JP3689945B2 - Processing method for polyester-based synthetic fiber products - Google Patents

Processing method for polyester-based synthetic fiber products Download PDF

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Publication number
JP3689945B2
JP3689945B2 JP26277895A JP26277895A JP3689945B2 JP 3689945 B2 JP3689945 B2 JP 3689945B2 JP 26277895 A JP26277895 A JP 26277895A JP 26277895 A JP26277895 A JP 26277895A JP 3689945 B2 JP3689945 B2 JP 3689945B2
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Prior art keywords
polyester
yarn
drawn yarn
semi
treatment
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JPH09111654A (en
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雄一郎 表
清一 越智
佳久 段本
良司 中村
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Toyobo Co Ltd
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Toyobo Co Ltd
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  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)
  • Woven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、ポリエステル半延伸糸からなり、優れた風合いを有し、ソフトでふくらみのある繊維製品を、経済的かつ効率的に得るための処理方法に関する。
【0002】
【従来の技術】
ポリエステル繊維は多くの優れた特徴を有しているために、合成繊維として極めて広い用途を有している。それらポリエステル繊維で作られた製品の中には、紡糸、延伸、加工、減量、染色等の工程において、様々な機能、風合いを与えたものが多く出ている。中でも、ソフトでふくらみをもった製品、従来の天然繊維になかった新しい風合いを持つ製品は、消費者の側から多く望まれている。
これらふくらみを持った製品を作る方法の一つとして、収縮率の異なった原糸を混繊した異収縮混繊糸を用いる方法が主流となっている。また、さらに大きなふくらみ、ソフトさを得るための手段としては、高収縮糸と、熱を加えたときに伸長する自己伸長糸を混繊する方法がある。
【0003】
自己伸長糸に関しては、ポリエチレンテレフタレートポリマーを紡糸、延伸して得られる糸を収縮熱処理する(特公昭41−1205号公報、特公昭43−28262号公報)、あるいはポリエステル未延伸糸を収縮熱処理した後、延伸する(特公昭63−46167号公報)、ポリエステル半延伸糸を弛緩熱処理する(特公平2−293410号公報)等があるが、いずれも従来の完成糸を製造する工程に加え、熱処理、延伸等の糸加工の手間がかかり、経済面、作業面ともに改善が望まれている。
【0004】
また、ポリエステル半延伸糸は、生産性が高く染色性が良い等の利点があるものの、それら自身は強度が低く、収縮率が高いため、製品にするには延燃、延伸仮燃、弛緩熱処理等の熱処理を行い、収縮率を抑えて取り扱いやすくしてやる必要がある。未延伸糸、半延伸糸を糸の段階で、収縮抑制のある有機化合物と染料により染色処理し延伸することにより、染色した完成糸を得る方法がある(特開昭50−24526号公報、特開昭50−48221号公報)が、この方法でも延伸工程は削減できず、経済面、作業面での能率は良くなっていない。またこの方法では、染色性等が改善されただけにとどまり、ふくらみ等の風合い面での特性は付与されていない。
【0005】
【発明が解決しようとする課題】
