JPH0441728A - Tow system spun yarn - Google Patents
Tow system spun yarnInfo
- Publication number
- JPH0441728A JPH0441728A JP14545690A JP14545690A JPH0441728A JP H0441728 A JPH0441728 A JP H0441728A JP 14545690 A JP14545690 A JP 14545690A JP 14545690 A JP14545690 A JP 14545690A JP H0441728 A JPH0441728 A JP H0441728A
- Authority
- JP
- Japan
- Prior art keywords
- acrylic
- spun yarn
- particulate
- acrylic fiber
- fibers
- 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
- 229920002972 Acrylic fiber Polymers 0.000 claims abstract description 32
- 108700005457 microfibrillar Proteins 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 38
- 229920001577 copolymer Polymers 0.000 claims description 9
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 7
- 238000005345 coagulation Methods 0.000 abstract description 22
- 230000015271 coagulation Effects 0.000 abstract description 22
- 239000002904 solvent Substances 0.000 abstract description 15
- 238000009987 spinning Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 5
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 5
- 229920006243 acrylic copolymer Polymers 0.000 abstract 2
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000000701 coagulant Substances 0.000 description 6
- -1 vinyl halides Chemical class 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- NJYFRQQXXXRJHK-UHFFFAOYSA-N (4-aminophenyl) thiocyanate Chemical class NC1=CC=C(SC#N)C=C1 NJYFRQQXXXRJHK-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000001724 microfibril Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000935 solvent evaporation Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- ZRGUXTGDSGGHLR-UHFFFAOYSA-K aluminum;triperchlorate Chemical compound [Al+3].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O ZRGUXTGDSGGHLR-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 150000003567 thiocyanates Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明はトウ紡績系に関する。さらに詳しくはバルキー
性に優れたアクリル紡績糸に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to tow spinning systems. More specifically, the present invention relates to an acrylic spun yarn having excellent bulkiness.
[従来の技術]
アクリル繊維は、優れた耐久性、鮮やかな発色性を生か
しニット、ジャーシイ等の衣料分野、毛布等の寝装分野
、インチリヤ分野で広く用いられているが、特に最近は
消費者ニーズの多様化に伴ないバルキー性の向上に対す
る要求が極めて高い。[Prior art] Acrylic fibers are widely used in the clothing field such as knits and jerseys, bedding fields such as blankets, and indoor clothing fields due to their excellent durability and vivid coloring properties. With the diversification of needs, there is an extremely high demand for improved bulkiness.
[発明が解決しようとする課題]
本発明の課題は、バルキー性が改良されたアクリル繊維
のトウ紡績系を開発することにある。[Problems to be Solved by the Invention] An object of the present invention is to develop an acrylic fiber tow spinning system with improved bulkiness.
[課題を解決するための手段]
本発明者らは、アクリル繊維の優れた耐久性、鮮やかな
発色性を生かし、さらに最近の消費者ニーズの多様化に
伴なうバルキー性の向上に対する要求に応えるべく鋭意
検討の結果、特定のアクリル繊維を用いかつ、トウ紡績
手段を採用することによってバルキー性に優れたトウ紡
績糸を開発したものである。[Means for Solving the Problems] The present inventors took advantage of the excellent durability and vivid coloring properties of acrylic fibers, and further developed a new technology to meet the demand for improved bulkiness that has come with the recent diversification of consumer needs. As a result of intensive research in response to these demands, we have developed a tow spun yarn with excellent bulkiness by using specific acrylic fibers and employing a tow spinning method.
すなわち、本発明は、トウ紡績糸において、該紡績糸を
構成する繊維が、アクリロニトリル重合体又はアクリロ
ニトリル共重合体から構成されてなる繊維であって、し
かも繊維の表面が幅0.01〜0.5μm、長さ0.0
5〜10umの粒子状及び/又はミクロフィブリル状構
造物と、該粒子状及び/又はミクロフィブリル状構造物
の集合体である幅0.1〜IOμm、長さ50μm以上
のフィブリル状構造物で構成されたアクリル系繊維であ
るトウ紡績糸、である。That is, the present invention provides a tow spun yarn in which the fibers constituting the spun yarn are composed of an acrylonitrile polymer or an acrylonitrile copolymer, and the surface of the fibers has a width of 0.01 to 0.0. 5μm, length 0.0
Consisting of particulate and/or microfibrillar structures of 5 to 10 um and fibrillar structures of 0.1 to IO μm in width and 50 μm or more in length, which are aggregates of the particulate and/or microfibrillar structures. It is a tow spun yarn, which is an acrylic fiber.
