EP3710631A1 - Schichtverbund zur verwendung als lederimitat - Google Patents
Schichtverbund zur verwendung als lederimitatInfo
- Publication number
- EP3710631A1 EP3710631A1 EP19801210.6A EP19801210A EP3710631A1 EP 3710631 A1 EP3710631 A1 EP 3710631A1 EP 19801210 A EP19801210 A EP 19801210A EP 3710631 A1 EP3710631 A1 EP 3710631A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- decorative
- decorative layer
- tobacco
- composite
- 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
Links
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- IUJAMGNYPWYUPM-UHFFFAOYSA-N hentriacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC IUJAMGNYPWYUPM-UHFFFAOYSA-N 0.000 description 1
- 239000006049 herbal material Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000012182 japan wax Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012184 mineral wax Substances 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012168 ouricury wax Substances 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000012434 pretzels Nutrition 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000012176 shellac wax Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009732 tufting Methods 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000012178 vegetable wax Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 235000021119 whey protein Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- 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
-
- 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
- D06N3/0011—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 non-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
- D06N3/0086—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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06Q—DECORATING TEXTILES
- D06Q1/00—Decorating textiles
- D06Q1/10—Decorating textiles by treatment with, or fixation of, a particulate material, e.g. mica, glass beads
-
- 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
- D06N2211/10—Clothing
-
- 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
- D06N2211/28—Artificial leather
Definitions
- Laminate for use as imitation leather Laminate for use as imitation leather
- the invention relates to a layered composite for use as imitation leather, a method for producing the layered composite, and uses of the layered composite.
- the leather industry is one of the sectors with a high environmental pollution potential.
- the chemicals used in tanning especially antibiotics, tanning agents, biocides and volatile organic chemicals such as formaldehyde, can cause lasting damage to the environment if not used properly.
- Appropriate use of the chemicals requires a lot of money and time.
- some of the substances used can remain in the material and only emerge during later use. This is associated with health risks for the end customer.
- DE 199 37 808 A1 relates to a leather substitute material which has an essentially fabric-like carrier layer, a thinner barrier layer applied thereon and a cover layer provided on the barrier layer.
- DE 10 2015 101 331 A1 relates to a translucent synthetic leather with a textile support structure and with at least one layer of PU or PVC.
- the layer composite can also have a surface coating.
- the synthetic leather obtained by this process has several advantages over animal leather.
- PVC synthetic leather is inexpensive and robust, whereas PU synthetic leather has advantageous material properties such as repeated washability. Since synthetic leather is produced as an endless material, cutting is also much easier than with animal leather. The manufacturing process is also considerably shorter because the time-consuming tanning process is eliminated. In addition, synthetic leather manufacturers are not tied to the market availability of certain animal skins.
- the object of the invention was therefore to provide an artificial leather which has comparable or better optical and haptic properties than synthetic leather, can be produced in a more environmentally friendly or sustainable manner than natural and / or synthetic leather and which is at least partially biodegradable.
- a layer composite for use as imitation leather which has the following layers: a) a backing layer which has textile material,
- a cover layer which has a plastic, wax or protein material or a mixture of the aforementioned, the decorative layer being arranged between the textile backing layer and the cover layer and the decorative layer having or consisting of leafy vegetable material, preferably tobacco.
- leafy vegetable material preferably tobacco.
- “vegetable leaf material” means whole or shredded untreated or treated leaves, in particular leaf dust.
- “Treated leaves” are understood to mean those plant leaves or shredded sections thereof which have been preserved by fermentation, chemical treatment, in particular with alcohols, or by drying.
- the vegetable leaf material is fermented, that is to say it has undergone a fermentation process which has brought the dried leaves into a state in which they can be stored and used.
- the plant leaf material can be treated chemically, preferably with a mixture of water and a polyhydric alcohol such as glycerin.
- a polyhydric alcohol such as glycerin.
- the ripening process has a duration of at least one week, preferably two weeks, more preferably one month and most preferably two months. The properties of the ripening process are improved in particular if the cover layer has or consists of a wax material.
- the decorative layer with vegetable leaf material essentially takes on optical and haptic functions in the layered composite. Depending on the vegetable leaf material and the top layer applied to it, the decorative layer not only gives the layer composite good grip and an attractive appearance, but also a pleasant fragrance. This effect can in particular be enhanced by partially or completely needling the individual layers of the composite and not gluing and / or pressing. As a result, the layer composite has increased permeability.
- the decorative layer is essentially free of wood fibers.