本発明は、上記従来技術の有する問題点を克服し、優れた風合いを有し、ソフトでふくらみのある繊維製品を、ポリエステル半延伸糸を材料として経済的かつ効率的に提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明者らは、上記目的を達成するために鋭意検討した結果、以下の処理方法により、ソフトでふくらみがあり、風合いも良い繊維製品を経済的かつ能率的に提供できることを見いだし、本発明に到達した。
【0007】
即ち、本発明は、ポリエステル半延伸糸またはそれを含む混織糸からなる繊維製品を、ポリエステルに対してキャリヤー能を有する有機化合物を含む溶液で処理して、前記ポリエステル半延伸糸を伸長させることを特徴とするポリエステル系合成繊維製品の処理方法に関する。
また、本発明は、上記ポリエステル半延伸糸の複屈折率が30×10-3〜65×10-3であり、かつ乾熱における最大熱応力が70mg/d以下であることを特徴とする上記ポリエステル系合成繊維製品の処理方法に関する。
さらに、本発明は、上記ポリエステルに対してキャリヤー能を有する有機化合物を含む溶液中の有機化合物使用量が、繊維製品に対して0.1%owf以上であり、かつ処理の開始温度が上記ポリエステル半延伸糸のガラス転移温度未満であることを特徴とする上記ポリエステル系合成繊維製品の処理方法に関する。
【0008】
本発明におけるポリエステルとは、繊維形成性のポリエステルであれば特に限定はされない。例えば、テレフタル酸、イソフタル酸または2,6−ナフタレンジカルボン酸を主たるカルボン酸成分とし、エチレングリコール、プロピレングリコールまたはテトラメチレングリコールを主たるグリコール成分とする、ポリエチレンテレフタレート、ポリエチレンイソフタレート、ポリブチレンテレフタレート、あるいはポリエチレン−2,6−ナフタレート等の線状ポリエステルを主成分としたものが好ましく、特にポリエチレンテレフタレートが好ましい。
【0009】
また、当該ポリエステルは、用途によっては難燃性、易染性、制電性等の機能性を有する化合物等が共重合していても、ダル剤、無機粒子等の添加剤等が含まれていても構わない。
【0010】
ポリエステル半延伸糸は、上記繊維形成性のポリエステルを紡糸速度2500〜4000m/分の範囲で紡糸することにより得られるものが、伸長性等の点から好ましい。
【0011】
当該ポリエステル半延伸糸は、その複屈折率(以下、Δnともいう)が30×l0-3〜65×10-3であることが好ましく、より好ましくは30×l0-3〜40×10-3である。
複屈折率が上記範囲内(30×l0-3〜65×10-3)であれば、繊維物性面から製品にし易く、本発明の特徴でもあるポリエステル半延伸糸の自己伸長、およびそれによるふくらみがより得られ易い。
【0012】
なお、当該複屈折率は、偏光顕微鏡によるコンベンセンター法により測定したものである。また、当該複屈折率は、紡糸速度、オリフィス径等により調整することができる。
【0013】
ポリエステル半延伸糸の乾熱における最大熱応力は70mg/d以下であることが好ましく、より好ましくは20〜65mg/dである。
最大熱応力が70mg/d以下であると、ポリエステル半延伸糸の収縮抑制が十分に行われ、ポリエステル半延伸糸の伸長がより得られ易い。
【0014】
なお、乾熱における最大熱応力は、次のようにして測定したものである。まず、熱分析機(TMA-SS120C、セイコウ電子(株)製)を用い、一端が歪ゲージ、他端が固定端のクリップに、試料をクリップ間隔が20mmとなるように取り付けた。次に、デニール当たり1/30gの初荷重をかけ、1℃/分の昇温速度で昇温し、発生する熱応力を歪ゲージから検出し、横軸を温度、縦軸を応力とするチャートから熱応力が最大となる値を読み取った。測定は2回行い、その平均値を求めた。乾熱における最大熱応力(mg/d)=最大応力点の応力/デニール。
また、当該最大熱応力は、紡糸速度、オリフィス径等により調整することができる。
【0015】
本発明におけるポリエステル半延伸糸またはそれを含む混繊糸からなる繊維製品とは、ポリエステル半延伸糸を含んだ繊維製品であれば特に制限はなく、ポリエステル半延伸糸をどのような割合、形で含んでいてもよいものである。
例えば、製品のふくらみ、物性等を考慮に入れると、ポリエステル等の完成糸とポリエステル半延伸糸の混繊等の形で複合されることが好ましい。また、ポリエステル半延伸糸に複合される繊維の収縮率が適度に高いことがより好ましく、こうすることにより、製品のふくらみは増し、ソフトでふくらみのある非常に良い風合いになる。
【0016】
また、ポリエステル半延伸糸を含む混繊糸とは、ポリエステル半延伸糸と他の糸を混繊したもの等をいう。混繊糸に用いられる材料(ポリエステル半延伸糸以外の糸)としては、ポリエステル完成糸、ナイロンフィラメント、アクリル、綿、シルク、ウール等が挙げられる。