以下本発明を詳述する。The present invention will be explained in detail below.
本発明で使用される特定のアクリル繊維及びその製造方
法は、特開昭61−119707号公報に詳述されてい
る。すなわち、本発明で用いられるアクリル系繊維は、
アクリロニトリル重合体又はアクリロニトリル共重合体
とその溶剤とから調整されたドープを使用して、湿式紡
糸法で繊維を形成する場合において、ドープをスキン層
形成不能濃度範囲内に設定された溶剤と凝固剤とからな
る延伸浴中で延伸することを特徴とする製法によって得
ることができる。The specific acrylic fiber used in the present invention and its manufacturing method are detailed in JP-A-61-119707. That is, the acrylic fiber used in the present invention is
When forming fibers by wet spinning using a dope prepared from an acrylonitrile polymer or acrylonitrile copolymer and its solvent, the dope is mixed with a solvent and a coagulant set within a concentration range that does not allow the formation of a skin layer. It can be obtained by a manufacturing method characterized by stretching in a stretching bath consisting of.
本発明で用いられるアクリル系繊維は、アクリロニトリ
ル重合体又はアクリロニトリル共重合体から構成されて
なる繊維であって、アクリロニトリル共重合体は重量%
で50%以上のアクリロニトリルを含有するものであり
、好適には85%以上含有するものである。共重合可能
な単量体としては、アクリル酸及びそのエステル類、メ
タクリル酸及びそのエステル類、アクリルアミド及びN
置換アミド類、塩化ビニル等のビニルハライド類、酢酸
ビニル等のビニルエステル類、イタコン酸、マレイン酸
等のビニルジカルボン酸及びそのエステル類、塩化ビニ
リデン等のビニリデンハライド類、ビニルピリジン及び
そのN置換体類、ビニルピロリドン、スチレン、アリル
スルホン酸、メタリルスルホン酸、スチレンスルホン酸
等のスルホン酸化合物及びその塩類が挙げられ、これら
の2種以上を共重合に用いることもできる。The acrylic fiber used in the present invention is a fiber composed of an acrylonitrile polymer or an acrylonitrile copolymer, and the acrylonitrile copolymer is
It contains 50% or more acrylonitrile, preferably 85% or more. Copolymerizable monomers include acrylic acid and its esters, methacrylic acid and its esters, acrylamide and N
Substituted amides, vinyl halides such as vinyl chloride, vinyl esters such as vinyl acetate, vinyldicarboxylic acids and their esters such as itaconic acid and maleic acid, vinylidene halides such as vinylidene chloride, vinylpyridine and its N-substituted products Examples include sulfonic acid compounds such as vinylpyrrolidone, styrene, allylsulfonic acid, methallylsulfonic acid, and styrenesulfonic acid, and their salts, and two or more of these can also be used in copolymerization.
本発明で用いられるアクリル系繊維は、繊維の表面が幅
0.01〜0.5μm、長さ0.05〜10 // m
の繊維方向に配列した粒子状及び/又はミクロフィブリ
ル状構造物から構成されているのが特徴である。従来の
アクリル系繊維においては、表面には、このような粒子
状及び/又はミクロフィブリル状構造物は存在せず、繊
維軸に比較的平行な筋が観察されるのみである。従来の
アクリル系繊維に見られる筋は、延伸又は熱処理工程に
おいて発生するアクリル系繊維の体積収縮によるしわに
よるもの、又は乾式紡糸繊維においては溶媒の蒸発跡が
延伸によって筋状化したものと解釈される。本発明に用
いるアクリル系繊維の粒子状及び/又はミクロフィブリ
ル状構造物は、凝固時に起こるミクロ相分離によって発
生したゲル粒子が延伸工程で繊維軸方向に引き伸ばされ
て形成された本発明に固有の構造的特徴である。従来の
アクリル系繊維においては、凝固がスキン層形成不能濃
度範囲より低い、スキン層形成濃度の凝固浴で行われる
ため、凝固時に緻密で堅いスキン層が繊維表面に形成さ
れる。また、驚くべきことに、後述する紡糸方法を採用
した場合、凝固、延伸によって、従来の繊維については
凝固、延伸時に存在する、100〜2000人程度のボ
イドが全く存在せず本質的に透明な繊維が得られること
が判明した。The acrylic fiber used in the present invention has a fiber surface with a width of 0.01 to 0.5 μm and a length of 0.05 to 10 m.
