WO1994023947A1 - Produit plat multicouche et son procede de fabrication - Google Patents

Produit plat multicouche et son procede de fabrication Download PDF

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Publication number
WO1994023947A1
WO1994023947A1 PCT/DE1994/000376 DE9400376W WO9423947A1 WO 1994023947 A1 WO1994023947 A1 WO 1994023947A1 DE 9400376 W DE9400376 W DE 9400376W WO 9423947 A1 WO9423947 A1 WO 9423947A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
film
fiber
filament
fibers
Prior art date
Application number
PCT/DE1994/000376
Other languages
German (de)
English (en)
Inventor
Reiner Thiele
Heinz-Horst Boich
Andreas Kirsch
Tarek Fahmy
Original Assignee
Corovin 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 Corovin Gmbh filed Critical Corovin Gmbh
Publication of WO1994023947A1 publication Critical patent/WO1994023947A1/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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • 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
    • 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
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—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 welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • 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
    • 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
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • 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
    • 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
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2305/22—Fibres of short length
    • B32B2305/28—Fibres of short length in the form of a 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
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2307/728—Hydrophilic
    • 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
    • B32B2333/00—Polymers of unsaturated acids or derivatives thereof
    • B32B2333/04—Polymers of esters
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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

Definitions

  • the invention relates to a multi-layer fabric according to the preamble of claim 1.
  • Textile-based fabrics are basically permeable to liquids.
  • the liquid permeability can be reduced by a particularly fine and dense fiber structure and an impregnation, but it cannot be completely eliminated by such complex measures.
  • Permanent liquid impermeability or liquid permeability specifically controlled by perforation can only be achieved with a sheet-like structure which achieves this property due to the homogeneous material structure. However, it is precisely this material structure which affects applications in which a fluffy textile surface character is desired, as is the case with the diaper outer skin.
  • such laminates made of films or sheets with nonwovens have a low tear resistance, especially when the film or sheet is extruded onto the presented nonwoven. Although they initially offer great resistance to tearing, once a tear has occurred, the resistance is against tearing much less than the sum of the tear strengths of the individual components would suggest.
  • the invention has for its object to provide a multilayer sheet which is both inherently impermeable to liquids and which has a fluffy, textile, skin-friendly surface with respect to a discrete film or sheet and which is furthermore compared to the discrete film or the discrete film has only a slightly higher basis weight, no higher rigidity and no reduced tear resistance.
  • the liquid-blocking properties are already at a very small thickness of z. B. 5 microns and thus a low weight.
  • the small thickness of the material is of great importance insofar as the resistance to bending and kinking is reduced. It is therefore possible to produce smaller bending radii without the material striving to spring back into its flat starting position. As a result, good adaptation and conforming to different parts of the body are possible, particularly when used for diapers.
  • the textile character is generated by the fiber or filament layer and it is prevented that the film or film receives direct physical contact.
  • the film or foil layer is not mechanically damaged as a result of the superficial fusion or the adhesive bonding of the fiber or filament layer to the film or foil layer. This does not affect their original liquid-impermeable property. is pregnant. Furthermore, when fusing or gluing, the layers are positively connected in the case of fusing and in the case of gluing at least non-positively, sometimes also positively, with a very high adhesive force.
  • the fiber or filament layer can act as a reinforcement of the film or the film.
  • the tear propagation resistance of the fabric is significantly improved compared to a discrete film of the same thickness or a corresponding film.
  • the fiber or filament layer initially consists of unconnected individual fibers, differently colored fibers or filaments can be processed in order to create optical effects. Furthermore, the area. chengechane also using uneven, z. B. effect-embossed films or foils can be produced, since the flatness of the surface of the film or foil has no significant influence on the entrance of a melt or adhesive connection with the fibers or filaments.
  • Optical effects by printing can be realized by applying the print to the surface of the film or foil.
  • the pressure shines through the fiber or filament structure and is protected against abrasion by it.
  • the fiber or filament layer can consist of continuous fibers, of finely long microfibers, the basis weight of which is preferably in the range from 2 to 10 g / m 2 , or of finely long staple fibers with a length in the range between 20 and 100 mm. All nonwoven formation technologies can therefore be used without restriction.
