ITMI20120245A1 - Processo per fabbricare tessuti in fibra di carbonio e tessuto fabbricato con questo processo - Google Patents

Processo per fabbricare tessuti in fibra di carbonio e tessuto fabbricato con questo processo Download PDF

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Publication number
ITMI20120245A1
ITMI20120245A1 IT000245A ITMI20120245A ITMI20120245A1 IT MI20120245 A1 ITMI20120245 A1 IT MI20120245A1 IT 000245 A IT000245 A IT 000245A IT MI20120245 A ITMI20120245 A IT MI20120245A IT MI20120245 A1 ITMI20120245 A1 IT MI20120245A1
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IT
Italy
Prior art keywords
fabric
process according
protective layer
silicone
acrylic emulsion
Prior art date
Application number
IT000245A
Other languages
English (en)
Inventor
Attilio Masini
Original Assignee
Automobili Lamborghini Spa
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 Automobili Lamborghini Spa filed Critical Automobili Lamborghini Spa
Priority to IT000245A priority Critical patent/ITMI20120245A1/it
Priority to US14/371,233 priority patent/US9511564B2/en
Priority to JP2014557142A priority patent/JP6100282B2/ja
Priority to ES13713525.7T priority patent/ES2561052T3/es
Priority to EP13713525.7A priority patent/EP2817447B1/en
Priority to RU2014138134A priority patent/RU2614679C2/ru
Priority to PCT/IB2013/051113 priority patent/WO2013124760A1/en
Priority to CN201380007216.4A priority patent/CN104937163A/zh
Priority to SA113340308A priority patent/SA113340308B1/ar
Publication of ITMI20120245A1 publication Critical patent/ITMI20120245A1/it
Priority to HK15110005.5A priority patent/HK1209466A1/xx
Priority to US15/333,437 priority patent/US10392745B2/en

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    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M17/00—Producing multi-layer textile fabrics
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Inorganic Fibers (AREA)

