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JP4883828B2 - Deodorant composition - Google Patents
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JP4883828B2 - Deodorant composition - Google Patents

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JP4883828B2
JP4883828B2 JP2000010935A JP2000010935A JP4883828B2 JP 4883828 B2 JP4883828 B2 JP 4883828B2 JP 2000010935 A JP2000010935 A JP 2000010935A JP 2000010935 A JP2000010935 A JP 2000010935A JP 4883828 B2 JP4883828 B2 JP 4883828B2
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Prior art keywords
zinc oxide
particles
deodorant
functional particles
deodorizing
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JP2000010935A
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JP2001198202A (en
Inventor
郁代 吉田
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Kobayashi Pharmaceutical Co Ltd
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Kobayashi Pharmaceutical Co Ltd
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  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は消臭剤として有用な消臭組成物に関する。より詳細には酸化亜鉛と機能性粒子を有効成分とする消臭組成物であって、悪臭に対してより改善された消臭効果を発揮する消臭組成物に関する。
【0002】
【従来の技術】
各家庭の便所や屎尿処理場から発散される悪臭、各家庭の塵芥捨場や都市の塵芥処理施設等から発散される悪臭、各種工場から排泄される廃液等から発散される悪臭など、悪臭は日常生活に常につきまとう問題であり、ゆえにかかる悪臭問題を解決することが衛生的且つ快適な生活環境を維持するためには必要且つ不可欠である。
【0003】
一般に悪臭の原因物質は単一ではなく、数多くの物質が種々組合わさって構成される。このため、単一の脱臭物質だけでは十分な脱臭効果を得ることができない。例えば苛性ソーダ水溶液等のアルカリ剤は硫化水素や低級脂肪酸の脱臭に有効であるが、塩基性物質の悪臭原因であるアンモニアやトリメチルアミン等のアミン類には殆ど効果がないことが知られている。
【0004】
ところで消臭剤として知られている薬剤として、酸化亜鉛等の金属化合物、並びにシリカ等の多孔性物質がある。当該酸化亜鉛などの金属化合物は多くの悪臭物質と付加物と形成することによって、悪臭原因物質の臭いを消臭するものであり、一方シリカなどの多孔性物質は悪臭物質を孔内に包接することにより消臭するものである。
【0005】
【発明が解決しようとする課題】
本発明は、第一に、液体と接触することによってより高い消臭効果が得られる消臭組成物を提供することを目的とするものである。また本発明は、第二に、消臭機能だけでなく他の有用な機能を効果的に発揮し得る消臭組成物を提供することを目的とするものである。
【0006】
【課題を解決するための手段】
