JPH04174731A - Regenerated cellulose-based bulky spun yarn and production thereof - Google Patents
Regenerated cellulose-based bulky spun yarn and production thereofInfo
- Publication number
- JPH04174731A JPH04174731A JP29662290A JP29662290A JPH04174731A JP H04174731 A JPH04174731 A JP H04174731A JP 29662290 A JP29662290 A JP 29662290A JP 29662290 A JP29662290 A JP 29662290A JP H04174731 A JPH04174731 A JP H04174731A
- Authority
- JP
- Japan
- Prior art keywords
- regenerated cellulose
- yarn
- spun yarn
- fiber
- cut
- 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
- 239000004627 regenerated cellulose Substances 0.000 title claims description 65
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims abstract description 61
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009835 boiling Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 229920003043 Cellulose fiber Polymers 0.000 claims description 48
- 238000011282 treatment Methods 0.000 claims description 13
- 238000007378 ring spinning Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 abstract description 12
- 239000004744 fabric Substances 0.000 abstract description 5
- 229920000297 Rayon Polymers 0.000 description 14
- 239000000463 material Substances 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009981 jet dyeing Methods 0.000 description 4
- 229920001407 Modal (textile) Polymers 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 241000931705 Cicada Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 210000004943 gill filament Anatomy 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、再生セルロース系繊維からなり、かつ嵩高性
に優れた紡績糸及びその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a spun yarn made of regenerated cellulose fibers and having excellent bulkiness, and a method for producing the same.
（従来の技術）
一般に、衣料品における嵩高性は、保温性や軽さ、風合
いを向」ニさせる」二で必要欠くべからざる特性である
。合成繊維を原料とする紡績糸に嵩高性を側群する方法
として、熱収縮性の異なる熱可塑性合成繊維を複合した
後、熱処理を施すことにより嵩高性を得る方法が知られ
ており、その代表的なものとして、アクリルやポリエス
テルの嵩高紡績糸が挙げられる。しかしながら、前記嵩
高紡績系は、熱可塑性合成繊維に共通ずる疎水性により
吸水性に乏しく、シかも静電気が発生しやすい等の欠点
を有し、衣料用素材として好ましくない。(Prior Art) In general, bulkiness in clothing is an indispensable characteristic that improves heat retention, lightness, and texture. A known method for imparting bulk to spun yarns made from synthetic fibers is to composite thermoplastic synthetic fibers with different heat shrinkability and then heat treat them. Examples include bulky spun yarns of acrylic and polyester. However, the bulky spinning system has drawbacks such as poor water absorption due to the hydrophobicity common to thermoplastic synthetic fibers and easy generation of static electricity, making it undesirable as a material for clothing.
一方、再生セルロース系繊維は、＠水性に優れるた狛衣
料用素材として好ましいものの熱可塑性に乏しく、シた
がって十分な嵩高性が発現しない。On the other hand, although regenerated cellulose fibers are preferable as materials for protective clothing due to their excellent aqueous properties, they lack thermoplasticity and therefore do not exhibit sufficient bulk.
再生セルロース系繊維に嵩高性を側群することを目的に
９種々の方法が提案されている。例えば。Nine different methods have been proposed for the purpose of imparting bulk to regenerated cellulose fibers. for example.
特公昭５３−４６９２６号公報には、紡出直後のビスコ
ースレーヨン紡出糸に物理的作用を働かしめることによ
り直接かつ容易に嵩高性をイマ］与する方法が提案され
ている。特開昭５７−１０１．ｔ）０６号公報には。Japanese Patent Publication No. 53-46926 proposes a method for directly and easily imparting bulkiness to spun viscose rayon yarn by applying a physical action to the spun yarn immediately after spinning. JP-A-57-101. t) In Publication No. 06.
湿潤セルロース系糸条の膨潤度を制御した後１通常の嵩
高加工を施すことにより嵩高糸を得る方法が提案されて
いる。しかしながら、これらの方法で得られる嵩高糸は
、いずれもフィラメント糸であり、その形態には紡績糸
にみられるような毛羽や撚り、自然な斑がないた必、織
編物等の衣料用素材として展開する上で制約を受けると
いう問題を有している。また、これらの方法で得られた
嵩高糸を１例えば、カットしてステーブル繊維とした後
紡績して嵩高紡績糸としたとき、複数の紡績工程を経て
繊維の平行性が高まるにしたがい嵩高性が低下し、繊維
を結束させるに必要な撚りが付与された段階では、その
物理的作゛用により嵩高性はほとんど消失し、所望の嵩
高糸を得ることができない。他方、湿式紡糸の後、紡出
糸に硫酸処理を施して捲縮を発現させたビスコースレー
ヨンのステープル繊維を紡績することにより糸の嵩高性
＝３＝
や風合いを改良する方法も提案されているが、この方法
で得られる嵩高糸も、紡績工程中の延伸作用と加熱作用
により嵩高性はほとんど消失し、所望の嵩高糸を得るこ
とができない。A method has been proposed in which a bulky yarn is obtained by controlling the degree of swelling of a wet cellulose yarn and then subjecting it to ordinary bulking processing. However, the bulky yarns obtained by these methods are all filament yarns, and their form is free of fuzz, twist, and natural unevenness found in spun yarns, and is suitable for use as clothing materials such as woven and knitted fabrics. It has the problem of being subject to restrictions in its development. In addition, when the bulky yarn obtained by these methods is cut into stable fibers and then spun to make a bulky spun yarn, the bulkiness increases as the parallelism of the fibers increases through multiple spinning processes. At the stage where the twist required to bind the fibers has been lowered and the twist necessary to bind the fibers has been applied, the bulkiness is almost completely lost due to the physical action, making it impossible to obtain the desired bulky yarn. On the other hand, a method has also been proposed to improve the bulkiness of the yarn (=3=) and texture by spinning staple fibers of viscose rayon that are crimped by subjecting the spun yarn to sulfuric acid treatment after wet spinning. However, even the bulky yarn obtained by this method loses most of its bulkiness due to the stretching and heating effects during the spinning process, making it impossible to obtain the desired bulky yarn.
