JP3044801B2 - Colored activated carbon - Google Patents
Colored activated carbonInfo
- Publication number
- JP3044801B2 JP3044801B2 JP3036907A JP3690791A JP3044801B2 JP 3044801 B2 JP3044801 B2 JP 3044801B2 JP 3036907 A JP3036907 A JP 3036907A JP 3690791 A JP3690791 A JP 3690791A JP 3044801 B2 JP3044801 B2 JP 3044801B2
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- colored
- color
- white
- parts
- 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.)
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は活性炭が本来有する黒色
以外の色に着色した活性炭に関するものであり、更に詳
しく述べるならば、吸着性を損なわずにより種々の鮮明
な色彩に着色した活性炭である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to activated carbon which is colored in a color other than black which activated carbon originally has. More specifically, the present invention relates to activated carbon which is colored in various vivid colors without impairing the adsorptivity. .
【０００２】[0002]
【従来の技術】活性炭は非常に多くの物質に対して極め
て優れた吸着性を有するため、多くの用途に利用されて
いるが、その表面が黒色であること及び活性炭に触れる
と手が黒く汚れることが、使用上の大きな障害となって
いる。2. Description of the Related Art Activated carbon is used in many applications because it has an extremely excellent adsorption property to a very large number of substances. However, its surface is black and its hands become dirty when it comes into contact with activated carbon. This is a major obstacle to use.
【０００３】従って、活性炭に鮮明な着色が出来れば用
途を大幅に拡大することが可能と考えられる。しかし、
活性炭の表面に着色剤を直接添加すると、表面の黒色と
混合してくすんだ汚い色になり易く、また吸着性の低下
も大きい。活性炭の吸着性を損なわぬよう、着色剤を添
着せしめて着色活性炭とする方法として、特開平２−80
313 号公報に、活性炭の表面にラテックス或いはエマル
ジョンを付着させ、その上に着色した繊維長が短いステ
ープルファイバーを振り掛けて、その表面に接着させて
着色する方法が開示されている。[0003] Therefore, it is considered that if the activated carbon can be colored vividly, its use can be greatly expanded. But,
When a colorant is directly added to the surface of activated carbon, the color is easily mixed with black on the surface to give a dull and dirty color, and the adsorbability is greatly reduced. JP-A-2-80 discloses a method of impregnating a coloring agent into a colored activated carbon so as not to impair the adsorptivity of the activated carbon.
No. 313 discloses a method in which a latex or an emulsion is attached to the surface of activated carbon, a staple fiber having a short colored fiber length is sprinkled thereon, and the staple fiber is adhered to the surface and colored.
【０００４】[0004]
【発明が解決しようとする課題】活性炭に着色剤を加え
て着色する場合、活性炭の吸着性が大幅に低下すること
と、着色剤が活性炭表面の黒色粉末と混合するため鮮明
な着色が困難な点が問題となる。When coloring is performed by adding a coloring agent to activated carbon, the adsorptivity of the activated carbon is greatly reduced, and the coloring agent is mixed with the black powder on the activated carbon surface, so that it is difficult to sharply color the activated carbon. The point becomes a problem.
【０００５】この２つの問題点を克服して活性炭の吸着
性を殆ど損なわずに、表面が鮮明な色彩に着色された活
性炭を開発して提供しようとするものである。It is an object of the present invention to develop and provide an activated carbon having a vivid color on its surface without overcoming these two problems and hardly impairing the adsorbability of the activated carbon.
【０００６】[0006]
【問題点を解決するための手段】本発明者等は白色顔料
として使用されている二酸化チタンが極めて隠蔽力が高
く、活性炭の黒色を隠蔽する能力も非常に強いことに着
目し、それに基づいて活性炭表面に鮮度が高い発色をさ
せる方法について研究した結果、本発明に到達した。The present inventors have noticed that titanium dioxide used as a white pigment has an extremely high hiding power, and the ability of activated carbon to hide black is also very strong. High freshness of color on activated carbon surface
As a result of studying a method of causing the same , the present invention has been reached.
【０００７】すなわち、活性炭に二酸化チタンを含むエ
マルジョンを添着した後、その添着層の上に更に着色剤
を含むエマルジョンの添着層を形成せしめてなる着色活
性炭である。That is, after an emulsion containing titanium dioxide is impregnated on activated carbon, a colorant is further added on the impregnated layer.
