JPH0373656B2 - - Google Patents
Info
- Publication number
- JPH0373656B2 JPH0373656B2 JP61183773A JP18377386A JPH0373656B2 JP H0373656 B2 JPH0373656 B2 JP H0373656B2 JP 61183773 A JP61183773 A JP 61183773A JP 18377386 A JP18377386 A JP 18377386A JP H0373656 B2 JPH0373656 B2 JP H0373656B2
- Authority
- JP
- Japan
- Prior art keywords
- component
- core
- units
- sheath
- fiber
- 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
Links
- 239000000306 component Substances 0.000 claims description 59
- 239000000835 fiber Substances 0.000 claims description 46
- 239000008358 core component Substances 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 11
- -1 polyethylene terephthalate Polymers 0.000 claims description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 claims description 4
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical group O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 4
- VVTXSHLLIKXMPY-UHFFFAOYSA-L disodium;2-sulfobenzene-1,3-dicarboxylate Chemical compound [Na+].[Na+].OS(=O)(=O)C1=C(C([O-])=O)C=CC=C1C([O-])=O VVTXSHLLIKXMPY-UHFFFAOYSA-L 0.000 claims description 3
- 238000004040 coloring Methods 0.000 description 11
- 229920000728 polyester Polymers 0.000 description 11
- 238000006116 polymerization reaction Methods 0.000 description 10
- 238000009987 spinning Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 229920001410 Microfiber Polymers 0.000 description 6
- 229920001519 homopolymer Polymers 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229920001634 Copolyester Polymers 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高発色性、耐フロステイング性および
高強度を有する芯鞘型複合繊維に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a core-sheath type composite fiber having high color development, frosting resistance and high strength.
５−ソジウムスルフオイソフタレート単位を共
重合成分として含むポリエステルを用いたカチオ
ン可染ポリエステル繊維は公知である。
Cationically dyeable polyester fibers using polyester containing 5-sodium sulfoisophthalate units as a copolymer component are known.
しかし、充分な発色性を得るためにこの共重合
成分の含有率を高めるとその繊維強度は低いもの
となり、特に、高級な外観とタツチを有するスウ
エード調人工皮革やシルキー調布帛に用いて好適
な極細繊維においては、充分な発色性と強度とを
両立させることは、上記共重合ポリマー単独の極
細繊維を用いる限り、極めて困難であつた。 However, if the content of this copolymer component is increased in order to obtain sufficient color development, the fiber strength becomes low, making it particularly suitable for use in suede-like artificial leather and silky-like fabrics that have a high-quality appearance and touch. In ultrafine fibers, it has been extremely difficult to achieve both sufficient color development and strength as long as ultrafine fibers made of the above-mentioned copolymer alone are used.
特公昭61−6165号公報には、この点を解決する
手段として、例えば以下の構成が提案されてい
る。即ち、極細繊維を芯鞘型構造となし、鞘成分
には、上記共重合成分を高い含有率で含み充分な
発色性を有する共重合ポリエステルを用い、一
方、芯成分には、高重合度のポリエステルを用い
ることにより繊維を補強させようとするものであ
る。 Japanese Patent Publication No. 61-6165 proposes, for example, the following configuration as a means to solve this problem. That is, the ultrafine fibers have a core-sheath type structure, and the sheath component is a copolyester containing a high content of the above copolymerized components and has sufficient coloring properties, while the core component is a copolymerized polyester with a high degree of polymerization. By using polyester, the fibers are reinforced.
この構成をとることにより、高い発色性と実用
に供し得る強度とを有する極細繊維が得られる。
しかしながら、この構成ではまだ以下の問題点が
ある。即ち、芯成分に用いる高重合度ポリエステ
ルをホモポリマーとすると、カチオン染料による
染色では、ホモポリマー部分が染色されないた
め、衣服の裾等のような頻繁に摩擦を受ける部位
にこの繊維を用いると、フロステイングが発生し
易いのである。このフロステイングは、肉眼で見
ると摩擦部位に霜がおりたように白化して見える
現象であるが、顕微鏡でより詳細に観察すると極
細繊維を構成する二成分が剥離し、ホモポリマー
部分がむき出しになつていることが判明した。 By adopting this configuration, ultrafine fibers having high color development and strength suitable for practical use can be obtained.
