JPS62184118A - Elastic conjugate fiber and production thereof - Google Patents
Elastic conjugate fiber and production thereofInfo
- Publication number
- JPS62184118A JPS62184118A JP2179486A JP2179486A JPS62184118A JP S62184118 A JPS62184118 A JP S62184118A JP 2179486 A JP2179486 A JP 2179486A JP 2179486 A JP2179486 A JP 2179486A JP S62184118 A JPS62184118 A JP S62184118A
- Authority
- JP
- Japan
- Prior art keywords
- component
- elastic
- elongation
- conjugate
- heat treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000004743 Polypropylene Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 24
- -1 polypropylene Polymers 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 238000009987 spinning Methods 0.000 abstract description 8
- 229920001684 low density polyethylene Polymers 0.000 abstract description 2
- 239000004702 low-density polyethylene Substances 0.000 abstract description 2
- 239000000306 component Substances 0.000 description 26
- 230000005484 gravity Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 210000004177 elastic tissue Anatomy 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は［Ｘ弾性回復率が秀れかつ伸長時の応力が小さ
いポリプロピレン系弾性複合繊維に関する。本発明の弾
性複合繊維は織布、編布あるいは不織布に加工して包帯
、サポータ−、スポーツウェア等の用途に好ましく用い
られる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polypropylene elastic conjugate fiber that has an excellent X-elastic recovery rate and low stress during elongation. The elastic conjugate fiber of the present invention is preferably processed into woven, knitted or non-woven fabrics for use in bandages, supports, sportswear and the like.
ポリプロピレン繊維は安価、低比重、高強力で耐薬品性
に秀れる等の長所を有するため、ロープ、網等の産業資
材、布団綿、カーペット等の家庭用品、ダイアパー表面
材等の衛生用品等多くの用途に用いられている一近年ボ
リプロビレン繊維の疎水性に着目し、この繊維を肌着、
スポーツウェア等の衣料に使用する試みがなされるよう
になシ、身体の動きに良くフィツトさせるため適度な伸
縮性を有するポリプロピレン製布地が要求されるように
なった。伸縮性衣料用繊維としては１００チ伸長時の弾
性回復率が８０％以上でかつ伸長応力が０．６，９／ｄ
程度以下のものが適当である。Polypropylene fibers have the advantages of being inexpensive, low specific gravity, high strength, and excellent in chemical resistance, so they are used in many industrial materials such as ropes and nets, household items such as futon cotton and carpets, and sanitary products such as diaper surface materials. In recent years, we have focused on the hydrophobicity of polypropylene fiber, which is used for underwear, underwear, etc.
As attempts have been made to use polypropylene in clothing such as sportswear, there has been a demand for polypropylene fabrics that have appropriate elasticity to better fit the body's movements. As a stretchable clothing fiber, the elastic recovery rate when stretched by 100 inches is 80% or more and the stretching stress is 0.6.9/d.
A level below this level is appropriate.
従来のポリプロピレン繊維は紡糸温度２２０〜３００℃
、紡糸速度５ｏｏ〜８ｏｏｒＩＬ／ｌＩｒ１Ｉｌで紡糸
し、１１０〜１２０℃で３〜６倍に延伸し、約１００℃
で２００〜３００秒熱処理して得られ、一般に伸び率は
２０〜６０％、弾性回復率は５０チ以下であシ呻縮性の
乏しい繊維であシ、織編の組織を工夫し、ポリウレタン
等の弾性樹脂で後加工する等の手段がとられてきたが、
コスト高となシかつ性能も充分ではないため、繊維自身
に伸縮性を持たせることが要望されてきた。Conventional polypropylene fibers have a spinning temperature of 220-300℃
, spun at a spinning speed of 5oo to 8oorIL/lIr1Il, stretched 3 to 6 times at 110 to 120°C, and approximately 100°C.
It is obtained by heat treatment for 200 to 300 seconds, and generally has an elongation rate of 20 to 60%, an elastic recovery rate of 50 inches or less, and is made of fibers with poor shrinkage properties, and is made of polyurethane etc. Measures such as post-processing with elastic resin have been taken, but
Since the cost is high and the performance is not sufficient, there has been a demand for the fiber itself to have elasticity.
