EP0399053B1 - Zusammengesetztes monofilament aus polyester für siebdruckraster - Google Patents

Zusammengesetztes monofilament aus polyester für siebdruckraster Download PDF

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Publication number
EP0399053B1
EP0399053B1 EP89913175A EP89913175A EP0399053B1 EP 0399053 B1 EP0399053 B1 EP 0399053B1 EP 89913175 A EP89913175 A EP 89913175A EP 89913175 A EP89913175 A EP 89913175A EP 0399053 B1 EP0399053 B1 EP 0399053B1
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EP
European Patent Office
Prior art keywords
polyester
sheath
core
monofilament
component
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Expired - Lifetime
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EP89913175A
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English (en)
French (fr)
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EP0399053A4 (en
EP0399053A1 (de
Inventor
Yoshimitsu Itou
Mototada Fukuhara
Akira Kishiro
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Toray Industries Inc
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Toray Industries Inc
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics
    • 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
    • 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
    • D03D15/20—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 material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—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 material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/247—Meshes, gauzes, woven or similar screen materials; Preparation thereof, e.g. by plasma treatment
    • 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
    • D03D15/30—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 fibres or filaments
    • D03D15/37—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 fibres or filaments with specific cross-section or surface shape
    • 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
    • D03D15/573—Tensile strength
    • 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]

