JPH115709A - Resin bathtub having antimicrobial property - Google Patents

Resin bathtub having antimicrobial property

Info

Publication number
JPH115709A
JPH115709A JP9173166A JP17316697A JPH115709A JP H115709 A JPH115709 A JP H115709A JP 9173166 A JP9173166 A JP 9173166A JP 17316697 A JP17316697 A JP 17316697A JP H115709 A JPH115709 A JP H115709A
Authority
JP
Japan
Prior art keywords
antibacterial
bathtub
resin
apatite
antibacterial agent
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
Application number
JP9173166A
Other languages
Japanese (ja)
Inventor
Kazunori Furubayashi
和典 古林
Keiko Kikuchi
恵子 菊池
Masakazu Ueno
正和 上野
Koji Shibata
浩治 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inax Corp
Original Assignee
Inax Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inax Corp filed Critical Inax Corp
Priority to JP9173166A priority Critical patent/JPH115709A/en
Publication of JPH115709A publication Critical patent/JPH115709A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bathtubs, Showers, And Their Attachments (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent discoloration of a bathtub due to antimicrobial agent with the passage of time in the case where the antimicrobial agent is included in the resin bathtub in order to impart antimicrobial property to the bathtub. SOLUTION: This resin bathtub having antimicrobial property is obtained by including an apatite-based antimicrobial agent comprising a mixed sintered material of hydroxyapatite with an antimicrobial component and having a shape carrying the antimicrobial component on apatite sintered material into a resin bathtub in the state in which particles of the antimicrobial agent are exposed on the surface.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は抗菌性を有する樹
脂浴槽に関し、詳しくは耐変色性に優れた樹脂浴槽に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin bath having antibacterial properties, and more particularly, to a resin bath having excellent discoloration resistance.

【0002】[0002]

【従来の技術】浴槽の汚れは、主として人間の排出した
垢や石鹸滓等が浴槽に付着し、これを細菌等の微生物が
餌として増殖し、浴槽内面に強固に固定されるなどして
生じる。そこで樹脂浴槽において、これに抗菌剤を含有
させ、抗菌性を持たせることで微生物の増殖を抑え、浴
槽を汚れ難くしたり或いは汚れを落しやすくすることが
考えられている。
2. Description of the Related Art Bathtub dirt is mainly caused by dirt, soap scum and the like discharged from humans adhering to a bathtub, and microorganisms such as bacteria multiply as bait and are firmly fixed to the inner surface of the bathtub. . Therefore, it has been considered that an antibacterial agent is added to the resin bathtub to provide the antibacterial property, thereby suppressing the growth of microorganisms and making the bathtub hardly soiled or easily soiled.

【0003】ところで抗菌剤の種類には従来種々のもの
が知られているが、大別すると有機系の抗菌剤と無機系
の抗菌剤とに分けることができる。而して有機系の抗菌
剤は耐熱性が低く耐久性が劣る問題があり、そこで一般
には耐熱性に優れ、また広い抗菌スペクトルを有して種
々の菌に対して有効に抗菌性を発揮する無機系の抗菌剤
が主として用いられている。
Various kinds of antibacterial agents are conventionally known, but can be roughly classified into organic antibacterial agents and inorganic antibacterial agents. Thus, organic antibacterial agents have a problem that heat resistance is low and durability is inferior. Therefore, in general, they have excellent heat resistance and have a broad antibacterial spectrum and exhibit effective antibacterial properties against various bacteria. Inorganic antibacterial agents are mainly used.

【0004】この無機系の抗菌剤の場合、ゼオライト,
リン酸ジルコニウム,シリカゲル,水溶性ガラス,チタ
ニア等の無機酸化物を担体として、その担体に銀,銅,
亜鉛等の抗菌成分を担持させたもの(担持の形態にはイ
オン交換,吸着,固溶,ガラス成分としての担持等各種
形態がある)が一般的であり、特にこのうち銀が最も抗
菌能力が高く安全性も高いことから、抗菌成分として銀
を担持させたものが最も多く用いられている。
In the case of this inorganic antibacterial agent, zeolite,
Inorganic oxides such as zirconium phosphate, silica gel, water-soluble glass, and titania are used as carriers, and silver, copper,
Antimicrobial components such as zinc are supported (in various forms, such as ion exchange, adsorption, solid solution, and support as glass components), and silver has the most antibacterial ability. Because of high safety and high safety, those carrying silver as an antibacterial component are most often used.