（発明が解決しようとする課題）
本発明は、前記問題を解決しようとするものであり、再
生セルロース系繊維からなり、嵩高性に優れ、衣料用素
材として好適に使用することができる紡績糸及びその製
造方法を提供しようとするものである。(Problems to be Solved by the Invention) The present invention aims to solve the above-mentioned problems, and provides a spun yarn made of regenerated cellulose fibers, which has excellent bulkiness, and which can be suitably used as a material for clothing. This paper attempts to provide a manufacturing method for the same.
（課題を解決するための手段）
本発明者は、牽切作用により延伸切断した繊維の挙動を
検討する過程で、熱可塑性に乏しいセルロース系紡績用
繊維素材において、牽切切断時に蓄積された繊維内の歪
みをその後の沸水処理によって解放・除去する際に生じ
る収縮挙動、いわゆる緩和収縮作用によって生じる繊維
収縮が前記素材をエツジ切断したセルロース系繊維と比
較して大ぎな収縮差となることに着目し５本発明に到達
した。すなわち１本発明は。(Means for Solving the Problems) In the process of studying the behavior of fibers stretched and cut by tension cutting action, the present inventor discovered that in a cellulose-based spinning fiber material with poor thermoplasticity, fibers accumulated during tension cutting We focused on the fact that the shrinkage behavior that occurs when the inner strain is released and removed by subsequent boiling water treatment, that is, the fiber shrinkage that occurs due to the so-called relaxation shrinkage effect, results in a large shrinkage difference in the material compared to edge-cut cellulose fibers. The present invention has now been achieved. In other words, one aspect of the present invention is.
１、牽切作用により延伸切断された再生セルロース系繊
維（ａ）２０〜８０重量％とエツジカッタ等の切断手段
を用いる通常の切断法により切断された一種以上の再生
セルロース系繊維（ｂ）８０〜２０重量％とからなる再
生セルロース系紡績糸であって。1. 20 to 80% by weight of regenerated cellulose fibers (a) stretched and cut by tension cutting action and 80 to 80% by weight of one or more types of regenerated cellulose fibers (b) cut by a normal cutting method using a cutting means such as an edge cutter A regenerated cellulose-based spun yarn consisting of 20% by weight.
前記再生セルロース系繊維（ａ）の平均繊度Ｄａ（デニ
ール）、平均繊維長Ｌａ（ｍｍ）、前記再生セルロース
系繊維（ｂ）の平均繊度Ｄｂ （デニール）、平均繊維
長Ｌｂ（ｍｍ）が下記［１］〜［４］式を満足し、かつ
撚係数が２．０〜４．０であることを特徴とする再生セ
ルロース系嵩高紡績糸。The average fineness Da (denier), average fiber length La (mm) of the regenerated cellulose fiber (a), average fineness Db (denier) and average fiber length Lb (mm) of the regenerated cellulose fiber (b) are as follows [ A regenerated cellulose-based bulky spun yarn that satisfies formulas 1] to [4] and has a twist coefficient of 2.0 to 4.0.
１．５≦Ｄａ≦５．０ ■３０
≦Ｌ ａ≦］２０■
Ｄ ａ ／ Ｄ ｂ≦０．８５
■１．１≦Ｌａ／Ｌｂ＜１．３
■２、牽切作用により延伸切断した再生セルロース系繊
維（ａ）とエツジカッタ等の切断手段を用いる通常の切
断法により切断した一種以」二の再生セルロース系繊維
（ｂ）とを、前記再生セルロース系繊維（ａ）の平均繊
度Ｄａ （デニール）、平均繊維長Ｌａ（ｍｍ）、前記
再生セルロース系繊維（ｂ）の平均繊度Ｄｂ（デニール
）、平均繊維長Ｌ ｂ （ｎ＋ｍ）が下記■〜■式を満
足するようにして混合率（ａ／ｂ）（重量％）２０〜８
０／８０〜２０で線条機に供給して混紡し、仕」二線条
工程及び粗紡工程を経て混紡粗糸とし、この混紡粗糸を
リング精紡機により撚数２．０〜４、Ｏで精紡して混合
紡績糸とし２次いで。1.5≦Da≦5.0 ■30
≦L a≦]20■ D a / D b ≦0.85
■1.1≦La/Lb<1.3
(2) Regenerated cellulose fibers (a) that have been stretch-cut by a tension-cutting action and one or more regenerated cellulose fibers (b) that have been cut by a normal cutting method using a cutting means such as an edge cutter are combined with the regenerated cellulose The average fineness Da (denier) and average fiber length La (mm) of the system fiber (a), the average fineness Db (denier) and average fiber length L b (n+m) of the regenerated cellulose fiber (b) are as follows ■ to ■ Mixing ratio (a/b) (wt%) 20 to 8 so as to satisfy the formula
0/80 to 20 is fed to a filament machine and blended, and then passed through a double filament process and a roving process to become a blended roving. Then, it is spun into a mixed spun yarn.
