JPS6152273B2 - - Google Patents

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Publication number
JPS6152273B2
JPS6152273B2 JP2111780A JP2111780A JPS6152273B2 JP S6152273 B2 JPS6152273 B2 JP S6152273B2 JP 2111780 A JP2111780 A JP 2111780A JP 2111780 A JP2111780 A JP 2111780A JP S6152273 B2 JPS6152273 B2 JP S6152273B2
Authority
JP
Japan
Prior art keywords
resin
yarn
thread
resin dispersion
weight
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
Application number
JP2111780A
Other languages
Japanese (ja)
Other versions
JPS56118918A (en
Inventor
Toshiro Inoe
Kazuo Takahashi
Sei Yoshimoto
Etsuo Yoshikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP2111780A priority Critical patent/JPS56118918A/en
Publication of JPS56118918A publication Critical patent/JPS56118918A/en
Publication of JPS6152273B2 publication Critical patent/JPS6152273B2/ja
Granted legal-status Critical Current

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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、ミシン糸の製造方法、詳しくは高速
回転本縫ミシン用に好適なフイラメント糸よりな
るミシン糸の製造方法に関する。 従来、高速回転本縫ミシン用ミシン糸としてマ
ルチフイラメント糸に150〜350回/mの左撚を施
した後、柔軟平滑剤或いは帯電防止剤を含浸し、
次いで樹脂加工を行ない熱固定したものが提案さ
れている。しかしこのミシン糸は、糸の表面のみ
に樹脂被膜を形成せしめたものであるから、縫製
中に針、糸ガイド等ミシンの糸繰出部から針先に
到る糸との接触部において、摩擦によりミシン糸
表層の樹脂皮膜が一度破壊されると糸を構成する
フイラメント束は裸同然の形で摩擦を受けること
になり、単糸切れに起因する毛羽等が生起し易く
摩擦に対する抵抗性が極めて弱いものである。そ
して摩擦による糸切れは当然のことではあるがミ
シンが高速化しその回転数が大きくなればなる程
頻発する。更に糸表面を破覆する樹脂層が平滑性
に欠け、これがため縫製時計との摩擦抵抗が大き
く糸切れの誘発、樹脂の剥落等が起こる。更にま
た樹脂被覆層を厚くすると糸が粗硬化し、縫合部
縫目の裏にループが多発する他、縫合部が柔軟性
に欠ける。 本発明者らは、高速回転本縫ミシン用に適した
樹脂加工ミシン糸を得んとして鋭意研究を重ねた
結果、特定の粘度係数を有する高濃度樹脂分散液
をマルチフイラメント糸に付与することにより上
記樹脂加工ミシン糸が得られること、さらに付与
にあたつて該樹脂分散液を連続定量的に吐出付与
すれば一段と良好なミシン糸が得られることを見
出し、本発明を完成したものであつて、その目的
とするところは、高速回転ミシンに適用しても容
易且つ高能率で縫製し得ると共に広範な素材・商
品の縫製に適用可能なミシン糸及びその工業的有
利な製造方法を提供するにある。 マルチフイラメント糸に、加硫剤を含有する合
成ゴム系ラテツクスからなり、且つ樹脂濃度が15
重量%以上で20℃における粘度が15cp以下であ
る樹脂分散液を付与後固着せしめることを特徴と
するミシン糸の製造方法にある。 本発明において使用される樹脂分散液は、15重
量%以上の高い樹脂濃度でありながら20℃におい
て15cp以下の低粘度を有する分散液である。か
かる樹脂分散液を糸条に付与する場合、樹脂分散
液の粘度が高過ぎると糸条内部にへの樹脂浸透が
不良となり、表面のみに樹脂が付着していわゆる
表面被覆の形になり、糸が粗硬になつたり表面が
粗雑になつたりする。また分散液の樹脂濃度を低
下せしめて粘度を低下した場合、被膜形成に時間
がかかり、糸条の上で分散液が移動して斑付きに
なる。そこで糸条上での樹脂の皮膜形成を促進す
るためには濃度が最低15重量%は必要であり、こ
れ未満の場合は点接着になり易い。粘度について
は、20℃において15cp以下の場合樹脂が糸条内
部へ充分に浸透し表面樹脂量と内部の樹脂量とが
適度にバランスし、縫製に最適となる。 このような樹脂分散液としては、合成ゴム系ラ
テツクス、アクリル糸樹脂エマルジヨン、酢酸ビ
ニル樹脂エマルジヨン、塩化ビニル樹脂エマルジ
ヨンの1種または2種以上の混合物等が挙げられ
る。このうち樹脂が合成ゴム系ラテツクスの場
合、加硫剤を配合することも可能で、これにより
一段と樹脂加工の効果が増加する。また、全樹脂
濃度が15重量%以上で20℃における粘度が15cp
以下という条件に適合すれば水溶性樹脂を併用す
ることも可能である。 樹脂分散液の種類は、マルチフイラメント糸を
構成する素材により適宜選定するのが好ましく、
例えばマルチフイラメント糸がポリアミドまたは
ポリエステルからなる場合には、合成ゴム系ラテ
ツクスが好適で、これに加硫剤を含有せしめたも
のであればより好ましい。かかる合成ゴム系ラテ
ツクスのうちでは、ニトリルゴム、ブタジエンー
スチレンゴム、ブタジエンーメチルメタアクリレ
ートゴム及びこれらのカルボン酸変性品のラテツ
クスが好ましく、特にニトリルゴム、なかでもニ
トリルゴムのカルボン酸変性品のラテツクスが好
適である。尚、ニトリルゴムのカルボン酸変性品
のラテツクスを主成分として用いる場合、加硫剤
としては硫黄、亜鉛華等の金属酸化物、アルミン
酸ソーダ、メラミン樹脂等の熱硬化性樹脂等が使
用可能であるが、加硫時間、作業性の観点から亜
鉛華、メラミン樹脂が好ましく、特にメラミン樹
脂が好適である。 また、以上のような樹脂のマルチフイラメント
糸に対する付着量は樹脂の性状により一概にはい
えないが樹脂加工後糸の柔軟性を損わないために
は必要最少限度に止めるのがよく、マルチフイラ
メント糸重量に対し10重量%以下、好ましくは2
〜8重量%が適量である。 本発明においては、前記樹脂加工と併せ柔軟平
滑剤、帯電防止剤等の通常使用される加工剤を含
有する油剤処理を施すのもよい。 かかる油剤中の柔軟平滑剤、帯電防止剤として
は公知のものが適宜選定使用できる。それらの一
例を示すと、柔軟平滑剤としてはシリコン乳化
物、鉱物油乳化物、脂肪酸エステル乳化物、ポリ
エチレンクリコール型非イオン界面活性剤、多価
アルコール型非イオン界面活性剤、カチオン界面
活性剤およびこれらの1種またはそれ以上の混合
物等、帯電防止剤としては、スルホン酸型、硫酸
エステル型およびリン酸エステル型、アニオン界
面活性剤、カチオン界面活性剤、両性界面活性剤
等があげられる。 これらの油剤は、前記樹脂分散液に混合使用し
ても良いし、また染色後樹脂加工前または後の糸
に付与せしめても良い。樹脂分散液との混合使用
の場合、油剤は樹脂の20〜30重量%程度が好適
で、20重量%未満では油剤処理を施した効果が少
なく、30重量%を越えると前記樹脂加工によるモ
ノフイラメント同志の接着が阻害されることもあ
る。この場合混合によつて分散液の粘度が15cp
(20℃において)を越えないものを選択する必要
がある。染色後樹脂加工前の糸に油剤を付与する
場合、油剤付着量は、糸重量の0.5〜2重量%が
好ましい。0.5重量%未満であると油剤の効果が
少なく、2重量%を上過ると接着性が阻害される
こともある。樹脂加工後に油剤処理する場合は常
法に従えばよい。 本発明において、樹脂分散液をマルチフイラメ
ント糸に付与する方法は、特に制限されるもので
はないが、スリツトまたは細孔を備えた糸ガイド
から樹脂分散液を連続定量的に吐出して走行フイ
ラメント糸に付与するのが、マルチフイラメント
糸に容易且つ均一に一定量の樹脂を付与でき、ま
た少量の樹脂でも極めて均一な樹脂膜を形成する
ことができるので好ましい。 これ以外の従来からよく使われている方法でも
本発明に使用できるが、例えば浸漬法では15重量
%以上の高濃度液を用いた場合、樹脂付着量を均
一にコントロールするのが比較的困難で、付着量
