WO2004007190A1 - Geotextile - Google Patents

Geotextile Download PDF

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Publication number
WO2004007190A1
WO2004007190A1 PCT/EP2003/007652 EP0307652W WO2004007190A1 WO 2004007190 A1 WO2004007190 A1 WO 2004007190A1 EP 0307652 W EP0307652 W EP 0307652W WO 2004007190 A1 WO2004007190 A1 WO 2004007190A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
layers
geotextile
textile
different
Prior art date
Application number
PCT/EP2003/007652
Other languages
German (de)
English (en)
Other versions
WO2004007190A8 (fr
Inventor
Gerhard Thoenissen
Original Assignee
Hänsel Textil GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hänsel Textil GmbH filed Critical Hänsel Textil GmbH
Priority to AU2003250064A priority Critical patent/AU2003250064A1/en
Priority to DE10392833T priority patent/DE10392833D2/de
Publication of WO2004007190A1 publication Critical patent/WO2004007190A1/fr
Publication of WO2004007190A8 publication Critical patent/WO2004007190A8/fr

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Classifications

    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • 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
    • 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
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B5/245—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 being a foam layer
    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers
    • F41H5/0485—Layered armour containing fibre- or fabric-reinforced layers all the layers being only fibre- or fabric-reinforced layers
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/186—Knitted fabrics
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/188—Woven fabrics
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • 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
    • B32B2371/00—Polyethers, e.g. PEEK, i.e. polyether-etherketone; PEK, i.e. polyetherketone
    • 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
    • B32B2377/00—Polyamides
    • 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
    • B32B2419/00—Buildings or parts thereof

