EP3784827A1 - Nonwoven molded article - Google Patents
Nonwoven molded articleInfo
- Publication number
- EP3784827A1 EP3784827A1 EP19715835.5A EP19715835A EP3784827A1 EP 3784827 A1 EP3784827 A1 EP 3784827A1 EP 19715835 A EP19715835 A EP 19715835A EP 3784827 A1 EP3784827 A1 EP 3784827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nonwoven
- polyethylene terephthalate
- fibers
- binder fibers
- bicomponent binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 claims abstract description 90
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 47
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 47
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 41
- 238000002844 melting Methods 0.000 claims description 36
- 230000008018 melting Effects 0.000 claims description 36
- 238000000465 moulding Methods 0.000 claims description 32
- 239000011230 binding agent Substances 0.000 claims description 24
- 239000004745 nonwoven fabric Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 20
- 239000011257 shell material Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000203 mixture Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000000113 differential scanning calorimetry Methods 0.000 description 8
- 229920006308 Indorama Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical class FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012510 hollow fiber Substances 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000368779 Asota Species 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- 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
- D04H1/558—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 in combination with mechanical or physical treatments other than embossing
-
- 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
- D04H1/48—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 in combination with at least one other method of consolidation
- D04H1/485—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 in combination with at least one other method of consolidation in combination with weld-bonding
-
- 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
- D04H1/43825—Composite fibres
- D04H1/43828—Composite fibres sheath-core
-
- 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
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
-
- 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
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/161—Mud-guards made of non-conventional material, e.g. rubber, plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/02—Streamlining the undersurfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Definitions
- the invention is directed to a nonwoven molded article, in particular for covering vehicle floor regions or for wheel arches of motor vehicles, comprising at least one thermally deformed nonwoven fabric formed from structuring polyethylene terephthalate fibers and matrix-forming polyethylene terephthalate-containing bicomponent binder fibers.
- the invention is directed to a method for producing such a nonwoven molded article and to its use.
- Fibrous nonwoven moldings used in automobiles in automobiles are composites formed of structuring fiber components and matrix-forming fiber components. These fibers are usually laid in the form of a nonwoven and then brought in an optional multi-step thermal molding process in the desired shape, in particular pressed.
- Such non-woven fabric parts are used for example as Radlaufschalen, underbody panels, trunk side walls and hat racks use in motor vehicles.
- Such formed from fiber (nonwoven) moldings Radlaufschalen are known for example from DE 20 2005 015 164 U1.
- the wheel wells described therein have a low heat resistance of about 90 ° C, in addition they have a relatively high water absorption and thus have a delayed release of water. Also, they have a relatively easy flammability.
- the invention is therefore based on the object to provide a fiber (nonwoven) molding, which overcomes the disadvantages described above.
- the inventors of the present invention have achieved this object by forming at least one thermally deformed nonwoven fabric
- the object is achieved by a method for producing a nonwoven molded article according to the present invention, comprising the steps: i) laying at least one nonwoven fabric by means of a carded crosslapper method or an aerodynamic nonwoven forming method, ii) subsequently needling the nonwoven fabric or webs formed in this way ( s) as well
- the object is also achieved by the use of the nonwoven molding according to the present invention as a wheel arch liner, underbody panel, trunk side wall or parcel shelf.
- the present invention relates to:
- nonwoven molded part in particular for covering vehicle floor areas or for wheel arches of motor vehicles, comprising or consisting of at least one thermally deformed fiber fleece formed from
- Binder fibers comprising a semicrystalline shell material having a melting range of 90 to 175 ° C;
- Bicomponent binder fibers having a semi-crystalline shell material and different from the bicomponent binder fibers B);
- Nonwoven molding according to aspect 1 characterized in that the polyethylene terephthalate fibers A) have a melting point of 220 to 265 ° C, preferably 240 to 260 ° C, more preferably 242 to 250 ° C and / or
- a Eink Hurselung of 1, 5 to 10.0 sheets / cm preferably a Eink Hurselung of 2.5 to 5.5 sheets / cm, more preferably a crimp of 2.7 to 3.7 sheets / cm and / or have
- a tear strength of 2.0 to 5.0 cN / dtex preferably a tear strength of 2.5 to 4.7 cN / dtex, more preferably a tear strength of 2.7 to 4.0 cN / dtex, measured according to DIN EN ISO 5079: 1996-02.
