JPH1143558A - Rubber elastomer and foamed rubber elastomer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject elastomer improved in the generation of minus ions; decreased in the sense of incompatibility common to equipments, etc., and useful for health therapeutic tools or industrial articles by adding a specific amount of tourmaline ore having a specified particle diameter, a vulcanizing agent and a vulcanization accelerator to a styrene-butadiene copolymer latex single substance or a rubber latex comprising the single substance and natural rubber, etc., and subsequently thermally vulcanizing the mixture. SOLUTION: This rubber elastomer is obtained by adding (B) 1-100 pts.wt. of tourmaline ore having an average particle diameter of 0.1 μm-1 mm and (C) 0-1.5 pts.wt. of a vulcanizing agent and 0.5-10 pts.wt. of a vulcanization accelerator to (A) 100 pts.wt. of styrene-butadiene copolymer latex single substance or a rubber latex comprising 100 pts.wt. of the single substance and 1-100 pts.wt. (as solid content) of natural rubber or a synthetic rubber, and subsequently vulcanizing the mixture at 90-130 deg.C for 30-60 min.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber elastic body and a foamed rubber elastic body. The present invention relates to a tourmaline ore blended at a desired low or high concentration depending on the purpose of a healing effect or the like, thereby supporting negative and positive ions. The present invention relates to a rubber elastic body and a foamed rubber elastic body which are useful for health care tools and industrial supplies.

[0002]

2. Description of the Related Art In recent years, attention has been paid to the therapeutic effect of ions having a negative charge. For example, negative ions have a sedimentary effect, soothing pain, sleepiness, antitussive, antiperspirant, increased appetite, lowering blood pressure, and refreshing. It is reported to have a drop such as feeling and fatigue prevention. It is also known that negative ions have antibacterial and deodorant effects. However,
Even if negative ions have a therapeutic effect, negative ion generators or devices are expensive and have only been used in some hospitals, etc., and have not yet become widely used.

[0003]

Generally, tourmaline ore, which is called tourmaline, is a polar crystal, which causes electric polarization even when it is not placed in an electric field. It is known that the ore is attracted to the positive electrode of the ore, electrons constantly flow from the negative electrode toward the positive electrode, and negative electrons are emitted from the negative electrode. Focusing on such a phenomenon, attempts have been made to coat tourmaline powder on fibers, or weave or knead them into fibers, and use them as underwear, supporters, and the like. Furthermore, by incorporating it into cosmetic materials and the like, it is also being used as a facial cosmetic. However, the amount of negative ions generated from tourmaline ores is extremely weak, and at present, sufficient effects have not been obtained.

[0004] For example, Japanese Patent Application Laid-Open No. Hei 7-14956 discloses that a rubber composition supporting fine tourmaline and a method for producing the same have excellent properties such as elastic wear resistance and aging resistance. Although it is stated that the tourmaline carrier can uniformly and increase the electrode force value in addition to the water contact material such as various cleaning tools, there is no proposal or improvement regarding the focusing of the anion effect of the tourmaline. Further, the healing effect, recovery from fatigue, deodorizing effect, etc. due to the generation of negative ions by supporting tourmaline ore, may require not only immediate effect but also sustainability depending on the purpose.

[0005] For this reason, the present inventor has disclosed, for example, Japanese Patent Application No.
No. 333517 proposes that an elastic body obtained by blending tourmaline ore with a gel-like elastic body and thermoforming increases the generation amount of negative ions and can be effectively used for various applications. . However, the elastic body obtained as described above has a drawback in that the field of application is limited in a wide variety of applications such as industrial equipment and the like, in addition to health treatment tools, and the same applies to the foam. In addition, in the field of tools for health treatment or industrial products, there is a demand for a proposal for an elastic body that further increases the electric field of negative static electricity, and for securing and sustaining the generation amount of negative ions for each desired application.

[0006]

Means for Solving the Problems The present inventors have examined various problems of these conventional methods, and found that the amount of anion generated from tourmaline ore is extremely weak, and a sufficient effect cannot be obtained. In addition, in order to ensure the amount of anion generation and its persistence for each application, the form of the elastic body to which the tourmaline ore is blended and supported is examined, for example, styrene butadiene latex alone, or natural rubber or synthetic rubber latex We focused on the suitability of a latex composition mainly composed of a mixture of styrene butter, a styrene butadiene rubber, ethylene propylene rubber or silicone rubber alone, and also variously examined the range of the concentration of tourmaline.

