JP2572035B2 - Multifilament yarn - Google Patents
Multifilament yarnInfo
- Publication number
- JP2572035B2 JP2572035B2 JP61028200A JP2820086A JP2572035B2 JP 2572035 B2 JP2572035 B2 JP 2572035B2 JP 61028200 A JP61028200 A JP 61028200A JP 2820086 A JP2820086 A JP 2820086A JP 2572035 B2 JP2572035 B2 JP 2572035B2
- Authority
- JP
- Japan
- Prior art keywords
- crystallinity
- yarn
- filament
- thick
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，個々のフイラメントに太部と細部を有し，
製編織して染色したときに太部と細部の濃淡色差が少な
く，染色堅牢度に優れ，さらに，製編織工程等の過張力
によって変形されて，織編物にしたときに緯段，経筋等
の欠点となることがないマルチフイラメント糸に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention has a thick part and a detailed part for each filament.
When dyeing by weaving and weaving, there is little difference in shade between thick and thin parts, and the color fastness is excellent. The present invention relates to a multifilament yarn which does not become a drawback of the above.
（従来の技術） 従来，ポリエステルの太細フイラメントからなるマル
チフイラメント糸は，特開昭52−103523号公報，特公昭
51−7207号公報，特開昭55−16930号公報などにより知
られており，これらの糸条は太部と細部が各フイラメン
ト間で揃った位相のものから，比較的あるいは完全に不
揃いのものまで多種生産されている。(Prior Art) Conventionally, a multifilament yarn comprising a polyester thick filament has been disclosed in Japanese Patent Application Laid-Open No. 52-103523,
These yarns are known from Japanese Patent Application Laid-Open No. 51-7207 and Japanese Patent Application Laid-Open No. 55-16930. Various types are produced.
（発明が解決しようとする問題点） しかし，上記のような従来の糸条は，太部と細部の濃
淡色差が強く，そのため用途が大幅に制限されるもので
あった。例えば，太部と細部が各フイラメント間で位相
が揃った糸条は，太部と細部の形態変化に加えて濃淡色
差が加わるため，表面変化が強調され過ぎ，一方，位相
が不揃いの糸条は強い濃淡色差の杢調となり，いずれも
癖のある外観を有するものであった。したがって，これ
らの糸条は白晒しやプリントの用途には比較的用い易い
が，浸染の用途には利用しにくいものであった。さら
に，これらの糸条は，太部が低結晶化度の未延伸あるい
は半延伸の状態であるために，製編織工程等における過
張力によって容易に延び，これらを布帛にすると，緯
段，経筋等の欠点が生じ易く，この欠点を解消するため
には特別の張力管理を要する等極めて取扱いが難しいも
のであった。また，これらの糸条は通常分散染料で染色
されるので，官能基に染料が染着する染色機構と，染色
堅牢度が低く，特に低結晶性の太部は容易に濃染される
が，その反面染料が出やすいため，染色堅牢度がさらに
低くなるという欠点があった。(Problems to be Solved by the Invention) However, the conventional yarn as described above has a large difference in shades of color between a thick portion and a detailed portion, so that the use thereof is greatly limited. For example, in the case of a yarn in which the thick part and the fine part have the same phase between the filaments, the surface change is excessively emphasized because the shading and the color difference are added in addition to the morphological change of the thick part and the fine part, while the yarn having the irregular phase. Had a strong difference in shades of color, and all had a habitous appearance. Therefore, these yarns are relatively easy to use for bleaching and printing, but difficult to use for dyeing applications. Furthermore, since these yarns are unstretched or semi-stretched with a low degree of crystallinity at the thick portion, they easily extend due to over-tension in the weaving or weaving process and the like. Defects such as streaks tend to occur, and handling of these defects is extremely difficult, for example, special tension management is required. In addition, since these yarns are usually dyed with disperse dyes, the dyeing mechanism for dyeing the functional groups and the color fastness are low. On the other hand, there is a disadvantage that the dye fastness is further lowered since the dye is easily produced.
