JP3085091B2 - Antibacterial gypsum products - Google Patents
Antibacterial gypsum productsInfo
- Publication number
- JP3085091B2 JP3085091B2 JP12560594A JP12560594A JP3085091B2 JP 3085091 B2 JP3085091 B2 JP 3085091B2 JP 12560594 A JP12560594 A JP 12560594A JP 12560594 A JP12560594 A JP 12560594A JP 3085091 B2 JP3085091 B2 JP 3085091B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- peroxide
- gypsum
- antibacterial
- condensed
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/67—Biocides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、家庭内・病院内におけ
る特に湿度の高い所の内装材、置物、装飾品等に適用さ
れる抗菌性石膏製品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial gypsum product applied to interior materials, ornaments, decorations and the like in places with high humidity especially in homes and hospitals.
【０００２】[0002]
【従来の技術】抗菌性を有する化合物は、従来より内装
材として色々な形に加工され含有され使われてきた。し
かし、使用する目的・用途により多少の差はあるが、コ
スト、外観（変色性）、人体への影響等の点から一時的
効果に頼らざるを得なかった。抗菌性を有する化合物
は、有機系化合物と金属元素を含有する無機系化合物に
大別される。無機系化合物は、有機系化合物に比較して
毒性が弱く、耐性菌を生じにくい長所を有している。そ
の為、抗菌性のある銀などの金属元素粒子が使用されて
きた。しかし、粒子表面の金属元素がイオンとして溶出
した場合は、紫外線により酸化されやすく、例えば銀イ
オンの場合、太陽光程度の紫外線量でも、速やかに酸化
銀を発生し変色する。また、価格もかなり高価なため、
使用量が制限される。一方、粒子径 1.0〜 0.5μｍの酸
化亜鉛（亜鉛華）は、紫外線により酸化されにくく、抗
菌性はあると言われているが、実際には抗菌効果が少な
いため単独では使用できず、他の抗菌性のある金属との
併用で用いられている。2. Description of the Related Art Compounds having antibacterial properties have been processed into various forms and contained and used as interior materials. However, although there are some differences depending on the purpose and application of use, it is necessary to rely on the temporary effect in terms of cost, appearance (discoloration), influence on the human body, and the like. Compounds having antibacterial properties are roughly classified into organic compounds and inorganic compounds containing a metal element. Inorganic compounds have the advantage of being less toxic than organic compounds and less likely to cause resistant bacteria. Therefore, metal element particles such as antibacterial silver have been used. However, when the metal element on the particle surface is eluted as an ion, it is easily oxidized by ultraviolet rays. For example, in the case of silver ions, silver oxide is quickly generated and discolored even with an ultraviolet ray amount of about sunlight. Also, the price is quite expensive,
Usage is limited. On the other hand, zinc oxide (zinc white) having a particle size of 1.0 to 0.5 μm is hardly oxidized by ultraviolet rays and is said to have antibacterial properties. However, it has a small antibacterial effect and cannot be used alone. Used in combination with antibacterial metals.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、着色
・変色が少なく、取り扱い易く、コストが著しく低く、
毒性がなく、特に紫外線の作用で防菌・防黴、たばこの
ヤニ、油などの有機物の分解に著しい効果を示す抗菌性
石膏製品の提供にある。SUMMARY OF THE INVENTION An object of the present invention is to reduce coloring and discoloration, to be easy to handle, to have extremely low cost,
It is an object of the present invention to provide an antibacterial gypsum product which has no toxicity and is particularly effective in disinfecting organic substances such as bacteria and fungi, cigarette tar and oil under the action of ultraviolet rays.
【０００４】[0004]
【課題を解決するための手段】すなわち本発明は、石膏
50〜99重量％と、粒径 0.5μｍ未満の酸化亜鉛微粒子50
〜１重量％とを混和してなり、更に過酸化縮合金属イオ
ンを含むことを特徴とする抗菌性石膏製品に関する。That is, the present invention provides a gypsum
50-99% by weight and zinc oxide fine particles with a particle size of less than 0.5 μm50
Ri Na by mixing a 1 weight%, further peroxide condensed metal ions
The present invention relates to an antibacterial gypsum product characterized by containing gypsum.
