JP3162926B2 - Method for producing urethane elastic fiber - Google Patents
Method for producing urethane elastic fiberInfo
- Publication number
- JP3162926B2 JP3162926B2 JP28144494A JP28144494A JP3162926B2 JP 3162926 B2 JP3162926 B2 JP 3162926B2 JP 28144494 A JP28144494 A JP 28144494A JP 28144494 A JP28144494 A JP 28144494A JP 3162926 B2 JP3162926 B2 JP 3162926B2
- Authority
- JP
- Japan
- Prior art keywords
- spinning
- yarn
- bobbin
- polyetheramine
- sticking
- 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
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
- Chemical Treatment Of Fibers During Manufacturing Processes (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、溶融紡糸法によるポリ
ウレタン弾性繊維の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a polyurethane elastic fiber by a melt spinning method.
【0002】更に詳しくは、ポリウレタン弾性繊維を溶
融紡糸する時に、紡糸ボビン上での糸間の膠着を防止
し、後次加工工程での糸の解舒性を良好にすると共に、
糸の滑りを適度に保ち、紡糸ボビン等の綾落ち、崩れを
防止し、紡糸および後の加工工程での操業性を安定化さ
せる方法に関するものである。More specifically, when the polyurethane elastic fiber is melt-spun, sticking between the yarns on a spinning bobbin is prevented, and the unwinding property of the yarn in a subsequent processing step is improved.
The present invention relates to a method for maintaining a moderate slippage of a yarn, preventing a yarn bobbin or the like from falling and breaking, and stabilizing operability in the spinning and subsequent processing steps.
【0003】[0003]
【従来の技術】ポリウレタン弾性繊維を得る方法として
は、従来から溶融紡糸法、乾式紡糸法、湿式紡糸法等が
行われており、又最近はウレタン糸の伸縮特性、耐熱特
性を向上させるために活性イソシアナート基を有するプ
レポリマーを混合して紡糸する方法が利用される事が多
い。これらの方法ではいずれの場合でも紡出時に繊維を
巻き取った際、繊維同志が膠着し、そのため後次工程で
ボビンから糸を解舒して引き出す時、膠着の抵抗のため
糸の引き出しが困難で糸切れが発生し、順調な操業が出
来ない状態が発生する。特に、活性イソシアナート基が
多量に存在するプレポリマー混合紡糸法ではこの膠着が
著しく、通常の油剤を付与したのでは後次工程で糸の引
き出しが出来るものは得られない。2. Description of the Related Art Melt spinning, dry spinning, wet spinning, and the like have been conventionally used as methods for obtaining polyurethane elastic fibers. Recently, in order to improve the stretchability and heat resistance of urethane yarns. A method of mixing and spinning a prepolymer having an active isocyanate group is often used. In any of these methods, when the fibers are wound during spinning, the fibers adhere to each other, and when the yarn is unwound from the bobbin in the subsequent process and pulled out, it is difficult to pull out the yarn due to the resistance of the adhesive. In this case, thread breakage occurs, and a state where smooth operation cannot be performed occurs. In particular, in the prepolymer mixed spinning method in which a large amount of active isocyanate groups are present, this agglomeration is remarkable, and if an ordinary oil agent is applied, no thread can be pulled out in the subsequent step.
【0004】このポリウレタンの膠着を防止する方法に
は、タルク、シリカ、コロイダルアルミナ等の固体微粒
子を水性または油性スラリーとして繊維に付与する方
法、高級脂肪酸の金属塩粉末を水又は鉱物油に分散させ
る方法(特公昭41−286号公報、特公昭40−55
7号公報)高級脂肪族カルボン酸、高級脂肪族アルコー
ル、パラフィン、酸化ポリエチレン等の常温固体のワッ
クスを使用する方法(特公昭43−272号公報、特公
昭43−9955号公報、特公昭44−8907号公
報)、常温液状物質としてポリアルキレンオキサイド変
性シリコン(特公昭44−8907号公報)、環状アミ
ルシロキサン(特公昭39−24858号公報)など多
くの方法が提案されている。[0004] As a method for preventing the sticking of polyurethane, a method of applying solid fine particles of talc, silica, colloidal alumina or the like to the fiber as an aqueous or oily slurry, a method of dispersing a metal salt powder of a higher fatty acid in water or mineral oil. Method (JP-B-41-286, JP-B-40-55)
No. 7) Methods using room temperature solid waxes such as higher aliphatic carboxylic acids, higher aliphatic alcohols, paraffins and polyethylene oxide (JP-B-43-272, JP-B-43-9955, JP-B-44-197). Many methods have been proposed, including polyalkylene oxide-modified silicon (Japanese Patent Publication No. 44-8907) and cyclic amylsiloxane (Japanese Patent Publication No. 39-24858) as liquid substances at room temperature.
