JPH0529500B2 - - Google Patents
Info
- Publication number
- JPH0529500B2 JPH0529500B2 JP6294489A JP6294489A JPH0529500B2 JP H0529500 B2 JPH0529500 B2 JP H0529500B2 JP 6294489 A JP6294489 A JP 6294489A JP 6294489 A JP6294489 A JP 6294489A JP H0529500 B2 JPH0529500 B2 JP H0529500B2
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- sheet
- raw material
- foam
- mixed
- 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 - Lifetime
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は、粉末あるいは顆粒上の吸収材を含む
シート状の吸収材の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing a sheet-like absorbent material including a powder or granular absorbent material.
＜従来の技術＞
従来、吸収材として活性炭等の脱臭剤や塩化カ
ルシウム等の吸湿剤を用い、これらシート状に形
成したシート状吸収材は種々知られており、例え
ば前記吸収剤をインキやニス等に練り込んで塗料
化して基体シート状に塗布したものや、吸収剤を
粘着剤を介して基体シート上に付着させたものが
知られている。例えば特開昭54−10290号公報に
は、粒状の脱酸素剤を基体シートの片面または両
面に層状に接着したものが示されている。また、
特公昭58−46325号公報には、紙や布などの基体
シートに、吸湿剤と水溶性高分子を水に溶解して
塗料化したものを塗布等した後乾燥させて表面に
吸湿剤層を形成させた、シート状吸収剤の製造方
法が示されている。<Prior Art> Conventionally, various sheet-like absorbent materials have been known in which a deodorizing agent such as activated carbon or a moisture absorbent such as calcium chloride is used as an absorbent material, and these are formed into a sheet shape. There are known methods in which the absorbent is kneaded into a paint and applied to a base sheet, and one in which an absorbent is attached to the base sheet via an adhesive. For example, JP-A-54-10290 discloses a substrate sheet in which a granular oxygen scavenger is adhered in a layer on one or both sides of a base sheet. Also,
Japanese Patent Publication No. 58-46325 discloses that a hygroscopic agent and a water-soluble polymer dissolved in water are coated on a base sheet such as paper or cloth and then dried to form a hygroscopic layer on the surface. A method of manufacturing the formed sheet-like absorbent is shown.
＜発明が解決しようとする課題＞
しかしながら、吸収剤をインキやニス等に練り
込んだものは、吸収剤がインキ、ニス等に囲まれ
て脱臭や吸湿等の効果が著しく損なわれ、吸収材
としての効果を発揮させるためには多量の吸収剤
を用いなければならなかつた。また、吸収剤を粘
着剤等を介して接着させたものは、上述した問題
は生じないが、吸収剤が露出しているため吸収剤
の脱落による周囲の汚染が心配される。これを防
ぐためには、吸収剤層状に不織布等の層を設ける
ことが考えられるが、経済的には非常に不利であ
る。さらに、吸収剤の種類によつては、吸湿その
他によりべたつきや変色といつた現象が発生する
ので、シート状吸収材全体に均一に吸収材が設け
られたものは、周囲の汚染等が生じて好ましくな
い。<Problems to be Solved by the Invention> However, when an absorbent is mixed into ink, varnish, etc., the absorbent is surrounded by the ink, varnish, etc., and its deodorizing and moisture absorption effects are significantly impaired, making it difficult to use as an absorbent. In order to achieve this effect, a large amount of absorbent had to be used. Furthermore, although the above-mentioned problem does not occur in the case where the absorbent is adhered via an adhesive or the like, since the absorbent is exposed, there is a concern that the absorbent may fall off and contaminate the surrounding area. In order to prevent this, it is conceivable to provide a layer of nonwoven fabric or the like as an absorbent layer, but this is economically disadvantageous. Furthermore, depending on the type of absorbent, phenomena such as stickiness or discoloration may occur due to moisture absorption or other factors, so if the absorbent material is evenly distributed over the entire sheet-like absorbent material, it may cause contamination of the surrounding area. Undesirable.