As described above, by using a latex rubber elastic body, a latex composition, styrene butadiene rubber, ethylene propylene rubber or silicon rubber alone, or a foamed rubber elastic body, the negative ions of the tourmaline ore can be focused. Each of the elastic bodies mixed with fine powder of an appropriate particle size of the tourmaline ore gives a soft touch feeling to the wearer's skin, for example, in the form of a sheet with a woven or knitted fabric, in which the amount of generation is remarkably improved. In addition, the configuration can eliminate common sense of incongruity in devices and the like, and is therefore useful as a form of each elastic body that can be applied to a wider and more diverse field of application such as health care tools or industrial supplies. I found something. Then, when kneading and mixing the finely powdered tourmaline ore, in order to obtain an effect due to the convergence of negative ions exhibited by the tourmaline ore, a low-concentration mixed region of at least 1 to 100 parts by weight is required. Was obtained. In addition, depending on the application, such as a curative effect such as a quick-acting pain, it is desired to generate a desired required amount of negative ions and, preferably, to have a permanent durability. For this reason, as a result of various studies on the applicable region, the compounding amount of the finely powdered tourmaline ore is adjusted to at least 400 to
It has been found that this can be achieved with a high concentration mixing zone of 500 parts by weight. In addition, in the high-concentration mixed form in this area, the behavior of the static electricity measurement value and the hydrogen ion concentration causes polymer
A phenomenon was observed in which the measured values were substantially constant irrespective of the difference in the base, and it was found that the generation of negative ions was effective because a remarkable and sustained state was expected.

That is, the present invention relates to a tourmaline ore having an average particle size of 0.1 μm to 1 mm is added to a latex composition mainly composed of styrene butadiene latex alone or a mixture of the simplex and natural rubber or synthetic rubber latex. To 100 parts by weight, and a rubber elastic body obtained by thermally vulcanizing a mixture containing a vulcanizing agent and a vulcanization accelerator, and the latex composition, having an average particle size of 0.1 μm to 1 mm. A tourmaline ore is mixed with 1 to 100 parts by weight, and a mixture of a vulcanizing agent and a vulcanization accelerator is heat-vulcanized to a latex rubber composition, a foaming stabilizer, a foaming agent, a coagulant, and the like. It is compounded, foamed and foamed with a whisk, and dried and heat-cured by coating or charging, and a foamed rubber elastic body, or styrene-butadiene rubber or ethylene propylene A rubber obtained by mixing 400 to 500 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm with 100 parts by weight of a lone rubber or silicone rubber, and thermally vulcanizing a mixture containing a vulcanizing agent and a vulcanization accelerator. An elastic body, and the styrene-butadiene rubber or ethylene propylene rubber or silicon rubber alone 100
An object of the present invention is to provide a foamed rubber elastic body obtained by mixing 400 to 500 parts by weight of tourmaline ore having an average particle diameter of 0.1 μm to 1 mm to parts by weight.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a rubber elastic body containing a low concentration of tourmaline powder is a rubber mainly composed of a styrene-butadiene latex alone or a mixture of the simple substance and a natural rubber or a synthetic rubber latex. A rubber obtained by mixing 1 to 100 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm to a latex composition, and thermally vulcanizing a mixture containing a vulcanizing agent and a vulcanization accelerator. Elastic body, styrene butadiene rubber, or ethylene propylene rubber or silicon rubber alone 100
Parts by weight are mixed with 400 to 500 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm, and a mixture of a vulcanizing agent and a vulcanization accelerator is thermally vulcanized to form a rubber elastic body. Things.

Further, in the present invention, in the foamed rubber elastic material in which tourmaline powder is blended at a low concentration, 1 to 100 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm is mixed with the latex composition. Then, a foam stabilizer, a foaming agent, a coagulant, etc. are blended into a latex rubber composition obtained by thermally vulcanizing a mixture containing a vulcanizing agent and a vulcanization accelerator, and the mixture is foamed and foamed by a whisk. The foamed rubber elastic body is characterized by being dried and thermally vulcanized by coating or charging.

Further, in the present invention, in the case of a rubber elastic body containing a high concentration of tourmaline granules, 100 parts by weight of styrene butadiene rubber, ethylene propylene rubber or silicon rubber alone has an average particle size of 0.1 μm to 1 m.
m-a tourmaline ore is mixed with 400 to 500 parts by weight, and a mixture containing a vulcanizing agent and a vulcanization accelerator is thermally vulcanized to emit high concentration tourmaline-containing negative ions. The configuration is as follows.

