JPH0123589B2 - - Google Patents
Info
- Publication number
- JPH0123589B2 JPH0123589B2 JP20403481A JP20403481A JPH0123589B2 JP H0123589 B2 JPH0123589 B2 JP H0123589B2 JP 20403481 A JP20403481 A JP 20403481A JP 20403481 A JP20403481 A JP 20403481A JP H0123589 B2 JPH0123589 B2 JP H0123589B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- diorganopolysiloxane
- viscosity
- smoothness
- thread
- 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
Links
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 11
- 210000004177 elastic tissue Anatomy 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 31
- 238000009940 knitting Methods 0.000 description 9
- -1 fatty acid esters Chemical class 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 235000013351 cheese Nutrition 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000000181 anti-adherent effect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
【発明の詳細な説明】
本発明はポリウレタン弾性繊維用油剤に関する
ものであり、更に詳しくは弾性糸同士の粘着性が
小さく解舒性にすぐれ、しかも摩擦抵抗が弾性糸
の走行速度に無関係に常に小さいポリウレタン弾
性繊維を得るための油剤に関するものである。
ポリウレタン弾性繊維は他の衣料用繊維に比べ
てヤング率が低く、非常に伸びやすいので、整
経、編立等の後加工工程におけるガイド等との摩
擦抵抗は特に小さくしなければならない。また糸
同士の粘着性が大きいので粘着防止性を有する油
剤を付与しなければチーズ上で糸が互いに粘着し
て解舒性が悪くなり、後加工工程で糸切れが多発
する欠点を有している。したがつて、糸の摩擦抵
抗を低下させ(いわゆる平滑性を良くし)、更に
解舒性を向上させることが重要であり、そのため
にポリウレタン弾性繊維は他の合成繊維に比べる
とかなり多量の油剤を紡糸工程で付着させるのが
常である。特に近年、ポリウレタン弾性繊維は
400〜800m/分という大きな速度で使用されるこ
とから、高速走行時における摩擦抵抗を特に小さ
くすることが要望されている。ところが油剤付着
率が高いと、糸が接触する編機のガイドや編針等
に油剤やスカム(油剤成分によつて抽出された糸
中のオリゴマーや油剤中の固体または高粘度成分
が固体またはペースト状になつて分離したもの)
が多量に付着するから、製品汚損や風綿吸着によ
る目詰り等を生じる欠点があり、たびたび掃除す
る必要が生じる。またチーズやビームから油剤の
しみ出しを起こして、器具、機械等を汚染する欠
点も有している。
従来、糸の粘着性と摩擦抵抗を小さくするた
め、平滑剤としてタルクを用いたり、鉱物油を主
体とし、これに種々の高級脂肪酸エステル、高級
アルコールのエチレンオキシド付加物、高級脂肪
酸のエチレンオキシド付加物、金属石けん、変性
シリコーン等を配合した配合油剤を用いることが
試みられている。しかし、これらの方法も充分な
粘着防止効果が得られなかつたり、平滑剤が紡糸
機、整経機、編機等に重大な摩耗を生じさせた
り、整経、編立の工程でスカムを発生し、糸切
れ、製品品位低下等を惹起する等の欠点を有して
いる。
本発明者等はこのような現状にかんがみ、少量
の油剤付着率ですぐれた効果を発揮するポリウレ
タン弾性繊維用油剤を開発するべく鋭意研究の結
果、本発明に到達した。すなわち、本発明は25℃
における粘度が100センチストークス以下のジオ
ルガノポリシロキサン(A)および5000〜15000セン
チストークスのジオルガノポリシロキサン(B)を必
須成分として含有し、両成分の配合割合が重量比
で(A):(B)=85〜95:15〜5であり、かつ両成分の
合計配合量が全油剤成分に対し40重量%以上であ
ることを特徴とするポリウレタン弾性繊維用油剤
である。
以下、本発明の油剤を更に詳細に説明する。本
発明の油剤は主たる有効成分として次の2種のジ
オルガノポリシロキサンを特定割合で含有する。
(A) 粘度(25℃)100センチストークス以下のジ
オルガノポリシロキサン
(B) 粘度(25℃)5000〜15000センチストークス
のジオルガノポリシロキサン
ジオルガノポリシロキサンとしては、通常ジメ
チルポリシロキサンが用いられるが、メチル基の
1部は他のアルキル基、フエニル基、アミノアル
キル基、ビニル基、エポキシ含有基等の1価の有
機基で置換されていてもよい。また末端にヒドロ
キシル基、アルコキシル基等を有するポリシロキ
サンであつてもよい。更にまた、メチル基の少割
合は水素で置き換えられてもよい。
ジオルガノポリシロキサン(A)と(B)との配合割合
は重量比で(A):(B)=85〜95:15〜5である。ジオ
ルガノポリシロキサン(B)の割合が上記範囲を越え
て多くなると油剤の粘度が上昇し、均一付与が困
難となる。また少な過ぎると静摩擦係数が大きく
なり、チーズ表面の糸のぬめり感がなくなると共
に繊維の平滑性が低下する欠点を生じる。本発明
におけるジオルガノポリシロキサン(A)および(B)は
分子量のみ異なり構造的には全く同一または近似
するため両者任意の割合に混合可能なことが大き
な特徴である。すなわち、ジオルガノポリシロキ
サン(A)と通常ポリウレタン繊維用に用いられるポ
リエーテル変性シリコーンとの併用等においては
両者の相溶性が悪く、均一油剤とするために適当
な媒体つまりつなぎ油を必要とする。しかしなが
ら、つなぎ油の多くは有機溶剤であり、繊維中の
オリゴマーを溶出し易いことからスカム発生の原
因となるばかりか、場合により酸化窒素ガスによ
る繊維の着色を助長する欠点を生じる。本願発明
においてはつなぎ油の使用は必要でなく、混合比
率を変えることにより油剤粘度および平滑性を自
由に変えることが可能であり、つなぎ油使用によ
る欠点も解決することができる。
