JPH08113828A - Insect repellent core-sheath type conjugated fiber - Google Patents
Insect repellent core-sheath type conjugated fiberInfo
- Publication number
- JPH08113828A JPH08113828A JP6273091A JP27309194A JPH08113828A JP H08113828 A JPH08113828 A JP H08113828A JP 6273091 A JP6273091 A JP 6273091A JP 27309194 A JP27309194 A JP 27309194A JP H08113828 A JPH08113828 A JP H08113828A
- Authority
- JP
- Japan
- Prior art keywords
- insect repellent
- core
- fiber
- polyester
- sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Multicomponent Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は芯鞘型複合繊維に関し、
更に詳しくは、防虫性を持つ芯鞘型複合繊維に関する。TECHNICAL FIELD The present invention relates to a core-sheath type composite fiber,
More specifically, it relates to a core-sheath type composite fiber having insect repellent properties.
【０００２】[0002]
【従来の技術】従来、繊維に防虫性を付与する方法とし
ては、Ｎ，Ｎ‐ジエチルトルアミド（ＤＥＥＴ）やチオ
シアノ酢酸イソボルニル等の防虫剤により後加工処理す
る方法、あるいは予め紡糸前のポリマー中に芳香族カル
ボン酸エステル等の防虫剤を練り込む方法等が知られて
いる。2. Description of the Related Art Conventionally, as a method for imparting insect repellency to fibers, a method of post-processing with an insect repellent such as N, N-diethyltoluamide (DEET) or isobornyl thiocyanoacetate, or pre-spinning A method of kneading an insect repellent such as an aromatic carboxylic acid ester into the above is known.
【０００３】しかし、前者の方法では、繊維表面への防
虫剤の付着が弱く、防虫効果を長期間持続することがで
きないと共に、耐洗濯性が低いという欠点があった。後
者の方法としては、例えば特開平５‐２７９９２０号公
報に、低粘性の防虫剤を脂肪族系ポリエステルと混合し
てギアポンプによって送液可能な粘性になった混合液を
調製し、この混合液をポリエステルポリマーの紡糸直前
において、ポリエステルポリマー中に急速混練した後、
これを紡糸することを特徴とする防虫性ポリエステル繊
維の製造方法が記載されている。しかし、該方法では、
溶融温度が２８０〜３００℃と高いポリエステル繊維の
場合には、防虫剤を高温で添加しなければならない。従
って、防虫剤が劣化を受け、防虫効果を長期間持続する
ことができないという問題があった。更には、添加の
際、防虫剤の揮発が多くなり、防虫剤を効率良く繊維中
に練り込むことができず、コスト的に不利であり、かつ
作業環境上も好ましくないという問題があった。However, the former method has the drawbacks that the insect repellent is not adhered to the surface of the fiber easily, the insect repellent effect cannot be maintained for a long time, and the washing resistance is low. As the latter method, for example, in JP-A-5-279920, a low-viscosity insect repellent is mixed with an aliphatic polyester to prepare a viscous mixed solution which can be delivered by a gear pump, and this mixed solution is prepared. Immediately before spinning the polyester polymer, after rapid kneading into the polyester polymer,
A method for producing an insect-repellent polyester fiber, which comprises spinning this, is described. However, in the method,
In the case of polyester fibers having a high melting temperature of 280 to 300 ° C., the insect repellent must be added at a high temperature. Therefore, there is a problem that the insect repellent is deteriorated and the insect repellent effect cannot be maintained for a long period of time. Furthermore, when added, the insect repellent increases in volatilization and the insect repellent cannot be efficiently kneaded into the fiber, which is disadvantageous in terms of cost and is not preferable in the working environment.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、防虫効果を
長期間持続し得ると共に、安価な芯鞘型複合繊維を提供
することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive core-sheath type composite fiber which can maintain the insect repellent effect for a long period of time.
【０００５】[0005]
【課題を解決するための手段】本発明は、鞘部及び芯部
から成る複合繊維において、芯部が防虫剤を含むポリオ
レフィンであり、かつ鞘部がポリエステルであることを
特徴とする繊維である。DISCLOSURE OF THE INVENTION The present invention is a composite fiber comprising a sheath portion and a core portion, wherein the core portion is a polyolefin containing an insect repellent and the sheath portion is polyester. .
【０００６】本発明の複合繊維は、芯部に防虫剤を含
む。従って、鞘部を形成するポリエステルポリマーが障
壁となって防虫剤の急激な揮散が防止される。芯部がポ
リオレフィンで形成されているために、防虫剤添加を比
較的低温で実施でき、防虫剤の揮発及び劣化が少ない。
従って、防虫効果を長期間に亘って持続できる。また、
防虫剤添加の際、その揮発が少ないため、コスト的に
も、また作業環境的にも優れている。The composite fiber of the present invention contains an insect repellent in the core. Therefore, the polyester polymer forming the sheath serves as a barrier to prevent rapid volatilization of the insect repellent. Since the core is made of polyolefin, the insect repellent can be added at a relatively low temperature, and the insect repellent is less likely to volatilize and deteriorate.
