WO2008110727A2 - Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus - Google Patents
Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus Download PDFInfo
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- WO2008110727A2 WO2008110727A2 PCT/FR2008/050238 FR2008050238W WO2008110727A2 WO 2008110727 A2 WO2008110727 A2 WO 2008110727A2 FR 2008050238 W FR2008050238 W FR 2008050238W WO 2008110727 A2 WO2008110727 A2 WO 2008110727A2
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- fibers
- binder
- web
- reinforcement
- natural
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
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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
- B32B5/26—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 another layer next to it also being fibrous or filamentary
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/645—Impregnation followed by a solidification process
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
- D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/12—Glass fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/02—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of natural origin
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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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0013—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using multilayer webs
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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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
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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
- D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
- E04D12/002—Sheets of flexible material, e.g. roofing tile underlay
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/02—Roof covering by making use of flexible material, e.g. supplied in roll form of materials impregnated with sealing substances, e.g. roofing felt
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/689—Hydroentangled nonwoven fabric
Definitions
- the present invention relates to the field of waterproofing, including real estate and civil engineering, and in particular the products in the form of prefabricated flexible coatings of the membrane membrane type and their manufacturing process.
- the invention more particularly relates to a method of manufacturing a reinforcement for a waterproofing membrane, the reinforcement obtained by this method, a method of manufacturing a waterproofing membrane comprising a reinforcement of the aforementioned type and the membrane obtained by this method.
- waterproofing membranes generally of the bituminous type, occupy a predominant place in the sealing of flat roof supports, such as, for example, flat roofs, or the upper parts of structures or constructions.
- the reinforcements are intended to confer the structural durability and the different mechanical characteristics necessary for the waterproofing membranes; tensile strength, tearing, punching ...
- these reinforcements are used, during the manufacture of the membrane, coating support bitumen applied hot (about 180 ° C.).
- another fundamental element to take into account is the strength and temperature stability of these reinforcements, as well as the tear resistance and the substantial absence of shrinkage.
- two major families of reinforcements can be highlighted at present, namely, reinforcements with regular structure such as grids, fabrics or fabrics (glass or polyester) and random structure reinforcements such as nonwovens (glass fleece, nonwoven polyester).
- polyester organic material from petrochemicals
- glass raw material easily recyclable but heavy energy consumer (melting at 1600 ° C or so).
- the present invention proposes a method of manufacturing a nonwoven web (random and non-oriented distribution of the fibers) intended to be used as a reinforcement or reinforcement in a flexible waterproofing membrane, characterized in that is to provide natural fibers of plant origin, optionally mixed with the thermoplastic or thermofusible minority fibers, to form a web or nonwoven web (e) by mechanical, pneumatic or hydraulic coating, to then submit said veil to two successive consolidation operations comprising a needling operation and a bonding operation by chemical binder or by heat treatment, preferably under pressure and, finally, to subject the fibers of the consolidated nonwoven web to a hydrophobation treatment.
- the invention also relates to a web and a membrane respectively obtained by means of one and the other of the processes mentioned above.
- the lay density is set such that the basis weight or basis weight of the resulting web is between 50 and 400 g / m 2 , advantageously between 80 and 300 g / m 2 , preferably of the order of about 150 g / m 2 .
- the consolidation operations are performed to reduce the thickness of the sheet so that its thickness at rest, in the absence of stress, is less than 2 mm, preferably of the order of 1 mm.
- the manufacturing parameters of the web are adjusted to obtain a resulting web having a sufficient porosity to allow its impregnation by the sealing binder in good conditions and with sufficient grip.
- the average pore diameter of the resulting web may be of the order of 100 microns or 200 microns. Nevertheless, pore diameters smaller than these values are also acceptable.
- the process consists, to entirely or predominantly form the nonwoven web, in providing natural fibers in the form of vegetable fibers, treated or untreated, selected from the group consisting of flax fibers, of cotton , jute, hemp, bamboo, kenaf, sisal, and mixtures of two or more of the aforementioned different fibers (mixtures of at least two such fibers).
- the vegetable fibers, treated or not are mainly constituted of flax fibers, in the form of flax tows and / or refined flax fibers.
- the term here is meant at least 50% by weight of the resulting web, preferably of the order of 75% by weight or more.
