JPH05112415A - Antimicrobial talc composition - Google Patents
Antimicrobial talc compositionInfo
- Publication number
- JPH05112415A JPH05112415A JP7297692A JP7297692A JPH05112415A JP H05112415 A JPH05112415 A JP H05112415A JP 7297692 A JP7297692 A JP 7297692A JP 7297692 A JP7297692 A JP 7297692A JP H05112415 A JPH05112415 A JP H05112415A
- Authority
- JP
- Japan
- Prior art keywords
- talc
- antibacterial
- antimicrobial
- composition
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は抗菌性を有するタルク、
詳しくは抗菌性を有する金属イオン又は金属を担持させ
てなる安全な抗菌性タルク組成物に関するものである。The present invention relates to talc having antibacterial properties,
More specifically, the present invention relates to a safe antibacterial talc composition supporting metal ions or metals having antibacterial properties.
【０００２】[0002]
【従来の技術】現在、生活における種々な分野、例えば
食品、化粧品、台所用品、日用品、医薬品、医療用具、
工業、農業などの分野で、多種の抗菌剤が使用されてお
り、その殆んどが有機系の抗菌剤である。従来から微量
で強い殺菌作用を有する金属が存在することは知られて
いたが、それらの使用についてはあまり検討が加えられ
ていなかった。2. Description of the Related Art Currently, various fields in daily life such as food, cosmetics, kitchen utensils, daily necessities, pharmaceuticals, medical equipment,
Various kinds of antibacterial agents are used in fields such as industry and agriculture, and most of them are organic antibacterial agents. It has been conventionally known that a small amount of a metal having a strong bactericidal action exists, but its use has not been studied so much.
【０００３】近年それら金属の強い殺菌性、耐熱性に注
目され、それら金属又は金属イオンをイオン交換により
担持させたゼオライトで代表されるような無機系抗菌剤
が開発され、更にリン酸カルシウム系やガラスなどの無
機物にそれら金属又は金属イオンを吸着又はイオン交換
により担持させたような無機系抗菌剤が種々検討されて
いる。In recent years, attention has been paid to the strong bactericidal properties and heat resistance of these metals, and an inorganic antibacterial agent represented by a zeolite carrying these metals or metal ions by ion exchange has been developed. Various inorganic antibacterial agents in which the metal or metal ion is supported by adsorption or ion exchange on the inorganic substance have been studied.
【０００４】然しながら、ゼオライトやガラスに殺菌性
金属又は金属イオンを担持させた無機系抗菌剤は、使用
する媒質によっては金属イオンが多量に媒質中に放出さ
れ、放出された金属イオンが薬害を及ぼすことがあるの
で、いかなる媒質中でも安全に使用できるとは限らず、
又合成樹脂に添加して成形品、フィルム等の成形体とし
て用いる場合、この金属イオンの溶出により樹脂を変色
させる可能性があるのでその用途、使用法が限定され
る。一方リン酸カルシウム系無機系抗菌剤では、金属イ
オンの溶出による安全性や変色の問題は少ないが、樹脂
に添加する場合、分散性に幾分の問題があり、そのため
成形体の抗菌力に問題が残る。However, in an inorganic antibacterial agent in which a sterilizing metal or metal ion is supported on zeolite or glass, a large amount of the metal ion is released into the medium depending on the medium used, and the released metal ion exerts phytotoxicity. Therefore, it cannot be safely used in any medium,
In addition, when it is added to a synthetic resin and used as a molded product such as a molded product or a film, the resin may be discolored by the elution of the metal ions, so that its use and usage are limited. On the other hand, with calcium phosphate-based inorganic antibacterial agents, there are few problems of safety and discoloration due to elution of metal ions, but when added to resin, there are some problems in dispersibility, and therefore problems with the antibacterial activity of the molded product remain. ..
