JPH0725635A - Flake-like glass having antimicrobial property - Google Patents
Flake-like glass having antimicrobial propertyInfo
- Publication number
- JPH0725635A JPH0725635A JP17034693A JP17034693A JPH0725635A JP H0725635 A JPH0725635 A JP H0725635A JP 17034693 A JP17034693 A JP 17034693A JP 17034693 A JP17034693 A JP 17034693A JP H0725635 A JPH0725635 A JP H0725635A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- flake
- antibacterial
- coating film
- strength
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/02—Antibacterial glass, glaze or enamel
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は抗菌性を有するフレーク
状ガラスに係り、特に、水処理施設、畜産施設、食品工
場、建材に塗装する塗料ないしライニング材やエアコン
等の樹脂成形体等の補強用充填材として用いることによ
り、当該箇所における細菌、カビ、藻類の発生及び繁殖
を有効に防止する抗菌性を有するフレーク状ガラスに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass flake having antibacterial properties, and particularly to reinforcing paints or lining materials applied to water treatment facilities, livestock facilities, food factories, building materials, and resin moldings such as air conditioners. The present invention relates to a flaky glass having an antibacterial property that effectively prevents the generation and reproduction of bacteria, molds and algae in the location by using it as a filling material.
【０００２】[0002]
【従来の技術】一価の銀イオン（Ａｇ+ ）（以下、単に
銀イオンと記すことがある。）は、微生物などの下等生
物に対して毒性を示すことが知られている。2. Description of the Related Art It is known that monovalent silver ions (Ag + ) (hereinafter sometimes simply referred to as silver ions) are toxic to lower organisms such as microorganisms.
【０００３】ここで、微生物（ｍｉｃｒｏｏｒｇａｎｉ
ｓｍ）とは、狭義には細菌（ｂａｃｔｅｒｉａ）、菌類
（ｆｕｎｇｉ）、ウイルス（ｖｉｒｕｓ）をいい、広義
にはさらに、原生動物（ｐｒｏｔｏｚｏａ）、藻類など
を含める。なお、本明細書においては、これらの微生物
に対する毒性作用（抗菌作用、防汚作用を含む）を「抗
菌作用」ということとする。Here, the microorganism (microorgani)
The sm) means bacteria, fungi, viruses in a narrow sense, and further includes protozoa and algae in a broad sense. In this specification, the toxic effect (including antibacterial effect and antifouling effect) on these microorganisms is referred to as “antibacterial effect”.
【０００４】銀イオンを含む物質として硝酸銀などがあ
るが、硝酸銀から得られる銀イオンは、容易に還元され
て銀（Ａｇ）となるので、抗菌作用が早期になくなると
いう欠点がある。抗菌効果を持続させるためには、水溶
液中（空気中の湿度を含む）において、銀イオンを安定
に存在させなければならないのであるが、ガラスの水溶
解性を利用して、ガラス中に含まれる銀イオンを徐々に
水中に溶出させることにより、上記抗菌作用を持続させ
る方法が、特開昭６２−２１００９８号公報、特開昭６
３−３５６９５号公報、特開昭６３−３９６９２号公
報、特開平１−１５３７４８号公報に開示されている。Although silver nitrate is a substance containing silver ions, silver ions obtained from silver nitrate are easily reduced to silver (Ag), which has a drawback that the antibacterial action is lost early. In order to maintain the antibacterial effect, silver ions must be stably present in an aqueous solution (including humidity in the air), but they are contained in glass by utilizing the water solubility of glass. A method of sustaining the above-mentioned antibacterial action by gradually dissolving silver ions in water is disclosed in JP-A-62-121098 and JP-A-6-20698.
It is disclosed in JP-A-3-35695, JP-A-63-39692 and JP-A-1-153748.
【０００５】また、本出願人の特許出願に係るものであ
るが、組成中に銀イオンを含む水溶性ガラスの粉粒状物
を合成樹脂塗料に混合させたものは特公平１−３１３５
７４号公報、特公平４−６８９３５号公報、特開平３−
１０４９８８号公報に開示されている。[0005] In addition, regarding the patent application of the present applicant, a method in which a powder of water-soluble glass containing silver ions in the composition is mixed with a synthetic resin coating is disclosed in Japanese Patent Publication No. 1-3135.
