JPH04194015A - Production of acrylonitrile-based fiber - Google Patents
Production of acrylonitrile-based fiberInfo
- Publication number
- JPH04194015A JPH04194015A JP32260790A JP32260790A JPH04194015A JP H04194015 A JPH04194015 A JP H04194015A JP 32260790 A JP32260790 A JP 32260790A JP 32260790 A JP32260790 A JP 32260790A JP H04194015 A JPH04194015 A JP H04194015A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- acrylonitrile
- steam
- deposited
- net
- 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
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 238000004804 winding Methods 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 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
- 239000004677 Nylon Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 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
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000007704 transition Effects 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はアクリロニトリル系繊維の製造法に関する。さ
らに詳しくは、アクリロニトリル系繊維を無緊張下で収
縮処理するアクリロニトリル系繊維の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing acrylonitrile fibers. More specifically, the present invention relates to a method for producing acrylonitrile fibers in which the acrylonitrile fibers are subjected to shrinkage treatment without tension.
従来、アクリロニトリル系繊維の製造ては、紡糸原液調
整、凝固、洗浄、延伸、乾燥、捲取という基本的工程か
採用されている。しかし、アクリロニトリル系繊維の糸
質は、ポリエステル、ナイロン等に比較して十分とは言
えず、アクリロニトリル系繊維にフィブリル化しにくい
糸質を与えるには延伸糸を高温度で３５％以下、好まし
くは２０％〜３５％収縮させることか必要とされている
。ここで収縮とは延伸糸の元の長さから縮んだ割合を言
う。このような収縮処理を好適に行なう方法として例え
ば特開昭５２−２７８２５号公報では、糸条をネット上
に積み重ねて無緊張下で乾燥処理を行なう方法が開示さ
れている。このような方法では確かに良質な繊維を得る
ことかできるが、積み重ねられた糸条は互いに絡み合い
易く、次の工程へ送る場合に絡み合いによる問題が生じ
易い。Conventionally, the basic steps of manufacturing acrylonitrile fibers include preparing a spinning solution, coagulating, washing, stretching, drying, and winding. However, the yarn quality of acrylonitrile fibers is not sufficient compared to polyester, nylon, etc., and in order to give acrylonitrile fibers a yarn quality that is difficult to fibrillate, the drawn yarn is drawn at a high temperature to 35% or less, preferably 20% % to 35% shrinkage is required. Here, shrinkage refers to the shrinkage rate of the drawn yarn from its original length. For example, Japanese Patent Application Laid-Open No. 52-27825 discloses a method for suitably carrying out such shrinkage treatment, in which yarns are piled up on a net and dried under no tension. Although it is possible to obtain high-quality fibers using this method, the stacked yarns tend to get entangled with each other, and problems due to entanglement tend to occur when the yarns are sent to the next step.
従来の方法では複数の糸条をネット上に積み重ねて無緊
張下で処理をした場合互いの糸条か部分的に重なり、捲
取り時に絡み合いによる切糸などの問題か発生する。本
発明の目的はこれらの問題点を解決しようとするもので
ある。In the conventional method, when a plurality of threads are stacked on a net and processed under no tension, the threads partially overlap each other, causing problems such as thread cutting due to entanglement during winding. The object of the present invention is to solve these problems.
本発明者らは、従来の問題点を解決するために鋭意研究
を重だ結果、本発明を完成したのである。The present inventors completed the present invention as a result of intensive research to solve the conventional problems.
即ち、本発明は、アクリロニトリル系繊維の製造法にお
いで、糸条を蒸気で加熱しながら多羽根型ローラで、移
動する無端ネット上に堆積させた後、加熱し捲取ること
を特徴とするアクリロニトリル系繊維の製造法、である
。That is, the present invention provides a method for producing acrylonitrile fiber, which is characterized in that the yarn is heated with steam and deposited on a moving endless net using a multi-blade roller, and then heated and wound up. This is a method for producing fibers based on fibers.
