EP0913518A1 - UV- filtering textile support, process for its manufacture and its uses - Google Patents

UV- filtering textile support, process for its manufacture and its uses Download PDF

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Publication number
EP0913518A1
EP0913518A1 EP98402696A EP98402696A EP0913518A1 EP 0913518 A1 EP0913518 A1 EP 0913518A1 EP 98402696 A EP98402696 A EP 98402696A EP 98402696 A EP98402696 A EP 98402696A EP 0913518 A1 EP0913518 A1 EP 0913518A1
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EP
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Prior art keywords
textile
textile according
compounds
coating
products
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EP98402696A
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German (de)
French (fr)
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EP0913518B1 (en
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Alain Barthelemy
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DHJ International
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DHJ International
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    • 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
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • 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

Definitions

  • the invention relates to a textile having properties protective against ultraviolet radiation.
  • the invention finally relates to a curtain or blind element comprising such a textile.
  • Ultraviolet radiation can also have consequences harmful to people's health.
  • document EP-A-0 693 483 describes compositions having filtration properties of ultraviolet rays, in particular UVA, intended for textile fibers.
  • the textile fibers are treated by padding for impregnating the surface of the textile fibers with the absorbent composition.
  • EP-A-0 728 749 describes derivatives of filtering triazines ultraviolet rays, in particular UVA rays, intended to increase the index of textile fiber sun protection.
  • the fibers are also treated by padding.
  • EP-A-0 774 539 describes a method for improving the sun protection index of colored textiles.
  • the wires colored, in particular polyester threads are immersed in baths containing agents filtering ultraviolet radiation.
  • document US-A-4,861,651 describes a breathable textile product comprising a layer of polymeric material located in the spaces present between the fibers of the textile product or comprising a layer of a porous polymeric material deposited on the surface of the textile product.
  • the polymeric material used in this document includes one or more several agents absorbing ultraviolet rays.
  • the object of the invention is to remedy this drawback by proposing a textile with improved sun protection index and constituting a barrier continuous and impervious to ultra-violet rays, in particular UVA and UVB.
  • Another subject of the invention relates to a preparation process of such a textile.
  • Another object of the invention relates to the uses of this textile.
  • Another object of the invention relates to a curtain or curtain element. awning with a textile with a high sun protection index.
  • the invention relates first of all to a textile with a protection index high solar.
  • the textile of the invention of the type comprising a knitted, woven and / or non-woven fabric obtained from natural, synthetic and / or artificial fibers, comprises on at least one of its faces a coating formed of one or more several protective coating layers, of practically zero vapor porosity and deposited with a grammage varying between approximately 10 and approximately 70 g / m 2 , the coating comprising one or more compounds filtering ultraviolet rays.
  • the virtually zero vapor porosity of the textile according to the invention corresponding to a virtual absence of holes in the coating deposited by coating, provides even better protection against rays ultra-violet.
  • the compounds filtering the ultraviolet rays are dispersed in the thickness of the coating.
  • Compounds filtering ultraviolet rays can be chosen among those known as agents absorbing ultraviolet radiation.
  • They include organic molecules, pigments minerals and dyes.
  • Organic molecules which can be used as a compound filtering ultraviolet rays include benzotriazoles, in particular the compounds of formula below: as well as the derivatives or mixtures of these products.
  • triazines in particular triazines substituted with one or more phenols as well as derivatives or mixtures of these products.
  • organic molecules which can be used include tetramethylpiperidines, in particular the compounds of formula below: the compounds comprising the following motif: the compounds of formula below: the compounds comprising the following motif: the compounds comprising the following motif: as well as the derivatives or mixtures of these products.
  • organic molecules which can be used include benzoates, in particular the compounds of formula below: as well as the derivatives or mixtures of these products.
  • the compound absorbing ultraviolet rays can be chosen from substituted acrylonitriles, oxanilides, cinnamates, malonates, as well as derivatives or mixtures of these products.
  • organic molecules which can be used include nickel complexes, in particular the compounds of formula below: as well as the derivatives or mixtures of these products.
  • Other usable ultraviolet filtering compounds include mineral pigments, including titanium dioxide, ultra-fine titanium dioxide, iron oxides.
  • the textile of the invention comprises a compound filtering ultraviolet rays described in the foregoing.
  • the textile of the invention comprises a mixture of two or more compounds filtering the ultra-violet rays described in the above.
  • the textile comprises, expressed as a percentage in weight relative to the weight of the coating, from 1 to 10% of filtering compound ultraviolet rays.
  • the coating comprises at least one layer protective made from a polymeric material or a mixture of polymeric materials.
  • Useful polymeric materials include polymers or polyurethane, acrylic and / or polyvinyl based copolymers.
  • Polyurethane-based polymers or copolymers include especially polyisocyanates, polyether polyols, polyesters of polyols.
  • acrylic-based polymers or copolymers include, in particular, acrylonitrile derivatives, acrylamide derivatives, derivatives of acrylic ester, in particular methacrylamide, methacrylates lower alkyl, especially methyl, ethyl, propyl, butyl or pentyl.
  • Polyvinyl-based polymers or copolymers which can be used include in particular polyvinyl acetals, in particular acetal polyvinyl, polyvinyl butyral.
  • the coating further comprises at minus a compound with a non-sticky effect.
  • These may in particular be products based on paraffin, silica, silicone, a surfactant or a mixture of these products.
  • the coating further comprises at least one crosslinking agent.
  • crosslinking agents are known and commonly used in the textile industry and therefore do not need to be described in more detail here.
  • It may especially be a melamine-based resin, a isocyanate blocked or not, an aziridine, or a mixture of these products.
  • the coating comprises a layer made from a polymeric material or a mixture of materials polymeric.
  • the coating comprises several layers of polymeric material, the different layers being obtained from identical or different polymeric materials.
  • each layer contains at least one compound filtering out ultraviolet rays or that only one (or some) of the layers, for example the outer layer, contains at least one compound filtering.
  • the coating further comprises a or several pigmentary compounds used in addition to filtration for eliminate part of the visible light spectrum.
  • Compounds of this type which can be used include pigments aluminum or compounds based on organic pigments.
  • the pigmentary compounds can be present in each of the coating layers or only be present in one or a few coating layers.
  • the coating includes two layers of polymeric materials as described in this who is before.
  • the textile can be chosen from woven, knitted and / or non-woven products, as well as mixtures of these products.
  • the fibers which can be used include in particular natural fibers, synthetic or artificial, in particular polyamide, polyester fibers, glass, cotton, wool, viscose, linen fibers, as well as derivatives or mixtures of these products.
  • the invention also relates to a process for preparing the textile. of the invention.
  • the preparation process includes the step of depositing on at least one side of a fabric a coating formed of at least one layer protective as defined in the above, the coating comprising a or several compounds filtering ultraviolet rays.
  • the protective layers are deposited with a grammage varying between 10 and 70 g / m ⁇ , preferably between 10 and 50 g / m ⁇ .
  • two protective layers are deposited on the textile.
  • the first layer for example the inner layer, can be deposited with a heavier grammage than the second layer, for example the outer layer.
  • the deposition in itself of the coating formed by the layer or layers protective can be achieved by coating, including direct coating or by transfer.
  • the coating can be carried out using conventional devices such as devices for coating by scraping, in particular scraping in air, scraping on apron, scraping on cylinder, and also coating devices to the rotating frame.
  • the coated textile is then dried at a temperature, optionally stepped, varying between 90 ° C and 150 ° C.
  • Drying can be carried out using any conventional means such as than hot air, infrared, etc.
  • This drying operation can be carried out by scrolling the textile coated in a tunnel oven.
  • the dried textile coated with the protective layer (s) is then subjected to a calendering step.
  • Calendering makes it possible in particular to obtain a product having a smooth appearance and in which the protective layer (s) are attached to the fabric In an acceptable way.
  • Calendering can be carried out for example with a cylinder of calendering, at a pressure between 8.5 kg / cm and 400 kg / cm, of preferably between 16 kg / cm and 400 kg / cm, and at a temperature between 80 ° C and 200 ° C, preferably between 100 ° C and 190 ° C.
  • Calendering can be carried out after the deposition of each layer protective layer or after the deposition of all the protective layers deposited on the textile.
  • the calendering time may vary depending on the temperature used.
  • the coated textile is then subjected to a polymerization step of the protective layer (s), by heating to a temperature comprised between 150 ° C and 200 ° C.
  • polymerization can be achieved by heating the textile coated at a temperature of around 170 ° C for a period of around 1.30 min.
  • the heating time can be shortened by increasing the temperature used. So a one minute heating can be sufficient when a temperature of the order of 180 ° C is applied.
  • the polymerization is carried out at a varying speed between 10 and 30 m / min.
  • the polymerization can be carried out by passage through an oven tunnel or any other appropriate device and using any conventional means, for example heating by hot air, by contact.
  • the textile of the invention can be printed by a conventional transfer coating method, using sublimable inks deposited on a support, such as a paper support.
  • the decorative pattern is printed in the thickness of the coating.
  • the invention also relates to the uses of the textile of the invention.
  • the textile of the invention can be used for the protection of furniture, works of art, such as paintings, more generally any material may suffer degradation of its characteristics due to radiation ultraviolet. It can also be used to protect people likely to undergo ultraviolet radiation.
  • the textile of the invention can be used for the production of curtains, blinds, in particular slat blinds, roller blinds; screen ; Beach umbrella ; parasol; awning; protective envelope such as bag, sachet or similar products; protective cover or canvas.
  • the invention also relates to a curtain or curtain element. blind using the textile of the invention.
  • the curtain or blind element of the invention intended to be placed at near an opening, such as a window, French window or the like, view of protecting furniture, works of art and materials from ultraviolet radiation and / or persons, includes at least one textile as defined in what precedes.
  • the known fabrics comprising by example of warp threads 1 and weft threads 2 are treated so as to have, around their external surface, a protective coating 3 against the ultraviolet radiation.
  • ultra-violet radiation represented schematically by arrows in the figures, are stopped when they arrive on fibers but can pass between the fibers or meshes fabric.
  • the textile of the invention as shown diagrammatically in the Figures 3 and 4, for example comprises warp threads 1 and weft threads 2.
  • the fabric is covered with a protective coating 4 as defined in what precedes stopping ultraviolet radiation, whatever its "point of impact", for example on a warp 1 or a weft 2, or in space remaining between the intertwining of the wires.
  • a textile support made of polyester fibers, comprising 47 threads of chain of a unit titration of 23 dtex and 50 weft threads of a unit titration of 167 dtex and a weight per square meter of 70-75 g is fed to a coating device comprising an air scraping system.
  • the acrylic dispersion-filter product mixture is then deposited on the surface of the textile, with a grammage of 15 g / m 2 .
  • the coated textile is then dried in a tunnel oven (ream Brückner) with seven compartments, at a stepped temperature varying between 100 ° C and 150 ° C.
  • the coated textile is then brought into contact with a cylinder of calendering heated to a temperature of 100 ° C. and to a pressure of 40 kg / cm, at a speed of 20 m per min.
  • the polymerization of the coating layer is carried out by passing textile coated in a tunnel oven (Brückner train) with seven compartments, heated to a temperature of 180 ° C, at a speed of 15 m / min.
  • a tunnel oven Brückner train
  • the textile obtained shows an index filtration greater than 50. Filtration of ultra-violet radiation between 250 and 370 nm is greater than 95%.
  • a 100% bleached cotton support comprising 20 threads of a unit titration of 34 dtex and 20 weft threads of a unit titration of 34 dtex, weighing 115 g per square meter is fed to a coating device having an air scraping system.
  • the formulation obtained is deposited with a grammage of 20 g / m 2 .
  • the coated textile is then dried in a tunnel oven (ream Brückner) with six compartments, at a stepped temperature of between 100 ° C and 160 ° C.
  • the coated textile is then brought into contact with a cylinder of calendering heated to a temperature of 100 ° C. and to a pressure of 40 kg / cm, at a speed of 25 m per min.
  • the polymerization of the protective layer is carried out by passing textile coated in a tunnel oven (Brückner train) with seven compartments, heated to a temperature of 180 ° C, at a speed of 15 m / min.
  • a tunnel oven Brückner train
  • the coated textile obtained has a filtration index greater than 93 % between 250 nm and 370 nm.
  • UVA filtration is also improved.
  • the textile support of example 1 above is coated, using a coating device comprising a scraping system in the air, with the acrylic dispersion of Example 1 in which the SOLARTEX filtering product CUT (registered trademark) is replaced by 5% by weight of a filtering product at benzophenone base (product marketed under the name LOWILITE 20 (registered trademark) by GREAT LAKES (Switzerland)) and 1% by weight of a yellow dye marketed under the name MINERPRINT RN (registered trademark) by the company MINERVA (Italy).
  • SOLARTEX filtering product CUT registered trademark
  • LOWILITE 20 registered trademark
  • MINERPRINT RN registered trademark
  • the mixing is carried out in the same way as in the examples previous.
  • the aqueous dispersion is deposited on the textile support with a grammage of 15 g / m ⁇ .
  • the coated textile undergoes a drying, calendering and polymerization of the protective layer in the same way as in Example 1 above.
  • the product obtained shows a filtration index greater than 50 and a improved filtration of ultraviolet radiation up to 470 nm.