ポリプロピレンを１ｏｏｏｍ／ｍｍ以上の高速で紡糸し
た後、約１０５〜１６０℃で３０〜６０分間アニーリン
グすることにより弾性回復率の優れた繊維が得られるこ
とが知られている。このような繊維はハードエラスチッ
ク繊維と呼ばれ、１００チ伸長時において１００％近く
の弾性回復率を示す伸縮性に富んだものであるが、伸長
時の伸長応力が１９７ｄ以上であり、伸縮性衣料材料と
しては柔軟性が不充分である。たとえば、ハードエラス
チック繊維を用いたニードルパンチ法あるいは接着剤に
よる不織布を伸ばそうとすると、繊維が充分伸びる以前
に繊維の交絡点や接着点の破断が起り、充分な伸縮効果
が発揮できない。また編織物に用いる場合でも、身体の
動きに応じた柔軟な伸縮性を持たせるにはハードエラス
チックフィラメントの密度を極く小さなものにする必要
があり、実用的でない。It is known that fibers with excellent elastic recovery can be obtained by spinning polypropylene at a high speed of 1 ooom/mm or more and then annealing it at about 105 to 160°C for 30 to 60 minutes. Such fibers are called hard elastic fibers and are highly stretchable, exhibiting an elastic recovery rate of nearly 100% when stretched by 100 cm, but the elongation stress at the time of stretching is 197 d or more, making it difficult to stretch clothing. The material has insufficient flexibility. For example, when trying to stretch a nonwoven fabric using a needle punch method or adhesive using hard elastic fibers, the intertwining points and bonding points of the fibers break before the fibers are sufficiently stretched, making it impossible to achieve a sufficient stretching effect. Furthermore, even when used in knitted fabrics, the density of the hard elastic filaments needs to be extremely small in order to have flexible elasticity that corresponds to the movement of the body, which is not practical.
本発明者等は弾性回復率に優れかつ伸長応力の小さなポ
リプロピレン系繊維の製造のため鋭意研究の結果、結晶
性ポリプロピレンから成る第１成分と繊維形成性熱可塑
性樹脂から成る第２成分を複合比（第１成分／第２成分
）６０／４０〜４０／６０で鞘芯型あるいは並列型に配
して複合紡糸した未延伸糸を延伸温度ｌＯ〜５０℃で延
伸倍率２倍以下に延伸した後、熱処理温度（Ｔ）が１０
０ないし１５０℃で熱処理時間＋１）が０９１３以上の
条件で熱処理することＫより、１００％伸長時の弾性回
復率が８０チ以上でかつ伸長応力が０．６ｇ／ｄ以下の
弾性複合繊維が得られることを知シ本発明を完成するに
到った。As a result of intensive research in order to produce polypropylene fibers with excellent elastic recovery and low elongation stress, the inventors of the present invention have determined that a first component consisting of crystalline polypropylene and a second component consisting of a fiber-forming thermoplastic resin are combined in a composite ratio. (1st component/2nd component) After stretching the undrawn yarn, which is composite spun in a sheath-core type or parallel type at a ratio of 60/40 to 40/60, at a stretching temperature of lO to 50°C and a draw ratio of 2 times or less. , the heat treatment temperature (T) is 10
By performing heat treatment at 0 to 150°C under conditions where the heat treatment time +1) is 0913 or more, an elastic composite fiber with an elastic recovery rate of 80 cm or more at 100% elongation and an elongation stress of 0.6 g/d or less can be obtained. The present invention was completed after realizing that
本発明で第１成分として用いる結晶性ポリプロピレンと
はプロピレンの単独重合体のみならずプロピレンを主成
分としエチレンあるいはそチ未満では繊維の弾性回復率
が不充分となる。The crystalline polypropylene used as the first component in the present invention is not only a homopolymer of propylene, but also has propylene as its main component, and if it is ethylene or less, the elastic recovery rate of the fibers will be insufficient.
本発明で第２成分として用いる熱可塑性樹脂としては結
晶性ポリプロピレン以外のポリオレフィン、ポリエステ
ル、ポリアミド等合成繊維の製造に通常用いられる熱可
塑性樹脂の他、エチレン酢酸ビニル共重合体、エチレン
プロピレンラバー等の熱可塑性樹脂の中から適宜選択す
ることができる。Thermoplastic resins used as the second component in the present invention include polyolefins other than crystalline polypropylene, polyesters, polyamides, and other thermoplastic resins commonly used in the production of synthetic fibers, as well as ethylene-vinyl acetate copolymers, ethylene-propylene rubber, etc. It can be appropriately selected from thermoplastic resins.