【0005】しかし、これら離型効果を主体とした膠着
防止剤では後述のイソシアナート基による化学反応によ
る膠着には効果なく、十分に満足がゆく方法とは言い難
い。[0005] However, these anti-adhesion agents mainly based on the release effect have no effect on the post-adhesion chemical reaction due to the isocyanate group described below, and cannot be said to be a sufficiently satisfactory method.
【0006】ポリウレタン弾性糸の紡糸における糸間の
膠着は、ポリウレタンのゴム状粘着性に因るものではな
く、一般に自着作用と言われている糸表面の活性イソシ
アナート基の糸表面での化学反応による膠着(アロハネ
ート結合、その他の化学結合の生成)が起こる。この自
着作用はポリマー表面に存在するイソシアナート基が多
いほど、糸表面の化学反応が進み、強固な膠着を形成す
る。紡糸直後には糸の解舒が可能なボビンでも数日間経
過すると糸間の自着作用が進み、糸の解舒が不能とな
り、極端な場合にはボビンに巻かれた糸の各層が板状に
膠着してしまい、まったく糸が引き出せない状態になっ
てしまう。The adhesion between the yarns in the spinning of the polyurethane elastic yarn is not due to the rubbery tackiness of the polyurethane, and the active isocyanate group on the yarn surface on the yarn surface is generally referred to as self-adhesion. Agglutination (the formation of allohanate bonds and other chemical bonds) occurs due to the reaction. In this self-adhesion action, as the number of isocyanate groups present on the polymer surface increases, the chemical reaction on the yarn surface progresses, and a firm adhesion is formed. Immediately after spinning, even if the bobbin is capable of unwinding the yarn, the self-adhesion between the yarns progresses after several days, and the unwinding of the yarn becomes impossible.In extreme cases, each layer of the yarn wound on the bobbin has a plate shape. And the thread cannot be pulled out at all.
【0007】特に、この現象は溶融紡糸法でポリウレタ
ン弾性糸を製造する際に激しく、末端に活性イソシアナ
ート基を有するプレポリマーを混合紡糸する方法では、
その傾向が顕著であり、前述の離型性の膠着防止剤だけ
では十分な膠着防止性得られない。[0007] In particular, this phenomenon is severe when a polyurethane elastic yarn is produced by a melt spinning method. In a method of mixing and spinning a prepolymer having an active isocyanate group at a terminal,
This tendency is remarkable, and a sufficient anti-adhesion property cannot be obtained with only the above-mentioned releasable anti-adhesion agent.
【0008】このイソシアナート基の化学反応による膠
着を防止するためには、イソシアナート基の失活が必要
であり、活性水素基を有する失活剤を使用する方法が提
案されている。その方法として、既にモノアミンを溶解
した鉱物油を紡糸時に付与する方法(特公昭46−16
312号公報)、ジアミンを配合した油剤(特公昭58
−132170号公報)が提案されている。In order to prevent sticking due to the chemical reaction of the isocyanate group, it is necessary to deactivate the isocyanate group, and a method using a deactivator having an active hydrogen group has been proposed. As a method therefor, a method of applying a mineral oil in which a monoamine is already dissolved at the time of spinning (Japanese Patent Publication No. 46-16 / 1976)
No. 312), an oil agent containing a diamine (Japanese Patent Publication No. Sho 58)
-132170) has been proposed.
【0009】この方法は、イソシアナート基を失活する
には有効な方法であるが、溶融紡糸時にウレタンポリマ
ー自体の粘度が低かったり、低粘度のプレポリマーを紡
糸時に混合するため、溶融時のポリマー粘度が下がり紡
出直後の糸状がまだ柔らかいうちに巻き取られる場合に
は、ポリウレタンの粘着による膠着が強くあらわれ、イ
ソシアナート基の失活剤だけでは十分な膠着防止性を得
ることができない。This method is an effective method to deactivate the isocyanate group. However, the viscosity of the urethane polymer itself is low during melt spinning, or a low-viscosity prepolymer is mixed during spinning. When the viscosity of the polymer is lowered and the filament immediately after spinning is wound up while still soft, sticking due to the adhesion of the polyurethane appears strongly, and a sufficient anti-sticking property cannot be obtained with the deactivator of the isocyanate group alone.
