JP3258475B2 - Impregnated sheet - Google Patents
Impregnated sheetInfo
- Publication number
- JP3258475B2 JP3258475B2 JP34473593A JP34473593A JP3258475B2 JP 3258475 B2 JP3258475 B2 JP 3258475B2 JP 34473593 A JP34473593 A JP 34473593A JP 34473593 A JP34473593 A JP 34473593A JP 3258475 B2 JP3258475 B2 JP 3258475B2
- Authority
- JP
- Japan
- Prior art keywords
- upper layer
- lower layer
- impregnated
- drug
- nonwoven fabric
- 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
Landscapes
- Packages (AREA)
- Laminated Bodies (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、防虫剤、芳香剤、殺虫
剤、防カビ剤等の常温揮散性の液状薬剤を含有した含浸
シート状物に関し、詳しくは常温揮散性薬剤の揮散終了
表示機能を有する含浸シート状物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impregnated sheet containing a normal-temperature volatile liquid drug such as an insect repellent, a fragrance, an insecticide, a fungicide and the like. The present invention relates to an impregnated sheet having a function.
【０００２】[0002]
【従来の技術】従来、薬剤含浸時には透明で薬剤揮散時
には不透明な地色を呈する地色層を、常に下地色を呈す
る紙等の基板材上に付設した、地色層及び基板材に含浸
させた薬剤の存否を、薬剤の揮散に伴って地色層面が下
地色から地色に変色することで確認できる様にしたシー
ト状の防虫剤が知られている（特開昭６０−２２４６０
３号公報）。2. Description of the Related Art Conventionally, a ground color layer that is transparent when a drug is impregnated and has an opaque ground color when a drug is volatilized is impregnated into a ground color layer and a substrate material that is always provided on a substrate material such as paper that exhibits a base color. A sheet-like insect repellent is known in which the presence or absence of the drug can be confirmed by changing the ground color layer surface from a ground color to a ground color with the volatilization of the drug (JP-A-60-22460).
No. 3).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来のシート状防虫剤は、薬剤を保持する基板材とは別に
変色層である地色層を設けるため、含浸した薬剤の揮散
性が基板材と地色層で異なり、実際の薬剤揮散終了と薬
剤終了表示とが一致しないという大きな問題点があり、
また生産性が悪くコスト高になるという問題点もあっ
た。更に、小さく切断して使用されるため、シート状防
虫剤の薬剤が外部にしみでる等の問題点も有していた。However, the conventional sheet-like insect repellent is provided with a ground color layer, which is a discoloration layer, separately from the substrate material holding the drug, so that the volatility of the impregnated drug is lower than that of the substrate material. There is a big problem that the actual end of drug volatilization and the end of drug display do not match,
There is also a problem that productivity is low and costs are high. Furthermore, since it is used after being cut into small pieces, there is a problem that the drug of the sheet-like insect repellent oozes to the outside.
【０００４】そこで、本発明は上記問題に鑑み、薬剤含
浸時の保持性、拡散性に優れ、薬剤の実際の揮散終了と
終了表示とをより一致させた含浸シート状物を提供する
ことを目的とする。In view of the above problems, an object of the present invention is to provide an impregnated sheet having excellent retention and diffusibility upon impregnation of a drug, and in which the end of the actual volatilization of the drug and the indication of the end are made more consistent. And
【０００５】[0005]
【課題を解決するための手段】このために本発明では、
図１に示される様に、液体不透過性の下層部２と、常温
揮散性薬剤を保持する不織布の上層部１とが接着されて
いる基材３からなり、該上層部１の一部に下層部を透視
できる処理４が施され、前記上層部１の前記処理４が施
されていない部分に、少なくとも下層部２を透視できる
量の常温揮散性薬剤を含浸させてなる含浸シート状物と
しているものである。According to the present invention, there is provided:
As shown in FIG. 1, a liquid-impermeable lower layer 2 and an upper layer 1 of a non-woven fabric holding a room temperature volatile agent are adhered to a base material 3. As an impregnated sheet-like material obtained by performing a treatment 4 capable of seeing through the lower layer portion, and impregnating at least the lower layer portion 2 with an amount of a normal-temperature volatilizing agent into a portion of the upper layer portion 1 where the treatment 4 has not been performed. Is what it is.