【０００５】[0005]
【発明が解決しようとする課題】上記したように、抗菌
性金属イオンを用いた従来の無機系の抗菌剤では、まだ
金属イオンの水への溶出、変色、樹脂への分散性などに
なんらかの問題が残されており、使用法、使用範囲が狭
められている。このような無機系抗菌剤の欠点を改善
し、金属イオンの水への溶出、変色がなく、樹脂への分
散のよい無機系抗菌剤を提供することを本発明は課題と
している。As described above, conventional inorganic antibacterial agents using antibacterial metal ions still have some problems in elution of metal ions into water, discoloration, dispersibility in resin, etc. Is left, and the usage and range of use are narrowed. It is an object of the present invention to improve the drawbacks of such an inorganic antibacterial agent and to provide an inorganic antibacterial agent which is free from elution and discoloration of metal ions in water and is well dispersed in a resin.
【０００６】[0006]
【課題を解決するための手段】前記したようにゼオライ
ト、ガラス、リン酸カルシウムの担体に抗菌性金属イオ
ンを担持させた無機系抗菌剤は安全性が高く、使用しや
すい抗菌剤であるが、金属イオンの溶出、そのために起
こる原体及び添加した樹脂などの変色、担体の性質上か
ら起こる樹脂への分散性、そのための樹脂成形体の抗菌
力低下等の問題がある。そこでこれらの問題を解決すべ
く検討を重ねた結果、抗菌性金属イオンを担持し、金属
イオンの溶出が少なく、変色が起こらず、その上樹脂へ
の分散性が良いので樹脂成形体において抗菌力を最大に
発揮できる無機系抗菌剤である、金属イオンを担持させ
た抗菌性タルク組成物を開発することができた。タルク
は、滑石とも呼ばれ、３MgO ・４SiO2・H20 或はMg3H
2(SiO3)4で示される含水ケイ酸マグネシウムを主成分と
し、時には少量のケイ酸アルミニウムを含み、従来より
樹脂成形時の充填剤；吸収剤、散布剤として皮膚の炎症
に用いる医薬品；化粧用材；減摩剤その他に広く使用さ
れている物質である。本発明で提供する抗菌性タルク組
成物は、このタルクに抗菌性金属イオンを吸着により、
或はそのMgの一部を抗菌性金属イオンで置換させて、抗
菌性金属イオンを担持させてえられた抗菌性タルク組成
物である。又、この抗菌性金属イオンを担持した抗菌性
タルクを８７０℃以上で焼成することにより、抗菌性金
属イオン又は／及び金属を担持した無水の抗菌性タルク
組成物が得られる。[Means for Solving the Problems] As described above, an inorganic antibacterial agent in which an antibacterial metal ion is supported on a carrier of zeolite, glass or calcium phosphate is an antibacterial agent having high safety and easy to use. And the discoloration of the raw material and the added resin, the dispersibility in the resin due to the nature of the carrier, and the decrease in the antibacterial activity of the resin molded product. Therefore, as a result of repeated studies to solve these problems, antibacterial metal ions are supported, the elution of metal ions is small, discoloration does not occur, and the dispersibility in the resin is good, so the antibacterial activity in the resin molding is good. It was possible to develop an antibacterial talc composition carrying metal ions, which is an inorganic antibacterial agent capable of maximally exerting the above. Talc is also called talc, and 3MgO.4SiO 2 .H 2 0 or Mg 3 H
2 (SiO 3 ) 4 containing hydrous magnesium silicate as a main component, and sometimes containing a small amount of aluminum silicate, a filler used for resin molding from the past; a medicine used as an absorbent or dusting agent for skin inflammation; cosmetics Materials: widely used substances such as anti-friction agents. The antibacterial talc composition provided by the present invention is obtained by adsorbing an antibacterial metal ion to this talc,
Alternatively, it is an antibacterial talc composition obtained by substituting a part of Mg with an antibacterial metal ion and supporting an antibacterial metal ion. Further, by baking the antibacterial talc carrying the antibacterial metal ion at 870 ° C. or higher, an anhydrous antibacterial talc composition carrying the antibacterial metal ion and / or the metal can be obtained.
