JPH05247724A - Heat-bondable fiber - Google Patents
Heat-bondable fiberInfo
- Publication number
- JPH05247724A JPH05247724A JP4076040A JP7604092A JPH05247724A JP H05247724 A JPH05247724 A JP H05247724A JP 4076040 A JP4076040 A JP 4076040A JP 7604092 A JP7604092 A JP 7604092A JP H05247724 A JPH05247724 A JP H05247724A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- heat
- polyester
- temperature
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 36
- 229920000728 polyester Polymers 0.000 claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 20
- 239000000306 component Substances 0.000 claims abstract description 18
- 239000000806 elastomer Substances 0.000 claims abstract description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 239000008358 core component Substances 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 7
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 abstract description 31
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 17
- -1 Polyethylene terephthalate Polymers 0.000 description 17
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 238000003856 thermoforming Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- OVPXRLUTUWRYEY-UHFFFAOYSA-N dimethyl naphthalene-1,8-dicarboxylate Chemical compound C1=CC(C(=O)OC)=C2C(C(=O)OC)=CC=CC2=C1 OVPXRLUTUWRYEY-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】ポリエステル立体巻縮糸を母材と
したリサイクル可能な耐熱耐ヘタリ性の良好な車両用ク
ッション材に適した熱接着繊維に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-bondable fiber having a polyester three-dimensional crimped yarn as a base material, which is suitable for a cushioning material for a vehicle, which is recyclable and has a good heat and fatigue resistance.
【０００２】[0002]
【従来の技術】ポリエステル立体巻縮糸を母材としたク
ッション材用途に使用される熱接着繊維は非エラストマ
ー系低融点ポリマーをシース部に用いたものが公知であ
る。しかし、これらのポリマーを用いたものは弾性回復
力がなく、耐熱耐久性が劣るものであった。特に自動
車、電車等の加熱条件下での耐久性が著しく劣るため家
具、ベッド用には使用されているが車両用には未だ使用
されていない。接着成分としてゴム系バインダーのエラ
ストマーを用いたものは公知であるがこれはポリエステ
ルと使用すると異成分のためか回収が困難となる。2. Description of the Related Art As a heat-bonding fiber used for a cushion material having a polyester three-dimensional crimped yarn as a base material, a non-elastomer low melting point polymer is used for a sheath portion. However, those using these polymers did not have elastic recovery and were inferior in heat resistance and durability. In particular, since it is extremely inferior in durability under heating conditions of automobiles, trains, etc., it is used for furniture and beds, but has not yet been used for vehicles. It is known that an elastomer of a rubber binder is used as an adhesive component, but if this is used with polyester, it may be difficult to collect it because it is a different component.
【０００３】エラストマー（ポリエステル）は公知であ
る。又、ポリエステルエラストマーの複合糸も公知であ
るがそれらを用いたクッション材の温度７０℃での耐熱
耐久性は充分とは言い難い特定の耐熱耐ヘタリ性を有す
るものを特にクッション用バインダー成分として、用い
るものは知られていない。Elastomers (polyesters) are known. Although polyester elastomer composite yarns are also known, those having a specific heat and fatigue resistance at a temperature of 70 ° C. of a cushioning material using them, which are difficult to say, are particularly used as a binder component for a cushion. The one to use is unknown.
【０００４】[0004]
【発明が解決しようとする課題】有用なポリエステルと
してポリエチレンテレクタレート（ＰＥＴ）立体巻縮糸
が知られているが、ＰＥＴ繊維のガラス転位点（Ｔｇ）
は、６９℃以下であるため大きな力が掛かると接点が非
エラストマーポリマーで固定されているので力が分散で
きず塑性変形を生じ耐ヘタリ性が劣る。又、接点を作る
接着成分もＴｇがＰＥＴより低いため同時に塑性変形
し、ヘタリを促進する。Polyethylene terephthalate (PET) three-dimensional crimped yarn is known as a useful polyester, but the glass transition point (Tg) of PET fiber is known.
Since the temperature is 69 ° C. or less, the contact is fixed with a non-elastomeric polymer when a large force is applied, so that the force cannot be dispersed and plastic deformation occurs, resulting in poor settling resistance. Further, since the adhesive component for forming the contact point has Tg lower than that of PET, it is plastically deformed at the same time and promotes settling.