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

Abstract

Textile comprising knitted, woven or non-woven fabric, which is obtained from natural, synthetic or artificial fibers has, on at least one of its faces, a coating consisting of one or more protective layers, with virtually zero porosity, and a mass varying between 10 and 70gm<-2>; the coating containing one or more components for filtering UV radiation. Independent claims are also included for method of preparing the textile; and use of the textile for protecting furniture and objects d'art against UV radiation, particularly in form of curtain.

Description

L'invention se rapporte à un textile possédant des propriétés protectrices vis-à-vis du rayonnement ultra-violet.The invention relates to a textile having properties protective against ultraviolet radiation.

Elle se rapporte également à un procédé de préparation d'un tel textile, ainsi que ses utilisations.It also relates to a process for preparing such a textile, as well as its uses.

L'invention se rapporte enfin à un élément de rideau ou de store comprenant un tel textile.The invention finally relates to a curtain or blind element comprising such a textile.

Les effets néfastes des rayons ultra-violets, produits notamment par le soleil, sont connus depuis longtemps.The harmful effects of ultraviolet rays, produced in particular by the sun, have been known for a long time.

On sait par exemple que les meubles, tissus ou peintures exposés au soleil subissent une décoloration et un vieillissement accélérés.We know for example that the furniture, fabrics or paintings exposed to sun undergo accelerated discoloration and aging.

Le rayonnement ultra-violet peut également avoir des conséquences néfastes sur la santé des personnes.Ultraviolet radiation can also have consequences harmful to people's health.

Il est connu en effet qu'une trop longue exposition au soleil peut entraíner divers troubles, notamment des maladies de la peau.It is known that too long exposure to the sun can cause various disorders, including skin diseases.

On a donc proposé dans l'industrie textile différents systèmes de protection des vêtements contre le rayonnement ultra-violet.We have therefore proposed in the textile industry different systems of protection of clothing against ultraviolet radiation.

Ainsi, le document EP-A-0 693 483 décrit des compositions possédant des propriétés de filtration des rayons ultra-violets, notamment des UVA, destinés à des fibres textiles.Thus, document EP-A-0 693 483 describes compositions having filtration properties of ultraviolet rays, in particular UVA, intended for textile fibers.

Dans ce document, les fibres textiles sont traitées par foulardage pour imprégner la surface des fibres textiles de la composition absorbante. In this document, the textile fibers are treated by padding for impregnating the surface of the textile fibers with the absorbent composition.

Le document EP-A-0 728 749 décrit des dérivés de triazines filtrant les rayons ultra-violets, notamment les UVA, destinés à augmenter l'indice de protection solaire de fibres textiles.EP-A-0 728 749 describes derivatives of filtering triazines ultraviolet rays, in particular UVA rays, intended to increase the index of textile fiber sun protection.

Dans ce second document, les fibres sont également traitées par foulardage.In this second document, the fibers are also treated by padding.

Le document EP-A-0 774 539 décrit un procédé pour améliorer l'indice de protection solaire de textiles colorés. Dans ce document, les fils colorés, notamment des fils de polyester, sont plongés dans des bains contenant des agents filtrant le rayonnement ultra-violet.EP-A-0 774 539 describes a method for improving the sun protection index of colored textiles. In this document, the wires colored, in particular polyester threads, are immersed in baths containing agents filtering ultraviolet radiation.

Il a été également proposé d'augmenter l'indice de protection solaire, en déposant sur le produit textile une couche d'un matériau comprenant des agents absorbant le rayonnement ultra-violet.It has also been proposed to increase the sun protection index, by depositing on the textile product a layer of a material comprising agents absorbing ultraviolet radiation.