- the plant leaf material is particularly preferably selected from the group consisting of rose leaves, vine leaves, cherry laurel leaves and tobacco.
- the vegetable leaf material is particularly preferably tobacco.
- the plant leaf material can be ribbon tobacco.
- Tobacco has several advantages over other plant leaf materials. As the starting material, it has very good availability all year round. Due to the declining demand for tobacco, there is usually excess production capacity, which can be purchased at low cost. Tobacco also has a high proportion of natural alkaloids, especially nicotine, which act as insecticides. As a result, mites and other pests can be kept away from the layered composite and a particularly durable imitation leather can be obtained.
- tobacco leaves particularly after treatment with a mixture of water and a polyhydric alcohol, have a particularly high flexibility and tear resistance.
- the natural fragrance also speaks for using tobacco as a decorative layer in an imitation leather. These advantageous properties are particularly pronounced in fermented tobacco.
- tobacco also has moisture-regulating properties and therefore makes the layered composite extremely comfortable to wear when used as an imitation leather. This effect is particularly pronounced if the layered composite is partially or completely needled, since this results in a high permeability of the material.
- the vegetable leaf material is colored with a synthetic or preferably natural colorant.
- a synthetic or preferably natural colorant is partially or completely food-safe and / or consists of substances which can be recycled as biological nutrients into biological cycles or can be kept continuously as technical nutrients in technical cycles (cradle-to-cradle certification).
- the textile backing layer has or consists of a material which is selected from the group consisting of nonwoven, woven fabric, knitted fabrics, braids or mixtures of the aforementioned.
- Nonwovens, woven fabrics, knitted fabrics, braids or mixtures of the aforementioned are textile materials which are made up of fibers, but differ from one another in the arrangement of the fibers.
- nonwoven is understood to mean a structure of fibers of limited length, continuous fibers (filaments) or cut yarns of any kind and of any origin, which have been combined in some way to form a fiber layer and have been connected to one another in some way. This does not include the crossing or engulfing of yarns, as is the case with weaving, knitting, knitting, lace making, braiding and the manufacture of tufted products.
- This definition corresponds to the standard DIN EN ISO 9092.
- the term nonwoven also includes the felted fabrics.
- Nonwovens, on the other hand do not include foils and papers.
- the nonwovens are preferably anisotropic nonwovens, i.e. those with fiber orientation. In this way, an anisotropic mechanical behavior of the layer composite can be generated, whereby its tear strength is increased.
- woven and nonwoven also include those textile materials that have been tufted. Tufting is a process in which yarns are anchored in a woven or non-woven fabric using a machine operated by compressed air and / or electricity.
- knitted fabrics are understood to mean textile fabrics which are produced from thread systems by means of stitch formation. This includes both crocheted and knitted fabrics.
- braiding is understood to mean the regular intertwining of several strands of flexible material.
- the difference to weaving is that during braiding, the threads are not fed at right angles to the main product direction.
- the chemical fibers are preferably selected from natural polymers or polymers based on natural raw materials. These are particularly preferably selected from the group consisting of viscose, modal, lyocell, curpo, cellulose acetates, protein fibers such as casein fibers, polylactides, alginates, chitin, bio-based polyamides, polyesters and polyisoprenes.
- the weight per unit area (grammage) of the carrier layer is 50 to 200 g / m 2 , more preferably 65 to 130 g / m 2 , particularly preferably 80-120 g / m 2 , most preferably 90-1 10 m 2 . Due to a low basis weight, particularly light layer composites can be produced.
- the thickness of the decorative layer is 0.1 to 10 mm, more preferably 0.1 to 5 mm, particularly preferably 0.1 to 2 mm, most preferably 0.2 to 1 mm.
- the plastic has a material or consists of this material, which is selected from the group consisting of polypropylene (PP), polyethylene (PE), polyvinyl butyral (PVB), polyamide (PA), polyester, in particular polybutylene terephthalate ( PBT) and polyethylene terephthalate (PET), polyurethane (PU), polyethylene oxides, polyphenylene oxides, thermoplastic polyurethanes (TPU) polyurea, polyacetal, polyacrylate, poly (meth) acrylates, polyoxymethylene (POM), polyvinyl acetal, polystyrene (PS), acrylic Butadiene styrene (ABS), acrylonitrile styrene acrylic ester (ASA), polysaccharides, especially pectin and agar agar, polycarbonates, polyether sulfones, polysulfonates, polytetrafluoroethylene (PTFE), polyurea, formaldehyde resins
- PP poly
- wax is understood to mean natural or artificially obtained substances which are kneadable at 20 ° C., solid to brittle-hard, have a coarse to fine-crystalline structure, translucent in color to opaque but not glassy, melt above 40 ° C. without decomposition, little slightly liquid above the melting point, ie are less viscous, have a strongly temperature-dependent consistency and solubility and can be polished under light pressure. This corresponds to the definition according to Römpp Chemie Lexikon, 10th edition, 1999 Georg Thieme Verlag.
