JPH0320495B2 - - Google Patents
Info
- Publication number
- JPH0320495B2 JPH0320495B2 JP60146183A JP14618385A JPH0320495B2 JP H0320495 B2 JPH0320495 B2 JP H0320495B2 JP 60146183 A JP60146183 A JP 60146183A JP 14618385 A JP14618385 A JP 14618385A JP H0320495 B2 JPH0320495 B2 JP H0320495B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- twisting
- false
- section
- yarns
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 12
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
産業上の利用分野
本発明は、長手方向に太さむらを有するＵ断面
糸からなる特殊糸の仮撚方法に関するものであ
る。
従来技術
特開昭57−121614号及び特開昭57−121606号公
報に開示されるＵ断面糸のように、長手方向に太
さむらを有する、即ち配向性の低い部分と配向性
の高い部分を有するフイラメント糸は、独特の風
合及び染色効果を有するものとして近年注目され
ているが、通常の仮撚加工を施すとヒーターの影
響で配向性の低い太い部分が熱劣化を起こし、
1.8g／ｄ以下の弱糸となり、後次工程で種々のト
ラブルを起こし易く、実用性ある加工糸を得るこ
とは困難であつた。例えば、上述の如く実用性あ
る強度が得難いだけでなく、撚糸工程で弱糸部分
がフイラメント切れを起こし、毛羽となり、撚糸
の操業性の低下をきたし、また製品の製織効率を
も下げる。
発明の目的
本発明は、このように長手方向に太さむらを有
するフイラメント糸、特にＵ断面糸の、操業性に
優れた、強度ある仮撚方法を提供することを目的
とする。
発明の構成
本発明の方法は、長手方向に太さむらを有する
Ｕ断面糸からなる特殊糸を仮撚するに当たつて、
当該Ｕ断面糸に、気体を吹きつけ、Ｕ断面糸を互
いに交絡させ、その後に仮撚加工することを特徴
とする。
即ち、本発明では太・細を有するＵ断面糸が、
仮撚加工前の気体の吹きつけによつて、互いに交
絡し合い、集束性が高まり、補強し合つて糸条全
体としての強度が上がり、撚糸工程での操業性も
著しく改良されるものである。
実際に、仮撚加工前のＵ断面糸群に0.5〜３
Kg／cm2程度の圧力で気体を吹きつけるだけで、通
常の仮撚加工を施しても糸の強度は2.8g／ｄ以上
と強くなり、気体を吹きつけない場合の強度に比
較して50％以上も強くなる。撚糸工程での糸切れ
も激減し、撚糸の操業性及び製織効率も著しく改
善される。
実施例 １
ポリエステルタイプのＵ断面糸180d／48fを表
の条件で仮撚し、仮撚時の操業性及び加工糸の
物性を試験した。その結果を表に示す。
INDUSTRIAL APPLICATION FIELD The present invention relates to a method for false twisting special yarns made of U-section yarns having uneven thickness in the longitudinal direction. Prior Art U-section yarns disclosed in JP-A-57-121614 and JP-A-57-121606 have thickness unevenness in the longitudinal direction, i.e., a portion with low orientation and a portion with high orientation. In recent years, filament yarns with a unique texture and dyeing effect have been attracting attention, but when subjected to normal false twisting, the thick portions with low orientation suffer thermal deterioration due to the influence of the heater.
This results in a weak yarn of 1.8 g/d or less, which tends to cause various troubles in subsequent processes, and it is difficult to obtain a practically processed yarn. For example, as mentioned above, it is not only difficult to obtain a practical strength, but also the weak yarn portions cause filament breakage during the twisting process, resulting in fluff, which reduces the workability of the twisted yarn and also reduces the weaving efficiency of the product. OBJECTS OF THE INVENTION An object of the present invention is to provide a method for false-twisting filament yarns having uneven thickness in the longitudinal direction, particularly U-section yarns, with excellent operability and strength. Structure of the Invention The method of the present invention involves the following steps when false twisting a special yarn consisting of a U-section yarn having uneven thickness in the longitudinal direction.
