EP0284462A1 - Verfahren zum thermischen Verfestigen eines, synthetische Fasern enthaltenden Faservlieses und Transportband für die Ausführung des Verfahrens - Google Patents

Verfahren zum thermischen Verfestigen eines, synthetische Fasern enthaltenden Faservlieses und Transportband für die Ausführung des Verfahrens Download PDF

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Publication number
EP0284462A1
EP0284462A1 EP88400450A EP88400450A EP0284462A1 EP 0284462 A1 EP0284462 A1 EP 0284462A1 EP 88400450 A EP88400450 A EP 88400450A EP 88400450 A EP88400450 A EP 88400450A EP 0284462 A1 EP0284462 A1 EP 0284462A1
Authority
EP
European Patent Office
Prior art keywords
temperature
fabric
monofilaments
melting temperature
hot gas
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.)
Granted
Application number
EP88400450A
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English (en)
French (fr)
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EP0284462B1 (de
Inventor
Maurice Gauthier
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.)
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9348433&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0284462(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT88400450T priority Critical patent/ATE70861T1/de
Publication of EP0284462A1 publication Critical patent/EP0284462A1/de
Application granted granted Critical
Publication of EP0284462B1 publication Critical patent/EP0284462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D04H1/54—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
    • D04H1/542—Adhesive fibres
    • D04H1/55—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
    • D04H1/54—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
    • 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
    • D04H1/542—Adhesive fibres
    • D04H1/549—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction 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
    • D04H3/14—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 yarns or filaments produced by welding

Definitions

  • the present invention relates to a process for thermobonding a nonwoven veil comprising synthetic fibers, in which the veil is brought to a forming fabric, hot gas is passed through the veil and the fabric, this hot gas being at a temperature at least equal to the fiber melting temperature t2.
  • the nonwoven veil is made up either of 100% synthetic cut fibers or in a mixture with cellulosic and / or mineral fibers or of synthetic continuous fibers.
  • the synthetic fibers are softened or fused, which makes it possible to obtain, after cooling, a binding of the fibers in the veil.
  • the metal fabrics having a very high thermal conductivity absorb the heat transported by the hot air; therefore the points of the metallic fabric in contact with the veil tend to be at too high a temperature which causes greater fusions of the veil at these points; which affects the quality of the veil.
  • plastic canvases are much easier to install than metal canvases.
  • the training fabric according to the invention does not allow the production of nonwoven webs of synthetic fibers having a relatively high melting point t2.
  • the fabric according to a first embodiment of the invention consists of monofilaments of polyphenylene sulfide, the melting temperature of which is 280 ° C. and which are relatively inexpensive.
  • the fabric can also consist of polyether ether ketone monofilaments, the melting temperature of which is of the order of 330 ° C.
  • polyester and polyamide fibers whose temperature t2 is very high for example fibers whose melting temperature is of the order of 230 ° C.
  • the forming fabric is cleaned by passing through it a hot fluid at high speed having a temperature between the melting temperature of the fibers and the melting temperature of the fabric which is higher. to that of fibers of at least 80 ° C.
  • a hood 5 blowing hot air at a temperature t lower than t1 but at least equal to the melting temperature t2 of the synthetic fibers of the veil 6.
  • This hood 5 is followed by a hood 7 blowing cold air.
  • the veil 6 is therefore applied against the fabric 1 on the upper part of the cylinder 3 and is crossed, as well as the fabric 1, by hot air and then at the end of the route with colder air.
  • a device 8 blowing hot air at high speed or steam under high pressure (20 to 30 bars) at a temperature above t2 but below t1 has been placed. which allows a cleaning of the canvas of the synthetic materials which pollute it. These are thus melted and ejected.
  • the device 8 can be portable (for localized pollution) or fixed. In the latter case it is preferably the width of the canvas.
  • thermofixation The dimensional characteristics and the surface conditions in the treated areas will not be modified because these fabrics are thermofixed at high temperature which guarantees a permanence of the characteristics as long as the temperature of the fabric does not reach (totally or locally) the temperature of thermofixation.
  • These monofilaments constituting the fabrics are arranged in warp and in weft in the form of simple or multilayer fabric (several layers of warp threads and / or weft threads), or else in spirals joined together.
  • the characteristics of the fabrics 1 are chosen (air permeability, weave, surface condition) as a function of the characteristics of the nonwoven veil to be formed.
  • Their weight can be between 500 to 1,500 gr / m2 and their permeability between 4,000 to 25,000 m3 / m2 / h under differential pressure of 100 Pascals.
  • These fabrics can be circular or with junctions. These can consist of loops at each end of the canvas. In this case it can be provided preferably at each end two different sets of loop lengths as described in French Patent No. 72 27 942.
EP88400450A 1987-02-27 1988-02-26 Verfahren zum thermischen Verfestigen eines, synthetische Fasern enthaltenden Faservlieses und Transportband für die Ausführung des Verfahrens Expired - Lifetime EP0284462B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400450T ATE70861T1 (de) 1987-02-27 1988-02-26 Verfahren zum thermischen verfestigen eines, synthetische fasern enthaltenden faservlieses und transportband fuer die ausfuehrung des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702675 1987-02-27
FR8702675A FR2611753B1 (fr) 1987-02-27 1987-02-27 Procede de thermoliage d'un voile non tisse comportant des fibres synthetiques et toile pour l'application de ce procede

