EP0151170A1 - Toile a bache de protection et son procede de fabrication. - Google Patents

Toile a bache de protection et son procede de fabrication.

Info

Publication number
EP0151170A1
EP0151170A1 EP84902919A EP84902919A EP0151170A1 EP 0151170 A1 EP0151170 A1 EP 0151170A1 EP 84902919 A EP84902919 A EP 84902919A EP 84902919 A EP84902919 A EP 84902919A EP 0151170 A1 EP0151170 A1 EP 0151170A1
Authority
EP
European Patent Office
Prior art keywords
fabric
polyacrylic acid
base fabric
protective tarpaulin
acid ester
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.)
Granted
Application number
EP84902919A
Other languages
German (de)
English (en)
Other versions
EP0151170B1 (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
LAICHINGEN LEINENWEBEREI
Original Assignee
Mechanische Leinenweberei Laichingen Drr Woernle & Co GmbH
LAICHINGEN LEINENWEBEREI
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, LAICHINGEN LEINENWEBEREI 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 and a method for its production.
  • the waterproofing of heavy fabrics is carried out in a customary manner in two or more bath processes, a water-insoluble metal soap being produced on the goods and the fabric pores additionally being closed by fillers and paraffin or the like (see W. Bernard, "Appretur der Textilien", 2nd edition 1967, Springer-Verlag, pages 326 ff).
  • absolutely waterproof fabrics can be obtained by coating, where as coating agent i.a. Polyvinyl chloride is used.
  • the object of the invention is therefore to provide waterproof, heat-reflecting tarpaulin fabrics which are distinguished by a low overall weight.
  • this object is achieved in that a polyester lightweight fabric of at most 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 totaling 25 to 80 make up g / m 2 .
  • the process according to the invention for the production of waterproof, heat-reflecting protective tarpaulin fabrics is characterized in that at least one line (corresponding to one layer) by means of an aqueous, pigment-containing, cross-linkable material on an optionally pretreated polyester lightweight fabric of maxiral 160 g / m 2 as base fabric
  • 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 solid coatings on the base fabric.
  • 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 araid 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 - also to be understood as meaning those which contain reactive comonomers which have a suitable curing or crosslinking agent, e.g. need conventional aminoplast resins or silanes and / or siloxanes containing amino groups.
  • suitable curing or crosslinking agent e.g. need conventional aminoplast resins or silanes and / or siloxanes containing 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.
  • the 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 total copolymer.
  • 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 in amounts of 45-99.0% by weight.
  • comonomers for example vinyl acetate, ethylene, styrene, vinyl chloride and particularly preferably acrylonitrile, are also copolymerized in the polymers used. These comonomers are present in amounts of up to 40% by weight, based on the total polymer.
  • crosslinkable polyacrylic acid esters described come in the form of about 30-70% by weight. % dispersions in the trade.
  • Pigments are incorporated into the crosslinkable polyacrylic acid ester dispersions. mixed in, which favor the 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.
  • other heat-reflecting pigments such as polyester flicker or mica, are also very suitable.
  • the amount of pigment can vary within wide limits. Already 5% by weight, based on cross-linked 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 the majority of pigment into the second and add another line, 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.
  • the aliphatic 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. Pretreatment improves film adhesion somewhat.
  • 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 coat of the pigment-containing polyacrylic acid ester and dried in between. 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.
  • the polyurethane is then applied as a top coat, also preferably 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 the like is also readily possible and is also expedient and advantageous from case to case.
  • 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 such a light yet mechanically strong protective tarpaulin material would be possible to deliver.
  • 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 / 1 phosphate complexing agent), rinsed at 90 ° C. for 20 minutes and dried and 60 seconds at 190 ° C heat set.
  • the fabric is then pre-fouled with the following aqueous liquor
  • 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 following paste is used for the first stroke, applied with a squeegee:
  • the pH should not be above 7.
  • the second coat is also applied with a squeegee using the same paste, but containing 100 pbw of aluminum powder.
  • the protective tarpaulin has a very considerable heat reflection.
  • 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 coating is also carried out in the manner described in Example 1, but the following coating pastes and a total coating of 60 g / m 2 are used:
  • 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 fabric 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.
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 true EP0151170A1 (fr) 1985-08-14
EP0151170B1 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
AU4578099A (en) * 1998-06-17 2000-01-05 Milliken & Company Polyurethane/polyacrylate dispersion coating for airbag fabrics
DE102004016773B3 (de) * 2004-04-01 2005-11-17 Sattler Ag Beschichtungsmittel für Sonnenschutzartikel
WO2016178057A1 (fr) * 2015-05-04 2016-11-10 Pratrivero S.P.A. Procédé de fabrication d'un tissu multicouche ignifuge et/ou étanche à l'eau, et tissu multicouche ignifuge et/ou étanche à l'eau
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8500626A1 *

Also Published As

Publication number Publication date
DE3460990D1 (en) 1986-11-20
DE3327016A1 (de) 1985-02-14
WO1985000626A1 (fr) 1985-02-14
EP0151170B1 (fr) 1986-10-15
DE3327016C2 (de) 1986-09-25

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