EP1126065A2 - Non-tissé monocouche abrasif double face et son procédé de fabrication - Google Patents

Non-tissé monocouche abrasif double face et son procédé de fabrication Download PDF

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Publication number
EP1126065A2
EP1126065A2 EP01102686A EP01102686A EP1126065A2 EP 1126065 A2 EP1126065 A2 EP 1126065A2 EP 01102686 A EP01102686 A EP 01102686A EP 01102686 A EP01102686 A EP 01102686A EP 1126065 A2 EP1126065 A2 EP 1126065A2
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EP
European Patent Office
Prior art keywords
mixture
abrasive
polymers
fleece
polymer
Prior art date
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EP01102686A
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German (de)
English (en)
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EP1126065B1 (fr
EP1126065A3 (fr
Inventor
Martin Büchsel
Jean Martin Brink
Jean Marc Dellenbach
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Schoeller und Hoesch GmbH
Glatfelter Gernsbach GmbH and Co KG
Original Assignee
Papierfabrik Schoeller and Hoesch GmbH and Co KG
Schoeller und Hoesch GmbH
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Publication of EP1126065A3 publication Critical patent/EP1126065A3/fr
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/724—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a single-layer abrasive fleece, a method for producing the same and the use of such a single-layer abrasive fleece.
  • the invention Nonwoven shows in comparison to the nonwovens of the prior art with simple production improved properties with regard to abrasiveness, potency storage behavior and Variation of its properties.
  • the dried polymer granules are removed from the storage container (12) transported into an extruder (13), in which it is heated up to the necessary temperature and melted, which is necessary for fiber formation and the respective polymer depends.
  • the molten polymer then reaches the meltblown nozzle (14).
  • the polymer flows through these openings and becomes formed into fibers depending on the hole diameter.
  • the fibers (15) are directly below the nozzle is caught by a strong air current, torn into different lengths and opened a suction roll (17) deposited.
  • the diameter of the fibers is approx. 0.3 - 20.0 ⁇ m depending on polymer used and other polymer and process parameters.
  • the still warm fibers merge into a fleece.
  • the filing takes place in different statistically distributed lengths, Thicknesses and directions. Then the material, which has since cooled, is placed on a Winder (18) rolled up.
  • Nonwovens produced using this technology can be characterized by their softness, high absorbency, Characterize good air permeability and low resistance to abrasion.
  • Typical areas of application for such meltblown nonwovens are, for example, filter media, Wipes or oil absorbent materials.
  • the abrasive fabric described in this patent is a two-layer fleece which consists of a carrier layer and an abrasive meltblown layer which have been thermally bonded to one another.
  • the weight per unit area of the abrasive meltblown layer is given as values between 5 and 25 g / m 2 , and the average fiber diameter of the fibers forming the meltblown layer is at least 40 ⁇ m.
  • a spunbond made of polypropylene is normally used as the backing layer. The strength and elongation required for using the fabric produced, as well as the absorption capacity for an impregnation solution, are provided by the carrier layer.
  • meltblown layer of the fleece described in this patent is limited only to the provision of rough fibers.
  • a special embodiment of this invention is a three-layer abrasive cloth (meltblown layer / spunbonded fabric / meltblown layer), in which both outer surfaces consist of an abrasive meltblown layer.
  • WO 97/21865 (Annis et al.) Describes a wet fleece which has a single layer surface, abrasive produced by thermal coagulation of thermoplastic fibers Layer.
  • the disadvantage of this method is the insufficient strength in the Stress, as well as the observed gradient of the melt fibers. Therefore this shows Wet fleece only has an abrasive effect on one side.
  • the object of the present invention is therefore to provide a single-layer fleece which good abrasive properties on both sides, good drink storage behavior, good strength and Elongation properties combined with simple production.
  • the present invention also relates to a method for producing a such a single-layer, abrasive fleece according to claim 11. Preferred Embodiments of this method are described in subclaims 12 to 15.
