JP2954782B2 - Splittable conjugate fiber - Google Patents
Splittable conjugate fiberInfo
- Publication number
- JP2954782B2 JP2954782B2 JP4133506A JP13350692A JP2954782B2 JP 2954782 B2 JP2954782 B2 JP 2954782B2 JP 4133506 A JP4133506 A JP 4133506A JP 13350692 A JP13350692 A JP 13350692A JP 2954782 B2 JP2954782 B2 JP 2954782B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- conjugate fiber
- fibers
- splittable conjugate
- division
- 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 - Fee Related
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Multicomponent Fibers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、分割処理することによ
って単繊維繊度が０．８デニール以下の極細繊維を発現
し得る分割型複合繊維に関する。さらに詳しくは、捲縮
を付与する際の押込捲縮機通過性あるいはカード工程通
過性等に優れた工程安定性の良好な分割型複合繊維に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a splittable conjugate fiber which can produce ultrafine fibers having a single fiber fineness of 0.8 denier or less by splitting. More specifically, the present invention relates to a splittable conjugate fiber having excellent process stability, which is excellent in passability through an indentation crimping machine or card process when crimping is applied.
【０００２】[0002]
【従来の技術】不織布用としては、単糸繊度が１．５デ
ニール以上の短繊維が一般的であるが、単糸繊度は小さ
いほど柔軟性は向上し表面感触も良好となることから、
１．０デニール以下の極細短繊維を用いる試みがなされ
ている。しかし、極細短繊維はカード工程通過性に劣
り、生産性が低下してコストも上昇をまねくといった問
題がある。2. Description of the Related Art For non-woven fabrics, short fibers having a single-fiber fineness of 1.5 denier or more are generally used. However, the smaller the fineness of a single-fiber, the better the flexibility and the better the surface feel.
Attempts have been made to use ultrafine short fibers of 1.0 denier or less. However, ultra-short fibers have a problem in that they are inferior in the carding process passability, reduce productivity and increase costs.
【０００３】かかる問題点を解消するため、従来、互い
に親和性の低い重合体からなる分割型複合繊維を用いて
カーディングし、その後高圧流体流等の機械的衝撃で分
割して極細繊維からなる不織布を製造する方法が提案さ
れている（特開昭６２―１３３１６４号公報等）。In order to solve such a problem, conventionally, carding is performed using a splittable conjugate fiber made of a polymer having a low affinity for each other, and thereafter, it is split by a mechanical impact such as a high-pressure fluid flow to be made of an ultrafine fiber. A method for producing a nonwoven fabric has been proposed (Japanese Patent Application Laid-Open No. 62-133164).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来提
案されている分割型複合繊維は、押込捲縮機等により捲
縮を付与する際あるいはカード工程通過時に分割が進行
して、発現した極細繊維がシリンダーに捲付いたりネッ
プ発生の要因となって、良好なカード性を得ることがで
きない。However, the split-type conjugate fiber proposed in the prior art has a problem that when the crimp is applied by an indentation crimping machine or the like or when the card passes through the carding process, the splitting of the conjugated fiber causes the developed ultra-fine fiber to be developed. Good cardability cannot be obtained due to winding around the cylinder or occurrence of neps.
【０００５】特公平３―１４２６号公報には、捲縮付与
時に分割が進行しても、新たに表出した剥離面に油剤を
付与することにより後工程通過性が改善されることが示
されているものの、極細繊維発現を抑制するものではな
く、且つカード工程での分割進行を抑制するものではな
いので、上記問題の本質的解決策とはなっていない。[0005] Japanese Patent Publication No. 3-1426 discloses that even if the division progresses at the time of crimping, the post-process passability can be improved by applying an oil agent to the newly exposed release surface. However, since it does not suppress the expression of ultrafine fibers and does not suppress the progress of division in the carding process, it is not an essential solution to the above problem.