- the method consists in providing natural fibers in the form of fibers of synthetic material (s) of vegetable origin, chosen from the group formed by the viscose fibers, the synthetic fibers derived from cellulose (for example of the LYOCELL type (registered name) of LENZING) and the possible mixtures of these fibers.
- synthetic material for example of the LYOCELL type (registered name) of LENZING
- the needling operation consists of needle punching. liquid jets under pressure or hydrolysis, possibly preceded by a mechanical needling.
- the hydrophobic nature of the natural fibers can be obtained by various known hydrophobation processes, as long as they preserve the mechanical characteristics of the fibers and the porous nature (average porosity) of the reinforcement, do not substantially increase the mass of the fiber. frame and do not adversely influence the adhesion of the sealing binder to said plant or natural fibers.
- the basic principle implemented for this purpose by the invention to prevent the degradation and rotting of the fibers consists in producing an individual coating of these fibers by a hydrophobic agent.
- the hydrophobation treatment also improving the adhesion properties of the sealing binder, consists in grafting fatty acid chlorides. on the natural fiber structures of the nonwoven web, by a chemical grafting operation by chromatogeny, preferably after consolidation.
- the amount of grafted fatty acid chlorides represents less than 1% by weight of the mass of the natural fibers, advantageously less than 0.5% by weight, preferably between 0.2 and
- grafted fatty acid chlorides are selected from group formed by palmitic acid chlorides and stearic acid chlorides.
- the abovementioned grafting operation may, for example, be derived from that described in European Patent No. 1,007,202 and in US Pat. No. 6,342,268, the contents of which are incorporated herein by reference.
- Figure 2 of the accompanying drawing schematically illustrates an installation for performing the aforementioned grafting operation on a consolidated web.
- the fatty acid chloride is deposited by standard printing techniques at a rate of about 5 g / m 2 .
- the passage on the heating cylinder vaporizes the acid chloride which is grafted (it is in gaseous phase) on the hydroxyl functions (OH) of the natural fibers.
- the binder referred to during the chemical bonding operation of the plant fibers, is a chemical binding agent of plant origin, for example a binder chosen from the group formed. by binders based on gluten or starch, in particular corn.
- such a binder can also be chosen from the ester of rosin (polymer of abietic acid - resin in aqueous dispersion), soybean glue (of protein nature), the casein (of protein nature - dry matter in aqueous phase) and the natural rubber latex (polyisoprene + proteins - in aqueous phase).
- the process may consist of bonding or consolidation by heat treatment under pressure, for example by hot calendering, the nonwoven web being constituted by a substantially homogeneous mixture of natural fibers (with a melting point greater than 250 0 C) and hot melt fibers of organic origin, melting point preferably between 200 0 C and 250 0 C, the weight percentage of said hot melt fibers in the mixture being less than 20%, preferably of the order of about 10%.
- the method may also consist in associating with the nonwoven web of natural fibers an additional reinforcement structure, by integrating it into said web, when the batting or during consolidation, or by bringing it back to one of the faces of the latter, said reinforcement being also capable of being coated or impregnated with sealing binder, said additional reinforcing structure being advantageously chosen from the formed group by glass grids, polyester grids and grids of a natural material, for example based on vegetable fibers, such as linen, cotton or the like.
- Such reinforcing structures are for example described in documents FR-A-2 792 951, EP-AI 226 299 and EP-A-0 285 533, although not associated with a sheet of natural fibers of vegetable origin.
- it may be provided to subject the natural fibers, before topping or after obtaining the consolidated nonwoven web, to additional treatment by spraying or impregnation, with agents capable of modifying at least some of their mechanical, chemical and / or or physical, in particular by increasing their resistance to fire and rotting, their anti-root and anti-fungal properties and their hydrophobic character.
- - anticryptogamic emulsion biocide
- hydrophobic: fluorinated derivatives in emulsions hydrophobic: fluorinated derivatives in emulsions.
- the present invention also relates to a nonwoven web capable of constituting a reinforcing reinforcement for a flexible waterproofing membrane, characterized in that it consists of a nonwoven web 2 based on natural fibers, preferably of vegetable origin. produced by mechanical, pneumatic or hydraulic layering and having at least undergone a needling operation, a chemical or thermal bonding operation and a hydrophobation treatment of its fibers.
