EP0151170B1 - Toile a bache de protection et son procede de fabrication - Google Patents

Toile a bache de protection et son procede de fabrication Download PDF

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Publication number
EP0151170B1
EP0151170B1 EP84902919A EP84902919A EP0151170B1 EP 0151170 B1 EP0151170 B1 EP 0151170B1 EP 84902919 A EP84902919 A EP 84902919A EP 84902919 A EP84902919 A EP 84902919A EP 0151170 B1 EP0151170 B1 EP 0151170B1
Authority
EP
European Patent Office
Prior art keywords
polyacrylic acid
fabric
acid ester
protective tarpaulin
cross
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
EP84902919A
Other languages
German (de)
English (en)
Other versions
EP0151170A1 (fr
Inventor
Peter Woernle
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.)
Mechanische Leinenweberei Laichingen Drr Woernle & Co GmbH
Original Assignee
Mechanische Leinenweberei Laichingen Drr Woernle & Co 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
Application filed by Mechanische Leinenweberei Laichingen Drr Woernle & Co GmbH filed Critical Mechanische Leinenweberei Laichingen Drr Woernle & Co GmbH
Priority to AT84902919T priority Critical patent/ATE22943T1/de
Publication of EP0151170A1 publication Critical patent/EP0151170A1/fr
Application granted granted Critical
Publication of EP0151170B1 publication Critical patent/EP0151170B1/fr
Expired legal-status Critical Current

Links

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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other