【0010】紡糸直後の離型性と活性イソシアナート基
の失活による効果の両特性を備えた膠着防止剤として、
既にアミノ変性シリコンを併用した油剤(特公昭44−
8907号公報)が提案されている。[0010] As an anti-sticking agent having both properties of releasing property immediately after spinning and the effect of deactivating the active isocyanate group,
Oils already used in combination with amino-modified silicone (JP-B-44-
No. 8907).
【0011】この方法は溶融紡糸時に、紡出糸条が柔ら
かく、かつ糸表面にイソシアナート基が多量に存在する
場合でもジメチルシリコン鎖の離型効果とアミノ基の活
性水素によるイソシアナート基の失活作用で優れた膠着
防止性を示す。In this method, even when the spun yarn is soft and a large amount of isocyanate groups are present on the yarn surface during melt spinning, the releasing effect of the dimethyl silicon chain and the loss of the isocyanate groups due to the active hydrogen of the amino groups are obtained. Shows excellent anti-sticking properties by active action.
【0012】しかし、十分な膠着防止性が得られるアミ
ノ変性シリコンでは、得られた糸条の繊維間摩擦力が極
めて低く、紡糸時の巻き取りボビン、並びに紡糸ボビン
から他ボビンに巻き返しをする際に、巻き返し糸の綾落
ち、崩れが起こる。そのために、膠着防止性をある程度
犠牲にし、巻き取り性に問題がないアミノ変性シリコン
を限定して使用せざるをえない。However, in the amino-modified silicone having sufficient anti-sticking properties, the obtained yarn has a very low frictional force between fibers, so that the winding bobbin at the time of spinning and the winding bobbin from the spinning bobbin to another bobbin can be used. In the meantime, the rewinding yarn will fall and collapse. For this reason, the amino-modified silicon which does not have a problem in the winding property has to be used while sacrificing the anti- sticking property to some extent.
【0013】上述のように膠着防止剤には各種の物質が
提案されている。膠着防止性だけから見るとほぼ満足で
きる組成は提案されているが、紡糸ならびに後加工工程
の操業性も含め、実際の使用に際し問題のない油剤は見
出されていない。As described above, various substances have been proposed as anti-sticking agents. Although an almost satisfactory composition has been proposed from the standpoint of anti-sticking property alone, no oil has been found which has no problem in practical use, including operability in spinning and post-processing steps.
【0014】[0014]
【発明が解決しようとする課題】本発明は、溶融紡糸法
などでポリウレタン弾性糸を紡糸する際に、糸表面に存
在する活性イソシアナート基による糸の膠着並びに経時
の膠着上昇を抑えると共に紡糸並びに後次工程でのボビ
ン綾落ち、崩れを防止し、紡糸から後工程において優れ
た操業性が得られるポリウレタンの製造方法を提供する
ことにある。DISCLOSURE OF THE INVENTION The present invention relates to a method for spinning polyurethane elastic yarn by a melt spinning method or the like, which suppresses the sticking of the yarn due to the active isocyanate group present on the surface of the yarn and the rise of the sticking with time, and the spinning and spinning. It is an object of the present invention to provide a method for producing a polyurethane, which prevents bobbin tearing and collapse in a subsequent step and obtains excellent operability in a subsequent step from spinning.
【0015】[0015]
【課題を解決するための手段】上記問題点を解決するた
め、紡糸時に付与する油剤組成について鋭意検討の結果
ウレタンポリマーを溶融紡糸するに際し、口金より出た
糸が固化した後で一般式Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have made intensive studies on the composition of an oil agent to be applied at the time of spinning.
【化2】 で示されるポリエーテルアミンを含有してなる水系エマ
ルジョンを付与し、引き続き非水系油剤を付与した後、
巻き取る事で本発明に到達したものである。Embedded image After giving an aqueous emulsion containing a polyetheramine represented by, and subsequently applying a non-aqueous oil agent,
The present invention has been achieved by winding.