【０００７】抗菌性金属イオン又は金属として、従来よ
り微量殺菌作用を有すると認められている金属又はその
イオンであればいかなるものでも使用可能であるが、本
発明で使用される金属イオン又は金属はそれら金属イオ
ン又は金属のうち銀、銅、亜鉛、錫、鉛、ヒ素及びコバ
ルトからなる少くとも１種の金属イオン又は金属であ
り、実用的に特に、銀、銅及び亜鉛の金属イオン又は金
属の使用が好適である。As the antibacterial metal ion or metal, any metal or an ion thereof which has been conventionally recognized as having a microbiocidal action can be used, but the metal ion or metal used in the present invention is Of those metal ions or metals, it is at least one metal ion or metal consisting of silver, copper, zinc, tin, lead, arsenic and cobalt, and practically, in particular, metal ions or metals of silver, copper and zinc. Use is preferred.
【０００８】抗菌性タルクはタルクに抗菌性金属の水溶
性塩を共存させることにより容易にえることができる。
即ち抗菌性金属の硫酸塩、硝酸塩、あるいは金属錯体を
含有する溶液中にタルクを懸濁させて、常温ないし加温
下において接触処理を行ない、生成物を常法により水
洗、乾燥し、場合により焼成し、焼成により酸化マグネ
シウムが不足する場合には酸化マグネシウムを添加して
焼成し、必要に応じてこれらを粉砕して目的物を得るこ
とができる。タルクに担持させる金属イオン又は／及び
金属の量は飽和置換量、飽和吸着量以下であれば差しつ
かえないが、多量に担持させると金属イオンを多量に溶
出する場合があり、又充分な抗菌性を得るために、１５
〜0.００１％程度がよい。The antibacterial talc can be easily obtained by coexisting a water-soluble salt of an antibacterial metal with talc.
That is, talc is suspended in a solution containing an antibacterial metal sulfate, nitrate, or metal complex, contact treatment is carried out at room temperature or under heating, and the product is washed with water and dried by a conventional method. It is possible to obtain the intended product by calcining, and when magnesium oxide is insufficient due to calcining, magnesium oxide is added and calcined, and if necessary, these are ground. The amount of metal ions or / and metals supported on talc may be equal to or less than the saturated substitution amount and saturated adsorption amount, but if supported in a large amount, a large amount of metal ions may be eluted, and sufficient antibacterial properties may be obtained. To get 15
About 0.001% is preferable.
【０００９】このようにして得られた抗菌性タルクは金
属イオンを安定に担持し、変色もなく、長期間安全に使
用できる。又、タルクは従来より充填剤として樹脂等に
使用されており、本願の抗菌性タルクも同様に分散性良
く樹脂に添加できるため、それを充填剤として添加して
えられた樹脂成形品は、均質で高い抗菌力を発揮するこ
とができる。しかし、タルクは水を含有するため、添加
する材料によっては、例えばポリエステル繊維などへ添
加する際には、前処理として乾燥を必要とする場合があ
る。このような前処理工程をなくすために８７０℃以上
で焼成を行なうことにより、無水のタルクであるメタケ
イ酸マグネシウムMg0 ・SiO2に抗菌性金属を担持した組
成物を得ることができる。又、1,３６０〜1,４２０℃で
焼成することにより抗菌性のステアタイトを、酸化マグ
ネシウムを添加して焼成することにより抗菌性のフォル
ステライトを得ることができる。又、この場合のように
他材に添加することを考慮すると、使用するタルク粒子
径は小さいほうが良く、１０μｍ以下がよい。以下、実
施例を示して本発明を具体的に説明する。The antibacterial talc thus obtained carries metal ions stably, has no discoloration, and can be used safely for a long period of time. Further, talc has been conventionally used as a filler in resins and the like, and the antibacterial talc of the present invention can also be added to a resin with good dispersibility. Therefore, a resin molded product obtained by adding it as a filler is It is homogeneous and can exert high antibacterial activity. However, since talc contains water, depending on the material to be added, it may be necessary to perform drying as a pretreatment when adding it to, for example, polyester fiber. By firing at 870 ° C. or higher in order to eliminate such a pretreatment step, a composition in which an antibacterial metal is supported on anhydrous talc magnesium metasilicate Mg 0 .SiO 2 can be obtained. Further, antibacterial steatite can be obtained by baking at 1,360 to 1,420 ° C., and antibacterial forsterite can be obtained by adding magnesium oxide and baking. Further, in consideration of addition to other materials as in this case, the talc particle diameter used is preferably small and 10 μm or less. Hereinafter, the present invention will be specifically described with reference to examples.
