JPS6047932B2 - Method for producing fibers with good defibration properties - Google Patents

Method for producing fibers with good defibration properties

Info

Publication number
JPS6047932B2
JPS6047932B2 JP6273077A JP6273077A JPS6047932B2 JP S6047932 B2 JPS6047932 B2 JP S6047932B2 JP 6273077 A JP6273077 A JP 6273077A JP 6273077 A JP6273077 A JP 6273077A JP S6047932 B2 JPS6047932 B2 JP S6047932B2
Authority
JP
Japan
Prior art keywords
fibers
sodium
sulfate
formulas
tables
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP6273077A
Other languages
Japanese (ja)
Other versions
JPS53147811A (en
Inventor
泰彦 瀬川
英樹 袖木
吉郎 松田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP6273077A priority Critical patent/JPS6047932B2/en
Publication of JPS53147811A publication Critical patent/JPS53147811A/en
Publication of JPS6047932B2 publication Critical patent/JPS6047932B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、共重合芳香族ポリアミドからなる解繊性の良
好な繊維の製造方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing fibers made of copolymerized aromatic polyamide and having good defibration properties.

更に詳しくは、熱延伸時に単繊維同士の融着が生ずるよ
うな共重合芳香族ポリアミドから、かかる融着がなく解
繊性の良好な繊維を製造する方法に関するものである。
従来技術 最近、高強力高ヤング率の性能を有し、耐熱性において
も優れた芳香族コポリアミド繊維(特開昭51−134
743号公報、特開昭49−62720号公報参照)が
注目されているが、これらの繊維を高温で熱延伸又は熱
処理する際に、糸条を構成する単繊維同士が接触すると
、それらの単繊維間に融着しJた部分が生じる性質を有
する。
More specifically, the present invention relates to a method for producing fibers that are free from fusion and have good fibrillation properties from a copolymerized aromatic polyamide in which fusion between single fibers occurs during hot drawing.
Prior Art Recently, aromatic copolyamide fibers (Japanese Unexamined Patent Publication No. 51-134
743, Japanese Patent Application Laid-open No. 49-62720), when these fibers are hot-stretched or heat-treated at high temperatures, if the single fibers that make up the yarn come into contact with each other, the single fibers will be damaged. It has the property of forming fused parts between the fibers.

これらの熱延伸時融着性を有する繊維の中には単繊維と
しては高性能を発揮するにもかかわらす、多繊維束を通
常の方法て延伸すると単繊維間融着が著しい繊維束しか
得られない為に、その集・合体としての性能が激減して
実用化し難いものが多くある。
Although some of these fibers that have fusion properties during hot drawing exhibit high performance as single fibers, when a multi-filament bundle is drawn using a normal method, only fiber bundles with significant fusion between single fibers can be obtained. Therefore, there are many products that are difficult to put into practical use because their performance as a collection or combination is drastically reduced.

これらの繊維は高性能のローブ、ラグス、ゴム補強用あ
るいはプラスチック補強用繊維素材として注目されるも
のであるが、前記理由から工業的規模での大量生産が著
しく困難である。
These fibers are attracting attention as fiber materials for high-performance robes, rugs, rubber reinforcement, or plastic reinforcement, but for the reasons mentioned above, mass production on an industrial scale is extremely difficult.

すなわち、これらの繊維素材は直線性の優れた分子構造
を有するが共重合ポリマーであるために、未延伸繊維の
配向結晶化は充分でなく、高温の条件下で繊維を半溶融
の状態で延伸して配向結晶化を進める必要がある。゛こ
の時粘着性を帯びた単繊維が相互に接触すると融着を起
こし易い。単繊維間の融着を起こした糸条は、しなやか
さを欠き、加熱に伴つて強力利用率が低下し、結節を生
じた場合切断強度が低下するなどの現象を呈する。
In other words, these fiber materials have a molecular structure with excellent linearity, but because they are copolymerized polymers, the orientational crystallization of undrawn fibers is not sufficient, and the fibers are drawn in a semi-molten state under high temperature conditions. It is necessary to proceed with oriented crystallization.゛At this time, if the sticky single fibers come into contact with each other, fusion is likely to occur. Yarns with fusion between single fibers lack pliability, exhibit phenomena such as a decrease in strength utilization as they are heated, and a decrease in cutting strength when knots occur.

