ITCO20110019A1 - COMPONENT IN NON-WOVEN TEXTILE FIBERS AND RELATED METHOD AND MACHINE FOR ITS PRODUCTION - Google Patents
COMPONENT IN NON-WOVEN TEXTILE FIBERS AND RELATED METHOD AND MACHINE FOR ITS PRODUCTION Download PDFInfo
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- ITCO20110019A1 ITCO20110019A1 IT000019A ITCO20110019A ITCO20110019A1 IT CO20110019 A1 ITCO20110019 A1 IT CO20110019A1 IT 000019 A IT000019 A IT 000019A IT CO20110019 A ITCO20110019 A IT CO20110019A IT CO20110019 A1 ITCO20110019 A1 IT CO20110019A1
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- Prior art keywords
- web
- needling
- component
- pleating
- head
- Prior art date
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- 239000000835 fiber Substances 0.000 title claims description 45
- 239000004753 textile Substances 0.000 title claims description 39
- 238000000034 method Methods 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 210000002268 wool Anatomy 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 241000282836 Camelus dromedarius Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06J—PLEATING, KILTING OR GOFFERING TEXTILE FABRICS OR WEARING APPAREL
- D06J1/00—Pleating, kilting or goffering textile fabrics or wearing apparel
- D06J1/02—Pleating, kilting or goffering textile fabrics or wearing apparel continuously and transversely to the direction of feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G11/00—Finished upholstery not provided for in other classes
- B68G11/02—Finished upholstery not provided for in other classes mainly composed of fibrous materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B68—SADDLERY; UPHOLSTERY
- B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B68G7/00—Making upholstery
- B68G7/02—Making upholstery from waddings, fleeces, mats, or the like
- B68G7/04—Making upholstery from waddings, fleeces, mats, or the like by conveyor-line methods
-
- 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
- D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial 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
- 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
-
- 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)
-
- 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
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/743—Animal products, e.g. wool, feathers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
Description
“Componente in fibre tessili non-tessute e relativi metodo e macchina per la sua produzione†⠀ œComponent in non-woven textile fibers and relative method and machine for its productionâ €
DESCRIZIONE CAMPO DELL'INVENZIONE DESCRIPTION FIELD OF THE INVENTION
La presente invenzione si riferisce ad un componente in fibre tessili non-tessute ed a relativi metodo e macchina per la sua produzione. The present invention relates to a component in non-woven textile fibers and to the relative method and machine for its production.
STATO DELLA TECNICA STATE OF THE TECHNIQUE
Prima di entrare maggiormente nel merito della presente invenzione à ̈ bene fare una premessa generale sulle fibre tessili. La fibre tessili si suddividono in due grandi categorie: le fibre naturali e le “tecnofibre†; le fibre naturali a loro volta si suddividono in fibre di origine: vegetale (ad esempio, lino, canapa, juta, cocco, cotone,...), animale (ad esempio, seta, e lane di vari animali quali la pecora, il cammello, ...), Before going more into the merits of the present invention, it is good to make a general premise on textile fibers. Textile fibers are divided into two broad categories: natural fibers and â € œtechnofibresâ €; the natural fibers in turn are divided into fibers of origin: vegetable (for example, linen, hemp, jute, coconut, cotton, ...), animal (for example, silk, and wool of various animals such as sheep, camel, ...),
e minerale (ad esempio quelle di amianto, di vetro, ...) che per certi versi sono naturali, in quanto derivano da minerali che si trovano in natura, ma che richiedono dei processi termici e/o chimici per essere ottenute. and mineral (for example those of asbestos, glass, ...) which in some ways are natural, as they derive from minerals found in nature, but which require thermal and / or chemical processes to be obtained.
Le “tecnofibre†a loro volta si usano suddividere in: The â € œtechnofibresâ € in turn are used to subdivide into:
- “artificiali†(ad esempio, raion, viscosa, acetato, ...) prodotte a partire da polimeri organici di origine naturale (ad esempio, cellulosa), e - â € œartificialsâ € (for example, rayon, viscose, acetate, ...) produced starting from organic polymers of natural origin (for example, cellulose), and
- “sintetiche†prodotte a partire da polimeri di sintesi (ad esempio, poliammide, polietilene, polipropilene, ...), tipicamente ricavati dal petrolio. - â € œsyntheticsâ € produced starting from synthetic polymers (for example, polyamide, polyethylene, polypropylene, ...), typically obtained from petroleum.