However, this configuration still has the following problems. In other words, if the highly polymerized polyester used as the core component is a homopolymer, the homopolymer portion will not be dyed with cationic dyes, so if this fiber is used in areas that are frequently subjected to friction, such as the hem of clothes, Frosting is likely to occur. This frosting is a phenomenon that appears to the naked eye as whitening that looks like frost on the friction site, but when observed in more detail under a microscope, the two components that make up the microfibers peel off, exposing the homopolymer portion. It turns out that it's getting better.
本発明は、高発色性と耐フロステイング性を有
し、しかも高強度な芯鞘型複合繊維を提供するこ
とを目的とする。
An object of the present invention is to provide a core-sheath type composite fiber that has high color development and frosting resistance, and also has high strength.
本発明者らは前記欠点の解消を図るべく鋭意検
討した結果、以下の手段によれば問題点が解決さ
れることを見出し、本発明に到達した。
The inventors of the present invention have made extensive studies to solve the above drawbacks, and as a result, have found that the problems can be solved by the following means, and have arrived at the present invention.
本発明は次の構成を有する。 The present invention has the following configuration.
芯鞘型複合繊維において、芯成分はエチレンテ
レフタレート単位またはブチレンテレフタレート
単位を主体とするポリマーに５−ソジウムスルフ
オイソフタレート成分単位が全酸成分単位の３モ
ル％以上含有されている共重合体であり、鞘成分
はポリエチレンテレフタレートまたはポリブチレ
ンテレフタレートを主体とするポリマーに５−ソ
ジウムスルフオイソフタレート成分単位が芯成分
より少なく含有されてなる共重合体であることを
特徴とする芯鞘型複合繊維。 In the core-sheath type composite fiber, the core component is a copolymer containing 5-sodium sulfoisophthalate component units in an amount of 3 mol% or more of the total acid component units in a polymer mainly composed of ethylene terephthalate units or butylene terephthalate units. is a core-sheath type, characterized in that the sheath component is a copolymer made of a polymer mainly composed of polyethylene terephthalate or polybutylene terephthalate containing less 5-sodium sulfoisophthalate component units than the core component. Composite fiber.
つまり本発明の骨子とするところは芯鞘型複合
繊維において、芯に充分な発色性を有する５−ソ
ジウムスルフオイソフタレート成分を高い含有率
で含む共重合ポリエステルを用い、鞘に少量の５
−ソジウムスルフオイソフタレート成分を含む低
発色性であるが高重合度の共重合ポリエステルを
用いることである。 In other words, the gist of the present invention is to use a copolyester containing a high content of 5-sodium sulfoisophthalate component with sufficient color development in the core and a small amount of 5-sodium sulfoisophthalate in the sheath.
- Using a copolymerized polyester containing a sodium sulfoisophthalate component and having low color development but a high degree of polymerization.
本発明は、かかる構成により、意外にも発色性
が損われず、耐フロステイング性に優れ、しかも
前述の高重合度ホモポリマーを芯に用いた極細複
合繊維に劣らぬ強度を有する繊維が得られたので
ある。 With this structure, the present invention surprisingly provides a fiber that does not impair color development, has excellent frosting resistance, and has strength comparable to that of the ultrafine composite fiber using the aforementioned highly polymerized homopolymer as the core. It was done.
なお、本発明者らの検討過程において、単にフ
ロステイングだけを改善するのみであれば以下の
２手段でも有効であることを確認した。 In the process of investigation, the inventors of the present invention have confirmed that the following two methods are also effective if only the frosting is to be improved.