【0016】本発明に使用されるポリエーテルアミン
は、分子中に存在するアミノ基の活性水素が糸表面に露
出したポリウレタンの活性なイソシアナート基と反応し
て、その反応性をなくす事でイソシアナート基の化学反
応による膠着発生を押さえることが出来る。The polyetheramine used in the present invention is characterized in that the active hydrogen of the amino group present in the molecule reacts with the active isocyanate group of the polyurethane exposed on the surface of the yarn, thereby eliminating the isocyanate. Agglutination due to the chemical reaction of the nato group can be suppressed.
【0017】本発明はウレタン単独の紡出にも有効であ
るが特に活性イソシアナート基を有するプレポリマーを
紡糸時に混合して紡出する場合など糸表面にイソシアナ
ート基が多量に存在する場合に本発明の効果がよく発揮
される。The present invention is effective for spinning urethane alone, but is particularly effective when a large amount of isocyanate groups are present on the yarn surface, such as when a prepolymer having an active isocyanate group is mixed during spinning and spun. The effect of the present invention is well exhibited.
【0018】本発明の複合繊維に使用するポリウレタン
は、溶融紡糸に供する事が出来る熱可塑性ポリウレタン
であればどのような組成でも使用出来る。又ポリウレタ
ンの伸縮物性並びに耐熱物性を向上させるため、紡糸時
にジイソシアナート化合物を混合紡糸で得られる物な
ど、紡糸時に何らかの変成を受けた物でも同様に使用出
来る。The polyurethane used for the conjugate fiber of the present invention can be any composition as long as it is a thermoplastic polyurethane that can be subjected to melt spinning. Further, in order to improve the elasticity and heat resistance of polyurethane, materials which have undergone some modification during spinning, such as those obtained by mixing and spinning a diisocyanate compound during spinning, can also be used.
【0019】熱可塑性ポリウレタンを構成するポリオー
ル成分としては、ポリエチレングリコール、ポリプロピ
レングリコール、ポリテトラメチレングリコール、エチ
レンオキサイドとプロピレンオキサイドの共重合体など
のポリエーテル、ポリエチレングリコール、ポリプロピ
レングリコール、ポリテトラメチレングリコール、エチ
レンオキサイドとプロピレンオキサイドの共重合体とア
ジピン酸などの二塩基酸とのエステル、ポリε−カプロ
ラクトン、ポリヘキサメチレンカーボネート、シリコン
ポリオールなどが挙げられる。Polyol components constituting the thermoplastic polyurethane include polyethylene glycol, polypropylene glycol, polytetramethylene glycol, polyethers such as copolymers of ethylene oxide and propylene oxide, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and the like. Esters of a copolymer of ethylene oxide and propylene oxide with a dibasic acid such as adipic acid, polyε-caprolactone, polyhexamethylene carbonate, silicone polyol, and the like.
【0020】又、ジイソシアナート成分としては4.
4’−ジフェニルメタンジイソシアナート、4.4’−
ジシクロヘキシルメタンジイソシアナート、イソホロン
ジイソシアナート、ヘキサメチレンジイソシアナートが
挙げられる。As the diisocyanate component, 4.
4'-diphenylmethane diisocyanate, 4.4'-
Examples include dicyclohexylmethane diisocyanate, isophorone diisocyanate, and hexamethylene diisocyanate.
【0021】ポリウレタン弾性繊維を紡糸する際に付与
する本発明の水系油剤は、ポリエーテルアミンのみを溶
解した水溶液を用いても良いし、糸への均一付着性を考
え水溶液の浸透性を上げるため浸透効果があるノニオン
活性剤を併用するか、又は糸の平滑性を上げるため、鉱
物油、脂肪酸エステル、ジメチルシロキサンを主体とし
た通常使用する油剤とポリエーテルアミンを混合使用し
ても良い。The aqueous oil agent of the present invention to be applied when spinning polyurethane elastic fibers may be an aqueous solution in which only polyetheramine is dissolved, or in order to increase the permeability of the aqueous solution in consideration of uniform adhesion to the yarn. A nonionic activator having a penetrating effect may be used in combination, or a commonly used oil agent mainly composed of mineral oil, fatty acid ester and dimethylsiloxane may be mixed with polyetheramine in order to increase the smoothness of the yarn.