- the wax material is selected from the group of natural waxes, particularly preferred from the group of vegetable waxes, in particular candelilla wax, carnauba wax, japan wax, esparto grass wax, cork wax, guaruma wax, rice germ oil wax, sugar cane wax, ouricury wax, montan wax.
- Natural waxes have the advantage that they are not petroleum-based and thus contribute to the sustainability and biodegradability of the layered composite.
- the wax is selected from the group consisting of chemically modified waxes or synthetic waxes, in particular from the group selected from montan ester waxes, sasol waxes, paraffins, hydrogenated jojoba waxes, polyalkylene waxes, polyethylene glycol waxes.
- the cover layer of the layer composite has or consists of a protein material.
- proteins are preferably proteins of plant origin. Proteins contained in lupins, soybeans, peas, linseed, wheat, corn and / or rapeseed are particularly preferred.
- the proteins are of animal origin, gelatin, casein, whey proteins and / or their derivatives being particularly preferred.
- the advantage of a protein covering layer is that the costs for the production of the protein layer are very low and that it is harmless to health.
- the layer can also be made without organic solvents, i.e. be processed based on water. It should also be emphasized that the protein covering layer consists of renewable raw materials that are biodegradable and self-adhesive or adhesive.
- the thickness of the cover layer is 5 pm-1 mm, more preferably 10 pm to 0.5 mm, particularly preferably 20 gm to 0.1 mm, most preferably 50 pm to 0.1 mm.
- the cover layer can also have additives such as dyes, UV filters, binders or fillers. By adding additives and fillers, the properties of the top layer can be changed, in particular color, strength and manufacturing price.
- the additives are preferably selected from the group consisting of calcium carbonate, chemical and physical UV filters such as titanium dioxide, calcium and barium sulfate, aluminum hydroxide, silicates such as talc, clay or mica, kaolin or wolastonite, glass fibers, dyes, silica, glass fibers and glass balls as well as cellulose powder, carbon black and graphite.
- the layer composite has the following layers: a) a carrier layer which consists of textile material,
- a decorative layer which consists of vegetable leaf material
- a cover layer which consists of a plastic, wax, or protein material or a mixture of the above, the decorative layer being arranged between the textile backing layer and the cover layer.
- the layer composite has the following layers:
- a decorative layer which consists of vegetable leaf material
- a cover layer which has a plastic, wax or protein material or a mixture of the aforementioned
- the layer composite has the following layers:
- a cover layer comprising a plastic, wax or protein material or a mixture of the aforementioned, the decorative layer being arranged between the textile backing layer and the cover layer.
- the layer composite consists of the following layers: a) a carrier layer which consists of textile material,
- a decorative layer consisting of vegetable leaf material
- a cover layer consisting of a plastic, wax or protein material or a mixture of the aforementioned, the decorative layer being arranged between the textile carrier layer and the cover layer.
- the layer composite has the following layers: a) a carrier layer which consists of textile material,
- a cover layer consisting of a plastic, wax, or protein material or a mixture of the aforementioned, the decorative layer being arranged between the textile backing layer and the cover layer.
- the layer composite has the following layers:
- a cover layer comprising a plastic, wax or protein material or a mixture of the aforementioned, the decorative layer being arranged between the textile backing layer and the cover layer.
- the layer composite consists of the following layers: a) a carrier layer which consists of textile material,
- the layer composite consists of a carrier layer made of flax nonwoven or a fabric, a decorative layer made of the herbal material tobacco and a cover layer made of a plastic, wax or protein material, preferably of polyethylene, polyethylene terephthalate, polyurethane, polyamide or a mixture of the aforementioned plastics.
- the layer composite can also have further layers. These are preferably selected from the group consisting of carrier, decorative, adhesive and cover layers. Especially before preferred, the layer composite has one or more additional decorative layers which are arranged between the carrier and cover layers. In a preferred embodiment, the additional layers are arranged on both sides of the carrier layer. In this context, the symmetrical arrangement of the layers in relation to the carrier layer, for example a sequence of layers, is particularly preferred: 1. top layer, 1. decorative layer, carrier layer, 2. decorative layer, 2. top layer.