Description

PROCESSO PER FABBRICARE TESSUTI IN FIBRA DI CARBONIO E
TESSUTO FABBRICATO CON QUESTO PROCESSO
La presente invenzione riguarda un processo per fabbricare tessuti in fibra di carbonio, in particolare un tessuto flessibile che può essere impiegato per rivestire parti interne di autoveicoli. La presente invenzione riguarda anche un rivestimento per autoveicoli comprendente questo tessuto.
Noti tessuti in fibra di carbonio comprendono un intreccio di sottili filamenti di fibre di carbonio disposti perpendicolarmente tra loro. Questi tessuti noti vengono impregnati con resine polimeriche e sovrapposti secondo direzioni opportune. Le resine vengono polimerizzate per ottenere materiali rigidi con un'elevata resistenza specifica, i quali sono adatti alla realizzazione di parti strutturali o parti estetiche. Questi materiali, a causa della loro rigidezza caratteristica, non possono essere applicati ad esempio alle parti interne di autoveicoli, dove sono richiesti tessuti flessibili che possono essere cuciti e piegati. Ciò esclude anche l'uso dei tessuti grezzi in fibra di carbonio, che tendono a sfilarsi e non sono in grado di mantenere inalterata la disposizione delle fibre una volta deformati.
Scopo della presente invenzione à ̈ pertanto quello di fornire un tessuto in fibra di carbonio esente da tali inconvenienti. Detto scopo viene conseguito con un processo, un tessuto ed un rivestimento, le cui caratteristiche principali sono specificate rispettivamente nelle rivendicazioni 1, 12 e 14, mentre altre caratteristiche sono specificate nelle restanti rivendicazioni.
Grazie alle sue particolari caratteristiche, il tessuto secondo la presente invenzione può essere vantaggiosamente utilizzato per prodotti ed accessori di abbigliamento o pelletteria, in particolare borse, nonché per altre applicazioni in cui à ̈ richiesto un tessuto flessibile, come ad esempio rivestimenti di sedute e pareti interne, in particolare di autoveicoli. Infatti, il tessuto secondo la presente invenzione non si sfibra anche quando le fibre sono sollecitate dalle cuciture. Inoltre, anche se deformato lungo due assi di curvatura trasversali, ossia con deformazioni concave o convesse, il tessuto mantiene una disposizione sostanzialmente perpendicolare ed uno scorrimento longitudinale limitato delle fibre, così da evitare deformazioni permanenti della sua struttura.
Un particolare strato protettivo à ̈ preferibilmente applicato al tessuto per migliorare il trattamento durante la fabbricazione e/o limitare la flessibilità del tessuto, nonché per renderlo resistente, impermeabile, isolante, semi-trasparente, nontrasparente e/o opaco.
Il tessuto secondo la presente invenzione à ̈ piacevole al tatto e presenta un'elevata resistenza, superiore a quella di un tessuto grezzo in fibra di carbonio, mantenendo tuttavia un'estrema flessibilità che permette anche di realizzare pieghe od orli sullo stesso tessuto senza comprometterne l’integrità. Il tessuto à ̈ anche molto elastico dato che la sua particolare impregnatura garantisce una corretta disposizione della trama anche in seguito a deformazioni. È pertanto possibile deformare questo tessuto senza comprometterne la trama e senza causare sfilamenti tra le fibre.
Secondo un aspetto dell'invenzione, la particolare emulsione siliconica od acrilica impregna anche le fibre più interne del tessuto in fibra di carbonio, in modo da ottenere un tessuto resistente all’usura superficiale, ma comunque estremamente flessibile.
Almeno un bordo del tessuto nella sua configurazione finale à ̈ preferibilmente ripiegato e cucito su se stesso, in modo da formare un orlo che previene lo sfilamento delle fibre degli strati più interni del tessuto.
Ulteriori vantaggi e caratteristiche del tessuto e del processo secondo la presente invenzione risulteranno evidenti agli esperti del ramo dalla seguente descrizione dettagliata e non limitativa di una loro forma realizzativa con riferimento agli annessi disegni in cui:
