WO1991010761A1 - Fibre composite a noyau et a gaine et procede de fabrication associe - Google Patents

Fibre composite a noyau et a gaine et procede de fabrication associe Download PDF

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Publication number
WO1991010761A1
WO1991010761A1 PCT/JP1990/000071 JP9000071W WO9110761A1 WO 1991010761 A1 WO1991010761 A1 WO 1991010761A1 JP 9000071 W JP9000071 W JP 9000071W WO 9110761 A1 WO9110761 A1 WO 9110761A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
component
composite fiber
stretching
polyester
Prior art date
Application number
PCT/JP1990/000071
Other languages
English (en)
Japanese (ja)
Inventor
Shogo Mutagami
Taro Murata
Original Assignee
Kanebo, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanebo, Ltd. filed Critical Kanebo, Ltd.
Priority to PCT/JP1990/000071 priority Critical patent/WO1991010761A1/fr
Publication of WO1991010761A1 publication Critical patent/WO1991010761A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent

Definitions

  • the present invention relates to a core-type composite fiber composed of two types of fiber-forming polymers and having excellent wear resistance and heat resistance, and a method for producing the same.
  • polyphenylene sulfide has high heat resistance and outstanding chemical resistance, and many attempts have been made to apply it not only to molded products but also to fibers and films.
  • the above-mentioned bolifenylene sulphide is expensive, there is a drawback that the use thereof increases the cost significantly. Therefore, it has been proposed to form a composite spin of, for example, Bolifen ylene sulfide and a general-purpose polymer component, for example, a polyester component (Japanese Patent Application Laid-Open No. 63-92724).
  • a polyester component Japanese Patent Application Laid-Open No. 63-92724
  • the present invention has been made in view of such circumstances, and has as its object to provide a core-shaped composite textile having excellent wear resistance, heat resistance, and chemical resistance, and a method for producing the same.
  • the present invention provides a cored conjugate fiber comprising a core component (A) and a ⁇ component (B), wherein the core component (A) is a polyester having a sulfone group.
  • a first aspect of the present invention is a core-type composite fiber, wherein the component (B) is formed of polyphenylene sulfide, and a polyester having a sulfone group in an innermost part in a composite spinneret. And at the same time as supplying the melt of volifenylene sulfide to at least the peripheral portion of the above spinneret.
  • the second point is the method of manufacturing a core-type composite fiber in which stretching at two or more sides is repeated by stretching temperature *
  • the present invention provides an improvement in the adhesiveness between polyolefin sulfide (hereinafter abbreviated as rppsj) and polyester, which has been a problem in practical use of composite fibers of bolifenylene sulfide and polyester.
  • rppsj polyolefin sulfide
  • polyester which has been a problem in practical use of composite fibers of bolifenylene sulfide and polyester.
  • sulfone-modified PET j a special polyester having a sulfone group
  • the sulfone-modified PET has a low melting point, if spun at a humidity higher than the ordinary spinning temperature of polyester, physical properties such as the strength of the obtained yarn will be reduced, which causes a problem of deterioration.
  • the spinning temperature of PPS generally 300 ° C
  • the spinning temperature of ordinary polyester generally 290 to 295
  • the sulfone-modified PET was used as a core component and coated with PPS, it was found that the sulfone-modified PET, whose physical properties are easily degraded by heat, was protected by PPS and the composite yarn as a whole was less deteriorated, and the present invention was reached.
  • the PPS covering the textile surface is not sufficiently stretched by applying only one stretch as in the case of ordinary polyester. It was found that if the procedure was repeated in two or more gardens, both PPS and sulfone-modified PET could be stretched without impairing the physical properties of the polymer, and a composite-type composite fiber with excellent properties could be obtained.
  • the present invention will be described in detail.
  • a polyester whose repeating unit is polyethylene terephthalate is copolymerized with 5-sodium sulfoisophthalic acid.
  • a blend of the above copolymer of polyethylene terephthalate and 5-sodium sulfoisophthalic acid with a homopolymer of polyethylene terephthalate are preferred.
  • the above-mentioned 5-sodium sulfoisophthalic acid is used to introduce a sulfone group into the polyester, and its amount is 0.5 to 5 mol%, particularly 1 to 4.5 mol, based on the base poly (ethylene terephthalate). It is preferable to set to ⁇ £%. If the amount is less than 0.5 * ⁇ £%, the adhesion to the composite component ( ⁇ ) described later will be poor, and the yarn component will be separated from the ⁇ component during the spinning, drawing, weaving and weaving processes, and the single yarn • yarn It tends to cause cutting and poor abrasion resistance. Conversely, if the content exceeds 5 mo, the strength of the core component (A) is reduced, which also tends to cause single yarn and yarn breakage.
  • the PPS used as the ⁇ component (B) of the composite fiber of the present invention is a polymer in which at least 80 mo of the structural unit is " ⁇ ] ⁇ S ⁇ r. As long as the amount does not exceed £%, other co-polymer components, polymers, additives, etc. may be included in the composite fiber of the present invention.
  • the component (B) can be produced, for example, as follows: First, a melt of the sulfone-modified PET, which is the core component (A), is placed in a falling part in a spinneret for spinning a conjugate fiber. And at the same time, a melt of the PPS, which is the component (B), is supplied to at least the periphery of the spinneret. At this time, the spinneret temperature is 5 times lower than the normal polyester spinning temperature. It is preferable to set to about 295'C which is as high as ⁇ 10 W
  • the two supplied melts are spun from the spinneret to obtain an undrawn yarn.
  • the undrawn yarn By subjecting the undrawn yarn to drawing at a drawing temperature of 96 ° C. or higher twice and repeatedly, the desired core-in-sheath type conjugate fiber can be obtained.
  • the stretching is repeated twice or more, it is preferable to lower the stretching ratio as the stretching is performed later, because the physical properties of the obtained fiber become better.
  • stretching twice or more at a stretching temperature slightly higher than that of ordinary polyester is 85 to 95 * C
  • the sulfonated PET which is weak to heat and has conventionally had to be stretched at an overflow lower than a normal polyester stretching temperature is used.
  • the S2 is placed inside the PPS, thermal degradation does not occur even when the film is drawn at the above high drawing temperature.
  • the core-type composite fiber obtained in this way makes use of the heat resistance, confectionery resistance and flame retardancy of PP S, and furthermore, the core component, sulfon-modified PET, and the composite component, PP
  • the adhesion of S is also good.
  • the price can also be significantly lower than the PPS alone. Therefore, it can be widely used as a general clothing material and interior material. Also, Ru very useful der special applications requiring heat resistance, chemical resistance ⁇
  • the composite ratio of the core component ( ⁇ ) and the II component ( ⁇ ) is such that ( ⁇ ) :( ⁇ ) is 1: 1 to 10: 1, particularly 2: 1 to 9: 1 on a volume basis. It is preferable to set to.
  • the resulting composite fiber has reduced abrasion resistance, and also has poor heat resistance and chemical resistance. There is a downward trend.
  • Examples of the cross section of the core-type composite fiber of the present invention include various types as shown in FIG. 1> FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. .
  • A indicates the core component
  • B indicates the sheath component.
  • the thickness of the thinnest portion formed by the composite component B is preferably set to 0.3 to 5 ttm, particularly 0.5 to 4.5 #m. If the thickness of the ⁇ part is thinner than 0.3 #m, the abrasion resistance of the obtained yarn tends to deteriorate, and conversely, even if the thickness of the sheath part is thicker than 5 m, the effect of chemical resistance remains unchanged and costs Because it ’s only high.
  • Figure 1 Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6 is Ru illustration der showing an example of the cross-sectional shape of the core-sheath type composite fibers, respectively it present invention ⁇

