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WO2024037967A1 - Procédé de fabrication d'un produit en tissu multicouche - Google Patents

Procédé de fabrication d'un produit en tissu multicouche Download PDF

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Publication number
WO2024037967A1
WO2024037967A1 PCT/EP2023/072187 EP2023072187W WO2024037967A1 WO 2024037967 A1 WO2024037967 A1 WO 2024037967A1 EP 2023072187 W EP2023072187 W EP 2023072187W WO 2024037967 A1 WO2024037967 A1 WO 2024037967A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
fibers
cloth product
producing
product according
Prior art date
Application number
PCT/EP2023/072187
Other languages
German (de)
English (en)
Inventor
Jessica Pogrzeba
Marie-Elisabeth Rehm
Kai-Uwe Pohl
Selina Schweinsberg
Mike BALLEZ
Anke Birkelbach
Mina HEIDARI
Original Assignee
Dr. Schumacher 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
Priority claimed from PCT/DE2022/100611 external-priority patent/WO2023025351A1/fr
Application filed by Dr. Schumacher Gmbh filed Critical Dr. Schumacher Gmbh
Priority to CN202380059658.7A priority Critical patent/CN119730765A/zh
Priority to EP23757567.5A priority patent/EP4572649A1/fr
Publication of WO2024037967A1 publication Critical patent/WO2024037967A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • 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
    • B32B5/22—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
    • B32B5/265—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B32B5/267—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers characterised by at least one non-woven fabric layer that is a spunbonded 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
    • B32B5/22—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
    • B32B5/265—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B32B5/268—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers characterised by at least one non-woven fabric layer that is a melt-blown fabric
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • 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
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • 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
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • 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
    • B32B2432/00—Cleaning articles, e.g. mops or wipes