【０００５】一方エラストマーを接点とするものは、ポ
リエステル以外では、溶剤系、水系のものでゴム、ウレ
タンなどが知られているが、耐熱耐ヘタリ性に優れてい
るが、リサイクル不可のため環境汚染の問題があり好ま
しくない。公知のポリエステルエストマーをバインダー
成分として用いた場合、ソフトセグメントの量が多くな
り回復性は良くなるが、耐熱性が劣り、ハードセグメン
ト量を多くすると耐熱性は向上するが回復性は低下し、
結果として共にポリウレタン並みの耐熱耐久性を付与す
ることはできなくなる。On the other hand, other than polyester, those using an elastomer as a contact point are known to be solvent-based or water-based, and rubber, urethane, etc. are known. There is a problem of, and it is not preferable. When using a known polyester elastomer as a binder component, the amount of the soft segment is increased and the recoverability is improved, but the heat resistance is poor, and the heat resistance is improved when the amount of the hard segment is increased, but the recoverability is decreased,
As a result, it becomes impossible to impart the same heat resistance and durability as polyurethane.
【０００６】本発明は、上述の従来技術の欠点を解決
し、ポリウレタンのような耐熱耐久性を付与でき、リサ
イクル可能なポリエステル系熱接着成分をシース成分と
した熱接着繊維を提供せんとするものである。The present invention solves the above-mentioned drawbacks of the prior art and provides a heat-bondable fiber having a sheath component of a recyclable polyester-based heat-bondable component, which can impart heat resistance and durability like polyurethane. Is.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
の手段、即ち、本発明は、シース・コア型の２成分系繊
維であり、シース成分は、融点（Ｔｍ1 ）が１６０℃〜
２２０℃、Ｔａｎδのβ分散ピーク温度（Ｔβ）が−４
０℃以下、Ｔａｎδのα分散立上り温度（Ｔαｃｒ）が
５０℃以上のポリエステルエーテルエラストマーよりな
り、コア成分は、融点（Ｔｍ2 ）がＴｍ1 より２０℃以
上高い値を示す非エラストマーポリエステルよりなるこ
とを特徴とする熱接着繊維である。[Means for Solving the Problems] Means for solving the above problems, that is, the present invention is a sheath-core type bicomponent fiber, wherein the sheath component has a melting point (Tm 1 ) of 160 ° C.
220 ° C, Tan δ β dispersion peak temperature (Tβ) is -4
A polyester ether elastomer having a Tan δ α dispersion rising temperature (Tαcr) of 50 ° C. or higher and a core component made of a non-elastomeric polyester having a melting point (Tm 2 ) higher than Tm 1 by 20 ° C. or higher. Is a heat-bonding fiber.
【０００８】本発明のポリエステルエーテルとは、ハー
ドセグメントとソフトセグメントがブロック共重合され
たもので、ハードセグメントがポリエチレンテレフタレ
ート（ＰＥＴ）ポリブチレンテレフタレート（ＰＢ
Ｔ）、ポリエチレンナフタレート（ＰＥＮ）、ポリシク
ロヘキシレンジメチルテレフタレート（ＰＣＴ）などが
例示できる。ソフトセグメントとしてはポリテトラメチ
レングリコール（ＰＴＭＧ）、ポリヘキサメチレングリ
コール（ＰＨＭＧ）、ポリプロピレングリコール（ＰＰ
Ｇ）などが例示できる。特に好ましい組合せとしては、
ポリブチレンテレフタレートとポリテトラメチレングリ
コール、ポリエチレンナフタレートとポリテトラメチン
グリコールなどが例示できる。The polyester ether of the present invention is a block copolymer of a hard segment and a soft segment, wherein the hard segment is polyethylene terephthalate (PET) polybutylene terephthalate (PB).
T), polyethylene naphthalate (PEN), polycyclohexylene dimethyl terephthalate (PCT), etc. can be illustrated. As the soft segment, polytetramethylene glycol (PTMG), polyhexamethylene glycol (PHMG), polypropylene glycol (PP
G) etc. can be illustrated. A particularly preferred combination is
Examples include polybutylene terephthalate and polytetramethylene glycol, and polyethylene naphthalate and polytetramethine glycol.
【０００９】ソフトセグメントはポリテトラメチングリ
コールの場合、好ましい分子量は１０００〜３０００
（重量平均分子量ＭＷ）であるがハードセグメントの組
成とくり返し単位数で特に最適な組合せが存在する。こ
のような組合せのときＴβは−４０℃以下、特に好まし
くは、−５０℃である。Ｔαｃｒは５０℃以上特に好ま
しくは６０℃以上である。好ましいソフトセグメントと
ハードセグメントの組合せで始めてＴαｃｒとＴβを同
時に満足する。Ｔβが−４０℃以上では回復性が劣り、
Ｔαｃｒが５０℃未満では塑性変形が大きく同時に満足
するものが最適な組合せであり、このとき始めて７０℃
での伸長付与後の回復性が向上する。When the soft segment is polytetramethine glycol, the preferred molecular weight is 1000 to 3000.