Therefore, the insect repellent effect can be maintained for a long period of time. Also,
When adding an insect repellent, the volatilization of the insect repellent is small, which is excellent in terms of cost and working environment.
【０００７】本発明の複合繊維の芯部を構成するポリオ
レフィンは、溶融紡糸可能で繊維形成性を有する重合体
であり、かつその溶融温度が好ましくは１３０〜１８０
℃、特に好ましくは１３０〜１５０℃である。溶融温度
が上記範囲を超えては、防虫剤添加の際に、防虫剤の劣
化及び揮発が激しく好ましくない。溶融温度が上範囲未
満では、紡糸性不良が生じ好ましくない。例えば、低密
度ポリエチレン、中密度ポリエチレン、高密度ポリエチ
レン、低密度線形ポリエチレン等のポリエチレン、アイ
ソタクチックポリプロピレン、ポリ‐１‐メチルペンテ
ン、ポリエチレンプロピレン共重合体、ポリエチレンア
クリレート共重合体、及びその他の共重合ポリオレフィ
ン系重合体等が挙げられる。The polyolefin constituting the core of the conjugate fiber of the present invention is a polymer which is melt-spinnable and has a fiber-forming property, and its melting temperature is preferably 130 to 180.
C., particularly preferably 130 to 150.degree. When the melting temperature exceeds the above range, the insect repellent is deteriorated and volatilized severely when the insect repellent is added, which is not preferable. If the melting temperature is lower than the upper range, spinnability becomes poor, which is not preferable. For example, polyethylene such as low density polyethylene, medium density polyethylene, high density polyethylene, low density linear polyethylene, isotactic polypropylene, poly-1-methylpentene, polyethylene propylene copolymer, polyethylene acrylate copolymer, and other copolymers. Examples include polymerized polyolefin polymers.
【０００８】複合繊維の鞘部を形成するポリマーは、ポ
リエステルであり、例えばポリエチレンテレフタレー
ト、ポリエチレンイソフタレート、ポリテトラメチレン
テレフタレート、ポリエチレンオキシベンゾエート、ポ
リブチレンテレフタレート、ポリヘキサメチレンテレフ
タレート、ポリ１，４‐ジメチルシクロヘキサンテレフ
タレート、ポリピバロラクトン及びこれらを成分とする
コポリエステル等が挙げられる。本発明に使用されるポ
リエステルポリマーは、いわゆるファイバーグレードの
もので通常１８，０００〜２２，０００の数平均分子量
を持つものが好ましい。The polymer forming the sheath portion of the conjugate fiber is polyester, for example, polyethylene terephthalate, polyethylene isophthalate, polytetramethylene terephthalate, polyethyleneoxybenzoate, polybutylene terephthalate, polyhexamethylene terephthalate, poly 1,4-dimethyl. Examples thereof include cyclohexane terephthalate, polypivalolactone and copolyesters containing them. The polyester polymer used in the present invention is preferably a so-called fiber grade and usually has a number average molecular weight of 18,000 to 22,000.
【０００９】本発明において、芯部に含められる防虫剤
は、上記ポリオレフィンと良く相溶し、ポリオレフィン
と混合する際の温度において安定性を有し、更に防虫効
果が高くかつ安全な化合物を選択することが好ましい。
例えば、オルトジアルキルフタレート、イソジアルキル
フタレート、テレジアルキルフタレート等の芳香族カル
ボン酸エステル類、ジアルキルアジペート、ジアルキル
フマレートあるいはマレイン酸エステル類等が挙げられ
る。上記化合物中、アルキル基の炭素数は好ましくは１
〜８である。芳香族カルボン酸エステル類がより好まし
く使用される。該防虫剤は、複合繊維中に好ましくは
０．１〜１０重量％、特に好ましくは０．５〜２重量％
含まれる。上記範囲未満では、防虫効果を十分に発揮す
ることができず、上記範囲を超えても、顕著な効果の増
加は認められず、コストの増加につながるため好ましく
ない。In the present invention, the insect repellent contained in the core is selected to be a compound which is compatible with the above-mentioned polyolefin, has stability at the temperature when mixed with the polyolefin, and has a high insect repellent effect and is safe. It is preferable.
Examples thereof include aromatic carboxylic acid esters such as orthodialkyl phthalate, isodialkyl phthalate and teredialkyl phthalate, dialkyl adipates, dialkyl fumarate and maleic acid esters. In the above compounds, the carbon number of the alkyl group is preferably 1
~ 8. Aromatic carboxylic acid esters are more preferably used. The insect repellent is preferably contained in the conjugate fiber in an amount of 0.1 to 10% by weight, particularly preferably 0.5 to 2% by weight.
included. If it is less than the above range, the insect repellent effect cannot be sufficiently exerted, and if it exceeds the above range, no remarkable increase in the effect is observed and the cost is increased, which is not preferable.