Definitions

  • the present invention relates to a method for producing multi-layer cloth products, in particular multi-layer disposable cloth products, such as disposable floor wipes.
  • cloth products are used in a wide variety of ways, particularly in the cosmetic and hygienic sectors as well as for numerous cleaning applications.
  • the cloth products can already be impregnated with a soaking agent and packaged individually or in units with a predetermined number of cloth products, or they can also be packaged in an unsaturated state and, if necessary, only after the When removed from the packaging, it can be moistened or soaked if this is desired or necessary.
  • nonwoven material Depending on the desired application of the cloth products, they comprise several layers of nonwoven material, which can have the same or different compositions.
  • this ensures sufficient stability of the wipe and can on the other hand, in the case of layers made of nonwovens with different compositions, with an appropriate choice of nonwovens, ensure that, for example, a first layer offers good liquid absorption, while a second layer offers good liquid release.
  • WO 02/36339 A2 describes such a multilayer pre-soaked wipe, the at least two layers of which contain a mixture of hydrophilic and hydrophobic fibers.
  • the wipe includes at least one cleaning layer and a layer that serves as a liquid reservoir.
  • the US 4298649 A describes a multi-layer floor wipe made of several layers of polypropylene with different appearance, the floor wipe containing surfactants.
  • WO 2018/017597 A1 describes a disposable floor wipe with at least one layer.
  • the composition of the individual layers should be completely compostable and degradable.
  • a high PLA content ensures that the individual layers can be welded together.
  • the DE 10 2021 122 041 B1 describes a multi-layer disposable floor wipe with an abrasive strip, which comprises at least one cleaning layer and a core layer, both of which contain cellulose and consist entirely of natural fibers and / or regenerated fibers, with a scratch strip on or in the cleaning layer in comparison is arranged to have increased abrasive properties in relation to the remaining cleaning layer, and wherein the scratch strip contains hemp and also consists entirely of natural fibers and / or regenerated fibers.
  • the cleaning layer and the core layer as well as optional further layers are preferably connected to one another by means of micro-entangling through movement generated by ultrasound. Task of the invention
  • the invention solves this problem with the features of the claims and in particular by providing a method for producing a multi-layer cloth product which comprises at least one cleaning layer and a core layer, each of which contains cellulose and / or consists entirely of natural fibers and / or regenerated fibers, the cleaning layer and the core layer are connected to each other using hydroentanglement.
  • one or more additional layers which also consist entirely of natural fibers and/or regenerated fibers, are also connected to the cleaning layer and/or the core layer by means of hydroentanglement.
  • a further layer can in particular be a cover layer consisting entirely of natural fibers and/or regenerated fibers, which is connected to the core layer by hydroentanglement on the side of the core layer facing away from the cleaning layer.
  • a “cleaning layer” refers to a layer with good liquid release. This is the layer that directly contacts the surface to be cleaned during application.
  • the cleaning layer can also be referred to as the “first layer,” which is why “cleaning layer” and “first layer” are used synonymously and interchangeably within the scope of the present disclosure.
  • a “core layer” refers to a layer with good liquid absorption, which serves as a storage reservoir for impregnating agent and passes it on to the cleaning layer.
  • the core layer can also be referred to as the “second layer,” which is why “core layer” and “second layer” are used synonymously and interchangeably within the scope of the present disclosure.
  • a “top layer” refers to a layer that can function as a barrier layer. This further layer can be arranged in particular on the side of the core layer facing away from the cleaning layer and has the effect that liquid is not released upwards, but only downwards.
  • the top layer may also be referred to as a “third layer,” which is why “top layer” and “third layer” are used synonymously and interchangeably within the scope of the present disclosure.
  • the cleaning layer, the core layer, the optional cover layer and further optional layers contain natural fibers and/or regenerated fibers.
  • Natural fibers are all fibers of natural origin that can be used directly without further chemical conversion reactions.
  • Regenerated fibers are fibers that are made from naturally occurring, renewable raw materials using chemical processes. However, like natural fibers, regenerated fibers are also made from 100% natural materials.
  • hydroentanglement has so far only been known for the consolidation of individual or loose fibers, i.e. it is known that nonwovens can be produced using hydroentanglement.
  • hydroentanglement can also be used to connect nonwovens that have already been bonded to one another.
  • Nonwovens refers to solidified materials made of fibers in which the fibers have already formed a firm bond. Since in hydrojet bonding a loose fiber floor is normally hooked together by the water jets and thus solidified, one would not assume that hydrojet bonding can also be used to join nonwovens that have already been solidified, since there are no longer enough loose fiber ends in them are not already entangled with other fibers.
  • Needle punching is a process in which needles are inserted through the fleece, transporting the fiber from the top to the bottom. This connects the fibers to one another and mechanically strengthens the fleece.
  • the core layer was severely damaged by the needling and formed nubs on the “cut-out side”.
  • different compositions of the individual nonwoven layers were chosen, which were to be connected using needling. However, in each case either an adequate connection could not be achieved or the cloth obtained had extremely poor lubricity, which is why it was completely unsuitable for cleaning surfaces and in particular for floor wipes.
