COATED FABRIC

Abstract

The invention relates to a coated textile comprising a substrate coated with a coating composition. The substrate is made of cellulosic material, and the coating composition comprises at least 35% by weight of desugared grape pomace and at least one bio-based binder. The coated textile comprises at least 65% by weight of bio-based materials. The invention also relates to the manufacturing process of this coated textile.

Description

Title of the invention: COATED TEXTILE

[0001] The field of the invention relates to a coated textile comprising a substrate coated with a coating composition. More generally, the invention relates to the textile industry and in particular to a similar leather made from plant-based products.

[0002] Today, textiles made from animal materials are increasingly less tolerated by consumers. Fashion brands can no longer condone practices related to the exploitation of real fur or leather derived, at least in part, from animals cruelly killed for their skin.

[0003] This is why the majority of fashion brands, and in particular progressive and / or ethical brands, are increasingly turning to textile materials based on synthetic or plant products.

[0004] The appearance, look, and quality of genuine leather remain difficult to imitate. Synthetic products exist, such as the product commonly known as skai®, but these present environmental problems, particularly with regard to their recycling. Furthermore, some consumers are reluctant to use products of chemical origin.

[0005] The prior art also describes materials based on bark, fruit, roots or leaves.

[0006] IT201900000073 discloses a polymeric compound for the production of coated fabrics comprising dried and micronized wine pomace and at least one polymer of chemical origin (in particular polyvinyl chloride (PVC), polyurethane (PU) or polyamide (PA)).

[0007] EP4239121 discloses a fruit extract compound comprising a first prepolymer comprising a powder of apples, lemons, oranges and / or cane sugar and a second prepolymer of chemical origin (notably isocyanate).

[0008] State-of-the-art plant-based materials are therefore combined with chemical polymers. These polymers are often toxic, carcinogenic, or difficult to recycle, which poses environmental problems.

[0009] One reason for this combination with chemical polymers is that plant materials are generally not satisfactory with regard to the quality and / or aesthetic appearance of the finished textile.

[0010] Thus, products on the market generally contain only a relatively small fraction of compounds of natural origin. In particular, coated textile materials described as plant-based and / or vegan, intended to imitate leather, have percentages of plant matter not normally exceeding 30% to 40%. in the finished product. This figure decreases further when seeking to enhance the aesthetic or qualitative aspects of the textile.

[0011] The present invention improves the situation.

[0012] In this respect, the invention relates to a coated textile comprising a support coated with a coating composition, characterized in that said support is made of cellulosic material and said composition comprises at least 35% by weight of desugared grape pomace and at least one bio-based binder, and in that said coated textile comprises in total at least 65% by weight of bio-based materials.

[0013] Preferably, the coating composition comprises at least 45%, preferably at least 50%, by weight of desugared grape pomace.

[0014] Preferably, the textile comprises at least 70%, preferably 100%, by weight of bio-based materials.

[0015] The cellulosic material can be chosen from the group consisting of cotton, hemp, flax or a mixture thereof.

[0016] The cellulosic material is preferably from organic farming.

[0017] The cellulosic material used in the present invention has a basis weight minimum of 200 g / m2. In a preferred embodiment, the cellulosic material has a minimum weight of 300 g / m2.

[0018] The coating composition may include: 35% to 85%, preferably 30% to 50%, by weight of desugared grape pomace; 15% to 70%, preferably 50% to 65% of a first bio-based binder; and 0% to 50% of a second bio-based binder; and possibly traces of a dispersing agent.

[0019] In a particularly preferred embodiment, the coating composition may consist of the above elements.

[0020] The coating composition may in particular consist of: about 30% by weight of a first binder, preferably RA-066-018, about 20% by weight of a second binder, preferably Alberdingk, about 50% by weight of desugared grape pomace, and possibly traces of a dispersing agent, preferably Disperbyk.

[0021] In one embodiment, the grape pomace is derived from waste products of viticulture and / or winemaking, including grape skins and grape pits / seeds. It preferably has an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm. Advantageously, it is free of petroleum-based compounds and / or toxic compounds.

[0022] The invention also relates to a method for manufacturing a coated textile described above, comprising the following steps:

[0023] -A- provision of a support made of cellulosic material;

[0024] -B- coat said support with a coating composition so as to obtain a wet coated material;

[0025] -C- dry said wet coated material so as to obtain a coated textile.