【０００６】本発明の目的は、上記問題点が解消され、
容易に極細繊維からなる不織布を得ることのできる分割
型複合繊維を提供することにある。An object of the present invention is to solve the above problems,
An object of the present invention is to provide a splittable conjugate fiber from which a nonwoven fabric made of ultrafine fibers can be easily obtained.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、上記目的
を達成するため鋭意検討した結果、シリコン系油剤が特
定量付着した分割型複合繊維は、捲縮工程やカード工程
等の後加工工程での分割進行が著しく抑制され、その結
果良好なカード通過性が達成され、風合の良好な不織布
が安定して得られることを見い出し本発明を完成するに
至った。Means for Solving the Problems The inventors of the present invention have made intensive studies to achieve the above object, and as a result, the splittable conjugate fibers to which a specific amount of the silicone oil has adhered have been subjected to post-processing such as a crimping step and a carding step. It has been found that the progress of division in the process is remarkably suppressed, and as a result, a good card passing property is achieved, and a nonwoven fabric having a good feeling can be stably obtained, thereby completing the present invention.
【０００８】すなわち、本発明によれば、互いに親和性
の低い重合体からなり、単繊維繊度が０．８デニール以
下の極細繊維を発現し得る分割型複合繊維において、該
複合繊維にはシリコン系油剤がシリコン成分として０．
０１〜１．０重量％（繊維重量に対して）付着している
ことを特徴とする分割型複合繊維、が提供される。That is, according to the present invention, in a splittable conjugate fiber which is made of polymers having low affinity to each other and which can express ultrafine fibers having a single fiber fineness of 0.8 denier or less, the conjugate fiber is made of a silicon-based fiber. The oil is used as a silicone component.
The present invention provides a splittable conjugate fiber, wherein the splittable conjugate fiber is attached in an amount of from 0.01 to 1.0% by weight (based on the weight of the fiber).
【０００９】本発明でいう分割型複合繊維は、複数の繊
維に分割し得るものであって、分割された繊維の少なく
とも一部の単繊維繊度が０．８デニール以下であれば特
定に限定する必要はなく、例えば相互に親和性の低い二
種以上の重合体が、図１（ａ）〜（ｆ）に示される如く
配置された断面形状を例示することができる。The splittable conjugate fiber referred to in the present invention can be split into a plurality of fibers, and it is particularly limited as long as at least a part of the split fibers has a single fiber fineness of 0.8 denier or less. It is not necessary, and for example, a cross-sectional shape in which two or more polymers having low mutual affinity are arranged as shown in FIGS. 1A to 1F can be exemplified.
【００１０】また互いに親和性の低い重合体とは、溶融
混合しても実質的に均一に混合されない組み合わせをい
い、なかでもポリエステル類とポリアミド類、ポリエス
テル類とポリオレフィン類、ポリアミド類とポリオレフ
ィン類等、重合体の系が異なる組み合わせが好ましい。[0010] Polymers having low affinity for each other are combinations that are not substantially uniformly mixed even when melt-mixed, and include polyesters and polyamides, polyesters and polyolefins, polyamides and polyolefins, and the like. In addition, a combination having different polymer systems is preferable.
【００１１】なお、ここで用いられる重合体は、分割後
にも充分な機械的特性を有していることが大切で、繊維
形成性を有することが好ましく、例えば、ポリアミド類
としてはポリカプロラクタム（ナイロン６）、ポリヘキ
サメチレンアジポアミド（ナイロン６６）等を、ポリエ
ステル類としてはポリエチレンテレフタレート、ポリブ
チレンテレフタレート等を、ポリオレフィン類としては
ポリエチレン、ポリプロピレン等をあげることができ、
その他ポリウレタン類、（メタ）アクリレート系重合体
等も使用可能である。またこれらの重合体には、染料染
着性、制電性等を改善するために第３成分を共重合また
は混合してもよい。It is important that the polymer used here has sufficient mechanical properties even after division, and it is preferable that the polymer has a fiber-forming property. For example, polyamides such as polycaprolactam (nylon) 6), polyhexamethylene adipamide (nylon 66) and the like; polyesters such as polyethylene terephthalate and polybutylene terephthalate; and polyolefins such as polyethylene and polypropylene.
Other polyurethanes, (meth) acrylate polymers and the like can also be used. In addition, a third component may be copolymerized or mixed with these polymers in order to improve dye dyeing properties, antistatic properties and the like.