Definitions

  • the invention relates to a waterproof, heat-reflecting tarpaulin material and a method for its production.
  • the waterproofing of heavy fabrics is carried out in a customary manner in a two- or multi-bath process, a water-insoluble metal soap being produced on the goods and the fabric pores being additionally closed by fillers and paraffin or the like (see W. Bernard, "Finishing der Textilien “, 2nd edition 1967, Springer-Verlag, pages 326 ff).
  • Absolutely watertight fabrics can be obtained by coating, using as coating agent, among other things. Polyvinyl chloride is used.
  • the invention is therefore based on the object of providing waterproof, heat-reflecting tarpaulin fabrics which are distinguished by a low overall weight.
  • this object is achieved in that a polyester lightweight fabric of maximum 160 g / m 2 is provided on one side with at least one pigment-containing layer of a crosslinked polyacrylic acid ester and a cover layer made of polyurethane, preferably aliphatic polyurethane, the coatings being a total of 25 to 80 make up g / m 2 .
  • the process according to the invention for producing waterproof, heat-reflecting tarpaulin fabrics is characterized in that, on an optionally pretreated polyester lightweight fabric of at most 160 g / m 2 as the base fabric, at least one line (corresponding to one layer) is crosslinkable by means of an aqueous, pigment-containing one Polyacrylic acid ester dispersion and a top coat using a polyurethane, preferably aliphatic polyurethane, are applied with the use of customary auxiliaries, with intermediate drying, with only enough solid being applied during the individual coats that the finished tarpaulin material contains 25 to 80 g / m 2 of solid support on the base fabric.
  • a polyurethane preferably aliphatic polyurethane
  • Polyester lightweight fabric has proven to be particularly suitable as the base fabric for the protective tarpaulin fabrics according to the invention, although the same can also be reinforced by small amounts of aramid threads.
  • Lightweight fabrics are to be understood to mean those whose square meter weight is between 80 and 160 g, in particular between 90 and 120 g.
  • Protective tarpaulin fabrics with a particularly smooth surface are obtained if a light polyester filament fabric is used as the base fabric, which is why this type of fabric is particularly preferred.
  • the crosslinkable polyacrylic acid esters that can be used are known from the prior art.
  • the crosslinkable polyacrylic acid esters contain as reactive groups e.g. N-methylol groups, especially carboxamide methylol groups.
  • Etherified N-methylol groups where alcohols containing one to three carbon atoms, in particular methanol, have been used for the etherification, are also suitable as crosslinkable groups.
  • the monomers which carry these crosslinkable groups are generally known. N-addition products of formaldehyde with methacrylamide or acrylamide and allyl or methallyl carbamate may be mentioned.
  • crosslinkable polyacrylic acid esters can also be used as reactive groups e.g. Contain glycidyl residues. These comonomers are also well known. An example is allyglycidyl ether.
  • crosslinkable polyacrylic acid esters are also - and this group of copolymers is preferred - to be understood as meaning those which contain reactive comonomers which have a suitable curing or crosslinking agent, e.g. Need conventional silanes and / or siloxanes containing amino resins or amino groups.
  • suitable curing or crosslinking agent e.g. Need conventional silanes and / or siloxanes containing amino resins or amino groups.
  • examples of such comonomers are those which have free OH groups, e.g. 2-hydroxyethyl and 3-hydroxypropyl acrylate or methacrylate.
  • Unsaturated carboxylic acids, e.g. Acrylic acid and methacrylic acid and their amides lead to crosslinked polyacrylic acid esters with aminoplast resins. The latter are very preferably polymerized in, since these protective tarpaulin materials with these coatings are characterized by a particularly good overall result.
  • copolymers used can also contain several of the comonomers mentioned.
  • the amounts of comonomers with crosslinkable groups are about 1.0 to 15, in particular 2 to 10,% by weight, based on the copolymer as a whole.
  • the monomers also contained in the polyacrylic acid esters are also known.
  • methacrylic or acrylic acid esters for example methacrylic or acrylic acid esters of alcohols having one to eight carbon atoms, such as methanol, ethanol, butanol, isobutanol or 2-ethylhexanol, which are generally obtained in amounts of 45-99.0% by weight on the entire polyacrylic ester copolymer
  • other comonomers for example vinyl acetate, ethylene, styrene, vinyl chloride and particularly preferably acrylonitrile, are copolymerized in the polymers used.
  • These comonomers are in amounts up to 40 % By weight, based on the total polymer, contained.
  • crosslinkable polyacrylic acid esters described come on the market in the form of about 30-70% by weight dispersions.
  • Pigments are mixed into the cross-linkable polyacrylic acid ester dispersions, which promote heat reflection.
  • Metal powders are particularly suitable as such pigments. Examples of metals that can be mentioned are aluminum, nickel, silver, zinc and alloys such as brass, bronze, aluminum-bronze and the like. Aluminum and aluminum-bronze are preferred for economic reasons.
  • heat-reflecting pigments e.g. Polyester flicker or mica are very suitable.