  • single-ply can be used on both sides Produce abrasive nonwovens, in which additional polymers and if necessary, the phenomenon of subsequent embrittlement thicker from additives Meltblown fibers further improved and - if desired - higher strength and Strain values can be achieved.
  • These other polymers can be, for example, polyethylene, polyethylene / polypropylene copolymer or a polypropylene block polymer with a proportion (usually 30% or less, based on the polypropylene block polymer) of a rubber phase, which consists of equal parts of ethylene and propylene.
  • polymers are usually preferred to the blends in amounts of 0.1 to 20% by weight 0.2 to 10% by weight, in particular 0.5 to 8% by weight, in each case based on the weight added to the entire mixture.
  • additives such as alkylbenzenesulfonates, Alkane sulfonates, fatty alcohol sulfonates, fatty alcohol ether sulfates, ⁇ -olefin sulfonates, ⁇ -ester sulfonates, Alkyl phosphates, alkyl ether phosphates, fur alcohol ethoxylates, alkylphenol ethoxylates, Fatty amine ethoxylates, fatty acid ethoxylates, fatty acid ester ethoxylates, alkoxylates, alkanolamides, Sugar surfactants, amine oxides, cationic surfactants and amphoteric surfactants, in particular nonionic fluorocarbon surfactants, and / or primary and secondary antioxidants such as sterically hindered phenols, sulfides, polysulfides, dithiocarbamates, phosphites, phosphonites, Use diphosphonites
  • the additives are usually added to the mixtures in amounts of 0.01 to 15% by weight, preferably 0.01 to 10% by weight, in particular in amounts of 0.1 to 5% by weight, in each case based on the weight of the entire mixture added.
  • the additives and / or polymers can the mixtures before entering the extruder can be mixed in or the individual components (i.e. the different polymers) are fed into the extruder together with the additives as individual components.
  • the Additives can also be sprayed onto the fibers after the spinning process.
  • Important process parameters in this context are the following: extruder temperature, Temperature of the melt, temperature of the nozzle bar, throughput of the melt and pressure, Air temperature, air volume, design of the nozzle bar, distance of the nozzle bar from Collector, negative pressure in the collector, speed of the collector, basis weight of the resulting fleece and treatment with aerosol-like water, which if necessary Contains additives.
  • thick and thin fibers additionally through the choice of suitable polymer parameters, through the selection of suitable polymer types and, if appropriate, the polymer mixture, and if necessary, spin off simultaneously by using certain additives.
  • melt index of the polymer i.e. linear, branched, cross-linked, random copolymer, block polymer, etc.
  • molecular weight i.e. linear, branched, cross-linked, random copolymer, block polymer, etc.
  • melt index is a measure of the melt viscosity at a specified level Temperature of thermoplastic polymers and specifies the amount of material used in 10 Minutes under the action of a certain force at a fixed temperature by a defined nozzle runs through.
  • the MFI is therefore also a rough indicator of that Molecular weight and the molecular weight distribution.
  • Bugada points out in her Article "Optimizing polymer properties for process and product performance", published in Nonwovens World, August-September 1999, p. 89ff indicate that with almost identical MFIs the molecular weight can vary significantly and vice versa.
  • fiber properties for example, by mixing polymers different melt indices can also be controlled individually.
  • a mixture of micro and macro fibers according to the above definition It is therefore to produce simultaneously with an extruder and a nozzle bar required, for example polymers of different melt indices, different Molecular structure, different molecular weight and / or different Molecular weight distribution in the extruder to melt without resulting sets uniform viscosity. It must be ensured that the two viscosities in remain essentially unchanged.
  • Starting materials used polymers that are already pre-degraded. If polymers that Contain peroxide compounds as components of the to be used according to the invention Mixtures used may have a tendency to approximate in some cases Viscosities are observed.
  • the various are suitable as polymers which can be used according to the invention