次に本発明の油剤における各有効成分の作用に
ついて説明する。ジオルガノポリシロキサン(A)は
高速での平滑性に特に有効であり、すなわち糸の
走行速度が200m/分以上の高速になつたときに
優れた平滑性(摩擦抵抗が小さい)を示す。この
ものの平滑作用は粘度100センチストークス以下
であれば粘度の大小によつてはあまり変化しな
い。しかし特に好ましくは3〜50センチストーク
スである。
一方、ジオルガノポリシロキサン(B)は糸の高速
走行時での摩擦抵抗は大きくなるが、逆に走行速
度の小さい低速摩擦に対しては優れた効果を有す
る。
これらのジオルガノポリシロキサンは粘度に関
係なく糸中のオリゴマーとは相溶性がなく、また
各種添加剤とも相溶性が小さく、したがつてジオ
ルガノポリシロキサンを高濃度で使用しても後加
工工程におけるスカム発生量は著しく抑制するこ
とができる。
通常、ポリウレタン弾性繊維の後加工工程、た
とえば編立、整経、リワインド等の工程における
糸条の走行速度は1m/分程度の低速の場合から
400m/分以上の高速の場合まであり、極めて多
様である。ところが糸条の平滑性には速度依存性
があり、低速で平滑性が良好な糸が高速でも良好
であるとは限らない。したがつて、ポリウレタン
弾性糸に付着させる油剤としては、低速から高速
までのあらゆる速度における平滑性を向上させる
能力を持つものであることが望まれる。本発明に
おいて用いるジオルガノポリシロキサン(A)は高速
で、一方ジオルガノポリシロキサン(B)は低速で各
各平滑性を向上させる能力を持ち、各々の成分
比、油剤中に占める含有率を適宜変化させること
により、広範な走行速度における摩擦抵抗を低下
させることに成功したものである。
通常油剤の粘度はオイリングに便利でかつ均一
付与し得る値通常50センチストークス以下に調整
するために配合成分の粘度、配合割合を上記範囲
内で適宜調節する。更に粘度調節や付着量調節の
ための稀釈剤や、帯電防止剤等適宜配合すること
もできるが、ジオルガノポリシロキサン(A)と(B)と
の合計量が全油剤に対し通常40重量%以上であ
り、好ましくは50重量%以上である。使用し得る
稀釈剤としては、たとえば鉱物油(好ましくはレ
ツドウツド粘度(25℃)60秒以下)、炭素数12以
上の脂肪族アルコール、炭素数2以上の飽和脂肪
酸と炭素数1以上の飽和脂肪族アルコールとから
得られる炭素数12以上のエステル、炭素数7〜20
の1〜3価の芳香族カルボン酸と炭素数1以上の
飽和脂肪族アルコールのエステル、炭素数12以上
のエーテルまたはポリエーテル(エーテル結合の
数6以下)等が例示される。また、上記脂肪族ア
ルコール、脂肪酸におけるアルキル基の水素原子
を弗素原子で置換したフルオロ化合物を用いるこ
ともできる。更にジオルガノポリシロキサン(B)の
1部としてまたは付加的配合剤の1部としてポリ
エーテル変性シリコーンを配合することもでき
る。
以下、実施例により本発明を説明する。なお、
実施例中の部および%はことわらない限り重量基
準である。また実施例中における解舒性とはチー
ズの最内層の糸を駆動ローラおよび捲取りローラ
ーを用いて安定に捲取るために最小限必要な伸長
の割合である。平滑性(A)はレーダー法によつて測
定した。ただし、摩擦体はクロム梨地メツキした
金属製のものであり、その回転時の表面速度は
0.9m/分である。測定試料にかけた荷重は糸1
本当り0.1gである。平滑性(B)は編針の摩擦面に
対する糸の摩擦係数で評価することができる。測
定は計測器工業社F―Meter R―1182で行ない、
その測定原理は次のとおりである。
即ち、糸を編針に摩擦角αで掛け一方向に糸を
走行させ、この時の編針の通過前後で糸張力を測
定し、これより次式により摩擦係数を求める。な
お、速度はOm/分から500m/分まで変えられ
るものである。
f=1/α(lnt1−lnt2)
t2=入力側の糸張力(g)
t1=出力側の糸張力(g)
α=ラジアンで表わした摩擦角
ln=自然対数
f=摩擦係数
スカムテストは次の方法によつて評価される。
10m/分で解舒され、30m/分まで捲取られてい
る糸にカミソリの刃をあてたとき、カミソリに付
着する白色の粘着性物質の量を肉眼で判定した。
実施例 1
メチレンビス(4―フエニルイソシアネート)
10部と分子量1500のポリテトラメチレングリコー
ル30部とを80℃で60分間反応させてプレポリマー
を得、これをジメチルホルムアミド90部に溶解
し、0℃に保ちながらジメチルホルムアミド30部
に溶解した1,2―プロピレンジアミン1.4部と
反応させた。得られた粘稠重合体溶液(20℃にお
ける粘度1200ポイズ)を孔径0.15mm、孔数30の紡
糸口金を通して250℃に加熱された気流中に紡出
し、形成された糸条を溶媒含有率が1%になつた
ところで機械的仮撚により収束した後、油剤を付
与し、200m/分で捲取つて重量500gのチーズを
得た。
油剤組成を種々変更して得られたポリウレタン
弾性糸とそのチーズについて品質を調べた結果を
第1表に示した。表から明らかな様に、本発明の
油剤を用いた場合は低い油剤付着率でも充分な効
果(優れた解舒性、平滑性)を示し、スカム発生
や油剤浸出もなかつたが、類似組成の油剤による
比較例ではこのようにすべての点で良好な結果を
示すものではなかつた。
【表】DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lubricant for polyurethane elastic fibers.More specifically, the present invention relates to a lubricant for polyurethane elastic fibers. This invention relates to an oil agent for obtaining small polyurethane elastic fibers. Polyurethane elastic fibers have a lower Young's modulus than other clothing fibers and are extremely stretchable, so frictional resistance with guides and the like during post-processing steps such as warping and knitting must be particularly small. In addition, since the threads are highly adhesive, unless an oil agent with anti-adhesive properties is applied, the threads will stick