ES2738200A1 - Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) - Google Patents
Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) Download PDFInfo
- Publication number
- ES2738200A1 ES2738200A1 ES201830732A ES201830732A ES2738200A1 ES 2738200 A1 ES2738200 A1 ES 2738200A1 ES 201830732 A ES201830732 A ES 201830732A ES 201830732 A ES201830732 A ES 201830732A ES 2738200 A1 ES2738200 A1 ES 2738200A1
- Authority
- ES
- Spain
- Prior art keywords
- nonwoven fabric
- fibers
- segmented
- fabric according
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
DESCRIPCIÓNDESCRIPTION
Tejido no tejido y procedimiento para su fabricaciónNonwoven fabric and manufacturing procedure
La presente invención se refiere a un tejido no tejido y a un procedimiento para su fabricación, en particular, producido mediante cardado en paralelo e hidroentangletado de fibras segmentadas.The present invention relates to a nonwoven fabric and a process for its manufacture, in particular, produced by parallel carding and hydroentangleting of segmented fibers.
Antecedentes de la invenciónBackground of the invention
Se conocen varias tecnologías diferentes para la elaboración de tejidos no tejidos. Básicamente, estas técnicas se diferencian, por un lado, en el tipo de materia prima utilizada y su alimentación/procesado en la línea de producción y, por otro lado, en la manera de ligar/enlazar la materia prima para formar el tejido final.Several different technologies are known for making nonwoven fabrics. Basically, these techniques differ, on the one hand, in the type of raw material used and its feeding / processing in the production line and, on the other hand, in the way of linking / linking the raw material to form the final fabric.
Así, la materia prima puede ser filamento continuo, fibras segmentadas o pulpa.Thus, the raw material can be continuous filament, segmented fibers or pulp.
En el caso de fibras segmentadas, el modo de procesado en la línea de producción es cardado y el modo de ligado/enlazado puede ser hidroentangletado (se ligan las fibras mecánicamente con agua a presión), punzonado con agujas (se enlazan las fibras mecánicamente con agujas), unión térmica (se enlazan las fibras por tratamiento con aire caliente o por calandrado) o unión química (se enlazan las fibras químicamente mediante la adición de aglomerantes, polímeros, etc.).In the case of segmented fibers, the processing mode in the production line is carded and the bonding / bonding mode can be hydroentangled (the fibers are mechanically bound with pressurized water), needle punched (the fibers are mechanically linked with needles), thermal bonding (the fibers are bonded by hot air treatment or by calendering) or chemical bonding (the fibers are chemically bonded by the addition of binders, polymers, etc.).
Una de las principales aplicaciones de los tejidos no tejidos es su utilización para la elaboración de productos de higiene, médicos, geotextiles, industriales, etc.One of the main applications of nonwoven fabrics is its use for the preparation of hygiene, medical, geotextile, industrial products, etc.
Es conocido que, de entre todas las tecnologías para la fabricación de tejido no tejido, la técnica preferible para la elaboración de productos de higiene y médico es la que combina el proceso de cardado e hidroentangletado (conocido como “spunlace”) de fibras segmentadas (mezcla de fibras de origen natural y fibras sintéticas), debido a las siguientes ventajas que aporta, respecto al resto de métodos de fabricación mencionados previamente:It is known that, among all the technologies for the manufacture of non-woven fabric, the preferable technique for the elaboration of hygiene and medical products is the one that combines the process of carding and hydroentangleting (known as “spunlace”) of segmented fibers ( mixture of fibers of natural origin and synthetic fibers), due to the following advantages that it brings, with respect to the other manufacturing methods mentioned previously:
Está libre de aditivos químicos: el hidroentangletado es el proceso óptimo para productos con uso final en contacto con la piel, ya que el ligado de las fibras se realiza por medio de agua a presión, sin añadir ningún tipo de sustancia química al tejido. It is free of chemical additives: hydroentangleting is the optimal process for products with final use in contact with the skin, since the fiber is bonded by means of pressurized water, without adding any chemical substance to the fabric.
Suavidad y esponjosidad: mediante el proceso de cardado e hidroentangletado se mantiene el tacto esponjoso y suave de la fibra original.Softness and fluffiness: the spongy and soft touch of the original fiber is maintained through the carding and hydroentangleting process.
Posibilidad de moldeado: en el proceso de hidroentangletado de las fibras es posible generar un patrón en el tejido (“hydroembossing”).Possibility of molding: in the process of hydroentangleting of the fibers it is possible to generate a pattern in the tissue ("hydroembossing").
Bajo coste: permite trabajar a mayores velocidades que punzonado con agujas y no es necesario aplicar tiempos largos de secado para enlazar las fibras.Low cost: allows working at higher speeds than needle punching and it is not necessary to apply long drying times to bind the fibers.