【００１０】本発明の複合繊維は、更に芯部に、平均粒
径Ｄ50が好ましくは０．００１〜０．０１０μｍ、特に
好ましくは０．００２〜０．００５μｍである二酸化チ
タン及び／又は二酸化ケイ素（以下では徐放化剤という
ことがある）を含むことができる。これにより、芯部に
含められた防虫剤を更に効率良く、長期間に亘って徐々
に揮散させることができるため好ましい。平均粒径が上
記範囲未満では分散不良が生じ、上記範囲を超えては上
記効果を有効に発揮することができず好ましくない。該
徐放化剤は、防虫剤１００重量部に対して好ましくは１
０〜１００重量部、特に好ましくは２５〜４５重量部含
まれる。上記範囲未満では、上記効果を十分に発揮する
ことができず、上記範囲を超えても、顕著な効果の増加
は認められず、また、繊維物性が変わるので好ましくな
い。The composite fiber of the present invention further comprises, in the core, titanium dioxide and / or silicon dioxide having an average particle diameter D 50 of preferably 0.001 to 0.010 μm, particularly preferably 0.002 to 0.005 μm. (Hereinafter, it may be referred to as a sustained release agent). This is preferable because the insect repellent contained in the core can be more efficiently volatilized gradually over a long period of time. When the average particle diameter is less than the above range, poor dispersion occurs, and when it exceeds the above range, the above effects cannot be effectively exhibited, which is not preferable. The sustained-release agent is preferably 1 part with respect to 100 parts by weight of the insect repellent.
0 to 100 parts by weight, particularly preferably 25 to 45 parts by weight are included. If it is less than the above range, the above effect cannot be sufficiently exhibited, and if it exceeds the above range, no remarkable increase in the effect is observed and the physical properties of the fiber are changed, which is not preferable.
【００１１】本発明の芯鞘型複合繊維において、芯部対
鞘部の体積比は、好ましくは２０／８０〜８０／２０、
特に好ましくは３０／７０〜４０／６０である。芯部体
積が上記下限値未満では、防虫剤を十分添加することが
できず防虫効果が低い。芯部体積が上記上限値を超えて
は、製品の強度、硬度等が低下するため好ましくない。In the core-sheath type composite fiber of the present invention, the volume ratio of the core part to the sheath part is preferably 20/80 to 80/20,
It is particularly preferably 30/70 to 40/60. If the core volume is less than the above lower limit, the insect repellent cannot be added sufficiently and the insect repellent effect is low. If the core volume exceeds the above upper limit, the strength, hardness, etc. of the product will decrease, which is not preferable.
【００１２】上記防虫剤及び所望により徐放化剤を芯部
に添加する方法は、好ましくは下記の通りである。The method of adding the above insect repellent and optionally a sustained release agent to the core is preferably as follows.
【００１３】防虫剤及び所望により徐放化剤を液状分散
媒体と混合する。液状分散媒体は、防虫剤、徐放化剤及
び液状分散媒体の合計量に対して、好ましくは３０〜７
０重量％、特に好ましくは４０〜５０重量％となるよう
に含められる。上記範囲を超えては、紡糸性が低下し、
均質な繊維が得難く、上記範囲未満では、防虫剤及び徐
放化剤をポリオレフィン中に均一に分散することが困難
となり好ましくない。上記混合物の調製は、まず上記配
合比で各成分を、例えば三本ロール、ボールミル、サン
ドミル、アトライター、ニーダー等、又はこれらの組合
わせを用いて混練することにより行うことができる。An insect repellent and optionally a sustained release agent are mixed with the liquid dispersion medium. The liquid dispersion medium is preferably 30 to 7 relative to the total amount of the insect repellent, the sustained release agent and the liquid dispersion medium.
It is included so as to be 0% by weight, particularly preferably 40 to 50% by weight. If it exceeds the above range, the spinnability will decrease,
If it is less than the above range, it is difficult to uniformly disperse the insect repellent and the sustained-release agent in the polyolefin, which is not preferable. The above mixture can be prepared by first kneading the components in the above mixing ratio using, for example, a three-roll mill, a ball mill, a sand mill, an attritor, a kneader, or a combination thereof.
【００１４】次に、このようにして調製された混合物
は、別途溶融されたポリオレフィンに好ましくは１３０
〜１８０℃、特に好ましくは１３０〜１５０℃で均一に
混合される。上記範囲未満の温度ではポリオレフィン中
に防虫剤及び徐放化剤を均一に混練することができず、
上記範囲を超える温度では防虫剤の劣化及び発煙が激し
くなり好ましくない。上記ポリオレフィンとの混合は、
例えば、二軸押出機を用いて上記温度に溶融されたポリ
オレフィン中に、プランジャーポンプ又はギアポンプで
計量された上記混合物をサイドフィードすることにより
実施し得る。The mixture thus prepared is then added to a separately melted polyolefin, preferably 130
-180 degreeC, Especially preferably, it is mixed uniformly at 130-150 degreeC. At a temperature below the above range, it is not possible to uniformly knead the insect repellent and the sustained release agent in the polyolefin,
If the temperature exceeds the above range, the insect repellent is deteriorated and smoke is generated, which is not preferable. Mixing with the above polyolefin,
For example, it can be carried out by side-feeding the above-mentioned mixture metered by a plunger pump or a gear pump into the polyolefin melted at the above temperature using a twin-screw extruder.