It is characterized by blowing gas onto the U-section yarn to intertwine the U-section yarn with each other, and then false-twisting the yarn. That is, in the present invention, the U cross-section yarn having thick and thin
By blowing gas before false twisting, the fibers become intertwined with each other, increasing their cohesiveness and reinforcing each other, increasing the strength of the yarn as a whole, and significantly improving the operability in the twisting process. . In fact, 0.5 to 3
By simply blowing gas at a pressure of about Kg/ cm2 , the strength of the yarn increases to over 2.8g/d even after normal false twisting, which is 50% stronger than when no gas is blown. It becomes stronger by more than %. Yarn breakage during the yarn twisting process is also drastically reduced, and the operability and weaving efficiency of the yarn twisting are also significantly improved. Example 1 A polyester type U-section yarn 180d/48f was false-twisted under the conditions shown in the table, and the workability during false-twisting and the physical properties of the processed yarn were tested. The results are shown in the table.
【表】
実施例 ２
ポリエステルタイプのＵ断面糸90d／24fを表
の条件で仮撚し、仮撚時の操業性及び加工糸の物
性を試験した。その結果を表に示す。[Table] Example 2 Polyester type U-section yarn 90d/24f was false-twisted under the conditions shown in the table, and the workability during false-twisting and the physical properties of the processed yarn were tested. The results are shown in the table.
【表】【table】
【表】
発明の効果
本発明の方法では、Ｕ断面糸のような長手方向
に太さむらを有するフイラメント糸を、操業性よ
く仮撚でき、実用性ある強度の製品を得ることが
できる。また、撚糸工程で糸切れを生じたり、毛
羽を生じることも少ないので、製織性のよい製品
を得ることができる。[Table] Effects of the Invention In the method of the present invention, filament yarns having uneven thickness in the longitudinal direction, such as U-section yarns, can be false-twisted with good operability, and a product with a practical strength can be obtained. Furthermore, since yarn breakage and fluff are less likely to occur during the twisting process, a product with good weavability can be obtained.
Claims (1)
る特殊糸を仮撚するに当たつて、当該Ｕ断面糸
に、気体を吹きつけ、Ｕ断面糸を互いに交絡さ
せ、その後に仮撚加工することを特徴とする特殊
糸の仮撚方法。 ２ 0.5〜３Kg／cm2の圧力で気体を吹きつけてＵ
断面糸を交絡させる特許請求の範囲第１項記載の
方法。[Claims] 1. When false twisting a special yarn made of U-section yarns having uneven thickness in the longitudinal direction, gas is blown onto the U-section yarns to entangle the U-section yarns with each other, A method for false-twisting special yarn, which is characterized by performing a false-twisting process afterwards. 2 Blow gas at a pressure of 0.5 to 3 kg/cm 2 to
2. The method according to claim 1, wherein cross-sectional threads are entangled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14618385A JPS626924A (en) | 1985-07-02 | 1985-07-02 | False-twisting of special yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14618385A JPS626924A (en) | 1985-07-02 | 1985-07-02 | False-twisting of special yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS626924A JPS626924A (en) | 1987-01-13 |
| JPH0320495B2 true JPH0320495B2 (en) | 1991-03-19 |
Family
ID=15402012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14618385A Granted JPS626924A (en) | 1985-07-02 | 1985-07-02 | False-twisting of special yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS626924A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240647A (en) * | 1975-09-26 | 1977-03-29 | Mitsubishi Rayon Co | Crimping method |
| JPS57121606A (en) * | 1981-01-21 | 1982-07-29 | Kanebo Ltd | Production of u-shaped cross section yarn |
| JPS57121614A (en) * | 1981-01-21 | 1982-07-29 | Kanebo Ltd | Polyester special yarn and its production |
| JPS5976937A (en) * | 1982-10-22 | 1984-05-02 | 帝人株式会社 | Yarn processing |
-
1985
- 1985-07-02 JP JP14618385A patent/JPS626924A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240647A (en) * | 1975-09-26 | 1977-03-29 | Mitsubishi Rayon Co | Crimping method |
| JPS57121606A (en) * | 1981-01-21 | 1982-07-29 | Kanebo Ltd | Production of u-shaped cross section yarn |
| JPS57121614A (en) * | 1981-01-21 | 1982-07-29 | Kanebo Ltd | Polyester special yarn and its production |
| JPS5976937A (en) * | 1982-10-22 | 1984-05-02 | 帝人株式会社 | Yarn processing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS626924A (en) | 1987-01-13 |
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