WO2022129163A1 - Surface textile enduite - Google Patents

Surface textile enduite Download PDF

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Publication number
WO2022129163A1
WO2022129163A1 PCT/EP2021/085877 EP2021085877W WO2022129163A1 WO 2022129163 A1 WO2022129163 A1 WO 2022129163A1 EP 2021085877 W EP2021085877 W EP 2021085877W WO 2022129163 A1 WO2022129163 A1 WO 2022129163A1
Authority
WO
WIPO (PCT)
Prior art keywords
textile fabric
polymer blend
polyethylene
coating
carrier layer
Prior art date
Application number
PCT/EP2021/085877
Other languages
German (de)
English (en)
Inventor
Wolfgang Josef BRENNER
Nicole Schuster
Carina Erdmann
Lothar SZYMKOWIAK
Thomas STRAUBE
Original Assignee
Mehler Texnologies 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 Mehler Texnologies Gmbh filed Critical Mehler Texnologies Gmbh
Priority to AU2021403582A priority Critical patent/AU2021403582A1/en
Priority to EP21831036.5A priority patent/EP4263930A1/fr
Priority to CN202180081719.0A priority patent/CN116745486A/zh
Priority to US18/265,607 priority patent/US20240093427A1/en
Priority to CA3200901A priority patent/CA3200901A1/fr
Publication of WO2022129163A1 publication Critical patent/WO2022129163A1/fr

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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
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
    • 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
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
    • 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
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0036—Polyester fibres
    • 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
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0038—Polyolefin fibres
    • 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
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • 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
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/02—Synthetic macromolecular fibres
    • D06N2201/0254—Polyolefin fibres
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/042—Polyolefin (co)polymers
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/045—Vinyl (co)polymers
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/02—Agriculture
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/06—Building materials
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/125—Awnings, sunblinds
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/16—Geotextiles

