FR2877876A1 - Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix - Google Patents
Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix Download PDFInfo
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- FR2877876A1 FR2877876A1 FR0412187A FR0412187A FR2877876A1 FR 2877876 A1 FR2877876 A1 FR 2877876A1 FR 0412187 A FR0412187 A FR 0412187A FR 0412187 A FR0412187 A FR 0412187A FR 2877876 A1 FR2877876 A1 FR 2877876A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/58—Cuttability
- B32B2307/581—Resistant to cut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2405/00—Adhesive articles, e.g. adhesive tapes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/01—Surface features
- D10B2403/012—Alike front and back faces
- D10B2403/0122—Smooth surfaces, e.g. laminated or coated
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/18—Outdoor fabrics, e.g. tents, tarpaulins
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Description
2877876 12877876 1
La présente invention a pour objet: - un composite d'un type nouveau, présentant une structure souple; - un procédé pour la préparation dudit composite; ainsi que - l'utilisation dudit composite comme moyen de renfort et/ou moyen de sécurisation de surfaces, en d'autres termes un procédé de renfort et/ou sécurisation de surfaces basé sur l'intervention dudit composite. The subject of the present invention is: a composite of a new type having a flexible structure; a process for the preparation of said composite; and - the use of said composite as reinforcing means and / or securing means of surfaces, in other words a reinforcing process and / or securing surfaces based on the intervention of said composite.
Le composite, principal objet de la présente invention, a été développé pour apporter une solution satisfaisante, plus satisfaisante que celles existantes à ce jour, au problème du vol des marchandises lors de leur transport dans des camions ou wagons de train. Ledit composite a plus particulièrement été développé dans un contexte de mise au point de systèmes anti-effraction, anti-lacération pour bâches, notamment de camions. A la lecture de ce qui suit, on réalisera que ses débouchés ne sont pas limitées audit contexte. The composite, main object of the present invention, has been developed to provide a satisfactory solution, more satisfactory than those existing to date, the problem of theft of goods during their transport in trucks or train cars. Said composite has been developed more particularly in the context of the development of anti-burglary systems, anti-laceration for tarpaulins, including trucks. On reading the following, it will be realized that its outlets are not limited to said context.
De nombreux véhicules routiers présentent en lieu et place de parois rigides (parois métalliques ou panneaux composites) des bâches, généralement en toile polyester. Ces bâches constituent des parois souples, légères, aisées à manipuler lors des chargements et déchargements mis en oeuvre de chaque côté du véhicule. Ces bâches présentent toutefois un inconvénient majeur: elles sont fracturables, déchirables à l'aide d'outils de type couteau, cutter, pince coupante... Many road vehicles have instead of rigid walls (metal walls or composite panels) tarpaulins, usually polyester canvas. These sheets are flexible walls, light, easy to handle during loading and unloading implemented on each side of the vehicle. These tarpaulins, however, have a major disadvantage: they are fracturable, tearing with the help of tools like knife, cutter, cutting pliers ...
Dans un tel contexte, on a proposé des bâches à structures complexes renforcées, telles celles décrites dans les demandes de brevet FR 2 657 894, 2 736 880, 2 821 630 et 2 840 569 et, selon un autre concept, des systèmes de protection anti-vol à solidariser à des bâches en toile, préexistantes. On a notamment proposé des composites à base de fils d'acier avec ondulations, noyés dans du PVC à solidariser auxdites bâches. Les fils d'acier sont liés et maintenus espacés, entre eux, par des fils plus fins de sorte que la structure métallique en cause est une structure tissée, dont la souplesse se développe principalement selon une seule et unique direction: longitudinale (celle des ondulations). De tels composites, à ce jour sur le marché, pèsent plus de 2 kg au m2. In such a context, tarpaulins with reinforced complex structures have been proposed, such as those described in patent applications FR 2 657 894, 2 736 880, 2 821 630 and 2 840 569 and, according to another concept, protective systems. anti-theft to attach to canvas tarpaulins, pre-existing. In particular, composites based on steel wires with corrugations, embedded in PVC to be secured to said tarpaulins have been proposed. The steel wires are bound and kept spaced from each other by thinner wires so that the metal structure in question is a woven structure, the flexibility of which develops mainly in one and only direction: longitudinal (that of the undulations ). Such composites, so far on the market, weigh more than 2 kg per m2.