E' importante ricordare che per la realizzazione di prodotti fatti di fibre tessili, Ã ̈ comune combinare fibre tessili diverse, e che, alla fine degli anni 70, sono entrate nella famiglia delle fibre sintetiche le fibre bi-componenti, con struttura anima guaina, caratterizzate dal diverso punto di fusione tra le due componenti. It is important to remember that for the production of products made of textile fibers, it is common to combine different textile fibers, and that, at the end of the 70s, bi-component fibers, with a sheath core structure, entered the family of synthetic fibers. characterized by the different melting point between the two components.
Prodotti in fibre tessili sono utilizzati in vari settori tecnici oltre che, naturalmente, nell'industria tessile; ad esempio, come componenti termoisolanti e/o fonoassorbenti nell’industria dell'edilizia, come componenti di imbottitura nell’industria dell’arredamento e nell’industria automobilistica, come componenti di filtraggio per varie applicazioni, e nella geotecnica. Textile fiber products are used in various technical sectors as well as, of course, in the textile industry; for example, as heat-insulating and / or sound-absorbing components in the construction industry, as upholstery components in the furniture and automotive industries, as filter components for various applications, and in geotechnics.
Nell’industria tessile, le fibre vengono in genere tessute; in tal modo, il prodotto acquisisce consistenza e resistenza; la tessitura à ̈ una tecnologia nota ed usata da millenni. In the textile industry, fibers are generally woven; in this way, the product acquires consistency and resistance; weaving is a technology known and used for millennia.
E' possibile unire saldamente tra loro le fibre tessili anche in altri modi. Ad esempio, negli anni 50, à ̈ stata ideata la tecnologia del “tessuto non-tessuto†; tale tecnologia usa fibre “sintetiche" (spesso diverse e miscelate tra loro), à ̈ più economica della tessitura e consente ritmi produttivi assai elevati. It is possible to firmly join textile fibers together in other ways as well. For example, in the 1950s, the â € œnon-woven fabricâ € technology was invented; this technology uses "synthetic" fibers (often different and mixed together), it is cheaper than weaving and allows very high production rates.
Sono noti componenti in fibre tessili atti ad espletare funzioni di isolamento termico, di isolamento acustico, di imbottitura, di filtraggio. Per dare consistenza e resistenza a tale genere di prodotti, viene aggiunto alle fibre tessili (materia prima) del materiale legante (ad esempio, resine acriliche, stiroliche, ... ), in soluzione acquosa, che esplica la sua funzione dopo un trattamento termico necessario, in particolare, sia per l’evaporazione della parte umida che per la polimerizzazione della stessa resina utilizzata. Textile fiber components are known which are suitable for performing thermal insulation, acoustic insulation, padding and filtering functions. To give consistency and resistance to this kind of products, binder material (for example, acrylic, styrene resins, ...) in aqueous solution is added to the textile fibers (raw material), which performs its function after a heat treatment. it is necessary, in particular, both for the evaporation of the wet part and for the polymerization of the same resin used.
Negli anni 80, questo processo ha iniziato pian piano ad essere sostituito con l'inserimento, nelle miscele fibrose dei prodotti, di fibre sintetiche bi-componenti che, grazie alla capacità di una delle due componenti di fondere a basse temperature, si legano intimamente con le altre fibre; in questo caso l’effetto legante à ̈ dato dalla parte termofondente delle fibre bi-componenti. In the 1980s, this process gradually began to be replaced with the insertion, in the fibrous mixtures of the products, of bi-component synthetic fibers which, thanks to the ability of one of the two components to melt at low temperatures, bind intimately with the other fibers; in this case the binding effect is given by the heat-melting part of the two-component fibers.
Componenti di queste genere forniscono delle buone prestazioni. Such components provide good performance.
Tuttavia, secondo le tecnologie note, il materiale legante ed il suo trattamento termico comportano un processo produttivo abbastanza complicato e costoso; infatti, ad esempio, il trattamento termico non deve danneggiare la materia prima del componente e quindi pregiudicare la qualità del prodotto finito, richiede una macchina apposita per essere effettuato, utilizza molta energia (in parte tale energia à ̈ sprecata perché va a scaldare la materia prima del componente e l'ambiente circostante), immette anidride carbonica (C02) ed ossido di carbonio (CO) nell’atmosfera. However, according to known technologies, the binder material and its heat treatment involve a rather complicated and expensive production process; in fact, for example, the heat treatment must not damage the raw material of the component and therefore compromise the quality of the finished product, it requires a special machine to be carried out, it uses a lot of energy (in part this energy is wasted because it goes to heat the raw material of the component and the surrounding environment), releases carbon dioxide (C02) and carbon monoxide (CO) into the atmosphere.