【００１２】本発明においては、上記の互いに親和性の
低い重合体からなる分割型複合繊維にシリコン系油剤が
付着していることが大切であり、シリコン成分として
０．０１〜１．０重量％、好ましくは０．０２〜０．８
重量％付着している必要がある。シリコン成分の付着量
が０．０１重量％未満の場合には、繊維・金属間の摩擦
低減効果が不充分となり、押込捲縮を付与する際もしく
はカーディングの際複合繊維に過度の応力が負荷され、
成分間の剥離が進行して極細繊維が生成し、シリンダー
への捲付き及びネップが発生してカード通過性が低下す
るため好ましくない。一方１．０重量％を越える場合に
は、繊維・繊維間の摩擦低下が大きすぎ、ウエブの絡合
性が不足して均一なウエブを得ることが困難になると同
時にカード通過性も低下し、また制電性が低下するため
に多量の制電剤を付与することが必要となってスカム発
生の問題を生じるので好ましくない。In the present invention, it is important that a silicone-based oil agent adheres to the splittable conjugate fiber made of a polymer having a low affinity for each other, and 0.01 to 1.0% by weight as a silicon component. , Preferably 0.02 to 0.8
It must be attached by weight%. When the adhesion amount of the silicon component is less than 0.01% by weight, the effect of reducing the friction between the fiber and the metal becomes insufficient, and excessive stress is applied to the conjugate fiber when applying indentation crimping or carding. And
It is not preferable because the exfoliation between the components progresses to produce ultrafine fibers, which causes winding around the cylinder and nep to occur, thereby lowering the card passing property. On the other hand, if it exceeds 1.0% by weight, the frictional reduction between the fibers is too large, and the entanglement of the web is insufficient, so that it is difficult to obtain a uniform web, and at the same time, the card passing property is reduced. Further, since the antistatic property is lowered, it is necessary to apply a large amount of the antistatic agent, which causes a problem of scum generation, which is not preferable.
【００１３】好ましく用いられるシリコン成分として
は、ジメチルポリシロキサン、アミノ変性ポリシロキサ
ン、メチルハイドロジエンポリシロキサン、ポリエチレ
ングリコール変性ポリシロキサン、ポリプロピレングリ
コール変性ポリシロキサン等が例示される。Examples of preferably used silicon components include dimethylpolysiloxane, amino-modified polysiloxane, methylhydrogenpolysiloxane, polyethylene glycol-modified polysiloxane, and polypropylene glycol-modified polysiloxane.
【００１４】かかるシリコン成分を複合繊維に付与する
には、繊維用油剤として常用されている平滑剤、乳化
剤、制電剤、その他増白剤、酸化防止剤、紫外線吸収
剤、顔料、染料等を必要に応じて併用したシリコン系油
剤として付与すればよい。この際、平滑剤成分としてワ
ックス又は鉱物油等の耐熱性が不充分なものを用いる場
合にはシリコン成分に対して５〜１００重量％の範囲と
するのが好ましく、フッ素系の平滑剤はコストアップに
なる場合が多いので多量に併用することは好ましくな
い。In order to impart such a silicone component to the conjugate fiber, a smoothing agent, an emulsifier, an antistatic agent, other whitening agents, antioxidants, ultraviolet absorbers, pigments, dyes, etc., which are commonly used as oil agents for fibers, are used. What is necessary is just to give as a silicone oil agent used together as needed. At this time, when a wax or a mineral oil or the like having insufficient heat resistance is used as the smoothing component, the content is preferably in the range of 5 to 100% by weight based on the silicon component. It is not preferable to use a large amount of them together because they often increase.
【００１５】また制電剤としては、アルキルホスフェー
ト塩、アルキルスルホネート塩等のアニオン界面活性
剤、第四級アンモニウム塩、アルキルイミダゾリン塩等
のカチオン界面活性剤、ベタイン型両性界面活性剤等の
いずれをも使用可能であるが、経時的に繊維の内部に浸
透し易いものは好ましくないので、常温で固状のものを
少なくとも一部に用いるのが好ましい。配合量は、ポリ
エステル／ポリアミド、ポリエステル／ポリオレフィン
の複合繊維の場合は、シリコン成分に対して１００〜５
００重量％の範囲内とするのが好ましい。Examples of the antistatic agent include anionic surfactants such as an alkyl phosphate salt and an alkyl sulfonate salt, cationic surfactants such as a quaternary ammonium salt and an alkyl imidazoline salt, and betaine-type amphoteric surfactants. Although it is also possible to use a material that easily permeates the interior of the fiber over time, it is preferable to use at least part of a material that is solid at room temperature. In the case of a composite fiber of polyester / polyamide or polyester / polyolefin, the compounding amount is 100 to 5 with respect to the silicon component.