Le composite de l'invention relève du même concept. Il constitue toutefois un perfectionnement au composite de l'art antérieur 2877876 2 évoqué ci-dessus. Il est notamment plus souple, dans toutes les directions, et plus léger. The composite of the invention is of the same concept. However, it is an improvement to the composite of the prior art 2877876 2 mentioned above. It is notably more flexible, in all directions, and lighter.
Le composite de l'invention présente, de façon caractéristique, une structure souple, comportant deux faces principales et une faible épaisseur, et comprenant essentiellement une armature tricotée déformable, avantageusement métallique, enrobée dans une matrice souple thermofusible. The composite of the invention typically has a flexible structure, having two main faces and a small thickness, and essentially comprising a deformable knitted reinforcement, advantageously metallic, embedded in a flexible hot melt matrix.
Le composite de l'invention est souple dans toutes ses dimensions: en longueur, en largeur et en travers; en d'autres termes, il est souple selon sa longueur, selon sa largeur (plus généralement selon ses deux dimensions principales qui peuvent être égales si l'on considère un carré dudit composite) et selon ses diagonales. The composite of the invention is flexible in all its dimensions: in length, in width and across; in other words, it is flexible according to its length, according to its width (more generally according to its two main dimensions which can be equal if one considers a square of said composite) and according to its diagonals.
Cette souplesse multi-directionnelle repose sur sa structure originale, sur l'intervention d'une armature déformable dans toutes les directions (un tricot déformable dans toutes les directions, avantageusement un tricot métallique déformable dans toutes les directions) au sein d'une matrice souple. Le qualificatif "déformable" utilisé pour caractériser l'armature tricotée signifie dans la présente description et les revendications annexées déformable dans toutes les directions. This multi-directional flexibility is based on its original structure, the intervention of a deformable reinforcement in all directions (a knit deformable in all directions, preferably a metal knit deformable in all directions) within a flexible matrix . The term "deformable" used to characterize the knitted reinforcement means in the present description and the appended claims deformable in all directions.
Le tricot (armature tricotée) déformable est enrobé dans une matrice souple thermofusible. Il, et plus particulièrement ses extrémités, est stabilisé dans ladite matrice. Cette matrice souple contribue à la souplesse de l'ensemble de la structure. Elle est thermofusible. Cette caractéristique est essentielle pour la préparation du composite. Elle est aussi avantageuse en ce qu'elle autorise la réparation ("l'autoréparation") dudit composite endommagé. Cette matrice souple thermofusible intervient en quantité suffisante pour enrober l'armature tricotée déformable, avantageusement en quantité suffisante pour permettre des réparations. Elle intervient en quantité limitée, en référence à l'épaisseur du composite, dans la mesure où il y a nul besoin de la faire intervenir en quantité excessive, en référence à la souplesse, au prix de revient et au poids du composite. The deformable knit (knit reinforcement) is embedded in a flexible hot-melt matrix. It, and more particularly its ends, is stabilized in said matrix. This flexible matrix contributes to the flexibility of the whole structure. It is hot melt. This characteristic is essential for the preparation of the composite. It is also advantageous in that it allows repair ("self-healing") of said damaged composite. This flexible hot-melt matrix is used in sufficient quantity to coat the deformable knitted reinforcement, advantageously in an amount sufficient to allow repairs. It intervenes in limited quantity, with reference to the thickness of the composite, insofar as there is no need to involve it in excessive quantity, with reference to the flexibility, the cost price and the weight of the composite.
Ledit composite qui présente deux faces principales et une faible épaisseur se présente généralement sous la forme de nappes. Il 35 peut être conditionné en rouleaux. Said composite which has two main faces and a small thickness is generally in the form of webs. It can be packaged in rolls.