本発明は，上記のような従来の糸条の欠点を解消する
ものであって，その目的は，フイラメントの太部と細部
の濃淡色差が少なく，染色堅牢度に優れ，製編織工程等
の過張力の下においても伸びて変形しない太部と細部を
有するフイラメントからなるマルチフイラメント糸を提
供することにある。The present invention is intended to solve the above-mentioned drawbacks of the conventional yarn, and has as its object to reduce the difference in shades of color between the thick and fine parts of the filament, to provide excellent color fastness, and to improve the process of weaving and weaving. It is an object of the present invention to provide a multifilament yarn composed of a filament having a thick portion and details that do not stretch and deform even under tension.
（問題点を解決するための手段） 本発明者等は，上記従来の糸条の欠点を解消すべく鋭
意研究の結果，特定の物性の太部と細部を有するポリア
ミド合成繊維のフイラメントからなるマルチフイラメン
ト糸によって上記の欠点を解消し得ることを見出し，本
発明に到達したものである。(Means for Solving the Problems) The present inventors have conducted intensive studies in order to solve the above-mentioned drawbacks of the conventional yarn, and as a result, have found that a multifilament made of a polyamide synthetic fiber filament having a thick part and specific details of specific physical properties. The present inventors have found that the above-mentioned disadvantages can be solved by a filament yarn, and have reached the present invention.
すなわち，本発明は，太部の断面積と細部の断面積の
比が1.2以上のフイラメントから構成された単一のポリ
マーからなるポリアミド合成繊維マルチフイラメント糸
であって，フイラメントの太部と細部の結晶化度がとも
に35％以上であって，細部の結晶化度が太部の結晶化度
よりも大きく，かつ細部と太部の結晶化度の差が５％未
満であることを特徴とするマルチフイラメント糸を要旨
とするものである。That is, the present invention relates to a polyamide synthetic fiber multifilament yarn comprising a single polymer composed of a filament having a ratio of a cross-sectional area of a thick portion to a cross-sectional area of a detail of 1.2 or more, wherein the filament has a thick portion and a fine portion. Both the crystallinity is 35% or more, the crystallinity of the detail is larger than the crystallinity of the thick part, and the difference between the crystallinity of the detail and the thick part is less than 5%. The subject matter is a multifilament yarn.
以下，本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
まず，本発明のマルチフイラメント糸を構成する個々
のフイラメントは，その長手方向に断面積が変化してい
て，太部の断面積と細部の断面積の比が1.2以上である
ことが必要である。本発明において，フイラメント間の
位相が比較的揃った糸条の場合は，太細が強調されて織
編物にスラブ様等の形態差による凹凸が与えられ，ま
た，フイラメント間の位相が不揃いの糸条の場合は，糸
斑調の形態差による穏やかな凹凸や特に深みのある色調
が得られるが，フイラメントの太部の断面積と細部の断
面積の比が1.2以上ないと，太細を強調したり，太さ斑
のある形態や深みのある色調を与えることはできない。
フイラメントの太部の断面積と細部の断面積の比の上限
は，特に制限はないが，この比が余り大きくなると，後
の製編織時などにおける工程通過性が低下したり，得ら
れる布帛の耐摩耗性が低下するおそれがあるので，通常
は２程度以下が好ましい。First, each of the filaments constituting the multifilament yarn of the present invention has a cross-sectional area that changes in the longitudinal direction, and the ratio of the cross-sectional area of the thick part to the cross-sectional area of the detail needs to be 1.2 or more. . In the present invention, in the case of a yarn in which the phases between the filaments are relatively uniform, the thickness is emphasized to give irregularities due to a slab-like or other morphological difference to the woven or knitted fabric, and the yarn in which the phases between the filaments are irregular. In the case of the strip, gentle unevenness due to the difference in the form of the thread spots and a particularly deep color tone are obtained, but if the ratio of the cross-sectional area of the thick part of the filament to the cross-sectional area of the details is not more than 1.2, the fineness is emphasized. Or it cannot give a form with uneven thickness or a deep color tone.
The upper limit of the ratio of the cross-sectional area of the thick part to the cross-sectional area of the fine part of the filament is not particularly limited. However, if this ratio is too large, the passability of the process during knitting and weaving will be reduced, Usually, about 2 or less is preferable because the abrasion resistance may decrease.
