JPH0284512A - Polyester-based conjugated fiber - Google Patents
Polyester-based conjugated fiberInfo
- Publication number
- JPH0284512A JPH0284512A JP23588888A JP23588888A JPH0284512A JP H0284512 A JPH0284512 A JP H0284512A JP 23588888 A JP23588888 A JP 23588888A JP 23588888 A JP23588888 A JP 23588888A JP H0284512 A JPH0284512 A JP H0284512A
- Authority
- JP
- Japan
- Prior art keywords
- copolyester
- mainly composed
- polyester
- copolymerized
- ethylene terephthalate
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 24
- 229920000728 polyester Polymers 0.000 title claims description 26
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- MMINFSMURORWKH-UHFFFAOYSA-N 3,6-dioxabicyclo[6.2.2]dodeca-1(10),8,11-triene-2,7-dione Chemical group O=C1OCCOC(=O)C2=CC=C1C=C2 MMINFSMURORWKH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001634 Copolyester Polymers 0.000 claims abstract description 7
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 15
- 238000007334 copolymerization reaction Methods 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical group OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N anhydrous diethylene glycol Natural products OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 abstract description 6
- 238000009987 spinning Methods 0.000 abstract description 5
- 150000002148 esters Chemical class 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000009960 carding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
Landscapes
- Multicomponent Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、潜在巻縮能を備え１巻縮発現後の伸縮性１
弾性回復性および軸強度にすぐれたサイドバイサイド型
のポリエステル系複合繊維に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention has a latent curling ability and a stretchability of 1
This invention relates to a side-by-side type polyester composite fiber with excellent elastic recovery and axial strength.
（従来の技術）
衣料、特にスポーツ衣料用の編織物および上記衣料の中
入綿用不織布などに好適な繊維として潜在巻縮能を備え
たポリエステル系複合繊維が知られている。例えば、特
開昭６２−７８２１４号公報には、エチレンテレフタレ
ート単位を主体とし、金属塩スルホネート基を有する構
成単位３〜６モル％を共重合成分とする共重合ポリエス
テルＡと、この共重合ポリエステルＡとは共重合成分を
異にする共重合ポリエステルまたはポリエチレンテレフ
タレートとが偏心的に接合されたポリエステル複合繊維
が開示されている。(Prior Art) Polyester composite fibers with latent crimp ability are known as fibers suitable for clothing, especially knitted fabrics for sports clothing, and nonwoven fabrics for padding in the above-mentioned clothing. For example, JP-A-62-78214 discloses a copolymerized polyester A mainly composed of ethylene terephthalate units and 3 to 6 mol% of structural units having metal salt sulfonate groups, and a copolymerized polyester A A polyester composite fiber in which a copolyester or polyethylene terephthalate having a different copolymerization component is eccentrically joined is disclosed.
（発明が解決しようとする課題）
上記のポリエステル繊維は、機械巻縮を付与したのち熱
処理を行なって潜在巻縮を発現させることにより、優れ
た伸縮性および弾性回復性を発揮するが、高収縮成分と
しての共重合ポリエステルＡに含まれる共重合成分が金
属塩スルホネート基を有するもののみであり、その含有
量が３〜６モル％で、比較的多いので、溶融粘度が上昇
して繊維の軸強度が低くなり、その共重合割合を少なく
すると潜在巻縮能が低下するという問題があった。(Problem to be solved by the invention) The above polyester fiber exhibits excellent stretchability and elastic recovery by applying mechanical crimp and then heat treatment to develop latent crimp. The copolymerized component contained in the copolymerized polyester A as a component is only one having a metal salt sulfonate group, and the content is 3 to 6 mol%, which is relatively large, so the melt viscosity increases and the axis of the fiber increases. There is a problem that the strength becomes low, and when the copolymerization ratio is reduced, the potential crimp ability decreases.
この発明は、潜在巻縮能が良好に保持され、乾強度が改
善されたポリエステル系複合繊維を提供するものである
。The present invention provides a polyester composite fiber that retains its latent crimp ability well and has improved dry strength.
（課題を解決するための手段）
上記の課題を解決するため、この発明のポリエステル系
複合繊維においては、エチレンテレフタレート単位を主
体とし、金属塩スルホネー１〜基を有する構成単位１〜
３モル％好ましくは１．５〜２．７モル％およびイソフ
タル酸２〜１０モル％好ましくは３〜８モル％を共重合
成分とする共重合ポリエステルＡと、エチレンテレフタ
レート−単位を主体とし、上記共重合ポリエステルＡよ
りも低収縮性の共重合ポリエステルＢまたはポリエチレ
ンテレフタレートとを偏心的に接合する。(Means for Solving the Problems) In order to solve the above problems, the polyester composite fiber of the present invention has 1 to 1 structural units mainly composed of ethylene terephthalate units and having 1 to 1 to 1 metal salt sulfone groups.
