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WO2003071871A1 - Support textile et procede de fabrication dudit support - Google Patents

Support textile et procede de fabrication dudit support Download PDF

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Publication number
WO2003071871A1
WO2003071871A1 PCT/EP2003/001927 EP0301927W WO03071871A1 WO 2003071871 A1 WO2003071871 A1 WO 2003071871A1 EP 0301927 W EP0301927 W EP 0301927W WO 03071871 A1 WO03071871 A1 WO 03071871A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
microcapsules
textile
layer
membrane
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2003/001927
Other languages
German (de)
English (en)
Inventor
Heinz Rembold
Christoph Geisler-Kroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terra Nostra Produkte mit Naturextrakten GmbH
Original Assignee
Terra Nostra Produkte mit Naturextrakten 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 Terra Nostra Produkte mit Naturextrakten GmbH filed Critical Terra Nostra Produkte mit Naturextrakten GmbH
Priority to AU2003210353A priority Critical patent/AU2003210353A1/en
Priority to EP03742957A priority patent/EP1478230A1/fr
Publication of WO2003071871A1 publication Critical patent/WO2003071871A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/005—Use of aromatic materials, e.g. herbs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A01N25/28—Microcapsules or nanocapsules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/007—Anti-mite, anti-allergen or anti-bacterial means
    • 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
    • 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • 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
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/12—Processes in which the treating agent is incorporated in microcapsules
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating

Definitions

  • Carrier in particular textile carrier, and method for the same
  • the invention relates to a carrier and a method for its production.
  • Microcapsules which contain a biologically active, in particular a volatile, substance are fixed on or in the carrier.
  • Volatile substances in particular essential oils, such as those used as fragrances, or pest-repellant substances, are usually applied to a carrier by spraying or soaking.
  • the volatile substance evaporates slowly and can develop its effect over a certain period of time.
  • paper strips are soaked with insecticides or at least insect repellant substances and dried. These paper strips can then be placed between items of laundry, for example to protect them from moth damage.
  • such paper strips are only suitable for a duration of action of up to a few weeks, since the active substance evaporates comparatively quickly and the insect repellent effect of the paper strip is lost.
  • a long-lasting effect is often desired.
  • WO 97/25867 describes an extract from components of the neem tree, which has a very high repellant effect against house dust mites.
  • This extract can be used to equip mattresses, which are then no longer colonized by dust mites.
  • the mattress must be sprayed with the neem extract again at regular intervals in order to maintain the repellant effect and to prevent dust mites from colonizing the mattress.
  • the surface-sprayed active ingredient contains oily constituents that spread to the fibers of the outer mattress cover and are also transferred, for example, to a sheet stretched over the mattress.
  • the superficially applied repelling active ingredient is therefore removed from the mattress in the comparatively short time of several months, mainly as a result of the frequently changed bed linen.
  • a carrier which, for example, releases fragrances over a long period of time.
  • a carrier can be used, for example, to furnish furniture or wallpaper in order to produce a pleasant smell in a closed room. It would also be advantageous to permanently protect expensive woolen clothing, such as coats, costumes or suits, from being destroyed by moths. At the same time, antimicrobial treatment would be an advantage.
  • the object of the invention is therefore to provide a carrier which is as long as possible over a longer period of time evenly releases a certain biologically active, in particular volatile, active ingredient.
  • the object is achieved with a carrier which is characterized in that microcapsules are provided on the carrier which contain a biologically active ingredient.
  • the microcapsules form a thin membrane around a tiny drop of a desired active ingredient and completely enclose it. Because of the small layer thickness of the membrane surrounding the microcapsules, the active substances enclosed in the microcapsule can diffuse through the membrane and then evaporate, so that the active substance is evenly released in small amounts over a longer period of time from the microcapsules.
  • the diffusion rate can be controlled via the layer thickness of the membrane and the material of the membrane.
  • a biologically active substance can be contained in the microcapsules as long as they can diffuse through the membrane of the microcapsule and have sufficient volatility to subsequently evaporate.
  • a biologically active substance is understood to mean a substance or a mixture of different substances which have an effect of any kind on living beings. This can be a disinfectant effect against microbes, for example. Furthermore, a repellant effect against arthropods such as insects or arachnids can also be achieved. It also includes effects on higher organisms, especially mammals including humans. Such an effect can be, for example, a calming or sleep-promoting effect. It is also particularly advantageous to include oily compounds in the microcapsules that are unsuitable for direct application to the carrier.
  • the carrier consists of fibers, for example, if it is a textile carrier, the oily compounds can creep along the fiber surface and surround the fiber with an oily film. This can change the appearance of the fiber influence the textile carrier negatively.
  • the oily compound if the oily compound is enclosed in a microcapsule, only very small amounts of the oily compound diffuse through the membrane of the microcapsule. These small amounts of oily compound can then be distributed on the backing by diffusion and produce the desired effect, such as a special fragrance or repellant effect, without large amounts of the oil getting onto the fibers of the textile backing.
  • the inclusion in capsules prevents dust or dirt from being bound by the oily compounds applied to the fibers, which likewise has a disadvantageous effect on the appearance of the wearer.
  • the color of the active substance enclosed in the microcapsules can also be brightened. For example, extracts from plants are often discolored brown, so that they are difficult to apply to light-colored fabrics, especially white fabrics, without causing discoloration of the fabric. Furthermore, the active substance enclosed in the microcapsule is also protected against oxidation by oxygen from the ambient air or against high-energy UV radiation, so that the active substance enclosed in the microcapsule remains longer-lasting and can therefore develop its effect over a longer period of time. To improve the shelf life, the compound enclosed in the microcapsule can also contain an anti-oxidant. Furthermore, volatile compounds can be included in the microcapsules, for example by dissolving them in an oily carrier and enclosing the carrier with the dissolved volatile compound in the microcapsule. The biologically active substances are then released into the environment over a longer period of time. This can, for example, slow down the evaporation of volatile compounds.
  • microcapsules provided on carriers can be produced by known processes. An overview of methods for microencapsulation can be found, for example, in Benita, S., Microencapsulation, Vol 73, Marcel Decker 1996 and Risch, SJ, Rei- neccius, GA (Eds.) Flavor encapsulation, Am. Chem. Soc. 1988. Microencapsulation is used, for example, to prepare and preserve flavorings for ready meals or to encapsulate colorants for copy paper. In these applications, however, diffusion of the active ingredient through the membrane of the microcapsule should, if possible, be suppressed.