- This sheet is preferably obtained by the method of manufacture of the sheet described above and the various characteristics and possibilities mentioned above in terms of surface density, types of natural fibers used to make the sheet, of nature of added binding agent and types of additional reinforcing structure (possibly integrated with the web) apply to the nonwoven web also object of the invention.
- Such a sheet preferably obtained via the manufacturing method mentioned above, is formed of fibers made hydrophobic because of the presence of fatty acid chloride grafted on their structure, resulting from chemical grafting by chromatogenesis ( treatment preferentially carried out after formation of the sheet and consolidation of the latter).
- These grafted fatty acid chlorides are present with a weight content of less than 1% by weight of the natural fibers, advantageously less than 0.5% by weight, preferably between 0.2% and 0.3% by weight, and are preferentially selected from the group consisting of palmitic acid chlorides and stearic acid chlorides.
- the natural fibers constituting the web may have undergone at least one additional treatment as mentioned above.
- Such a treatment may in particular aim to release the plant fibers of at least some of their easily degradable organic components while preserving the long-lived components and without substantially affecting the mechanical characteristics of said fibers.
- the present invention also relates to a method of manufacturing a flexible waterproofing membrane, characterized in that it consists in manufacturing a nonwoven web by implementing the method as described above, then to coat or to print this web with a sealing binder on a line of coating, impregnation or calendering adapted.
- the waterproofing membrane will preferably be produced from prefabricated sheets produced during a first production phase, depending on the demand.
- the applied sealing binder may consist of either a bituminous binder, optionally based on bitumen modified with polymers (for example SBS bitumen, polyurethane modified bitumen or analog), or a vegetable binder, for example based on modified vegetable oil (s).
- FIG. 1 illustrates, by way of nonlimiting example, such a membrane 1 in the form of a partial sectional view, this membrane 1 being characterized in that the reinforcement 2 consists of a nonwoven web or sheet. based on natural fibers 2 ', preferably of plant origin, having at least undergone a needling operation, a chemical or thermal bonding operation and a hydrophobation treatment, before its coating or impregnation with the binder 4.
- the reinforcing ply 2 is obtained by the manufacturing method described above and the sealing membrane 1 produced according to the manufacturing method mentioned above.
- sealing binder 4 may consist of a bituminous or vegetable binder as described above and the sheet 2 may optionally incorporate an additional reinforcing grid 3.
- the manufacture of a membrane according to the invention is generally carried out in two successive steps, namely, a first step of producing the nonwoven web forming a reinforcement and a subsequent step of producing the membrane itself.
- Example 1 The following raw materials are selected:
- ROBAEYS fiber length 80/100 mm
- - TENCEL 1.7 dtex from LENZING Company (38 mm fiber length).
- a 75/25 [linen tow - Tencel] blend is made: 100 g / m 2 .
- Hydrolage is carried out (two injection nozzles working at a pressure of about 150 bar).
- Chemical bonding is carried out with a latex SBR type. Drying is carried out in an oven at 160 ° C. The web is then coated via a cylinder with
- the reinforcement in the form of a sheet has a final weight of 220 g / m 2 (quality control: capillary rise test with methylene blue ⁇ 5 mm).
- a blend of flax tow quality E2 from the company VAN ROBEYS and copolyester fibers with a melting point at 240 ° C. is made.
- the weight mixture is 25% of copolyester fibers and 75% of flax tow ( Total weight 200 g / m).
- the sheet is then treated in a drying oven at 160 0 C and finally goes into a heating calender at 250 0 C and 7 bar pressure, to consolidate the sheet thermally and reduce its thickness to 0.8 mm.
- Trays 2 and 3 Binder coating on the underside of the reinforcement, with an SBS bitumen binder with mineral fillers (12% SBS / bitumen + SBS - 30% fillers).
- a surface finish is made with slate flakes and the underside is covered with a thermally fusible film 6 ⁇ m.
- the final thickness of the membrane is about 3.0 mm.