Definitions

  • the invention relates to a geotextile made from a flexible textile reinforcement composite consisting of at least two interconnected individual layers of woven and / or knitted fabrics and / or nonwovens and / or scrims for use as reinforcing, construction or protective textiles.
  • the invention also relates to a building textile, although in the following it is mostly referred to as geotextile.
  • Geotextiles are textile fabrics and exist e.g. from fabrics, nonwovens, knitwear or scrims based on raw materials such as ara id, polyamide, polyester, polyethylene, polypropylene or glass fibers. In addition to the starting materials, the type of manufacture and the structure have a significant influence on the properties of geotextiles.
  • Geotextiles should be able to permanently absorb or absorb predetermined loads and permissible movements. Special requirements to be met are e.g. Absorption of predetermined tensile forces, transmission of predetermined tensile forces, resistance to mechanical damage during installation, - predetermined permeability to water, chemical and microbial resistance and weather resistance.
  • geotextiles are used e.g. in road construction, tunnel construction, landfill construction, hydraulic engineering, building construction, railway construction, pipeline construction, for water basins, for earth support structures and ground drainage.
  • geotextiles are used for separation, filtering, reinforcement and packaging.
  • Composites are known from a large number of textile and / or non-textile individual layers which are connected to one another and which are connected to one another by local sewing.
  • the high proportion of the surface of each individual layer between the seams without connection results in a good permeability of air or liquids, but also in a split and thus lower effect against tensile and compressive stresses in the surface or perpendicular to the surface of the composite.
  • EP 0 603 633 B1 describes a flame-retardant laminate composed of at least 2 textile and one metallic layer, the connection of the individual layers to the multilayer laminate being used mechanically by needling or chemically by means of binders such as polyvinyl alcohol or butadiene styrene copolymers or by binding fibers Nonwovens are made.
  • the invention has for its object to provide a geotextile in the form of a flexible textile reinforcement composite which, compared to previously known geotextiles of this type, has the advantages of a given permeability of gases and / or liquids, higher resistance to mechanical stresses, such as tensile and compressive stresses, in terms of usage properties and shock loads and a lower rigidity or good flexibility and is easier and cheaper to manufacture.
  • the reinforcement composite should be easily adaptable to specified loads in terms of production technology.
  • the flexible textile reinforcement composite according to the invention makes it possible to meet the increasing functional requirements for high resistance, in particular against pressure and puncture stresses acting obliquely to perpendicular to the surface of the reinforcement composite, as well as tensile and shear stresses through the combination according to the invention of several textile individual layers which slide and push through small-area adhesive points are permanently connected to each other, excellent to meet. Resistance to mechanical stress is guaranteed by the small-area, sliding and separable bond points.
  • the application-related total mass per unit area of the textile individual layers is considerably reduced compared to known / by superimposing several individual layers without or with connection, for example by sewing.
  • the adhesive points 3 ensure a high resistance to displacement and separation of the individual layers 2 and thus also a high resistance of the geotextile composite against mechanical stresses, for example against pressure, puncture and shear stresses, while the local contact surfaces 4 and cavities 7 for the permeability of gases and / or liquids and for the high .
  • Softness and low bending stiffness of the composite 1 and the high load absorption capacity are responsible.
  • This optimal combination of, for example, two or more textile individual layers to form a flexible geotextile reinforcing composite is achieved by an adhesive fleece arranged between two textile individual layers, as shown schematically in FIG. 2. This for example through.
  • Foaming extruded adhesive stabilizer 5 has a cobweb-like structure made of polymeric filaments 6 and cavities 7.
  • an extruded adhesive fleece 5 it is also possible to use adhesive nets or adhesive dots applied separately to one or both surfaces of the individual layers 2 to be connected, provided that, due to their structure, these adhesives ensure approximately the same number of permeable contact surfaces 4 per cm 2 of connection surface in each connecting layer.
  • one or both of the surface sides of the geotextile reinforcement composite or within the reinforcement composite can be used in the same operation as when bonding the individual textile individual layers or in a subsequent operation.
  • non-textile functional surfaces such as metal foil, foam or the like, usually additionally used flat structures can be arranged.
  • the permeable contact surfaces 4 or cavities 7 are provided in each connecting layer between 30 pieces per cm 2 and 300 pieces per cm 2 , in particular between 100 and 200 pieces per cm 2 .
  • random and / or parallel fleeces are used as adhesive fleeces.
  • the adhesive fleeces are preferably extruded adhesive fleeces, in particular from the polymers polyamide, polyester, polyolefin or polyurethane or corresponding copolymers.
  • foamed, extruded adhesive fleeces are used.
  • the adhesive fleeces expediently have surface weights between 10 g / m 2 to 100 g / m 2 , preferably between 15 to 80 g / m 2 .
  • the flexible geotextile reinforcement composite 1 consists of three warp-knitted textile individual layers 2 with a mass per unit area of 175, 250 and 400 g / m 2 .
