JPH08226018A - Conjugated fiber - Google Patents
Conjugated fiberInfo
- Publication number
- JPH08226018A JPH08226018A JP7053522A JP5352295A JPH08226018A JP H08226018 A JPH08226018 A JP H08226018A JP 7053522 A JP7053522 A JP 7053522A JP 5352295 A JP5352295 A JP 5352295A JP H08226018 A JPH08226018 A JP H08226018A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- polypropylene
- spinning
- weight
- composite 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 63
- -1 polypropylene Polymers 0.000 claims abstract description 23
- 239000004743 Polypropylene Substances 0.000 claims abstract description 22
- 229920001155 polypropylene Polymers 0.000 claims abstract description 20
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims description 41
- 238000002074 melt spinning Methods 0.000 abstract description 5
- 239000002759 woven fabric Substances 0.000 abstract description 3
- 238000009987 spinning Methods 0.000 description 31
- 238000000034 method Methods 0.000 description 20
- NUHSROFQTUXZQQ-UHFFFAOYSA-N isopentenyl diphosphate Chemical compound CC(=C)CCO[P@](O)(=O)OP(O)(O)=O NUHSROFQTUXZQQ-UHFFFAOYSA-N 0.000 description 14
- 238000009940 knitting Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PDBMBIIQRMIHJS-UHFFFAOYSA-L [Cl-].[Cl-].C(C)(C)[Zr+2]C1=C(C=CC=2C3=CC=CC=C3CC1=2)C1C=CC=C1 Chemical compound [Cl-].[Cl-].C(C)(C)[Zr+2]C1=C(C=CC=2C3=CC=CC=C3CC1=2)C1C=CC=C1 PDBMBIIQRMIHJS-UHFFFAOYSA-L 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 229940121375 antifungal agent Drugs 0.000 description 2
- 239000003429 antifungal agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000006224 matting agent Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 1
- PGOXJIBERNIRFR-UHFFFAOYSA-L [Cl-].[Cl-].C(C)(C)[Hf+2]C1=C(C=CC=2C3=CC=CC=C3CC1=2)C1C=CC=C1 Chemical compound [Cl-].[Cl-].C(C)(C)[Hf+2]C1=C(C=CC=2C3=CC=CC=C3CC1=2)C1C=CC=C1 PGOXJIBERNIRFR-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 238000012685 gas phase polymerization Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011980 kaminsky catalyst Substances 0.000 description 1
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高捲縮複合繊維、フィラ
メント及びステープル、その複合繊維を含有する紡績糸
及び不織布及び編み織物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to highly crimped composite fibers, filaments and staples, spun yarns and nonwoven fabrics and knitted fabrics containing the composite fibers.
【０００２】[0002]
【従来の技術】高捲縮繊維は既に多く提案されている。
繊維に自己発現する捲縮を付与する方法はサイドバイサ
イド型の複合繊維が公知である。この複合繊維を製造す
るためには両成分の熱収縮率が異なり、かつ、両成分の
接着性が良いことが必要である。両成分の接着性が悪い
と分離し易い。例えばアクリル繊維の場合は第１成分の
アクリルと第２成分であるメチルアクリレートとの組成
を少し変えたものをサイドバイサイドに複合紡糸する方
法が公知である。この組成が大きく異なると分離してし
まう。また、ポリエチレンテレフタレート繊維の場合は
分子量の異なる両成分を複合する方法が公知である。2. Description of the Related Art Many highly crimped fibers have already been proposed.
A side-by-side type conjugate fiber is known as a method for imparting a crimp that self-expresses to the fiber. In order to produce this composite fiber, it is necessary that the two components have different heat shrinkage rates and that the two components have good adhesiveness. If both components have poor adhesiveness, they easily separate. For example, in the case of acrylic fibers, a method is known in which a composition in which the first component acrylic and the second component methyl acrylate are slightly different is subjected to side-by-side composite spinning. If the compositions differ greatly, they will separate. In the case of polyethylene terephthalate fiber, a method of combining both components having different molecular weights is known.
