JP6703663B1 - Polyester multifilament mixed yarn, fabric, method for producing polyester multifilament mixed yarn, and method for producing fabric - Google Patents

Polyester multifilament mixed yarn, fabric, method for producing polyester multifilament mixed yarn, and method for producing fabric Download PDF

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JP6703663B1
JP6703663B1 JP2019194837A JP2019194837A JP6703663B1 JP 6703663 B1 JP6703663 B1 JP 6703663B1 JP 2019194837 A JP2019194837 A JP 2019194837A JP 2019194837 A JP2019194837 A JP 2019194837A JP 6703663 B1 JP6703663 B1 JP 6703663B1
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yarn
fabric
polyester multifilament
yarns
false twisted
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JP2021066983A (en
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昭都史 市村
昭都史 市村
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MURASHO TEXTURED CO.,LTD.
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Priority to PCT/JP2020/040019 priority patent/WO2021085353A1/en
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Priority to CN202080005726.8A priority patent/CN113068404B/en
Priority to TW109137434A priority patent/TWI772944B/en
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/28—Heating or cooling arrangements for yarns
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/49—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads textured; curled; crimped
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/567—Shapes or effects upon shrinkage
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)

Abstract

【課題】天然繊維のような膨らみ感や柔らかさを出現させることができるポリエステルマルチフィラメント混繊糸、布帛、ポリエステルマルチフィラメント混繊糸の製造方法及び布帛の製造方法の提供。【解決手段】熱収縮率が異なる少なくとも２種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸１において、２種類のポリエステルマルチフィラメント糸が仮撚加工糸１０と部分延伸糸２０であり、両糸が乾熱収縮している。【効果】熱収縮により全体では大きく縮みながらも局所的には縮み量が異なる箇所が混在し、更に両糸が不均一に外部に露出する。混繊糸の長手方向における縮み量の違いに起因した染色度合いの不均一さと、両糸の配向度の違いに起因した染色度合いの不均一さとが合わさることで染色後の混繊糸の長手方向には不均一な杢感が形成され、布帛に天然繊維のような色合いや風合いを出現させられる。【選択図】図４PROBLEM TO BE SOLVED: To provide a polyester multi-filament mixed fiber, a fabric, a method for producing a polyester multi-filament mixed fiber, and a method for producing a fabric, which are capable of producing a bulging feeling and softness like natural fibers. SOLUTION: In a polyester multifilament mixed fiber 1 in which at least two types of polyester multifilament yarns having different heat shrinkage ratios are entangled, two types of polyester multifilament yarns are a false twist textured yarn 10 and a partially drawn yarn 20. Yes, both yarns have undergone dry heat shrinkage. [Effect] Although the whole shrinks largely due to heat shrinkage, locally different shrinkage amounts coexist, and both yarns are unevenly exposed to the outside. The unevenness of the degree of dyeing due to the difference in the shrinkage amount in the longitudinal direction of the mixed yarn and the unevenness of the degree of dyeing due to the difference in the orientation of both yarns combine to make the longitudinal direction of the mixed yarn after dyeing A non-uniform heather feeling is formed on the fabric, which allows the fabric to have a hue and texture similar to those of natural fibers. [Selection diagram] Fig. 4

Description

本発明は、天然繊維のような膨らみ感や柔らかさを出現させることができるポリエステルマルチフィラメント混繊糸、布帛、ポリエステルマルチフィラメント混繊糸の製造方法及び布帛の製造方法に関する。 The present invention relates to a polyester multi-filament mixed fiber, a fabric, a method for producing a polyester multi-filament mixed fiber, and a method for producing a fabric, which are capable of exhibiting a bulging feeling and softness like natural fibers.

合成繊維の長繊維の紡糸はポリエチレンテレフタレート（PET）を原料とする溶融紡糸が一般的である。
紡糸工程で作られる糸は引き取り速度の違いや延伸の有無等により延伸糸(又は配向糸 Fully Drawn Yarn :FDY)、部分延伸糸(又は部分配向糸 Partially Oriented Yarn : POY)、未延伸糸(Undrawn Yarn : UDY)に分けられる。
紡糸工程において延伸糸及び部分延伸糸はPETを多数の微細な孔が空いた紡糸口金から押し出し、冷却器で冷却することで多数のフィラメントを形成し、これを複数のローラで引き取り、延伸しながら巻取機で巻き取ることでマルチフィラメントと呼ばれる１本の糸に成形される。 Melt spinning using polyethylene terephthalate (PET) as a raw material is generally used for spinning long fibers of synthetic fibers.
The yarn produced in the spinning process is drawn yarn (or oriented yarn Fully Drawn Yarn :FDY), partially drawn yarn (or partially oriented yarn Partially Oriented Yarn :POY), undrawn yarn (Undrawn yarn) Yarn: UDY).
In the spinning process, stretched yarn and partially stretched yarn are produced by extruding PET from a spinneret with many fine holes and cooling it with a cooler to form many filaments, which are drawn by multiple rollers and stretched. By winding with a winder, it is formed into one yarn called multifilament.