【０００６】[0006]
【作用】本発明において、常温揮散性薬剤を含浸する前
は、不織布である上層部１の一部に施された下層部を透
視できる処理４の部分のみ透明であり下層部２の地色を
透視でき、該処理４が施されていない部分は、不織布の
地色の色を呈している。上層部１の薬剤含浸部、つまり
該処理４が施されていない部分に常温揮散性薬剤を含浸
すると、薬剤含浸部においても不織布が透明化され、上
層部１全体が下層部２を透視できる結果として下層部２
の地色を呈することになる。更に、薬剤揮散後には、再
び下層部を透視できる処理４が施されていない部分が不
透明化され、該処理４が施されている部分のみが下層部
２の地色を呈し、薬剤揮散終了を表示する。すなわち、
薬剤を保持する上層部１自体が変色するため、実際の薬
剤揮散終了と終了表示とがより一致した含浸シート状物
となっているものである。In the present invention, before impregnating with the room temperature volatile agent, only the part of the treatment 4 which can see through the lower part applied to a part of the upper part 1 which is a nonwoven fabric is transparent and the ground color of the lower part 2 is changed. The portion that can be seen through and has not been subjected to the treatment 4 has the ground color of the nonwoven fabric. When the room temperature volatilizable drug is impregnated into the drug-impregnated portion of the upper layer portion 1, that is, the portion where the treatment 4 has not been performed, the nonwoven fabric is also transparent in the drug-impregnated portion, and the entire upper layer portion 1 can see through the lower layer portion 2. As lower layer 2
The ground color. Further, after the drug is volatilized, the portion that has not been subjected to the treatment 4 that allows the lower layer to be seen again is made opaque, and only the portion that has been subjected to the treatment 4 exhibits the ground color of the lower layer 2 and the end of the drug volatilization. indicate. That is,
Since the upper layer 1 itself holding the medicine is discolored, it is an impregnated sheet-like material in which the actual end of the evaporation of the medicine and the end indication are more consistent.
【０００７】[0007]
【実施例】図１は本発明の第１の実施例を示す縦断面図
で、下層部２と不織布である上層部１とが接着された基
材３によって構成されており、該上層部１の一部には下
層部を透視できる処理４が施されている。尚、図中５が
接着部である。FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, which comprises a base material 3 to which a lower layer 2 and an upper layer 1 which is a nonwoven fabric are bonded. Is subjected to a process 4 that allows the lower layer to be seen through. Incidentally, reference numeral 5 in the drawing denotes an adhesive portion.
【０００８】上層部１の不織布としては、液体を保持で
きれば特に限定されないが、保持性、拡散性の点で好ま
しい素材としては熱可塑性極細不織布、三次元編目状不
織布、乾式不織布、スパンボンド不織布等の熱可塑性不
織布を挙げることができる。特に、保持性、拡散性を良
好に発揮するために、細い繊径、例えば０．００１ｄ〜
０．１ｄの分散性の良い熱可塑性の極細不織布が好まし
く用いられる。The non-woven fabric of the upper layer 1 is not particularly limited as long as it can hold a liquid, but preferable materials in terms of retention and diffusivity are thermoplastic ultra-fine non-woven fabrics, three-dimensional knitted non-woven fabrics, dry non-woven fabrics, spun-bonded non-woven fabrics and the like. Thermoplastic non-woven fabric. In particular, in order to exhibit good retention and diffusion properties, a fine fiber diameter, for example, 0.001d to
A thermoplastic ultrafine nonwoven fabric having good dispersibility of 0.1 d is preferably used.
【０００９】上層部１に用いる不織布の製造方法は、公
知のメルトブロー方式、フラッシュ紡糸方式、スパンボ
ンド方式等である。また、不織布を構成する繊維は、ポ
リプロピレンなどのポリオレフィン系繊維、ポリエステ
ル系繊維、ポリアミド繊維、共重合ポリエステル繊維な
どの共重合繊維、複合繊維などの単一又は混合繊維、ま
た構成繊維の繊度は細い繊維単一或いは細い繊維と比較
的太い繊維の混合などが用いられる。The method for producing the nonwoven fabric used for the upper layer 1 is a known melt blow method, flash spinning method, spun bond method, or the like. The fibers constituting the nonwoven fabric are polyolefin fibers such as polypropylene, polyester fibers, polyamide fibers, copolymer fibers such as copolyester fibers, single or mixed fibers such as composite fibers, and the fineness of the constituent fibers is small. A single fiber or a mixture of a thin fiber and a relatively thick fiber is used.
【００１０】上層部１には、その一部に下層部を透視で
きる処理４が施されている。該処理４が施された部分
は、常温揮散性薬剤を含浸させた時も、該薬剤が揮散し
た後も下層部２を透視できる。該処理４が施されていな
い部分は、薬剤含浸時には透明化し、薬剤揮散後には不
透明化するため、薬剤揮散後には該処理４が施された部
分のみが下層部２の地色を呈し、終了表示を行う。The upper layer 1 is subjected to a process 4 for partially seeing the lower layer. The portion subjected to the treatment 4 can see through the lower layer portion 2 even when impregnated with the room-temperature volatile chemical or after the chemical has volatilized. The portion not subjected to the treatment 4 becomes transparent when the drug is impregnated and becomes opaque after the vaporization of the drug. Therefore, only the portion subjected to the treatment 4 exhibits the ground color of the lower layer portion 2 after the vaporization of the drug, and the process ends. Display.
