JPH0478744B2 - - Google Patents
Info
- Publication number
- JPH0478744B2 JPH0478744B2 JP58135758A JP13575883A JPH0478744B2 JP H0478744 B2 JPH0478744 B2 JP H0478744B2 JP 58135758 A JP58135758 A JP 58135758A JP 13575883 A JP13575883 A JP 13575883A JP H0478744 B2 JPH0478744 B2 JP H0478744B2
- Authority
- JP
- Japan
- Prior art keywords
- filament
- lead
- contact plate
- opening
- component ratio
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 30
- 229920000728 polyester Polymers 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical compound [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 description 8
- -1 copper-lead metals Chemical class 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Description
＜技術分野＞
本発明はポリエステル系連続フイラメントの開
繊方法に関するものであり、より詳しくは溶融紡
糸した多数のポリエステル系連続フイラメントを
空気流によつて牽引した後、単糸開繊性がよく、
目付の均一なウエブを安定して得ることのできる
開繊方法に関する。
＜先行技術＞
多数本の合成繊維フイラメントを押し出し、こ
れを高速気流によつて牽引し、引続いてウエブ形
成を連続して行なう不織布製造法、いわゆるスパ
ンボンド法においてはフイラメントを斑なく均一
に開繊させることが均一な目付の不織布を得るた
めに極めて重要である。均一なウエブを得る方法
として従来から種々の方法が提案されており、そ
の一方法としてフイラメントを帯電させてフイラ
メント間の電気的反発力を利用して開繊性を向上
させる方法が提案されている。そしてフイラメン
トを帯電させる方法としてはイオン化された空気
中を通過させて帯電させる方法、あるいは通常非
導電性である合成繊維に導電処理を行ない、直接
高電圧を印加して帯電させる方法等がある。しか
しフイラメントを高速気流を利用して、極めて高
速度で牽引するスパンボンド法においてはこれら
の方法はフイラメントに充分な電荷を付与するこ
とが困難である。さらにこれらの方法は設備的に
も大掛りとなり、又高電圧を必要とするための危
険性等に問題がある。
一方本出願と同一の出願人によつて提案された
特許出願「フイラメントの送り出し装置」におい
ては、目付の均一なウエブの形成を行うためにフ
イラメントを帯電系列の異なる他の物質と衝突さ
せ、すなわち接触させることにより極めて効率よ
く、均一かつ高い電荷量をフイラメントに付与さ
せることのできる装置が開示されている。（特開
昭52−118068号公報および特開昭52−118069号公
報参照）
又特開昭57−89635号公報に、フイラメントを
衝突させて均一に開繊させるための衝突板に鉛を
主体とする金属を用いる方法が有効である旨開示
されている。しかし前記公報に開示されているよ
うに、鉛を主体とした、すなわち鉛を重量％で60
％以上含有した衝突板を用いてポリエステル系フ
イラメントを開繊する方法はフイラメントに発生
する帯電量が高く、その結果単糸への開繊性の優
れたウエブが得られる反面、衝突板の摩耗が激し
いという欠点を有する。すなわちこの衝突板は硬
度の低い鉛を主体としているために、フイラメン
トの衝突力を強くして高い電荷を付与させようと
すると、衝突板の表面が短時間に摩耗してフイラ
メントの引掛りが生じるようになる。このフイラ
メントの引掛りは安定した連続生産を行う上で大
きな問題となる。そこで鉛を主体とした衝突板の
表面の摩耗防止のためにフイラメントが衝突板に
衝突する角度を小さくして衝突力を弱める方法が
考えられる。しかし衝突力を弱めると表面摩耗は
改善されるが、反面フイラメントの帯電量が低下
し、その結果充分な開繊を示さず目付の均一なウ
エブが得られない。
本出願の発明者らは従来公知の開繊方法の有す
る欠点が除去された、ポリエステル系フイラメン
トに高電荷を与えて均一分散が可能であり且つ実
用性に優れた衝突板、すなわちフイラメントの接
触板の材質について鋭意検討した結果本発明に到
達した。
＜発明の目的＞
本発明はポリエステル系連続フイラメントを高
速気流で牽引し、接触摩擦により帯電させて開繊
させるに際して、フイラメントに高い電荷量を与
えて目付の均一化を図るとともに工程の安定化が
同時に可能であるポリエズテル系連続フイラメン
トの開繊方法を提供することを目的とする。
＜発明の構成＞
本発明の目的はポリエステル系連続フイラメン
トを走行させ、該走行中のポリエステル系連続フ
イラメントを接触板に衝突させて接触摩擦帯電を
発生させることにより連続フイラメントを開繊す
る方法において、前記接触板に銅−鉛の２成分か
らなる金属であつて、同金属中の鉛の成分比率が
重量％で20％以上60％以下の範囲である金属を用
い、且つ前記接触板の表面区域の鉛成分比率のバ
ラツキが、前記鉛成分比率を１mm×１mmの面積で
厚さ0.1mmの単位部分の30試料について測定した
場合に、鉛成分比率の平均値に対して±10％以内
であることを特徴とするポリエステル系連続フイ
ラメントの開繊方法によつて達成される。
接触板に用いられる金属を前述のように構成す
ることにより、均一な開繊ひいては均一な目付の
ウエブを得ると共に接触板の摩耗を最小限に押え
ることができて工程の安定化を同時に達成するこ
とができる。
＜実施例＞
添附図面を参照して本発明を詳述する。
第１図は本発明に用いられる連続フイラメント
の送り出し装置の部分側面図であり、前述の特開
昭52−118069号公報に開示された装置と同種の装
置である。第１図において、１はフイラメント通
路を形成するための導糸溝壁、２は溝壁１に対し
て傾斜角θをなし、長さｌと幅ｄを有する接触板
である。高速度で牽引されて走行中のフイラメン
ト３が接触板２に衝突するとフイラメントが摩擦
帯電されて開繊されることになる。
前記接触板２を銅−鉛２成分からなる金属であ
つて、鉛成分が重量％で20％以上60％以下、すな
わち銅成分が重量％で40％以上80％以下の金属に
よつて形成する。後述の具体的実施例によつて詳
述されているように、銅成分が80％以上すなわち
鉛成分が20％以下であると接触板２の表面の摩耗
が少なくなるが充分な関繊性すなわち目付の均一
化が図れない。一方銅成分が40％以下、すなわち
鉛成分が60％以上になると開繊性は良好になる
が、硬度の低い鉛成分の増加により短時間で表面
が磨耗し、これが原因となつてフイラメントの引
掛りが多発するようになり、安定してウエブが得
られなくなるという状態になる。
前記接触板における銅−鉛の成分比率は接触板