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Multicomponent Fibers (AREA)

Abstract

L'invention se rapporte à une fibre composite à noyau et à gaine, qui est composée d'un noyau en polyester ayant des groupes de sulfone et d'une gaine en sulfure de polyphénylène ainsi qu'à un procédé de fabrication d'une telle fibre par étirage en plusieurs étapes. Cette fibre a d'excellentes caractéristiques d'adhérence entre le noyau et la gaine et présente une bonne aptitude à être travaillée, dès lors qu'elle peut être filée ou tricotée sans qu'aucune rupture de fils puisse se produire. Comme sa surface est recouverte de sulfure de polyphénylène, cette fibre comporte d'excellentes propriétés de résistance thermique, d'ignifugation et de résistance aux attaques chimiques.
PCT/JP1990/000071 1990-01-22 1990-01-22 Fibre composite a noyau et a gaine et procede de fabrication associe WO1991010761A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/000071 WO1991010761A1 (fr) 1990-01-22 1990-01-22 Fibre composite a noyau et a gaine et procede de fabrication associe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/000071 WO1991010761A1 (fr) 1990-01-22 1990-01-22 Fibre composite a noyau et a gaine et procede de fabrication associe

Publications (1)

Publication Number Publication Date
WO1991010761A1 true WO1991010761A1 (fr) 1991-07-25

Family

ID=13986313

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000071 WO1991010761A1 (fr) 1990-01-22 1990-01-22 Fibre composite a noyau et a gaine et procede de fabrication associe

Country Status (1)

Country Link
WO (1) WO1991010761A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011115320A1 (fr) * 2010-03-15 2011-09-22 코오롱글로텍 주식회사 Fibre conjuguée hautement ignifuge et résistante à la lumière du soleil et tissu intérieur utilisant ladite fibre
CN102534832A (zh) * 2011-09-26 2012-07-04 上海贵达科技有限公司 一种耐高温耐腐蚀的皮芯型复合纤维的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204920A (ja) * 1983-05-02 1984-11-20 Kuraray Co Ltd 耐熱性、耐薬品性良好な複合繊維
JPS6392724A (ja) * 1986-09-30 1988-04-23 Kuraray Co Ltd 優れた耐熱性耐薬品性除電性能をもつ複合繊維

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204920A (ja) * 1983-05-02 1984-11-20 Kuraray Co Ltd 耐熱性、耐薬品性良好な複合繊維
JPS6392724A (ja) * 1986-09-30 1988-04-23 Kuraray Co Ltd 優れた耐熱性耐薬品性除電性能をもつ複合繊維

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011115320A1 (fr) * 2010-03-15 2011-09-22 코오롱글로텍 주식회사 Fibre conjuguée hautement ignifuge et résistante à la lumière du soleil et tissu intérieur utilisant ladite fibre
US9181638B2 (en) 2010-03-15 2015-11-10 Kolon Glotech, Inc. Conjugated fiber having excellent flame retardancy and color fastness and interior fabric using the same
CN102534832A (zh) * 2011-09-26 2012-07-04 上海贵达科技有限公司 一种耐高温耐腐蚀的皮芯型复合纤维的制备方法

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