得られた混合紡績糸に沸水処理を施すことを特徴とする
再生セルロース系嵩高紡績糸の製造方法。A method for producing a regenerated cellulose-based bulky spun yarn, which comprises subjecting the obtained mixed spun yarn to boiling water treatment.
１．５≦Ｄａ≦５．０ ■３０
≦Ｌａ≦１２０・−■
Ｄ ａ ／ Ｄ ｂ≦０．８５
■１．１≦Ｌ ａ ／ Ｌ ｂ ＜ １．３
■を要旨とするものである。1.5≦Da≦5.0 ■30
≦La≦120・-■ D a / D b ≦0.85
■1.1≦L a / L b < 1.3
The main points are as follows.
まず７本発明の再生セルロース系嵩高紡績糸に関して説
明する。First, the regenerated cellulose bulky spun yarn of the present invention will be explained.
本発明の再生セルロース系嵩高紡績糸は、牽切作用によ
り延伸切断された再生セルロース系繊維（ａ）２０〜８
０重量％とエツジカッタ等の通常のカット法により切断
された一種以上の再生セルロース系繊維ｂ８０〜２０重
量％とからなるものである。The regenerated cellulose-based bulky spun yarn of the present invention comprises regenerated cellulose-based fibers (a) 20 to 8
0% by weight and 80 to 20% by weight of one or more types of regenerated cellulose fibers cut by a conventional cutting method such as an edge cutter.
本発明でいう再生セルロース系繊維（ａ）とは。What is the regenerated cellulose fiber (a) as used in the present invention?
バルブ等の原料から製造されるビスコースレーヨン繊維
やポリノジック繊維、フトンリンクを原料とするキュプ
ラレーヨン繊維で、牽切作用により延伸切断されたもの
である。この牽切作用とは。Viscose rayon fibers and polynosic fibers manufactured from raw materials for valves, etc., and cupra rayon fibers made from futon links, which are stretched and cut by a tension-cutting action. What is this tension-cutting effect?
連続繊維束を表面速度の異なる複数対のローラ間に供給
し、そのローラ把持力と表面速度差により連続繊維束を
切断して短繊維束とする作用である。This is an action in which a continuous fiber bundle is fed between multiple pairs of rollers with different surface speeds, and the continuous fiber bundle is cut into short fiber bundles by the roller gripping force and the difference in surface speed.
この牽切作用により延伸切断された再生セルロース系繊
維（ａ＞は、その分子配向が向上し弱点が除去されるた
め、得られた短繊維は強力が向上かつ伸度が低下したも
のとなり、しかも沸水処理を施したとき、延伸切断時に
蓄積された残留歪みが解放されるため、非常に高い繊維
収縮を発現する。The regenerated cellulose fibers (a) stretched and cut by this stretch-cutting action improve their molecular orientation and remove weak points, so the resulting short fibers have improved strength and reduced elongation. When subjected to boiling water treatment, residual strain accumulated during stretching and cutting is released, resulting in extremely high fiber shrinkage.
例えば、ビスコースレーヨン繊維を例にとって特性値を
比較すると１通常のエツジカッタを用いて押切りしたス
テーブル繊維が乾強度約２．５ｇ／デニール、伸度約２
５％、洲本収縮率約１０％の特性を有するのに対し、牽
切作用により延伸切断したスフ−
テーブル繊維は、乾強度約２．８ｇ／デニール、伸度約
９％、洲本収縮率約２８％の特性を有し、高強度、低伸
度、高沸水収縮率のものとなる。For example, when comparing the characteristic values of viscose rayon fiber as an example, the stable fiber extruded using a normal edge cutter has a dry strength of about 2.5 g/denier and an elongation of about 2.
5% and a Sumoto shrinkage rate of about 10%, whereas the Sufu-table fiber stretched and cut by the tension-cutting action has a dry strength of about 2.8 g/denier, an elongation of about 9%, and a Sumoto shrinkage rate of about 28. %, and has high strength, low elongation, and high boiling water shrinkage.
本発明でいう再生セルロース系繊維（ａ）では。The regenerated cellulose fiber (a) as used in the present invention.