to each other on the cheese, resulting in poor unwinding properties, resulting in frequent thread breakage in the post-processing process. There is. Therefore, it is important to reduce the frictional resistance of the yarn (improve the so-called smoothness) and further improve the unwinding property.For this reason, polyurethane elastic fibers require a considerably larger amount of oil agent than other synthetic fibers. is usually attached during the spinning process. Especially in recent years, polyurethane elastic fibers
Since the vehicle is used at high speeds of 400 to 800 m/min, there is a demand for particularly low frictional resistance during high-speed running. However, when the oil adhesion rate is high, oil and scum (oligomers in the yarn extracted by oil components and solid or high viscosity components in the oil are solid or paste-like) on the guides and knitting needles of the knitting machine that the yarn comes into contact with. (separated)
Since a large amount of lint adheres thereto, there are drawbacks such as staining of the product and clogging due to adsorption of fluff, resulting in the need for frequent cleaning. It also has the disadvantage of causing oil to seep out from the cheese or beam, contaminating equipment, machinery, etc. Conventionally, in order to reduce the stickiness and frictional resistance of threads, talc was used as a smoothing agent, mineral oil was used as the main agent, and various higher fatty acid esters, ethylene oxide adducts of higher alcohols, ethylene oxide adducts of higher fatty acids, Attempts have been made to use compounded oils containing metal soaps, modified silicones, and the like. However, these methods do not provide sufficient anti-adhesive effects, and the smoothing agent causes serious wear on spinning machines, warping machines, knitting machines, etc., and scum is generated during the warping and knitting processes. However, it has drawbacks such as thread breakage and deterioration of product quality. In view of the current situation, the present inventors have conducted extensive research to develop an oil agent for polyurethane elastic fibers that exhibits excellent effects with a small amount of oil adhesion rate, and have finally arrived at the present invention. That is, the present invention operates at 25°C.
Contains diorganopolysiloxane (A) with a viscosity of 100 centistokes or less and diorganopolysiloxane (B) with a viscosity of 5,000 to 15,000 centistokes as essential components, and the blending ratio of both components is (A): ( B)=85-95:15-5, and the total blending amount of both components is 40% by weight or more based on the total oil component. Hereinafter, the oil agent of the present invention will be explained in more detail. The oil agent of the present invention contains the following two types of diorganopolysiloxanes in specific proportions as main active ingredients. (A) Diorganopolysiloxane with a viscosity (25℃) of 100 centistokes or less (B) Diorganopolysiloxane with a viscosity (25℃) of 5,000 to 15,000 centistokes Dimethylpolysiloxane is usually used as the diorganopolysiloxane. A part of the methyl group may be substituted with another monovalent organic group such as an alkyl group, a phenyl group, an aminoalkyl group, a vinyl group, or an epoxy-containing group. It may also be a polysiloxane having a hydroxyl group, an alkoxyl group, etc. at the end. Furthermore, a small proportion of the methyl groups may be replaced by hydrogen. The mixing ratio of diorganopolysiloxane (A) and (B) is (A):(B)=85-95:15-5 by weight. If the proportion of diorganopolysiloxane (B) exceeds the above range, the viscosity of the oil increases and it becomes difficult to apply it uniformly. On the other hand, if it is too small, the coefficient of static friction increases, resulting in the disadvantage that the threads on the surface of the cheese lose their slimy feel and the smoothness of the fibers decreases. Since the diorganopolysiloxanes (A) and (B) in the present invention differ only in molecular weight and are structurally identical or similar, a major feature is that they can be mixed in any ratio. That is, when diorganopolysiloxane (A) is used in combination with polyether-modified silicone, which is normally used for polyurethane fibers, the compatibility between the two is poor, and an appropriate medium, ie, binder oil, is required to form a uniform oil agent. . However, most of the binder oils are organic solvents, which tend to elute oligomers from the fibers, which not only causes scum generation, but also has the drawback of promoting coloration of the fibers due to nitrogen oxide gas in some cases. In the present invention, it is not necessary to use a binder oil, and by changing the mixing ratio, the viscosity and smoothness of the oil can be freely changed, and the drawbacks caused by the use of a binder oil can also be solved. Next, the effects of each active ingredient in the oil of the present invention will be explained. Diorganopolysiloxane (A) is particularly effective for smoothness at high speeds, that is, it exhibits excellent smoothness (low frictional resistance) when the thread travels at high speeds of 200 m/min or higher. The smoothing effect of this material does not change much depending on the viscosity as long as the viscosity is 100 centistokes or less. However, particularly preferred is between 3 and 50 centistokes. On the other hand, diorganopolysiloxane (B) has a large frictional resistance when the thread runs at high speed, but on the contrary, it has an excellent effect against low-speed friction when the thread runs at a low speed. These diorganopolysiloxanes are not compatible with the oligomers in the yarn regardless of their viscosity, and they are also poorly compatible with various additives. The amount of scum produced can be significantly suppressed. Normally, the running speed of the yarn in the post-processing processes of polyurethane elastic fibers, such as knitting, warping, rewinding, etc., is as low as about 1 m/min.
