JP3355283B2 - Antibacterial / antifungal synthetic resin material and method for producing the same - Google Patents
Antibacterial / antifungal synthetic resin material and method for producing the sameInfo
- Publication number
- JP3355283B2 JP3355283B2 JP31687696A JP31687696A JP3355283B2 JP 3355283 B2 JP3355283 B2 JP 3355283B2 JP 31687696 A JP31687696 A JP 31687696A JP 31687696 A JP31687696 A JP 31687696A JP 3355283 B2 JP3355283 B2 JP 3355283B2
- Authority
- JP
- Japan
- Prior art keywords
- antibacterial
- synthetic resin
- antifungal
- basic
- additive
- 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.)
- Expired - Fee Related
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- Reinforced Plastic Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、抗菌・防カビ性合
成樹脂材料及びその製造方法に関し、さらに詳しくは、
合成樹脂基材に均一に又は表面付近に含有されている添
加剤のうち、表面に露出しているものを金属塩と反応さ
せて抗菌・防カビ性を有する物質に変換させることによ
る、合成樹脂基材へ抗菌・防カビ性を付与する方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin material having antibacterial and antifungal properties and a method for producing the same.
Among the additives uniformly or near the surface contained in the synthetic resin base material, the synthetic resin is obtained by reacting a material exposed on the surface with a metal salt to convert it into a substance having antibacterial and antifungal properties. The present invention relates to a method for imparting antibacterial and antifungal properties to a substrate.
【０００２】[0002]
【従来の技術】一般住宅やオフィス等におけるカビの問
題や、病院内感染など、屋内におけるカビや細菌の問題
は以前から存在していたが、これに対する効果的で簡易
な対処法はなかった。特に、人との接触頻度の高い部位
に使用されることの多いプラスチック製品類には、各種
添加剤が配合されており、それを栄養分としてカビや細
菌が繁殖し易く、不衛生になり易いという問題があっ
た。抗菌・防カビ性を合成樹脂基材に付与する方法とし
ては、有機系の防カビ剤を予め合成樹脂中に添加すると
いう方法がある。また、ゼオライトやシリカゲル等に抗
菌性金属や抗菌性金属化合物を担持させた無機系の抗菌
剤を合成樹脂に添加するという方法も周知である。2. Description of the Related Art There has been a problem of mold and bacteria in indoors such as general houses and offices and infections in hospitals, but there has been no effective and simple countermeasure for these problems. In particular, plastic products that are often used in areas with high frequency of contact with humans are mixed with various additives, and molds and bacteria are easily propagated as nutrients, and it is easy to become unsanitary. There was a problem. As a method for imparting antibacterial and antifungal properties to a synthetic resin substrate, there is a method of adding an organic antifungal agent to a synthetic resin in advance. Also, a method of adding an inorganic antibacterial agent in which an antibacterial metal or an antibacterial metal compound is supported on zeolite, silica gel, or the like is added to a synthetic resin.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、有機系
の防カビ剤を合成樹脂に添加する方法では、薬品が徐々
に放出されていくため、最終的には抗菌・防カビ性が失
われてしまう。また、有機系防カビ剤は一般に人体に対
しても有害なものが多く、特に人が日常的に接触する製
品や部品への使用はできるだけ避けることが望ましい。
一方、無機系の抗菌剤を添加する方法も、合成樹脂基材
表面で充分な抗菌・防カビ性を発揮させるためには、比
較的高価な抗菌剤を大量に配合する必要があり、製品価
格を著しく上昇させてしまうという問題がある。However, in the method of adding an organic fungicide to a synthetic resin, the chemical is gradually released, so that the antibacterial and antifungal properties are eventually lost. . In addition, many organic fungicides are generally harmful to the human body, and it is desirable to avoid using them on products and parts that come into contact with people on a daily basis.
On the other hand, the method of adding an inorganic antibacterial agent also requires the addition of a relatively expensive antibacterial agent in a large amount in order to exhibit sufficient antibacterial and antifungal properties on the surface of the synthetic resin substrate. There is a problem that is raised significantly.
【０００４】合成樹脂製品の抗菌・防カビ性は、その表
面に露出して存在する抗菌剤や防カビ剤によって発揮さ
れ、樹脂中に存在する抗菌剤や防カビ剤は殆ど抗菌・防
カビ性に寄与しておらず、無駄となっている。従って、
従来のように合成樹脂に抗菌剤や防カビ剤を添加する方
法では、添加した抗菌剤や防カビ剤を効果的に利用する
ことができず、そのため、充分な抗菌・防カビ性を発揮
させるためには、比較的高価な抗菌剤や防カビ剤を大量
に配合する必要がある。しかしながら、抗菌剤や防カビ
剤を合成樹脂に大量に配合した場合、製品価格を著しく
上昇させてしまうという問題に加えて、合成樹脂製品の
強度、柔軟性等の性質を損なうという問題もある。The antibacterial and antifungal properties of a synthetic resin product are exhibited by an antibacterial and antifungal agent that is exposed on the surface thereof, and the antibacterial and antifungal agents present in the resin hardly have antibacterial and antifungal properties. It does not contribute to and is wasted. Therefore,
In the conventional method of adding an antibacterial agent and a fungicide to a synthetic resin, the added antibacterial agent and the fungicide cannot be effectively used, and therefore, sufficient antibacterial and fungicide properties are exhibited. For this purpose, it is necessary to incorporate a relatively large amount of relatively expensive antibacterial and antifungal agents. However, when a large amount of an antibacterial agent or a fungicide is added to a synthetic resin, in addition to the problem that the product price is significantly increased, there is also a problem that properties such as strength and flexibility of the synthetic resin product are impaired.
