JPS627300B2 - - Google Patents
Info
- Publication number
- JPS627300B2 JPS627300B2 JP10117779A JP10117779A JPS627300B2 JP S627300 B2 JPS627300 B2 JP S627300B2 JP 10117779 A JP10117779 A JP 10117779A JP 10117779 A JP10117779 A JP 10117779A JP S627300 B2 JPS627300 B2 JP S627300B2
- Authority
- JP
- Japan
- Prior art keywords
- knitted fabric
- heat treatment
- yarn
- fibers
- spun yarn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000835 fiber Substances 0.000 claims description 42
- 239000004744 fabric Substances 0.000 claims description 33
- 229920000728 polyester Polymers 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 5
- 230000002269 spontaneous effect Effects 0.000 description 4
- 235000013351 cheese Nutrition 0.000 description 3
- 238000009940 knitting Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Knitting Of Fabric (AREA)
- Treatment Of Fiber Materials (AREA)
Description
本発明は、仕上加工時の取扱いが容易であり、
かつ風合がソフトで抗ピル性良好なポリエステル
系繊維編物に関するものである。
従来より特に単糸紡績糸を使用して編成した編
物は、糸の所有するトルク及び編物編成時に発生
するトルクに依り、編物の端部が丸まり或いは編
目が斜行して仕上加工時に大きい問題となつてい
る。ハーフトリコツトのような経編物或いは、筒
状の丸編物を切り開いて平面状にした場合、生機
の状態から編物の端部は丸く丸まり、その程度は
精練することにより更に助長される。従つて、そ
の后の例えばヒート・セツト等の工程を通す際に
は、端部に糊を付けて、その部分のみを平板にし
て、作業性の向上を計るような工夫とか、編物の
斜行を作業者が矯正しながらヒート・セツト工程
へ供給する等大きな手間を要するため作業性の低
下は著しい。
又ポリエステル系繊維の混率が多くなり、しか
も特にソフトな風合が望まれる場合には、複数の
ポリエステル系繊維を混紡してバルキー化を計る
とか繊度の小さい繊維を混ぜるとか種々の繁雑な
手段で工夫がなされて来た。
更に抗ピリングの対策としては、繊維製造時に
或いは、后加工の段階で、様々の工夫がなされて
いるが、いずれも他の性能を低下させるものが多
く、他の性能をも向上させるような抗ピル繊維
は、多くは見当らない。
本発明の目的は、仕上加工時の取り扱い性が容
易であり、しかもソフトな風合を有し、ピリング
の発生し難い、自発伸長性ポリエステル系繊維を
含有する編物に関するものである。
即ち、本発明は、撚係数が2.5以上の紡績糸を
単糸の状態で使用した編物であつて、温度180℃
の乾熱処理により、4%以上伸長し、且つ、該熱
処理による破断伸度の減少率が10%〜50%である
自発伸長性のポリエステル系繊維を糸全体の40〜
80重量%含有している紡績糸により編成されてい
ることを特徴とするポリエステル系繊維編物にあ
る。
但し、上記の撚係数は
α:撚係数
T:撚数(ターン/インチ)
Ne:線番手
で与えられる。
以下本発明を詳細に説明する。
本発明の編物は、撚係数2.5以上の紡績糸を用
いて編成したものである。
撚係数が2.5未満のものでは、編地の風合が不
良で満足出来るものが得られず、又、糸の構造が
ルーズでピリング発生の防止が出来ない。したが
つて、紡績糸を用いた編物では、2.5以上の撚係
数による糸が必要となる。
次に、該紡績糸は、自発伸長性ポリエステル系
繊維を糸全体の40〜80%含有するものである。こ
の自発伸長性ポリエステル繊維の混紡率が40%未
満では、生機に於いても、更に精練を実施すれば
更に強く編物の端部は丸まり充分に防止する効果
は得られない。又、この混紡率が80%を超えると
自発伸長する繊維が多くなる結果、腰のない風合
の編地となり好しくない。
上記の自発伸長性ポリエステル系繊維は、乾熱
温度180℃の熱処理により4%以上自発伸長し、
且つ該熱処理の前後における破断伸度の減少率が
10%〜50%であることが必要である。なお一般に
自発伸長性繊維の構造及び物性は熱処理温度に依
存することは勿論のこと、熱処理時間にも依存す
るため、上記の物性値は繊維構造が安定するのに
要する時間、即ち10〜30分間の処理を行つた后の
値である。
即ち、この自発伸長率は、180℃の熱処理によ
り4%以上あることが必要であつて、4%未満で
あると、自発伸長することにより撚トルクを減少
させると云う効果が得られない。
しかるに、上記の自発伸長性ポリエステル系繊
維は、例えば下記により得ることが出来る。
即ち、本発明に用いられる自発伸長性ポリエス
テル系繊維は、一般に潜在的に高収縮性能を有す
る繊維を弛緩熱処理を施し、少くとも20%の収縮
を行わしめることにより得られるが、例えば、複
屈折率Δn=0.02〜0.08であるポリエステル未延