- the individual thicknesses of these additional layers are 0.1 to 10 mm, more preferably 0.5 to 8 mm, particularly preferably 1 to 5 mm, most preferably 2 to 4 mm.
- the basis weight (grammage) of the additional layers in a preferred embodiment is 50 to 200 g / m 2 , more preferably 65 to 130 g / m 2 , particularly preferably 80 to 120 g / m 2 , most preferably 90 to 1 10 m 2 . Due to a low basis weight, particularly light layer composites can be produced.
- the adhesive of the adhesive layers is preferably selected from the group consisting of cyanoacrylates, methyl methacrylates, unsaturated polyesters, dispersion adhesives, solvent-based or dispersion-containing wet adhesives, protein-based adhesives, hot melt adhesives, plastisols, epoxy adhesives, polyurethane adhesives, silicones, resins, in particular phenolic resins, Polyimides, polysulfides, poly (meth) acrylates, polyvinyl acetates, rubbers and bismaleimides. Protein adhesives are particularly preferred in order to produce the material in an environmentally friendly way.
- the adhesive is preferably cured by chemical curing or solidification by cooling.
- solvents or dispersants can be used or even solvents or dispersants can be dispensed with entirely. Not only is this particularly sustainable, as a rule the processing times and the bond within the layer composite are also better.
- the strength, in particular the tensile strength and / or the bending tensile strength, of one, more or all of the cover and / or carrier layers is greater than that of the at least one decorative layer.
- the tensile strength also tear strength, is the maximum tensile stress that a body can withstand. It can be determined by a tensile test.
- the bending tensile strength denotes the maximum tensile stress that a body can absorb when subjected to bending. It can be determined using a 3 or 4-point bending tensile test.
- the strength, in particular the tensile strength and / or flexural tensile strength, of one, more or all of the cover and / or support layers is greater than that of the at least one decorative layer, the support and / or cover layers can withstand the stresses that arise under mechanical stress take over, so that the at least one decorative layer does not break or only breaks under higher loads, which would result in unfavorable cracks in the layer determining the appearance.
- the elasticity of the decorative layer and thus its strength can be increased by fermentation and / or chemical treatment of the plant material.
- the treatment of fermented leaves with a mixture of water and a polyhydric alcohol, in particular glycerol, has proven to be particularly advantageous.
- the invention also includes a method for producing the layer composite, which has the following steps:
- application means the establishment of a firm connection between the layers. This can be done, for example, by gluing, curing a layer, needling or 3D printing.
- a transfer film is used in the manufacturing process.
- the vegetable leaf material is applied to a carrier layer in step A) and the cover layer is applied to the decorative layer in step B).
- the plant leaf material is applied to a cover layer in step A) and the carrier layer is applied to the decorative layer in step B).
- a polyethylene layer is glued to the decorative layer in a laminating plant for paper products.
- a composition which is still to be hardened can be applied to the decorative layer from which the cover layer is formed.
- one or more waxes that harden on the decorative layer can be applied to the decorative layer.
- the hardening of the composition and the formation of the cover layer can also take place under the influence of elevated temperatures, pressure and / or radiation.
- the layers are additionally needled. Needling the layers has the advantage that the permeability, for example for gases such as water vapor, can be significantly increased.
- the layer composite can be produced in a continuous process, which is a considerable advantage over the discontinuous method of animal leather production.
- top layers for screen printing that are common in the textile sector have also been successfully tested.
- cover layers which are produced from water-based mixing systems for textile printing.
- These water-based mixing systems have a water-based binder, in particular a synthetic resin dispersion binder, which preferably has a transparency> 80% and / or contains further constituents such as pigments, adhesion promoters or fillers.
- Water-based mixing systems which are free from organic solvents or dispersion media, phthalates, formaldehyde, alkylphenols and alkylphenol ethoxylates are particularly preferred.
- the water-based mixing systems are preferably label-free, non-toxic and skin-friendly.
- the water-based mixing systems are preferably dried by applying heat to the decorative layer, and then heat-set at a temperature of 150-160 ° C.
- the fixation can be done with a transfer press, a drying tunnel, a hot air gun, an iron, an ironing press or in an oven.
- the fixing time is 2-3 minutes at the above temperatures.
- the manufacturing process is carried out as shown below.
- First the carrier layer is transported by rolling.
