EP2784203A1 - Non-woven fibrous fabric and production equipment therefor - Google Patents

Non-woven fibrous fabric and production equipment therefor Download PDF

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Publication number
EP2784203A1
EP2784203A1 EP20120851923 EP12851923A EP2784203A1 EP 2784203 A1 EP2784203 A1 EP 2784203A1 EP 20120851923 EP20120851923 EP 20120851923 EP 12851923 A EP12851923 A EP 12851923A EP 2784203 A1 EP2784203 A1 EP 2784203A1
Authority
EP
European Patent Office
Prior art keywords
receiver
fabric
nonwoven fabric
electrostatic
features
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.)
Withdrawn
Application number
EP20120851923
Other languages
German (de)
French (fr)
Other versions
EP2784203A4 (en
Inventor
Yedong YANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Santai Automotive Interior Materials Co
Original Assignee
Guangzhou Santai Automotive Interior Materials Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Santai Automotive Interior Materials Co filed Critical Guangzhou Santai Automotive Interior Materials Co
Publication of EP2784203A1 publication Critical patent/EP2784203A1/en
Publication of EP2784203A4 publication Critical patent/EP2784203A4/en
Withdrawn legal-status Critical Current

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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
    • D04H1/42—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
    • 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
    • D04H1/4391—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 characterised by the shape of the fibres
    • 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
    • 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
    • D04H1/728—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 by electro-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
    • D04H1/70—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
    • D04H1/736—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 characterised by the apparatus for arranging fibres
    • 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
    • D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition

Definitions

  • the invention relates to a kind of nonwoven fabric, especially relates to a kind of melt-blown nonwoven fabric in a V-shaped arrangement when it is observed from the longitudinal and vertical cross-sections, also relates to a V-shaped nonwoven fabric manufacturing apparatus.
  • Nonwoven products is common enough in everyday life, such as diapers, sanitary pads, rags, products in filter categories and so on, and a number of important performance of nonwoven products should be implemented through superfine fiber net, so the melt-blown quality of superfine fiber net is the difficult point of the nonwoven fabric machining.
  • the nonwoven fabric in the current technology is mainly melt-blown from polypropylene fiber filled with the air in high temperature and high pressure, then looked over the cross section of the product, the center part of the fiber is arranged in chaotic irregular form, so that it is difficult to gain desired bulkiness and uniformity, and the degree of filling is relatively low.
  • the invention aims to provide a kind of melt-blown nonwoven fabric in a V-shaped arrangement observed from its longitudinal and vertical cross-section.
  • the invention employs the following technical solution: a kind of nonwoven fabric, which contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids.
  • the light transmittance os such a fabric allows no more than 2% of change.
  • the geometric diameter of the directly-formed fabric allows no more than 10 ⁇ m.
  • the fabric has no more than 10cm in thickness, less than 50Kg/m 2 in density, and more than 100 MKS rayls in acoustic resistivity.
  • the invention aims to provide a manufacturing apparatus to produce V-shaped melt-blown nonwoven fabric.
  • a kind of nonwoven fabric manufacturing apparatus comprising a receiver, a carding machine located at the upper of the left side of the receiver and a screw extruder located at the upper of the right side of the receiver, also a spinneret plate connected to the bottom of the screw extruder, and a lapper between the carding machine and the receiver with an electrostatic generating device below the spinneret plate.
  • the electrostatic generating device comprises an electrostatic generator installed at the left side under the spinneret plate and an electrostatic receiver installed at the right side under the spinneret plate.
  • the Voltage between the electrostatic generator and the electrostatic receiver is 60-100Kv, and the Frequency is 20-30KHz, and the Current is 0.2-0.8mA.
  • melt-blown fibers go from the screw extruder to the spinneret plate, then go down under the effect of air in high temperature and high pressure, goes by the electrostatic generating device and then falls on the receiver; after carding by the carding machine and lappping by the a lapper, the polyester staple fibers fall down to the electrostatic generating device, which is between the electrostatic generator and the electrostatic receiver and loads charges by electric field, so imports the polyester staple fibers to the melt-blown fibers; the mixture eventually interwine into nonwoven fabric which is in a V-shaped arrangement when observed from the longitudinal and vertical cross-sections.
  • the nonwoven fabric of this invention has relatively high degree of filling, the desired bulkiness and uniformity, and fine sound and heat insulation.
  • the invention discloses a kind of nonwoven fabric, which contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids, PP fibers and PET fibers should occupy 65% and 35% respectively in the first specific embodiment, then 75% and 25% in the second specific embodiment, then 70% and 30% in the third embodiment.
  • the nonwoven fabric of this invention has high degree of filling, the desired bulkiness and uniformity, and fine sound and heat insulation with following detailed indicators:
  • the light transmittance os such a fabric allows no more than 2% of change, and the geometric diameter of the directly-formed fabric allows no more than 10 ⁇ m, and the fabric has no more than 10cm in thickness, less than 50Kg/m 2 in density, and more than 100 MKS rayls in acoustic resistivity.
  • the surface characteristic of the fabric of the invention can be similar to that of other kinds of nonwoven fabric, and the characteristic changes from rather open and porosity to tight in various degrees and decreasing porosity; the fiber insulativity of the fabric of the invention is normally irrelevant to the materials it is made up from; the fibers used in this invention can be formed from the materials almost forming any kind of fibers, and the typical polymers to form melt-blown microfibers include polypropylene, polyethylene, polyethylene terephthalate, polyamide, and other widely-known polymers in this technological field, and all these materials can be used to form other kinds of fibers.
  • the invention discloses a manufacturing apparatus to produce V-shaped melt-blown nonwoven fabric, comprising a receiver 4, a carding machine 1 located at the upper of the left side of the receiver 4 and a screw extruder 2 located at the upper of the right side of the receiver 4, also a spinneret plate 3 connected to the bottom of the screw extruder 2, and a lapper 7 between the carding machine 1 and the receiver 4 with an electrostatic generating device below the spinneret plate 3.
  • the electrostatic generating device comprises an electrostatic generator 5 installed at the left side under the spinneret plate 3 and an electrostatic receiver 6 installed at the right side under the spinneret plate 3, and the Voltage between the electrostatic generator 5 and the electrostatic receiver 6 is 60-100Kv, and the Frequency is 20-30KHz, and the Current is 0.2-0.8mA.
  • (PP) slice goes from the screw extruder 2 to the spinneret plate 3, then leads the melt-blown fibers to go down under the effect of air in high temperature and high pressure, goes by the electrostatic generating device 5 and then falls on the receiver 4; after carding by the carding machine 1 and lappping by the a lapper 7, the polyester staple fibers fall down to the electrostatic generating device, which is between the electrostatic generator 5 and the electrostatic receiver 6 and loads charges by electric field, so imports the polyester staple fibers to the melt-blown fibers; the mixture gathers in the direction of the electrostatic receiver 6 when it is falling down, eventually interwine into nonwoven fabric which is in a V-shaped arrangement when observed from the longitudinal and vertical cross-sections.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a kind of nonwoven fabric, which contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids; it also discloses a kind of nonwoven fabric manufacturing apparatus, comprising a receiver, a carding machine located at the upper of the left side of the receiver and a screw extruder located at the upper of the right side of the receiver, also a spinneret plate connected to the bottom of the screw extruder, and a lapper between the carding machine and the receiver with an electrostatic generating device below the spinneret plate. Looked over the longitudinal and vertical cross-sections, this fabric is in a V-shaped arrangement, with high degree of filling as well as the desired bulkiness and uniformity.