【０００３】ポリプロピレンの高捲縮繊維は例えば特開
平３−１６７３１４号公報に結晶性ポリプロピレンとポ
リプロピレンの共重合物との複合繊維が提案されてい
る。複合はサイドバイサイド型、偏芯した芯鞘型の例が
挙げられている。ポリプロピレンの共重合物はエチレ
ン、ブテン−１等の共重合物であり、融点が１２５℃以
上と記載されているが、詳細な製造方法の記載はなされ
ていない。また、捲縮数は１４個／インチの例が記載さ
れてあり、捲縮数が３０個／インチ以上の高捲縮複合繊
維とは言い難い。また、高捲縮数を与える方法も記載さ
れていない。また、特開平５−７８９１６号公報には９
２〜９７重量％のプロピレンと８〜３重量％のエチレン
とのランダム共重合ポリマーとポリプロピレンとの複合
繊維が提案されている。この複合繊維は捲縮数が６０個
／インチ以上であり、高捲縮複合繊維である。しかし、
この共重合ポリマーは重量平均分子量／数平均分子量の
値が制限されている。この値が大きすぎる、すなわち分
子量分布の幅が大きすぎると、紡糸時の冷却が困難とな
ると記載されている。これはランダム共重合体が結晶性
に乏しく、膠着し易いためである。従って、一般的な繊
維用のポリマーは総て結晶性ポリマーである。As a highly crimped polypropylene fiber, for example, a composite fiber of crystalline polypropylene and a copolymer of polypropylene has been proposed in JP-A-3-167314. Examples of the composite include a side-by-side type and an eccentric core-sheath type. The polypropylene copolymer is a copolymer of ethylene, butene-1 and the like and has a melting point of 125 ° C. or higher, but no detailed production method is described. Further, an example in which the number of crimps is 14 pieces / inch is described, and it cannot be said to be a highly crimped composite fiber having the number of crimps of 30 pieces / inch or more. Further, there is no description of a method for giving a high crimp number. Further, in Japanese Patent Application Laid-Open No. 5-78916, there is 9
Composite fibers of a random copolymer of 2-97 wt% propylene and 8-3 wt% ethylene and polypropylene have been proposed. This composite fiber has a crimp number of 60 pieces / inch or more, and is a highly crimped composite fiber. But,
This copolymer has a limited weight average molecular weight / number average molecular weight value. It is described that if this value is too large, that is, if the width of the molecular weight distribution is too large, cooling during spinning becomes difficult. This is because the random copolymer has poor crystallinity and tends to stick. Thus, all common fiber polymers are crystalline polymers.
【０００４】一方、新規なポリプロピレンの繊維として
特開平３−８２８１４号公報にシンジオタクチックペン
タッド分率が０．７以上の太さが１００００から０．１
デニールである繊維が提案されている。この繊維の特徴
は引張強度が大きいとされているが、実施例では３７０
デニールで４８０ｇと一般的なポリエチレンテレフタレ
ート繊維の強度３ｇ／デニールより遥かに小さい。ま
た、この提案には複合繊維の記載もなく、高捲縮繊維と
して用いる記載もない。On the other hand, as a novel polypropylene fiber, Japanese Unexamined Patent Publication (Kokai) No. 3-82814 discloses a fiber having a syndiotactic pentad fraction of 0.7 or more and a thickness of 10,000 to 0.1.
Fibers that are denier have been proposed. The characteristic of this fiber is that it has a high tensile strength, but in the example, 370
The denier is 480 g, which is much smaller than the strength of common polyethylene terephthalate fiber, 3 g / denier. In addition, there is no description of a composite fiber in this proposal, and there is no description of use as a highly crimped fiber.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は紡糸が
容易で、安価なポリプロピレン高捲縮繊維、およびそれ
からなる風合いの柔らかな不織布、編み織物を提供する
ものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a polypropylene highly crimped fiber which is easy to spin and is inexpensive, and a soft non-woven fabric and knitted fabric made of the same.
【０００６】[0006]
【課題を解決するための手段】本発明者らは安価なポリ
マーで柔軟性があり、曳糸性が良いポリマーとしてシン
ジオタクチックポリプロピレンを片側成分とするサイド
バイサイド型複合繊維の研究をし、本発明の完成に至っ
た。即ち、本発明の複合繊維はシンジオタクチックペン
タッド成分が５５重量％以上であるポリプロピレン（以
下、「ＳＰＰ］と略記する。）アイソタクチックペンタ
ッド成分が５５重量％以上であるポリプロピレン（以
下、「ＩＰＰ］と略記する。）のサイドバイサイド型複
合繊維である。DISCLOSURE OF THE INVENTION The present inventors have studied side-by-side type composite fibers containing syndiotactic polypropylene as one side component as a polymer which is an inexpensive polymer and is flexible and has good spinnability, and the present invention Was completed. That is, in the conjugate fiber of the present invention, a polypropylene having a syndiotactic pentad component of 55% by weight or more (hereinafter abbreviated as "SPP") a polypropylene having an isotactic pentad component of 55% by weight or more (hereinafter, Abbreviated as "IPP").
【０００７】一般的なポリプロピレンの融点は１６０℃
近辺である。このポリプロピレンはペンタッドのメチル
基が同一側にあるＩＰＰである。このポリプロピレンは
結晶性が高く、柔軟性に乏しい。一方、ＳＰＰは融点が
１４０℃近辺であり、結晶性ではあるが結晶化速度が小
さく、柔軟性が大きい。反面、ＳＰＰはゴムライクな性
質も示す。The melting point of general polypropylene is 160 ° C.
In the vicinity. This polypropylene is an IPP with the pentad methyl groups on the same side. This polypropylene has high crystallinity and poor flexibility. On the other hand, SPP has a melting point of around 140 ° C., and although it is crystalline, it has a low crystallization rate and high flexibility. On the other hand, SPP also shows rubber-like properties.
