EP2569472A1 - Structure textile tricotee a base de silicone - Google Patents
Structure textile tricotee a base de siliconeInfo
- Publication number
- EP2569472A1 EP2569472A1 EP12731039A EP12731039A EP2569472A1 EP 2569472 A1 EP2569472 A1 EP 2569472A1 EP 12731039 A EP12731039 A EP 12731039A EP 12731039 A EP12731039 A EP 12731039A EP 2569472 A1 EP2569472 A1 EP 2569472A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silicone
- structure according
- knitted
- knit
- textile structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/18—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
- D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
- D10B2505/204—Geotextiles
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
- D10B2509/022—Wound dressings
Definitions
- the present invention relates to knitted textile structures using threads and fibers based on silicone polymer or son and fibers sheathed with silicone. It also relates to the applications of such a structure for textile surfaces having the following properties: resistance to heat (ducts and tubes for automotive applications or food molds for example), low surface tension (anti-adhesion effect for the production of dressings and implants for example), high hydrophobicity (antifouling effect), compressive strength (three-dimensional structure shock absorbers for example), gas permeability, support for composite structures (reinforcements), chemical inertia (resistance to basic pH for geosynthetic).
- silicone used is either deposited in a film, or coated on the surface of the textile structure, or even impregnated therein.
- the invention relates to a textile structure made of a knit made in whole or in part of a material based on silicone threads at the scale of the polymer chain and / or son based on synthetic materials, natural and / or mineral sheathed with silicone, said knit being obtained by the technology knit throw chain type or Rachel or hook.
- Lf denotes the length at break
- open-knit (openwork) knit or closed knit obtained by chain-like constructions, simple knit, double knit, satin ...
- a first face made from silicone-based yarns or silicone-wrapped
- a second face made from another polymer such as polyester, polypropylene, polyamide, polyethylene, polylactic acid (PLA), chitosan, aramid, or glass or metal;
- another polymer such as polyester, polypropylene, polyamide, polyethylene, polylactic acid (PLA), chitosan, aramid, or glass or metal;
- the yarn between the two aforementioned faces called by those skilled in the art "pile yarn", which may be silicone-based or silicone-sheathed or of another polymer such as polyester, polypropylene, polyamide, polyethylene, PLA, chitosan, aramid, even glass; the opening ratio (ratio between the free surface and the surface obstructed by wires) and the structure of the mesh may be identical or different on each of the faces.
- complex structure associating the textile structure of the invention with a support of a woven material, knitted, nonwoven or a film.
- This type of complex structure may allow, for example, to promote thermal insulation
- Figures 1 and 2 are diagrammatic representations in perspective illustrating a structure of the prior art, respectively implementing a woven and knit coated or impregnated with a polymeric binder or a silicone film.
- Figure 3a is a schematic plan view of a textile structure of the invention, Figure 3b of which is a detail view.
- FIG. 4 is a diagram analogous to FIG. 3, obtained with jetty mesh technology, resulting in a blocking of the extensibility in one direction.
- Figures 5a and 5b show complex structures reinforced with the types of knit formable. More precisely, Figure 5b corresponds to a pastry mold.
- FIG. 6 is also a view similar to FIG. 3, obtained with the jetty mesh technology, and resulting in a blocking in the two perpendicular directions in the production (chain) and cross direction (weft) directions
- FIG. 7 is a diagrammatic representation of the double needle device, making it possible to produce the biface structure of FIG. 8
- Figure 8 is a schematic representation of a "biface" structure of the invention. DETAILED DESCRIPTION OF THE INVENTION
- FIGS. 1 and 2 are, as already indicated, schematic views of a structure of the prior art describing a finished product obtained in at least two steps:
- the warp and weft threads of the fabric 102 are made of synthetic polymer using a conventional loom. As a result, the extensibility of the textile is reduced to that of these son. It is the same of the constituent yarns of the knit 202.
- FIG. 3a represents a knit obtained by the stitch knit technology according to the present invention.
- the son constituting it are entirely made of silicone or silicone sheathed wire (FIG. 3b).
- FIG. 3b shows in detail a wire 301 of the knit of FIG. 3a, consisting for example of a fiberglass core 305 sheathed with a continuous silicone envelope 306.
- the structure of FIG. 3 a is obtained with a loom Chain or Rachel, as marketed by the company Karl Mayer or Liba or with a hook loom type Cornez or Muller.
- This diagram shows a basic bonding with a single set of son for example with (according to the expression specific to this technology), a single wire guide bar but can also design and manufacture a product with two or three guides bars of different threads, while maintaining the characteristics of controlled formability of this kind of article.