【０００５】本発明に使用する酸化亜鉛微粒子は、従来
用いられてきた酸化亜鉛（亜鉛華）とは粒子の大きさが
異なり、粒径 0.5μｍ未満、好ましくは 0.2μｍ以下の
微粒子であり、殺菌作用並びに防菌、防黴の性質が強
い。なお、本発明に使用する酸化亜鉛微粒子の比表面積
は、19.5（m2/g) 以上である。また、石膏と酸化亜鉛微
粒子とは、石膏50〜99重量％に対して、酸化亜鉛微粒子
50〜１重量％の割合で混和するが、酸化亜鉛微粒子の量
が多くなるほど得られる石膏製品は脆くなるため、酸化
亜鉛微粒子を40重量％以下の範囲で混和することが好ま
しい。[0005] The zinc oxide fine particles used in the present invention are different in particle size from the conventionally used zinc oxide (zinc white) and have a particle size of less than 0.5 µm, preferably 0.2 µm or less. Strong action, antibacterial and antifungal properties. The specific surface area of the zinc oxide fine particles used in the present invention is 19.5 (m 2 / g) or more. In addition, the gypsum and the zinc oxide fine particles are such that the zinc oxide fine
Although it is mixed at a ratio of 50 to 1% by weight, the gypsum product obtained becomes more brittle as the amount of the zinc oxide fine particles increases, and therefore it is preferable to mix the zinc oxide fine particles within a range of 40% by weight or less.
【０００６】本発明の石膏製品は、過酸化縮合金属イオ
ンを含有させることにより、さらに抗菌性を高めること
ができる。過酸化縮合金属イオンは、含有金属イオンに
より抗菌性を発揮するものと思われる。過酸化縮合金属
イオンは、金、銀、銅、亜鉛、錫、アルミニウム、ニッ
ケル、コバルト、マンガン、バナジウム、モリブデン、
タングステン、ホウ素およびそれらの酸化物から選ばれ
る少なくとも一種の金属または金属酸化物に過酸化水素
を反応させて得られるものである。金属あるいは金属酸
化物に直接過酸化水素を滴下すると急激な反応を引き起
こし、反応制御ができないため発熱も著しいが、この様
にして得られた過酸化縮合金属イオンは、本発明の石膏
製品に使用することができる。しかし、金属塩に直接過
酸化水素を滴下すると、長時間にわたって徐々に酸素ガ
スの発生がみられるが、過酸化縮合反応は起こらず、過
酸化縮合金属イオンとしては使用できない。[0006] The gypsum product of the present invention can be further enhanced in antibacterial properties by containing a condensation metal ion of peroxide. It is considered that the condensed peroxide metal ions exert antibacterial properties by the contained metal ions. Peroxide condensation metal ions include gold, silver, copper, zinc, tin, aluminum, nickel, cobalt, manganese, vanadium, molybdenum,
It is obtained by reacting hydrogen peroxide with at least one metal or metal oxide selected from tungsten, boron and their oxides. If hydrogen peroxide is dropped directly onto a metal or metal oxide, a rapid reaction is caused, and the reaction cannot be controlled, resulting in significant heat generation.The thus obtained condensed peroxide metal ion is used in the gypsum product of the present invention. can do. However, when hydrogen peroxide is dropped directly on the metal salt, oxygen gas is gradually generated over a long period of time, but the peroxide condensation reaction does not occur and cannot be used as the metal peroxide condensation.