【０００８】ＳＰＰの製造方法は既にＪ．Ａ．Ｅｗｅｎ
らによって発見され、Ｊ．Ａｍ．Ｃｈｅｍ．Ｓｏｃ．，
１１０，６２５５（１９８９）で発表されている。これ
は非対称な遷移金属触媒とアルミノキサンからなる触媒
を用いる製造方法である。また、特開平２−４１３０３
号公報でも提案されている。例えば遷移金属触媒として
イソプロピル（シクロペンタジエニルー１ーフルオレニ
ル）ハフニウムジクロリド、イソプロピル（シクロペン
タジエニルー１ーフルオレニル）ジルコニウムジクロリ
ド等がある。またアルミノキサンとしては一般式がＲ−
（ＡｌＯ）ｎＡｌ−Ｒまたは環状（Ｒ−ＡｌＯ）ｎ、
（式中のＲは炭素数１〜３の炭化水素基を示す。）で示
される化合物であり、特にＲがメチル基でｎが５〜１０
のものが多く用いられる。The method for producing SPP is already described in J. A. Ewen
Discovered by J. et al. Am. Chem. Soc. ，
110 , 6255 (1989). This is a production method using an asymmetric transition metal catalyst and a catalyst composed of aluminoxane. In addition, JP-A-2-41303
It is also proposed in the Gazette. Examples of the transition metal catalyst include isopropyl (cyclopentadienyl-1-fluorenyl) hafnium dichloride and isopropyl (cyclopentadienyl-1-fluorenyl) zirconium dichloride. The general formula of aluminoxane is R-
(AlO) nAl-R or cyclic (R-AlO) n,
(R in the formula represents a hydrocarbon group having 1 to 3 carbon atoms), particularly R is a methyl group and n is 5 to 10
Many things are used.
【０００９】この触媒を用いたＳＰＰの重合方法は特に
制限がなく、溶液重合法、バルク重合法、気相重合法等
が用いられる。通常は加圧重合を行う。The SPP polymerization method using this catalyst is not particularly limited, and a solution polymerization method, a bulk polymerization method, a gas phase polymerization method or the like can be used. Usually, pressure polymerization is performed.
【００１０】本発明に用いるＳＰＰのシンジオタクチッ
クなペンタッド成分率は13Ｃ−ＮＭＲ等によって、測定
することができる。また、ＩＲとＤＳＣにて簡便には推
定することができる。このＳＰＰはシンジオタクチック
なペンタッド成分率は５５重量％以上含まれている。５
５重量％未満では捲縮率が低すぎる。好ましくは６０重
量％以上である。また、可紡性の点で好ましくは５５〜
７０重量％である。このＳＰＰは結晶性のポリマーであ
る。重合条件によってもＳＰＰのシンジオタクチックな
ペンタッド成分率を変化させることが出来る。また、Ｉ
ＰＰとのポリブレンドによっても変化させることが出来
る。好ましくは結晶性を損なわないポリブレンドであ
る。The syndiotactic pentad component ratio of the SPP used in the present invention can be measured by 13 C-NMR or the like. Moreover, it can be easily estimated by IR and DSC. This SPP has a syndiotactic pentad component ratio of 55% by weight or more. 5
If it is less than 5% by weight, the crimping rate is too low. It is preferably at least 60% by weight. Also, from the viewpoint of spinnability, it is preferably 55 to
It is 70% by weight. This SPP is a crystalline polymer. The syndiotactic pentad component ratio of SPP can also be changed depending on the polymerization conditions. Also, I
It can also be changed by polyblending with PP. A polyblend that does not impair the crystallinity is preferable.
【００１１】本発明に用いるＳＰＰの分子量は溶融紡糸
に適当な分子量であれば良い。また、一般的な分子量調
整で用いられる過酸化物による解重合で調整することが
できる。複合繊維の溶融紡糸では紡糸温度での両成分の
粘度が近い方が紡出し易く、好ましい。一般的な溶融紡
糸の溶融粘度は０．１〜３０であり、好ましくは１〜１
５である。この溶融粘度はオリフィス径が２ｍｍ、荷重
２．１６ｋｇ、温度１９０℃で１０分間の流出重量をｇ
数で示したＪＩＳの方法で測定した値である。The molecular weight of SPP used in the present invention may be any molecular weight suitable for melt spinning. Further, it can be adjusted by depolymerization with a peroxide which is generally used for adjusting the molecular weight. In melt spinning of composite fibers, it is preferable that the viscosities of both components at the spinning temperature are close to each other because spinning is easy. The melt viscosity of general melt spinning is 0.1 to 30, preferably 1 to 1.
It is 5. This melt viscosity is calculated as follows: the orifice weight is 2 mm, the load is 2.16 kg, and the outflow weight for 10 minutes at a temperature of 190 ° C is g.
It is a value measured by the JIS method indicated by a number.