Publications (2)

Publication Number Publication Date
EP0284462A1 true EP0284462A1 (de) 1988-09-28
EP0284462B1 EP0284462B1 (de) 1991-12-27

Family

ID=9348433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400450A Expired - Lifetime EP0284462B1 (de) 1987-02-27 1988-02-26 Verfahren zum thermischen Verfestigen eines, synthetische Fasern enthaltenden Faservlieses und Transportband für die Ausführung des Verfahrens

Country Status (6)

Country Link
EP (1) EP0284462B1 (de)
AT (1) ATE70861T1 (de)
DE (1) DE3867099D1 (de)
DK (1) DK102888A (de)
ES (1) ES2028310T3 (de)
FR (1) FR2611753B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400581A2 (de) * 1989-05-31 1990-12-05 Claudio Governale Verfahren zur Verfestigung von nichtgewebten faserigen Strukturen und Maschinerie zur Durchführung des Verfahrens
EP0719887A3 (de) * 1994-12-13 1998-04-01 FLEISSNER GmbH & Co. KG Maschinenfabrik Verfahren und Vorrichtung zum Veredeln von Krempelvliesen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112239918B (zh) * 2020-10-12 2021-08-24 吉安市三菱超细纤维有限公司 一种无纺布热轧机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488928A (en) * 1983-05-16 1984-12-18 Kimberly-Clark Corporation Method and apparatus for forming soft, bulky absorbent webs and resulting product

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488928A (en) * 1983-05-16 1984-12-18 Kimberly-Clark Corporation Method and apparatus for forming soft, bulky absorbent webs and resulting product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
L'INDUSTRIE TEXTILE, no. 1154, avril 1985, pages 355-360, Paris, FR; B. CHABERT et al.: "Fils et fibres chimiques à usages techniques - les organiques -" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400581A3 (de) * 1989-05-30 1991-03-27 Claudio Governale Verfahren zur Verfestigung von nichtgewebten faserigen Strukturen und Maschinerie zur Durchführung des Verfahrens
EP0400581A2 (de) * 1989-05-31 1990-12-05 Claudio Governale Verfahren zur Verfestigung von nichtgewebten faserigen Strukturen und Maschinerie zur Durchführung des Verfahrens
EP0719887A3 (de) * 1994-12-13 1998-04-01 FLEISSNER GmbH & Co. KG Maschinenfabrik Verfahren und Vorrichtung zum Veredeln von Krempelvliesen

Also Published As

Publication number Publication date
FR2611753A1 (fr) 1988-09-09
ES2028310T3 (es) 1992-07-01
DK102888A (da) 1988-08-28
DE3867099D1 (de) 1992-02-06
FR2611753B1 (fr) 1989-09-15
DK102888D0 (da) 1988-02-26
ATE70861T1 (de) 1992-01-15
EP0284462B1 (de) 1991-12-27

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