さらに、混繊糸におけるポリエステル半延伸糸の含有割合は、特に限定されないが、混繊糸全体を100重量%とした場合、好ましくは20〜80重量%である。
【0017】
本発明の処理方法は、上記ポリエステル半延伸糸またはそれを含む混織糸からなる繊維製品を、ポリエステルに対してキャリヤー能を有する有機化合物を含む溶液(以下、処理液ともいう)で処理する方法である。
上記繊維製品を上記処理液で処理することにより、ポリエステル半延伸糸の収縮能を抑制するとともに、自己伸長性を付与することができる。
なお、ポリエステルに対してキャリヤー能を有するとは、染料をポリエステルの繊維内部に運び込む作用を有することをいう。
【0018】
本発明におけるポリエステルに対してキャリヤー能を有する有機化合物とは、例えば、安息香酸、安息香酸エステル等の安息香酸誘導体;サリチル酸、サリチル酸エステル等のサリチル酸誘導体;フェノール、m−クレゾール等のフェノール類;モノクロロベンゼン、トリクロロベンゼン等のハロゲン化芳香族類;アセトフェノン等のケトン類;ハロゲン化フェノール類;フェニルフェノール類;アニソール等のエーテル類;ジ−およびトリフェニルメタン類;ジフェニル誘導体;メチルナフタレン、ナフトール等のナフタレン類;アニリン類等、主に芳香族系の有機化合物誘導体等を挙げることができるが、これらに限定されるものではない。また、これらは1種でも2種以上でも用いることができる。
【0019】
ポリエステルに対してキャリヤー能を有する有機化合物を含む溶液は、水系、有機溶剤系のいずれでもよい。
【0020】
当該処理液中の有機化合物使用量は、ポリエステル半延伸糸の伸長特性の点から、繊維製品に対し0.1%owf(% on the weight of fabric) 以上であることが好ましい。また、キャリアーの分散性、現場での安全性、処理液コスト等の点から、より好ましくは1〜20%owfである。
【0021】
また、当該処理液は、ポリエステルに対してキャリヤー能を有する有機化合物以外に、乳化剤、精練剤、分散剤、均染剤、pH緩衝剤等、各種助剤および各種染料等を、必要に応じて数種含んでいてもよい。
【0022】
本発明の処理方法は、処理自体単独で行うことも、精練工程、染色工程等と同時に行うこともできる。
処理を単独で行う場合は、処理をする以前にガラス転移温度以上の温度がかからなければ、どの時点で行っても構わない。また、他の工程と同時に行う場合は、精練浴とともに処理する方法、染色浴とともに処理する方法等がある。
【0023】
当該処理は、ポリエステル半延伸糸のガラス転移温度未満で開始することが好ましい。
即ち、ガラス転移温度以上で処理を開始すると、上記処理液による収縮抑制機能が働く前にポリエステル半延伸糸の収縮が起こり易く、そのためポリエステル半延伸糸の伸長が起こりにくくなり、製品自体の風合いが硬くなったり、ふくらみが出にくくなる傾向がある。
従って、ガラス転移温度未満で当該処理を開始し、ポリエステル半延伸糸の収縮を抑制してから、ガラス転移温度以上に温度を上げることにより、ポリエステル半延伸糸を伸長させることが好ましい。なお、ガラス転移温度以上の温度にすることによるポリエステル半延伸糸の自己伸長は、処理浴中で連続的に昇温することによっても発現する。
【0024】
上記処理後のポリエステル半延伸糸の伸長率は、0%より大きいことが必要であり、好ましくは0.1%以上、より好ましくは2〜15%である。
なお、当該伸長率は、次のようにして測定したものである。まず、ポリエステル半延伸糸に、デニール当たり1/30gの荷重を加え、ポリエステル半延伸糸における50.0cm長さの2点間にあらかじめ印を付けておき、これをガーゼにくるみ、繊維製品と一緒に処理液中に入れた。処理後、風乾して同荷重を加えて、印の間の長さ(Wcm)を測定し、下式により伸長率を算出した。
伸長率(%)=100×(W−50)/50
【0025】
本発明の処理方法は、ポリエステル半延伸糸の収縮能を抑制するとともに、自己伸長性を与える作用効果がある。そのため、当該処理方法によれば、従来行っていたポリエステル半延伸糸への、延燃、延伸仮燃、弛緩熱処理等の熱処理の工程を削減できるだけでなく、風合い的にもソフトでふくらみのある繊維製品を得ることができる。
また、従来より様々な方法で作られていた自己伸長糸をより簡単な工程で作ることができ、ソフトでふくらみの大きい異収縮混繊糸製品等を従来よりも簡便化された工程で作ることができる。
さらに、上記方法で伸長処理された繊維製品は、伸長した時点で安定しており、その後の精練、セット、減量、染色、加工等の工程では何ら問題を生じない。
