EP0663966B1 - Monofilaments a proprietes de tissage ameliorees, et utilisation des tissus fabriques avec ces monofilaments - Google Patents

Monofilaments a proprietes de tissage ameliorees, et utilisation des tissus fabriques avec ces monofilaments Download PDF

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Publication number
EP0663966B1
EP0663966B1 EP94920865A EP94920865A EP0663966B1 EP 0663966 B1 EP0663966 B1 EP 0663966B1 EP 94920865 A EP94920865 A EP 94920865A EP 94920865 A EP94920865 A EP 94920865A EP 0663966 B1 EP0663966 B1 EP 0663966B1
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EP
European Patent Office
Prior art keywords
monofilament
monofilaments
thread
polyester
pet
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
Application number
EP94920865A
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German (de)
English (en)
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EP0663966A1 (fr
EP0663966B2 (fr
Inventor
Halim Baris
Etienne Fleury
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExNex AG
Original Assignee
Rhodia Filtec AG
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Publication date
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Application filed by Rhodia Filtec AG filed Critical Rhodia Filtec AG
Publication of EP0663966A1 publication Critical patent/EP0663966A1/fr
Publication of EP0663966B1 publication Critical patent/EP0663966B1/fr
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Publication of EP0663966B2 publication Critical patent/EP0663966B2/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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters

Definitions

  • the invention relates to a monofilament with a Diameter from 0.01 to 0.1 mm, from a copolyester made of polyethylene terephthalate / polydialkylsiloxane, its polyethylene terephthalate content has at least 85% by weight for Manufacture of fabrics and the use thereof Tissue.
  • Such monofilaments are among fine monofilaments understand whose diameter is in the range of 0.01 to 0.1 mm lie.
  • the object of the invention is to improve the weavability of fine To improve polyester monofilaments in warp and weft, no peeling, splicing and to generate no abrasion and the running times when weaving to extend by reduced cleaning effort.
  • the monofilament has a maximum tensile or elongation at break of ⁇ 30%, a strength of at least 45 cN / tex and one at the same time E-modulus at 5% elongation of> 500 cN / tex. It has surprisingly been shown that copolyesters with comonomers built into the polyester chain functionalized polysiloxanes the weavability of the monofilaments with a diameter of 0.01 to 0.1 mm. There are no visible peeling on fine Monofilament between 0.01 and 0.1 mm in diameter. This means that the previously frequent cleaning cycles can be carried out in the weaving mill extend significantly. There are no blockages of the tissue openings.
  • Copolyesters have proven to be particularly suitable which are either already in the form of granules or by adding immediately before extrusion functionalized polydialkylsiloxanes are modified and about 0.5% by weight silicon in the finished thread contain.
  • Polysiloxanes of the type used as the starting material are intended for use according to the invention known from EP-A-0 269 023.
  • the well-known chemically modified polymers are used to manufacture matrix fibers, are however in the present form for precision fabrics unsuitable for filter media, screen printing.
  • JP-A-50090715 is a mixture (blend) made of a polyester with a polysiloxane Manufacture of multifilaments known.
  • the monofilament has a residual tear strength of> 85% on the knot-free monofilament with a maximum tensile strength extension of 18%. At this Combination we the knot strength of the monofilament significantly improved.
  • the Si content is 0.05 to 2.0% by weight, in particular 0.05 to 1.5, preferably 0.05 to 1.0 % By weight, based on the weight of the monofilament is.
  • the abrasion of the polyester monofilament modified according to the invention is on the web sheet of the used Test device is still very weakly visible however no longer weighable. It is particularly beneficial that when making a fabric on a Interim cleaning of the loom Reeds are not absolutely necessary, or that the cleaning cycle is extended. This will also the quality of the fabrics improved significantly.
  • polyester / polydialkylsiloxane monofilaments according to the invention is especially for manufacturing of fabrics for filter media, sieves and those for Suitable for screen printing.
  • 13f1 was chosen as the model titer and the copolyester made of polyethylene terephthalate (PET) and polydimethylsiloxane (PDMS) as the polymer. This corresponds to a diameter of 0.034 mm for all (PET) / (PDMS) monofilaments.
  • the spinning conditions for all examples are: Melt temperature 290 ° C Winding speed 600 m / min Polymer throughput 23 g / min or 27 g / min
  • the monofilaments were further drawn on a drawing machine to the maximum tensile force extension of 28 +/- 2% or 20 +/- 2% stretched in one stage at 200 ° C. at 100 m / min.
  • Figure 2 gives the result of a web test in the form of photographic recordings of the reed used again.
  • the threads with positions 1-4 are according to the invention and show very little abrasion and Peeling; the threads are in accordance with items 5-10 Comparative tests without PDMS and show considerable Abrasion or peeling on the reed of the Test machine. It follows from that that monofilament according to the invention is essential shows improved weavability and longer working cycles.
  • the determination of the coefficient of friction is based on the Rope friction equation.
  • the measurement of the coefficient of friction was carried out with a device from Rothschild measuring instruments, Zurich, during 2 minutes.
  • the determination of the coefficient of friction "ceramic / thread" shows the ceramic pin a diameter of 20 mm and a roughness from 0.45 to.
  • the monofilament is made of PET / PDMS about 10% lower coefficients of friction both in the case Thread / thread as well as in the case of ceramic / thread.
  • the claimed monofilaments PET / PDMS are also less stiff than known monofilaments.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)