これら第１成分と第２成分の組み合せは紡糸して得られ
る複合繊維に成分剥離が生じないことを基準に選択すれ
ば良いが、各成分がいずれも６０ ｗｔ％を超さない範
囲で複合させねばならない。第１成分が６０ ｗｔ％を
超すと、複合繊維は１００チ伸長時の伸長応力が０．６
．９／ｄ以上となり、第２成分が６０ ｗｔ％を超すと
１００％伸長時の弾性回復率が８０％未満となり、いず
れも好ましくない。The combination of the first component and the second component may be selected based on the fact that component separation does not occur in the composite fiber obtained by spinning, but it is preferable to combine the components so that each component does not exceed 60 wt%. Must be. When the first component exceeds 60 wt%, the elongation stress of the composite fiber when stretched by 100 cm is 0.6.
．． 9/d or more, and if the second component exceeds 60 wt%, the elastic recovery rate at 100% elongation will be less than 80%, both of which are unfavorable.
選択された両成分は並列型あるいは鞘芯型に配して複合
紡糸される。第１成分を芯成分側に配したものは伸長応
力が相対的に小さく、第１成分を鞘側に配したものは弾
性回復率が相対的に大きい。Both selected components are arranged in a parallel type or sheath-core type and composite spun. The one in which the first component is placed on the core component side has a relatively small elongation stress, and the one in which the first component is placed on the sheath side has a relatively high elastic recovery rate.
このようにして得られた未延伸糸は延伸温度１０ないし
５０℃で２倍以下の延伸比で延伸された後、熱処理温度
ケ）が１００〜１５０℃で熱処理時間＋１）が０．９１
３ 秒以上の条件で熱処理される。延伸温度が１
０℃未満では延伸性が悪るく、５０℃を超すと得られる
複合繊維の弾性回復率が低下するため好ましくない。延
伸比が２倍を超すと弾性回復率は低下し、伸長応力は増
加するため好ましくない。熱処理温度が１００℃未満で
は有効な熱処理に要する時間が３０分を超すよう罠なり
実用的ではなく、１５０℃を超すと第１成分である結晶
性ポリプロピレンの軟化点以上となシ複合繊維に熱収縮
が発生し好ましくない。熱処理時間（１）が０．９１３
秒（Ｔは熱処理温度、℃）未満では得られる複合
繊維の弾性回復率が不充分となる。熱処理には熱風、蒸
気、赤外線等任意の加熱手段が利用できるが、迅速、均
質かつ簡便な熱処理が可能なことから熱風吸引式乾燥機
が好適である。The undrawn yarn thus obtained is drawn at a drawing temperature of 10 to 50°C and a drawing ratio of 2 times or less, and then the heat treatment temperature (k) is 100 to 150°C and the heat treatment time +1) is 0.91.
Heat treated for 3 seconds or more. The stretching temperature is 1
If the temperature is less than 0°C, the drawability will be poor, and if it exceeds 50°C, the elastic recovery rate of the composite fiber obtained will decrease, which is not preferable. If the stretching ratio exceeds 2 times, the elastic recovery rate decreases and the elongation stress increases, which is not preferable. If the heat treatment temperature is less than 100°C, the time required for effective heat treatment will exceed 30 minutes, which is impractical, and if it exceeds 150°C, the temperature will exceed the softening point of the first component, crystalline polypropylene, and the composite fiber will be heated. Shrinkage occurs, which is undesirable. Heat treatment time (1) is 0.913
If it is less than 1 second (T is the heat treatment temperature, °C), the elastic recovery rate of the resulting composite fiber will be insufficient. Any heating means such as hot air, steam, and infrared rays can be used for the heat treatment, but a hot air suction dryer is preferred because it allows rapid, homogeneous, and simple heat treatment.
第２成分に第１成分の融点より２０℃以上低の素材とし
て有用であシ、更にこの第２成分を鞘成分に用いた弾性
複合繊維は捲縮が少く、熱接着法による接着点が多いこ
とがら柔軟でかつ強度の大きな伸縮性不織布の素材とし
て有用である。It is useful as a material whose melting point is 20°C or more lower than the melting point of the first component for the second component, and furthermore, elastic composite fibers using this second component as the sheath component have less crimp and many bonding points by thermal bonding. It is useful as a material for stretchable nonwoven fabrics that are extremely flexible and strong.