芯成分として、高重合度ホモポリマーに少量
のカチオン可染共重合体を混合添加したものを
用いる。 As the core component, a mixture of a high degree of polymerization homopolymer and a small amount of a cationic dyeable copolymer is used.
芯成分として、少量の５−ソジウムスルフオ
イソフタレート成分を共重合したポリエステル
を用いる。 A polyester copolymerized with a small amount of 5-sodium sulfoisophthalate component is used as the core component.
しかし、は製糸操業性が極めて不安定である
こと、また、については、５−ソジウムスルフ
オイソフタレート成分が共重合されたポリエステ
ルは、金属架橋反応によると推定される理由のた
め異常に溶融粘度がアツプする。このため鞘成分
の補強効果を有するほどの高重合度化したポリマ
ーの紡糸が困難である。また芯成分に多少の高重
合度化したポリマーを用いても予期したほどの効
果も得られない。 However, the silk-spinning operation is extremely unstable, and the polyester copolymerized with the 5-sodium sulfoisophthalate component melts abnormally due to a reason presumed to be due to a metal crosslinking reaction. Viscosity increases. For this reason, it is difficult to spin a polymer whose degree of polymerization is high enough to have a reinforcing effect on the sheath component. Moreover, even if a polymer with a somewhat high degree of polymerization is used as the core component, the expected effect cannot be obtained.
結局ホモポリマーを用いる場合に比べて複合繊
維の強度をかかる方式で改善することは極めて困
難であることが判明したのである。 In the end, it was found that it is extremely difficult to improve the strength of composite fibers by such a method compared to the case where a homopolymer is used.
本発明は、従来技術の延長線上で把えた場合、
常識的にはまず発色性を得るために高発色性成分
を繊維外周に多く露出させ、強度補強の目的のた
め高重合度成分を繊維内部に置くことが発色性お
よび補強効果のバランスの点から必要不可欠であ
るように予想されるし、また、実際この方法で対
応してきたが、先にも述べた通り、かかる組合せ
では双方の目的を満足する結果は得られない。 When viewed as an extension of the prior art, the present invention has the following features:
Common sense suggests that in order to achieve color development, a large amount of highly color-forming components should be exposed on the outer periphery of the fiber, and that high-polymerization components should be placed inside the fiber for the purpose of reinforcing strength, in order to achieve a good balance between color development and reinforcing effect. Although this is expected to be indispensable, and this method has actually been used, as mentioned earlier, such a combination does not achieve a result that satisfies both objectives.
本発明者らは発想を全く逆転させて検討した結
果、ある条件下において、発色性の低い成分を外
側の鞘成分にもつてきても発色性は損われず、む
しろ繊維強度その他の点で優れたものが得られる
ことを確認したのである。 The inventors of the present invention completely reversed their thinking and investigated the results, and found that under certain conditions, even if a component with low coloring property was added to the outer sheath component, the coloring property would not be impaired, but rather it would be superior in terms of fiber strength and other aspects. It was confirmed that what was obtained was obtained.
本発明で言う芯鞘型構造とは、第１図に例示す
るような断面構造であつて、これらに限定される
ものではなく、この他芯鞘形状が、円形、多角形
など種々用いることができる。 The core-sheath type structure referred to in the present invention is a cross-sectional structure as illustrated in FIG. 1, and is not limited to this. In addition, various core-sheath shapes such as circular and polygonal shapes may be used. can.
また、芯鞘型の断面を第１図のような同心配置
のみでなく偏心配置とすることも可能であり、こ
の場合には、繊維の収縮による捲縮発生の効果も
得られる。 Further, the cross section of the core-sheath type can be arranged not only concentrically as shown in FIG. 1 but also eccentrically, and in this case, the effect of crimping due to contraction of the fibers can also be obtained.