[0026] In a preferred embodiment, the step of manufacturing the coating composition may include the following substeps:

[0027] i. mix grape pomace with water so as to obtain a viticultural and / or winemaking mud;

[0028] ii. boil said wine and / or wine sludge so as to reduce the quantity of sugar by at least 90%, preferably 100%, of the grape pomace so as to obtain a moist desugared grape pomace;

[0029] iii. filter the vineyard and / or winery sludge obtained in step ii. so as to isolate a first filtrate composed of moist desiccated grape pomace and residual sugar;

[0030] iv. mix the first filtrate with cold water so as to wash it;

[0031] v. filter the mixture obtained in step iv. so as to obtain a second filtrate consisting mainly of moist, desiccated grape pomace;

[0032] vi. dry said second filtrate until a friable marc material is obtained;

[0033] vii. micronize said friable pomace material so as to obtain a pomace powder unsweetened grapes having an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm;

[0034] viii. disperse the desugared grape marc powder in at least one bio-based binder, and optionally add a dispersant and / or water, so as to obtain a coating composition.

[0035] The coating composition in step -B- is preferably made up of: 20% to 75% by weight of desugared grape pomace; 30% to 70% of a first bio-based binder; 0% to 30% of a second bio-based binder; 20% to 45% of water; and 0% to 3% of dispersing agent.

[0036] More particularly, the coating composition in step -B- can consist of: about 35% to 40% by weight of a first binder, preferably 37.04% by weight of RA-066-018, about 25% to 20% by weight of a second binder, preferably 17.37% by weight of Alberdingk, about 20% to 25% by weight, preferably 21.46% of grape marc, about 20% to 25%, preferably 21.41%, by weight of water and about 1% to 5% by weight of a dispersing agent, preferably 2.72% by weight of Disperbyk.

[0037] The invention also relates to a ready-to-wear garment made at least partly from a coated textile as described above. The ready-to-wear garment may be a handbag, a jacket, or trousers.

[0038] Other features, details and advantages will become apparent upon reading the detailed description below.

[0039] The description and tables below contain, essentially, elements of a certain nature. The tables form an integral part of the description and may therefore not only serve to better understand the present invention, but also contribute to its definition, if necessary.

[0040] In the technical field of the invention, a textile within the scope of the invention is sometimes referred to as "vegetable leather" or "vegan leather." However, the use of the word "leather" is strictly regulated by most national laws, and in particular by French law. Thus, the word "leather" can only refer to skin of animal origin. "Vegetable leather" and / or "vegan leather" therefore do not exist. Furthermore, the word "leather" combined with the words "vegetable" and / or "vegan" is meaningless. These terms are indeed incompatible since leather refers to an animal origin, while the words vegetable and vegan refer to a plant origin.

[0041] In the present description, reference is made to a textile material. More specifically, the textile material of the invention comprises a coating composition, that is to say, a composition intended to be coated onto a substrate. The invention thus relates to a material that can be described as a "coated textile" or "coated fabric." In English, the material of the invention is generally referred to as a "coated textile" or "coated fabric."

[0042] Coating is a surface treatment that consists of applying a coating, generally liquid or viscous (in particular lacquer, paint, oil, etc.), to a substrate. Specifically in the present invention, coating refers to the action of coating a cellulosic textile surface with a layer of essentially biological composition to modify its appearance and / or give it particular qualities. More generally, the coating described here consists of covering the surface of a substrate with a product (i.e., the coating composition) intended to protect it, modify its appearance, and / or give it particular qualities, such as the appearance of leather.

[0043] One objective of the invention is to provide a usable, robust and durable material for the textile-clothing industry, which meets the qualitative and aesthetic criteria of fashion on the one hand, and which valorizes organic agricultural waste, essentially free of pesticides, on the other hand.

[0044] Thus, the invention takes advantage of the transformation and recycling of grape waste, including skins and pits / seeds. More specifically, the invention uses waste from wine production: grape pomace. This waste is collected directly from winegrowers who can identify the vineyard in general, or even the specific plot planted with vines. The waste is therefore traceable with regard to its origin and / or nature.

