EP0663966B1 - Monofilamente mit verbesserter webbarkeit, sowie verwendung der damit hergestellten gewebe - Google Patents
Monofilamente mit verbesserter webbarkeit, sowie verwendung der damit hergestellten gewebe Download PDFInfo
- 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
- Authority
- 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
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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.
Description
Schmelzetemperatur | 290°C |
Wickelgeschwindigkeit | 600 m/min |
Polymerdurchsatz | 23 g/min bzw. 27 g/min |
Polymer | Dehnung [%] | Festigkeit [cN/tex] | Modul bei 5 % Dehnung[cN/tex] |
PET | 27 | 55 | 695 |
PET | 19 | 62 | 860 |
PET/PDMS | 29 | 56 | 685 |
PET/PDMS | 19 | 59 | 840 |
- Fig. 1
- das K/D-Diagramm Polyester gegen Polyester/PDMS
- Fig. 2
- eine photographische Aufnahme von einem Webblatt der Testvorrichtung (nach dem Test)
Polymer | µF/F | µK/F |
PET | 0.33 | 0.53 |
PET/PDMS | 0.29 | 0.48 |
Polymer | Dt= 28 % | Dt= 18 % |
PET | 90 | 81 |
PET/PDMS | 91 | 89 |
Dt = Dehnung |
0.0 - 0.5 | gar keine bzw. sehr schwache Fibrillation |
0.5 - 1.5 | schwache Fibrillation |
1.5 - 3.5 | mittelstarke bis starke Fibrillation |
3.5 - 4.5 | sehr starke Fibrillation |
> 4.5 | sehr starke Beschädigung |
Polymer | Restdehnung= 28 % | Restdehnung= 20 % | ||
2000/10 | 2000/15 | 2000/10 | 2000/15 | |
PET | 1.0 | 1.5 | 1.3 | 2.2 |
PET/DMS | 0.0 | 0.1 | 0.3 | 0.4 |
Claims (5)
- Monofilament mit einem Durchmesser von 0,01-0,1 mm aus einem Copolyester aus Polyethylenterephthalat/ Polydialkylsiloxan, dessen Polyethylenterephthalatanteil wenigstens 85 Gew.-% aufweist, zur Herstellung von Geweben, wobei das Monofilament eine von < 30 %, eine Festigkeit von wenigstens 45 cN/tex und gleichzeitig einen E-Modul bei 5% Dehnung von > 500 cN/tex aufweist.
- Monofilament nach Anspruch 1, gekennzeichnet durch einen Faden/Faden Reibungskoeffizienten µ < 0,30 und einen Keramik/Fäden Reibungskoeffizienten µ < 0,50.
- Monofilament nach Anspruch 1, gekennzeichnet durch eine Restreisskraft von > 85 % bezogen auf das knotenfreie Monofil bei einer Höchstzugkraftdehnung von 18 %.
- Monofilament nach Anspruch 1, gekennzeichnet durch einem Si-Gehalt von 0,05 bis 2,0 Gew.-%, bezogen auf das Gewicht des Monofilaments.
- Verwendung der Monofilamente mit einem Durchmesser von 0,01-0,1 mm, aus einem Copolyester aus Polyethylenterephthalat/ Polydialkylsiloxan zur abschäl- und abriebfreien Herstellung von dichten Präzisionsgeweben für Filtermittel, Siebe und solche für den Siebdruck.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH235593 | 1993-08-06 | ||
CH235593 | 1993-08-06 | ||
CH2355/93 | 1993-08-06 | ||
PCT/CH1994/000156 WO1995004847A1 (de) | 1993-08-06 | 1994-07-27 | Monofilamente mit verbesserter webbarkeit, sowie verwendung der damit hergestellten gewebe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0663966A1 EP0663966A1 (de) | 1995-07-26 |
EP0663966B1 true EP0663966B1 (de) | 1999-01-13 |
EP0663966B2 EP0663966B2 (de) | 2002-05-02 |
Family
ID=4231856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94920865A Expired - Lifetime EP0663966B2 (de) | 1993-08-06 | 1994-07-27 | Monofilamente mit verbesserter webbarkeit, sowie deren verwendung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0663966B2 (de) |
JP (1) | JP3249527B2 (de) |
DE (1) | DE59407653D1 (de) |
ES (1) | ES2129651T5 (de) |
WO (1) | WO1995004847A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5090715A (de) * | 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. |
AU680511B2 (en) † | 1993-07-02 | 1997-07-31 | Rhone-Poulenc Viscosuisse Sa | Process for producing soil-repellent and abrasion-resistant monofilaments and their use |
-
1994
- 1994-07-27 EP EP94920865A patent/EP0663966B2/de not_active Expired - Lifetime
- 1994-07-27 WO PCT/CH1994/000156 patent/WO1995004847A1/de active IP Right Grant
- 1994-07-27 JP JP50613195A patent/JP3249527B2/ja not_active Expired - Fee Related
- 1994-07-27 ES ES94920865T patent/ES2129651T5/es not_active Expired - Lifetime
- 1994-07-27 DE DE59407653T patent/DE59407653D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2129651T5 (es) | 2002-11-16 |
JPH08503273A (ja) | 1996-04-09 |
ES2129651T3 (es) | 1999-06-16 |
JP3249527B2 (ja) | 2002-01-21 |
WO1995004847A1 (de) | 1995-02-16 |
EP0663966B2 (de) | 2002-05-02 |
DE59407653D1 (de) | 1999-02-25 |
EP0663966A1 (de) | 1995-07-26 |
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