【０００５】従って、本発明の基本的な目的は、合成樹
脂材料に、持続性の抗菌・防カビ効果を効率的に付与す
る方法を提供することにある。さらに本発明の目的は、
比較的に簡単な方法で、しかも低コストで抗菌・防カビ
性合成樹脂材料を製造できる方法を提供し、もって、抗
菌・防カビ性塩化ビニル樹脂製ガスケットなど、抗菌・
防カビ効果の持続性に優れた種々の合成樹脂製品もしく
は部品を安価に提供することにある。Accordingly, it is a basic object of the present invention to provide a method for efficiently imparting a persistent antibacterial and antifungal effect to a synthetic resin material. Further objects of the present invention are:
Providing a method that can produce antibacterial and mold-resistant synthetic resin materials in a relatively simple manner and at a low cost.
An object of the present invention is to provide inexpensively various synthetic resin products or parts having excellent durability of the antifungal effect.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に、本発明によれば、Ｃｕ、Ｚｎ、Ａｇ及び／又はＮｉ
の塩化物、硫酸塩、酢酸塩、硝酸塩及び／又は炭酸塩よ
りなる群から選ばれた金属塩と反応することによって抗
菌・防カビ性物質を生成するＡｌ、Ｍｇ及び／又はＣａ
の酸化物、水酸化物及び／又は炭酸塩よりなる群から選
ばれた添加剤が配合され、少なくともその一部が表面に
露出している合成樹脂基材を準備し、該合成樹脂基材の
表面に露出している上記添加剤を上記金属塩と反応させ
ることによって抗菌・防カビ性物質に変換することを特
徴とする抗菌・防カビ性合成樹脂材料の製造方法が提供
される。 According to the present invention, there is provided, according to the present invention, Cu, Zn, Ag and / or Ni.
Chloride, sulfate, acetate, nitrate and / or carbonate
Al, Mg and / or Ca that form antibacterial and antifungal substances by reacting with a metal salt selected from the group consisting of
Selected from the group consisting of oxides, hydroxides and / or carbonates of
Barre additives are blended, at least a part of preparing a synthetic resin substrate which is exposed to the surface, it is reacted with the metal salt of the above additives which are exposed on the surface of the synthetic resin base material method for producing an antibacterial and antifungal synthetic resin material and converting the antibacterial and antifungal material by the Ru is provided.
【０００７】さらに本発明によれば、前記のような方法
によって製造され、金属塩と反応することによって抗菌
・防カビ性物質を生成する添加剤を含有する合成樹脂基
材からなり、該合成樹脂基材の表面に上記添加剤から変
換された抗菌・防カビ性物質が露出していることを特徴
とする抗菌・防カビ性合成樹脂材料も提供される。好適
な態様によれば、上記抗菌・防カビ性物質は、Ｃｕ、Ｚ
ｎ、Ａｇ又はＮｉの水酸化物、塩基性塩化物、塩基性硫
酸化物、塩基性酢酸化物及び塩基性硝酸化物よりなる群
から選ばれた少なくとも１種である。Further, according to the present invention, there is provided a synthetic resin base material containing an additive produced by the above-described method and producing an antibacterial / antifungal substance by reacting with a metal salt. An antibacterial / antifungal synthetic resin material characterized in that an antibacterial / antifungal substance converted from the above additive is exposed on the surface of a substrate. According to a preferred embodiment, the antibacterial and antifungal substance is Cu, Z
It is at least one selected from the group consisting of hydroxides of n, Ag or Ni, basic chlorides, basic sulfates, basic acetates and basic nitrates.
【０００８】[0008]
【発明の実施の形態】本発明に従って合成樹脂基材へ抗
菌・防カビ性を付与する方法を、添付図面を参照しなが
ら以下に説明する。図１は、抗菌・防カビ性を付与する
処理を行う前の合成樹脂基材の概略断面を示している。
合成樹脂基材１には添加剤２が配合されており、その一
部が合成樹脂基材１の表面に露出している。添加剤とし
ては、金属塩と反応することによって抗菌・防カビ性物
質を生成することができるものであればよく、例えばＡ
ｌ、Ｍｇ、Ｃａ等の酸化物、水酸化物、炭酸塩などが挙
げられる。これらの中でも、炭酸カルシウムはプラスチ
ックの増量剤（充填剤）として広く用いられている安価
な添加剤である。DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for imparting antibacterial and antifungal properties to a synthetic resin substrate according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a schematic cross section of a synthetic resin base material before a process for imparting antibacterial and antifungal properties is performed.