Definitions

  • the present invention relates to a polyester composite monofilament suitable for a mesh fabric used for screen printing.
  • the present invention relates to a polyester composite monofilament suitable for obtaining a bolting cloth with high mesh and high modulus used in fields wherein high accuracy is required such as electronic circuits.
  • mesh fabrics consisting of a natural fiber such as silk or an inorganic fiber such as stainless steel fiber have been widely used.
  • mesh fabrics namely bolting cloths consisting of nylon and polyester having flexibility, durability and dimensional stability, have been used in many cases.
  • bolting cloths consisting of polyester monofilaments have been widely used as they are little influenced by water and are inexpensive in comparison with nylon .
  • polyester monofilaments with low elongation have caused a large amount of scum, so that it has been recognized that weaving is impossible by using such monofilaments with low elongation.
  • requirements by the printing industry have become more severe than before and a mesh fabric with a fine denier and a high mesh, namely, with a high weave density, is required.
  • Tension applied on a filament during weaving is not necessarily proportional to its denier and a high tenacity per monofilament is needed. The thinner the denier is, a product with higher breaking strength is needed. Therefore, to improve printing accuracy, it is necessary to have a bolting cloth with high strength, high modulus and fine mesh.
  • the draw ratio in the manufacturing process of the original fiber is raised to a high level.
  • the obtained filament has a highly oriented and highly crystallized structure.
  • a fabric with an extremely high density is woven at a high speed. Therefore, the warp filament is repeatedly exposed to a strong friction with a reed etc., and part of the surface of the filament is thereby scraped and beardlike or powdery scum is easily generated.
  • orientation and crystallization become higher, this tendency is enhanced and as a result, it becomes necessary to stop weaving temporarily and to clean the weaving machine.
  • JP-A-276048/1987 and its family corresponding member EP-A-0311687 disclose a composite filament wherein a polymer such as nylon having good adhesiveness with emulsions and resins for pattern making and being durable to scraping is used as a sheath. Development of scum can be prevented in case of nylon in comparison with polyester, because of its toughness for scraping, but there then exists a defect that nylon exhibits higher moisture absorption and poor dimensional stability. In a process for achieving precise printing, dimensional stability after a fabric is set and fixed on a frame and during storage time, plate making (forming of a printing pattern) and during the printing procedure, is extremely important.
  • nylon is used, even if it is a part of a composite filament, it is easily influenced by temperature and humidity and the tension imparted to the fabric tends to be relaxed. In particular, if the atmosphere in the workshop is not strictly controlled, the influence becomes larger. Therefore, usingthis technology, weaving characteristics can be improved but accuracy of precise printing cannot be improved.
  • JP-A-276048/1987 and EP-A-0311687 there is also a general reference to the use of a polyester with a low viscosity as a sheath component, but no practical example is described. Indeed, a polyester with a low viscosity is not generally used as a raw material for a monofilament for a bolting cloth.
  • a polyester with a low viscosity generally means a polyester with a low degree of polymerization and which is easily crystallized by heat during drawing. Monofilaments thus obtained exhibit poor toughness and are brittle.
  • the sheath-core type composite monofilament wherein a polyester with a low viscosity is used as a sheath
  • the polyester with a low viscosity is scraped by friction during weaving ofafabric and scum is produced. Therefore, the sheath-core type composite monofilament wherein a polyester with a low viscosity is used as the sheath component is not suitable for bolting cloth for screen printing.
  • the present invention seeks to provide a polyester composite monofilament suitable for precise printing, with good dimensional stability, good weaving characteristics and reduced scum.
  • the present invention seeks to provide a polyester composite monofilament with high tenacity and high modulus suitable for fine denier and high mesh fabrics.
  • This invention provides a polyester composite monofilament for bolting cloth for screen printing, which composite monofilament consists of a core of a first polyester component and a sheath of a second polyester component, in which composite monofilament
  • a feature of the polyester composite monofilament for a bolting cloth of the present invention is high tenacity per monofilament against tension applied in the weaving process.
  • the tenacity which particular monofilaments require depends upon the type of a weaving machine to be used and the number of rotations during weaving and when the tenacity is about 50 g/filament or higher, problems during weaving are, in practice, solved.
  • the breaking strength is 6 g/d or higher
  • a monofilament with a denier of about 9 d can be provided and furthermore, if it is 7 g/d or higher, it becomes possible to lower the denier down to 7 d to make thinner monofilaments. Therefore, it is necessary to achieve a breaking strength of the monofilament of 6 g/d and preferably 7 g/d or higher.
  • the modulus of the monofilament means the stress produced in the filament at 10% elongation. Namely, it is a value obtained by dividing tenacity at 10% elongation in the S-S curve of the original filament by its denier. It is necessary to provide the monofilament with a modulus 3.5 g/d or larger and more preferably, 3.8 g/d or larger. The higher the modulus of the monofilament, the better is the result. Satisfactory results can be achieved with a monofilament having a polyethylene terephthalate as the core component and a modulus of about 10 g/d or lower.
  • the present invention seeks to achieve good weaving properties for a monofilament with such a high breaking strength, high modulus and low elongation.
  • this problem has been solved by providing a monofilament of the sheath-core type and having, furthermore, the features recited in claim 1.
  • the Tg of the polyester sheath suitable for precise printing should be 45 - 65°C.
  • a polymer having such a Tg can be obtained by copolymerizing a crystalline polyester, in particular a polyester having polyethylene terephthalate as a main component, with a monomer increasing flexibility of the molecular chain or a monomer or a polymer with a relatively low molecular weight hardly producing steric hindrance.