Sin embargo, una limitación relacionada con la tecnología de tejido no tejido hidroentangletado es la estabilidad dimensional del producto en sentido transversal.However, a limitation related to hydroentangled nonwoven technology is the dimensional stability of the product in a transverse direction.
El parámetro por el que se determina la estabilidad dimensional en sentido transversal es la resistencia del tejido no tejido a la tracción en sentido transversal.The parameter by which dimensional stability is determined in the transverse direction is the resistance of the non-woven fabric to traction in the transverse direction.
La resistencia a la tracción en sentido transversal de un tejido no tejido se mide según la norma EDANA NWSP 110.4.R0 (15) y se expresa en N/5 cm.The transverse tensile strength of a nonwoven fabric is measured according to the EDANA NWSP 110.4.R0 (15) standard and is expressed in N / 5 cm.
La estabilidad dimensional en sentido transversal de un tejido no tejido hidroentangletado depende de la orientación de las fibras tras el proceso de cardado.The cross-sectional dimensional stability of a non-woven hydroentangled fabric depends on the orientation of the fibers after the carding process.
De este modo, cuando las cardas se disponen en modo paralelo, las fibras quedan orientadas en sentido longitudinal y, en consecuencia, el tejido no tejido resultante presenta una baja estabilidad en sentido transversal.Thus, when the cards are arranged in parallel mode, the fibers are oriented longitudinally and, consequently, the resulting non-woven fabric has a low stability in the transverse direction.
Alternativamente, las cardas se pueden disponer en sentido perpendicular. En este caso, el tejido no tejido resultante es dimensionalmente estable en sentido transversal, pero la velocidad de trabajo es muy baja, por lo que el coste de este proceso es muy elevado.Alternatively, the cards can be arranged perpendicularly. In this case, the resulting nonwoven fabric is dimensionally stable in the transverse direction, but the working speed is very low, so the cost of this process is very high.
Además, en el caso de un tejido no tejido hidroentangletado cardado en paralelo hidromoldeado, la estabilidad dimensional en sentido transversal es aún menor.Furthermore, in the case of a hydro-angled non-woven fabric carded in parallel hydromolded, the dimensional stability in transverse direction is even lower.
Por lo tanto, un objetivo de la presente invención es proporcionar un tejido no tejido y un procedimiento para su fabricación, presentando el tejido preferiblemente un patrón, dimensionalmente estable en sentido transversal producido mediante cardado en paralelo e hidroentangletado de fibras segmentadas. Therefore, an objective of the present invention is to provide a nonwoven fabric and a process for its manufacture, the fabric preferably presenting a dimensionally stable pattern in transverse direction produced by parallel carding and hydroentangleting of segmented fibers.
Descripción de la invenciónDescription of the invention
Con el tejido no tejido y el procedimiento de la invención se consiguen resolver los inconvenientes citados, presentando otras ventajas que se describirán a continuación.With the non-woven fabric and the process of the invention, the aforementioned drawbacks are resolved, presenting other advantages that will be described below.
De acuerdo con un primer aspecto, la presente invención se refiere a un tejido no tejido, que comprende una pluralidad de fibras segmentadas, y se caracteriza por que dichas fibras segmentadas están cardadas en paralelo, hidroentangletadas e hidromoldeadas.In accordance with a first aspect, the present invention relates to a nonwoven fabric, comprising a plurality of segmented fibers, and is characterized in that said segmented fibers are carded in parallel, hydroentangled and hydromolded.
De esta manera, se consigue un tejido no tejido con una resistencia a la tracción en sentido transversal mayor que los tejidos no tejidos convencionales.In this way, a non-woven fabric with a tensile strength in the transverse direction greater than conventional non-woven fabrics is achieved.
De acuerdo con una realización preferida, el tejido no tejido de acuerdo con la presente invención tiene un patrón perforado.According to a preferred embodiment, the nonwoven fabric according to the present invention has a perforated pattern.
Según realizaciones alternativas, dichas fibras pueden ser de origen natural, de origen sintético o una combinación de fibras de origen natural y de origen sintético.According to alternative embodiments, said fibers may be of natural origin, of synthetic origin or a combination of fibers of natural origin and of synthetic origin.
Por ejemplo, el tejido no tejido de acuerdo con la presente invención comprende entre un 40% y un 100% de fibras de origen natural, tal como entre un 60% y un 100% de fibras de origen natural.For example, the nonwoven fabric according to the present invention comprises between 40% and 100% of naturally occurring fibers, such as between 60% and 100% of naturally occurring fibers.