過多となる傾向にあり、マルチフイラメント糸が
粗硬になることがあつて好ましくないし、またキ
スローラーで樹脂分散液を付与する場合は、樹脂
液の濃度変化を起こし易く、付着斑が発生した
り、極端な場合にはキスローラー上やパス表面で
樹脂皮膜を形成してしまうこともあつて相当の注
意を要する。 前記した本発明に好適な方法である樹脂分散液
をスリツトまたは細孔を備えた糸ガイドから連続
定量的に吐出して走行マルチフイラメント糸に付
与するという方法によれば油剤処理を併しても糸
からの油剤脱落等による樹脂液汚染およびそれに
起因する樹脂物性の変化がなく、更には浸漬法と
比較して樹脂の廃棄という無駄がなく省資源公害
防止にも役立つ。 尚、前記スリツトまたは細孔を有する糸ガイド
については、何ら制約を受けないが、スリツトや
細孔の径はマルチフイラメント糸の径よりやや大
きいものが適当である。 また樹脂分散液の搬送法は、流脈や吐出量変化
を起こさないものであれば特に制限されない。 次に本発明においては、マルチフイラメント糸
に樹脂分散液を前記の方法にて付与した後、樹脂
をマルチフイラメント糸に固着せしめるのである
が、一般には加熱して固着せしめるのがよく、こ
の場合には同時にフイラメント糸を熱セツトする
こともできる。その場合、樹脂分散液付与後乾燥
し、ポピンに巻き取り、熱セツトする等通常の方
法で行なえばよく、また、樹脂液付与後、乾燥と
熱セツトを連続且つ同時に行なうことも可能であ
る。熱セツト温度は使用せる合成繊維の軟化温度
より低い温度で短時間処理することが必要であ
る。必要に応じ熱セツト後さらに前記したように
油剤処理、例えば平滑剤を付与することもある。
この場合平滑剤は糸条表面を被覆している樹脂の
性状により、ストレートタイプのミシン糸用平滑
剤とエマルジヨンタイプのものを使い分けるのが
よい。 一般には、どちらでも使用可能であるが、水溶
性樹脂を混合した場合はストレートタイプが適し
ている。このような熱セツト後の平滑剤付与によ
り一段と縫製性が向上する。 本発明を適用し得るマルチフイラメント糸は、
特に制限されるものではないが、実用上ポリアミ
ド及びポリエステルからなるものが好ましい。 またマルチフイラメント糸の形状は、無撚糸で
あつても、片撚糸であつても、さらには2子〜6
子よりなる有撚であつても良いが、片撚糸の場合
は撚数が350回/m以下が好しい。該撚数が350
回/mを越える場合はスナールが発生したり縫製
上支障をきたすことがあるので注意を要する。施
撚方向については、左右いずれでも良いが、全回
転方式本縫ミシン糸用は片撚糸の場合左片撚が好
ましく、2子〜6子ミシン糸の場合は上撚が左撚
となるように施撚するのが好ましい。 本発明により得られたミシン糸は、表面が平滑
でありたとえば縫製中に表面被覆が破壊されても
内部接着により糸条の集束性は保持され毛羽糸切
れを生じない。このため高速回転ミシン用として
好適であり、また一般衣料はもちろんのこと、あ
らゆる縫製に使用可能であり、特に重布、帆布な
どの産業資材分野の縫製に適する。更に表面被覆
型でないため糸が柔軟である。 以下実施例を挙げて本発明を更に説明する。 実施例 1 500デニール/96フイラメントのポリエチレン
テレフタレートマルチフイラメント糸に300回/
mの左撚りを施した後、通常の方法にてチーズ染
色を行ない、しかる後、直径0.8mmの細孔を有す
るセラミツク製ガイドに接触させつつ糸速
200m/minで走行させた。セラミツク製ガイド
細孔からは、シリコン乳化物を樹脂固形分に対し
シリコン純分として20重量%となるよう配合した
下記各種樹脂分散液を樹脂固形分で糸の重量に対
し5重量%となるよう連続吐出させ上記マルチフ
イラメントヤーンに付着せしめた。該セラミツク
ガイド通過後の糸は190℃のホツトローラにて乾
燥固着及び熱セツトを施した。 縫製性は、ポリエステル/綿の混紡率=65/35
40番ブロードを4枚重ねしたものを本縫ミシンに
よつて5000rpmの回転数にて連続縫製し、10m以
上連続縫製可能或いは縫目均斉なものを○、5〜
10mのものを△、5m以下のものを×として評価
した。 結果を次表に示す。
The present invention relates to a method for manufacturing sewing thread, and more particularly, to a method for manufacturing sewing thread made of filament thread suitable for high-speed rotation lockstitch sewing machines. Conventionally, multifilament thread used as sewing thread for high-speed rotating lockstitch sewing machines is left-handed twisted at 150 to 350 turns/m, and then impregnated with a soft smoothing agent or an antistatic agent.
It has been proposed that the material is then processed with resin and heat-set. However, since this sewing thread has a resin coating formed only on the surface of the thread, friction occurs during sewing at the parts that come in contact with the thread from the thread feeder of the sewing machine to the needle tip, such as the needle and thread guide. Once the resin film on the surface of the sewing thread is destroyed, the filament bundle that makes up the thread will be subjected to friction as if it were naked, and fuzz, etc. due to single thread breakage will easily occur, and the resistance to friction will be extremely weak. It is something. It goes without saying that thread breakage due to friction occurs more frequently as the speed of the sewing machine increases and its rotational speed increases. Furthermore, the resin layer that covers the thread surface lacks smoothness, which results in large frictional resistance against the sewing watch, leading to thread breakage and peeling of the resin. Furthermore, if the resin coating layer is made thicker, the thread will become coarsely hardened, resulting in frequent loops on the back side of the seam, and the seam will lack flexibility. As a result of extensive research in an attempt to obtain a resin-treated sewing thread suitable for high-speed rotation lockstitch sewing machines, the inventors of the present invention discovered that by applying a highly concentrated resin dispersion having a specific viscosity coefficient to a multifilament thread. The present invention has been completed by discovering that the above-mentioned resin-treated sewing thread can be obtained and that even better sewing thread can be obtained by continuously and quantitatively discharging the resin dispersion during application. The purpose is to provide a sewing thread that can be easily and efficiently sewn even when applied to a high-speed rotating sewing machine, and can be applied to sewing a wide range of materials and products, and an industrially advantageous manufacturing method thereof. be. Multifilament yarn is made of synthetic rubber latex containing a vulcanizing agent and has a resin concentration of 15