本発明の芯鞘型複合繊維は、例えば３成分紡糸
方法により第２図に示すような芯鞘型の島を有す
る海島型繊維を紡糸し、延伸した御、海成分を除
去することにより得られる。 The core-sheath type composite fiber of the present invention can be obtained by, for example, spinning a sea-island type fiber having core-sheath type islands as shown in FIG. 2 using a three-component spinning method, drawing it, and removing the sea component. .
本発明において芯成分は、エチレンテレフタレ
ート単位またはブチレンテレフタレート単位を主
体とするポリマーに５−ソジウムスルフオイソフ
タレート成分単位が全酸成分単位の３モル％以上
含有されている共重合物とすることが必要であ
る。５−ソジウムスルフオイソフタレート成分単
位の含有率が３モル％未満であると、極細繊維と
した場合には低繊度ゆえの発色性低下を償うに足
る高発色性が達成し難い。 In the present invention, the core component is a copolymer containing 5-sodium sulfoisophthalate component units in a proportion of 3 mol% or more based on the total acid component units in a polymer mainly composed of ethylene terephthalate units or butylene terephthalate units. is necessary. If the content of the 5-sodium sulfoisophthalate component unit is less than 3 mol %, it is difficult to achieve high coloring properties sufficient to compensate for the decrease in coloring properties due to the low fineness when ultrafine fibers are used.
また、芯成分に用いるポリマーの極限粘度が低
過ぎる場合には、高重合度ポリエステル共重合体
の鞘で補強された複合繊維となしても充分な強度
が得られない。このため、芯成分の極限粘度は
0.3以上とすることが好ましく、0.35以上とすれ
ば特に好ましい。但し、目的によつてはこの範囲
に限定されるものではない。 Furthermore, if the intrinsic viscosity of the polymer used for the core component is too low, sufficient strength cannot be obtained even if the composite fiber is reinforced with a sheath of a highly polymerized polyester copolymer. Therefore, the intrinsic viscosity of the core component is
It is preferably 0.3 or more, and particularly preferably 0.35 or more. However, depending on the purpose, it is not limited to this range.
更に本発明においては、鞘成分として、５−ソ
ジウムスルフオイソフタレート成分単位が、芯成
分より少ない割合で共重合されているところの、
ポリエチレンテレフタレートまたはポリブチレン
テレフタレートを主体とする共重合体を用いるこ
とが特に重要である。 Furthermore, in the present invention, 5-sodium sulfoisophthalate component units are copolymerized as a sheath component in a smaller proportion than the core component.
It is particularly important to use copolymers based on polyethylene terephthalate or polybutylene terephthalate.
鞘成分に５−ソジウムスルフオイソフタレート
成分単位が少量重合されることにより、芯成分の
有する高い発色性を十分に発揮させることが可能
となり、本発明の複合繊維全体としての発色性を
極めて高いものとすることができるのである。本
発明において、比較的発色性の低い鞘成分によ
り、高発色性の芯成分が被覆されているにもかか
わらず、繊維全体としての発色性が高いものとな
つている原因については、現在のところまだ充分
には解明されていないが、５−ソジウムスルフオ
イソフタレート成分単位が少量でも共重合される
ことにより、鞘成分が染料分子にとつて透過し易
い微細構造を持つようになつていること、重合割
合の割には内側の高発色性成分の厚さ（径）が大
きくなるため実質的発色効果が得られるのではな
いかと想像される。 By polymerizing a small amount of 5-sodium sulfoisophthalate component units in the sheath component, it becomes possible to fully exhibit the high coloring property of the core component, and the coloring property of the composite fiber of the present invention as a whole is extremely improved. It can be made high. In the present invention, although the core component with high coloring property is covered with the sheath component with relatively low coloring property, the reason why the coloring property of the fiber as a whole is high is currently unknown. Although it is not fully understood yet, by copolymerizing even a small amount of 5-sodium sulfoisophthalate component units, the sheath component has a fine structure that is easily permeable to dye molecules. In particular, since the thickness (diameter) of the inner highly color-forming component is large in proportion to the polymerization ratio, it is thought that a substantial color-forming effect can be obtained.