  • the warp knitted fabrics consist of polyester multifilament yarns.
  • This multi-layer structure is fed to a flat bed laminating machine and solidified under the following conditions to form a reinforcing composite: Temperature in the two adhesive joints: 132 ° C tape gap: 2.5 mm
  • the stamp penetration force usual for geotextiles is determined.
  • a cone-shaped metal stamp presses perpendicularly through the surface of the clamped "sample of the reinforcing composite material at a constant speed.
  • a punch penetration force of 12.45 kN was achieved.
  • a stamp penetration force of 12.75 kN was used for a non-glued construction made of the same warp knitted fabrics made of polyester with a four-layer structure consisting of the basis weights 175 g / m 2 , 200 g / m 2 , 250 g / m 2 and 400 g / m 2 measured.
  • the flexible reinforcement composite 1 consists of 24 textile individual layers 2 of the same construction.
  • the single layer consists of a fabric made of polyamide filament yarn with a mass per unit area of 60 g / m 2 .
  • a polyamide adhesive fleece 5 extruded by foaming is used for the connection, the basis weight of the adhesive fleece being varied according to the invention, starting from the surface side of the flexible reinforcing composite material 1 which was first subjected to, for example, impact or pressure, in this case as follows:
  • the thermal bonding takes place on a flat bed laminating system in several passages in order to be able to economically achieve the temperature required for melting the adhesive nonwoven intermediate layers.
  • the same puncture resistance is achieved as with a comparable laminate of 30 textile individual layers 2 made of the same polymer fabric with a basis weight of 60 g / m 2 , connected by sewing.
  • the adhesive fleece surface mass increasing with the number of individual textile layers 2 causes larger and more local adhesive joints 3 and thus a constantly increasing load absorption capacity.
  • the flexible geotextile reinforcement composite 1 consists of five textile individual layers 2. In the middle of the reinforcement composite 1, a needle-punched nonwoven is made of. Polyester fibers with a basis weight of 200 g / m 2 arranged.
  • a fabric made of polyester thermofilament yarn with a basis weight of 75 g / m 2 is arranged on the two outer surfaces of the needle-punched nonwoven fabric as the strength-bearing textile individual layer 2 .
  • a textile individual layer 2 made of needle-punched nonwoven fabric made of glass fibers with a basis weight of 160 g / m 2 is arranged on the outer surfaces of these two fabrics.
  • These two outer textile individual layers 2 made of glass fiber nonwoven guarantee good flame resistance of the flexible geotextile reinforcement composite 1.
  • the five textile individual layers 2 are Nonwovens 5 made of foamed polyester joined together, each of which has a basis weight of 40 g / m 2 .
  • the 'polyester needle-punched nonwoven with the Polyesthergeweben with an adhesive nonwoven fabric 5 with a basis weight of 40 g / m 2 and the Polyesthergewebe with the glass fiber non-woven fabrics respectively by two adhesive webs 5 each having a area- aces of 20 g / m 2, ie a total bonded nonwoven basis weight of 40 g / m 2 . 3, the local adhesive points 3a, 3b are produced, the number of adhesive points 3b formed from two layers of adhesive nonwoven having the same total mass being present. This ensures approximately the same high separation resistance in all textile individual layers 2 of the reinforcing composite 1, despite different polymers of the individual layers. On the other hand, loads, especially shock or rapid tensile loads, are absorbed differently.
  • the flexible geotextile reinforcement composite 1 consists of three textile individual layers 2 of the same construction.
  • Each individual textile layer 2 consists of a fabric made of aramid filament yarn with a mass per unit area of -200- -g / m 2 - " • - for connection" is an extruded by foaming.
  • Polyamide adhesive fleece 5 is used, the mass per unit area of the adhesive fleece in the laminate being 60 g / m 2 between the individual layers. The thermal bonding takes place on a flat bed laminating machine with the fixing conditions required by the adhesive system.
  • This laminate of three textile individual layers gives better puncture resistance than six textile individual layers made of the same material and the same construction.
  • the intermediate product consists of a pre-fixed or already laminated web and, in the thickness sequence, of a layer 8, for example of a high-strength knitted fabric made of PES (polyester), at least one adhesive nonwoven web 9, a membrane film 10, another adhesive nonwoven web 11 and another layer 12, eg from a non-woven fabric, eg from polypropylene.
  • This layer structure is at least fixed to one another in such a way that there is a manageable, installable sheet that does not fall apart, but is also not yet present as a reinforcement bond. But it can also be already covered.
  • the layers 8 and 10 and the adhesive nonwoven webs 9, 11 are made wider than the layer 12, so that there is a protrusion 13, 14 in each case.
  • the projections 13, 14 have an exposed area of the adhesive nonwoven web 11, the adhesive of which can be activated by heat and, if appropriate, also pressure.
  • a plurality of sheets of this laminate of flexible geotextile can be widened by arranging the first sheet with the layer 8 and the second sheet with the layer 12 upwards next to one another so that the overlaps 14, 14 overlap.
  • the geotextile can be finished in the desired width on the construction site by gluing the side areas to one another with the protrusions, with a membrane band 10a in between - because it is duplicated - being removed.
  • the geotextile according to the invention can thus be widened as desired.
  • laminated laminates are used as geotextiles, the layers of which are connected to one another by discrete adhesive points, discrete cavities or contact surfaces being provided in addition to the adhesive points.