  • Types of the polyolefins, polyesters, polyamides, polyesteramides and copolymers thereof for example polyethylene, polypropylene, polybutylene, nylon, ethylene / vinyl acetate copolymers, Ethylene / propylene copolymers or polyvinyl chloride.
  • the polymers mentioned can either be as a homopolymer or as a mixture of different Extrude polymers (copolymers).
  • mixtures preferably used according to the invention are a mixture of polypropylene a melt index of 450 and a polypropylene block polymer of a melt index of 100, a mixture of peroxidically degraded polypropylene with a melt index of 1400 and a polypropylene block polymer having a melt index of 100, a blend of polypropylene a melt index of 450 and polypropylene a melt index of 1200 and a Mixture of polypropylene with a melt index of 450 and polypropylene with a melt index from 800.
  • polymers with a melt index (MFR) in a range are usually used between 25 and 1800 g / 10 min, preferably in a range from 50 to 1600 g / 10 min, in particular in a range from 100 to 1400 g / 10 min, the Mixing ratios of the polymers in a wide range in a range of 5-95% / 95-5%, preferably in a range of 5-80% / 95-20%, in particular in a range of 5-40% / 95-60%, each based on a mixture of lower polymer Melt index / polymer with higher melt index can be varied.
  • MFR melt index
  • the melting indices in the polymers used according to the invention have the parameter Melt index is selected to simultaneously thick and thin fibers using the meltblown process spinning, usually a difference of at least 50 units (g / 10 min), preferably 100 units and in particular 300 units.
  • the weight-average molecular weight Mw of the polymers which can be used according to the invention is preferably in a range of 50,000 and 200,000 g / mol, in particular in a range from 70,000 to 150,000 g / mol.
  • the physical ones are particularly important Properties such as breaking strength and elongation at break are important.
  • a suitable one Selection of the polymer mixture, e.g. by using a polyethylene / polypropylene copolymer, especially one with a polyethylene content of not more than 20%, where the ethylene is in a rubber phase, these properties of the Polypropylene can be greatly improved.
  • embrittlement of the nonwovens according to the invention can be done simultaneous excellent abrasiveness in the context of a preferred embodiment by using a copolymer in which the polyethylene is only in one Rubber phase is present, as the one polymer component of the mixture suppress, where the elongation at break is increased very much (greater than 20%).
  • a copolymer in which the polyethylene is only in one Rubber phase is present, as the one polymer component of the mixture suppress, where the elongation at break is increased very much (greater than 20%).
  • One in this context usable copolymer is, for example, a commercially available polypropylene block polymer with a low rubber phase, which consists of approx. 50% ethylene and propylene.
  • the fiber thickness of the microfibers is preferably in a range from 1 to 10 ⁇ m in a range from 2 to 8 ⁇ m, and in particular in a range from 3 to 7 ⁇ m.
  • the fiber thickness of the macro fibers is in a range from 15 to 80 ⁇ m, preferably in a range from 20 to 60 ⁇ m, and in particular in a range from 30 to 50 ⁇ m.
  • the numerical proportion of macro fibers in the invention Fleece, based on a unit area of the fleece, in a desirable manner is less than 50%, in particular less than 40%.
  • the polymer mixture When the polymer mixture is spun out, part of the sticky micro- or macro fibers stick together with neighboring fibers on the collector when forming the fleece, so that in addition to the micro and macro fibers also thicker fiber bundles in the fleece according to the invention may be present.
  • the formation of fiber bundles by using polymers with more similar properties i.e. for example polymers with little different Melting indices, is favored.
  • the formation of Fiber bundles through the use of a copolymer, such as the above Copolymer in which the ethylene is only in the rubber phase is favored.
  • the thickness of these fiber bundles can usually be between 50 and 300 ⁇ m, preferably between 70 and 200 microns, in particular between 80 and 150 microns.
  • Fleece accounts for more than 10% of the total fibers Fiber bundles is desirable.
  • Such a process can be observed, for example, especially in cases when a Mixture of a polypropylene with a higher melt index and a copolymer with a lower melt index, e.g. less than 25% of the melt index of the used Polypropylene is used.