Is a colored activated carbon formed by forming an attachment layer of an emulsion containing
【０００８】ここで、エマルジョンとは水相中に高分子
物質の液相粒子が安定に分散している状態をいい、高分
子物質にはゴム系のラテックスも含まれている。以下、
本発明について詳しく説明する。Here, an emulsion refers to a state in which liquid phase particles of a polymer substance are stably dispersed in an aqueous phase, and the polymer substance includes a rubber-based latex. Less than,
The present invention will be described in detail.
【０００９】本発明に使用する活性炭は細孔構造を有す
る炭素材料である。通常１ｇ当たり数100m2 或いはそれ
以上の大きな表面積を有し、高い吸着性を示す特異な性
質を持っている。The activated carbon used in the present invention is a carbon material having a pore structure. It usually has a large surface area of several hundred m 2 or more per gram and has a unique property of exhibiting high adsorptivity.
【００１０】活性炭の原料は通常ヤシ殻または木材等の
炭化物或いは石炭が使用され、これらの原料を高温で水
蒸気または炭酸ガスで賦活して製造される。或いは塩化
亜鉛、リン酸、濃硫酸等で処理して作られる場合もあ
る。原料または製造方法により得られた活性炭の性質は
多少異なるが、どのような原料や方法で作られた活性炭
も本発明に使用出来る。また活性炭は使用目的により破
砕炭、造粒炭、顆粒炭或いは活性炭繊維、活性炭フェル
ト、活性炭織物、活性炭シート等の多くの形状を有する
が、何れの形態の活性炭も本発明に使用することが出来
る。[0010] The raw material of activated carbon is usually a charcoal such as coconut shell or wood or coal, and is produced by activating these raw materials at high temperature with steam or carbon dioxide gas. Alternatively, it may be made by treating with zinc chloride, phosphoric acid, concentrated sulfuric acid or the like. Although the properties of the activated carbon obtained by the raw materials or production methods are somewhat different, activated carbons produced by any raw materials and methods can be used in the present invention. Activated carbon has many shapes such as crushed carbon, granulated carbon, granular carbon or activated carbon fiber, activated carbon felt, activated carbon fabric, activated carbon sheet, etc., depending on the purpose of use, and any form of activated carbon can be used in the present invention. .
【００１１】本発明に使用する二酸化チタンは、白色粉
末状であれば使用出来、ルチル型、アナタース型の何れ
も使用可能である。The titanium dioxide used in the present invention can be used as long as it is a white powder, and any of rutile type and anatase type can be used.
【００１２】酸化チタンは硫酸法、塩素法等で製造され
るが、何れの製法で作られたものでもよい。また目的に
より、顔料適性を高めるためアルミニウム、亜鉛、シリ
カなどの可溶性塩類で表面処理したものが使用されるこ
とがあるが、これらの酸化チタンも使用可能である。[0012] Titanium oxide is produced by a sulfuric acid method, a chlorine method or the like, but may be produced by any method. Depending on the purpose, those which have been surface-treated with a soluble salt such as aluminum, zinc or silica in order to enhance the suitability of the pigment may be used, but titanium oxides thereof may also be used.
【００１３】本発明でエマルジョンとは、水相中に液相
成分が安定に分散した状態の液を言う。分散相の液相成
分は通常高分子物質で、分散媒の水が蒸発した場合高い
接着性を示す。本発明にはこのような性質を有するエマ
ルジョンが好適である。In the present invention, an emulsion refers to a liquid in which a liquid phase component is stably dispersed in an aqueous phase. The liquid phase component of the dispersed phase is usually a polymer substance, and exhibits high adhesiveness when the water of the dispersion medium evaporates. Emulsions having such properties are suitable for the present invention.
【００１４】高分子物質としては例えば、酢酸ビニル
系、アクリル系、合成ゴム系、塩化ビニリデン系、塩化
ビニル系化合物及びその共重合物等である。Examples of the polymer substance include vinyl acetate, acrylic, synthetic rubber, vinylidene chloride, vinyl chloride compounds and copolymers thereof.