延伸糸はフィラメントを十分に延伸させるが、部分延伸糸はフィラメントの性状が安定する程度に延伸を留めておく。「フィラメントの性状が安定する」とは搬送時等に加わる弱い外力や環境変化では糸の物性が変化しない（糸が伸びたり変形したりしない）程度に安定した状態であることを指す。
延伸糸は紡糸工程で延伸及び熱処理を行ってフィラメントの性状を十分に安定させるため織りや編みに直接使用することができる。部分延伸糸は紡糸後の加工でフィラメントの性状を変化させて使用する。
未延伸糸は紡糸工程において延伸を行わずに成形した糸であり、部分延伸糸と同様に紡糸後の加工でフィラメントの性状を変化させて使用する。
紡糸後の加工で仮撚加工された糸を得る方法としては、延伸糸に仮撚加工を施すことで仮撚加工糸（Textured Yarn : TY）とする方法や、部分延伸糸に延伸仮撚加工を施すことで延伸・仮撚加工糸（Draw Textured Yarn : DTY）とする方法がある。 The stretched yarn sufficiently stretches the filament, but the partially stretched yarn is stretched until the properties of the filament are stabilized. "The filament properties are stable" means that the physical properties of the yarn are not changed (the yarn is not stretched or deformed) by a weak external force applied during transportation or environmental changes.
The drawn yarn can be directly used for weaving or knitting in order to sufficiently stabilize the properties of the filament by performing drawing and heat treatment in the spinning process. The partially drawn yarn is used by changing the properties of the filament after the spinning process.
The undrawn yarn is a yarn formed without being drawn in the spinning process, and is used by changing the properties of the filament in the processing after spinning in the same manner as the partially drawn yarn.
As a method for obtaining a false twisted yarn by the processing after spinning, a false twisted yarn (Textured Yarn: TY) is obtained by subjecting a drawn yarn to a false twisting process, or a partially drawn yarn is drawn false twisting process. There is a method of forming drawn and false-twisted yarn (Draw Textured Yarn: DTY) by applying.

ポリエステル長繊維を仮撚加工して得られるポリエステル仮撚加工糸は嵩高で捲縮性に優れており天然繊維に似た風合い・色合いを出現させることができる。ポリエステル仮撚加工糸の風合い等を高めるための技術として異形断面技術、異収縮混繊技術、異繊度混繊技術等が知られている。
例えば特許文献1には、マルチフィラメント糸から成る第1の糸を仮撚加工する際の延伸率及びヒーター温度と、マルチフィラメント糸から成る第2の糸を仮撚加工する際の延伸率及びヒーター温度をそれぞれ異なる値に設定し、各々を仮撚加工した後に合糸して特殊仮撚加工糸を製造する技術が開示されている。各糸の伸縮度や捲縮度に差が生じて長手方向に不均一なムラを発現できるので、同じ色に染色した場合でも不均一で自然なゆらぎ調の色合いに染色できる。
特許文献2には、ポリトリメチレンテレフタレート(PTT)からなる仮撚捲縮を有しないフィラメントと、ポリエステルからなる仮撚捲縮を有するフィラメントの少なくとも2種が交絡して成る混繊糸が開示されている。ポリトリメチレンテレフタレートはポリエステルと比較して風合いが柔らかくストレッチ性が高いことに特徴を持っており、ポリエステルの仮撚加工糸と混繊することでバルキー性、ソフトな風合いならびにストレッチ性を付与することができる。
特許文献3には、ポリエステルマルチフィラメント仮撚加工糸と、仮撚捲縮を有しないポリエステルマルチフィラメント糸（延伸糸）とを含み、沸水収縮率において後者のほうが前者よりも5％以上大きい混繊糸が開示されている。仮撚加工糸は個々のフィラメントが捲縮を有しており微少区間において平行に配列されない状態になっている。仮撚加工糸と沸水収縮率の高い延伸糸を混繊することで仮撚加工糸を混繊糸の鞘糸、延伸糸を芯糸とし、染色加工時の熱履歴による異収縮効果を利用して、捲縮を有する個々のフィラメントを混繊糸の表面に浮き出させるので繊細なソフトタッチを得られる。 The false-twisted polyester yarn obtained by false-twisting polyester long fibers is bulky and has excellent crimpability, and can have a texture and color resembling natural fibers. As a technique for improving the texture of the polyester false twisted yarn, a modified cross-section technique, a different shrinkage mixed fiber technique, a different fineness mixed fiber technique, etc. are known.
For example, in Patent Document 1, a draw ratio and a heater temperature when false-twisting a first yarn made of a multifilament yarn, and a draw ratio and a heater when false-twisting a second yarn made of a multifilament yarn are provided. A technique is disclosed in which the temperatures are set to different values, the false twisting is performed on each of them, and then the yarns are combined to produce a special false twisted yarn. Since differences in the degree of expansion and contraction and the degree of crimp of each yarn can occur and uneven unevenness can be expressed in the longitudinal direction, even when dyed with the same color, it is possible to dye with a non-uniform and natural shading tone.
Patent Document 2 discloses a mixed fiber yarn in which at least two types of filaments having no false twist crimps made of polytrimethylene terephthalate (PTT) and filaments having false twist crimps made of polyester are entangled. ing. Polytrimethylene terephthalate is characterized by having a softer texture and higher stretchability than polyester, and by blending it with polyester false twisted yarn, it imparts bulkiness, soft texture and stretchability. You can
Patent Document 3 contains a polyester multifilament false twisted yarn and a polyester multifilament yarn having no false twist crimp (drawn yarn), and the latter has a boiling water shrinkage ratio of 5% or more larger than the former. Threads are disclosed. In the false twisted yarn, individual filaments have crimps and are not arranged in parallel in a minute section. By mixing the false twisted yarn and the drawn yarn having a high boiling water shrinkage ratio, the false twisted yarn is used as the mixed yarn sheath yarn and the drawn yarn as the core yarn, and the different shrinkage effect due to the heat history during dyeing is used. As a result, individual crimped filaments are raised on the surface of the mixed fiber, so that a delicate soft touch can be obtained.