これらの現象はローブ、タイヤコード等に使用する場合
に単繊維性能のポテンシャルを充分に発揮させるには全
く不都合なものである。また樹脂等に単繊維を分散せし
めて繊維強化剤を作る際にも、融着した部分が存在する
と単繊維の分散が不均一となり欠陥部を作り易くなる。
あるいは衣料用(上記例のような素材においては特に防
護衣の分野が注目される)に使用する場合にも、しなや
かさを欠いた繊維は肌ざわりが悪く、体にフイツトしに
くい。この問題を解決するために、芳香族コポリアミド
ヒドラジド繊維に於いては、特開昭49−93612,
号公報にみられるように、ポリエチレンポリアミン系カ
チオン活性剤、多価アルコールエステル類、シリコン系
油剤を該繊維に付与して融着の少ない(解繊性の優れた
)繊維を得ることが提案されている。
These phenomena are completely inconvenient for fully demonstrating the potential of single fiber performance when used in lobes, tire cords, etc. Furthermore, when making a fiber reinforcing agent by dispersing single fibers in a resin or the like, if there are fused parts, the single fibers will not be uniformly dispersed and defects will easily occur.
Alternatively, when used for clothing (materials such as those in the above example are particularly noteworthy in the field of protective clothing), fibers that lack flexibility have a poor texture and are difficult to fit around the body. In order to solve this problem, in aromatic copolyamide hydrazide fiber, Japanese Patent Application Laid-Open No. 49-93612,
As seen in the publication, it has been proposed to obtain fibers with less fusion (excellent fibrillation properties) by adding polyethylene polyamine cationic activators, polyhydric alcohol esters, and silicone oils to the fibers. ing.

この方法は芳香族コポリアミドヒドラ.ジト繊維に対し
ては効果のある方法てあるが、他の繊維、例えばさらに
高温て延伸又は熱処理をほどこす芳香族コポリアミド繊
維に対しては効果がないし、高温になるほど油剤の変性
も激しくなり、タール状に変性した油剤は繊維の接着性
に害.”を及ぼすようになる。発明の目的 本発明は、ある種の共重合芳香族ポリアミドからなる繊
維の製造に特有の高温下での熱延伸又は熱処理における
単繊維間の融着発生、強度低下、・単繊維間の糸質のバ
ラツキ等の問題を解決し、これらの繊維の工業的大量生
産を実現することを目的とするものてある。
This method is used for aromatic copolyamide hydra. Although there are methods that are effective for dito fibers, they are not effective for other fibers, such as aromatic copolyamide fibers that are stretched or heat-treated at higher temperatures, and the higher the temperature, the more denaturation of the oil agent occurs. The tar-like modified oil is harmful to the adhesion of fibers. Object of the Invention The present invention aims to solve problems such as occurrence of fusion between single fibers, decrease in strength, and - The purpose is to solve problems such as variations in yarn quality between single fibers and realize industrial mass production of these fibers.

発明の構成 本発明は、熱延伸又は熱処理時に融着を生ずるような共
重合芳香族ポリアミドの繊維を熱延伸又は熱処理するに
際し、あらかじめ該繊維に特定の非融着化剤を塗布した
後、熱延伸又は熱処理を行なうことにより、良好な解繊
性を有する、単繊維間の糸質のバラツキの少ない繊維を
製造する方法である。
Structure of the Invention The present invention provides a method for hot-drawing or heat-treating copolymerized aromatic polyamide fibers that cause fusion during hot-drawing or heat treatment, after applying a specific non-fusing agent to the fibers in advance. This is a method for producing fibers with good fibrillation properties and less variation in yarn quality between single fibers by performing drawing or heat treatment.