【００１２】また、上記のＳＰＰには紡糸時の膠着を阻
害しない範囲で少量のエチレン等他のビニルコモノマー
を共重合することもできる。さらに、各種の安定剤、例
えば紫外線安定剤、耐熱安定剤、結晶化促進剤、および
難燃剤、艶消し剤、顔料、抗菌剤、抗かび剤等を添加
し、用いることもできる。Further, a small amount of another vinyl comonomer such as ethylene can be copolymerized with the above SPP within a range that does not inhibit sticking during spinning. Further, various stabilizers, for example, an ultraviolet stabilizer, a heat resistance stabilizer, a crystallization accelerator, a flame retardant, a matting agent, a pigment, an antibacterial agent, an antifungal agent and the like can be added and used.
【００１３】複合繊維の紡糸方法は一般的な複合口金を
用いた溶融紡糸で良い。即ち、エクスツルーダーで両成
分を別々に溶融後、複合口金で合わせ、溶融紡糸し、冷
却風で冷却する。冷却された後、オイリングし、未延伸
糸として巻き取られる。この際に紡糸時に同時に延伸し
ても良く、紡糸後延伸しても良い。ステープルの場合は
溶融紡糸された糸は集束され、延伸された後、オイリン
グ、機械捲縮付与をされ、カットされる。複合繊維は内
部歪を残した状態で保管され、熱処理により自己捲縮が
発現する。The method for spinning the composite fiber may be melt spinning using a general composite spinneret. That is, both components are separately melted in an extruder, combined with a composite spinneret, melt-spun, and cooled with cooling air. After being cooled, it is oiled and wound as an undrawn yarn. At this time, stretching may be carried out simultaneously during spinning, or stretching may be carried out after spinning. In the case of staples, melt-spun yarns are bundled, drawn, and then subjected to oiling, mechanical crimping, and cutting. The composite fiber is stored with internal strain left, and self-crimping occurs by heat treatment.
【００１４】ＳＰＰを用いた紡糸では紡糸時の膠着防止
が重要である。従って、紡糸時に冷却風を十分に供給す
ることが必要である。特に単繊維の太さが大きい場合、
また繊維束の大きさが大きい場合には注意を必要とす
る。単繊維が５デニール以下でトータルデニールが１５
０デニール以下であれば１５〜２０℃の冷却風でも良い
が、それ以上の場合には１５℃以下、好ましくは１０℃
以下、場合によっては５℃以下で紡出する方が好まし
い。In spinning using SPP, it is important to prevent sticking during spinning. Therefore, it is necessary to supply sufficient cooling air during spinning. Especially when the thickness of monofilament is large,
Moreover, caution is required when the size of the fiber bundle is large. Single denier less than 5 denier and total denier 15
If it is 0 denier or less, cooling air of 15 to 20 ° C may be used, but if it is more than 15 ° C, it is preferably 15 ° C or less,
Hereinafter, in some cases, spinning at 5 ° C. or lower is preferable.
【００１５】ＳＰＰを用いた複合紡糸ではクロスセクシ
ョンがサイドバイサイドか、または実質的にサイドバイ
サイドである偏芯した芯鞘型であっても良い。偏芯比率
は大きくなるほど捲縮数は多くなり好ましい。サイドバ
イサイドであれば特に円形のクロスセクションでなくと
も良く、楕円形であっても良い。好ましくは両成分が直
線的に接合している方が自己発現捲縮数が多くなり好ま
しい。また、楕円形の長軸に近い形状が捲縮率が多くな
り好ましい。両成分の複合比率はＳＰＰ：ＩＰＰが１：
３以下が捲縮数が多く、より１：１に近い方が捲縮数が
多くなり好ましい。In the composite spinning using SPP, the cross section may be a side-by-side or an eccentric core-sheath type in which the cross-section is substantially side-by-side. The larger the eccentricity ratio, the larger the number of crimps, which is preferable. If it is side-by-side, it need not be a circular cross section and may be an ellipse. It is preferable that the two components are joined linearly because the number of self-expressing crimps is increased. Moreover, a shape close to the major axis of the ellipse is preferable because the crimping rate increases. The composite ratio of both components is SPP: IPP is 1:
The number of crimps of 3 or less is large, and the number of crimps closer to 1: 1 is preferable because the number of crimps is large.