The additive 2 is blended in the synthetic resin substrate 1, and a part of the additive 2 is exposed on the surface of the synthetic resin substrate 1. The additive may be any additive that can produce an antibacterial / antifungal substance by reacting with a metal salt.
and oxides, hydroxides, carbonates and the like of 1, Mg, Ca and the like. Among them, calcium carbonate is an inexpensive additive widely used as a filler (filler) for plastics.
【０００９】前記合成樹脂基材１には、次いで本発明に
従って抗菌・防カビ性を付与する処理を行う。処理後の
合成樹脂基材の概略断面を図２に示す。処理は、合成樹
脂基材１の表面に露出している添加剤２を金属塩と反応
させることによって行う。この反応によって、合成樹脂
基材１の表面に露出している添加剤２は抗菌・防カビ性
を有する物質３に変換され、合成樹脂基材に抗菌・防カ
ビ性が効率的に付与される。処理方法としては、合成樹
脂基材表面に金属塩を直接接触させる方法、合成樹脂基
材を金属塩水溶液中に浸漬する方法、合成樹脂基材表面
に金属塩水溶液を塗布又は噴霧する方法など、被処理物
の形状等に応じて任意の方法を採用できる。Next, the synthetic resin substrate 1 is subjected to a treatment for imparting antibacterial and antifungal properties according to the present invention. FIG. 2 shows a schematic cross section of the synthetic resin substrate after the treatment. The treatment is performed by reacting the additive 2 exposed on the surface of the synthetic resin substrate 1 with a metal salt. By this reaction, the additive 2 exposed on the surface of the synthetic resin substrate 1 is converted into a substance 3 having antibacterial and antifungal properties, and the antibacterial and antifungal properties are efficiently imparted to the synthetic resin base material. . As a treatment method, a method of directly contacting a metal salt on a synthetic resin substrate surface, a method of immersing the synthetic resin substrate in a metal salt aqueous solution, a method of applying or spraying a metal salt aqueous solution on the synthetic resin substrate surface, Any method can be adopted according to the shape of the object to be processed.
【００１０】添加剤と反応させる金属塩としては、抗菌
・防カビ性を示す金属、例えばＣｕ、Ｚｎ、Ａｇ、Ｎｉ
等の塩化物、硫酸塩、酢酸塩、硝酸塩、炭酸塩などが挙
げられる。このような金属塩と前記したような添加剤を
組み合わせて用いることにより、合成樹脂基材表面に抗
菌・防カビ性物質、例えばＣｕ、Ｚｎ、Ａｇ、Ｎｉ等の
水酸化物、塩基性塩化物、塩基性硫酸化物、塩基性酢酸
化物、塩基性硝酸化物などが生成する。これらの物質
は、水に難溶であることから、抗菌・防カビ効果が長く
持続される。As the metal salt to be reacted with the additive, a metal exhibiting antibacterial and antifungal properties, for example, Cu, Zn, Ag, Ni
Chloride, sulfate, acetate, nitrate, carbonate and the like. By using such a metal salt in combination with the above-described additive, an antibacterial / antifungal substance, for example, a hydroxide such as Cu, Zn, Ag, or Ni, or a basic chloride is formed on the surface of the synthetic resin substrate. , Basic sulfates, basic acetates, basic nitrates and the like are produced. Since these substances are hardly soluble in water, their antibacterial and antifungal effects are maintained for a long time.
【００１１】合成樹脂基材としては、熱硬化性樹脂、熱
可塑性樹脂、ゴムなど種々の材料を用いることができ、
特定のものに限定されるものではない。また、前記した
ような添加剤をブレンドした合成樹脂材料が押出成形、
射出成形、加圧成形等によって成形された合成樹脂製品
又は部品に本発明の方法を適用することにより、極めて
簡単な処理により合成樹脂成形品に抗菌・防カビ性を付
与することができる。例えば、市販の塩化ビニル樹脂製
のシートやガスケットなどには既に炭酸カルシウムや水
酸化アルミニウムなどの添加剤（充填剤）が含有されて
いるので、これを前記した金属塩の水溶液、例えば塩化
銅水溶液で処理することにより、表面に露出している添
加剤が前記した抗菌・防カビ性物質、例えば抗菌・防カ
ビ性の塩基性塩化銅に変換される。処理後の製品は、抗
菌・防カビ性の塩化ビニル樹脂シート又はガスケットと
して用いることができる。As the synthetic resin base material, various materials such as thermosetting resin, thermoplastic resin, and rubber can be used.
It is not limited to a specific one. In addition, the synthetic resin material blended with the additives as described above is extruded,
By applying the method of the present invention to a synthetic resin product or part molded by injection molding, pressure molding, or the like, antibacterial and antifungal properties can be imparted to the synthetic resin molded product by a very simple treatment. For example, since a commercially available sheet or gasket made of a vinyl chloride resin already contains an additive (filler) such as calcium carbonate or aluminum hydroxide, an aqueous solution of the above-described metal salt, for example, an aqueous solution of copper chloride is used. The additive exposed on the surface is converted into the above-mentioned antibacterial / antifungal substance, for example, antibacterial / antifungal basic copper chloride. The treated product can be used as a vinyl chloride resin sheet or gasket having antibacterial and antifungal properties.