74, Japanese Patent Publication No. 4-68935, and Japanese Patent Laid-Open No. 3-1993.
It is disclosed in Japanese Patent Publication No. 104988.
【０００６】ところで、水処理施設、畜産施設の部材表
面をライニング或いはコーティングする際、ライニング
材料又はコーティング材料にフレーク状ガラスを含有さ
せることにより、その寿命を延長させ、クラックや剥離
を防止させることは知られており、広く実用化されてい
る。[0006] By the way, when lining or coating the surface of a member of a water treatment facility or a livestock facility, it is not possible to extend the life of the lining material or the coating material by containing flake-shaped glass to prevent cracks or peeling. It is known and widely used.
【０００７】[0007]
【発明が解決しようとする課題】上記従来の技術におい
て、銀イオンを含む水溶性ガラスの粉粒状物を合成樹脂
塗料に混合したものでは、銀イオンによる抗菌作用は得
られるものの、粉粒状物を使用しているため、塗膜の強
度や寿命が不十分であり、塗膜の強度、寿命を向上させ
るためには、塗膜の膜厚を厚くさせる必要があるという
不具合がある。In the above conventional technique, when the powdery particles of water-soluble glass containing silver ions are mixed with the synthetic resin paint, the antibacterial action by silver ions is obtained, but the powdery particles are Since it is used, the strength and life of the coating film are insufficient, and there is a problem that the thickness of the coating film needs to be increased in order to improve the strength and life of the coating film.
【０００８】一方、従来提供されているフレーク状ガラ
スでは、ライニング材料やコーティング材料に配合する
ことにより、得られる塗膜のクラックや剥離の防止を図
ることはできるが、従来のフレーク状ガラスは抗菌性を
有していないため、フレーク状ガラスの配合により抗菌
作用を得ることはできない。On the other hand, with the glass flakes provided so far, it is possible to prevent cracks and peeling of the coating film obtained by blending it with a lining material or a coating material, but conventional glass flakes are antibacterial. Since it has no properties, it is not possible to obtain an antibacterial effect by blending glass flakes.
【０００９】本発明は上記従来の問題点を解決し、樹脂
成形体原料、塗料等に配合することにより、得られる樹
脂成形体や塗膜等に殺菌性を付与すると共に、当該樹脂
成形体や塗膜等の強度向上、寿命延長、クラックや剥離
防止をも図ることができる抗菌性を有するフレーク状ガ
ラスを提供することを目的とする。The present invention solves the above-mentioned conventional problems and imparts sterilization properties to the obtained resin molded body, coating film, etc. by blending the resin molded body raw material, paint, etc. with the resin molded body, It is an object of the present invention to provide a glass flake having antibacterial properties, which can improve the strength of a coating film, extend the life of the coating film, and prevent cracks and peeling.
【００１０】[0010]
【課題を解決するための手段】本発明の抗菌性を有する
フレーク状ガラスは、一価の銀イオンを含有する鱗片状
ガラスよりなることを特徴とする。The flake-shaped glass having antibacterial properties of the present invention is characterized by being composed of glass flakes containing monovalent silver ions.
【００１１】以下に本発明を詳細に説明する。The present invention will be described in detail below.
【００１２】本発明で用いるガラスの原料成分として
は、Ｎａ2 Ｏ、ＳｉＯ2 、Ｂ2 Ｏ3 、Ａｌ2 Ｏ3 、Ｃａ
Ｏ、ＭｇＯを用い、これに一価の銀イオンを含有する化
合物、例えばＡｇＮＯ3 を添加してなるものが挙げられ
る。The raw materials for the glass used in the present invention include Na 2 O, SiO 2 , B 2 O 3 , Al 2 O 3 and Ca.
O and MgO are used, and a compound containing a monovalent silver ion, for example, AgNO 3 is added thereto.