具体的には、下記構成単位CA)(B)及び(C)から
構成され、かつ構成単位(C)の共重合割合が全構成単
位の15〜40モル%の範囲てあつて、かつ(4)と(
C)の合計モル数と(B)のモル数とが実質的に等しい
芳香族コポリアミドからなる繊維を熱延伸又は熱処理す
るに際し、該繊維に下記(a)〜(d)のうちより選は
れた少くとも1種の非融着化剤を付着せしめることを特
徴とする解繊性の良好な繊維の製造法てある。(a)塩
化ナトリウム又は塩化カルシウムの水溶液、(b)硝酸
ナトリウム、硝酸鉄、硫酸ナトリウム、硫酸マグネシウ
ム、硫酸銅又は硫酸鉄の水溶液、(C)オルトリン酸又
はオルトリン酸ナトリウム塩の水溶液、(d)ポリエチ
レン又はエポキシポリブタジエンの水性エマルジョン。
Specifically, it is composed of the following structural units CA) (B) and (C), and the copolymerization ratio of the structural unit (C) is in the range of 15 to 40 mol% of the total structural units, and (4 )and(
When hot-stretching or heat-treating a fiber made of an aromatic copolyamide in which the total number of moles of C) and the number of moles of (B) are substantially equal, the fiber may be treated with a material selected from among the following (a) to (d). There is a method for producing fibers with good defibration properties, which is characterized by adhering at least one non-fusing agent. (a) an aqueous solution of sodium chloride or calcium chloride; (b) an aqueous solution of sodium nitrate, iron nitrate, sodium sulfate, magnesium sulfate, copper sulfate or iron sulfate; (C) an aqueous solution of orthophosphoric acid or orthophosphate sodium salt; (d) Aqueous emulsion of polyethylene or epoxy polybutadiene.

本発明において非融着化剤として効果のあるものの具体
例としては、(a)ハロゲン化金属塩の場合、 (但し、Mは元素の陶期律表の族の番号であり、Nは周
期の番号である。
Specific examples of substances effective as non-fusing agents in the present invention include (a) metal halide salts (where M is the number of the group in the Porcelain Table of Elements, and N is the periodicity number); It's a number.

)を満足する水溶性ハロゲン化金属塩が好ましい。) A water-soluble metal halide salt that satisfies the following is preferred.

塩化ナトリウム、塩化カルシウム等は繊維の強度を低下
させないで、非融着化の効果がある好ましいハロゲン化
金属塩である。これに対し、塩化リチウム、塩化マグネ
シウム、塩化第一(:)鉄等は繊維の強度を低下させ、
しかも非融着化の効果がなく、むしろ融着が進行するの
で好ましくない。(1)式が成立するものが効果的であ
る理由については詳しいことは定かでないが、おそらく
ハロゲンの活性度に関係しているのであろうと思われる
。(b)硫酸金属塩、硝酸金属塩は、ほとんどすべての
水溶性塩が好適に使用されうる。
Sodium chloride, calcium chloride, and the like are preferred metal halide salts that have a non-fusion effect without reducing the strength of the fibers. On the other hand, lithium chloride, magnesium chloride, ferrous (:) chloride, etc. reduce the strength of the fibers,
Furthermore, this is not preferable because it does not have the effect of preventing fusion and instead progresses fusion. Although it is not clear in detail why those that satisfy formula (1) are effective, it is probably related to the activity of the halogen. (b) As the metal sulfate and metal nitrate, almost all water-soluble salts can be suitably used.

具体的には硫酸ナトリウム、硫酸マグネシウム、硝酸銅
、硫酸第一鉄等の硫酸金属塩と、硝酸ナトリウム、硝酸
第一鉄等の硝酸金属塩があげられる。硝酸カルシウム、
硝酸バリウム等のいわゆる不溶性の硫酸金属塩も効果は
あるが、取り扱いは困難てある。(C)リン酸系の無機
物質には非融着化に寄与するものとしないものがある。
Specific examples include metal sulfates such as sodium sulfate, magnesium sulfate, copper nitrate, and ferrous sulfate, and metal nitrates such as sodium nitrate and ferrous nitrate. calcium nitrate,
So-called insoluble metal sulfates such as barium nitrate are also effective, but they are difficult to handle. (C) Some phosphoric acid-based inorganic substances contribute to non-fusion and others do not.