平均繊度Ｄａが０式を、平均繊維長Ｌａが０式をそれぞ
れ満足することが必要である。平均繊度Ｄａが１．５デ
ニ一ル未満であると、複数対のローラ間に供給して延伸
切断する際にネップが発生して糸質が低下するため、一
方、平均繊度Ｄａが５．０デニールを超えると、紡績糸
としたときの繊維構成本数が不足して糸質が低下するた
め、いずれも好ましくない。また、平均繊維長Ｌａが３
０＋＋＋＋ｎ未満であると、延伸する際に繊維の制御が
困難となって糸斑が発生しやすく、一方、平均繊賄］長
Ｌａが１２０ ｍｍを超えると、紡績性が低下するのみ
ならず繊維の切断が発生して糸質が低下するた狛、いず
れも好ましくない。It is necessary that the average fineness Da satisfies the formula 0 and the average fiber length La satisfies the formula 0. If the average fineness Da is less than 1.5 denier, neps will occur when the yarn is fed between multiple pairs of rollers and stretched and cut, resulting in a decrease in yarn quality. If the denier is exceeded, the number of fibers constituting the spun yarn becomes insufficient and the quality of the yarn deteriorates, which is not preferable. In addition, the average fiber length La is 3
If it is less than 0 + + + n, it will be difficult to control the fibers during drawing and yarn unevenness will easily occur, while if the average fiber length La exceeds 120 mm, not only will the spinnability deteriorate, but also fibers will break. Both of these are undesirable because they cause a decrease in thread quality.
木発すの再生セルロース系嵩高紡績糸は、前記再生セル
ロース系繊維（ａ）２０〜８０重量％とエツジカッタ等
の切断手段を用いる通常の切断法により切断された一種
以上の再生セルロース系繊維（ｂ）８０＝２０重量％と
からなるものである。再生セルロース系繊維（ａ）が２
０重量％夫満であると、沸水処理を施したとき延伸切断
時に蓄積された残留歪みが解放されて生じる繊維収縮力
が低いた約嵩高性が十分発現せず、一方、再生セルロー
ス系繊維（ａ）が８０重量％を超えると、一種以上の再
生セルロース系繊維（ｂ）の量が不足するん約嵩高性が
十分発現せず、いずれも好ましくない。The regenerated cellulose-based bulky spun yarn made from wood contains 20 to 80% by weight of the regenerated cellulose fibers (a) and one or more types of regenerated cellulose fibers (b) cut by a normal cutting method using a cutting means such as an edge cutter. 80=20% by weight. Regenerated cellulose fiber (a) is 2
If it is 0% by weight, the residual strain accumulated during stretching and cutting will be released when subjected to boiling water treatment, resulting in low fiber shrinkage force and bulkiness will not be sufficiently expressed. If a) exceeds 80% by weight, the amount of one or more types of regenerated cellulose fibers (b) will be insufficient and the bulkiness will not be sufficiently developed, which is not preferable.
本発明の再生セルロース系嵩高紡績糸では、前記再生セ
ルロース系繊維（ａ）の平均繊度Ｄａと前記再生セルロ
ース系繊維（ｂ）の平均繊度Ｄｂの比（Ｄａ／Ｄｂ）が
０式を、また、前記再生セルロース系繊維（ａ）の平均
繊維長Ｌａと前記再生セルロース系繊維（ｂ）の平均繊
維長Ｌｂの比（Ｌａ／Ｌｂ）が■式をそれぞれ満足する
ことが必要である。これにより、紡績工程のローラドラ
フト時に副次的なドラフトが作用し、再生セルロース系
繊維（ａ）が糸断面の中心部に配置され。In the regenerated cellulose-based bulky spun yarn of the present invention, the ratio (Da/Db) of the average fineness Da of the regenerated cellulose fibers (a) to the average fineness Db of the regenerated cellulose fibers (b) is 0, and It is necessary that the ratio (La/Lb) of the average fiber length La of the regenerated cellulose fiber (a) to the average fiber length Lb of the regenerated cellulose fiber (b) satisfies the formula (2). As a result, a secondary draft acts during the roller draft in the spinning process, and the regenerated cellulose fiber (a) is arranged at the center of the yarn cross section.
かつ再生セルロース系繊維（ｂ）が糸断面の周辺部に配
置されるように両セルロース系繊維が移行され、したが
って、十分な嵩高性が発現し、しかも通常の繊維移行時
にみられる偏平状の嵩高部分いわゆる「蝉の羽根」の発
生を防止することができる。前記比Ｄａ／Ｄｂが０式を
満足しても前記比Ｌ ａ ／ Ｌ ｂが１．１未満であ
ると、紡績工程のローラドラフト時に副次的なドラフト
が作用するにもかかわらず繊維移行が不十分となって前
記「蝉の羽根」が発生し、一方、前記比Ｄａ／Ｄｂが０
式を満足しても前記比Ｌａ／Ｌｂが１．３以上であると
、ｔ’ｔ＋維の移行性は向上するが糸斑が顕著に発生す
るた約、いずれも好ましくない。In addition, both cellulose fibers are transferred so that the regenerated cellulose fibers (b) are arranged at the periphery of the yarn cross section, and therefore, sufficient bulkiness is developed, and the flat bulkiness that is seen when normal fiber transfer is achieved. It is possible to prevent the occurrence of so-called "cicada wings". Even if the ratio Da/Db satisfies the formula 0, if the ratio L a / L b is less than 1.1, fiber transfer will occur despite the secondary draft acting during the roller draft in the spinning process. When the ratio Da/Db is 0, the "cicada wings" are generated.