【００１５】次に、別途溶融された上記ポリエステルを
鞘部として、多成分紡糸機を使用して、紡糸され、本発
明の複合繊維を製造する。Next, the separately melted polyester is used as a sheath portion and spun using a multi-component spinning machine to produce the conjugate fiber of the present invention.
【００１６】ここで使用する液状分散媒体としては特に
制限はなく、特公平３‐４７３２７号公報に記載された
ものを挙げることができる。例えば、ジオクチルフタレ
ート、ジイソデシルアジペート等の可塑剤、大豆油、あ
まに油、エポキシ化大豆油、エポキシ化あまに油等の植
物油及びエポキシ化植物油、流動パラフィン、液状ポリ
ブテン、ノニオン系界面活性剤、液状ポリエステル等の
公知の液状分散媒体を用いることができる。耐熱性、分
散安定性等の点から液状ポリエステルを用いることが好
ましい。液状ポリエステルとは、ポリカルボン酸とポリ
オールとを主成分として反応させて得られる液状でエス
テル結合を三個以上有するものであり、脂肪族系及び芳
香族系ポリエステルが挙げられる。脂肪族系ポリエステ
ルが特に好ましい。The liquid dispersion medium used here is not particularly limited, and examples thereof include those described in Japanese Patent Publication No. 3-47327. For example, dioctyl phthalate, plasticizer such as diisodecyl adipate, soybean oil, linseed oil, epoxidized soybean oil, vegetable oil such as epoxidized linseed oil and epoxidized vegetable oil, liquid paraffin, liquid polybutene, nonionic surfactant, liquid A known liquid dispersion medium such as polyester can be used. From the viewpoint of heat resistance and dispersion stability, it is preferable to use liquid polyester. The liquid polyester is a liquid obtained by reacting a polycarboxylic acid and a polyol as main components and has three or more ester bonds, and examples thereof include an aliphatic polyester and an aromatic polyester. Aliphatic polyesters are particularly preferred.
【００１７】脂肪族系ポリエステルとしては、例えば特
開平５‐２７９９２０号公報に記載されたものを挙げる
ことができる。即ち、脂肪族系ポリエステルとしては、
芯部を形成するポリオレフィンへの注入が困難にならな
い程度で、高い粘度を有し、加熱減量が少なく、更に上
記ポリオレフィンとの反応性が低くて、高分子状態を維
持し得るものを用いることが好ましい。このような脂肪
族系ポリエステルとしては、２５℃における粘度が好ま
しくは１５，０００〜１００，０００センチポイズであ
る。粘度が上記範囲を超えては、ポリオレフィンへの注
入が困難になるため好ましくない。また、その平均分子
量は、好ましくは３，５００〜２０，０００、特に好ま
しくは４，０００〜２０，０００である。平均分子量が
上記範囲を超えては、上記と同じくポリオレフィンへの
注入が困難になるため好ましくない。更に、加熱減量が
２％以下、水酸基価が２０ｍｇＫＯＨ／ｇ以下の脂肪族
系ポリエステルを用いることが好ましい。ここで、上記
加熱減量は１０℃／分で６０℃から３１０℃まで加熱し
た場合の値を示した。Examples of the aliphatic polyester include those described in JP-A-5-279920. That is, as the aliphatic polyester,
It is preferable to use a material that has a high viscosity, a small heating loss, and a low reactivity with the above polyolefin, which can maintain a high molecular state, so that it is not difficult to inject it into the polyolefin forming the core. preferable. As such an aliphatic polyester, the viscosity at 25 ° C. is preferably 15,000 to 100,000 centipoise. If the viscosity exceeds the above range, it is difficult to inject it into the polyolefin, which is not preferable. The average molecular weight thereof is preferably 3,500 to 20,000, particularly preferably 4,000 to 20,000. If the average molecular weight exceeds the above range, it becomes difficult to inject the same into the polyolefin, which is not preferable. Furthermore, it is preferable to use an aliphatic polyester having a heating loss of 2% or less and a hydroxyl value of 20 mgKOH / g or less. Here, the above-mentioned heating weight loss shows the value when heating from 60 ° C. to 310 ° C. at 10 ° C./min.