伸繊維束を〔ガラス転移点+20℃〕以下の温度
で、下記の延伸倍率(D.R)にて延伸する。
0.04/Δn+0.7≦D.R≦0.04/Δn+1.1
次いで、100℃〜140℃の温度で弛緩熱処理する
ようにして得ることが出来る。上記の方法で得た
自発伸長性ポリエステル繊維は乾熱温度180℃の
熱処理によつて、4%以上の不可逆的伸長率を有
する。なお本発明において使用される自発伸長性
ポリエステル系繊維の製造は、上記方法に限定さ
れるものではない。
さらに、ここで得られた自発伸長性ポリエステ
ル系繊維は上記の熱処理によつてその破断伸度が
10〜50%低下するものである。第1表は、上記の
方法によつて得られた自発伸長性ポリエステル繊
維の1例を示めす。
The present invention is easy to handle during finishing processing,
The present invention also relates to a polyester fiber knitted fabric that has a soft feel and good anti-pilling properties. Conventionally, knitted fabrics knitted using single spun yarns have been known to have serious problems during finishing, such as curling of the ends of the knitted fabric or skewed stitches due to the torque possessed by the yarn and the torque generated during knitting. It's summery. When a warp knitted fabric such as a half-tricot knitted fabric or a cylindrical circular knitted fabric is cut into a flat shape, the edges of the knitted fabric are rounded from the gray state, and this degree of curling is further promoted by scouring. Therefore, when going through a subsequent process such as heat setting, there are measures to improve workability, such as adding glue to the ends and making only those parts flat, and making the knitting work skewed. The work efficiency is significantly reduced because it takes a lot of effort for the worker to straighten the material and feed it to the heat setting process. In addition, when the blending ratio of polyester fibers is high and a particularly soft texture is desired, various complicated methods such as blending multiple polyester fibers to create bulk or mixing fibers with small fineness may be used. Efforts have been made. Furthermore, various anti-pilling measures have been taken during fiber manufacturing or at the post-processing stage, but most of them degrade other properties, and there are no anti-pilling measures that can improve other properties as well. Not many pill fibers are found. An object of the present invention is to provide a knitted fabric containing spontaneously extensible polyester fibers that is easy to handle during finishing, has a soft feel, and is less likely to cause pilling. That is, the present invention is a knitted fabric using spun yarn with a twist coefficient of 2.5 or more in the state of a single yarn, which is heated at a temperature of 180°C.
Spontaneous extensibility polyester fibers elongated by 4% or more by dry heat treatment, and the reduction rate of elongation at break due to the heat treatment is 10% to 50%.