  • the amount of pigment can vary within wide limits. Already 5% by weight, based on crosslinked polyacrylic acid esters, has a clear effect. It preferably contains 8-30% by weight, particularly preferably 10-25% by weight, based on crosslinked polyacrylic acid esters.
  • the upper limit is determined by economic considerations, but also by decreasing adhesion and fastness to rubbing of the polymer film, and is approximately 60% by weight, based on crosslinked polyacrylic acid esters. If two or more coats of crosslinkable polyacrylic acid ester are used, it has proven useful to mix only a small amount of pigment, about a quarter to a third of the total amount of pigment, with the first coat and to incorporate the predominant amount of pigment into the second and further coats , as this significantly improves the film's adhesion. However, it is also possible to do without the pigment addition in the first stroke, but this method of working is less suitable.
  • the polyurethanes used for the top coat also belong to the prior art. It is therefore not necessary to go into these connections in more detail. Alipathic polyurethanes are particularly suitable because they have improved light fastness.
  • the top coat can be done either from an aqueous or organic medium.
  • the raw polyester lightweight fabrics are washed in a known manner and then optionally pretreated as usual. The pre-treatment slightly improves the film adhesion.
  • the coating itself is also carried out in a known manner.
  • the light polyester base fabric is coated on one side with at least one line of the pigment-containing polyacrylic acid ester and then dried. It is particularly preferred to work with two layers of polyacrylic acid ester, the small amounts required being applied preferably by means of an air knife. Then the polyurethane is used as a top coat; also preferably applied with an air knife (for further details see examples).
  • the usual auxiliaries such as crosslinking agents, thickeners, pH regulators, etc. are also used in the application.
  • the simultaneous use of conventional aminoplast resins, water repellents, color pigments and. Similar ones are easily possible and, from case to case, also expedient and advantageous.
  • the amounts of such additives are known to the person skilled in the art.
  • a protective tarpaulin material is obtained which is distinguished from the known products by remarkable, surprising advantages. Because of the state of the art it was not to be expected that it would be possible to produce such a light yet mechanically strong protective tarpaulin material.
  • the special base fabric used and the addition of the heat-reflecting pigments to the crosslinkable polyacrylic acid esters make it possible to manufacture the advantageous tarpaulin fabrics in a simple manner. This is not only characterized by its high strength and low weight, but also leaves nothing to be desired in terms of water resistance and heat reflection.
  • the articles made from it, especially tarpaulins allow easy handling and are therefore easy to use.
  • a polyester filament fabric (110 g / m 2 ) is prewashed in the customary manner (2 g / 1 anionic wetting agent, 2 g / 1 calcined soda and 3 g / l phosphate complexing agent), rinsed at 90 ° C. for 20 minutes and dried and 60 seconds at 190 ° C heat set.
  • the coating is carried out in three layers by means of an air knife, a total solid coating of 40 g / m 2 being obtained.
  • the second coat is also applied with a doctor blade using the same paste, which however contains 100 pbw of aluminum powder.
  • Example 1 is repeated, but using polyester flicker instead of aluminum powder.
  • polyester filament fabric described there in Example 1 is washed and pretreated in the manner described there.
  • the top coat is produced in accordance with EP-A-41 607, Example 1.
  • a light polyester fabric (130 g / m 2 ) is finished in the manner described in Example 2 (total solid layer 50 g / m 2 ).
  • the technological properties of the tarpaulin material correspond to the values obtained there.
  • Example 1 is repeated, but only 2 lines are applied, in accordance with the 2nd line (now 1st line) described in Example 1 and the top line described in Example 1.
  • the total application quantity is 45 g / m 2 .
  • the tarpaulin fabric obtained is technologically sound.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Toile à bâche de protection, étanche à l'eau, réfléchissant la chaleur, à plusieurs couches, formée d'un tissu léger de polyester résistant à la déchirure de 160g/m2 au maximum en tant que tissu de base, dotée d'un côté d'au moins une couche pigmentifère d'un ester d'acide polyacrylique réticulé et d'une couche de couverture composée de polyuréthane, les enduction représentant au total de 25 à 80 g/m2. On utilise surtout des pigments réfléchissant la chaleur, comme en particulier des pigments provenant de l'aluminium ou du bronze d'aluminium. En outre, au cours d'un procédé de fabrication de la toile à bâche de protection conforme à la présente invention, qui est caractérisée par le fait que sur un tissu léger de polyester le cas échéant prétraité de 160g/m2 au maximum et servant de tissu de base est appliquée d'un côté au moins une couche au moyen d'une dispersion d'ester d'acide polyacrylique aqueuse, pigmentifère et pouvant se réticuler, ainsi qu'une couche de couverture au moyen d'un polyuréthane, de préférence un polyuréthane aliphatique, avec utilisation des adjuvants usuels et séchage intermédiaire, l'application de matière solide pendant les diverses enductions étant telle que la toile à bâche de protection finie comporte un dépôt de matière solide sur le tissu de base allant de 25 à 80 g/m2.