[0045] In a preferred embodiment, the invention uses the grapes directly after pressing or after fermentation. The grapes come, in particular, from Provençal vineyards located in the Provence region of France. Transparency and traceability of the grape source are important for the industry. Indeed, the raw material must generally be precisely identifiable for the fashion and / or lifestyle industries.

[0046] Another objective of the invention is to reduce, or even eliminate, petroleum-based products present in similar synthetic leathers by offering a "cleaner" plant-based and / or vegan alternative, i.e., one that is less polluting to the environment.

[0047] Grape pomace, which is one of the components of the invention, has properties that at least partially meet the needs of the textile and clothing industry. However, pomace used as such presents a number of problems, including stability issues.

[0048] The Applicant discovered, not without surprise, that grape pomace processed according to the process of the invention could solve these problems.

[0049] Thus, the processed grape pomace, combined with the other components of the invention, contributes significantly to obtaining a usable, robust, and durable textile material. Aesthetically, the use of the pomace preserves the natural color and texture of the grapes. The grape pomace is indeed visible on the material of the invention. This type of textile material is sought after in the fashion industry.

[0050] The textile of the invention comprises a substrate coated with a coating composition. The invention is therefore described as a coated textile. The substrate is made of cellulosic material, and the coating composition applied to it comprises at least 50% by weight of grape pomace and at least one bio-based binder. According to the invention, the grape pomace is desugared, and the coated textile comprises at least 70% by weight of bio-based materials.

[0051] The coated textile of the invention comprises cellulosic material. This material has a high cellulose content. Cellulose is a chemical compound found in plants, among other things. Cellulose is particularly well-suited for use in textiles because it possesses various properties such as increased strength, insulation, and absorption performance. In a preferred embodiment of the invention, the cellulosic material is selected from the group consisting of cotton, hemp, flax, Liocell, bamboo, or a mixture thereof. Preferably, the cellulosic material used for the invention is organically grown.

[0052] The Applicant discovered, not without surprise, that reducing the sugar content in the grape pomace resulted in surprising and unexpected properties. In particular, good properties were observed with regard to the adhesion of the coating composition to the cellulose support, and the coating ability. (application of homogeneous layers, good viscosity, etc.), but also with regard to the final appearance of the product in terms of particle size, aesthetics, and sensory qualities (for example, attractive appearance and / or pleasant feel). Thus, the desweetened grape pomace according to the invention is reduced by at least 90% of the sugar(s) initially present, preferably 100%.

[0053] In one embodiment, the cellulosic material has a basis weight of between approximately 200 g / m² and approximately 500 g / m². Tests carried out by the applicant have shown that a textile with a basis weight greater than 300 g / m² provides good mechanical performance. This basis weight offers sufficient thickness to facilitate good application of the coating composition.

[0054] In a preferred mode, the coating composition of the invention in its dry state comprises:

[0055] 35% to 85% by weight of desugared grape pomace;

[0056] 15% to 65% of a first bio-based binder; and

[0057] 0% to 50% of a second bio-based binder.

[0058] In other embodiments, the coating composition may comprise more than two bio-based binders.

[0059] The coating composition of the invention comprises at least one bio-based binder. Bio-based materials are derived from renewable organic matter (biomass) of plant or animal origin. The organic matter may come, for example, from wood, straw, cellulose wadding, cereals, cork, flax, or grapes. Thus, the binder(s) in the composition of the invention are derived from such renewable organic matter.

[0060] Generally speaking, a binder is a polymer that binds fillers, pigments, and other additives. The binder forms a coating composition in the form of a cohesive film, which facilitates its application to a substrate such as a cellulose-based material. It is essentially responsible for the adhesion, durability, and protective properties of the coating layer. The binder acts as a resin or polymer that forms a continuous matrix. After drying and / or hardening, this matrix binds the pigment and other components together in a solid film. The binder plays an important role in determining the properties of the final product, such as its gloss, hardness, flexibility, and resistance to various environmental factors such as humidity, UV radiation, and chemicals.