It is characterized by being composed of particulate and/or microfibrillar structures arranged in the fiber direction. In conventional acrylic fibers, such particulate and/or microfibrillar structures do not exist on the surface, and only streaks relatively parallel to the fiber axis are observed. The streaks seen in conventional acrylic fibers are interpreted to be due to wrinkles due to volumetric shrinkage of the acrylic fibers that occur during the drawing or heat treatment process, or, in the case of dry spun fibers, to be streaks caused by solvent evaporation traces caused by stretching. Ru. The particulate and/or microfibrillar structures of acrylic fibers used in the present invention are unique to the present invention and are formed by stretching gel particles generated by microphase separation during coagulation in the fiber axis direction during a drawing process. It is a structural feature. In conventional acrylic fibers, coagulation is performed in a coagulation bath with a skin layer-forming concentration lower than the skin layer-forming concentration range, so a dense and hard skin layer is formed on the fiber surface during coagulation. Surprisingly, when the spinning method described below is adopted, by coagulation and drawing, there are no voids of about 100 to 2000, which exist in conventional fibers during coagulation and drawing, and the fibers are essentially transparent. It was found that fibers were obtained.
本発明において好適な繊維は、繊維表面が幅0.05〜
0.3μm、長さ0.5〜10μmの粒子状及び/又は
ミクロフィブリル状構造物で形成されており、長軸が繊
維軸方向に配列している。The fibers suitable for the present invention have a fiber surface width of 0.05 to
It is formed of a particulate and/or microfibrillar structure with a diameter of 0.3 μm and a length of 0.5 to 10 μm, and its long axis is aligned in the direction of the fiber axis.
この粒子状及び/又はミクロフィブリル状構造物の存在
は、市販の走査型電子顕微鏡(例えば日本電子■製 商
品名JSM−35CF)によって、加速電圧5〜15K
v、倍率3000〜30000倍の観察条件で確認する
ことができる。The presence of this particulate and/or microfibrillar structure can be detected using a commercially available scanning electron microscope (for example, JEOL Ltd., trade name JSM-35CF) at an accelerating voltage of 5 to 15 K.
v. It can be confirmed under observation conditions of 3000x to 30000x magnification.
さらに本発明に用いるアクリル系繊維は、その表面が該
粒子状及び/又はミクロフィブリル状構造物が集合して
形成された幅0.1〜10μm、長さ50μm以上のフ
ィブリル状構造物で構成されることが構造の特徴の一つ
である。フィブリル状構造物はその長軸がほとんど繊維
軸方向に平行に配列している。好適なものは、幅0.1
1−1Oaのフィブリル状構造物が、繊維軸方向へ、長
さ100μm以上連続しているのが特徴である。従来の
アクリル系繊維においては、このようなフィブリル状構
造物の存在は確認できないが、前述した、体積収縮によ
るしわ又は溶媒の蒸発跡によって形成されたと思われる
本発明のフィブリル状構遺物に類似した筋が存在するの
が特徴である。しかしながら、この筋の繊維方向への連
続性は、船釣に50μm以下で、通常1〜30μm程度
がほとんどである。Furthermore, the acrylic fiber used in the present invention has a surface composed of a fibrillar structure having a width of 0.1 to 10 μm and a length of 50 μm or more, which is formed by an aggregation of the particulate and/or microfibrillar structures. One of the characteristics of the structure is that The long axes of the fibrillar structures are arranged almost parallel to the fiber axis direction. The preferred width is 0.1
It is characterized in that fibrillar structures of 1-1 Oa are continuous in the fiber axis direction with a length of 100 μm or more. Although the existence of such fibrillar structures cannot be confirmed in conventional acrylic fibers, they are similar to the fibrillar structures of the present invention, which are thought to be formed by wrinkles due to volumetric contraction or traces of solvent evaporation, as described above. It is characterized by the presence of streaks. However, the continuity of this streak in the fiber direction is 50 μm or less for boat fishing, and is usually about 1 to 30 μm in most cases.
