JPH01272823A - Three-dimensional curl filament - Google Patents

Three-dimensional curl filament

Info

Publication number
JPH01272823A
JPH01272823A JP63102186A JP10218688A JPH01272823A JP H01272823 A JPH01272823 A JP H01272823A JP 63102186 A JP63102186 A JP 63102186A JP 10218688 A JP10218688 A JP 10218688A JP H01272823 A JPH01272823 A JP H01272823A
Authority
JP
Japan
Prior art keywords
filament
melting point
length
diameter
sheath
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
Application number
JP63102186A
Other languages
Japanese (ja)
Other versions
JP2756966B2 (en
Inventor
Sumio Tanaka
田中 澄雄
Sadaaki Nakajima
中嶋 定明
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.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Priority to JP63102186A priority Critical patent/JP2756966B2/en
Publication of JPH01272823A publication Critical patent/JPH01272823A/en
Application granted granted Critical
Publication of JP2756966B2 publication Critical patent/JP2756966B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Multicomponent Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

PURPOSE:To obtain the bulky title filament having excellent elasticity and suitable for a cushion material such as chair or mattress, by using a polymer having lower melting point among two kind of polyolefins having specified difference of melting point as a sheath component and forming these polyolefin into a filament. CONSTITUTION:A polymer having lower melting point among two kind of polyolefin resins having difference of melting point of >=20 deg.C such as polyethylene or polypropylene is used as a sheath and these polyolefin resins are spun at a composite ratio of 70/30-30/70 to afford an eccentric sheath-core type monofilament, which is then formed into a coil having length of 1/3 of filament length and diameter of 10times of filament diameter to provide the aimed filament.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は椅子やマツトレス等の詰物に利用できる嵩高で
弾力性に富んだクッション材およびこのクション材の原
料となる立体カールフィラメントとその製造方法に関す
る。
[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a bulky and highly elastic cushioning material that can be used as a filling for chairs, pinerests, etc., a three-dimensional curl filament that is a raw material for this cushioning material, and a method for producing the same. Regarding.

〔従来の技術〕[Conventional technology]

クッション材用の立体カールフィラメントの製造方法と
して、多数のローラー群を用いて合成繊維モノフィラメ
ントに一重撚りおよび二重撚りをかけ、熱セット後解撚
し、切断する方法(%公昭62−52056号公報、特
公昭62−5205’7号公報)が知られている。
As a method for manufacturing three-dimensional curl filaments for cushioning materials, a method is proposed in which synthetic fiber monofilaments are single-twisted and double-twisted using a large number of roller groups, and then untwisted and cut after being heat-set (% Kosho 62-52056). , Japanese Patent Publication No. 62-5205'7) is known.

また、立体カールフィラメント短繊維を圧縮成形し、接
着剤で固めてクッション材を製造する方法(特公昭62
−44057号公報)も公知である。
In addition, a method of manufacturing cushioning materials by compression molding three-dimensional curl filament short fibers and hardening them with adhesive (Special Publication No. 62
-44057) is also known.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記の立体カールフィラメントの公知の製造方法は多数
の製造工程と複雑な製造装置を必要とするものであり、
工程および装置の簡易化が望まれる。
The above-mentioned known methods for manufacturing three-dimensional curl filaments require a large number of manufacturing steps and complicated manufacturing equipment;
Simplification of the process and equipment is desired.