【００１８】上記のような脂肪族系ポリエステルとして
は、例えばアジピン酸、セバシン酸、アゼライン酸又は
グルタル酸等の脂肪族ジカルボン酸と、エチレングリコ
ール、プロピレングリコール、１，３‐ブタンジオー
ル、ペンチルグリコール、ヘキシルグリコール、ジエチ
レングリコール等のグリコールとあるいはポリエチレン
グリコール、ポリプロピレングリコール、ポリブチレン
グリコール等のポリアルキレングリコールとを共重合し
たもの、又はこれらの脂肪族ジカルボン酸とグリコール
とより得られるポリエステルの少なくとも一方の末端を
プロピルアルコール、ブチルアルコール、アミルアルコ
ール等の一価アルコールで封鎖したものが用いられる。
脂肪族系ポリエステルの酸成分としては、好ましくはア
ジピン酸、セバシン酸が用いられ、またグリコール成分
としては、好ましくはエチレングリコール又は１，３‐
ブタンジオールが用いられる。また、ポリエステルの末
端を封鎖する一価のアルコールとしてはプロピルアルコ
ールが好ましい。Examples of the above-mentioned aliphatic polyesters include aliphatic dicarboxylic acids such as adipic acid, sebacic acid, azelaic acid and glutaric acid, ethylene glycol, propylene glycol, 1,3-butanediol, pentyl glycol, Hexyl glycol, glycol such as diethylene glycol or a copolymer of polyethylene glycol, polypropylene glycol, polyalkylene glycol such as polybutylene glycol, or at least one terminal of polyester obtained from these aliphatic dicarboxylic acid and glycol Those blocked with monohydric alcohols such as propyl alcohol, butyl alcohol, and amyl alcohol are used.
As the acid component of the aliphatic polyester, adipic acid and sebacic acid are preferably used, and as the glycol component, ethylene glycol or 1,3-
Butanediol is used. Propyl alcohol is preferred as the monohydric alcohol that blocks the ends of the polyester.
【００１９】以上のようにして製造された本発明の芯鞘
型複合繊維は、好ましくはシート、不織布等として使用
され、防虫性を長期間持続することができる。The core-sheath type composite fiber of the present invention produced as described above is preferably used as a sheet, a non-woven fabric or the like, and the insect repellent property can be maintained for a long period of time.
【００２０】以下、本発明を実施例により更に詳細に説
明するが、本発明はこれら実施例により限定されるもの
ではない。Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
【００２１】[0021]
【実施例】以下の実施例、比較例においては下記の化合
物を使用した。 ＜防虫剤＞芳香族カルボン酸系防虫剤（マルカマイトＥ
Ｄ、商標、大阪化成株式会社製、２５℃における粘度が
１３センチポイズの液状防虫剤） ＜二酸化チタン＞ 平均粒径Ｄ50：０．００２μｍ ＜液状分散媒体＞セバシン酸系ポリエステル（平均分子
量８，０００、２５℃における粘度７０，０００センチ
ポイズ、加熱減量２．１重量％、水酸基価１２．０ｍｇ
ＫＯＨ／ｇ）EXAMPLES The following compounds were used in the following examples and comparative examples. <Insect repellent> Aromatic carboxylic acid-based insect repellent (Marcamite E
D, trademark, a liquid insect repellent having a viscosity of 13 centipoise at 25 ° C. manufactured by Osaka Kasei Co., Ltd. <Titanium dioxide> Average particle size D 50 : 0.002 μm <Liquid dispersion medium> Sebacic acid type polyester (average molecular weight 8,000) , Viscosity at 25 ° C 70,000 centipoise, loss on heating 2.1% by weight, hydroxyl value 12.0 mg
KOH / g)
【００２２】[0022]
【実施例１】上記の防虫剤５０重量部、二酸化チタン２
０重量部及び液状分散媒体３０重量部を三本ロールにて
混練して混合物を調製した。次に、バレル温度１４０℃
に設定した二軸押出機にて溶融したポリエチレン（以下
ではＰＥと略すことがある）１００重量部に対し、上記
混合物２重量部をサイドフィードして混練し、芯成分と
した。次に、数平均分子量２１，０００のポリエチレン
テレフタレート（以下ではＰＥＴと略すことがある）を
鞘成分として芯鞘型複合繊維を紡糸した。これを常法に
従って延伸して繊度６．０デニールの本発明の複合繊維
を製造した。該複合繊維は、芯部対鞘部の体積比が５０
／５０であった。該複合繊維中の防虫剤の含有量は０．
７２重量％であった。Example 1 50 parts by weight of the above insect repellent, titanium dioxide 2
A mixture was prepared by kneading 0 parts by weight and 30 parts by weight of the liquid dispersion medium with a triple roll. Next, barrel temperature 140 ℃
2 parts by weight of the above mixture was side-fed and kneaded with 100 parts by weight of polyethylene (hereinafter sometimes abbreviated as PE) melted by the twin-screw extruder set as above to obtain a core component. Next, a core-sheath type composite fiber was spun using polyethylene terephthalate having a number average molecular weight of 21,000 (hereinafter sometimes abbreviated as PET) as a sheath component. This was drawn according to a conventional method to produce the conjugate fiber of the present invention having a fineness of 6.0 denier. The composite fiber has a core-to-sheath volume ratio of 50.
It was / 50. The content of the insect repellent in the composite fiber is 0.
It was 72% by weight.