In the present invention, in the case of a foamed rubber elastic body containing a high concentration of tourmaline powder or granules, 100 parts by weight of the styrene-butadiene rubber, ethylene-propylene rubber or silicon rubber alone has an average particle diameter of 0.1 μm.
A mixture of 400 to 500 parts by weight of tourmaline ore of m to 1 mm and a mixture of a vulcanizing agent and a vulcanization accelerator are thermally vulcanized to form a latex rubber composition. A foamed rubber elastic body is prepared by compounding an agent or the like, foaming and foaming with a whisk, and drying and heat vulcanizing by coating or charging.

In the present invention, a styrene-butadiene latex alone or a mixture of styrene-butadiene latex and a natural rubber latex or a synthetic rubber latex can be used as the latex composition for forming the rubber elastic body and the foamed rubber elastic body. As the synthetic rubber latex, isoprene latex, chloroprene latex, acrylonitrile latex, polyurethane latex, ecrenepropylene diene copolymer latex, and the like can be used. As a mixing ratio of styrene butadiene latex and synthetic rubber latex, styrene butadiene latex solid content is 1 to 100 parts by weight,
Preferably, 25 to 50 parts by weight of the solid content of the synthetic rubber latex is the most preferable for better focusing negative ions.

In the present invention, as the tourmaline ore, tourmaline, lithium tourmaline, dravite tourmaline, ruberite tourmaline, pink tourmaline, indecorite, paraiba tourmaline, water-melon, etc. can be used. The so called tourmaline is preferred.

The particle size of the tourmaline ore is 0.1 μm to 1 μm.
When the particle diameter is in the range of about 00 mm, preferably 0.5 to 100 μm, and more preferably 0.5 to 10 μm, the surface area can be increased and a large amount of negative ions can be generated. The amount of tourmaline ore used is 100 parts by weight of solid content of the latex composition, preferably 5 to 20 parts by weight.

As the prescription compounding agent for forming the rubber latex elastic material to be vulcanized, the following can be mentioned as the vulcanization accelerator. TP (sodiumdi-n-butyldithoc)
mate), SDC (sodiumdityldithiocar)
bamate) P (pipecolinepipecolditho)
carbamate) PZ (zincdimethyldithiocarba)
mate) EZ (zinc-diethyldithiocarba)
mate) BZ (zinc-di-n-busldithocar)
bamate) PX (zincethylphenyldithoc)
arbamate) MZ (zinc salt of 2-mercat)
Accelerators such as benzothia-zole) can be used, and selection and blending amount can be determined according to vulcanization rate conditions. There is no particular limitation, but 0.1 to 1.5 parts by weight is usually preferable as a compounding part.

As the vulcanizing agent, colloidal sulfur is preferred. 0 to 1.5 parts by weight is appropriate as the compounding part. In addition, the compounding part 0 is sulfur-free vulcanization by accelerator vulcanization. As the activator, there are activated zinc flower and No. 1 zinc flower, and 0.5 to 10 parts by weight, preferably 0.8 to
5.0 parts by weight are preferred. As the dispersant, there are potassium oleate, sodium oleate, sodium lauryl sulfate, etc., which can be selected depending on the degree of dispersion, and the amount is preferably 0.5 to 5 parts by weight. As the liquid stabilizer and the pH adjuster, ammonia water is usually preferably 0.2 to 0.7 parts by weight.

Next, the following formulating ingredients for producing a foam having an open-cell structure formed by foaming and heat vulcanizing can be mentioned. Examples of the coagulant include soda silicofluoride, potassium silicosilicate, and soda titanium fluoride, preferably soda silicofluoride, and preferably 0.5 to 2.0 as a compounding part. As a method of foaming the compounded latex compound, a method in which air can be taken in while sending air by a cake mixer or a continuous bubbler so as to continuously discharge the mixture is preferable. As the expansion ratio at that time, a range of 2.0 to 3.0 times is appropriate.

The drying and vulcanizing conditions are as follows:
The temperature can be set at 30 ° C. for a time of 30 to 60 minutes, depending on the compounding agent and equipment conditions, and is not particularly limited.