本発明者らは、上記金属化合物や多孔性物質の消臭機能に着目して研究していたところ、金属化合物として酸化亜鉛を用い、これと無機質の機能性粒子とを水中で撹拌混合することにより、とくにバインダーなどを用いなくても、凝集化しある一定の大きさ以上に顆粒化することを見出し、さらに当該顆粒は乾燥後、液体に接して浸潤することによって、凝集が崩れて再粒子化(再分散化)し、それに伴って機能性粒子の表面積が拡大することによって消臭効果が向上することを見出した。かかる凝集化による粒径の増大は、比較的低密度な繊維構造物(シート)に対しても歩留りがよく少量の機能性粒子の使用で所望の消臭機能を発揮するため高品質な消臭シートの製造に有用である。また、液体浸潤による消臭効果の増大は、本発明の消臭組成物が制汗剤やフットスプレー等の消臭スプレー;おしめ、おりものシート、生理用ナプキン、汗とりパット、絆創膏、おねしょシート、失禁パットなどの消臭成分として有用であることを示すものである。
【0007】
さらに本発明者らは、酸化亜鉛とこれら機能性粒子、特に二酸化ケイ素等の消臭性と吸湿性を兼ね備えた粒子を配合した消臭組成物によれば、臭いや湿気が効率よく吸着されるため、使用感に優れた消臭剤が調製できることを確認したた。本発明はかかる知見に基づいて開発されたものである。
【0008】
即ち、本発明は、下記のいずれかの態様からなる消臭組成物である。
(1)水中で酸化亜鉛と機能性粒子を平均粒径0.1mm以上に顆粒化凝集させて調製される、消臭組成物。
(2)機能性粒子が二酸化ケイ素であることを特徴とする1記載の消臭組成物。
【0009】
【発明の実施の形態】
本発明は前述するように酸化亜鉛と機能性粒子が平均粒径0.1mm以上に顆粒化凝集してなる消臭組成物である。
【0010】
本発明で用いられる酸化亜鉛は粒子形状物、特に微粒子形状物であることが好ましい。特にその粒子径は制限されないが、好ましくは平均粒子径として10μm以下、具体的には0.01〜10μm、より好ましくは0.3μm以下、より好ましくは0.1μm以下のものを挙げることができる。なお、酸化亜鉛そのものは、日本薬局方、化粧品原料基準に収載されているものであり、人体への安全性が極めて高いものである。
【0011】
また本発明で用いられる機能性粒子としては、吸水性、吸湿性、抗菌性又は消臭性などの、一般に体液吸収材に求められる所望の機能を発揮するものであれば特に制限されない。好ましくは無機質粒子であり、具体的にはシリカ、シリカゲル、ソディウム・テトラシリケート、炭化ケイ素等のケイ素類;塩化アルミニウムなどのアルミニウム類;塩化カリウム、塩素化石灰、塩化カルシウムなどの塩素化合物;ヤシガラ炭などの活性炭;酸化マグネシウム、酸化チタン、亜鉛華、カルシウムオキサイド等の金属酸化物;塩化亜鉛などの亜鉛化合物;窒素ホウ素、ホウ酸及びホウ砂等のホウ素化合物;炭酸カルシウムや炭酸マグネシウムなどの炭酸塩;トウモロコシデンプンなどの澱粉類;セルロースパウダー;シルクパウダー、ゼオライト、モレキュラーシーブ等を例示することができる。これらの中で、少なくとも消臭機能を有するものとしては、活性炭、シリカゲルや二酸化ケイ素などのケイ素類、塩化アルミニウムなどの塩素化合物、カルシウムオキサイドなどの金属酸化物、塩化アルミニウムなどのアルミニウム類、塩化亜鉛などの亜鉛化合物、ホウ酸等のホウ素化合物等を例示することができる。好ましくはシリカなどの二酸化ケイ素である。また、少なくとも吸湿性を有するものとしてはトウモロコシデンプンなどの澱粉類;セルロースパウダー;シルクパウダー、ゼオライト、活性炭、炭酸カルシウムや炭酸マグネシウムなどの炭酸塩;シリカ、シリカゲル等の二酸化ケイ素類を例示することができる。また、抗菌性を有するものとしては、ゼオライト、酸化亜鉛、酸化チタン、シリカゲル等を挙げることができる。
【0012】
なお、これらの機能性粒子は一種単独で使用しても、また二種以上を任意に組み合わせて使用することもできる。
【0013】
本発明においては、かかる機能性粒子は、破砕状、粉末状、顆粒状、微粉末状のいずれの形状を有するものであってもよいが、好ましくは平均粒子径として0.01〜1000μm、より好ましくは1〜100μmの範囲にあるものをあげることができる。
【0014】
また機能性粒子と上記の酸化亜鉛との混合割合は、機能性粒子の種類や適用する体液吸収材の種類に応じて異なり、一概に規定することはできないが、酸化亜鉛100重量部に対する機能性粒子の混合割合として通常0.5〜80重量部、好ましくは0.5〜40重量部、より好ましくは1〜20重量部の範囲を例示することができる。
【0015】
上記酸化亜鉛と機能性粒子は、水中で撹拌分散しながら混合することによって凝集し一定の大きさに造粒され顆粒状となる。かかる大きさは特に制限されないが、通常平均粒径として0.1mm以上、好ましくは0.2mm以上、より好ましくは0.2〜0.4mmである。
【0016】