【００１６】本発明の複合繊維の他のポリマーとしては
ＩＰＰを用いる。このポリマーは従来より製造され、市
販されてているチーグラーナッタ触媒やカミンスキー触
媒により重合されているものでも良い。溶融粘度はＳＰ
Ｐと同程度が可紡性の点で好ましい。また、ＩＰＰは上
記のＳＰＰの製造方法によっても重合条件を選択するこ
とにより製造することができる。さらには、ＳＰＰやア
タクチックポリプロピエンとをポリブレンドすることに
よっても製造することが出来る。ＩＰＰのペンタッド成
分率の測定はＳＰＰと同様にして行うことが出来る。Ｉ
ＰＰのペンタッド成分率が５５重量％未満では結晶性ま
たは結晶化速度が小さく、紡糸時膠着を発生し易くな
る。好ましくは７０重量％、より好ましくは８０重量％
以上である。また、上記のＩＰＰには紡糸時の膠着を阻
害しない範囲で少量のエチレン等他のビニルコモノマー
を共重合することもできる。さらに、各種の安定剤、例
えば紫外線安定剤、耐熱安定剤、結晶化促進剤、および
難燃剤、艶消し剤、顔料、抗菌剤、抗かび剤等を添加
し、用いることもできる。本発明の複合繊維フィラメン
トは紡糸時、延伸時、またその後の工程で他の繊維と混
繊することもできる。また、引き揃えて用いることがで
きる。IPP is used as another polymer of the conjugate fiber of the present invention. This polymer may be one produced by a conventional method and polymerized with a commercially available Ziegler-Natta catalyst or Kaminsky catalyst. Melt viscosity is SP
The same degree as P is preferable in terms of spinnability. IPP can also be produced by selecting the polymerization conditions by the above-mentioned method for producing SPP. Further, it can be produced by polyblending with SPP or atactic polypropene. The pentad component ratio of IPP can be measured in the same manner as SPP. I
When the pentad component ratio of PP is less than 55% by weight, crystallinity or crystallization rate is low and sticking is apt to occur during spinning. Preferably 70% by weight, more preferably 80% by weight
That is all. In addition, a small amount of another vinyl comonomer such as ethylene can be copolymerized with the above IPP within a range that does not inhibit sticking during spinning. Further, various stabilizers, for example, an ultraviolet stabilizer, a heat resistance stabilizer, a crystallization accelerator, a flame retardant, a matting agent, a pigment, an antibacterial agent, an antifungal agent and the like can be added and used. The composite fiber filaments of the present invention can be mixed with other fibers during spinning, drawing, and the subsequent steps. Further, they can be aligned and used.
【００１７】本発明の複合繊維ステープルを混紡し、本
発明の紡績糸を製造することもできる。紡績方法は特に
限定しない。一般的に用いられる短紡績、ソ毛紡績、紡
毛紡績、セミソ毛紡績、空気紡績、結束紡績、ラップ紡
績等で製造することができる。紡績糸の本発明の複合繊
維の混紡率は５０重量％以上が好ましい。５０重量％未
満では捲縮発現による糸のバルキー性が不足する。好ま
しくは７０重量％以上、さらに好ましくは９０％以上で
ある。また、バルキー性を向上するために収縮繊維を混
合することもできる。好ましくは２０重量％以上であ
る。紡績糸の撚セットは乾熱または湿熱で４０℃以上で
できるが、８０℃以下が好ましい。４０℃未満ではセッ
トが不足し、８０℃を越えると一部捲縮が発現し編立性
が低下する場合がある。撚係数は紡績方法により異なる
が、一般的な値より少し小さい方がバルキー性の点で好
ましい。また、紡績糸は染色時にバルキー出しを行うこ
ともできる。一般的なバルキー糸と同様にかせ取りし、
バルキー出しをすれば良い。The spun yarn of the present invention can also be manufactured by blending the conjugate fiber staple of the present invention. The spinning method is not particularly limited. It can be manufactured by commonly used short spinning, woolen spinning, woolen spinning, semi-woven wool spinning, pneumatic spinning, binding spinning, lap spinning, and the like. The blending ratio of the conjugate fiber of the present invention in the spun yarn is preferably 50% by weight or more. If it is less than 50% by weight, the bulkiness of the yarn is insufficient due to the occurrence of crimp. It is preferably 70% by weight or more, and more preferably 90% or more. Further, shrinkable fibers can be mixed to improve the bulkiness. It is preferably at least 20% by weight. The twisting set of the spun yarn can be performed at 40 ° C. or higher by dry heat or wet heat, but 80 ° C. or lower is preferable. If the temperature is lower than 40 ° C, the set may be insufficient, and if the temperature exceeds 80 ° C, some crimps may appear and the knitting property may be deteriorated. The twisting coefficient varies depending on the spinning method, but a value slightly smaller than a general value is preferable in terms of bulkiness. In addition, the spun yarn can be bulked during dyeing. Skein like common bulky thread,
Bulky out.
【００１８】また、本発明の複合繊維を用いて本発明の
不織布を製造できる。不織布を製造する方法は特に限定
しない。一般に用いられるカーディング後、ニードルパ
ンチングする方法やエアレイ法による方法やスパンレー
ス法を用いることができる。不織布の混紡率は５０重量
％以上が好ましい。５０重量％未満では捲縮発現による
バルキー性が不足する。好ましくは７０重量％以上、さ
らに好ましくは９０％以上である。また、バルキー性を
向上するために収縮繊維を混合することもできる。上記
の紡績糸および不織布には適宜バルキー性を損なわない
範囲で他の繊維、例えば合成繊維、天然繊維、再生繊維
等を混合して用いることもできる。Further, the nonwoven fabric of the present invention can be produced by using the conjugate fiber of the present invention. The method for producing the nonwoven fabric is not particularly limited. After carding, which is generally used, a method of needle punching, a method by an air lay method, or a spunlace method can be used. The blending ratio of the non-woven fabric is preferably 50% by weight or more. If it is less than 50% by weight, the bulkiness due to the crimp development is insufficient. It is preferably 70% by weight or more, and more preferably 90% or more. Further, shrinkable fibers can be mixed to improve the bulkiness. Other fibers, such as synthetic fibers, natural fibers, and recycled fibers, may be appropriately mixed and used in the spun yarn and the nonwoven fabric as long as the bulkiness is not impaired.