また、上記のクッション材の公知の製造方法は、接着剤
を使用するため、含漬装置と乾燥装置を必要とし、接着
剤の乾燥のために大量の熱エネルギーを消費する等改善
すべき点がある。
In addition, since the above-mentioned known manufacturing method for cushioning materials uses adhesive, it requires an impregnating device and a drying device, and a large amount of thermal energy is consumed to dry the adhesive, which requires improvement. be.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者等は立体カールフィラメントおよびこれを用い
たクッション材に関する上記諸課題の解決のため鋭意研
究の結果、融点差が20℃以上ある二種のポリオレフィ
ン樹脂を、その低融点のポリオレフィン樹脂を鞘成分と
するように、複合比70/30〜30/70で偏心鞘芯
型に複合紡糸し、得られた未延伸糸を70〜120℃で
4〜9倍に延伸し、次いで無張力下で95〜130’c
で熱処理することにより、フィラメント長の5分の1以
下のコイル長とフィラメント径の10倍以上のコイル径
を有する立体カールフィラメントが得られ、この立体カ
ールフィラメントから成るウェブを上記二種類のポリオ
レフィン樹脂の融点間の温度で融着処理することにより
、フィラメントが互にその接点で接着された、嵩高で弾
力性に富んだクッション材が得られることを知り本発明
を完成するに到った。
As a result of intensive research to solve the above-mentioned problems regarding three-dimensional curl filaments and cushioning materials using the same, the present inventors have developed two types of polyolefin resins with a melting point difference of 20°C or more, and a polyolefin resin with a lower melting point for a sheath. Components are spun into an eccentric sheath-core type at a composite ratio of 70/30 to 30/70, and the resulting undrawn yarn is stretched 4 to 9 times at 70 to 120°C, and then under no tension. 95-130'c
A three-dimensional curl filament having a coil length of one-fifth or less of the filament length and a coil diameter of ten times or more of the filament diameter is obtained by heat-treating the filament. The present invention was completed based on the knowledge that a bulky and highly elastic cushioning material in which filaments are bonded to each other at their contact points can be obtained by performing a fusion treatment at a temperature between the melting points of .

本発明で用いるポリオレフィン樹脂は、エチレン、プロ
ピレン、ブテン−1等のα−オレフィンを主体とする重
合体であって、これらのオレフィンの単独重合体、共重
合体あるいはこれら重合体の混合物であり、そのような
重合体として低密度ポリエチレン、高密度ポリエチレン
、線状低密度ポリエチレン、結晶性ポリプロピレン、ポ
リブテン−1、エチレンープロピレン共重合体、エチレ
ン・酢酸ビニル共重合体およびこれらの重合体の混合物
が例示できる。
The polyolefin resin used in the present invention is a polymer mainly composed of α-olefins such as ethylene, propylene, and butene-1, and is a homopolymer, copolymer of these olefins, or a mixture of these polymers, Such polymers include low density polyethylene, high density polyethylene, linear low density polyethylene, crystalline polypropylene, polybutene-1, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer and mixtures of these polymers. I can give an example.

本発明においては、上記ポリオレフィン樹脂のものを芯
成分として、複合比7o/30〜30 / 70で偏心
鞘芯型に複合紡糸する。融点の差が20℃未満であると
、後述のクッション材製造のための融着処理の許容温度
範囲が狭くなると共に立体カールの発現が不充分となり
、また複合比が’i’o/30〜30/γ0の範囲を超
したり同心鞘芯型の複合紡糸では立体カールの発現が不
充分とAるので好ましくない。
In the present invention, the above-mentioned polyolefin resin is used as a core component and composite spinning is performed in an eccentric sheath-core type at a composite ratio of 7o/30 to 30/70. If the difference in melting point is less than 20°C, the permissible temperature range for the fusing process for manufacturing the cushioning material described below will be narrowed, and the expression of three-dimensional curl will be insufficient, and the composite ratio will be 'i'o/30 ~ If the ratio exceeds the range of 30/γ0 or if the concentric sheath-core type composite spinning is used, it is not preferable because the expression of three-dimensional curl is insufficient.

このようにして得られた複合未延伸糸は、延伸温度フO
〜120℃で4〜9倍に延伸した後無張力下で95〜1
30℃で2〜60秒間熱処理することにより、フィラメ
ント長の3分の1以下のコイル長とフィラメント径の1
0倍以上のコイル径を有する立体カールフィラメントと
なる。延伸と熱処理は連続して行っても良く、延伸糸を
一旦貯蔵した後熱処理しても良い。また延伸糸を適当な
長さに切断した後に熱処理することもできる。熱処理の
熱源としては熱水、熱風あるいは赤外線ランプ等がいず
れも使用できる。
The composite undrawn yarn obtained in this way is
After stretching 4 to 9 times at ~120°C, 95 to 1
By heat treatment at 30℃ for 2 to 60 seconds, the coil length is less than one third of the filament length and one of the filament diameter.
It becomes a three-dimensional curl filament having a coil diameter of 0 times or more. The drawing and heat treatment may be performed continuously, or the drawn yarn may be once stored and then heat treated. Alternatively, the drawn yarn can be heat-treated after being cut into an appropriate length. As a heat source for heat treatment, hot water, hot air, an infrared lamp, or the like can be used.