Description

    Technical Field
  • The invention relates to a kind of nonwoven fabric, especially relates to a kind of melt-blown nonwoven fabric in a V-shaped arrangement when it is observed from the longitudinal and vertical cross-sections, also relates to a V-shaped nonwoven fabric manufacturing apparatus.
    • Background Art
  • Nonwoven products is common enough in everyday life, such as diapers, sanitary pads, rags, products in filter categories and so on, and a number of important performance of nonwoven products should be implemented through superfine fiber net, so the melt-blown quality of superfine fiber net is the difficult point of the nonwoven fabric machining.
  • The nonwoven fabric in the current technology is mainly melt-blown from polypropylene fiber filled with the air in high temperature and high pressure, then looked over the cross section of the product, the center part of the fiber is arranged in chaotic irregular form, so that it is difficult to gain desired bulkiness and uniformity, and the degree of filling is relatively low.
    • Disclosure of the invention
  • The invention aims to provide a kind of melt-blown nonwoven fabric in a V-shaped arrangement observed from its longitudinal and vertical cross-section.
  • In order to solve the technical problems, the invention employs the following technical solution: a kind of nonwoven fabric, which contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids.
  • The light transmittance os such a fabric allows no more than 2% of change.
  • The geometric diameter of the directly-formed fabric allows no more than 10µm.
  • The fabric has no more than 10cm in thickness, less than 50Kg/m2 in density, and more than 100 MKS rayls in acoustic resistivity.
  • The invention aims to provide a manufacturing apparatus to produce V-shaped melt-blown nonwoven fabric.
  • In order to solve the technical problems, the invention employs the following technical solution: a kind of nonwoven fabric manufacturing apparatus, comprising a receiver, a carding machine located at the upper of the left side of the receiver and a screw extruder located at the upper of the right side of the receiver, also a spinneret plate connected to the bottom of the screw extruder, and a lapper between the carding machine and the receiver with an electrostatic generating device below the spinneret plate.
  • Furthermore, the electrostatic generating device comprises an electrostatic generator installed at the left side under the spinneret plate and an electrostatic receiver installed at the right side under the spinneret plate.
  • Moreover, the Voltage between the electrostatic generator and the electrostatic receiver is 60-100Kv, and the Frequency is 20-30KHz, and the Current is 0.2-0.8mA.
  • Beneficial effects of the invention: during the operation of this apparatus, melt-blown fibers go from the screw extruder to the spinneret plate, then go down under the effect of air in high temperature and high pressure, goes by the electrostatic generating device and then falls on the receiver; after carding by the carding machine and lappping by the a lapper, the polyester staple fibers fall down to the electrostatic generating device, which is between the electrostatic generator and the electrostatic receiver and loads charges by electric field, so imports the polyester staple fibers to the melt-blown fibers; the mixture eventually interwine into nonwoven fabric which is in a V-shaped arrangement when observed from the longitudinal and vertical cross-sections. The nonwoven fabric of this invention has relatively high degree of filling, the desired bulkiness and uniformity, and fine sound and heat insulation.
    • Brief Description of Drawings
    • Figure 1 is the sectional view for the nonwoven fabric of the invention;
    • Figure 2 is the structure diagram for the manufacturing apparatus of the invention.
    Best Mode for Carrying out the Invention
  • The invention will be further described in detail with the help of attached drawings.
  • As shown in Figure 1, the invention discloses a kind of nonwoven fabric, which contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids, PP fibers and PET fibers should occupy 65% and 35% respectively in the first specific embodiment, then 75% and 25% in the second specific embodiment, then 70% and 30% in the third embodiment. The nonwoven fabric of this invention has high degree of filling, the desired bulkiness and uniformity, and fine sound and heat insulation with following detailed indicators: The light transmittance os such a fabric allows no more than 2% of change, and the geometric diameter of the directly-formed fabric allows no more than 10 µm, and the fabric has no more than 10cm in thickness, less than 50Kg/m2 in density, and more than 100 MKS rayls in acoustic resistivity.
  • The surface characteristic of the fabric of the invention can be similar to that of other kinds of nonwoven fabric, and the characteristic changes from rather open and porosity to tight in various degrees and decreasing porosity; the fiber insulativity of the fabric of the invention is normally irrelevant to the materials it is made up from; the fibers used in this invention can be formed from the materials almost forming any kind of fibers, and the typical polymers to form melt-blown microfibers include polypropylene, polyethylene, polyethylene terephthalate, polyamide, and other widely-known polymers in this technological field, and all these materials can be used to form other kinds of fibers.
  • As shown in Figure 2, the invention discloses a manufacturing apparatus to produce V-shaped melt-blown nonwoven fabric, comprising a receiver 4, a carding machine 1 located at the upper of the left side of the receiver 4 and a screw extruder 2 located at the upper of the right side of the receiver 4, also a spinneret plate 3 connected to the bottom of the screw extruder 2, and a lapper 7 between the carding machine 1 and the receiver 4 with an electrostatic generating device below the spinneret plate 3. The electrostatic generating device comprises an electrostatic generator 5 installed at the left side under the spinneret plate 3 and an electrostatic receiver 6 installed at the right side under the spinneret plate 3, and the Voltage between the electrostatic generator 5 and the electrostatic receiver 6 is 60-100Kv, and the Frequency is 20-30KHz, and the Current is 0.2-0.8mA.
  • During the operation of this apparatus, (PP) slice goes from the screw extruder 2 to the spinneret plate 3, then leads the melt-blown fibers to go down under the effect of air in high temperature and high pressure, goes by the electrostatic generating device 5 and then falls on the receiver 4; after carding by the carding machine 1 and lappping by the a lapper 7, the polyester staple fibers fall down to the electrostatic generating device, which is between the electrostatic generator 5 and the electrostatic receiver 6 and loads charges by electric field, so imports the polyester staple fibers to the melt-blown fibers; the mixture gathers in the direction of the electrostatic receiver 6 when it is falling down, eventually interwine into nonwoven fabric which is in a V-shaped arrangement when observed from the longitudinal and vertical cross-sections.