  • suitable copolymers are dicarboxylic acids such as isophthalic acid, adipic acid, dimer acid and sebacic acid, a compound of a general formula R 1 O(C n H 2n O) m R 2 (wherein R 1 and R 2 are each H or an alkyl group having 1 to 4 carbon atoms; n is an integer of 2-5; m is an integer of 2-250), for example, low molecular weight glycols such as diethylene glycol, butane diol and neopentyl glycol, polyalkylene glycols such as polyethylene glycol and polytetramethylene glycol.
  • dicarboxylic acids such as isophthalic acid, adipic acid, dimer acid and sebacic acid
  • R 1 and R 2 are each H or an alkyl group having 1 to 4 carbon atoms
  • n is an integer of 2-5
  • m is an integer of 2-250
  • low molecular weight glycols such as diethylene glycol, butan
  • the amount of copolymerized moiety is not indiscriminately determined but depends upon the type of selected copolymer. It should be appropriately chosen in such a way that the Tg of the polymer thus obtained is 45 - 65°C.
  • a polymer with a low degree of polymerization (a low viscosity) is easily crystallized by heating in comparison with a polymer with a high degree of polymerization (a high viscosity), exhibits poor toughness and a tendency to become brittle. Therefore, as the sheath component of a monofilament of the present invention, it is preferable that a polymer with a high degree of polymerization with an intrinsic viscosity [ ⁇ ] of 0.60 or larger and which is spinnable is used.
  • a copolyester with a low Tg is generally soft, but on the contrary, it is difficult to achieve a higher breaking strength, modulus and elongation when using such a copolyester and therefore, it is impossible to obtain a filament satisfying the mechanical characteristics of the monofilament of the present invention as it is.
  • this particular problem can be solved by employing a composite structure wherein a polymer with a lower Tg is used for only the sheath component.
  • the polymer scraped by friction against a reed and a guide bar is the polymer on the surface. Therefore, it suffices to use a polymer with a low Tg on the surface.
  • Mechanical characteristics such as breaking strength, modulus and elongation should be provided by the polymer forming the core.
  • the ratio of the amount of core component to that of the sheath component is at a relatively high level and as a result, it is necessary that the area ratio of the core to the sheath is at least 70:30, or higher, and is preferably 80:20 or more.
  • both the core and the sheath are made of polyesters, so peeling at the interface of the composite scarcely occurs.
  • the sheath becomes too thin, a so-called composite disarrangement such as to expose the core polymer on part of the fiber surface tends to occurs. This may result in a decrease in the effect of suppressing the development of scum and therefore, the maximum area ratio should be 95:5.
  • the thickness of the sheath is at most 5 ⁇ . or thinner.
  • polyester constituting the core of the present invention taking the cost etc. into consideration, polyethylene terephthalates, used in larger quantities in clothing and industrial applications, are used.
  • the Tg of such a core polyester is higher than that of the polymer constituting the sheath and in practice, the Tg of the core polyester is 78°C or higher. Within this range, if necessary, a third component can be incorporated or copolymerized.
  • polyester composite monofilament of the present invention can be used as the polyester composite monofilament of the present invention.
  • One preferred morphology is a coaxial cylinder structure which in cross-section provides a concentric circle wherein the centre of the core and the centreofthe sheath coincide. It is not preferable that if the core is eccentric, crimps or curls are produced caused by a little difference in thermal and mechanical characteristics of polymers constituting the core and the sheath.
  • Another preferred morphology is an islands-in-a-sea type structure wherein a plurality of cores (islands) are surrounded with a sheath (a sea).
  • the advantage of such an islands-in-a-sea type structure is exhibited when a polyethylene terephthalate with higher degree of polymerization, for example, ; an intrinsic. viscosity [ ⁇ ] of 0.75 or higher or a liquid crystalline polyester, which easily provides a high modulus filament as cores is used.
  • These polyesters provides high strength and high modulus, but on the other hand, they lack flexibility and hardly follow the bent structure of warp and weft when a high mesh fabric is prepared.
  • the denier of the constituted filament is made thinner.
  • Those fibers with thin denier are flexible even if their moduli are high and easily follow the deformation during weaving.
  • the fiber bundle becomes flat in a fabric and it is difficult to ensure a large dimension of the opening when a screen fabric is made of such fabric.
  • it has become necessary to give a twist to the filament for improving the weaving characteristics and this results in making the process more complex and giving an insufficient uniformity of opening. Therefore, in this case, it is preferable to prepare a structure wherein a plurality of cores are surrounded with a sea.
  • the denier of a single filament constituting an island is preferably 3 d or thinner, more preferably 1 d or thinner and it is preferable that thinner filaments are more flexible. It is necessary that the number of filaments constituting the islands is at least 5 or larger. If the number of islands becomes small, it becomes difficult to provide a sufficiently high ratio of the island component to the sea component as described before. Moreover, this results in a large sea volume being necessary in order to realize a uniform composite and in this case the features of high strength and high modulus are hardly exhibited. It is possible to have 100 or more islands but too high a number only results in making the spinning nozzle too complicated and up to about several dozens should be enough for achieving the purpose of the present invention.
  • the crosssectional shape of the monofilament should be round. This is because, if the shape is a deformed crosssection, halation occurs when a photosensitive emulsion is cured and this has a bad influence on printing accuracy in some cases. Another reason is that in comparison with a round crosssection filament, a filament with a deformed crosssection exhibits poor straightness and does not provide a screen with a particular uniform opening.
  • a composite monofilament of the present invention can be obtained by any conventional well-known composite spinning method.
  • polymers each forming the core and the sheath are independently melted and metered and both are joined together at the rear face of a spinneret so as to form a sheath-core structure and extruded from the same nozzle to obtain the composite monofilament.
  • an islands-in-a-sea type composite filament is obtained by melting and metering separately two polymers constituting respectively a sea component and an island component, feeding them respectively into the same spinning pack, forming independent sheath-core composite flows at a first stage, joining together each sheath-core flow at a second stage and extruding a multi-core islands-in-a-sea type composite flow from a nozzle.