Inoltre, la presenza di materiale legante, in particolare materiale termofondente, rende componenti di questo genere non pienamente eco-compatibili anche nel caso in cui la materia prima sia di fibre tessili naturali (e quindi eco-compatibile); peraltro, anche lo spreco di energia e l’immissione di anidride carbonica (C02) e ossido di carbonio (CO) nell’atmosfera, dovuti al processo produttivo, contribuiscono alla non eco-compatibilità . Furthermore, the presence of binder material, in particular heat-melting material, makes components of this kind not fully eco-compatible even if the raw material is made of natural textile fibers (and therefore eco-compatible); however, even the waste of energy and the emission of carbon dioxide (C02) and carbon monoxide (CO) into the atmosphere, due to the production process, contribute to the non-eco-compatibility.
SOMMARIO SUMMARY
Scopo generale della presente invenzione à ̈ quello di migliorare i componenti e le tecnologie note. The general purpose of the present invention is to improve known components and technologies.
Un primo scopo più specifico della presente invenzione à ̈ quello di fornire un componente con funzione di isolamento termico e/o di isolamento acustico e/o di imbottitura e/o di filtraggio che non richieda trattamenti termici per la sua produzione. A first, more specific object of the present invention is to provide a component with a thermal insulation and / or acoustic insulation and / or padding and / or filtering function that does not require heat treatments for its production.
Un secondo scopo più specifico della presente invenzione à ̈ quello di fornire un componente con funzione di isolamento termico e/o di isolamento acustico e/o di imbottitura e/o di filtraggio che possa essere prodotto in modo eco-compatibile. Un terzo scopo più specifico della presente invenzione à ̈ quello di fornire un componente con funzione di isolamento termico e/o di isolamento acustico e/o di imbottitura e/o di filtraggio che sia fatto esclusivamente di materiale o di materiali eco-compatibili. A second, more specific object of the present invention is to provide a component with a thermal insulation and / or acoustic insulation and / or padding and / or filtering function that can be produced in an eco-compatible way. A third, more specific object of the present invention is to provide a component with a thermal insulation and / or acoustic insulation and / or padding and / or filtering function that is made exclusively of eco-compatible material or materials.
Un quarto scopo più specifico della presente invenzione à ̈ quello di fornire un componente con funzione di isolamento termico e/o di isolamento acustico e/o di imbottitura che sia fatto esclusivamente di lana attraverso e prodotto in modo ecocompatibile. A fourth more specific object of the present invention is to provide a component with a thermal insulation and / or acoustic insulation and / or padding function which is made exclusively of through wool and produced in an environmentally friendly manner.
Questi ed altri scopi sono raggiunti dal componente e grazie al metodo ed alla macchina aventi le caratteristiche tecniche espresse nelle rivendicazioni qui annesse che formano parte integrante della presente descrizione. These and other objects are achieved by the component and thanks to the method and the machine having the technical characteristics expressed in the appended claims which form an integral part of the present description.
L’idea alla base della presente invenzione à ̈ quella realizzare il componente a partire da un velo di fibre tessili che viene prima “plissettato" e poi “agugliato†in direzione corrispondente alla lunghezza del velo; in particolare, l’agugliatura viene effettuata in direzione trasversale, preferibilmente perpendicolare, allo spessore del velo plissettato; in tal modo, il componente presenta una certa consistenza e struttura, ma presenta anche una notevole elasticità , sofficità e leggerezza. The idea behind the present invention is to make the component starting from a web of textile fibers which is first "pleated" and then "needle punched" in the direction corresponding to the length of the web; in particular, the Needling is carried out in a transversal direction, preferably perpendicular, to the thickness of the pleated web: in this way, the component has a certain consistency and structure, but also has a remarkable elasticity, softness and lightness.
Si precisa che con “velo†si intende un insieme di fibre tessili che non sono saldamente unite tra loro e che quindi risulta soffice, leggero ed anche trasparente. In generale, il componente in fibre tessili non-tessute secondo la presente invenzione comprende un velo di fibre tessili cardate che à ̈ plissettato in direzione della lunghezza e/o larghezza del componente e che à ̈ agugliata in direzione della lunghezza e/o larghezza del componente. It should be noted that with â € œveilâ € we mean a set of textile fibers which are not firmly joined together and which are therefore soft, light and also transparent. In general, the non-woven textile fiber component according to the present invention comprises a web of carded textile fibers which is pleated in the direction of the length and / or width of the component and which is needled in the direction of the length and / or width of the component. component.
Dette fibre tessili possono essere naturali, preferibilmente tutte di lana. Said textile fibers can be natural, preferably all of wool.
Dette fibre tessili possono essere di due o più materiali. Said textile fibers can be of two or more materials.
Detto componente può comprendere esclusivamente un velo di fibre tessili cardate. Said component can only comprise a veil of carded textile fibers.