ここで、コイル長とは、ある長さに切り取った立体カー
ルフィラメント試片の長さを無張力状態で測定した長さ
であり、フィラメント長とは上記試片のカールを展開し
て測定した長さである。両者の比は、長さ3〜10αの
試片5個についてそれぞれ測定したコイル長とフィラメ
ント長の比の平均値で表す。また、コイル径とは長さ1
0αの試片の平面投影図を用いて測定した立体カールフ
ィラメントのコイル外径の平均値であり、フィラメント
径とけ立体カールフィラメントを構成するフィラメント
自身の直径である。これらコイル長、コイル径およびフ
ィラメント径の概念を第1図および第2図に例示する。
Here, the coil length is the length of a three-dimensional curled filament specimen cut to a certain length and measured under no tension, and the filament length is the length measured by unrolling the curl of the specimen. It is. The ratio between the two is expressed as the average value of the ratio of the coil length to the filament length measured for five specimens each having a length of 3 to 10α. Also, the coil diameter is the length 1
This is the average value of the coil outer diameter of the three-dimensional curl filament measured using a plane projection view of a specimen of 0α, and the filament diameter is the diameter of the filament itself that constitutes the three-dimensional curl filament. The concepts of the coil length, coil diameter, and filament diameter are illustrated in FIGS. 1 and 2.

立体カールフィラメントの太さには特定な限定はないが
、エアフィルター用には30〜2000デニール、椅子
やマツトレスの詰物用には100〜3000デニール、
土木資材用には30〜3000デニールのものが好適に
用いられる。
There is no specific limit to the thickness of the three-dimensional curl filament, but it is 30 to 2,000 deniers for air filters, 100 to 3,000 deniers for filling chairs and pinerests,
For civil engineering materials, those having a denier of 30 to 3000 are preferably used.

このようにして得られた立体カールフィラメントをクッ
ション材とするには、その用途に応じた所定の型枠に所
望量だけ充填し、複合両成分の融点間の温度で融着処理
する。融着処理に用いる装置としては、熱風循環式加熱
装置が簡便であり、かつ、均一な加熱が可能であるので
好適である。このようにして得られたクッション材は繊
維の接点が鞘成分の融着により互に強固に接着されてお
り、繊維の大きなカール形状により嵩高であると共に極
めて弾力性に富み、強度の大きなものである。
In order to use the three-dimensional curl filament thus obtained as a cushioning material, it is filled in a desired amount into a predetermined mold according to its use, and is fused at a temperature between the melting points of both composite components. As the device used for the fusion process, a hot air circulation type heating device is suitable because it is simple and allows uniform heating. The cushioning material obtained in this way has contact points of fibers that are firmly adhered to each other by the fusion of the sheath components, and is bulky due to the large curl shape of the fibers, and is extremely elastic and strong. be.

実施例1 高密度ポリエチレン(メルトインデックスユ5、融点1
30℃)を鞘成分とし、結晶性ポリプロピレン(メルト
フローレート6、融点165℃)を芯成分とし、複合比
50150の偏心鞘芯型複合紡糸を紡糸ノズル径1.5
m、紡糸温度260℃、紡糸速度9.4 Fl 7分の
条件で行って、単糸繊度4,980デニールの未延伸糸
を得た。次いでこの未延伸糸を96℃の熱水槽を用い延
伸比5.0倍、延伸速度47.2tyLZ分で延伸し単
糸繊度1,000デニールヤ伸糸とし、繊維長128鶏
に切断後、95℃の熱水槽に30秒間浸漬して立体カー
ルフィラメントを得た。この立体カールフィラメントは
コイル長が平均39 m (コイル長/フィラメント長
== 0.3 )コイル径が平均11.3m(コイル径
/フィラメント径=24)であり、エアフィルターに好
適に利用できるものであった。
Example 1 High density polyethylene (melt index 5, melting point 1
30°C) as the sheath component, crystalline polypropylene (melt flow rate 6, melting point 165°C) as the core component, eccentric sheath-core type composite spinning with a composite ratio of 50150 was spun using a spinning nozzle diameter of 1.5.
The spinning process was carried out under the following conditions: m, spinning temperature: 260° C., spinning speed: 9.4 Fl, 7 minutes to obtain an undrawn yarn with a single fiber fineness of 4,980 deniers. Next, this undrawn yarn was drawn in a hot water bath at 96°C at a drawing ratio of 5.0 times and a drawing speed of 47.2 tyLZ to obtain a single yarn of 1,000 denier yarn, cut into fiber lengths of 128, and then heated at 95°C. A three-dimensional curl filament was obtained by immersing the filament in a hot water bath for 30 seconds. This three-dimensional curl filament has an average coil length of 39 m (coil length/filament length == 0.3) and an average coil diameter of 11.3 m (coil diameter/filament diameter = 24), and can be suitably used for air filters. Met.