Tourmaline ore, which is generally called tourmaline, is a polar crystal, which is electrically polarized even when not placed in an electric field, and negative ions existing in nature are attracted to the plus electrode of tourmaline ore. It is known that negative electricity is emitted from the negative electrode, but the amount of negative ions generated from tourmaline ore is extremely weak, and a sufficient effect cannot be expected. As described above, tourmaline generates only a weak negative ion, but in a form in which the tourmaline is blended as styrene butadiene alone or as a combination of styrene butadiene latex and natural rubber or synthetic rubber latex, -10
It works so that a rubber elastic body or a foamed rubber elastic body that emits negative ions of 000 V or more can be obtained.

Although the details of the mechanism are not always clear, by forming the tourmaline in the form of a rubber elastic body or a foamed rubber elastic body in combination with a latex rubber composition, a rubber elastic body or a foamed rubber compound containing and carrying the tourmaline is provided. A rubber elastic body that focuses negative ions in the air and air to create a negative static electric field, and emits a large amount of negative ions by strongly emitting intermediate infrared electromagnetic waves with a wavelength of 4 to 14μ collected by tourmaline. It is inferred. Moreover, the strong negative ion effect which emits the above, sterilization with H ₂ gas react with curative effect or the strong negative ion effect and moisture for various symptoms, OH ^- in the building and deodorizing effect weakly alkaline atmosphere Work to bring.

Further, 400 to 500 parts by weight of the powdered and granular tourmaline is added to a rubber elastic body or foamed rubber elastic body containing 1 to 100 parts by weight of the tourmaline at a low concentration. In a rubber elastic body or a foamed rubber elastic body blended at a high concentration, the negative ion effect generated by tourmaline is remarkable and has a sufficient sustainability. The details of the mechanism are not necessarily clear, but when tourmaline is mixed with the base polymer, the distance between the tourmaline particles is shorter at a higher concentration than at a lower concentration, and the connection between the surface and the interior is more matrilic. It is presumed that the electromagnetic field of tourmaline is efficiently connected and amplified, and the effect of emitting negative ions is further increased. On the other hand, in a rubber elastic body or foam rubber elastic body containing a high concentration of tourmaline, the measured value is almost constant irrespective of the difference of the polymer base as seen in the numerical value of the static electricity measurement. Furthermore, even when the hydrogen ion concentration changes, the measured value is almost constant irrespective of the difference in the polymer base, and more than 4 hours, the pH has already been alkalized, and the negative ion reaction has progressed further. I understand.

As a result, the rubber elastic body and foamed rubber elastic body containing a low concentration of tourmaline powder and granules are made of undergarments such as waist-wraps and pillow covers utilizing such excellent characteristics.
Can be used as health care tools such as beddings and insoles. Furthermore, it can be used as mats, sheets, flooring materials, and various other industrial deodorant products by utilizing particularly excellent deodorizing and sterilizing effects.

For rubber elastic bodies and foamed rubber elastic bodies containing a high concentration of tourmaline granules, for example, even in a wear test using a supporter, a wristband, etc., in the case of a high concentration product, a low concentration product was found to have a small number. While stiffness and pain are alleviated over a period of days, stiffness and pain are alleviated in a short time with a high concentration of tourmaline, that is, with immediate effects such as recovery from fatigue,
It is presumed that the synergistic effect of manifestation persistence of negative ion generation is brought about.

[0025]

EFFECTS OF THE INVENTION The rubber elastic body and foamed rubber elastic body according to the present invention containing a low concentration of tourmaline generate a large amount of negative ions as compared with the case where tourmaline ore is used alone and maintain its effect. Therefore, it has excellent effects as a health care tool and deodorant product. Also,
By the form of the rubber elastic body or foam rubber elastic body of the present invention,
In addition to excellent deodorant and bactericidal effects and a moderate rubber elasticity function as an elastic body, in addition to abrasion resistance, aging resistance, etc., it has a thick wall and is used in a wide variety of applications including the field of industrial supplies. It can be used effectively in the field. Further, the rubber elastic body and foamed rubber elastic body containing the tourmaline according to the present invention in a high concentration exhibit effects such as quick relief of pain and remarkable persistence even in recovery from fatigue.

[0026]

The present invention will be described below in detail with reference to examples.