全体として前記所定比率であるだけでは必ずしも
充分ではない。これは前記連続フイラメントを構
成する単糸フイラメントが非常に細いものであ
り、その細い単糸フイラメントの太さに対応する
程度に前記所定比率が維持されていることが必要
である。特に、後述のように、銅−鉛系の金属は
相溶性が悪く均一相を形成するのが困難である。
そこで本出願の出願人は前記接触板の表面区域の
鉛成分比率のバラツキを、１mm×１mmの面積で厚
さ0.1mmの単位部分の30試料について測定し、そ
の平均値との偏差値によつて規定することにし、
それによつて複数の細い単糸フイラメントが接触
板に衝突する際の開繊程度のバラツキおよび耐摩
耗性のバラツキを少くするようにした。その結果
後述の具体的実施例によつて詳述されているよう
に、前記単位部分の値が鉛成分比率の全体の値す
なわち平均値に対して±10％以内に収まる場合、
望ましくは±５％以内に収まる場合に目付の均一
化が得られることが判明した。すなわちこのバラ
ツキが±10％を越えると開繊性が低下したり、あ
るいは表面の耐摩耗性が低下したりする結果とな
り好ましくない。全体としての鉛成分比率が低下
するに従い、一般的にフイラメント帯電圧が下が
り開繊性も低下する傾向にあるが、銅−鉛成分比
率が各場所でバラツキを示すこと、すなわち鉛成
分比率が全体の平均比率に比べて極端に少ない部
分が存在すると一層フイラメント帯電圧が下がる
傾向を示す。一方反対に部分的に平均比率をかな
り上回る部分も存在するようになり、この場所に
おいてはフイラメントの衝突あるいは摩擦によ
り、硬度の低い鉛の多い場所が集中的に短時間で
摩耗し、フイラメントの引掛りが多発し安定した
ウエブ形成が困難になるからである。
次に所定内のバラツキに収められた銅−鉛成分
比率を有する接触板の製造方法について説明す
る。
一般に銅−鉛系の金属はハンダ（錫−鉛系）の
ような金属と異り、相溶性が悪く均一相を形成す
るのが困難である。そこで銅−鉛系の金属を分布
斑なく均一に混合するために噴霧法
（atomizing）と呼ばれる方法を用いる。すなわ
ち銅と鉛を溶融した溶湯流を圧縮ガスの噴射エネ
ルギによつて吹き飛ばして粉化し、それを冷却し
て銅と鉛の混合した粉末を得る。この粉末を用い
て板状の部材を得るには溶射法、焼結圧延法、爆
発圧着法を用いればよい。
前記噴霧法により銅−鉛系成分を有する粉末を
作る時に噴霧法の作業条件、すなわちガス圧、ガ
スの流量、溶湯の流量、温度を変えることによつ
て銅−鉛成分のバラツキを種々変更することがで
きる。
なお本発明における開繊の方法を実施するため
の補助手段として従来から知られているイオン化
された空気中で帯電させる方法他との併用を行な
うことは何らさしさわりがないことは勿論、必要
に応じて衝突板すなわち接触板を２段以上設ける
ことも可能である。
また本発明にあるポリエステル系フイラメント
とはポリエチレンテレフタレート、ポリエチレン
イソフタレート、ポリブチレンテレフタレート等
のポリエステル及びこれらの共重合体から成るフ
イラメント等を含むものである。
以下に本発明の具体的実施例を含む接触板を用
いたポリエステル系連続フイラメントの開繊方法
の各種実施例を示す。
実施例 １〜８
400個の紡糸孔を有する矩型紡出口により吐出
量400ｇ／min.で紡糸したポリエチレンテレフタ
レートフイラメントを高速気流にて5000ｍ／
min.の糸速で牽引した後、第１図に示した傾斜
角θ＝45°、長さｌ＝30mm、幅300mm、厚さｄ＝10
mmの接触板に衝突させ、その装置の下方に配置し
た移動コンベア上で捕集して50ｇ／m2のウエブを
製造した。この場合フイラメントは接触板の幅
300mmのほゞ全域にわたつて、長さｌの方向で約
２mmの帯状域で接触板に衝突して開繊する。そこ
で銅−鉛成分からなる接触板の鉛成分の平均比率
を10％から80％まで10％毎に変化させて実施例１
〜８とし、それぞれの接触板について表面にフイ
ラメントが衝突する場所の端から端まで（300mm
の幅）で等間隔に30ケ所の部分の鉛成分比率の測
定を行ない、いずれの接触板においても鉛成分の
バラツキが全体の平均比率±５％以下になるよう
に調整した。この際それぞれの接触板における鉛
の最大及び最小成分比率とフイラメント帯電圧並
びに目付変動率、さらに衝突板への単糸引掛り頻
度の測定結果を第１表に示す。
ここで鉛成分比率の測定はその表面１mm×１mm
厚さ方向、0.1mmの体積中の成分を測定したもの
である。またフイラメントの帯電圧は春日電機製
集電式電位測定器KS−325型によつて同様に幅方
向10ケ所測定した平均値である。又目付変動率は
ウエブの均一性評価の尺度として用いたものであ
り、幅25mm、長さ100mmの大きさにウエブの30ケ
所からサンプリングして各サンプルの重量を測定
し、次式により求めた。
目付変動率（％）＝最大重量−最小重量／平均重量×10
0
なおこの値が５％より小さければフイラメント
の分布の均一性は良好であり（表中○で示す）、
４％より小さいと特に優れている（表中◎で示
す）ことが判明している。
<Technical Field> The present invention relates to a method for opening polyester continuous filaments, and more specifically, after pulling a large number of melt-spun polyester continuous filaments with an air flow, single filaments with good opening properties and
This invention relates to a fiber opening method that can stably obtain a web with a uniform basis weight. <Prior art> In the so-called spunbond method, which is a nonwoven fabric manufacturing method in which a large number of synthetic fiber filaments are extruded, pulled by high-speed airflow, and then continuously formed into a web, the filaments are opened uniformly and without unevenness. Fibrillation is extremely important in order to obtain a nonwoven fabric with a uniform basis weight. Various methods have been proposed to obtain a uniform web, one of which is to charge the filaments and use the electrical repulsion between the filaments to improve spreadability. . Methods for charging the filament include charging it by passing