このフィブリル状構造物の存在も、前述の走査型電子顕
微鏡によって確認できる。The presence of this fibrillar structure can also be confirmed by the above-mentioned scanning electron microscope.
本発明に用いるアクリル系繊維は、アクリロニトリル重
合体又はアクリロニトリル共重合体とその溶剤とから調
整されたドープをスキン層形成不能濃度範囲内に設定さ
れた溶剤と強固剤とからなる凝固浴に紡出し、ついでス
キン層形成不能濃度範囲で凝固可能濃度以下に設定され
た溶剤と凝固剤とからなる延伸浴で延伸することによっ
て得られる。The acrylic fiber used in the present invention is produced by spinning a dope prepared from an acrylonitrile polymer or an acrylonitrile copolymer and its solvent into a coagulation bath consisting of a solvent and a solidifying agent whose concentration is set within a range that does not allow the formation of a skin layer. Then, the film is obtained by stretching in a stretching bath consisting of a solvent and a coagulant whose concentration is set within a concentration range where skin layer formation is not possible and below a coagulable concentration.
ここでスキン層形成不能濃度範囲は走査型電子顕微鏡に
よって決定することができる。繊維形成に使用されるド
ープを、スライドグラス上に数μm〜1μm程度の厚さ
に塗布し、これを溶剤と凝固剤とから調整された凝固浴
に浸漬する。凝固浴の温度は繊維形成に使用される温度
に設定する。Here, the concentration range in which the skin layer cannot be formed can be determined by a scanning electron microscope. The dope used for fiber formation is applied to a thickness of several micrometers to about 1 micrometer on a slide glass, and the slide glass is immersed in a coagulation bath prepared from a solvent and a coagulant. The temperature of the coagulation bath is set to the temperature used for fiber formation.
凝固浴は溶剤の凝固浴中に占める重量%が1%間隔にな
るように濃度を変化させたものを必要な数だけ用意する
。凝固完了後、水洗し、メタノールで洗浄後、風乾して
フィルム状物を得る。このフィルムの表面を電子顕微鏡
を使用し、加速電圧5〜15KV、倍率1000倍で観
察する。観察に際しては、50〜500人の厚さのAu
を表面にコーティングする。この観察によって、スキン
層が形成される場合は、10000倍の倍率において、
フィルムの表面は平滑で多少の起伏、付着物が観察され
るのみである。スキン層が形成不能濃度範囲に入ると、
表面に0.05〜数10μmの孔や0.05〜0.5μ
m程度の粒状物が観察されるようになる。この方法によ
ってスキン層形成不能濃度範囲の下限濃度を決定するこ
とができる。A necessary number of coagulation baths are prepared with varying concentrations so that the weight percentage of the solvent in the coagulation bath is 1%. After completion of coagulation, the product is washed with water, methanol, and air-dried to obtain a film-like product. The surface of this film is observed using an electron microscope at an acceleration voltage of 5 to 15 KV and a magnification of 1000 times. During observation, Au with a thickness of 50 to 500
coat the surface. According to this observation, if a skin layer is formed, at a magnification of 10,000 times,
The surface of the film was smooth with only some undulations and deposits observed. When the skin layer enters the unformable concentration range,
Pores of 0.05 to several tens of micrometers and 0.05 to 0.5 micrometers on the surface
Particles of about m size come to be observed. By this method, it is possible to determine the lower limit of the concentration range in which a skin layer cannot be formed.