Ainsi, le document US-A-4 861 651 décrit un produit textile respirable comprenant une couche d'un matériau polymérique localisé dans les espaces présents entre les fibres du produit textile ou comprenant une couche d'un matériau polymérique poreux déposé à la surface du produit textile.Thus, document US-A-4,861,651 describes a breathable textile product comprising a layer of polymeric material located in the spaces present between the fibers of the textile product or comprising a layer of a porous polymeric material deposited on the surface of the textile product.

Le matériau polymérique utilisé dans ce document comprend un ou plusieurs agents absorbant les rayons ultra-violets.The polymeric material used in this document includes one or more several agents absorbing ultraviolet rays.

Si ces différents traitements permettent effectivement d'augmenter l'indice de protection solaire des fibres et produits textiles, les résultats obtenus ne sont généralement pas suffisamment satisfaisants, en raison par exemple de la densité des fils composant les textiles.If these different treatments actually increase the sun protection index for fibers and textile products, the results obtained are generally not satisfactory enough, for example due to the density of the threads composing the textiles.

L'invention a pour but de remédier à cet inconvénient en proposant un textile à indice de protection solaire amélioré et constituant une barrière continue et étanche aux rayons ultra-violets, notamment les UVA et UVB. The object of the invention is to remedy this drawback by proposing a textile with improved sun protection index and constituting a barrier continuous and impervious to ultra-violet rays, in particular UVA and UVB.

Un autre objet de l'invention concerne un procédé de préparation d'un tel textile.Another subject of the invention relates to a preparation process of such a textile.

Un autre objet de l'invention concerne les utilisations de ce textile.Another object of the invention relates to the uses of this textile.

Un autre objet de l'invention concerne un élément de rideau ou de store comportant un textile à indice de protection solaire élevé.Another object of the invention relates to a curtain or curtain element. awning with a textile with a high sun protection index.

L'invention concerne tout d'abord un textile à indice de protection solaire élevé.The invention relates first of all to a textile with a protection index high solar.

Le textile de l'invention, du type comprenant un tissu tricoté, tissé et/ou non tissé obtenu à partir de fibres naturelles, synthétiques et/ou artificielles, comporte sur au moins l'une de ses faces un revêtement formé d'une ou plusieurs couches protectrices d'enduction, d'une porosité à la vapeur pratiquement nulle et déposées avec un grammage variant entre environ 10 et environ 70g/m2, le revêtement comprenant un ou plusieurs composés filtrant les rayons ultra-violets.The textile of the invention, of the type comprising a knitted, woven and / or non-woven fabric obtained from natural, synthetic and / or artificial fibers, comprises on at least one of its faces a coating formed of one or more several protective coating layers, of practically zero vapor porosity and deposited with a grammage varying between approximately 10 and approximately 70 g / m 2 , the coating comprising one or more compounds filtering ultraviolet rays.

La porosité à la vapeur pratiquement nulle du textile selon l'invention, correspondant à une quasi-absence de trous dans le revêtement déposé par enduction, permet d'obtenir une protection encore améliorée contre les rayons ultra-violets.The virtually zero vapor porosity of the textile according to the invention, corresponding to a virtual absence of holes in the coating deposited by coating, provides even better protection against rays ultra-violet.

Selon l'invention, les composés filtrant les rayons ultra-violets sont dispersés dans l'épaisseur du revêtement.According to the invention, the compounds filtering the ultraviolet rays are dispersed in the thickness of the coating.

Les composés filtrant les rayons ultra-violets peuvent être choisis parmi ceux connus comme agent absorbant le rayonnement ultra-violet.Compounds filtering ultraviolet rays can be chosen among those known as agents absorbing ultraviolet radiation.

Ils comprennent notamment les molécules organiques, les pigments minéraux et les colorants. They include organic molecules, pigments minerals and dyes.

Des molécules organiques utilisables en tant que composé filtrant les rayons ultra-violets comprennent les benzotriazoles, notamment les composés de formule ci-après :

Figure 00040001
Figure 00040002
Figure 00040003
   ainsi que les dérivés ou mélanges de ces produits.Organic molecules which can be used as a compound filtering ultraviolet rays include benzotriazoles, in particular the compounds of formula below:
Figure 00040001
Figure 00040002
Figure 00040003
as well as the derivatives or mixtures of these products.

D'autres molécules organiques utilisables comprennent les triazines, notamment les triazines substituées par un ou plusieurs phénols ainsi que les dérivés ou mélanges de ces produits.Other usable organic molecules include triazines, in particular triazines substituted with one or more phenols as well as derivatives or mixtures of these products.

D'autres molécules organiques utilisables comprennent les benzophénones, notamment les composés de formule ci-après :

Figure 00050001
   dans laquelle :

  • R1 représente un groupe alkyle en C1-15, notamment un groupe méthyle, éthyle, propyle, butyle, octyle ; un groupe amyle, un groupe dodécyloxy ; un groupe hydroxy,
  • R2 représente un atome d'hydrogène, un groupe alkyle en C1-15 , notamment un groupe méthyle, éthyle, propyle, butyle, octyle ;
  • R3 représente un atome d'hydrogène, un atome d'halogène, notamment un atome de chlore, et
  • R4 représente un atome d'hydrogène, un groupe S03H, ainsi que les dérivés ou mélanges de ces produits.
    • Other organic molecules which can be used include benzophenones, in particular the compounds of formula below:
    Figure 00050001
    in which :
  • R1 represents a C 1-15 alkyl group, in particular a methyl, ethyl, propyl, butyl, octyl group; an amyl group, a dodecyloxy group; a hydroxy group,
  • R2 represents a hydrogen atom, a C 1-15 alkyl group, in particular a methyl, ethyl, propyl, butyl, octyl group;
  • R3 represents a hydrogen atom, a halogen atom, in particular a chlorine atom, and
  • R4 represents a hydrogen atom, an SO 3 H group, as well as the derivatives or mixtures of these products.

    • D'autres molécules organiques utilisables comprennent les tétraméthylpipéridines, notamment
       les composés de formule ci-après :

    Figure 00060001
       les composés comportant le motif ci-après :
    Figure 00060002
       les composés de formule ci-après :
    Figure 00060003
    Figure 00070001
       les composés comportant le motif ci-après :
    Figure 00070002
       les composés comportant le motif ci-après :
    Figure 00070003
       ainsi que les dérivés ou mélanges de ces produits.Other organic molecules which can be used include tetramethylpiperidines, in particular
    the compounds of formula below:
    Figure 00060001
    the compounds comprising the following motif:
    Figure 00060002
    the compounds of formula below:
    Figure 00060003
    Figure 00070001
    the compounds comprising the following motif:
    Figure 00070002
    the compounds comprising the following motif:
    Figure 00070003
    as well as the derivatives or mixtures of these products.

    D'autres molécules organiques utilisables comprennent les benzoates, notamment les composés de formule ci-après :

    Figure 00080001
    Figure 00080002
       ainsi que les dérivés ou mélanges de ces produits.Other organic molecules which can be used include benzoates, in particular the compounds of formula below:
    Figure 00080001
    Figure 00080002
    as well as the derivatives or mixtures of these products.

    En variante, le composé absorbant les rayons ultra-violets peut être choisi parmi les acrylonitriles substituées, les oxanilides, les cinnamates, les malonates, ainsi que les dérivés ou mélanges de ces produits.As a variant, the compound absorbing ultraviolet rays can be chosen from substituted acrylonitriles, oxanilides, cinnamates, malonates, as well as derivatives or mixtures of these products.

    D'autres molécules organiques utilisables comprennent les complexes de nickel, notamment les composés de formule ci-après :

    Figure 00090001
    Figure 00090002
       ainsi que les dérivés ou mélanges de ces produits.Other organic molecules which can be used include nickel complexes, in particular the compounds of formula below:
    Figure 00090001
    Figure 00090002
    as well as the derivatives or mixtures of these products.

    D'autres composés filtrant les rayons ultra-violets utilisables comprennent les pigments minéraux, notamment le dioxyde de titane, le dioxyde de titane ultra-fin, les oxydes de fer.Other usable ultraviolet filtering compounds include mineral pigments, including titanium dioxide, ultra-fine titanium dioxide, iron oxides.

    Selon un mode de réalisation, le textile de l'invention comprend un composé filtrant les rayons ultra-violets décrit dans ce qui précède.According to one embodiment, the textile of the invention comprises a compound filtering ultraviolet rays described in the foregoing.

    Selon un autre mode de réalisation, le textile de l'invention comprend un mélange de deux ou plus composés filtrant les rayons ultra-violets décrits dans ce qui précède. According to another embodiment, the textile of the invention comprises a mixture of two or more compounds filtering the ultra-violet rays described in the above.