Definitions

  • the invention relates to a textile fabric with a surface coating.
  • Coated textiles are well known.
  • Polyvinyl chloride (PVC) is often used as the coating material.
  • PVC Polyvinyl chloride
  • a knitted fabric made of polyester fibers is coated with PVC in a reverse process.
  • WO 2012/022626 it is known from the document WO 2012/022626 to coat a carrier material with a coating material composed of a polyolefin homopolymer or a polyolefin copolymer.
  • Document CN 110725135 discloses a textile fabric in which a coating made from a combination of polyethylene and ethylene vinyl acetate copolymer is used.
  • the proportion of ethylene-vinyl acetate copolymer is in the range of at most 25% by weight and the application of the textile fabric is considered to be primarily in the field of household goods.
  • US Pat. No. 3,660,150 also describes a textile fabric with a surface coating.
  • the surface coating can also consist of a mixture of polyethylene and ethylene vinyl acetate copolymer.
  • WO 2018/104101 also discloses a textile fabric with a carrier layer made of, for example, polyethylene, with the fabric on at least one surface has a coating of a blend of polyethylene and polyethylene-vinyl acetate.
  • the textile fabric of WO 2018/104101 is a fleece that is coated by means of spray impregnation and is used in wheel housings of automobiles for noise suppression, but at the same time shows good dirt and ice resistance.
  • a disadvantage of the known coated textiles is that toxic decomposition products are often produced when the textiles are incinerated or disposed of as waste if, for example, polyvinyl chloride (PVC) is used as the coating material.
  • PVC polyvinyl chloride
  • the disadvantage of using polyolefins as a coating material is that the processes for further processing such coated textiles (for example the coating or the provision of finished products) are often very complex.
  • the object is achieved by a textile fabric with a woven carrier layer, the carrier layer consisting at least of polyethylene and/or polyester fibers.
  • a surface coating is applied to at least one of the surfaces of the carrier layer, the surface coating consisting of at least one polymer blend, the polymer blend having at least one mixture of polyethylene (PE) and polyethylene-vinyl acetate (PEVA).
  • the proportion of polyethylene-vinyl acetate in the polymer blend is at least 40% by weight, based on the total weight of the polymer blend.
  • the textile fabric of the present invention can be further processed with paints that would not or only poorly adhere to a pure PE coating.
  • the textile fabric according to the invention has a surface coating that is more weather-resistant than PVC coatings and also emits fewer pollutants.
  • a textile fabric with the described proportion of polyethylene-vinyl acetate can be further processed particularly advantageously by means of high-frequency welding, as a result of which the textile fabric is easier to process further and new applications for the textile fabric are also possible.
  • the surface of the woven carrier layer coated in this way has a very smooth surface, so that it can be printed in a simple and diverse manner.
  • the textile fabric according to the invention is therefore particularly suitable for use, for example, as a tarpaulin or cover for trucks or as woven fabrics of any kind.
  • a surface coating consisting of at least one polymer blend should be understood to mean when the surface coating consists entirely of the polymer blend or consists predominantly of the polymer blend.
  • the surface coating consists of more than 70% by weight, more than 80% by weight, more than 90% by weight or 100% by weight of the polymer blend, based on the total weight of the surface coating.
  • polyethylene-vinyl acetate is abbreviated as PEVA, polyethylene as PE, and vinyl acetate as VA.
  • PEVA polyethylene-vinyl acetate
  • PE polyethylene
  • VA vinyl acetate
  • PVC polyvinyl chloride
  • the polymer blend has a proportion of PEVA in the polymer blend of 45% by weight, preferably 49% by weight, more preferably 50% by weight and more preferably 55% by weight and even more preferably 60% by weight, based on the total weight of the polymer blends.
  • the polyethylene-vinyl acetate in the polymer blend has a vinyl acetate (VA) content of 5-50% by weight, preferably 10-40% by weight, more preferably 15 to 30% by weight, even more preferably 20 to 25% by weight % based on the weight in the polymer blend.
  • VA vinyl acetate
  • the textile fabric can be processed by means of high-frequency welding from a proportion of about 10% by weight of vinyl acetate (based on the total weight of the polymer blend), which is also not possible with a pure PE coating.
  • several options are available for the further processing of the textile fabric, which then ultimately also expand the field of application of the textile fabric.
  • the proportion of approximately 10% by weight of vinyl acetate in the polymer blend gives the surface coating or the textile fabric a flexibility and softness such as can be found, for example, in soft polyvinyl chloride.
  • the polyethylene-vinyl acetate in the polymer blend has a vinyl acetate fraction of 15% by weight to more than 40% by weight, based on the total weight of the polyethylene-vinyl acetate.
  • the PEVA material in the polymer blend becomes rubbery, which means that it can be used in the area of bags, films or shoe manufacture (in particular soles), for example.
  • the polymer blend also includes polypropylene in addition to the PEVA and the PE.
  • the polymer blend has a mixture of polyethylene and polyethylene-vinyl acetate, it being possible for the mixture to achieve certain properties in terms of the processability of the coating.
  • the polyethylene has a melting point of 135-145°C, which means that it can be easily processed on melt calender systems.
  • Polyethylene vinyl acetate has a variable melting point that depends on the vinyl acetate content. A proportion of about 7% by weight of vinyl acetate in the polyethylene-vinyl acetate, for example, results in a melting point of about 104° C. and a proportion of 28% by weight of vinyl acetate results in a melting point of about . 70°C.