鞘成分ポリマーに対する５−ソジウムスルフオ
イソフタレート成分単位の共重合比率があまり高
くなると、前述のように溶融粘度の上昇が障害と
なつて高重合度化が困難となり、複合繊維全体と
して強度の低下を来たすことになる。従つて、上
記共重合体の共重合比率は芯成分より低い割合と
して溶融粘度の上昇を抑えつつ、ポリエチレンテ
レフタレート系では極限粘度0.4以上、ポリブチ
レンテレフタレート系では極限粘度0.5以上とい
う、高重合度領域のポリマーを用いるのが好まし
い。なお、極限粘度は25℃でオルソクロロフエノ
ールを溶剤として測定したものとする。 If the copolymerization ratio of 5-sodium sulfoisophthalate component units to the sheath component polymer is too high, the increase in melt viscosity becomes an obstacle as described above, making it difficult to achieve a high degree of polymerization, and the strength of the composite fiber as a whole decreases. This will cause a decline. Therefore, the copolymerization ratio of the above copolymer is set to be lower than that of the core component to suppress an increase in melt viscosity, while maintaining a high degree of polymerization with an intrinsic viscosity of 0.4 or more for polyethylene terephthalate and 0.5 or more for polybutylene terephthalate. It is preferred to use a polymer of Note that the intrinsic viscosity is measured at 25°C using orthochlorophenol as a solvent.
本発明に用いるポリマーの極限粘度の上限は、
溶融粘度上昇により重合・紡糸技術の困難さが増
大することによつて、おのずから決まつてくる。 The upper limit of the intrinsic viscosity of the polymer used in the present invention is
This is naturally determined by the increasing difficulty of polymerization and spinning techniques due to the increase in melt viscosity.
本発明の繊維の際立つた特長の一つとして、そ
の繊維強度の高さが挙げられる。これは本発明の
繊維において、芯成分と鞘成分を逆転配置した構
造を有する繊維では達成できないレベルのもので
あり、意外な効果の一つである。この原因も明ら
かではないが、複合紡糸口金から紡出された未延
伸糸における、芯成分と鞘成分の分子配向状態
の、何らかの差異が関係しているものと思われ
る。 One of the outstanding features of the fiber of the present invention is its high fiber strength. This is one of the unexpected effects of the fiber of the present invention, which is at a level that cannot be achieved with fibers having a structure in which the core component and sheath component are arranged in reverse. Although the cause of this is not clear, it seems to be related to some kind of difference in the molecular orientation state of the core component and the sheath component in the undrawn yarn spun from the composite spinneret.
本発明の繊維において、芯成分と鞘成分との重
量比率は、発色性と強度のバランスによつて決め
るのが適当であり、90／10〜40／60の範囲が特に
好ましいが、目的あるいは繊維デニールによつて
はこれに限定されるものではない。特に、繊維デ
ニールが小さくなると表面反射が増大して発色性
が著しく低下するので、これをカバーするために
芯と鞘の重量比率だけではなくて、鞘の厚さその
ものに着目するのが有効な場合もあり、厚さ2μ
ｍ以下とするのが好ましく、1μｍ以下とすれば
特に好ましい。 In the fiber of the present invention, the weight ratio of the core component to the sheath component is appropriately determined depending on the balance between color development and strength, and is particularly preferably in the range of 90/10 to 40/60. The denier is not limited to this. In particular, as the fiber denier decreases, surface reflection increases and coloring performance decreases significantly, so in order to overcome this problem, it is effective to focus not only on the weight ratio of the core and sheath, but also on the thickness of the sheath itself. In some cases, the thickness is 2μ
It is preferable to set it as below m, and it is especially preferable to set it as below 1 micrometer.