【００１１】該処理４としては、例えば熱エンボス加
工、部分切り抜き、部分的に樹脂を塗布することなどが
挙げられ、特に、熱エンボス加工が好ましく、その中で
も凹凸模様が彫刻されている加熱ロール、または金属板
で行う熱エンボス加工は、加工性が優れて好ましい。熱
エンボス加工は構成繊維、目付などにより温度、圧力、
時間などを適宜調整する。該処理４を行う場合には、例
えばエンボス加工の条件を調整する、下層部２と上層部
１の間にポリエステル等の耐熱性フィルムを貼りつけ
る、下層部２自体を耐熱性フィルムとすること等にによ
り、下層部２に穴があかない様にすることが必要であ
る。The treatment 4 includes, for example, hot embossing, partial cutout, and partial application of a resin. In particular, hot embossing is preferable. Alternatively, hot embossing performed on a metal plate is preferable because of excellent workability. The temperature, pressure,
Adjust time etc. as appropriate. When the treatment 4 is performed, for example, the conditions of the embossing are adjusted, a heat-resistant film such as polyester is adhered between the lower layer 2 and the upper layer 1, the lower layer 2 itself is formed as a heat-resistant film, and the like. Therefore, it is necessary to prevent the lower layer 2 from having a hole.
【００１２】また、前記処理４を例えば「オワリ」など
の薬剤の揮散終了を示す文字とすることにより、薬剤揮
散が終了する時に該文字が現れ、終了表示を明確かつ一
層分かりやすくすることができる。Further, by making the processing 4 a character such as "Owari" which indicates the end of the volatilization of the drug, the character appears when the volatilization of the drug is completed, so that the end display can be clearly and more easily understood. .
【００１３】本発明の下層部２は液体不透過性であり、
不織布である上層部１に保持された薬剤が裏面から外部
にしみ出さないようにするもので、バリアー性の材料で
あることが好ましく、一般的には熱可塑性合成樹脂フィ
ルムまたはシートが使用される。この熱可塑性合成樹脂
フィルム又はシートとしては、例えばポリエチレン、ポ
リプロピレン、ポリスチレン、ポリエステル等のフィル
ム又はシートを用いることができる。The lower layer 2 of the present invention is liquid-impermeable,
It is a material that prevents the drug held in the upper layer portion 1 that is a nonwoven fabric from seeping out from the back surface, and is preferably a barrier material, and generally a thermoplastic synthetic resin film or sheet is used. . As the thermoplastic synthetic resin film or sheet, for example, a film or sheet of polyethylene, polypropylene, polystyrene, polyester, or the like can be used.
【００１４】また、下層部２は、上層部１の一部に施さ
れた下層部を透視できる処理４の部分を目立ちやすくす
るため、着色したものであることが好ましい。着色した
下層部２を用いると、含浸薬剤で上層部１全面が透明状
態にある時には、この下層部２の色が上層部１全面を介
して目視され、薬剤が揮散して下層部を透視できる処理
４が施されていない部分が不透明化すると、該処理４が
施された部分のみで下層部の色を目視でき、期間終了表
示を明確にすることができる。下層部２の着色は、着色
原料を用いた下層部２を使用することで行っても、後か
ら印刷等で着色層を設ける（通常上層部１側に設ける）
ことで行ってもよい。The lower layer 2 is preferably colored in order to make the portion of the treatment 4 which can be seen through the lower layer applied to a part of the upper layer 1 more conspicuous. When the colored lower layer portion 2 is used, when the entire upper layer portion 1 is in a transparent state with the impregnating agent, the color of the lower layer portion 2 is visually observed through the entire upper layer portion 1, and the agent is volatilized and the lower layer portion can be seen through. When the portion that has not been subjected to the process 4 is made opaque, the color of the lower layer can be visually observed only at the portion that has been subjected to the process 4, and the period end display can be clearly displayed. Even if the lower layer 2 is colored by using the lower layer 2 using a coloring material, a colored layer is provided later by printing or the like (usually provided on the upper layer 1 side).
It may be done by doing.