【0026】
【実施例】
以下、実施例により本発明をより詳細に説明するが、本発明はこれらに限定されるものではない。
【0027】
参考例
ポリエチレンテレフタレートの溶融ポリマーを、表1のように紡糸速度2000〜4500m/分で紡糸して、各フィラメント糸(ポリエステル半延伸糸;30デニール18フィラメント)を得、原糸I〜VIとした。
【0028】
上記各ポリエステル半延伸糸の各物性を以下のようにして測定した。その結果を表1に示す。
(1) 複屈折率(Δn)
偏光顕微鏡によるコンベンセンター法により測定した。
(2) 最大熱応力
熱分析機(TMA-SS120C、セイコウ電子(株)製)を用い、一端が歪ゲージ、他端が固定端のクリップに、試料をクリップ間隔が20mmとなるように取り付けた。次に、デニール当たり1/30gの初荷重をかけ、1℃/分の昇温速度で昇温し、発生する熱応力を歪ゲージから検出し、横軸を温度、縦軸を応力とするチャートから熱応力が最大となる値を読み取った。測定は2回行い、その平均値を求めた。乾熱における最大熱応力(mg/d)=最大応力点の応力/デニール。
(3) ガラス転移温度
示差熱分析計(DSC-50型、島津製作所製)を用いて測定した。
【0029】
【表1】

Figure 0003689945
【0030】
実施例1〜4、比較例1,2
上記参考例で得られた原糸I〜VIをそれぞれ、30デニール18フィラメントのポリエステル高収縮糸(乾熱(160℃×30分間)の収縮率:15%、沸水収縮率:10%)と、交絡ノズルを用いて流体交絡混繊を行い、得られた混繊糸に325回/mの撚を付与して糊付乾燥(70℃)し、これを経糸として用いた。緯糸には60デニール36フィラメントのポリエステル糸に2500回/mの撚を付与したS撚糸とZ撚糸を用いた。上記経糸と緯糸を2本交互に打ち込んだ平組織の織物を得た。
【0031】
上記織物サンプルを、o−フェニルフェノール系のキャリヤーであるテトロシンOEN(山川薬品(株)製)が1g/リットルの濃度(繊維製品に対する有機化合物(o−フェニルフェノール)使用量2.0%owf)に分散し調整されたエマルジョンの処理液に入れた(浴比1:50)。液流染色機にて処理温度30℃で処理を開始し、撹拌をしながら1℃/分の温度で昇温させていき、浴温度を100℃まで昇温させた後、続いて100℃で45分間撹拌を行った後、冷却して取り出した。その後、洗浄および乾燥を行い、繊維製品を得た。
【0032】
実施例5
原糸III を用い、メチルナフタレン系のキャリヤーであるテトロシンTWF(山川薬品(株)製)を用いて処理を行った以外は、実施例1〜4と同様にして繊維製品を得た。
【0033】
比較例3
原糸III を用い、テトロシンOEN(山川薬品(株)製)を0.04g/リットルの濃度(繊維製品に対する有機化合物使用量0.08%owf)に分散させた以外は、実施例1〜4と同様にして繊維製品を得た。
【0034】
比較例4
原糸III を用い、処理温度80℃で処理を開始した以外は、実施例1〜4と同様にして繊維製品を得た。
【0035】
上記実施例および比較例で得られた繊維製品について、以下のようにして伸長率、風合い(ソフトさ、ふくらみ)を測定した。この結果を表2に示す。
▲1▼伸長率
各原糸I〜VIにそれぞれ、デニール当たり1/30gの荷重を加え、原糸における50.0cm長さの2点間にあらかじめ印を付けておき、これをガーゼにくるみ、織物サンプルと一緒に処理液中に入れた。処理後、風乾して同荷重を加えて、印の間の長さ(Wcm)を測定し、下式により伸長率を算出した。
伸長率(%)=100×(W−50)/50
【0036】
▲2▼風合い(ソフトさ、ふくらみ)
ポリエステル織物の風合評価の経験が長い染色仕上げ技術者3名によって、風合い(ソフトさ、ふくらみ)を以下の基準により判定した。
Figure 0003689945
【0037】
【表2】
Figure 0003689945
【0038】
【発明の効果】
本発明の処理方法によれば、優れた風合いを有し、ソフトでふくらみのある、ポリエステル半延伸糸からなる繊維製品を、経済的かつ効率的に得ることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a treatment method for economically and efficiently obtaining a textile product comprising a polyester semi-drawn yarn, having an excellent texture, and being soft and swelled.