A polyester fiber knitted fabric characterized by being knitted with spun yarn containing 80% by weight. However, the above twist coefficient is α: Twist coefficient T: Number of twists (turns/inch) Ne: Given by wire number. The present invention will be explained in detail below. The knitted fabric of the present invention is knitted using spun yarn with a twist coefficient of 2.5 or more. If the twist coefficient is less than 2.5, the texture of the knitted fabric will be poor and a satisfactory product cannot be obtained, and the yarn structure will be loose and pilling cannot be prevented. Therefore, knitted fabrics using spun yarn require yarn with a twist coefficient of 2.5 or more. Next, the spun yarn contains 40 to 80% of the total amount of spontaneously extensible polyester fibers. If the blending ratio of the spontaneously extensible polyester fibers is less than 40%, even in the case of gray fabrics, further scouring will make the fabric stronger and the ends of the knitted fabric will not be sufficiently prevented from curling. Furthermore, if the blending ratio exceeds 80%, the amount of spontaneously elongated fibers will increase, resulting in a knitted fabric with a stiff texture, which is not preferable. The above spontaneously extensible polyester fiber can be spontaneously elongated by 4% or more by heat treatment at a dry heat temperature of 180°C,
Moreover, the rate of decrease in elongation at break before and after the heat treatment is
It is necessary to be between 10% and 50%. In general, the structure and physical properties of spontaneously extensible fibers depend not only on the heat treatment temperature but also on the heat treatment time, so the above physical property values are based on the time required for the fiber structure to stabilize, i.e. 10 to 30 minutes. This is the value after processing. That is, this spontaneous elongation rate must be 4% or more due to heat treatment at 180°C, and if it is less than 4%, the effect of reducing the twisting torque due to spontaneous elongation cannot be obtained. However, the above-mentioned spontaneously extensible polyester fiber can be obtained, for example, by the following method. That is, the spontaneously extensible polyester fibers used in the present invention are generally obtained by subjecting fibers with potentially high shrinkage performance to a relaxation heat treatment to cause at least 20% shrinkage. An undrawn polyester fiber bundle having a ratio Δn of 0.02 to 0.08 is drawn at a temperature below [glass transition point +20° C.] at the following draw ratio (DR). 0.04/Δn+0.7≦DR≦0.04/Δn+1.1 Next, it can be obtained by performing a relaxation heat treatment at a temperature of 100°C to 140°C. The spontaneously extensible polyester fiber obtained by the above method has an irreversible elongation rate of 4% or more when subjected to heat treatment at a dry heat temperature of 180°C. Note that the production of the spontaneously extensible polyester fiber used in the present invention is not limited to the above method. Furthermore, the spontaneously extensible polyester fiber obtained here has its breaking elongation reduced by the above heat treatment.
This is a 10-50% decrease. Table 1 shows an example of spontaneously extensible polyester fibers obtained by the above method.
【表】
以上、説明したように、本発明の編物は、撚係
数が2.5以上の紡績糸を単糸の状態で使用して、
編成した編物であるが、該紡績糸が温度180℃の
乾熱処理により4%以上伸長する自発伸長性ポリ
エステル系繊維を糸全体の20〜80重量%含有する
ことにより、熱処理によつて、自発伸長性ポリエ
ステル繊維を伸長させ、これにより紡績糸の持つ
撚トルクを減少させ得るものであるから、本発明
の編物の端部の丸く捲き上るのを、なくすことが
可能なものとすることが出来る。
なお混紡する相手の繊維は、普通ポリエステル
繊維でも、他のいかなる繊維でもさしつかえな
い。
更に、上記の混紡糸において、自発伸長したポ
リエステル系繊維によつて、紡績糸の構造はルー
ズとなる(即ち、編物を形成する紡績糸の構造が
ルーズとなり、該紡績糸内で、単繊維が運動し易
くなる)。従つて高収縮繊維とかコンジユゲート
繊維等を利用しなくても、ふくらみに富んだソフ
トな風合の編物を得ることが出来る。
更にこのようなルーズな構造になつても、該自
発伸長性ポリエステル系繊維の破断伸度の熱処理
により破断伸度の減少率を10〜50%とすることに
よりピリング特性を充分使用に耐え得る程度に向
上させることが出来たのである。
尚本発明に依り得られる編物は、紡績糸又は布
帛の状態で熱処理して達成されるのだが、この熱
処理条件としては、自発伸長性を発揮させる温度
が必要であつて、湿熱では100℃以上、乾熱では
150℃以上が必要である。更に好ましくは、湿熱
120℃以上、乾熱170℃以上の温度で実施するのが
よい。
熱処理を実施する工程としては、糸の形態を取
る工程、即ち、精紡工程のコツプや捲糸工程のコ
ーン、チーズ等の形態で行うのが、最も望ましい
が、編立ても行つた后、その編物をアイロン等に
より部分的に熱処理することも出来る。
以上のようにして得られる編物は、熱処理によ
り一旦自発伸長性ポリエステル系繊維を伸長さ
せ、撚トルクを解消してしまえば、布帛の構造は