本発明に於けるアクリロニトリル系ポリマーとしてはポ
リアクリロニトリル、アクリロニトリルと共重合可能な
１種又はそれ以上のビニル又はアリル化合物との共重合
体であり、アクリロニトリルを少くとも８５重量％以上
含んだポリマーか好んで使用される。The acrylonitrile-based polymer in the present invention is polyacrylonitrile, a copolymer of acrylonitrile and one or more types of vinyl or allyl compounds copolymerizable, and preferably a polymer containing at least 85% by weight of acrylonitrile. It is used in
このようなアクリロニトリル系ポリマーをジメチルホル
ムアミド、ジメチルアセトアミド、ジメチルスルホキシ
ドなどの有機溶剤や硝酸、塩化亜鉛の水溶液などの無機
溶剤に溶解して紡糸原液となし、これを乾式、湿式紡糸
法などによって紡糸し、糸条を製造する。Such an acrylonitrile-based polymer is dissolved in an organic solvent such as dimethylformamide, dimethylacetamide, or dimethyl sulfoxide, or an inorganic solvent such as an aqueous solution of nitric acid or zinc chloride to obtain a spinning stock solution, which is then spun using a dry or wet spinning method. , manufacture yarn.
本発明における糸条とは、凝固を終了した後の未延伸糸
および延伸糸を意味し、溶剤を含んていても、含んでい
なくても適用される。The yarn in the present invention refers to undrawn yarn and drawn yarn after coagulation, and is applicable whether or not a solvent is included.
次に本発明を図面を引用しつつ詳細に説明する。Next, the present invention will be explained in detail with reference to the drawings.
第１図は本発明に用いる多羽根型ローラの実施例を示す
概略説明図である。FIG. 1 is a schematic explanatory diagram showing an embodiment of a multi-blade type roller used in the present invention.
加熱ボックス（３）には蒸気の供給口（４）より内部に
蒸気が供給されている。一対の多羽根型ローラ（２）は
加熱ボックスの中に配置されており、糸条（１）は加熱
ボックスの中へ導かれ、まず蒸気と接触し、加熱される
。更に多羽根型ローラの多羽根部分（２ａ）に接触し、
波状の振動作用を受けつつ布ネット（６）上に無緊張状
態で堆積される。Steam is supplied into the heating box (3) from a steam supply port (4). A pair of multi-blade rollers (2) are placed in a heating box, and the yarn (1) is guided into the heating box and first comes into contact with steam and is heated. Furthermore, it comes into contact with the multi-blade portion (2a) of the multi-blade roller,
It is deposited without tension on the cloth net (6) while being subjected to wave-like vibration action.
布ネットは移動する無端のネットであり、移動する全網
製の無端ネット７）との間に無緊張状態で堆積された糸
条のシート（５）をはさみ、次工程へ移る。糸条か溶剤
を含んでいる場合には、無端ネット上で洗浄をし、続い
て熱風で加熱することにより無緊張下で乾燥し、捲取ら
れる。糸条か既に洗浄を終えた延伸糸である場合には、
熱風で加熱することにより無緊張下て乾燥し、捲取られ
る。また、必要により蒸気による加熱処理を施すことも
可能である。The cloth net is a moving endless net, and the thread sheet (5) deposited without tension is sandwiched between it and the moving endless net 7), and the process moves to the next step. If the yarn contains a solvent, it is washed on an endless net, then dried under no tension by heating with hot air, and then rolled up. If it is yarn or drawn yarn that has already been washed,
It is dried under no tension by heating with hot air and then rolled up. Further, it is also possible to perform heat treatment using steam if necessary.
本発明で最も特徴とするところは、糸条を蒸気で加熱し
ながら、多羽根型ローラで無端ネット上に堆積させるこ
とである。第２図は多羽根型ローラの部分拡大斜視図で
ある。多羽根型ローラの材質は金属であることか好まし
い。即ち、金属であることにより糸条との接触加熱がよ
り促進され、本発明の目的を有利に達し得るのである。The most distinctive feature of the present invention is that the yarn is deposited on an endless net using a multi-blade roller while being heated with steam. FIG. 2 is a partially enlarged perspective view of the multi-blade roller. The material of the multi-blade roller is preferably metal. That is, by being made of metal, contact heating with the yarn is further promoted, and the object of the present invention can be advantageously achieved.