なお、本発明の繊維において用いるポリマー
は、芯成分、鞘成分のいずれも、エチレンテレフ
タレート単位またはブチレンテレフタレート単位
を主体とし、これに一定量の５−ソジウムスルフ
オイソフタレート単位を共重合したものである
が、目的により他の成分をも共重合してよい。例
えば、少量のポリエチレングリコールを共重合す
ることにより、溶融粘度の上昇を抑制しつつ極限
粘度を高めて繊維強度をアツプできる上、繊維構
造が弛緩するため、染着座席の有効利用率も大巾
に高まる。 The polymer used in the fiber of the present invention is one in which both the core component and the sheath component are mainly composed of ethylene terephthalate units or butylene terephthalate units, which are copolymerized with a certain amount of 5-sodium sulfoisophthalate units. However, other components may also be copolymerized depending on the purpose. For example, by copolymerizing a small amount of polyethylene glycol, it is possible to increase the intrinsic viscosity and increase fiber strength while suppressing the increase in melt viscosity, and because the fiber structure is relaxed, the effective utilization rate of the dyed sheet can be greatly increased. It increases.
また、本発明の繊維の特徴のうち、その高発色
性は特に0.5デニール以下の極細領域において顕
著である。ここは、通常のポリエステル繊維が、
表面反射による著しい発色性低下を示す領域であ
る。 Furthermore, among the characteristics of the fiber of the present invention, its high color development is particularly remarkable in the ultrafine region of 0.5 denier or less. Here, ordinary polyester fiber is
This is a region showing a significant decrease in color development due to surface reflection.
一方、本発明の繊維の高強度効果および耐フロ
ステイング性は、極細領域に限らず、通常デニー
ル領域においても得られる。 On the other hand, the high strength effect and frosting resistance of the fibers of the present invention are obtained not only in the ultra-fine region but also in the normal denier region.
以下、実施例によつて本発明を更に詳しく説明
する。
Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例 １
３成分紡糸機により、第２図に示すような断面
を持つ繊維の紡糸を行なつた。各ポリマーの組成
および紡糸条件は以下の通りである。Example 1 A fiber having a cross section as shown in FIG. 2 was spun using a three-component spinning machine. The composition and spinning conditions of each polymer are as follows.
Ａ成分：５−ソジウムスルフオイソフタレート単
位を全酸成分単位の5.2モル％共重合したポリ
エチレンテレフタレート。Component A: Polyethylene terephthalate copolymerized with 5-sodium sulfoisophthalate units in an amount of 5.2 mol% based on the total acid component units.
極限粘度0.42
Ｂ成分：５−ソジウムスルフオイソフタレート単
位を全酸成分単位の2.5モル％共重合したポリ
エチレンテレフタレート。Intrinsic viscosity 0.42 Component B: Polyethylene terephthalate copolymerized with 5-sodium sulfoisophthalate units in an amount of 2.5 mol% based on the total acid component units.
極限粘度0.59
Ｃ成分：ポリスチレン
Ａ：Ｂ：Ｃの重量比率＝37：20：43
紡糸温度：285℃
引取速度：1250ｍ／分
得られた未延伸糸を液浴加熱２段で3.1倍に延
伸した。Intrinsic viscosity 0.59 Component C: Polystyrene Weight ratio of A:B:C = 37:20:43 Spinning temperature: 285°C Take-up speed: 1250 m/min The obtained undrawn yarn was stretched 3.1 times in two stages with liquid bath heating. .
延伸された複合繊維をトリクロルエチレンで洗
浄し、Ｃ成分を除去した。しかる後、強度を測定
したところ、3.6ｇ／ｄと高強力であつた。なお、
このときの芯鞘構造の繊維の単糸織度は0.17dで
あつた。 The drawn composite fiber was washed with trichlorethylene to remove the C component. After that, the strength was measured and found to be as high as 3.6 g/d. In addition,
The single yarn weave of the core-sheath fiber at this time was 0.17d.