オルトリン酸及びオルトリン酸ナトリウムは非融着化に
有効てあ,る。これに対して、第一リン酸ナトリウム、
第二リン酸ナトリウム、リン酸アンモニウム等はむしろ
融着化を助長する。これら非融着化に効果のある無機物
質の作用機構は充分には解明されていないが、一つには
−繊維表面か直接接触するのを隔離する機構があり、も
う一つには繊維表面を架橋等で不融化する機構もあるの
てあろう。
Orthophosphoric acid and sodium orthophosphate are effective for non-bonding. In contrast, monobasic sodium phosphate,
Dibasic sodium phosphate, ammonium phosphate, etc. rather promote fusion. The mechanism of action of these inorganic substances that are effective in preventing fusion is not fully understood, but one is a mechanism that isolates direct contact with the fiber surface, and the other is a mechanism that isolates the fiber surface from direct contact with the fiber surface. There may be a mechanism to make it infusible by cross-linking, etc.

前者の機構は硫酸金属塩に於いて顕著に存在するようで
あり、後者の機構はリン酸及びその塩に於いて存在する
ようてある。ハロゲン化金属塩は両機構を兼ね備えてい
るようである。これらの有効な無機物質は、繊維の熱延
伸又は熱処理に先立ち、水溶液の形て繊維に塗布し、乾
燥して延伸し、熱延伸の後に水洗をして除去するのが好
ましい。
The former mechanism appears to be significantly present in metal sulfates, and the latter mechanism appears to be present in phosphoric acid and its salts. Metal halide salts appear to have both mechanisms. These effective inorganic substances are preferably applied to the fibers in the form of an aqueous solution prior to hot drawing or heat treatment of the fibers, dried and drawn, and removed by washing with water after hot drawing.

水溶液の濃度は飽和溶液から0.1%濃度にまて変化さ
せても充分非融着化の効果かある。選定した無機塩の効
果度と繊維への付着量とを検討して定めるべきである。
(d)非融着化に効果のある有機物質としては繊維の熱
延伸又は熱処理の温度以下の空気雰囲気中て炭化反応及
ひ/又は架橋化を生じる脂肪族高分子であり、具体的に
は、ポリエチレン、エポキシポリブタジエン等がある。
Even if the concentration of the aqueous solution is varied from a saturated solution to a concentration of 0.1%, there is a sufficient effect of preventing fusion. It should be determined by considering the effectiveness of the selected inorganic salt and the amount of adhesion to the fibers.
(d) Organic substances effective in non-bonding include aliphatic polymers that undergo carbonization and/or crosslinking in an air atmosphere at temperatures below the temperature of hot drawing or heat treatment of fibers; specifically, , polyethylene, epoxy polybutadiene, etc.

これらは水溶性エマルジョンとして繊維に塗布され、乾
燥の後、これら脂肪族高分子の溶融状態を経て、熱延伸
に先立ち、あるいはほとんど熱延伸と同時に炭化又は架
橋化せしめると非融着化の効果は抜群である。またこれ
ら脂肪族高分子の炭化又は架橋化物は延伸後除去しても
よいし、用途によつては除去しなくてもよい。繊維への
これら脂肪族高分子の付着量を適当に制御すれは、接着
性にも害を及ぼさず、むしろ除去しない方が好ましい場
合もある。上の(a)〜(d)の非融着化剤の使は、特
に接触式の熱板等を用いて熱延伸又は熱処理する場合に
於いて有効であるが、気体加熱方式の場合にも効果的で
ある。
These are applied to the fibers as a water-soluble emulsion, and after drying, the aliphatic polymers are in a molten state and then carbonized or crosslinked prior to hot stretching or almost simultaneously with hot stretching. It's outstanding. Further, carbonized or crosslinked products of these aliphatic polymers may be removed after stretching, or may not be removed depending on the use. By appropriately controlling the amount of these aliphatic polymers attached to the fibers, they do not adversely affect the adhesion, and in some cases it may be preferable not to remove them. The use of non-fusing agents in (a) to (d) above is particularly effective when hot stretching or heat treatment is performed using a contact hot plate, etc., but it is also effective when using a gas heating method. Effective.