【００２３】該複合繊維について、防虫剤の残存率及び
コナヒョウダニに対する忌避率の経時変化を調べた。ま
た、該複合繊維とポリエステル繊維（レギュラー繊維）
の夫々５０重量部から成る混合繊維について、コナヒョ
ウダニに対する忌避率の経時変化を調べた。With respect to the composite fiber, changes with time in the residual rate of the insect repellent and the repellent rate against Dermatophagoides farinae were examined. In addition, the composite fiber and polyester fiber (regular fiber)
The mixed fiber consisting of 50 parts by weight of each of the above was examined for the change with time in the repelling rate against Dermatophagoides farinae.
【００２４】防虫剤の含有量は、該複合繊維を溶解した
後、ガスクロマトグラフィーで分析して測定したもので
ある。残存率は、防虫剤の含有量を添加量で割った値を
百分率で表示したものである。The content of the insect repellent is measured by dissolving the composite fiber and then analyzing it by gas chromatography. The residual rate is a value obtained by dividing the content of the insect repellent by the amount added and expressed as a percentage.
【００２５】コナヒョウダニに対する忌避率は、大阪府
立公衆衛生研究所法式に従い、直径３ｃｍのシャーレを
粘性シート上に置き、その周囲に６個の同一シャーレを
中央のシャーレと接するように置き、周囲の６個のシャ
ーレには、防虫性を付与した本発明の複合繊維（処理
区）と防虫性を付与していない未処理の繊維（無処理
区）を交互に入れ、各繊維上に粉末飼料０．０５ｇを置
く一方、中央のシャーレには粉末飼料を入れずダニのみ
を入れ、湿度７５％に保って、２５℃の高温気中で２４
時間放置し、周囲の６個のシャーレに侵入したダニの数
を数え、以下の式により忌避率を求めた。The repellent rate against Dermatophagoides farinae was determined by placing a petri dish with a diameter of 3 cm on a viscous sheet according to the law of Osaka Prefectural Institute of Public Health, placing 6 identical petri dishes around the petri dish in contact with the central petri dish. Into each petri dish, the composite fiber of the present invention to which insect repellency was imparted (treated group) and the untreated fiber to which insect repellency was not imparted (untreated group) were alternately placed, and powder feed 0. While putting 05g, the center petri dish does not contain powdered feed but only mites, keep the humidity at 75%, and keep it in high temperature air at 25 ° C for 24 hours.
After allowing to stand for a period of time, the number of mites that had invaded the 6 petri dishes in the surroundings was counted, and the repellent rate was calculated by the following formula.
【００２６】忌避率（％）＝［（無処理区の侵入ダニ数
−処理区の侵入ダニ数）／無処理区の侵入ダニ数］×１
００Repelling rate (%) = [(number of invading mites in untreated area-number of invading mites in treated area) / number of invading mites in untreated area] × 1
00
【００２７】[0027]
【実施例２】二酸化チタンを添加せず、防虫剤及び液状
分散媒体を夫々５０重量部混練して混合物を調製した以
外は、実施例１と同一にして複合繊維を製造した。該繊
維の繊度は６．０デニールであり、芯部対鞘部の体積比
が５０／５０であった。該複合繊維中の防虫剤の含有量
は０．６８重量％であった。Example 2 A composite fiber was produced in the same manner as in Example 1 except that 50 parts by weight of each of the insect repellent and the liquid dispersion medium was kneaded without adding titanium dioxide. The fiber had a fineness of 6.0 denier and a core-to-sheath volume ratio of 50/50. The content of the insect repellent in the composite fiber was 0.68% by weight.
【００２８】次に、実施例１と同じく、防虫剤の残存率
及びコナヒョウダニに対する忌避率の経時変化を調べ
た。Then, as in Example 1, changes with time in the residual rate of the insect repellent and the repellent rate against Dermatophagoides farinae were examined.
【００２９】[0029]
【比較例１】上記の防虫剤５０重量部及び液状分散媒体
５０重量部を三本ロールにて混練して混合物を調製し
た。Comparative Example 1 50 parts by weight of the above insect repellent and 50 parts by weight of a liquid dispersion medium were kneaded with a three-roll to prepare a mixture.
【００３０】次に、実施例１で使用したと同一の数平均
分子量２１，０００のＰＥＴ１００重量部に対して、上
記の混合物３重量部を添加した後、これをポリマー流路
に設けたスタティクミキサー（ケニックス社製）及びＢ
ＫＭミキサー（ズルサー社製）を用いて急速混練させ、
その後常法に従って紡糸し、これを延伸して繊度７．７
８デニールの防虫性ポリエステル繊維を製造した。紡糸
した糸を延伸するにあたっては、防虫剤が蒸発するのを
抑制するため、乾燥における熱セット温度を１３０℃以
下にした。Next, after adding 3 parts by weight of the above mixture to 100 parts by weight of PET having the same number average molecular weight of 21,000 as that used in Example 1, this was added to a polymer channel. Mixer (Kenix) and B
Knead rapidly using a KM mixer (Zulcer),
Then, it is spun according to a conventional method, and this is stretched to have a fineness of 7.7.