【００１５】上層部１と下層部２は接着されて基材３を
構成する。従って、該基材３は薬剤の含浸時に保持性、
拡散性が優れ、かつ外部にしみ出しにくくなっている。
また、上層部１の一部に施された下層部を透視できる処
理４の部分への下層部２の地色の反映を鮮明にすること
ができる。接着は、例えば、熱融着や接着剤または合成
樹脂を押出しラミネートなどによって行うことができ、
全面に行っても一部に行ってもよい。The upper layer 1 and the lower layer 2 are adhered to form a substrate 3. Therefore, the substrate 3 has a retaining property at the time of impregnation with a drug,
It has excellent diffusivity and is hard to seep out.
In addition, it is possible to clearly reflect the ground color of the lower layer portion 2 to the portion of the process 4 in which the lower layer portion applied to a part of the upper layer portion 1 can be seen through. The bonding can be performed by, for example, extruding and laminating a heat seal or an adhesive or a synthetic resin,
It may be performed on the entire surface or a part.
【００１６】また、基材３は下層部２側に補強層を有し
てもよく、特に下層部２としてフィルムを用いた場合に
有効である。補強層としては、例えば熱可塑性合成樹脂
製のスパンボンド不織布等を用いることができ、下層部
２と一体となっていなくともよいが、良好な補強効果を
得る上で、片面に下層部２としての合成樹脂フィルムを
ラミネートした不織布等、一体化されていることが好ま
しい。The substrate 3 may have a reinforcing layer on the lower layer 2 side, and is particularly effective when a film is used as the lower layer 2. As the reinforcing layer, for example, a spunbonded nonwoven fabric made of a thermoplastic synthetic resin can be used, and it is not necessary that the reinforcing layer is integrated with the lower layer portion 2. However, in order to obtain a good reinforcing effect, the lower layer portion 2 is formed on one surface. It is preferable that they are integrated, such as a non-woven fabric obtained by laminating a synthetic resin film.
【００１７】本発明の含浸シート状物に含浸する常温揮
散性薬剤としては、例えば液体の防虫剤、芳香剤、消臭
剤、殺虫剤、殺菌剤、防カビ剤等の薬効剤が挙げられ、
これらを単独または複数混合して含浸させてもよく、ま
たこれらの薬効剤にアルコール系溶剤、エーテル系溶
剤、オレフィン系溶剤、ケトン系溶剤等の有機溶剤を混
合して使用することも可能である。尚、薬効のない常温
揮散性有機溶剤のみを含浸させ、単にタイムインジケー
ターとして使用してもいっこうにかまわない。Examples of the room-temperature volatilizing agent to be impregnated into the impregnated sheet material of the present invention include liquid insect repellents, fragrances, deodorants, insecticides, fungicides, fungicides such as fungicides, and the like.
These may be impregnated alone or in combination of two or more, and it is also possible to use an organic solvent such as an alcohol-based solvent, an ether-based solvent, an olefin-based solvent, a ketone-based solvent and the like in these medicinal agents. . In addition, it does not matter if only a normal temperature volatile organic solvent having no medicinal effect is impregnated and used simply as a time indicator.
【００１８】図２は本発明の第２の実施例を示す縦断面
図であり、上層部１の外周に熱シール部６を設けた以外
は、図１に示す第１の実施例と同様である。本実施例に
おける熱シール部６は不織布である上層部１の周辺部に
熱融着の枠シールを施したものである。熱シール部６
は、不織布である上層部１への薬剤含有時に、外部へ薬
剤がしみ出すのを防止するために有効である。熱シール
部６は、例えば幅０．５〜２．０ｍｍの熱シール板を温
度１００〜２３０℃で加圧して形成することができる。FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention, which is the same as the first embodiment shown in FIG. 1 except that a heat seal portion 6 is provided on the outer periphery of the upper layer portion 1. is there. The heat seal portion 6 in this embodiment is obtained by applying a heat seal frame seal to the periphery of the upper layer portion 1 which is a nonwoven fabric. Heat sealing part 6
Is effective to prevent the drug from seeping out to the outside when the drug is contained in the upper layer 1 which is a nonwoven fabric. The heat sealing portion 6 can be formed by pressing a heat sealing plate having a width of, for example, 0.5 to 2.0 mm at a temperature of 100 to 230 ° C.
【００１９】尚、熱シール部６の内部を更に熱シールで
区切り複数の薬剤含浸部を形成し、それぞれの薬剤含浸
部に異なった薬効を発する薬剤を含浸させて使用するこ
とも可能である。The inside of the heat sealing section 6 can be further divided by a heat seal to form a plurality of drug-impregnated sections, and each of the drug-impregnated sections can be impregnated with a drug having a different medicinal effect.