It is preferably within the range of 00% by weight.
【００１６】さらに、本発明の複合繊維を高圧水流で分
割して極細繊維となす場合には、シリコン系油剤は親水
性に富んでいることが分割効率向上の面で好ましいの
で、シリコン成分としてはアミノ変性ポリシロキサン、
ポリエチレングリコール／ポリプロピレングリコール変
性ポリシロキサン等が特に好ましく、制電剤としては炭
素数８〜１２のアルキルホスフェート金属塩を併用する
こと、あるいはソルビタンの脂肪酸エステル等の親水性
化合物を併用することも好ましい。Further, when the conjugate fiber of the present invention is divided into ultrafine fibers by high-pressure water flow, it is preferable that the silicon-based oil agent is rich in hydrophilicity in terms of improvement of division efficiency, and therefore, the silicon component is Amino-modified polysiloxane,
Polyethylene glycol / polypropylene glycol-modified polysiloxane and the like are particularly preferred. As the antistatic agent, it is also preferred to use a metal salt of an alkyl phosphate having 8 to 12 carbon atoms, or to use a hydrophilic compound such as a fatty acid ester of sorbitan.
【００１７】上述のシリコン系油剤は、複合繊維を製造
する任意の段階で付与すればよいが、通常は延伸後に付
与される。なかでも該複合繊維の延伸後であって捲縮付
与以前の段階で付与する方法は、捲縮を付与する段階で
の分割進行が抑制されるので好ましい。しかしながら、
該複合繊維をカットして短繊維となす直前またはカーデ
ィング工程の直前の段階で付与しても、カード工程での
分割進行を抑制することができ、カード通過性は良好と
なる。The above-mentioned silicone oil may be applied at any stage of producing the conjugate fiber, but is usually applied after drawing. Above all, the method of applying the composite fiber at a stage after the drawing and before the application of the crimp is preferable since the division progress at the stage of applying the crimp is suppressed. However,
Even if the conjugate fiber is applied immediately before being cut into short fibers or immediately before the carding step, the division progress in the card step can be suppressed, and the card passing property is improved.
【００１８】なおシリコン系油剤は常温で液状を呈して
いることが、異種ポリマー間の剥離面に浸透し易くなる
ので、捲縮工程、カード工程等で分割が進行しても、新
たに表出した面にシリコン成分が浸透してカード通過性
の低下を小さくすることができ、特に好ましい。Since the silicone oil is in a liquid state at room temperature, it easily penetrates into the peeled surface between different kinds of polymers. Therefore, even if the division proceeds in the crimping step, the carding step, etc., it is newly expressed. This is particularly preferable because the silicon component can penetrate into the exposed surface to reduce a decrease in card permeability.
【００１９】以上に説明した本発明の分割型複合繊維
は、常法にしたがってカードを通してウエブとなした
後、ニードルパンチや高圧水流等により複合繊維の極細
繊維への分割と繊維間の絡合を同時に行なうことによっ
て、品位の良好な極細繊維からなる不織布を容易に得る
ことができる。The splittable conjugate fiber of the present invention described above is formed into a web through a card according to a conventional method, and then divided into ultrafine fibers and entangled between the fibers by needle punching or high pressure water flow. Simultaneously, it is possible to easily obtain a nonwoven fabric made of fine fibers having good quality.