＜課題が解決するための手段＞
そこで本発明は、吸収材を連続気泡を有する発
泡体内部に存在させ、かつ片面側を吸収剤の分布
が非常に少ない層とすることにより、上述した従
来技術の問題点を解決するシート状吸収材を提供
するものであり、ウレタン、ポリエチレン等の連
続気泡を有する発泡体を形成する原料中に、粉末
または顆粒状の吸収剤を混合し、該混合物をシー
ト状に延展して吸収剤を比重差により片面に密に
分布させた後、前記原料を発泡させることを特徴
とする、シート状吸収材の製造方法である。<Means for Solving the Problems> Therefore, the present invention solves the above-mentioned conventional technology by making an absorbent material exist inside a foam having open cells, and by making one side a layer with a very small distribution of the absorbent material. The purpose is to provide a sheet-like absorbent material that solves these problems.A powder or granular absorbent is mixed into a raw material that forms a foam having open cells, such as urethane or polyethylene, and the mixture is made into a sheet. This is a method for producing a sheet-like absorbent material, which is characterized in that the raw material is foamed after being spread in a shape so that the absorbent is densely distributed on one side due to the difference in specific gravity.
＜作用＞
本発明において、発泡体原料中に混合した吸収
剤は、シート状に延展させると、比重差によりシ
ートの片面に密に分布し、他方の面は非常に疎と
なる。この状態で発泡体原料を発泡させると、連
続気泡が形成される。これによりシート内の表面
積が非常に大きくなり、吸収剤が実質的に露出
し、吸収剤の効果が発揮可能となる。<Function> In the present invention, when the absorbent mixed in the foam raw material is spread into a sheet, it is densely distributed on one side of the sheet due to the difference in specific gravity, and is very sparsely distributed on the other side. When the foam raw material is foamed in this state, open cells are formed. This provides a very large surface area within the sheet, substantially exposing the absorbent and allowing the absorbent to be effective.
＜実施例＞
次に、図面を参照して本発明を説明する。第１
図は本発明により得られるシート状吸収材の一実
施例を示す断面図である。<Example> Next, the present invention will be described with reference to the drawings. 1st
The figure is a sectional view showing an example of a sheet-like absorbent material obtained by the present invention.
本発明で用いる吸収剤２は、硫酸第一鉄とＬ−
アスコルビン酸の混合物、活性炭、サイクロデキ
ストリン等の脱臭剤、あるいは塩化カルシウムや
シリカゲル等の吸湿剤など公知の粉末または顆粒
状のものが使用できる。前述した硫酸第一鉄とＬ
−アスコルビン酸の混合物は、アンモニア、硫化
水素、メルカプタン等に優れた脱臭効果を示す脱
臭剤であるが、その混合比によつては脱酸素能を
有するものであり、脱臭剤、脱酸素剤のいずれと
して用いた場合でも、その反応により液状化する
ことが知られている。また、塩化カルシウムが潮
解性を有することもよく知られている。 The absorbent 2 used in the present invention contains ferrous sulfate and L-
Known powders or granules such as ascorbic acid mixtures, activated carbon, deodorizing agents such as cyclodextrin, and moisture absorbing agents such as calcium chloride and silica gel can be used. The aforementioned ferrous sulfate and L
-A mixture of ascorbic acid is a deodorizing agent that exhibits an excellent deodorizing effect on ammonia, hydrogen sulfide, mercaptan, etc., but depending on the mixing ratio, it also has oxygen scavenging ability, It is known that in either case, the reaction causes liquefaction. It is also well known that calcium chloride has deliquescent properties.
吸収剤２を混合する、発泡体１の原料として
は、例えば触媒、発泡剤、フレオンを混合したポ
リオール混合物を例示できる。この混合物はイソ
シアネート反応させることにより発泡ポリウレタ
ンを形成する。このほか、発泡ポリエチレンの原
料等、連続気泡を有する発泡体１を形成可能な公
知の原料が使用できる。 An example of the raw material for the foam 1 with which the absorbent 2 is mixed is a polyol mixture containing a catalyst, a blowing agent, and Freon. This mixture forms polyurethane foam by isocyanate reaction. In addition, known raw materials capable of forming the foam 1 having open cells, such as raw materials for foamed polyethylene, can be used.