本発明で用いられるアクリル系繊維の湿式紡糸法におい
て使用される凝固浴は、アクリロニトリル重合体又はア
クリロニトリル共重合体を溶解させることが可能な溶剤
と凝固剤とから構成されてなる。溶剤としては、無機系
溶剤としてロダン塩、臭化リチウム、塩化亜鉛、過塩素
酸アルミニウム等の無機塩類の濃厚水溶液、また有機溶
剤としてジメチルホルムアミド、ジメチルアセトアミド
等のアミド系化合物、ニトリル系化合物、ジメチルスル
ホキシド等のスルホン及びスルホキシド系化合物、チオ
シアネート系化合物、ニトロ系化合物、アミノ系化合物
、リン化合物、カーボネート系化合物及びこれらの混合
物が使用される。また凝固剤としては、水、メタノール
、エタノール、アセトン、酢酸、エチレングリコール、
四塩化炭素、キシレン、ベンゼン等が使用される。工業
的に利用される凝固浴の組成としては、上述の溶剤と水
との岨合わせが一般的であり、回収等の生産性面から、
凝固浴中の溶剤とドープ中の溶剤とは通常同一のものが
使用される。The coagulation bath used in the wet spinning method for acrylic fibers used in the present invention is composed of a coagulant and a solvent capable of dissolving an acrylonitrile polymer or an acrylonitrile copolymer. Examples of solvents include concentrated aqueous solutions of inorganic salts such as rhodan salt, lithium bromide, zinc chloride, and aluminum perchlorate as inorganic solvents, and amide compounds such as dimethylformamide and dimethylacetamide, nitrile compounds, and dimethyl as organic solvents. Sulfone and sulfoxide compounds such as sulfoxide, thiocyanate compounds, nitro compounds, amino compounds, phosphorus compounds, carbonate compounds, and mixtures thereof are used. Coagulants include water, methanol, ethanol, acetone, acetic acid, ethylene glycol,
Carbon tetrachloride, xylene, benzene, etc. are used. The composition of coagulation baths used industrially is generally a combination of the above-mentioned solvent and water, and from the viewpoint of productivity such as recovery,
The solvent in the coagulation bath and the solvent in the dope are usually the same.
通常の場合、これらの凝固浴中に占める溶剤の濃度は、
スキン層が形成される濃度範囲が使用される。これは、
工業的な生産性を考慮した場合に、紡糸の安定性、操業
性に優れた条件が選択されるからである。また、スキン
層形成不能濃度範囲では、凝固浴内で凝固した繊維が蛇
行し、得られる繊維が白濁し、透明感を消失すること、
凝固に長時間を要すること等の問題があったからである
。Normally, the concentration of solvent in these coagulation baths is
A concentration range is used in which a skin layer is formed. this is,
This is because, when industrial productivity is taken into account, conditions are selected that provide excellent spinning stability and operability. In addition, in the concentration range in which skin layer formation is impossible, the coagulated fibers meander in the coagulation bath, resulting in a cloudy appearance and loss of transparency.
This is because there were problems such as a long time required for solidification.
スキン層形成不能濃度範囲は、凝固浴に使用するアクリ
ロニトリル重合体又はアクリロニトリル共重合体の溶剤
の種類によって異なるが、凝固剤が水の場合は、硝酸で
は38〜50重量%、ジメチルホルムアミド、ジメチル
アセトアミド、ジメチルスルホキシドでは65〜90重
量%、またロダン塩、塩化亜鉛では20〜40重量%の
範囲が好んで使用されるが、温度、第三成分の添加によ
っても多少適正濃度が変化するため、正確な決定は、前
述した走査型電子顕微鏡を利用することによって行うべ
きである。The concentration range in which a skin layer cannot be formed varies depending on the type of solvent for the acrylonitrile polymer or acrylonitrile copolymer used in the coagulation bath, but when the coagulant is water, it is 38 to 50% by weight for nitric acid, dimethylformamide, dimethylacetamide, etc. For dimethyl sulfoxide, a range of 65 to 90% by weight is preferred, and for rhodan salt and zinc chloride, a range of 20 to 40% by weight is preferably used. This determination should be made using the scanning electron microscope described above.
本発明に用いるアクリル系繊維は、凝固浴から巻き上げ
られた後、さらにスキン層形成不能濃度範囲に設定され
た延伸浴中で延伸される。通常、延伸倍率は2〜20倍
の範囲内に設定される。好適には5倍以上が利用される
。延伸は室温で行ってもよいが、延伸性を高めるために
温度を上昇させる場合もある。また多段延伸を行う場合
もある。The acrylic fiber used in the present invention is wound up from a coagulation bath and then further stretched in a stretching bath whose concentration is set to a range in which skin layer formation is impossible. Usually, the stretching ratio is set within the range of 2 to 20 times. Preferably, 5 times or more is used. Stretching may be carried out at room temperature, but the temperature may be raised in order to improve stretchability. Also, multi-stage stretching may be performed.
この延伸によって、本発明で用いられるアクリル系繊維
には、ボイドのない、よく配列されたミクロフィブリル
及びフィブリルが形成される。延伸が好適でない場合に
は、繊維内にボイドが発生し、ミクロフィブリル及びフ
ィブリルの配列が不完全になり、物性の低下をきたす。This stretching forms void-free, well-aligned microfibrils and fibrils in the acrylic fiber used in the present invention. If the stretching is not suitable, voids will occur within the fibers, microfibrils and fibrils will be imperfectly aligned, and physical properties will deteriorate.