【００１９】また、上記の紡績糸またはおよびフィラメ
ントを用いて本発明の編み織物を製造することができ
る。編み物の製造方法は特に限定しない。一般的な丸編
み機、横編み機等で編み立てることができる。ゲージと
糸の太さを合わせれば良い。変わり編み、両面編み等も
できる。両面編みでは地糸だけでなく、繋ぎ糸に用いる
こともできる。また、織物の製造方法は特に限定しな
い。一般的な織機で織り上げることができる。例えば自
動力織機、レピア織機、エアジェット織機、ウオーター
ジェット織機等で織り上げることができる。織物の経糸
にも緯糸にも用いることができる。また織機を選定する
ことにより、モケットのように２重織りもできる。メッ
シュ織りもできる。Further, the knitted fabric of the present invention can be produced by using the above spun yarn and / or filament. The knitting method is not particularly limited. It can be knitted with a general circular knitting machine or flat knitting machine. Just match the gauge and thread thickness. Alternate knitting and double-sided knitting are also possible. In double-sided knitting, it can be used not only as a ground yarn but also as a connecting yarn. Further, the method for manufacturing the woven fabric is not particularly limited. It can be woven with a general loom. For example, it can be woven by an automatic power loom, a rapier loom, an air jet loom, a water jet loom, or the like. It can be used for both warp and weft of textiles. By selecting a loom, double weaving can be performed like a moquette. Mesh weaving is also possible.
【００２０】上記の編み織物はテンター乾燥機等、不織
布は熱処理機で幅入れと同時にバルキー出しすることも
できる。熱処理温度と熱処理時間の選定は熱処理機の効
率に負うところが大きい。また、編み織物の目付けの大
小、組織の粗密によっても左右されるので、適宜適当な
条件を選定すべきである、一般的には１００℃以上、１
４０℃未満の雰囲気で行われる。処理時間は３０秒以
上、好ましくは１分間以上である。また、編み織物は吊
り染め（スター染色機）でもバルキー出しを行うことが
出来る。The above-mentioned knitted fabric can be bulked at the same time as the width-width is put into the nonwoven fabric by a tenter drier or the like, and the nonwoven fabric can be put out by the heat treatment machine. The selection of heat treatment temperature and heat treatment time largely depends on the efficiency of the heat treatment machine. Further, it depends on the size of the basis weight of the knitted fabric and the density of the structure, so appropriate conditions should be selected appropriately, generally 100 ° C or higher, 1
It is performed in an atmosphere of less than 40 ° C. The treatment time is 30 seconds or longer, preferably 1 minute or longer. The knitted woven fabric can be bulked by hanging dyeing (star dyeing machine).
【００２１】[0021]
実施例１ 重合触媒にイソプロピル（シクロペンタジエニルー１ー
フルオレニル）ジルコニウムジクロリドと平均重合度１
６のメチルアルミノキサンを１：１５０で用い、２０℃
で２時間、定法により加圧重合し、脱灰処理後、塩酸洗
浄をし、シンジオタクチックペンタッド成分が９４重量
％のＳＰＰを製造した。次に過酸化物を添加し解重合
し、粘度調整した後、添加剤としてステアリン酸Ｃａと
２，６−ジ−ｔ−ブチルフェノールを添加し、溶融粘度
１２のチップを製造し、複合繊維の鞘成分Ａとして用い
た。このチップの融点は１４０℃であった。Example 1 Isopropyl (cyclopentadienyl-1-fluorenyl) zirconium dichloride was used as a polymerization catalyst, and the average degree of polymerization was 1.
Using 6 methylaluminoxane at 1: 150 at 20 ° C
After pressure polymerization for 2 hours in a conventional manner, deashing treatment, and washing with hydrochloric acid, SPP containing 94% by weight of syndiotactic pentad component was produced. Next, peroxide is added to depolymerize and adjust the viscosity, and then Ca stearate and 2,6-di-t-butylphenol are added as additives to produce chips having a melt viscosity of 12 and the sheath of the composite fiber. Used as component A. The melting point of this chip was 140 ° C.
【００２２】複合繊維の他成分Ｂとして溶融粘度１１、
融点１６１℃の市販のＩＰＰと上記のＳＰＰをポリブレ
ンドし、アイソタクチックペンタッド成分が９０重量％
のＩＰＰを用い、２８０℃でＡ、Ｂ成分をエクスツルー
ダーで別々に溶融し、ギアポンプで計量し、１：１の未
延伸サイドバイサイド型複合糸を紡出した。冷却風の温
度は５℃とし、紡糸油剤を多く付着し、膠着を防止し
た。次に６０℃で４．３倍延伸し、７５デニール１６フ
ィラメントの本発明の複合繊維を製造した。この複合繊
維の引張強度はＪＩＳ Ｌ−１０１３に準じ測定し、
３．３ｇ／デニール、伸度は３２％であった。この複合
繊維の沸水捲縮数は６１個／インチであった。As the other component B of the composite fiber, the melt viscosity is 11,
A commercially available IPP having a melting point of 161 ° C. and the above SPP are polyblended, and the isotactic pentad component is 90% by weight.