Claims (12)

1. Toile à bâche de protection, imperméable et réfléchissant la chaleur, caractérisée en ce qu'un tissu léger en polyester, éventuellement prétraité, de 160 g/m2 au maximum, servant de tissu de base, est muni, d'un côté, d'au moins une couche pignentée d'un polyacrylate réticulé et d'une couche extérieure en polyuréthanne, de préférence en polyuréthane aliphatique, les enductions représentant en tout de 25 à 80 g/ m2.
2. Toile à bâche de protection suivant la revendication 1, caractérisée en ce que le tissu de base est un tissu en filaments de polyester, de 90 à 120 g/m2.
3. Toile à bâche de protection suivant la revendication 1 ou 2, caractérisée en ce que le tissu de base est muni de deux couches pigmentées d'un polyacrylate réticulé.
4. Toile à bâche de protection suivant l'une des revendications 1 à 3, caractérisée en ce que les enductions représentent de 30 à 50 g/m2.
5. Toile à bâche de protection suivant l'une des revendications 1 à 4, caractérisée en ce que le tissu de base est muni d'une couche d'un polyacrylate réticulé contenant un métal.
6. Toile à bâche de protection suivant la revendication 5, caractérisée en ce qu'il est prévu, comme métal, du bronze d'aluminium ou de l'aluminium.
7. Procédé de fabrication de la toile à bâche de protection, étanche et réfléchissant la chaleur, suivant la revendication 1, caractérisé en ce qu'il consiste à déposer, avec co-utilisation d'adjuvants habituels, et avec séchage intermédiaire, sur un tissu léger en polyester éventuellement prétraité de 160 g/m2 au maximum, servant de tissu de base, d'un côté, au moins un enduit (correspondant à une couche) au moyen d'une dispersion aqueuse d'un polyacrylate pigmenté pouvant être réticulée, et une couche extérieure au moyen d'un polyuréthanne, de préférence d'un polyuréthanne aliphatique, en déposant pendant les enductions individuelles de la matière solide seulement en une quantité telle que la toile à bâche de protection finie contienne de 25 a 80 g/m2 de dépôt de matières solides sur le tissu de base.
8. Procédé suivant la revendication 7, caractérisé en ce qu'il consiste à utiliser, comme tissu de base, un tissu en filaments de polyester de 90 à 120 g/m2.
9. Procédé suivant la revendication 7 ou 8, caractérisé en ce qu'il consiste à déposer, sur le tissu de base, deux enduits, déposés à la racle à air comprimé, du polyacrylate pigmenté et pouvant être réticulé.
10. Procédé suivant l'une des revendications 7 à 9, caractérisé en ce que la toile à bâche de protection finie contient de 30 à 50 g/m2 de dépôt de matières solides.
11. Procédé suivant l'une des revendications 7 à 10, caractérisé en ce qu'il consiste à déposer des polyacrylates contenant un métal et pouvant être réticulés.
12. Procédé suivant la revendication 11, caractérisé en ce qu'il consiste à déposer un polyacrylate contenant du bronze d'aluminium ou de l'aluminium et pouvant être réticulé.
EP84902919A 1983-07-27 1984-07-19 Toile a bache de protection et son procede de fabrication Expired EP0151170B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902919T ATE22943T1 (de) 1983-07-27 1984-07-19 Schutzplanenstoff und verfahren zu dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3327016 1983-07-27
DE3327016A DE3327016C2 (de) 1983-07-27 1983-07-27 Schutzplanenstoff und Verfahren zu dessen Herstellung

Publications (2)

Publication Number Publication Date
EP0151170A1 EP0151170A1 (fr) 1985-08-14
EP0151170B1 true EP0151170B1 (fr) 1986-10-15

Family

ID=6205015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84902919A Expired EP0151170B1 (fr) 1983-07-27 1984-07-19 Toile a bache de protection et son procede de fabrication

Country Status (3)

Country Link
EP (1) EP0151170B1 (fr)
DE (2) DE3327016C2 (fr)
WO (1) WO1985000626A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4354645B2 (ja) * 1998-06-17 2009-10-28 ミリケン・アンド・カンパニー エアバッグ布地用ポリウレタン／ポリアクリレート分散コーティング
DE102004016773B3 (de) * 2004-04-01 2005-11-17 Sattler Ag Beschichtungsmittel für Sonnenschutzartikel
US20180282941A1 (en) * 2015-05-04 2018-10-04 Pratrivero S.P.A. Method for producing a flameproof and/or waterproof multilayer fabric and flameproof and/or waterproof multilayer fabric
CN105088807A (zh) * 2015-09-22 2015-11-25 浙江新达经编有限公司 一种防老化高强度复合面料及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226072B (de) * 1957-05-18 1966-10-06 Roehm & Haas Gmbh Verfahren zum Beschichten textiler Gebilde
FR1394801A (fr) * 1964-01-28 1965-04-09 Cellophane Sa Procédé de fabrication d'un tissu enduit pour vêtements
DE1247259B (de) * 1964-05-19 1967-08-17 Bayer Ag Verfahren zur Erzeugung von loesungsmittelbestaendigen Textilbeschichtungen
DE2013265A1 (en) * 1970-03-20 1971-10-14 Dr. Th. Böhme KG, Chem. Fabrik, 8192 Gartenberg Solvent resistant grained leather prepn
GB1353609A (en) * 1970-06-09 1974-05-22 Nairn Williamson Ltd Production of coated fabrics
CH539729A (it) * 1970-07-01 1973-07-31 Sir Soc Italiana Resine Spa Procedimento per la fabbricazione di materiali poromerici

Also Published As

Publication number Publication date
DE3327016C2 (de) 1986-09-25
DE3327016A1 (de) 1985-02-14
EP0151170A1 (fr) 1985-08-14
WO1985000626A1 (fr) 1985-02-14
DE3460990D1 (en) 1986-11-20

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