Example 1 Styrene butadiene latex (70%) solid content, 10
0 parts by weight, 10 parts by weight of tourmaline powder, average particle size 6 μm, vulcanizing agent, 1.0 part by weight of colloidal sulfur,
A vulcanization accelerator, an accelerator EZ (0.5 parts by weight), sodium oleate (1.0 parts by weight), and ammonia water (0.5 parts by weight) are added, dispersed by stirring, and aged for 1 day. I got something. After applying the above composition to salim nonwoven fabric (manufactured by Asahi Kasei Corporation) and cotton knit and drying,
Heat vulcanization was performed at 100 ° C. for 30 minutes to obtain a sheet-like rubber elastic body having a thickness of 1 mm.

Example 2 Styrene butadiene latex (70%) solids, 75
Parts by weight, and solid content of natural rubber latex (63%),
Tourmaline powder, average particle size 6 μm,
10 parts by weight, and the same vulcanizing agent as in Example 1 above,
1.0 part by weight, a vulcanization accelerator, 0.5 part by weight, 1.0 part by weight of sodium oleate, and 0.5 part by weight of aqueous ammonia were added, and a 1 mm-thick A sheet-like rubber elastic body was obtained.

Example 3 Styrene butadiene latex (70%) solids, 75
Parts by weight and isoprene latex (70%) solid content, 25 parts by weight, tourmaline powder, average particle size 6μ
m, 10 parts by weight, the same vulcanizing agent as in Example 1, 1.0 part by weight, vulcanization accelerator, 0.5 part by weight, sodium oleate, 1.0 part by weight, ammonia water 0.5 part by weight 1 part by weight in the same manner as in Example 1
Thus, a sheet-like rubber elastic body of m was obtained.

Comparative Examples 1 and 2 As Comparative Example 1, the solid content of natural rubber latex (63%), 100 parts by weight, and as Comparative Example 2, the solid content of isoprene latex (70%), 100 parts by weight, respectively A sheet-like rubber elastic body having a thickness of 1 mm was obtained.

Next, a foaming stabilizer, a foaming agent, a latex rubber composition obtained by thermally vulcanizing a mixture of tourmaline and a vulcanizing agent and a vulcanization accelerator are blended with the above latex composition. A foamed rubber elastic body having an open-cell structure obtained by mixing a coagulant and the like, drying and heat vulcanizing was obtained.

Example 4 Styrene butadiene latex (70%) solid content, 10
0 parts by weight, tourmaline powder, average particle size 6 μm, 1
0 parts by weight, a vulcanizing agent, 2.3 parts by weight of colloidal sulfur, 1 part by weight of a vulcanization accelerator, ZDEC and ZMBT,
A latex-containing composition was prepared by adding 0.5 parts by weight of potadium rosin acid soap and 1.5 parts by weight of sodium silicofluoride. After the above composition was stirred and dispersed, the mixture was foamed by a continuous foaming apparatus using an Otis mixer to prepare a foaming ratio of 3.0 times, and then applied to a salim nonwoven fabric and a cotton knit. , Drying and vulcanization at 130 ° C, 30
Then, a foamed rubber elastic body having an open cell structure of 3 mm was obtained.

Example 5 Styrene butadiene latex (70%) solids, 75
Parts by weight, and solid content of natural rubber latex (63%),
Tourmaline powder, average particle size 6 μm,
10 parts by weight, a vulcanizing agent, 2.3 parts by weight of colloidal sulfur, a vulcanization accelerator, ZDEC and ZM
1 part by weight of BT, potadium rosin acid soap,
A latex-containing composition was added to which 0.5 part by weight, 1.5 parts by weight of sodium silicate were added. After stirring and dispersing the composition, a foamed rubber elastic body having an open cell structure with a thickness of 3 mm was obtained in the same manner as in Example 4 above.

Example 6 Styrene butadiene latex (70%) solids, 75
Parts by weight and isoprene latex (70%) solid content, 25 parts by weight, tourmaline powder, average particle size 6μ
m, 10 parts by weight, and vulcanizing agent, 2.3 parts by weight of colloidal sulfur, vulcanization accelerator, ZDE
C and ZMBT were each added as a latex-containing composition to which 1 part by weight, 0.5 parts by weight of potassium rhodium soap, 1.5 parts by weight of sodium silicate were added. After stirring and dispersing the composition, a foamed rubber elastic body having an open cell structure with a thickness of 3 mm was obtained in the same manner as in Example 4 above.

Comparative Example 1 and Comparative Example 2 As Comparative Example 1, the solid content of natural rubber latex (63%), 100 parts by weight, and as Comparative Example 2, the solid content of isoprene latex (70%), 100 parts by weight, respectively A 3 mm sheet-like foamed rubber elastic body was obtained.