  • Layers of finely long microfibers are particularly advantageous, the basis weight of which is in the range between 2 to 100 g / m 2, preferably between 2 to 10 g / m 2 , and which can be represented as a meltblown nonwoven in a meltblowing process.
  • the volume gain of the fiber or filament layer in relation to the material weight used is very high.
  • this basis weight a homogeneously appearing surface can already be created. A layer with such a small basis weight would not be able to exist independently. This only arises in connection with the film or foil.
  • the fibers or filaments have liquid-storing properties.
  • Such a sheet is also suitable as a base in the medical field, e.g. B. on operating tables, since it is able to absorb limited amounts of liquid.
  • the film or foil layer consists of several individual foils blocked together. This construction results in a higher specific tensile strength in the longitudinal and transverse directions and an improved puncture resistance. In addition, there is an improvement in softness due to the possibility of micro-displacement of the individual films. If the material of the fibers or filaments has approximately the same melting point and affinity as the material of the film or sheet layer, the fibers or filaments can be melted onto the surface of the film or sheet. Such a product is inexpensive to manufacture and, because of the positive connection of the fibers or filaments to the film or sheet layer, has a high abrasion resistance.
  • the film or foil layer consists of a mixture of material components, of which at least one component has approximately the same melting point as the material or a material component of the fiber - Or filament layer and has affinity for this material or this material component.
  • the film or foil layer consists of a multi-layer layer, the layer facing the fiber or filament layer consisting of a material which is approximately has the same melting point as the material or a material component of the fiber or filament layer and has affinity for this material or this material component.
  • the film or foil layer can consist of a mixture of polyethylene and polypropylene or their copolymers and the fiber or filament layer of polyethylene, polypropylene, acrylic, polyamide or polyester. If, on the other hand, the material of the fibers or filaments has a different melting point and / or no affinity compared to the material of the film or film layer, the fibers or filaments are glued to the film or film layer via an adhesive layer.
  • Adhesive bonding represents a higher production outlay, but there are no restrictions in the choice of material for the fibers or filaments on the one hand and the film or foil layer on the other hand. As a result, the material properties desired for the film or foil layer and the fiber or filament layer can be selected independently of one another.
  • the film or foil layer can consist of polyethylene and the fiber or filament layer can consist of polypropylene. While the film or foil layer obtained in this way is characterized by being rustle-free, the fibers or filaments have high strength with little abrasion. These two materials, which have no common melting points and no mutual affinity, can be glued together by the adhesive layer and can therefore be used together.
  • An adhesive adhesive layer which can be activated by pressurization or heating, is used to bond the film or film layer to the fiber or filament layer.
  • this can be arranged on the film or foil layer and / or the fiber or filament layer. It is thus possible to connect the layers over the entire surface or at connecting points spaced apart from one another.
  • the adhesive adhesive layer preferably consists of polyethylene acrylate copolymers and / or polyethylene vinyl acetate and / or atactic polypropylene and / or crafted polypropylene and / or alpha-polyolephins.
  • the adhesive adhesive layer can also have a preferably fibrous structure. As a result, an intimate, more in-depth connection of the two layers can be produced without the textile properties being adversely affected thereby.
  • the film or foil layer is vapor permeable.
  • hermetic sealing of the covered parts of the body is prevented. It is thus made possible that air can get to the covered parts of the body and perspiration of the skin can escape in the opposite direction without impairing the waterproofness of the fabric.
  • the film or foil layer and the fiber or filament layer can also consist of degradable materials.
  • a material is particularly suitable for non-recyclable products, such as. B. suitable diapers.
  • materials can be used which have no common melting points and no mutual affinity, since they can be bonded to one another by the adhesive adhesive layer.
  • Materials are suitable as film or film material and as fiber or filament material in which bond breakage in the main chain of the polymer due to chemical, biological and / or physical Forces occur that take place at a reasonably accelerated rate compared to a reference and lead to fragmentation or disintegration of the plastic.
  • the film or foil layer can also be perforated in partial areas of its surface.
  • a controlled liquid permeability can be created in a targeted manner.
  • a sanitary napkin in which a suction body is completely surrounded by a flat structure according to the invention. Perforation of the area intended for body positioning makes the covering of the bandage permeable to liquid at this point, while it remains completely impermeable to liquid on the opposite side facing the clothing.