Even if the formula is satisfied, if the ratio La/Lb is 1.3 or more, the transferability of t't+ fibers will be improved, but thread unevenness will occur significantly, which is not preferable.
本発明の再生セルロース系嵩高紡績糸は、前記再生セル
ロース系繊維（ａ）と前記再生セルロース系繊維（ｂ）
とからなり、かつ撚係数が２．０〜４．０のものである
。撚係数が２．０未満であると。The regenerated cellulose-based bulky spun yarn of the present invention comprises the regenerated cellulose fiber (a) and the regenerated cellulose fiber (b).
and has a twist coefficient of 2.0 to 4.0. The twist coefficient is less than 2.0.
撚りが甘くて糸切れが多発するのみならず、沸水処理を
施して繊維収縮力により嵩高性を発現させるとき、繊維
相互の結束性が乏しいため嵩高性が十分発現せず好まし
くない。一方、撚係数が４．０を超えると、紡績糸とし
たとき風合いが粗硬になりすぎて、商品展開のうえで制
約が生じるため好ましくない。Not only is the twist too loose, resulting in frequent yarn breakage, but also when the fibers are subjected to boiling water treatment to develop bulk due to the fiber shrinkage force, the cohesiveness between the fibers is poor, which is undesirable. On the other hand, if the twist coefficient exceeds 4.0, the texture becomes too rough and hard when spun yarn is produced, which is undesirable because it imposes restrictions on product development.
次に２本発明の再生セルロース系嵩高紡績糸の製造方法
に関して説明する。Next, two methods for producing the regenerated cellulose bulky spun yarn of the present invention will be explained.
本発明の再生セルロース系嵩高紡績糸は、前記再生セル
ロース系繊維（ａ）と前記再生セルロース系繊維（ｂ）
とを、前記［１］〜［４］式を満足するようにして混合
率（ａ／ｂ）（重量％）２０〜８０／８０〜２０で線条
機に供給して混紡し、仕」−線条工程及び粗紡工程を経
て混紡粗糸とし、この混紡粗糸をリング精紡機により撚
係数２．０〜４．０で精紡して混合紡績糸とし９次いで
、得られた混合紡績糸に沸水処理を施すことにより製造
することができる。The regenerated cellulose-based bulky spun yarn of the present invention comprises the regenerated cellulose fiber (a) and the regenerated cellulose fiber (b).
are fed to a filament machine at a mixing ratio (a/b) (wt%) of 20 to 80/80 to 20 so as to satisfy the above formulas [1] to [4], and blended. A blended roving is obtained through a filament process and a roving process, and the blended roving is spun with a twist coefficient of 2.0 to 4.0 using a ring spinning machine to obtain a mixed spun yarn. It can be produced by subjecting it to boiling water treatment.
本発明の製造方法では、まず、再生セルロース系繊維（
ａ）からなるスライバと前記再生セル゛ロース系繊維（
ｂ）からなるスライバを前記［１］〜［４］式を満足す
るようにして各々作成し、得られた両スライバを混合率
（ａ／ｂ）（重量％）２０〜８０／８０〜２０で線条機
に供給して混紡し、仕上線条工程及び粗紡工程を経て混
紡粗糸とする。混紡に際しては、線条機として通常のギ
ル線条機を使用し、前記再生セルロース系繊維（ａ＞を
糸断面の中心部に、かつ前記再生セルロース系繊維（ｂ
）を糸断面の周辺部に配置する。引続き、得られた混紡
粗糸をリング精紡機により撚係数２．０〜４．０で精紡
して混合紡績糸とする。次いで、得られた混合紡績糸に
沸水処理を施す。この沸水処理は１例えば。In the production method of the present invention, first, regenerated cellulose fiber (
a) and the regenerated cellulose fiber (
Slivers consisting of b) were each prepared so as to satisfy the above formulas [1] to [4], and both of the obtained slivers were mixed at a mixing ratio (a/b) (wt%) of 20 to 80/80 to 20. The yarn is fed to a filament machine, blended, and subjected to a finishing filament process and a roving process to produce a blended roving. When blending, a normal Gill filament machine is used as a filament machine, and the regenerated cellulose fibers (a) are placed in the center of the yarn cross section, and the regenerated cellulose fibers (b) are placed in the center of the yarn cross section.
) is placed around the periphery of the thread cross section. Subsequently, the obtained mixed spun roving is spun using a ring spinning machine with a twist coefficient of 2.0 to 4.0 to obtain a mixed spun yarn. Next, the obtained mixed spun yarn is subjected to boiling water treatment. This boiling water treatment is an example.
噴射染色機や液流染色機等の通常の染色機により行うこ
とができる。沸水処理に引続き、混合紡績糸に脱水、乾
燥処理を施して１本発明の再生セルロース系嵩高紡績糸
を得る。This can be carried out using a conventional dyeing machine such as a jet dyeing machine or a jet dyeing machine. Following the boiling water treatment, the mixed spun yarn is dehydrated and dried to obtain the regenerated cellulose-based bulky spun yarn of the present invention.