かくして得られる所謂機能性顆粒は、乾燥状態では酸化亜鉛が機能性粒子を付着若しくは抱き込んで両者が凝集顆粒化状態で存在するが、液体、好ましくは体液などの弱酸性の液体が接触すると両者の凝集が崩壊して個々に分散して機能性粒子が表出することにより該粒子の表面積が大きくなる現象が見られる。かかる現象が当該消臭組成物の消臭効果及び機能性粒子に起因する各種機能の発揮及び増強に大きく寄与しているものと考えられる。
【0017】
本発明において酸化亜鉛と機能性粒子との凝集顆粒化は、通常結合剤や接着剤等のバインダーを必要とすることなく生じる現象である。よって本発明の消臭組成物はバインダーによって酸化亜鉛や機能性粒子の表面が被覆されず、かかる成分の機能を十分発揮することができるという利点を有するものである。
【0018】
しかしながら、酸化亜鉛と機能性粒子との凝集を抑制するものでない限り、本発明はバインダーの使用を何ら制限するものではなく、例えばアクリルアミド・ポリビニルアルコール共重合体、アクリル酸エステル共重合体、アクリル酸エステル・酢酸ビニル共重合体、エチレン・酢酸ビニル共重合体、カルボキシメチルセルロースナトリウム、酢酸ビニル系樹脂、ポリエチレンオキサイド、ポリ酢酸ビニル、ポリビニルアルコールなどのバインダーを水やアルコールなどの分散液に添加配合して使用することもできる。
【0019】
酸化亜鉛及び機能性粒子を配合した水性分散液は、両者が凝集してなる機能性顆粒の分散性をより均一にするために、ボールミル、アトライタ、サンドグライダ、三本ロール、高速インペラーミル、ジェットミル、ニーダ、ホモジナイザー、ペイントシーカ、超音波分散機などを使用して調製されることが好ましい。
【0020】
本発明の消臭組成物には、本発明の効果を妨げない範囲で、他の成分として例えば着色剤、清澄剤、着香剤、粘度調整剤、界面活性剤、防腐剤、殺菌抗菌剤、植物エキス、精油、pH緩衝剤等の各種の成分を配合することもできる。
【0021】
本発明の消臭組成物は、液体状(スプレー剤、噴霧剤を含む)、粉末・顆粒状、固形状(ゲル状を含む)、シート状、フィルム状等の任意の形態の消臭剤として調製することができ、かかる形態に応じて便所、洗面所、風呂場、台所、流し台、排気口、排水溝、排水口、塵芥処理場、ゴミ(生ゴミ、汚物)、汚泥などの悪臭発生源に直接撒付したり、またこれらの悪臭を発生し得る雰囲気内に配置するといった任意の態様で使用することができる。また、制汗剤やフットスプレーなどの人体に適用する消臭剤としても有用である。さらに本発明の消臭組成物によれば、酸化亜鉛と機能性粒子から構成されるいわゆる機能性顆粒が、その粒径と付着性に起因して繊維構造物の各繊維間(間隙)及び表面に強く固定化されるため、消臭性クロス、消臭性シート、消臭性衣類等の各種繊維製品;おしめ、おりものシート、生理用ナプキン、汗とりパット、絆創膏、おねしょシート、失禁パット等の衛生品として調製することもできる。特におしめや汗とりパット等、浸潤する態様で使用されるものは消臭効果がより効果的に発揮するため、好ましい使用態様である。
【0022】
かかる繊維構造物への機能性顆粒の付着ないし担持は、あらかじめシート状に調製した繊維構造物を酸化亜鉛と機能性粒子を顆粒状態で含む水性分散液で含浸、パディング、コーティング(塗布、噴霧等)、印刷又はスプレーする方法、または繊維構造物を構成する繊維、酸化亜鉛及び機能性粒子を含む水性分散液を用いて湿式抄紙技術で不織布を抄造する方法等によって行うことができる。
【0023】
この場合、酸化亜鉛は、それを担持させる繊維構造物を構成する繊維全体に対して好ましくは0.5〜30重量%、より好ましくは1〜20重量%の割合で担持されるように用いられるのが望ましい。また機能性粒子は、それを担持させる繊維構造物を構成する繊維全体に対して0.05〜40重量%、好ましくは0.05〜20重量%、より好ましくは0.05〜10重量%の割合で担持されるように用いられるのが望ましい。
【0024】
なお、繊維構造物は特に制限されず、織物、編物、不織布(非収束状のフィラメント群や短繊維群から構成される不織布を含む。)又は紙等のパルプ製品等から構成される、フィルム状もしくはシート状成形物がいずれも包含される。
【0025】
【発明の効果】
本発明の消臭組成物は、酸化亜鉛粒子と機能性粒子を凝集状態(顆粒)で含むことを特徴とするものである。当該顆粒は液体によって濡れ浸潤すると凝集がほぐれて個々に分散し、再粒子化してすることによって酸化亜鉛粒子及び機能性粒子そのものの機能(消臭効果)をより有効に発揮する。
【0026】