2877876 3 Pour son utilisation, développée ci-après, à titre de moyen de renfort et/ou de sécurisation de surfaces, il doit être fixé, solidarisé auxdites surfaces. A cette fin, on peut faire appel à tout moyen de fixation, de solidarisation adéquat. IDe tels moyens peuvent être indépendants de la structure du composite ou, selon une variante avantageuse, prévus dans ladite structure. For its use, developed below, as a means of reinforcement and / or securing surfaces, it must be fixed, secured to said surfaces. To this end, it is possible to use any means of attachment, of adequate fastening. Such means may be independent of the structure of the composite or, according to an advantageous variant, provided in said structure.
Ainsi, selon ladite variante avantageuse, la structure souple du composite de l'invention comprend outre le tricot déformable et la matrice souple thermofusible, des moyens de solidarisation dudit composite à des surfaces. De tels moyens peuvent notamment comprendre un adhésif. Un tel adhésif est avantageusement disposé de manière uniforme sur l'une des faces principales du composite. Pour faciliter la manipulation dudit composite, on neutralise avantageusement ledit adhésif en prévoyant une pellicule pelable de protection de celui-ci, sur la face du composite où il intervient. On se débarrasse de ladite pellicule lors de la mise en oeuvre de la solidarisation du composite à la surface concernée, solidarisation basée sur l'intervention de l'adhésif. Thus, according to said advantageous variant, the flexible structure of the composite of the invention comprises, in addition to the deformable knit and the flexible hot-melt matrix, means for securing said composite to surfaces. Such means may in particular comprise an adhesive. Such an adhesive is advantageously arranged uniformly on one of the main faces of the composite. To facilitate the handling of said composite, it advantageously neutralizes said adhesive by providing a peelable protective film thereof, on the face of the composite where it occurs. This film is removed during the implementation of the bonding of the composite to the surface concerned, bonding based on the intervention of the adhesive.
Un tel adhésif intervient avantageusement sur un support. Ainsi, selon un mode de réalisation préféré, le composite de l'invention présente une structure souple qui comprend, outre le tricot déformable enrobé dans la matrice souple thermofusible, sur l'une de ses faces principales, un support imprégné d'adhésif, par exemple un support textile tel un nontissé, imprégné d'adhésif, avantageusement protégé par une pellicule pelable. Le support imprégné ne doit évidemment pas nuire de façon significative à la souplesse de l'ensemble du composite. Such an adhesive intervenes advantageously on a support. Thus, according to a preferred embodiment, the composite of the invention has a flexible structure which comprises, in addition to the deformable knit embedded in the flexible hot-melt matrix, on one of its main faces, a support impregnated with adhesive, for example for example a textile support such as a nonwoven, impregnated with adhesive, preferably protected by a peelable film. The impregnated support must obviously not significantly affect the flexibility of the entire composite.
De manière générale, on note que les moyens de solidarisation en cause, par exemple l'adhésif, ont une nature adaptée à l'usage prévu du composite dans la structure duquel ils interviennent. Ledit adhésif, du type colle, est ainsi avantageusement prévu pour résister à des températures allant par exemple de -30 C à +70 C... In general, it is noted that the securing means in question, for example the adhesive, have a nature adapted to the intended use of the composite in whose structure they intervene. Said adhesive, of the glue type, is thus advantageously designed to withstand temperatures ranging for example from -30 ° C. to + 70 ° C.
On se propose de préciser ci-après, de façon nullement limitative, la nature des principaux élérnents constitutifs du composite de l'invention. It is proposed to specify hereinafter, in no way limiting, the nature of the main constituent elements of the composite of the invention.
On a parlé de la faible épaisseur de la structure dudit 35 composite. On peut indiquer ici qu'elle est généralement comprise entre 0,5 et 2 mm. Elle est avantageusement d'environ 1 mm. The thinness of the structure of said composite has been discussed. It can be indicated here that it is generally between 0.5 and 2 mm. It is advantageously about 1 mm.