【００２０】図３は本発明の第３の実施例を示す上面図
であり、図４はそのＡ−Ａ’断面図であり、緻密部７を
設けた以外は、図２に示す第２の実施例と同様である。
緻密部７は、上層部１に施された下層部を透視できる処
理４が施された部分の周辺部の繊維密度を調整して形成
する。これにより、緻密部７以外の箇所は相対的に繊維
密度が粗になっており、粗の部分に含浸されている薬剤
が毛細管現象により緻密部７に移行し、粗の部分の残存
薬剤量が少なくなる。その結果として、薬剤の大部分
は、特に揮散終了間際において、緻密部７より揮散する
こととなり、終了表示と実際の薬剤の揮散終了とが正確
に一致することとなる。緻密部７は、例えば下層部を透
視できる処理４が施された部分あるいは施される部分を
プレス加工等により厚みを調整して繊維密度を他の部分
に比べ密にすること、繊維密度の異なる不織布を使用す
ること等により形成できるが、プレス加工により厚みを
調整する方法が生産性の観点より好ましい。プレス加工
をする場合には、透明化しない程度に、また実際の揮散
終了と終了表示が一致する様に厚みを調整することが好
ましい。FIG. 3 is a top view showing a third embodiment of the present invention, and FIG. 4 is a sectional view taken along the line AA 'of FIG. 2, except that a dense portion 7 is provided. This is the same as the embodiment.
The dense portion 7 is formed by adjusting the fiber density of the peripheral portion of the portion where the treatment 4 that allows the lower layer portion provided on the upper layer portion 1 to be seen through is performed. As a result, the fiber density is relatively low in portions other than the dense portion 7, and the drug impregnated in the rough portion shifts to the dense portion 7 by capillary action, and the amount of residual drug in the rough portion is reduced. Less. As a result, most of the medicine is volatilized from the dense portion 7 particularly immediately before the end of volatilization, and the end display and the actual end of the volatilization of the medicine accurately match. The dense portion 7 is, for example, to adjust the thickness of the portion to which the treatment 4 that allows the lower layer portion to be seen through or the portion to which the treatment 4 is applied by pressing or the like to make the fiber density denser than other portions, and to have different fiber densities. Although it can be formed by using a nonwoven fabric or the like, a method of adjusting the thickness by press working is preferable from the viewpoint of productivity. In the case of press working, it is preferable to adjust the thickness so that it does not become transparent, and so that the actual end of volatilization matches the end indication.
【００２１】本発明の含浸シート状物の使用態様として
は、洋服ダンスや衣装箱等に入れ易いカード状や、室内
の壁や床、天井の全面に添着できるシート状などの任意
の形態で使用できる。また、衣装箱やたんすの引き出し
に使用する場合は、本発明の含浸シート状物に含浸させ
た常温揮散性薬剤が、衣装箱等の中に収納されている衣
類等の収納物に接触し、収納物を汚染してしまうことを
防ぐため、本発明のシート状物をガス透過性容器に収納
して使用することが好ましい。The impregnated sheet of the present invention can be used in any form, such as a card that can be easily put into a clothes dance or a clothes box, or a sheet that can be attached to the entire wall, floor, or ceiling of a room. it can. Further, when used in a drawer for a clothes box or a wardrobe, the room-temperature volatile compound impregnated in the impregnated sheet-like material of the present invention comes into contact with clothes and other storage items stored in the clothes box and the like, In order to prevent the stored matter from being contaminated, it is preferable to use the sheet-like material of the present invention stored in a gas-permeable container.
【００２２】以下、本発明者が試作した含浸シート状物
について説明する。Hereinafter, the impregnated sheet produced by the present inventor will be described.
【００２３】試作例１ 上層部１としてメルトブロー方式によって得た繊径０．
０２ｄのプロピレン繊維の極細不織布（目付３０ｇ／ｍ
ｍ2 、厚さ０．２２ｍｍ）を、下層部２として厚さ１５
０μｍのポリプロピレン樹脂シートを用い、２液タイプ
ウレタン樹脂性接着剤で両者を接着して基材３とした。
次に、上層部１に、下層部を透視できる処理４として熱
エンボス加工を行った。熱エンボス加工は、凹凸彫刻し
た金属板で温度１２０℃に加熱加圧して行った。熱エン
ボス部は透明化した。 Prototype Example 1 The fiber diameter of the upper layer 1 obtained by a melt-blowing method was 0.1 mm.
02d propylene fiber ultra-fine non-woven fabric (30 g / m
m 2 , thickness 0.22 mm) as the lower layer 2
Using a 0 μm polypropylene resin sheet, the two were adhered to each other with a two-component urethane resin adhesive to form a base material 3.
Next, hot embossing was performed on the upper layer 1 as a process 4 in which the lower layer could be seen through. The hot embossing was performed by heating and pressing at a temperature of 120 ° C. using a metal plate having a concave and convex engraving. The heat embossed portion became transparent.