- FIG. 4 thus represents a known construction implementing a semi-secure bonding with chains 401 and partial frames 402, with a set of working yarns in "underpants” such as, for example, a marquisette.
- FIG. 6, for its part, represents a "locked" construction in dimension, and therefore in the two principal directions, because of the introduction of perpendicular wires 601 in the production direction (warp direction with so-called “capstan” wires) and in cross-direction 602 (frame direction).
- the perpendicular son 601 and 602 are in this case interconnected by binding son 603, which work in various chains or knits. This type of manufacturing is done on a Chain or Rachel machine, with weft insertion.
- These son 601, 602 may be polymeric or mineral nature sheathed silicone.
- This type of textile may have certain advantages, but in most applications the controlled extensible nature is very important.
- the structure according to the invention is likely to have a capacity of extensibility or high formability because of its embodiment and the chosen jersey mesh, insofar as it is not no coating or impregnation, and therefore the knit is not altered by any layer or film silicone.
- FIG. 5b thus shows a particular application of the structure of the invention, for the production of a mold for the manufacture of parts, for example in food use, a baking mold for an industrial oven, for example
- the structure according to the invention is particularly suitable for producing dressings and implants.
- First of all because of its embodiment, that is to say to make a knit directly from silicone son or son or fibers of any material sheathed with silicone, it is possible to confer to structure a multiplicity of possible forms. Thus, as it is not uncommon to encounter in the context of acute and chronic wounds often complex geometries, they do not pose any difficulties for the invention.
- the silicone allows the dressing not to adhere to the wound, and therefore, to promote healing while protecting it.
- the "breathable" nature of the structure, resulting from the embodiment of the invention being free from any coating or impregnation, healing is even accelerated, especially for wounds resulting burns.
- the contribution of the textile structure according to the invention is reflected on the one hand, by its great adaptability to the geometry of the organ at which it is desired to locate the implant, and on the other hand, by its anti-adhesive qualities, particularly sought after in cases where it is desired to avoid any adhesion on the viscera.
- the textile structure of the invention offers, due to the elasticity of the silicone thread, and therefore corollary of the structure itself, a flexible support "extensible" in the direction of the length without necking. that is, without reducing the dimension in the width direction. It is therefore particularly suitable for the production of strips capable of acting as urological implants, whose comfort is then improved. Furthermore, the extensibility of the textile structure according to the invention can be reduced (see above), and in this case, is an advantage for the realization of screens or insulation or filter barriers. In these configurations, the silicone gives the structure its properties of gas permeability and chemical inertness.
- the size of the orifices of the knit defining it is determined according to the gauge of the knitting machine, the density of warp and weft yarns, as well as the nature of the yarns used, that is to say based on silicone polymer only or silicone wrapped wire.
- Figures 7 and 8 are intended to illustrate a two-sided textile fabric, made on double warp Channe or Rachel, such as Karl Mayer, Liba or Cornez or Mulher.
- FIG. 7 represents the manufacturing process on a loom made of two textile layers 701 and 702 respectively, interconnected by binding yarns referred to as pile yarns 703, 704.
- Figure 8 schematically shows the perspective textile obtained according to this process, with the faces 801 and 802 which may be identical or totally different from the armor and / or the nature of son constituting them.
- This structure can be made 100% with a silicon or silicone polymer or mineral yarn sheathed silicone or mixed with other son, such as polyester, polyamide, polypropylene, polyethylene, glass, PLA (polylactic acid), chitosan, metal threads ... It is possible, using this technology, to produce two-sided articles, that is to say one side made of silicone material and one side made of another material (PET, PA, PP, PE, glass, PLA, Chitosan, metal wires).
- This two-sided structure is advantageous for the production of dressings, for example.
- one of the faces, intended to come into contact with the wound is silicone, and not adherent, and the other face is intended to be in contact with a fixing device, and receives for example an adhesive suitable for allow the fixation of the dressing.
- Such a two-sided structure is also likely to be implemented for the production of implants.
- one of the faces type PET polyyester
- the two-sided structure obtainable in accordance with the invention can also be used in products of "spacers" type (spacers) or thermal and / or mechanical insulation barrier.
- the film between the faces which is known to those skilled in the art, is advantageously made of silicone or silicone sheathed to give the product increased properties in terms of compressive strength and shock absorption. , which are intrinsic properties of silicone.
- the knitted structure of the invention may furthermore be combined by bonding, for example on a Karl Mayer type MSU-V knit stitch machine, with a layer of woven material, knitted material or a nonwoven material, or even a film. or on a Malimo / Karl Mayer type sewing machine.