Various properties of the low-concentration tourmaline-containing rubber elastic body and foamed rubber elastic body and high-concentration tourmaline-comprising rubber elastic body and foamed rubber elastic body according to the present invention obtained as described above are obtained by the following methods. Was measured.
Tables 1 and 2 show the measurement results of the low-concentration tourmaline-containing rubber elastic body and the foamed rubber elastic body according to the present invention. As a comparative example, the results of similarly measuring various properties of tourmaline having an average particle size alone are shown.

Test method Electrostatic potential measurement: Measured with an electrostatic potential measuring device STATILON DZ (manufactured by Shisido Electric Co., Ltd.). The measured value of the electrostatic potential of the rubber elastic body with a woven fabric or the rubber foamed elastic body in a state where the measurement temperature is kept at 25 ° C. is defined as the measured value of the electrostatic state,
The measured value of the electrostatic potential after rubbing each elastic body surface five times by hand was used as the measured value of the dynamic state. For the tourmaline powder, the electrostatic potential after the powder was mixed by hand was used as the measured value of the dynamic state.

2. Negative ion measurement: Ion tester
Measured by KST-900 (manufactured by Kobe Denpa Co., Ltd.). Measurement temperature 25 ° C. The stationary state complied with the sand filter method.

3. Odor test: Using a trimethylamine detector tube or an ammonia detector tube, the gas concentration in the Tedlar bag was measured over time. Sample size 5 × 4 cm. Measurement temperature 23
° C.

[0040]

[Table 1]

[0041]

[Table 2] As is evident from the negative ion measurement results in Tables 1 and 2, tourmaline alone or Comparative Examples 1 and 2 generate a very small amount of negative ions, whereas tourmaline ore powder according to the present invention. Examples 1 to 3 comprising
It can be seen that the amount of negative ions in the rubber elastic body of Example 1 and the rubber foamed elastic bodies in Examples 4 to 6 are significantly increased.

[0042]

[Table 3]

[0043]

[Table 4]

As is clear from the results of the odor tests shown in Tables 3 and 4, when the rubber elastic body and the foamed rubber elastic body of the present invention were used, trimethylamine was used in comparison with the case of tourmaline alone and Comparative Examples 1 and 2. , And the amount of decomposition of ammonia is increased, indicating a large value.

Using the rubber elastic bodies of Examples 1 to 3 or the foamed rubber elastic bodies of Examples 4 to 6, waist-wraps, mache covers, and shoe insoles were prepared, and each was subjected to a fitting test. The waist-wrap and the macra cover are usually formed by using a sheet with a cotton knit as a woven cloth with respect to the rubber elastic body obtained in Examples 1 to 3 or the foamed rubber elastic body obtained in Examples 4 to 6. And finished in the shape of a macaque cover. The shoe insole is a woven cloth with salim non-woven fabric.
The finished product was made into a normal shape using a slab and adhered to the midsole of the shoe.

[0046]

[Table 5]

As is clear from the results of the fitting test shown in Table 5, it was found that when the rubber elastic body and the foamed rubber elastic body of the present invention were used as waist winding, lower back pain was reduced. Further, when used as a macaque cover, it is considered that a sleep effect was brought about by a causal relationship with the effect of a strong negative ion. Furthermore, when used as a shoe insole, an exceptional deodorizing effect was recognized in addition to the fatigue reducing effect. Regarding this deodorizing effect, it is considered that the strong negative ions exerted a bactericidal effect and an effect of decomposing or promoting a malodorous substance.

Next, Table 11 shows Examples 11 to 15 relating to rubber elastic bodies containing 400 parts by weight of powdered tourmaline in addition to the above-mentioned Examples in which powdered tourmaline is blended at a low concentration.

[0049]

[Table 6]

Table 7 shows Examples 16 to 20 relating to the foamed rubber elastic body containing high-concentration tourmaline.

[0051]

[Table 7]

With respect to Examples 11 to 15 of the rubber elastic bodies and the foamed rubber elastic bodies containing the high-concentration tourmaline described above, various characteristics were measured by the above method. Table 9 shows the results of measuring various characteristics in the same manner.