2877876 4 Pour ce qui concerne la matrice souple thermofusible, elle est avantageusement à base de polychlorure de vinyle (PVC). Ce matériau offre un compromis propriétés/coût: de revient particulièrement intéressant. D'autres matériaux, tel le Kevlar (qui présente toutefois l'inconvénient d'être un matériau cher), sont tout à fait susceptibles de convenir. As regards the flexible hot-melt matrix, it is advantageously based on polyvinyl chloride (PVC). This material offers a compromise properties / cost: returns particularly interesting. Other materials, such as Kevlar (which however has the disadvantage of being an expensive material), are quite likely to agree.
Pour ce qui concerne l'armature tricotée déformable, elle est avantageusement métallique, i.e. à base de fils métalliques. Le métal en cause est très généralement l'acier. Ce métal offre un intéressant compromis propriétés (et notamment résistance à la coupure à des diamètres raisonnables)/coût de revient. Les fils d'acier intervenants sont avantageusement protégés de la corrosion. L'armature tricotée déformable est donc très avantageusement à base de fils d'acier galvanisé ou de fils d'acier inoxydable. Il n'est pas exclu d'utiliser un autre métal, tel le tungstène, plus particulièrement dans des contextes où le critère de résistance au froid n'est pas critique. As regards the deformable knitted reinforcement, it is advantageously metallic, i.e. based on metal son. The metal in question is very generally steel. This metal offers an interesting compromise properties (including cut resistance to reasonable diameters) / cost. The intervening steel wires are advantageously protected from corrosion. The deformable knitted reinforcement is therefore very advantageously based on galvanized steel wire or stainless steel wire. It is not excluded to use another metal, such as tungsten, especially in contexts where the criterion of cold resistance is not critical.
L'utilisation d'autres types de matériau - autre qu'un métal - n'est pas exclue. Les matériaux en cause doivent être susceptibles de générer une structure résistante tricotée déformable. Les composites de l'invention peuvent ainsi renfermer une armature tricotée à base de fibres de carbone, de fibres de Kevlar ou d'un mélange de telles fibres. Une telle armature, sans nul doute performante, est toutefois d'un coût de revient certain. L'utilisation de fibres de verre pourrait également être envisageable dans des contextes où le critère de résistance au froid n'est pas critique... The use of other types of material - other than metal - is not excluded. The materials in question must be capable of generating a deformable knitted resistant structure. The composites of the invention can thus contain a knitted reinforcement based on carbon fibers, Kevlar fibers or a mixture of such fibers. Such a frame, no doubt powerful, however, is a cost price. The use of glass fibers may also be possible in contexts where the criterion of cold resistance is not critical ...
L'armature tricotée déformable - avantageusement le tricot métallique déformable - présente dans la structure du composite de l'invention est avantageusement optimisée pour assurer au mieux sa fonction de barrière de protection tout en alliant souplesse et légèreté maximale. Dans un tel contexte d'optimisation: - les fils, avantageusement métalliques, intervenants, ont un diamètre ni trop fins, ni trop gros, avantageusement un diamètre compris entre 0,24 et 0,55 mm, très avantageusement un diamètre compris entre 0,26 et 0,45 mm; - le tricot, avantageusement métallique, présente des mailles, des ouvertures, avantageusement d'un diamètre équivalent compris entre 2877876 5 3 et 10 mm, très avantageusement d'un diamètre équivalent d'environ 5 mm; - ledit tricot, avantageusement métallique, est avantageusement un tricot en point de jersey; - ledit tricot, avantageusement métallique, présente avantageusement un grammage compris entre 300 et 800 g/m2, très avantageusement un grammage compris entre 400 et 600 g/m2. The deformable knitted reinforcement - advantageously the deformable metallic knit - present in the structure of the composite of the invention is advantageously optimized to best ensure its protective barrier function while combining flexibility and maximum lightness. In such an optimization context: the son, advantageously metallic, intervening, have a diameter neither too fine nor too large, advantageously a diameter of between 0.24 and 0.55 mm, very advantageously a diameter of between 0, 26 and 0.45 mm; the knit, advantageously metallic knit, has meshes, openings, advantageously of an equivalent diameter of between 2877876 and 10 mm, very advantageously with an equivalent diameter of approximately 5 mm; said knit, advantageously metallic, is advantageously a knit jersey stitch; - Said knit, advantageously metallic, advantageously has a basis weight between 300 and 800 g / m2, very advantageously a weight of between 400 and 600 g / m2.