    Selon l'invention, le textile comprend, exprimé en pourcentage en poids par rapport au poids du revêtement, de 1 à 10 % de composé filtrant les rayons ultra-violets.According to the invention, the textile comprises, expressed as a percentage in weight relative to the weight of the coating, from 1 to 10% of filtering compound ultraviolet rays.

    Selon l'invention, le revêtement comprend au moins une couche protectrice réalisée à partir d'un matériau polymérique ou d'un mélange de matériaux polymériques.According to the invention, the coating comprises at least one layer protective made from a polymeric material or a mixture of polymeric materials.

    Des matériaux polymériques utilisables comprennent les polymères ou copolymères à base polyuréthanne, acrylique et/ou polyvinylique.Useful polymeric materials include polymers or polyurethane, acrylic and / or polyvinyl based copolymers.

    Des polymères ou copolymères à base polyuréthanne comprennent notamment les polyisocyanates, les polyéthers de polyols, les polyesters de polyols.Polyurethane-based polymers or copolymers include especially polyisocyanates, polyether polyols, polyesters of polyols.

    Des polymères ou copolymères à base acrylique utilisables comprennent notamment les dérivés d'acrylonitrile, les dérivés d'acrylamide, les dérivés d'ester acrylique, notamment le méthacrylamide, les méthacrylates d'alkyle inférieur, notamment de méthyle, éthyle, propyle, butyle ou pentyle.Usable acrylic-based polymers or copolymers include, in particular, acrylonitrile derivatives, acrylamide derivatives, derivatives of acrylic ester, in particular methacrylamide, methacrylates lower alkyl, especially methyl, ethyl, propyl, butyl or pentyl.

    Des polymères ou copolymères à base polyvinylique utilisables comprennent notamment les acétals polyvinyliques, notamment l'acétal polyvinylique, le butyral polyvinylique.Polyvinyl-based polymers or copolymers which can be used include in particular polyvinyl acetals, in particular acetal polyvinyl, polyvinyl butyral.

    Selon un mode de réalisation, le revêtement comprend de plus au moins un composé à effet non collant.According to one embodiment, the coating further comprises at minus a compound with a non-sticky effect.

    De tels composés à effet non collant sont connus en eux-mêmes et n'ont pas pour cette raison à être explicités plus en détail ici.Such compounds with a non-sticky effect are known in themselves and do not therefore need to be explained in more detail here.

    Il peut s'agir notamment de produits à base de paraffine, de silice, de silicone, d'un agent de surface ou d'un mélange de ces produits. These may in particular be products based on paraffin, silica, silicone, a surfactant or a mixture of these products.

    Selon un autre mode de réalisation, le revêtement comprend de plus au moins un agent de réticulation. De tels agents de réticulation sont connus et couramment utilisés dans l'industrie textile et n'ont donc pas besoin d'être décrits plus en détail ici.According to another embodiment, the coating further comprises at least one crosslinking agent. Such crosslinking agents are known and commonly used in the textile industry and therefore do not need to be described in more detail here.

    Il peut s'agir notamment de résine à base de mélamine, d'un isocyanate bloqué ou non, d'une aziridine, ou d'un mélange de ces produits.It may especially be a melamine-based resin, a isocyanate blocked or not, an aziridine, or a mixture of these products.

    Selon un mode de réalisation, le revêtement comprend une couche réalisée à partir d'un matériau polymérique ou d'un mélange de matériaux polymériques.According to one embodiment, the coating comprises a layer made from a polymeric material or a mixture of materials polymeric.

    Selon une autre forme de réalisation, le revêtement comprend plusieurs couches de matériau polymérique, les différentes couches étant obtenues à partir de matériaux polymériques identiques ou différents entre eux.According to another embodiment, the coating comprises several layers of polymeric material, the different layers being obtained from identical or different polymeric materials.

    On peut prévoir que chaque couche contient au moins un composé filtrant les rayons ultra-violets ou que l'une (ou quelques-unes) seulement des couches, par exemple la couche externe, contienne au moins un composé filtrant.We can predict that each layer contains at least one compound filtering out ultraviolet rays or that only one (or some) of the layers, for example the outer layer, contains at least one compound filtering.

    Selon une forme de réalisation, le revêtement comprend de plus un ou plusieurs composés pigmentaires utilisés en complément de filtration pour éliminer une partie du spectre de la lumière visible.According to one embodiment, the coating further comprises a or several pigmentary compounds used in addition to filtration for eliminate part of the visible light spectrum.

    Des composés de ce type utilisables comprennent des pigments d'aluminium ou les composés à base de pigments organiques.Compounds of this type which can be used include pigments aluminum or compounds based on organic pigments.

    Les composés pigmentaires peuvent être présents dans chacune des couches du revêtement ou bien n'être présents que dans l'une ou quelques couches du revêtement. The pigmentary compounds can be present in each of the coating layers or only be present in one or a few coating layers.

    Selon un mode de réalisation particulier de l'invention, le revêtement comprend deux couches de matériaux polymériques tels que décrits dans ce qui précède.According to a particular embodiment of the invention, the coating includes two layers of polymeric materials as described in this who is before.

    Le textile peut être choisi parmi les produits tissés, tricotés et/ou non-tissés, ainsi que les mélanges de ces produits.The textile can be chosen from woven, knitted and / or non-woven products, as well as mixtures of these products.

    Il peut être obtenu à partir de fibres identiques entre elles ou comprendre un mélange de fibres.It can be obtained from fibers which are identical to each other or include a mixture of fibers.

    Les fibres utilisables comprennent notamment les fibres naturelles, synthétiques ou artificielles, notamment les fibres de polyamide, de polyester, les fibres de verre, de coton, de laine, de viscose, de lin, ainsi que les dérivés ou mélanges de ces produits.The fibers which can be used include in particular natural fibers, synthetic or artificial, in particular polyamide, polyester fibers, glass, cotton, wool, viscose, linen fibers, as well as derivatives or mixtures of these products.

    L'invention concerne également un procédé de préparation du textile de l'invention.The invention also relates to a process for preparing the textile. of the invention.

    Le procédé de préparation comprend l'étape consistant à déposer sur au moins une face d'un tissu un revêtement formé d'au moins une couche protectrice telle que définie dans ce qui précède, le revêtement comprenant un ou plusieurs composés filtrant les rayons ultra-violets.The preparation process includes the step of depositing on at least one side of a fabric a coating formed of at least one layer protective as defined in the above, the coating comprising a or several compounds filtering ultraviolet rays.

    Selon un mode de réalisation, les couches protectrices sont déposées avec un grammage variant entre 10 et 70 g/m··, de préférence entre 10 et 50 g/m··.According to one embodiment, the protective layers are deposited with a grammage varying between 10 and 70 g / m ·· , preferably between 10 and 50 g / m ·· .

    Ce grammage n'a qu'une valeur indicative. En effet, certains textiles peuvent nécessiter un grammage plus élevé ou au contraire plus faible.This grammage has only an indicative value. Indeed, some textiles may require a higher grammage or, on the contrary, lower grammage.

    Selon un mode de réalisation, deux couches protectrices sont déposées sur le textile. La première couche, par exemple la couche interne, peut être déposée avec un grammage plus important que la seconde couche, par exemple la couche externe. According to one embodiment, two protective layers are deposited on the textile. The first layer, for example the inner layer, can be deposited with a heavier grammage than the second layer, for example the outer layer.

    Le dépôt en lui-même du revêtement formé de la ou des couches protectrices peut être réalisé par enduction, notamment enduction directe ou par transfert.The deposition in itself of the coating formed by the layer or layers protective can be achieved by coating, including direct coating or by transfer.

    L'enduction peut être réalisée en utilisant des dispositifs classiques tels que les dispositifs d'enduction par raclage, notamment raclage en l'air, raclage sur tablier, raclage sur cylindre, et également les dispositifs d'enduction au cadre rotatif.The coating can be carried out using conventional devices such as devices for coating by scraping, in particular scraping in air, scraping on apron, scraping on cylinder, and also coating devices to the rotating frame.

    Le textile enduit est ensuite séché à une température, éventuellement étagée, variant entre 90°C et 150°C.The coated textile is then dried at a temperature, optionally stepped, varying between 90 ° C and 150 ° C.

    Le séchage peut être réalisé à l'aide de tout moyen conventionnel tel que air chaud, infra-rouge, etc.Drying can be carried out using any conventional means such as than hot air, infrared, etc.

    Cette opération de séchage peut être réalisée en faisant défiler le textile enduit dans un four tunnel.This drying operation can be carried out by scrolling the textile coated in a tunnel oven.