またこのような非融着化剤の使用に加え、糸条を単繊維
に分繊し、単繊維同士の接触を少なくする物理的方法と
を併用すると一層効果を大にする。例えば、熱延伸又は
熱処理の前に金属の表面上て擦過するとか、静電気を印
加する等の方法が有効であり、また熱延伸又は熱処理後
に繊維の走行方向に垂直な流れを有する液と接触せしめ
る方法も採用しうる。発明の効果 以上の如き本発明方法によれば、単繊維間の融着が少な
く、単繊維間の強度のバラツキも少なく、強度、伸度、
ヤング率等の特性が良好な共重合芳香族ポリアミド繊維
を工業的に製造することができる。
Further, in addition to the use of such a non-fusing agent, the effect will be further enhanced if a physical method is used in which the yarn is split into single fibers and the contact between the single fibers is reduced. For example, methods such as rubbing the surface of the metal or applying static electricity before hot drawing or heat treatment are effective, and methods such as bringing the metal into contact with a liquid that flows perpendicular to the running direction of the fiber after hot drawing or heat treatment are effective. method can also be adopted. Effects of the Invention According to the method of the present invention as described above, there is little fusion between single fibers, there is little variation in strength between single fibers, and the strength, elongation,
Copolymerized aromatic polyamide fibers having good properties such as Young's modulus can be industrially produced.

実施例 次に本発明を実施例によつて説明する。Example Next, the present invention will be explained with reference to examples.

なお以下の例において用いる主な特性値は次の如くであ
る。(1)ポリマーの固有粘度、1.V.(Irlll
erentviscOsity)オストワルド型粘度管
を用い、溶媒のみの流下時間をT。
The main characteristic values used in the following examples are as follows. (1) Intrinsic viscosity of polymer, 1. V. (Irllll
erentviscOsity) Using an Ostwald type viscosity tube, the flow time of only the solvent is T.

(秒)、ポリマーの希薄溶液の流下時間をt(秒)、該
希薄溶液中のポリマー濃度をC(y/De)とすると、
て表わされる。
(seconds), the flowing time of a dilute polymer solution is t (seconds), and the polymer concentration in the dilute solution is C(y/De).
It is expressed as

とくに断わらない限り、溶媒は97.5%硫酸,C=0
.5y/Deとし、30゜Cで測定する。(2)繊維の
引張特性 インストロン引張試験機により、初長5cm1引張速度
5Crr1/分とし、20℃、65%RHの雰囲気中て
荷伸曲線を測定する。
Unless otherwise specified, solvent is 97.5% sulfuric acid, C=0
.. 5y/De and measure at 30°C. (2) Tensile properties of fibers Using an Instron tensile tester, the stretching curve is measured at an initial length of 5 cm and a tensile rate of 5 Crr1/min in an atmosphere of 20° C. and 65% RH.

これより、強度S(y/De)、伸度E(%)、ヤング
率Y(y/De)を算出する。(3)平均融着数,f ヤーン中に本来存在すべき単繊維(フィラメント)、熱
延伸又は熱処理後の糸条(ヤーン)について実際に数え
られたフィラメントの数で割つた値を用いる。
From this, strength S (y/De), elongation E (%), and Young's modulus Y (y/De) are calculated. (3) Average number of fusions, f A value is used that is divided by the number of filaments actually counted in the single fibers (filaments) that should originally exist in the yarn, and the yarns (yarns) after hot drawing or heat treatment.