  • Microcapsules can be produced from various materials, for example from metal oxides, waxes, natural polymers such as alginate, chitosan or cyclodextrins, or also synthetic polymers such as polyvinyl acetate or sulfoxymethyl cellulose.
  • the stability and permeability of the membrane can be varied by adding binders.
  • Microcapsules can be produced with diameters from a few micrometers to several millimeters.
  • the microcapsules can also be designed so that they are under mechanical stress, e.g. by rubbing, bursting and releasing the enclosed active ingredient.
  • This embodiment is particularly suitable for more volatile active substances which are to be released over a comparatively short period of time, for example several weeks, and which evaporate essentially without residue.
  • the membrane of the microcapsules is preferred in the Formed such that the membrane is permeable to the biologically active ingredient.
  • the biologically active substance can then diffuse through the membrane and is released into the environment in small amounts over a comparatively long period of time.
  • the membrane of the microcapsules is therefore preferably designed such that it has sufficiently high mechanical stability so that the microcapsules do not break open under moderate mechanical stress. Nevertheless, a constant release of the active ingredient to the environment should be ensured by the active ingredient diffusing through the membrane and then evaporating.
  • the membrane is preferably made from an alginate. The production of such microcapsules is described for example in DE 41 25 133 C2.
  • the microcapsules can be applied to the carrier by various methods. For example, simple sprinkling on the carrier is suitable, taking care to ensure that the microcapsules are distributed as evenly as possible in the carrier. Depending on the type of material of the carrier and the intended use, a simple sprinkling of the microcapsules is sufficient, without the need for further fixation. Coating by brushing, dipping or splashing, by quayander coating, direct coating on the extruder, foam application or fusion is also suitable. A detailed description of these methods can be found e.g. with M. Peter, H.K. Rouette, Basics of Textile Finishing: Handbook of Technology, Processes and Machines, 13th Edition, Irishr fraverlag, 1989.
  • the carrier can be designed in any way.
  • the carrier should have sufficient strength to allow the microcapsules to be fixed over long periods of time.
  • Suitable carriers are, for example, textile materials such as woven or non-woven fabrics. However, foams or paper strips are also suitable.
  • Cotton-like carriers are also suitable.
  • the carrier is selected according to the intended use. For example, a non-woven material is suitable as Carrier, if the carrier is inserted as a layer in the structure of a mattress or a piece of clothing. For beds, cotton-like carriers made of synthetic materials are suitable, such as those used for filling pillows or sleeping bags.
  • the microcapsules are preferably fixed on the carrier.
  • an adhesive can first be applied to the carrier, which can optionally be dissolved in a suitable solvent, and then the microcapsules on the pretreated carrier.
  • the adhesive can first be applied to fibers of the textile carrier. It is also possible to first apply the microcapsules to the carrier and only then to apply the adhesive. In order to improve the fixation of the microcapsules on the carrier, it can also be pressed and / or heated for a short time after the microcapsules and the adhesive have been applied.
  • Commercially available powdered, liquid or foamable adhesive systems can be used, e.g. Dispersion adhesive, solvent-based adhesive or reactive adhesive.
  • Fibers e.g. made of polyolefins or polyvinyl chloride, which change their consistency when exposed to heat.
  • the membrane of the microcapsules consists of a material that softens under the influence of heat and has adhesive properties.
  • the microcapsule can also be provided with a coating of a, preferably hot-melt adhesive. After the microcapsules have been placed on the textile carrier, they can then be fixed on the textile carrier under the action of pressure and heat.
  • natural or synthetic substances may be used as natural latex, synthetic latex, for example, NBR latex, SBR latex, CR latex, polybutadienes, polyacrylates, Polyes ⁇ ter, polyurethanes, and mixtures of these substances.
  • the carrier is preferably a textile carrier. Any woven or non-woven fiber material per se can be used as the textile carrier. Examples of suitable textile supports are knitted fabrics, woven fabrics, felt, nonwovens, knitwear, composite materials.
  • the fibers of the textile carrier can be vegetable or animal fibers, for example wool. However, synthetic fibers or mixed materials can also be used. A combination with metal mesh, paper, cardboard, foils or spray foils produced by lamination is also possible. According to the invention, microcapsules are then provided on fibers of the carrier which contain an evaporable active substance.
  • a nonwoven material is particularly preferred as the textile carrier.
  • the fibers of a fleece form a loose, partially or fully consolidated bond, in which the microcapsules can be easily distributed evenly when sprinkled on. After a pressure and heat treatment to fix the microcapsules, the fleece also easily returns to its original shape.
  • the fleece can be cut to any shape, has a low basis weight and, depending on the thickness of the fleece, can also have a good insulating effect. It can therefore be easily incorporated into clothing, for example.
  • the clothing can then exude an individual fragrance or, for example, be permanently protected against pest infestation, in particular moths, by including pest repellant compounds, in particular an extract from components of the neem tree, in the microcapsules.
  • the textile carrier can be surrounded by a textile shell.
  • the shell can be designed in many different ways.
  • One embodiment is, for example, the items of clothing already described above.