- the invention is not limited to the embodiments described. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/527,089 US20100015425A1 (en) | 2007-02-14 | 2008-02-13 | Method for making a reinforcement frame and sealing membrane including such frame, and products thus obtained |
EP08762086A EP2115199A2 (fr) | 2007-02-14 | 2008-02-13 | Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus |
CA 2678167 CA2678167A1 (fr) | 2007-02-14 | 2008-02-13 | Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0753247 | 2007-02-14 | ||
FR0753247A FR2912427B1 (fr) | 2007-02-14 | 2007-02-14 | Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008110727A2 true WO2008110727A2 (fr) | 2008-09-18 |
WO2008110727A3 WO2008110727A3 (fr) | 2008-11-27 |
Family
ID=38420675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2008/050238 WO2008110727A2 (fr) | 2007-02-14 | 2008-02-13 | Procede de fabrication d'une armature de renfort et d'une membrane d'etancheite comprenant une telle armature et produits obtenus |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100015425A1 (fr) |
EP (1) | EP2115199A2 (fr) |
CA (1) | CA2678167A1 (fr) |
FR (1) | FR2912427B1 (fr) |
WO (1) | WO2008110727A2 (fr) |
Cited By (5)
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CN102154785A (zh) * | 2011-04-01 | 2011-08-17 | 福建建州竹业科技开发有限公司 | 利用竹原纤维制成的抗菌卫生材料及其制造工艺和应用 |
CN103088693A (zh) * | 2013-02-05 | 2013-05-08 | 宁波市奇兴无纺布有限公司 | 一种竹纤纸及其制作方法 |
FR3010654A1 (fr) * | 2013-09-19 | 2015-03-20 | Ahlstroem Oy | Support pour ecran de sous toiture ou pare-pluie et procede de fabrication dudit support |
WO2016020866A1 (fr) * | 2014-08-06 | 2016-02-11 | Basf Se | Procédé de revêtement en continu d'une bande de substrat fibreux à base de cellulose avec du chlorure d'acide gras |
FR3062125A1 (fr) * | 2017-01-25 | 2018-07-27 | Saint-Gobain Adfors | Membranes bitumineuses d'etancheite pour toiture |
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WO2007011750A2 (fr) * | 2005-07-15 | 2007-01-25 | Aspen Aerogels, Inc. | Composites aerogel renforces et procedes de fabrication |
US20110070423A1 (en) * | 2009-09-23 | 2011-03-24 | Chandrasiri Jayakody | Foam and Fiber Composite Structures and Methods of Manufacture |
FR2954375B1 (fr) * | 2009-12-21 | 2012-02-24 | Soprema | Membrane d'etancheite souple, notamment pour l'etancheification de surfaces planes telles que des toitures |
IT1402753B1 (it) * | 2010-11-15 | 2013-09-18 | Politex S A S Di Freudenberg Politex S R L | Supporto tessile rinforzato con filamenti longitudinali di fibre cellulosiche, particolarmente per membrane bituminose. |
FR2967363B1 (fr) * | 2010-11-16 | 2012-11-30 | Centre Nat Rech Scient | Machine et procede de traitement par greffage chromatogenique d'un substrat hydroxyle |
US11319651B2 (en) | 2012-02-20 | 2022-05-03 | Nike, Inc. | Article of footwear incorporating a knitted component with an integral knit tongue |
US8448474B1 (en) * | 2012-02-20 | 2013-05-28 | Nike, Inc. | Article of footwear incorporating a knitted component with a tongue |
JP6253238B2 (ja) * | 2012-05-28 | 2017-12-27 | 花王株式会社 | 清掃用シート及びその製造方法 |
US9282784B2 (en) * | 2012-09-06 | 2016-03-15 | Nike, Inc. | Sole structures and articles of footwear having a lightweight midsole with segmented protective elements |
CN102926094A (zh) * | 2012-11-22 | 2013-02-13 | 吴江江旭纺织有限公司 | 一种天丝竹纤维纺织面料 |
US10306946B2 (en) * | 2013-05-14 | 2019-06-04 | Nike, Inc. | Article of footwear having heel portion with knitted component |