特開2016−216869号公報JP 2016-216869 JP 特開2002−20936号公報JP 2002-20936 特開平7−102436号公報JP-A-7-102436

しかし、上記特許文献の技術では次のような問題がある。
特許文献1及び2の技術では風合いが仮撚加工糸と同等にとどまり、天然繊維特有の膨らみ感や柔らかさを充分に表現することができないという問題がある。
特許文献3では延伸糸が芯糸として糸の中に入って外から見えにくくなることから天然繊維特有の長手方向の不均一なムラ感を表現できない。また仮撚加工糸を外に膨らませてよりソフトなタッチを現出しているが、天然繊維のような膨らみ感や柔らかさを表現することができないという問題がある。 However, the technique of the above patent document has the following problems.
The techniques of Patent Documents 1 and 2 have the problem that the texture remains the same as that of the false twisted yarn, and the swelling feeling and softness peculiar to natural fibers cannot be sufficiently expressed.
In Patent Document 3, the stretched yarn enters the yarn as a core yarn and becomes difficult to see from the outside, and therefore, the unevenness in the longitudinal direction, which is peculiar to natural fibers, cannot be expressed. Further, although the false twisted yarn is expanded to the outside to provide a softer touch, there is a problem that it is not possible to express the bulging feeling and softness of natural fibers.

本発明は、上記のような問題を考慮して、天然繊維のような膨らみ感や柔らかさを出現させることができるポリエステルマルチフィラメント混繊糸、布帛、ポリエステルマルチフィラメント混繊糸の製造方法及び布帛の製造方法を提供することを課題とする。 In view of the above problems, the present invention provides a polyester multi-filament mixed fiber, a fabric, a method for producing a polyester multi-filament mixed fiber, and a fabric, which can bring out the bulging feeling and softness like natural fibers. It is an object of the present invention to provide a manufacturing method of.

本発明のポリエステルマルチフィラメント混繊糸は、熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸において、前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、前記仮撚加工糸と前記部分延伸糸が乾熱収縮していることを特徴とする。
本発明の布帛は、上記ポリエステルマルチフィラメント混繊糸を含むことを特徴とする。
本発明のポリエステルマルチフィラメント混繊糸の製造方法は、熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸の製造方法において、前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、前記仮撚加工糸と前記部分延伸糸とを交絡させるステップと、交絡させた前記仮撚加工糸と前記部分延伸糸に対してヒーターの乾熱による熱処理を施すステップとを備えることを特徴とする。
また、前記乾熱による熱処理を施す際の前記ヒーターの出口直後の前記仮撚加工糸と前記部分延伸糸の温度が130℃以上であることを特徴とする。
本発明の布帛の製造方法は、熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸を用いた布帛の製造方法において、前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、前記仮撚加工糸と前記部分延伸糸とを交絡させるステップと、交絡させた前記仮撚加工糸と前記部分延伸糸に対してヒーターの乾熱による熱処理を施してポリエステルマルチフィラメント混繊糸を得るステップと、前記ポリエステルマルチフィラメント混繊糸を織編物に加工するステップを備えることを特徴とする。
また、前記乾熱による熱処理を施す際の前記ヒーターの出口直後の前記仮撚加工糸と前記部分延伸糸の温度が130℃以上であることを特徴とする。 The polyester multifilament mixed yarn of the present invention is a polyester multifilament mixed yarn in which at least two types of polyester multifilament yarns having different heat shrinkage ratios are entangled, and the two types of polyester multifilament yarns are false twisted yarns. And partially drawn yarn, wherein the false twisted yarn and the partially drawn yarn are shrinked by dry heat.
The cloth of the present invention is characterized by containing the polyester multifilament mixed fiber.
The method for producing a polyester multifilament mixed yarn according to the present invention is a method for producing a polyester multifilament mixed yarn in which at least two types of polyester multifilament yarns having different heat shrinkage ratios are entangled with each other. The yarn is a false twisted yarn and a partially drawn yarn, and the step of entanglement of the false twisted yarn and the partially drawn yarn, and the dry heat of a heater for the entangled false twisted yarn and the partially drawn yarn And a step of performing heat treatment according to.
Further, the temperature of the false twisted yarn and the partially drawn yarn immediately after the exit of the heater during the heat treatment by dry heat is 130° C. or higher.
The method for producing a fabric of the present invention is a method for producing a fabric using a polyester multifilament mixed fiber yarn in which at least two types of polyester multifilament yarns having different heat shrinkage ratios are entangled with each other. Is a false twisted textured yarn and a partially drawn yarn, and the step of interlacing the false twisted textured yarn and the partially drawn yarn, by the dry heat of a heater for the entangled false twisted textured yarn and the partially drawn yarn The method is characterized by including a step of heat-treating to obtain a polyester multifilament mixed yarn, and a step of processing the polyester multifilament mixed yarn into a woven or knitted fabric.
Further, the temperature of the false twisted yarn and the partially drawn yarn immediately after the exit of the heater during the heat treatment by dry heat is 130° C. or higher.

本発明のポリエステルマルチフィラメント混繊糸は熱収縮により全体では大きく縮みながらも局所的には縮み量が異なる箇所が混在し、更に部分延伸糸と仮撚加工糸が不均一に外部に露出した状態になっている。また、部分延伸糸は交絡度が大きい箇所は乾熱による熱が届きにくく、交絡度が小さい箇所は乾熱による熱が届きやすいので長手方向に熱履歴が異なる箇所が混在した状態になっている。乾熱による熱処理を施した後の混繊糸を布帛に加工して染色すると、部分延伸糸は沸水収縮により全体として収縮するが、熱履歴の差異に応じて相対的に大きく収縮する箇所と小さく収縮する箇所が生じる。また、部分延伸糸は低配向で非結晶部が多いため染まり易く、仮撚加工糸は高配向で非結晶部が少ないために染まりにくい。このように混繊糸の長手方向における縮み量の違いに起因した染色度合いの不均一さと、部分延伸糸と仮撚加工糸の配向度の違いに起因した染色度合いの不均一さとが合わさることで染色後の混繊糸の長手方向には不均一な杢感が形成され、布帛に天然繊維のような色合いや風合いを出現させることができる。
また、乾熱による熱処理を施す際のヒーターの出口直後の仮撚加工糸と部分延伸糸の温度を130℃以上にすると糸の表面が変化し始めて細かい杢感が出現し始め、140℃以上になるにつれてぼやけた流れ杢に変わり、より天然繊維のような色合いや風合いを出現させることができる。また、140℃以上になるにつれて布帛の膨らみが増しており、より天然繊維のような膨らみ感や柔らかさを出現させることができる。