    Le textile séché et revêtu de la ou des couches protectrices est ensuite soumis à une étape de calandrage.The dried textile coated with the protective layer (s) is then subjected to a calendering step.

    Le calandrage permet notamment d'obtenir un produit possédant un aspect lisse et dans lequel la ou les couches protectrices sont fixées sur le tissu de façon satisfaisante.Calendering makes it possible in particular to obtain a product having a smooth appearance and in which the protective layer (s) are attached to the fabric In an acceptable way.

    Le calandrage peut être réalisé par exemple avec un cylindre de calandrage, à une pression comprise entre 8,5 kg/cm et 400 kg/cm, de préférence comprise entre 16 kg/cm et 400 kg/cm, et à une température comprise entre 80°C et 200°C, de préférence comprise entre 100°C et 190°C.Calendering can be carried out for example with a cylinder of calendering, at a pressure between 8.5 kg / cm and 400 kg / cm, of preferably between 16 kg / cm and 400 kg / cm, and at a temperature between 80 ° C and 200 ° C, preferably between 100 ° C and 190 ° C.

    Un calandrage peut être effectué après le dépôt de chaque couche protectrice ou après le dépôt de toutes les couches protectrices déposées sur le textile. Calendering can be carried out after the deposition of each layer protective layer or after the deposition of all the protective layers deposited on the textile.

    La durée du calandrage peut varier en fonction de la température utilisée.The calendering time may vary depending on the temperature used.

    Le textile enduit est ensuite soumis à une étape de polymérisation de la ou des couches protectrices, par chauffage à une température comprise entre 150°C et 200°C.The coated textile is then subjected to a polymerization step of the protective layer (s), by heating to a temperature comprised between 150 ° C and 200 ° C.

    Par exemple, la polymérisation peut être obtenue en chauffant le textile enduit à une température de l'ordre de 170°C pendant une durée de l'ordre de 1,30 min.For example, polymerization can be achieved by heating the textile coated at a temperature of around 170 ° C for a period of around 1.30 min.

    La durée du chauffage peut être diminuée en augmentant la température utilisée. Ainsi, un chauffage d'une durée d'une minute peut être suffisante lorsqu'une température de l'ordre de 180°C est appliquée.The heating time can be shortened by increasing the temperature used. So a one minute heating can be sufficient when a temperature of the order of 180 ° C is applied.

    Généralement, la polymérisation est réalisée à une vitesse variant entre 10 et 30 m/min.Generally, the polymerization is carried out at a varying speed between 10 and 30 m / min.

    La polymérisation peut être effectuée par passage dans un four tunnel ou tout autre dispositif approprié et en utilisant tout moyen conventionnel, par exemple chauffage par air chaud, par contact.The polymerization can be carried out by passage through an oven tunnel or any other appropriate device and using any conventional means, for example heating by hot air, by contact.

    Selon une forme de réalisation, le textile de l'invention peut être imprimé par une méthode classique d'enduction transfert, en utilisant des encres sublimables déposées sur un support, tel qu'un support papier.According to one embodiment, the textile of the invention can be printed by a conventional transfer coating method, using sublimable inks deposited on a support, such as a paper support.

    Selon cette variante, le motif décoratif est imprimé dans l'épaisseur du revêtement.According to this variant, the decorative pattern is printed in the thickness of the coating.

    L'invention se rapporte également aux utilisations du textile de l'invention. The invention also relates to the uses of the textile of the invention.

    Le textile de l'invention peut être utilisé pour la protection des meubles, objets d'art, tels que peintures, plus généralement tout matériau pouvant subir une dégradation de ses caractéristiques à cause du rayonnement ultra-violet. Il peut être utilisé également pour la protection des personnes susceptibles de subir un rayonnement ultra-violet.The textile of the invention can be used for the protection of furniture, works of art, such as paintings, more generally any material may suffer degradation of its characteristics due to radiation ultraviolet. It can also be used to protect people likely to undergo ultraviolet radiation.

    Par exemple, le textile de l'invention peut être utilisé pour la réalisation de rideau, store, notamment store à lamelles, store enrouleur ; paravent ; parasol ; ombrelle ; auvent ; enveloppe de protection telle que sac, sachet ou produits similaires ; couverture ou toile de protection.For example, the textile of the invention can be used for the production of curtains, blinds, in particular slat blinds, roller blinds; screen ; Beach umbrella ; parasol; awning; protective envelope such as bag, sachet or similar products; protective cover or canvas.

    L'invention se rapporte également à un élément de rideau ou de store utilisant le textile de l'invention.The invention also relates to a curtain or curtain element. blind using the textile of the invention.

    L'élément de rideau ou de store de l'invention, destiné à être placé à proximité d'une ouverture, telle qu'une fenêtre, une porte-fenêtre ou similaire, en vue de protéger du rayonnement ultra-violet les meubles, objets d'art, matériaux et/ou personnes, comprend au moins un textile tel que défini dans ce qui précède.The curtain or blind element of the invention, intended to be placed at near an opening, such as a window, French window or the like, view of protecting furniture, works of art and materials from ultraviolet radiation and / or persons, includes at least one textile as defined in what precedes.

    D'autres avantages et caractéristiques de l'invention apparaítront dans la description qui suit de modes de réalisation de l'invention, ainsi qu'aux figures annexées qui s'y rapportent, et dans lesquelles :

    • la figure 1 représente une vue schématique en perspective d'un textile de l'art antérieur possédant des propriétés protectrices contre les rayonnements ultra-violets ;
    • la figure 2 représente une vue en coupe selon la ligne A-A' de la figure 1 ;
    • la figure 3 représente une vue schématique en perspective d'un mode de réalisation du textile de l'invention ;
    • la figure 4 représente une vue en coupe suivant la ligne B-B' de la figure 3.
    • la figure 5 est une courbe du taux de transmission lumineuse D en fonction de la longueur d'ondes L, obtenue avec le textile de l'exemple 1.
    Other advantages and characteristics of the invention will appear in the following description of embodiments of the invention, as well as in the appended figures which relate thereto, and in which:
    • FIG. 1 represents a schematic perspective view of a textile of the prior art having protective properties against ultraviolet radiation;
    • 2 shows a sectional view along line AA 'of Figure 1;
    • FIG. 3 represents a schematic perspective view of an embodiment of the textile of the invention;
    • FIG. 4 represents a sectional view along line BB 'of FIG. 3.
    • FIG. 5 is a curve of the light transmission rate D as a function of the wavelength L, obtained with the textile of example 1.

    Ainsi qu'il apparaít sur les figures, les tissus connus comprenant par exemple des fils de chaíne 1 et des fils de trame 2 sont traités de façon à posséder, autour de leur surface externe, un revêtement protecteur 3 contre le rayonnement ultra-violet.As it appears in the figures, the known fabrics comprising by example of warp threads 1 and weft threads 2 are treated so as to have, around their external surface, a protective coating 3 against the ultraviolet radiation.

    Dans ces textiles de l'art antérieur, les rayonnements ultra-violets, représentés schématiquement par des flèches sur les figures, sont arrêtés lorsqu'ils arrivent sur des fibres mais peuvent passer entre les fibres ou mailles du tissu.In these textiles of the prior art, ultra-violet radiation, represented schematically by arrows in the figures, are stopped when they arrive on fibers but can pass between the fibers or meshes fabric.

    Le textile de l'invention, tel que représenté schématiquement sur les figures 3 et 4, comporte par exemple des fils de chaíne 1 et des fils de trame 2. Le tissu est recouvert d'un revêtement protecteur 4 tel que défini dans ce qui précède arrêtant le rayonnement ultra-violet, quel que soit son "point d'impact", par exemple sur un fil de chaíne 1 ou un fil de trame 2, ou dans l'espace subsistant entre les entrecroisements des fils.The textile of the invention, as shown diagrammatically in the Figures 3 and 4, for example comprises warp threads 1 and weft threads 2. The fabric is covered with a protective coating 4 as defined in what precedes stopping ultraviolet radiation, whatever its "point of impact", for example on a warp 1 or a weft 2, or in space remaining between the intertwining of the wires.

    On donne ci-après des exemples de réalisation de l'invention.Examples of the invention are given below.

    EXEMPLE IEXAMPLE I

    Un support textile constitué de fibres de polyester, comportant 47 fils de chaíne d'un titrage unitaire de 23 dtex et 50 fils de trame d'un titrage unitaire de 167 dtex et d'un poids au mètre carré de 70-75 g est alimenté vers un dispositif d'enduction comportant un système de raclage en l'air.A textile support made of polyester fibers, comprising 47 threads of chain of a unit titration of 23 dtex and 50 weft threads of a unit titration of 167 dtex and a weight per square meter of 70-75 g is fed to a coating device comprising an air scraping system.