A method for producing sewing thread is provided, which comprises applying and fixing a resin dispersion having a viscosity of 15 cp or less at 20° C. in weight percent or more. The resin dispersion used in the present invention is a dispersion having a high resin concentration of 15% by weight or more and a low viscosity of 15 cp or less at 20°C. When applying such a resin dispersion to the yarn, if the viscosity of the resin dispersion is too high, the resin will not penetrate into the yarn, and the resin will adhere only to the surface, resulting in a so-called surface coating. becomes rough and hard, or the surface becomes rough. Further, when the resin concentration of the dispersion liquid is lowered to lower the viscosity, it takes time to form a film, and the dispersion liquid moves on the threads, resulting in unevenness. Therefore, in order to promote the formation of a resin film on the yarn, a concentration of at least 15% by weight is required, and if it is less than this, spot adhesion is likely to occur. Regarding the viscosity, if the viscosity is 15 cp or less at 20°C, the resin will sufficiently penetrate into the inside of the thread, and the amount of surface resin and the amount of internal resin will be appropriately balanced, making it optimal for sewing. Examples of such a resin dispersion include one or a mixture of two or more of synthetic rubber latex, acrylic thread resin emulsion, vinyl acetate resin emulsion, and vinyl chloride resin emulsion. When the resin is a synthetic rubber latex, a vulcanizing agent can be added, which further increases the effect of resin processing. In addition, when the total resin concentration is 15% by weight or more, the viscosity at 20℃ is 15cp.
It is also possible to use a water-soluble resin in combination if the following conditions are met. The type of resin dispersion liquid is preferably selected appropriately depending on the material constituting the multifilament yarn.
For example, when the multifilament yarn is made of polyamide or polyester, synthetic rubber latex is suitable, and it is more preferable that it contains a vulcanizing agent. Among such synthetic rubber latexes, nitrile rubber, butadiene-styrene rubber, butadiene-methyl methacrylate rubber, and carboxylic acid-modified latexes of these rubbers are preferred, particularly nitrile rubber, and in particular, carboxylic acid-modified latexes of nitrile rubber. is suitable. In addition, when using latex of a carboxylic acid-modified product of nitrile rubber as the main component, sulfur, metal oxides such as zinc white, thermosetting resins such as sodium aluminate, and melamine resin can be used as the vulcanizing agent. However, from the viewpoint of vulcanization time and workability, zinc white and melamine resin are preferred, and melamine resin is particularly preferred. In addition, although the amount of resin attached to the multifilament yarn cannot be determined unconditionally depending on the properties of the resin, it is best to keep it to the minimum necessary amount in order not to damage the flexibility of the yarn after resin processing. 10% by weight or less based on the yarn weight, preferably 2