【0005】[0005]

【発明が解決しようとする課題】しかしながら上記のよ
うな従来一般に用いられている抗菌剤、特に抗菌成分と
して銀を担持した銀系抗菌剤を浴槽に含有させて抗菌性
を持たせた場合、樹脂浴槽のような長時間温水に浸漬さ
れる条件下では樹脂浴槽が経時的に変色(例えば黄変)
してしまい、浴槽の有する美観が損なわれる問題を生じ
ることが判明した。
However, when the above-mentioned conventional antibacterial agent, particularly a silver-based antibacterial agent carrying silver as an antibacterial component, is contained in a bathtub to impart antibacterial properties, Under long-term immersion in warm water such as a bathtub, the resin bathtub changes color over time (eg yellowing)
It has been found that this causes a problem that the beauty of the bathtub is impaired.

【0006】その理由の一つとして、例えば銀を抗菌成
分とする抗菌剤の場合、浴槽使用中に銀イオンが溶出
し、その溶出イオンがコロイドに変化したり他の物質と
化学反応を起こしたりして上記の変色を生じるものと考
えられる。
One of the reasons is that, for example, in the case of an antibacterial agent containing silver as an antibacterial component, silver ions elute during the use of a bath, and the eluted ions change into colloids or cause chemical reactions with other substances. It is considered that the above discoloration occurs.

【0007】[0007]

【課題を解決するための手段】本願の発明はこのような
課題を解決するために成されたものである。而して本発
明の抗菌性を有する樹脂浴槽は、ハイドロキシアパタイ
トと抗菌成分との混合焼結体から成り、アパタイト焼結
体に該抗菌成分を担持させた形態のアパタイト系抗菌剤
を、該抗菌剤の粒子が表面に露出する状態で浴槽に含有
させたことを特徴とする。
The invention of the present application has been made to solve such a problem. Thus, the resin bath having antibacterial properties of the present invention is made of a mixed sintered body of hydroxyapatite and an antibacterial component, and an apatite-based antibacterial agent in a form in which the antibacterial component is carried on a sintered apatite is used as the antibacterial agent. It is characterized in that the agent particles are contained in the bathtub in a state where they are exposed on the surface.

【0008】[0008]

【作用及び発明の効果】以上のように本発明は、アパタ
イト焼結体中に抗菌成分を焼結と同時に混合・焼結させ
たアパタイト系抗菌剤を樹脂浴槽に含有させたものであ
る。かかるアパタイト系抗菌剤を含有させた樹脂浴槽
を、温水を含む各種薬液に浸漬試験したところ、ゼオラ
イトや硼珪酸ガラス等の担体に銀を担持させた抗菌剤を
含有させた浴槽に比べて、温水や薬液に対する安定性が
非常に高く、良好な耐変色性を示すことを確認した。
As described above, according to the present invention, an apatite-based antibacterial agent obtained by mixing and sintering an antibacterial component simultaneously with sintering in an apatite sintered body is contained in a resin bath. When a resin bath containing such an apatite antibacterial agent was subjected to an immersion test in various chemical solutions containing warm water, hot water was compared with a bath containing an antibacterial agent having silver supported on a carrier such as zeolite or borosilicate glass. It has been confirmed that the composition has extremely high stability to chemicals and chemicals and exhibits good discoloration resistance.

【0009】本発明はこのような知見に基づいてなされ
たものである。例えばゼオライトに銀を担持させた抗菌
剤の場合、銀イオンが溶出して抗菌性を発揮する。そし
てまた同時に、溶出した銀イオンに起因して変色の問題
をもたらす。
The present invention has been made based on such findings. For example, in the case of an antibacterial agent having silver supported on zeolite, silver ions elute and exhibit antibacterial properties. And at the same time, it causes a problem of discoloration due to the eluted silver ions.