【００２４】上記基材３を５ｃｍ×７ｃｍ試料に打ち抜
いて、防虫剤用シート状物としてテストした。防虫剤
（エンペントリン）を１００ｍｇ含有させたところ上層
部１が透明化した。得られた含浸シート状物を洋服だん
す中で半年間使用した後、薬剤終了表示が目視でき、基
材３中の防虫剤は残液３４ｍｇであった。The substrate 3 was punched into a 5 cm × 7 cm sample and tested as a sheet for insect repellent. When 100 mg of an insect repellent (empentrin) was contained, the upper layer 1 became transparent. After using the obtained impregnated sheet-like material in a clothes ward for half a year, the end of the medicine was visually recognized, and the insecticide in the base material 3 was 34 mg of a residual liquid.
【００２５】試作例２ 上層部１としてのメルトブロー方式によって得た繊径
０．０４ｄのプロピレン繊維の極細不織布（目付５０ｇ
／ｍｍ2 、厚さ０．４２ｍｍ）と、補強層としてのスパ
ンボンド方式によって得た繊径２ｄのポリエステル繊維
不織布（目付５０ｇ／ｍｍ2 、厚さ０．１８ｍｍ）を、
下層部２としての厚さ４５μｍの黄色ポリプロピレンフ
ィルムを中間に介在させて三層押出ラミネート加工で接
着させて基材３とした。次に、得られた基材３を５ｃｍ
×７ｃｍ試料に打ち抜いて、防虫剤用シート状物として
テストした。 Prototype Example 2 Ultrafine non-woven fabric of propylene fiber having a fiber diameter of 0.04 d obtained by melt blow method as the upper layer portion 1 (with a basis weight of 50 g)
/ Mm 2 , thickness 0.42 mm) and a nonwoven polyester fiber nonwoven fabric with a fiber diameter of 2 d (basis weight 50 g / mm 2 , thickness 0.18 mm) obtained by a spun bond method as a reinforcing layer,
A base material 3 was obtained by bonding a 45-μm-thick yellow polypropylene film serving as the lower layer portion 2 with a three-layer extrusion lamination process with a middle layer interposed therebetween. Next, the obtained substrate 3 was 5 cm
A 7 cm sample was punched out and tested as a sheet for insect repellent.
【００２６】この時、上層部１の中央部分（２．５ｃｍ
×４ｃｍ）を温度１００℃、圧力１０ｋｇ／ｃｍ2 でプ
レス加工して緻密部７を形成した後、試作例１と同様に
熱エンボス加工を行った。更に基材３周辺部に幅１．０
ｍｍの４ｃｍ×６ｃｍの枠シール加工を行い熱シール部
６を形成した。防虫剤（エンペントリン）を１００ｍｇ
含有させたところ上層部１の熱シール部６内部が透明化
した。この時、緻密部７は厚みが薄く緻密構造であるた
め、少量の防虫剤で透明化できた。また、緻密部７以外
の部分は防虫剤の保持性、拡散性に優れ、必要な防虫剤
薬剤を短時間に含有させることができた。At this time, the central portion of the upper layer portion 1 (2.5 cm
× 4 cm) was pressed at a temperature of 100 ° C. and a pressure of 10 kg / cm 2 to form a dense portion 7, and then hot embossing was performed in the same manner as in Prototype Example 1. In addition, a width of 1.0
A heat seal portion 6 was formed by performing a frame sealing process of 4 mm × 6 cm mm. 100 mg of insect repellent (empentrin)
When it was contained, the inside of the heat seal portion 6 of the upper layer portion 1 became transparent. At this time, since the dense portion 7 has a thin and dense structure, it can be made transparent with a small amount of insect repellent. In addition, the portion other than the dense portion 7 was excellent in retentivity and diffusibility of the insect repellent, and was able to contain the necessary insect repellent in a short time.
【００２７】得られた含浸シート状物を洋服だんす中で
半年間使用した後、薬剤終了表示が目視できた。基材３
中の防虫剤は残液２８ｍｇであり、薬剤揮散終了と終了
表示がより正確に一致していた。After using the obtained impregnated sheet material in a clothes ward for half a year, a drug end indication could be visually observed. Base material 3
The insect repellent contained therein was 28 mg of the residual liquid, and the end of the chemical vaporization and the end indication more accurately coincided with each other.
