JPH09256223A - Split type conjugate fiber - Google Patents
Split type conjugate fiberInfo
- Publication number
- JPH09256223A JPH09256223A JP6247396A JP6247396A JPH09256223A JP H09256223 A JPH09256223 A JP H09256223A JP 6247396 A JP6247396 A JP 6247396A JP 6247396 A JP6247396 A JP 6247396A JP H09256223 A JPH09256223 A JP H09256223A
- Authority
- JP
- Japan
- Prior art keywords
- component
- fiber
- conjugate fiber
- alkali
- split type
- 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.)
- Granted
Links
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- Multicomponent Fibers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アルカリ水溶液処
理により、分割、表面改質可能な分割型複合繊維に関す
るものである。TECHNICAL FIELD The present invention relates to a splittable conjugate fiber which can be split and surface-modified by treatment with an aqueous alkaline solution.
【０００２】[0002]
【従来の技術】従来、極細繊維あるいは特殊異形断面繊
維を得る目的で様々な分割型複合繊維が提案されてい
る。例えば、アルカリ難溶性成分をアルカリ易溶性成分
で分割した複合繊維がある。また、アルカリを使用する
ことなく、水分の存在下で機械的衝撃を与えるだけで分
割することのできる分割型複合繊維として、溶融粘度の
異なるポリエステルからなり、高溶融粘度の方の成分に
ポリアルキレングリコール類を配合した吸水膨潤する性
質を有するものを用いた複合繊維が提案されている（特
開平６−2221号）。さらに、ポリエステルとポリアミド
のような相溶性のない成分を組み合わせ、機械的衝撃に
より両成分の界面で剥離させて分割するようにした分割
型複合繊維も提案されている。2. Description of the Related Art Conventionally, various splittable conjugate fibers have been proposed for the purpose of obtaining ultrafine fibers or fibers having a special irregular cross section. For example, there is a composite fiber in which a poorly soluble alkali component is divided by a readily soluble alkali component. Further, as a splittable conjugate fiber that can be split only by giving a mechanical impact in the presence of water without using an alkali, it is composed of polyesters having different melt viscosities, and polyalkylene is used as a component having a higher melt viscosity. A composite fiber using a mixture of glycols and having a property of absorbing water and swelling has been proposed (JP-A-6-2221). Furthermore, a splittable conjugate fiber has also been proposed in which incompatible components such as polyester and polyamide are combined and separated at the interface between the two components by mechanical impact so as to be split.
【０００３】しかし、これらの複合繊維は、特定のポリ
マーを組み合わせることが必要であったり、分割後得ら
れる繊維が２成分の混合繊維となり、汎用性に乏しいと
いう問題があり、しかも表面に微細孔を有するような表
面改質がされず、分割後の繊維は吸湿性、深色性等に劣
るものとなるという問題があった。However, these conjugate fibers have a problem that they need to be combined with a specific polymer, or the fibers obtained after the division are mixed fibers of two components, and thus they are poor in versatility. However, there is a problem that the fibers after splitting are inferior in hygroscopicity, bathochromicity, etc.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、一回のアル
カリ水溶液処理によって容易に分割され、かつ繊維表面
に微細孔を有するポリアミド繊維が得られる分割型複合
繊維を提供しようとするものである。DISCLOSURE OF THE INVENTION The present invention is intended to provide a splittable conjugate fiber which can be easily split by a single treatment with an aqueous alkali solution to obtain a polyamide fiber having fine pores on the fiber surface. .
【０００５】[0005]
【課題を解決するための手段】本発明は、上記の課題を
解決するもので、アルカリ易溶性ポリエステルＡからな
る成分１と、アルカリ易溶性ポリエステルＡと熱可塑性
ポリアミドＢとの混合重量比Ａ／Ｂ＝５／95〜30／70の
混合物からなる成分２とから構成された複合繊維であ
り、成分２が成分１によって分割されていることを特徴
とする分割型複合繊維を要旨とするものである。Means for Solving the Problems The present invention is to solve the above-mentioned problems and comprises a component 1 comprising an alkali-soluble polyester A and a mixing weight ratio A / of the alkali-soluble polyester A and the thermoplastic polyamide B. B = 5/95 to 30/70 A composite fiber composed of a component 2 consisting of a mixture, wherein the component 2 is divided by the component 1, and the gist is a splittable composite fiber. is there.