- Nonwoven molded article according to aspect 1 or 2 characterized in that the polyethylene terephthalate-containing bicomponent binder fibers B)
- a crimp of 2.0 to 10.0 sheets / cm preferably a crimp of 3.0 to 5.0 sheets / cm and / or have a tear strength of 1.0 to 4.0 cN / dtex, preferably a tear strength of 1.5 to 3.5 cN / dtex, more preferably a tear strength of 1.8 to 3.25 cN / dtex, measured according to DIN EN ISO 5079: 1996-02.
- Nonwoven molding according to one of the preceding aspects characterized in that the polyethylene terephthalate-containing bicomponent binder fibers B) have a core of polyethylene terephthalate or polyester, in particular having a melting point of 220 to 265 ° C, preferably 240 to 260 ° C, more preferably 250 up to 255 ° C and / or the polyethylene terephthalate-containing bicomponent binder fibers B) have a shell material with a melting range of 90 to 175 ° C, preferably 100 to 160 ° C, more preferably 110 to 155 ° C or 130 to 160 ° C, in particular, at least one melting peak, in particular preferably two melting peaks, is present in the region; most preferably, a melting peak, which is most preferably a melting point, is at 150 to 160 ° C, especially 155 ° C.
- nonwoven molding according to one of the preceding aspects, characterized in that the proportion of the core in the polyethylene terephthalate-containing bicomponent binder fibers B) and / or C) each 50 to 70% by weight, preferably 60 wt .-% and the proportion of the shell in each case 30 to 50% by weight, preferably 40 wt .-%, based on the total weight of the fiber.
- nonwoven molding according to any one of the preceding aspects, characterized in that the nonwoven molding further contains at least one polar compound which is oleophobic, in particular a fluorinated or perfluorinated hydrocarbon compound preferably having 3 to 15 carbon atoms, more preferably 4 to 14 carbon atoms, the polar compound being preferred Component of the structure-forming polyethylene terephthalate fibers A) and / or the matrix-forming, polyethylene terephthalate-containing
- Bicomponent binder fibers B) and / or C) can be introduced into the nonwoven shaped part, particularly preferably by the structure-forming polyethylene terephthalate fibers Aj.
- the polyethylene terephthalate-containing bicomponent binder fibers C) have a shell material with a melting range of 95 to 200 ° C, in particular in the range at least one melting peak, particularly preferably only one melting peak, is present; most preferably, a melting peak is at 175 to 200 ° C, especially 180 ° C to 185 ° C, most preferably 180 ° C and / or
- Nonwoven molding according to one of the preceding aspects, characterized in that the fibers are present in the following parts by weight
- Nonwoven molded part characterized in that a plurality of nonwoven fabrics are arranged one above the other to form a multilayer nonwoven shaped article in stacking position.
- Nonwoven molded part according to one of the preceding aspects, characterized in that it forms a textile wheel arch.
- thermoplastic thermoplastic deformation of the fiber or nonwoven fabric (s) to the desired nonwoven shaped article.
- step iv) to a temperature of 200 to 240 ° C, preferably 210 to 230 ° C, in particular 220 ° C, is heated, more preferably at a heating time of 40 bis 80 seconds.
- step v) takes place at a temperature of 7 to 15 ° C and preferably at a heating time of 30 to 70 seconds.
- melting and softening ranges, melting and softening points are determined by differential scanning calorimetry (DSC) according to DIN EN ISO 11357-3: 2013-04.
- DSC differential scanning calorimetry
- the materials of the sheath material (also referred to as sheath in the present invention) of the bicomponent binder fibers B) and C) of the present invention each have specific melting ranges. This is understood to mean that the maximum of the peaks of the respective melting and / or softening points (referred to as melting peaks in the context of the present invention), in the DSC-determined curve, are in this range
- the structuring polyethylene terephthalate fibers A) can be both solid fibers and hollow fibers.