【００１５】分散質が合成ゴム系の高分子化合物のとき
は通常ラテックスと呼ばれている。ラテックスは接着性
が高く、分散質の平均粒径が大きくなっても分散系が安
定でまた、活性炭表面に塗布した場合吸着量の低下の度
合いが小さいため本発明には好適である。When the dispersoid is a synthetic rubber-based polymer compound, it is usually called a latex. Latex is suitable for the present invention because the latex has high adhesiveness, the dispersion is stable even if the average particle size of the dispersoid is large, and the degree of decrease in the amount of adsorption is small when applied to the surface of activated carbon.
【００１６】本発明に使用される着色剤は特に限定しな
いが、有機または無機の顔料や染料が広く使用出来る。
更に色彩を有する化合物であるが、通常は着色剤として
使用されることが殆どない化合物も、活性炭表面に安定
な状態で添着出来るものであれば使用可能である。例え
ば、ヨウ化第１銅、リン酸第２銅、硫化銅等である。The colorant used in the present invention is not particularly limited, but organic or inorganic pigments and dyes can be widely used.
In addition, compounds which have a color, but which are rarely used as a coloring agent, can be used as long as they can be stably attached to the activated carbon surface. For example, cuprous iodide, cupric phosphate, copper sulfide and the like are used.
【００１７】本発明において活性炭の表面を白色にする
ためは、二酸化チタンを含むエマルジョンを添着せしめ
る必要がある。エマルジョンには二酸化チタンの他アル
ミニウム、亜鉛、シリカ或いはその他の添加剤を加えた
ものでもよい。着色剤の組成は特に限定しないが、例え
ば、エマルジョン( 固形分) １〜100 部、水０〜200部
に増粘剤等０〜20部を加えて充分に攪拌した後、二酸化
チタン１〜100 部を加えて均一に分散させたものであ
る。In order to make the surface of activated carbon white in the present invention, it is necessary to impregnate an emulsion containing titanium dioxide. The emulsion may contain titanium dioxide, aluminum, zinc, silica or other additives. The composition of the colorant is not particularly limited. For example, 1 to 100 parts of an emulsion (solid content), 0 to 200 parts of water, 0 to 20 parts of a thickener and the like are added, and the mixture is sufficiently stirred. And uniformly dispersed.
【００１８】活性炭表面に堅牢に添着する方法は、例え
ば、この白色の組成物を活性炭粒子に均一に振りかけ、
粒子をよく混合してその表面に均一に付着させる。この
際組成物の添加量が適当であれば、水分は容易に活性炭
粒子の内部に吸収されるため、粒子を混合している間に
その表面がさらさらした状態になって、粒子が相互に接
着しないようになる。これを乾燥することにより白色活
性炭が得られる。The method of firmly adhering to the activated carbon surface is, for example, to uniformly sprinkle the white composition on the activated carbon particles,
The particles are mixed well and adhered uniformly to the surface. At this time, if the added amount of the composition is appropriate, moisture is easily absorbed into the inside of the activated carbon particles, so that the surface is exposed while mixing the particles, and the particles adhere to each other. Not to be. By drying this, white activated carbon is obtained.
【００１９】着色剤添加による活性炭の吸着量の低下
は、後の実施例に示すように極めて僅かか、或いは殆ど
認められない。活性炭粒子を成型する場合、バインダー
としてラテックスが使用されることがあり、その場合吸
着量は相当低下するが、本発明の着色活性炭では吸着量
の低下が殆ど認められない点が注目される。これはラテ
ックス中に分散されている粒子が活性炭表面に部分的に
接着する場合、合成ゴム系の高分子化合物と二酸化チタ
ンその他着色剤が含まれていることによる相乗効果によ
るものと考えられる。The decrease in the amount of activated carbon adsorbed due to the addition of the coloring agent is very small or hardly observed as will be shown in the examples below. In the case of molding activated carbon particles, latex is sometimes used as a binder, in which case the amount of adsorption is considerably reduced, but it is noted that the colored activated carbon of the present invention hardly reduces the amount of adsorption. This is considered to be due to a synergistic effect due to the inclusion of the synthetic rubber-based polymer compound, titanium dioxide and other coloring agents when the particles dispersed in the latex partially adhere to the activated carbon surface.
【００２０】この着色剤の添着量は乾燥後の固形分換算
で５〜30％、一般には20％程度が好ましい。The amount of the colorant to be added is preferably 5 to 30%, and generally about 20% in terms of solid content after drying.