ここで，フイラメントの断面積は，マルチフイラメン
ト糸からフイラメントを取り出し，太部と細部の断面を
光学顕微鏡によって写真撮影し，写真上で面積比を算出
する。なお，フイラメントが円形断面の場合は，光学顕
微鏡によって太部と細部の径を求め，これらの径の２乗
の比を求めて，これに代えることができる。Here, the cross-sectional area of the filament is obtained by taking out the filament from the multifilament yarn, taking a photograph of the cross section of the thick part and the detailed part with an optical microscope, and calculating the area ratio on the photograph. When the filament has a circular cross section, the diameter of the thick part and the diameter of the fine part are determined by an optical microscope, and the ratio of the square of these diameters is determined.
次に，本発明のマルチフイラメント糸は，単一のポリ
マーからなるポリアミド合成繊維からなり，フイラメン
トの太部と細部の結晶化度はいずれも35％以上であっ
て，細部の結晶化度が太部の結晶化度よりも大きく，か
つ細部と太部の結晶化度の差が５％未満であることが必
要である。Next, the multifilament yarn of the present invention is made of a synthetic polyamide fiber composed of a single polymer, and both the thick portion and the fineness of the filament have a crystallinity of 35% or more, and the crystallinity of the fineness is large. It is necessary that the degree of crystallinity be greater than the crystallinity of the part and that the difference between the crystallinity of the detail and the thick part be less than 5%.
ポリエステル繊維は分散染料等の染料を用いて単に分
子の間に染料を吸着させる染色法を適用するが，このよ
うな場合は染料分子の出入りが比較的容易であるので，
染色堅牢度が低く，また，分子の配列，結晶状態等によ
って染料分子の吸着の難易が決まり，濃淡色差が強くな
り易い。染色堅牢度を向上させ，濃淡色差を少なくする
ためには，染料とポリマーの官能基が作用するポリアミ
ド繊維の糸条が有効である。ポリアミドの官能器に染着
する染料としては，酸性染料等のアニオン染料あるいは
カチオン染料を用いることが好ましい。しかし，これら
の染料に染まる官能基を有する糸条であっても，官能基
の量のみによって染着濃度が決定されるのではなく，結
晶化度も染着濃度に大きく影響する。すなわち，染色浴
中の糸条の膨潤の程度，繊維構造の緻密性等によって，
染料の染着難易度が変わるので，フイラメントの太部と
細部の結晶化度の差が大きいと，官能基に染着する染料
であってもこれらの部分で濃淡色差が強くくなる。For polyester fibers, a dyeing method in which a dye such as a disperse dye is used to simply adsorb the dye between the molecules is applied. In such a case, the entrance and exit of the dye molecules are relatively easy.
The dyeing fastness is low, and the degree of difficulty in adsorbing the dye molecules is determined by the arrangement of the molecules, the crystal state, and the like, and the color difference in density is likely to be strong. In order to improve the color fastness and reduce the color difference, it is effective to use a polyamide fiber yarn on which the functional groups of the dye and the polymer act. It is preferable to use an anionic dye such as an acid dye or a cationic dye as the dye to be dyed on the polyamide functional unit. However, even with a yarn having a functional group that can be dyed by these dyes, the dyeing concentration is not determined only by the amount of the functional group, and the crystallinity greatly affects the dyeing concentration. That is, depending on the degree of swelling of the yarn in the dyeing bath and the denseness of the fiber structure,
Since the degree of difficulty in dyeing changes, if the difference in crystallinity between the thick part and the fine part of the filament is large, even if the dye is dyed on a functional group, the difference in shades of color will increase in these parts.
したがって，濃淡色差を抑え，良好な染色堅牢度を得る
ためには，比較的構造が緻密な高結晶性高分子であるポ
リアミド合成繊維のマルチフイラメント糸が好適であ
り，フイラメントの太部と細部の結晶化度をともに35％
以上にすることが必要である。結晶化度が35％未満であ
ると，フイラメントの細部と太部の結晶化度の差が少な
くても，膨潤度に差が現れ，染料の吸着差として濃淡色
差が強くなり，また，染料分子の出入りが比較的容易に
なるので，染色堅牢度が低くなり易い。Therefore, in order to suppress the color difference and obtain good dyeing fastness, a multifilament yarn of a polyamide synthetic fiber, which is a highly crystalline polymer having a relatively dense structure, is preferable. 35% crystallinity
It is necessary to do the above. If the degree of crystallinity is less than 35%, even if the difference in crystallinity between the details and the thick part of the filament is small, there will be a difference in swelling, and the difference in light and shade of the dye will be stronger, and the difference in dye color will be stronger. It is relatively easy to enter and exit, so that the color fastness tends to be low.