【0022】ポリエーテルアミンの離型効果に発揮させ
るためには、高分子量のポリエーテルアミンの方が効果
的であるが200〜10000のものが使用される。分
子量2000未満では膠着の経時上昇は抑えられるが、
紡糸直後の離型効果がやや弱く、また10000を超え
る場合では紡糸時に付与する水溶液の粘度が高くなり過
ぎ、糸表面への均一付着性が悪くなり、膠着紡糸斑が発
生し好ましくない。In order to exert the releasing effect of the polyetheramine, a high molecular weight polyetheramine is more effective, but one having a molecular weight of 200 to 10,000 is used. When the molecular weight is less than 2,000, the increase of the sticking over time can be suppressed,
If the releasing effect immediately after spinning is slightly weak, and if it exceeds 10,000, the viscosity of the aqueous solution applied at the time of spinning becomes too high, the uniform adhesion to the yarn surface is deteriorated, and sticking spinning spots occur, which is not preferable.
【0023】ポリエーテルアミンのポリエチレングリコ
ールとポリプロピレングリコールの重量割合は任意のも
のが使用できるが、ポリプロピレングリコール部分が多
くなり過ぎると、ポリエーテルアミン単独では水溶性が
悪くなり、紡糸時に水溶液で糸に付与するとき使用し難
い。水溶性の点からは、ポリエチレングリコールが40
%以上のポリエーテルアミンが使いやすいが、その他の
組成のものでも、分散能が優れている界面活性剤を併用
して、エマルジョンとして使用すれば使用可能である。Any weight ratio of polyethylene glycol to polypropylene glycol of the polyetheramine can be used. However, if the polypropylene glycol portion is too large, the water solubility of the polyetheramine alone becomes poor, and the yarn is spun with an aqueous solution during spinning. Difficult to use when granting. In terms of water solubility, polyethylene glycol is 40
% Or more of polyetheramine is easy to use, but other compositions can also be used if used in combination with a surfactant having excellent dispersibility as an emulsion.
【0024】ポリエーテルアミンの糸への付与量は、紡
出糸条の膠着状況により適宜設定するがポリエーテルア
ミンの付与量が多すぎると、糸の平滑性が悪くなるの
で、0.5%以下、好ましくは0.3%以下がより好ま
しい。The application amount of the yarn of the polyether amines, by setting appropriately the sticking conditions of the spun yarn is applied amount of polyether A <br/> amine is too high, since the smoothness of the yarn is deteriorated , 0.5% or less, preferably 0.3% or less.
【0025】ポリエーテルアミン水溶液の糸への付与量
は、巻き取りボビンの表面に水滴がにじみ出さない程度
であればどの水準でもよいが、通常20重量%が限度で
あり、水溶液の付与量に応じ、ポリエーテルアミンの付
与量が0.5%以下になるように水溶液濃度は適宜決定
される。The amount of the aqueous solution of polyetheramine applied to the yarn may be any level as long as water droplets do not ooze onto the surface of the winding bobbin, but is usually limited to 20% by weight. Depending on the amount of polyetheramine applied . The concentration of the aqueous solution is appropriately determined so as to be 5% or less.
【0026】ポリエーテルアミンの付与だけでは糸の平
滑性が極めて悪いため、ポリエーテルアミンの付与に加
え、非水系配合油剤の付与が必須である。The application of polyetheramine alone results in extremely poor smoothness of the yarn. Therefore, in addition to the application of polyetheramine, the application of a non-aqueous blended oil is essential.
【0027】水系エマルジョンに引き続き付与される非
水系配合油剤は任意の組成のものが使用出来るが、糸へ
の均一付着のためと、紡糸時の油剤の粘性抵抗による糸
のローラーへの巻き付き防止のため、30℃の粘度は5
〜50CST以下が好ましい。The non-aqueous blended oil agent subsequently applied to the water-based emulsion may be of any composition, but may be used for uniform adhesion to the yarn and for preventing the yarn from winding around the roller due to the viscous resistance of the oil agent during spinning. Therefore, the viscosity at 30 ° C is 5
-50 CST or less is preferred.
【0028】又、非水系油剤に鉱物油や脂肪酸エステ
ル、ジメチルシロキサンなどの平滑剤油剤を使用する場
合、粘度が5CST未満では、油剤の揮発性が高く、紡
糸後に糸表面から揮散消失し、糸の平滑性低下を招き好
ましくない。When a non-aqueous oil agent such as a mineral oil, a fatty acid ester, or dimethylsiloxane is used as a lubricant, if the viscosity is less than 5 CST, the oil agent has high volatility and volatilizes and disappears from the yarn surface after spinning. Is unfavorably caused by a decrease in smoothness.