[0061] In one embodiment of the invention, the binder is a so-called "bio-based" binder. This means a binder derived from biomass. More generally, a bio-based material is a material that is entirely or at least predominantly composed of biological substances. Biomass refers to renewable organic matter of animal, plant, fungal, and / or bacterial origin. This type of biomass is by For example, it is used as a raw material in paint production. One example is the 100% bio-based biopolymer binders called "Lily" and "Lotus," available from the company Organoclick. However, a bio-based product is not necessarily composed entirely of biomass-derived material(s). For instance, it is possible to add several components of different origins (plant and animal) to the same product in order to combine the advantages of each.Examples include the bio-based acrylic binder RA-66-018 available from Stahl, the bio-based polyurethane dispersion binders Unires® RU-66-005, Unires® RU-66-006 or Unires® RU-66-009 available from Stahl, the bio-based polyurethane dispersion binder Alberdingk® CUR 2021 VP available from Henry Franc, and the bio-based acrylic binder Alberdingk® Ren AC 8003 VP available from Henry Franc.

[0062] More generally, for the invention, the binder(s) will be chosen according to several parameters and / or properties. Thus, particular attention is paid to:

[0063] - The glass transition temperature (Tg). Advantageously, the binder provides cohesion and good flexibility. Binders with a low Tg, i.e. less than 0°C, are therefore preferred, preferably between -50°C and 0°C;

[0064] - Flexibility. Indeed, it is advantageous for the textile material of the invention to It must exhibit good flexibility. Indeed, the final product must generally meet the specifications of a classic artificial leather. The flexibility of the binder allows the coating composition to adapt to the movements of the substrate without cracking and / or peeling. The flexibility of a binder can be determined by its Tg value, but can also be determined based on the binder family.

[0065] - Biodegradability. The invention aims for a high content of raw materials biological. Consequently, good biodegradability of the binder is highly preferred.

[0066] The manufacturing of the coating composition may involve the addition of a dispersing agent to promote the homogeneity of the mixture of constituents. The quantities used are generally relatively small compared to the other constituents (powder filler, binder(s), and water) of the composition. The composition is dried after its application to the cellulosic substrate in order to evaporate the water and thus fix the coating composition to the substrate. After drying, the coating composition therefore contains traces of a dispersing agent. These traces of dispersant are often difficult to identify analytically (HPLC, etc.), particularly due to the small quantity but also because of masking by the binder.

[0067] In a particular embodiment, the coating composition consists of: about 30% by weight of a first binder, preferably RA-066-018, about 20% by weight of a second binder, preferably Alberdingk, about 50% by weight of raisin, and possibly traces of dispersing agent, preferably Disperbyk.

[0068] Grape pomace preferably comes from waste products of viticulture and / or winemaking, including grape skins and grape pits / seeds. The pomace usually comes from a press. It is sometimes referred to as "Pomace." The use of agricultural waste is in line with the current trend known as regenerative agriculture.

[0069] In a preferred embodiment, the grape pomace has an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm. This promotes the adhesion of the coating composition to the substrate on the one hand, and contributes to the desired aesthetic appearance.

[0070] By using the constituents described above, the coated textile of the invention can be free of petroleum-based compounds and / or toxic compounds.

[0071] Reference is now made to the manufacturing process for the coated textile of the invention. The manufacturing process comprises the following steps:

[0072] -A- provision of a support made of cellulosic material;

[0073] -B- coat said support with a coating composition so as to obtain a wet coated material;

[0074] -C- dry said wet coated material so as to obtain a coated textile.

[0075] The process may include substeps leading to the coated textile of the invention. In particular, the process described here includes a step for manufacturing the coating composition. These are substeps i. to viii. below.

[0076] i. Mix grape pomace with water to obtain a vineyard and / or winery sludge. The mixing can be carried out in a tank or in a mixer. The grapes can come directly from vineyard presses. The water is preferably pure, good-quality water.

[0077] ii. Boil said winery and / or wine sludge so as to reduce the sugar content of the grape pomace by at least 90%, preferably 100%, in order to obtain a moist, desweetened grape pomace. The Applicant has discovered that reducing the sugar content in the grape pomace yields surprising properties, particularly with regard to the adhesion of the composition to a cellulosic support, its suitability for coating (application of homogeneous layers, for example), but also with regard to the final appearance of the product in terms of particle size, aesthetics, and sensory appeal (pleasant feel). Thus, the desweetened grape pomace according to the invention is reduced by at least 90%, preferably 100%, in sugar(s).