本発明で用いられるアクリル系繊維は、通常の水洗処理
を行い、残存溶剤の量を繊維重量に対して0.1%未満
に除去する。さらに、物性例えば強度を増加させるため
に、熱水中又は水蒸気で再延伸する場合もある。The acrylic fibers used in the present invention are subjected to a normal water washing treatment to remove residual solvent to less than 0.1% based on the weight of the fibers. Furthermore, in order to increase physical properties such as strength, it may be re-stretched in hot water or steam.
さらに水分を除去するために、無緊張又は緊張下で乾燥
する。ついで、安定性を増すために熱処理を行う。熱処
理の方法としては、加圧水蒸気中、熱風中、熱水中、熱
板上等の加熱雰囲気下を利用する。Dry without tension or under tension to further remove moisture. Then, heat treatment is performed to increase stability. As a heat treatment method, a heating atmosphere such as pressurized steam, hot air, hot water, or on a hot plate is used.
本発明に用いるアクリル系繊維は異型度が1.1〜2.
0であることが好ましく、1.3〜1.6であることが
より優れたバルキー性を発揮するのでさらに好ましい。The acrylic fiber used in the present invention has a degree of irregularity of 1.1 to 2.
It is preferably 0, and more preferably 1.3 to 1.6 because it exhibits better bulkiness.
ここにいう異型度とは下記により定義されるものをいう
。The term "atypicality" as used herein is defined as follows.
ここにいう異型度(V)は下記により定義されるものを
いう。繊維横断面(500倍拡大写真)の外接円の直径
(r)をデニール(6)で除した値(r/d=vl)と
同一デニールにおいて真円と仮定したときの計算上の直
径(rO)をデニール同で除した値(rO/ d =v
O)との比、vl/vo=Vで表す。The degree of heterogeneity (V) referred to herein is defined as below. The calculated diameter (rO ) divided by the denier (rO/ d = v
O), expressed as vl/vo=V.
また、本発明に用いるアクリル系繊維は、空孔率が10
%〜80%であることが好ましく、20%〜80%であ
る多孔質構造のものがより優れたバルキー性を発揮する
のでさらに好ましい。Further, the acrylic fiber used in the present invention has a porosity of 10
% to 80%, and a porous structure having a porous structure of 20% to 80% is even more preferred since it exhibits better bulkiness.
ここにいう空孔率(ロ)とは下記により定義されるもの
をいう。The porosity (b) referred to herein is defined as below.
繊維横断面(500倍拡大写真)の外接円の直径(r)
をデニール(d)で除した値(r/d−vl)と同一デ
ニールにおいて真円と仮定したときの計算上の直径(r
O)をデニール(イ)で除した値(ro/ d =vO
)との差を、vOで除した値(vl−νO/vO)
Xl 00 =W(χ)で表す。Diameter (r) of circumcircle of fiber cross section (500x enlarged photo)
is divided by the denier (d) (r/d-vl) and the calculated diameter (r
The value obtained by dividing O) by denier (I) (ro/d = vO
) divided by vO (vl-νO/vO)
It is expressed as Xl 00 =W(χ).
[実 施 例コ
実施例中の%は全で重量%である。なお、本発明では、
バルキー性はJIS L−1095のかさ高測定法に
従い測定した。[Examples] All percentages in the examples are percentages by weight. In addition, in the present invention,
The bulkiness was measured according to the bulkiness measurement method of JIS L-1095.
ハJL/キー性(cd/g)=40xSxH/NSはメ
ートル番手、Hは高さ、Nは糸本数である。CJL/keyability (cd/g)=40xSxH/NS is the metric count, H is the height, and N is the number of threads.