即ち、熱延伸又は熱処理後のフィラメント1本が、平均
して何本の単繊維の融着で構成されているかを示す。(
4)強力利用率,R 所定の撚り数に撚糸したコードの強度を10C7!あた
り5回の撚りをかけたときの強度で割り、百分率で表示
する。
That is, it shows how many single fibers are fused on average to form one filament after hot drawing or heat treatment. (
4) Strength utilization rate, R The strength of the cord twisted to the specified number of twists is 10C7! Divide by the strength when twisting 5 times and display as a percentage.

(5)単繊維強度のバラツキ,σ 単繊維強度の標準偏差(σ)を求め、強度のバラツキの
測定とした。
(5) Variation in single fiber strength, σ The standard deviation (σ) of single fiber strength was determined and used as a measurement of strength variation.

実施例1 下記のモノマー単位 により構成される、1.V.=2.9の芳香族コポリア
ミドを、Cacf2を含有するN−メチルー2−ピロリ
ドン(NMP)に6重量%溶解せしめたポリマー溶液を
孔径0.3wrm1001L,の口金から吐出し、70
℃のNMP/水(40/6唾量%)からなる凝固浴ノに
て凝固させ、10m/分にて巻き上げ、つづいて90℃
の温水中でネルソンロールにより1吟間水洗し、さらに
110℃て乾燥後、各種物質の水溶液又は水性エマルジ
ョンを塗布するか、又は塗布しないで、240゜Cの乾
燥ローラーで充分乾燥して、糸.中の残存NMP量を0
.5%0.w.f.以下にせしめた。
Example 1 Composed of the following monomer units: 1. V. A polymer solution prepared by dissolving 6% by weight of aromatic copolyamide of = 2.9 in N-methyl-2-pyrrolidone (NMP) containing Cacf2 was discharged from a nozzle with a pore size of 0.3 wrm and 1001 L.
It was coagulated in a coagulation bath consisting of NMP/water (40/6 saliva %) at 100°C, rolled up at 10 m/min, and then heated at 90°C.
The yarn is washed for 1 minute with a Nelson roll in hot water at .. The amount of remaining NMP inside is reduced to 0.
.. 5%0. w. f. I made it below.

これに連続して495℃の温度帯が80cmあり、かつ
長さBdにわたり410℃以上の温度帯がある。幅4c
mの熱板に接触させながら、繊維を延伸倍率9倍で延伸
し、1771.の温水洗を終えた後、余分な水゛分をふ
り切り、ついて油剤を付与して巻取つた(最終巻取り速
度=90TrL/分)。この繊維は410℃以上で加熱
体に接触すると融着する性質のものであり、繊維が熱板
に接触する以前に非融着化剤を塗布しなかつた場合は、
繊維は著しく融着していた。
There is a continuous temperature zone of 495° C. for 80 cm, and there is a temperature zone of 410° C. or higher over the length Bd. Width 4c
The fibers were stretched at a stretching ratio of 9 times while being in contact with a hot plate of 1771.m. After washing with warm water, excess water was shaken off, an oil was applied, and the film was wound (final winding speed = 90 TrL/min). These fibers have the property of fusing when they come into contact with a heating element at temperatures above 410°C, and if a non-fusing agent is not applied to the fibers before they come into contact with the heating plate,
The fibers were significantly fused.

一方本発明で特定した非融着化剤の水溶液又はエマルジ
ョンを塗布した場合は、解繊性の良好な繊維が得られた
。各々の場合の特性を表1及び表2に示す。なお非融着
化剤塗布のローラーは、通常のオイリングローラータイ
プのものであり、直径4C7r1で、60r′Pmの回
転数を有しており、繊維は約1crn接触する。また、
糸質はマルチフィラメントヤーンの値である。次に実験
NO.3−3とNO.l2の単繊維の強度のバラツキσ
(標準偏差)をとると、それぞれσ=2.8y/De,
4.7y/Deであつた。
On the other hand, when an aqueous solution or emulsion of the non-fusing agent specified in the present invention was applied, fibers with good defibration properties were obtained. The characteristics in each case are shown in Tables 1 and 2. The roller coated with the non-fusing agent is a normal oiling roller type, has a diameter of 4C7r1, has a rotational speed of 60r'Pm, and contacts the fibers at about 1 crn. Also,
Yarn quality is the value of multifilament yarn. Next, experiment No. 3-3 and NO. Variation in the strength of single fibers σ of l2
(standard deviation), σ=2.8y/De,
It was 4.7y/De.