  • the invention further relates to a method for the production of a multilayer fabric according to the preamble of claim 22.
  • the fabric is expediently produced in process steps which follow one another directly.
  • the fiber or filament layer can be formed on a fleece laying device by the melt spinning process or the melt blowing process.
  • the film or foil layer is then integrated into the material flow with the fiber or filament layer. This can either be manufactured simultaneously or also prefabricated and fed from a roll for processing.
  • the fiber or filament layer and the film or film layer are brought into contact with one another and, in a further process step, are connected to one another over the full area or at spaced connection points, e.g. by calender rolling.
  • the integration of the fiber or filament layer into the material flow is brought about by placing the film or foil layer on the fiber or filament layer located on the laying belt and transported along with it.
  • connection is made by fusing, the fiber or filament layer and the film or foil layer are brought into direct contact and subjected to pressure and temperature.
  • adhesive bonding either the fiber or filament layer or the film or foil layer is provided with an adhesive layer which can be activated by pressure and / or heating before the two components of the sheet are brought into contact and connected.
  • connection it is particularly advantageous to carry out the connection immediately after the production of the nonwoven and the film or film layer, since the connection then only requires pressurization and the residual heat of the production process of the fiber or filament layer and / or the Film or foil layer can be used.
  • FIG. 2 shows a device of a first embodiment for producing a multilayer sheet
  • FIG 3 shows a further alternative of a device for producing the multilayer sheet.
  • connection 1 shows a section through a multilayer surface. Chengetrucke from a fiber or filament layer 10, and a layer 12 consisting of a homogeneous film or film.
  • the two layers 10 and 12 are connected to one another over the entire surface or at spaced apart connection points 14.
  • the connection can be formed by fusing or by gluing by means of an adhesive layer introduced between the two layers 10 and 12. In the case of a fusion, there is a positive connection, while in the case of a bond there is a non-positive connection which, however, can develop extremely high binding forces.
  • a preferred application for the multi-layer fabric is the outer, ie clothing-facing, end surface of the diaper's suction space, as well as the outer flaps and fastening tabs lying against the skin.
  • the fabric is completely impermeable to liquids here, but has pleasant textile properties.
  • the fabric also has good mechanical properties. These are on the one hand the suppleness and flexibility that allow the diaper to fit well on the body parts, and on the other hand the great resistance to tearing and tearing.
  • FIGS. 2 and 3 show devices for producing a multilayer sheet.
  • a fleece is first produced on the laying belt 18 of a laying device, which can alternatively be formed by the spunbonding method or the meltblowing method.
  • a nozzle device 20 for the emerging melt is located above the laying belt 18, which can be designed as a spinning beam in the case of a spinning device or as an arrangement of melt-blowing nozzles in the case of a melt-blowing device.
  • a foil or film is produced in the transport direction at a distance from the nozzle arrangement 20.
  • a nozzle 22 is shown schematically for this purpose, from which the film or film material emerges.
  • a film produced in an external manufacturing process could also be unwound from a roll and fed to the laying tape 18.
  • a nozzle arrangement 28 for producing an adhesive adhesive layer between the position of the spinning or meltblowing nozzles 20 and the device 22 for producing or feeding the film or film layer is a nozzle arrangement 28 for producing an adhesive adhesive layer between the position of the spinning or meltblowing nozzles 20 and the device 22 for producing or feeding the film or film layer.
  • This device can of course be omitted if the connection between the fiber or filament layer with the film or foil layer is made by fusing.
  • FIG. 2 shows the alternative in which the adhesive layer is applied to the fiber or filament layer and
  • FIG. 3 shows the second alternative, in which the adhesive layer is applied to the side of the film or the film facing the fiber or filament layer.
  • the nozzle arrangement 28 for producing an adhesive adhesive layer can be designed similarly to the spinning or meltblowing nozzles 20 in order to additionally obtain a fiber structure of the adhesive adhesive layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention décrit un produit plat multicouche, composée d'une couche en forme de film ou de feuille (12) et d'au moins une couche de fibres ou de filaments (10) reliée à la première. Cette couche de fibres ou de filaments est constituée de fibres ou filaments indépendants qui, aussitôt après leur dépôt plan, sont fondus ou collés sur la couche en forme de film ou de feuille, soit sur toute leur longueur soit sur des parties de celle-ci.
PCT/DE1994/000376 1993-04-10 1994-03-31 Produit plat multicouche et son procede de fabrication WO1994023947A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4311867A DE4311867C2 (de) 1993-04-10 1993-04-10 Mehrschichtiges Flächengebilde sowie Verfahren zur Herstellung eines mehrschichtigen Flächengebildes
DEP4311867.4 1993-04-10