【0010】しかるにアパタイト系抗菌剤の場合、例え
ば1000℃以上の高温で焼結されたもので抗菌成分は
強固に担体中に固定保持されており、これを樹脂浴槽に
含有させて使用しても抗菌成分はイオンの形では殆ど溶
出してこない。このためかかるアパタイト系抗菌剤を含
有させた樹脂浴槽の場合、長期に亘って抗菌性が消失な
いし低下せず、且つまた抗菌成分イオンの溶出に起因す
る変色も生じないものと考えられる。
However, in the case of an apatite-based antibacterial agent, the antibacterial component is sintered at a high temperature of, for example, 1000 ° C. or more, and the antibacterial component is firmly fixed and held in a carrier. Antimicrobial components hardly elute in the form of ions. Therefore, in the case of a resin bath containing such an apatite-based antibacterial agent, it is considered that the antibacterial property does not disappear or decrease over a long period of time, and no discoloration due to elution of antibacterial component ions occurs.

【0011】但し本発明では、抗菌作用が抗菌成分イオ
ンの溶出によるものでないため、抗菌剤の粒子が表面に
露出する状態でこれを浴槽に含有させることが必要であ
る。尚、本発明では抗菌成分として銀を用いることが望
ましいが、銅,亜鉛等その他の抗菌成分を用いることも
可能である。
However, in the present invention, since the antibacterial action is not due to the elution of the antibacterial component ions, it is necessary to contain the antibacterial agent particles in the bathtub in a state where they are exposed on the surface. In the present invention, silver is preferably used as an antibacterial component, but other antibacterial components such as copper and zinc may be used.

【0012】また抗菌剤の樹脂浴槽への含有量として
は、浴槽材料全体を基準として0.1〜5.0重量%と
することが望ましい。0.1重量%より少ないと十分な
抗菌効果が得られず、また逆に5.0重量%より多いと
樹脂硬化度への影響が発現してくるとともに、それに伴
い強度物性への影響が出てくる。またコスト的にも高く
なってしまうことによる。
The content of the antibacterial agent in the resin bath is desirably 0.1 to 5.0% by weight based on the entire bathtub material. If the amount is less than 0.1% by weight, a sufficient antibacterial effect cannot be obtained. On the contrary, if the amount is more than 5.0% by weight, the effect on the degree of curing of the resin is exerted, and the effect on the strength physical properties comes out accordingly. Come. In addition, the cost is increased.

【0013】またアパタイト系抗菌剤としては粒径が
0.1〜4μmの細かい粒子を用い、これを樹脂浴槽表
面に均一に分散させることが望ましい。このようにした
場合少量で抗菌効果を発揮することができ、従って浴槽
材料に抗菌剤を練込含有させた場合において、浴槽の一
般性能を劣化させない利点が得られる。
As the apatite antibacterial agent, it is desirable to use fine particles having a particle size of 0.1 to 4 μm and to uniformly disperse them on the surface of the resin bath. In this case, the antibacterial effect can be exhibited with a small amount, and therefore, when the antibacterial agent is kneaded and contained in the bathtub material, there is obtained an advantage that the general performance of the bathtub is not deteriorated.

【0014】[0014]

【実施例】次に本発明の実施例を以下に具体的に説明す
る。不飽和ポリエステル樹脂をベースにしたゲルコート
樹脂に表1に示す各種銀系抗菌剤、具体的にはアパタイ
トに銀を担持させたアパタイト系抗菌剤,ゼオライトに
銀を担持させたゼオライト系抗菌剤,硼珪酸ガラスに銀
を担持させた硼珪酸ガラス系抗菌剤,リン酸ジルコニウ
ムに銀を担持させたリン酸ジルコニウム系抗菌剤を添加
混合して浴槽材料となし、これを用いて樹脂浴槽を成形
した。
Next, embodiments of the present invention will be described in detail. Various silver-based antibacterial agents shown in Table 1 on gel coat resin based on unsaturated polyester resin, specifically, apatite-based antibacterial agents having silver supported on apatite, zeolite-based antibacterial agents having silver supported on zeolite, boron A borosilicate glass-based antibacterial agent having silver supported on silicate glass and a zirconium phosphate-based antibacterial agent having silver supported on zirconium phosphate were added and mixed to form a bathtub material, which was used to form a resin bathtub.

【0015】尚、各成形材料と抗菌剤との混合比率は、
成形材料100に対して抗菌剤を1.0とした。そして
これを表1に示す各種薬液剤(水道水,60℃水道水,
市販入浴剤A(pH8.05),市販入浴剤B(pH
7.31))に浸漬試験し、変色の程度を評価した。結
果が表1に併せて示してある。
The mixing ratio between each molding material and the antibacterial agent is as follows:
The antibacterial agent for the molding material 100 was set to 1.0. Then, this was mixed with various chemicals shown in Table 1 (tap water, 60 ° C tap water,
Commercial bath agent A (pH 8.05), commercial bath agent B (pH
7.31)) was subjected to an immersion test to evaluate the degree of discoloration. The results are shown in Table 1.

