EP0024511B1 - Beschichtetes Gewebe, Verfahren zu dessen Herstellung und Verwendung - Google Patents

Beschichtetes Gewebe, Verfahren zu dessen Herstellung und Verwendung Download PDF

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Publication number
EP0024511B1
EP0024511B1 EP80103802A EP80103802A EP0024511B1 EP 0024511 B1 EP0024511 B1 EP 0024511B1 EP 80103802 A EP80103802 A EP 80103802A EP 80103802 A EP80103802 A EP 80103802A EP 0024511 B1 EP0024511 B1 EP 0024511B1
Authority
EP
European Patent Office
Prior art keywords
fabric
mixture
layer
intended
coated
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
Application number
EP80103802A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0024511A3 (en
EP0024511A2 (de
Inventor
Jürgen Jaschek
Wolf Dr. Dipl.-Phys. Krummheuer
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.)
Akzo Patente Te Wuppertal Bondsrepubliek Dui GmbH
Original Assignee
Akzo GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6078650&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0024511(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Akzo GmbH filed Critical Akzo GmbH
Publication of EP0024511A2 publication Critical patent/EP0024511A2/de
Publication of EP0024511A3 publication Critical patent/EP0024511A3/de
Application granted granted Critical
Publication of EP0024511B1 publication Critical patent/EP0024511B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2041—Two or more non-extruded coatings or impregnations
    • Y10T442/2049—Each major face of the fabric has at least one coating or impregnation
    • Y10T442/2057—At least two coatings or impregnations of different chemical composition