Although it is (weight average molecular weight MW), there is a particularly optimal combination of the composition of the hard segment and the number of repeating units. In the case of such a combination, Tβ is −40 ° C. or lower, particularly preferably −50 ° C. Tαcr is 50 ° C. or higher, particularly preferably 60 ° C. or higher. Tαcr and Tβ are satisfied at the same time by starting with a preferable combination of the soft segment and the hard segment. When Tβ is -40 ° C or higher, the recoverability is poor,
If Tαcr is less than 50 ° C, the plastic deformation is large and the one that satisfies both at the same time is the optimum combination.
The recoverability after elongation is improved.
【００１０】本発明のポリエステルエーテルの融点は１
６０℃以上２２０℃以下である。１６０℃未満のもの
は、耐熱性が低くなり、更には、長時間の熱安定性が低
下しやすくなるので好ましくない。融点（Ｔｍ1 ）が２
２０℃を越えると硬クタ成形時温度が少なくとも（Ｔｍ
1 ＋１０℃）必要とするため、ソフトセグメントの分解
劣化と母材ポリエステルのモジュラス低下が大きくな
り、耐熱耐ヘタリ性が低下するもので好ましくない。本
発明の好ましいＴｍ1 の範囲は１７０℃〜２１０℃であ
る。特に好ましくは１７５℃〜１９５℃である。この場
合ポリエチレンテレフタレートを母材としたときにもモ
ジュラス低下が著しくなりにくいので耐熱耐ヘタリ性も
良好なものとなる。The melting point of the polyester ether of the present invention is 1
The temperature is 60 ° C or higher and 220 ° C or lower. If the temperature is lower than 160 ° C, the heat resistance tends to be low, and further, the thermal stability for a long time tends to be low, which is not preferable. Melting point (Tm 1 ) is 2
If the temperature exceeds 20 ° C, the temperature at the time of forming the hard kneader will be at least (Tm
(1 + 10 ° C.), the decomposition and deterioration of the soft segment and the decrease in the modulus of the base material polyester become large, and the heat and settling resistance decrease, which is not preferable. The preferred Tm 1 range of the present invention is 170 ° C to 210 ° C. Particularly preferably, it is 175 ° C to 195 ° C. In this case, even when polyethylene terephthalate is used as the base material, the modulus is unlikely to be significantly reduced, so that the heat and settling resistance is also good.
【００１１】本発明繊維はシースコアである。シースコ
アとする理由は、母材と接する点で全て接点を形成し、
母材にかかる力を分散し接点が大きな力を変形で吸収し
て母材のへたりを防止すると共に回復性を向上できるた
めでもある。シースコアでない場合、接点形成が少なく
なりネットワーク構造が粗となるため力の分散が悪くな
り、耐ヘタリ性が劣る。The fiber of the present invention is sheath core. The reason for setting the score is that all contact points are formed at the point of contact with the base material,
This is also because the force applied to the base material is dispersed and the contact absorbs a large force by deformation to prevent the base material from setting and improve the recoverability. When the score is not used, the contact formation is reduced and the network structure becomes rough, resulting in poor force distribution and poor settling resistance.
【００１２】本発明のコア成分は非エストマーポリエス
テルである。エラストマのみでは寸法安定性が劣り巻縮
付与や開織時のＷｅｂ成形でゴム弾性の為マイグレード
しないなどの問題を生じるので非エラストマーとしてい
る。コア成分の非エラストマーポリエステルのＴｍ2 は
コア成分のＴｍ1 より２０℃以上高いものが好ましい。
２０℃を下廻ると熱成形時に結晶融解温度を越えるので
繊維化時の配向性が消失し、耐ヘタリ性が低下する。好
ましくはＴｍ1 ＋２５℃以上、より好ましくはＴｍ1 ＋
３０℃以上である。このようなポリマーはポリエステル
なら特に限定されないが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などのＴｍ1 ＋１２０℃以
下のものが繊維を溶融紡糸する際エラストマーの劣化を
促進しない条件で紡糸できるので好ましい。又、結晶性
の良好なものが好ましくポリエテチレンイソフタレート
などは使用可能だが好ましくない。The core component of the present invention is a non-estomer polyester. Elastomer alone is inferior in dimensional stability and causes problems such as crimping and web-forming at the time of weaving, which causes rubber elasticity to prevent grading. The Tm 2 of the non-elastomer polyester as the core component is preferably higher than the Tm 1 of the core component by 20 ° C. or more.