Using the IPP, the components A and B were separately melted by an extruder at 280 ° C., weighed by a gear pump, and a 1: 1 unstretched side-by-side type composite yarn was spun. The temperature of the cooling air was set to 5 ° C, and a large amount of spinning oil was attached to prevent sticking. Next, it was stretched 4.3 times at 60 ° C. to produce a composite fiber of the present invention having 75 denier 16 filaments. The tensile strength of this composite fiber was measured according to JIS L-1013,
The elongation was 3.3 g / denier and the elongation was 32%. The boiling water crimp number of this composite fiber was 61 pieces / inch.
【００２３】実施例２ 実施例１で製造したＳＰＰにＩＰＰを混練り機でポリブ
レンドし、ブレンド率を変更し、成分Ａとし、実施例１
と同様にして試験Ｎｏ．１〜５の本発明の複合繊維と試
験Ｎｏ．６の比較品を製造し、紡糸デニールを徐々に大
きくし、紡糸での膠着が発生する延伸後のデニールの比
較と、沸水捲縮数の測定結果を表１に示した。比較し易
くするため冷却風の温度は２０℃とした。Example 2 The SPP produced in Example 1 was polyblended with IPP using a kneader to change the blending ratio to obtain Component A, and Example 1 was used.
Test No. 1 to 5 of the composite fiber of the present invention and Test No. A comparative product of No. 6 was manufactured, the spinning denier was gradually increased, and the denier after stretching where sticking occurred in spinning was compared and the measurement results of the number of boiling water crimps are shown in Table 1. The temperature of the cooling air was set to 20 ° C. for easy comparison.
【００２４】[0024]
【表１】 [Table 1]
【００２５】実施例３ 実施例２の試験Ｎｏ．４と同様にして、成分Ｂとして実
施例１のＩＰＰを用い、２９０℃でＡ、Ｂ成分をエクス
ツルーダーで別々に溶融し、ギアポンプで計量し、定法
によりサイドバイサイドタイプの複合金を用い複合比率
１：１の未延伸複合糸を紡出した。この未延伸糸束を束
ね、延伸し、クリンプを付与した後、油剤を給油し、カ
ットして本発明の複合繊維ステープル１．５デニール５
１ｍｍを製造した。沸水捲縮数は６５個／インチであっ
た。Example 3 Test No. 2 of Example 2 In the same manner as in 4, the IPP of Example 1 was used as the component B, the components A and B were separately melted at 290 ° C. by an extruder, measured by a gear pump, and a composite ratio of side-by-side type composite gold was used by a conventional method. A 1: 1 undrawn composite yarn was spun. This unstretched yarn bundle is bundled, stretched, and crimped, then an oil agent is fed and cut to obtain a composite fiber staple of the present invention 1.5 denier 5
1 mm was produced. The number of crimps of boiling water was 65 pieces / inch.
【００２６】市販のポリエチレンテレフタレートステー
プル１．５デニール５１ｍｍと混紡し、本発明の複合繊
維の混紡率を表２のように変化し定法の短紡績で２／３
２を紡績した。次に２８ゲージの丸編み機で編み立て、
編地を１７０℃でテンター乾燥し、入るだけ最大の幅入
れバルキー出しを行い、カンチレバー法で剛軟度を測定
しその結果を表２に示した。バルキーの大きいほど幅入
れが大きくなり、剛軟度は大きい値を示した。Blending with commercially available polyethylene terephthalate staple 1.5 denier 51 mm, the blending ratio of the composite fiber of the present invention was changed as shown in Table 2, and 2/3 was obtained by a conventional short spinning.
2 was spun. Next, knit with a 28 gauge circular knitting machine,
The knitted fabric was tenter-dried at 170 ° C., the maximum width was inserted as much as possible, bulky out, and the bending resistance was measured by the cantilever method. The results are shown in Table 2. The larger the bulky, the larger the width and the greater the bending resistance.
【００２７】[0027]
【表２】 [Table 2]
【００２８】実施例４ 実施例３の本発明の複合繊維ステープル１．５デニール
と市販のポリエチレンテレフタレートステープル１．５
デニール５１ｍｍとを混綿し、カーディング後、クロス
レイし、定法により４０本／ｃｍ2 の本数でニードルパ
ンチングし、混綿率を変化し目付け１００ｇ／ｍ2 の不
織布を製造した。この不織布を２００℃の熱風熱処理機
でフリーで幅入れバルキー出しを行い、カンチレバー法
で剛軟度を測定しその結果を表３に示した。Example 4 1.5 denier of the inventive composite fiber staple of Example 3 and a commercially available polyethylene terephthalate staple 1.5.