  • a mixture of PE and PEVA in the areas mentioned above allows processing on standard calender systems and a previous extrusion step. Pure PEVA would probably be difficult to process on conventional calenders.
  • PEVA By adding PEVA to PE, mixing properties of both polymers can be obtained, such as high-frequency weldability or improved weathering stability and less tendency to form stress cracks through the PEVA.
  • PE itself has good chemical resistance.
  • the textile fabric, or the surface coating of the textile fabric can advantageously be heated by means of high-frequency energy in the form of an electromagnetic field (high-frequency welding).
  • high-frequency welding Under the heat and pressure, the surface coating of the fabric begins to melt and can thus be fused to other parts of the fabric, to other fabrics of the same or different type (fusible) or to whole other materials (e.g. with a coating of PE material).
  • no heat is supplied from the outside, which means that fewer protective measures for occupational safety are required.
  • the heat is generated in the textile fabric or in the surface coating of the textile fabric and is therefore particularly effective.
  • the different materials fuse together and a weld seam is formed.
  • a very strong connection can be brought about in this way, which also does not impair the weather resistance, for example the water impermeability, of the textile fabric.
  • Another advantage of this type of connection of the textile fabric is that the process described does not produce a large amount of harmful vapors or combustion residues over a large area.
  • the high-frequency welding can also cause the fibers of the carrier layer to melt completely or at least partially. Partially melted or completely melted fibers within the seam can give the seam a certain stability which, for example, facilitates the shaping of the textile fabric.
  • the textile fabric can also advantageously be connected to other materials by means of other (conventional) welding processes.
  • the textile fabric can be connected to other textile fabrics with a coating of polyethylene and/or polypropylene by means of hot-air welding.
  • an adhesion value of more than about 50 N/cm could be measured without edge waviness.
  • an adhesion value could also be obtained without edge waviness of more than about 50 N/cm can be measured.
  • the adhesion value is determined using the ISO 2411:2017 (EN ISO 2411:2017) standard, whereby the second method of sample preparation of the standard is to be used and the values are to apply to the measurement of test specimens that are in the machine direction (i.e in warp direction) can be measured.
  • the carrier layer is made up entirely of fibers made of polyethylene and/or polyester. In a preferred embodiment, the carrier layer is made up entirely of polyester fibers. Completely constructed means that the carrier layer is made up of more than 80%, preferably more than 90% and particularly preferably 100% of the fibers mentioned.
  • the backing layer is preferably constructed from a yarn blend of fibers of polyethylene and polyester.
  • high-strength polyethylene fibers such as those available under the trade names Dyneema (from DSM B.V.) or Spectra (from Honeywell International) can be used as the polyethylene fibers.
  • Diolen®, from Polyester High Performance Fibers, for example, can be used as polyester fibers.
  • a carrier layer made up of said fibers or a mixture of said fibers has the advantage that the carrier layer is easy to produce and can be adapted to various technical requirements, such as strength of the carrier layer, thanks to the wide range of possible fiber types.
  • the term fiber should be understood to mean both endless fibers and staple fibers or short fibers.
  • the fibers can belong both to a multifilament yarn and to a monofilament yarn.
  • the polymer blend of the surface coating has less than 51% by weight polyethylene based on the total weight of the polymer blend. In one embodiment, the polymer blend consists of at least 95% by weight of a combination of polyethylene and polyethylene-vinyl acetate based on the total weight of the polymer blend.
  • the surface coating preferably has less than 20% by weight, more preferably less than 15% by weight, even more preferably less than 10% by weight and particularly preferably less than 5% by weight of other components - such as additives - in addition to the polymer blend.
  • Such a surface coating has the advantage that the mentioned mixture of PE and PEVA combines both advantages of the mentioned substances without the disadvantages of the respective substances adversely affecting the surface coating.
  • the surface coating has good long-term stability thanks to the PE it contains.
  • PEVA is particularly robust and thus increases the longevity of a surface coating, especially with regard to mechanical effects on the surface coating.
  • the PEVA forms the basis for the fact that the textile fabric can be processed using high-frequency welding and improves the paintability of the surface coating.
  • plasticizers or substances containing halogens can be dispensed with in such a surface coating made of the combination of PE and PEVA mentioned, which prevents the risk that chemicals containing halogens or plasticizer components can diffuse to the surface of the surface coating and there have undesirable interactions with, for example, a paint finish becomes. This makes the textile fabric more environmentally friendly and its chemical properties remain constantly stable even over a longer life cycle of the textile fabric.
  • the textile fabric is more skin-friendly due to the omission of the plasticizer than, for example, textile fabrics with PVC coatings with plasticizer.
  • the backing layer is a woven fabric or a drebe (twisted fabric).
  • the backing layer is very particularly preferably a woven fabric which has a twill, plain, panama or satin weave.
  • the backing material can be single-ply or multi-ply, with the backing layer being able to have the above-mentioned weaves in one or more layers.