Publications (1)

Publication Number Publication Date
WO1994023947A1 true WO1994023947A1 (fr) 1994-10-27

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Cited By (5)

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US5843057A (en) * 1996-07-15 1998-12-01 Kimberly-Clark Worldwide, Inc. Film-nonwoven laminate containing an adhesively-reinforced stretch-thinned film
US6001460A (en) * 1996-12-30 1999-12-14 Kimberly-Clark Worldwide, Inc. Elastic laminated fabric material and method of making same
US7008496B2 (en) 2002-12-16 2006-03-07 Kimberly-Clark Worldwide, Inc. One-step necked-bonded laminate process and apparatus
US8603281B2 (en) 2008-06-30 2013-12-10 Kimberly-Clark Worldwide, Inc. Elastic composite containing a low strength and lightweight nonwoven facing
US8679992B2 (en) 2008-06-30 2014-03-25 Kimberly-Clark Worldwide, Inc. Elastic composite formed from multiple laminate structures

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WO1997010973A1 (fr) 1995-09-22 1997-03-27 Joseph Rychter Sac gonflable et son procede de fabrication
DE19548979A1 (de) * 1995-09-22 1997-03-27 Josef Rychter Aufblasbarer Gassack und Verfahren zu seiner Herstellung
DE19604956C2 (de) * 1996-02-10 1999-03-25 Corovin Gmbh Verfahren zur Herstellung eines mehrlagigen elastischen Flächengebildes sowie mehrlagiges elastisches Flächengebilde
DE19647459C2 (de) * 1996-11-16 2001-01-25 M & W Verpackungen Gmbh Flächengebilde aus einer gummielastischen Schicht mit aufliegender Vliesschicht und Verfahren zu seiner Herstellung
DE19653608B4 (de) * 1996-12-20 2006-03-16 Dieter Dipl.-Ing. Dengl Folien mit textilem Griff
US6075178A (en) * 1997-09-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Absorbent article with wetness indicator
US6140551A (en) * 1997-09-29 2000-10-31 Kimberly-Clark Worldwide, Inc. Absorbent article with visually and tactilely distinctive outer cover
ID29844A (id) * 1998-09-22 2001-10-18 Kimberly Clark Co Proses untuk membuat laminat dari film yang belum matang dan jaringan bukan tenunan yang belum matang dan produk-produk yang diproduksi daripadanya
DE19851667C2 (de) 1998-11-10 2002-07-04 Coronor Composites Gmbh Mehrschichtiges Verbundmaterial
ES2259831T3 (es) * 1999-07-02 2006-10-16 Fintex And Partners Italia S.P.A. Material laminar que comprende una pelicula de plastico y una banda de fibras, procedimiento y dispositivo para su produccion y sus utilizaciones.
US6319455B1 (en) 1999-08-13 2001-11-20 First Quality Nonwovens, Inc. Nonwoven fabric with high CD elongation and method of making same
DE19956926A1 (de) * 1999-11-26 2001-06-13 Boich Heinz Horst Textile Oberflächen auf Reissfaserbasis
GB0026507D0 (en) * 2000-10-30 2000-12-13 Univ Leeds Adhesive
DE10319967A1 (de) 2003-05-05 2004-11-25 Quadrant Plastic Composites Ag Faservlies-Verbundelement
DE102005016246B4 (de) * 2005-04-08 2009-12-31 Sandler Ag Elastischer Verbundvliesstoff und Verfahren zu dessen Herstellung
EP2572019A2 (fr) 2010-05-21 2013-03-27 Fiberweb Corovin GmbH Produit polymère extrudé et son procédé de fabrication
GB201104684D0 (en) 2011-03-18 2011-05-04 Metz Paul Friedrich Composite film and fibre of keratins and cellulose