[0002]
[Prior art]
Polyester fibers have many excellent features and therefore have a very wide range of uses as synthetic fibers. Many products made of these polyester fibers have been given various functions and textures in processes such as spinning, drawing, processing, weight loss, and dyeing. Among them, many products that are soft and swelled and products that have a new texture not found in conventional natural fibers are desired by consumers.
As one of the methods for producing these products having bulges, a method using a different shrinkage mixed yarn obtained by mixing raw yarns having different shrinkage rates has become the mainstream. Further, as a means for obtaining a larger swell and softness, there is a method of blending a high shrinkage yarn and a self-extension yarn that elongates when heat is applied.
[0003]
For self-stretched yarns, a yarn obtained by spinning and drawing a polyethylene terephthalate polymer is subjected to shrink heat treatment (Japanese Patent Publication No. 41-1205, Japanese Patent Publication No. 43-28262), or after a polyester undrawn yarn is subjected to shrink heat treatment , Stretching (Japanese Examined Patent Publication No. Sho 63-46167), relaxation heat treatment of polyester semi-stretched yarn (Japanese Examined Patent Publication No. 2-293410), etc., in addition to the conventional process for producing a finished yarn, It takes time and effort for yarn processing such as drawing, and improvements in both economic and work aspects are desired.
[0004]
In addition, polyester semi-drawn yarns have advantages such as high productivity and good dyeability, but they themselves have low strength and high shrinkage rate. It is necessary to make it easy to handle by reducing the shrinkage rate. There is a method of obtaining a dyed finished yarn by dyeing an undrawn yarn and a semi-drawn yarn with an organic compound having a shrinkage suppression and a dye at the yarn stage and drawing (Japanese Patent Application Laid-Open No. 50-24526, special feature). (Kaisho 50-48221)), however, the stretching process cannot be reduced even by this method, and the efficiency in terms of economy and work is not improved. Further, in this method, only the dyeability and the like are improved, and the texture characteristics such as bulging are not given.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to overcome the above-mentioned problems of the prior art, and to provide a soft and swelling textile product economically and efficiently using a polyester semi-drawn yarn as a material. To do.
[0006]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors have found that the following treatment method can provide a textile product that is soft, swelled, and has a good texture economically and efficiently. Reached.
[0007]
That is, the present invention treats a fiber product comprising a polyester semi-drawn yarn or a mixed woven yarn containing the same with a solution containing an organic compound having a carrier ability with respect to the polyester to elongate the polyester semi-drawn yarn. The processing method of the polyester-type synthetic fiber product characterized by these.
The present invention is also characterized in that the birefringence of the polyester semi-drawn yarn is 30 × 10 −3 to 65 × 10 −3 and the maximum thermal stress in dry heat is 70 mg / d or less. The present invention relates to a method for treating a polyester synthetic fiber product.
Further, according to the present invention, the amount of the organic compound used in the solution containing an organic compound having a carrier ability with respect to the polyester is 0.1% owf or more with respect to the textile product, and the treatment start temperature is the polyester. It is below the glass transition temperature of a semi-drawn yarn, It is related with the processing method of the said polyester-type synthetic fiber product characterized by the above-mentioned.
[0008]
The polyester in the present invention is not particularly limited as long as it is a fiber-forming polyester. For example, terephthalic acid, isophthalic acid or 2,6-naphthalenedicarboxylic acid as the main carboxylic acid component, ethylene glycol, propylene glycol or tetramethylene glycol as the main glycol component, polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate, or Those mainly composed of linear polyester such as polyethylene-2,6-naphthalate are preferred, and polyethylene terephthalate is particularly preferred.
[0009]
In addition, the polyester contains additives such as dull agents and inorganic particles even if a compound having functionality such as flame retardancy, dyeability, and antistatic properties is copolymerized depending on the use. It doesn't matter.
[0010]
The polyester semi-drawn yarn is preferably obtained by spinning the fiber-forming polyester at a spinning speed of 2500 to 4000 m / min from the viewpoint of extensibility.
[0011]
The polyester semi-drawn yarn preferably has a birefringence (hereinafter also referred to as Δn) of 30 × 10 −3 to 65 × 10 −3 , more preferably 30 × 10 −3 to 40 × 10 −3. It is.