【００１２】合成樹脂材料に配合される添加剤の混合量
は、合成樹脂材料に対して０．５〜１００体積％（ここ
で１００体積％は添加剤の体積と合成樹脂材料の体積が
等しいことに相当する。）、好ましくは１〜２０体積％
が適当である。１体積％よりも少なくなると、表面に露
出する添加剤の量が減少することにより、表面に生成す
る抗菌・防カビ性物質の量が減少し、充分な抗菌・防黴
性が得られ難くなる。一方、１００体積％を超えると、
抗菌・防黴性の発揮に関しては問題ないが、機械的性質
が著しく低下する。使用する添加剤の粒径は、０．１μ
ｍ〜１０μｍ、好ましくは１μｍ〜５μｍが適当であ
る。粒径が０．１μｍより小さくなると、粒径が小さ過
ぎて取り扱いが困難であったり、分散性が悪くなるとい
う問題も生じてくる。一方、粒径が大きくなり過ぎる
と、材料表面に大きな粒子が存在することになり、表面
の滑らかさが失われ、材料表面に露出した粒子が脱落し
易くなる。The amount of the additive to be mixed with the synthetic resin material is 0.5 to 100% by volume relative to the synthetic resin material (where 100% by volume is that the volume of the additive is equal to the volume of the synthetic resin material). ), Preferably 1 to 20% by volume
Is appropriate. When the amount is less than 1% by volume, the amount of the additive exposed on the surface is reduced, and the amount of the antibacterial and antifungal substances generated on the surface is reduced, and it is difficult to obtain sufficient antibacterial and antifungal properties. . On the other hand, if it exceeds 100% by volume,
Although there is no problem in exhibiting antibacterial and antifungal properties, mechanical properties are significantly reduced. The particle size of the additive used is 0.1μ
m to 10 μm, preferably 1 μm to 5 μm. When the particle size is smaller than 0.1 μm, there arises a problem that the particle size is too small to be easily handled and dispersibility is deteriorated. On the other hand, if the particle size is too large, large particles will be present on the material surface, the smoothness of the surface will be lost, and the particles exposed on the material surface will easily fall off.
【００１３】また、合成樹脂材料中に添加剤を分散させ
る態様としては、前記図１に示す均一な分散態様の他
に、添加剤を合成樹脂基材の少なくとも一方の表面に向
かって多くなるように混在させたり、あるいは、添加剤
が分散した合成樹脂材料からなる層と上記添加剤が分散
していない合成樹脂材料からなる層の二層構造とするこ
とにより、基材の表層部には充分な量の添加剤が存在す
るが、内部にはできるだけ存在しないようにして配合量
を減らし、また添加剤を多量に配合した時の材料の伸び
や強度等の機械的性質の低下をかなり防止することがで
きる。このような二層構造の合成樹脂材料を製造する方
法としては、例えば予め合成樹脂材料に適量の添加剤を
混合し、充分混練したものを表層材とし、この表層材
と、内層材を構成する合成樹脂材料を同時に共押出しす
ることにより、添加剤が分散した表層材が内層材表面に
強固に接合した二層構造の合成樹脂材料とすることがで
きる。また、射出成形やプレス成形では、金型のキャビ
ティ内壁面に前記添加剤や合成樹脂材料に添加剤を練り
込んだフィルムを予め塗布もしくは貼着しておき、そこ
に合成樹脂材料を射出したり、充填してプレスすること
によっても、表面層に添加剤が分散した合成樹脂材料が
得られる。In addition to the uniform dispersion mode shown in FIG. 1, the additive may be dispersed in the synthetic resin material such that the additive is increased toward at least one surface of the synthetic resin base material. Or a two-layer structure consisting of a layer made of a synthetic resin material in which the additives are dispersed and a layer made of a synthetic resin material in which the additives are not dispersed, so that the surface layer portion of the base material is sufficient. Although a large amount of additives is present, the amount of additives is reduced as much as possible in the interior, and the mechanical properties such as elongation and strength of the material when a large amount of additives are blended are significantly prevented from decreasing. be able to. As a method of manufacturing such a synthetic resin material having a two-layer structure, for example, an appropriate amount of an additive is mixed in advance with the synthetic resin material, and a sufficiently kneaded mixture is used as a surface material, and the surface material and the inner layer material are formed. By simultaneously extruding the synthetic resin material, it is possible to obtain a two-layer synthetic resin material in which the surface material in which the additives are dispersed is firmly bonded to the inner layer material surface. In addition, in injection molding or press molding, a film in which the additive or the synthetic resin material is kneaded with the additive is applied or pasted on the inner wall surface of the mold cavity, and the synthetic resin material is injected there. Also, by filling and pressing, a synthetic resin material in which additives are dispersed in the surface layer can be obtained.