  • additives can the polymer mixtures used in the invention in amounts of 0.01 to 15% by weight, preferably in amounts of 0.01 to 10% by weight, in particular 0.1 up to 5% by weight, based in each case on the weight of the polymer mixture.
  • the abrasive fleece according to the invention usually has a basis weight of 15 to 150 g / m 2 , preferably a basis weight of 25 to 80 g / m 2 .
  • the breaking strength and elongation at break of pure polyolefin products deteriorate after production clearly.
  • This behavior is due to the use of the invention polymer mixtures used have been improved so far that the ultimate breaking strength of the abrasive fleece according to the invention usually at least in the machine direction (MD) 10 N / 50 mm, preferably at least 15 N / 50 mm, and transverse to the machine direction (CD) is usually at least 5 N / 50 mm, preferably 10 N / 50 mm.
  • the elongation at break of the abrasive fleece according to the invention is usually over 10%, preferably over 20% in both MD and CD.
  • the elongation at break improves when the fleece is moistened with the potions.
  • the drinking capacity and the drinking absorption are strong on the fiber diameter resulting pore size distribution, fleece density and surface chemical Properties of the fleece determined.
  • a defined area is usually dry balanced, then soaked in a test pot, easily expressed and weighed wet.
  • the Weight of the drinking pot taken which is the difference between the two measured values calculated, is set in relation to the weight per unit area and gives the drink intake in Percent.
  • the water absorption of the abrasive fleece according to the invention is usually between 100 and 700 dry weight percent, preferably between 100 and 500 Dry weight percent.
  • the fiber diameter of the fibers occurring in the abrasive fleece according to the invention can be determined by scanning electron microscopic (SEM) examination.
  • the pore size can be determined by means of a porosimeter, which mercury with increasing pressure in the non-woven pores. From the pressure curve the number of pores, Pore size distribution and the total pore volume can be derived. Quality Drinking water storage was achieved with nonwovens according to the invention, in which the Porosity of pores smaller than 60 ⁇ m in diameter, usually more than 50%, preferably more than 70%.
  • Figure 2 shows a pore size distribution of a abrasive fleece according to the invention according to Example 2 below.
  • the drinking capacity is confirmed by a storage test. Doing so will have multiple stacks of 30 individual sheets of an abrasive nonwoven according to the invention according to the following Example 2 moistened with a certain amount of a defined potions. Then from the Scrolling through a stack determines the amount of drink taken, which results in a drink profile leads within the stack. Furthermore, further stacks of the same are made according to the invention The fleece is stored in tight packaging for one month at room temperature and at 40 ° C. Then, like in the first batch, the drinking profile is measured in the batches (see Figure 3).
  • the two profiles of the stored stacks run almost only with a very small slope horizontal and remain parallel.
  • the downward shift of the curves shows the evaporation of the drinker due to the sealed packaging, especially at 40 ° C.
  • the top leaves in the Stacks lose little potions and give them to the bottom leaves. These can Store excess quantities without any problems, the package stays dry.
  • the potions shift stably in the observed state, since the first measurement taken a few days after Production has been carried out, the slight change can be observed.
  • the abrasive fleece according to the invention can therefore also be in one pack over a long period of time be stored evenly moist in the entire stack without the cloths lying on top dry out while potions that have run out of the towels accumulate on the bottom of the pack. This could be achieved by the abrasive fleece according to the invention.
  • the fleece according to the invention can be melt blown, as stated above Production in one step with only one extruder for the polymers and with only one nozzle bar that has only one size spinneret by using one Prepare a mixture of polymers with different properties.
  • the polymers used and any additives used can be introduced into the extruder in the desired mixing ratio from a metering device.
  • There the mixture is prepared according to a suitable temperature profile (this is known to the person skilled in the relevant art or can easily be determined by routine experiments) and usually leaves the extruder at a temperature between 180 and 300 ° C.