~8% by weight is a suitable amount. In the present invention, in addition to the resin treatment, an oil treatment containing a commonly used treatment agent such as a softening and smoothing agent and an antistatic agent may also be applied. As the softening and smoothing agents and antistatic agents in such oils, known ones can be appropriately selected and used. Examples of softening and smoothing agents include silicone emulsions, mineral oil emulsions, fatty acid ester emulsions, polyethylene glycol type nonionic surfactants, polyhydric alcohol type nonionic surfactants, and cationic surfactants. Examples of the antistatic agent include sulfonic acid type, sulfuric acid ester type, phosphoric acid ester type, anionic surfactant, cationic surfactant, amphoteric surfactant, etc. and mixtures of one or more of these. These oils may be mixed with the resin dispersion, or may be applied to the yarn after dyeing and before or after resin processing. When used in combination with a resin dispersion, the appropriate amount of oil is about 20 to 30% by weight of the resin; if it is less than 20% by weight, the effect of the oiling treatment will be small, and if it exceeds 30% by weight, the monofilament will be damaged by the resin treatment. Bonding between comrades may be inhibited. In this case, the viscosity of the dispersion is 15 cp due to mixing.
It is necessary to select one that does not exceed (at 20℃). When applying an oil to the yarn after dyeing and before resin processing, the amount of oil applied is preferably 0.5 to 2% by weight of the yarn weight. If it is less than 0.5% by weight, the effect of the oil agent will be small, and if it exceeds 2% by weight, adhesiveness may be impaired. When treating with oil after resin processing, conventional methods may be followed. In the present invention, the method of applying the resin dispersion to the multifilament yarn is not particularly limited, but the resin dispersion is continuously and quantitatively discharged from a yarn guide provided with slits or pores to form a running filament yarn. It is preferable to apply the resin to the multifilament yarn because a certain amount of resin can be applied easily and uniformly to the multifilament yarn, and an extremely uniform resin film can be formed even with a small amount of resin. Other commonly used methods can also be used in the present invention, but for example, in the immersion method, when using a highly concentrated liquid of 15% by weight or more, it is relatively difficult to uniformly control the amount of resin deposited. This is not preferable as the amount of adhesion tends to be excessive and the multifilament yarn may become rough and hard.Also, when applying the resin dispersion liquid with a kiss roller, the concentration of the resin liquid tends to change and adhesion spots may occur. In extreme cases, a resin film may be formed on the kiss roller or pass surface, so considerable care must be taken. According to the above-mentioned method suitable for the present invention, in which the resin dispersion is continuously and quantitatively discharged from a thread guide provided with slits or pores to apply it to the running multifilament thread, it is possible to apply the resin dispersion to the running multifilament thread even when oil treatment is not required. There is no contamination of the resin liquid due to the dropping of oil from the threads, and there is no change in the physical properties of the resin due to this.Furthermore, compared to the dipping method, there is no waste in disposing of the resin, which is useful for saving resources and preventing pollution. The yarn guide having the slits or pores is not subject to any restrictions, but it is appropriate that the diameter of the slits or pores be slightly larger than the diameter of the multifilament yarn. Further, the method of conveying the resin dispersion liquid is not particularly limited as long as it does not cause flow veins or changes in discharge amount. Next, in the present invention, after applying the resin dispersion liquid to the multifilament yarn using the above-described method, the resin is fixed to the multifilament yarn, but it is generally preferable to heat the resin to fix the resin. It is also possible to heat set the filament yarn at the same time. In that case, the resin dispersion may be applied, then dried, wound up into a poppin, and heat set, etc., by a conventional method, or it is also possible to carry out drying and heat setting continuously and simultaneously after applying the resin dispersion. The heat setting temperature must be lower than the softening temperature of the synthetic fiber used for a short period of time. If necessary, after heat setting, an oil treatment such as a smoothing agent may be applied as described above.
In this case, it is preferable to use either a straight type sewing thread smoothing agent or an emulsion type smoothing agent depending on the properties of the resin coating the yarn surface. Generally, either type can be used, but the straight type is suitable when water-soluble resin is mixed. By applying a smoothing agent after heat setting, the sewing properties are further improved. The multifilament yarn to which the present invention can be applied is
Although not particularly limited, polyamide and polyester are preferred in practical terms. In addition, the shape of the multifilament yarn may be non-twisted yarn, single-twisted yarn, or even 2- to 6-strand yarn.
The yarn may be twisted, but in the case of single-twisted yarn, the number of twists is preferably 350 turns/m or less. The number of twists is 350
If the sewing speed exceeds the number of times/m, care must be taken as snarls may occur or problems may occur during sewing. The twisting direction may be either left or right, but for full-rotation type lockstitch sewing thread, left-handed twisting is preferable for single-twisted yarn, and left-handed twisting is preferred for 2- to 6-strand sewing threads. Preferably, it is twisted. The sewing thread obtained according to the present invention has a smooth surface, and even if the surface coating is destroyed during sewing, the thread convergence is maintained due to internal adhesion and no fluffy thread breakage occurs. For this reason, it is suitable for use in high-speed rotating sewing machines, and can be used not only for general clothing but also for sewing all kinds of clothing, and is particularly suitable for sewing heavy fabrics, canvas, and other industrial materials. Furthermore, since it is not a surface-coated type, the thread is flexible. The present invention will be further explained below with reference to Examples. Example 1 500 denier/96 filament polyethylene terephthalate multifilament yarn 300 times/
After applying the left twist of m, cheese dyeing is carried out in the usual way, and then the yarn speed is increased while contacting with a ceramic guide having pores of 0.8 mm in diameter.
It was run at 200m/min. Through the ceramic guide pores, the following various resin dispersions containing silicone emulsions are blended so that the pure silicon content is 20% by weight based on the resin solid content, and the resin solid content is 5% by weight based on the weight of the thread. It was continuously discharged to adhere to the multifilament yarn. After passing through the ceramic guide, the yarn was dried, fixed and heat set using a hot roller at 190°C. Sewability is polyester/cotton blend ratio = 65/35
Four layers of No. 40 broadcloth are sewn continuously at a rotation speed of 5000 rpm using a lockstitch sewing machine, and those that can be sewn continuously for more than 10 meters or have uniform seams are ○, 5~
Those with a length of 10 m were evaluated as △, and those with a length of 5 m or less were evaluated as ×. The results are shown in the table below.

【表】 この結果から、本発明品が比較品に比べ縫製性
及び縫目の均斉度にすぐれていることがわかる。
また、顕微鏡観察の結果も本発明品は樹脂が糸内
部まで浸透しており、各モノフイラメント間は面
接着されていたが、実験No.1,2では樹脂の広
がりが不充分で点接着の域を出ず、実験No.7,
8では樹脂の内部浸透が不足で、特に実験No.8
では表面がなめらかでなかつた。 実施例 2 840デニール/96フイラメントのナイロン6糸
を用いて実施例1と同じ処理を施しその結果を観
察したが、実施例1の表に記載とほぼ同様の結果
を得た。 実施例 3 500デニール/96フイラメントのポリエチレン
テレフタレート糸に300回/mの左撚りを施した
後、実施例1に使用したものと同一の樹脂分散液
を用い。浸漬法及びキスローラー法でフイラメン
ト糸に付与した。 その結果、浸漬法では付着量がすべて5重量%
を超え、付着量のコントロールが比較的困難で、
特に樹脂濃度が15重量%以上のものは付着量過多
のためか糸が粗硬になりがちで、また縫製時の糊
落が一部であつた。 一方、キスローラー法では一部付着斑が発生
し、そのものは縫製性が良くなかつた。また樹脂
濃度15重量%を越えるとローラー上及びパス表面
で樹脂が皮膜を形成することがあり、その場合に
は連続運転が困難になつた。
[Table] From the results, it can be seen that the product of the present invention is superior in sewing performance and seam uniformity compared to the comparative product.
In addition, as a result of microscopic observation, the resin penetrated into the inside of the yarn in the product of the present invention, and surface adhesion was achieved between each monofilament, but in Experiments No. 1 and 2, the resin did not spread sufficiently and there was no point adhesion. Experiment No. 7,
In experiment No. 8, the internal penetration of the resin was insufficient, especially in experiment No. 8.
However, the surface was not smooth. Example 2 A nylon 6 yarn of 840 denier/96 filament was subjected to the same treatment as in Example 1 and the results were observed, and almost the same results as described in the table of Example 1 were obtained. Example 3 After subjecting a 500 denier/96 filament polyethylene terephthalate yarn to a left twist of 300 turns/m, the same resin dispersion as used in Example 1 was used. It was applied to the filament yarn by dipping method and kiss roller method. As a result, the amount of adhesion was 5% by weight in all cases using the immersion method.
It is relatively difficult to control the adhesion amount,
In particular, when the resin concentration was 15% by weight or more, the threads tended to be coarse and hard, probably due to the excessive amount of adhesion, and some of the starch fell off during sewing. On the other hand, when using the kiss roller method, some adhesion spots occurred and the sewing properties were not good. Further, if the resin concentration exceeds 15% by weight, the resin may form a film on the roller and the path surface, in which case continuous operation becomes difficult.

Claims (1)

【特許請求の範囲】 1 マルチフイラメント糸に、加硫剤を含有する
合成ゴム系ラテツクスからなり、且つ樹脂濃度が
15重量%以上で20℃における粘度が15cp以下で
ある樹脂分散液を付与後固着せしめることを特徴
とするミシン糸の製造方法。 2 樹脂分散液を細孔またはスリツトを備えた糸
ガイドから連続定量的に吐出して付与する特許請
求の範囲第1項記載の方法。 3 樹脂分散液を付与後加熱して固着せしめる特
許請求の範囲1項記載の方法。 4 マルチフイラメント糸がポリアミドまたはポ
リエステルからなる特許請求の範囲第1項記載の
方法。 5 合成ゴム系ラテツクスがニトリルゴム、ブタ
ジエーンスチレンゴム、ブタジエーンメチルメタ
アクリレートゴムまたはそれらのカルボン酸変性
品のラテツクスである特許請求の範囲1項記載の
方法。 6 樹脂分散液をマルチフイラメント糸重量に対
し樹脂固形分として高々10重量%付与する特許請
求の範囲第1項記載の方法。
[Scope of Claims] 1 Multifilament yarn is made of synthetic rubber latex containing a vulcanizing agent, and the resin concentration is
A method for producing sewing thread, which comprises applying and fixing a resin dispersion having a viscosity of 15% by weight or more and a viscosity of 15cp or less at 20°C. 2. The method according to claim 1, wherein the resin dispersion is applied by continuously and quantitatively discharging the resin dispersion from a thread guide provided with pores or slits. 3. The method according to claim 1, wherein the resin dispersion is applied and then heated to fix the resin dispersion. 4. The method according to claim 1, wherein the multifilament yarn is made of polyamide or polyester. 5. The method according to claim 1, wherein the synthetic rubber latex is a latex of nitrile rubber, butadiene styrene rubber, butadiene methyl methacrylate rubber, or a carboxylic acid modified product thereof. 6. The method according to claim 1, wherein the resin dispersion is applied in an amount of at most 10% by weight as a resin solid content based on the weight of the multifilament yarn.
JP2111780A 1980-02-21 1980-02-21 Production of sewing machine yarn Granted JPS56118918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2111780A JPS56118918A (en) 1980-02-21 1980-02-21 Production of sewing machine yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2111780A JPS56118918A (en) 1980-02-21 1980-02-21 Production of sewing machine yarn

Publications (2)

Publication Number Publication Date
JPS56118918A JPS56118918A (en) 1981-09-18
JPS6152273B2 true JPS6152273B2 (en) 1986-11-12

Family

ID=12045928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2111780A Granted JPS56118918A (en) 1980-02-21 1980-02-21 Production of sewing machine yarn

Country Status (1)

Country Link
JP (1) JPS56118918A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180767U (en) * 1981-05-12 1982-11-16
JPS61150872U (en) * 1985-03-06 1986-09-18
JPS6221083U (en) * 1985-07-23 1987-02-07
JPH09136368A (en) * 1995-11-14 1997-05-27 Kajima Corp Connecting method for composite sheet

Also Published As

Publication number Publication date
JPS56118918A (en) 1981-09-18

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