De acuerdo con dos ejemplos alternativos, el tejido no tejido de acuerdo con la presente invención comprende un 70% de fibras de viscosa y un 30% de fibras de poliéster, o el tejido no tejido de acuerdo con la presente invención comprende un 100% de fibras de poliéster.According to two alternative examples, the nonwoven fabric according to the present invention comprises 70% viscose fibers and 30% polyester fibers, or the nonwoven fabric according to the present invention comprises 100% polyester fibers
Además, preferentemente, en el tejido no tejido de acuerdo con la presente invención, su gramaje está comprendido entre 40 y 75 g/m2.Furthermore, preferably, in the nonwoven fabric according to the present invention, its weight is comprised between 40 and 75 g / m2.
Según un segundo aspecto, la presente invención se refiere a un procedimiento para la fabricación del tejido no tejido tal como se ha descrito anteriormente, que se caracteriza por que comprende las etapas de:According to a second aspect, the present invention relates to a process for the manufacture of nonwoven fabric as described above, characterized in that it comprises the steps of:
- cardado en paralo de las fibras segmentadas del tejido no tejido;- parallel carding of segmented fibers of nonwoven fabric;
- hidroentangletado; e- hydroentangleted; and
- hidromoldeado. - hydromolded.
Además, el procedimiento de acuerdo con la presente invención también puede comprender la etapa de realizar un patrón perforado sobre el tejido no tejido.In addition, the process according to the present invention may also comprise the step of making a perforated pattern on the nonwoven fabric.
De acuerdo con una realización preferida, el procedimiento de acuerdo con la presente invención comprende una etapa de tratamiento adicional.In accordance with a preferred embodiment, the method according to the present invention comprises an additional treatment step.
Según una primera realización, que se realiza preferentemente cuando el tejido no tejido comprende fibras de origen natural, dicha etapa de tratamiento adicional comprende la condensación de las fibras segmentadas durante el hidroentangletado.According to a first embodiment, which is preferably performed when the nonwoven fabric comprises fibers of natural origin, said additional treatment step comprises the condensation of the segmented fibers during the hydroentangleting.
Según una segunda realización, que se realiza preferentemente cuando el tejido no tejido comprende fibras de origen sintético, dicha etapa de tratamiento adicional comprende el calandrado del tejido no tejido a una temperatura mayor que 200 °C.According to a second embodiment, which is preferably performed when the nonwoven fabric comprises fibers of synthetic origin, said additional treatment step comprises the calendering of the nonwoven fabric at a temperature greater than 200 ° C.
Descripción de realizaciones preferidasDescription of preferred embodiments
A continuación, se describen dos realizaciones del tejido no tejido de acuerdo con la presente invención.Next, two embodiments of the nonwoven fabric according to the present invention are described.
Realización 1:Embodiment 1:
- Tejido no tejido hidroentangletado cardado en paralelo- Hydro-angled non-woven fabric carded in parallel
- Hidromoldeado- Hydromolded
- Gramaje comprendido entre 40 y 75 g/m2- Weight between 40 and 75 g / m2
- Del 40 al 100 % de fibras de origen natural (tales como viscosa, Lyocell® o PLA)- From 40 to 100% of fibers of natural origin (such as viscose, Lyocell® or PLA)
- Se condensa la fibra en el proceso de hidroentangletado,- The fiber is condensed in the hydroentangleting process,
- El tejido no tejido resultante presenta una resistencia a la tracción en sentido transversal mayor que 27 N/5 cm- The resulting nonwoven fabric has a tensile strength in a transverse direction greater than 27 N / 5 cm
Realización 2:Embodiment 2:
- Tejido no tejido hidroentangletado cardado en paralelo- Hydro-angled non-woven fabric carded in parallel
- Hidromoldeado- Hydromolded
- Gramaje comprendido entre 40 y 75 g/m2- Weight between 40 and 75 g / m2
- Del 60 al 100 % de fibras sintéticas (tales como PET, PP, PE o fibras de dos componentes) - Tras el proceso de hidroentangletado y secado, el tejido no tejido se pasa por una calandra a una temperatura mayor que 200 °C- From 60 to 100% of synthetic fibers (such as PET, PP, PE or two component fibers) - After the hydroentangleting and drying process, the nonwoven fabric is passed through a calender at a temperature greater than 200 ° C
- El tejido no tejido resultante presenta una resistencia a la tracción en sentido transversal mayor que 40 N/5 cm- The resulting nonwoven fabric has a tensile strength in transverse direction greater than 40 N / 5 cm
A continuación, se incluye los valores de resistencia a la tracción de los dos ejemplos de acuerdo con la presente invención.Next, the tensile strength values of the two examples according to the present invention are included.
A pesar de que se ha hecho referencia a una realización concreta de la invención, es evidente para un experto en la materia que el tejido no tejido y el procedimiento descritos son susceptibles de numerosas variaciones y modificaciones, y que todos los detalles mencionados pueden ser sustituidos por otros técnicamente equivalentes, sin apartarse del ámbito de protección definido por las reivindicaciones adjuntas. Although reference has been made to a specific embodiment of the invention, it is apparent to one skilled in the art that the nonwoven fabric and the process described are susceptible of numerous variations and modifications, and that all the mentioned details can be substituted. by others technically equivalent, without departing from the scope of protection defined by the appended claims.