    Une dispersion aqueuse d'une composition acrylique, d'une viscosité de 35 000 mN.s/m2 et de pH 7,5, contenant :

  • 100 parties en poids d'une dispersion acrylate d'éthyle - acrylate de butyle - méthacrylate de méthyle à 45 % d'extrait sec ;
  • 7 parties en poids d'une résine mélanine hexaméthylolée ;
  • 5 parties en poids d'un épaississant acrylique acide ; et
  • 0,5 partie en poids d'ammoniaque à 30 %, est utilisée comme couche protectrice .
    • An aqueous dispersion of an acrylic composition, with a viscosity of 35,000 mN.s / m 2 and pH 7.5, containing:
  • 100 parts by weight of an ethyl acrylate - butyl acrylate - methyl methacrylate dispersion with 45% dry extract;
  • 7 parts by weight of a hexamethylolated melanin resin;
  • 5 parts by weight of an acid acrylic thickener; and
  • 0.5 part by weight of 30% ammonia is used as a protective layer.

    • A cette dispersion sont ajoutés 10% en poids d'un produit filtrant les rayons ultra-violets à base de benzotriazole et commercialisé sous la dénomination SOLARTEX CUT (marque déposée) par la société CIBA-GEIGY (France). Le produit filtrant est ajouté à la dispersion acrylique par simple mélange sous agitation, à température ambiante.To this dispersion are added 10% by weight of a product filtering the benzotriazole-based ultraviolet rays sold under the name SOLARTEX CUT (registered trademark) by the company CIBA-GEIGY (France). The filter product is added to the acrylic dispersion by simple mixture with stirring, at room temperature.

    Le mélange dispersion acrylique-produit filtrant est ensuite déposé sur la surface du textile, avec un grammage de 15 g/m2.The acrylic dispersion-filter product mixture is then deposited on the surface of the textile, with a grammage of 15 g / m 2 .

    Le textile enduit est ensuite séché dans un four tunnel (rame Brückner) à sept compartiments, à une température étagée variant entre 100°C et 150°C.The coated textile is then dried in a tunnel oven (ream Brückner) with seven compartments, at a stepped temperature varying between 100 ° C and 150 ° C.

    Le textile enduit est ensuite mis en contact avec un cylindre de calandrage chauffé à une température de 100°C et à une pression de 40 kg/cm, à une vitesse de 20 m par min.The coated textile is then brought into contact with a cylinder of calendering heated to a temperature of 100 ° C. and to a pressure of 40 kg / cm, at a speed of 20 m per min.

    La polymérisation de la couche d'enduction est réalisée par passage du textile enduit dans un four tunnel (rame Brückner) à sept compartiments, chauffé à une température de 180°C, à une vitesse de 15 m/min.The polymerization of the coating layer is carried out by passing textile coated in a tunnel oven (Brückner train) with seven compartments, heated to a temperature of 180 ° C, at a speed of 15 m / min.

    Ainsi qu'il apparaít sur la figure 5, le textile obtenu montre un indice de filtration supérieur à 50. La filtration des rayonnements ultra-violets entre 250 et 370 nm est supérieure à 95 %.As it appears in Figure 5, the textile obtained shows an index filtration greater than 50. Filtration of ultra-violet radiation between 250 and 370 nm is greater than 95%.

    EXEMPLE 2.EXAMPLE 2.

    Un support 100 % coton blanchi comportant 20 fils de chaíne d'un titrage unitaire de 34 dtex et 20 fils de trame d'un titrage unitaire de 34 dtex, d'un poids au mètre carré de 115 g est alimenté vers un dispositif d'enduction comportant un système de raclage en l'air.A 100% bleached cotton support comprising 20 threads of a unit titration of 34 dtex and 20 weft threads of a unit titration of 34 dtex, weighing 115 g per square meter is fed to a coating device having an air scraping system.

    Une formulation aqueuse d'une viscosité de 35 000 mN.s/m2 et de pH 7,5 contenant :

  • 100 parties en poids d'une dispersion acrylate d'éthyle - acrylate de butyle - méthacrylate de méthyle à 45 % d'extrait sec ;
  • 7 parties en poids d'une résine mélanine hexaméthylolée ;
  • 5 parties en poids d'un épaississant acrylique acide ; et
  • 0,5 partie en poids d'ammoniaque à 30 % est utilisée.
    • An aqueous formulation with a viscosity of 35,000 mN.s / m 2 and a pH 7.5 containing:
  • 100 parts by weight of an ethyl acrylate - butyl acrylate - methyl methacrylate dispersion with 45% dry extract;
  • 7 parts by weight of a hexamethylolated melanin resin;
  • 5 parts by weight of an acid acrylic thickener; and
  • 0.5 part by weight of 30% ammonia is used.

    • A cette dispersion aqueuse sont ajoutés 5 % en poids d'un produit filtrant les rayons ultra-violets à base de benzotriazole, commercialisé sous la dénomination SOLARTEX UVP (marque déposée) par la société CIBA-GEIGY (France) et 10% d'oxyde de titane ultra-fin commercialisé sous la dénomination P25S par la société DEGUSSA (France), de la même façon que dans l'exemple 1 ci-dessus.To this aqueous dispersion are added 5% by weight of a product filtering ultraviolet rays based on benzotriazole, marketed under the name SOLARTEX UVP (registered trademark) by the company CIBA-GEIGY (France) and 10% ultra-fine titanium oxide sold under the name P25S by DEGUSSA (France), in the same way as in the example 1 above.

    La formulation obtenue est déposée avec un grammage de 20 g/m2.The formulation obtained is deposited with a grammage of 20 g / m 2 .

    Le textile enduit est ensuite séché dans un four tunnel (rame Brückner) à six compartiments, à une température étagée comprise entre 100°C et 160°C.The coated textile is then dried in a tunnel oven (ream Brückner) with six compartments, at a stepped temperature of between 100 ° C and 160 ° C.

    Le textile enduit est ensuite mis en contact avec un cylindre de calandrage chauffé à une température de 100°C et à une pression de 40 kg/cm, à une vitesse de 25 m par min.The coated textile is then brought into contact with a cylinder of calendering heated to a temperature of 100 ° C. and to a pressure of 40 kg / cm, at a speed of 25 m per min.

    La polymérisation de la couche protection est effectuée par passage du textile enduit dans un four tunnel (rame Brückner) à sept compartiments, chauffé à une température de 180°C, à une vitesse de 15 m/min.The polymerization of the protective layer is carried out by passing textile coated in a tunnel oven (Brückner train) with seven compartments, heated to a temperature of 180 ° C, at a speed of 15 m / min.

    Le textile enduit obtenu présente un indice de filtration supérieur à 93 % entre 250 nm et 370 nm. The coated textile obtained has a filtration index greater than 93 % between 250 nm and 370 nm.

    La filtration des UVA est également améliorée.UVA filtration is also improved.

    EXEMPLE 3EXAMPLE 3

    Le support textile de l'exemple 1 ci-dessus est enduit, à l'aide d'un dispositif d'enduction comportant un système de raclage en l'air, avec la dispersion acrylique de l'exemple 1 dans laquelle le produit filtrant SOLARTEX CUT (marque déposée) est remplacé par 5 % en poids d'un produit filtrant à base de benzophénone (produit commercialisé sous la dénomination LOWILITE 20 (marque déposée) par la société GREAT LAKES (Suisse)) et 1 % en poids d'un colorant jaune commercialisé sous la dénomination MINERPRINT RN (marque déposée) par la société MINERVA (Italie).The textile support of example 1 above is coated, using a coating device comprising a scraping system in the air, with the acrylic dispersion of Example 1 in which the SOLARTEX filtering product CUT (registered trademark) is replaced by 5% by weight of a filtering product at benzophenone base (product marketed under the name LOWILITE 20 (registered trademark) by GREAT LAKES (Switzerland)) and 1% by weight of a yellow dye marketed under the name MINERPRINT RN (registered trademark) by the company MINERVA (Italy).

    Le mélange est réalisé de la même façon que dans les exemples précédents.The mixing is carried out in the same way as in the examples previous.

    La dispersion aqueuse est déposée sur le support textile avec un grammage de 15 g/m··.The aqueous dispersion is deposited on the textile support with a grammage of 15 g / m ·· .

    Le textile enduit subit une étape de séchage, de calandrage et de polymérisation de la couche protectrice de la même façon que dans l'exemple 1 ci-dessus.The coated textile undergoes a drying, calendering and polymerization of the protective layer in the same way as in Example 1 above.