Claims (7)

  1. A kind of nonwoven fabric features that it contains the directly-formed fibers disposed in fabric and arranged in a V-shaped pattern, and 65-75% of every fiber is melt-blown and the rest is polyester staple fiber so that it can form continuous, fluffy and resilient fabric structure without large voids.
  2. The nonwoven fabric as claimed in Claim 1 features that the light transmittance os such a fabric allows no more than 2% of change.
  3. The nonwoven fabric as claimed in Claim 2 features that the geometric diameter of the directly-formed fabric allows no more than 10µm.
  4. The nonwoven fabric as claimed in Claim 3 features that the fabric has no more than 10cm in thickness, less than 50Kg/m2 in density, and more than 100 MKS rayls in acoustic resistivity.
  5. A kind of nonwoven fabric manufacturing apparatus as claimed in Claim 1 features that it comprises a receiver (4), a carding machine (1) located at the upper of the left side of the receiver (4) and a screw extruder (2) located at the upper of the right side of the receiver (4), also a spinneret plate (3) connected to the bottom of the screw extruder (2), and a lapper (7) between the carding machine (1) and the receiver (4) with an electrostatic generating device below the spinneret plate (3).
  6. A manufacturing apparatus as claimed in Claim 5 features that the electrostatic generating device comprises an electrostatic generator (5) installed at the left side under the spinneret plate (3) and an electrostatic receiver (6) installed at the right side under the spinneret plate (3).
  7. A manufacturing apparatus as claimed in Claim 6 features that the Voltage between the electrostatic generator (5) and the electrostatic receiver (6) is 60-100Kv, and the Frequency is 20-30KHz, and the Current is 0.2-0.8mA.
EP12851923.8A 2011-11-22 2012-09-17 Non-woven fibrous fabric and production equipment therefor Withdrawn EP2784203A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110372127.2A CN102560895B (en) 2011-11-22 2011-11-22 Nonwoven fiber fabric and production equipment thereof
PCT/CN2012/001269 WO2013075395A1 (en) 2011-11-22 2012-09-17 Non-woven fibrous fabric and production equipment therefor

Publications (2)

Publication Number Publication Date
EP2784203A1 true EP2784203A1 (en) 2014-10-01
EP2784203A4 EP2784203A4 (en) 2015-09-02

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EP12851923.8A Withdrawn EP2784203A4 (en) 2011-11-22 2012-09-17 Non-woven fibrous fabric and production equipment therefor

Country Status (7)

Country Link
US (1) US20140272360A1 (en)
EP (1) EP2784203A4 (en)
JP (1) JP2014505182A (en)
KR (1) KR20140004244A (en)
CN (1) CN102560895B (en)
RU (1) RU2013144851A (en)
WO (1) WO2013075395A1 (en)

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TWI521112B (en) * 2012-05-25 2016-02-11 財團法人紡織產業綜合研究所 Nonwoven fabric and method and apparatus for manufacturing the same
CN102978831A (en) * 2012-11-22 2013-03-20 芜湖跃飞新型吸音材料股份有限公司 PET (polyethylene terephthalate) fiber/polybenzimidazole fiber composite sound absorption cotton and preparation method thereof
CN103276535B (en) * 2013-06-19 2015-08-26 天津泰达洁净材料有限公司 A kind of double-component melt-blown non-woven material and manufacture method thereof
CN104250882B (en) * 2013-06-28 2016-12-28 财团法人纺织产业综合研究所 Filter material and manufacture method thereof
KR101349262B1 (en) * 2013-07-18 2014-01-23 주식회사 익성 Melt blown fiber web with enhanced elasticity and cohesive strength
US20150211160A1 (en) * 2014-01-29 2015-07-30 Biax-Fiberfilm High loft, nonwoven web exhibiting excellent recovery
CN104005175A (en) * 2014-04-14 2014-08-27 江苏环宇汽车零部件有限公司 Multifunctional vehicle sound-proof thermal insulating composite material and preparation method thereof
MY196721A (en) 2016-08-02 2023-05-02 Fitesa Germany Gmbh System and process for preparing polylactic acid nonwoven fabrics
US11441251B2 (en) 2016-08-16 2022-09-13 Fitesa Germany Gmbh Nonwoven fabrics comprising polylactic acid having improved strength and toughness
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