また，フイラメントの細部の結晶化度が太部の結晶化
度よりも大きく，細部と太部の結晶化度の差を５％未満
とすることが必要である。太部と細部の結晶化度が35％
以上であっても，細部と太部の結晶化度の差が５％以上
であると，結晶化度の低い太部の官能基へ染料が会合す
る機会は結晶化度の高い細部へ染料が会合する機会に比
べて多くなり，濃淡色差が強くなるので好ましない。Further, it is necessary that the crystallinity of the details of the filament is larger than the crystallinity of the thick part, and the difference between the crystallinity of the detail and the thick part is less than 5%. 35% crystallinity of thick and small parts
Even above, if the difference between the crystallinity of the detail and the thick part is 5% or more, the opportunity for the dye to associate with the functional part of the thick part having a low crystallinity is that I do not like it because there are more opportunities to meet and the color difference becomes stronger.
本発明において，結晶化度は密度勾配管法により密度
を測定し，次式から算出する。In the present invention, the crystallinity is calculated from the following equation by measuring the density by a density gradient tube method.
ただしXc；結晶化率〔結晶化度;100Xc（％）〕 d ;測定試料の密度（g/cm3） dc；完全結晶部の密度（g/cm3） da；完全非結晶部の密度（g/cm3） ここで，ナイロン６の場合は，dc＝1.230g/cm3，da＝1.
084g/cm3を用いる。 X c ; crystallization rate [crystallinity; 100 Xc (%)] d; density of measurement sample (g / cm 3 ) d c ; density of perfect crystal part (g / cm 3 ) d a ; perfect non-crystal part Density (g / cm 3 ) Here, for nylon 6, d c = 1.230 g / cm 3 , d a = 1.
Use 084 g / cm 3 .
本発明において，マルチフイラメント糸が，染色され
た布帛上で濃淡色差が少ないか，否かは容易に視認する
ことができるが，数値として評価する１つの判定法とし
て以下に述べるFYL値の変動幅Ｒ（％）によってもよ
い。In the present invention, it is easy to visually recognize whether or not the multi-filament yarn has a small color difference on the dyed fabric. However, as one method for evaluating the numerical value, the fluctuation range of the FYL value described below is used. It may be R (%).
FYL値の変動幅Ｒ（％）の測定は，市販の連続染着度
測定装置FYL−500（東レ製）を用い，試試糸をこのFYL
値測定装置の中に20m/minの速度で走行させて測定す
る。染料としてはスミノールアーストブルーＧ（住友化
学製）を用い,0.5％owfで常圧下で染色する。このFYL値
を糸長20m毎に連続的に記録計に描かせ，これを５回繰
り返し，各20mの糸長間の最大FYL値と最小FYL値の差xi
を求める。このxiの値５個の平均値Ｒが本発明にいう変
動幅Ｒ（％）である。The fluctuation range R (%) of the FYL value was measured using a commercially available continuous dyeing degree measuring device FYL-500 (manufactured by Toray Industries, Inc.).
It is measured by running at a speed of 20 m / min in a value measuring device. The dye is dyed under normal pressure at 0.5% owf using Suminol Last Blue G (Sumitomo Chemical). This FYL value is continuously drawn on the recorder every 20 m of yarn length, and this is repeated five times, and the difference x i between the maximum FYL value and the minimum FYL value between the yarn lengths of each 20 m is calculated.
Ask for. The average value R of the five values of x i is the fluctuation range R (%) according to the present invention.
このFYL値の変動幅が５％以上になると，濃淡色差が強
くなるので，好ましない。すなわち，本発明において
は，この変動幅が５％未満であることが好ましい。 If the fluctuation range of the FYL value is 5% or more, the difference in density between shades is increased, which is not preferable. That is, in the present invention, it is preferable that the fluctuation width is less than 5%.
次に，本発明のマルチフイラメント糸の製造方法の一
例を述べる。Next, an example of the method for producing the multifilament yarn of the present invention will be described.