（作用）
本発明では、前述したように、牽切作用により延伸切断
された再生セルロース系繊維（ａ）を糸断面の中心部に
２かつエツジカッタ等の切断手段を用いる通常の切断法
により切断された一種以上の再生セルロース系繊維（ｂ
）を糸断面の周辺部に配置し、平均繊度、平均繊維長、
平均繊度比。(Function) As described above, in the present invention, the regenerated cellulose fiber (a) that has been stretched and cut by the tension cutting action is cut at the center of the yarn cross section by a normal cutting method using a cutting means such as an edge cutter. and one or more regenerated cellulose fibers (b
) is placed at the periphery of the yarn cross section, and the average fineness, average fiber length,
Average fineness ratio.
平均繊維長比を適切に選択することにより、紡績系に沸
水処理を施したとき、糸断面の中心部に配置された牽切
作用による残留歪みを有する前記再生セルロース系繊維
ａが糸軸方向に緩和収縮し。By appropriately selecting the average fiber length ratio, when the spinning system is subjected to boiling water treatment, the regenerated cellulose fiber a, which has residual strain due to the tension cutting action and is located at the center of the yarn cross section, is oriented in the yarn axis direction. Relax and contract.
その結果として、糸断面の周辺部に配置された前記再生
セルロース系繊維すが糸径方向に屈曲することになり２
したがって、従来困難とされていた再生セルロース系
紡績糸に嵩高性を発現させることができるのである。As a result, the regenerated cellulose fibers arranged around the yarn cross section are bent in the yarn diameter direction.
Therefore, it is possible to make the regenerated cellulose-based spun yarn exhibit bulkiness, which has been considered difficult in the past.
（実施例） 次に、実施例に基づいて本発明を具体的に説明する。(Example) Next, the present invention will be specifically explained based on Examples.
実施例１
常法により作成した単繊維繊度が２，５デニールのビス
コースレーヨントウ（８０万−ｉ’ニール）ヲハーロッ
ク式牽切機に供給し、第１延伸率を５．００゜第２延伸
率を１．９５として牽切し、平均繊維長が１１０ｍｍで
９ｇ／ｍのスライバ（ａ）を作成した。このビスコース
レーヨン繊維の特性値は、牽切前で強度が１．９５ ｇ
／デニール、伸度が２６．８％、洪水収縮率が９．２
％、牽切後で強度が２．３４ｇ／デニール。Example 1 A viscose rayon tow (800,000-i' niel) with a single fiber fineness of 2.5 denier prepared by a conventional method was supplied to a Herlock tension cutter, and the first drawing rate was 5.00° and the second drawing rate was 5.00°. A sliver (a) having an average fiber length of 110 mm and a weight of 9 g/m was produced by tension cutting at a stretching ratio of 1.95. The characteristic value of this viscose rayon fiber is that the strength before tension cutting is 1.95 g.
/denier, elongation is 26.8%, flood shrinkage rate is 9.2
%, strength after tension cutting is 2.34 g/denier.
伸度が１０，３％、洪水収縮率が２７．３％であった。The elongation was 10.3% and the flood shrinkage rate was 27.3%.
別途、常法により作成した単繊維繊度が３，０デニール
のビスコースレーヨントウヲ平均ｍ 細長８５ｍｍにバ
リアプルカットしてステープル繊維とした後、予備開繊
、カーデイング、ギル線条の各工程を経て１２ｇ／ｍの
トップスライバ（ｂ）を作成した。このビスコースレー
ヨン繊維の特性値は、牽切前で強度が２．００ ｇ ／
デニール、伸度が２７．０％。Separately, viscose rayon tow with a single fiber fineness of 3.0 denier was prepared by a conventional method and barrier-cut into a length of 85 mm to make a staple fiber, and then subjected to the steps of pre-opening, carding, and gill filament. A top sliver (b) of 12 g/m was produced. The characteristic value of this viscose rayon fiber is that the strength before tension cutting is 2.00 g /
Denier and elongation are 27.0%.
洪水収縮率が９．０％であった。The flood contraction rate was 9.0%.
次いで、得られた両スライバ（ａ）及び（ｂ）を混合率
（ａ／’ｂ）（重量％） ４０／６０で線条機に供、給
して混紡し、順次、仕上線条工程及び粗紡工程を経て０
．６ｇ／ｍの混紡粗糸を作成し、この混紡粗糸をリング
精紡機により撚数５００回／ｍ（撚係数２．９２）で精
紡して３２メートル番手の混合紡績糸を作成した。Next, both of the obtained slivers (a) and (b) are fed to a filament machine at a mixing ratio (a/'b) (wt%) of 40/60 for blending, and are sequentially subjected to a finishing filament process and a filament process. 0 after the roving process
．． A blended roving of 6 g/m was prepared, and this blended roving was spun with a ring spinning machine at a twist rate of 500 turns/m (twist coefficient 2.92) to produce a mixed spun yarn with a count of 32 meters.
次に、得られた混合紡績糸に総加工を施した後。Next, the obtained mixed spun yarn is subjected to total processing.