The polyester multi-filament mixed filament yarn of the present invention shrinks largely due to heat shrinkage, but locally shrinks in different amounts, and the partially drawn yarn and false twisted yarn are unevenly exposed to the outside. It has become. Further, in the partially drawn yarn, the heat due to dry heat is hard to reach at a portion with a high degree of entanglement, and the heat due to dry heat is easy to reach at a location with a low degree of entanglement, so that portions having different heat histories in the longitudinal direction are mixed. .. When the mixed fiber yarn after being subjected to heat treatment by dry heat is processed into a fabric and dyed, the partially drawn yarn shrinks as a whole due to shrinkage of boiling water, but it shrinks relatively greatly depending on the difference in heat history There is a point of contraction. In addition, the partially drawn yarn is low in orientation and has many non-crystalline portions, so that it is easily dyed, and the false twisted yarn is highly oriented and has few non-crystalline portions, so that it is difficult to be dyed. In this way, the unevenness of the dyeing degree due to the difference in the shrinkage amount in the longitudinal direction of the mixed fiber and the unevenness of the dyeing degree due to the difference in the orientation degree of the partially drawn yarn and the false twisted yarn are combined. A non-uniform heather feeling is formed in the longitudinal direction of the mixed yarn after dyeing, and the fabric can have a color tone and a texture like natural fibers.
When the temperature of the false twisted yarn and the partially drawn yarn immediately after the outlet of the heater during the heat treatment by dry heat is set to 130°C or higher, the surface of the yarn begins to change and a fine feeling of heat begins to appear, and the temperature becomes 140°C or higher. As it becomes, it becomes a blurry heather, and it is possible to make the color and texture more like natural fibers appear. Further, as the temperature rises above 140° C., the swelling of the fabric increases, and the swelling feeling and softness more like natural fibers can appear.

交絡前の仮撚加工糸と部分延伸糸を模式的に示す図The figure which shows typically the false twist textured yarn and the partially drawn yarn before entanglement. 仮撚加工の工程図Process diagram for false twisting 仮撚加工糸と部分延伸糸を交絡させる前の図(a)及び交絡させた後の図(b)Figure before twisting the false twisted yarn and partially drawn yarn (a) and after twisting (b) ポリエステルマルチフィラメント混繊糸の製造方法を概念的に示す図The figure which shows notionally the manufacturing method of the polyester multi-filament mixed yarn 単体の仮撚加工糸に対して乾熱による熱処理を施す前と後の図(a)及び単体の部分延伸糸に対して乾熱による熱処理を施す前と後の図(b)Figure (a) before and after dry heat treatment of a single false twisted yarn and before and after dry heat treatment of a single partially drawn yarn (b) 仮撚加工糸と部分延伸糸を交絡させた状態で乾熱による熱処理を施す前と後の図Diagram before and after heat treatment by dry heat with false twisted yarn and partially drawn yarn entangled 実施例の染色後の布帛を示す写真Photograph showing the fabric after dyeing of the example

本発明のポリエステルマルチフィラメント混繊糸の実施の形態について説明する。なお、以下の説明においてポリエステルマルチフィラメント混繊糸を単に「混繊糸」と表記する場合がある。
混繊糸は熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るものであり、図1に示すように1種類のポリエステルマルチフィラメント糸が仮撚加工糸10であり、他の1種類のポリエステルマルチフィラメント糸が部分延伸糸20である。詳細は後述するが仮撚加工糸10と部分延伸糸20は交絡後に乾熱処理されることで収縮して混繊糸1になる。 An embodiment of the polyester multifilament mixed fiber of the present invention will be described. In the following description, the polyester multi-filament mixed fiber may be simply referred to as “mixed fiber”.
The mixed yarn is formed by interlacing at least two types of polyester multifilament yarns having different heat shrinkage rates, and one type of polyester multifilament yarn is false twisted yarn 10 as shown in FIG. One type of polyester multifilament yarn is the partially drawn yarn 20. Although the details will be described later, the false twisted yarn 10 and the partially drawn yarn 20 are contracted by the dry heat treatment after the entanglement to become the mixed fiber 1.

図2の仮撚加工の工程図に示すとおり、仮撚加工糸（Textured Yarn : TY）は未延伸糸(Undrawn Yarn : UDY)を延伸して成る延伸糸(Fully Drawn Yarn :FDY)に仮撚加工を施したものである。仮撚加工は延伸糸に加撚した状態で熱を加えることで一旦撚りを固定し(熱固定)、その後に解撚する。仮撚加工糸はS撚仮撚加工糸とZ撚仮撚加工糸のいずれでもよく、また、S撚仮撚加工糸とZ撚仮撚加工糸を合糸したノントルク仮撚加工糸でもよい。
本発明の混繊糸で使用する仮撚加工糸10としては延伸糸に仮撚加工を施した仮撚加工糸と、部分延伸糸(Partially Oriented Yarn : POY)に延伸仮撚加工を施した延伸・仮撚加工糸（Draw Textured Yarn : DTY）のいずれでもよい。 As shown in the process diagram for false twisting in Fig. 2, the false twisted textured yarn (Textured Yarn: TY) is a false twisted yarn (Fully Drawn Yarn: FDY) formed by stretching an undrawn yarn (UDY). It has been processed. In the false twisting process, heat is applied to the drawn yarn in a twisted state to temporarily fix the twist (heat setting), and then untwist. The false twisted textured yarn may be either an S twist false twisted textured yarn or a Z twist false twisted textured yarn, or a non-torque false twisted textured yarn obtained by combining an S twist false twisted textured yarn and a Z twist false twisted textured yarn.
The false twist textured yarn 10 used in the mixed yarn of the present invention is a false twist textured yarn obtained by subjecting a drawn yarn to a false twist texture, and a partially stretched yarn (Partially Oriented Yarn: POY) subjected to a stretch false texture texture.・Any of false twisted yarn (Draw Textured Yarn: DTY) may be used.