(測定試料数は25とし、100の母集団からランダム
に抽出した。強伸度測定糸はDe測定糸と同じものであ
る。)第1,2表から明らかなように、非融着化剤を使
用した方が強度のバラツキが少ない。また、実験NO.
3−3とNO.l2のフィラメントヤーンに20回/1
0CW1の撚をかけて強度を測定し、その強度保持率を
計算するとそれぞれR=92%,85%であり、融着の
ないNO.3−3の方がすぐれていることがわかる。
(The number of measurement samples was 25, which was randomly selected from a population of 100. The yarn for measuring strong elongation was the same as the yarn for measuring De.) As is clear from Tables 1 and 2, the non-fusing agent There is less variation in strength when using . Also, experiment no.
3-3 and NO. 20 times/1 for l2 filament yarn
When the strength was measured by twisting 0CW1 and the strength retention rate was calculated, R = 92% and 85%, respectively. It can be seen that 3-3 is better.

実施例2 実施例1と同様にして110℃の乾燥工程まで経た17
500c1e/500fi′の芳香族コポリアミド繊維
に1%の塩化ナトリウム水溶液をシャワーで付与し、続
いて上側ローラーが240℃の表面温度を有しかつ上側
ローラーの周速が下側ローラの周速の1.部倍であるク
ロームメッキをした一対のローラーに糸を10ターン巻
回したのち、ついで直径1.5α、曲率30cmの酸化
チタン製の棒の長手方向に直角に接触角を100程度に
して糸を接触させた。
Example 2 17 which underwent the drying process at 110°C in the same manner as in Example 1
500c1e/500fi' aromatic copolyamide fibers were showered with a 1% aqueous sodium chloride solution, and then the upper roller had a surface temperature of 240°C and the circumferential speed of the upper roller was equal to the circumferential speed of the lower roller. 1. After winding the thread 10 turns around a pair of chrome-plated rollers, the thread was then wound at right angles to the longitudinal direction of a titanium oxide rod with a diameter of 1.5α and a curvature of 30 cm at a contact angle of about 100. brought into contact.

Claims (1)

【特許請求の範囲】 1 下記構成単位置(A)(B)及び(C)▲数式、化
学式、表等があります▼(A)▲数式、化学式、表等が
あります▼(B)▲数式、化学式、表等があります▼(
¥C¥)から構成され、かつ構成単位(C)の共重割合
が全構成単位の15〜40モル%の範囲であつて、かつ
(A)と(C)の合計モル数と(B)のモル数とが実質
的に等しい芳香族コポリアミドからなる繊維を熱延伸又
は熱処理するに際し、該熱延伸又は熱処理の前に該繊維
に対し、下記(a)〜(d)のうちより選ばれた少くと
も1種の非融着化剤を付着せしめることを特徴とする解
繊性の良好な繊維の製造方法。 (a)塩化ナトリウム又は塩化カルシウムの水溶液(b
)硝酸ナトリウム、硝酸鉄、硫酸ナトリウム、硫酸マグ
ネシウム、硫酸銅又は硫酸鉄の水溶液、(c)オルトリ
ン酸又はオルトリン酸ナトリウム塩の水溶液、(d)ポ
リエチレン又はエポキシポリブタジエンの水性エマルジ
ョン。
[Scope of Claims] 1 The following constituent single positions (A), (B) and (C) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (A) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (B) ▲ Numerical formulas, There are chemical formulas, tables, etc.▼(
¥C¥), and the copolymerization ratio of the structural unit (C) is in the range of 15 to 40 mol% of the total structural units, and the total number of moles of (A) and (C) and (B) When hot-stretching or heat-treating a fiber made of an aromatic copolyamide in which the number of moles of A method for producing fibers with good defibration properties, which comprises adhering at least one type of anti-fusing agent. (a) Aqueous solution of sodium chloride or calcium chloride (b)
) aqueous solutions of sodium nitrate, iron nitrate, sodium sulfate, magnesium sulfate, copper sulfate or iron sulfate; (c) aqueous solutions of orthophosphoric acid or orthophosphate sodium salt; (d) aqueous emulsions of polyethylene or epoxy polybutadiene.
JP6273077A 1977-05-31 1977-05-31 Method for producing fibers with good defibration properties Expired JPS6047932B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6273077A JPS6047932B2 (en) 1977-05-31 1977-05-31 Method for producing fibers with good defibration properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6273077A JPS6047932B2 (en) 1977-05-31 1977-05-31 Method for producing fibers with good defibration properties