本発明の弾性複合線維は１００％伸長時の弾性回復率が
８０％以上あり、通常のポリプロピレン線維に比べて非
常に伸縮性に富むと共に、１００チ伸長時の伸長応力が
０．６．９／ｄ以下でアシ、ハードエラスチック構造の
ポリプロピレン繊維に比べて柔軟性に富んでおり、柔ら
かな伸縮性を有する織布あるいは不織布等の素材として
好適である。The elastic composite fiber of the present invention has an elastic recovery rate of 80% or more at 100% elongation, is extremely stretchable compared to ordinary polypropylene fiber, and has an elongation stress of 0.6.9/ d or less, it is more flexible than polypropylene fibers with a hard elastic structure, and is suitable as a material for soft stretchable woven or nonwoven fabrics.
以下に本発明を実施例および比較例により具体的に説明
する。The present invention will be specifically explained below using Examples and Comparative Examples.
１００チ伸長時の弾性回復率： ＪＩＳ Ｌ １０１５
に準じ、自記記録式定速伸長形引張試験機を用い、初期
荷重１ｇ／１５ｄのもとで、握み間隔１００朋で試料を
取シ付け、引張速度５０％／―で１００％まで伸長した
後直ちに同じ速度で除重し、握み間隔が１００ｎに達し
た時から２分間停止する。停止期間経過後ふたたび同じ
速度で＊’ｌし、伸長応力が初期荷重に達した時点の伸
度（１％）を測定し、弾性回復率（チ）−１００−７を
算出する。Elastic recovery rate at 100 inch elongation: JIS L 1015
Using a self-recording constant speed extension type tensile testing machine, the sample was mounted at an initial load of 1 g/15 d, with a grip interval of 100 mm, and was elongated to 100% at a tensile rate of 50%/-. Immediately after that, the weight is removed at the same speed and stopped for 2 minutes when the gripping interval reaches 100n. After the stopping period has elapsed, *'l is performed again at the same speed, the elongation (1%) at the time when the elongation stress reaches the initial load is measured, and the elastic recovery rate (chi) -100-7 is calculated.
１００チ伸長時の伸長応カニ上記伸長試験の記録から読
み取る。Elongation response when elongated by 100 inches is read from the record of the above elongation test.
実施例１〜５、比較例１〜５
第１成分として比重０．９０５メルトフローレート８の
結晶性ポリプロピレン（ＰＰ−１）または比ｉｏ、９１
０メルトフローレート８の結晶性ポリプロピｖ ：ｙ
（ＰＰ−２）、第２成分として比重０．９１８メルトフ
ローレート１８の低密度ポリエチレン（ＰＥ−１）、分
子量（Ｍｎ）９７００Ｃ＋ナイロン−６（Ｎｙｌ−６）
、比重０．８８０メル）７ｏ−レー）３０工チレン含
ｆｉｔ２０ｗｔ％のエチレン・プロピレン共重合体を用
いて鞘芯型に紡糸し、ゴデツトロールにより延伸し、熱
風吸引式乾燥器で熱処理して複合繊維を得た。紡糸延伸
、熱処理の各条件と繊維物性を第１表に示した。実施例
に示されるように本発明の条件を満足する繊維は優れた
弾性回復率と低い伸長応力を有するが、比較例で示され
るように、本発明の条件を満足しない繊維はこれらの物
性のいずれがあるいはいずれもが劣ったものであった。Examples 1 to 5, Comparative Examples 1 to 5 Crystalline polypropylene (PP-1) with a specific gravity of 0.905 and a melt flow rate of 8 or a specific gravity of 91 as the first component
Crystalline polypropylene with a melt flow rate of 8: y
(PP-2), low density polyethylene (PE-1) with specific gravity 0.918 and melt flow rate 18 as the second component, molecular weight (Mn) 9700C + nylon-6 (Nyl-6)
, specific gravity 0.880 mel) 7o-ray) 30 ethylene/propylene copolymer containing 20 wt% of polyethylene is spun into a sheath-core type, stretched with a godet roll, and heat treated with a hot air suction dryer to produce a composite fiber. I got it. Table 1 shows the conditions for spinning and drawing, heat treatment, and fiber properties. As shown in the Examples, fibers that meet the conditions of the present invention have excellent elastic recovery and low elongation stress, but as shown in Comparative Examples, fibers that do not meet the conditions of the present invention have poor physical properties. Either or both were inferior.