【００２１】このようにして得られた白色活性炭の添着
層の上に更に、有機または無機の顔料や染料等の着色剤
を含むエマルジョンの添着層を形成させて、白色以外の
種々の鮮明な色に着色される。この際、着色剤は固形分
換算で０．０１〜１０％が好ましく、用途及び着色濃度
等を考慮して適宜選択することが出来る。 Impregnation of the thus obtained white activated carbon
An additional layer of an emulsion containing a colorant such as an organic or inorganic pigment or dye is further formed on the layer, so that the layer is colored in various clear colors other than white. At this time, the colorant is preferably 0.01 to 10% in terms of solid content, and can be appropriately selected in consideration of the application, the coloring concentration, and the like.
【００２２】[0022]
【００２３】[0023]
【００２４】[0024]
【００２５】エマルジョンに二酸化チタンと共に白色以
外の色の着色剤を同時に加えることにより、一回の操作
で白色以外の色に着色できる。しかし、予め二酸化チタ
ンを含む分散液で白色に着色した後、更に白色以外の色
の着色剤を含む分散液で着色する方が遙かに鮮明に着色
することが出来る。By simultaneously adding a colorant of a color other than white to the emulsion together with titanium dioxide, the emulsion can be colored to a color other than white by a single operation. However, after coloring in advance with a dispersion containing titanium dioxide and then coloring with a dispersion containing a colorant of a color other than white, coloring can be performed much more clearly.
【００２６】[0026]
【作用】活性炭に種々の着色剤を直接添着すると、着色
剤の色と活性炭の黒色が混ざり合って黒味がかって、く
すんだ色、すなわち明度及び彩度が共に低い色になり、
鮮明な色彩の着色炭を得ることは困難である。従って、
そのまま使用できる用途は殆どない。[Action] When various coloring agents are directly attached to activated carbon, the color of the coloring agent and the black color of the activated carbon are mixed to give a black tint, resulting in a dull color, that is, a color with low brightness and low saturation.
It is difficult to obtain vividly colored charcoal. Therefore,
There are almost no applications that can be used as is.
【００２７】酸化チタンは屈折率が白色顔料中最も高い
ため着色力、隠蔽力が高い顔料が出来、また比重が小さ
いので分散が容易で安定な組成物が得られる。Titanium oxide has the highest refractive index among the white pigments, so that a pigment having high coloring power and hiding power can be produced. Further, since the specific gravity is small, a stable composition can be easily obtained.
【００２８】従って先ず、酸化チタンを活性炭表面に均
一に添着して黒色を隠蔽し、その後他の着色剤を含むエ
マルジョンをその上に添着することにより、鮮明な色彩
の着色炭を得ることができる。Therefore, first, titanium oxide is uniformly applied to the surface of the activated carbon to conceal the black color, and thereafter, an air containing other colorant is used.
By impregnating the marjon on it, it is possible to obtain a colored charcoal of vivid color.
【００２９】特に明度及び彩度が高い着色活性炭を必要
とする場合は、一旦白色活性炭を作った後、更に着色剤
を含むエマルジョンを添着する必要がある。二酸化チタ
ンと白色以外の着色剤を混合して、エマルジョンに分散
した液で着色した場合はかなり彩度が低下することが避
けがたい。In the case that requires colored activated carbon lightness and saturation is high, especially is once made white carbon, it is necessary to impregnated the emulsion further comprises a colorant. A mixture of titanium dioxide and white colors other than the colorant, when colored with a liquid dispersed in the emulsion can be quite saturation decreases avoided
It's hard .
【００３０】更に、活性炭表面が着色剤で被覆されてい
るため、手で触れても手先が黒く汚れることが無い。Further, since the surface of the activated carbon is covered with the coloring agent, the hands are not blackened even when touched by hand.
【００３１】[0031]
【実施例】以下実施例を挙げて本発明を更に具体的に説
明する。The present invention will be described more specifically with reference to the following examples.