Detta direzione di agugliatura può corrispondere a detta direzione di plissettatura. Lo spessore di detto componente può essere costante e corrispondere alla dimensione della plissettatura. Said needling direction can correspond to said pleating direction. The thickness of this component can be constant and correspond to the dimension of the pleating.
Detta dimensione della plissettatura può avere un valore scelto tra 4 millimetri e 40 millimetri. Said dimension of the pleating can have a value chosen between 4 millimeters and 40 millimeters.
In generale, il metodo per produrre un componente in fibre tessili non-tessute secondo la presente invenzione comprende le fasi di: In general, the method for producing a component in non-woven textile fibers according to the present invention comprises the steps of:
- alimentare in modo continuo un lungo velo di fibre tessili cardate verso una zona di lavorazione, - continuously feed a long web of carded textile fibers towards a processing area,
- effettuare ripetutamente operazioni di plissettatura su detto velo secondo una direzione corrispondente alla lunghezza di detto velo mediante una testa di plissettatura in detta zona di lavorazione, - repeatedly carrying out pleating operations on said web in a direction corresponding to the length of said web by means of a pleating head in said processing area,
- effettuare ripetutamente operazioni di agugliatura su detto velo plissettato secondo una direzione corrispondente alla lunghezza di detto velo mediante una testa di agugliatura in detta zona di lavorazione, e - repeatedly carrying out needling operations on said pleated web in a direction corresponding to the length of said web by means of a needling head in said processing area, and
- fare avanzare in modo continuo allontanando da detta zona di lavorazione detto velo plissettato ed agugliata; - making said pleated and needle-punched web advance continuously away from said working area;
in tal modo, le pieghe della plissettatura risultano in direzione trasversale, più in particolare perpendicolare, alla lunghezza di detto velo. in this way, the folds of the pleating are in a transverse direction, more particularly perpendicular, to the length of said web.
Dette operazioni di plissettatura possono essere alternate a dette operazioni di agugliatura. Said pleating operations can be alternated with said needling operations.
Ad ogni operazione di plissettatura può seguire immediatamente una operazione di agugliatura. Each pleating operation can be immediately followed by a needling operation.
Detta testa di plissettatura può effettuare un movimento traslatorio alternato in una direzione corrispondente alla lunghezza di detto velo. Said pleating head can perform an alternating translational movement in a direction corresponding to the length of said web.
Detta testa di agugliatura può effettuare un movimento traslatorio alternato in una direzione corrispondente alla lunghezza di detto velo. Said needling head can perform an alternating translational movement in a direction corresponding to the length of said web.
Detta testa di agugliatura può effettuare un movimento traslatorio alternato in una direzione perpendicolare allo spessore di detto velo dopo che detto velo à ̈ stato plissettato. Said needling head can perform an alternating translational movement in a direction perpendicular to the thickness of said web after said web has been pleated.
Il movimento di detta testa di agugliatura può essere tale da completare precedenti operazioni di plissettatura. The movement of said needling head can be such as to complete previous pleating operations.
Detta testa di agugliatura può comprendere una pluralità di aghi di agugliatura con una densità di 1-9 aghi al centimetro quadrato. Said needling head can comprise a plurality of needling needles with a density of 1-9 needles per square centimeter.
Detta testa di agugliatura può comprendere una pluralità di aghi di agugliatura con una lunghezza di 4-8 centimetri. Said needling head can comprise a plurality of needling needles with a length of 4-8 centimeters.
In generale, una macchina per produrre un componente in fibre tessili non-tessute secondo la presente invenzione, comprende: In general, a machine for producing a component in non-woven textile fibers according to the present invention comprises:
- mezzi atti ad alimentare in modo continuo un lungo velo di fibre tessili cardate verso una zona di lavorazione, - means for continuously feeding a long web of carded textile fibers towards a processing area,
- una testa di plissettatura posta in detta zona di lavorazione ed atta ad effettuare ripetutamente operazioni di plissettatura su detto velo, - a pleating head placed in said processing area and able to repeatedly carry out pleating operations on said web,
- una testa di aguglia tura posta in detta zona di lavorazione ed atta ad effettuare ripetutamente operazioni di agugliatura su detto velo plissettato, e - a needling head placed in said working area and able to repeatedly carry out needling operations on said pleated web, and
- mezzi atti a fare avanzare in modo continuo detto velo plissettato ed agugliata allontanandolo da detta zona di lavorazione. - means suitable for continuously advancing said pleated and needled web away from said working area.
La macchina può inoltre comprendere mezzi atti a realizzare il metodo some sopra esposto. The machine can also comprise means suitable for carrying out the method described above.