  • a particularly preferred embodiment is a mattress cover, in which the textile carrier, preferably a nonwoven, is surrounded by the underside and the top of fabric webs which are connected to one another. which, for example, are sewn to surround the fleece as a covering.
  • the microcapsules contain a pest repellant compound, in particular a compound that repels house dust mites
  • the mattress cover can be used to effectively protect mattresses from mite infestation. This is particularly advantageous for those with allergies to house dust or for mattresses in hotels that are used by a large number of different people and therefore often have a high level of dust mite pollution.
  • the carrier particularly preferably has a multilayer structure, the microcapsules being sandwiched between two adjacent layers.
  • a structure can comprise, for example, two layers of a nonwoven material, the microcapsules being introduced between the two layers.
  • Different materials can also be combined for the individual layers.
  • a fleece made of a synthetic polymer, for example a polyester fleece can be combined with a wool fleece.
  • only one of the layers consists of a textile material and the other layer, for example of a film, a paper web or a foam.
  • the adjacent layers can be fixed to one another at points or over the entire surface, for example by gluing or sewing.
  • the layers themselves can have any thickness and layers with different or the same thickness can be combined.
  • a spunbonded polyester fleece with a basis weight of 10 g / m 2 can be combined with a 20 cm thick wool fleece.
  • the membrane of the microcapsules consists of a waterproof, heat-resistant material.
  • the carrier can also be washed, for example in a washing machine.
  • the carrier is a textile carrier.
  • heat resistance up to about 60 ° C is sufficient, because then the carrier, which is contained in a mattress cover, for example, is washed in the washing machine at regular intervals. machine can be washed with a normal washing program.
  • Such microcapsules have, for example, a membrane made of hardened alginate, for example zinc or calcium alginate, or polyacrylate.
  • microcapsules applied to the carrier are particularly suitable for the inclusion of essential oils, in concentrated form, and also as part of a suitable formulation, for example dissolved in an oil.
  • the microcapsules applied to the carrier contain a pest repellent active ingredient, in particular an extract from components of the neem tree.
  • a pest repellent active ingredient in particular an extract from components of the neem tree.
  • the preparation of a suitable extract is described for example in WO 97/25867.
  • the extract is obtained by extracting the components of the neem tree using supercritical gases, especially supercritical carbon dioxide.
  • the oily extract obtained in this way is almost odorless and has a strong repellant effect, especially against house dust mites.
  • the biologically active ingredient contained in the microcapsules is a hop extract or a St. John's wort extract.
  • These active substances have a bactericidal effect.
  • growth of microbes can be suppressed, for example, if the microcapsules are incorporated into a mattress or into bed linen, for example.
  • Another advantage is that such active substances have a calming effect on humans. A deeper and healthier sleep can be achieved, for example, by using a mattress in which microcapsules containing a hop extract are incorporated.
  • Different active ingredients can also be contained in a microcapsule, as can microcapsules that contain different active ingredients. Contain substances that can be used in combination with each other.
  • the carrier preferably has an impregnation which preferably contains the active substance contained in the microcapsules. This impregnation bridges the period of time until a stable concentration of the active ingredient in and around the carrier is established by diffusion of the active ingredient through the membrane of the microcapsules.
  • the invention also includes a method of making the carrier described above.
  • the carrier according to the invention is produced by first providing a carrier, in particular a textile carrier, onto which microcapsules containing an evaporable active substance are applied, and the microcapsules are fixed on the carrier, for example on fibers of the textile carrier.
  • mechanical fixing of the microcapsules in the carrier is sufficient, for example if the carrier has a felt-like structure, and microcapsules are enclosed in cavities formed by the fibers.
  • Such a fixation is sufficient, for example, if the carrier is not later subjected to strong mechanical loads and is processed, for example, into a curtain or a tapestry.
  • the microcapsules can be mixed with the carrier by simply sprinkling them on.
  • the carrier can be designed as a pillow or duvet. It is then sufficient to sprinkle the microcapsules into the filling material of the bedding, for example feathers or fibers made of a polymeric material.
  • an adhesive is preferably applied to the textile carrier before and / or after the application of the microcapsules.
  • the microcapsules can be fixed on the carrier.
  • the adhesive can be applied as a powder that melts when exposed to heat.
  • microcapsules can also have an adhesive shell. They can then be attached to the carrier, in particular to fibers of the carrier, under the action of pressure and / or with heating.
  • a first layer of a carrier is provided.
  • the microcapsules are applied to the first layer of the carrier, then a second layer of a carrier is applied to the first layer of the carrier, it being possible for the first and second layers to be the same or different.
  • the first and second layers are then joined together.
  • a sandwich-like structure of the carrier according to the invention is obtained, the microcapsules being fixed between two adjacent layers.
  • the first layer of the carrier can be connected to the second layer of the carrier, for example by gluing or sewing.
  • the materials of the two layers can be the same and, for example, consist of a fleece.
  • the two layers can also consist of different materials.
  • the first layer can consist of a paper web and the second layer can consist of a textile material, for example a fabric web.