【００１３】このようなＡｇ含有ガラスは、その成分組
成により、水溶解性のものと水不溶性のものとがある。
本発明において、フレーク状ガラス原料のＡｇ含有ガラ
スは水溶解性であっても水不溶性であっても良く、一般
に公知のガラス組成を採用することができるが、水溶解
性のＡｇ含有組成としては、Ｂ2 Ｏ3 を含有するものと
して、 ＳｉＯ2 ２０〜６０重量％ Ｂ2 Ｏ3 ３０〜７０重量％ Ｎａ2 Ｏ ５〜３５重量％ Ａｇ2 Ｏ（Ａｇ換算） ０．５〜 ３重量％ のものが好ましく用いられ、またＢ2 Ｏ3 を含有しない
ものとして、 ＳｉＯ2 ５５〜８０重量％ Ａｌ2 Ｏ3 ０．５〜３０重量％ Ｎａ2 Ｏ １９．５〜４２重量％ Ａｇ2 Ｏ（Ａｇ換算） ０．５〜 ３重量％ のものが好ましく用いられる。上記組成において、Ｎａ
2 Ｏの一部をＫ2 Ｏ及び／又はＣａＯで置換することに
より、Ａｇ濃度を増加させることができる。Such Ag-containing glasses are classified into water-soluble ones and water-insoluble ones depending on the component composition.
In the present invention, the Ag-containing glass as the flake-shaped glass raw material may be water-soluble or water-insoluble, and a generally known glass composition can be adopted, but as the water-soluble Ag-containing composition, , as containing B 2 O 3, SiO 2 20~60 wt% B 2 O 3 30 to 70 wt% Na 2 O 5 to 35 wt% Ag 2 O (Ag basis) of from 0.5 to 3 wt% Preferably used, and containing no B 2 O 3 , SiO 2 55-80 wt% Al 2 O 3 0.5-30 wt% Na 2 O 19.5-42 wt% Ag 2 O (Ag Conversion) 0.5 to 3% by weight is preferably used. In the above composition, Na
By replacing part of the 2 O in K 2 O and / or CaO, it is possible to increase the Ag concentration.
【００１４】なお、上記以外のその他の水溶解性ガラス
原料成分として、網目形成酸化物としてＰ2 Ｏ5 、網目
修飾酸化物としてＫ2 Ｏ、ＢａＯ、ＺｎＯ、中間体酸化
物としてＴｉＯ2 などを配合しても良い。Other water-soluble glass raw material components other than those mentioned above include P 2 O 5 as a network-forming oxide, K 2 O, BaO, ZnO as a network-modifying oxide, and TiO 2 as an intermediate oxide. You may mix.
【００１５】一方、水不溶性Ａｇ含有ガラス組成として
は、 ＳｉＯ2 ５６〜７３重量％ Ａｌ2 Ｏ3 １〜 ９重量％ Ｂ2 Ｏ3 ２〜１２重量％ Ｎａ2 Ｏ １０〜２０重量％ ＣａＯ ３〜 ８重量％ ＭｇＯ ０〜 ４重量％ Ａｇ2 Ｏ（Ａｇ換算） ０．５〜 ３重量％ のものが好ましく用いられる。On the other hand, as the glass composition containing water-insoluble Ag, SiO 2 56 to 73% by weight Al 2 O 31 to 9% by weight B 2 O 3 2 to 12% by weight Na 2 O 10 to 20% by weight CaO 3 to 8 wt% MgO 0 to 4 wt% Ag 2 O (Ag equivalent) 0.5 to 3 wt% are preferably used.
【００１６】本発明の抗菌性を有するフレーク状ガラス
は、前記水溶解性Ａｇ含有ガラス又は水不溶性Ａｇ含有
ガラスを用いて鱗片状ガラスを製造することにより得ら
れる。The antibacterial flake glass of the present invention can be obtained by producing a glass flake using the water-soluble Ag-containing glass or the water-insoluble Ag-containing glass.