A copolymerized polyester A containing 3 mol%, preferably 1.5 to 2.7 mol%, and 2 to 10 mol% of isophthalic acid, preferably 3 to 8 mol%, and ethylene terephthalate units as a main component, and the above-mentioned Copolymerized polyester B or polyethylene terephthalate, which has a lower shrinkage than copolymerized polyester A, is eccentrically joined.
金属塩スルホネート基を有する構成単位としては、−数
式
で示される化合物（ただし、ＸはＮａ、に、Ｌｉ等）が
例示される。Examples of the structural unit having a metal salt sulfonate group include compounds represented by the formula - (where X is Na, Li, etc.).
（作用）
この発明の複合繊維において、その一方の高収縮成分を
構成する共重合ポリエステルＡは、共重合成分として金
属塩スルホネート基を有する構成単位を含有しているの
で、他方の低収縮成分のポリエチレンテレフタレートま
たは共重合ポリエステルＢに比べて紡糸延伸後の弾性回
復性に優れており、そのため複合繊維は、高収縮成分で
ある共重合ポリエステルＡの側を内側にして湾曲する。(Function) In the composite fiber of the present invention, the copolymerized polyester A constituting one of the high-shrinkage components contains a structural unit having a metal salt sulfonate group as a copolymerization component. Compared to polyethylene terephthalate or copolymerized polyester B, it has excellent elastic recovery properties after spinning and drawing, and therefore, the composite fiber is curved with the side of copolymerized polyester A, which is a high shrinkage component, facing inside.
また、この共重合ポリエステルＡは、上記の金属塩スル
ホネート基を有する構成単位のほかにイソフタル酸を共
重合成分として含有しているので、上記金属塩スルホネ
ート基を有する構成単位のみを含有する場合に比へて高
収縮成分としての熱収縮率が大きく、低収縮成分との熱
収縮率差が一層大きくなり、そのため潜在巻縮能が向上
し、かつ複合繊維としての乾強度が向上する。In addition, this copolymerized polyester A contains isophthalic acid as a copolymerization component in addition to the above-mentioned structural units having metal salt sulfonate groups. In comparison, the heat shrinkage rate as a high shrinkage component is large, and the difference in heat shrinkage rate with the low shrinkage component is even larger, so that the potential crimpability is improved and the dry strength as a composite fiber is improved.
ただし、共重合ポリエステル八における金属塩スルホネ
ート基を有する構成単位の共重合割合が１モル％未満の
場合は、延伸後の弾性回復が不足して潜在巻縮能が不十
分になり、反対に３％を超えると複合繊維の乾強度が不
足する。また、上記共重合ポリエステル八におけるイソ
フタル酸の共重合量が２％未満の場合は、ポリエチレン
テレフタレートまたは共重合ポリエステルＢとの熱収縮
率差が不足し、潜在巻縮能が不十分になり、反対に１０
％を超えると延伸後の弾性回復が不足して潜在巻縮能が
不十分になる。However, if the copolymerization ratio of structural units having metal salt sulfonate groups in the copolymerized polyester 8 is less than 1 mol%, the elastic recovery after stretching will be insufficient, resulting in insufficient latent crimp ability; %, the dry strength of the composite fiber will be insufficient. In addition, if the amount of copolymerized isophthalic acid in the above copolymerized polyester 8 is less than 2%, the difference in heat shrinkage rate with polyethylene terephthalate or copolymerized polyester B will be insufficient, and the latent crimp ability will be insufficient. 10 to
If it exceeds %, elastic recovery after stretching will be insufficient and the potential curling ability will be insufficient.
（実施例）
高収縮成分としての共重合ポリエステルＡにおける共重
合成分（５−ソジウムスルホイソフタル酸ジエチレング
リコールエステルおよびイソフタル酸）の割合を種々に
設定し、低収縮成分としてポリエチレンテレフタレート
を使用し、紡糸温度２９０℃、単孔吐出量１ｇ／分、紡
糸速度１６００ ｍ７分で紡出し、サイドバイサイト型
の４種類の未延伸糸を得、これら４種類の未延伸糸をそ
れぞれ熱処理温度１４０℃で１．４倍に延伸し、次いで
スタッフィングボックスで機械巻縮を付与し、これを切
断して繊度２．５デニール、繊維長５１ｍｍの複合繊維
ステーブルを得た。(Example) The ratio of copolymerized components (5-sodium sulfoisophthalate diethylene glycol ester and isophthalic acid) in copolymerized polyester A as a high shrinkage component was set variously, polyethylene terephthalate was used as a low shrinkage component, and spinning was performed. Spinning was carried out at a temperature of 290°C, a single-hole discharge rate of 1 g/min, and a spinning speed of 1600 m/7 min to obtain four types of side-by-site type undrawn yarns. The fibers were stretched .4 times, mechanically crimped using a stuffing box, and cut to obtain a composite fiber stable having a fineness of 2.5 denier and a fiber length of 51 mm.