噴射染色機により沸水処理とともに染色、脱水８乾燥の
各処理を施して、ビスコースレーヨン紡績糸を得た。A spun viscose rayon yarn was obtained by performing boiling water treatment, dyeing, dehydration, and drying using a jet dyeing machine.
得られたビスコースレーヨン紡績糸は、ソフトで嵩高性
に富み、しかも均斉度の高いものであった。The obtained spun viscose rayon yarn was soft and bulky, and had a high degree of uniformity.
実施例２
常法により作成した単繊維繊度が１．７デニールのビス
コースレーヨンＦつ（８０万デニール）を３段牽切式ス
ライバーリアクタに供給し、第１延伸率を１．９０．第
２延伸率を２．２０．第３延伸率を２．５０として牽切
し、平均繊維長が４４＋＋ｎｎで７３０ゲレン／６ヤー
ドのスライバ（ａ）を作成した。このビスコースレーヨ
ン繊維の洪水収縮率は、牽切後で２７．１％であった。Example 2 F pieces of viscose rayon (800,000 denier) with a single fiber fineness of 1.7 denier prepared by a conventional method were supplied to a three-stage tension-cutting sliver reactor, and the first drawing rate was set to 1.90. The second stretching ratio was set to 2.20. A sliver (a) having an average fiber length of 44++nn and 730 gels/6 yards was produced by stretching at a third stretching ratio of 2.50. The flood shrinkage rate of this viscose rayon fiber was 27.1% after stretch cutting.
別途、常法により作成した重合度が４００ 、単繊維繊
度が２．０デニール、＠維長が３８ｍｍ、洪水収縮率が
６．０％のポリノジック繊維を通常の混打綿。Separately, a polynosic fiber with a degree of polymerization of 400, a single fiber fineness of 2.0 denier, a fiber length of 38 mm, and a flood shrinkage rate of 6.0%, prepared by a conventional method, was made into ordinary mixed cotton.
カーデイングの各工程を経てスライバ（ｂ）とした。A sliver (b) was obtained through each process of carding.
次いで、得られた両スライバ（ａ）及び（ｂ）を混合率
（ａ／ｂ）（重量％）５０１５０で線条機に供給して混
紡し、順次、仕上線条工程、粗紡工程及び精紡工程を経
て撚数１７回／インチ（撚係数３．１０）。Next, both of the obtained slivers (a) and (b) are fed to a filament machine at a mixing ratio (a/b) (wt%) of 50150 to be blended, and they are sequentially passed through a finishing filament process, a roving process, and a spinning process. Through the process, the number of twists is 17 times/inch (twist coefficient 3.10).
英式綿番手３０ｓの混合紡績糸を作成した。A mixed spun yarn of English style cotton count 30s was prepared.
次に、得られた混合紡績糸を用いて経糸密度を６８本／
インチ、緯糸密度を６０本／インチとして平織物を製造
し、得られた平織物に液流染色機により沸水処理を施す
とともに１反応染料で染色し。Next, using the obtained mixed spun yarn, the warp density was set to 68 yarns/
A plain woven fabric was produced with a weft density of 60 threads/inch, and the obtained plain woven fabric was subjected to a boiling water treatment using a jet dyeing machine and dyed with a 1-reactive dye.
ジョートルロープ式乾燥機により無接触で乾燥処理を施
して、ビスコースレーヨン／ポリノジック混合紡績糸か
らなる加工揚がり生地を得た。A processed fabric made of viscose rayon/polynosic mixed spun yarn was obtained by drying in a non-contact manner using a Jottle rope dryer.
得られた生地は、従来の再生セルロース系繊維では得る
ことができなかった嵩高性に富み、ソフトであり、しか
もポリウム感の高いものであった。The resulting fabric was rich in bulk, which could not be obtained with conventional regenerated cellulose fibers, was soft, and had a high polyum feel.
（発明の効果）
本発明の再生セルロース系紡績糸は、嵩高性に優れ、布
帛としたとき均質で、かつ良好な風合いを発現し、衣料
用素材として好適に使用することができる。そして３本
発明の製造方法によれば。(Effects of the Invention) The regenerated cellulose-based spun yarn of the present invention has excellent bulkiness, exhibits a homogeneous and good texture when made into a cloth, and can be suitably used as a material for clothing. and 3 according to the manufacturing method of the present invention.
前記再生セルロース系紡績糸を容易に、しかも安価に製
造することができる。The regenerated cellulose-based spun yarn can be easily produced at low cost.
特許出願人 ユニチカ株式会社Patent applicant: Unitika Co., Ltd.