it through ionized air, or applying a conductive treatment to synthetic fibers, which are normally non-conductive, and directly applying a high voltage to charge them. However, in the spunbonding method in which the filament is pulled at an extremely high speed using high-speed airflow, it is difficult to apply a sufficient charge to the filament using these methods. Furthermore, these methods require large-scale equipment and require high voltage, which poses problems such as danger. On the other hand, in the patent application ``Filament feeding device'' proposed by the same applicant as the present application, in order to form a web with a uniform basis weight, the filament is collided with another substance with a different charging series, i.e. A device is disclosed that can extremely efficiently apply a uniform and high amount of charge to a filament by contacting the filament. (Refer to JP-A-52-118068 and JP-A-52-118069.) Also, in JP-A-57-89635, a collision plate for colliding filaments and uniformly opening the filaments is mainly made of lead. It is disclosed that a method using a metal that is effective is effective. However, as disclosed in the above publication, it is mainly composed of lead, that is, 60% by weight of lead.
In the method of opening polyester filaments using a collision plate containing more than It has the disadvantage of being harsh. In other words, this collision plate is mainly made of lead, which has low hardness, so if you try to increase the collision force of the filament and apply a high charge, the surface of the collision plate will wear out in a short time, causing the filament to get caught. It becomes like this. This catching of the filament poses a major problem for stable continuous production. Therefore, in order to prevent wear on the surface of the lead-based collision plate, a method has been considered in which the angle at which the filament collides with the collision plate is reduced to weaken the collision force. However, if the collision force is weakened, surface abrasion is improved, but on the other hand, the amount of charge on the filament is reduced, and as a result, sufficient opening is not achieved and a web with a uniform basis weight cannot be obtained. The inventors of the present application have developed an impingement plate, that is, a filament contact plate, which eliminates the drawbacks of conventionally known fiber opening methods, which enables uniform dispersion by imparting a high charge to polyester filaments, and which is highly practical. As a result of intensive study on the material of <Purpose of the Invention> The present invention provides a method for pulling a continuous polyester filament with a high-speed air current, charging it by contact friction, and opening the filament. It is an object of the present invention to provide a method for opening polyester continuous filaments that can be performed at the same time. <Structure of the Invention> The object of the present invention is to provide a method for opening a continuous filament by running a polyester continuous filament and colliding the running polyester continuous filament with a contact plate to generate contact frictional