  • a pump delivers the melt to the nozzle bar at a throughput that is usually at least 50 kg / h.
  • the distance between the collector and the nozzle bar is usually between 25 and 50 cm.
  • the speed of the collector depends on the desired basis weight of the fleece for a given throughput of the melt and a given width of the nozzle bar used.
  • the temperature of the hot compressed air usually used is usually between 270 and 320 ° C depending on the polymer mixture used and any additives added.
  • the air throughput like the air temperature, varies between 250 and 500 m 3 / h, depending on the polymer mixture used and any additives added.
  • the abrasive fleece according to the invention is particularly suitable for Cleaning of dirty surfaces eg for hand cleaning, for cleaning
  • meltblown line with only one extruder was used so that all polymers and any additives used together in melted in an extruder and spun through a die bar.
  • the breaking force achieved is 22 N / 50mm in the machine direction and 12 N / 50mm in the cross machine direction.
  • the elongation at break is just under 50% in the machine direction and just over 50% across the machine direction.
  • An abrasive fleece with a basis weight of 45 g / m 2 was made from a mixture of 80% isotactic polypropylene, which contains no residual peroxide and has a melt index of 450 g / 10 min, and 20% polypropylene block polymer, as was also the case in Example 1 was used, produced at 233 ° C temperature of the melt (see. Example 1).
  • a hydrophilizing agent (a commercially available nonionic fluorochemical surfactant) was sprayed onto the fibers in an amount of ... after the spinning process.
  • the breaking strength achieved is 17 N / 50mm in the machine direction and 13 N / 50mm in the cross machine direction.
  • the elongation at break is almost 45% in the machine direction and over 70% in the cross machine direction.
  • An abrasive fleece with a basis weight of 45 g / m 2 was made from a mixture of 79% isotactic polypropylene, which contains no residual peroxide and has a melt index of 450 g / 10 min, 20% polypropylene block polymer with a 10% rubber phase and a melt index of 100 g / 10 min (as described in Example 1), and 1% of a hydrophilizing agent, which consists of a commercially available nonionic fluorochemical surfactant, at 233 ° C. temperature of the melt.
  • the breaking force achieved is 18 N / 50mm in the machine direction and 13 N / 50mm crosswise to the machine direction.
  • the elongation at break is almost 80% in the machine direction and over 90% crosswise to the machine direction.
  • Examples 1 to 3 show that the addition of hydrophilizing agents has an elongation at break influence positively. At the same time, they reduce the surface energy of the fleece and enable an improved drinking ability.
  • An abrasive fleece with a basis weight of 47.5 g / m 2 was made from a mixture of 80% isotactic polypropylene, which contains peroxide and has a melt index of 1,400 g / 10 min, and 20% polypropylene block polymer with a 10% rubber phase a melt index of 100 g / 10 min (see. Example 1) at 233 ° C temperature of the melt.
  • a commercial nonionic fluorochemical surfactant was sprayed onto the fibers in an amount of ... after the spinning process.
  • the breaking force achieved is 17 N / 50mm in the machine direction and 14 N / 50mm in the cross machine direction.
  • the elongation at break is almost 45% in the machine direction and over 35% in the cross machine direction.
  • An abrasive fleece with a basis weight of 39 g / m 2 was produced according to the prior art from an isotactic polypropylene with a melt index of 450 g / 10 min at 253 ° C. temperature of the melt.
  • a commercial nonionic fluorochemical surfactant was sprayed onto the fibers in an amount of ... after the spinning process.
  • the breaking strength achieved is 13.5 N / 50 mm in the machine direction and 10 N / 50 mm crosswise to the machine direction.
  • the elongation at break is just under 20% in the machine direction and over 30% across the machine direction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Materials For Medical Uses (AREA)
EP01102686A 2000-02-08 2001-02-07 Non-tissé monocouche abrasif double face et son procédé de fabrication Expired - Lifetime EP1126065B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10005454 2000-02-08
DE10005454A DE10005454B4 (de) 2000-02-08 2000-02-08 Einlagiges, beidseitig abrasives Vlies und Verfahren zu dessen Herstellung