8 denier insect repellent polyester fibers were produced. In drawing the spun yarn, the heat setting temperature during drying was set to 130 ° C. or lower in order to suppress evaporation of the insect repellent.
【００３１】次に、実施例１と同じく、防虫剤の残存率
及びコナヒョウダニに対する忌避率の経時変化を調べ
た。Next, as in the case of Example 1, changes with time of the residual rate of the insect repellent and the repellent rate against Dermatophagoides farinae were examined.
【００３２】以上の結果を表１に示す。The above results are shown in Table 1.
【００３３】[0033]
【表１】 実施例１の繊維は、従来の練り込み方法で製造した防虫
性ポリエステル繊維である比較例１に比べて、防虫剤残
存率は生産時及び一年経過後共に著しく高い。実施例１
の繊維の忌避率は、比較例１に比べて、防虫繊維のみ及
び防虫繊維とレギュラー繊維の混合繊維のいずれの場合
にも、生産時及び一年経過後共により優れている。この
様に、実施例１の繊維は、比較例１に比べて、忌避率の
経時的低下は著しく小さく、防虫効果を長期間持続し得
ることが分かった。実施例２は、二酸化チタンを添加し
なかったものである。実施例２の繊維の防虫剤残存率
は、比較例１に比べて、生産時及び一年経過後共に著し
く高い。繊維の忌避率も、実施例２の繊維は、比較例１
に比べて、防虫繊維のみ及び防虫繊維とレギュラー繊維
の混合繊維のいずれの場合にも、生産時及び一年経過後
共により優れている。従って、上記と同様に実施例２の
繊維も、比較例１に比べて、忌避率の経時的低下は著し
く小さく、防虫効果を長期間持続し得ることが分かっ
た。[Table 1] The fiber of Example 1 has remarkably high insecticidal agent residual ratio both at the time of production and after one year has passed, as compared with Comparative Example 1 which is an insect-proof polyester fiber produced by a conventional kneading method. Example 1
The repellent rate of the fiber is superior to that of Comparative Example 1 both in the case of the insect-proof fiber alone and in the case of the mixed fiber of the insect-proof fiber and the regular fiber, both at the time of production and after one year. As described above, it was found that the fiber of Example 1 had a significantly smaller repellent rate over time than that of Comparative Example 1 and could maintain the insect repellent effect for a long period of time. In Example 2, titanium dioxide was not added. The insecticide residual ratio of the fiber of Example 2 is significantly higher than that of Comparative Example 1 both at the time of production and after one year. The repellent rate of the fiber is also the same as that of the fiber of Example 2 in Comparative Example 1.
Compared with the above, both in the case of the insect-proof fiber alone and in the case of the mixed fiber of the insect-proof fiber and the regular fiber, it is superior both at the time of production and after one year. Therefore, similarly to the above, the fiber of Example 2 was found to have a significantly smaller repellent rate over time than that of Comparative Example 1, and the insect repellent effect can be maintained for a long period of time.
【００３４】一方、実施例１及び２から、二酸化チタン
を添加することにより防虫剤を徐々に揮散せしめ、防虫
効果を更に長期間に亘って維持し得ることが分かった。On the other hand, from Examples 1 and 2, it was found that by adding titanium dioxide, the insect repellent can be gradually volatilized and the insect repellent effect can be maintained for a longer period of time.
【００３５】[0035]
【発明の効果】本発明は、防虫効果を長期間持続し得る
と共に、安価な芯鞘型複合繊維を提供する。INDUSTRIAL APPLICABILITY The present invention provides an inexpensive core-sheath type composite fiber which can maintain the insect repellent effect for a long period of time.
Claims (4)
て、芯部が防虫剤を含むポリオレフィンであり、かつ鞘
部がポリエステルであることを特徴とする繊維。1. A composite fiber comprising a sheath and a core, wherein the core is a polyolefin containing an insect repellent and the sheath is polyester.
２０，０００であり、かつ２５℃における粘度が１５，
０００〜１００，０００センチポイズである脂肪族系ポ
リエステルを含む請求項１記載の繊維。2. The core has an average molecular weight of 3,500 to
20,000 and a viscosity at 25 ° C. of 15,
The fiber according to claim 1, comprising an aliphatic polyester having a viscosity of 000 to 100,000 centipoise.
〜０．０１０μｍである二酸化チタン及び／又は二酸化
ケイ素を含む請求項１又は２記載の繊維。3. The core has an average particle diameter D 50 of 0.001.
The fiber according to claim 1 or 2, comprising titanium dioxide and / or silicon dioxide having a thickness of about 0.010 μm.