また、延伸された複合繊維に捲縮処理を施した
後、カツトし、得られた原綿を用いて、人工皮革
製造の公知の方法に従い、ウエブ形成、ニードル
パンチ、収縮、PVA付与、トリクロルエチレン
洗浄、ポリウレタン付与、立毛処理を行ない、黒
系のカチオン染料にて120℃で染色したところ、
濃い黒色で、高発色性を有し風合・外観・タツチ
の優れたスウエード調シートを得た。 In addition, the drawn composite fibers are crimped and cut, and the resulting raw cotton is used to form a web, needle punch, shrink, apply PVA, and wash with trichlorethylene according to known methods for manufacturing artificial leather. , applied polyurethane, treated with raised hair, and dyed with black cationic dye at 120℃.
A suede-like sheet with deep black color, high color development, and excellent texture, appearance, and touch was obtained.
このスウエード調シートで作業ズボンを作り、
500時間の着用テストを行なつたが、ズボンのど
の部位にもフロステイングの発生は見られなかつ
た。 I made work pants using this suede-like sheet.
After 500 hours of wear testing, no frost staining was observed on any part of the pants.
比較例 １
実施例１におけるＡ成分を極限粘度0.85のポリ
エチレンテレフタレートに置き替え、Ｂ成分を実
施例１におけるＡ成分に置き替えて、他の条件は
実施例１と同一で紡糸・延伸・スウエード調シー
ト作製を行なつた。このスウエード調シートで実
施例１と同様の着用テストを行なつたところ、着
用開始後100時間で裾に、200時間でポケツト口付
近にフロステイングが発生した。Comparative Example 1 The A component in Example 1 was replaced with polyethylene terephthalate with an intrinsic viscosity of 0.85, the B component was replaced with the A component in Example 1, and the other conditions were the same as in Example 1, spinning, stretching, and suede-like. The sheet was manufactured. When this suede-like sheet was subjected to the same wearing test as in Example 1, frosting occurred on the hem after 100 hours of wearing and near the pocket opening after 200 hours.
比較例 ２
実施例１におけるＡ・Ｂ成分を互いに芯鞘配置
で置き替え、他の条件は実施例１と同一で紡糸を
行なつた。得られた未延伸糸を実施例１と同一条
件で延伸しようとしたところ、合計の延伸倍率が
2.90倍を超えると延伸中の糸切れが頻繁に発生
し、安定は延伸が続けられなかつた。合計の延伸
倍率を2.80倍として得られた複合繊維をトリクロ
ルエチレンで洗浄し、Ｃ成分を除去して強度を測
定した結果、2.9ｇ／ｄと低強度であつた。Comparative Example 2 The A and B components in Example 1 were replaced with each other in a core-sheath arrangement, and spinning was carried out under the same conditions as in Example 1 except for the above. When the obtained undrawn yarn was tried to be stretched under the same conditions as in Example 1, the total stretching ratio was
When it exceeded 2.90 times, thread breakage occurred frequently during drawing, and stable drawing could not be continued. The composite fiber obtained by setting the total draw ratio to 2.80 times was washed with trichlorethylene to remove the C component, and its strength was measured. As a result, the strength was as low as 2.9 g/d.
比較例 ３
比較例１における芯成分と鞘成分とを互いに置
き替え、他の条件は同一で紡糸・延伸・シート作
製を行なつた。得られたシートは発色性が低く、
カチオン染料では濃色に染まらなかつた。Comparative Example 3 The core component and sheath component in Comparative Example 1 were replaced with each other, and spinning, stretching, and sheet production were performed under the same conditions. The obtained sheet has low color development,
Cationic dyes did not dye the material deep.