If the birefringence is within the above range (30 × 10 −3 to 65 × 10 −3 ), it is easy to make a product from the viewpoint of the physical properties of the fiber, and the self-extension of the polyester semi-drawn yarn, which is also a feature of the present invention, and the swelling caused thereby Is easier to obtain.
[0012]
The birefringence is measured by a conventional center method using a polarizing microscope. The birefringence can be adjusted by the spinning speed, the orifice diameter, and the like.
[0013]
The maximum thermal stress in dry heat of the polyester semi-drawn yarn is preferably 70 mg / d or less, more preferably 20 to 65 mg / d.
When the maximum thermal stress is 70 mg / d or less, the polyester half-drawn yarn is sufficiently contracted and the polyester half-drawn yarn is more easily stretched.
[0014]
In addition, the maximum thermal stress in dry heat is measured as follows. First, using a thermal analyzer (TMA-SS120C, manufactured by Seiko Electronics Co., Ltd.), a sample was attached to a clip having one end with a strain gauge and the other end with a fixed end so that the clip interval was 20 mm. Next, an initial load of 1/30 g per denier is applied, the temperature is raised at a rate of 1 ° C./min, the generated thermal stress is detected from the strain gauge, the horizontal axis is the temperature, and the vertical axis is the stress. The value at which the thermal stress was maximized was read. The measurement was performed twice and the average value was obtained. Maximum thermal stress in dry heat (mg / d) = Stress at maximum stress / denier.
The maximum thermal stress can be adjusted by the spinning speed, the orifice diameter, and the like.
[0015]
The fiber product comprising the polyester semi-stretched yarn or the mixed fiber containing the same in the present invention is not particularly limited as long as it is a fiber product including the polyester semi-stretched yarn. It may be included.
For example, taking into account the swell, physical properties, etc. of the product, it is preferable that the composite yarn is a composite fiber of a finished yarn such as polyester and a polyester semi-drawn yarn. Further, it is more preferable that the shrinkage ratio of the fiber combined with the polyester semi-drawn yarn is moderately high, and by doing so, the swell of the product is increased, and a very good texture with soft and swell is obtained.
[0016]
Moreover, the blended yarn containing the polyester half-stretched yarn refers to a blend of polyester half-stretched yarn and other yarn. Examples of the material used for the blended yarn (yarn other than the polyester half-drawn yarn) include polyester finished yarn, nylon filament, acrylic, cotton, silk, wool, and the like.
Furthermore, the content ratio of the polyester semi-drawn yarn in the blended yarn is not particularly limited, but is preferably 20 to 80 wt% when the entire blended yarn is 100 wt%.
[0017]
The treatment method of the present invention is a method of treating a fiber product comprising the above-mentioned polyester semi-drawn yarn or a mixed woven yarn containing the same with a solution containing an organic compound having a carrier ability with respect to polyester (hereinafter also referred to as a treatment solution). It is.
By treating the fiber product with the treatment liquid, it is possible to suppress the shrinkability of the polyester semi-drawn yarn and to impart self-extension.
The term “having carrier ability with respect to polyester” means that the dye has a function of bringing the dye into the polyester fibers.
[0018]
Examples of the organic compound having carrier ability with respect to the polyester in the present invention include benzoic acid derivatives such as benzoic acid and benzoic acid esters; salicylic acid derivatives such as salicylic acid and salicylic acid esters; phenols such as phenol and m-cresol; Halogenated aromatics such as chlorobenzene and trichlorobenzene; Ketones such as acetophenone; Halogenated phenols; Phenylphenols; Ethers such as anisole; Di- and triphenylmethanes; Diphenyl derivatives; Methylnaphthalene and naphthol Naphthalenes; anilines and the like, mainly aromatic organic compound derivatives and the like can be mentioned, but are not limited thereto. These may be used alone or in combination of two or more.
[0019]
The solution containing an organic compound having a carrier ability with respect to polyester may be either aqueous or organic solvent-based.
[0020]
The amount of the organic compound used in the treatment liquid is preferably 0.1% owf (% on the weight of fabric) or more with respect to the fiber product from the viewpoint of the elongation characteristics of the polyester semi-drawn yarn. Further, from the viewpoint of carrier dispersibility, on-site safety, treatment liquid cost, etc., it is more preferably 1 to 20% owf.
[0021]
In addition to the organic compound having carrier ability with respect to the polyester, the treatment liquid contains an emulsifier, a scouring agent, a dispersant, a leveling agent, a pH buffering agent, various auxiliaries and various dyes as necessary. Several kinds may be included.