If the temperature is lower than 20 ° C., the crystal melting temperature is exceeded during thermoforming, so that the orientation during fiberization is lost and the settling resistance is reduced. Preferably Tm 1 + 25 ° C. or higher, more preferably Tm 1 +
It is 30 ° C or higher. Such a polymer is not particularly limited as long as it is polyester, but polyethylene terephthalate,
Polybutylene terephthalate or the like having a Tm 1 of + 120 ° C. or less is preferable because it can be spun under conditions that do not promote deterioration of the elastomer during melt spinning of the fiber. Further, those having good crystallinity are preferable, and polyethylene ethene isophthalate and the like can be used, but they are not preferable.
【００１３】本発明繊維のシース／コア比は、１０／９
０〜９０／１０が好ましい。シースが１０℃以下では、
接点形成が不充分となり、応力集中によるヘタリの促進
が生じやすくなる。他方、９０％以上（シース）では、
前述のごとく熱接着繊維の寸法安定性が低下して加工時
トラブルを生じやすくなる。特に好ましくは３０／７０
〜６０／４０である。コアは、扁心していても２成分で
形成されていてもよい。このような場合立体巻縮を生じ
てより崇高となるので好ましい。又中空となっている場
合崇高かつ曲げ剛性が向上するので好ましい。本発明繊
維の巻縮形態は機械巻縮でも立体巻縮でもよい。カード
開繊など混繊工程でウエブ中に均一にマイグレードし、
ウエブ形成できればよい。The sheath / core ratio of the fiber of the present invention is 10/9.
0 to 90/10 is preferable. When the sheath is below 10 ℃,
The contact formation becomes insufficient, and the settling easily occurs due to stress concentration. On the other hand, at 90% or more (sheath),
As described above, the dimensional stability of the heat-bonded fiber is lowered, and a trouble is likely to occur during processing. Particularly preferably 30/70
~ 60/40. The core may be concentric or may be formed of two components. In such a case, a three-dimensional crimp is generated and the height becomes higher, which is preferable. In addition, it is preferable that it is hollow because it is sublime and the bending rigidity is improved. The crimped form of the fiber of the present invention may be mechanical crimp or three-dimensional crimp. In the mixed fiber process such as card opening, my grade is uniformly applied in the web,
It only needs to be able to form a web.
【００１４】本発明繊維の熱収縮率は低い方がウエブ中
に分散した接着繊維が縮みにくいので接点を均一に形成
できるため好ましい。収縮率が高いと層間剥離を生じや
すくなるので好ましくない。好ましい乾熱収縮率（１３
０℃）では２０％以下特に好ましくは１５％以下であ
る。又、本発明繊維の初期引張抵抗度（ＩＳ）は高い方
が開繊工程での伸長荷重による変形が少ないため収縮率
が高くならない。よって層間剥離の発生が少なくなる。
又、均一な接点形成ができるので好ましい。特に好まし
くは１５ｇ／ｄ以上である。It is preferable that the heat shrinkage rate of the fiber of the present invention is low because the adhesive fiber dispersed in the web is less likely to shrink and a contact can be formed uniformly. A high shrinkage ratio is not preferable because delamination is likely to occur. Preferred dry heat shrinkage (13
At 0 ° C., it is 20% or less, particularly preferably 15% or less. Further, the higher the initial tensile resistance (IS) of the fiber of the present invention, the less the deformation due to the extension load in the fiber-opening step and the higher the shrinkage rate. Therefore, delamination is less likely to occur.
Further, it is preferable because a uniform contact can be formed. It is particularly preferably 15 g / d or more.
【００１５】単糸デニールは混繊、開繊工程で母材とな
る分散可能な所望のデニールのものであれば特に限定さ
れない。例えば母材が６デニール〜１５デニールの場合
３デニール以上とすると均一分散できるので好ましい。
なお、本発明繊維構成するポリエステルエーテルブロッ
ク共重合体には通常のポリエステルと同じく、艶消剤、
顔料、酸化防止剤、紫外線吸収剤、難燃剤等（所望に応
じて）を含有してもよい。The single yarn denier is not particularly limited as long as it is a desired dispersible denier which is a base material in the mixing and opening steps. For example, when the base material has a denier of 6 to 15 denier, a denier of 3 denier or more is preferable because uniform dispersion can be achieved.