Publications (3)

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EP1126065A2 true EP1126065A2 (fr) 2001-08-22
EP1126065A3 EP1126065A3 (fr) 2005-10-19
EP1126065B1 EP1126065B1 (fr) 2010-04-14

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EP (1) EP1126065B1 (fr)
AT (1) ATE464413T1 (fr)
DE (2) DE10005454B4 (fr)
ES (1) ES2342653T3 (fr)

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EP1602359A1 (fr) * 2004-06-02 2005-12-07 Beiersdorf AG Lingettes imprégnées cosmétiques ou dermatologiques
CN102797113A (zh) * 2012-08-09 2012-11-28 深圳市中纺滤材无纺布有限公司 一种无纺布湿帘的生产方法及无纺布湿帘
CN103552326A (zh) * 2013-10-28 2014-02-05 深圳市中纺滤材无纺布有限公司 一种具有杀菌除臭去甲醛作用的多功能湿帘及其加工方法
CN110234804A (zh) * 2017-01-27 2019-09-13 东丽株式会社 纺粘无纺布
CN114318675A (zh) * 2021-12-31 2022-04-12 阳光卫生医疗科技江阴有限公司 一种高清洁力百洁布及制备方法

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DE20307343U1 (de) 2003-05-10 2003-07-31 Nölken Hygiene Products GmbH, 53578 Windhagen Gesichtsreinigungstuch
AU2010330866A1 (en) * 2009-12-17 2012-07-12 3M Innovative Properties Company Dimensionally stable nonwoven fibrous webs, melt blown fine fibers, and methods of making and using the same
MX347302B (es) 2009-12-17 2017-04-21 3M Innovative Properties Company * Telas fibrosas no tejidas dimensionalmente estables y metodos para fabricar y utilizar las mismas.
CN103696130A (zh) * 2013-11-25 2014-04-02 芜湖跃飞新型吸音材料股份有限公司 一种环保无纺布吸音棉及其制备方法

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602359A1 (fr) * 2004-06-02 2005-12-07 Beiersdorf AG Lingettes imprégnées cosmétiques ou dermatologiques
CN102797113A (zh) * 2012-08-09 2012-11-28 深圳市中纺滤材无纺布有限公司 一种无纺布湿帘的生产方法及无纺布湿帘
CN103552326A (zh) * 2013-10-28 2014-02-05 深圳市中纺滤材无纺布有限公司 一种具有杀菌除臭去甲醛作用的多功能湿帘及其加工方法
CN103552326B (zh) * 2013-10-28 2015-11-04 深圳市中纺滤材无纺布有限公司 一种具有杀菌除臭去甲醛作用的多功能湿帘及其加工方法
CN110234804A (zh) * 2017-01-27 2019-09-13 东丽株式会社 纺粘无纺布
EP3575467A4 (fr) * 2017-01-27 2020-03-18 Toray Industries, Inc. Tissu non tissé filé-lié
US11124907B2 (en) 2017-01-27 2021-09-21 Toray Industries Inc. Spun-bonded nonwoven fabric
CN114318675A (zh) * 2021-12-31 2022-04-12 阳光卫生医疗科技江阴有限公司 一种高清洁力百洁布及制备方法

Also Published As

Publication number Publication date
DE10005454B4 (de) 2005-08-18
DE50115430D1 (de) 2010-05-27
EP1126065B1 (fr) 2010-04-14
EP1126065A3 (fr) 2005-10-19
ATE464413T1 (de) 2010-04-15
DE10005454A1 (de) 2001-08-16
ES2342653T3 (es) 2010-07-12

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