部分延伸糸20は上述の通り溶融紡糸の際にフィラメントの性状が安定する程度に延伸を留めた糸であり、紡糸後の加工によってその性状は大きく変化する。 As described above, the partially stretched yarn 20 is a yarn that has been stretched to such an extent that the properties of the filament are stable during melt spinning, and its properties change significantly depending on the processing after spinning.

次に、ポリエステルマルチフィラメント混繊糸1の製造方法について説明する。
まず、図3(a)及び(b)に示すように仮撚加工糸10と部分延伸糸20を交絡させる。交絡の手順としては例えば図4(a)に示すように一方の給糸パッケージ100から引き出した延伸糸30をローラ101、仮撚ヒーター102、仮撚具103、引取りローラ104を介して仮撚加工することで仮撚加工糸10にすると同時に、他方の給糸パッケージ105から部分延伸糸20を引き出し、両糸10,20を交絡ノズル106から噴出する圧縮空気で交絡させる方法が挙げられる。他には例えば図4(b)に示すように予め別工程で仮撚加工糸10を製造し、これを給糸パッケージ107に格納しておき、この給糸パッケージ107から引き出した仮撚加工糸10と、他方の給糸パッケージ108から引き出した部分延伸糸20を交絡ノズル106で交絡させる方法が挙げられる。圧縮空気を吹き付けることで仮撚加工糸10と部分延伸糸20のフィラメント同士が複雑に絡まり合う。
次に、交絡させた仮撚加工糸10と部分延伸糸20に対して周知のヒーター109を用いて乾熱による熱処理を施すことで乾熱収縮させる。
乾熱は沸水と比較して温度幅を広くすることができるので糸の熱履歴を調整し易いというメリットがある。熱処理後の混繊糸1は巻取りローラ110を介して巻取りパッケージ111に巻き取る。 Next, a method for manufacturing the polyester multifilament mixed fiber 1 will be described.
First, as shown in FIGS. 3(a) and 3(b), the false twist textured yarn 10 and the partially drawn yarn 20 are entangled. As the procedure of entanglement, for example, as shown in FIG. 4(a), the drawn yarn 30 drawn from one yarn supply package 100 is false twisted through a roller 101, a false twist heater 102, a false twist tool 103, and a take-up roller 104. There is a method in which the false twist textured yarn 10 is processed and at the same time the partially drawn yarn 20 is drawn out from the other yarn supply package 105 and the yarns 10 and 20 are entangled with compressed air ejected from the entanglement nozzle 106. In addition, for example, as shown in FIG. 4(b), the false twisted yarn 10 is manufactured in a separate process in advance, stored in the yarn supplying package 107, and the false twisted yarn drawn out from the yarn supplying package 107. There is a method in which the entanglement nozzle 106 entangles 10 with the partially drawn yarn 20 drawn from the other yarn supply package 108. By blowing the compressed air, the filaments of the false twist textured yarn 10 and the partially drawn yarn 20 are intricately entangled with each other.
Next, the entangled false twisted yarn 10 and the partially drawn yarn 20 are subjected to heat treatment by dry heat using a well-known heater 109 to shrink dry heat.
Dry heat can have a wider temperature range than boiling water, and therefore has an advantage that the heat history of the yarn can be easily adjusted. The heat-treated mixed fiber 1 is wound on the winding package 111 via the winding roller 110.

上述の通り仮撚加工糸10は延伸糸30を加撚した状態で熱を加えて一旦撚りを固定する熱固定を行っている。したがって、図5(a)に示すように仮に単独の仮撚加工糸10に対して乾熱による熱処理を施しても、仮撚加工糸10は長手方向にほとんど熱収縮せず、変形しない。一方、部分延伸糸20はフィラメントの性状が安定する程度に延伸を留めている。したがって、図5(b)に示すように単独の部分延伸糸20に対して乾熱による熱処理を施した場合、全体的に長手方向に大きく収縮する。 As described above, the false twisted yarn 10 is heat-fixed to temporarily fix the twist by applying heat while the drawn yarn 30 is twisted. Therefore, as shown in FIG. 5(a), even if a single false twisted yarn 10 is heat-treated by dry heat, the false twisted yarn 10 is hardly thermally shrunk in the longitudinal direction and is not deformed. On the other hand, the partially stretched yarn 20 is stretched to such an extent that the filament properties are stable. Therefore, as shown in FIG. 5(b), when a single partially drawn yarn 20 is heat-treated by dry heat, it is largely shrunk in the longitudinal direction as a whole.