Incidentally, in the polyester ether block copolymer constituting the fiber of the present invention, as in the case of ordinary polyester, a matting agent,
It may contain a pigment, an antioxidant, an ultraviolet absorber, a flame retardant, etc. (if desired).
【００１６】かかる本発明の繊維は、従来から公知の複
合紡糸装置を用いて紡糸することができる。紡糸温度は
シース成分は１８０℃〜２７０℃コア成分は２５０℃〜
２９５℃で溶融し、好ましくは複合時同一温度に設定す
る。吐出された糸等は生産性の面から５００ｍ／分以上
の紡速で引取るのが好ましい。Ｔｍ1 ≦１８０℃では融
着が発生しないようノズル〜集束点間が６ｍ以上とする
のが好ましい。The fiber of the present invention can be spun by using a conventionally known composite spinning device. The spinning temperature is 180 ° C to 270 ° C for the sheath component and 250 ° C for the core component.
It melts at 295 ° C., and is preferably set to the same temperature during compounding. From the viewpoint of productivity, it is preferable that the discharged yarn or the like is taken up at a spinning speed of 500 m / min or more. At Tm 1 ≦ 180 ° C., the distance between the nozzle and the focusing point is preferably 6 m or more so that fusion does not occur.
【００１７】延伸は融着しない温度でかつコア成分のガ
ラス軽度点以上の温度で（例えば７０℃の温浴中）行
い、必要に応じて延伸温度以上に融着しない温度で熱処
理（定長、伸長、弛緩）を行い、フィラメントとして巻
取るか、巻縮を付与して切断し、ステープルとする。延
伸倍率は１．０５倍〜０．９５倍で行うと収縮率の低下
と同時にＩｓ保持性が良くなるので特に好ましい。本発
明繊維は、フィラメントとしても用いることができるが
クッション用途に母材の接着繊維として用いるため、主
たる方法がカードウエブとして熱成形する工程で成形す
るのでステープルとするのが好ましい。カードウエブと
して用いるときには開繊性の良好な油剤を延伸后付与す
るのが好ましい。更にはシース成分値熱溶融させるため
耐熱性油剤であることが特に好ましい。Stretching is carried out at a temperature at which fusion does not occur and at a temperature above the light point of the glass of the core component (for example, in a hot bath at 70 ° C.), and if necessary, at a temperature at which fusion does not occur above the stretching temperature (constant length, elongation). , And relax it) and wind it as a filament, or crimp it and cut it to form a staple. When the stretching ratio is 1.05 to 0.95, the Is retention is improved at the same time as the shrinkage is reduced, which is particularly preferable. The fiber of the present invention can be used also as a filament, but since it is used as an adhesive fiber of a base material for cushioning purposes, it is preferably stapled because it is mainly formed in the step of thermoforming a card web. When used as a card web, it is preferable to apply an oil agent having good openability after stretching. Further, it is particularly preferable to use a heat-resistant oil agent because the sheath component is melted by heat.
【００１８】かくして得られたステープルを用いてポリ
エステルよりなる母材繊維と公知の方法で混繊開繊して
混合ウエブを形成し、所望の目付けに積層し、圧縮熱成
形しけクッション材を得る。母材繊維と本発明繊維との
混合比率は１０％重量比以上とすることで接点形成数が
多くなるので好ましい。熱形成温度はＴｍ1 ＋５℃以上
３０℃以下とすることで接点形成が容易となり、かつ、
エラストマーの分解を抑制できるので好ましい。Using the staples thus obtained, the fibers are mixed and opened with a base material fiber made of polyester by a known method to form a mixed web, which is laminated to a desired basis weight to obtain a compression thermoforming cushion material. .. It is preferable that the mixing ratio of the matrix fiber and the fiber of the present invention is 10% by weight or more because the number of contact points is increased. The heat formation temperature is Tm 1 + 5 ° C. or higher and 30 ° C. or lower to facilitate contact formation, and
It is preferable because decomposition of the elastomer can be suppressed.