  • the adhesives used are preferably somewhat elastic and / or flexible so that loads do not immediately break the adhesive. order lead.
  • Such a distribution and configuration is preferably also provided on the adhesion points that acting on an upper layer, mechanical such as' static and / or dynamic loads that this situation can not normally withstand, are transmitted over splices in part to the underlying layer, excluding that the top layer is damaged, with the layer below absorbing the load without deleteriously releasing it to the surroundings of the installed geotextile.
  • the geotextile according to the invention has a high load absorption capacity.
  • the glue points result e.g. from a point coating known per se and are accordingly adhesive points.
  • so-called adhesive nets made of adhesives, which are known per se, and which produce a network pattern of adhesive spots can also be used for bonding.
  • Adhesive nonwovens are thin, very light, flexible fabrics with high elasticity made of thermoplastic, heat-activated, dry adhesive fibers or adhesive monofilaments, which are in the form of thermally bonded, e.g. spinneret-extruded random or extruded parallel nonwovens and which are wound up, for example, wound up on a roll -
  • glue e.g. polymer-based, such as polyolefins, copolyamides, copolyethers and terpolymers.
  • the spider web-like structure has many small gaps.
  • the adhesive fleeces are used as web goods with basis weights of, for example, 10 to 100 g / m 2 . Pressure, time and activation heat are required for the bond.
  • the basis weight and the base polymer of the adhesive nonwoven can be selected.
  • several layers of adhesive fleece of the same or different F-basis weights and / or the same or different polymer base can be selected so that the load absorption capacity can be controlled by the appropriate selection.
  • the load absorption capacity of the geotextile can be specifically adjusted to the application by using adhesive fleeces of different basis weights and / or different polymer bases between several layers of the geotextile.
  • the adhesive fleece has synergistic effects. It ensures a reversibly extensible in laminate ', yielding almost elastic adhesive layer which does not impair the flexibility and suppleness of the geotextile so that a geotextile invention to a non-flat surface almost the entire surface up or can be applied and additionally also easy to handle is. In addition, this adhesive has a very low weight and therefore does not burden the geotextile.
  • an adhesive bond is created with a tangled nonwoven mesh structure in an adhesive layer area, ie from the adhesive bonding of nonwoven filaments to one another and the structural elements of the textile fabrics into which the adhesive penetrates. the. Vliesfilêtn.
  • the resulting nonwoven filament glue points surround or border the contact surfaces and / or cavities.
  • a large number of small-sized adhesive spots are formed, which are randomly or irregularly distributed and also have different dimensions.
  • the glue points essentially have the thread structure and thread length of the threads or thread portions which, during lamination or lamination, have produced the randomly distributed glue points by melting.
  • These glue points are generally of different lengths and / or, thick and / or wide, so that an irregularity is also produced in this respect. It is attributed to these irregularities that those produced with the adhesive fleeces Geotextiles guarantee a surprisingly high and superior load absorption capacity, which may result in a noticeably high and superior resistance to delamination.
  • the cavities or contact surfaces are also distributed irregularly or confusingly and have correspondingly irregular dimensions.
  • This cavity or surface contact structure also contributes decisively to the superior load absorption capacity, because this structure can buffer shock loads particularly effectively.
  • the load absorption can also be controlled via different basis weights of the textile layers and / or the type of textile.
  • fabrics and / or knitted fabrics and / or scrims and / or nonwovens are expediently used with the same or different basis weights and / or from different materials, such as aramid, used.
  • the combination of the textile layers of the geotextiles with non-textile functional surface structures is particularly simple due to the use of the adhesive fleeces.
  • This functional fabric are preferably also glued over adhesive fleeces.
  • the invention also enables the load absorption to be controlled in such a way that deliberate delamination of textile or non-textile individual layers can take place with absorption and derivation of occurring forces without the geotextile as a whole losing its predetermined functionality.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un géotextile destiné notamment à la géotechnique en contact avec le sol ou la roche ou à la technique de construction en tant que textile de construction, par exemple dans le domaine de la construction immobilière, ledit géotextile se présentant sous la forme d'un composite de renfort flexible, textile, laminé ou contrecollé qui présente au moins deux couches (2) parmi lesquelles au moins l'une correspond à une entité de surface textile. Selon l'invention, entre les couches (2) se trouvent des zones de collage (3) discrètes et, à côté des zones de collage, des surfaces de contact (4) de préférence perméables, dépourvues d'adhésif, discrètes et/ou des cavités discrètes. L'invention a également pour objet le procédé pour réaliser un géotextile et son utilisation.
PCT/EP2003/007652 2002-07-16 2003-07-15 Geotextile WO2004007190A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003250064A AU2003250064A1 (en) 2002-07-16 2003-07-15 Geotextile
DE10392833T DE10392833D2 (en) 2002-07-16 2003-07-15 Geotextilie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10232269.4 2002-07-16
DE10232269A DE10232269A1 (de) 2002-07-16 2002-07-16 Flexibler textiler Verstärkungsverbundstoff