まず，複屈折Δｎが15×10-3〜25×10-3，結晶化度35
％未満のポリアミド合成繊維マルチフイラメント未延伸
糸を，複屈折をほとんど増加させることなく結晶化度を
増加させるように，例えば低い伸長率あるいはオーバー
フイード状態で熱処理し，連続して室温冷延伸すること
によって，個々のフイラメントにネツキングを発生させ
ることによって，本発明の太細フイラメントからなる糸
条が得られる。First, the birefringence Δn is 15 × 10 −3 to 25 × 10 −3 and the crystallinity is 35
% Of unstretched yarn of polyamide synthetic fiber multifilament less than 10% by heat treatment, for example, at a low elongation or overfeed state, and continuously cold-drawn at room temperature so as to increase crystallinity without increasing birefringence. Thus, the netting is generated in each of the filaments, whereby the yarn comprising the thick filament of the present invention can be obtained.
上記のように，低配向性ポリアミドマルチフイラメン
ト糸を熱処理することによって結晶化度を増加させる
と，配向はほとんど増加することなく非晶部の分子が球
晶構造に組み込まれ，軽度のａ軸配向をとり，これを室
温下で冷延伸すると，応力に対して結晶はｃ軸配向をと
ろうとするために結晶回転を起こすが，結晶化度の増
加，結晶サイズの増大により，この結晶回転がスムーズ
に行えず，均一な延伸が妨げられ，比較的応力集中の受
け易い部分を中心にネツキングを発生し，その結晶，個
々のフイラメントに太部と細部が形成されるものと考え
られる。したがって，本発明のマルチフイラメント糸を
得るためには，低配向性の状態で結晶化度を増加させる
ことが必要である。As described above, when the crystallinity is increased by heat-treating the low-orientation polyamide multifilament yarn, the molecules in the amorphous part are incorporated into the spherulite structure with almost no increase in the orientation, and the light a-axis orientation When the film is cold-drawn at room temperature, the crystal rotates due to the stress trying to take the c-axis orientation. However, this crystal rotation is smooth due to the increase in crystallinity and crystal size. It is considered that uniform stretching is hindered, netting occurs mainly in a portion where stress concentration is relatively apt to occur, and thick portions and details are formed in the crystal and individual filaments. Therefore, in order to obtain the multifilament yarn of the present invention, it is necessary to increase the crystallinity in a state of low orientation.
次に，本発明のマルチフイラメント糸の製造工程の一
例を第１図に基づいて説明する。Next, an example of a manufacturing process of the multifilament yarn of the present invention will be described with reference to FIG.
スプール１から引き出されたポリアミドマルチフイラ
メント糸の未延伸糸２は，フイードローラ３により，熱
処理域に供給され，ここで加熱装置４により熱処理を施
され，次いでデリベリローラ５と延伸ローラ６の間で室
温下で延伸され，捲取装置７によって捲取られる。The undrawn yarn 2 of the polyamide multifilament yarn drawn out of the spool 1 is supplied to a heat treatment area by a feed roller 3, where it is subjected to a heat treatment by a heating device 4, and then between a delivery roller 5 and a drawing roller 6 at room temperature. And wound up by the winding device 7.
本発明に適用するポリアミド合成繊維マルチフイラメ
ント糸としては，ナイロン6,ナイロン66,ナイロン610あ
るいは芳香族ポリアミド等を挙げることができ，要はア
ミド基を持つ単一のポリマーの合成繊維マルチフイラメ
ント糸ならばいずれでもよい。Examples of the polyamide synthetic fiber multifilament yarn applicable to the present invention include nylon 6, nylon 66, nylon 610, and aromatic polyamide. In short, a single polymer synthetic fiber multifilament yarn having an amide group can be used. Any may be used.
（作用） 本発明のマルチフイラメント糸は，単一のポリマーか
らなるポリアミド繊維からなるので，染色堅牢度に優れ
る。しかもフイラメントの太部と細部の結晶化度がとも
に35％以上であって，細部の結晶化度が太部の結晶化度
よりも大きく，かつ細部と太部の結晶化度の差が５％未
満であるので，結晶化度が高く，太部と細部の結晶化度
の差が少なく，太部と細部の濃淡色差が少ないものであ
る。さらに，結晶化度が高く，太部と細部の結晶化度の
差が少ないので，この点がポリアミド繊維からなること
と相俟って良好な染色堅牢度にも寄与する。さらに，結
晶化度が高いので，初期弾性応力が高くなって，過張力
下における糸条の伸びが抑制される。(Action) Since the multifilament yarn of the present invention is made of a polyamide fiber composed of a single polymer, it has excellent color fastness. In addition, the crystallinity of the thick part and the fine part of the filament are both 35% or more, the crystallinity of the fine part is larger than that of the thick part, and the difference between the crystallinity of the fine part and the thick part is 5%. Therefore, the crystallinity is high, the difference in the crystallinity between the thick part and the detail is small, and the difference in shade between the thick part and the detail is small. Furthermore, since the degree of crystallinity is high and the difference in crystallinity between the thick part and the small part is small, this point, combined with the fact that the fiber is made of polyamide fiber, also contributes to good dyeing fastness. Furthermore, since the degree of crystallinity is high, the initial elastic stress increases, and the elongation of the yarn under over tension is suppressed.