【００２８】比較試作例 レーヨン繊維（繊径２ｄ、目付７０ｇ／ｍｍ2 ）、ポリ
プロピレン短繊維（繊径３ｄ、目付３０ｇ／ｍｍ2 ）の
混合短繊維からニードルパンチ方式で不織布（目付１０
０ｇ／ｍｍ2 、厚さ０．７ｍｍ）を得た。この上層部１
の不織布に厚さ２５μｍのポリエチレンフィルムを温度
１２５℃に加熱させながら熱接着して下層部２とし、基
材３を得た。 Comparative Prototype Example A non-woven fabric (having a basis weight of 10%) was prepared from a mixed short fiber of rayon fiber (diameter: 2 d, basis weight: 70 g / mm 2 ) and polypropylene short fiber (diameter: 3 d, basis weight: 30 g / mm 2 ) by a needle punch method.
0 g / mm 2 , thickness 0.7 mm). This upper part 1
A 25 μm-thick polyethylene film was thermally bonded to a non-woven fabric while heating to a temperature of 125 ° C. to form a lower layer portion 2, and a substrate 3 was obtained.
【００２９】次に、上層部１の表面にシリカ粉末とエチ
レン−酢ビ接着剤を１：１の割合で混合したものを一部
塗布した。上記基材３を５ｃｍ×７ｃｍ試料に打ち抜い
て、防虫剤（エンペントリン）を１００ｍｇ含有させ
た。薬剤の浸透性が繊維の方向性の影響を受け易く、片
寄りの拡散であった。また、外部へのしみ出しも生じ
た。Next, a mixture of silica powder and an ethylene-vinyl acetate adhesive at a ratio of 1: 1 was partially applied to the surface of the upper layer 1. The substrate 3 was punched into a 5 cm × 7 cm sample, and contained 100 mg of an insect repellent (empentrin). The permeability of the drug was susceptible to the directionality of the fibers, with a one-sided diffusion. In addition, seepage to the outside occurred.
【００３０】得られた含浸シート状物を洋服だんす中で
半年間使用した後、薬剤終了表示が目視できた。基材中
の防虫剤は残液６３ｍｇであり、薬剤揮散終了と終了表
示にかなりのズレがあった。After using the obtained impregnated sheet material in a clothes ward for half a year, a drug end indication could be visually observed. The insect repellent in the base material was 63 mg of the residual liquid, and there was a considerable difference between the end of the chemical vaporization and the end indication.
【００３１】[0031]
【発明の効果】以上説明の通り、本発明は薬剤保持層が
変色層の役割を兼ね、薬剤保持層自体が終了表示機能を
有する含浸シート状物である。従って、防虫剤、芳香
剤、消臭剤、殺虫剤、防カビ剤などの常温揮散性薬剤、
またはこれらの薬剤とアルコール系溶剤、エーテル系溶
剤、ケトン系溶剤等の有機溶剤とを混合して含浸させた
終了表示機能を有するシート状物として利用した際に、
従来の表示機能を備えた防虫剤に比べて実際の薬剤揮散
終了と終了表示とをより一致させることができると共
に、生産性に優れ安価に製造できる。As described above, the present invention is an impregnated sheet-like material in which the drug holding layer also functions as a color changing layer, and the drug holding layer itself has a function of indicating completion. Therefore, room temperature volatile agents such as insect repellents, fragrances, deodorants, insecticides, fungicides,
Or when used as a sheet-like material having an end display function impregnated by mixing and impregnating these agents with an organic solvent such as an alcohol solvent, an ether solvent, and a ketone solvent,
Compared with the conventional insect repellent having a display function, the actual end of the vaporization of the drug and the end display can be made more coincident with each other, and the production is excellent and the production can be carried out at low cost.
【００３２】また、下層部を透視できる処理を施した部
分の周辺の不織布の繊維密度を他の部分に比べ密にした
緻密部を設けることことにより、少量の薬剤で緻密部が
透明化するため、終了表示と薬剤の揮散終了とをより正
確に一致させることができる。Further, by providing a dense portion in which the fiber density of the nonwoven fabric around the portion where the lower layer portion can be seen through has been made denser than other portions, the dense portion becomes transparent with a small amount of chemicals. Thus, it is possible to more accurately match the end display with the end of volatilization of the medicine.
【００３３】更に、上層部の不織布の外周を熱シールす
ることにより、含浸された揮散性薬剤の周辺部よりの外
部へのしみ出しを防ぐこともできる。Furthermore, by exposing the outer periphery of the nonwoven fabric of the upper layer to heat sealing, it is possible to prevent the impregnated volatile chemicals from seeping out from the peripheral part to the outside.
【図１】本発明の第１の実施例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
【図２】本発明の第２の実施例を示す縦断面図である。FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention.
【図３】本発明の第３の実施例を示す上面図である。FIG. 3 is a top view showing a third embodiment of the present invention.
【図４】本発明の第３の実施例を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing a third embodiment of the present invention.