A denier of 51 mm was mixed, carded, cross-laid, and needle punched at a number of 40 / cm 2 by a conventional method to change the mixing ratio to produce a nonwoven fabric having a basis weight of 100 g / m 2 . This nonwoven fabric was subjected to free-width insertion and bulky removal by a hot air heat treatment machine at 200 ° C., and the bending resistance was measured by the cantilever method. The results are shown in Table 3.
【００２９】[0029]
【表３】 [Table 3]
【００３０】実施例５ 実施例１で製造したＳＰＰにＩＰＰを混練り機でポリブ
レンドしシンジオタクチックペンタッド成分が８０重量
％のＳＰＰを成分Ａとし、ＩＰＰのポリブレンド率を多
くしたＩＰＰを成分Ｂとし、表２に示すように成分Ｂの
アイソタクチックペンタッド成分率を変化し、試験Ｎ
ｏ．１５〜１７の本発明の複合繊維と試験Ｎｏ．１８の
比較品を製造し、紡糸デニールを徐々に大きくし、紡糸
での膠着が発生するデニールを比較と、沸水捲縮数の測
定結果を表４に示した。比較し易くするため冷却風の温
度は２０℃とした。Example 5 SPP produced in Example 1 was polyblended with IPP by a kneader to prepare SPP having 80% by weight of syndiotactic pentad component as component A, and IPP having a high polyblending ratio of IPP was prepared. As the component B, the isotactic pentad component ratio of the component B was changed as shown in Table 2, and the test N
o. 15 to 17 of the composite fiber of the present invention and Test No. Eighteen comparative products were produced, the spinning denier was gradually increased, and the denier at which sticking occurred during spinning was compared, and the measurement results of the number of boiling water crimps are shown in Table 4. The temperature of the cooling air was set to 20 ° C. for easy comparison.
【００３１】[0031]
【表４】 [Table 4]
【００３２】[0032]
【発明の効果】本発明のポリプロピレン複合繊維は自己
発現捲縮数が多く、これを用いた不織布、紡績糸、編み
織物は優れたバルキー性を示す。EFFECT OF THE INVENTION The polypropylene conjugate fiber of the present invention has a large number of self-exposed crimps, and a nonwoven fabric, spun yarn and knitted fabric using the same exhibit excellent bulkiness.
Claims (6)
５重量％以上であるポリプロピレンとアイソタクチック
ペンタッド成分が５５重量％以上であるポリプロピレン
からなるサイドバイサイド型複合繊維。1. The syndiotactic pentad component is 5
A side-by-side type composite fiber composed of 5 wt% or more of polypropylene and polypropylene having an isotactic pentad component of 55 wt% or more.
の複合繊維。2. The composite fiber is a filament.
Composite fiber.
複合繊維。3. The composite fiber of claim 1, wherein the composite fiber is staple.
項１の複合繊維を少なくとも５０重量％混合している不
織布。4. A non-woven fabric, wherein the composite fiber is staple, and the composite fiber of claim 1 is mixed in at least 50% by weight.
項１の複合繊維を少なくとも５０重量％混合している紡
績糸。5. A spun yarn in which the conjugate fiber is staple, and at least 50% by weight of the conjugate fiber of claim 1 is mixed.
求項５の紡績糸からなる編み織物。6. A knitted fabric comprising the filament of claim 2 and / or the spun yarn of claim 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7053522A JPH08226018A (en) | 1995-02-16 | 1995-02-16 | Conjugated fiber |
| PCT/JP1995/002638 WO1996021759A1 (en) | 1995-01-09 | 1995-12-22 | Conjugated fiber and fiber structure containing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7053522A JPH08226018A (en) | 1995-02-16 | 1995-02-16 | Conjugated fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08226018A true JPH08226018A (en) | 1996-09-03 |
Family
ID=12945159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7053522A Pending JPH08226018A (en) | 1995-01-09 | 1995-02-16 | Conjugated fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08226018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0894875A3 (en) * | 1997-07-28 | 1999-07-21 | Fina Technology, Inc. | Biocomponent fibers of isotactic and syndiotactic polypropylene, methods of making and products made thereof |
| WO2000033685A1 (en) * | 1998-12-09 | 2000-06-15 | Uni-Charm Co., Ltd. | Disposable wearing article |
-
1995
- 1995-02-16 JP JP7053522A patent/JPH08226018A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0894875A3 (en) * | 1997-07-28 | 1999-07-21 | Fina Technology, Inc. | Biocomponent fibers of isotactic and syndiotactic polypropylene, methods of making and products made thereof |
| CN1128255C (en) * | 1997-07-28 | 2003-11-19 | 弗纳技术股份有限公司 | Isotactic polypropylene and syntiotactic polypropylent double-component fiber, making method and products thereof |
| WO2000033685A1 (en) * | 1998-12-09 | 2000-06-15 | Uni-Charm Co., Ltd. | Disposable wearing article |
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