【００１９】なお、本発明で定義するＴｍ1 、Ｔｍ2 及
びＴβ、Ｔαｃｒは以下の方法で測定したものである。 融 点（Ｔｍ1 、Ｔｍ2 ） 島津製作所製ＴＡ５０，ＤＳＣ５０型未着走査型熱量計
を使用し、昇温速度２０℃／分 で測定し、融解ピーク
温度を求めた。 Ｔβ、Ｔαｃｒ 東洋ボルドウイン社製バイブロンＤＤＶII型を使用し、
１１０ＨＺ昇温速度１℃／分で測定し、（Ｔａｎδ）の
低温ピーク温度（Ｔβ）と高温（Ｔβ以上の温度）での
立上り温度（Ｔαｃｒ）を測定した。なお、Ｔαｃｒは
ゴム合繊Ｔａｎδの最低プロット点と最高プロット点の
中間点をベースラインとして立上り後の同様のベースラ
インとの交点の温度として求めた。（尚虚数弾性率Ｍ″
と弾性率の実数部分Ｍ′の比Ｍ″／Ｍ′＝Ｔａｎδと定
義する。）The Tm 1 , Tm 2 , Tβ and Tαcr defined in the present invention are measured by the following method. Melting point (Tm 1 , Tm 2 ) A melting peak temperature was determined by using a TA50, DSC50 non-contact scanning calorimeter manufactured by Shimadzu Corporation at a heating rate of 20 ° C./min. Tβ, Tαcr Using Toyo Bordwin Vibron DDVII type,
The temperature was increased at 110 HZ at a rate of 1 ° C./minute, and the low temperature peak temperature (Tβ) of (Tanδ) and the rising temperature (Tαcr) at high temperature (temperature above Tβ) were measured. In addition, Tαcr was determined as a temperature at an intersection with a similar baseline after rising using a midpoint between the lowest plot point and the highest plot point of the rubber synthetic fiber Tan δ as a baseline. (Note that the imaginary modulus M ″
And the real part M ′ of the elastic modulus is defined as M ″ / M ′ = Tanδ.)
【００２０】[0020]
【実施例】以下に実施例で本発明を具体的に詳述する。The present invention will be described in detail below with reference to Examples.
【００２１】実施例および比較例 ジメチルテレフタレート又はジメチルナフタレートとテ
トラメチレングリコール及びポリテトラメチレングリコ
ールを少量の触媒と抗酸化剤と共に仕込み公知の方法で
エステル交換反応後昇温減圧しつつ、重縮合せしめ、ポ
リエステルエーテル共重合エラストマーを生成した。生
成したポリエステルエーテル共重合エラストマーをペレ
ット化し、４０℃にて４８時間真空乾燥したものをシー
ス成分として用いた。シース成分として生成したポリエ
ステルエーテル共重合エラストマーの処法と特性を表１
〜３に示す。Examples and Comparative Examples Dimethyl terephthalate or dimethyl naphthalate and tetramethylene glycol and polytetramethylene glycol were charged together with a small amount of a catalyst and an antioxidant, and after a transesterification reaction by a known method, polycondensation was performed while heating and reducing pressure. , A polyester ether copolymer elastomer was produced. The polyester ether copolymer elastomer thus produced was pelletized and vacuum dried at 40 ° C. for 48 hours, and used as a sheath component. Table 1 shows the treatment methods and properties of the polyester ether copolymer elastomer produced as the sheath component.
~ 3.
【００２２】シース成分は２２０℃（Ｔｍ1 ≧２２０℃
のものは２４０℃）で溶融し、３ｇ／分の吐出量で、コ
ア成分としてＴｍ2 ２３０℃ポリブチレンテレフタレー
トを溶融温度２６０℃にて吐出量３ｇ／分でそれぞれを
４ホールの複合紡糸ノズルへ供給し、ノズル温度２６０
℃にてシースコア糸を紡出せしめ、引取り速度７００ｍ
／分にてシースコア未延伸糸を得た。コア成分にポリエ
テチレンテレフタレートを用いた場合ノズル温度溶融温
度２８５℃でそれ以外は同一条件でそれぞれ未延伸糸を
得た。得られた未延伸糸を６０℃温浴中で切断倍率の８
０％の延伸倍率で延伸后引続き乾熱７０℃オーブン中で
定長熱処理后、巻取り得られた延伸糸を２万デニールに
合糸し、仕上油剤を付与后クリンパーにて機械巻縮を付
与して６４ｍｍに切断して得られたステープルの特性を
表１〜３に示す。The sheath component is 220 ° C. (Tm 1 ≧ 220 ° C.
Melted at 240 ° C.) with a discharge rate of 3 g / min, and Tm 2 230 ° C. polybutylene terephthalate as a core component at a melting temperature of 260 ° C. and a discharge rate of 3 g / min, each into a 4-hole composite spinning nozzle. Supply, nozzle temperature 260
Spin the sheath core yarn at ℃, take-up speed 700m
An unstretched yarn of sheath core was obtained at 1 / min. When polyethylene terephthalate was used as the core component, an undrawn yarn was obtained under the same conditions except that the nozzle temperature was a melting temperature of 285 ° C. The unstretched yarn thus obtained was cut at a cutting ratio of 8 in a warm bath at 60 ° C.