charging. The contact plate is made of a metal consisting of two components of copper and lead, in which the component ratio of lead in the metal is in the range of 20% to 60% by weight, and the surface area of the contact plate is The variation in the lead component ratio is within ±10% of the average value of the lead component ratio when the lead component ratio is measured for 30 samples of unit parts with an area of 1 mm x 1 mm and a thickness of 0.1 mm. This is achieved by a polyester continuous filament opening method characterized by the following. By configuring the metal used for the contact plate as described above, it is possible to obtain a web with uniform fiber opening and therefore a uniform basis weight, and to minimize the wear of the contact plate, thereby achieving process stabilization at the same time. be able to. <Example> The present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partial side view of a continuous filament delivery device used in the present invention, which is the same type of device as disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 118069/1983. In FIG. 1, reference numeral 1 indicates a thread guide groove wall for forming a filament passage, and reference numeral 2 indicates a contact plate that forms an inclination angle θ to the groove wall 1 and has a length l and a width d. When the filament 3 running while being towed at high speed collides with the contact plate 2, the filament is frictionally charged and opened. The contact plate 2 is formed of a metal consisting of two components of copper and lead, in which the lead component is 20% or more and 60% or less by weight, that is, the copper component is 40% or more and 80% or less by weight. . As detailed in the specific examples below, when the copper content is 80% or more, that is, the lead content is 20% or less, the wear on the surface of the contact plate 2 is reduced, but sufficient anti-corrosion properties, i.e. Uniform basis weight cannot be achieved. On the other hand, when the copper content is 40% or less, that is, the lead content is 60% or more, the opening property becomes good, but the increase in the lead content with low hardness causes the surface to wear out in a short time, which causes the filament to get caught. As a result, a stable web cannot be obtained. It is not necessarily sufficient for the copper-lead component ratio in the contact plate to be the predetermined ratio for the entire contact plate. This is because the single filament constituting the continuous filament is very thin, and it is necessary that the predetermined ratio be maintained to an extent corresponding to the thickness of the thin single filament. In particular, as described below, copper-lead metals have poor compatibility and are difficult to form a uniform phase.
Therefore, the applicant of the present application measured the variation in the lead component ratio in the surface area of the contact plate for 30 samples of unit parts with an area of 1 mm x 1 mm and a thickness of 0.1 mm, and calculated the deviation from the average value. We decided to stipulate that