【００１４】本発明の方法において、金属塩による処理
の条件は、用いる合成樹脂基材の種類等によって適宜選
定すればよい。一般に、添加剤と金属塩の反応を促進す
るためには、加熱した金属塩水溶液を用いることが好ま
しいが、合成樹脂基材、特にゴム系基材の熱劣化等を考
慮すると、使用する金属塩水溶液の温度は１３０℃以
下、処理時間は５時間以下が適当であり、さらに好まし
くは、金属塩水溶液の温度は９０℃以下、処理時間は２
時間以下が適当である。また、金属塩水溶液の濃度は、
合成樹脂基材表面の外観、平滑性等を劣化させないよう
に３モル／リットル以下、好ましくは１モル／リットル
以下であり、また、反応速度を低下させないように０．
０１モル／リットル以上、好ましくは０．１モル／リッ
トル以上に調整することが望ましい。さらに、添加剤と
金属塩の組合せも用いる合成樹脂に応じて適宜選定でき
る。In the method of the present invention, the conditions for the treatment with the metal salt may be appropriately selected depending on the type of the synthetic resin substrate used and the like. Generally, in order to promote the reaction between the additive and the metal salt, it is preferable to use a heated metal salt aqueous solution. However, in consideration of the thermal deterioration of the synthetic resin base material, particularly the rubber base material, the metal salt used is preferably used. The temperature of the aqueous solution is suitably 130 ° C. or less, and the treatment time is suitably 5 hours or less. More preferably, the temperature of the aqueous metal salt solution is 90 ° C. or less and the treatment time is 2 hours.
Less than hours is appropriate. The concentration of the metal salt aqueous solution is
The amount is 3 mol / l or less, preferably 1 mol / l or less, so as not to deteriorate the appearance, smoothness, etc. of the surface of the synthetic resin base material.
It is desirably adjusted to at least 01 mol / l, preferably at least 0.1 mol / l. Further, a combination of an additive and a metal salt can be appropriately selected according to the synthetic resin used.
【００１５】本発明の方法は、カビの発生による黒ずみ
や雑菌の繁殖等を防止したい全ゆる合成樹脂製品や部品
に有利に適用することができ、また適用される製品形状
もシート状、繊維状、異形成形品など任意のものに適用
できる。例えば、窓枠用ガスケット等の軟質成形品、冷
蔵庫の扉、加湿器の水槽などの電気製品、すのこや風呂
樋、浴槽、洗面器、まな板、魚のショウケースなど水を
扱う場所で使用される製品、水道水の配管、建物の床仕
上げ材など、幅広い分野に応用できる。The method of the present invention can be advantageously applied to all synthetic resin products and parts for which it is desired to prevent darkening and the propagation of various germs due to the occurrence of mold, and the product to be applied can be in the form of a sheet or fiber. The present invention can be applied to arbitrary products such as irregularly shaped products. For example, soft molded products such as gaskets for window frames, electric appliances such as refrigerator doors, humidifier water tanks, products used in places where water is used, such as scales, bath gutters, bathtubs, washbasins, cutting boards, fish showcases, etc. It can be applied to a wide range of fields, such as pipes for tap water and floor finishing materials for buildings.
【００１６】[0016]
【実施例】以下、実施例及び比較例を示して本発明の効
果について具体的に説明するが、本発明が下記実施例に
限定されるものでないことはもとよりである。EXAMPLES Hereinafter, the effects of the present invention will be specifically described with reference to examples and comparative examples. However, it goes without saying that the present invention is not limited to the following examples.
【００１７】実施例１ 炭酸カルシウム２０重量％を含む塩化ビニル樹脂をロー
ル混練機にて混練し、その後プレス成形を行い、１５０
ｍｍ×１５０ｍｍ、厚さ１ｍｍの炭酸カルシウム配合塩
化ビニル樹脂シートを作製した。上記の炭酸カルシウム
配合塩化ビニル樹脂シートを７０℃に加熱した塩化銅水
溶液中に３０分間浸漬し、表面に抗菌・防カビ性物質を
生成させた。Example 1 A vinyl chloride resin containing 20% by weight of calcium carbonate was kneaded by a roll kneader, and then press-molded to obtain
A calcium chloride-containing vinyl chloride resin sheet having a size of 150 mm × 150 mm and a thickness of 1 mm was prepared. The above vinyl chloride resin sheet containing calcium carbonate was immersed in an aqueous copper chloride solution heated to 70 ° C. for 30 minutes to form an antibacterial / antifungal substance on the surface.
【００１８】比較例１ 実施例１で作製した炭酸カルシウム配合塩化ビニル樹脂
シートで、７０℃塩化銅水溶液への浸漬を行わなかった
ものを比較材として用いた。 比較例２ 炭酸カルシウムを配合しないこと以外は実施例１と同じ
ように処理した塩化ビニル樹脂シートを比較材として用
いた。 比較例３ 比較例２と同じ炭酸カルシウムを配合しない塩化ビニル
樹脂シートで、７０℃塩化銅水溶液への浸漬を行わなか
ったものを比較材として用いた。Comparative Example 1 A vinyl chloride resin sheet containing calcium carbonate prepared in Example 1, which was not immersed in an aqueous solution of copper chloride at 70 ° C., was used as a comparative material. Comparative Example 2 A vinyl chloride resin sheet treated in the same manner as in Example 1 except that calcium carbonate was not blended was used as a comparative material. Comparative Example 3 The same vinyl chloride resin sheet as in Comparative Example 2 but not containing calcium carbonate, which was not immersed in an aqueous copper chloride solution at 70 ° C., was used as a comparative material.