【００１０】[0010]
【実施例１】蒸留水５０ml中に硝酸銀0.２mgを溶解した
水溶液中に、タルクを１０ｇ加えて攪拌する。生成物を
蒸留水で洗浄、ロ過し、乾燥して銀を約0.００１重量％
担持した粉末を得た。Example 1 10 g of talc was added to an aqueous solution prepared by dissolving 0.2 mg of silver nitrate in 50 ml of distilled water and stirred. The product is washed with distilled water, filtered and dried to give about 0.001% by weight of silver.
A supported powder was obtained.
【００１１】[0011]
【実施例２】蒸留水５０ml中にヒ酸水素二ナトリウム５
mgを溶解した水溶液中に、タルクを１０ｇ加えて攪拌す
る。生成物を蒸留水で洗浄、ロ過し、乾燥してヒ素を約
0.０１重量％担持した粉末を得た。Example 2 Disodium hydrogen arsenate 5 in 50 ml distilled water
10 g of talc is added to an aqueous solution in which mg is dissolved, and the mixture is stirred. Wash the product with distilled water, filter and dry to remove arsenic.
A powder supporting 0.01% by weight was obtained.
【００１２】[0012]
【実施例３】蒸留水５０ml中に硝酸銀２０mgを溶解した
水溶液中に、タルクを１０ｇ加えて攪拌する。生成物を
蒸留水で洗浄、ロ過し、乾燥して銀を約0.１重量％担持
した粉末を得た。Example 3 10 g of talc was added to an aqueous solution prepared by dissolving 20 mg of silver nitrate in 50 ml of distilled water and stirred. The product was washed with distilled water, filtered, and dried to obtain a powder carrying about 0.1% by weight of silver.
【００１３】[0013]
【実施例４】蒸留水５０ml中に塩化第一錫0.１８ｇを溶
解した水溶液中に、タルクを１０ｇ加えて攪拌する。生
成物を蒸留水で洗浄、ロ過し、乾燥して錫を約１重量％
担持した粉末を得た。Example 4 10 g of talc was added to an aqueous solution prepared by dissolving 0.18 g of stannous chloride in 50 ml of distilled water and stirred. The product is washed with distilled water, filtered and dried to give about 1% tin by weight.
A supported powder was obtained.
【００１４】[0014]
【実施例５】蒸留水５０ml中に塩化コバルト0.８ｇを溶
解した水溶液中に、タルクを１０ｇ加えて攪拌する。生
成物を蒸留水で洗浄、ロ過し、乾燥してコバルトを約３
重量％担持した粉末を得た。Example 5 10 g of talc was added to an aqueous solution prepared by dissolving 0.8 g of cobalt chloride in 50 ml of distilled water and stirred. The product is washed with distilled water, filtered, and dried to remove cobalt to about 3
A powder supporting wt% was obtained.
【００１５】[0015]
【実施例６】蒸留水５０ml中に硫酸銅1.５ｇを溶解した
水溶液中に、タルクを１０ｇ加えて攪拌する。生成物を
蒸留水で洗浄、ロ過し、乾燥して銅を約５重量％担持し
た粉末を得た。Example 6 10 g of talc was added to an aqueous solution prepared by dissolving 1.5 g of copper sulfate in 50 ml of distilled water and stirred. The product was washed with distilled water, filtered, and dried to obtain a powder carrying about 5% by weight of copper.