Thereby, variations in the degree of fiber opening and variations in abrasion resistance when a plurality of thin single filaments collide with the contact plate are reduced. As a result, as detailed in the specific examples below, if the value of the unit portion falls within ±10% of the overall value of the lead component ratio, that is, the average value,
It has been found that uniformity of the basis weight can be achieved desirably within ±5%. That is, if this variation exceeds ±10%, it is not preferable because it results in a decrease in opening properties or a decrease in surface abrasion resistance. As the overall lead component ratio decreases, the filament's charged voltage generally decreases and the spreadability tends to decrease, but the copper-lead component ratio varies from place to place. If there is a portion that is extremely small compared to the average ratio, the filament charging voltage tends to decrease further. On the other hand, there are some areas where the average ratio is considerably higher than the average ratio, and in these areas, due to collision or friction of the filament, areas with low hardness and high lead content are intensively worn in a short period of time, causing the filament to become caught. This is because the formation of a stable web becomes difficult due to frequent occurrence of rips. Next, a method for manufacturing a contact plate having a copper-lead component ratio within a predetermined variation will be described. Generally, unlike metals such as solder (tin-lead), copper-lead metals have poor compatibility and are difficult to form a uniform phase. Therefore, a method called atomizing is used to uniformly mix copper-lead metals without uneven distribution. That is, a molten metal stream containing molten copper and lead is blown away and powdered by the jet energy of compressed gas, and then cooled to obtain a mixed powder of copper and lead. To obtain a plate-shaped member using this powder, a thermal spraying method, a sinter rolling method, or an explosive compression bonding method may be used. When producing powder having copper-lead components by the above-mentioned spraying method, the dispersion of the copper-lead component is varied by changing the working conditions of the spraying method, that is, gas pressure, gas flow rate, molten metal flow rate, and temperature. be able to. It should be noted that it is of course possible to use the conventionally known method of charging in ionized air as an auxiliary means for carrying out the fiber opening method of the present invention, as well as other methods as necessary. It is also possible to provide two or more stages of collision plates or contact plates. The polyester filament according to the present invention includes filaments made of polyesters such as polyethylene terephthalate, polyethylene isophthalate, polybutylene terephthalate, and copolymers thereof. Below, various examples of a method for opening polyester continuous filaments using a contact plate including specific examples of the present invention will be shown. Examples 1 to 8 A polyethylene terephthalate filament spun at a discharge rate of 400 g/min. using a rectangular spinning spout having 400 spinning holes was spun at a speed of 5000 m/min using a high-speed air flow.