【００１９】実施例１で作製した抗菌・防カビ性塩化ビ
ニル樹脂シートと、比較例１〜３で作製した塩化ビニル
樹脂シートに対し、以下のように抗菌・防カビ性試験を
実施した。 抗菌性試験：前記実施例１及び比較例１〜３で作製した
各塩化ビニル樹脂シート上に、２×１０4 個／１５０μ
ｌの割合で大腸菌を分散させた蒸留水１５０μｌを滴下
し、温度２５℃、湿度７０％の条件下で２４時間保持し
た。２４時間経過後、菌液を滅菌ガーゼで回収し、これ
を生理食塩水１０ｍｌに分散させ、該生理食塩水から１
００μｌを採取し、寒天培地に接種、３６℃で２４時間
培養した後、生成したコロニー数から生存菌数を算出し
た。 防カビ性試験：ＪＩＳ Ａ ５７５６の６．１４項に規
定される方法に基づき、前記実施例１と比較例１〜３で
作製された塩化ビニル樹脂シートに対して防カビ性試験
を実施した。 上記試験の結果を表１に示す。The antibacterial and antifungal properties of the vinyl chloride resin sheets produced in Example 1 and Comparative Examples 1 to 3 were tested as follows. Antibacterial test: 2 × 10 4 pieces / 150 μm on each vinyl chloride resin sheet prepared in Example 1 and Comparative Examples 1 to 3.
150 μl of distilled water in which Escherichia coli was dispersed at a ratio of 1 was dropped, and the mixture was kept at a temperature of 25 ° C. and a humidity of 70% for 24 hours. After 24 hours, the bacterial solution was collected with sterile gauze, and this was dispersed in 10 ml of physiological saline.
00 μl was collected, inoculated on an agar medium, cultured at 36 ° C. for 24 hours, and the number of viable bacteria was calculated from the number of generated colonies. Mold resistance test: A mold resistance test was performed on the vinyl chloride resin sheets prepared in Example 1 and Comparative Examples 1 to 3 based on the method specified in Section 6.14 of JIS A 5756. Table 1 shows the results of the above test.
【００２０】[0020]
【表１】 表１から明らかなように、実施例１で作製した抗菌・防
カビ性塩化ビニル樹脂シートは良好な抗菌・防カビ性を
有していることが認められる。これに対して、比較例１
〜３の塩化ビニル樹脂シートは抗菌・防カビ性を有しな
いことが認められる。このことから、合成樹脂（塩化ビ
ニル樹脂）基材に配合された添加剤と金属塩が反応し、
基材表面に抗菌・防カビ性を有する物質が生成したこと
により、合成樹脂基材に抗菌・防カビ性が付与されたこ
とが明らかである。[Table 1] As is clear from Table 1, the antibacterial and antifungal vinyl chloride resin sheet prepared in Example 1 has good antibacterial and antifungal properties. On the other hand, Comparative Example 1
It is recognized that the vinyl chloride resin sheets Nos. 1 to 3 do not have antibacterial and antifungal properties. From this, the additive mixed with the synthetic resin (vinyl chloride resin) base and the metal salt react,
It is clear that the formation of a substance having antibacterial and antifungal properties on the base material surface imparted antibacterial and antifungal properties to the synthetic resin base material.
【００２１】実施例２ 炭酸カルシウム２３重量％を含む塩化ビニルコンパウン
ド（組成：塩化ビニル樹脂＝３８重量％、可塑剤＝３７
重量％、炭酸カルシウム＝２３重量％、安定剤＝１重量
％、顔料＝１重量％）を押出成形して炭酸カルシウム配
合塩化ビニル樹脂ガスケットを作製した。上記の炭酸カ
ルシウム配合塩化ビニル樹脂ガスケットを、７０℃に加
熱した塩化銅水溶液中に３０分間浸漬し、表面に抗菌・
防カビ性物質を生成させ、抗菌・防カビ性塩化ビニル樹
脂ガスケットを作製した。また、塩化銅水溶液中での浸
漬を行わない、炭酸カルシウム配合塩化ビニル樹脂ガス
ケットを比較材として作製した。EXAMPLE 2 A vinyl chloride compound containing 23% by weight of calcium carbonate (composition: vinyl chloride resin = 38% by weight, plasticizer = 37%)
% By weight, calcium carbonate = 23% by weight, stabilizer = 1% by weight, and pigment = 1% by weight) to obtain a vinyl chloride resin gasket containing calcium carbonate. The above-mentioned vinyl chloride resin gasket containing calcium carbonate is immersed in an aqueous solution of copper chloride heated to 70 ° C. for 30 minutes, and the antibacterial and
A fungicidal substance was generated, and an antibacterial and fungicidal vinyl chloride resin gasket was produced. Further, a vinyl chloride resin gasket containing calcium carbonate, which was not immersed in an aqueous copper chloride solution, was produced as a comparative material.