図6に一本の部分延伸糸20と一本の仮撚加工糸10を交絡させ、乾熱で熱収縮させた状態を示す。熱収縮させる前は部分延伸糸20が芯糸、仮撚加工糸10が鞘糸となり、交絡度が相対的に大きい箇所Aと小さい箇所Bとが混在した芯鞘構造になっている。この状態で乾熱による熱処理を施すと次に述べる2つの効果が生じる。
1つ目の効果は、交絡度が大きい箇所Aでは部分延伸糸20の熱収縮をその周囲に絡まっている仮撚加工糸10が妨げるので結果として相対的にあまり収縮せず（符号A'の範囲）、反対に交絡度が小さい箇所Bでは部分延伸糸20の熱収縮はその周囲に絡まっている仮撚加工糸10の影響を受けにくいので相対的に大きく収縮する（符号B'の範囲）という効果である。
2つ目の効果は、交絡度が大きい箇所Aでは鞘糸となる仮撚加工糸10が多く表面に露出しており、芯糸となる部分延伸糸20は仮撚加工糸10によって内部に隠された状態になっている。したがって乾熱による熱が内部の部分延伸糸20まで届きにくく、結果として相対的にあまり収縮せず（符号A'の範囲）、反対に交絡度が小さい箇所Bでは芯糸となる部分延伸糸20の一部が外部に露出した状態であり、乾熱による熱が部分延伸糸20まで届きやすいので結果として相対的に大きく収縮する（符号B'の範囲）という効果である。
このような2つの異収縮効果によって交絡度が相対的に大きい箇所Aと比較して交絡度が相対的に小さい箇所Bが大きく収縮して嵩高性が増す。乾熱による熱処理が終了した状態の混繊糸を見ると交絡が解けた箇所が多く存在し、芯鞘構造になっておらず、部分延伸糸20と仮撚加工糸10の両者が不均一に外部に露出した状態になっている。 FIG. 6 shows a state in which one partially drawn yarn 20 and one false twisted yarn 10 are entangled and heat-shrinked by dry heat. Before heat shrinking, the partially drawn yarn 20 is a core yarn and the false twisted yarn 10 is a sheath yarn, and has a core-sheath structure in which a portion A and a portion B where the degree of entanglement is relatively large are mixed. When heat treatment by dry heat is performed in this state, the following two effects occur.
The first effect is that at the portion A where the degree of entanglement is large, the heat shrinkage of the partially drawn yarn 20 is hindered by the false twisted yarn 10 which is entangled around it, and as a result, the yarn does not shrink relatively much (symbol A' Range), conversely, at the portion B where the degree of entanglement is small, the heat shrinkage of the partially drawn yarn 20 is less affected by the false twisted yarn 10 which is entangled in the periphery thereof, and thus the shrinkage is relatively large (range B'). That is the effect.
The second effect is that in the area A where the degree of entanglement is large, a large amount of false twisted yarn 10 that is a sheath yarn is exposed on the surface, and the partially drawn yarn 20 that is a core yarn is hidden inside by the false twisted yarn 10. It is in the state of being Therefore, the heat generated by dry heat does not easily reach the internal partially drawn yarn 20, and as a result, does not relatively shrink (range A'), and conversely, at the portion B where the degree of entanglement is small, the partially drawn yarn 20 becomes a core yarn. Is partially exposed to the outside, and heat due to dry heat easily reaches the partially drawn yarn 20, resulting in relatively large shrinkage (range B').
Due to these two different contraction effects, the portion B having a relatively small degree of entanglement is greatly contracted as compared with the portion A having a relatively high degree of entanglement, and bulkiness is increased. Looking at the mixed fiber yarn in the state where the heat treatment by dry heat is completed, there are many places where the entanglement has been broken, the core-sheath structure is not formed, and both the partially drawn yarn 20 and the false twisted yarn 10 become uneven. It is exposed to the outside.

このように一本の混繊糸1全体では大きく縮みながらも局所的には縮み量が異なる箇所が混在し、更に部分延伸糸20と仮撚加工糸10が不均一に外部に露出した状態になっている。また、上述のとおり部分延伸糸20は交絡度が大きい箇所Aは乾熱による熱が届きにくく、交絡度が小さい箇所Bは乾熱による熱が届きやすいので熱収縮後は長手方向に熱履歴が異なる箇所が混在した状態になっている。
乾熱による熱処理を施した後の混繊糸を布帛に加工して染色すると、部分延伸糸20は沸水収縮により全体として収縮するが、熱履歴の差異に応じて相対的に大きく収縮する箇所と小さく収縮する箇所が生じる。また、部分延伸糸20は低配向で非結晶部が多いため染まり易く、仮撚加工糸10は高配向で非結晶部が少ないために染まりにくい。このように混繊糸1の長手方向における縮み量の違いに起因した染色度合いの不均一さと、部分延伸糸20と仮撚加工糸10の配向度の違いに起因した染色度合いの不均一さとが合わさることで染色後の混繊糸1の長手方向には不均一な杢感が形成され、布帛に天然繊維のような色合いや風合いを出現させることができる。また、布帛に凹凸感が生まれ、ウールや綿などの天然繊維のような膨らみ感や柔らかさを出現させることができる。
布帛としては織物、編み物のいずれの場合も目が粗いほうが好ましい。目が粗いほうが沸水収縮の際に部分延伸糸20が収縮しやすい（動きやすい）ので杢感をより不均一に生じさせることができるからである。 In this way, the one mixed fiber 1 as a whole is shrunk greatly, but there are locally mixed shrinkage amounts, and the partially drawn yarn 20 and the false twisted yarn 10 are unevenly exposed to the outside. Is becoming Further, as described above, in the partially drawn yarn 20, the heat A due to the dry heat is hard to reach the portion A where the degree of entanglement is high, and the heat B due to the dry heat is apt to reach the point B where the degree of the entanglement is low. Different parts are mixed.
When the mixed fiber yarn after being subjected to heat treatment by dry heat is processed into a fabric and dyed, the partially drawn yarn 20 shrinks as a whole due to shrinkage of boiling water, but a portion that shrinks relatively greatly depending on the difference in heat history. There are small shrinkage points. Further, the partially drawn yarn 20 is low in orientation and has many non-crystalline portions, so that it is easily dyed, and the false twist textured yarn 10 is highly oriented and has few non-crystalline portions, so that it is difficult to be dyed. As described above, there is unevenness in the degree of dyeing due to the difference in the shrinkage amount in the longitudinal direction of the mixed fiber 1 and unevenness in the degree of dyeing due to the difference in the degree of orientation between the partially drawn yarn 20 and the false twisted yarn 10. By combining them, a non-uniform heather feeling is formed in the longitudinal direction of the mixed fiber 1 after dyeing, so that the cloth can have a color and texture like natural fibers. In addition, the fabric is made uneven, and the swelling and softness of natural fibers such as wool and cotton can be exhibited.
It is preferable that the cloth has coarse mesh in both woven and knitted fabrics. This is because the coarser the mesh, the more the partially stretched yarn 20 is likely to shrink (move easily) during the boiling water shrinkage, so that the loose feeling can be caused more unevenly.