１ 上層部 ２ 下層部 ３ 基材 ４ 下層部を透視できる処理 ５ 接着部 ６ 熱シール部 ７ 緻密部 DESCRIPTION OF SYMBOLS 1 Upper layer part 2 Lower layer part 3 Base material 4 Processing which can see through a lower layer part 5 Adhesion part 6 Heat seal part 7 Dense part
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ３２Ｂ 27/18 Ｂ３２Ｂ 27/18 Ｆ (72)発明者 井下 佳徳 東京都新宿区下落合１丁目４番10号 エ ステー化学株式会社内 (72)発明者 永井 博 東京都新宿区下落合１丁目４番10号 エ ステー化学株式会社内 (72)発明者 磯貝 剛 東京都新宿区下落合１丁目４番10号 エ ステー化学株式会社内 (72)発明者 小澤 洋平 東京都新宿区下落合１丁目４番10号 エ ステー化学株式会社内 (56)参考文献 特開 昭61−152601（ＪＰ，Ａ) 実開 昭61−20319（ＪＰ，Ｕ) 実開 平２−78976（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B65D 81/28 A01N 25/10 A01N 25/18 A01N 25/34 B32B 27/12 B32B 27/18 ────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI B32B 27/18 B32B 27/18 F (72) Inventor Yoshinori Inoshi 1-4-10 Shimochiai, Shinjuku-ku, Tokyo ST Chemical Co., Ltd. (72) Inventor Hiroshi Nagai 1-4-10 Shimo-Ochiai Shinjuku-ku, Tokyo Est Chemical Co., Ltd. (72) Inventor Tsuyoshi Isogai 1-4-10 Shimo-Ochiai Shinjuku-ku, Tokyo Est Chemical Co., Ltd. 72) Inventor Yohei Ozawa 1-4-10 Shimo-Ochiai, Shinjuku-ku, Tokyo Est Chemical Co., Ltd. (56) References JP-A-61-152601 (JP, A) Jika-sho 61-20319 (JP, U) Actually Open Hei 2-78976 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) B65D 81/28 A01N 25/10 A01N 25/18 A01N 25/34 B32B 27/12 B32B 27 / 18
Claims (5)
剤を保持する不織布である上層部とが接着されている基
材からなり、該上層部の一部に下層部を透視できる処理
が施され、前記上層部の前記処理が施されていない部分
に、少なくとも下層部を透視できる量の常温揮散性薬剤
を含浸させてなることを特徴とする含浸シート状物。1. A process in which a liquid-impermeable lower layer is bonded to an upper layer which is a nonwoven fabric holding a room-temperature volatile agent, and a lower layer can be seen through a part of the upper layer. Wherein the non-treated portion of the upper layer is impregnated with at least an amount of a normal-temperature-volatile chemical that allows the lower layer to be seen.
層部の外周が熱シールされていることを特徴とする請求
項１記載の含浸シート状物。2. The impregnated sheet according to claim 1, wherein the upper layer is a thermoplastic nonwoven fabric, and the outer periphery of the upper layer is heat-sealed.
る処理が熱エンボス加工であり、熱エンボス加工された
箇所の周辺部がその外側部に比べ繊維密度が密であるこ
とを特徴とする請求項１又は２記載の含浸シート状物。3. A process in which the lower layer portion provided on the upper layer portion can be seen through is a hot embossing process, and the fiber density is higher at the periphery of the hot embossed portion than at the outer portion thereof. The impregnated sheet material according to claim 1 or 2, wherein
とを特徴とする請求項１、２又は３記載の含浸シート状
物。4. The impregnated sheet material according to claim 1, wherein the upper layer portion is a thermoplastic ultrafine nonwoven fabric.
ィルムであることを特徴とする請求項１、２、３または
４記載の含浸シート状物。5. The impregnated sheet material according to claim 1, wherein the lower layer portion is a colored thermoplastic synthetic resin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34473593A JP3258475B2 (en) | 1993-12-21 | 1993-12-21 | Impregnated sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34473593A JP3258475B2 (en) | 1993-12-21 | 1993-12-21 | Impregnated sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07172477A JPH07172477A (en) | 1995-07-11 |
| JP3258475B2 true JP3258475B2 (en) | 2002-02-18 |
Family
ID=18371575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34473593A Expired - Fee Related JP3258475B2 (en) | 1993-12-21 | 1993-12-21 | Impregnated sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3258475B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4212823B2 (en) * | 2002-04-10 | 2009-01-21 | 日本製紙パピリア株式会社 | Period indicator |
-
1993
- 1993-12-21 JP JP34473593A patent/JP3258475B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07172477A (en) | 1995-07-11 |
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