０／２０である請求項１〜３のいずれか一つに記載の繊
維。4. The volume ratio of the core portion to the sheath portion is 20/80 to 8
The fiber according to any one of claims 1 to 3, which is 0/20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273091A JPH08113828A (en) | 1994-10-13 | 1994-10-13 | Insect repellent core-sheath type conjugated fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6273091A JPH08113828A (en) | 1994-10-13 | 1994-10-13 | Insect repellent core-sheath type conjugated fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08113828A true JPH08113828A (en) | 1996-05-07 |
Family
ID=17523022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6273091A Pending JPH08113828A (en) | 1994-10-13 | 1994-10-13 | Insect repellent core-sheath type conjugated fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08113828A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003524534A (en) * | 1998-10-02 | 2003-08-19 | ザ、プロクター、エンド、ギャンブル、カンパニー | Elastic laminate and disposable garment using the same |
| WO2005044533A1 (en) * | 2003-11-07 | 2005-05-19 | Sumitomo Chemical Company, Limited | Olefin resin pellet of two-layer structure for insect control resin composition |
| CN100350085C (en) * | 2005-11-11 | 2007-11-21 | 天津工业大学 | An anti-mosquito false twist yarn and producing method thereof |
| WO2008047604A1 (en) * | 2006-09-29 | 2008-04-24 | Sumitomo Chemical Company, Limited | Polymer composition, process for producing fiber and the fiber |
| WO2009003468A1 (en) * | 2007-06-29 | 2009-01-08 | Vestergaard Frandsen Sa | Insecticidal thread |
| JP2011126826A (en) * | 2009-12-18 | 2011-06-30 | Sumitomo Chemical Co Ltd | Molded product made of polymer composition |
| JP5667981B2 (en) * | 2010-06-08 | 2015-02-12 | 三菱レイヨン・テキスタイル株式会社 | Core-sheath composite fiber, false twisted yarn comprising the same core-sheath composite fiber, method for producing the same, and woven or knitted fabric composed of these fibers |
| KR20170122237A (en) * | 2015-03-09 | 2017-11-03 | 가부시키가이샤 엔비씨 메슈테크 | Insecticide fiber and insect screen using it |
| WO2017216674A1 (en) * | 2016-06-15 | 2017-12-21 | University Of Pretoria | Composite polymer fibres |
-
1994
- 1994-10-13 JP JP6273091A patent/JPH08113828A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003524534A (en) * | 1998-10-02 | 2003-08-19 | ザ、プロクター、エンド、ギャンブル、カンパニー | Elastic laminate and disposable garment using the same |
| WO2005044533A1 (en) * | 2003-11-07 | 2005-05-19 | Sumitomo Chemical Company, Limited | Olefin resin pellet of two-layer structure for insect control resin composition |
| GB2424899A (en) * | 2003-11-07 | 2006-10-11 | Sumitomo Chemical Co | Olefin resin pellet of two-layer structure for insect control resin composition |
| GB2424899B (en) * | 2003-11-07 | 2008-07-30 | Sumitomo Chemical Co | Two-Layered Olefin-Based Resin Pellets For Insecticidal Resin Composition |
| AP2197A (en) * | 2003-11-07 | 2011-01-17 | Sumitomo Chemical Co | Olefin Resin Pellet of two-layer structure for insect control resin composition. |
| US7541050B2 (en) | 2003-11-07 | 2009-06-02 | Sumitomo Chemical Company, Limited | Two-layered olefin-based resin pellets for insecticidal resin composition |
| CN100350085C (en) * | 2005-11-11 | 2007-11-21 | 天津工业大学 | An anti-mosquito false twist yarn and producing method thereof |
| WO2008047604A1 (en) * | 2006-09-29 | 2008-04-24 | Sumitomo Chemical Company, Limited | Polymer composition, process for producing fiber and the fiber |
| JP2010532325A (en) * | 2007-06-29 | 2010-10-07 | ベステルガールド フランドセン ソシエテ アノニム | Insecticidal thread |
| WO2009003468A1 (en) * | 2007-06-29 | 2009-01-08 | Vestergaard Frandsen Sa | Insecticidal thread |
| EP3056084A1 (en) * | 2007-06-29 | 2016-08-17 | Vestergaard Frandsen SA | Insecticidal co-extruded monofilament |
| JP2011126826A (en) * | 2009-12-18 | 2011-06-30 | Sumitomo Chemical Co Ltd | Molded product made of polymer composition |
| JP5667981B2 (en) * | 2010-06-08 | 2015-02-12 | 三菱レイヨン・テキスタイル株式会社 | Core-sheath composite fiber, false twisted yarn comprising the same core-sheath composite fiber, method for producing the same, and woven or knitted fabric composed of these fibers |
| KR20170122237A (en) * | 2015-03-09 | 2017-11-03 | 가부시키가이샤 엔비씨 메슈테크 | Insecticide fiber and insect screen using it |
| TWI702910B (en) * | 2015-03-09 | 2020-09-01 | 日商Ｎｂｃ紗網技術股份有限公司 | Insect-proof fiber and insect-proof net using the fiber |
| WO2017216674A1 (en) * | 2016-06-15 | 2017-12-21 | University Of Pretoria | Composite polymer fibres |
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