本発明の消臭組成物を例えば抄紙技術によって繊維構造物に担持させると、繊維構造物を構成する各繊維の間隙に酸化亜鉛及び機能性粒子が、酸化亜鉛粒子に機能性粒子が付着乃至は担持された凝集状態(顆粒)で存在乃至は付着してなり、このため繊維間を体液が通過しても脱落することなく、よって持続的に消臭機能を発揮する繊維製品(シート、クロス、衣類、衛生品)が提供できる。
【0027】
【実施例】
以下、本発明を実施例によって更に詳細に説明するが、本発明は当該実施例に何ら限定されるものではない。
実施例1〜3
撹拌機に水60重量%、酸化亜鉛(平均粒径0.6μm以下、比表面積4m2/g)30重量%、シリカパウダー(平均粒径12μm、比表面積500m2/g、細孔容積2ml/g)10重量%を入れてよく撹拌し、酸化亜鉛とシリカパウダーを含有する水性分散液(表1)を調製した。
【0028】
実施例1及び2においては、この分散液と繊維原料であるパルプ及びポリエステルを含む不織布原料液を混合し、抄紙装置により不織布基材を調製した。また、実施例3においては予めパルプ及びポリエステルを用いて作成した不織布に、上記水性分散液(表1)を含浸させて不織布基材を調製した。一方、比較例1として、水性分散液として、キサンタンガムと界面活性剤を配合することによって酸化亜鉛とシリカパウダーとの凝集顆粒化を抑制させた分散液(表1)を用いて実施例3と同様に不織布に含浸させて基材を調製した。
【0029】
顕微鏡観察により、実施例1〜3の基材の繊維間隙には酸化亜鉛とシリカパウダーが凝集した状態で付着存在していることが観察されたが、比較例1の基材には酸化亜鉛とシリカパウダーが凝集せずに、個々に分散状態で付着存在していることが観察された。
【0030】
次いで、これらの不織布基材を水の入った容器に入れて水中で振盪し、酸化亜鉛粉末及びシリカパウダーの脱落率を調べた。結果を表1に併せて示す。
【0031】
【表1】

Figure 0004883828
【0032】
また、実施例1〜3の不織布基材を汗取りシートとして10名のモニターに使用してもらい、使用後のシートを回収して酸化亜鉛とシリカパウダーとの凝集顆粒の様子を顕微鏡で観察した。その結果、体液が触れて浸潤した部分は顆粒の凝集がほどけて、酸化亜鉛とシルクパウダーがばらばらに分散しているのが観察された。このことから体液による浸潤によって酸化亜鉛とシリカパウダーとの凝集顆粒が再粒子化し、全体として粒子(機能性粒子)の表面積が広がってより高い機能(消臭、吸湿、乾燥、抗菌)の発現に寄与することが示唆された。
【0033】
試験例1 消臭試験
不織布(2×5cm)布片2枚の間に酸化亜鉛とシリカパウダーとの顆粒凝集体を挟んで消臭試験体1を調製した。また酸化亜鉛とシリカパウダーとの顆粒凝集体に代えて同量の酸化亜鉛とシリカパウダーを凝集させることなく分散混合したものを用いて、同様に消臭試験体2を調製した。次いで、これらの試験体の消臭効果を比較して、顆粒凝集体と粒子体との消臭効果を評価した。具体的には、消臭試験体1及び消臭試験体2のそれぞれに不快臭成分である酪酸10μLをしみ込ませて、これをバイアル瓶にいれて密封して60分間加熱した後、シリンジでバイアル瓶中の空気を1mL採取し、当該不快臭をガスクロマトグラフィーで測定した。その結果、不織布間に酸化亜鉛とシリカパウダーが顆粒状態で存在する消臭試験体1の消臭率は50%であったのに対し、各成分が凝集することなく粒子状態で分散して存在する消臭試験体2の消臭率は79%と、高い結果が得られた。なお、未加工布の消臭率は0%であった。このことから酸化亜鉛とシリカパウダーは、粒子状態となることによって消臭効果が増強することがわかった。
【0034】
以上の実施例及び試験例から、本発明の消臭組成物は、顆粒化した酸化亜鉛とシリカパウダーが、バインダーを特に要しなくても、低密度な繊維構造物から殆ど脱落することなく強く担持され、また体液等の溶液による浸潤によって酸化亜鉛とシリカパウダーとの凝集がほどけて再粒子化し、これによってより消臭効果が向上することがわかる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a deodorant composition useful as a deodorant. More specifically, the present invention relates to a deodorizing composition containing zinc oxide and functional particles as active ingredients, and exhibiting an improved deodorizing effect against bad odor.