また，本発明のマルチフイラメント糸は，フイラメン
トの太部と細部がランダムな位相で集合された不揃いの
糸条においては，極めて深みのある色調を与えることが
できる。その理由は明らかではないが，次のように考え
られる。すなわち，太部と細部のない均一な径のフイラ
メントからなる糸条を製編織して染色仕上げをした布帛
にあっては，入射した光は白色の正反射光と有色の拡散
反射光が視覚として感じられ，白茶けた色調になる。太
部と細部を有するフイラメントからなるマルチフイラメ
ント糸はフイラメントの太部と細部の存在により，入射
した光の正反射光は少なく，拡散反射光が多くなる。こ
の拡散反射光は太部と細部を有するフイラメントからな
るマルチフイラメント糸の中を何回か反射，屈折を繰り
返し，吸収された視覚として感じられる表面反射光が少
なくなるために，光学的濃度が向上し，深みのある色調
が得られる。さらに，太部と細部の断面積の比が1.2以
上のフイラメントからなるので，太部と細部が各フイラ
メント間で位相が揃った糸条においては，スラブ様など
の太細効果を与え，また，位相が不揃いの糸条において
は，穏やかな糸斑調の表面変化を与える。In addition, the multifilament yarn of the present invention can provide an extremely deep color tone in an irregular yarn in which the thick part and the details of the filament are gathered at random phases. Although the reason is not clear, it is considered as follows. In other words, in the case of a fabric dyed by weaving and weaving a yarn consisting of a filament with a uniform diameter with no thick part and no details, the incident light is visually recognized as white regular reflection light and colored diffuse reflection light. It is felt and becomes a brownish tone. In a multifilament yarn composed of a filament having a thick portion and details, due to the presence of the thick portion and details of the filament, specular reflection light of incident light is small and diffuse reflection light is increased. This diffusely reflected light is reflected and refracted several times in a multi-filament yarn consisting of a filament with a thick part and a detailed part. And a deep color tone is obtained. Furthermore, since the cross section ratio of the thick part to the detail is made of a filament with a ratio of 1.2 or more, in the yarn where the thick part and the detail have the same phase between the filaments, a thick and thin effect such as slab is given. In the case of a yarn having an irregular phase, a gentle change of the surface of the yarn is provided.
（実施例） 次に，本発明を実施例によって具体的に説明する。以
下の実施例において，摩擦堅牢度はJIS−Ｌ−0849に，
また洗濯堅牢度はJIS−Ｌ−0844に準拠して測定したも
のである。(Examples) Next, the present invention will be described specifically with reference to examples. In the following examples, the friction fastness is JIS-L-0849,
The washing fastness is measured according to JIS-L-0844.
実施例１ 複屈折21.5×10-3，結晶化度33.3％（密度1.1254g/cm
3）のナイロン６マルチフイラメント未延伸糸193d/12f
を第１図に示す加工工程に従って第１表の加工条件で熱
処理，冷延伸を行い，糸条の見掛けの太さが長手方向に
変化した太細糸86d/12fを得た。なお，熱処理後の糸条
を採取して複屈折と結晶化度を測定したところ，複屈折
23.2×10-3，結晶化度42.7％（密度1.1390g/cm3）であ
った。Example 1 Birefringence: 21.5 × 10 −3 , crystallinity: 33.3% (density: 1.1254 g / cm
3 ) Nylon 6 multifilament undrawn yarn 193d / 12f
Was subjected to heat treatment and cold drawing under the processing conditions shown in Table 1 in accordance with the processing steps shown in FIG. 1 to obtain a thick and thin yarn 86d / 12f in which the apparent thickness of the yarn changed in the longitudinal direction. The birefringence and crystallinity of the heat-treated yarn were measured.