【００２２】前記実施例２で作製した抗菌・防カビ性塩
化ビニル樹脂ガスケットと、比較のために作製した炭酸
カルシウム配合塩化ビニル樹脂ガスケットに対し、前記
と同様の抗菌・防カビ性試験を実施した。上記試験の結
果、実施例２で作製した抗菌・防カビ性塩化ビニル樹脂
ガスケットは前記実施例１と同様な良好な抗菌・防カビ
性を有していることが認められた。これに対して、比較
材は抗菌・防カビ性を有しないことが確認された。The same antibacterial and antifungal test was carried out on the antibacterial and antifungal vinyl chloride resin gasket prepared in Example 2 and the calcium carbonate-containing vinyl chloride resin gasket prepared for comparison. . As a result of the above test, it was confirmed that the antibacterial and antifungal vinyl chloride resin gasket prepared in Example 2 had the same good antibacterial and antifungal properties as in Example 1. On the other hand, it was confirmed that the comparative material did not have antibacterial and antifungal properties.
【００２３】[0023]
【発明の効果】以上のように、本発明の方法は、合成樹
脂基材に配合され、表面に露出している添加剤を金属塩
と反応させ、合成樹脂基材表面に抗菌・防カビ性を有す
る物質を生成させるものであるため、比較的簡単にしか
も効率的に合成樹脂基材へ抗菌・防カビ性を付与するこ
とができる。本発明の方法では、従来から製造されてい
る合成樹脂基材のうち、本発明で用いる金属塩との反応
が可能な添加剤を含むものであれば、新たに添加剤を加
えることなく、本発明により抗菌・防カビ性を付与する
ことができる。また、本発明で使用する添加剤や金属塩
は、有機系防カビ剤や無機系抗菌剤に比べて安価である
ことから、本発明によれば、従来の技術よりも安価に抗
菌・防カビ性の合成樹脂製品や部品を提供することがで
きる。As described above, according to the method of the present invention, an additive compounded on a synthetic resin substrate and exposed on the surface is reacted with a metal salt, and the surface of the synthetic resin substrate has antibacterial and antifungal properties. Therefore, antibacterial and antifungal properties can be imparted to the synthetic resin substrate relatively easily and efficiently. In the method of the present invention, if a synthetic resin substrate that has been conventionally produced contains an additive capable of reacting with the metal salt used in the present invention, the present invention can be carried out without newly adding an additive. According to the invention, antibacterial and antifungal properties can be imparted. In addition, the additives and metal salts used in the present invention are cheaper than organic fungicides and inorganic antibacterial agents. It is possible to provide synthetic resin products and parts having a high quality.
【図１】合成樹脂基材中に添加剤が分散されている状態
を示す部分拡大断面図である。FIG. 1 is a partially enlarged cross-sectional view showing a state in which an additive is dispersed in a synthetic resin base material.
【図２】合成樹脂基材中に分散されている添加剤のうち
表面に露出しているものが金属塩と反応し、抗菌・防カ
ビ性物質が合成樹脂基材表面に生成している状態を示す
部分拡大断面図である。FIG. 2 shows a state in which additives exposed on the surface among the additives dispersed in the synthetic resin base material react with the metal salt, and an antibacterial / antifungal substance is formed on the surface of the synthetic resin base material. FIG.
１ 合成樹脂基材 ２ 添加剤 ３ 抗菌・防カビ性物質 DESCRIPTION OF SYMBOLS 1 Synthetic resin base material 2 Additive 3 Antibacterial / antifungal substance
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−270764（ＪＰ，Ａ) 特開 平８−208854（ＪＰ，Ａ) 特開 平８−99812（ＪＰ，Ａ) 特開 平７−138384（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C08J 7/00 - 7/18 C08J 5/00 - 5/24 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-270764 (JP, A) JP-A-8-208854 (JP, A) JP-A-8-99812 (JP, A) JP-A-7-208 138384 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C08J 7 /00-7/18 C08J 5/00-5/24
Claims (6)
物、硫酸塩、酢酸塩、硝酸塩及び／又は炭酸塩よりなる
群から選ばれた金属塩と反応することによって抗菌・防
カビ性物質を生成するＡｌ、Ｍｇ及び／又はＣａの酸化
物、水酸化物及び／又は炭酸塩よりなる群から選ばれた
添加剤が配合され、少なくともその一部が表面に露出し
ている合成樹脂基材を準備し、該合成樹脂基材の表面に
露出している上記添加剤を上記金属塩と反応させること
によって抗菌・防カビ性物質に変換することを特徴とす
る抗菌・防カビ性合成樹脂材料の製造方法。1. Chlorination of Cu, Zn, Ag and / or Ni
Substances, sulfates, acetates, nitrates and / or carbonates
Oxidation of Al, Mg and / or Ca that produces antibacterial and antifungal substances by reacting with a metal salt selected from the group
An additive selected from the group consisting of a compound, a hydroxide, and / or a carbonate , and preparing a synthetic resin base material having at least a part thereof exposed on the surface; method for producing an antibacterial and antifungal synthetic resin material, characterized by converting the additive is exposed on the surface of the wood to the antibacterial and antifungal material by reacting with the metal salt.