ELENCO DELLE FIGURE LIST OF FIGURES
Le caratteristiche tecniche della presente invenzione nonché i suoi vantaggi risulteranno chiari dalla descrizione che segue da considerare congiuntamente ai disegni qui annessi in cui: The technical characteristics of the present invention as well as its advantages will become clear from the following description to be considered in conjunction with the attached drawings in which:
Fig.1 mostra schematicamente un velo di fibre tessili, Fig. 1 schematically shows a web of textile fibers,
Fig.2 mostra schematicamente il velo di Fig.1 dopo che à ̈ stato plissettato, Fig.3 mostra schematicamente il velo di Fig.2 dopo che à ̈ stato agugliata, Fig.4 mostra schematicamente una parte di un esempio di realizzazione di una macchina secondo la presente invenzione, e Fig.2 schematically shows the veil of Fig.1 after it has been pleated, Fig.3 schematically shows the veil of Fig.2 after it has been needled, Fig.4 schematically shows a part of an example of realization of a machine according to the present invention, e
Fig.5 mostra schematicamente la testa di agugliatura della macchina di Fig.4 mentre aguglia un piccolo tratto di un velo di fibre tessili. Fig.5 schematically shows the needling head of the machine of Fig.4 while it is needling a small section of a web of textile fibers.
DESCRIZIONE DETTAGLIATA DETAILED DESCRIPTION
Sia tale descrizione che tali disegni sono da considerare solo a fini illustrativi e quindi non limitativi; pertanto, la presente invenzione potrà essere implementata secondo altre e diverse forme realizzative; inoltre, si deve tenere presente che tali disegni sono schematici e semplificati. Both this description and these drawings are to be considered for illustrative purposes only and therefore not for limitation purposes; therefore, the present invention can be implemented according to other and different embodiments; furthermore, it must be borne in mind that such drawings are schematic and simplified.
Un esempio di realizzazione di un componente 1 in fibre tessili non tessute secondo la presente invenzione à ̈ mostrato in Fig.3. Esso deriva da un velo 2 di fibre tessili cardate, in particolare di lana cardata mostrato in Fig.1 in condizione orizzontale prima della lavorazione oggetto della presente invenzione. Il velo 2 à ̈ stato plissettato, come si vede in Fig.2, secondo una direzione orizzontale. In seguito, il velo 2 à ̈ stato agugliato, come si vede in Fig.3, secondo una direzione orizzontale. An example of embodiment of a component 1 in non-woven textile fibers according to the present invention is shown in Fig. 3. It derives from a web 2 of carded textile fibers, in particular of carded wool shown in Fig.1 in a horizontal condition before the processing object of the present invention. Veil 2 has been pleated, as seen in Fig. 2, in a horizontal direction. Subsequently, the veil 2 was needled, as seen in Fig. 3, according to a horizontal direction.
L’operazione di agugliatura, effettuata con un numero limitato di aghi (in particolare 1-9 al centimetro quadrato), lega il velo 2 in direzione orizzontale pur senza nessun materiale di apporto, in particolare senza l’uso di filo, e compatta un po’ il velo in direzione orizzontale; in tal modo, il componente 1 presenta una certa consistenza e struttura; tuttavia, poiché il numero di aghi di agugliatura à ̈ limitato, il componente 1 mantiene una notevole elasticità , sofficità e leggerezza similmente a quelle del velo 2 da cui deriva. The needling operation, carried out with a limited number of needles (in particular 1-9 per square centimeter), binds the web 2 in a horizontal direction even without any filler material, in particular without the use of thread, and compact the veil a little in the horizontal direction; in this way, component 1 has a certain consistency and structure; however, since the number of needles is limited, component 1 maintains a remarkable elasticity, softness and lightness similar to those of the web 2 from which it derives.
Come si comprende da Fig.1, Fig.2, Fig.3, la direzione di agugliatura corrisponde vantaggiosamente a quella di plissettatura, anche se ciò non à ̈ strettamente indispensabile per la presente invenzione. As can be understood from Fig.1, Fig.2, Fig.3, the needling direction advantageously corresponds to that of pleating, even if this is not strictly indispensable for the present invention.
Il componente 1 costituisce una sorta di materassino morbido e pieghevole di spessore S costante corrispondente alla dimensione della plissettatura; tale dimensione di plissettatura à ̈ di 20 millimetri; alternativamente, tale dimensione di plissettatura può avere un valore scelto tra 4 millimetri e 40 millimetri. Non si esclude che, secondo esempi di realizzazione alternativi, il componente potrebbe avere un spessore variabile (derivante da una dimensione di plissettatura variabile) e costituire un materassino sagomato. Component 1 constitutes a kind of soft and pliable mattress of constant thickness S corresponding to the dimension of the pleating; this pleating dimension is 20 millimeters; alternatively, this pleating dimension can have a value chosen between 4 millimeters and 40 millimeters. It is not excluded that, according to alternative embodiments, the component could have a variable thickness (deriving from a variable pleating dimension) and constitute a shaped mat.