【００１７】鱗片状のフレーク状ガラスの製造方法に
は、円筒ブロー法とゾルゲル法とがある。このうち、円
筒ブロー法は、ガラスを熔解炉の底部に設置した円形ス
リットから流下し、該円形スリットの内側に設けたエア
ーノズルから空気などの気体を吹き込んで、流下したガ
ラスを中空状に膨らませながら引っ張ることにより、ガ
ラスを風船化して、その厚みを薄くし、これを粉砕する
ことで鱗片状ガラス、即ちフレーク状ガラスを得るもの
である。As a method for producing the glass flakes, there are a cylinder blow method and a sol-gel method. Among them, in the cylindrical blow method, the glass is made to flow down from a circular slit installed at the bottom of the melting furnace, and a gas such as air is blown from an air nozzle provided inside the circular slit to expand the flowed glass into a hollow shape. While pulling, the glass is made into a balloon to reduce its thickness, and this is crushed to obtain glass flakes, that is, glass flakes.
【００１８】また、ゾルゲル法は、一価の銀イオンを含
有する化合物とガラス成分とでゲルをつくり、これを薄
膜状に引き延ばしたものを７５０〜１２００℃の範囲で
焼結することにより、鱗片状ガラス、即ちフレーク状ガ
ラスを得るものである。In the sol-gel method, a gel is prepared from a compound containing a monovalent silver ion and a glass component, and this is stretched into a thin film and sintered at a temperature of 750 to 1200 ° C. To obtain glass flakes, that is, glass flakes.
【００１９】本発明において、鱗片状ガラス（フレーク
状ガラス）の厚さは０．１〜２０μｍ、好ましくは０．
３〜１０μｍであることが望ましい。厚さが２０μｍを
超えるものであると、銀イオンの溶出速度が小さくな
り、また、０．１μｍ未満であると逆に全銀イオンの溶
出が早期に完了し、殺菌処理剤としての寿命が短くな
る。また、鱗片状ガラス（フレーク状ガラス）の粒径
は、１０〜１０００μｍ、好ましくは１０〜６００μｍ
であることが望ましい。この粒径が１０００μｍを超え
ると割れ易くなり、また、これ以上大きくしても充填材
としての機能上特に有効なことはなく、また１０μｍ未
満であると、これを配合して得られる樹脂成形体や塗膜
の強度や寿命の改善効果が低下する。In the present invention, the thickness of the glass flakes (flaky glass) is 0.1 to 20 μm, preferably 0.1.
It is preferably 3 to 10 μm. If the thickness is more than 20 μm, the elution rate of silver ions will be low, and if it is less than 0.1 μm, the elution of all silver ions will be completed earlier and the life as a bactericidal agent will be shorter. Become. The particle size of the glass flakes (flake glass) is 10 to 1000 μm, preferably 10 to 600 μm.
Is desirable. If this particle size exceeds 1000 μm, it becomes fragile, and if it is larger than this, it is not particularly effective in terms of the function as a filler. If it is less than 10 μm, a resin molded product obtained by blending this is obtained. And the effect of improving the strength and life of the coating film decreases.
【００２０】本発明において、水溶解性Ａｇ含有ガラス
又は水不溶性Ａｇ含有ガラスより得られる鱗片状ガラス
の抗菌性を有するフレーク状ガラスは、主に次のような
用途に好適に使用される。In the present invention, the flaky glass having the antibacterial property of the glass flakes obtained from the water-soluble Ag-containing glass or the water-insoluble Ag-containing glass is mainly suitably used for the following applications.
【００２１】 塗料及びライニング材料 例えば、抗菌性水処理施設塗料及びライニング材料、抗
菌性畜産施設塗料及びライニング材料、抗菌性医療施設
塗料及びライニング材料、抗菌性壁材塗料、抗菌性床材
塗料、抗菌性海洋構造物塗料、抗菌性船底塗料、抗菌性
漁網塗料など。Paints and lining materials For example, antibacterial water treatment facility paints and lining materials, antibacterial livestock facility paints and lining materials, antibacterial medical facility paints and lining materials, antibacterial wall material paints, antibacterial floor material paints, antibacterial materials Marine structure paint, antibacterial ship bottom paint, antibacterial fishing net paint, etc.