【0029】油剤を糸に付与する方法は、噴霧法、ロー
ラー表面接触法、給油ガイド法など、公知の方法が使用
出来るが、糸への均一付着を考えると給油ガイド法が最
良である。As a method for applying the oil agent to the yarn, known methods such as a spraying method, a roller surface contact method, and a lubrication guide method can be used, but the lubrication guide method is the best considering uniform adhesion to the yarn.
【0030】[0030]
【実施例】以下実施例により本発明を詳細に説明する。
本発明の効果を評価する方法として、膠着防止性の代用
特性である解舒張力(紡糸直後と経時後)、紡糸ボビン
や巻き返しボビンの巻崩れの代用特性である繊維間摩擦
力、紡糸ボビン巻崩れ状況を用いた。The present invention will be described in detail with reference to the following examples.
Examples of methods for evaluating the effects of the present invention include unwinding tension (immediately after spinning and after elapse of time) as a substitute property of anti-sticking property, inter-fiber friction force as a substitute property of collapse of a spinning bobbin and a rewind bobbin, and spinning bobbin winding. Collapse situation was used.
【0031】解舒張力 紡糸ボビンから1m/mi
nの引き取り速度で、糸を引き出した時の、ボビン表面
から糸を引きはがすのに要する張力を言い(図1参
照)、本方法で糸長5m当たりの最高張力20点の平均
値をもって解舒張力とする。測定は紡糸直後と7日後に
行った。Unwinding tension 1 m / mi from spinning bobbin
n means the tension required to separate the yarn from the bobbin surface when the yarn is pulled out at a take-up speed of n (see Fig. 1). Assume tension. Measurements were taken immediately after spinning and after 7 days.
【0032】繊維間摩擦力 総デニールが400デニ
ールとなるように、紡出糸を合糸し、図2に示す交差法
により二次張力を測定する。 (1)一時張力(初張力) 1グラム (2)糸交差回数 1回撚(360度回転) (3)糸速 2cm/min (4)測定温湿度 25℃、65%RHThe inter-fiber friction force The spun yarns are combined so that the total denier becomes 400 denier, and the secondary tension is measured by the crossing method shown in FIG. (1) Temporary tension (initial tension) 1 gram (2) Number of yarn crossings 1 twist (360 degree rotation) (3) Yarn speed 2 cm / min (4) Measurement temperature and humidity 25 ° C, 65% RH
【0033】紡糸ボビン巻崩れ 紡糸フリクションロ
ーラーと巻き取りボビンの接圧が500gで80mmの
巻幅(200φ巻き取りボビン)、綾角5度で40デニ
ールの糸を500m/minで10時間巻き取ったとき
の巻形状を肉眼観察し、綾落ち、崩れ、底糸広がりのな
いものを良とする。Spinning bobbin winding collapse A 40-denier yarn having a winding width of 80 mm (200-diameter winding bobbin) with a contact pressure of 500 g between the spinning friction roller and the winding bobbin and a winding angle of 5 degrees was wound at 500 m / min for 10 hours. The winding shape at that time is observed with the naked eye, and the one with no twill drop, collapse, or spreading of the bottom thread is regarded as good.
【0034】ポリエーテルアミンはメタノールを反応出
発物質として合成したメトキシポリオールを原料とし
て、実験化学講座28巻463頁に記載されている方法
により製造できる。The polyetheramine can be produced by a method described in Experimental Chemistry Lecture Vol. 28, p. 463 using methoxy polyol synthesized using methanol as a reaction starting material.
【0035】実施例1 ポリエーテルとして分子量1500のポリテトラメチレ
ングリコール、ジイソシアナート化合物として4.4’
−ジフェニルメタンジイソシアナート、鎖伸長剤として
1.4−ブタンジオールから成るショアー硬度90の熱
可塑性ポリウレタン弾性体を210℃で溶融してスクリ
ュー押し出し機にて押し出す際に、紡糸口金に入る前
に、分子量1500のポリ(1.4−オキシブチレン)
ジイソシアナートをポリウレタン重合体に対し、15重
量%混合した後、0.5mmのノズルより吐き出し、5
00m/minでボビンに巻き取り、40デニールのモ
ノフィラメントを得た。Example 1 Polytetramethylene glycol having a molecular weight of 1500 as a polyether and 4.4 'as a diisocyanate compound
When a thermoplastic polyurethane elastomer having a Shore hardness of 90 comprising diphenylmethane diisocyanate and 1.4-butanediol as a chain extender is melted at 210 ° C. and extruded with a screw extruder, before entering a spinneret, Poly (1.4-oxybutylene) having a molecular weight of 1500
After mixing 15% by weight of the diisocyanate with respect to the polyurethane polymer, the mixture was discharged from a 0.5 mm nozzle.