There are cases where the speed is over 400m/min, and there is an extremely wide variety. However, the smoothness of a yarn is speed dependent, and a yarn that is smooth at low speeds does not necessarily have good smoothness at high speeds. Therefore, it is desirable that the oil applied to the polyurethane elastic thread have the ability to improve smoothness at all speeds from low to high speeds. The diorganopolysiloxane (A) used in the present invention has the ability to improve smoothness at high speed, while the diorganopolysiloxane (B) has the ability to improve smoothness at low speed. By changing this, we succeeded in reducing frictional resistance over a wide range of running speeds. In order to adjust the viscosity of the oil to a value that is convenient for oiling and can be uniformly applied, usually 50 centistokes or less, the viscosity and blending ratio of the ingredients are adjusted within the above ranges. Furthermore, diluents and antistatic agents can be added as appropriate to adjust viscosity and adhesion, but the total amount of diorganopolysiloxane (A) and (B) is usually 40% by weight based on the total amount of oil. or more, preferably 50% by weight or more. Examples of diluents that can be used include mineral oil (preferably viscosity (25°C) of 60 seconds or less), aliphatic alcohols having 12 or more carbon atoms, saturated fatty acids having 2 or more carbon atoms, and saturated aliphatic fatty acids having 1 or more carbon atoms. Ester with 12 or more carbon atoms obtained from alcohol, 7-20 carbon atoms
Examples include esters of mono- to trivalent aromatic carboxylic acids and saturated aliphatic alcohols having 1 or more carbon atoms, ethers or polyethers having 12 or more carbon atoms (the number of ether bonds is 6 or less). Furthermore, a fluoro compound in which the hydrogen atom of the alkyl group in the aliphatic alcohol or fatty acid is replaced with a fluorine atom can also be used. It is also possible to incorporate polyether-modified silicones as part of the diorganopolysiloxane (B) or as part of additional ingredients. The present invention will be explained below with reference to Examples. In addition,
Parts and percentages in the examples are by weight unless otherwise specified. Moreover, the unwinding property in the examples is the minimum elongation rate required to stably wind up the threads in the innermost layer of cheese using a drive roller and a winding roller. Smoothness (A) was measured by radar method. However, the friction body is made of chrome-plated metal, and its surface speed during rotation is
It is 0.9m/min. The load applied to the measurement sample is thread 1
The actual weight is 0.1g. Smoothness (B) can be evaluated by the coefficient of friction of the yarn against the friction surface of the knitting needle. The measurement was carried out using Keikiki Kogyo Co., Ltd. F-Meter R-1182.
