[0018]

[Table 1]

[0019]

[Table 2]

[0020]

[Table 3]

[0021]

[Table 4]

[0022]

[Table 5]

[0023]

[Table 6]

[0024]

[Table 7]

[0025]

Since the plastic or rubber foam of the present invention is excellent in antibacterial properties, far-infrared radiation, deodorizing properties and flame retardancy, its products also have similar properties. In particular, it has a revolutionary antibacterial property against methicillin-resistant Staphylococcus aureus, and is effective in preventing hospital-acquired infection when used in medical bedding, etc., and is a means of solving various serious problems caused by methicillin-resistant Staphylococcus aureus. Can be expected as. In addition, it has high far-infrared radiation characteristics, so if it is used not only for households and transportation equipment, but also for furniture and bedding for health recovery and health maintenance, etc. Can be.

[Brief description of the drawings]

FIG. 1 is a measurement chart of far-infrared emissivity of powder of Sansenishi (sample 1).

FIG. 2 is a chart of measurement of far-infrared emissivity of powder of Sansengoku (sample 2).

FIG. 3 shows the spectral infrared emissivity of the serpentine (sample 3) powder (5
00 ° C) measurement chart

FIG. 4 is a measurement chart of hemispherical spectral infrared radiation emission (500 ° C.) of serpentine (sample 3) powder.

FIG. 5 (a) shows a package of the polyurethane foam of the present invention.
Hold the palm on the hand for 5 minutes, then release and measure after 5 minutes.
Boss was the temperature distribution of the palm, (b) is usually of polyurethane were measured in the same manner as (a)
Palm temperature distribution over the tongue foam pad.

FIG. 6 (a) shows a test on a polyurethane foam of the present invention.
After the person sleeps on her back for 30 minutes, 5 minutes after getting up
The measured back surface temperature distribution, (b) is the same for a normal polyurethane foam
Performed back surface temperature distribution.

FIG. 7 shows an example of a pillow in which an ore having excellent radiation characteristics in far infrared rays is used in combination with the foam of the present invention.

[Explanation of symbols]

1: Polyurethane foam containing trissenite 2: Button-shaped obsidian 3: Granular obsidian beads enclosed in a flexible container

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29K 21:00 75:00 105: 04 105: 16 C08L 101: 00 (73) Patent holder 999999999 Suzuki Takanobu Seikicho, Toyokawa City, Aichi Prefecture No. 7 68 (73) Patent holder 999999999 Harumi Otake 17-17, Takeshima-cho, Gamagori-shi, Aichi (72) Inventor Koichi Nishikawa 58, Komatsu-cho, Toyohashi-shi, Aichi (56) References JP-A-1-182030 (JP, A) JP-A-4-272212 (JP, A) JP-A-1-144433 (JP, A) JP-A-6-136696 (JP, A) JP-A-63-304037 (JP, A)

Claims (5)

(57) [Claims] 1. MRSA , characterized in that it is a foam of a mixture of plastic or rubber and powder of sengoku.
Antibacterial foam against (methicillin-resistant Staphylococcus aureus) . 2. Plastic or rubber and at least 3
MRSA , characterized in that it is a foam of a mixture with a mixed powder consisting of 0% by weight of sengoku and black bean serpentine.
Antibacterial foam against . 3. The MRS according to claim 1, wherein the plastic or rubber is polyurethane.
Antibacterial foam for A. 4. An MRSA according to claim 1, 2 or 3,
Packing made of antibacterial foam . 5. A medical bedding filled with the packing according to claim 4.