After pulling at a yarn speed of min., the inclination angle θ = 45°, the length l = 30 mm, the width 300 mm, and the thickness d = 10 as shown in Figure 1.
A web of 50 g/m 2 was produced by colliding with a contact plate of 50 g/m 2 and collecting it on a moving conveyor placed below the device. In this case the filament is the width of the contact plate
The fibers collide with the contact plate and open in a band-like area of about 2 mm in the direction of length l over almost the entire 300 mm area. Therefore, the average ratio of the lead component of the contact plate made of copper-lead components was changed from 10% to 80% in 10% increments.
~8, and for each contact plate, from the end of the place where the filament collides with the surface (300 mm
The lead component ratio was measured at 30 equally spaced parts (width of 100 mm), and adjustments were made so that the variation in the lead component on all contact plates was within ±5% of the overall average ratio. At this time, Table 1 shows the measurement results of the maximum and minimum component ratios of lead, filament charging voltage, and basis weight variation rate in each contact plate, as well as the frequency of single thread catching on the collision plate. Here, the lead component ratio is measured at 1 mm x 1 mm on the surface.
The components in a volume of 0.1 mm in the thickness direction were measured. The charged voltage of the filament is the average value of measurements taken at 10 points in the width direction using a current collecting potential measuring device KS-325 manufactured by Kasuga Denki. In addition, the basis weight variation rate was used as a measure for evaluating the uniformity of the web, and was obtained by sampling from 30 locations on the web with a width of 25 mm and a length of 100 mm, measuring the weight of each sample, and calculating it using the following formula. . Weight variation rate (%) = maximum weight - minimum weight / average weight x 10
0 If this value is smaller than 5%, the uniformity of the filament distribution is good (indicated by ○ in the table).
It has been found that a ratio of less than 4% is particularly excellent (indicated by ◎ in the table).
【表】
実施例 ９〜16
実施例１〜８と同一の条件及び装置にて同じく
50ｇ／m2のウエブを製造した。このとき銅−鉛成
分からなる接触板の鉛成分の平均比率を同様に10
％から80％まで10％毎に変化させたとき、それぞ
れの接触板について、表面にフイラメントが衝突
する場所の端から端まで等間隔に30ケ所の部分の
鉛成分比率を測定し、接触板のいづれの部分にお
いても鉛成分のバラツキが全体の平均比率±５％
以上10％以下になるように調整した。このときそ
れぞれの接触板における鉛の最大及び最小成分比
率とフイラメント帯電圧並びに目付変動率、さら
に接触板への単糸引掛り頻度の測定結果を第２表
に示す。[Table] Examples 9 to 16 Same conditions and equipment as Examples 1 to 8.
A web of 50 g/m 2 was produced. At this time, the average ratio of the lead component of the contact plate consisting of copper-lead components is set to 10
% to 80% in 10% increments, the lead component ratio was measured at 30 equally spaced points from end to end where the filament collides with the surface of each contact plate, and The variation in lead content in all parts is ±5% of the overall average ratio.
Adjustments were made to keep it below 10%. At this time, Table 2 shows the measurement results of the maximum and minimum component ratios of lead, filament charging voltage, and basis weight variation rate in each contact plate, and the frequency of single thread catching on the contact plate.
【表】
比較例 １〜８
実施例１〜16と同一の条件及び装置にて同じく
50ｇ／m2のウエブを製造した。このとき銅−鉛成
分からなる接触板の鉛成分の平均比率を同様に10
％から80％まで10％毎に変化させたとき、それぞ
れの接触板について、表面にフイラメントが衝突
する場所の端から端まで等間隔に30ケ所の部分の
鉛成分比率を測定し、いずれの接触板においても
鉛成分のバラツキが全体の平均比率±10％以上に
なるように調整した。このときそれぞれの接触板
における鉛の最大及び最小成分比率とフイラメン
ト帯電圧並びに目付変動率、さらに接触板への単
糸引掛り頻度の測定結果を第３表に示す。[Table] Comparative Examples 1 to 8 Same conditions and equipment as Examples 1 to 16.