  • the two layers can then be glued to a wallpaper, for example, the microcapsules being fixed between the paper and the fabric.
  • a composite of foam and textile material can then be integrated into the upholstery of the seat of a chair, for example.
  • the carrier can also be impregnated, for example impregnated from the active ingredient contained in the microcapsules.
  • the carrier according to the invention in particular in an embodiment as a textile carrier, is particularly suitable for incorporation into a mattress, in particular when the microcapsules contain an active ingredient which repels pests, in particular an active ingredient which repels dust mites.
  • the invention therefore also relates to a mattress which comprises at least one layer which consists of the carrier described above.
  • the carrier is preferably designed as a textile carrier, which is preferably designed as a layer running around a mattress core, which is arranged between the mattress core and the mattress outer material.
  • FIG. 1 shows a schematic representation of a device for carrying out the method according to the invention
  • Fig. 2 a cross section through a mattress cover.
  • FIG. 3 a schematic representation of a cross section through a mattress equipped with a textile carrier according to the invention.
  • a carrier web 1 which consists, for example, of a fleece, is fed to an application station 3 via a first deflection roller 2.
  • adhesive and microcapsules 4 are applied to the carrier web 1 in certain quantities.
  • the order station 3 has corresponding directions for the application, for example a scattering device 3a, through which the microcapsules 4 mixed with a powder adhesive can be sprinkled onto the carrier web 1.
  • the carrier web 1 coated with the microcapsules 4 is led out of the application station 3 and guided into the dryer channel 8 in order to fix the microcapsules 4 on the carrier web 1 by the action of heat, under which the adhesive applied in the application station 3 melts, for example.
  • the carrier web coated with microcapsules 4 can be led out after the deflection roller 9.
  • the carrier web 1 coated on one side can then be processed into further products.
  • the carrier web 1 coated on one side is preferably further processed into a sandwich structure.
  • a cover sheet 5, which also consists, for example, of a nonwoven, is fed via a third deflection roller 6 to the carrier sheet 1 coated on one side.
  • a pressure roller 10 is arranged opposite the third deflection roller 9.
  • the carrier web 1 and cover web 5 coated on one side with microcapsules 4 are passed between the third deflection roller 9 and the pressure roller 10 and bonded to one another under pressure.
  • a sandwich structure 12 is obtained, in which microcapsules 4 are sandwiched between the carrier web 1 and the top web 5.
  • the sandwich structure can also be impregnated with a starter component.
  • the sandwich structure is carried out under a spray head 11, through which the starter component is sprayed onto the sandwich structure 12.
  • the sandwich structure 12 is then fed via a pair of rollers 9 and 10 for further processing.
  • the sandwich structure 12 can be wound up on a roll, for example.
  • FIG. 2 shows a section through the structure, for example of a mattress cover, which contains appropriate textile carrier.
  • the mattress cover is covered on the outer sides in each case by a lower and an upper fabric web 13, 14.
  • the textile carrier 12 according to the invention which has a sandwich structure, is enclosed between the lower and upper fabric webs 13, 14.
  • the textile carrier comprises a carrier web 1 made of a fleece and a cover web 5, which likewise consists of a fleece.
  • Microcapsules 4 which contain a mite-repellant active ingredient, which was obtained by extraction of components of the neem tree, in particular neem cores, are enclosed between carrier web 1 and cover web 5.
  • the textile backing is fixed by stitching 15 between the upper and lower fabric webs 13, 14.
  • the mattress cover shown in FIG. 2 can either be integrated directly into a mattress or can be designed as a cover that can be stretched over the surface of a mattress, for example, by means of a circumferential elastic band. In both embodiments, an infestation of the mattress by dust mites can be effectively suppressed for a period of up to several years.
  • the equipment of a mattress with the carrier according to the invention is shown schematically in FIG. 3.
  • the textile carrier 12 according to the invention described above is worked over the fleece 17 and, as described above, contains a mite-repelling neem extract enclosed in microcapsules.
  • the textile carrier 12 is in turn covered by a mattress fabric 16 and is fixed by this on the mattress core 18.
  • the textile carrier according to the invention is therefore permanently incorporated in the mattress. This protects both the mattress core 18 and the mat 17 against the ingress of dust mites.
  • the microcapsules form a protective wall against dust mites that migrate in from outside.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Textile Engineering (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Toxicology (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • Mycology (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Support textile et procédé de fabrication dudit support dans lequel sont introduites des microcapsules (4) qui contiennent une substance active évaporable. Cette substance active se diffuse à travers la membrane de la microcapsule (4) et produit une concentration constante de substance active sur le support textile (12). Lesdites microcapsules contiennent de préférence un extrait répulsif contre les parasites tiré de constituants de l'arbre Azadirachta indica.
PCT/EP2003/001927 2002-02-26 2003-02-25 Support textile et procede de fabrication dudit support Ceased WO2003071871A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003210353A AU2003210353A1 (en) 2002-02-26 2003-02-25 Substrate, especially textile substrate, and method for producing the same
EP03742957A EP1478230A1 (fr) 2002-02-26 2003-02-25 Support textile et procede de fabrication dudit support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10208199.9 2002-02-26
DE2002108199 DE10208199A1 (de) 2002-02-26 2002-02-26 Textiler Träger und Verfahren zu dessen Herstellung