- the adhesive is applied in a first area.
- the vegetable leaves coated with adhesive are placed in a subsequent area.
- the plant leaves are pressed on using a heated calender or pressure rollers.
- the upper layer is applied. If the cover layer is a plastic material in the form of a film, it can be glued on using a heated calender.
- the method has the following additional method steps:
- the vegetable material preferably being tobacco
- steps A) to E) are carried out in the order A), B), C), D), E).
- adhesive is applied to the vegetable leaf material and / or the substrate layer before the vegetable leaf material is applied to the textile backing layer. In this way, a particularly firm bond between the carrier and the decorative layer can be achieved.
- the aqueous solvent or dispersion medium has a binder selected from the group consisting of polysaccharides, in particular agar agar, pectin, xanthan, natural and synthetic resins, gelatin, alginate, chitosan, cellulose ether, modified starch, glue or mixtures of the above
- the binder serves to achieve a higher viscosity of the dispersion during the manufacturing process. As a result, this can be applied better to the carrier layer.
- the binder that remains in the decorative layer ensures a better bond between the plant leaf material. This effect is particularly pronounced if the solvent or dispersion medium is a mixture of water and a polyhydric alcohol, in particular glycerol.
- the aqueous solvent or dispersion medium therefore has an alcohol, preferably a polyhydric alcohol, such as glycerol, glycol, polyethylene glycol or polyethylene oxide.
- an alcohol preferably a polyhydric alcohol, such as glycerol, glycol, polyethylene glycol or polyethylene oxide.
- the top layer of the layer composite has a transmission in the visible wavelength range of> 30%, preferably> 50%, more preferably> 70% and most preferably> 90%. This enables the optical properties of the tobacco to stand out particularly well.
- the transmission of both the textile backing layer and the top layer in the visible wavelength range is> 30%, preferably> 50%, more preferably> 60% and most preferably> 80%. This enables a layered composite to be obtained which can be backlit particularly well and can therefore be used in various uses in the lighting area, for example as a lampshade or in the interior of a motor vehicle.
- the layer composite has layers with the materials listed in the respective cells.
- the layers have or consist of the material mentioned in the respective cells. 1. Versions with different carrier layers
- 50 g of rose petals are dispersed in 50 ml of a solution of glycerol / water and, after decanting the solvent or dispersion medium, applied to a surface section of a flax fleece of grammage 100 g / m 2 .
- the aqueous solvent or dispersion medium is dried by air drying 50 ° C away to get a uniform decor layer.
- a liquid beeswax heated to 60 ° C is applied to these and allowed to cool in order to produce a uniform top layer.
- Fig. 5 pattern of laying the tobacco leaves of an exemplary decorative layer.
- Fig. 3 shows the layer structure of a layer composite according to the invention, which has a carrier, adhesive, decorative and cover layer.
- the carrier layer 1 is connected to the decorative layer 5 by the adhesive 2.
- the decorative layer 5 made of tobacco is connected by the adhesive 4 with the decorative layer 3 and the cover layer 7.
- the vegetable leaf material of the decorative layer 5 is connected to one another by adhesive.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP23197827.1A EP4269686A3 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018008307 | 2018-10-20 | ||
PCT/EP2019/078455 WO2020079269A1 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
Related Child Applications (1)
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EP23197827.1A Division EP4269686A3 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
Publications (3)
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EP3710631A1 true EP3710631A1 (de) | 2020-09-23 |
EP3710631B1 EP3710631B1 (de) | 2023-09-20 |
EP3710631C0 EP3710631C0 (de) | 2023-09-20 |