安定し編物の端が丸く捲く現象は解消し、かつ風
合はソフトに保たれ抗ピン性は良好となる。
第2表は自発伸長性ポリエステル系繊維を含む
紡績糸をチーズ状で120℃蒸気で30分間熱処理を
実施した場合の糸を用いて天笠を編成し、仕上加
工に際して中央部で切り開くが、その際の編物端
部の丸まりの程度及び仕上后の風合、ピリング特
性を、調査したものである。
実験1では、繊度1.5デニールの自発伸長性ポ
リエステル繊維を用いた例であり、実験2は、繊
維3.0デニールの自発伸長性ポリエステル繊維を
用いた例である。
これに対して、実験3では、破断伸度の熱処理
による低下率が7%と比較的少いものを用いた例
であつて、この場合は、切り開いた編物端部の丸
まり方は、大きくは改良されず、ピリング特性も
悪い。
又実験4は、比較用として、通常の抗ピルタイ
プのポリエステル繊維、繊度1.5デニール100%に
よる紡績糸を用いた例であつて、ピリング特性は
良好であるが、編物端部の丸まりが発生し、極め
て、仕上加工時の取り扱いに繁雑をきわめた。[Table] As explained above, the knitted fabric of the present invention uses spun yarn with a twist coefficient of 2.5 or more in a single yarn state,
This is a knitted fabric, but the spun yarn contains 20 to 80% by weight of the entire yarn of spontaneously extensible polyester fibers that elongate by 4% or more when subjected to dry heat treatment at a temperature of 180°C. Since it is possible to elongate the polyester fibers and thereby reduce the twisting torque of the spun yarn, it is possible to eliminate the curling up of the ends of the knitted fabric of the present invention. The fibers to be blended may be ordinary polyester fibers or any other fibers. Furthermore, in the above blended yarn, the structure of the spun yarn becomes loose due to the spontaneously elongated polyester fibers (that is, the structure of the spun yarn forming the knitted fabric becomes loose, and within the spun yarn, the single fibers become loose). (makes it easier to exercise). Therefore, a knitted fabric with a soft texture and fullness can be obtained without using high shrinkage fibers or conjugate fibers. Furthermore, even with such a loose structure, the pilling characteristics can be maintained to a level that is sufficient to withstand use by heat-treating the breaking elongation of the spontaneously extensible polyester fiber to reduce the elongation at break by 10 to 50%. We were able to improve this. The knitted fabric obtained according to the present invention is achieved by heat-treating the spun yarn or fabric, but the heat treatment conditions require a temperature that exhibits spontaneous elongation, and in wet heat, the temperature is 100°C or higher. , in dry heat
A temperature of 150℃ or higher is required. More preferably, moist heat
It is best to carry out at a temperature of 120°C or higher, dry heat 170°C or higher. The heat treatment process is most preferably carried out in the form of yarn, i.e., in the form of a cot in the spinning process or in the form of a cone or cheese in the winding process, but after knitting, The knitted fabric can also be partially heat-treated using an iron or the like. In the knitted fabric obtained in the above manner, once the spontaneously extensible polyester fibers are elongated by heat treatment and the twisting torque is eliminated, the structure of the fabric becomes stable and the phenomenon of the edges of the knitted fabric being curled up is eliminated. The texture is kept soft and the pin resistance is good. Table 2 shows that an Amagasa is knitted using spun yarn containing spontaneously extensible polyester fibers that has been heat-treated with steam at 120°C for 30 minutes in the form of a cheese, and is cut open at the center during finishing. The degree of curling of the ends of the knitted fabric, the texture after finishing, and the pilling characteristics were investigated. Experiment 1 is an example in which spontaneously extensible polyester fibers with a fineness of 1.5 denier are used, and Experiment 2 is an example in which spontaneously extensible polyester fibers with a fiber size of 3.0 denier are used. On the other hand, in Experiment 3, the reduction rate of elongation at break due to heat treatment was relatively small at 7%, and in this case, the curling of the cut-out knitted fabric ends was not large. It is not improved and the pilling characteristics are also poor. Experiment 4 was an example in which ordinary anti-pilling type polyester fibers and 100% spun yarn with a fineness of 1.5 denier were used for comparison, and although the pilling properties were good, the edges of the knitted fabric curled, and This made handling during finishing extremely complicated.