- la figura 1 mostra una sezione parziale del tessuto in una fase del processo; e - la figura 2 mostra il tessuto di figura 1 in una fase successiva del processo.
Facendo riferimento alla figura 1, si vede che il tessuto 1 secondo la presente invenzione comprende almeno un intreccio, in particolare tela, saia o raso, di filati in fibra di carbonio aventi una densità lineare compresa tra 50 e 5000 g/km e comprendenti da 1000 a 60000 filamenti, in particolare da 3000 a 24000 filamenti aventi un diametro compreso tra 5 e 10 micron. Lo spessore del tessuto 1 à ̈ compreso tra 50 e 1000 micron.
In una prima fase operativa preliminare, per assicurare la regolarità ed una buona finitura estetica dell'intreccio, il tessuto 1 viene spazzolato e/o stirato ad una temperatura compresa tra 30° e 200° e/o ad una pressione compresa tra 1 e 100 bar mediante due cilindri o due piastre atte ad esercitare una pressione variabile.
In una seconda fase operativa preliminare, almeno uno strato protettivo 2, in particolare comprendente una pellicola, un tessuto od un tessuto non tessuto, più in particolare una pellicola poliuretanica, poliammidica od acrilica, à ̈ applicato su un lato del tessuto 1. Lo spessore dello strato protettivo 2 à ̈ compreso tra 50 e 500 micron. Lo strato protettivo 2 à ̈ applicato al tessuto 1 mediante una laminazione, in particolare una calandratura o pressatura a caldo, nella quale il tessuto 1 e lo strato protettivo 2 sono laminati insieme ad una temperatura compresa tra 30° e 200° e/o ad una pressione compresa tra 10 e 200 bar. Durante questa fase operativa la superficie dello strato protettivo 2 in contatto col tessuto 1 compenetra parzialmente il tessuto 1, in modo da creare uno strato intermedio 3, avente uno spessore compreso tra il 5% ed il 60% dello spessore del tessuto 1, in cui i filamenti esterni del tessuto 1 sono solidali allo strato protettivo 2.
Facendo riferimento alla figura 2, si vede che in una fase operativa principale il tessuto 1 viene impregnato con un'emulsione siliconica od acrilica 4 mediante spruzzatori 5, oppure mediante spalmatura, immersione oppure con una procedura di trasferimento "hot-melt". Gli spruzzatori 5 sono disposti sul lato del tessuto 1 opposto rispetto allo strato protettivo 2, ossia il tessuto 1 à ̈ compreso tra lo strato protettivo 2 e gli spruzzatori 5. Il tessuto 1 con l'emulsione siliconica od acrilica 4 viene pressato attraverso dei rulli di laminazione ad una pressione esercitata dai rulli compresa tra 1 e 100 bar per far penetrare l'emulsione siliconica od acrilica 4 nel tessuto 1 e rimuoverne la quantità in eccesso.
In una successiva fase del processo l'emulsione siliconica od acrilica 4 nel tessuto 1 viene essiccata, in particolare attraverso un trattamento termico in forno ad una temperatura compresa tra 20° e 200° C, per un tempo compreso tra 2 e 40 ore. Al termine di questa fase di essiccazione il tessuto 1 Ã ̈ impregnato con una percentuale di emulsione siliconica od acrilica 4 compresa tra l'1% ed il 60% del peso del tessuto 1.
In una forma realizzativa alternativa, l'emulsione siliconica od acrilica 4 può essere applicata al tessuto 1 nel modo sopra descritto prima di applicare lo strato protettivo 2.
In una fase operativa finale, almeno un bordo del tessuto 1 impregnato con l'emulsione siliconica od acrilica 4 ed unito all'eventuale strato protettivo 2 viene ripiegato e cucito su se stesso in modo da formare un orlo.
Eventuali varianti e/o aggiunte possono essere apportate dagli esperti del ramo alla forma realizzativa dell'invenzione qui descritta ed illustrata restando nell’ambito delle seguenti rivendicazioni. In particolare, ulteriori forme realizzative dell’invenzione possono comprendere le caratteristiche tecniche di una delle seguenti rivendicazioni con l’aggiunta di una o più caratteristiche tecniche, prese singolarmente od in qualsiasi combinazione reciproca, descritte nel testo e/o illustrate nei disegni.