【００２０】[0020]
【発明の作用・効果】本発明の分割型複合繊維表面には
特定量のシリコン成分が付着しているので、繊維・金属
間の摩擦係数が抑制されて捲縮付与工程あるいはカード
工程で複合繊維に負荷される応力が低減する。その結
果、かかる工程での異種重合体界面の剥離が抑制され、
極細繊維のシリンダーへの捲付き、ネップの発生等が少
なくなる。一方繊維・繊維間の摩擦係数はそれほど低下
しないので、繊維の絡合性は充分で、安定して均質なウ
エブを得ることができる。Since the specific amount of the silicon component adheres to the surface of the splittable conjugate fiber of the present invention, the coefficient of friction between the fiber and the metal is suppressed, and the conjugate fiber is formed in the crimping step or the carding step. The stress applied to the substrate is reduced. As a result, peeling of the heterogeneous polymer interface in such a process is suppressed,
Ultrafine fibers are less wrapped around the cylinder, and the occurrence of neps is reduced. On the other hand, since the friction coefficient between the fibers does not decrease so much, the entanglement of the fibers is sufficient, and a stable and uniform web can be obtained.
【００２１】また得られたウエブは、ニードルパンチ、
高圧水流等により、極めて容易に極細繊維への分割と繊
維間の絡合とを同時に行なうことができるので、柔軟性
及び表面感触の優れた極細繊維不織布が容易に且つ安定
して得ることができる。The obtained web is needle-punched,
Since the division into the ultrafine fibers and the entanglement between the fibers can be performed very easily at the same time by the high-pressure water flow or the like, the ultrafine fiber nonwoven fabric having excellent flexibility and surface feel can be easily and stably obtained. .
【００２２】[0022]
【実施例】以下実施例により本発明を具体的に説明す
る。The present invention will be described in detail with reference to the following examples.
【００２３】[0023]
【実施例１〜４、比較例１〜２】ポリエチレンテレフタ
レートを第１成分、ナイロン６を第２成分とし、重量比
１：１の割合で溶融複合紡糸し、１０００ｍ／分で巻き
取って図１（Ｃ）で表される横断面を有する分割型複合
未延伸糸を得た。この未延伸糸を引き揃えて、８０℃の
温水浴中で３．０倍に延伸した。引続きオイル浴で表１
記載のシリコン系油剤を付与し、次いで押込捲縮機にて
１８山／２５mmの機械捲縮を付与した。その後、１３０
℃にて３０分間弛緩熱処理した後５１mmの長さに切断し
て単繊維繊度２デニールの短繊維を得た。Examples 1-4, Comparative Examples 1-2 Polyethylene terephthalate as the first component and nylon 6 as the second component were melt-spun at a weight ratio of 1: 1 and wound up at 1000 m / min. A split composite undrawn yarn having a cross section represented by (C) was obtained. The undrawn yarns were aligned and drawn 3.0 times in a warm water bath at 80 ° C. Table 1 with oil bath
The silicone oil agent described above was applied, and then a mechanical crimp of 18 ridges / 25 mm was applied by an indentation crimping machine. Then 130
After a relaxation heat treatment at 30 ° C. for 30 minutes, the fiber was cut into a length of 51 mm to obtain a short fiber having a single fiber fineness of 2 denier.
【００２４】得られた短繊維をローラーカードにて速度
６０ｍ／分で目付２０ｇ／ｍ2 のウエブを得た。結果を
表１に示す。なお捲縮を付与した際の繊維分割度及びカ
ード通過後の繊維分割度を下記式より求めた。 繊維分割度（％）＝（分割した繊維本数／全繊維本数）
×１００ また、カード通過性については、ネップ及びシリンダー
捲付きもなく良好な品位のウエブが得られたものを○、
若干ネップあるいはシリンダー捲付き等が発生するがな
んとか紡出可能なものを△、ネップまたはシリンダー捲
付き等が発生して紡出不可のものを×とした。A web having a basis weight of 20 g / m 2 was obtained from the obtained short fibers using a roller card at a speed of 60 m / min. Table 1 shows the results. The degree of fiber division after crimping and the degree of fiber division after passing the card were determined by the following formula. Fiber splitting degree (%) = (number of split fibers / total number of fibers)
× 100 Regarding the card passing property, those in which a web of good quality was obtained without nep and cylinder wrapping were evaluated as ○,
The sample which was able to be spun out with some occurrence of a nep or cylinder winding, etc., was rated as "Poor", and the one which was not able to spin out due to the occurrence of a nep or cylinder winding, etc., was rated "x".