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GB1387727A (en) * 1972-07-11 1975-03-19 Exxon Research Engineering Co Non-woven polymer laminate
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EP0010171A1 (fr) * 1978-09-21 1980-04-30 Intermedicat GmbH Feuille multicouche désintégrable en milieu aqueux, et récipient et sac fabriqués à partir de cette feuille
US4725473A (en) * 1986-11-25 1988-02-16 Kimberly-Clark Corporation Cloth-like, liquid impervious composite material and method for making the same
EP0293801A2 (fr) * 1987-06-03 1988-12-07 Unikay Disposables S.R.L. Produit composite en feuille
EP0360929A1 (fr) * 1988-09-02 1990-04-04 VERATEC, INC. (a Delaware corp.) Stratifié fibre-film

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NL6912926A (fr) * 1969-08-25 1971-03-01
DE2234008A1 (de) * 1972-07-11 1974-01-24 Exxon Research Engineering Co Verfahren zur herstellung von schichtstoffen
GB1387727A (en) * 1972-07-11 1975-03-19 Exxon Research Engineering Co Non-woven polymer laminate
US3949130A (en) * 1974-01-04 1976-04-06 Tuff Spun Products, Inc. Spun bonded fabric, and articles made therefrom
EP0010171A1 (fr) * 1978-09-21 1980-04-30 Intermedicat GmbH Feuille multicouche désintégrable en milieu aqueux, et récipient et sac fabriqués à partir de cette feuille
US4725473A (en) * 1986-11-25 1988-02-16 Kimberly-Clark Corporation Cloth-like, liquid impervious composite material and method for making the same
EP0293801A2 (fr) * 1987-06-03 1988-12-07 Unikay Disposables S.R.L. Produit composite en feuille
EP0360929A1 (fr) * 1988-09-02 1990-04-04 VERATEC, INC. (a Delaware corp.) Stratifié fibre-film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843057A (en) * 1996-07-15 1998-12-01 Kimberly-Clark Worldwide, Inc. Film-nonwoven laminate containing an adhesively-reinforced stretch-thinned film
US6001460A (en) * 1996-12-30 1999-12-14 Kimberly-Clark Worldwide, Inc. Elastic laminated fabric material and method of making same
US7008496B2 (en) 2002-12-16 2006-03-07 Kimberly-Clark Worldwide, Inc. One-step necked-bonded laminate process and apparatus
US8603281B2 (en) 2008-06-30 2013-12-10 Kimberly-Clark Worldwide, Inc. Elastic composite containing a low strength and lightweight nonwoven facing
US8679992B2 (en) 2008-06-30 2014-03-25 Kimberly-Clark Worldwide, Inc. Elastic composite formed from multiple laminate structures

Also Published As

Publication number Publication date
DE4311867C2 (de) 1996-10-31
DE4311867A1 (de) 1994-10-13

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