Definitions

  • the invention relates to a coated fabric with a fabric made of endless multifilament threads, which is coated with two layers of macromolecular substances, a method for its production and its use.
  • a coated fabric is known from BE-PS 543 880.
  • Coated fabrics generally consist of a fabric, knitted fabric, scrim or the like thread structure, or the like with rubber, plastic, resin. is coated, and are usually liquid and air or gas impermeable.
  • the advantages which can be achieved with such coated fabrics can be attributed in particular to the combination of the known favorable properties of the conventional coating materials with the comparatively higher strength of the thread structures embedded therein.
  • coated fabrics are widely used in a wide variety of areas of technology and everyday life, for example for the manufacture of air-filled halls, stadium roofs, packaging material, truck tarpaulins, inflatable boats, roof truss insulation and the like.
  • difficulties arose again and again, especially when the adhesion between the fabric and the coating material was insufficient.
  • Better adhesion is generally achieved with fabrics made from spun yarns, which is why such fabrics were often preferred, so that the known advantages of endless multifilament yarns could not yet be fully applied in all areas.
  • fabrics with a high fabric density could be used.
  • the present invention is therefore based on the object of providing a coated fabric in which the adhesion between the fabric consisting of endless multifilament threads and the coating composition consisting partly of synthetic resin is improved such that due to the improved adhesion and the comparatively higher Strength of multifilament continuous filaments, even fabrics with a lower fabric density than previously customary.
  • a coated fabric with a fabric made of endless multifilament threads which is coated with two layers of macromolecular substances, in which, according to the invention, the surface of the endless multifilament threads is activated and roughened to improve the adhesion by chemical action, in which the tissue has a fabric density in the range from 26% to 60%, and in which the first and second layers consist of a plastic / synthetic resin mixture, the proportion by weight of the two mixture components being different in the two layers.
  • the nature of the first layer ensures excellent adhesion to the carrier fabric, and despite the presence of the second layer, the coated fabric according to the invention has a high degree of flexibility.
  • the nature of the second layer makes it possible to process the coated fabric according to the invention as such or to make it usable for other purposes by further coating.
  • the present invention therefore makes it possible, using the known advantageous properties of endless multifilament yarns, to keep the proportion of fabric comparatively low without having to accept any loss in the performance properties of the coated fabric according to the invention.
  • a further improvement in the adhesion between the fabric and the first layer is achieved if the fabric or the threads used for this purpose previously according to one of DE-AS-1 199 224, DE-AS-1 212 245, DE- OS-1 444 139, DE-AS-1 444 140, DE-OS-1 444 141 or DE-AS-1 444 142 have been treated.
  • both sides of the fabric can also be coated with the same advantages.
  • fabrics with a relatively high fabric density of, for example, 60% are suitable, as well as fabrics with a relatively low fabric density of, for example, 26%.
  • fabrics with a relatively low fabric density of, for example, 26% are suitable, as well as fabrics with a relatively low fabric density of, for example, 26%.
  • particularly good results are achieved with fabrics whose fabric density is in the range from 32% to 42%.
  • the method described in the magazine “Textilpraxis", edition 1947, pages 330 to 335 and 366 to 370 is used to determine the fabric density.
  • the proportion by weight of the plastic in the first layer or in the second layer is only 0.2 times or 10 times the proportion by weight of the synthetic resin in these layers
  • the proportion by weight is Plastic in the first layer and / or in the second layer but advantageously 1 to 4 times the proportion by weight of the synthetic resin, excellent results being achieved when the proportion by weight of the plastic is 1.5 to 2 times the proportion by weight of the synthetic resin.
  • the synthetic resin contained in the first and / or in the second layer is a phenolic resin and / or the plastic contained in the first and / or the second layer is elastic and / or thermoplastic.
  • a sufficiently high dimensional stability even under tensile stress is achieved if the fabric used has a not too high reference elongation.
  • Good results are already achieved with the coated fabric according to the invention when the reference elongation of the fabric, measured at 55 daN / 5 cm, is below 4% and measured at 90 daN / 5 cm below 8%, although a fabric is preferred in which the corresponding values are below 2% or 4% and excellent results can be achieved if these values are below 1% or below 2%.
  • the reference strain is taken directly from the usual stress-strain diagram of the tensile test according to DIN 53 857 or 53 354.
  • the advantageous properties of the coated fabric according to the invention are possibly further improved by the fact that at least the second layer contains conventional inorganic fillers with a weight fraction of up to 80% of the respective layer.
  • conventional inorganic fillers for example, CaCO z.
  • Fabrics in the sense of the present invention are all known fabrics made of fibers and / or threads, for example conventional fabrics, fleeces, laid fabrics, knitted fabrics and the like, the fabric most suitable for the respective purpose being determined quickly and easily by producing appropriate test pieces can be.
  • the fabrics suitable for producing the coated fabric according to the invention generally need not have been subjected to any special pretreatment that goes beyond the usual. However, it is readily possible to use fabrics whose fibers have previously been activated and roughened by chemical action on their surface.
  • thermosets are highly cross-linked thermoset materials produced by polymerization, polycondensation or polyaddition, also called thermosets, which also include hardeners, plasticizers, catalysts and the like. may have been added.
  • synthetic resins are: polyamide, phenol, unsaturated or saturated polyester, epoxy or acrylic resins.
  • plastics are weakly crosslinked dispersible thermoplastic substances which are produced by polymerization, polycondensation or polyaddition and which, after drying, i.e. after removal of the dispersion liquid, for example water, preferably have a rough surface structure.
  • plastics based on the following are suitable: acrylic, acrylic acid esters, acrylonitrile copolymers, polyvinyl acetate, epoxy and the like.
  • the synthetic resins and plastics suitable for the coated fabric according to the invention can also be chemically related, i.e. belong to the same chemical system.