[0022]
The treatment method of the present invention can be carried out by itself or simultaneously with a scouring step, a dyeing step and the like.
When the treatment is carried out independently, it may be carried out at any time as long as the temperature is not higher than the glass transition temperature before the treatment. Moreover, when performing simultaneously with another process, there exist the method of processing with a scouring bath, the method of processing with a dyeing bath, etc.
[0023]
The treatment is preferably started below the glass transition temperature of the polyester semi-drawn yarn.
That is, if the treatment is started at a temperature higher than the glass transition temperature, the polyester semi-stretched yarn is likely to shrink before the shrinkage-suppressing function by the treatment liquid is activated, so that the polyester semi-stretched yarn is less likely to be stretched, and the texture of the product itself is reduced. There is a tendency to become stiff and to prevent swelling.
Therefore, it is preferable to extend the polyester semi-drawn yarn by starting the treatment below the glass transition temperature and suppressing the shrinkage of the polyester semi-drawn yarn and then raising the temperature to the glass transition temperature or higher. In addition, the self-elongation of the polyester semi-drawn yarn by setting the temperature to be equal to or higher than the glass transition temperature is also manifested by continuously raising the temperature in the treatment bath.
[0024]
The elongation ratio of the polyester half-drawn yarn after the treatment needs to be larger than 0%, preferably 0.1% or more, more preferably 2 to 15%.
The elongation rate is measured as follows. First, add a load of 1 / 30g per denier to the polyester semi-drawn yarn, mark it in advance between two points of 50.0cm length in the polyester semi-drawn yarn, wrap this in gauze, and together with the textile product Into the treatment solution. After the treatment, it was air-dried, the same load was applied, the length between marks (Wcm) was measured, and the elongation rate was calculated by the following formula.
Elongation rate (%) = 100 × (W−50) / 50
[0025]
The treatment method of the present invention has the effect of suppressing the shrinkability of the polyester semi-drawn yarn and imparting self-extension. Therefore, according to this treatment method, not only can the conventional heat treatment steps such as flame spread, stretch preliminary combustion, and relaxation heat treatment be performed on the polyester semi-stretched yarn, but also a soft and swelling fiber in texture. You can get a product.
In addition, it is possible to make self-stretched yarns made by various methods in a simpler process, and to make soft and swelled different shrinkage mixed yarn products etc. in a simpler process than before. Can do.
Furthermore, the fiber product stretched by the above method is stable at the time of stretching, and does not cause any problems in the subsequent steps such as scouring, setting, weight loss, dyeing, and processing.
[0026]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these.
[0027]
Reference Example A melted polymer of polyethylene terephthalate was spun at a spinning speed of 2000 to 4500 m / min as shown in Table 1 to obtain each filament yarn (polyester semi-drawn yarn; 30 denier 18 filaments), which were used as raw yarns I to VI. .
[0028]
Each physical property of each polyester half-drawn yarn was measured as follows. The results are shown in Table 1.
(1) Birefringence (Δn)
The measurement was performed by the conventional center method using a polarizing microscope.
(2) Using a maximum thermal stress thermal analyzer (TMA-SS120C, manufactured by Seiko Electronics Co., Ltd.), the sample was attached to a clip with one end being a strain gauge and the other end being a fixed end so that the clip interval was 20 mm. . Next, an initial load of 1/30 g per denier is applied, the temperature is raised at a rate of 1 ° C./min, the generated thermal stress is detected from the strain gauge, the horizontal axis is the temperature, and the vertical axis is the stress. The value at which the thermal stress was maximized was read. The measurement was performed twice and the average value was obtained. Maximum thermal stress in dry heat (mg / d) = Stress at maximum stress / denier.
(3) Measured using a glass transition temperature differential thermal analyzer (DSC-50, manufactured by Shimadzu Corporation).
[0029]
[Table 1]
Figure 0003689945
[0030]
Examples 1 to 4, Comparative Examples 1 and 2
Each of the raw yarns I to VI obtained in the above reference examples is a 30 denier 18 filament polyester high shrink yarn (dry heat (160 ° C. × 30 minutes) shrinkage: 15%, boiling water shrinkage: 10%), Fluid entanglement mixing was performed using an entanglement nozzle, a twist of 325 times / m was imparted to the obtained mixed yarn, dried with glue (70 ° C.), and this was used as a warp. As the weft, S twisted yarn and Z twisted yarn obtained by applying a twist of 2500 times / m to a polyester yarn of 60 denier 36 filaments were used. A plain woven fabric in which two warps and wefts were alternately driven was obtained.