実施例６．７、比較例６
第１成分として前記ＰＰ−１またはＰＰ−２を用い、第
２成分として前記ＰＥ−１またはメルト７０−レート３
２酢酸ビニル含量５ ｗｔ％のエチレン酢酸ビニル共重
合体（ＥＶＡ）を用い、並列型に紡糸し、前記同様に延
伸、熱処理して複合繊維を得た。紡糸、延伸、熱処理の
各条件と繊維物性を第２表に示した。並列型複合繊維で
あっても本発明の条件を清足する繊維は優れた弾性回復
率と低い伸長応力を有していた。Example 6.7, Comparative Example 6 The above PP-1 or PP-2 was used as the first component, and the above PE-1 or Melt 70-Rate 3 was used as the second component.
An ethylene vinyl acetate copolymer (EVA) having a vinyl diacetate content of 5 wt% was spun in parallel, drawn and heat treated in the same manner as above to obtain a composite fiber. The spinning, drawing, and heat treatment conditions and fiber properties are shown in Table 2. Even if it is a parallel type conjugate fiber, the fiber that satisfies the conditions of the present invention has an excellent elastic recovery rate and low elongation stress.
Claims (4)
ポリプロピレン以外の熱可塑性樹脂から成る第２成分と
を複合比（第１成分／第２成分）６０〜４０／４０〜６
０で鞘芯型あるいは並列型に配して得た複合未延伸糸を
延伸温度１０〜５０℃で延伸倍率２倍以下に延伸し、次
いで 熱処理温度（Ｔ）が１００ないし１５０℃で熱処理時間
（ｔ）が０．９１３＾Ｔ＾−＾１＾７＾０（秒）以上で
熱処理して得られる、１００％伸長時の弾性回復率およ
び伸長応力がそれぞれ８０％以上および０．６ｇ／ｄ以
下であることを特徴とする弾性複合繊維。(1) Composite ratio of the first component consisting of crystalline polypropylene and the second component consisting of a thermoplastic resin other than crystalline polypropylene (first component/second component) 60-40/40-6
The composite undrawn yarn obtained by arranging it in a sheath-core type or parallel type at a temperature of 10 to 50°C is stretched to a draw ratio of 2 times or less, and then the heat treatment temperature (T) is 100 to 150°C and the heat treatment time ( t) is 0.913^T^-^1^7^0 (seconds) or more, and the elastic recovery rate and elongation stress at 100% elongation are 80% or more and 0.6 g/d or less, respectively. An elastic composite fiber characterized by:
点の熱可塑性物質である特許請求の範囲第１項記載の弾
性複合繊維。(2) The elastic conjugate fiber according to claim 1, wherein the second component is a thermoplastic substance having a melting point 20° C. or more lower than the melting point of the first component.
項記載の弾性複合繊維。(3) Claim 2 in which the second component is disposed on the sheath component side
Elastic conjugate fibers described in Section 1.
ポリプロピレン以外の熱可塑性樹脂から成る第２成分と
を複合比（第１成分／第２成分）６０〜４０／４０〜６
０で鞘芯型あるいは並列型に配して得た複合未延伸糸を
延伸温度１０〜５０℃で延伸倍率２倍以下に延伸し、次
いで 熱処理温度（Ｔ）が１００ないし１５０℃で熱処理時間
（ｔ）が０．９１３＾Ｔ＾−＾１＾７＾０（秒）以上で
熱処理することを特徴とする、１００％伸長時の弾性回
復率および伸長応力がそれぞれ８０％以上および０．６
ｇ／ｄ以下である弾性複合繊維の製造方法。(4) Composite ratio (first component/second component) of the first component consisting of crystalline polypropylene and the second component consisting of a thermoplastic resin other than crystalline polypropylene (first component/second component) 60-40/40-6
The composite undrawn yarn obtained by arranging it in a sheath-core type or parallel type at a temperature of 10 to 50°C is stretched to a draw ratio of 2 times or less, and then the heat treatment temperature (T) is 100 to 150°C and the heat treatment time ( t) is 0.913^T^-^1^7^0 (seconds) or more, and the elastic recovery rate and elongation stress at 100% elongation are 80% or more and 0.6, respectively.