- the hollow fibers have the same diameter less weight than solid fibers, but are due to their design as a hollow body but with sufficient, in particular the stiffness relevant strength values. Through the use of hollow fibers, lighter fiber fabric moldings can thus be produced while still providing adequate, in particular undiminished, inherent stiffness values.
- the matrix-forming polyethylene terephthalate-containing bicomponent binding fibers B which have a semi-crystalline shell material, preferably have the abovementioned properties.
- the shell material is preferably a thermoplastic material, more preferably a hot melt adhesive.
- the fibers A) and B) and optionally C) are present in a respective fiber mixture.
- These fibers B) and C) have, at least in their respective sheath region, a lower melting and / or softening range than the fibers A), so that they form bonding points or bonding regions on the contact surfaces to the other fibers upon contact with other fibers.
- the mixture of different fiber types can be adapted to the respective application and the required properties of a particular fiber fleece become. It is advantageous here if the weight fraction of fibers A) is greater than or at least equal to the weight fraction of fibers B) or fibers B) and C).
- non-woven fabric part Due to the special mixture of the fibers A) and B) or A) to C), it is possible to obtain a non-woven fabric part, which is characterized by a reduced water absorption, in particular water wicking ⁇ 5 mm, a rapid water release, and a low component weight.
- the non-woven fabric part is dimensionally stable at about 12 ° C continuous heat exposure and weather resistant.
- the requirements for flame retardance SE / NBR for passenger cars, trucks, buses, land vehicles and vehicles can generally be met.
- the fibrous nonwoven molding contains at least one polar compound which is oleophobic, the surface tension of the component is changed so that an advantageous repellent effect is formed on the surface of the nonwoven fabric compared to media such as water, dirt and ice.
- polar oleophobic compounds are suitable. These are in particular fluorinated or perfluorinated hydrocarbon compounds. Suitable compounds are disclosed, for example, in US 5,143,963, EP 1 000 184 A1 or US 4,767,545. Also suitable are fluorinated or perfluorinated hydrocarbon compound preferably having 3 to 15 carbon atoms, more preferably 4 to 14 carbon atoms.
- the polar, oleophobic compounds are preferably present in 0.00001 to 5 wt .-%, preferably 0.001 to 2.5 wt .-%, more preferably 0.01 to 1 wt .-%, based on the total weight of the nonwoven molded article ,
- additives selected from pigments, dyes, antioxidants, process auxiliaries or antistatic agents.
- the nonwoven moldings of the present invention preferably have a greatly reduced basis weight by stretching at the deepest spatial point of deformation, exemplified varying in the longitudinal direction of 1310/530/1410 g / m 2 , and / or varying in transverse direction from 1440/480/1470 g / m 2 . Further, it is preferred that they have a thickness in the longitudinal direction varying from 2.34 / 1, 32 / 2.36 mm and / or a thickness in the transverse direction varying from 2.36 / 1, 33/2, 35 mm.
- the bulk density in the longitudinal direction is 559.8 / 401.5 / 597.5 kg / m 3 and / or the bulk density in the transverse direction is 610.2 / 360.9 / 625 kg / m 3 .
- the density is calculated as the quotient of basis weight / thickness.
- the wheel arch liner can preferably be constructed as described in DE 20 2005 015 164 U1, the nonwoven fabric of the present invention replacing the nonwoven fabric disclosed in this publication.
- a particularly advantageous method is according to embodiment of the invention finally in that the nonwoven molded part by laying at least one, preferably cross-laid, nonwoven fabric by means of a carding cross-stacking process or an aerodynamic nonwoven forming process, then needlepunching or so formed fiber webs (s) and cutting, Heating and thermal, in particular thermoplastic, deformation of the fiber or non-woven fabric (s) is made to the desired non-woven fabric molded part.
- felting needles are preferably used, in particular felting needles of the type 15x16x36 3.5 "M332 G 53 037.
- PET PPS 0104079 from Wellman-Indorama is a PET fiber containing fluorocarbon compounds (fiber A).
- PET-Bico M 1439-wellbond from Wellman-Indorama which has a melting peak at about 110.6 ° C., a melting peak at about 154 ° C. (both sheaths) and a further melting peak at about 251, 1 ° C (core) in DSC and the core is polyethylene terephthalate (fiber B).