[0002]
[Prior art]
Offensive odors such as offensive odor emanating from toilets and sewage treatment plants in each household, odors emanating from garbage disposal sites in individual households and city garbage disposal facilities, and odors emanating from waste liquids excreted from various factories It is a problem that always accompanies life, and therefore it is necessary and indispensable to maintain a hygienic and comfortable living environment to solve the problem of bad odor.
[0003]
In general, the odor-causing substance is not a single substance, and many substances are combined in various ways. For this reason, a sufficient deodorizing effect cannot be obtained with only a single deodorizing substance. For example, alkaline agents such as aqueous caustic soda are effective for deodorizing hydrogen sulfide and lower fatty acids, but are known to have little effect on amines such as ammonia and trimethylamine that cause bad odor of basic substances.
[0004]
By the way, as a chemical | medical agent known as a deodorizing agent, there exist porous compounds, such as metal compounds, such as a zinc oxide, and a silica. The metal compounds such as zinc oxide are formed with many malodorous substances and adducts, thereby eliminating the odor of the odor-causing substances, while porous substances such as silica include the malodorous substances in the pores. Deodorizing.
[0005]
[Problems to be solved by the invention]
The first object of the present invention is to provide a deodorizing composition that can obtain a higher deodorizing effect by contact with a liquid. A second object of the present invention is to provide a deodorizing composition that can effectively exhibit not only a deodorizing function but also other useful functions.
[0006]
[Means for Solving the Problems]
The inventors of the present invention have been researching with a focus on the deodorizing function of the above metal compounds and porous materials. Zinc oxide is used as the metal compound and this is mixed with inorganic functional particles in water. By using this method, it is found that agglomerates and granulates to a certain size or more without using a binder, and the granules are dried and infiltrated in contact with the liquid. (Re-dispersion), and it was found that the deodorizing effect was improved by increasing the surface area of the functional particles. The increase in particle size due to such agglomeration is a high quality deodorant because the yield is good even for relatively low density fiber structures (sheets) and the desired deodorizing function is exhibited by using a small amount of functional particles. Useful for manufacturing sheets. In addition, the deodorant effect of the liquid infiltration is increased by the deodorant composition of the present invention: a deodorant spray such as an antiperspirant or a foot spray; diaper, cage sheet, sanitary napkin, sweat pad, adhesive plaster, bed sheet It is useful as a deodorant component for incontinence pads and the like.
[0007]
Furthermore, according to the deodorant composition containing zinc oxide and these functional particles, particularly particles having both deodorant properties and hygroscopic properties such as silicon dioxide, odor and moisture are efficiently adsorbed. Therefore, it was confirmed that a deodorant having an excellent usability can be prepared. The present invention has been developed based on such knowledge.
[0008]
That is, the present invention is a deodorizing composition comprising any one of the following aspects.
(1) A deodorant composition prepared by granulating and agglomerating zinc oxide and functional particles to an average particle size of 0.1 mm or more in water.
(2) The deodorant composition according to 1, wherein the functional particles are silicon dioxide.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
As described above, the present invention is a deodorizing composition in which zinc oxide and functional particles are granulated and aggregated to an average particle size of 0.1 mm or more.
[0010]
The zinc oxide used in the present invention is preferably in the form of particles, particularly in the form of fine particles. The particle diameter is not particularly limited, but preferably the average particle diameter is 10 μm or less, specifically 0.01 to 10 μm, more preferably 0.3 μm or less, more preferably 0.1 μm or less. . Zinc oxide itself is listed in the Japanese Pharmacopoeia and Cosmetic Raw Material Standards, and is extremely safe for the human body.