  • the method according to the invention for producing a multi-layer cloth product is therefore characterized in that the cleaning layer and the core layer and optionally one or more further layers, in particular the cover layer, are produced by independently of each other the fibers of which it consists for each of these layers. processed into a nonwoven fabric, i.e. solidified, and so the cleaning layer, the core layer and optionally one or more further layers are each obtained as a separate nonwoven fabric, and the (solidified) nonwovens obtained in this way, which are the cleaning layer, the core layer and optionally one or more further layers, in particular the cover layer, are then connected to one another by means of hydroentanglement.
  • the fibers containing the cleaning layer, the core layer and/or the further layer are connected to form a nonwoven fabric Manufacturing technologies that belong to “Web formation” technology or “Web bonding” technology.
  • Preferred processes belonging to “web formation” technology are carding, airlaid processes, wetlaid processes, meltblown processes and spunlaid processes.
  • preferred processes belonging to “web bonding” technology are calendering, hydroentanglement, spunlace, needle punch and air through bonding.
  • the cleaning layer is produced by connecting/solidifying hemp fibers and viscose fibers into a nonwoven fabric, the proportion of hemp fibers preferably being the same size as or greater than the proportion of viscose fibers.
  • the proportion of hemp fibers is approximately 50-70% by weight and the proportion of viscose fibers is approximately 30-50% by weight.
  • a preferred basis weight of the cleaning layer is 40-60 g/m 2 and particularly preferably 50 g/m 2 .
  • the core layer is produced by combining/solidifying cellulose fibers, lyocell fibers and/or pulp optionally with a bio-based binder and/or other plant fibers to form a nonwoven fabric. It is possible, for example, for only cellulose fibers as the core layer to be solidified into a nonwoven fabric using an airlaid process in the presence of a bio-based binder. In particular, this has a basis weight of approximately 120-140 g/m 2 .
  • pulp and lyocell fibers to be solidified into a nonwoven fabric in a wetlaid process, with the proportion of pulp being in particular 65-85% by weight and the proportion of lyocell fibers correspondingly being 15-35% by weight. % lies.
  • Core layers made of pulp/lyocell preferably have a basis weight of approx. 50-70 g/m 2 .
  • additional plant fibers to be used to produce the core layer. In particular, this also applies to hemp fibers, which, however, are also among the cellulose fibers already mentioned.
  • a further layer consisting exclusively of viscose fibers is produced by connecting the viscose fibers to form a nonwoven fabric.
  • This layer preferably functions as a top layer.
  • nonwoven layers with the following compositions are produced in the process according to the invention (in% by weight): Top layer: 100% viscose
  • Core layer 100% airlaid cellulose, bio-based binder
  • nonwoven layers with the following compositions are produced in the process according to the invention (in percent by weight):
  • Core layer 80% pulp, 20% lyocell
  • nonwoven layers with the following compositions are produced in the process according to the invention (in percent by weight):
  • Core layer 100% airlaid cellulose, bio-based binder
  • nonwoven layers with the following compositions are produced in the process according to the invention (in percent by weight):
  • Core layer 100% airlaid cellulose, bio-based binder
  • nonwoven layers with the following compositions are produced in the process according to the invention (in percent by weight):
  • Core layer 100% airlaid cellulose, bio-based binder
  • Cellulose or viscose in the cleaning layer ensures excellent sliding properties of the cloth product, provided it has a 3D embossing.
  • a cleaning layer made of pure cellulose or viscose shows at least equivalent lubricity if the cloth product has an embossing.
  • the hydrojet bonding of the cleaning layer with the core layer and optionally one or more further layers takes place in a device which has at least two drums in which the layers to be bonded are treated with water jets, the water jets in the first drum with a lower pressure on the layers to be connected than in the second drum.
  • the water jets in the first drum preferably emerge from several nozzle strips, each nozzle strip in the first drum comprising several nozzles, the water jets emerging from each nozzle belonging to the same nozzle strip at the same pressure and the pressures of the water jets being too Nozzles belonging to different nozzle strips emerge, can be the same or different and are each between 10 and 80 bar.
  • There are preferably three nozzle strips in the first drum the pressure at which the water jets emerge from the nozzles of the first nozzle strip being preferably 10 to 30 bar
  • the pressure at which the water jets emerge from the nozzles of the second nozzle strip is preferably 30 to 60 bar
  • the pressure at which the water jets emerge from the nozzles of the third nozzle strip is preferably 60 to 80 bar.
  • the water jets in the second drum emerge from a plurality of nozzle strips, with each nozzle strip in the second drum comprising a plurality of nozzles, with the water jets emerging from each nozzle belonging to the same nozzle strip with the same pressure and with the pressures of the water jets, which emerge from nozzles belonging to different nozzle strips, can be the same or different and are each between 30 and 100 bar, preferably between 60 and 100 bar, more preferably between 90 and 100 bar.
  • the second drum has a nub structure, in particular a 2D nub structure, in order to achieve an embossing of the cloth product, which results in improved sliding properties.
  • the core layer and optionally one or more further layers are connected to one another and that multi-layer cloth product is obtained.
  • This is then optionally dried at temperatures above 150 °C, in particular at temperatures above 170 °C and particularly preferably at temperatures between 175 and 200 °C.
  • the drying step preferably takes place in a multi-drum dryer in which the multi-layer cloth product is not only dried but also pressed.
  • the drying step can also include the application of ultrasound to the cloth product, which is dried by the resulting kinetic energy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)