糸条に多羽根型ローラで波状の振動を均一に与えるには
、糸条の柔軟性か極めて重要である。特に多羽根部分で
屈曲される糸条部分は十分な柔軟性か必要となる。この
様な柔軟性を糸条に付与することができる糸条の温度と
しては、アクリロニトリル系繊維の場合は８０°Ｃ以上
か好ましい。In order to uniformly apply wave-like vibrations to the yarn using a multi-blade roller, the flexibility of the yarn is extremely important. In particular, the yarn portion that is bent at the multi-feather portion needs to have sufficient flexibility. The temperature of the yarn that can impart such flexibility to the yarn is preferably 80° C. or higher in the case of acrylonitrile fibers.
糸条に十分な柔軟性を付与できない場合には第３図に示
したように、無端ネット上に堆積した糸条のシート（８
）に乱れか生じ、複数の糸条を併列して処理をする工業
的方法に於いては、乱れた糸条（９）による隣り合うシ
ートへの絡み合いにより捲取りでの切糸の問題か生ずる
。If sufficient flexibility cannot be imparted to the yarn, as shown in Figure 3, a sheet of yarn (8
), and in industrial methods where multiple yarns are processed in parallel, the problem of thread cutting during winding occurs due to entanglement of the disordered yarns (9) with adjacent sheets. .
本発明の方法はアクリロニトリル系繊維を蒸気で加熱す
ることにより優れた効果を発揮する。即ち、アクリロニ
トリル系繊維の二次転移点以上に加熱するところに特徴
があると考えられるか、同様に熱可塑性合成繊維である
ナイロン、ポリエステルなどに対しても本発明は適用し
うるものである。The method of the present invention exhibits excellent effects by heating acrylonitrile fibers with steam. That is, it is considered that the characteristic is that the acrylonitrile fiber is heated to a temperature higher than the secondary transition point, and the present invention can also be applied to thermoplastic synthetic fibers such as nylon and polyester.
以下、本発明を実施例により説明する。 The present invention will be explained below with reference to Examples.
尚、ことわりの無い限り％は重量％を示す。In addition, unless otherwise specified, % indicates weight %.
実施例１
アクリロニトリル９２％、アクリル酸メチル７．５％、
メタリルスルホン酸リーダ０．５％て常法に従っで、重
量平均分子量８万の共重合体を得た。Example 1 Acrylonitrile 92%, methyl acrylate 7.5%,
A copolymer having a weight average molecular weight of 80,000 was obtained using a conventional method using 0.5% methallylsulfonic acid leader.
６９％の硝酸水溶液に溶解しで、ポリマー濃度１５％の
紡糸原液を作り、ＩＯ錘の直径０．１０ｍｍの孔６０個
を有する紡糸口金から押し出し、５％の硝酸水溶液の凝
固浴で凝固した後、水洗、延伸した。この延伸糸条の乾
燥後のデニールか７５ｄ／６０ｆとなるように条件を設
定した。A spinning stock solution with a polymer concentration of 15% was prepared by dissolving it in a 69% nitric acid aqueous solution, extruded through a spinneret with an IO spindle having 60 holes with a diameter of 0.10 mm, and coagulated in a coagulation bath of a 5% nitric acid aqueous solution. , washed with water, and stretched. Conditions were set so that the denier of the drawn yarn after drying was 75d/60f.
この延伸糸条に第１図に示すような金属製の多羽根型ロ
ーラからなる装置を用い、振動を与え、糸条の錘間ピッ
チを２０鵬とし、糸条のシート幅が１７ｍｍ、２０００
ｍ／ｍｉｎの速度でネット上に堆積させた。この時、
糸条は蒸気て８５°Ｃまで加熱しておいた。堆積させた
糸条のシートには乱れか無く、１２０°Ｃで無緊張状態
で乾燥した後、１４００ ｍ／ｍｉｎの速度で１０錘と
も問題なく捲取れた。This drawn yarn was vibrated using a device consisting of a multi-blade metal roller as shown in Fig. 1, and the pitch between the spindles of the yarn was set to 20 mm, and the sheet width of the yarn was 17 mm.