[0011]
The functional particles used in the present invention are not particularly limited as long as they exhibit desired functions generally required for a body fluid absorbent material such as water absorption, hygroscopicity, antibacterial properties, and deodorizing properties. Preferred are inorganic particles, specifically, silicas, silica gels, sodium tetrasilicates, silicon carbides and other silicons; aluminums such as aluminum chlorides; chlorine compounds such as potassium chloride, chlorinated lime and calcium chloride; Activated carbon such as magnesium oxide, titanium oxide, zinc oxide, calcium oxide, etc .; zinc compounds such as zinc chloride; boron compounds such as nitrogen boron, boric acid and borax; carbonates such as calcium carbonate and magnesium carbonate Starches such as corn starch; cellulose powder; silk powder, zeolite, molecular sieve and the like. Among these, those having at least a deodorizing function include activated carbon, silicon such as silica gel and silicon dioxide, chlorine compounds such as aluminum chloride, metal oxides such as calcium oxide, aluminums such as aluminum chloride, and zinc chloride. Examples thereof include zinc compounds such as boron compounds and boron compounds such as boric acid. Preferred is silicon dioxide such as silica. Examples of those having at least hygroscopicity include starches such as corn starch; cellulose powder; carbonates such as silk powder, zeolite, activated carbon, calcium carbonate and magnesium carbonate; and silicon dioxides such as silica and silica gel. it can. Examples of antibacterial materials include zeolite, zinc oxide, titanium oxide, and silica gel.
[0012]
These functional particles may be used alone or in any combination of two or more.
[0013]
In the present invention, such functional particles may have any shape of crushed, powder, granule, fine powder, but preferably 0.01 to 1000 μm as an average particle diameter. Preferably, the thing in the range of 1-100 micrometers can be mention | raise | lifted.
[0014]
Further, the mixing ratio of the functional particles and the zinc oxide described above varies depending on the type of functional particles and the type of body fluid absorbent to be applied, and cannot be generally defined, but the functionality with respect to 100 parts by weight of zinc oxide. Examples of the mixing ratio of the particles include 0.5 to 80 parts by weight, preferably 0.5 to 40 parts by weight, and more preferably 1 to 20 parts by weight.
[0015]
The zinc oxide and functional particles are agglomerated by mixing with stirring and dispersing in water, and granulated to a certain size to form granules. The size is not particularly limited, but is usually 0.1 mm or more, preferably 0.2 mm or more, more preferably 0.2 to 0.4 mm as an average particle diameter.
[0016]
The so-called functional granules thus obtained are in a dry state in which zinc oxide adheres or embraces the functional particles and both are present in an agglomerated state. However, when a liquid, preferably a weakly acidic liquid such as a body fluid is in contact with both, A phenomenon is observed in which the surface area of the particles increases due to the disintegration of the particles and the dispersion of the particles to express the functional particles. It is considered that such a phenomenon greatly contributes to the deodorization effect of the deodorant composition and the display and enhancement of various functions resulting from the functional particles.
[0017]
In the present invention, agglomeration of zinc oxide and functional particles is a phenomenon that usually occurs without the need for a binder such as a binder or an adhesive. Therefore, the deodorant composition of the present invention has an advantage that the surface of zinc oxide or functional particles is not covered with the binder, and the function of such components can be sufficiently exhibited.
[0018]
However, the present invention does not limit the use of the binder as long as it does not suppress the aggregation of zinc oxide and functional particles. For example, acrylamide / polyvinyl alcohol copolymer, acrylate copolymer, acrylic acid Ester / vinyl acetate copolymer, ethylene / vinyl acetate copolymer, sodium carboxymethylcellulose, vinyl acetate resin, polyethylene oxide, polyvinyl acetate, polyvinyl alcohol and other binders are added to water and alcohol dispersions. It can also be used.
[0019]
Aqueous dispersions containing zinc oxide and functional particles are made of ball mill, attritor, sand glider, three-roll, high-speed impeller mill, jet, etc. It is preferably prepared using a mill, kneader, homogenizer, paint seeker, ultrasonic disperser, or the like.