Abstract

L'invention concerne un procédé de production d'un produit en tissu multicouche qui comprend au moins une couche de nettoyage et une couche centrale, chacune contenant de la cellulose et/ou étant constituée entièrement de fibres naturelles et/ou de fibres régénérées, la couche de nettoyage et la couche centrale étant liées l'une à l'autre par hydro-enchevêtrement.
PCT/EP2023/072187 2022-08-17 2023-08-10 Procédé de fabrication d'un produit en tissu multicouche WO2024037967A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380059658.7A CN119730765A (zh) 2022-08-17 2023-08-10 用于生产多层布制品的方法
EP23757567.5A EP4572649A1 (fr) 2022-08-17 2023-08-10 Procédé de fabrication d'un produit en tissu multicouche

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/DE2022/100611 WO2023025351A1 (fr) 2021-08-25 2022-08-17 Tissu pour balayage de sol multi-pli jetable ayant une bande abrasive
DEPCT/DE2022/100611 2022-08-17

Publications (1)

Publication Number Publication Date
WO2024037967A1 true WO2024037967A1 (fr) 2024-02-22

Family

ID=87747764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/072187 WO2024037967A1 (fr) 2022-08-17 2023-08-10 Procédé de fabrication d'un produit en tissu multicouche

Country Status (3)

Country Link
EP (1) EP4572649A1 (fr)
CN (1) CN119730765A (fr)
WO (1) WO2024037967A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023131186A1 (de) 2023-11-09 2025-05-15 Dr. Schumacher Gmbh Verfahren zur Herstellung von mit Tränkungsmittel getränkten Tuchprodukten
DE102023131066A1 (de) 2023-11-09 2025-05-15 Dr. Schumacher Gmbh Verfahren zur Verfestigung und/oder Verbindung von Fasern oder Vliesstoffen

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WO2002036339A2 (fr) 2000-11-01 2002-05-10 The Procter & Gamble Company Substrat multicouche pour lingette humide capable d'une liberation controlee de liquide
EP1212478A1 (fr) 1999-05-27 2002-06-12 Foss Manufacturing Co., Inc. Fibre et produits fibreux antimicrobiens
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WO2018017597A1 (fr) 2016-07-18 2018-01-25 Naturezway, Inc. Tampon d'essuyage humide compostable et biodégradable permettant de nettoyer les têtes de balai-éponge
WO2021170610A1 (fr) * 2020-02-24 2021-09-02 Lenzing Aktiengesellschaft Non-tissé composite et procédé permettant de produire un non-tissé composite
DE102021122041B3 (de) 2021-08-25 2022-11-03 Dr. Schumacher Gmbh Mehrlagiges Einweg-Bodenwischtuch mit abrasivem Streifen

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Publication number Priority date Publication date Assignee Title
US4298649A (en) 1980-01-07 1981-11-03 Kimberly-Clark Corporation Nonwoven disposable wiper
EP1212478A1 (fr) 1999-05-27 2002-06-12 Foss Manufacturing Co., Inc. Fibre et produits fibreux antimicrobiens
EP1250413A2 (fr) * 2000-01-21 2002-10-23 Kao Corporation Lingettes de nettoyage pour les sols
WO2002036339A2 (fr) 2000-11-01 2002-05-10 The Procter & Gamble Company Substrat multicouche pour lingette humide capable d'une liberation controlee de liquide
WO2018017597A1 (fr) 2016-07-18 2018-01-25 Naturezway, Inc. Tampon d'essuyage humide compostable et biodégradable permettant de nettoyer les têtes de balai-éponge
WO2021170610A1 (fr) * 2020-02-24 2021-09-02 Lenzing Aktiengesellschaft Non-tissé composite et procédé permettant de produire un non-tissé composite
DE102021122041B3 (de) 2021-08-25 2022-11-03 Dr. Schumacher Gmbh Mehrlagiges Einweg-Bodenwischtuch mit abrasivem Streifen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023131186A1 (de) 2023-11-09 2025-05-15 Dr. Schumacher Gmbh Verfahren zur Herstellung von mit Tränkungsmittel getränkten Tuchprodukten
DE102023131066A1 (de) 2023-11-09 2025-05-15 Dr. Schumacher Gmbh Verfahren zur Verfestigung und/oder Verbindung von Fasern oder Vliesstoffen

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