【００２２】 抗菌性樹脂成形体 例えばエアコン・冷蔵庫・掃除機等の家電製品、浴槽、
電話、建材シート、目地用シーリング剤など。なお、樹
脂成形体に用いる場合は、樹脂中に練り込む他、樹脂表
面に塗料として塗布する場合もある。Molded antibacterial resin, for example, home appliances such as air conditioners, refrigerators, vacuum cleaners, bathtubs,
Phones, building material sheets, joint sealants, etc. When it is used for a resin molded body, it may be applied as a paint on the resin surface in addition to being kneaded into the resin.
【００２３】[0023]
【作用】水溶解性Ａｇ含有フレーク状ガラスは、水溶液
又は含水溶液中で加水分解されることにより、ガラス成
分は溶液中に溶出され同時にガラス中の銀は銀イオン
（Ａｇ+ ）として確実に継続的に水中に溶出され、微生
物に対して育成阻止や抗菌作用を奏する。The water-soluble Ag-containing flake-shaped glass is hydrolyzed in an aqueous solution or an aqueous solution to elute the glass component into the solution, and at the same time, the silver in the glass surely continues as silver ions (Ag + ). It is dissolved in water and acts as a growth inhibitor and antibacterial action against microorganisms.
【００２４】一方、銀の酸化物にも抗菌作用があり、水
不溶性Ａｇ含有フレーク状ガラスを用いる場合には、そ
の比表面積が大きいため、銀酸化物がフレーク状ガラス
表面に存在する割合が高くなることから、銀酸化物によ
る抗菌作用が得られる。更に、水不溶性Ａｇ含有フレー
ク状ガラス中の銀イオンの触媒作用により、フレーク状
ガラス中の酸素が部分的に活性炭素に転換され、この活
性炭素が微生物の細胞に作用してこれを破壊することに
よっても抗菌作用が得られる。On the other hand, silver oxide also has an antibacterial effect, and when water-insoluble Ag-containing flake-shaped glass is used, since the specific surface area is large, the proportion of silver oxide present on the flake-shaped glass surface is high. Therefore, the antibacterial action of silver oxide can be obtained. Further, by the catalytic action of silver ions in the water-insoluble Ag-containing glass flakes, oxygen in the glass flakes is partially converted to activated carbon, and the activated carbon acts on the cells of the microorganism to destroy it. Also has an antibacterial effect.
【００２５】また、本発明のフレーク状ガラスは薄膜鱗
片状であるため、例えばこれを含有した塗料が基材上に
塗布された場合、塗膜内でフレーク状ガラスが基材に平
行して幾層にも積層され、銀イオンの溶出をコントロー
ルすることができ、抗菌性の持続期間を大きく延長でき
る。更に、フレーク状ガラスを含有する塗膜はフレーク
状ガラスの積層により、塗膜の硬さが増すとともに可撓
性が向上するため、塗膜強度を向上させることができ、
しかも塗膜の耐摩耗性、耐水性改良等の効果も得られ
る。Further, since the flake-shaped glass of the present invention is in the form of thin film flakes, for example, when a coating material containing the same is applied on a substrate, the flake-shaped glass is parallel to the substrate within the coating film. Layered in layers, the elution of silver ions can be controlled and the duration of antibacterial properties can be greatly extended. Further, the coating film containing the glass flakes, by laminating the glass flakes, the hardness and flexibility of the coating film is improved, the coating strength can be improved,
Moreover, the effects of improving the abrasion resistance and water resistance of the coating film can be obtained.
【００２６】一方、本発明のフレーク状ガラスを樹脂材
料に練り込んで成形した場合、上記と同様に樹脂材料の
流動方向に平行して配向されるので、銀イオンの溶出を
コントロールでき、抗菌性の持続期間を大きく延長でき
る。その上、フレーク状ガラスを含有する成形体は、フ
レーク状ガラスの配向により、成形品の強度のみなら
ず、寸法安定性が向上するため、複雑な成形体を精度良
く成形することも可能となる。On the other hand, when the glass flakes of the present invention are kneaded into a resin material to be molded, they are oriented parallel to the flow direction of the resin material as described above, so that the elution of silver ions can be controlled and the antibacterial property can be improved. The duration of can be greatly extended. Moreover, the molded body containing the glass flakes improves not only the strength of the molded product but also the dimensional stability due to the orientation of the glass flakes, so that it is possible to mold a complicated molded body with high accuracy. .