La structure souple du composite de l'invention comprend avantageusement un tricot de fils d'acier déformable enrobé dans une matrice de polychlorure de vinyle. Ledit tricot présente très avantageusement les caractéristiques énoncées ci-dessus dans le cadre de l'optimisation. The flexible structure of the composite of the invention advantageously comprises a knit of deformable steel son embedded in a polyvinyl chloride matrix. Said knit has very advantageously the characteristics stated above in the context of optimization.
Selon son deuxième objet, la présente invention concerne un procédé de préparation d'un composite, tel que décrit ci-dessus (composite qui constitue le premier objet de ladite invention). Ledit procédé comprend la préparation d'un tricot déformable, avantageusement métallique, suivi de l'enrobage dudit tricot dans une matrice souple thermofusible. Plus précisément, il comprend: - la préparation d'un tricot déformable, avantageusement métallique; - le maintien dudit tricot entre deux feuilles d'un matériau souple thermofusible; - le traitement thermique de l'ensemble ainsi constitué à une température suffisante pour assurer la fusion desdites feuilles et ainsi la génération de la matrice attendue enrobant ledit tricot. According to its second object, the present invention relates to a method for preparing a composite, as described above (composite which constitutes the first object of said invention). Said method comprises the preparation of a deformable knit, advantageously metallic, followed by the coating of said knit in a flexible hot-melt matrix. More specifically, it comprises: the preparation of a deformable knit, advantageously metallic; - maintaining said knit between two sheets of a flexible thermofusible material; the heat treatment of the assembly thus formed at a temperature sufficient to ensure the melting of said sheets and thus the generation of the expected matrix coating said knit.
Le tricot, avantageusement métallique, est préparé de façon connue per se, à partir de fils adéquats (ni trop fins, ni trop gros). The knit, advantageously metallic, is prepared in a known manner per se, from adequate threads (neither too fine nor too big).
Il intervient alors des feuilles du matériau souple thermofusible. De telles feuilles vont générer la matrice de faible épaisseur attendue par fusion. Il ne saurait être totalement exclu de faire intervenir des feuilles en des matériaux de nature différente; de tels matériaux étant évidemment compatibles. It then intervenes sheets of the flexible thermofusible material. Such sheets will generate the thin matrix expected by fusion. It can not be totally excluded to use sheets of materials of different kinds; such materials are obviously compatible.
Le procédé de l'invention, tel que décrit ci-dessus, peut comprendre en outre la fixation, au composite obtenu, de moyens de solidarisation à des surfaces. Une telle fixation est mise en oeuvre sur l'une des faces principales dudit composite obtenu. The method of the invention, as described above, may further comprise fixing, to the composite obtained, fastening means to surfaces. Such fixing is implemented on one of the main faces of said composite obtained.
2877876 6 Il peut s'agir de la fixation d'un adhésif, avantageusement suivie d'une étape de protection dudit adhésif fixé par dépôt sur celuici d'une pellicule pelable. It can be the fixing of an adhesive, advantageously followed by a step of protecting said adhesive fixed by depositing on it a peelable film.
Il s'agit avantageusement de la fixation, à l'une des faces principales de la matrice, d'un support, par exemple d'un support textile, tel un nontissé, imprégné d'adhésif. Ledit support imprégné est avantageusement utilisé conditionné entre deux pellicules pelables. Il est débarrassé de l'une desdites pellicules pour sa fixation sur le composite de l'invention. Il est ultérieurement débarrassé de l'autre desdites pellicules pour la fixation dudit composite à une surface. It is advantageously the attachment, to one of the main faces of the matrix, a support, for example a textile support, such a nonwoven, impregnated with adhesive. Said impregnated support is advantageously used conditioned between two peelable films. It is rid of one of said films for its attachment to the composite of the invention. It is subsequently freed from the other of said films for fixing said composite to a surface.