  • a plurality of ultrafine filaments each independently form an island and a structure wherein the islands are surrounded by a polymer forming a sea is formed.
  • the sea component since it is not the purpose to dissolve the sea component and to obtain the bundle of the ultra-fine filaments, it is allowable for the islands to be partly joined together a little.
  • too many joinings of flows reduces the effect of making the filament ultrafine and the filament lacks flexibility. Joinings of flows should be avoided as much as possible by taking the design of the nozzle into consideration in accordance with the viscosity of the polymer to be used.
  • a mesh fabric was woven by means of a Sulzer type weaving machine, the number of rotations of the weaving machine being 350 rpm. Observing the degree of contamination of a reed, when it was judged that continuous weaving became impossible, the weaving machine was stopped and the reed was washed. The weaving period up to this time was defined as a reed washing cycle (m). The shorter this washing cycle was, the more was the development of scum.
  • a tenacity-elongation curve of a fabric was obtained by means of the labeled strip method described in JIS L1068-1964 using a tensile tester with a constant speed stretching under a testing condition with a test sample width of 5 cm, a clamped distance of 20 cm and an extension speed of 20 cm/min and the tenacity (kg) at 10% elongation was defined as the modulus of the fabric.
  • a polyethylene terephthalate (A) with an intrinsic viscosity [ ⁇ ] of 0.80 was prepared as a core component of a composite monofilament. Tg of this polymer was 79°C.
  • a polymer (B) with an intrinsic viscosity [ ⁇ ] of 0.67 made by incorporating 8 wt.% of polyethylene glycol with a molecular weight of 1,000 when a polyethylene terephthalate was polymerized was prepared. Tg of this polymer was 58°C.
  • a composite monofilament wherein the polymer A was the core and the polymer B was the sheath was spun at 1,000 m/min by means of a conventional well-known composite spinning method at a spinning temperature of 295°C.
  • the composite area ratio of the core to the sheath was 90:10.
  • Drawing of the obtained undrawn monofilament was performed at various draw ratios by using a pair of hot rolls each heated at 90°C and 140°C to obtain drawn monofilaments with a denier of 8 denier.
  • the monofilaments were woven, finished and treated to obtain high mesh bolting cloth with a mesh of 300.
  • sheath-core composite filaments were obtained with a monofilament denier of 7 denier.
  • a polyethylene terephthalate (A) with an intrinsic viscosity of 0.75 was used as the core component and copolyesters each with a different Tg were respectively used as the sheath components and the core-sheath area ratios were different from each other.
  • High mesh fabric with a mesh of 360 mesh were obtained by weaving the monofilaments, finishing and treating them.
  • the results of evaluation on scum on each composite filament are shown in Table 2.
  • the dimensional stability was determined by observing the degree of distortion of a printed pattern after printing on 3,000 pieces had been completed and by marking less distortion as good and more distortion as poor.
  • Strength, elongation and modulus of the obtained filament were 6.5 g/d, 32% and 3.5 g/d respectively.
  • bolting cloth of 330 mesh was prepared. Both samples exhibited good weaving properties.
  • the fabrics were each set on a making-up frame with a size of 44 cm and tensions of the fabrics were measured with time.
  • the atmosphere was kept normal, ie at 20°C and 65% RH and after 7 days, they were exposed in an high temperature and high humidity atmosphere such as 40°C and 80% RH and stabilities of tensions of the fabrics were evaluated.
  • Tensions of the fabrics were measured in terms of N/cm by using TENSION METER-40D manufactured by HINRICH MANTEL Co., Ltd. The results are shown in Table 3.
  • Table 3 Tension of the fabric (N/cm) Example 3 Comparative Example 1 At the beginning when the fabric was set 35.2 35.0 1 days 32.6 31.0 3 days 32.0 30.5 7 days 32.0 30.0 7 days (40°C, 80%) 31.8 28.0
  • the fabric made of the composite monofilament wherein nylon was the sheath component (Comparative Example 1) exhibited large initial change and large dependence on temperature and moisture, which showed that it was unstable.
  • the fabric using the composite monofilament of the present invention (Example 3) exhibited small initial change and small dependence on temperature and moisture, which showed that it was stable.
  • a polyethylene terephthalate with an intrinsic viscosity [ ⁇ ] of 0.8 was prepared by an ordinary method as an island component of a composite monofilament. Tg of this polymer was 79°C. On the other hand, as a sea component, a polymer with an intrinsic viscosity [ ⁇ ] of 0.64 made by incorporating 10 wt.% of polyethylene glycol with a molecular weight of 1,000 when a polyethylene terephthalate was polymerized, was prepared. Tg of this polymer was 56°C.
  • Composite spinning was performed by means of a well known method for obtaining a laterally-arranged polymer to obtain a monofilament with a ratio of the sea to the island of 10:90, having 16 independent islands and with a total denier of 10 denier.
  • Strength, modulus at 10% elongation and elongation of this monofilament were 6.5 g/d, 5.3 g/d and 32% respectively.
  • This monofilament showed considerable flexibility.
  • a fabric with 315 mesh was woven and according to the result of evaluation of scum, even though this was a high strength polyester monofilament, the washing cycle of the reed was 1,000 m. When continuous weaving was performed, no washing of the weaving machine was necessary for a long time and a bolting cloth with excellent quality was obtained efficiently.
  • a composite monofilament was obtained in accordance with Example 1. In this case, for comparison, the composite ratio of the sea to the island and the number of island components were changed as shown in Table 5. The obtained results are shown in Table 5.
  • a polyester composite monofilament embodying the present invention by using on the one hand a copolyester which does not generate scum, has a low glass transition point and is soft as the sheath component suppressing development of scum and on the other hand a polyester exhibiting enhanced mechanical characteristics of the monofilament as the core component, even though the monofilament provides high strength, high modulus and low elongation, the problem of development of scum during weaving can be solved.
  • a bolting cloth consisting of a monofilament, with a fine denier and having a high mesh, a high tenacity and a high modulus can be obtained and it is possible to perform with good accurracy a highly precise printing without dimensional change during printing and with a line width of 100 ⁇ m or smaller.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Multicomponent Fibers (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Artificial Filaments (AREA)