- This additional element is then inserted in the Rachel type machine previously described in the form of a continuous support. It is associated by means of a binding yarn to the basic textile structure of the invention.
- This embodiment is intended to be implemented in the field of geotextiles.
- the yarns in particular of mineral nature (glass or basalt) are sheathed by the silicone, which protects them against the mechanical deteriorations (damage) undergone during the different movements to which they are subjected, both during the manufacture (knitting) than during their handling and placement in the soil.
- these structures can be used in soils with a pH greater than 9 because of the alkali-resistant nature of the silicone, whereas a pH of such a value limits the use of polyester or E-glass.
- the structure of the invention can therefore act as a reinforcement in the building or geotechnical field, particularly in a mechanically or chemically aggressive environment.
- said structure can also function:
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1154471A FR2975710B1 (fr) | 2011-05-23 | 2011-05-23 | Structure textile tricotee a base de silicone |
| PCT/FR2012/051142 WO2012160307A1 (fr) | 2011-05-23 | 2012-05-22 | Structure textile tricotee a base de silicone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2569472A1 true EP2569472A1 (fr) | 2013-03-20 |
| EP2569472B1 EP2569472B1 (fr) | 2018-03-28 |
Family
ID=46420355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12731039.9A Active EP2569472B1 (fr) | 2011-05-23 | 2012-05-22 | Structure textile tricotee a base de silicone |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2569472B1 (fr) |
| FR (1) | FR2975710B1 (fr) |
| WO (1) | WO2012160307A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140310844A1 (en) * | 2013-04-17 | 2014-10-23 | Patti Jo Lockwood | Silicone loop potholder method and apparatus |
| CN103243473B (zh) * | 2013-05-15 | 2014-12-17 | 海宁市超达经编有限责任公司 | 一种花色银丝经编面料的生产方法 |
| DK3114282T3 (en) * | 2014-02-28 | 2018-07-16 | Nikolaos Sarris | Mixed turf |
| FR3035666B1 (fr) * | 2015-04-30 | 2018-03-02 | Mdb Texinov | Structure textile tricote a zones differenciees |
| EP3328325B1 (fr) | 2015-07-27 | 2022-11-23 | Ossur Iceland EHF | Interface tricoté |
| WO2019118631A1 (fr) * | 2017-12-12 | 2019-06-20 | Bio Med Sciences, Inc. | Pansement de débridement, procédé de fabrication et articles utiles associés |
| FR3142322B1 (fr) * | 2022-11-28 | 2024-11-29 | Texinov Tech | Structure textile de protection de cultures agricoles face aux aleas climatiques |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658034B2 (fr) * | 1986-02-21 | 1992-05-15 | Demarle Guy Ets | Membrane anti-adherente et autoportante formant moule ou plaque a empreintes et procede pour sa fabrication. |
| MX174519B (es) | 1989-05-08 | 1994-05-23 | Atd Corp | Laminado adhesivo sensible a la presion |
| GB0520145D0 (en) | 2005-10-04 | 2005-11-09 | Dow Corning Taiwan | A liquid silicone rubber composition for textile coating |
| US20070231573A1 (en) * | 2006-03-29 | 2007-10-04 | Chapman Thermal Products, Inc. | Fire retardant and heat resistant yarns and fabrics treated for increased strength and liquid shedding |
| EP1892324A1 (fr) * | 2006-08-24 | 2008-02-27 | Bio-Racer | Materiau à couches fonctionnant à proteger le peau et utlisation de tel materiau pour proteger le peau |
| GB0708527D0 (en) * | 2007-05-03 | 2007-06-13 | Finden Coatings Ltd | Method of manufacturing a stretchable textile fabric article |
| US20080299854A1 (en) * | 2007-06-01 | 2008-12-04 | Ssm Industries, Inc. | Flame Resistant Spacer Fabric |
| GB0814152D0 (en) * | 2008-08-01 | 2008-09-10 | Engineered Fibre Structures Lt | Sleeve for trans-dermal patches |
| DE102010022059A1 (de) * | 2010-05-31 | 2011-12-01 | Penn Textile Solutions Gmbh | Beschattungstextil |
-
2011
- 2011-05-23 FR FR1154471A patent/FR2975710B1/fr not_active Expired - Fee Related
-
2012
- 2012-05-22 EP EP12731039.9A patent/EP2569472B1/fr active Active
- 2012-05-22 WO PCT/FR2012/051142 patent/WO2012160307A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012160307A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012160307A1 (fr) | 2012-11-29 |
| EP2569472B1 (fr) | 2018-03-28 |
| FR2975710A1 (fr) | 2012-11-30 |
| FR2975710B1 (fr) | 2013-05-31 |
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