A method for producing an elastic conjugate fiber having g/d or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179486A JPH0735607B2 (en) | 1986-02-03 | 1986-02-03 | Elastic composite fiber and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179486A JPH0735607B2 (en) | 1986-02-03 | 1986-02-03 | Elastic composite fiber and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62184118A true JPS62184118A (en) | 1987-08-12 |
| JPH0735607B2 JPH0735607B2 (en) | 1995-04-19 |
Family
ID=12064958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2179486A Expired - Lifetime JPH0735607B2 (en) | 1986-02-03 | 1986-02-03 | Elastic composite fiber and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735607B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000008243A1 (en) * | 1998-08-03 | 2000-02-17 | Bba Nonwoven Simpsonville, Inc. | Elastic nonwoven fabric prepared from bi-component filaments |
| US7462573B2 (en) | 2002-02-20 | 2008-12-09 | Chisso Corporation | Elastic long-fiber non-woven fabric, and fabric product using the same |
| US7662323B1 (en) | 2004-03-03 | 2010-02-16 | Kraton Polymers U.S. Llc | Elastomeric bicomponent fibers comprising block copolymers having high flow |
| JP2010275935A (en) * | 2009-05-28 | 2010-12-09 | Toyota Motor Corp | Variable valve apparatus for internal combustion engine |
| US8186318B2 (en) | 2009-03-12 | 2012-05-29 | Toyota Jidosha Kabushiki Kaisha | Variable valve operating apparatus for internal combustion engine |
| JP2013204162A (en) * | 2012-03-27 | 2013-10-07 | Uni Charm Corp | Method for manufacturing stretchable nonwoven fabric, and stretchable nonwoven fabric |
| US8955476B2 (en) | 2009-11-25 | 2015-02-17 | Toyota Jidosha Kabushiki Kaisha | Variable valve operating apparatus for internal combustion engine |
-
1986
- 1986-02-03 JP JP2179486A patent/JPH0735607B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000008243A1 (en) * | 1998-08-03 | 2000-02-17 | Bba Nonwoven Simpsonville, Inc. | Elastic nonwoven fabric prepared from bi-component filaments |
| EP1443132A2 (en) * | 1998-08-03 | 2004-08-04 | BBA Nonwovens Simpsonville, Inc. | Elastic nonwoven fabric prepared from bi-component filaments |
| EP1443132A3 (en) * | 1998-08-03 | 2004-12-29 | BBA Nonwovens Simpsonville, Inc. | Elastic nonwoven fabric prepared from bi-component filaments |
| US7462573B2 (en) | 2002-02-20 | 2008-12-09 | Chisso Corporation | Elastic long-fiber non-woven fabric, and fabric product using the same |
| US7662323B1 (en) | 2004-03-03 | 2010-02-16 | Kraton Polymers U.S. Llc | Elastomeric bicomponent fibers comprising block copolymers having high flow |
| US7910208B2 (en) | 2004-03-03 | 2011-03-22 | Kraton Polymers U.S. Llc | Elastomeric bicomponent fibers comprising block copolymers having high flow |
| US8003209B2 (en) | 2004-03-03 | 2011-08-23 | Kraton Polymers Us Llc | Elastomeric bicomponent fibers comprising block copolymers having high flow |
| US8186318B2 (en) | 2009-03-12 | 2012-05-29 | Toyota Jidosha Kabushiki Kaisha | Variable valve operating apparatus for internal combustion engine |
| JP2010275935A (en) * | 2009-05-28 | 2010-12-09 | Toyota Motor Corp | Variable valve apparatus for internal combustion engine |
| US8955476B2 (en) | 2009-11-25 | 2015-02-17 | Toyota Jidosha Kabushiki Kaisha | Variable valve operating apparatus for internal combustion engine |
| JP2013204162A (en) * | 2012-03-27 | 2013-10-07 | Uni Charm Corp | Method for manufacturing stretchable nonwoven fabric, and stretchable nonwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735607B2 (en) | 1995-04-19 |
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