【００２７】このように、本発明の抗菌性を有するフレ
ーク状ガラスは、銀イオンを含有することから、銀イオ
ンによる優れた抗菌作用が得られ、また、鱗片状のフレ
ーク状ガラスであることから、塗料や樹脂材料に配合し
た場合、その鱗片状形状に由来する配向特性により、抗
菌性の徐放作用、長期持続作用を得ることができる上
に、塗膜の硬度、可撓性、強度、耐摩耗性、耐水性等の
向上、或いは、樹脂成形体の強度、寸法安定性との向上
を図ることができる。As described above, since the flaky glass having antibacterial properties of the present invention contains silver ions, an excellent antibacterial action due to silver ions can be obtained, and since it is a glass flaky glass. When blended in a paint or a resin material, due to the orientation property derived from the scale-like shape, antibacterial sustained release action and long-term sustaining action can be obtained, and the hardness, flexibility, strength of the coating film, It is possible to improve abrasion resistance, water resistance, etc., or to improve the strength and dimensional stability of the resin molded body.
【００２８】特に抗菌作用の徐放作用や長期持続作用
は、従来のＡｇ含有粉粒状ガラスからは予期し得ない作
用効果であり、この効果により、抗菌性塗膜又は抗菌性
樹脂成形体等の寿命が大幅に延長されることから、本発
明の工業的有用性は極めて大きい。In particular, the sustained release action and long-lasting action of the antibacterial action are actions and effects that cannot be expected from the conventional Ag-containing powdery granular glass. Due to this effect, the antibacterial coating film or the antibacterial resin molded product is obtained. The industrial usefulness of the present invention is extremely great because the life is greatly extended.
【００２９】[0029]
【実施例】以下に実施例及び比較例を挙げて、本発明を
より具体的に説明する。EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples below.
【００３０】実施例１ 下記組成の水溶解性Ａｇ含有ガラスにより、円筒ブロー
法により平均厚さ４μｍ、平均粒径１５０μｍのフレー
ク状ガラスを製造した。Example 1 Flake-shaped glass having an average thickness of 4 μm and an average particle diameter of 150 μm was produced by a cylindrical blow method using a water-soluble Ag-containing glass having the following composition.
【００３１】水溶解性Ａｇ含有ガラス組成 ＳｉＯ2 ６０．０重量％ Ｎａ2 Ｏ ３５．０重量％ Ａｌ2 Ｏ3 ３．０重量％ Ａｇ2 Ｏ（Ａｇ換算） １．３６重量％ このフレーク状ガラスを、ガラス含有率が３重量％にな
るように、アクリル系樹脂と混合したものを、６０ｍｍ
×６０ｍｍ×３ｍｍ厚さのＡＳ（アクリロニトリル−ス
チレン）樹脂成形体表面に約５０μｍの膜厚で塗布し
た。これを試験片として用い、下記カビ抵抗性試験を行
ない、結果を表１に示した。 Water-soluble Ag-containing glass composition SiO 2 60.0 wt% Na 2 O 35.0 wt% Al 2 O 3 3.0 wt% Ag 2 O (Ag conversion) 1.36 wt% This flaky glass Was mixed with an acrylic resin so that the glass content would be 3% by weight,
It was applied to a surface of an AS (acrylonitrile-styrene) resin molded body having a thickness of × 60 mm × 3 mm with a film thickness of about 50 μm. Using this as a test piece, the following mold resistance test was conducted, and the results are shown in Table 1.