【００３２】（実施例１）活性炭（クラレケミカル
（株）製活性炭、クラレコール２GG）100 部に対し酸化
チタン15部、アクリル系エマルジョン固形分（50％）10
部、３％ CMC（カルボキシルメチルセルローズ）２部、
水25部を均一に分散させた白色組成物を作り、活性炭を
よくかきまぜながら均一になるよう少しずつ振りかけ
た。Example 1 15 parts of titanium oxide and 10 parts of an acrylic emulsion solid (50%) per 100 parts of activated carbon (activated carbon manufactured by Kuraray Chemical Co., Ltd., Kuraray Coal 2GG)
Parts, 2% 3% CMC (Carboxymethyl Cellulose),
A white composition was prepared by uniformly dispersing 25 parts of water, and the activated carbon was sprinkled little by little so as to be uniform while being stirred well.
【００３３】水分が活性炭に吸収される迄よく混合した
後、表面がさらさらな状態になってから、添着した活性
炭を温度１２０℃の乾燥中で３時間乾燥して取り出す
と、活性炭が白色に着色した中間体が得られた。鮮明な
白色で、手で触れても色落ちがなく、また指先が黒く汚
れることが全く無く、堅牢に添着されていた。[0033] After the moisture is mixed well until it is absorbed by the activated carbon, colored after becoming smooth state surface, it is taken out and dried for 3 hours with activated carbon impregnated in a dry temperature 120 ° C., activated carbon white An intermediate was obtained. It was vivid white, had no discoloration when touched by hand, and had no sticking of the fingertips at all, and was firmly attached.
【００３４】また、着色前の活性炭と着色後の中間体で
ある活性炭のベンゼン吸着量をＪＩＳ（Ｋ１４７４）で
測定した結果を表１に示す。吸着量の低下は殆ど認めら
れない。In addition, the activated carbon before coloring and the intermediate after coloring
Table 1 shows the results of measuring the amount of benzene adsorbed on a certain activated carbon by JIS (K1474). Almost no decrease in the amount of adsorption is observed.
【表１】 [Table 1]
【００３５】前記で得られた白色に着色した中間体の活
性炭１００部に対し、赤色有機顔料、Ｓｕｍｉｔｏｎｅ
Ｃａｒｍｉｎｅ Ｂ（住友化学（株）製、Ｃ．Ｉ．Ｐ
ｉｇｍｅｎｔ Ｒｅｄ ５級顔料）４部をアクリル系エ
マルジョン（固形分５０％）４部に均一に分散させた赤
色着色剤を作り、活性炭をよくかきまぜながら均一に付
着するように少しずつ振りかけた。 The activity of the white colored intermediate obtained above
100 parts of charcoal , red organic pigment, Sumitone
Carmine B (CIP, manufactured by Sumitomo Chemical Co., Ltd.)
4 parts of an acrylic red (solid content 50%) is uniformly dispersed in 4 parts of an acrylic emulsion (solid content: 50%) .
Chakusuru so in sprinkled little by little.
【００３６】水分が活性炭に吸収される迄よく混合した
後、表面がさらさらな状態になってから、乾燥器中で12
0 ℃、２時間乾燥し取り出すと鮮明な赤色に着色した活
性炭が得られた。After mixing well until the water is absorbed by the activated carbon, after the surface becomes smooth, 12
After drying at 0 ° C. for 2 hours and taking out, activated carbon colored vivid red was obtained.
【００３７】活性炭の黒色はほとんど隠蔽されていた。
手で触れても色落ちがなく堅牢に添着されていた。The black color of the activated carbon was almost hidden.
There was no discoloration even when touched by hand, and it was firmly attached.
【００３８】また、着色前の白色の中間体と着色後の赤
色活性炭のベンゼン吸着量をＪＩＳ（Ｋ １４７４）で
測定した結果を表１に示す。ベンゼン吸着量は着色前の
中間体と較べて殆ど低下が認められない。A white intermediate before coloring and a red intermediate after coloring
Table 1 shows the results of measuring the benzene adsorption amount of the color activated carbon according to JIS (K1474). Benzene adsorption before coloring
There is hardly any decrease compared to the intermediate .
【００３９】（比較例１）活性炭（クラレケミカル
（株）製活性炭、クラレコール２GG）100 部に対し、赤
色有機顔料、Sumitone Carmine B (住友化学（株）製、
C ．Ｉ．Pigment Red5 級顔料）15部、アクリル系エマ
ルジョン（固形分50％）10部、３％ CMC（カルボキシル
メチルセルローズ）２部、水25部を均一に分散させた赤
色組成物を作り、活性炭をよくかきまぜながら均一にな
るよう少しずつ振りかけた。Comparative Example 1 100 parts of activated carbon (Kuraray Chemical Co., Ltd., activated carbon, Kuraray Coal 2GG) was added to red organic pigment, Sumitone Carmine B (Sumitomo Chemical Co., Ltd.)