The measurement principle is as follows. That is, thread is threaded around a knitting needle at a friction angle α, the thread is run in one direction, the thread tension is measured before and after passing through the knitting needle, and the coefficient of friction is calculated from this using the following equation. Note that the speed can be changed from 0m/min to 500m/min. f = 1/α (lnt 1 - lnt 2 ) t 2 = Yarn tension on the input side (g) t 1 = Yarn tension on the output side (g) α = Friction angle in radians ln = Natural logarithm f = Friction coefficient The Scum Test is evaluated by the following method.
When a razor blade was applied to the thread that was being unwound at 10 m/min and wound up to 30 m/min, the amount of white sticky substance adhering to the razor was visually determined. Example 1 Methylenebis(4-phenyl isocyanate)
10 parts of polytetramethylene glycol having a molecular weight of 1500 were reacted at 80°C for 60 minutes to obtain a prepolymer, which was dissolved in 90 parts of dimethylformamide, and then dissolved in 30 parts of dimethylformamide while maintaining the temperature at 0°C. , 1.4 parts of 2-propylene diamine. The obtained viscous polymer solution (viscosity 1200 poise at 20°C) was spun into an air stream heated to 250°C through a spinneret with a pore diameter of 0.15 mm and 30 holes, and the formed thread was After converging by mechanical false twisting when the concentration reached 1%, an oil agent was applied and the cheese was rolled at 200 m/min to obtain cheese weighing 500 g. Table 1 shows the results of examining the quality of polyurethane elastic yarns and cheeses obtained with various oil compositions. As is clear from the table, when the oil of the present invention was used, it showed sufficient effects (excellent unwinding properties and smoothness) even at a low oil adhesion rate, and there was no scum generation or oil leaching. The comparative examples using oil agents did not show good results in all respects. 【table】
Claims (1)
下のジオルガノポリシロキサン(A)および5000〜
15000センチストークスのジオルガノポリシロキ
サン(B)を必須成分として含有し、両成分の配合割
合が重量比で(A):(B)=85〜95:15〜5であり、か
つ両成分の合計配合量が全油剤成分に対し40重量
%以上であることを特徴とするポリウレタン弾性
繊維用油剤。1 Diorganopolysiloxane (A) with a viscosity of 100 centistokes or less at 25°C and 5000 ~
Contains 15,000 centistokes diorganopolysiloxane (B) as an essential component, the weight ratio of both components is (A):(B)=85-95:15-5, and the total of both components An oil agent for polyurethane elastic fibers, characterized in that the blending amount is 40% by weight or more based on the total oil component.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20403481A JPS58104283A (en) | 1981-12-16 | 1981-12-16 | Oil agent for polyurethane elastic fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20403481A JPS58104283A (en) | 1981-12-16 | 1981-12-16 | Oil agent for polyurethane elastic fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58104283A JPS58104283A (en) | 1983-06-21 |
JPH0123589B2 true JPH0123589B2 (en) | 1989-05-08 |
Family
ID=16483651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20403481A Granted JPS58104283A (en) | 1981-12-16 | 1981-12-16 | Oil agent for polyurethane elastic fiber |
Country Status (1)
Country | Link |
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JP (1) | JPS58104283A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003097926A1 (en) * | 2002-05-21 | 2003-11-27 | Asahi Kasei Kabushiki Kaisha | Elastic polyurethane fiber |
-
1981
- 1981-12-16 JP JP20403481A patent/JPS58104283A/en active Granted
Also Published As
Publication number | Publication date |
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JPS58104283A (en) | 1983-06-21 |
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