している炭酸カルシウム及び／又は水酸化アルミニウム
をＣｕ、Ｚｎ、Ａｇ及び／又はＮｉの塩化物、硫酸塩、
酢酸塩、硝酸塩及び／又は炭酸塩と反応させ、塩化ビニ
ル樹脂表面に抗菌・防カビ性のＣｕ、Ｚｎ、Ａｇ又はＮ
ｉの水酸化物、塩基性塩化物、塩基性硫酸化物、塩基性
酢酸化物及び塩基性硝酸化物よりなる群から選ばれた少
なくとも１種を生成させることを特徴とする抗菌・防カ
ビ性塩化ビニル樹脂の製造方法。2. Calcium carbonate and / or aluminum hydroxide compounded in a vinyl chloride resin and exposed on the surface are converted into Cu, Zn, Ag and / or Ni chloride, sulfate,
Reacts with acetate, nitrate and / or carbonate to give antibacterial and antifungal Cu, Zn, Ag or N
(b) producing at least one selected from the group consisting of hydroxides, basic chlorides, basic sulfates, basic acetates, and basic nitrates of i. Method of manufacturing resin.
している炭酸カルシウム及び／又は水酸化アルミニウム
を塩化銅水溶液と反応させ、塩化ビニル樹脂表面に抗菌
・防カビ性の塩基性塩化銅を生成させることを特徴とす
る請求項２に記載の方法。3. A method of reacting calcium carbonate and / or aluminum hydroxide, which is blended with a vinyl chloride resin and exposed on the surface, with an aqueous solution of copper chloride to form an antibacterial and antifungal basic copper chloride on the surface of the vinyl chloride resin. 3. The method of claim 2 , wherein the method comprises generating.
物、硫酸塩、酢酸塩、硝酸塩及び／又は炭酸塩よりなる
群から選ばれた金属塩と反応することによって抗菌・防
カビ性物質を生成するＡｌ、Ｍｇ及び／又はＣａの酸化
物、水酸化物及び／又は炭酸塩よりなる群から選ばれた
添加剤を含有する合成樹脂基材からなり、該合成樹脂基
材の表面に上記添加剤から変換された抗菌・防カビ性物
質が露出していることを特徴とする抗菌・防カビ性合成
樹脂材料。4. Chloride of Cu, Zn, Ag and / or Ni
Substances, sulfates, acetates, nitrates and / or carbonates
Oxidation of Al, Mg and / or Ca that produces antibacterial and antifungal substances by reacting with a metal salt selected from the group
, A hydroxide and / or a carbonate, comprising an additive selected from the group consisting of a synthetic resin substrate, and the surface of the synthetic resin substrate having an antibacterial agent converted from the additive. An antibacterial / antifungal synthetic resin material characterized by exposing an antifungal substance.
ｎ、Ａｇ又はＮｉの水酸化物、塩基性塩化物、塩基性硫
酸化物、塩基性酢酸化物及び塩基性硝酸化物よりなる群
から選ばれた少なくとも１種である請求項４に記載の抗
菌・防カビ性合成樹脂材料。5. The antibacterial and antifungal substance is Cu, Z
The antibacterial and antibacterial composition according to claim 4 , which is at least one selected from the group consisting of hydroxides of n, Ag or Ni, basic chloride, basic sulfate, basic acetate and basic nitrate. Moldy synthetic resin material.
からなり、その表面に露出している粒子部分が塩基性塩
化銅からなる抗菌・防カビ性塩化ビニル樹脂製ガスケッ
トである請求項４に記載の抗菌・防カビ性合成樹脂材
料。 6. The synthetic resin base material is a vinyl chloride resin base material.
From it, antibacterial and antifungal synthetic resin material according to claim 4 which is an anti-bacterial and antifungal vinyl resin gasket chloride that Do particle portion from the basic copper chloride exposed on the surface of its
Fees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31687696A JP3355283B2 (en) | 1996-11-14 | 1996-11-14 | Antibacterial / antifungal synthetic resin material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31687696A JP3355283B2 (en) | 1996-11-14 | 1996-11-14 | Antibacterial / antifungal synthetic resin material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10139908A JPH10139908A (en) | 1998-05-26 |
| JP3355283B2 true JP3355283B2 (en) | 2002-12-09 |
Family
ID=18081906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31687696A Expired - Fee Related JP3355283B2 (en) | 1996-11-14 | 1996-11-14 | Antibacterial / antifungal synthetic resin material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3355283B2 (en) |
-
1996
- 1996-11-14 JP JP31687696A patent/JP3355283B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10139908A (en) | 1998-05-26 |
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