Claims (5)

  1. Zusammengesetztes Polyester-Monofilament für Stoffgazen zum Siebdrucken, welches zusammengesetzte Monofilament aus einem Kern aus einer ersten Polyesterkomponente und einer Hülle aus einer zweiten Polyesterkomponente besteht, in welchem zusammengesetzten Monofilament:
    (a) die erste Komponente, der Polyester-Kern, aus Polyethylenterephthalat besteht und die zweite Komponente, die Polyester-Hülle, ein Copolyester ist, von dem ein Hauptteil Polyethylenterephthalat ist;
    (b) die erste Komponente, der Polyester-Kern, eine Glastemperatur von zumindest 78°C und die zweite Komponente, die Polyester-Hülle, eine Glastemperatur von 45-65°C aufweist;
    (c) das Flächenverhältnis zwischem dem Kern und der Hülle im Bereich von 70:30 bis 95:5 liegt; und
    (d) die Bruchfestigkeit des Monofilaments 52,156 cN/Tex (6 g/den) oder höher und der Modul des Monofilaments bei einer Dehnung von 10% 30,891 cN/Tex (3,5 g/den) oder höher ist.
  2. Zusammengesetztes Polyester-Monofilament nach Anspruch 1, das im wesentlichen eine Hülle-Kern-Struktur vom Typ koaxialer Zylinder ist.
  3. Zusammengesetztes Polyester-Monofilament nach Anspruch 1 oder 2, worin die Hüllenkomponente ein Copolyester von Polyethylenterephthalat mit zumindest einem Monomer ist, das aus Dimersäure, Adipinsäure, Sebacinsäure und einer Verbindung der folgenden allgemeinen Formel ausgewählt ist:

            R1O(CnH2nO)mR2

    worin R1 und R2 jeweils aus H oder einer Alkylgruppe mit 1 bis 4 Kohlenstoffatomen ausgewählt sind, n eine ganze Zahl von 2-5 ist und m eine ganze Zahl von 2-250 ist.
  4. Zusammengesetztes Polyester-Monofilament nach einem der vorhergehenden Ansprüche, das ein Denier von weniger als 0,9999 Tex (9 Denier) aufweist.
  5. Zusammengesetztes Polyester-Monofilament nach Anspruch 1, 3 oder 4, mit 5 oder mehr Kernen, wobei jeder einzelne Kern ein Denier von 0,3333 Tex (3 d) oder weniger aufweist.
EP89913175A 1988-12-05 1989-12-04 Zusammengesetztes monofilament aus polyester für siebdruckraster Expired - Lifetime EP0399053B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP307100/88 1988-12-05
JP30710088 1988-12-05
JP1086589 1989-01-19
JP10865/89 1989-01-19
PCT/JP1989/001214 WO1990006384A1 (en) 1988-12-05 1989-12-04 Polyester composite mono-filament for screen gauze

Publications (3)

Publication Number Publication Date
EP0399053A1 EP0399053A1 (de) 1990-11-28
EP0399053A4 EP0399053A4 (en) 1991-09-04
EP0399053B1 true EP0399053B1 (de) 1996-06-05

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EP89913175A Expired - Lifetime EP0399053B1 (de) 1988-12-05 1989-12-04 Zusammengesetztes monofilament aus polyester für siebdruckraster

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EP (1) EP0399053B1 (de)
KR (1) KR950007817B1 (de)
AT (1) ATE138983T1 (de)
DE (1) DE68926617T2 (de)
WO (1) WO1990006384A1 (de)

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DE10019940A1 (de) * 2000-04-11 2001-10-25 Sefar Ag Thal Gewebe zum Herstellen einer Schablone für Siebdruck sowie Schablone daraus und deren Verwendung
CN110637113A (zh) * 2017-04-27 2019-12-31 科思创有限公司 用于3-d打印的结构化长丝

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Publication number Priority date Publication date Assignee Title
WO1994025527A2 (en) * 1993-05-04 1994-11-10 E.I. Du Pont De Nemours And Company Improved bonding resin and methods relating thereto
JP3998090B2 (ja) * 1999-01-11 2007-10-24 Ｋｂセーレン株式会社 スクリーン紗用ポリエステルモノフィラメント

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207619A (ja) * 1985-03-06 1986-09-16 Teijin Ltd ゴム補強用ポリエステル繊維
JPH0637117B2 (ja) * 1986-02-18 1994-05-18 日本特殊織物株式会社 印捺スクリ−ン用メツシユ織物

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10019940A1 (de) * 2000-04-11 2001-10-25 Sefar Ag Thal Gewebe zum Herstellen einer Schablone für Siebdruck sowie Schablone daraus und deren Verwendung
DE10019940B4 (de) * 2000-04-11 2011-02-17 Sefar Ag Gewebe zum Herstellen einer Schablone für Siebdruck sowie Schablone daraus und deren Verwendung
CN110637113A (zh) * 2017-04-27 2019-12-31 科思创有限公司 用于3-d打印的结构化长丝

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KR910700366A (ko) 1991-03-15
EP0399053A4 (en) 1991-09-04
ATE138983T1 (de) 1996-06-15
KR950007817B1 (ko) 1995-07-20
DE68926617T2 (de) 1996-10-31
WO1990006384A1 (en) 1990-06-14
DE68926617D1 (de) 1996-07-11
EP0399053A1 (de) 1990-11-28

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