[0031]
Tetrocin OEN (manufactured by Yamakawa Pharmaceutical Co., Ltd.), an o-phenylphenol carrier, has a concentration of 1 g / liter (amount of organic compound (o-phenylphenol) used for fiber products is 2.0% owf). The emulsion was prepared by dispersing in an emulsion (bath ratio 1:50). The treatment is started at a treatment temperature of 30 ° C. with a liquid dyeing machine, the temperature is raised at a temperature of 1 ° C./min while stirring, the bath temperature is raised to 100 ° C., and then at 100 ° C. After stirring for 45 minutes, it was cooled and taken out. Thereafter, washing and drying were performed to obtain a textile product.
[0032]
Example 5
Fiber products were obtained in the same manner as in Examples 1 to 4, except that the raw yarn III was used and treated with Tetrocin TWF (manufactured by Yamakawa Yakuhin Co., Ltd.), which is a methylnaphthalene carrier.
[0033]
Comparative Example 3
Examples 1-4 except that Tetrocin OEN (manufactured by Yamakawa Yakuhin Co., Ltd.) was dispersed at a concentration of 0.04 g / liter (the amount of organic compound used was 0.08% owf for the textile product) using the raw yarn III. In the same manner, a textile product was obtained.
[0034]
Comparative Example 4
A fiber product was obtained in the same manner as in Examples 1 to 4, except that the raw yarn III was used and the treatment was started at a treatment temperature of 80 ° C.
[0035]
About the textiles obtained by the said Example and the comparative example, the elongation rate and the texture (softness, swelling) were measured as follows. The results are shown in Table 2.
(1) Elongation rate A load of 1/30 g per denier is applied to each of the yarns I to VI, and a mark is made in advance between two points of 50.0 cm length in the yarn, and this is wrapped in gauze, Along with the fabric sample, it was placed in the treatment solution. After the treatment, it was air-dried, the same load was applied, the length between marks (Wcm) was measured, and the elongation rate was calculated by the following formula.
Elongation rate (%) = 100 × (W−50) / 50
[0036]
▲ 2 ▼ texture (softness, bulge)
The texture (softness, bulge) was determined by the following criteria by three dyeing finish engineers with long experience in texture evaluation of polyester fabrics.
Figure 0003689945
[0037]
[Table 2]
Figure 0003689945
[0038]
【The invention's effect】
According to the treatment method of the present invention, it is possible to economically and efficiently obtain a fiber product made of polyester semi-drawn yarn having an excellent texture and soft and swelled.

Claims (2)

ポリエステル半延伸糸またはそれを含む混織糸からなる織物を、ポリエステルに対してキャリヤー能を有する有機化合物を含む溶液で処理して、前記ポリエステル半延伸糸を伸長させるポリエステル系合成繊維織物の処理方法であって、
ポリエステル半延伸糸の複屈折率が30×10 −3 〜65×10 −3 であり、有機化合物の使用量が織物に対して0.1%owf以上であり、かつ処理の開始温度がポリエステル半延伸糸のガラス転移温度未満であることを特徴とする、方法
Fabrics made of polyester and a half-drawn yarn or混織yarn containing it, and treated with a solution containing an organic compound having a carrier capacity for polyesters, Lupolen Riesuteru based synthetic fiber fabric is extended the polyester half-drawn yarn A processing method ,
The birefringence of the polyester semi-drawn yarn is 30 × 10 −3 to 65 × 10 −3 , the amount of the organic compound used is 0.1% owf or more with respect to the fabric, and the treatment start temperature is the polyester half A method characterized by being below the glass transition temperature of the drawn yarn .
上記ポリエステル半延伸糸の乾熱における最大熱応力が70mg/d以下であることを特徴とする請求項1記載のポリエステル系合成繊維織物の処理方法。2. The method for treating a polyester-based synthetic fiber fabric according to claim 1, wherein the maximum heat stress in the dry heat of the polyester semi-drawn yarn is 70 mg / d or less.
JP26277895A 1995-10-11 1995-10-11 Processing method for polyester-based synthetic fiber products Expired - Fee Related JP3689945B2 (en)

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