Publications (2)

Publication Number Publication Date
JPS53147811A JPS53147811A (en) 1978-12-22
JPS6047932B2 true JPS6047932B2 (en) 1985-10-24

Family

ID=13208767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6273077A Expired JPS6047932B2 (en) 1977-05-31 1977-05-31 Method for producing fibers with good defibration properties

Country Status (1)

Country Link
JP (1) JPS6047932B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854021A (en) * 1981-09-28 1983-03-30 Teijin Ltd Surface modifying method of fiber
EP0098882B1 (en) * 1982-01-19 1987-01-14 E.I. Du Pont De Nemours And Company Acceleration of yarn heat-strengthening process
JPS6052623A (en) * 1983-08-26 1985-03-25 Teijin Ltd Surface treatment of heat-meltable yarn
JPS6017112A (en) * 1983-07-07 1985-01-29 Teijin Ltd Preparation of aromatic polyamide yarn
JPS59163425A (en) * 1983-03-07 1984-09-14 Teijin Ltd Surface modification of synthetic fiber
DE3465353D1 (en) * 1983-07-04 1987-09-17 Akzo Nv Aromatic polyamide yarn impregnated with lubricating particles, a process for the manufacture of such a yarn, and packing material or rope containing this yarn
JPH0814043B2 (en) * 1985-08-23 1996-02-14 住友化学工業株式会社 Heat treatment method for aromatic polyester fiber
WO2006025113A1 (en) * 2004-08-31 2006-03-09 Teijin Techno Products Limited Fully aromatic polyamide fiber with excellent processability and adhesiveness

Also Published As

Publication number Publication date
JPS53147811A (en) 1978-12-22

Similar Documents

Publication Publication Date Title
JPS63288237A (en) Cord from poly-p-phenylene-terephthalaminde
JPS59168120A (en) Production of polyimide fiber
JPS6324088B2 (en)
US5023035A (en) Cyclic tensioning of never-dried yarns
JPS6047932B2 (en) Method for producing fibers with good defibration properties
RU2002860C1 (en) Method and device for wet spinning fibre simultaneous heat treatment and drying under extending loading
JP2619356B2 (en) Manufacturing method of high-strength polyester yarn
JPS62149934A (en) Production of thermoplastic synthetic fiber
JPS6249367B2 (en)
JP4451617B2 (en) Fully aromatic polyamide fiber with excellent processability
JPS6353286B2 (en)
JPH064704B2 (en) Polyester fiber for rubber hose reinforcement
JPS5813713A (en) Preparation of fiber from liquid crystal of cellulosic derivative
JPH02147328A (en) Cord for reinforcing resin hose
JPS63165515A (en) Aromatic polyamide copolymer fiber
JP2638672B2 (en) High fatigue resistance and high strength polyhexamethylene adipamide fiber
JPS6189317A (en) Production of aromatic polyamide fiber
JPS6052623A (en) Surface treatment of heat-meltable yarn
JPH03185111A (en) Polyester monofilament for use on radial tire carcass
JPS6328133B2 (en)
JPS6071709A (en) Novel fiber
JPS623273B2 (en)
JPS5891809A (en) Polyparaphenylene terephtalamide filament having high durability and its preparation
JPS5837419B2 (en) Rubber product reinforcement material
JPS63165548A (en) Rubber reinforcing dip cord and its production