実施例1、比較例1〜2
アクリロニトリル91.5%、アクリル酸メチル8%、
メタリルスルホン酸ソーダ0.5%の共重合体をO″C
167%硝酸水溶液に溶解し、16%の紡糸原液を調整
した。ついでこの原液を孔径0.4an、孔数1000
0のノズルを使用して、凝固浴中へ押し出した。このと
き、凝固浴は42%硝酸水溶液で、温度は5 ’Cであ
った。引き続き、硝酸濃度42%、浴温度70’Cの延
伸浴で10倍に延伸した。延伸を完了した繊維は、水洗
後130°Cの熱風中で十分乾燥し、120°Cの水蒸
気中で熱弛緩処理を行い、単糸繊度2デニール及び3デ
ニールの繊維を得た。得られた繊維を走査型電子顕微鏡
で観察した結果、繊維の表面に[0,1−0,2μm、
長さ0.5〜3μmのミクロフィブリル状構造物が繊維
軸方向に配列しているのが認められた。また、このミク
ロフィブリル状構造物が集合して、幅0.5〜5μm繊
維軸方向への長さが少なくとも100.ym、長いもの
は350um以上のフィブリル状構造物が形成されてい
るのが観察された。この繊維の引掛強伸度積は284で
、一般アクリル系繊維(旭化成工業■製 商品名 カシ
ミロン)の131に比較して、高い値を示した。Example 1, Comparative Examples 1-2 Acrylonitrile 91.5%, methyl acrylate 8%,
O″C copolymer of 0.5% sodium methallylsulfonate
It was dissolved in a 167% nitric acid aqueous solution to prepare a 16% spinning stock solution. Next, this stock solution was prepared with a pore size of 0.4 an and a number of pores of 1000.
0 nozzle was used to extrude into the coagulation bath. At this time, the coagulation bath was a 42% nitric acid aqueous solution and the temperature was 5'C. Subsequently, the film was stretched 10 times in a stretching bath with a nitric acid concentration of 42% and a bath temperature of 70'C. The stretched fibers were washed with water, thoroughly dried in hot air at 130°C, and subjected to thermal relaxation treatment in steam at 120°C to obtain fibers with single yarn finenesses of 2 and 3 denier. As a result of observing the obtained fibers with a scanning electron microscope, it was found that the surface of the fibers had [0.1-0.2 μm,
It was observed that microfibrillar structures having a length of 0.5 to 3 μm were arranged in the fiber axis direction. In addition, the microfibrillar structures collectively have a width of 0.5 to 5 μm and a length of at least 100 μm in the fiber axis direction. It was observed that fibrillar structures with a length of ym or longer than 350 um were formed. The hook strength and elongation product of this fiber was 284, which was higher than 131 for a general acrylic fiber (trade name: Cashmilon, manufactured by Asahi Kasei Kogyo ■).
このようにして得られた、2デニール及び3デニールの
アクリル系繊維及び比較例として一般アクリル系繊維(
旭化成工業■製 商品名 カシミロン)について、トウ
紡績を実施し、スフ紡績糸と比較した。The 2-denier and 3-denier acrylic fibers obtained in this way and the general acrylic fiber (
Tow spinning was performed on Asahi Kasei Kogyo's (trade name: Cashmilon) and comparison was made with Sufu spun yarn.
スフ紡績糸は、2デニールX51ミリを通常のリング精
紡機で紡出した1152メートル番手の糸である。また
、トウ紡績糸は、3デニールトウをトウリアクターで牽
切し、20%収縮率を付与したスライバー40%と3デ
ニール×■(パイヤスカット)の非収縮綿を60%で混
紡した2/34メートル番手の梳毛糸である。これらト
ウ紡績糸とスフ紡績糸とを染色した後、ノ<ルーキー性
を測定評価した。その結果を第1表Gこ示す。The Sufu spun yarn is a 1152 meter count yarn that is 2 denier x 51 mm spun using a regular ring spinning machine. In addition, the tow spun yarn is a 2/34 meter count made by cutting 3 denier tow in a tow reactor and blending 40% sliver with a 20% shrinkage rate and 60% 3 denier x ■ (payas cut) non-shrinkable cotton. It is a worsted yarn. After dyeing these tow-spun yarns and staple-spun yarns, their rookie properties were measured and evaluated. The results are shown in Table 1.
(以下余白)
実施例2〜4、比較例3〜6
実施例1と同様のアクリル系繊維を紡口形状のみ変化さ
せて第2表に示すような異型断面の繊維を製造し、実施
例1と同様に評価した。その結果を第2表に示す。(Left space below) Examples 2 to 4, Comparative Examples 3 to 6 Fibers with irregular cross sections as shown in Table 2 were produced by using the same acrylic fibers as in Example 1 but changing only the shape of the spinneret. It was evaluated in the same way. The results are shown in Table 2.