- composition of the nonwoven molding is composition of the nonwoven molding
- PET PPS 0104079 from Wellman-Indorama is a PET fiber containing fluorocarbon compounds (fiber A).
- PET-Bico M 1439-wellbond from Wellman-Indorama, which has a melting peak at about 110.6 ° C., a melting peak at about 154 ° C. (both sheaths) and a further melting peak at about 251, 1 ° C (core) in DSC and the core is polyethylene terephthalate (fiber B).
- PET-Bico HT PPS 0069718 from HUVIS which has a melting peak at about 182.3 ° C. (sheath) and another melting peak at about 252.1 ° C. (core) in the DSC (fiber C) ,
- PET is used as an abbreviation for polyethylene terephthalate.
- composition of the nonwoven molding is composition of the nonwoven molding
- PET PPS 0104079 Wellene from Wellman Indorama, a PET fiber containing fluorocarbon compounds.
- composition of the nonwoven molding is composition of the nonwoven molding
- the nonwoven fabric molded articles according to the present invention showed excellent results in the above-mentioned tests. Since the comparative examples have already failed the burning test and are thus not suitable for use as material for wheel arch liners in road traffic, no further tests were carried out.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018110246.1A DE102018110246B4 (en) | 2018-04-27 | 2018-04-27 | Nonwoven molded part |
PCT/EP2019/057104 WO2019206535A1 (en) | 2018-04-27 | 2019-03-21 | Nonwoven molded article |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3784827A1 true EP3784827A1 (en) | 2021-03-03 |
Family
ID=66049166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19715835.5A Pending EP3784827A1 (en) | 2018-04-27 | 2019-03-21 | Nonwoven molded article |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210115605A1 (en) |
EP (1) | EP3784827A1 (en) |
CN (1) | CN112105772B (en) |
DE (1) | DE102018110246B4 (en) |
WO (1) | WO2019206535A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4010227A1 (en) * | 2019-08-05 | 2022-06-15 | Formfleks Otomotiv Yan Sanayi ve Ticaret Anonim Sirketi | A composite component and the method of production of the said composite component |
DE102020114941A1 (en) | 2020-06-05 | 2021-12-09 | Audi Aktiengesellschaft | Method of manufacturing a wheel arch liner |
ES2897525B2 (en) * | 2021-10-08 | 2022-10-03 | Egana Arrieta Joseba | BAND FOR ITS JOINT TO A POLYESTER TEXTILE THAT IS FIXED ON A FRAME AND PROCEDURE FOR OBTAINING IT |
ES2957063A1 (en) * | 2022-05-30 | 2024-01-10 | Arrieta Joseba Egana | BAND FOR JOINNING TO A POLYESTER TEXTILE THAT IS FIXED ON A FRAME AND PROCEDURE FOR OBTAINING IT (Machine-translation by Google Translate, not legally binding) |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101836623B1 (en) * | 2016-04-26 | 2018-03-08 | 현대자동차주식회사 | Non-woven fabric board for exterior of automobile and method for manufacturing same |
WO2018098335A1 (en) * | 2016-11-22 | 2018-05-31 | Thrace-Linq, Inc. | Hydrophobic, anti-wicking non-woven material for liner or shield |
-
2018
- 2018-04-27 DE DE102018110246.1A patent/DE102018110246B4/en active Active
-
2019
- 2019-03-21 WO PCT/EP2019/057104 patent/WO2019206535A1/en active Application Filing
- 2019-03-21 US US17/050,471 patent/US20210115605A1/en not_active Abandoned
- 2019-03-21 CN CN201980028740.7A patent/CN112105772B/en active Active
- 2019-03-21 EP EP19715835.5A patent/EP3784827A1/en active Pending
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WO2019206535A1 (en) | 2019-10-31 |
CN112105772A (en) | 2020-12-18 |
CN112105772B (en) | 2023-01-24 |
DE102018110246A1 (en) | 2019-10-31 |
US20210115605A1 (en) | 2021-04-22 |
DE102018110246B4 (en) | 2020-12-31 |
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