【０００７】過酸化縮合金属イオンは、塩化パラジウム
の存在下、金、銀、銅、亜鉛、錫、アルミニウム、ニッ
ケル、コバルト、マンガン、バナジウム、モリブデン、
タングステン、ホウ素およびそれらの塩から選ばれる少
なくとも一種の金属または金属塩に、過酸化水素を反応
させて得ることもできる。金属塩としては、酸化亜鉛、
硝酸銀、塩化銀、塩化第二銅、硫酸銅、塩化第一鉄等が
挙げられる。塩化パラジウムを用いる場合には、塩化パ
ラジウムの触媒作用により反応が進行するため、その使
用量により反応を制御することができ、反応を穏やかに
進めることができる。すなわち、塩化パラジウムの存在
下で金属酸化物または金属塩に過酸化水素を滴下するこ
とにより、反応制御による過酸化縮合金属イオンが得ら
れる。また、過酸化縮合金属イオンを生成する際に、反
応制御と防黴剤の機能をもつホウ酸（酸化ホウ素）を併
用することにより、さらに抗菌性を高めることができ
る。[0007] The metal ions of the condensed peroxide are prepared in the presence of palladium chloride in the presence of gold, silver, copper, zinc, tin, aluminum, nickel, cobalt, manganese, vanadium, molybdenum,
It can also be obtained by reacting hydrogen peroxide with at least one metal or metal salt selected from tungsten, boron and salts thereof. As metal salts, zinc oxide,
Silver nitrate, silver chloride, cupric chloride, copper sulfate, ferrous chloride and the like. When palladium chloride is used, the reaction proceeds by the catalytic action of palladium chloride, so that the reaction can be controlled by the amount of palladium chloride used, and the reaction can proceed gently. That is, by dropping hydrogen peroxide onto a metal oxide or metal salt in the presence of palladium chloride, a peroxide-condensed metal ion is obtained by controlling the reaction. When boric acid (boron oxide) having the function of controlling the reaction and the function of an antifungal agent is used at the time of producing the peroxide condensed metal ion, the antibacterial property can be further enhanced.
【０００８】[0008]
【実施例】以下、実施例により本発明を説明する。例
中、部とは重量部を、％は重量％をそれぞれ表す。 〔過酸化縮合金属イオンの生成例１〕500cc の器に、酸
化亜鉛１部、塩化パラジウム0.02部を秤量し、その中へ
過酸化水素 100部を入れた。約 100分で沸騰状態とな
り、約７分間沸騰状態が続いた。室温に戻った後、上澄
み（過酸化縮合金属イオン溶液）を取り分けた。 〔過酸化縮合金属イオンの生成例２〕500cc の器に、硝
酸銀１部、塩化パラジウム0.02部を秤量し、その中へ過
酸化水素 100部を入れた。約２時間10分で沸騰状態とな
り、約10分間沸騰状態が続いた。室温に戻った後、上澄
み（過酸化縮合金属イオン溶液）を取り分けた。The present invention will be described below with reference to examples. In the examples, “parts” means “parts by weight” and “%” means “% by weight”. [Production Example 1 of Peroxide Condensed Metal Ion] In a 500 cc vessel, 1 part of zinc oxide and 0.02 part of palladium chloride were weighed, and 100 parts of hydrogen peroxide was put therein. It boiled in about 100 minutes and continued for about 7 minutes. After returning to room temperature, the supernatant (condensed metal peroxide solution) was separated. [Production Example 2 of Peroxide Condensed Metal Ion] In a 500 cc vessel, 1 part of silver nitrate and 0.02 part of palladium chloride were weighed, and 100 parts of hydrogen peroxide was placed therein. It became a boiling state in about 2 hours and 10 minutes, and the boiling state continued for about 10 minutes. After returning to room temperature, the supernatant (condensed metal peroxide solution) was separated.