上述した発泡体原料に、前述の吸収剤２を適宜
量混合し、該混合物をシート状に延展し、放置す
ると、吸収剤２は原料との比重差により沈降また
は浮上し、シートの片面側が吸収剤２の密な層と
なり、他方は疎な層となる。この状態になつた
後、原料を発泡させることにより、第１図に示す
ようなシート状吸収材が作成される。 When an appropriate amount of the above-mentioned absorbent 2 is mixed with the above-mentioned foam raw material, and the mixture is spread into a sheet and left to stand, the absorbent 2 sinks or floats due to the difference in specific gravity with the raw material, and one side of the sheet absorbs. One becomes a dense layer of agent 2 and the other becomes a sparse layer. After reaching this state, a sheet-like absorbent material as shown in FIG. 1 is created by foaming the raw material.
＜発明の効果＞
以上述べたように本発明によれば、比重差によ
り吸収剤を片面に密に分布させる手段を用いてい
るので、経済的な負担がなくしかも容易に目的と
するシート状吸収材を得ることができる。得られ
たシート状吸収材は、吸収剤がシートから脱落す
ることがない。また、吸収剤の吸湿等によりべた
つきや変色等があつても、シート状吸収材の片面
は吸収剤が非常に疎であるため、その面には前記
不都合が直接表れないので衛生的であり、商品価
値の高いものである。<Effects of the Invention> As described above, according to the present invention, since the method of distributing the absorbent densely on one side due to the difference in specific gravity is used, it is easy to obtain the desired sheet-like absorbent without any economical burden. material can be obtained. In the obtained sheet-like absorbent material, the absorbent does not fall off from the sheet. In addition, even if there is stickiness or discoloration due to moisture absorption of the absorbent, the absorbent is very sparse on one side of the sheet-like absorbent, so the above-mentioned disadvantages will not directly appear on that side, so it is hygienic. It has high commercial value.
第１図は本発明により得られるシート状吸収材
の一実施例を示す断面図である。
１……発泡体、２……吸収剤。
FIG. 1 is a sectional view showing an example of a sheet-like absorbent material obtained according to the present invention. 1... Foam, 2... Absorbent.
Claims (1)
る発泡体を形成する原料中に、粉末または顆粒状
の吸収剤を混合し、該混合物をシート状に延展し
て吸収剤を比重差により片面に密に分布させた
後、前記原料を発泡させることを特徴とする、シ
ート状吸収材の製造方法。1. Powder or granular absorbent is mixed into a raw material for forming a foam having open cells such as urethane or polyethylene, and the mixture is spread into a sheet to distribute the absorbent densely on one side due to the difference in specific gravity. A method for producing a sheet-like absorbent material, which comprises foaming the raw material after the foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6294489A JPH01281143A (en) | 1989-03-15 | 1989-03-15 | Method for producing sheetlike absorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6294489A JPH01281143A (en) | 1989-03-15 | 1989-03-15 | Method for producing sheetlike absorbent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01281143A JPH01281143A (en) | 1989-11-13 |
| JPH0529500B2 true JPH0529500B2 (en) | 1993-04-30 |
Family
ID=13214923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6294489A Granted JPH01281143A (en) | 1989-03-15 | 1989-03-15 | Method for producing sheetlike absorbent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01281143A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2569723Y2 (en) * | 1991-06-03 | 1998-04-28 | 日本エヌエスシー株式会社 | Underlay cushioning material for coating finishing work |
| US5911937A (en) * | 1995-04-19 | 1999-06-15 | Capitol Specialty Plastics, Inc. | Desiccant entrained polymer |
| US6908553B1 (en) * | 1998-07-08 | 2005-06-21 | Baxter International Inc. | Composite membrane with particulate matter substantially immobilized therein |
| DE102011083017A1 (en) * | 2011-09-20 | 2013-03-21 | Evonik Industries Ag | Composite materials comprising an open-cell polymer matrix and granules embedded therein |
-
1989
- 1989-03-15 JP JP6294489A patent/JPH01281143A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01281143A (en) | 1989-11-13 |
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