The crystallinity was 23.2 × 10 −3 and the crystallinity was 42.7% (density: 1.1390 g / cm 3 ).
得られた太細糸を経糸密度103本/2.54cm,緯糸密度88
本/2.54cmの平組織に製織し，染料に酸性染料スミノー
ルフアーストブルーＧ（住友化学製）0.5owfを用いて染
色し，仕上げをした。得られた布帛は濃淡色差の少ない
凹凸を有する外観の布帛であった。この布帛の摩擦堅牢
度および洗濯堅牢度はいずれも５級であった。また，製
織にあたって本発明のマルチフイラメント糸を40gの張
力で管巻して製織したが，管巻時の過張力による伸び変
形もなく，緯段，経筋等の織物欠点はなかった。 The obtained thick and thin yarn is warp density 103 / 2.54cm, weft density 88.
The fabric was woven into a plain tissue of 2.54 cm / 2.54 cm and dyed with 0.5owf acid dye Suminol Fast Blue G (Sumitomo Chemical) to finish. The obtained fabric was a fabric having an appearance having irregularities with little difference in light and shade colors. The rub fastness and the wash fastness of this fabric were all 5th grade. In addition, when weaving, the multifilament yarn of the present invention was wrapped in a tube with a tension of 40 g and woven. However, there was no elongation deformation due to excessive tension at the time of wrapping the tube, and there were no woven fabric defects such as weft and warp.
実施例２ 複屈折22.3×10-3，結晶化度34.2％（密度1.1266g/cm
3）のナイロン６マルチフイラメント未延伸糸267d/24f
を第１図に示す加工工程に従って第２表の加工条件で熱
処理，冷延伸を行い，個々のフイラメントに太部と細部
を有していて位相が不揃いの糸条であって，糸条径の長
手方向の変化が少なく，凹凸の少ないマルチフイラメン
ト糸120d/12fを得た。なお，熱処理後の糸条を採取して
複屈折と結晶化度を測定したところ，複屈折24.8×1
0-3，結晶化度41.7％（密度1.1375g/cm3）であった。Example 2 Birefringence: 22.3 × 10 −3 , crystallinity: 34.2% (density: 1.1266 g / cm
3 ) Nylon 6 multifilament undrawn yarn 267d / 24f
Is subjected to heat treatment and cold drawing under the processing conditions shown in Table 2 in accordance with the processing steps shown in FIG. 1, and the filaments have thick portions and details in the individual filaments, and are irregular in phase. A multifilament yarn 120d / 12f with little change in the longitudinal direction and little unevenness was obtained. The birefringence and crystallinity of the heat-treated yarn were measured.
The crystallinity was 0 -3 and the crystallinity was 41.7% (density 1.1375 g / cm 3 ).
得られたマルチフイラメント糸を経糸密度92本/2.54c
m,緯糸密度84本/2.54cmで2/2の綾組織に製織し，染料に
酸性染料スミノールミリングレツドRS（住友化学製）1.
5％owfを用いて染色し，仕上げをしたところ，布帛表面
に強い凹凸はなく，経緯にかすかな糸斑のある杢の目立
たない深みのある色調の布帛が得られた。 The obtained multi-filament yarn is warped with a density of 92 yarns / 2.54c.
m, weft density 84 yarns / 2.54 cm, weaving into a 2/2 twill structure, acid dye Sumino Milling Red RS (Sumitomo Chemical) 1.
When the fabric was dyed and finished with 5% owf, the fabric had no strong irregularities on the surface of the fabric and had a deep color tone with inconspicuous heather with slight thread spots on the course.
この布帛の摩擦堅牢度および洗濯堅牢度はいずれも５級
であった。また，製織にあたって，本発明のマルチフイ
ラメント糸を50gの張力で管巻して製織したが，管巻時
の過張力による伸び変形もなく，緯段，経筋等の織物欠
点はなかった。The rub fastness and the wash fastness of this fabric were all 5th grade. In addition, in weaving, the multifilament yarn of the present invention was wrapped in a tube with a tension of 50 g and woven. However, there was no elongation deformation due to excessive tension at the time of wrapping the tube, and there were no woven fabric defects such as weft and warp.