(以下余白)
実施例5〜7、比較例7〜10
紡糸原液に、エチレンオキサイド、プロピレンオキサイ
ドが重量比で80:20〜20:80のランダム型共重
合体で、その数平均分子量が10000のポリアルキレ
ングリコールを5〜20%添加した以外は実施例1と同
様にして第3表に示すような多孔質の繊維を製造した。(Left below) Examples 5 to 7, Comparative Examples 7 to 10 A random copolymer containing ethylene oxide and propylene oxide in a weight ratio of 80:20 to 20:80 was added to the spinning stock solution, and the number average molecular weight was 10,000. Porous fibers as shown in Table 3 were produced in the same manner as in Example 1 except that 5 to 20% of polyalkylene glycol was added.
得られた繊維は、長さ方間に沿って筋状(ストロ−状)
の空隙をもつ多孔質のものであった。評価結果を第3表
に示す。The obtained fibers are streak-like (straw-like) along the length.
It was porous with pores. The evaluation results are shown in Table 3.
(以下余白)
C発明の効果〕
本発明のトウ紡績系は、従来にない優れたバルキー性を
有するアクリル紡績糸である。(Hereinafter, blank spaces) C Effects of the Invention The tow spinning system of the present invention is an acrylic spun yarn with unprecedented bulkiness.
特許出願人 旭化成工業株式会社Patent applicant: Asahi Kasei Industries, Ltd.
Claims (1)
アクリロニトリル重合体又はアクリロニトリル共重合体
から構成されてなる繊維であって、しかも繊維の表面が
、幅0.01〜0.5μm、長さ0.05〜10μmの
粒子状及び/又はミクロフィブリル状構造物と、該粒子
状及び/又はミクロフィブリル状構造物の集合体である
幅0.1〜10μm、長さ50μm以上のフィブリル状
構造物で構成されたアクリル系繊維であるトウ紡績糸。1. In tow spun yarn, the fibers constituting the spun yarn are
A fiber composed of an acrylonitrile polymer or an acrylonitrile copolymer, and the surface of the fiber has a particulate and/or microfibrillar structure with a width of 0.01 to 0.5 μm and a length of 0.05 to 10 μm. Tow spun yarn is an acrylic fiber composed of a fibrillar structure having a width of 0.1 to 10 μm and a length of 50 μm or more, which is an aggregate of the particulate and/or microfibrillar structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14545690A JPH0441728A (en) | 1990-06-05 | 1990-06-05 | Tow system spun yarn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14545690A JPH0441728A (en) | 1990-06-05 | 1990-06-05 | Tow system spun yarn |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0441728A true JPH0441728A (en) | 1992-02-12 |
Family
ID=15385652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14545690A Pending JPH0441728A (en) | 1990-06-05 | 1990-06-05 | Tow system spun yarn |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0441728A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2323392A (en) * | 1997-03-21 | 1998-09-23 | Courtaulds Fibres Ltd | Fibrillated acrylic fibre |
US8358959B2 (en) | 2009-03-05 | 2013-01-22 | Ricoh Company, Ltd. | Fixing device and image forming apparatus incorporating same |
US8380114B2 (en) | 2009-03-12 | 2013-02-19 | Ricoh Company, Ltd. | Image forming apparatus and method |
US8406666B2 (en) | 2009-06-03 | 2013-03-26 | Ricoh Company, Limited | Image forming apparatus having a guide assembly between a fixing unit and conveyance unit, the guide assembly including first and second guide members |
-
1990
- 1990-06-05 JP JP14545690A patent/JPH0441728A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2323392A (en) * | 1997-03-21 | 1998-09-23 | Courtaulds Fibres Ltd | Fibrillated acrylic fibre |
GB2323392B (en) * | 1997-03-21 | 2001-08-22 | Courtaulds Fibres Ltd | Fibrillated acrylic fibre |
US8358959B2 (en) | 2009-03-05 | 2013-01-22 | Ricoh Company, Ltd. | Fixing device and image forming apparatus incorporating same |
US8380114B2 (en) | 2009-03-12 | 2013-02-19 | Ricoh Company, Ltd. | Image forming apparatus and method |
US8406666B2 (en) | 2009-06-03 | 2013-03-26 | Ricoh Company, Limited | Image forming apparatus having a guide assembly between a fixing unit and conveyance unit, the guide assembly including first and second guide members |
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