It was wound on a bobbin at 00 m / min to obtain a monofilament of 40 denier.
【0036】紡糸口金より押し出され、ボビンに巻き取
られるまでに、ポリエチレングリコールの重量割合が5
0%の分子量3500のポリエーテルアミンを溶解した
2重量%の水溶液を糸に対し20重量%付与した後、表
1に示す油剤A及び表2に示す油剤Bの非水系油剤に対
し2%付与し巻き取った。The weight ratio of polyethylene glycol is 5 before being extruded from the spinneret and wound on a bobbin.
After adding 20% by weight of a 2% by weight aqueous solution in which 0% polyetheramine having a molecular weight of 3500 is dissolved to the yarn, 2% is applied to the non-aqueous oils of the oil A shown in Table 1 and the oil B shown in Table 2. And wound up.
【0037】[0037]
【表1】 [Table 1]
【0038】[0038]
【表2】 [Table 2]
【0039】本発明の比較例として、ポリエーテルアミ
ン水溶液を紡糸後に付与しない場合の例として、油剤A
及びB及び表3の油剤Cの非水系油剤のみを使用した場
合と、ポリエーテルアミンのみを付与した場合について
も同様に糸を採取し評価した。As a comparative example of the present invention, as an example in which an aqueous solution of polyetheramine is not applied after spinning, oil agent A
In the case where only the non-aqueous oil agent of B and B and the oil agent C of Table 3 were used, and in the case where only polyetheramine was applied, the yarn was similarly collected and evaluated.
【0040】[0040]
【表3】 [Table 3]
【0041】これらの糸を採取する各工程において、油
剤の優劣を判断するため、紡糸ボビンの解舒張力、繊維
間摩擦力、紡糸ボビンの巻形状を評価した結果を表4、
表5に示す。In each step of collecting these yarns, the evaluation results of the unwinding tension of the spinning bobbin, the frictional force between the fibers, and the winding shape of the spinning bobbin are shown in Table 4 in order to judge the superiority of the oil agent.
It is shown in Table 5.
【0042】[0042]
【表4】 [Table 4]
【0043】ポリエーテルアミンのみ付与した比較例
は、糸の平滑性が悪いため巻き返し工程での糸道ガイド
類との摩擦抵抗力が大きく、糸切れが多発した。本発明
の糸は膠着防止性も優れ平滑性も適度であるため後次工
程の操業は極めて順調であった。In the comparative example to which only polyetheramine was applied, since the smoothness of the yarn was poor, the frictional resistance with the yarn guides in the rewinding process was large, and the yarn was frequently broken. Since the yarn of the present invention has excellent anti-sticking properties and moderate smoothness, the operation in the subsequent step was extremely smooth.
【0044】[0044]
【表5】 [Table 5]
【0045】ポリエーテルアミンを使用しない比較油剤
のうち、イソシアナート基を失活させる活性水素を持っ
ていない油剤A及びBは経時膠着上昇が大きく、巻き返
しでの糸の解舒性が悪いため糸切れが多く、紡糸工程以
降の操業性が不良であった。また、油剤Cは優れた膠着
防止性を示すものの、繊維間摩擦力が低過ぎるため紡糸
巻取り時にボビンの崩れが発生し、所定時間の巻き取り
が出来ない状態であった。Among the comparative oils not using polyetheramine, oils A and B having no active hydrogen to deactivate the isocyanate group show a large increase in sticking over time and a poor unwinding property of the yarn upon rewinding. There were many cuts and the operability after the spinning process was poor. Although the oil agent C exhibited excellent anti-sticking properties, the frictional force between the fibers was too low, so that the bobbin collapsed during the winding of the spinning yarn, and the winding could not be performed for a predetermined time.
【0046】以上、本発明のポリエーテルアミンを使用
することで、当化合物を使用しない場合に比べ紡糸ボビ
ンの巻崩れがなく、かつ主目的の優れた膠着防止性が得
られた。As described above, the use of the polyetheramine of the present invention did not cause collapse of the spinning bobbin as compared with the case where the present compound was not used, and the excellent anti-sticking property of the main purpose was obtained.