（発明の効果） 以上述べたように，本発明のマルチフイラメント糸
は，太部と細部を有するフイラメントからなるにもかか
わらず，フイラメントの太部と細部の濃淡色差が少ない
ものであり，また，染色堅牢度にも優れるものである。
また，製編織工程あるいは製編織準備工程等における過
張力によっても伸びて変形されることがなく，特別な工
程管理をすることなく欠点のない織編物を得ることがで
きるものである。(Effects of the Invention) As described above, the multifilament yarn of the present invention, despite being composed of a filament having a thick portion and details, has a small difference in shading color between the thick portion and the details of the filament. It also has excellent color fastness.
In addition, it is possible to obtain a woven or knitted material having no defects without being stretched and deformed even by excessive tension in a knitting or weaving process or a weaving or weaving preparation process, without performing any special process control.
上記のように，フイラメントの太部と細部の濃淡色差
が少ないので，太部と細部が各フイラメント間で位相が
揃った糸条においては，色調の変化は穏やかなものとな
り，糸条の太部と細部の形態変化のみが強調されて従来
の糸条のように表面変化が強調され過ぎることはなく，
また，位相が不揃いの糸条においては，強い濃淡色差の
杢調となることはなく，穏やかな濃淡が混在した布帛と
することができる。As described above, since the color difference between the thick portion and the details of the filament is small, the color tone of the yarn in which the thick portion and the details have the same phase between the filaments is gentle, and the thick portion of the yarn is small. Only the morphological change of the details is emphasized, and the surface change is not overemphasized like the conventional yarn,
In addition, in the case of yarns having irregular phases, the fabric does not have a strong shade of color difference, and can be a fabric in which gentle shades are mixed.
第１図は本発明のマルチフイラメント糸を製造する方法
の一実施態様を示す工程概略図である。FIG. 1 is a schematic process diagram showing an embodiment of the method for producing a multifilament yarn of the present invention.
Claims (1)
上のフイラメントから構成された単一のポリマーからな
るポリアミド合成繊維マルチフイラメント糸であって，
フイラメントの太部と細部の結晶化度がともに35％以上
であって，細部の結晶化度が太部の結晶化度よりも大き
く，かつ細部と太部の結晶化度の差が５％未満であるこ
とを特徴とするマルチフイラメント糸。1. A polyamide synthetic fiber multifilament yarn comprising a single polymer comprising a filament having a ratio of a cross-sectional area of a thick portion to a cross-sectional area of a detail of 1.2 or more,
The crystallinity of the thick part and the fine part of the filament are both 35% or more, the crystallinity of the detail is larger than the crystallinity of the thick part, and the difference between the crystallinity of the detail and the thick part is less than 5%. A multifilament yarn characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61028200A JP2572035B2 (en) | 1986-02-12 | 1986-02-12 | Multifilament yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61028200A JP2572035B2 (en) | 1986-02-12 | 1986-02-12 | Multifilament yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62191510A JPS62191510A (en) | 1987-08-21 |
| JP2572035B2 true JP2572035B2 (en) | 1997-01-16 |
Family
ID=12242027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61028200A Expired - Fee Related JP2572035B2 (en) | 1986-02-12 | 1986-02-12 | Multifilament yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2572035B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03137831A (en) * | 1989-10-24 | 1991-06-12 | Yamaha Corp | Optical disk device |
| EP0953676A4 (en) * | 1997-09-19 | 2001-03-14 | Toray Industries | Method of dyeing polyamide fiber structure in grandrelle tone and dyed structure obtained thereby |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE787014A (en) * | 1971-07-31 | 1973-01-31 | Pfizer | METHOD AND REAGENT FOR DETECTING THE PRESENCE OF THE AUSTRALIAN ANTIGEN |
| JPS5836210A (en) * | 1981-08-12 | 1983-03-03 | Toray Ind Inc | Thick and thin polyamide filament and its preparation |
| JPS59157310A (en) * | 1983-02-28 | 1984-09-06 | Toyobo Co Ltd | Synthetic yarn having thickness and thinness and its preparation |
| JPS60162806A (en) * | 1984-01-27 | 1985-08-24 | Toyobo Co Ltd | High-tenacity polyamide fiber of fine denier and production thereof |
-
1986
- 1986-02-12 JP JP61028200A patent/JP2572035B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62191510A (en) | 1987-08-21 |
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