【００２５】得られたウエブを、直径０．１mmの孔が
０．６mmピッチで１列に並んだ噴射ノズルから圧力１２
０kg／cm2 で柱状水流を噴き当てる処理を３回繰り返し
て極細繊維不織布となした。得られた不織布の極細繊維
への分割度（高圧水流分割度）は下式により求めた。 高圧水流分割度（％）＝（分割した繊維本数／全繊維本
数）×１００The obtained web was subjected to a pressure of 12 mm from an injection nozzle in which holes having a diameter of 0.1 mm were arranged in a line at a pitch of 0.6 mm.
The process of spraying a columnar water stream at 0 kg / cm 2 was repeated three times to obtain an ultrafine fiber nonwoven fabric. The degree of division of the obtained nonwoven fabric into ultrafine fibers (high-pressure water flow division degree) was determined by the following equation. High-pressure water flow splitting degree (%) = (number of split fibers / total number of fibers) × 100
【００２６】[0026]
【表１】 [Table 1]
【図１】（ａ）〜（ｆ）は本発明の分割型複合繊維の例
を示す概略横断面である。1 (a) to 1 (f) are schematic cross sections showing examples of a splittable conjugate fiber of the present invention.
【符号の説明】 １ 重合体１ ２ 重合体１とは親和性の低い重合体２ ３ 中空部[Description of Signs] 1 Polymer 1 2 Polymer 2 with low affinity to polymer 1 3 Hollow portion
───────────────────────────────────────────────────── フロントページの続き (72)発明者 池田 雅彦 愛媛県松山市北吉田町77番地 帝人株式 会社 松山事業所内 (56)参考文献 特開 昭63−309673（ＪＰ，Ａ) 特開 平２−41470（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masahiko Ikeda 77, Kitayoshida-cho, Matsuyama-shi, Ehime Teijin Limited Matsuyama Office (56) References JP-A-63-309673 (JP, A) JP-A-2-2 41470 (JP, A)
Claims (1)
繊維繊度が０．８デニール以下の極細繊維を発現し得る
分割型複合繊維において、該複合繊維にはシリコン系油
剤がシリコン成分として０．０１〜１．０重量％（繊維
重量に対して）付着していることを特徴とする分割型複
合繊維。1. A splittable conjugate fiber composed of polymers having low affinity to each other and capable of exhibiting ultrafine fibers having a single fiber fineness of 0.8 denier or less, wherein said conjugate fiber contains a silicone oil agent as a silicon component. 0.1 to 1.0% by weight (based on the fiber weight) of the splittable conjugate fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4133506A JP2954782B2 (en) | 1992-05-26 | 1992-05-26 | Splittable conjugate fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4133506A JP2954782B2 (en) | 1992-05-26 | 1992-05-26 | Splittable conjugate fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05331773A JPH05331773A (en) | 1993-12-14 |
| JP2954782B2 true JP2954782B2 (en) | 1999-09-27 |
Family
ID=15106370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4133506A Expired - Fee Related JP2954782B2 (en) | 1992-05-26 | 1992-05-26 | Splittable conjugate fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2954782B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6506327B2 (en) | 1997-11-05 | 2003-01-14 | Pedex & Co. Gmbh | Process of making monofilaments |
| DE19841974A1 (en) | 1998-09-14 | 2000-03-23 | Braun Gmbh | Synthetic monofilament bristle for toothbrushes has cross-section with different regions separated by zones of weakness to encourage fracture |
| MX2021014866A (en) * | 2020-12-02 | 2022-06-03 | Fiber Innovation Tech Inc | Splittable chargeable fiber, split multicomponent fiber, a split multicomponent fiber with a durable charge, nonwoven fabric, filter, and yarn containing, and manufacturing processes therefor. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309673A (en) * | 1987-06-11 | 1988-12-16 | 東レ株式会社 | Nonwoven sheet like article for cleaning |
| JPH0241470A (en) * | 1988-07-26 | 1990-02-09 | Kanebo Ltd | Treatment of cloth consisting of conjugated yarn |
-
1992
- 1992-05-26 JP JP4133506A patent/JP2954782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05331773A (en) | 1993-12-14 |
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