[0020]
In the deodorant composition of the present invention, other components such as a colorant, a clarifying agent, a flavoring agent, a viscosity modifier, a surfactant, a preservative, a bactericidal antibacterial agent, as long as the effects of the present invention are not hindered. Various components such as plant extracts, essential oils, pH buffering agents and the like can also be blended.
[0021]
The deodorant composition of the present invention can be used as a deodorant in any form such as liquid (including sprays and sprays), powder / granular, solid (including gel), sheet, and film. Can be prepared, and depending on the form, toilets, toilets, bathrooms, kitchens, sinks, exhaust vents, drains, drains, waste disposal plants, garbage (raw garbage, filth), sources of bad odor such as sludge It can be used in any manner, such as being directly glazed or placed in an atmosphere where these malodors can be generated. It is also useful as a deodorant applied to the human body such as antiperspirant and foot spray. Furthermore, according to the deodorant composition of the present invention, so-called functional granules composed of zinc oxide and functional particles are formed between the fibers (gap) and the surface of the fiber structure due to the particle size and adhesion. Various textile products such as deodorant cloth, deodorant sheet, deodorant clothing; diaper, cage sheet, sanitary napkin, sweat pad, adhesive plaster, bed sheet, incontinence pad, etc. It can also be prepared as a sanitary product. In particular, those used in an infiltrating manner such as a diaper and a sweat pad are preferable because they have a more effective deodorizing effect.
[0022]
The functional granule is attached to or supported on the fiber structure by impregnating, padding, coating (application, spraying, etc.) the fiber structure prepared in a sheet form with an aqueous dispersion containing zinc oxide and functional particles in a granular state. ), A method of printing or spraying, or a method of making a nonwoven fabric by a wet papermaking technique using an aqueous dispersion containing fibers, zinc oxide and functional particles constituting a fiber structure.
[0023]
In this case, zinc oxide is preferably used so that it is supported at a ratio of 0.5 to 30% by weight, more preferably 1 to 20% by weight, based on the entire fiber constituting the fiber structure on which it is supported. Is desirable. The functional particles are 0.05 to 40% by weight, preferably 0.05 to 20% by weight, more preferably 0.05 to 10% by weight, based on the entire fiber constituting the fiber structure on which the functional particles are supported. It is desirable to be used so that it is supported in proportion.
[0024]
The fiber structure is not particularly limited, and is a film formed from a woven fabric, a knitted fabric, a nonwoven fabric (including a nonwoven fabric composed of non-converging filament groups or short fiber groups) or a pulp product such as paper. Alternatively, any sheet-like molded product is included.
[0025]
【Effect of the invention】
The deodorant composition of the present invention is characterized by containing zinc oxide particles and functional particles in an aggregated state (granules). When the granules wet and infiltrate with the liquid, the agglomerates are loosened and dispersed individually, and re-particulate, whereby the functions (deodorizing effect) of the zinc oxide particles and the functional particles themselves are more effectively exhibited.
[0026]
When the deodorant composition of the present invention is supported on a fiber structure by, for example, papermaking technology, zinc oxide and functional particles are adhered to the gaps between the fibers constituting the fiber structure, and functional particles are adhered to the zinc oxide particles. Fiber products (sheets, cloths, etc.) that are present or adhered in the agglomerated state (granule) supported, and therefore do not fall off even when body fluid passes between the fibers, and thus exhibit a deodorizing function continuously. Clothing, sanitary goods).
[0027]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not limited to the said Example at all.
Examples 1-3
60% by weight of water, 30% by weight of zinc oxide (average particle size 0.6 μm or less, specific surface area 4 m 2 / g), silica powder (average particle size 12 μm, specific surface area 500 m 2 / g, pore volume 2 ml / g) g) 10 wt% was added and stirred well to prepare an aqueous dispersion (Table 1) containing zinc oxide and silica powder.
[0028]
In Examples 1 and 2, this dispersion was mixed with a nonwoven fabric raw material liquid containing pulp and polyester, which were fiber raw materials, and a nonwoven fabric substrate was prepared using a papermaking apparatus. In Example 3, a nonwoven fabric base material was prepared by impregnating a nonwoven fabric prepared beforehand using pulp and polyester with the aqueous dispersion (Table 1). On the other hand, as Comparative Example 1, as an aqueous dispersion, the same as in Example 3 using a dispersion (Table 1) in which aggregation granulation of zinc oxide and silica powder was suppressed by blending xanthan gum and a surfactant. A base material was prepared by impregnating into a nonwoven fabric.