After drawing at a draw ratio of 0%, it is continuously heat treated in a dry heat 70 ° C. oven for a fixed length, and then the drawn yarn is wound into 20,000 denier, and a finishing oil is added, followed by mechanical crimping with a crimper. Table 1 to 3 show the characteristics of the staples obtained by cutting into 64 mm.
【００２３】次に１３デニールの中空断面立体巻縮を有
するポリエチレンデレフタレート繊維を母材として得ら
れた熱接着繊維を３０％混繊とカードで開繊后積層して
目付け１，５００ｇ／ｍ2 のウエブとなし、厚み５ｃｍ
まで圧縮して１８０℃〜２００℃の熱風で５分間熱形成
后冷却してクッション材を得た。結果を表１に示す。
（なおクッション材の耐熱耐ヘタリ性は、１５ｃｍ×１
５ｃｍにクッション材を切断し、厚み方向に５０％に圧
縮して７０℃乾熱中２２時間保持後冷却して圧縮、歪を
除き、１日放置后の厚み（ｌｉ）と処理前の元の厚み
（ｌｏ）のとの比（（ｌｉ／ｌｏ）×１００）で求め
た。クッション性は、１０人のパネラーに手で押したと
きの風合をランクづけで、良好◎ 良○ やや不良△
不良×として評価５０％以上のものを示す。Next, a heat-bonding fiber obtained by using polyethylene derephthalate fiber having a hollow cross-section three-dimensional crimp of 13 denier as a base material was mixed with 30% fiber and was spread with a card and laminated to have a basis weight of 1,500 g / m 2. Without web, thickness 5 cm
To 80 ° C. to 200 ° C. for 5 minutes and then cooled to obtain a cushion material. The results are shown in Table 1.
(Note that the cushioning material has a heat and fatigue resistance of 15 cm x 1
Cut the cushion material to 5 cm, compress it to 50% in the thickness direction, hold it in dry heat at 70 ° C. for 22 hours, then cool and compress to remove distortion, and leave it for one day (li) and the original thickness before treatment. It was determined by the ratio of (lo) to ((li / lo) × 100). Cushioning property is rated as good when pressed by 10 panelists by hand, and good ◎ good ○ somewhat bad △
A defect of 50% or more is shown as "poor".
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【表２】 [Table 2]
【００２６】[0026]
【表３】 [Table 3]
【００２７】以上の結果から明らかなように本発明の熱
接着繊維は、耐熱耐ヘタリ性が良好であるが、本発明を
外れるものは、耐熱耐ヘタリ性が劣る。As is clear from the above results, the heat-bonded fibers of the present invention have good heat-resistant settling resistance, but those that deviate from the present invention have poor heat-settling resistance.
【００２８】本発明例実験ＮＤテストピースのものを
メタノール分解し、ろ過及び蒸留して、エチレングリコ
ール、ブチレングリコール、ポリテトラメチレングリコ
ール、ジメチルテレクタレートを９０％回収できた。こ
のことからポリエステル系母材と共に用いることで完全
リサイクルも可能なことが明らかである。Inventive Example Experiment The ND test piece was decomposed with methanol, filtered and distilled to recover 90% of ethylene glycol, butylene glycol, polytetramethylene glycol, and dimethyl terephthalate. From this, it is clear that complete recycling is possible by using the polyester base material together.
【００２９】[0029]
【発明の効果】本発明の熱接着繊維は、ポリエステル立
体巻縮糸を母材として熱成形したクッション材は特に好
適であり、嵩高で耐熱耐ヘタリ性がクッション性が特に
優れており、カコクな条件にさらされる車両用クッショ
ンに適しており、加えて通気性、透水性、低周波吸収性
などの良さから快適なクッション材に適用できる。加え
て、リサイクルが可能であることから、公害、環境問題
を有するポリウレタンに代替できるクッション材用とし
て特に有用である。もちろん、ペット、家具のクッショ
ン材用接着繊維としても有用であり、他のファイバーフ
ィル用途として伸縮性芯地などにも有用である。The heat-adhesive fiber of the present invention is particularly suitable as a cushion material formed by thermoforming polyester three-dimensional crimped yarn as a base material, which is bulky and has excellent heat-resistant settling resistance and excellent cushioning property, and is It is suitable as a cushion for vehicles exposed to conditions, and can be applied to a comfortable cushion material because of its good breathability, water permeability, and low frequency absorption. In addition, since it is recyclable, it is particularly useful as a cushioning material that can substitute for polyurethane, which has pollution and environmental problems. Of course, it is also useful as an adhesive fiber for a cushion material for pets and furniture, and is also useful as a stretchable interlining material for other fiber fill applications.