C. I. Pigment Red 5 grade pigment) 15 parts, acrylic emulsion (solid content 50%) 10 parts, 3% CMC (carboxymethylcellulose) 2 parts, 25 parts of water to make a red composition uniformly dispersed, stir activated carbon well Sprinkled little by little to make it even.
【００４０】水分が活性炭に吸収される迄よく混合した
後、表面がさらさらな状態になってから、添着した活性
炭を温度120 ℃の乾燥器中で３時間乾燥して取り出す
と、活性炭の黒色と着色剤の赤色の混ざった、黒っぽい
赤色に着色した活性炭が得られた。手で触れても色落ち
がなく堅牢に添着されていた。After the water was thoroughly mixed until it was absorbed by the activated carbon, the surface became smooth and the activated carbon impregnated with the activated carbon was dried in a dryer at a temperature of 120 ° C. for 3 hours. A blackish-red activated carbon mixed with the colorant red was obtained. There was no discoloration even when touched by hand, and it was firmly attached.
【００４１】また、着色前と着色後の活性炭のベンゼン
吸着量をJIS (K1474)で測定した結果を表１に示す。Table 1 shows the benzene adsorption amounts of activated carbon before and after coloring measured by JIS (K1474).
【００４２】（比較例２） 活性炭（クラレコール２ＧＧ）１００部に対し、酸化チ
タン１２部、アクリル系エマルジョン（固形分５０％）
１２部、３％ＣＭＣ２部、赤色有機顔料、Ｓｕｍｉｔｏ
ｎｅ Ｃａｒｍｉｎｅ Ｂ（住友化学（株）製、Ｃ．
Ｉ．Ｐｉｇｍｅｎｔ Ｒｅｄ ５級顔料）４部、水２５
部を均一に分散させた赤色組成物を作り、活性炭をよく
かきまぜながら均一になるように少しずつ振りかけた。( Comparative Example 2 ) 12 parts of titanium oxide and acrylic emulsion (solid content: 50%) per 100 parts of activated carbon (Kuraray Coal 2GG)
12 parts, 2 parts of 3% CMC, red organic pigment, Sumito
ne Carmine B (Sumitomo Chemical Co., Ltd., C.I.
I. Pigment Red 5th grade pigment) 4 parts, water 25
A red composition in which parts were uniformly dispersed was prepared, and the activated carbon was sprinkled little by little so as to be uniform while being stirred well.
【００４３】水分が活性炭に吸収される迄よく混合した
後、表面がさらさらな状態になってから、添着した活性
炭を温度１２０℃の乾燥器中で３時間乾燥し取り出す
と、赤色活性炭が得られた。彩度は実施例２で得られた
活性炭の赤色に較べてかなり低かった。 After the water is thoroughly mixed until it is absorbed by the activated carbon, the surface becomes smooth, and then the activated carbon impregnated is dried for 3 hours in a dryer at a temperature of 120 ° C. to obtain red activated carbon. Was. Saturation was obtained in Example 2.
It was considerably lower than the red color of activated carbon.
【００４４】活性炭の黒色はほとんど隠蔽されていた。
手で触れても色落ちがなく堅牢に添着されていた。The black color of the activated carbon was almost hidden.
There was no discoloration even when touched by hand, and it was firmly attached.
【００４５】また、着色前と着色後の活性炭のベンゼン
吸着量をＪＩＳ（Ｋ １４７４）で測定した結果を表１
に示す。吸着量の低下は殆ど認められない。Table 1 shows the results of JIS (K 1474) measurement of the amount of benzene adsorbed on the activated carbon before and after coloring.
Shown in Reduction of the amount of adsorption is not a recognized almost.
【００４６】[0046]
【発明の効果】活性炭に種々の着色剤を直接添着する
と、着色剤の色と活性炭の黒色が混ざり合って黒味がか
り、くすんだ色になって、鮮明な色彩の着色炭が得られ
ない。従って、そのまま使用できる用途は殆どない。According to the present invention, when various coloring agents are directly attached to activated carbon, the color of the coloring agent and the black color of the activated carbon are mixed with each other to give a black tint and a dull color. Therefore, there is almost no use that can be used as it is.