次いで、上記４種類の複合繊維ステープルをそれぞれ梳
綿機に仕掛けて目付量１００ｇ／ｒｒ？のカードウェブ
を作成し、これにニードルパンチ（針密度３８本／−）
を施こし、リラックス率１５％の四方拘束状態で１６０
℃、２分間の弛緩熱処理を行ない、上記複合繊維の潜在
巻縮を発現させた。Next, each of the above four types of composite fiber staples was placed in a carding machine and the basis weight was 100g/rr. Create a card web and needle punch it (needle density 38/-)
160 in a four-way restrained state with a relaxation rate of 15%.
A relaxation heat treatment was performed at ℃ for 2 minutes to develop latent crimp in the composite fiber.
上記４種類の複合繊維（実施例１，２および比較例１．
２）につき、機械巻縮付与後の原綿のクリンプ数（個／
２５．４ａｍ）、引張強度（ｇ／デニール）、および弛
緩熱処理後のクリンプ数（個／２５．４ｍｎ＋）、巻縮
率（％）を８１１定した。その結果および共重合ポリエ
ステルＡ中の共重合成分の割合を下記の表に示す。表中
、ＤＥＳは５ソジウムスルホイソフタル酸ジエチレング
リコールエステル（金属スルホネート基を有する構成単
位）を、ＩＰＡはイソフタル酸を、ＣＮはクリンプ数を
、ＤＴは引張強度（乾）を、ＣＩは巻縮率をそれぞれ示
す。The above four types of composite fibers (Examples 1 and 2 and Comparative Example 1.
Regarding 2), the number of crimps of raw cotton after mechanical crimping (pcs/
25.4 am), tensile strength (g/denier), number of crimps (pieces/25.4 m+) after relaxation heat treatment, and crimp ratio (%) were determined to be 811. The results and the proportion of copolymerized components in copolymerized polyester A are shown in the table below. In the table, DES is 5-sodium sulfoisophthalate diethylene glycol ester (constituent unit having a metal sulfonate group), IPA is isophthalic acid, CN is crimp number, DT is tensile strength (dry), and CI is crimp ratio. are shown respectively.
上記の表で明らかなように、この発明の実施例１および
実施例２は、原綿物性および熱処理後物性が良好である
が、５−ソジウムスルホイソフタル酸ジエレチングリコ
ールエステル（ＤＥＳ）を含まない比較例１は、熱処理
後のクリンプ数（ＣＮ）および巻縮率（ＣＩ）の双方が
小さく、またイソフタル酸（ＩＰＡ）を含まない比較例
２は、引張強度、すなわち乾強度が低く、繊維切れが生
じ易かった。As is clear from the above table, Examples 1 and 2 of the present invention have good raw cotton physical properties and physical properties after heat treatment, but do not contain 5-sodium sulfoisophthalate diethyl glycol ester (DES). Comparative Example 1 has a small crimp number (CN) and crimp ratio (CI) after heat treatment, and Comparative Example 2, which does not contain isophthalic acid (IPA), has a low tensile strength, that is, a dry strength, and is prone to fiber breakage. was likely to occur.
（発明の効果）
この発明は、熱収縮率に差のある２種のポリエステルか
らなるサイドバイサイド型の複合繊維において、その高
収縮成分の共重合ポリエステルＡの共重合成分として金
属塩スルホネート基を有する構成単位１〜３モル％およ
びイソフタル゛酸２〜１０モル％を用いるものであるか
ら、延伸後の弾性回復および熱収縮の双方が低収縮成分
よりも大きくて潜在巻縮能に優れており、しかもイソフ
タル酸を含まない場合に比べて乾強度が向上し、紡績、
編織その他の後加工が容易である。(Effects of the Invention) The present invention provides a side-by-side type composite fiber made of two types of polyesters having different heat shrinkage rates, in which a copolymerized polyester A, which is a high shrinkage component, has a metal salt sulfonate group as a copolymer component. Since it uses 1 to 3 mol% of units and 2 to 10 mol% of isophthalic acid, both the elastic recovery and heat shrinkage after stretching are greater than that of the low-shrinkage component, and the latent crimp ability is excellent. Dry strength is improved compared to the case without isophthalic acid, making it easier to spin,
Easy to knit, weave and other post-processing.