実施例2 実施例1と同様に複合紡糸し、但し紡糸速度は3.7 
yx 7分として、単糸繊度12,656デニールの未
延伸糸を得た。この未延伸糸を96℃の熱水槽を有する
延伸装置を用い、延伸比6.0倍、延伸速度22.OF
ll 7分で延伸し、単糸繊度2.000デニールの延
伸糸とした。得られた延伸糸のトウを130℃の熱風循
環式ドライヤーで3分間熱処理して立体カールフィラメ
ントを得た。この立体カールフィラメントは(コイル長
/フィラメント長==0.25)、コイル径平均13.
1iut(コイル径/フィラメント径=21.8)であ
り、マツトレスの詰物に好適に利用できるものであった
Example 2 Composite spinning was carried out in the same manner as in Example 1, except that the spinning speed was 3.7.
yx 7 minutes, an undrawn yarn with a single yarn fineness of 12,656 denier was obtained. This undrawn yarn was drawn using a drawing device having a 96°C hot water bath at a drawing ratio of 6.0 times and a drawing speed of 22. OF
It was drawn for 7 minutes to obtain a drawn yarn with a single yarn fineness of 2.000 denier. The resulting drawn yarn tow was heat-treated for 3 minutes in a hot air circulation dryer at 130° C. to obtain a three-dimensional curl filament. This three-dimensional curl filament has an average coil diameter of 13.
1 iut (coil diameter/filament diameter = 21.8), and could be suitably used for filling pine tresses.

実施例3 デカブロモジフェニルオキサイドと三酸化アンチモンの
2:1混合物(重量比)を11.6%(重量)含有する
結晶性ポリプロピレン(メルトクローレート6、融点1
65℃)を芯成分とし、2.2ビス(4−(2,3ジブ
ロモプロポキシ)−3,5ジブロモフエニル)プロパン
と三酸化アンチモンの2:1混合物(重量比)を11.
6%(重t)含有する高密度ポリエチレン(メルトイン
デックス24、融点130℃)を鞘成分とし、複合比5
0150で実施例1と同様に複合紡糸、延伸、切断及び
熱処理を行って立体カールフィラメントを得た。得られ
た立体カールフィラメントは(コイル長/フィラメント
長=OJ))、(コイル径/フィラメント径=33)で
あつ(た。
Example 3 Crystalline polypropylene (melt chlorate 6, melting point 1) containing 11.6% (by weight) of a 2:1 mixture (by weight) of decabromodiphenyl oxide and antimony trioxide.
65°C) as the core component, and a 2:1 mixture (weight ratio) of 2.2bis(4-(2,3dibromopropoxy)-3,5dibromophenyl)propane and antimony trioxide (weight ratio).
The sheath component is high-density polyethylene (melt index 24, melting point 130°C) containing 6% (weight t), and the composite ratio is 5.
At 0150, composite spinning, stretching, cutting, and heat treatment were performed in the same manner as in Example 1 to obtain a three-dimensional curl filament. The obtained three-dimensional curl filament was (coil length/filament length=OJ)) and (coil diameter/filament diameter=33).