Claims (5)

  1. Monofilament d'un diamètre de 0,01-0,1 mm, en copolyester de polyéthylène téréphtalate / polydialkyle siloxane dont la teneur en polyéthylène téréphtalate est au moins égale à 85 % en masse, pour la fabrication de tissus, le monofilament montrant un allongement à la rupture inférieur à 30 %, une ténacité d'au moins 45 cN/tex et simultanément un module d'élasticité supérieur à 500 cN/tex à 5 % d'allongement.
  2. Monofilament selon la revendication 1, caractérisé par un coefficient de frottement fil / fil µ < 0,30 et un coefficient de frottement céramique / fil µ < 0,50.
  3. Monofilament selon la revendication 1, caractérisé par une résistance à la rupture résiduelle supérieure à 85 %, à un allongement de rupture de 18 %, mesurée par rapport au monofilament sans noeud.
  4. Monofilament selon la revendication 1, caractérisé par une teneur en Si de 0,05 à 2,0 % en masse, mesurée par rapport à la masse du monofilament.
  5. Utilisation des monofilaments d'un diamètre de 0,01-0,1 mm en copolyester de polyéthylène téréphtalate / polydialkyle siloxane pour la fabrication, sans pelage ni abrasion, de tissus de précision de haute densité pour matériaux de filtration, tamis et autres produits pour la sérigraphie.
EP94920865A 1993-08-06 1994-07-27 Monofilaments a proprietes de tissage ameliorees, et leur utilisation Expired - Lifetime EP0663966B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH2355/93 1993-08-06
CH235593 1993-08-06
CH235593 1993-08-06
PCT/CH1994/000156 WO1995004847A1 (fr) 1993-08-06 1994-07-27 Monofilaments a proprietes de tissage ameliorees, et utilisation des tissus fabriques avec ces monofilaments

Publications (3)

Publication Number Publication Date
EP0663966A1 EP0663966A1 (fr) 1995-07-26
EP0663966B1 true EP0663966B1 (fr) 1999-01-13
EP0663966B2 EP0663966B2 (fr) 2002-05-02

Family

ID=4231856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94920865A Expired - Lifetime EP0663966B2 (fr) 1993-08-06 1994-07-27 Monofilaments a proprietes de tissage ameliorees, et leur utilisation

Country Status (5)

Country Link
EP (1) EP0663966B2 (fr)
JP (1) JP3249527B2 (fr)
DE (1) DE59407653D1 (fr)
ES (1) ES2129651T5 (fr)
WO (1) WO1995004847A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090715A (fr) * 1973-12-20 1975-07-21
JPS6081312A (ja) * 1983-10-05 1985-05-09 Toray Monofilament Co Ltd 漁業用ポリエステルモノフイラメント
JPH0643644B2 (ja) * 1983-10-05 1994-06-08 東レ・モノフィラメント株式会社 防汚性ポリエステルモノフィラメント
JPS60194118A (ja) * 1984-03-12 1985-10-02 Unitika Ltd ポリエステルモノフイラメント
US4758637A (en) * 1985-09-11 1988-07-19 Union Carbide Corporation Silicone-modified polyester resin and silicone-sheathed polyester fibers made therefrom
FR2688509A1 (fr) * 1992-03-13 1993-09-17 Rhone Poulenc Fibres Copolymere polyester/polydiorganosiloxane, composition contenant ce polymere et procedes de fabrication de ce copolymere et cette composition.
CA2143424A1 (fr) † 1993-07-02 1995-01-12 Halim Baris Procede pour l'obtention de monofilaments antisalissures et resistant a l'abrasion; leurs utilisations

Also Published As

Publication number Publication date
ES2129651T5 (es) 2002-11-16
EP0663966A1 (fr) 1995-07-26
WO1995004847A1 (fr) 1995-02-16
JP3249527B2 (ja) 2002-01-21
DE59407653D1 (de) 1999-02-25
EP0663966B2 (fr) 2002-05-02
JPH08503273A (ja) 1996-04-09
ES2129651T3 (es) 1999-06-16

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