  • the flexibility or rigidity of the coated fabric according to the invention can be adapted to the respective requirements by a suitable choice of the mixing ratio of plastic and synthetic resin in the coating mixtures.
  • the first layer acts as an elastic film former with good film formation on the carrier fabric, so that the second layer is prevented from penetrating too deeply into the carrier fabric, as a result of which a high flexibility of the coated fabric according to the invention is achieved.
  • the determination of the plastic or synthetic resin content in the two layers of a sample is possible, for example, by making several sample strips with different proportions of the two mixing partners and then carrying out comparative measurements on the sample and the sample strip.
  • the customary and known methods can generally be used, in which the layers are coated in succession by doctoring, by application rollers, in immersion baths and the like. are applied in succession to the carrier fabric, wherein after the application of a layer, this layer is optionally dried in whole or in part and / or is allowed to set or harden.
  • the carrier fabric can be subjected to a chemical treatment beforehand, by means of which the threads or fibers used for the carrier fabric are activated and roughened on their surface.
  • the mixtures intended for the two layers preferably consist of a mixture of an aqueous colloidal plastic dispersion and a water-soluble synthetic resin and the appropriate chemical reactant.
  • a mixture consisting of an acrylic-based plastic, in particular acrylonitrile and acrylic acid ester copolymers, and a water-soluble synthetic resin based on phenol-formaldehyde has proven particularly useful.
  • Fillers can also be added to the layer mixtures. Depending on the type and amount of the particularly preferred inorganic fillers, the application of the first layer on the top and bottom of the fabric may be appropriate.
  • customary wetting agents can also be added to the mixtures intended to form the two layers.
  • the roughening and activation of the thread surface is usefully achieved when the mixture intended for the first layer has a pH in the range from 8 to 14 and that the mixture intended for the second layer is adjusted to a pH in the range from 7 to 14.
  • This can be achieved, for example, by adding an appropriate amount of sodium hydroxide solution (NaOH) or ammonia (NH3) to the plastic / synthetic resin mixture.
  • NaOH sodium hydroxide solution
  • NH3 ammonia
  • the alkalinity of the mixture intended to form the second layer can in this case be set to an equally high or even higher pH than that of the mixture intended for the first layer, but it is preferably set to a lower pH.
  • the coated fabric according to the invention can be used in a variety of different ways due to the excellent adhesion between the base fabric and the coating material, as well as its great flexibility, high strength and low reference elongation. Because of the advantageous properties mentioned, it is also particularly suitable for the production of all types of abrasives, which can advantageously be used for both dry and wet grinding processes, the coated fabric according to the invention also being outstandingly suitable for producing endless grinding belts. When using the coated fabric according to the invention for the production of abrasives, it has a particularly advantageous effect that an excellent adhesion of the grain binder layer to the second layer is achieved.
  • the figure shows a simplified representation of an embodiment of the coated fabric according to the invention in section.
  • the fabric 1 made of endless multifilament threads is provided with a first layer 2 both on the top and on the bottom.
  • the coating material forming the first layer 2 is partly also penetrated into the gaps existing between the individual multifilament threads of the fabric 1 and partly also between the individual filaments of the threads.
  • the second layer 3 is applied to the top of the fabric 1 above the first layer 2.
  • the finished coated fabric thus has an essentially smooth surface, while the underside still reveals the structure of the embedded fabric 1.
  • a fabric made of endless multifilament threads made of polyethylene terephthalate was used to produce a coated fabric according to the invention, the threads having the following properties:
  • This fabric was provided on both sides with a first layer, with the coating mixture being applied to both sides so much that the application quantity in the finished product was 50 g / m 2 on the front and 35 g / m 2 on the back.
  • the application amount of the second layer in the finished product was 20 g / m 2 .
  • the coated fabric of the invention thus formed was exposed to a temperature of 90 ° C. for 3 minutes.
  • Example 1 While maintaining the other data and process parameters as in Example 1, a coated fabric according to the invention was produced in the following manner or with the following properties:
  • the second layer corresponded to that of Example 2.
  • This fabric was provided with a first layer on both sides, with enough of the mixture being applied to both sides that the application quantity in the finished product was 80 g / m 2 on the front and 35 g / m 2 on the back.
  • the application amount of the second layer in the finished product was 30 g / m 2 .
  • the fabric thus coated was exposed to a temperature of 90 ° C. for 3 minutes.
  • a fabric made of endless aramid multifilaments with a titer of 1200 dtex f 750 was used to produce a coated fabric according to the invention.
  • the fabric was bound in plain weave. It was:
  • the mixture intended for the first layer corresponded to that described in Example 1, with the exception that 0.8 part by weight of a 6% strength aqueous NaOH solution was admixed with it.
  • the heat treatment of the fabric provided with the first layer also corresponded to that described in Example 1.
  • the application amount of the second layer in the finished product was 30 g / m 2 , the curing or drying conditions were: 3 min. and 95 ° C.
  • the fabric used here was a mixed fabric of endless polyester multifilament threads as weft threads and endless aramid threads as warp threads.
  • the polyester threads had a titer of 1100 dtex f 210, their density was 9 threads / cm.
  • the aramid threads had a nominal titer of 420 dtex f 250, their thread density in the fabric was 18 threads / cm.
  • the fabric was bound in plain weave and had a weight per unit area of 200 g / m 2.
  • a fabric made from an aramid fiber yarn with a titer of 1200 dtex was used.
  • the thread density of both the warp and the weft threads in the finished fabric was 9 threads / cm, which corresponds to a fabric density of 34% and a basis weight of 220 g / m 2 .
  • the fabric was bound in plain weave.
  • Abrasives with excellent properties were produced from all of the coated fabrics according to the invention produced according to the examples given.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP80103802A 1979-08-17 1980-07-04 Beschichtetes Gewebe, Verfahren zu dessen Herstellung und Verwendung Expired EP0024511B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2933307A DE2933307C2 (de) 1979-08-17 1979-08-17 Beschichtetes textiles Flächengebilde
DE2933307 1979-08-17