Claims (14)

  1. RIVENDICAZIONI 1. Processo per fabbricare tessuti in fibra di carbonio, caratterizzato dal fatto che un tessuto di fibra di carbonio (1) viene impregnato con un'emulsione siliconica od acrilica (4) che viene poi essiccata insieme al tessuto (1).
  2. 2. Processo secondo la rivendicazione precedente, caratterizzato dal fatto che l'emulsione siliconica od acrilica (4) viene applicata al tessuto (1) mediante spruzzatura (5), spalmatura, immersione oppure con una procedura di trasferimento "hot-melt".
  3. 3. Processo secondo una delle rivendicazioni precedenti, caratterizzato dal fatto che il tessuto (1) Ã ̈ impregnato con una percentuale di emulsione siliconica od acrilica (4) compresa tra l'1% ed il 60% del peso del tessuto (1).
  4. 4. Processo secondo una delle rivendicazioni precedenti, caratterizzato dal fatto che prima dell'essiccazione il tessuto (1) con l'emulsione siliconica od acrilica (4) viene pressato ad una pressione compresa tra 1 e 100 bar.
  5. 5. Processo secondo una delle rivendicazioni precedenti, caratterizzato dal fatto che uno strato protettivo (2) Ã ̈ applicato su un lato del tessuto (1).
  6. 6. Processo secondo la rivendicazione precedente, caratterizzato dal fatto che l'emulsione siliconica od acrilica (4) Ã ̈ applicata al tessuto (1) prima di applicare lo strato protettivo (2) al tessuto (1).
  7. 7. Processo secondo la rivendicazione 5 o 6, caratterizzato dal fatto che lo strato protettivo (2) comprende una pellicola poliuretanica, poliammidica od acrilica.
  8. 8. Processo secondo una delle rivendicazioni da 5 a 7, caratterizzato dal fatto che lo strato protettivo (2) Ã ̈ applicato al tessuto (1) mediante una laminazione, in particolare una calandratura o pressatura a caldo, nella quale la superficie dello strato protettivo (2) in contatto col tessuto (1) compenetra parzialmente il tessuto (1), in modo da creare uno strato intermedio (3) in cui i filamenti esterni del tessuto (1) sono solidali allo strato protettivo (2).
  9. 9. Processo secondo la rivendicazione precedente, caratterizzato dal fatto che lo spessore dello strato intermedio (3) Ã ̈ compreso tra il 5% ed il 60% dello spessore del tessuto (1).
  10. 10. Processo secondo la rivendicazione 8 o 9, caratterizzato dal fatto che detta laminazione à ̈ eseguita ad una temperatura compresa tra 30° e 200° e/o ad una pressione compresa tra 10 e 200 bar.
  11. 11. Processo secondo una delle rivendicazioni precedenti, caratterizzato dal fatto che almeno un bordo del tessuto (1) impregnato con l'emulsione siliconica od acrilica (4) ed unito all'eventuale strato protettivo (2) viene ripiegato e cucito su se stesso in modo da formare un orlo.
  12. 12. Tessuto in fibra di carbonio (1), caratterizzato dal fatto di essere fabbricato con il processo secondo una delle rivendicazioni precedenti.
  13. 13. Tessuto secondo la rivendicazione precedente, caratterizzato dal fatto di essere deformabile lungo due assi di curvatura trasversali.
  14. 14. Rivestimento per autoveicoli, caratterizzato dal fatto di comprendere un tessuto secondo la rivendicazione 12 o 13.
IT000245A 2012-02-20 2012-02-20 Processo per fabbricare tessuti in fibra di carbonio e tessuto fabbricato con questo processo ITMI20120245A1 (it)

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IT000245A ITMI20120245A1 (it) 2012-02-20 2012-02-20 Processo per fabbricare tessuti in fibra di carbonio e tessuto fabbricato con questo processo
RU2014138134A RU2614679C2 (ru) 2012-02-20 2013-02-11 Способ получения ткани из углеродного волокна и ткань, полученная указанным способом
JP2014557142A JP6100282B2 (ja) 2012-02-20 2013-02-11 炭素繊維布帛を製造するための方法及びこの方法によって製造された布帛
ES13713525.7T ES2561052T3 (es) 2012-02-20 2013-02-11 Procedimiento para la fabricación de telas de fibra de carbono y telas fabricadas con este procedimiento
EP13713525.7A EP2817447B1 (en) 2012-02-20 2013-02-11 Process for manufacturing carbon fiber fabrics and fabric manufactured with this process
US14/371,233 US9511564B2 (en) 2012-02-20 2013-02-11 Process for manufacturing carbon fiber fabrics and fabric manufactured with this process
PCT/IB2013/051113 WO2013124760A1 (en) 2012-02-20 2013-02-11 Process for manufacturing carbon fiber fabrics and fabric manufactured with this process
CN201380007216.4A CN104937163A (zh) 2012-02-20 2013-02-11 制造碳纤维织物的方法及利用该方法制造的织物
SA113340308A SA113340308B1 (ar) 2012-02-20 2013-02-18 عملية لتصنيع منسوجات من ألياف كربون ونسيج مصنع بهذه العملية
HK15110005.5A HK1209466A1 (en) 2012-02-20 2015-10-13 Process for manufacturing carbon fiber fabrics and fabric manufactured with this process
US15/333,437 US10392745B2 (en) 2012-02-20 2016-10-25 Process for manufacturing carbon fiber fabrics and fabric manufactured with this process

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