本発明の複合繊維は、発色性、耐フロステイン
グ性に優れ、しかも高強度である。その上、５−
ソジウムスルフオイソフタレート単位の共重合比
率の比較的高い成分が繊維表面に露出しているも
のに比べ、ポリウレタン付与工程などでしばしば
問題となつているジメチルフオルムアミドとCa、
Mg等の金属イオンの作用による発色性低下に対
しても、高い抵抗性を示す。更にまた、染色時の
高温かつ強い酸性条件での処理により、５−ソジ
ウムスルフオイソフタレート単位の共重合比率が
比較的高いポリエステル繊維ではしばしば発生す
る、染色処理後の経時的強度低下も大きく改善さ
れる。
The composite fiber of the present invention has excellent color development and frosting resistance, and also has high strength. Moreover, 5-
Compared to those in which a component with a relatively high copolymerization ratio of sodium sulfoisophthalate units is exposed on the fiber surface, dimethylformamide and Ca, which often cause problems in polyurethane application processes, etc.
It also shows high resistance to deterioration in color development due to the action of metal ions such as Mg. Furthermore, due to the high temperature and strongly acidic conditions during dyeing, there is a large decrease in strength over time after the dyeing process, which often occurs with polyester fibers that have a relatively high copolymerization ratio of 5-sodium sulfoisophthalate units. Improved.
第１図は、本発明に係る芯鞘型構造の複合繊維
断面の好ましい例を示す。第２図は、本発明に係
る芯鞘型極細複合繊維を得るための三成分複合繊
維断面の例を示す。
Ａ：芯成分、Ｂ：鞘成分、Ｃ：海成分。
FIG. 1 shows a preferred example of a cross section of a composite fiber having a core-sheath type structure according to the present invention. FIG. 2 shows an example of a cross section of a three-component conjugate fiber for obtaining a core-sheath type ultrafine conjugate fiber according to the present invention. A: core component, B: sheath component, C: sea component.
Claims (1)
テレフタレート単位またはブチレンテレフタレー
ト単位を主体とするポリマーに５−ソジウムスル
フオイソフタレート成分単位が全酸成分単位の３
モル％以上含有されている共重合体であり、鞘成
分はポリエチレンテレフタレートまたはポリブチ
レンテレフタレートを主体とするポリマーに５−
ソジウムスルフオイソフタレート成分単位が芯成
分より少なく含有されてなる共重合体であること
を特徴とする芯鞘型複合繊維。1 In the core-sheath type composite fiber, the core component is a polymer mainly composed of ethylene terephthalate units or butylene terephthalate units, and 5-sodium sulfoisophthalate component units account for 3 of the total acid component units.
It is a copolymer containing mol% or more, and the sheath component is a polymer mainly composed of polyethylene terephthalate or polybutylene terephthalate.
A core-sheath type composite fiber characterized by being a copolymer containing less sodium sulfoisophthalate component units than the core component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377386A JPS6342916A (en) | 1986-08-05 | 1986-08-05 | Sheath-core type conjugated fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18377386A JPS6342916A (en) | 1986-08-05 | 1986-08-05 | Sheath-core type conjugated fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342916A JPS6342916A (en) | 1988-02-24 |
| JPH0373656B2 true JPH0373656B2 (en) | 1991-11-22 |
Family
ID=16141697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18377386A Granted JPS6342916A (en) | 1986-08-05 | 1986-08-05 | Sheath-core type conjugated fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342916A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105834A (en) | 2015-12-10 | 2017-08-29 | Ykk株式会社 | The manufacture method and manufacture device of Woven slide fastener tooth chain belt |
| EP3387939A4 (en) | 2015-12-10 | 2019-08-14 | YKK Corporation | Apparatus for manufacturing stringer for woven slide fastener |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616165A (en) * | 1984-06-15 | 1986-01-11 | アイン・エンジニアリング株式会社 | Formation of inorganic board |
| JPS6175873A (en) * | 1984-09-17 | 1986-04-18 | 東レ株式会社 | Production of modified polyester fiber |
-
1986
- 1986-08-05 JP JP18377386A patent/JPS6342916A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616165A (en) * | 1984-06-15 | 1986-01-11 | アイン・エンジニアリング株式会社 | Formation of inorganic board |
| JPS6175873A (en) * | 1984-09-17 | 1986-04-18 | 東レ株式会社 | Production of modified polyester fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342916A (en) | 1988-02-24 |
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