Publications (3)

Publication Number Publication Date
EP0024511A2 EP0024511A2 (de) 1981-03-11
EP0024511A3 EP0024511A3 (en) 1981-12-02
EP0024511B1 true EP0024511B1 (de) 1984-05-02

Family

ID=6078650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103802A Expired EP0024511B1 (de) 1979-08-17 1980-07-04 Beschichtetes Gewebe, Verfahren zu dessen Herstellung und Verwendung

Country Status (4)

Country Link
US (1) US4405341A (fi)
EP (1) EP0024511B1 (fi)
DE (1) DE2933307C2 (fi)
FI (1) FI69321C (fi)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559975A (en) * 1982-02-18 1985-12-24 Stits Raymond M High tenacity polyester filament fabric
US4688778A (en) * 1982-10-01 1987-08-25 Isosport Verbundbauteile Ges.M.B.H. Plastic leaf spring
US4474585A (en) * 1983-05-31 1984-10-02 Norton Company Synthetic yarn-reinforced flexible webs stabilized against elongation, coated abrasive thereon, and process therefor
JPH066918Y2 (ja) * 1987-01-14 1994-02-23 日本バイリーン株式会社 自動車用内装材
DE3726855C2 (de) * 1987-08-12 1996-12-12 Wendt Gmbh Abrichtrolle und Verfahren zu deren Herstellung
DE8802927U1 (fi) * 1987-12-15 1988-05-05 Braasch, Gerd, 4475 Soegel, De
US4970110A (en) * 1989-03-29 1990-11-13 Carla Miraldi Process for improving the tear resistance of hosiery
US5275700A (en) * 1990-06-29 1994-01-04 The Procter & Gamble Company Papermaking belt and method of making the same using a deformable casting surface
US5260171A (en) * 1990-06-29 1993-11-09 The Procter & Gamble Company Papermaking belt and method of making the same using a textured casting surface
US5098522A (en) * 1990-06-29 1992-03-24 The Procter & Gamble Company Papermaking belt and method of making the same using a textured casting surface
CA2155222C (en) * 1990-06-29 1997-11-11 Paul Dennis Trokhan Process for making absorbent paper web
US5316812A (en) * 1991-12-20 1994-05-31 Minnesota Mining And Manufacturing Company Coated abrasive backing
US5815853A (en) * 1994-04-04 1998-10-06 General Foam Plastics Reinforced swimming pool
US5582625A (en) * 1995-06-01 1996-12-10 Norton Company Curl-resistant coated abrasives
US6103643A (en) * 1998-07-15 2000-08-15 E. I. Du Pont De Nemours And Company High performance fabrics for cartridge filters
DE19840657A1 (de) * 1998-09-05 2000-03-09 Wandmacher Gmbh & Co Awuko Sch Schleifpapier
AU6977901A (en) * 2000-06-09 2001-12-17 Procter & Gamble Biodegradable coated substrates
CN1289170C (zh) * 2001-08-09 2006-12-13 大日本油墨化学工业株式会社 耐热性过滤器
US6777044B1 (en) 2002-07-02 2004-08-17 Eric Daniel Andre Jeandemange Resin coated fabric containers and furniture panels and method of making the same
US20040162010A1 (en) * 2003-02-04 2004-08-19 Nihon Microcoating Co., Ltd. Polishing sheet and method of producing same
US20080102720A1 (en) * 2006-10-30 2008-05-01 3M Innovative Properties Company Abrasive article and method of making and using the same
WO2008079708A1 (en) * 2006-12-20 2008-07-03 3M Innovative Properties Company Coated abrasive disc and method of making the same
DE102007011566A1 (de) * 2007-03-08 2008-09-11 Teijin Monofilament Germany Gmbh Haftungsaktivierte Polyestermonofilamente, Elastomerverbunde und deren Verwendung
CN103442763B (zh) 2011-03-15 2016-11-09 瑞思迈有限公司 空气输送管道
DE102013224549A1 (de) 2013-11-29 2015-06-03 Neenah Gessner Gmbh Schleifmittelträger, Schleifartikel umfassend den Schleifmittelträger sowie deren Herstellungsverfahren
US9863140B2 (en) 2014-09-18 2018-01-09 Clinton Dowd Insulation retention apparatus for use with overhead structural beams and related methods