【００４７】本発明の着色活性炭は、極めて隠蔽力が高
い白色顔料である二酸化チタンで活性炭の表面を被覆し
た基材をベースにしているため、白色及び種々の鮮明な
着色炭が得られ、従来活性炭が黒色であったために使用
されなかった多くの分野に使用可能である。The colored activated carbon of the present invention is based on a base material whose surface is coated with titanium dioxide which is a white pigment having extremely high hiding power, so that white and various sharp colored carbons can be obtained. It can be used in many areas where activated carbon was not used because it was black.
【００４８】更に、活性炭の最も重要な性質である吸着
性の低下が、殆どないことも注目され、また活性炭の表
面が着色剤で堅牢に被覆されているため、手で触れても
手先が黒く汚れることがないことも大きな特徴である。Further, it is noted that the most important property of activated carbon, adsorbability, is hardly reduced, and the surface of the activated carbon is firmly covered with a coloring agent, so that the hands become black even when touched by hand. Another major feature is that it does not get dirty.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 20/20 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B01J 20/20
Claims (1)
ンを添着した後、更に着色剤を含むエマルジョンを添着
せしめてなる着色活性炭。」1. A colored activated carbon obtained by attaching an emulsion containing titanium dioxide to activated carbon and then further attaching an emulsion containing a coloring agent. "
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3036907A JP3044801B2 (en) | 1991-02-05 | 1991-02-05 | Colored activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3036907A JP3044801B2 (en) | 1991-02-05 | 1991-02-05 | Colored activated carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04256436A JPH04256436A (en) | 1992-09-11 |
| JP3044801B2 true JP3044801B2 (en) | 2000-05-22 |
Family
ID=12482850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3036907A Expired - Fee Related JP3044801B2 (en) | 1991-02-05 | 1991-02-05 | Colored activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3044801B2 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066332A (en) * | 2000-08-25 | 2002-03-05 | Tokyo Roki Co Ltd | Method for working photocatalyst |
| US6740406B2 (en) * | 2000-12-15 | 2004-05-25 | Kimberly-Clark Worldwide, Inc. | Coated activated carbon |
| US6533839B2 (en) | 2001-08-09 | 2003-03-18 | 3M Innovative Properties Company | Visual differentiation of adsorbent-loaded media |
| JP2003226512A (en) * | 2001-11-28 | 2003-08-12 | Ueda Shikimono Kojo:Kk | Photocatalytic activated carbon, colored photocatalytic activated carbon, coloring activated carbon, deodorant and/adsorption product using them, and soil cleaning method |
| JP2005263610A (en) * | 2004-03-15 | 2005-09-29 | Ishitake:Kk | Titanium oxide-coated activated carbon |
| JP2007170040A (en) * | 2005-12-22 | 2007-07-05 | Tsukasa Watanabe | Concrete body, concrete body production method, facility, and facility production method |
| US9301884B2 (en) | 2012-12-05 | 2016-04-05 | Kimberly-Clark Worldwide, Inc. | Liquid detection system having a signaling device and an absorbent article with graphics |
| EP2929872B1 (en) | 2012-12-07 | 2019-05-15 | Mandom Corporation | Body odor suppressing agent |
| CN103964755B (en) * | 2014-04-25 | 2016-08-24 | 湖南碧盟文化传播有限公司 | A kind of preparation method of the multicolour active carbon decorating material with absorption property |
| JP6338936B2 (en) * | 2014-06-11 | 2018-06-06 | 株式会社マンダム | Liquid odor control agent |
| JP6284437B2 (en) * | 2014-06-11 | 2018-02-28 | 株式会社マンダム | Body odor suppressor |
| JP6305230B2 (en) * | 2014-06-11 | 2018-04-04 | 株式会社マンダム | Stick-like body odor control composition |
| CN104459038A (en) * | 2014-11-19 | 2015-03-25 | 苏州东辰林达检测技术有限公司 | Detecting absorption reagent for benzene series compounds and preparation method of detecting absorption reagent |
| JP7233686B2 (en) * | 2019-01-28 | 2023-03-07 | 株式会社イリス | Titanium oxide coating method |
-
1991
- 1991-02-05 JP JP3036907A patent/JP3044801B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04256436A (en) | 1992-09-11 |
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