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EP19801210.6A Active EP3710631B1 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
EP23197827.1A Pending EP4269686A3 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
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EP23197827.1A Pending EP4269686A3 (de) | 2018-10-20 | 2019-10-18 | Schichtverbund zur verwendung als lederimitat |
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US (1) | US20210332527A1 (de) |
EP (2) | EP3710631B1 (de) |
JP (1) | JP2022512030A (de) |
CN (1) | CN113302355B (de) |
BR (1) | BR112021007439A2 (de) |
MX (1) | MX2021004484A (de) |
WO (1) | WO2020079269A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021109087A1 (de) | 2021-04-12 | 2022-10-13 | Nuvi Releaf Gmbh | Neuartiger Schichtverbund zur Verwendung als Lederimitat |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112056695A (zh) * | 2020-09-16 | 2020-12-11 | 安徽省敬烨防护科技有限公司 | 一种耐高温复合材料安全鞋的制备工艺 |
CN112391851B (zh) * | 2020-11-05 | 2023-08-22 | 陕西同华机电有限公司 | 一种聚氨酯面料复合胶及其制备方法 |
DE102021006418A1 (de) * | 2021-12-30 | 2023-07-06 | Stitch & Trim GmbH | Lederimitat, halbfertiges Lederimitat und Verfahren zur Herstellung eines Lederimitats |
WO2023146836A2 (en) * | 2022-01-25 | 2023-08-03 | Stuebler Martin | Natural plant-fiber-based pile-fabric textile and method of manufacturing the same |
CN114561814A (zh) * | 2022-02-25 | 2022-05-31 | 浙江宏仕达新材料有限公司 | 一种抗撕裂篷布及其制作方法 |
CN115155931A (zh) * | 2022-08-18 | 2022-10-11 | 清远市齐力合成革有限公司 | 鳞片皮皱聚氨酯合成革自动生产线与生产方法及其制品 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3436303A (en) | 1965-09-16 | 1969-04-01 | Minnesota Mining & Mfg | Water-laid leather substitute containing leather fibers,staple fibers and polyurethane aqueous slurry and method for making same |
GB2010750B (en) * | 1977-10-24 | 1982-09-15 | Newington Bridges A A | Decorative articles |
DE19937808A1 (de) | 1999-08-10 | 2001-06-13 | Johannes Michael Stoeger | Lederersatzmaterial auf Flachs, Stroh, Restholz und Rapsstroh |
MX2008005226A (es) * | 2005-10-20 | 2008-10-17 | Dow Reichhold Specialty Latex | Material mixto de cuero. |
DE102006001095A1 (de) * | 2006-01-09 | 2007-07-12 | TESCH, Günter | Verfahren zur Herstellung eines lederhaltigen Flächengebildes und lederhaltiges Flächengebilde |
KR100767015B1 (ko) * | 2006-02-10 | 2007-10-15 | 전효철 | 내장용 시트지 및 그 제조방법 |
CN203198318U (zh) * | 2013-03-26 | 2013-09-18 | 丁群雄 | 树脂层花卉合成革 |
DE102015101331A1 (de) | 2015-01-29 | 2016-08-04 | Bayerische Motoren Werke Aktiengesellschaft | Lichtdurchlässiges Kunstleder und Verfahren zur Herstellung desselben |
GB2569097B (en) * | 2017-10-20 | 2022-12-14 | Tsn Capital Ltd | A composite material and a method for the manufacture of a composite material |
-
2019
- 2019-10-18 JP JP2021546471A patent/JP2022512030A/ja active Pending
- 2019-10-18 WO PCT/EP2019/078455 patent/WO2020079269A1/de unknown
- 2019-10-18 MX MX2021004484A patent/MX2021004484A/es unknown
- 2019-10-18 CN CN201980068918.0A patent/CN113302355B/zh active Active
- 2019-10-18 EP EP19801210.6A patent/EP3710631B1/de active Active
- 2019-10-18 US US17/286,594 patent/US20210332527A1/en active Pending
- 2019-10-18 BR BR112021007439-2A patent/BR112021007439A2/pt unknown
- 2019-10-18 EP EP23197827.1A patent/EP4269686A3/de active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021109087A1 (de) | 2021-04-12 | 2022-10-13 | Nuvi Releaf Gmbh | Neuartiger Schichtverbund zur Verwendung als Lederimitat |
WO2022218977A2 (de) | 2021-04-12 | 2022-10-20 | Nuvi Releaf Gmbh | Neuartiger schichtverbund zur verwendung als lederimitat |
DE102022134633A1 (de) | 2021-04-12 | 2023-10-12 | Nuvi Releaf Gmbh | Neuartiges Kunstleder |
Also Published As
Publication number | Publication date |
---|---|
WO2020079269A1 (de) | 2020-04-23 |
EP3710631B1 (de) | 2023-09-20 |
CN113302355A (zh) | 2021-08-24 |
EP4269686A2 (de) | 2023-11-01 |
JP2022512030A (ja) | 2022-02-01 |
EP4269686A3 (de) | 2023-12-06 |
EP3710631C0 (de) | 2023-09-20 |
WO2020079269A9 (de) | 2021-04-15 |
MX2021004484A (es) | 2021-06-23 |
CN113302355B (zh) | 2023-11-21 |
BR112021007439A2 (pt) | 2021-07-27 |
US20210332527A1 (en) | 2021-10-28 |
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