Selon son troisième objet, la présente invention concerne l'utilisation des composites tels que décrits ci-dessus et/ou tels que préparés selon le procédé décrit ci-dessus. According to its third object, the present invention relates to the use of the composites as described above and / or as prepared according to the method described above.
Selon son troisième objet, la présente invention concerne un procédé de sécurisation et/ou de renfort de surfaces qui comprend la solidarisation auxdites surfaces d'un composite tel que décrit ci-dessus et/ou tel que préparé ci-dessus. According to its third object, the present invention relates to a method of securing and / or reinforcing surfaces which comprises the joining to said surfaces of a composite as described above and / or as prepared above.
Les surfaces en cause, qui peuvent être de diverses natures, se trouvent ainsi consolidées et protégées des agressions extérieures et intérieures. The surfaces in question, which can be of various kinds, are thus consolidated and protected from external and internal aggressions.
La solidarisation du composite auxdites surfaces peut mettre en oeuvre des moyens externes, indépendants de la structure du composite. Avantageusement, on a vu toutefois que la structure des composites de l'invention renferme de tels moyens de solidarisation, notamment du type adhésif. Qu'un tel adhésif intervienne, à titre de moyens de solidarisation inclus ou non dans la structure du composite, ladite solidarisation se fait par pose dudit composite sur la surface et application d'une pression adéquate. On peut ainsi appliquer une pression mécanique ou hydraulique...Il est nullement exclu d'utiliser d'autres moyens de solidarisation. The joining of the composite to said surfaces may use external means, independent of the structure of the composite. Advantageously, however, it has been seen that the structure of the composites of the invention contains such securing means, in particular of the adhesive type. That such an adhesive intervenes, as securing means included or not in the composite structure, said joining is done by laying said composite on the surface and application of adequate pressure. It is thus possible to apply a mechanical or hydraulic pressure ... It is by no means excluded to use other securing means.
On a indiqué que les surfaces à protéger avec les composites de l'invention peuvent être de diverses natures. Il peut notamment s'agir de bâches, par exemple de bâches de camion, de wagons, de chantiers... de toiles de tentes (par exemple de tentes de stockage, de tentes pressurisées...), de toiles de bacs ou citernes ou bassins de rétention, de murs, sols ou plafonds. Cette liste est nullement exhaustive. Les surfaces 2877876 7 en cause, équipées du composite de l'invention, se trouvent renforcées et notamment protégées du perçage par des objets métalliques. It has been stated that the surfaces to be protected with the composites of the invention can be of various kinds. It may in particular be tarpaulins, for example truck tarpaulins, wagons, construction sites ... tarpaulins (for example storage tents, pressurized tents, etc.), tarpaulins of tanks or tanks or retention basins, walls, floors or ceilings. This list is by no means exhaustive. The surfaces 2877876 7 in question, equipped with the composite of the invention, are reinforced and in particular protected from drilling by metal objects.
Dans le cadre du procédé de l'invention, le composite est avantageusement solidarisé aux faces internes des bâches ou toiles. On a parlé ci-dessus d'une possibilité de protection vis-à-vis des agressions extérieures et intérieures. Ainsi, dans un contexte de bâches de camion ou de wagon, le composite, solidarisé à la face interne desdites bâches, protège ladite face interne des usures prématurées dues aux changements, participe au maintien des chargements et protège lesdits chargements des agressions extérieures.... In the context of the process of the invention, the composite is advantageously secured to the inner faces of the sheets or sheets. We spoke above of a possibility of protection vis-à-vis external and internal aggression. Thus, in a context of truck tarpaulins or wagon, the composite, secured to the inner face of said tarpaulins, protects said inner face from premature wear due to changes, helps maintain loads and protects said loads from external aggression ... .
L'homme du métier a compris tout l'intérêt de la présente invention. Celui-ci ressort également à la considération des figures annexées. Those skilled in the art have understood the whole point of the present invention. This is also apparent from the consideration of the appended figures.
Sur la figure 1, on a montré en perspective, un composite de l'art antérieur, solidarisé à une surface à protéger et/ou à renforcer. In Figure 1, it has been shown in perspective, a composite of the prior art, secured to a surface to protect and / or strengthen.