【００３２】カビ抵抗性試験 上記試験片をＪＩＳ Ｚ ２９１１に準じて塗膜表面に
胞子懸濁液（第２群：Ｐｅｎｉｃｉｌｌｉｕｍ ｃｉｔ
ｒｉｕｍ ＡＴＣＣ９８４９，第４群：Ｃｌａｄｏｓｐ
ｏｒｉｕｍ ｈｅｒｂａｒｕｍ ＩＡＭ．Ｆ５１７）を
塗布し、温度２８±２℃、湿度９７±２％の雰囲気下で
培養した場合のカビの発生状況を調べた。 Mold resistance test The above test piece was subjected to a spore suspension (second group: Penicillium cit) on the surface of the coating film in accordance with JIS Z 2911.
ium ATCC9849, Group 4: Cladosp
orium herbarum IAM. F517) was applied and the state of mold development was examined when cultured in an atmosphere at a temperature of 28 ± 2 ° C. and a humidity of 97 ± 2%.
【００３３】表１より明らかなように、１２週間経過後
も全くカビの発生は認められなかった。As is clear from Table 1, no mold was found even after 12 weeks.
【００３４】比較例１ 実施例１と同組成のガラスを平均粒径約１０μｍに粉砕
したものを用いたこと以外は、同様にしてカビ抵抗試験
を行ない、結果を表１に示した。Comparative Example 1 A mold resistance test was conducted in the same manner except that glass having the same composition as in Example 1 was crushed to an average particle size of about 10 μm, and the results are shown in Table 1.
【００３５】比較例２ 通常の含アルカリフレーク状ガラス（Ｃガラス組成、平
均厚さ４μｍ、平均粒径１５０μｍ）を用いたこと以外
は同様にしてカビ抵抗性試験を行ない、結果を表１に示
した。Comparative Example 2 A mold resistance test was conducted in the same manner except that ordinary alkali-containing flake glass (C glass composition, average thickness 4 μm, average particle size 150 μm) was used, and the results are shown in Table 1. It was
【００３６】[0036]
【表１】 [Table 1]
【００３７】[0037]
【発明の効果】以上詳述した通り、本発明の抗菌性を有
するフレーク状ガラスは、銀イオンを含有する鱗片状ガ
ラスであるため、 銀イオンによる抗菌作用を得ることができる。 上記抗菌作用の徐放性、長期持続性を得ることがで
きる。 塗料や樹脂材料に配合した場合、塗膜の硬度、可撓
性、強度、耐摩耗性、耐水性等の向上、或いは、樹脂成
形体の強度、寸法安定性等の向上を図ることができる。 等の効果が奏され、各種抗菌性充填材等として工業的に
極めて有用である。As described in detail above, since the flaky glass having antibacterial properties of the present invention is a glass flake containing silver ions, it is possible to obtain an antibacterial action by silver ions. It is possible to obtain sustained release and long-term sustainability of the above antibacterial action. When blended in a paint or a resin material, it is possible to improve the hardness, flexibility, strength, abrasion resistance, water resistance, etc. of the coating film, or improve the strength, dimensional stability, etc. of the resin molded product. And the like, and is industrially extremely useful as various antibacterial fillers and the like.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 和夫 大阪府大阪市中央区道修町３丁目５番11号 日本板硝子株式会社内 (72)発明者 近藤 敏和 大阪府大阪市中央区道修町３丁目５番11号 日本板硝子株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Goto 3-5-11 Doshomachi, Chuo-ku, Osaka-shi, Osaka Within Nippon Sheet Glass Co., Ltd. (72) Toshikazu Kondo 3-chome, Dosho-cho, Chuo-ku, Osaka 5th-11th Nippon Sheet Glass Co., Ltd.
Claims (1)
よりなることを特徴とする抗菌性を有するフレーク状ガ
ラス。1. A flaky glass having antibacterial properties, which is made of glass flakes containing monovalent silver ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034693A JP3486919B2 (en) | 1993-07-09 | 1993-07-09 | Flake glass with antibacterial properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034693A JP3486919B2 (en) | 1993-07-09 | 1993-07-09 | Flake glass with antibacterial properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0725635A true JPH0725635A (en) | 1995-01-27 |
| JP3486919B2 JP3486919B2 (en) | 2004-01-13 |
Family
ID=15903229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17034693A Expired - Fee Related JP3486919B2 (en) | 1993-07-09 | 1993-07-09 | Flake glass with antibacterial properties |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3486919B2 (en) |
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