[0078] iii. Filter the vineyard and / or winery sludge obtained in step ii. to isolate a first filtrate composed of moist desugared grape pomace and residual sugar. Filtration can be carried out using a sieve and / or membrane. The residual sugar can be recovered and / or recycled.

[0079] iv. Mix the first filtrate with cold water to wash it. Washing helps to remove any potential sugar residues.

[0080] v. Filter the mixture obtained in step iv to obtain a second filtrate consisting mainly of moist, desiccated grape pomace. This second filtration isolates the moist, desiccated grape pomace. It should be noted, however, that it is sometimes difficult to completely desiccate the grape pomace.

[0081] vi. Dry the second filtrate until a friable pomace material is obtained. This drying step prepares the subsequent micronization step, which contributes to the final appearance of the product in terms of particle size, aesthetics, and sensory qualities.

[0082] vii. Micronize the friable pomace material to obtain a desugared grape pomace powder with an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm. As mentioned above, this particle size contributes to the quality of the final product.

[0083] viii. Disperse the desugared grape pomace powder in at least one bio-based binder, and optionally add a dispersant and / or water to obtain a coating composition. The amount of water is adjusted to obtain a viscosity that allows the composition to be properly coated onto the substrate. Generally, a Brookfield viscosity between 3000 mPa·s and 10000 mPa·s is desired. The dispersant can increase homogeneity, which further improves the coating. Ideally, the dispersion is carried out in a disperser / mixer. A planetary mixer such as the SpeedMixer DAC 150.1 FV-K can be used.

[0084] In a preferred embodiment, the coating composition (wet or moist state) at step -B- consists of:

[0085] 20% to 75% by weight of desugared grape pomace;

[0086] 30% to 70%, preferably 30% to 40%, of a first bio-based binder;

[0087] 0% to 20%, preferably 15% to 20%, of a second bio-based binder;

[0088] 20% to 45%, preferably 20% to 25%, of water; and

[0089] 0% to 3%, preferably 2.5% to 3%, of dispersing agent.

[0090] In one particular embodiment, the weight of grape pomace is between 20% and 50%. In another particular embodiment, the weight of grape pomace is between

[0091] In a particular embodiment, the coating composition in step -B- consists of: 30% to 40%, preferably about 37.04% by weight of RA-066-018 (PU type binder), 15% to 20%, preferably about 17.37% by weight of Alberdingk (acrylic type binder), 20% to 25%, preferably about 21.46% by weight of raisin, 20% to about 25%, preferably about 21.41% by weight of water and 2.5% to 3%, preferably about 2.72% by weight of Disperbyk.

[0092] EXAMPLES OF IMPLEMENTATION

[0093] Example 1.

[0094] Initially the grape is treated in such a way as to eliminate as much sugar as possible from it.

[0095] To achieve this, the following procedure is used:

[0096] - Place the raisins in a bain-marie (in water) for a period of 15 minutes at approximately 90°C to extract the maximum amount of sugar;

[0097] - Wash the grapes in cold water, then filter them using a filter on Buchner;

[0098] - Dry the raisins in the oven for approximately 5 to 6 hours at a temperature of about 100°C until dry, and more specifically so that they are brittle and not sticky;

[0099] - Grind the grapes step by step until a smaller particle size is obtained or equal to 0.310 mm, preferably less than or equal to 0.250 mm. A "Pulverisette 19" type grinder, available from FRITSCH, can be used. To control particle size, the ground material is sieved.

[0100] In the present example, at least 90% of the sugars initially present in the grape are eliminated.

[0101] The crushed and desugared grape pomace is then mixed with a binder. The mixing is carried out in a dispersion machine. In this example, a small amount of dispersing agent is further added to the mixture, along with water. The formulation of the coating composition is shown in Table 1 below.