【０００９】〔過酸化縮合金属イオンの生成例３〕500c
c の器に、塩化コバルト２部、塩化パラジウム0.04部を
秤量し、その中へ過酸化水素 100部を入れた。瞬時に沸
騰し、溶解した。その後30分経過した頃より盛んに発泡
し、80分で50〜60℃の赤褐色透明液となった。室温に戻
った後、上澄み（過酸化縮合金属イオン溶液）を取り分
けた。 〔過酸化縮合金属イオンの生成例４〕500cc の器に、硫
酸銅２部、塩化パラジウム0.04部を秤量し、その中へ過
酸化水素 100部を入れた。約30分で沸騰状態となり、約
７分間沸騰状態が続いた。室温に戻った後、上澄み（過
酸化縮合金属イオン溶液）を取り分けた。[Example 3 of formation of condensation metal ion with peroxide] 500c
In a vessel (c), 2 parts of cobalt chloride and 0.04 parts of palladium chloride were weighed, and 100 parts of hydrogen peroxide was placed therein. It boiled instantly and dissolved. After about 30 minutes, the foaming became active and became a reddish brown transparent liquid at 50-60 ° C in 80 minutes. After returning to room temperature, the supernatant (condensed metal peroxide solution) was separated. [Production Example 4 of Peroxide Condensed Metal Ion] In a 500 cc vessel, 2 parts of copper sulfate and 0.04 part of palladium chloride were weighed, and 100 parts of hydrogen peroxide was placed therein. It boiled in about 30 minutes and continued for about 7 minutes. After returning to room temperature, the supernatant (condensed metal peroxide solution) was separated.
【００１０】〔過酸化縮合金属イオンの生成例５〕500c
c の器に、酸化亜鉛１部、酸化ホウ素 0.4部、塩化パラ
ジウム0.04部を秤量し、その中へ過酸化水素 100部を入
れた。３時間後、約40〜50℃に発熱した。室温に戻った
後、上澄み（過酸化縮合金属イオン溶液）を取り分け
た。 〔過酸化縮合金属イオンの生成例６〕500cc の器に、モ
リブデン１部、過酸化水素 100部を入れた。20分後、完
全に発熱溶解して、過酸化縮合金属イオン溶液を得た。[Example 5 of formation of condensation metal ion with peroxide] 500c
In a vessel (c), 1 part of zinc oxide, 0.4 part of boron oxide and 0.04 part of palladium chloride were weighed, and 100 parts of hydrogen peroxide was placed therein. After 3 hours, an exotherm occurred to about 40-50 ° C. After returning to room temperature, the supernatant (condensed metal peroxide solution) was separated. [Production Example 6 of Peroxide Condensed Metal Ion] In a 500 cc vessel, 1 part of molybdenum and 100 parts of hydrogen peroxide were charged. After 20 minutes, the mixture was completely exothermic and dissolved to obtain a solution of a condensed metal peroxide.
【００１１】〔実施例１（参考例）〕 口の広い器に、石膏50部、酸化亜鉛（粒径 0.2μｍ以
下) 微粒子50部を入れて良くかき混ぜ、水 110部を入れ
スラリ−とし、指定型枠に流し込んだ後乾燥し、石膏製
品を得た。 〔実施例２（参考例）〕 口の広い器に、石膏70部、酸化亜鉛（粒径 0.2μｍ以
下) 微粒子30部を入れて良くかき混ぜ、水 100部を入れ
スラリ−とし、指定型枠に流し込んだ後乾燥し、石膏製
品を得た。[Example 1 (Reference example) ] In a vessel having a wide mouth, 50 parts of gypsum and 50 parts of zinc oxide (particle diameter: 0.2 μm or less) are put and mixed well, and 110 parts of water is put into a slurry. After pouring into a mold, it was dried to obtain a gypsum product. [Example 2 (Reference Example) ] In a vessel having a wide mouth, put 70 parts of gypsum, 30 parts of zinc oxide (particle diameter: 0.2 μm or less) fine particles, stir well, add 100 parts of water to make a slurry, and form a slurry. After pouring, it was dried to obtain a gypsum product.