本発明の布帛の製造方法において、乾熱による熱処理を行う際のヒーター(2NDヒーター)の温度条件を変化させて染色後の布帛の変化の程度を調査した。
＜加工条件＞
使用原糸： POY SD83d/36f
加工糸： SD125d/72f
機種：TMT製 ATF1500
糸速： 600m/min
DR（ドラフト）：1.690
ディスク： 1-6-1
撚方向：Z撚
1ST ヒーター温度（2ゾーン）： 400℃−250℃
インターレース圧力：1.5kg/cm2
インターレースノズル：ベバーライン P212
ノズルOF（オーバーフィード）： 2%
2NDヒーター温度：条件振り (350℃、400℃、450℃、500℃）
2NDヒーターOF： 4%
＜結果＞
図7に示すように、染色後の布帛に不均一な杢感が形成され、天然繊維のような色合いや風合いが出現していることが確認できた。また、布帛に凹凸感が生まれ、ウールや綿などの天然繊維のような膨らみ感や柔らかさが出現していることが確認できた。特に、2NDヒーターの温度が350℃で糸の表面が変化し始めて細かい杢感が出現し始め、400℃以上になるにつれてぼやけた流れ杢に変わってきており、より天然繊維のような色合いや風合いが出現していることが確認できた。また、400℃以上になるにつれて布帛の膨らみが増しており、より天然繊維のような膨らみ感や柔らかさが出現していることが確認できた。以上から、乾熱による熱処理を行う際のヒーター(2NDヒーター)の温度条件は350℃以上が好ましく、特に400℃以上が好ましいことが分かった。上限値は布帛に溶融等の不具合が生じない範囲でできるだけ高温が好ましい。本実施例では2NDヒーターの温度が500℃でも天然繊維のような色合いや風合、膨らみ感や柔らかさが出現していることが確認できた。
ヒーターの設定温度とヒーターの出口直後の糸の温度の間には差が生じる。上記の加工条件においてヒーターの設定温度とヒーターの出口直後の糸の温度を調べたところ以下の表１の対応関係にあることが判明した。

Figure 0006703663
上述の通り乾熱による熱処理を施す際のヒーターの設定温度は350℃以上が好ましく、特に400℃以上が好ましい。これに対応してヒーターの出口直後の糸の温度は130℃以上が好ましく、特に140℃以上が好ましいことが分かった。
ヒーターの出口直後の糸の温度は一般的な接触式温度計測器（例えば、安立計器（株）製 HD−1100K)を使用すれば測定できる。 In the fabric manufacturing method of the present invention, the degree of change of the fabric after dyeing was investigated by changing the temperature condition of the heater (2ND heater) during the heat treatment by dry heat.
<Processing conditions>
Raw yarn used: POY SD83d/36f
Processed yarn: SD125d/72f
Model: TMT ATF1500
Thread speed: 600m/min
DR (draft): 1.690
Disc: 1-6-1
Twisting direction: Z twist
1ST heater temperature (2 zones): 400℃-250℃
Interlace pressure: 1.5kg/cm2
Interlace nozzle: Beaver Line P212
Nozzle OF (overfeed): 2%
2ND heater temperature: Condition swing (350℃, 400℃, 450℃, 500℃)
2ND heater OF: 4%
<Results>
As shown in FIG. 7, it was confirmed that a non-uniform heather feeling was formed on the dyed fabric, and that the hue and texture like natural fibers appeared. Also, it was confirmed that the fabric had an unevenness appearance, and the bulge and softness of natural fibers such as wool and cotton appeared. In particular, when the temperature of the 2ND heater is 350°C, the surface of the yarn starts to change and a fine heathered feeling begins to appear, and as it rises to 400°C or higher, it becomes a blurred heather, and it has a more natural fiber-like color and texture. Was confirmed to have appeared. Further, it was confirmed that the swelling of the fabric increased as the temperature became 400° C. or higher, and the swelling feeling and softness like natural fibers appeared. From the above, it was found that the temperature condition of the heater (2ND heater) when performing the heat treatment by dry heat is preferably 350° C. or higher, and particularly preferably 400° C. or higher. The upper limit is preferably as high as possible within the range that does not cause defects such as melting of the cloth. In this example, it was confirmed that even if the temperature of the 2ND heater was 500° C., the hue, texture, swelling and softness similar to those of natural fibers appeared.
There is a difference between the set temperature of the heater and the temperature of the yarn immediately after the outlet of the heater. When the set temperature of the heater and the temperature of the yarn immediately after the outlet of the heater were examined under the above-mentioned processing conditions, it was found that they had the correspondence relationship shown in Table 1 below.
Figure 0006703663
 As described above, the set temperature of the heater when performing the heat treatment by dry heat is preferably 350°C or higher, and particularly preferably 400°C or higher. Correspondingly, it has been found that the temperature of the yarn immediately after the outlet of the heater is preferably 130°C or higher, particularly 140°C or higher.
The temperature of the yarn immediately after the outlet of the heater can be measured by using a general contact temperature measuring device (for example, HD-1100K manufactured by Anritsu Keiki Co., Ltd.).