[0102] [Tables 1 Name or Reference Chemical Nature Function Dry Weight / 100g Total Weight / 100g Total Weight / 900g Dry Extract (%) Density (g / cm3) Lotus (Organic) Biopolymer Binder 15.97 89.6 798.3 17.82 1.1 Grape Vegetable Filler 9.0 9.0 88.2 100 1.37 DISPERBY K-192 Modified Polyether Dispersing Agent 0 1.4 13.23 0 1.05

[0103] Table 1 shows in particular the weight of the ingredients per 100 g of composition (Mtot / 100g) and per 900 g of composition (Mtot / 900g). This refers to the weight of the coating composition in its wet state, i.e., before it has dried. The Table 1 also shows dry matter of the product per 100g of formulation (Mdry / 100g) and the percentage of dry extract [(89.6 x 17.82) / 100 = 15.97].

[0104] The wet coating composition is applied to a cellulose substrate. Here, woven cotton or linen is used. The application is carried out by coating with a knife. The number of coats and the final thickness of the coated layer depend in particular on the binders used and the solids content. A low solids content affects the concentration of raisins in the coating composition. For example, for 6 g of raisins, between 15 g and 55 g of binders are required for the wet coating composition. It is recommended to apply or add thick coats to obtain an opaque and homogeneous final product. Adjustments can be made by adding a thickener.

[0105] Here, two coats are applied to the substrate. Between each application, drying is carried out at approximately 105°C for 25 minutes. Alternatively, drying can be carried out at 200°C for 1 minute.

[0106] The coated textile obtained meets the technical requirements.

[0107] Example 2.

[0108] The preparation and formulation, as well as the drying of the coating composition, is identical to Example 1.

[0109] The cellulose substrate is first coated with a layer of binder (Lotus) and then dried (approximately 105°C for 25 min). Two coats of coating composition are applied over the binder layer. Drying is carried out between each application.

[0110] The coated textile obtained meets the technical requirements and exhibits increased adhesion to the substrate. [YES] Example 3.

[0112] A coated textile is made in accordance with example 2.

[0113] A polyurethane-based topcoat is applied over the coating composition layer(s).

[0114] As an alternative to polyurethane, a biodegradable water repellent may be used. Optionally, other additives may be used in the topcoat.

[0115] The coated textile obtained meets the technical requirements, exhibits increased adhesion to the substrate, and has enhanced aesthetic qualities. In particular, the coated textile is pleasant to the touch.

[0116] Example 4

[0117] A coating composition is prepared according to the formulation in Table 2 below.

[0118] [Tables2] Name or Reference Chemical Nature Function Dry Weight / 100g Total Weight / 100g Total Weight / 900g Dry Extract (%) Density (g / cm3) Stahl RA-06 6-018 Acrylic Binder 12.95 37.0 132.62 35 1 Alberdingk ® Ren AC 8 003 VP Acrylic Binder 8.7 17.4 90 50 1.1 Grape Vegetable Filler 21.5 21.5 219.6 100 1.37 Water Natural Solvent 0 21.4 91.8 0 1 DISPERBY K-192 Modified Polyether Dispersing Agent 0 2.7 13.23 0 1.05

[0119] The bio-based content on a dry product basis is 68.5% (RA-066-018 has 35% bio-based content on a dry product basis, Alberdingk AC8003 has 45% on a dry product basis, and grapes have 100%). This formulation shows excellent results with regard to the properties of the coated textile.

[0120] Example 5.

[0121] A coating composition is prepared according to the formulation in Table 3 below.

[0122] [Tables3] Ingredients Weight (g) Weight (%) RA-066-018 (Binder) 74.26 37.04 Alberdingk® (Binder) 34.82 17.37 Grape 43.01 21.46 Water 42.92 21.41 Disperbyk® (Dispersant) 5.45 2.72

[0123] The coating composition is coated onto 100% cotton twill of 265 g / m2.

[0124] After drying, the coated textile has the dry weights shown in Table 4 below. below.

[0125] [Tables4] Ingredients Weight (g) Weight (%) RA - 066 - 018 25.99 30.08 Alberdingk® 17.41 20.15 Grapes 43.01 49.77 Water 0 0 Disperbyk® 0* 0*

[0126] (*)possible traces.

[0127] In the examples, grapes are sometimes referred to as fillers (tables). They are not inert fillers, since grapes contribute functions / properties to the textile. Grapes could potentially be considered an active ingredient, as they significantly contribute to the properties of the coated textile and the final product.