Claims (1)
シース成分は、融点（Ｔｍ1 ）が１６０℃〜２２０℃、
Ｔａｎδのβ分散ピーク温度（Ｔβ）が−４０℃以下、
Ｔａｎδのα分散立上がり温度（Ｔαｃｒ）が５０℃以
上のポリエステルエーテルエラストマーよりなり、コア
成分は、融点（Ｔｍ2 ）がＴｍ1 より２０℃以上高い値
を示す非エラストマーポリエステルよりなることを特徴
とする熱接着繊維。1. A sheath-core type two-component fiber,
The sheath component has a melting point (Tm 1 ) of 160 ° C to 220 ° C,
The β dispersion peak temperature (Tβ) of Tan δ is −40 ° C. or lower,
It is characterized by comprising a polyester ether elastomer having a Tan δ α dispersion rising temperature (Tαcr) of 50 ° C. or higher, and a core component made of a non-elastomeric polyester having a melting point (Tm 2 ) higher than Tm 1 by 20 ° C. or more. Heat-bonded fiber.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4076040A JP2705440B2 (en) | 1992-02-26 | 1992-02-26 | Thermal bonding fiber |
| US07/907,543 US5298321A (en) | 1991-07-05 | 1992-07-02 | Recyclable vehicular cushioning material and seat |
| DE19924222127 DE4222127B4 (en) | 1991-07-05 | 1992-07-06 | Recyclable cushioning material for use in vehicles and vehicle seat |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4076040A JP2705440B2 (en) | 1992-02-26 | 1992-02-26 | Thermal bonding fiber |
| JP7621792A JP3164169B2 (en) | 1992-02-27 | 1992-02-27 | Crimped fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05247724A true JPH05247724A (en) | 1993-09-24 |
| JP2705440B2 JP2705440B2 (en) | 1998-01-28 |
Family
ID=26417198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4076040A Expired - Fee Related JP2705440B2 (en) | 1991-07-05 | 1992-02-26 | Thermal bonding fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2705440B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145180A (en) * | 2002-10-28 | 2004-05-20 | Teijin Fibers Ltd | Sound_absorbing structure |
| WO2008041384A1 (en) | 2006-10-03 | 2008-04-10 | Daiwabo Co., Ltd. | Crimping composite fiber and fibrous mass comprising the same |
| WO2011007875A1 (en) | 2009-07-17 | 2011-01-20 | ダイワボウホールディングス株式会社 | Crimped composite fiber, and fibrous mass and textile product using the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112723A (en) * | 1986-10-28 | 1988-05-17 | Nippon Ester Co Ltd | Polyester based binder fiber |
| JPH03220316A (en) * | 1990-01-19 | 1991-09-27 | Toray Ind Inc | Conjugate fiber |
| JPH03269125A (en) * | 1990-03-16 | 1991-11-29 | Unitika Ltd | Blended spun yarn |
-
1992
- 1992-02-26 JP JP4076040A patent/JP2705440B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112723A (en) * | 1986-10-28 | 1988-05-17 | Nippon Ester Co Ltd | Polyester based binder fiber |
| JPH03220316A (en) * | 1990-01-19 | 1991-09-27 | Toray Ind Inc | Conjugate fiber |
| JPH03269125A (en) * | 1990-03-16 | 1991-11-29 | Unitika Ltd | Blended spun yarn |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145180A (en) * | 2002-10-28 | 2004-05-20 | Teijin Fibers Ltd | Sound_absorbing structure |
| WO2008041384A1 (en) | 2006-10-03 | 2008-04-10 | Daiwabo Co., Ltd. | Crimping composite fiber and fibrous mass comprising the same |
| US8268444B2 (en) | 2006-10-03 | 2012-09-18 | Daiwabo Holdings Co., Ltd. | Crimping composite fiber and fibrous mass comprising the same |
| WO2011007875A1 (en) | 2009-07-17 | 2011-01-20 | ダイワボウホールディングス株式会社 | Crimped composite fiber, and fibrous mass and textile product using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2705440B2 (en) | 1998-01-28 |
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