本発明は、天然繊維のような膨らみ感や柔らかさを出現させることができるポリエステルマルチフィラメント混繊糸、布帛、ポリエステルマルチフィラメント混繊糸の製造方法及び布帛の製造方法であり、産業上の利用可能性を有する。 The present invention is a polyester multifilament mixed fiber, a fabric, a method for producing a polyester multifilament mixed fiber, and a method for producing a fabric, which are capable of exhibiting a bulging feeling and softness like natural fibers. Have the potential.

A 交絡度が相対的に大きい箇所
A' Aの熱収縮後の範囲
B 交絡度が相対的に小さい箇所
B' Bの熱収縮後の範囲
1 ポリエステルマルチフィラメント混繊糸
10 仮撚加工糸
20 部分延伸糸
30 延伸糸
100 給糸パッケージ
101 ローラ
102 仮撚ヒーター
103 仮撚具
104 引取りローラ
105 給糸パッケージ
106 交絡ノズル
107 給糸パッケージ
108 給糸パッケージ
109 ヒーター
110 巻取りローラ
111 巻取りパッケージ

A places where the degree of entanglement is relatively large
Range after heat shrinkage of A'A
B Where the degree of entanglement is relatively small
B'B range after heat shrink
1 Polyester multifilament mixed yarn
10 False twisted yarn
20 partially drawn yarn
30 drawn yarn
100 yarn feeding package
101 Laura
102 False twist heater
103 False twist tool
104 take-up roller
105 yarn feeding package
106 Entangling nozzle
107 yarn feeding package
108 yarn feeding package
109 heater
110 winding roller
111 winding package

Claims (6)

熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸において、
前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、
前記仮撚加工糸と前記部分延伸糸が乾熱収縮していることを特徴とするポリエステルマルチフィラメント混繊糸。 In a polyester multifilament mixed filament yarn formed by interlacing at least two types of polyester multifilament yarns having different heat shrinkage rates,
The two types of polyester multifilament yarns are false twisted yarns and partially drawn yarns,
A polyester multi-filament mixed fiber, wherein the false twisted yarn and the partially drawn yarn are shrinked by dry heat. 請求項1に記載のポリエステルマルチフィラメント混繊糸を含むことを特徴とする布帛。 A fabric comprising the polyester multifilament mixed yarn according to claim 1. 熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸の製造方法において、
前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、
前記仮撚加工糸と前記部分延伸糸とを交絡させるステップと、
交絡させた前記仮撚加工糸と前記部分延伸糸に対してヒーターの乾熱による熱処理を施すステップとを備えることを特徴とするポリエステルマルチフィラメント混繊糸の製造方法。 In the method for producing a polyester multifilament mixed yarn, which comprises at least two types of polyester multifilament yarns having different heat shrinkage ratios,
The two types of polyester multifilament yarns are false twisted yarns and partially drawn yarns,
A step of intertwining the false twisted yarn and the partially drawn yarn;
A method for producing a polyester multi-filament mixed fiber, comprising the step of subjecting the entangled false twisted yarn and the partially drawn yarn to a heat treatment by dry heat of a heater. 前記乾熱による熱処理を施す際の前記ヒーターの出口直後の前記仮撚加工糸と前記部分延伸糸の温度が130℃以上であることを特徴とする請求項3に記載のポリエステルマルチフィラメント混繊糸の製造方法。 4. The polyester multifilament mixed fiber according to claim 3, wherein the temperature of the false twisted yarn and the partially drawn yarn immediately after the exit of the heater when the heat treatment by the dry heat is performed is 130° C. or more. Manufacturing method. 熱収縮率が異なる少なくとも2種類のポリエステルマルチフィラメント糸が交絡して成るポリエステルマルチフィラメント混繊糸を用いた布帛の製造方法において、
前記2種類のポリエステルマルチフィラメント糸が仮撚加工糸と部分延伸糸であり、
前記仮撚加工糸と前記部分延伸糸とを交絡させるステップと、
交絡させた前記仮撚加工糸と前記部分延伸糸に対してヒーターの乾熱による熱処理を施してポリエステルマルチフィラメント混繊糸を得るステップと、
前記ポリエステルマルチフィラメント混繊糸を織編物に加工するステップを備えることを特徴とする布帛の製造方法。 In a method for manufacturing a fabric using a polyester multifilament mixed yarn, wherein at least two types of polyester multifilament yarns having different heat shrinkage ratios are entangled,
The two types of polyester multifilament yarns are false twisted yarns and partially drawn yarns,
A step of intertwining the false twisted yarn and the partially drawn yarn;
A step of subjecting the entangled false twisted yarn and the partially drawn yarn to a heat treatment by dry heat of a heater to obtain a polyester multi-filament mixed fiber;
A method for producing a fabric, comprising a step of processing the polyester multifilament mixed fiber yarn into a woven or knitted fabric. 前記乾熱による熱処理を施す際の前記ヒーターの出口直後の前記仮撚加工糸と前記部分延伸糸の温度が130℃以上であることを特徴とする請求項5に記載の布帛の製造方法。

6. The method for producing a fabric according to claim 5, wherein the temperature of the false twisted yarn and the partially drawn yarn immediately after the exit of the heater when performing the heat treatment by the dry heat is 130° C. or higher.

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