  • the carrier layer can be constructed in multiple layers and consist of at least two layers of fabric or one layer of fabric and one layer of dredging.
  • the surface coating is carried out over the entire surface of the at least one surface of the carrier layer.
  • Full-area means that there are essentially no longer any areas of the carrier layer surface without coating material after the coating of this surface.
  • a full-surface coating can also mean that although the grid does not have any areas without coating on the surface to be coated, gaps between the grids remain free. Neither the backing material nor the coating material is present within the gaps.
  • the textile fabric is preferably coated over the entire surface on both surface sides of the carrier layer.
  • the two surface sides of the carrier layer are particularly preferably coated with the same surface coating. However, a coating with different surface coating materials for different surface sides is also conceivable.
  • the coating of both surfaces forms ridges of coating material within the carrier layer which connect the two surface coatings to one another.
  • none or only one forms small number of webs of coating material within the carrier layer, with no or only a small number of connections resulting from the webs between the two surface coatings of the carrier layer.
  • the carrier layer is coated with the polymer blend in one piece.
  • the coating material polymer blend
  • the coating material is applied to the carrier material essentially as a coherent coating mass, for example as a melt or film, and not, for example, as spray particles, which then form a full-surface coating, for example.
  • the advantage of a one-piece coating is that the surface of the coating is particularly flat and, for example, the surface quality is high as a result. For example, later printability with better quality is then possible.
  • the polymer blend of the surface coating is polyvinyl chloride-free.
  • polyvinyl chloride-free means that the polymer blend has less than 1% by weight, particularly preferably 0% by weight, polyvinyl chloride, based on the total weight of the polymer blend.
  • the surface coating is polyvinyl chloride-free, which is also intended to mean here that the surface coating contains less than 1% by weight, particularly preferably 0% by weight, polyvinyl chloride, based on the total weight of the surface coating. In this case, neither the polymer blend has polyvinyl chloride, nor does the surface coating—as a further component in addition to the polymer blend—have polyvinyl chloride.
  • the adhesion value for the welding of at least two textile fabrics (according to claim 1) to one another by means of high-frequency welding is at least 8 N/cm.
  • the adhesion value for the welding of at least two textile fabrics to one another by means of high-frequency welding is preferably about 12 N/cm, preferably about 15 N/cm, preferably about 20 N/cm, more preferably about 25 N/cm, even more preferably about 30 N/cm, particularly preferably about 60 N/cm and most preferably about 70 N/cm.
  • the adhesion value is determined using the ISO 2411:2017 (EN ISO 2411:2017) standard, whereby the second method of sample preparation of the standard is to be used and the values are to apply to measurements of test specimens measured in the machine direction (i.e. in the warp direction).
  • Another object of the invention relates to a method for producing the textile fabric, wherein the textile fabric has the features as described above.
  • a carrier layer which has at least polyethylene and/or polyester fibers, is coated with a surface coating on at least one surface of the carrier layer by means of a melt calender.
  • a surface coating is chosen that consists of at least one polymer blend, the polymer blend having at least one mixture of polyethylene and polyethylene-vinyl acetate.
  • the polymer blend has greater than 40% by weight polyethylene-vinyl acetate based on the total weight of the polymer blend.
  • the surface coating is in the form of a melt during production and is processed in a correspondingly flowable manner as a homogeneous layer (there is therefore no film of surface coating material that is laminated on by means of a roller and no spray coating by means of matrix droplets or powders).
  • one surface of the carrier layer is coated with the surface coating, as described above.
  • the carrier layer is preferably coated over a width of more than three meters on the upper side of the carrier layer by means of the melt calender in a single process step.
  • a coating web of surface coating is formed on the carrier layer in a single coating process, which has a width of at least three meters.
  • larger textile fabrics can also be produced in an advantageous manner, which have a continuous web of coating material.
  • overlapping areas of coating material do not occur in this way, or less frequently in the case of a width of more than three meters.
  • the printability of the fabric is thus again improved, since not only does the woven carrier layer enable an even coating, but the coating itself also enables a special surface quality.
  • the textile fabric can be further processed for shaping and fixing by means of high-frequency welding.
  • a truck tarpaulin, a bag, a container or the like can be produced from the textile fabric, which is preferably present as web material, by means of high-frequency welding.
  • the textile fabric is preferably formed and/or fixed exclusively by means of high-frequency welding.
  • the textile fabric can also be processed using alternative welding methods, such as hot air, for example.
  • alternative welding processes unlike when processing textiles with PVC in the coating
  • the surface coating of the textile fabric can be varnished, for example, with preference being given to using a polyvinyl chloride-free varnish or a polyvinyl chloride-containing varnish.
  • the surface coating of the textile fabric contains a not inconsiderable proportion of PE, it is surprisingly possible to coat or paint the surface coating (and thus the textile fabric) with a PVC-free paint or with a paint containing polyvinyl chloride.