【００１２】〔実施例３（参考例）〕 口の広い器に、石膏90部、酸化亜鉛（粒径 0.2μｍ以
下) 微粒子10部を入れて良くかき混ぜ、水 100部を入れ
スラリ−とし、指定型枠に流し込んだ後乾燥し、石膏製
品を得た。 〔実施例４〕 口の広い器に、石膏60部、酸化亜鉛（粒径 0.2μｍ以
下) 微粒子40部を入れて良くかき混ぜ、生成例１で得ら
れた過酸化縮合金属イオン溶液 100部を入れスラリ−と
し、指定型枠に流し込んだ後乾燥し、石膏製品を得た。[Example 3 (Reference Example) ] In a vessel having a wide mouth, 90 parts of gypsum and 10 parts of zinc oxide (particle diameter: 0.2 μm or less) are mixed well, mixed well, and 100 parts of water is added to form a slurry. After pouring into a mold, it was dried to obtain a gypsum product. [Example 4] In a vessel having a wide mouth, 60 parts of gypsum and 40 parts of fine particles of zinc oxide (particle size: 0.2 µm or less) were put and mixed well, and 100 parts of the peroxidized condensed metal ion solution obtained in Production Example 1 was put. The slurry was poured into a designated mold and dried to obtain a gypsum product.
【００１３】〔実施例５〕口の広い器に、石膏80部、酸
化亜鉛（粒径 0.2μｍ以下) 微粒子20部を入れて良くか
き混ぜ、生成例１で得られた過酸化縮合金属イオン溶液
100部を入れスラリ−とし、指定型枠に流し込んだ後乾
燥し、石膏製品を得た。 〔実施例６〕口の広い器に、石膏90部、酸化亜鉛（粒径
0.2μｍ以下) 微粒子10部を入れて良くかき混ぜ、生成
例１で得られた過酸化縮合金属イオン溶液 100部を入れ
スラリ−とし、指定型枠に流し込んだ後乾燥し、石膏製
品を得た。[Example 5] In a vessel having a wide mouth, 80 parts of gypsum and 20 parts of fine particles of zinc oxide (particle size: 0.2 µm or less) were put and stirred well, and the peroxidized condensed metal ion solution obtained in Production Example 1 was stirred.
100 parts were put into a slurry, poured into a designated mold and dried to obtain a gypsum product. [Example 6] In a vessel having a wide mouth, gypsum 90 parts, zinc oxide (particle size)
(0.2 μm or less) 10 parts of the fine particles were added and mixed well, and 100 parts of the peroxide-condensed metal ion solution obtained in Production Example 1 was added as a slurry. The slurry was poured into a specified mold and dried to obtain a gypsum product.
【００１４】〔実施例７〕生成例１で得られた過酸化縮
合金属イオン溶液を生成例２で得られた過酸化縮合金属
イオン溶液に代えた以外は、実施例４と同様にして石膏
製品を得た。 〔実施例８〕生成例１で得られた過酸化縮合金属イオン
溶液を生成例２で得られた過酸化縮合金属イオン溶液に
代えた以外は、実施例６と同様にして石膏製品を得た。 〔実施例９〕生成例１で得られた過酸化縮合金属イオン
溶液を生成例３で得られた過酸化縮合金属イオン溶液に
代えた以外は、実施例４と同様にして石膏製品を得た。Example 7 A gypsum product was prepared in the same manner as in Example 4 except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 2. I got [Example 8] A gypsum product was obtained in the same manner as in Example 6, except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 2. . Example 9 A gypsum product was obtained in the same manner as in Example 4, except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 3. .
【００１５】〔実施例10〕生成例１で得られた過酸化縮
合金属イオン溶液を生成例４で得られた過酸化縮合金属
イオン溶液に代えた以外は、実施例４と同様にして石膏
製品を得た。 〔実施例11〕生成例１で得られた過酸化縮合金属イオン
溶液を生成例４で得られた過酸化縮合金属イオン溶液に
代えた以外は、実施例６と同様にして石膏製品を得た。 〔実施例12〕生成例１で得られた過酸化縮合金属イオン
溶液を生成例５で得られた過酸化縮合金属イオン溶液に
代えた以外は、実施例４と同様にして石膏製品を得た。Example 10 A gypsum product was prepared in the same manner as in Example 4 except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 4. I got [Example 11] A gypsum product was obtained in the same manner as in Example 6, except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 4. . [Example 12] A gypsum product was obtained in the same manner as in Example 4 except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 5. .