【0016】尚上記のアパタイト系抗菌剤は粒径が0.
1〜4μmの細かいもので、これを浴槽表面に均一に分
散状態で露出させた。但し樹脂材料を含む成形材料と抗
菌剤とを混合練込みし、浴槽を成形することで抗菌剤粒
子を浴槽表面に分散露出させることができる。また浸漬
試験は30日間行い、その30日間放置後の変色の程度
を観察することで変色の評価を行った。
The above-mentioned apatite antibacterial agent has a particle size of 0.1.
This was a fine one having a size of 1 to 4 μm, which was uniformly dispersed and exposed on the bathtub surface. However, the antibacterial agent particles can be dispersed and exposed on the surface of the bathtub by mixing and kneading the molding material containing the resin material and the antibacterial agent and forming the bathtub. The immersion test was performed for 30 days, and the discoloration was evaluated by observing the degree of discoloration after leaving for 30 days.

【0017】[0017]

【表1】 [Table 1]

【0018】この表1の結果に表われているように、抗
菌剤としてアパタイト系抗菌剤を含有させた樹脂浴槽の
場合、良好な耐変色性を有することが分かる。尚抗菌試
験も併せて実施したが、上記アパタイト系抗菌剤を含有
させた樹脂浴槽の場合十分な抗菌性を示した。
As can be seen from the results in Table 1, the resin bath containing an apatite antibacterial agent as an antibacterial agent has good discoloration resistance. Although an antibacterial test was also conducted, the resin bath containing the apatite antibacterial agent showed sufficient antibacterial properties.

【0019】以上本発明の実施例を詳述したがこれはあ
くまで一例示であり、本発明はその主旨を逸脱しない範
囲において種々変更を加えた態様で実施可能である。
Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be implemented in variously modified forms without departing from the gist thereof.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴田 浩治 愛知県常滑市鯉江本町5丁目1番地 株式 会社イナックス内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Koji Shibata 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Pref.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ハイドロキシアパタイトと抗菌成分との
混合焼結体から成り、アパタイト焼結体に該抗菌成分を
担持させた形態のアパタイト系抗菌剤を、該抗菌剤の粒
子が表面に露出する状態で浴槽に含有させたことを特徴
とする抗菌性を有する樹脂浴槽。
An apatite-based antibacterial agent comprising a mixed sintered body of hydroxyapatite and an antibacterial component, wherein the antibacterial component is supported on a sintered apatite, in a state where particles of the antibacterial agent are exposed on the surface. A resin bath having antibacterial properties, characterized in that the bath is contained in the bath.
JP9173166A 1997-06-13 1997-06-13 Resin bathtub having antimicrobial property Pending JPH115709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9173166A JPH115709A (en) 1997-06-13 1997-06-13 Resin bathtub having antimicrobial property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9173166A JPH115709A (en) 1997-06-13 1997-06-13 Resin bathtub having antimicrobial property

Publications (1)

Publication Number Publication Date
JPH115709A true JPH115709A (en) 1999-01-12

Family

ID=15955333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9173166A Pending JPH115709A (en) 1997-06-13 1997-06-13 Resin bathtub having antimicrobial property

Country Status (1)

Country Link
JP (1) JPH115709A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6703191B1 (en) 2003-01-14 2004-03-09 Eastman Kodak Company Thermally developable emulsions and materials containing tirazine-thione compounds
US6737227B1 (en) 2003-03-07 2004-05-18 Eastman Kodak Company Thermally developable emulsions and materials containing heterocyclic disulfide compounds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6703191B1 (en) 2003-01-14 2004-03-09 Eastman Kodak Company Thermally developable emulsions and materials containing tirazine-thione compounds
US6849392B2 (en) 2003-01-14 2005-02-01 Eastman Kodak Company Thermally developable emulsions and materials containing triazine-thione compounds
US6737227B1 (en) 2003-03-07 2004-05-18 Eastman Kodak Company Thermally developable emulsions and materials containing heterocyclic disulfide compounds

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