  • this is not possible or only possible with difficulty, or is only possible by using a larger quantity of additional adhesion promoters or, for example, only after pre-treatments (e.g. corona treatments) of the surface before coating.
  • adhesion promoters For special coatings, however, the use of adhesion promoters is still possible and a corona treatment can also be carried out if this is desired. Furthermore, the preparation of the fabric before painting appears to be shortened or simplified. The use of a smaller amount of adhesion promoter can also be considered advantageous.
  • the textile fabric - with the features already mentioned and manufactured as already described - can be used, for example, as a vehicle tarpaulin, particularly preferably as a truck tarpaulin, as a packaging tarpaulin, as a tarpaulin, as a dinghy, as a container, preferably as a flexible container, or as a bag.
  • the textile fabric can be used, for example, in the fields of architecture, advertising, visual protection, sheathing and/or temporary weather protection will.
  • the possible uses of the textile fabric are particularly wide, since the textile fabric is particularly easy to process and the environmental compatibility is particularly high.
  • the textile fabric can also be used in the food sector as, for example, food packaging or food storage containers. It is particularly important that the packaging material does not release any harmful substances into the food. Nevertheless, the packaging must protect the food from loss of flavor or prevent damage during transport.
  • the use of the textile fabric in the field of medical technology, for example as part of a moisture-repellent bed cover, is also conceivable due to the improved skin-friendliness.
  • Yet another object of the present invention relates to a film product made at least in part from the fabric.
  • the film product has at least one weld seam that was produced by high-frequency welding and that is located in the area of the textile fabric in the film product.
  • the sheet product consists entirely of the fabric.
  • a film product should be understood to mean any structure that consists of at least a flexible and thin-walled material.
  • the film product can have a two- or three-dimensional shape.
  • Figures 1, 2 and 3 a) and 3 b) each show photographs of textile fabrics, Sample 1 being coated with a pure PE polymer blend and Sample 2 being coated with a polymer blend made from a mixture of polyethylene and ethylene vinyl acetate copolymer according to Claim 1.
  • Figures 4a and 4b each show photographs of a sample 3 and a sample 4, wherein in sample 3 a textile fabric with a coating according to claim 1 and another textile fabric with a coating of polypropylene were welded by means of hot air and sample 4 a Hot air welding of a fabric according to claim 1 to another fabric having a coating of polyethylene.
  • FIG. 1 shows both samples 1 and 2, the carrier material being a fabric in both cases.
  • the carrier material being a fabric in both cases.
  • FIG. 2 two identical sample pieces (ie samples made from the same material) were placed one on top of the other and processed by means of thermal stress (hot air). It can be clearly seen that both in Sample 1 and in Sample 2 the coating material has melted locally and has joined together to form a seam. FIG. 2 thus clearly shows that both samples 1 and 2 can be thermally welded.
  • the welding can advantageously result in at least adhesion values between the textiles in the range from 8 to 70 N/cm, preferably from 12 to 60 N/cm, particularly preferably from 15 to 40 N/cm and very particularly preferably from 20 to 25 N /cm can be achieved.
  • the adhesion value is determined using the ISO 2411:2017 (EN ISO 2411:2017) standard, whereby the second method of sample preparation of the standard is to be used and the values are to apply to measurements of test specimens measured in the machine direction (i.e. in the warp direction).
  • a sample 3 was formed from a textile fabric according to claim 1 and another textile fabric with a coating of polypropylene. Using hot-air welding, an adhesion value of more than 50 N/cm could be achieved without edge waviness.
  • a sample was formed from a textile fabric according to claim 1 and another textile fabric with a coating of polyethylene.
  • a connection could be achieved by hot-air welding which has an adhesion value of at least 50 N/cm without producing edge waviness.
  • the adhesion value is determined using the ISO 2411:2017 (EN ISO 2411:2017) standard, whereby the second method of sample preparation in the standard should be used and the values of test specimens measured in the machine direction (i.e. in the warp direction) should apply .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne une surface textile tissée pourvue d'une couche de support, la couche de support étant au moins constituée de fibres de polyéthylène et/ou de polyester. Un revêtement de surface est appliqué sur au moins une des surfaces de la couche de support, le revêtement de surface étant constitué d'au moins un mélange de polymères, le mélange de polymères contenant au moins un mélange de polyéthylène (PE) et de polyéthylène-acétate de vinyle (PEVA) et la proportion de polyéthylène-acétate de vinyle dans le mélange de polymères étant d'au moins 40 % en poids rapportée au poids total du mélange de polymères. L'invention concerne en outre la fabrication d'une telle surface textile et l'utilisation de ladite surface textile. Un autre objet de l'invention est un produit en feuille fabriqué à partir de ladite surface textile.
PCT/EP2021/085877 2020-12-17 2021-12-15 Surface textile enduite WO2022129163A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2021403582A AU2021403582A1 (en) 2020-12-17 2021-12-15 Flat textile structure with coating
EP21831036.5A EP4263930A1 (fr) 2020-12-17 2021-12-15 Surface textile enduite
CN202180081719.0A CN116745486A (zh) 2020-12-17 2021-12-15 具有涂层的平面纺织结构
US18/265,607 US20240093427A1 (en) 2020-12-17 2021-12-15 Flat textile structure with coating
CA3200901A CA3200901A1 (fr) 2020-12-17 2021-12-15 Surface textile enduite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20215027 2020-12-17
EP20215027.2 2020-12-17