    Le produit obtenu montre un indice de filtration supérieur à 50 et une amélioration de la filtration du rayonnement ultra-violet jusqu'à 470 nm.The product obtained shows a filtration index greater than 50 and a improved filtration of ultraviolet radiation up to 470 nm.

    Claims (42)

    Textile du type comprenant un tissu tricoté, tissé et/ou non-tissé obtenu à partir de fibres naturelles, synthétiques et/ou artificielles, comportant sur au moins l'une de ses faces un revêtement formé d'une ou plusieurs couches protectrices d'enduction, d'une porosité à la vapeur pratiquement nulle et déposées avec un grammage variant entre environ 10 et environ 70 g/m2, le revêtement comprenant un ou plusieurs composés filtrant les rayons ultra-violets.Textile of the type comprising a knitted, woven and / or non-woven fabric obtained from natural, synthetic and / or artificial fibers, comprising on at least one of its faces a coating formed by one or more protective layers of coating, of practically zero vapor porosity and deposited with a grammage varying between approximately 10 and approximately 70 g / m 2 , the coating comprising one or more compounds filtering ultraviolet rays. Textile selon la revendication 1, caractérisé en ce que les composés filtrant les rayons ultra-violet sont dispersés dans l'épaisseur du revêtement.Textile according to claim 1, characterized in that the compounds filtering the ultraviolet rays are dispersed in the thickness of the coating. Textile selon la revendication 1 ou 2, caractérisé en ce que les composés filtrant les rayons ultra-violets comprennent notamment les molécules organiques, les pigments minéraux et les colorants.Textile according to claim 1 or 2, characterized in that the compounds filtering ultraviolet rays include molecules in particular organic, mineral pigments and dyes. Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les benzotriazoles, notamment les composés de formule ci-après :
    Figure 00200001
    Figure 00210001
    Figure 00210002
       ainsi que les dérivés ou mélanges de ces produits.    Textile according to claim 3, characterized in that the organic molecules comprise the benzotriazoles, in particular the compounds of formula below:
    Figure 00200001
    Figure 00210001
    Figure 00210002
    as well as the derivatives or mixtures of these products.         Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les triazines, notamment les triazines substituées par des phénols, ainsi que les dérivés ou mélanges de ces produits.Textile according to claim 3, characterized in that the organic molecules include triazines, especially triazines substituted by phenols, as well as derivatives or mixtures of these products. Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les benzophénones, notamment les composés de formule ci-après :
    Figure 00220001
       dans laquelle R1 représente un groupe alkyle en C1-C15, notamment un groupe méthyle, butyle, actyle, un groupe amyle, un groupe dodécyloxy, un groupe hydroxy, R2 représente un atome d'hydrogène, un groupe alkyle en C1-C15, notamment un groupe butyle, octyle, R3 représente un atome d'hydrogène, un atome d'halogène, notamment un atome de chlore, R4 représente un atome d'hydrogène, un groupe -S03H,    ainsi que les dérivés ou mélanges de ces produits.    Textile according to claim 3, characterized in that the organic molecules comprise the benzophenones, in particular the compounds of formula below:
    Figure 00220001
    in which R1 represents a C 1 -C 15 alkyl group, in particular a methyl, butyl, actyl group, an amyl group, a dodecyloxy group, a hydroxy group, R2 represents a hydrogen atom, a C 1 -C 15 alkyl group, in particular a butyl, octyl group, R3 represents a hydrogen atom, a halogen atom, in particular a chlorine atom, R4 represents a hydrogen atom, a group -S0 3 H, as well as the derivatives or mixtures of these products.         Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les tétraméthylpipéridines, notamment les composés de formule ci-après :
    Figure 00220002
       les composés comportant le motif ci-après :
    Figure 00230001
    Figure 00230002
    Figure 00230003
       les composés comportant les motifs ci-après :
    Figure 00240001
    Figure 00240002
       ainsi que les dérivés ou mélanges de ces produits.    Textile according to claim 3, characterized in that the organic molecules comprise tetramethylpiperidines, in particular the compounds of formula below:
    Figure 00220002
    the compounds comprising the following motif:
    Figure 00230001
    Figure 00230002
    Figure 00230003
    the compounds comprising the following units:
    Figure 00240001
    Figure 00240002
    as well as the derivatives or mixtures of these products.         Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les benzoates, notamment les composés de formule ci-après :
    Figure 00240003
    Figure 00250001
       ainsi que les dérivés ou mélanges de ces produits.    Textile according to claim 3, characterized in that the organic molecules comprise benzoates, in particular the compounds of formula below:
    Figure 00240003
    Figure 00250001
    as well as the derivatives or mixtures of these products.         Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les acrylonitriles substituées, les oxanilides, les cinnamates, les malonates, ainsi que les dérivés ou mélanges de ces produits.Textile according to claim 3, characterized in that the organic molecules include substituted acrylonitriles, oxanilides, cinnamates, malonates, as well as derivatives or mixtures of these products. Textile selon la revendication 3, caractérisé en ce que les molécules organiques comprennent les complexes de nickel, notamment les composés de formule ci-après :
    Figure 00250002
    Figure 00250003
       ainsi que les dérivés ou mélanges de ces produits.    Textile according to claim 3, characterized in that the organic molecules comprise the nickel complexes, in particular the compounds of formula below:
    Figure 00250002
    Figure 00250003
    as well as the derivatives or mixtures of these products.         Textile selon la revendication 3, caractérisé en ce que les pigments minéraux comprennent le dioxyde de titane, le dioxyde de titane ultra-fin, les oxydes de fer.Textile according to claim 3, characterized in that the mineral pigments include titanium dioxide, ultra-fine titanium dioxide, iron oxides. Textile selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il comprend un composé filtrant les rayons ultra-violets.Textile according to any one of Claims 1 to 11, characterized in that it comprises a compound filtering ultraviolet rays. Textile selon l'une des revendications 1 à 11, caractérisé en ce qu'il comprend un mélange de composés filtrant les rayons ultra-violets.Textile according to one of Claims 1 to 11, characterized in that that it includes a mixture of compounds filtering ultraviolet rays. Textile selon l'une quelconque des revendications 1 à 13, caractérisé en ce qu'il comprend, exprimé en pourcentage en poids par rapport au poids du revêtement, de 1 à 10 % de composé filtrant les rayons ultra-violets.Textile according to any one of Claims 1 to 13, characterized in that it comprises, expressed as a percentage by weight relative to the weight of the coating, from 1 to 10% of compound filtering ultraviolet rays. Textile selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le revêtement comprend au moins une couche protectrice réalisée à partir d'un matériau polymérique ou d'un mélange de matériaux polymériques.Textile according to any one of Claims 1 to 14, characterized in that the coating comprises at least one protective layer made from a polymeric material or a mixture of materials polymeric. Textile selon la revendication 15, caractérisé en ce que les matériaux polymériques comprennent les polymères ou copolymères à base de polyuréthanne, acrylique et/ou polyvinylique.Textile according to claim 15, characterized in that the polymeric materials include polymers or copolymers based on polyurethane, acrylic and / or polyvinyl. Textile selon la revendication 16, caractérisé en ce que les polymères ou copolymères à base de polyuréthanne comprennent notamment les polyisocyanates, les polyéthers de polyols, les polyesters de polyols. Textile according to claim 16, characterized in that the polyurethane-based polymers or copolymers include in particular polyisocyanates, polyether polyols, polyesters of polyols. Textile selon la revendications 16, caractérisé en ce que les polymères ou copolymères à base acrylique comprennent les dérivés d'acrylonitrile, les dérivés d'acrylamide, les dérivés d'ester acrylique, notamment le méthacrylamide, les méthacrylates d'alkyle inférieur, notamment de méthyle, éthyle, propyle, butyle, pentyle.Textile according to claims 16, characterized in that the acrylic-based polymers or copolymers include derivatives acrylonitrile, acrylamide derivatives, acrylic ester derivatives, in particular methacrylamide, lower alkyl methacrylates, in particular methyl, ethyl, propyl, butyl, pentyl. Textile selon la revendication 16, caractérisé en ce que les polymères ou copolymères à base polyvinylique comprennent les acétals polyvinyliques, notamment l'acétal polyvinylique, le butyral polyvinylique.Textile according to claim 16, characterized in that the polyvinyl based polymers or copolymers include acetals polyvinyl, in particular polyvinyl acetal, polyvinyl butyral. Textile selon l'une quelconque des revendications 1 à 19, caractérisé en ce que le revêtement comprend au moins un composant à effet non collant, notamment un produit à base de paraffine, de silice, de silicone, d'un