Publications (1)

Publication Number Publication Date
WO2003071871A1 true WO2003071871A1 (fr) 2003-09-04

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PCT/EP2003/001927 Ceased WO2003071871A1 (fr) 2002-02-26 2003-02-25 Support textile et procede de fabrication dudit support

Country Status (4)

Country Link
EP (1) EP1478230A1 (fr)
AU (1) AU2003210353A1 (fr)
DE (1) DE10208199A1 (fr)
WO (1) WO2003071871A1 (fr)

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WO2004034791A1 (fr) * 2002-10-21 2004-04-29 Givaudan Sa Compositions pesticides
WO2007085640A3 (fr) * 2006-01-27 2008-01-10 Intelligent Insect Control Composition pour impregnation de tissus tels que des nappes de filet
BE1018364A5 (nl) * 2009-02-06 2010-09-07 Cruysberghs Rudiger Textiel met biocontrolerende eigenschappen.
EP1432866B1 (fr) * 2001-06-22 2010-11-03 YEREB LAB Limited Procede de traitement anti-acarien et anti-microbien de materiaux textiles
LU92879B1 (fr) * 2015-11-05 2017-06-21 Loen Holding S A R L Accessoires répulsifs contre puces, acariens et insectes
CN107660928A (zh) * 2017-09-07 2018-02-06 江苏众恒可来比家具有限公司 一种具有保健功能的床垫及其生产工艺
ES2849826A1 (es) * 2020-02-22 2021-08-23 Patino Marcela Viviana Sinisterra Pijama con textil inteligente

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DE102005033202A1 (de) * 2004-11-07 2006-05-11 Lahmer, Georg, Dipl.-Ing. Wirkstoffvlies
EP1736207A1 (fr) * 2005-06-23 2006-12-27 Mibelle AG Cosmetics Composition dépilatoire
DE102011055721B4 (de) 2011-11-25 2020-03-05 Strick Zella GmbH & Co. KG Gestricktes Kleidungsstück mit Mottenschutz

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1432866B1 (fr) * 2001-06-22 2010-11-03 YEREB LAB Limited Procede de traitement anti-acarien et anti-microbien de materiaux textiles
WO2004034791A1 (fr) * 2002-10-21 2004-04-29 Givaudan Sa Compositions pesticides
WO2007085640A3 (fr) * 2006-01-27 2008-01-10 Intelligent Insect Control Composition pour impregnation de tissus tels que des nappes de filet
AP2489A (en) * 2006-01-27 2012-10-04 Mvf 3 Aps Textile impregnated with crystalline insecticide
BE1018364A5 (nl) * 2009-02-06 2010-09-07 Cruysberghs Rudiger Textiel met biocontrolerende eigenschappen.
LU92879B1 (fr) * 2015-11-05 2017-06-21 Loen Holding S A R L Accessoires répulsifs contre puces, acariens et insectes
CN107660928A (zh) * 2017-09-07 2018-02-06 江苏众恒可来比家具有限公司 一种具有保健功能的床垫及其生产工艺
CN107660928B (zh) * 2017-09-07 2021-07-30 江苏众恒可来比家具有限公司 一种具有保健功能的床垫及其生产工艺
ES2849826A1 (es) * 2020-02-22 2021-08-23 Patino Marcela Viviana Sinisterra Pijama con textil inteligente

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AU2003210353A1 (en) 2003-09-09
EP1478230A1 (fr) 2004-11-24

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