Publications (1)

Publication Number Publication Date
WO2022129163A1 true WO2022129163A1 (fr) 2022-06-23

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Country Status (6)

Country Link
US (1) US20240093427A1 (fr)
EP (1) EP4263930A1 (fr)
CN (1) CN116745486A (fr)
AU (1) AU2021403582A1 (fr)
CA (1) CA3200901A1 (fr)
WO (1) WO2022129163A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660150A (en) 1969-06-02 1972-05-02 Ici Ltd Coated woven materials
DE19926732A1 (de) 1999-06-11 2000-12-14 Gerhard Beck PVC-beschichtete Gewirke mit textilem Aussehen und besonders ausgeprägter Luftdurchlässigkeit
WO2004079083A1 (fr) * 2003-03-03 2004-09-16 Young-Sang Ki Bache olefinique et procede pour la produire
WO2012022626A1 (fr) 2010-08-17 2012-02-23 Mehler Texnologies Gmbh Matériau composite comportant un matériau de revêtement
WO2018104101A1 (fr) 2016-12-08 2018-06-14 Autoneum Management Ag Revêtement de surface pour une pièce de garniture extérieure
CN110725135A (zh) 2019-11-26 2020-01-24 杭州盛得新材料有限公司 一种复合高分子涂层织物及其制法
KR20200125829A (ko) * 2019-04-25 2020-11-05 주식회사 신양 직물 테이프 및 그의 제조방법

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660150A (en) 1969-06-02 1972-05-02 Ici Ltd Coated woven materials
DE19926732A1 (de) 1999-06-11 2000-12-14 Gerhard Beck PVC-beschichtete Gewirke mit textilem Aussehen und besonders ausgeprägter Luftdurchlässigkeit
WO2004079083A1 (fr) * 2003-03-03 2004-09-16 Young-Sang Ki Bache olefinique et procede pour la produire
WO2012022626A1 (fr) 2010-08-17 2012-02-23 Mehler Texnologies Gmbh Matériau composite comportant un matériau de revêtement
WO2018104101A1 (fr) 2016-12-08 2018-06-14 Autoneum Management Ag Revêtement de surface pour une pièce de garniture extérieure
KR20200125829A (ko) * 2019-04-25 2020-11-05 주식회사 신양 직물 테이프 및 그의 제조방법
CN110725135A (zh) 2019-11-26 2020-01-24 杭州盛得新材料有限公司 一种复合高分子涂层织物及其制法

Also Published As

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AU2021403582A1 (en) 2023-06-29
EP4263930A1 (fr) 2023-10-25
CA3200901A1 (fr) 2022-06-23
CN116745486A (zh) 2023-09-12
US20240093427A1 (en) 2024-03-21

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