[0053]

[Table 8]

[0054]

[Table 9]

Using the rubber elastic bodies of the above Examples 11 to 15, five wristbands were prepared for each of the wristbands, and each of the wristbands was wrapped around the wrist and subjected to a wearing test. As a result, in the low-concentration tourmaline formulation, the effect of relieving wrist pain and shoulder stiffness was obtained slowly in a few days, whereas in the fitting products of Examples 11 to 15 in which the high-concentration tourmaline formulation was used, 1 It was found that pain in the wrist and stiff shoulders were alleviated in about 2 hours or less, and that the immediate effect and its sustained effect were exhibited.

Using the foamed rubber elastic bodies of the above Examples 16 to 20, waistband fittings were produced. The waist band is
A cotton smooth-knit fabric is attached to a 1.5 mm sheet of foamed elastic material and cut into an elliptical shape with a length of 30 cm.
The periphery was sewn with a cotton tape, and five waist bands were sewn at the center of the stretchable cotton MK stretch band. The wearing test results of the above-mentioned try-on products are as follows. (1) In particular, as a result of having a person with a bad back wear it,
In 10 minutes after wearing, the waist warmed up warmly, the waist became slightly lighter, the pain eased, and an immediate effect was obtained. In addition, pain has not been felt during wearing for about 8 hours. After removing it, I felt pain after a while, so it was better to keep wearing it without removing it. Then, as a result of continuous wearing for one week, it was found that even if the try-on article was removed, no pain was felt, and the sustainability was exhibited together with the immediate effect of the negative ion effect. (2) Thermography test results (Handy Thermo T
VS100, manufactured by Nippon Avionics Co., Ltd.), the surface temperature of the waist increased by 1.6 ° C. to 32.6 ° C. before wearing and 34.2 ° C. one hour after wearing. As a reference blank, in the simultaneous test of waist band of foamed elastic body without tourmaline, wear 1
After a lapse of time, the temperature reached 33.3 ° C., and the difference increased by 0.90 ° C.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08L 21/00 C08L 21/00

Claims (6)

[Claims] 1. A rubber latex composition mainly composed of styrene-butadiene latex alone or a mixture of the styrene butadiene latex and a natural rubber or a synthetic rubber latex, containing 1 to 100% by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm. A rubber elastic body which emits negative ions by containing a low-concentration tourmaline obtained by heat vulcanizing a mixture obtained by partially mixing and mixing a vulcanizing agent and a vulcanization accelerator. 2. A solid content of 100 parts by weight of the styrene-butadiene latex alone or 100 parts by weight of the styrene-butadiene latex solid content, and a solid content of 100 parts by weight of a natural rubber or synthetic rubber latex solid content of 1 to 100 parts by weight.
2. The rubber elastic body according to claim 1, wherein the rubber elastic composition contains 1 part to 100 parts by weight of a tourmaline ore having an average particle diameter of 0.1 μm to 1 mm mixed with the rubber latex composition containing 1 part by weight to generate negative ions. 3. . 3. The latex composition has an average particle size of 0.1.
A latex rubber composition obtained by mixing 1 to 100 parts by weight of tourmaline ore of 1 μm to 1 mm and blending a vulcanizing agent and a vulcanization accelerator with heat is added to a latex rubber composition, a foaming stabilizer, a foaming agent, and a coagulation agent. A foamed rubber elastic body characterized in that it contains a low-concentration tourmaline obtained by blending an agent or the like, foaming and foaming by a whisk, and drying and heat vulcanization by coating or charging, thereby generating negative ions. 4. Open cells formed by blending a foaming stabilizer, a foaming agent, a coagulant, and the like with the latex rubber composition, foaming the mixture with a whisk, and foaming to a foaming ratio of 1.5 to 5.0 times. The foamed rubber elastic body according to claim 3, having a structure. 5. A vulcanizing agent and a vulcanization accelerator, wherein 400 to 500 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm is mixed with 100 parts by weight of styrene butadiene rubber or ethylene propylene rubber or silicon rubber alone. A rubber elastic body which emits negative ions containing high-concentration tourmaline obtained by thermally vulcanizing a mixture containing the compound. 6. The styrene butadiene rubber, ethylene propylene rubber or silicone rubber alone 100
By weight, 400 to 500 parts by weight of tourmaline ore having an average particle size of 0.1 μm to 1 mm is mixed, and a foaming stabilizer, a foaming agent, a coagulant, and the like are blended, foamed and foamed by a whisk, The foamed rubber elastic body according to claim 5, wherein the foamed rubber elastic body emits negative ions containing high-concentration tourmaline formed by drying and heat vulcanization by coating or charging.