[0128] Ready-to-wear articles are manufactured with the coated textiles obtained in accordance with examples 1 to 4. In particular, handbags, jackets, and trousers have been produced.

[0129] The coated textile of the invention thus offers an environmentally friendly solution, while using commercially available components. Products made with the material of the invention exhibit unique granular properties thanks to the valorization of grapes.

[0130] Furthermore, the coated textile of the invention uses few different raw materials. This conserves and protects resources and avoids overconsumption.

[0131]

Claims

Demands

1. Coated textile comprising a support coated with a coating composition, characterized in that said support is made of cellulosic material and said composition comprises at least 35% by weight of desugared grape pomace and at least one bio-based binder, and in that said coated textile comprises in total at least 65% by weight of bio-based materials.

2. Coated textile according to claim 1, wherein the coating composition comprises at least 45%, preferably at least 50%, by weight of desugared grape pomace.

3. Coated textile according to any one of the preceding claims, wherein the textile comprises at least 70%, preferably 100%, by weight of bio-based materials.

4. Coated textile according to any one of the preceding claims, wherein said cellulosic material is selected from the group consisting of cotton, hemp, linen or a mixture thereof.

5. A coated textile according to any one of the preceding claims, wherein said cellulosic material has a minimum basis weight of 300 g / m²

6. ili. Coated textile according to any one of the preceding claims, wherein the coating composition consists of: 35% to 85%, preferably 30% to 50%, by weight of desugared grape pomace; 15% to 70%, preferably 50% to 65% of a first bio-based binder; and 0% to 50% of a second bio-based binder.

7. Textile coated according to any one of the preceding claims, wherein the coating composition consists of: about 30% by weight of a first binder, preferably RA-066-018, about 20% by weight of a second binder, preferably Alberdingk, about 50% by weight of desugared grape pomace, and optionally traces of a dispersing agent, preferably Disperbyk.

8. Coated textile according to any one of the preceding claims, wherein the grape pomace is derived from waste from viticulture and / or winemaking including grape skins and grape seeds.

9. Coated textile according to any one of the preceding claims, wherein the grape pomace has an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm.

10. Textile coated according to any one of the preceding claims, free from petroleum-based compounds and / or toxic compounds.

11. A method for manufacturing a coated textile according to any one of claims 1 to 10, comprising the following steps: -A - providing a support made of cellulosic material; -B - coating said support with a coating composition so as to obtain a wet coated material; -C - drying said wet coated material so as to obtain a coated textile.

12. A process according to claim 11, further comprising a step of manufacturing the coating composition including the following substeps: i. mixing grape pomace with water to obtain a wine sludge; ii. boiling said wine sludge to reduce the sugar content of the grape pomace by at least 90%, preferably 100%, to obtain moist desugared grape pomace; iii. filtering the wine sludge obtained in step ii to isolate a first filtrate composed of moist desugared grape pomace and residual sugar; iv. mixing the first filtrate with cold water to wash it; v. filtering the mixture obtained in step iv to obtain a second filtrate consisting mainly of moist desugared grape pomace; vi. dry said second filtrate until a friable marc material is obtained; vii.micronize said friable pomace material so as to obtain a desugared grape pomace powder having an average particle size of less than 0.310 mm, preferably less than or equal to 0.250 mm; viii. disperse the desugared grape pomace powder in at least one bio-based binder, and optionally add a dispersant and / or water, so as to obtain a coating composition.

13. A method according to any one of claims 11 to 12, wherein the coating composition in step -B- consists of:

14.

15. 20% to 75% by weight of desugared grape pomace; 30% to 70% of a first bio-based binder; 0% to 30% of a second bio-based binder; 20% to 45% water; and 0% to 3% dispersing agent. A process according to any one of claims 11 to 13, wherein the coating composition in step -B- consists of: about 35% to 40% by weight of a first binder, preferably 37.04% by weight of RA-066-018; about 20% to 25% by weight of a second binder, preferably 17.37% by weight of Alberdingk; about 20% to 25% by weight, preferably 21.46% by weight of grape pomace; about 20% to 25%, preferably 21.41%, by weight of water; and about 1% to 5% by weight of a dispersing agent, preferably 2.72% by weight of Disperbyk. Ready-to-wear garment made at least partly from a coated textile according to any one of claims 1 to 10.