Sur les figures 2A et 3, on a schématisé l'élaboration d'un composite de l'invention. In Figures 2A and 3, there is schematised the development of a composite of the invention.
La figure 2B est un agrandissement d'une zone de la figure 2A. La figure 4 schématise l'utilisation d'un composite de l'invention, c'est-à-dire sa solidarisation à une surface à protéger et/ou à renforcer. Figure 2B is an enlargement of an area of Figure 2A. FIG. 4 schematizes the use of a composite of the invention, that is to say its attachment to a surface to be protected and / or reinforced.
Le composite de l'art antérieur 1 est à base d'un tissé métallique 2 qui comprend des fils d'acier ondulés 2' liés entre eux et maintenus espacés les uns des autres par des fils d'acier beaucoup plus fins 2". Ledit tissé métallique 2 est enrobé dans une matrice 3 de PVC. On conçoit aisément qu'un tel composite 1 n'est susceptible de développer de souplesse que principalement selon sa longueur. The prior art composite 1 is based on a metal weave 2 which comprises corrugated steel wires 2 'bonded together and kept spaced from each other by much finer steel wires 2 ". metallic woven fabric 2 is embedded in a PVC matrix 3. It is easy to imagine that such a composite 1 is likely to develop flexibility only mainly along its length.
Ledit composite 1 a été solidarisé au dos de la surface 4. Said composite 1 has been secured to the back of the surface 4.
On décrit maintenant un composite de l'invention 10, sa préparation et son utilisation en référence aux figures 2A, 2B, 3 et 4. A composite of the invention 10, its preparation and its use is now described with reference to FIGS. 2A, 2B, 3 and 4.
Ledit composite 10 est obtenu à partir du tricot métallique déformable 12 (lui-même obtenu à partir de fils métalliques 12') qui présente des ouvertures 12" et de deux feuilles de PVC 19 (sous l'effet de la chaleur, lesdites feuilles 19 fondent et génèrent la matrice 13). Sur l'une des faces principales dudit tricot 10, on colle un non-tissé imprégné d'adhésif 15, par sa face collante 15' non protégée. Son autre face 15" est 2877876 8 protégée par la pellicule pelable 16. On conçoit que ledit non-tissé 15 était initialement conditionné entre deux pellicules pelables du même type. Le composite 10, comportant sur l'une de ses faces principales le non-tissé imprégné 15 protégé par la pellicule 16 peut être conditionné en rouleaux. Said composite 10 is obtained from the deformable metallic knit 12 (itself obtained from metal threads 12 ') which has openings 12 "and two sheets of PVC 19 (under the effect of heat, said sheets 19 On one of the main faces of said knit 10, a nonwoven impregnated with adhesive 15 is adhered to by its non-protected adhesive face 15 ', and its other face 15' is protected by the peelable film 16. It is conceivable that said nonwoven 15 was initially conditioned between two peelable films of the same type. The composite 10 having on one of its main faces the impregnated nonwoven 15 protected by the film 16 may be packaged in rolls.
Pour son utilisation, il est débarrassé de ladite pellicule 16 et présenté, face 15" du non-tissé imprégné d'adhésif, au regard de la surface 14 sur laquelle il va être fixé. For its use, it is freed of said film 16 and presented, face 15 "of the nonwoven impregnated with adhesive, with respect to the surface 14 on which it will be fixed.
Les surfaces 4 de la figure 1 et 14 de la figure 4 peuvent notamment consister en des bâches de polyester. The surfaces 4 of FIG. 1 and 14 of FIG. 4 may especially consist of polyester sheets.