A web of 50 g/m 2 was produced. At this time, the average ratio of the lead component of the contact plate consisting of copper-lead components is set to 10
% to 80% in 10% increments, the lead component ratio was measured at 30 equally spaced points from end to end of the area where the filament collides with the surface of each contact plate. Adjustments were made so that the variation in lead content in the plates was at least ±10% of the overall average ratio. At this time, Table 3 shows the measurement results of the maximum and minimum component ratios of lead, filament charging voltage, and basis weight variation rate in each contact plate, and the frequency of single thread catching on the contact plate.
【表】
＜発明の効果＞
本発明によるポリエステル系連続フイラメント
の開繊方法は前述のように構成されているので、
ポリエステル系連続フイラメントの開繊性が著し
く向上されると共に安定した連続生産を行うこと
が可能である。[Table] <Effects of the Invention> Since the method for opening polyester continuous filaments according to the present invention is configured as described above,
The opening properties of polyester continuous filaments are significantly improved, and stable continuous production is possible.
第１図は本発明によるポリエステル系連続フイ
ラメントの開繊方法に用いられるフイラメント送
り出し装置の部分側断面図である。
１……フイラメント通路用導糸溝壁、２……傾
斜板、３……フイラメント群。
FIG. 1 is a partial side sectional view of a filament feeding device used in the method for opening polyester continuous filaments according to the present invention. 1... Filament guide groove wall for filament passage, 2... Inclined plate, 3... Filament group.
Claims (1)
せ、該走行中のポリエステル系連続フイラメント
を接触板に衝突させて接触摩擦帯電を発生させる
ことにより連続フイラメントを開繊する方法にお
いて、前記接触板に銅−鉛の２成分からなる金属
であつて、同金属中の鉛の成分比率が重量％で20
％以上60％以下の範囲である金属を用い、且つ前
記接触板の表面区域の鉛成分比率のバラツキが、
前記鉛成分比率を１mm×１mmの面積で厚さ0.1mm
の単位部分の30試料について測定した場合に、鉛
成分比率の平均値に対して±10％以内であること
を特徴とするポリエステル系連続フイラメントの
開繊方法。1. A method of opening a continuous filament by running a polyester continuous filament and colliding the running polyester continuous filament with a contact plate to generate contact frictional electrification. A metal consisting of a component in which the component ratio of lead in the metal is 20% by weight.
% or more and 60% or less, and the variation in the lead component ratio in the surface area of the contact plate is
The above lead component ratio is 0.1mm thick in an area of 1mm x 1mm.
A method for opening polyester continuous filament, characterized in that the lead component ratio is within ±10% of the average value when measured on 30 samples of unit parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135758A JPS6028566A (en) | 1983-07-27 | 1983-07-27 | Opening of continuous filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135758A JPS6028566A (en) | 1983-07-27 | 1983-07-27 | Opening of continuous filament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6028566A JPS6028566A (en) | 1985-02-13 |
| JPH0478744B2 true JPH0478744B2 (en) | 1992-12-14 |
Family
ID=15159168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58135758A Granted JPS6028566A (en) | 1983-07-27 | 1983-07-27 | Opening of continuous filament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028566A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714526B2 (en) * | 1986-04-16 | 1995-02-22 | 新日本製鐵株式会社 | Setup method for edge drop control of strip rolling |
| JP2653825B2 (en) * | 1988-04-22 | 1997-09-17 | 旭化成工業株式会社 | Manufacturing method of filament non-woven fabric |
-
1983
- 1983-07-27 JP JP58135758A patent/JPS6028566A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6028566A (en) | 1985-02-13 |
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