【００１６】〔実施例13〕生成例１で得られた過酸化縮
合金属イオン溶液を生成例５で得られた過酸化縮合金属
イオン溶液に代えた以外は、実施例６と同様にして石膏
製品を得た。 〔実施例14〕生成例１で得られた過酸化縮合金属イオン
溶液を生成例６で得られた過酸化縮合金属イオン溶液に
代えた以外は、実施例６と同様にして石膏製品を得た。Example 13 A gypsum product was prepared in the same manner as in Example 6 except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 5. I got [Example 14] A gypsum product was obtained in the same manner as in Example 6, except that the condensed metal peroxide solution obtained in Production Example 1 was replaced with the condensed metal peroxide solution obtained in Production Example 6. .
【００１７】〔比較例１〕口の広い器に、石膏 100部，
水90部を入れスラリ−とし、指定型枠に流し込んだ後乾
燥し、石膏製品を得た。 〔比較例２〕口の広い器に、石膏80部、酸化亜鉛（粒径
1.0〜0.5 μｍ) 20部を入れて良くかき混ぜ、水 100部
を入れスラリ−とし、指定型枠に流し込んだ後乾燥し、
石膏製品を得た。 〔比較例３〕口の広い器に、石膏60部、酸化亜鉛（粒径
1.0〜0.5 μｍ) 40部を入れて良くかき混ぜ、水 100部
を入れスラリ−とし、指定型枠に流し込んだ後乾燥し、
石膏製品を得た。[Comparative Example 1] In a vessel having a wide mouth, 100 parts of gypsum,
A slurry was put in 90 parts of water, poured into a designated mold and dried to obtain a gypsum product. [Comparative Example 2] In a vessel having a wide mouth, gypsum 80 parts, zinc oxide (particle size)
(1.0 to 0.5 μm) Add 20 parts, stir well, add 100 parts of water to make a slurry, pour it into the specified formwork, and dry.
A plaster product was obtained. [Comparative Example 3] Gypsum 60 parts, zinc oxide (particle size)
(1.0-0.5 μm) Add 40 parts, stir well, add 100 parts of water to make a slurry, pour it into the specified formwork, and dry.
A plaster product was obtained.
【００１８】実施例１〜14および比較例１〜３で得られ
た石膏製品について、抗菌性を評価した。結果を表１に
示す。なお、評価は以下のようにして行った。表１に示
す菌を５×５cm2 の試験資料表面に噴霧し、24時間培養
した。培養後、検体を含まない対照の増殖程度と比較し
抗菌活性を評価した。抗菌活性は、菌の増殖程度が対照
の増殖レベルと同等の場合を−、対照の増殖レベルの50
％程度までの場合を＋、ほぼ完全に抑制された場合を＋
＋とした。The gypsum products obtained in Examples 1 to 14 and Comparative Examples 1 to 3 were evaluated for antibacterial properties. Table 1 shows the results. In addition, evaluation was performed as follows. The bacteria shown in Table 1 were sprayed on the surface of a test specimen of 5 × 5 cm 2 and cultured for 24 hours. After the cultivation, the antibacterial activity was evaluated in comparison with the degree of proliferation of a control containing no specimen. The antibacterial activity was determined when the degree of bacterial growth was equivalent to the growth level of the control-50% of the growth level of the control.
+ When the amount is up to about%, and + when almost completely suppressed.
+.
【００１９】[0019]
【表１】 [Table 1]
【００２０】実施例１〜14および比較例１〜３で得られ
た石膏製品について、耐候性を評価した。結果を表２に
示す。なお、評価は以下のようにして行った。試験資料
を「キセノンロングライフウェザオメ−タ−」にて、湿
度70% 下で72時間、 168時間、 480時間の耐候性試験を
行った。冷暗所に保存した資料を対照資料とし、変色度
合いを目視で評価した。評価基準は、変色なしを５、変
色顕著を１とし、５段階で表した。The gypsum products obtained in Examples 1 to 14 and Comparative Examples 1 to 3 were evaluated for weather resistance. Table 2 shows the results. In addition, evaluation was performed as follows. The test materials were subjected to a weather resistance test under a humidity of 70% for 72 hours, 168 hours, and 480 hours using "Xenon Long Life Weatherometer". The material stored in a cool dark place was used as a reference material, and the degree of discoloration was visually evaluated. The evaluation criterion was expressed in five levels, with 5 indicating no discoloration and 1 indicating significant discoloration.