On se propose enfin d'illustrer l'invention par l'exemple ci-après. Un composite de l'invention a été obtenu, qui présente les caractéristiques suivantes: - épaisseur: 1 mm - matrice de PVC - tricot métallique déformable d'un grammage de 480 g/m2, avec des ouvertures d'un diamètre équivalent de 5 mm, réalisé à partir de fils d'acier de 0,30 mm de diamètre, en point de jersey, tel que schématisé sur les figures 2A à 4 poids: 1,6 1,7 kg/m2. Finally, it is proposed to illustrate the invention by the example below. A composite of the invention has been obtained, which has the following characteristics: - thickness: 1 mm - PVC matrix - deformable metal knit with a grammage of 480 g / m2, with openings with an equivalent diameter of 5 mm made from 0.30 mm diameter steel yarn, in stocking stitch, as shown diagrammatically in FIGS. 2A to 4 weight: 1.6 1.7 kg / m 2.
Un tel composite est particulièrement performant pour sécuriser des bâches de camion. Such a composite is particularly effective for securing truck tarpaulins.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR0412187A FR2877876A1 (en) | 2004-11-17 | 2004-11-17 | Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR0412187A FR2877876A1 (en) | 2004-11-17 | 2004-11-17 | Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix |
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FR2877876A1 true FR2877876A1 (en) | 2006-05-19 |
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FR0412187A Pending FR2877876A1 (en) | 2004-11-17 | 2004-11-17 | Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix |
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FR (1) | FR2877876A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1880888A1 (en) * | 2006-07-18 | 2008-01-23 | F.A.I.R. International | Secure flexible tarpaulin-type wall, in particular for vehicle body |
EP2308707A1 (en) | 2009-10-12 | 2011-04-13 | Schmitz Cargobull AG | Tarpaulin for structure of truck trailer and structure for a truck trailer |
EP2644760A1 (en) * | 2012-03-29 | 2013-10-02 | Fabricacion Asientos Vehiculos Industriales, S.A. | Anti-vandalism fabric suitable for upholstering seats |
GB2555178A (en) * | 2016-07-26 | 2018-04-25 | Stewart Ramsey John | Cut resistant material |
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GB2317363A (en) * | 1996-09-20 | 1998-03-25 | C M I | Forming a cut resistant material |
US20030008137A1 (en) * | 2001-06-06 | 2003-01-09 | Nicolai Bohm | Self-adhesive protective article for painted automobile parts subject to high mechanical stress |
WO2003035785A1 (en) * | 2001-09-24 | 2003-05-01 | Milliken & Company | Composite tape construction and method of manufacture |
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2004
- 2004-11-17 FR FR0412187A patent/FR2877876A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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GB2317363A (en) * | 1996-09-20 | 1998-03-25 | C M I | Forming a cut resistant material |
US20030008137A1 (en) * | 2001-06-06 | 2003-01-09 | Nicolai Bohm | Self-adhesive protective article for painted automobile parts subject to high mechanical stress |
WO2003035785A1 (en) * | 2001-09-24 | 2003-05-01 | Milliken & Company | Composite tape construction and method of manufacture |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1880888A1 (en) * | 2006-07-18 | 2008-01-23 | F.A.I.R. International | Secure flexible tarpaulin-type wall, in particular for vehicle body |
FR2903935A1 (en) * | 2006-07-18 | 2008-01-25 | F A I R Internat Sarl | SECURE FLEXIBLE SECURED WALL, IN PARTICULAR FOR VEHICLE BODYWORK |
EP2308707A1 (en) | 2009-10-12 | 2011-04-13 | Schmitz Cargobull AG | Tarpaulin for structure of truck trailer and structure for a truck trailer |
WO2011045136A1 (en) | 2009-10-12 | 2011-04-21 | Schmitz Cargobull Ag | Tarpaulin for a truck structure, and structure for a truck |
EP2644760A1 (en) * | 2012-03-29 | 2013-10-02 | Fabricacion Asientos Vehiculos Industriales, S.A. | Anti-vandalism fabric suitable for upholstering seats |
US8778818B2 (en) | 2012-03-29 | 2014-07-15 | Fabricacion Asientos Vehiculos Industriales, S.A. | Anti-vandalism fabric suitable for upholstering seats |
GB2555178A (en) * | 2016-07-26 | 2018-04-25 | Stewart Ramsey John | Cut resistant material |
GB2555178B (en) * | 2016-07-26 | 2023-08-02 | Stewart Ramsey John | Cut resistant material |
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