Publications (2)

Publication Number Publication Date
WO2004007190A1 true WO2004007190A1 (fr) 2004-01-22
WO2004007190A8 WO2004007190A8 (fr) 2004-03-25

Family

ID=30010078

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2003/007651 WO2004008059A1 (fr) 2002-07-16 2003-07-15 Textile de protection contre les effets balistiques
PCT/EP2003/007652 WO2004007190A1 (fr) 2002-07-16 2003-07-15 Geotextile

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/007651 WO2004008059A1 (fr) 2002-07-16 2003-07-15 Textile de protection contre les effets balistiques

Country Status (3)

Country Link
AU (2) AU2003281066A1 (fr)
DE (3) DE10232269A1 (fr)
WO (2) WO2004008059A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016372A1 (de) * 2005-04-09 2006-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Panzerungselement und Verfahren zu seiner Herstellung
WO2009127345A1 (fr) * 2008-04-15 2009-10-22 Microdyn-Nadir Gmbh Matériau composite filtrant, son procédé de fabrication, ainsi qu'éléments filtrants plats fabriqués à partir du matériau composite filtrant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1885553A2 (fr) * 2005-05-18 2008-02-13 Composix Co. Structure balistique stratifiee
DE102005050861B4 (de) * 2005-10-24 2015-06-18 Gerlinger Industries Ag Durchstoßresistente Schuhsohle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839151A1 (de) 1977-09-12 1979-03-22 Emilio Bottini Geschossfestes, zusammengesetztes material
GB2179297A (en) * 1985-08-23 1987-03-04 Tilghman Wheelabrator Ltd Ballistic resistant material
EP0603633B1 (fr) 1992-12-15 1997-04-09 Hoechst Aktiengesellschaft Stratifié de trois composants
GB2308094A (en) * 1995-12-16 1997-06-18 T & N Technology Ltd Securing flexible sheets in a stack
EP1031656A1 (fr) * 1999-02-24 2000-08-30 Kuraray Co., Ltd. Feuille similaire au cuir poilé
DE19935408A1 (de) 1999-07-30 2001-02-08 Johns Manville Int Inc Mehrlagenschichtstoff
US20010021443A1 (en) * 2000-03-10 2001-09-13 Verseidag-Indutex Gmbh Laminate against ballistic actions
US20010041484A1 (en) * 1999-02-01 2001-11-15 Georg Schwinn Web with two outer layers and an adhesive middle layer as well as process to produce said web

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846548B2 (en) * 1999-02-19 2005-01-25 Honeywell International Inc. Flexible fabric from fibrous web and discontinuous domain matrix

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839151A1 (de) 1977-09-12 1979-03-22 Emilio Bottini Geschossfestes, zusammengesetztes material
GB2179297A (en) * 1985-08-23 1987-03-04 Tilghman Wheelabrator Ltd Ballistic resistant material
EP0603633B1 (fr) 1992-12-15 1997-04-09 Hoechst Aktiengesellschaft Stratifié de trois composants
GB2308094A (en) * 1995-12-16 1997-06-18 T & N Technology Ltd Securing flexible sheets in a stack
US20010041484A1 (en) * 1999-02-01 2001-11-15 Georg Schwinn Web with two outer layers and an adhesive middle layer as well as process to produce said web
EP1031656A1 (fr) * 1999-02-24 2000-08-30 Kuraray Co., Ltd. Feuille similaire au cuir poilé
DE19935408A1 (de) 1999-07-30 2001-02-08 Johns Manville Int Inc Mehrlagenschichtstoff
US20010021443A1 (en) * 2000-03-10 2001-09-13 Verseidag-Indutex Gmbh Laminate against ballistic actions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016372A1 (de) * 2005-04-09 2006-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Panzerungselement und Verfahren zu seiner Herstellung
DE102005016372B4 (de) * 2005-04-09 2007-03-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Panzerungselement und Verfahren zu seiner Herstellung
WO2009127345A1 (fr) * 2008-04-15 2009-10-22 Microdyn-Nadir Gmbh Matériau composite filtrant, son procédé de fabrication, ainsi qu'éléments filtrants plats fabriqués à partir du matériau composite filtrant
CN102006917A (zh) * 2008-04-15 2011-04-06 迈纳德膜技术(厦门)有限公司 过滤复合材料及其制造方法和由过滤复合材料制成的扁平过滤元件
US9630148B2 (en) 2008-04-15 2017-04-25 Microdyn-Nadir Gmbh Filter compound material, method for the production thereof and flat filter elements made of the filter compound material

Also Published As

Publication number Publication date
WO2004007190A8 (fr) 2004-03-25
AU2003250064A1 (en) 2004-02-02
AU2003250064A8 (en) 2004-02-02
DE10232269A1 (de) 2004-02-05
WO2004008059A1 (fr) 2004-01-22
DE10392835D2 (de) 2005-06-09
AU2003281066A1 (en) 2004-02-02
DE10392833D2 (en) 2005-06-09

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