[0029]
By microscopic observation, it was observed that zinc oxide and silica powder adhered to the fiber gaps of the base materials of Examples 1 to 3, but the base material of Comparative Example 1 had zinc oxide and It was observed that the silica powder did not agglomerate and adhered in a dispersed state.
[0030]
Subsequently, these nonwoven fabric base materials were put in a container containing water and shaken in water, and the dropping rates of the zinc oxide powder and the silica powder were examined. The results are also shown in Table 1.
[0031]
[Table 1]
Figure 0004883828
[0032]
In addition, the nonwoven fabric substrates of Examples 1 to 3 were used as a sweat removing sheet by 10 monitors, the used sheets were collected, and the state of aggregated granules of zinc oxide and silica powder was observed with a microscope. As a result, it was observed that the parts infiltrated by contact with the body fluid were loosened and the zinc oxide and the silk powder were dispersed in pieces. As a result, infiltration by body fluids causes the aggregated granules of zinc oxide and silica powder to be reparticulated, increasing the surface area of the particles (functional particles) as a whole, resulting in higher functions (deodorization, moisture absorption, drying, antibacterial) It was suggested that it contributed.
[0033]
Test Example 1 Deodorization test sample 1 was prepared by sandwiching a granular aggregate of zinc oxide and silica powder between two pieces of non-woven fabric (2 × 5 cm) non-woven fabric. Moreover, it replaced with the granule aggregate of zinc oxide and silica powder, and similarly prepared the deodorizing test body 2 using what disperse-mixed the zinc oxide and silica powder, without aggregating. Subsequently, the deodorizing effect of these test bodies was compared, and the deodorizing effect of the granule aggregate and the particle body was evaluated. Specifically, 10 μL of butyric acid, which is an unpleasant odor component, is soaked in each of the deodorant test body 1 and the deodorization test body 2, sealed in a vial, heated for 60 minutes, and then vialed with a syringe. 1 mL of air in the bottle was sampled, and the unpleasant odor was measured by gas chromatography. As a result, the deodorization rate of the deodorant test body 1 in which zinc oxide and silica powder exist between the nonwoven fabrics in a granular state was 50%, whereas each component was dispersed in a particle state without aggregation. The deodorization rate of the deodorant test body 2 was 79%, and a high result was obtained. The deodorization rate of the unprocessed cloth was 0%. From this, it was found that the deodorizing effect of zinc oxide and silica powder is enhanced by becoming a particle state.
[0034]
From the above examples and test examples, the deodorant composition of the present invention is strong in that the granulated zinc oxide and silica powder hardly fall off from the low-density fiber structure even if a binder is not particularly required. It is understood that zinc oxide and silica powder are agglomerated and reparticulated due to infiltration by a solution such as a body fluid, thereby further improving the deodorizing effect.

Claims (3)

水中で酸化亜鉛と二酸化ケイ素の粒子撹拌分散しながら混合することにより水性分散液を調製し、この分散液と不織布原料を混合し、抄紙装置により不織布基材を調製することにより、不織布基材に酸化亜鉛と二酸化ケイ素の粒子を凝集顆粒化して調製される消臭組成物。An aqueous dispersion is prepared by mixing while stirring and dispersing particles of zinc oxide and silicon dioxide in water, the dispersion and the nonwoven fabric raw material are mixed, and a nonwoven fabric substrate is prepared by a papermaking apparatus. A deodorant composition prepared by agglomerating and granulating zinc oxide and silicon dioxide particles . 酸化亜鉛と二酸化ケイ素の混合比率が、酸化亜鉛100重量部に対して二酸化ケイ素0.5〜40重量部である、請求項1に記載の消臭組成物。The deodorizing composition according to claim 1, wherein the mixing ratio of zinc oxide and silicon dioxide is 0.5 to 40 parts by weight of silicon dioxide with respect to 100 parts by weight of zinc oxide. 請求項1又は2に記載の消臭組成物が、不織布基材に固定化された衛生品。A sanitary product in which the deodorant composition according to claim 1 or 2 is immobilized on a nonwoven fabric substrate .
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