La presente invenzione si riferisce anche ad una macchina per produrre un componente in fibre tessili non-tessute come quello appena descritto o un componente analogo. The present invention also relates to a machine for producing a component in non-woven textile fibers such as the one just described or an analogous component.
Nel seguito verrà descritta, con l’ausilio di Fig.4 e di Fig.5, solo la parte di tale macchina che esplica le lavorazioni più innovative, le restanti lavorazioni vengono quindi fatte in modo tradizionale. In the following we will describe, with the help of Fig.4 and Fig.5, only the part of this machine that carries out the most innovative processes, the remaining processes are then carried out in the traditional way.
Fig.4 mostra: Fig. 4 shows:
- mezzi 3 atti ad alimentare in modo continuo un lungo velo 4 di fibre tessili cardate verso una zona di lavorazione 5, - means 3 adapted to continuously feed a long web 4 of carded textile fibers towards a processing area 5,
- una testa di plissettatura 6 posta in detta zona di lavorazione 5 ed atta ad effettuare ripetutamente operazioni di plissettatura su detto velo 4, - a pleating head 6 placed in said processing area 5 and able to repeatedly carry out pleating operations on said web 4,
- una testa di agugliatura 7 posta in detta zona di lavorazione 5 ed atta ad effettuare ripetutamente operazioni di agugliatura su detto velo 4 dopo che à ̈ stato plissettato, e - a needling head 7 placed in said working area 5 and able to repeatedly carry out needling operations on said web 4 after it has been pleated, and
- mezzi 8 atti a fare avanzare in modo continuo detto velo 4 dopo che à ̈ stato plissettato ed agugliato allontanandolo da detta zona di lavorazione 5. - means 8 for continuously advancing said web 4 after it has been pleated and needled away from said working area 5.
In Fig.4, il velo 4 Ã ̈ continuo, si estende longitudinalmente da sinistra verso destra, e si muove progressivamente da sinistra verso destra, passando per la zona di lavorazione 5, mentre procede la lavorazione. In Fig. 4, the web 4 is continuous, extends longitudinally from left to right, and moves progressively from left to right, passing through the processing area 5, while processing proceeds.
Come detto metodi ed apparecchi per produrre veli di fibre tessili cardate sono noti e già in uso; pertanto, non verranno qui descritti. As said, methods and apparatuses for producing webs of carded textile fibers are known and already in use; therefore, they will not be described here.
Dopo le lavorazioni mostrate schematicamente in Fig.4, il velo plissettato ed agugliato può essere, ad esempio arrotolato formando così un rotolo oppure tagliato formando così una pluralità di riquadri. After the processes shown schematically in Fig.4, the pleated and needle-punched veil can be, for example, rolled to form a roll or cut to form a plurality of squares.
I mezzi 3 e 8 possono essere ad esempio realizzati mediante nastri trasportatori. La testa di plissettatura 6 Ã ̈ schematizzata, in Fig.4, come una barra rettilinea atta a piegare il velo. The means 3 and 8 can be made, for example, by means of conveyor belts. The pleating head 6 is schematized, in Fig. 4, as a straight bar suitable for folding the web.
La testa di agugliatura 7 à ̈ schematizzata, in Fig.4 e Fig.5, come una barra 71 rettilinea dotata di una pluralità di aghi (di agugliatura) 72; gli aghi 72 sono di lunghezza tale da attraversare una pluralità di strati di velo 4; in Fig.5, gli aghi 72 attraversano sette strati di velo 4 e raggiungono l’ottavo strato. Non si forniscono qui molti dettagli sulla agugliatura perché tale tecnica à ̈ di per sé nota ed usata nel settore dei tessuti non-tessuti; à ̈ da notare che, secondo la presente invenzione, il materiale da agugliare non viene stretto tra piastre come invece avviene nel caso dei tessuti non-tessuti. The needling head 7 is schematized, in Fig.4 and Fig.5, as a straight bar 71 equipped with a plurality of needles (needling) 72; the needles 72 are of such length as to pass through a plurality of layers of web 4; in Fig.5, the needles 72 pass through seven layers of veil 4 and reach the eighth layer. Not many details are given here on needling because this technique is known per se and used in the field of non-woven fabrics; It should be noted that, according to the present invention, the material to be needled is not squeezed between plates as is the case with non-woven fabrics.