【００１６】[0016]
【実施例７】蒸留水５０ml中に硝酸鉛1.８ｇを溶解した
水溶液中に、タルクを１０ｇ加えて攪拌する。生成物を
蒸留水で洗浄、ロ過し、乾燥して鉛を約１０重量％担持
した粉末を得た。Example 7 10 g of talc was added to an aqueous solution prepared by dissolving 1.8 g of lead nitrate in 50 ml of distilled water and stirred. The product was washed with distilled water, filtered, and dried to obtain a powder carrying about 10% by weight of lead.
【００１７】[0017]
【実施例８】蒸留水５０ml中に硝酸亜鉛７ｇを溶解した
水溶液中にタルクを１０ｇ加えて攪拌する。生成物を蒸
留水で洗浄、ロ過し、乾燥して亜鉛を約１５重量％担持
した粉末を得た。Example 8 10 g of talc was added to an aqueous solution in which 7 g of zinc nitrate was dissolved in 50 ml of distilled water, and the mixture was stirred. The product was washed with distilled water, filtered, and dried to obtain a powder carrying about 15% by weight of zinc.
【００１８】[0018]
【実施例９】 抗菌力試験 実施例１）〜８）の試料を１％加えたリン酸緩衝生理食
塩水に、大腸菌を添加して、大腸菌に対する抗菌力を測
定し、表１の結果をえた。Example 9 Antibacterial Activity Test Escherichia coli was added to phosphate buffered saline containing 1% of the samples of Examples 1) to 8) to measure the antibacterial activity against Escherichia coli, and the results shown in Table 1 were obtained. ..
【００１９】[0019]
【表１】 [Table 1]
【００２０】[0020]
【実施例１０】 金属溶出試験 実施例１）〜８）で作成した粉末それぞれ１ｇづつを蒸
留水１００ml中に添加し、１時間攪拌したとき抗菌性金
属の溶出量はいずれも0.２ppm以下であった。Example 10 Metal Elution Test When 1 g of each of the powders prepared in Examples 1) to 8) was added to 100 ml of distilled water and stirred for 1 hour, the elution amount of the antibacterial metal was 0.2 ppm or less. there were.
【００２１】[0021]
【実施例１１】 例１）で得た粉末を約1,０００℃、例２）で得た粉末を
約９００℃、例３）で得た粉末を約1,２００℃、例４）
で得た粉末を約９００℃、例５）で得た粉末を約1,４０
０℃、例６）〜例８）で得た粉末をそれぞれ約９００℃
で焼成し、無水タルクの抗菌剤を得た。これらの抗菌性
無水タルクについて（実施例９）と同様の抗菌力試験を
行なった結果、（実施例９）と同様に２４時間後の菌数
がいずれも＜１となった。又、金属溶出試験において
も、（実施例１０）と同様に金属の溶出量は何れも0.２
ppm 以下であった。Example 11 The powder obtained in Example 1) was about 1,000 ° C., the powder obtained in Example 2) was about 900 ° C., the powder obtained in Example 3) was about 1,200 ° C., Example 4)
The powder obtained in Example 5) at about 900 ° C.
0 ° C., about 900 ° C. for each of the powders obtained in Examples 6) to 8)
Then, the mixture was calcined to obtain anhydrous talc antibacterial agent. The antibacterial anhydrous talc was subjected to the same antibacterial activity test as in (Example 9). As a result, the number of bacteria after 24 hours was <1 as in (Example 9). Also, in the metal elution test, the elution amount of the metal was 0.2 in the same manner as (Example 10).
It was below ppm.