【００２１】[0021]
【表２】 [Table 2]
【００２２】[0022]
【発明の効果】本発明により、着色・変色が少なく、取
り扱い易く、コストが著しく低く、毒性がなく、特に紫
外線の作用で防菌・防黴に著しい特徴を示し、広範囲に
利用でき、工業的に極めて有用な抗菌性石膏製品が提供
できるようになった。Industrial Applicability According to the present invention, there is little coloring and discoloration, it is easy to handle, the cost is remarkably low, there is no toxicity. An extremely useful antibacterial gypsum product can be provided.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０４Ｂ 111:20 (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 28/14 C04B 14/30 C04B 111:20 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 identification code FI C04B 111: 20 (58) Investigated field (Int.Cl. 7 , DB name) C04B 28/14 C04B 14/30 C04B 111: 20
Claims (3)
酸化亜鉛微粒子50〜１重量％とを混和してなり、更に過
酸化縮合金属イオンを含むことを特徴とする抗菌性石膏
製品。1. A and gypsum 50 to 99% by weight, Ri Na by mixing a 50 to 1 wt% zinc oxide particles having a particle size of less than 0.5 [mu] m, further over
An antibacterial gypsum product comprising an oxidized condensed metal ion .
鉛、錫、アルミニウム、ニッケル、コバルト、マンガ
ン、バナジウム、モリブデン、タングステン、ホウ素お
よびそれらの酸化物から選ばれる少なくとも一種に過酸
化水素を反応させて得られることを特徴とする請求項１
記載の抗菌性石膏製品。2. The peroxide condensed metal ion is converted to at least one selected from gold, silver, copper, zinc, tin, aluminum, nickel, cobalt, manganese, vanadium, molybdenum, tungsten, boron and oxides thereof. 2. The method according to claim 1, wherein the compound is obtained by reacting hydrogen.
An antibacterial gypsum product as described.
の存在下、金、銀、銅、亜鉛、錫、アルミニウム、ニッ
ケル、コバルト、マンガン、バナジウム、モリブデン、
タングステン、ホウ素およびそれらの塩から選ばれる少
なくとも一種に過酸化水素を反応させて得られることを
特徴とする請求項１記載の抗菌性石膏製品。3. The method according to claim 1, wherein the condensation metal ion in the presence of palladium chloride is gold, silver, copper, zinc, tin, aluminum, nickel, cobalt, manganese, vanadium, molybdenum,
The antibacterial gypsum product according to claim 1, which is obtained by reacting hydrogen peroxide with at least one selected from tungsten, boron and salts thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12560594A JP3085091B2 (en) | 1994-06-08 | 1994-06-08 | Antibacterial gypsum products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12560594A JP3085091B2 (en) | 1994-06-08 | 1994-06-08 | Antibacterial gypsum products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07330412A JPH07330412A (en) | 1995-12-19 |
| JP3085091B2 true JP3085091B2 (en) | 2000-09-04 |
Family
ID=14914263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12560594A Expired - Fee Related JP3085091B2 (en) | 1994-06-08 | 1994-06-08 | Antibacterial gypsum products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3085091B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100439019B1 (en) * | 1996-08-02 | 2004-08-30 | 주식회사 금강고려화학 | Antibacterial-antimuycotic gypsum board and its manufacturing method |
| EP1799929A2 (en) * | 2004-09-13 | 2007-06-27 | Horsehead Corp. | Bacteria and mold resistant wallboard |
| KR100984931B1 (en) * | 2005-11-09 | 2010-10-01 | 요시노 셋고 가부시키가이샤 | Composition for building material, plasterboard, and technique, wall, and the like employing or formed from these |
-
1994
- 1994-06-08 JP JP12560594A patent/JP3085091B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07330412A (en) | 1995-12-19 |
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