Secondo l’esempio di realizzazione di Fig.4, il nastro trasportatore 3 fa avanzare il velo 4 longitudinalmente verso la zona di lavorazione 5 da sinistra verso destra; la zona di lavorazione 5 si trova più in basso (ad esempio 5-20 cm più in basso) della zona di avanzamento del velo 4 definita dal nastro trasportatore 3. According to the example of embodiment of Fig.4, the conveyor belt 3 makes the web 4 advance longitudinally towards the processing area 5 from left to right; the processing area 5 is located lower (for example 5-20 cm lower) than the web advancement area 4 defined by the conveyor belt 3.
Secondo l’esempio di realizzazione di Fig.4, la testa di plissettatura 6 muovendosi prima dall’alto verso il basso da una prestabilita posizione superiore (Fig.4) ad una prestabilita posizione inferiore e poi dal basso verso l’alto dalla prestabilita posizione inferiore alla prestabilita posizione superiore (Fig.4) crea prima una piega del velo 4 verso il basso e poi una piega del velo verso l’alto; in tal modo si esegue una operazione di plissettatura sul velo 4 secondo una direzione corrispondente alla lunghezza del velo stesso (ossia le pieghe risultano trasversali alla lunghezza del velo). According to the example of realization in Fig. 4, the pleating head 6 first moves from the top to the bottom from a predetermined upper position (Fig. 4) to a predetermined lower position and then from the bottom to the top from the predetermined lower position to the predetermined upper position (Fig.4) it first creates a fold of the web 4 downwards and then a fold of the web towards the top; in this way a pleating operation is carried out on the web 4 in a direction corresponding to the length of the web itself (ie the folds are transversal to the length of the web).
Secondo l’esempio di realizzazione di Fig.4, la testa di agugliatura 7 muovendosi prima da sinistra verso destra da una prestabilita posizione lontana dal velo (Fig.4) ad una prestabilita posizione adiacente al velo (Fig.5) e poi da destra verso sinistra dalla prestabilita posizione adiacente al velo (Fig.5) alla prestabilita posizione lontana dal velo (Fig.4) esegue una operazione di agugliatura sul velo plissettato secondo una direzione corrispondente alla lunghezza del velo stesso. Secondo l’esempio di realizzazione di Fig.4, il nastro trasportatore 8 fa avanzare da sinistra verso destra in modo continuo il velo 4, dopo che à ̈ stato plissettato ed agugliato, allontanando dalla zona di lavorazione 5. According to the example of embodiment of Fig. 4, the needling head 7 first moves from left to right from a predetermined position away from the web (Fig. 4) to a predetermined position adjacent to the web (Fig. 5) and then from right to left from the predetermined position adjacent to the web (Fig. 5) to the predetermined position far from the web (Fig. 4), it performs a needling operation on the pleated web in a direction corresponding to the length of the web itself. According to the example of embodiment of Fig. 4, the conveyor belt 8 continuously advances the web 4 from left to right, after it has been pleated and needled, moving away from the processing area 5.
Nei paragrafi precedenti sono state indicate bene precise direzioni e disposizioni che sono, in effetti, quelle più tipiche e vantaggiose per implementare la presente invenzione, anche se non sono necessariamente le uniche possibili. In the preceding paragraphs precise directions and dispositions have been clearly indicated which are, in fact, the most typical and advantageous ones for implementing the present invention, even if they are not necessarily the only possible ones.
Come si comprende da Fig.4, le operazioni di plissettatura e le operazioni di agugliatura si ripetono; in particolare, le operazioni di plissettatura sono alternate alle operazioni di agugliatura; più in particolare e vantaggiosamente, ad ogni operazione di plissettatura segue immediatamente una operazione di agugliatura. Secondo l’esempio di realizzazione di Fig.4, la testa di plissettatura 6 effettua un movimento traslatorio alternato in una direzione perpendicolare al velo 4, la testa di agugliatura 7 effettua un movimento traslatorio alternato in una direzione longitudinale al velo 4 come si muove (direzione D1) nella macchina verso la zona di lavorazione ed a quello del componente finito come si muove (direzione D2) nella macchina via dalla zona di lavorazione (per essere precisi, la testa 7 con i suoi aghi 72 lavora sul velo 4 secondo una direzione perpendicolare al velo 4, ma dopo che il velo 4 à ̈ stato plissettato, ossia piegato più volte); specificamente, la testa di agugliatura 7 à ̈ conformata e si muove in modo tale da completare precedenti operazioni di plissettatura, ossia quando la una barra 71 della testa 7 si muove verso la prestabilita posizione adiacente al velo (Fig.5), lo schiaccia un po’ e rimarca le pieghe della plissettatura. As can be understood from Fig.4, the pleating operations and the needling operations are repeated; in particular, the pleating operations are alternated with the needling operations; more particularly and advantageously, a needling operation immediately follows each pleating operation. According to the example of embodiment of Fig. 4, the pleating head 6 performs an alternating translational movement in a direction perpendicular to the web 4, the needling head 7 performs an alternating translational movement in a direction longitudinal to the web 4 as it moves (direction D1) in the machine towards the processing area and to that of the finished component as it moves (direction D2) in the machine away from the processing area (to be precise, the head 7 with its needles 72 works on the web 4 according to a direction perpendicular to the veil 4, but after the veil 4 has been pleated, ie folded several times); specifically, the needling head 7 is shaped and moves in such a way as to complete previous pleating operations, i.e. when a bar 71 of the head 7 moves towards the predetermined position adjacent to the web (Fig. 5), it squeezes a a little bit and highlights the folds of the pleating.