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201830732A ES2738200A1 (en) | 2018-07-20 | 2018-07-20 | Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201830732A ES2738200A1 (en) | 2018-07-20 | 2018-07-20 | Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2738200A1 true ES2738200A1 (en) | 2020-01-20 |
Family
ID=69159409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201830732A Pending ES2738200A1 (en) | 2018-07-20 | 2018-07-20 | Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2738200A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726458A (en) * | 1993-07-09 | 1995-01-27 | Japan Vilene Co Ltd | Nonwoven fabric interliner and its production |
| JPH1161617A (en) * | 1997-08-15 | 1999-03-05 | Unitika Ltd | Short fiber nonwoven fabric and its production |
| US20090087475A1 (en) * | 2007-09-28 | 2009-04-02 | Astrid Annette Sheehan | Non-Wovens With High Interfacial Pore Size And Method Of Making Same |
| JP2010007188A (en) * | 2008-06-24 | 2010-01-14 | Unitika Ltd | Method for producing vinylon staple fiber spun lace nonwoven fabric |
| JP2010144281A (en) * | 2008-12-18 | 2010-07-01 | Unitika Ltd | Method for producing spun-lace nonwoven fabric of good touch |
-
2018
- 2018-07-20 ES ES201830732A patent/ES2738200A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0726458A (en) * | 1993-07-09 | 1995-01-27 | Japan Vilene Co Ltd | Nonwoven fabric interliner and its production |
| JPH1161617A (en) * | 1997-08-15 | 1999-03-05 | Unitika Ltd | Short fiber nonwoven fabric and its production |
| US20090087475A1 (en) * | 2007-09-28 | 2009-04-02 | Astrid Annette Sheehan | Non-Wovens With High Interfacial Pore Size And Method Of Making Same |
| JP2010007188A (en) * | 2008-06-24 | 2010-01-14 | Unitika Ltd | Method for producing vinylon staple fiber spun lace nonwoven fabric |
| JP2010144281A (en) * | 2008-12-18 | 2010-07-01 | Unitika Ltd | Method for producing spun-lace nonwoven fabric of good touch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11628093B2 (en) | Wound dressing | |
| RU2428156C2 (en) | Wound bandage | |
| EP3078360B1 (en) | Wound dressing with three-layer structure and preparation method thereof | |
| CN103463670B (en) | Wound dressing containing fibers with low smelting point and production method thereof | |
| ES2229715T3 (en) | NON-WOVEN FABRICS AND THEIR MANUFACTURE AND USE. | |
| BR112015022238A2 (en) | non-woven fabrics of short individualized Liberian fibers and products made from these | |
| ES2793490T3 (en) | Nonwoven comprising a cellulosic fiber with hydrophobic properties and high softness | |
| BR112015009359A2 (en) | filaments comprising microfibrillary cellulose, fibrous nonwoven webs and process for making same | |
| JP2016524009A5 (en) | ||
| CN103480031A (en) | Wound dressing containing gel fibers and non-gel fibers as well as preparation method and application for wound dressing | |
| JP2016037674A (en) | Sheet for chemical impregnation and face mask including the same | |
| ES2738200A1 (en) | Nonwoven fabric and manufacturing procedure (Machine-translation by Google Translate, not legally binding) | |
| RU2014101466A (en) | CONNECTING BANDAGE AND METHOD FOR ITS MANUFACTURE | |
| ES2476166A1 (en) | Filter substrate (Machine-translation by Google Translate, not legally binding) | |
| CN102308034A (en) | Knitted fabric | |
| WO2014027906A1 (en) | Biodegradable textiles and methods of their manufacture | |
| CN109537166A (en) | The preparation method of antimicrobial form medical non-woven fabrics | |
| CN114929958A (en) | Flexible soft tissue comprising individualized bast fibers | |
| CN102934963A (en) | Preparation method of environment-friendly degradable wet tissue material | |
| CN107109732A (en) | Fiber aggregate and the absorbency tablet of the fiber aggregate and the manufacture method of fiber aggregate are used | |
| CN205800398U (en) | A kind of superabsorbent sex hygiene bamboo pulp composite water-spurt non-woven cloth | |
| CO2022010277A2 (en) | Non-woven fabric and methods for preparing the fabric | |
| ES2866098T3 (en) | Gelling fibers | |
| JP2013231267A (en) | Latent-crimpable polyester conjugate fiber and nonwoven fabric | |
| CN107460637A (en) | A kind of processing technology of Medical composite non-woven fabrics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA2A | Patent application published |
Ref document number: 2738200 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200120 |
|
| FC2A | Grant refused |
Effective date: 20230718 |