【０００６】[0006]
【発明の実施の形態】以下、本発明について詳細に説明
する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
【０００７】本発明の複合繊維において、成分１及び成
分２に用いられるアルカリ易溶性ポリエステルＡとして
は、アルカリ易溶性ポリエステルとして公知のポリエス
テルを用いることができ、例えば、エチレンテレフタレ
ートを主たる繰り返し単位とし、イソフタル酸、ポリア
ルキレングリコール、スルホイソフタル酸アルカリ金属
塩等を共重合した共重合ポリエステルを挙げることがで
きる。In the conjugate fiber of the present invention, as the alkali-soluble polyester A used in the components 1 and 2, polyesters known as alkali-soluble polyesters can be used. For example, ethylene terephthalate is the main repeating unit, Examples thereof include copolymerized polyesters obtained by copolymerizing isophthalic acid, polyalkylene glycol, sulfoisophthalic acid alkali metal salt and the like.
【０００８】一方、成分２に用いられる熱可塑性ポリア
ミドＢとしては、ナイロン６、ナイロン６６、ナイロン
４６、ナイロン11、ナイロン12、ナイロン MXD６ (ポリ
メタキシリレンアジパミド）、ナイロン４等のホモポリ
マー及びこれらを主体とする共重合体もしくは混合物が
好ましく用いられる。On the other hand, as the thermoplastic polyamide B used in the component 2, homopolymers such as nylon 6, nylon 66, nylon 46, nylon 11, nylon 12, nylon MXD6 (polymeta-xylylene adipamide), nylon 4 and the like, and Copolymers or mixtures mainly composed of these are preferably used.
【０００９】また、本発明の複合繊維において、成分２
のアルカリ易溶性ポリエステルＡと熱可塑性ポリアミド
Ｂとの混合重量比を５／95〜30／70とすることが必要で
ある。アルカリ易溶性ポリエステルＡの割合がこれより
少ないと、アルカリ水溶液処理後に得られる繊維に微細
孔が形成されない。また、この割合があまり多いと、ア
ルカリ水溶液処理後に得られる繊維の強度低下が著しく
なり、繊維の割れ、潰れ等が生じ、繊維としての実用性
が失われる。Further, in the composite fiber of the present invention, the component 2
It is necessary to set the mixing weight ratio of the easily soluble alkali polyester A and the thermoplastic polyamide B of 5/95 to 30/70. When the proportion of the alkali-soluble polyester A is less than this, fine pores are not formed in the fiber obtained after the treatment with the alkaline aqueous solution. On the other hand, if this ratio is too large, the strength of the fiber obtained after the treatment with the alkaline aqueous solution will be remarkably reduced, and the fiber will be cracked, crushed, etc., and the practicality of the fiber will be lost.
【００１０】また、本発明の繊維の複合形態は、成分２
が成分１によって分割されている形態であれば特に限定
されず、例えば、図１ (a)、(b) に示すように成分２が
繊維表面に露出した形態、あるいは図１ (c)に示すよう
に成分２が繊維表面に露出していない形態 (海島型構
造) であってもよい。図１ (a)〜(c) において、１は成
分１、２は成分２を示す。Further, the composite form of the fiber of the present invention has a component 2
It is not particularly limited as long as it is divided by the component 1. For example, as shown in FIGS. 1 (a) and 1 (b), the component 2 is exposed on the fiber surface, or as shown in FIG. 1 (c). As described above, the component 2 may not be exposed on the fiber surface (sea-island structure). In FIGS. 1 (a) to 1 (c), 1 indicates a component 1, and 2 indicates a component 2.
【００１１】成分１と成分２との複合割合は、円滑な複
合紡糸が可能な範囲で、成分１の割合が小さいほど好ま
しいが、通常は、重量比で成分１／成分２＝１／３前後
が適当である。The compounding ratio of the component 1 and the component 2 is preferably such that the smaller the ratio of the component 1 is within the range in which smooth composite spinning is possible, but usually, the weight ratio is about 1 / component 2 = 1/3. Is appropriate.
【００１２】本発明の複合繊維は、アルカリ易溶性ポリ
エステルＡと熱可塑性ポリアミドＢとを用いて、常法に
よって複合溶融紡糸し、延伸することによって製造する
ことができる。The conjugate fiber of the present invention can be produced by subjecting the alkali-soluble polyester A and the thermoplastic polyamide B to a composite melt spinning by a conventional method and stretching.