Secondo l’esempio di realizzazione di Fig.4 e Fig.5, la testa di agugliatura 7 comprende una pluralità di aghi di agugliatura 72 con una densità preferita di aghi al centimetro quadrato che va da 1 a 9 e con una lunghezza preferita che va da 4 a 8 centimetri. According to the example of embodiment of Fig.4 and Fig.5, the needling head 7 comprises a plurality of needling needles 72 with a preferred density of needles per square centimeter ranging from 1 to 9 and with a preferred length which ranges from 4 to 8 centimeters.
Claims (13)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000019A ITCO20110019A1 (en) | 2011-05-24 | 2011-05-24 | COMPONENT IN NON-WOVEN TEXTILE FIBERS AND RELATED METHOD AND MACHINE FOR ITS PRODUCTION |
| PCT/IB2012/052941 WO2012160547A1 (en) | 2011-05-24 | 2012-06-11 | Component made of non-woven natural textile fibres, and method and machine for the production thereof |
| EP12738195.2A EP2739775A1 (en) | 2011-05-24 | 2012-06-11 | Component made of non-woven natural textile fibres, and method and machine for the production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000019A ITCO20110019A1 (en) | 2011-05-24 | 2011-05-24 | COMPONENT IN NON-WOVEN TEXTILE FIBERS AND RELATED METHOD AND MACHINE FOR ITS PRODUCTION |
Publications (1)
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|---|---|
| ITCO20110019A1 true ITCO20110019A1 (en) | 2012-11-25 |
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Family Applications (1)
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| IT000019A ITCO20110019A1 (en) | 2011-05-24 | 2011-05-24 | COMPONENT IN NON-WOVEN TEXTILE FIBERS AND RELATED METHOD AND MACHINE FOR ITS PRODUCTION |
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| EP (1) | EP2739775A1 (en) |
| IT (1) | ITCO20110019A1 (en) |
| WO (1) | WO2012160547A1 (en) |
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| ITCO20130028A1 (en) * | 2013-06-27 | 2014-12-28 | Brebey S R L | METHOD FOR REMOVING HYDROCARBONS FROM WATER MIRRORS. |
| WO2017000030A1 (en) * | 2015-06-30 | 2017-01-05 | Everbright Innovations Pty Ltd | Apparatus for making pleated fibrous webs and method |
| IT201600078794A1 (en) * | 2016-07-27 | 2018-01-27 | Brebey S R L | ABSORBENT DEVICE AND METHOD FOR THE RECOVERY OF HYDROCARBONS SPREADED ON THE AQUEOUS SURFACES |
| CN113584716A (en) * | 2021-08-02 | 2021-11-02 | 苏州德崧净化有限公司 | Filtering fabric and production process thereof |
| CN113802268A (en) * | 2021-08-02 | 2021-12-17 | 苏州德崧净化有限公司 | Needling process |
| IT202100005756U1 (en) * | 2021-12-14 | 2023-06-14 | Brebey Soc Cooperativa | OPTIMIZED COMPONENT IN NATURAL-BASED NON-WOVEN TEXTILE FIBERS |
| IT202200000044U1 (en) * | 2022-01-07 | 2023-07-07 | Brebey Soc Cooperativa | SELF-SUPPORTING COMPOSITE PANEL IN NATURAL TEXTILE FIBERS |
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|---|---|---|---|---|
| EP0350627A1 (en) * | 1988-06-13 | 1990-01-17 | INCOTEX spol. s r. o. | Apparatus for making voluminous fibre layers |
| GB2268197A (en) * | 1992-06-23 | 1994-01-05 | Malimo Maschinenbau | A fleece material |
| DE4226342C1 (en) * | 1992-08-08 | 1993-06-24 | Guenther 8931 Mickhausen De Wolff | Prodn. of insulating material - using sheep wool treated with boron salt soln. |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012160547A8 (en) | 2014-07-10 |
| EP2739775A1 (en) | 2014-06-11 |
| WO2012160547A1 (en) | 2012-11-29 |
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