agent de surface ou un mélange de ces produits.Textile according to any one of Claims 1 to 19, characterized in that the coating comprises at least one effect component non-sticky, in particular a product based on paraffin, silica, silicone, a surfactant or a mixture of these products. Textile selon l'une quelconque des revendications 1 à 20, caractérisé en ce que le revêtement comprend au moins un agent de réticulation, notamment une résine à base de mélamine, un isocyanate bloqué ou non, une aziridine, ou un mélange de ces produits.Textile according to any one of Claims 1 to 20, characterized in that the coating comprises at least one agent for crosslinking, in particular a melamine-based resin, a blocked isocyanate or not, an aziridine, or a mixture of these products. Textile selon l'une quelconque des revendications 1 à 21, caractérisé en ce que le revêtement est formé de plusieurs couches de matériau polymérique.Textile according to any one of claims 1 to 21, characterized in that the covering consists of several layers of polymeric material. Textile selon la revendication 22, caractérisé en ce que chaque couche contient au moins un composé filtrant les rayons ultra-violets.Textile according to claim 22, characterized in that each layer contains at least one compound filtering ultraviolet rays. Textile selon la revendication 22, caractérisé en ce que l'une ou quelques-unes des couches comprend au moins un composé filtrant les rayons ultra-violets.Textile according to claim 22, characterized in that one or some of the layers include at least one ray filtering compound ultra-violet. Textile selon l'une quelconque des revendications 1 à 24, caractérisé en ce que le revêtement est formé de deux couches de matériau polymérique. Textile according to any one of claims 1 to 24, characterized in that the covering is formed from two layers of material polymeric. Textile selon l'une quelconque des revendications 1 à 25, caractérisé en ce qu'il comprend un ou plusieurs composés pigmentaires utilisés en complément de filtration pour éliminer une partie du spectre de la lumière visible.Textile according to any one of claims 1 to 25, characterized in that it comprises one or more pigmentary compounds used in addition to filtration to eliminate part of the spectrum of visible light. Textile selon la revendication 26, caractérisé en ce que les composés pigmentaires comprennent les pigments d'aluminium ou organiques.Textile according to claim 26, characterized in that the pigment compounds include aluminum or organic pigments. Textile selon la revendication 26 ou 27, caractérisé en ce que les composés pigmentaires sont présents dans chacune des couches du revêtement.Textile according to claim 26 or 27, characterized in that the pigment compounds are present in each of the layers of the coating. Textile selon la revendication 26 ou 27, caractérisé en ce que les composés pigmentaires sont présents dans une ou quelques-unes des couches du revêtement.Textile according to claim 26 or 27, characterized in that the pigment compounds are present in one or some of the layers of the coating. Textile selon l'une quelconque des revendications 1 à 29, caractérisé en ce que le tissu est réalisé à partir de fibres de lin, coton, de fibre de verre, de viscose, de polyester, de polyamide, ainsi que les mélanges de ces produits.Textile according to any one of claims 1 to 29, characterized in that the fabric is made from linen fibers, cotton, fiber glass, viscose, polyester, polyamide, and mixtures of these products. Textile selon la revendication 30, caractérisé en ce qu'il est imprimé.Textile according to claim 30, characterized in that it is printed. Procédé de préparation d'un textile selon l'une quelconque des revendications 1 à 31, caractérisé en ce qu'il comprend l'étape consistant à déposer un revêtement formé d'une ou plusieurs couches protectrices, le revêtement comprenant un ou plusieurs composés filtrant les rayons ultra-violets, sur au moins une face d'un tissu.Process for the preparation of a textile according to any one of claims 1 to 31, characterized in that it comprises the step consisting in deposit a coating formed by one or more protective layers, the coating comprising one or more compounds filtering ultraviolet rays, on at least one side of a fabric. Procédé selon la revendication 32, caractérisé en ce que le dépôt du revêtement est réalisé par enduction directe ou par transfert. Method according to claim 32, characterized in that the deposition of the coating is produced by direct coating or by transfer. Procédé selon la revendication 32 ou 33, caractérisé en ce que deux couches protectrices sont déposées.Method according to claim 32 or 33, characterized in that two protective layers are deposited. Procédé selon la revendication 34, caractérisé en ce que la première couche interne est déposée avec un grammage plus important que la seconde couche externe.Method according to claim 34, characterized in that the first internal layer is deposited with a heavier grammage than the second outer layer. Procédé selon l'une quelconque des revendications 32 à 35, caractérisé en ce que le textile enduit est séché après le dépôt de la ou des couches protectrices, à une température, de préférence étagée, variant entre 90°C et 150°C.Process according to any one of Claims 32 to 35, characterized in that the coated textile is dried after the deposition of the protective layers, at a temperature, preferably stepped, varying between 90 ° C and 150 ° C. Procédé selon l'une quelconque des revendications 32 à 36, caractérisé en ce que le textile enduit et séché est soumis à une étape de calandrage, à une pression comprise entre 8,5 kg/cm et 400 kg/cm, et à une température comprise entre 80°C et 200°C.Process according to any one of Claims 32 to 36, characterized in that the coated and dried textile is subjected to a step of calendering, at a pressure between 8.5 kg / cm and 400 kg / cm, and at a temperature between 80 ° C and 200 ° C. Procédé selon l'une quelconque des revendications 32 à 37, caractérisé en ce que le textile est soumis, après l'étape de calandrage, à une étape de polymérisation, pour chauffage à une température comprise entre 150°C et 200°C.Process according to any one of Claims 32 to 37, characterized in that the textile is subjected, after the calendering step, to a polymerization step, for heating to a temperature between 150 ° C and 200 ° C. Procédé selon l'une quelconque des revendications 32 à 38, caractérisé en ce qu'il comprend l'étape consistant à imprimer dans l'épaisseur du revêtement un motif décoratif.Process according to any one of Claims 32 to 38, characterized in that it comprises the step of printing in the thickness of the covering a decorative pattern. Utilisation d'un textile selon l'une quelconque des revendications 1 à 31, pour la protection des meubles, objets d'art, matériaux et/ou personnes susceptibles de subir un rayon ultra-violet.Use of a textile according to any one of the claims 1 to 31, for the protection of furniture, works of art, materials and / or people likely to undergo an ultraviolet ray. Utilisation d'un textile selon la revendication 40, pour la réalisation de rideau, store, notamment store à lamelles, store enrouleur, paravent, parasol, ombrelle, auvent, enveloppe de protection telle que sac, sachet ou produits similaires, couverture ou toile de protection. Use of a textile according to claim 40 for the production curtain, blind, in particular slat blind, roller blind, screen, parasol, parasol, awning, protective cover such as bag, sachet or similar products, cover or protective fabric. Elément de rideau ou de store destiné à être placé à proximité d'une ouverture, telle que fenêtre, porte-fenêtre ou similaires, en vue de protéger du rayonnement ultra-violet les meubles, objets d'art, matériaux et/ou personnes, caractérisé en ce qu'il comprend au moins un textile selon l'une quelconque des revendications 1 à 31.Curtain or blind element intended to be placed near an opening, such as a window, French window or the like, for the purpose of protect furniture, works of art, materials and / or from ultraviolet radiation people, characterized in that it comprises at least one textile according to one any of claims 1 to 31.
    EP19980402696 1997-10-31 1998-10-29 UV- filtering textile support, process for its manufacture and its uses Expired - Lifetime EP0913518B1 (en)

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    FR9713716A FR2770542B1 (en) 1997-10-31 1997-10-31 TEXTILE SUPPORT FILTERING ULTRA-PURPLE RAYS, PREPARATION METHOD THEREOF, USES THEREOF
    FR9713716 1997-10-31

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    US11168414B2 (en) 2013-08-15 2021-11-09 Arun Agarwal Selective abrading of a surface of a woven textile fabric with proliferated thread count based on simultaneous insertion within a single pick insertion event of a loom apparatus multiple adjacent parallel yarns drawn from a multi-pick yarn package
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    US11225733B2 (en) 2018-08-31 2022-01-18 Arun Agarwal Proliferated thread count of a woven textile by simultaneous insertion within a single pick insertion event of a loom apparatus multiple adjacent parallel yarns drawn from a multi-pick yarn package
    CN111957108A (en) * 2020-08-30 2020-11-20 宁波耀众模塑科技有限公司 Formula of polyurethane foaming product with good air filtering effect

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    ES2267172T3 (en) 2007-03-01
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    DE69834889D1 (en) 2006-07-27
    FR2770542B1 (en) 2001-03-23

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