【表】【table】
【表】
第2表において使用した天竺の代りに、経編物
であるハーフトリコツトを編成し、第2表と同様
に評価した。即ち、自発伸長性ポリエステル系繊
維を含む紡績糸をチーズ状で温度120℃の蒸気で
30分間熱処理を実施しこの糸によりハーフトリコ
ツトを編成し、耳まくれの状態を評価した結果を
第3表に示す。実験5に示すものは、耳まくれ、
ピリング共に良好であつたが、実験6のものはピ
リング性が不良であり、実験7のものは、耳まく
れが不良であつた。[Table] Instead of the jersey used in Table 2, a warp knitted half-tricot was knitted and evaluated in the same manner as in Table 2. In other words, spun yarn containing spontaneously extensible polyester fibers is processed into a cheese shape using steam at a temperature of 120°C.
A half tricot was knitted using this yarn after heat treatment for 30 minutes, and the state of the rolled ears was evaluated. Table 3 shows the results. Experiment 5 shows that the ears are rolled up;
Pilling was good in both cases, but those in Experiment 6 had poor pilling properties, and those in Experiment 7 had poor ear curling.
【表】【table】
Claims (1)
用した編物であつて、該紡績糸が温度180℃の乾
熱処理により、4%以上伸長し、且つ、該熱処理
による破断伸度の減少率が10〜50%である自発伸
長性のポリエステル系繊維を糸全体の40〜80の重
量%含有していることを特徴とするポリエステル
系繊維編物。1 A knitted fabric using spun yarn with a twist coefficient of 2.5 or more in the form of a single yarn, where the spun yarn is elongated by 4% or more by dry heat treatment at a temperature of 180°C, and the elongation at break is reduced by the heat treatment. A polyester fiber knitted fabric characterized by containing 40 to 80% by weight of the entire yarn of spontaneously extensible polyester fibers having a ratio of 10 to 50%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10117779A JPS5626041A (en) | 1979-08-10 | 1979-08-10 | Polyester type fiber knitted fabric |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10117779A JPS5626041A (en) | 1979-08-10 | 1979-08-10 | Polyester type fiber knitted fabric |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5626041A JPS5626041A (en) | 1981-03-13 |
JPS627300B2 true JPS627300B2 (en) | 1987-02-17 |
Family
ID=14293709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10117779A Granted JPS5626041A (en) | 1979-08-10 | 1979-08-10 | Polyester type fiber knitted fabric |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5626041A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01124200U (en) * | 1988-02-16 | 1989-08-23 | ||
JPH0327517Y2 (en) * | 1985-07-25 | 1991-06-13 | ||
JPH054799Y2 (en) * | 1987-05-28 | 1993-02-05 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60215855A (en) * | 1984-04-06 | 1985-10-29 | ユニチカ株式会社 | Nonwoven fabric comprising chitin fiber |
GB2524323B (en) | 2014-03-21 | 2016-05-18 | Dyson Technology Ltd | A surface treating head |
-
1979
- 1979-08-10 JP JP10117779A patent/JPS5626041A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0327517Y2 (en) * | 1985-07-25 | 1991-06-13 | ||
JPH054799Y2 (en) * | 1987-05-28 | 1993-02-05 | ||
JPH01124200U (en) * | 1988-02-16 | 1989-08-23 |
Also Published As
Publication number | Publication date |
---|---|
JPS5626041A (en) | 1981-03-13 |
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