Claims (1)
繊維 （ａ）２０〜８０重量％とエッジカッタ等の切断手段を
用いる通常の切断法により切断された一種以上の再生セ
ルロース系繊維 （ｂ）８０〜２０重量％とからなる再生セルロース系紡
績糸であって、前記再生セルロース系繊維（ａ）の平均
繊度Ｄａ（デニール）、平均繊維長Ｌａ（ｍｍ）、前記
再生セルロース系繊維（ｂ）の平均繊度Ｄｂ（デニール
）、平均繊維長Ｌｂ（ｍｍ）が下記［１］〜［４］式を
満足し、かつ撚係数が２．０〜４．０であることを特徴
とする再生セルロース系嵩高紡績糸。 １．５≦Ｄａ≦５．０…………………………………［１
］ ３０≦Ｌａ≦１２０…………………………………［２］ Ｄａ／Ｄｂ≦０．８５…………………………………［３
］ １．１≦Ｌａ／Ｌｂ＜１．３………………………………
…［４］ （２）牽切作用により延伸切断した再生セルロース系繊
維（ａ）とエッジカッタ等の切断手段を用いる通常の切
断法により切断した一種以上の再生セルロース系繊維（
ｂ）とを、前記再生セルロース系繊維（ａ）の平均繊度
Ｄａ（デニール）、平均繊維長Ｌａ（ｍｍ）、前記再生
セルロース系繊維（ｂ）の平均繊度Ｄｂ（デニール）、
平均繊維長Ｌｂ（ｍｍ）が下記［１］〜［４］式を満足
するようにして混合率（ａ／ｂ）（重量％）２０〜８０
／８０〜２０で線条機に供給して混紡し、仕上線条工程
及び粗紡工程を経て混紡粗糸とし、この混紡粗糸をリン
グ精紡機により撚数２．０〜４．０で精紡して混合紡績
糸とし、次いで、得られた混合紡績糸に沸水処理を施す
ことを特徴とする再生セルロース系嵩高紡績糸の製造方
法。 １．５≦Ｄａ≦５．０…………………………………［１
］ ３０≦Ｌａ≦１２０…………………………………［２］ Ｄａ／Ｄｂ≦０．８５…………………………………［３
］ １．１≦Ｌａ／Ｌｂ＜１．３………………………………
…［４］[Scope of Claims] (1) 20 to 80% by weight of regenerated cellulose fiber (a) that has been stretch-cut by stretch-cutting action and one or more types of recycled cellulose fibers that have been cut by a normal cutting method using a cutting means such as an edge cutter. A regenerated cellulose spun yarn consisting of 80 to 20% by weight of cellulose fiber (b), the average fineness Da (denier) of the regenerated cellulose fiber (a), the average fiber length La (mm), and the regenerated cellulose The average fineness Db (denier) and average fiber length Lb (mm) of the system fiber (b) satisfy the following formulas [1] to [4], and the twist coefficient is 2.0 to 4.0. Regenerated cellulose-based bulky spun yarn. 1.5≦Da≦5.0…………………………………[1
] 30≦La≦120……………………………………[2] Da/Db≦0.85………………………………[3
] 1.1≦La/Lb<1.3………………………………
...[4] (2) Regenerated cellulose fiber (a) that has been stretch-cut by stretch cutting action and one or more types of regenerated cellulose fiber (a) that has been cut by a normal cutting method using a cutting means such as an edge cutter (
b), the average fineness Da (denier) of the regenerated cellulose fiber (a), the average fiber length La (mm), the average fineness Db (denier) of the regenerated cellulose fiber (b),
Mixing ratio (a/b) (weight%) 20 to 80 so that the average fiber length Lb (mm) satisfies the following formulas [1] to [4]
/80 to 20 is fed to a filament machine for blending, passes through a finishing filament process and a roving process to form a blended roving, and this blended roving is spun by a ring spinning machine with a twist number of 2.0 to 4.0. A method for producing a regenerated cellulose-based bulky spun yarn, comprising: preparing a mixed spun yarn, and then subjecting the obtained mixed spun yarn to boiling water treatment. 1.5≦Da≦5.0…………………………………[1
] 30≦La≦120……………………………………[2] Da/Db≦0.85………………………………[3
] 1.1≦La/Lb<1.3………………………………
…[4]
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29662290A JPH04174731A (en) | 1990-10-31 | 1990-10-31 | Regenerated cellulose-based bulky spun yarn and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29662290A JPH04174731A (en) | 1990-10-31 | 1990-10-31 | Regenerated cellulose-based bulky spun yarn and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04174731A true JPH04174731A (en) | 1992-06-22 |
Family
ID=17835932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29662290A Pending JPH04174731A (en) | 1990-10-31 | 1990-10-31 | Regenerated cellulose-based bulky spun yarn and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04174731A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776632A (en) * | 2012-05-30 | 2012-11-14 | 宁波康赛妮毛绒制品有限公司 | Method for producing high-count recoon dog fur woolen knitting yarns |
| JP2018040100A (en) * | 2016-09-02 | 2018-03-15 | ダイワボウホールディングス株式会社 | Rayon fiber for air-laid nonwoven fabric and method for producing the same, air-laid nonwoven fabric and method for producing the same, and water-disintegrable paper |
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1990
- 1990-10-31 JP JP29662290A patent/JPH04174731A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776632A (en) * | 2012-05-30 | 2012-11-14 | 宁波康赛妮毛绒制品有限公司 | Method for producing high-count recoon dog fur woolen knitting yarns |
| JP2018040100A (en) * | 2016-09-02 | 2018-03-15 | ダイワボウホールディングス株式会社 | Rayon fiber for air-laid nonwoven fabric and method for producing the same, air-laid nonwoven fabric and method for producing the same, and water-disintegrable paper |
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