この立体カールフィラメントをカード機を用ろ、立体カ
ールフィラメントはその鞘成分の融着により互の接点に
おいて固着した、厚さ150鵡の不織布状のマットとな
った。このマットは反撥弾性が大きく椅子のクッション
材に適したものであった。
This three-dimensional curl filament was processed using a carding machine, and the three-dimensional curl filament became a non-woven mat having a thickness of 150 mm, which was fixed at mutual contact points by fusing of the sheath components. This mat had high rebound elasticity and was suitable as a cushion material for chairs.

実施例4 高密度ポリエチレン(メルトインデックス15、融点1
30℃)を鞘成分としポリエステル(極限粘度0.64
、融点255℃)を芯成分とし紡糸ノズル径1.Ox、
紡糸温度285℃、紡糸速度23m1分の条件で複合比
50150の偏心鞘芯型複合紡糸を行って単糸繊度45
0デニールの未延伸糸を得た。次いでこの未延伸糸を9
8℃の熱水槽を用い延伸比3.0倍、アニール槽80℃
、延伸速度70m/分で延伸し単糸繊度150デニール
の延伸糸を得た。得られた延伸糸(トウ〕を81翼冨に
切断し、100℃の熱風循環式ドライヤーで2分間熱処
理して立体カールフィラメントを得た。この立体カール
フィラメントはコイル長平均15n(コイル長/フィラ
メント長=o、1))、コイル径平均5IIm(コイル
径/フィラメント径= 33.3 )であった。
Example 4 High density polyethylene (melt index 15, melting point 1
The sheath component is polyester (intrinsic viscosity 0.64).
, melting point 255°C) as the core component and the spinning nozzle diameter 1. Ox,
Eccentric sheath-core type composite spinning with a composite ratio of 50150 was performed at a spinning temperature of 285°C and a spinning speed of 23 ml/min to obtain a single yarn fineness of 45.
An undrawn yarn of 0 denier was obtained. Next, this undrawn yarn was
Stretching ratio 3.0 times using 8℃ hot water bath, annealing tank 80℃
The yarn was drawn at a drawing speed of 70 m/min to obtain a drawn yarn having a single filament fineness of 150 denier. The obtained drawn yarn (tow) was cut into 81 blades and heat treated in a hot air circulation dryer at 100°C for 2 minutes to obtain a three-dimensional curl filament.The three-dimensional curl filament had an average coil length of 15n (coil length/filament The length = o, 1)), and the average coil diameter was 5 II m (coil diameter/filament diameter = 33.3).

この立体カールフィラメントを上下両面を60メツシユ
の金網で張った金型(縦横者200n1厚さ50 tm
 ) ifc充填し、150℃の熱風で3分間加熱する
ことKより、立体カールフィラメントの鞘成分の融着に
より形状が安定化された繊維成形体を得た。この繊維成
形体はバッキング材として好適に利用できた。
This three-dimensional curl filament was made into a mold (vertical and horizontal dimensions: 200 nm, thickness: 50 tm), with the top and bottom surfaces covered with 60 mesh wire mesh.
) Ifc filling and heating with hot air at 150° C. for 3 minutes, a fiber molded article whose shape was stabilized by fusion of the sheath component of the three-dimensional curl filament was obtained. This fiber molded article could be suitably used as a backing material.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図および第2図は立体カールフィラメントの斜視図
であり、図中(4)はカール長さを、(B)はカール径
を示す。 以上 特許出願人  チ ッ ソ 株 式 会 社代理人 弁
理士 佐々井 彌太部 同上  野中克彦
1 and 2 are perspective views of the three-dimensional curl filament, in which (4) indicates the curl length and (B) indicates the curl diameter. Patent applicant Chisso Co., Ltd. Company agent Patent attorney Yatabe Sasai Same as above Katsuhiko Nonaka

Claims (3)