特許出願人 東洋紡績株式会社 代理人 弁理士 吉 １）了 司Patent applicant: Toyobo Co., Ltd. Agent: Patent Attorney Yoshi 1) Tsukasa Ryo
Claims (1)
スルホネート基を有する構成単位１〜３モル％およびイ
ソフタル酸２〜１０モル％を共重合成分とする共重合ポ
リエステルＡと、エチレンテレフタレート単位を主体と
し、上記共重合ポリエステルＡよりも低収縮性の共重合
ポリエステルＢまたはポリエチレンテレフタレートとが
偏心的に接合されていることを特徴とするポリエステル
系複合繊維。[Scope of Claims] [1] Copolymerized polyester A containing ethylene terephthalate units as a main component, 1 to 3 mol% of structural units having a metal salt sulfonate group, and 2 to 10 mol% of isophthalic acid as copolymerization components, and ethylene A polyester composite fiber mainly composed of terephthalate units, characterized in that copolyester B or polyethylene terephthalate, which has a lower shrinkage than the copolyester A, is eccentrically joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23588888A JPH0284512A (en) | 1988-09-20 | 1988-09-20 | Polyester-based conjugated fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23588888A JPH0284512A (en) | 1988-09-20 | 1988-09-20 | Polyester-based conjugated fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0284512A true JPH0284512A (en) | 1990-03-26 |
Family
ID=16992731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23588888A Pending JPH0284512A (en) | 1988-09-20 | 1988-09-20 | Polyester-based conjugated fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0284512A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163717A (en) * | 1984-09-05 | 1986-04-01 | Mitsubishi Rayon Co Ltd | Polyester latent crimp composite fiber |
| JPS61146808A (en) * | 1984-12-18 | 1986-07-04 | Teijin Ltd | Latent bulky multifilament and its production |
| JPS6278214A (en) * | 1985-09-26 | 1987-04-10 | Nippon Ester Co Ltd | Polyester conjugated yarn |
-
1988
- 1988-09-20 JP JP23588888A patent/JPH0284512A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163717A (en) * | 1984-09-05 | 1986-04-01 | Mitsubishi Rayon Co Ltd | Polyester latent crimp composite fiber |
| JPS61146808A (en) * | 1984-12-18 | 1986-07-04 | Teijin Ltd | Latent bulky multifilament and its production |
| JPS6278214A (en) * | 1985-09-26 | 1987-04-10 | Nippon Ester Co Ltd | Polyester conjugated yarn |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH045769B2 (en) | ||
| JPS63295712A (en) | Irregular cross-section heat-fused fiber | |
| JP2000328382A (en) | Elastic spun yarn | |
| JPH0284512A (en) | Polyester-based conjugated fiber | |
| JP2703294B2 (en) | Polyester conjugate fiber, nonwoven fabric containing the fiber, and method for producing the nonwoven fabric | |
| JP6591765B2 (en) | Latent crimped composite fiber | |
| JPH06101116A (en) | Composite fiber | |
| JPH0261111A (en) | Polyester-based conjugate fiber | |
| JP3736886B2 (en) | Spinned yarn made of fibers with latent crimping ability | |
| JP2656583B2 (en) | Polyester composite staple fiber for elastic non-woven fabric | |
| JP2655557B2 (en) | Polyester composite fiber | |
| JPH11323697A (en) | Stretchable polyester fabric and method for producing the same | |
| JP3759236B2 (en) | Spinned yarn containing latently crimped fibers | |
| JPH07150429A (en) | Spun yarn and woven fabric having stretchability | |
| JP2000328370A (en) | Polyester composite fiber and nonwoven fabric containing the fiber | |
| JPH09241937A (en) | Stretchable spun yarn | |
| JP2858971B2 (en) | Polyester composite fiber | |
| JP2822422B2 (en) | Easy-eluting high-shrink polyester yarn and method for producing the same | |
| JPH0813273A (en) | Conjugate crimped yarn | |
| JPH08170238A (en) | Composite crimped yarn | |
| JPH01169000A (en) | Conjugated polyester fiber for wet non-woven cloth | |
| JPS6156333B2 (en) | ||
| JPH02139414A (en) | Conjugate fiber, woven, knit or nonwoven fabric containing the same and production of nonwoven fabric | |
| JPH11152645A (en) | Woven and knitted fabric having excellent stretch recovery | |
| JPH06108343A (en) | Worsted woven fabric |