Family Cites Families (13)

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BE543880A (fi) * 1954-12-23 1900-01-01
DE1199224B (de) * 1963-01-22 1965-08-26 Glanzstoff Ag Verfahren zur Verbesserung der Gummihaftung von Reifencord aus Polyaethylenterephthalat
DE1619228B2 (de) * 1967-04-21 1976-03-04 Dr. Kurt Herberts & Co GmbH vorm. Otto Louis Herberts, 5600 Wuppertal; Steiner, Thomas, Dr., 1000 Berlin Verfahren zur kontinuierlichen herstellung von zur oberflaechenverguetung von spanplatten geeigneten, mit polymeren impraegnierten und waermegehaerteten faservliesen oder -geweben
US3493414A (en) * 1967-10-12 1970-02-03 Ashland Oil Inc Epoxy/polyester compositions
DE6750394U (de) * 1968-09-11 1969-01-09 Hammersteizner Kunstleder Gmbh Kunststoffbeschichtetes traegergewebe
DE1804101A1 (de) * 1968-10-19 1970-04-30 Degussa Mit schmiegsam eingestelltem Kunststoff beschichtete Gewebebahn
US3794548A (en) * 1970-04-02 1974-02-26 Hooker Chemical Corp Method of introducing breathability to a non-porous continuous plastic film
DE2434328C3 (de) * 1974-07-17 1979-10-11 Dynamit Nobel Ag, 5210 Troisdorf Schutzlage für Flächendichtungen im Hoch-, Tief- und Ingenieurbau und Verfahren zum kontinuierlichen Herstellen der Schutzlage
DE2631401A1 (de) * 1976-07-13 1978-01-19 Ruthard Marowsky Kunststoffbauteil mit textil-armierung
DE2635114A1 (de) * 1976-08-04 1978-02-09 Ver Seidenwebereien Ag Gasdichtes, thermobestaendiges textilerzeugnis
DE2635098A1 (de) * 1976-08-04 1978-02-09 Ver Seidenwebereien Ag Verfahren zum herstellen eines flachen textilerzeugnisses
DE2644552B2 (de) * 1976-10-02 1978-11-30 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von Schleifmitteln
US4233358A (en) * 1978-10-13 1980-11-11 Clemead Limited Method for the production of waterproof and like fabrics

Also Published As

Publication number Publication date
FI69321B (fi) 1985-09-30
FI69321C (fi) 1986-01-10
DE2933307A1 (de) 1981-02-26
DE2933307C2 (de) 1984-10-31
US4405341A (en) 1983-09-20
FI802413A (fi) 1981-02-18
EP0024511A3 (en) 1981-12-02
EP0024511A2 (de) 1981-03-11

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