【特許請求の範囲】[Claims] (1)融点差が20℃以上ある二種類のポリオレフィン
樹脂から成り、その低融点のポリオレフィン樹脂を鞘成
分とする偏心鞘芯型複合モノフィラメントであつて、フ
ィラメント長の3分の1以下のコイル長とフィラメント
径の 10倍以上のコイル径を有することを特徴とする立体カ
ーカフィラメント。
(1) An eccentric sheath-core composite monofilament consisting of two types of polyolefin resins with a melting point difference of 20°C or more and the low melting point polyolefin resin as a sheath component, with a coil length of one-third or less of the filament length. A three-dimensional carca filament characterized by having a coil diameter that is 10 times or more the filament diameter.
(2)融点差が20℃以上ある二種のポリオレフィン樹
脂を、その低融点のポリオレフィン樹脂を鞘成分とする
ように、複合比70/30〜30/70で偏心鞘芯型に
複合紡糸し、得られた未延伸糸を70〜120℃で4〜
9倍に延伸し、次いで無張力下で95〜130℃で熱処
理することを特徴とする立体カールフィラメントの製造
方法。
(2) Two types of polyolefin resins having a melting point difference of 20°C or more are composite-spun into an eccentric sheath-core type at a composite ratio of 70/30 to 30/70 so that the low melting point polyolefin resin is used as a sheath component, The obtained undrawn yarn was heated at 70 to 120°C for 4 to
A method for producing a three-dimensional curl filament, which comprises stretching the filament nine times and then heat-treating the filament at 95 to 130°C under no tension.
(3)融点差が20℃以上ある二種類のポリオレフィン
樹脂を、その低融点のポリオレフィン樹脂を鞘成分とす
る偏心鞘芯型モノフィラメントであつて、フィラメント
長の3分の1以下のコイル長とフィラメント径の10倍
以上のコイル径を有する立体カールフィラメントから成
るウェブを、上記二種類のポリオレフィン樹脂の融点間
の温度で融着処理して得られる、フィラメントが互にそ
の接点で接着されているクッション材。
(3) An eccentric sheath-core type monofilament in which two types of polyolefin resins with a melting point difference of 20°C or more are used as a sheath component, and the filament has a coil length of one-third or less of the filament length. A cushion in which the filaments are bonded to each other at their contact points, obtained by fusing a web consisting of three-dimensional curled filaments having a coil diameter 10 times or more the coil diameter at a temperature between the melting points of the above two types of polyolefin resins. Material.
JP63102186A 1988-04-25 1988-04-25 3D curl filament Expired - Fee Related JP2756966B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63102186A JP2756966B2 (en) 1988-04-25 1988-04-25 3D curl filament

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63102186A JP2756966B2 (en) 1988-04-25 1988-04-25 3D curl filament

Publications (2)

Publication Number Publication Date
JPH01272823A true JPH01272823A (en) 1989-10-31
JP2756966B2 JP2756966B2 (en) 1998-05-25

Family

ID=14320636

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2756966B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011021300A (en) * 2009-07-17 2011-02-03 Daiwabo Holdings Co Ltd Crimping composite fiber and fibrous mass comprising the same
JP2016160564A (en) * 2015-03-04 2016-09-05 東洋紡Stc株式会社 Short fiber for granulated wool and granulated wool, and wadding product using the same
CN110241479A (en) * 2019-06-12 2019-09-17 佛山新晟泰新材料技术有限公司 A kind of permanent curl Europe root yarn and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212830A (en) * 1975-07-21 1977-01-31 Kyocera Corp Exposure warning circuit
JPS5517807B2 (en) * 1976-06-18 1980-05-14
JPS62299514A (en) * 1986-06-10 1987-12-26 Daiwa Spinning Co Ltd Thermally bondable hollow conjugated yarn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212830A (en) * 1975-07-21 1977-01-31 Kyocera Corp Exposure warning circuit
JPS5517807B2 (en) * 1976-06-18 1980-05-14
JPS62299514A (en) * 1986-06-10 1987-12-26 Daiwa Spinning Co Ltd Thermally bondable hollow conjugated yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011021300A (en) * 2009-07-17 2011-02-03 Daiwabo Holdings Co Ltd Crimping composite fiber and fibrous mass comprising the same
JP2016160564A (en) * 2015-03-04 2016-09-05 東洋紡Stc株式会社 Short fiber for granulated wool and granulated wool, and wadding product using the same
CN110241479A (en) * 2019-06-12 2019-09-17 佛山新晟泰新材料技术有限公司 A kind of permanent curl Europe root yarn and preparation method thereof

Also Published As

Publication number Publication date
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