【００１３】成分１及び成分２のアルカリ易溶性ポリエ
ステルＡの溶出除去のためのアルカリ水溶液処理は、通
常、織編物にした状態で行われる。The aqueous alkaline solution treatment for elution of the alkali-soluble polyester A as the component 1 and the component 2 is usually carried out in a woven or knitted state.
【００１４】なお、本発明の繊維には、必要に応じて、
着色剤、酸化防止剤、艶消し剤等の添加剤、抗菌剤、消
臭剤等の機能性薬剤を含有させることができる。The fiber of the present invention may contain, if necessary,
Additives such as colorants, antioxidants and matting agents, and functional agents such as antibacterial agents and deodorants can be contained.
【００１５】[0015]
【作用】本発明の複合繊維をアルカリ水溶液で処理する
と、成分１が溶出除去されるため、極細繊維あるいは特
殊異形断面繊維となる。また、成分２中のアルカリ易溶
性ポリエステルＡも同時に溶出除去されるため、処理後
の繊維は多数の微細孔を有する表面改質繊維となる。When the composite fiber of the present invention is treated with an alkaline aqueous solution, the component 1 is eluted and removed, so that the fiber becomes an ultrafine fiber or a fiber having a special profile. Further, since the alkali-soluble polyester A in the component 2 is also eluted and removed at the same time, the treated fiber becomes a surface-modified fiber having many fine pores.
【００１６】[0016]
【実施例】次に、実施例により本発明を具体的に説明す
る。なお、実施例における測定、評価法は、次のとおり
である。 (1) ナイロン６の相対粘度 96％硫酸を溶媒とし、濃度１ｇ／dl、温度25℃で測定し
た。 (2) 強度及び伸度 島津製作所製オートグラフDSS-500 を用い、20℃、65％
RHの測定室で、試料長30cm、引張速度30cm／分の条件で
測定した。 (3) アルカリ減量率 複合繊維を用いて筒編みにした試料を、濃度40ｇ／l の
水酸化ナトリウム水溶液（浴比１：200)で、30分間煮沸
処理し、処理前後の重量を測定して減量率を算出した。 (4) アルカリ処理後の糸条の状態 アルカリ水溶液処理後の繊維の分割状態及び繊維表面の
状態を走査型電子顕微鏡で撮影、観察し、次の２段階で
評価した。 ○：繊維の分割及び繊維表面に微細孔群が確認できる。 ×：繊維の密着あるいは潰れがみられるか、繊維表面に
微細孔がみられない。EXAMPLES Next, the present invention will be described in detail with reference to examples. The measurement and evaluation methods in the examples are as follows. (1) Nylon 6 Relative Viscosity 96% sulfuric acid was used as a solvent, and the concentration was measured at 1 g / dl and a temperature of 25 ° C. (2) Strength and elongation Using Autograph DSS-500 manufactured by Shimadzu Corporation, 20 ℃, 65%
The measurement was carried out in a RH measuring room under the conditions of a sample length of 30 cm and a pulling speed of 30 cm / min. (3) Alkaline weight loss rate A sample knitted with composite fibers was boiled for 30 minutes in an aqueous sodium hydroxide solution with a concentration of 40 g / l (bath ratio 1: 200), and the weight before and after the treatment was measured. The weight loss rate was calculated. (4) State of yarn after alkali treatment The state of fiber division and the state of fiber surface after treatment with an alkaline aqueous solution were photographed and observed with a scanning electron microscope, and evaluated in the following two stages. ◯: Fiber division and micropore groups can be confirmed on the fiber surface. X: Adhesion or crushing of fibers is observed, or fine pores are not observed on the fiber surface.