It was deposited on the net at a speed of m/min. At this time,
The yarn was heated to 85°C using steam. There was no disturbance in the deposited yarn sheet, and after drying at 120°C without tension, all 10 spindles could be wound up at a speed of 1400 m/min without any problem.
比較例１
比較のために蒸気での糸条の加熱をやめた以外は上記実
施例１と同様の操作を行った。堆積させた糸条のシート
には第２図のに示すような乱れ（９）か甚しく、この乱
れか絡み合い、切糸により安定して捲取ることかできな
かった。Comparative Example 1 For comparison, the same operation as in Example 1 was carried out except that the heating of the yarn with steam was stopped. The deposited yarn sheet had severe turbulence (9) as shown in Figure 2, and the turbulence and entanglement made it impossible to wind it up stably with the cutting thread.
本発明によれは、ネット上に堆積した糸条のシートに乱
れか無いので、複数の糸条を並列して処理をする工業的
方法に於いで、そのピッチを小さくして育利に無緊張下
で加熱処理を施した後、切糸なとの問題なく安定して捲
取ることかできる。According to the present invention, since there is only disturbance in the sheets of yarn accumulated on the net, the pitch can be reduced in industrial methods in which multiple yarns are processed in parallel, so that there is no strain on the growth. After being heat-treated at the bottom, it can be wound up stably without any problems with cutting the threads.
第１図は本発明における多羽根型ローラの実施例を示す
概略説明図、第２図は多羽根梨ローラの部分拡大斜視図
、第３図は多羽根型ローラでネット上に堆積した糸条の
状態を示すシートの平面図である。
１−糸条、２−多羽根型ローラ、３−加熱ボックス、４
−蒸気の供給口、５−糸条のシート、６−布ネット、７
−・無端ネット、９−乱れた糸条特許出願人 旭化成
工業株式会社Fig. 1 is a schematic explanatory diagram showing an embodiment of the multi-blade type roller in the present invention, Fig. 2 is a partially enlarged perspective view of the multi-blade pear roller, and Fig. 3 is a yarn deposited on the net by the multi-blade type roller. FIG. 3 is a plan view of the sheet showing the state of FIG. 1- Yarn, 2- Multi-blade roller, 3- Heating box, 4
- Steam supply port, 5 - Yarn sheet, 6 - Cloth net, 7
- Endless Net, 9- Disturbed thread patent applicant Asahi Kasei Industries, Ltd.
Claims (1)
蒸気で加熱しながら多羽根型ローラで、移動する無端ネ
ット上に堆積させた後、加熱し捲取ることを特徴とする
アクリロニトリル系繊維の製造法。1. A method for producing acrylonitrile fiber, which is characterized in that the yarn is heated with steam and deposited on a moving endless net using a multi-blade roller, and then heated and wound. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32260790A JP2613973B2 (en) | 1990-11-28 | 1990-11-28 | Method for producing acrylonitrile fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32260790A JP2613973B2 (en) | 1990-11-28 | 1990-11-28 | Method for producing acrylonitrile fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04194015A true JPH04194015A (en) | 1992-07-14 |
| JP2613973B2 JP2613973B2 (en) | 1997-05-28 |
Family
ID=18145603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32260790A Expired - Fee Related JP2613973B2 (en) | 1990-11-28 | 1990-11-28 | Method for producing acrylonitrile fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613973B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001279518A (en) * | 2000-01-28 | 2001-10-10 | Kanegafuchi Chem Ind Co Ltd | Method and apparatus for removing solvent in acrylic yarn |
-
1990
- 1990-11-28 JP JP32260790A patent/JP2613973B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001279518A (en) * | 2000-01-28 | 2001-10-10 | Kanegafuchi Chem Ind Co Ltd | Method and apparatus for removing solvent in acrylic yarn |
| JP4521999B2 (en) * | 2000-01-28 | 2010-08-11 | 株式会社カネカ | Method and apparatus for removing solvent from acrylic fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2613973B2 (en) | 1997-05-28 |
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