CN104207737B (zh) * | 2014-08-13 | 2017-01-18 | 上海锵达纺织有限公司 | 一种汉麻非织造抹布及其生产工艺 |
EP3243975B1 (fr) * | 2016-05-13 | 2020-03-25 | swisspor Management AG | Bande de bitume dotée d'une protection anti-racines |
WO2019119007A1 (fr) * | 2017-12-18 | 2019-06-27 | Epi Gmbh | Matériau de construction, en particulier matériau de construction de toit |
WO2019185459A1 (fr) * | 2018-03-29 | 2019-10-03 | Sika Technology Ag | Procédé pour la production d'une membrane d'imperméabilisation bitumineuse préformée |
CN111995783A (zh) * | 2020-07-31 | 2020-11-27 | 中航复材(北京)科技有限公司 | 一种含网格加强筋结构的预浸料及制备方法 |
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US5869408A (en) * | 1995-06-07 | 1999-02-09 | Bay Mills Ltd. | Hand-tearable moisture barrier laminate |
US20040014388A1 (en) * | 1996-12-30 | 2004-01-22 | Wattex | Process for manufacturing a band-shaped non-woven product with increased tensile strength |
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US5190533A (en) * | 1992-01-06 | 1993-03-02 | Blackburn William A | Biodegradable fluid-absorbing structures |
DE4206714A1 (de) * | 1992-03-04 | 1993-09-09 | Sandoz Ag | Wachsdispersionen, deren herstellung und verwendung |
JPH09193277A (ja) * | 1996-01-16 | 1997-07-29 | Daikin Ind Ltd | 複層フェルト、それからなる部材および複層フェルトの製法 |
FR2767270B1 (fr) * | 1997-08-14 | 2000-02-11 | Daniel Gamain | Procede de traitement en phase gazeuse d'un materiau solide pour le rendre hydrophobe, materiau obtenu et applications |
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2007
- 2007-02-14 FR FR0753247A patent/FR2912427B1/fr not_active Expired - Fee Related
-
2008
- 2008-02-13 CA CA 2678167 patent/CA2678167A1/fr not_active Abandoned
- 2008-02-13 WO PCT/FR2008/050238 patent/WO2008110727A2/fr active Application Filing
- 2008-02-13 US US12/527,089 patent/US20100015425A1/en not_active Abandoned
- 2008-02-13 EP EP08762086A patent/EP2115199A2/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5869408A (en) * | 1995-06-07 | 1999-02-09 | Bay Mills Ltd. | Hand-tearable moisture barrier laminate |
US20040014388A1 (en) * | 1996-12-30 | 2004-01-22 | Wattex | Process for manufacturing a band-shaped non-woven product with increased tensile strength |
DE29720598U1 (de) * | 1997-11-20 | 1998-02-05 | Christian Heinrich Sandler GmbH & Co. KG, 95126 Schwarzenbach a d Saale | Vliesstoff aus Naturfasern und Kunstfasern |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102154785A (zh) * | 2011-04-01 | 2011-08-17 | 福建建州竹业科技开发有限公司 | 利用竹原纤维制成的抗菌卫生材料及其制造工艺和应用 |
CN103088693A (zh) * | 2013-02-05 | 2013-05-08 | 宁波市奇兴无纺布有限公司 | 一种竹纤纸及其制作方法 |
FR3010654A1 (fr) * | 2013-09-19 | 2015-03-20 | Ahlstroem Oy | Support pour ecran de sous toiture ou pare-pluie et procede de fabrication dudit support |
WO2016020866A1 (fr) * | 2014-08-06 | 2016-02-11 | Basf Se | Procédé de revêtement en continu d'une bande de substrat fibreux à base de cellulose avec du chlorure d'acide gras |
FR3062125A1 (fr) * | 2017-01-25 | 2018-07-27 | Saint-Gobain Adfors | Membranes bitumineuses d'etancheite pour toiture |
WO2018138429A1 (fr) * | 2017-01-25 | 2018-08-02 | Saint-Gobain Adfors | Membranes bitumineuses d'étanchéité pour toiture |
Also Published As
Publication number | Publication date |
---|---|
US20100015425A1 (en) | 2010-01-21 |
EP2115199A2 (fr) | 2009-11-11 |
FR2912427B1 (fr) | 2009-12-11 |
WO2008110727A3 (fr) | 2008-11-27 |
CA2678167A1 (fr) | 2008-09-18 |
FR2912427A1 (fr) | 2008-08-15 |
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