【００１７】実施例１〜４、比較例１〜２ アルカリ易溶性ポリエステル成分Ａとして、５−ナトリ
ウムスルホイソフタル酸 2.5モル％及び分子量 6,000の
ポリエチレングリコール13.3重量％を共重合した共重合
ポリエチレンテレフタレート、熱可塑性ポリアミドＢと
して、相対粘度2.6のナイロン６を用いて、表１に示す
成分２のＡ／Ｂ混合重量比、成分１／成分２の複合重量
比で、図１ (a)に示す複合形態の複合繊維を製造した。
この際、紡糸温度を 265℃とし、36孔の紡糸口金を使用
し、溶融紡出した糸条を15℃の空気を吹き付けて冷却
し、油剤を付与した後、1300ｍ／分の速度で未延伸糸を
巻き取った。得られた未延伸糸を延伸機に供給し、供給
ローラと60℃の加熱ローラとの間で、延伸倍率 3.0倍で
延伸し、 100ｄ／36ｆの糸条を得た。糸条の糸質性能及
び評価結果を表１に示す。Examples 1 to 4 and Comparative Examples 1 to 2 As the alkali-soluble polyester component A, copolymerized polyethylene terephthalate obtained by copolymerizing 2.5 mol% of 5-sodium sulfoisophthalic acid and 13.3% by weight of polyethylene glycol having a molecular weight of 6,000, heat Using nylon 6 having a relative viscosity of 2.6 as the plastic polyamide B, the A / B mixed weight ratio of the component 2 and the composite weight ratio of the component 1 / component 2 shown in Table 1 have the composite form shown in FIG. 1 (a). A composite fiber was produced.
At this time, the spinning temperature was 265 ° C, a 36-hole spinneret was used, and the melt-spun yarn was blown with air at 15 ° C to cool it, and after applying an oil agent, it was undrawn at a speed of 1300 m / min. I wound up the thread. The obtained undrawn yarn was supplied to a drawing machine and drawn between a supply roller and a heating roller at 60 ° C. at a draw ratio of 3.0 to obtain a yarn of 100d / 36f. Table 1 shows the yarn quality performance of the yarn and the evaluation results.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】本発明によれば、一回のアルカリ水溶液
処理によって容易に分割され、かつ繊維表面に微細孔を
有するポリアミド繊維が得られる分割型複合繊維を安定
した紡糸性のもとに得ることができる。According to the present invention, a splittable conjugate fiber which can be easily split by a single treatment with an alkaline aqueous solution to obtain a polyamide fiber having fine pores on the fiber surface is obtained with stable spinnability. be able to.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の複合繊維の具体例を示す断面模式図で
ある。FIG. 1 is a schematic sectional view showing a specific example of the conjugate fiber of the present invention.
１ 成分１ ２ 成分２ 1 component 1 2 component 2
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山口 創 京都府宇治市宇治小桜23番地 ユニチカ株 式会社中央研究所内 (72)発明者 秋山 芳広 京都府宇治市宇治小桜23番地 ユニチカ株 式会社中央研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor So Yamaguchi 23 Uji Kozakura, Uji City, Kyoto Prefecture Unitika Central Research Institute (72) Inventor Yoshihiro Akiyama 23 Uji Kozakura Uji City, Kyoto Unitika Stock Company Central Research In-house
Claims (1)
成分１と、アルカリ易溶性ポリエステルＡと熱可塑性ポ
リアミドＢとの混合重量比Ａ／Ｂ＝５／95〜30／70の混
合物からなる成分２とから構成された複合繊維であり、
成分２が成分１によって分割されていることを特徴とす
る分割型複合繊維。1. A component 1 comprising an alkali-soluble polyester A and a component 2 comprising a mixture of an alkali-soluble polyester A and a thermoplastic polyamide B in a mixing weight ratio A / B = 5/95 to 30/70. Is a composite fiber composed of
Splittable conjugate fiber characterized in that component 2 is split by component 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06247396A JP3614555B2 (en) | 1996-03-19 | 1996-03-19 | Split type composite fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06247396A JP3614555B2 (en) | 1996-03-19 | 1996-03-19 | Split type composite fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09256223A true JPH09256223A (en) | 1997-09-30 |
| JP3614555B2 JP3614555B2 (en) | 2005-01-26 |
Family
ID=13201204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06247396A Expired - Fee Related JP3614555B2 (en) | 1996-03-19 | 1996-03-19 | Split type composite fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3614555B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988976B1 (en) * | 2005-09-22 | 2010-10-20 | 주식회사 효성 | Polyester/Polyamide Splittable Conjugate Fiber and Manufacturing Method thereof |
-
1996
- 1996-03-19 JP JP06247396A patent/JP3614555B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988976B1 (en) * | 2005-09-22 | 2010-10-20 | 주식회사 효성 | Polyester/Polyamide Splittable Conjugate Fiber and Manufacturing Method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3614555B2 (en) | 2005-01-26 |
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