【００２２】[0022]
【発明の効果】タルクは日本薬局法、食品添加物公走書
に収載され、樹脂の充填剤としても従来から用いられて
いる物質であり、広範囲な分野に安全に使用されてい
る。本発明はそのタルクに抗菌性金属イオン又は／及び
金属を担持させてえられたものであり、抗菌性金属イオ
ンが水に接しても溶出することがないので、抗菌性金属
イオン溶出による各種の不都合を発生することがなく、
タルクと全く同様に使用することができる。従って抗菌
性を有するタルクとして広い分野で使用することが可能
である。また抗菌性金属イオン又は／及び金属を担持し
た無水のタルクは、水分を嫌う物に対しても容易に添加
することが可能である。EFFECTS OF THE INVENTION Talc is a substance listed in the Japanese Pharmacopoeia Act, Food Additives Publication, and has been conventionally used as a filler for resins, and is safely used in a wide range of fields. The present invention is obtained by supporting antibacterial metal ions or / and metals on the talc, and since the antibacterial metal ions do not elute even if they come into contact with water, various antibacterial metal ion elutions can be performed. Without causing any inconvenience,
It can be used exactly like talc. Therefore, it can be used in a wide variety of fields as talc having antibacterial properties. In addition, anhydrous talc carrying antibacterial metal ions and / or metal can be easily added to a substance that does not like water.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ａ０１Ｎ 61/00 Ｂ 7106−4Ｈ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location A01N 61/00 B 7106-4H
Claims (5)
徴とする抗菌性タルク組成物。1. An antibacterial talc composition, which carries an antibacterial metal ion.
鉛、ヒ素及びコバルトから選ばれた少くとも１種の金属
イオンである請求項１の抗菌性タルク組成物。2. The antibacterial metal ion is silver, copper, zinc, tin,
The antibacterial talc composition of claim 1, which is at least one metal ion selected from lead, arsenic and cobalt.
し重量で0.００１〜１５％である請求項１又は２の抗菌
性タルク組成物。3. The antibacterial talc composition according to claim 1 or 2, wherein the amount of the antibacterial metal ion supported is 0.001 to 15% by weight with respect to talc.
る請求項１又は２の抗菌性タルク組成物。4. The antibacterial talc composition according to claim 1, which is baked at 870 ° C. or higher.
量がタルクに対し重量で0.００１〜１５％である請求項
４の抗菌性タルク組成物。5. The antibacterial talc composition according to claim 4, wherein the amount of the antibacterial metal ion or / and metal supported is 0.001 to 15% by weight with respect to talc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297692A JPH05112415A (en) | 1991-06-17 | 1992-02-26 | Antimicrobial talc composition |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17041991 | 1991-06-17 | ||
| JP3-170419 | 1991-06-17 | ||
| JP7297692A JPH05112415A (en) | 1991-06-17 | 1992-02-26 | Antimicrobial talc composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05112415A true JPH05112415A (en) | 1993-05-07 |
Family
ID=26414112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7297692A Pending JPH05112415A (en) | 1991-06-17 | 1992-02-26 | Antimicrobial talc composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05112415A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248893A (en) * | 2001-02-26 | 2002-09-03 | Ricoh Elemex Corp | Writing board device and cleaner liquid to be used therefor |
| JP2018531881A (en) * | 2015-08-14 | 2018-11-01 | イメリーズ ミネラルズ リミテッド | Inorganic particles containing antibacterial metals |
| JP2020195334A (en) * | 2019-06-03 | 2020-12-10 | 株式会社フォーエバー | Bacteria-removing food additive, and bacteria-removing food containing the same |
-
1992
- 1992-02-26 JP JP7297692A patent/JPH05112415A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248893A (en) * | 2001-02-26 | 2002-09-03 | Ricoh Elemex Corp | Writing board device and cleaner liquid to be used therefor |
| JP4562016B2 (en) * | 2001-02-26 | 2010-10-13 | リコーエレメックス株式会社 | Writing board device and cleaner liquid used therefor |
| JP2018531881A (en) * | 2015-08-14 | 2018-11-01 | イメリーズ ミネラルズ リミテッド | Inorganic particles containing antibacterial metals |
| US10736324B2 (en) | 2015-08-14 | 2020-08-11 | Imertech Sas | Inorganic particulate containing antimicrobial metal |
| JP2020195334A (en) * | 2019-06-03 | 2020-12-10 | 株式会社フォーエバー | Bacteria-removing food additive, and bacteria-removing food containing the same |
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