【0047】[0047]
【発明の効果】本発明のウレタン弾性繊維の製造方法に
よれば、紡糸ボビン膠着が少なく、かつ紡糸ボビンの巻
形状も優れているため、後次工程での解舒性不良並びに
巻形状不良による糸切れが少なく、極めて操業性が良い
高品質のウレタン弾性繊維が得られる。According to the method for producing a urethane elastic fiber of the present invention, since the spinning bobbin has less sticking and the winding shape of the spinning bobbin is excellent, the unwinding property and the winding shape in the subsequent process are poor. A high-quality urethane elastic fiber with few yarn breaks and excellent operability can be obtained.
【図1】解舒張力の測定方法を表す図である。FIG. 1 is a diagram illustrating a method of measuring an unwinding tension.
【図2】繊維間摩擦力の測定法を表す図である。FIG. 2 is a diagram illustrating a method of measuring a friction force between fibers.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) D01F 11/00 - 11/16 D01F 6/70 D01F 9/94 D06M 13/00 - 15/72 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) D01F 11/00-11/16 D01F 6/70 D01F 9/94 D06M 13/00-15/72
Claims (1)
し、口金より出た糸が固化した後で一般式 【化1】 で示されるポリエーテルアミンを含有してなる水系エマ
ルジョンを付与し、引き続き非水系油剤を付与した後、
巻き取る事を特徴とするウレタン弾性繊維の製造方法。In the case of melt-spinning a urethane polymer, a general formula is obtained after a thread coming out of a die is solidified. After giving an aqueous emulsion containing a polyetheramine represented by, and subsequently applying a non-aqueous oil agent,
A method for producing urethane elastic fiber, characterized by winding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28144494A JP3162926B2 (en) | 1994-10-19 | 1994-10-19 | Method for producing urethane elastic fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28144494A JP3162926B2 (en) | 1994-10-19 | 1994-10-19 | Method for producing urethane elastic fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08120527A JPH08120527A (en) | 1996-05-14 |
JP3162926B2 true JP3162926B2 (en) | 2001-05-08 |
Family
ID=17639266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28144494A Expired - Fee Related JP3162926B2 (en) | 1994-10-19 | 1994-10-19 | Method for producing urethane elastic fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3162926B2 (en) |
-
1994
- 1994-10-19 JP JP28144494A patent/JP3162926B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08120527A (en) | 1996-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4595775B2 (en) | Polyurethane elastic fiber and method for producing the same | |
JP4014228B2 (en) | Spandex having low viscosity and process for producing the same | |
JP3162926B2 (en) | Method for producing urethane elastic fiber | |
JP2935604B2 (en) | Oil agent for urethane elastic yarn | |
CN101068957B (en) | Method to improve release characteristics of elastic polyolefin fibers | |
JP3336146B2 (en) | Method for producing urethane elastic fiber | |
JP2788097B2 (en) | Oil agent for polyurethane elastic yarn | |
JP2902719B2 (en) | Method for producing polyurethane elastic yarn | |
JPH07150421A (en) | Production of polyurethane elastic fiber | |
JPH10158938A (en) | Method for applying oil to elastic fiber | |
JPS6197471A (en) | Production of polyurethane elastic fiber | |
JP2960224B2 (en) | Oil agent for polyurethane fiber | |
JP3909240B2 (en) | Elastic fiber treatment agent and elastic fiber | |
JPH07166424A (en) | Polyurethane elastic fiber having excellent reeling property | |
JPH09188974A (en) | Lubricant for polyurethane elastic fiber | |
JPH07165868A (en) | Preparation of polyurethane resin | |
JP2948950B2 (en) | Oil agent for elastic fiber | |
JPS63175172A (en) | Production of polyurethane elastic fiber | |
JP4223356B2 (en) | Elastic fiber treatment agent and elastic fiber | |
JP3280790B2 (en) | Oil agent for polyurethane elastic yarn | |
JP4463031B2 (en) | Elastic fiber treatment agent and elastic fiber | |
JP4443313B2 (en) | Elastic fiber treatment agent and elastic fiber | |
JPH0641873A (en) | Lubricant for polyurethane fiber | |
JPH07224138A (en) | Production of polyurethane resin | |
JP2001214332A (en) | Polyurethane elastic fiber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |