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JPH0329902B2 - - Google Patents
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JPH0329902B2 - - Google Patents

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Publication number
JPH0329902B2
JPH0329902B2 JP57077145A JP7714582A JPH0329902B2 JP H0329902 B2 JPH0329902 B2 JP H0329902B2 JP 57077145 A JP57077145 A JP 57077145A JP 7714582 A JP7714582 A JP 7714582A JP H0329902 B2 JPH0329902 B2 JP H0329902B2
Authority
JP
Japan
Prior art keywords
sewing
treatment
thread
sewing thread
needle
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 - Lifetime
Application number
JP57077145A
Other languages
Japanese (ja)
Other versions
JPS58197333A (en
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 filed Critical
Priority to JP7714582A priority Critical patent/JPS58197333A/en
Publication of JPS58197333A publication Critical patent/JPS58197333A/en
Publication of JPH0329902B2 publication Critical patent/JPH0329902B2/ja
Granted legal-status Critical Current

Links

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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、近時の高速化、複雑化したミシンに
適用して、又特にワーキングウエア、ジーンズ等
の厚手生地の縫製に適用して、溶断現象を生ずる
ことのない優れたミシン糸を提供するものであ
る。 最近ミシンの性能は格段に向上し、又縫製能率
を高めるためその回転数は一段と速くなつてきて
いる。一方、ワーキングウエア、ジーンズ等は一
段に厚手の生地で構成され、又縫製に際してはこ
れを2〜8重に重ね合せて縫製するため、先述の
高速化と相まつて、縫針と被縫生地との間に摩擦
による発熱が起り、特に縫針には適用するミシン
糸の融点以上の高熱が発生するため縫製中若しく
は運転停止直後に瞬時に縫糸が切断してしまう現
象を生じる。このことは、縫製能率を低下させる
ばかりでなく、仕上り品位にも影響を与え、その
改善が特に望まれるところである。 本発明はかゝる点、従来にない高性能の縫糸を
提供するもので、その特徴とするところは320℃
以上に発熱した縫針に適用したとき、該針熱を
100℃以上降下させることが可能であるようパー
フルオロアルコールのアクリル酸エステルとシリ
コンとの共重合体による第1処理、及び高低両粘
度のジメチルポリシロキサンを配合した処理剤に
よる第2処理を行うことにある。 即ち、特に厚手生地の縫製に際しては、通常縫
糸を使用せず空縫いして運針すると、縫針には
320℃以上の高熱が生じ、例えばΤ/C混ワーキ
ングウエア用生地を4枚重ねして回転数4000回転
のミシンにより運針空縫いすると急激に針温が上
昇し350℃前後に達する。かゝる発熱は一定温度
まで達すると加熱と発熱が平衡状態となり、それ
以上は上昇しなくなる。従来かゝる発熱に対して
耐えることのできる縫糸は全くなく、従つて空冷
装置を設けたり、ミシンの回転数を抑えたり、又
各種油剤を多量に付着させつゝ縫製を行なつたり
していたが、何れも縫糸自体の性能を改善したも
のではなく、本発明はかゝる点従来にない新規な
縫糸を提供するものである。以下その詳細につい
て説明する。 先ず、本発明を構成する素材としては、合成繊
維とりわけ、強力が強く融点の高いポリエステル
が適しており、又針温を低下させる作用を有する
ことからスパン糸(紡績糸)が望ましい。然し乍
ら適用々途に応じ、ナイロン、ビニロン、アクリ
ル等の素材及びフイラメント糸を用いることも可
能である。該素材に対しては、通常公知の手段に
より下撚、合糸、上撚等を施した糸条となし、次
いでこれに表面処理を施す。該処理は、縫針の発
熱を抑制するのに極めて重要な意味を持ち、基本
的にはすべり特性を高めて摩擦熱の発生を抑え、
又皮膜となつて耐熱性を増したり、熱の侵入を抑
制したり、又放冷、消散或いは熱容量を高める等
の作用を付与するものである。これについて例を
挙げて説明すると先ず第1処理として、繊維表面
に形成されるフツ素ポリマーのフルオルカーボン
基が配向される如きパーフルオロアルコールのア
クリル酸エステル、及びこれとシリコンの共重合
体、或は高融点ポリエチレン(融点120〜150℃)、
ポリエチレングリコールを用いることができる。 かゝる処理剤による処理は、例えばエマルジヨ
ン状態として対繊維重量比(o.w.f)で15%以下、
好ましくは10%以下になる如く沿中に添加して付
着させ、然る後脱水、乾燥を行ない処理を完結さ
せる。次に該処理を行なつた糸条に対し、更に以
下の如き第2の処理を行なう。 即ち、高、低両粘度のジメチルポリシロキサン
を混合してなる処理剤、或はこれに更に融点120
〜150℃のワツクスを併用して成る如き処理剤を
用いて処理する。該組合せは、例えば25℃におけ
る粘度が10000センチストークス以上、好ましく
は100000センチストークスの高粘度のジメチルポ
リシロキサンと100センチストークス以下好まし
くは10センチストークスの低粘度のジメチルポリ
シロキサンを重量比0.5:1〜1:0.5の範囲、好
ましくは1:1の割合で混合して用いる。尚、こ
れはワツクスを併用するときは、該配合したもの
に対し5wt%前後用いるのが好適である。 かゝる処理剤による処理はローラータツチ法等
により、対繊維重量比10%以下付着させるのが好
適である。以上の処理により本発明縫糸を得る訳
であるが、特に付着処理剤の縫針、釜等への脱落
による目詰まり、及び被縫物に対する油じみ等の
欠点を生じない為にはパーフルオロアルコールの
アクリル酸エステルとシリコンとの共重合体によ
る第1処理及び100000センチストークスと10セン
チストークスの高低両粘度のジメチルポリシロキ
サンを1:1の割合で配合した処理剤による第2
処理の組合せが最適である。 然し乍ら本発明の目的とする性能を有する縫糸
を得るためには、これに限定されるものではなく
例示した本発明処理に準じた処理も勿論可能であ
り、本発明に則つた基本思想を具現化するもので
あれば可能である。尚、該構成より成る本発明縫
糸は、例えばミシンの上糸のみに使用しても十分
使用に耐え得るものであるが、特に上糸、下糸と
して対に使用すると温度降下効果は120℃以上に
も達し、発熱温度の高い厳しい状態での使用も可
能となる。 又、ミシンの性能等に応じ、処理剤の付着量に
変化を持たせて適用すれば汎用性を増すことがで
きることは当然のことである。 以下実施例を挙げて説明する。 (実施例) 縫糸素材としてポリエステルスパン糸# 50/1
×3(Z撚)糸条を用い、これをパーフルオロア
ルコールのアクリル酸エステルとシリコンの共重
合体のエマルジヨン液中に浸漬し脱水、乾燥を行
なつた。尚、このときの処理浴は浴比1:15、処
理剤10%o.w.fに調整した。次いでこれを25℃の
粘度が100000センチストークスのジメチルポリシ
ロキサンと10センチストークスのジメチルポリシ
ロキサンを重量比1:1の割合で混合した処理剤
により、これをローラータツチ法による対繊維重
量比6%付着させて本発明縫糸を得た。 以上のようにして得た本発明縫糸は、以下のよ
うな評価結果を得た。
The present invention provides an excellent sewing thread that does not cause fusing phenomenon and can be applied to sewing machines that have become faster and more complicated in recent years, and especially for sewing thick fabrics such as working wear and jeans. It is something. Recently, the performance of sewing machines has improved significantly, and the number of revolutions has become faster in order to increase sewing efficiency. On the other hand, working wear, jeans, etc. are made of thicker fabrics, and when sewing these fabrics, they are layered 2 to 8 times, which, together with the aforementioned speed increase, has made it difficult to connect the sewing needle to the fabric being sewn. During this process, heat is generated due to friction, and in particular, the sewing needle generates high heat that is higher than the melting point of the sewing thread to be applied, resulting in a phenomenon in which the sewing thread breaks instantly during sewing or immediately after the operation is stopped. This not only reduces the sewing efficiency but also affects the quality of the finished product, and improvement thereof is particularly desired. In this respect, the present invention provides a sewing thread with unprecedented high performance.
When applied to a sewing needle that has generated more heat than above, the needle heat can be
A first treatment using a copolymer of perfluoroalcohol acrylic acid ester and silicone so as to be able to lower the temperature by 100°C or more, and a second treatment using a treatment agent containing dimethylpolysiloxane of both high and low viscosity. It is in. In other words, when sewing particularly thick fabrics, if you normally move the needle by empty stitching without using sewing thread, the sewing needle will
High heat of 320°C or higher is generated. For example, when four layers of T/C mixed working wear fabric are stacked and stitched with a sewing machine running at 4000 rpm, the needle temperature rapidly rises and reaches around 350°C. When such heat generation reaches a certain temperature, heating and heat generation reach an equilibrium state, and the temperature does not rise any further. Conventionally, there was no sewing thread that could withstand such heat generation, so it was necessary to install an air cooling device, reduce the number of rotations of the sewing machine, or apply large amounts of various oils while sewing. However, none of these methods improves the performance of the sewing thread itself, and the present invention provides a novel sewing thread that is unprecedented in this respect. The details will be explained below. First, as the material constituting the present invention, synthetic fibers, particularly polyesters that are strong and have a high melting point, are suitable, and spun yarns (spun yarns) are preferable because they have the effect of lowering needle temperature. However, depending on the application, it is also possible to use materials such as nylon, vinylon, acrylic, and filament yarn. The raw material is subjected to first twisting, doubling, ply twisting, etc. by commonly known means to form yarn, and then surface treatment is performed on this yarn. This treatment has an extremely important meaning in suppressing the heat generation of the sewing needle, and basically increases the sliding property and suppresses the generation of frictional heat.
It also forms a film to increase heat resistance, suppress heat intrusion, and impart functions such as cooling, dissipation, and increasing heat capacity. To explain this with an example, first, as a first treatment, an acrylic acid ester of perfluoroalcohol is used to orient the fluorocarbon groups of the fluoropolymer formed on the fiber surface, and a copolymer of this and silicon; Or high melting point polyethylene (melting point 120-150℃),
Polyethylene glycol can be used. Treatment with such a treatment agent can be performed, for example, in an emulsion state with a fiber weight ratio (OWF) of 15% or less,
Preferably, it is added in an amount of 10% or less and allowed to adhere, followed by dehydration and drying to complete the treatment. Next, the yarn that has undergone this treatment is further subjected to a second treatment as described below. That is, a treatment agent made by mixing dimethylpolysiloxane with both high and low viscosity, or a treatment agent with a melting point of 120
Processing is performed using a processing agent such as that used in combination with wax at ~150°C. The combination includes, for example, a high viscosity dimethylpolysiloxane with a viscosity of 10,000 centistokes or more, preferably 100,000 centistokes at 25°C, and a low viscosity dimethylpolysiloxane with a viscosity of 100 centistokes or less, preferably 10 centistokes in a weight ratio of 0.5:1. They are mixed at a ratio of 1:0.5 to 1:0.5, preferably 1:1. In addition, when this is used together with wax, it is suitable to use about 5 wt% of the blended material. In the treatment with such a treatment agent, it is preferable to apply the treatment agent at a weight ratio of 10% or less to the fiber by a roller touch method or the like. The sewing thread of the present invention is obtained by the above-mentioned treatment, but in particular, in order to avoid clogging due to the adhesion treatment agent falling into the sewing needle, hook, etc., and oil staining on the sewing material, it is necessary to use perfluoroalcohol. First treatment with a copolymer of acrylic acid ester and silicone, and second treatment with a treatment agent containing dimethylpolysiloxane with both high and low viscosities of 100,000 centistokes and 10 centistokes in a 1:1 ratio.
The combination of treatments is optimal. However, in order to obtain a sewing thread having the performance targeted by the present invention, the present invention is not limited to this, and it is of course possible to perform a treatment similar to the treatment of the present invention as exemplified, and embody the basic idea according to the present invention. It is possible if you do. The sewing thread of the present invention having the above structure can withstand use even when used only as the upper thread of a sewing machine, but especially when used as a pair of upper thread and lower thread, the temperature drop effect is 120°C or more. It can also be used in harsh conditions with high heat generation temperatures. It goes without saying that the versatility can be increased by varying the amount of the treatment agent applied depending on the performance of the sewing machine. This will be explained below with reference to examples. (Example) Polyester spun thread #50/1 as sewing thread material
A ×3 (Z-twist) yarn was immersed in an emulsion solution of a copolymer of perfluoroalcohol acrylic ester and silicone, dehydrated, and dried. The treatment bath at this time was adjusted to a bath ratio of 1:15 and a treatment agent of 10% owf. Next, this was treated with a treatment agent that was a mixture of dimethylpolysiloxane with a viscosity of 100,000 centistokes and dimethylpolysiloxane with a viscosity of 10 centistokes at a ratio of 1:1 at 25°C, and was processed by a roller touch method at a weight ratio of 6% to the fiber. A sewing thread of the present invention was obtained by adhering the thread. The sewing thread of the present invention obtained as described above obtained the following evaluation results.

【表】 但し、試験は以下の方法を用いた。 (試験方法) (1) ミシン:ブラザー環縫腕2本DP6−D925回
転数4000r.p.m (2) 縫 針:オルガンTV×5−18に針温度測定
用IC熱電対を付設したもの(オルガン針
(株)製) (3) 被縫生地:T/C混ワーキングウエア用 (4) 縫 糸:本発明実施例縫糸 通常の# 60テトロンスパンミシン糸 # 60綿カタン縫糸 (5) 条 件:生地1m縫製時の針温度を測定(室
温20℃、湿温65%無風状態) 以上の如く本発明縫糸は、特に過酷な340℃以
上にも達するワーキングウエア素材の縫製におい
て100℃以上の温度降下効果があり、溶断を全く
生じなかつた。これは従来にない全く新規なもの
である。 又、使用した処理剤の脱落による目づまり、油
じみ等の問題も全く生じないものであつた。 即ち、本発明においては当然のことながら縫針
の発熱温度を縫糸の融点以下にできたことによつ
て達成し得たものであり、これは種々の実験の結
果基本的には縫糸に平滑性を始めとする発熱抑制
及び耐熱、放熱等の作用によつて達成し得たもの
で、その効果な著大なものである。
[Table] However, the following method was used for the test. (Test method) (1) Sewing machine: 2 Brother chain stitch arms DP6-D925 rotation speed 4000r.pm (2) Sewing needle: Organ TV x 5-18 equipped with an IC thermocouple for needle temperature measurement (organ needle
(manufactured by Co., Ltd.) (3) Fabric to be sewn: T/C blend for working wear (4) Sewing thread: Sewing thread of the embodiment of the present invention Ordinary #60 Tetron spun sewing thread #60 Cotton Katan sewing thread (5) Conditions: Fabric Measuring the needle temperature when sewing 1m (room temperature 20℃, humidity 65% no wind) As described above, the sewing thread of the present invention has a temperature reduction effect of more than 100℃ when sewing working wear materials that reach temperatures of 340℃ or more, which is particularly harsh. There was no fusing at all. This is completely new and unprecedented. Furthermore, there were no problems such as clogging or oil stains due to the treatment agent used falling off. That is, in the present invention, this was naturally achieved by lowering the heat generation temperature of the sewing needle below the melting point of the sewing thread, and as a result of various experiments, this was basically achieved by making the sewing thread smoother. This was achieved through heat generation suppression, heat resistance, heat dissipation, etc., and its effects are significant.

Claims (1)

【特許請求の範囲】[Claims] 1 パーフルオロアルコールのアクリル酸エステ
ルとシリコンとの共重合物による第1処理と、高
低両粘度のジメチルポリシロキサンを配合した処
理剤による第2処理を施したことを特徴とする難
溶融性合成繊維縫糸。
1. A hardly meltable synthetic fiber characterized by being subjected to a first treatment with a copolymer of perfluoroalcohol acrylic ester and silicone and a second treatment with a treatment agent containing dimethylpolysiloxane of both high and low viscosity. sewing thread.
JP7714582A 1982-05-07 1982-05-07 Hardly meltable synthetic fiber sewing yarn Granted JPS58197333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7714582A JPS58197333A (en) 1982-05-07 1982-05-07 Hardly meltable synthetic fiber sewing yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7714582A JPS58197333A (en) 1982-05-07 1982-05-07 Hardly meltable synthetic fiber sewing yarn

Publications (2)

Publication Number Publication Date
JPS58197333A JPS58197333A (en) 1983-11-17
JPH0329902B2 true JPH0329902B2 (en) 1991-04-25

Family

ID=13625624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7714582A Granted JPS58197333A (en) 1982-05-07 1982-05-07 Hardly meltable synthetic fiber sewing yarn

Country Status (1)

Country Link
JP (1) JPS58197333A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112525A (en) * 1980-02-12 1981-09-04 Gunze Kk Water repellent sewing machine yarn and method

Also Published As

Publication number Publication date
JPS58197333A (en) 1983-11-17

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