Textile mesh structure, in particular a geomesh

D - Textiles – Paper – 04 – B

Patent

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Details

D04B 21/18 (2006.01) D04B 21/10 (2006.01) D04B 21/14 (2006.01)

Patent

CA 2365950

The invention relates in particular to a textile geomesh comprising linearly extending warp threads (1) and weft threads (2) which extend linearly substantially at a right angle to the warp threads and which are joined to the warp threads (1) by means of fixing threads (3) which are applied by warp knitting and the meshes of which extend around the warp threads (1) over the entire length and the weft threads (2) in the region of the intersections (4), wherein the warp threads (1) and the weft threads (2) are arranged individually or in groups at relatively large spacings which produce the internal widths (5) of the mesh (6). The object of the invention is to attain an improved join between warp threads and weft threads without requiring additional fixing threads or stronger fixing threads. To attain that object in the regions in which the weft threads (2) cross the warp threads (1) the lengths of the meshes (7) of the fixing threads (3) are markedly shorter than in the regions of the mesh structure which are located therebetween.

L'invention concerne notamment une trame de géotextile comprenant des fils de chaîne (1) linéaires et des fils de duite (2) linéaires et sensiblement perpendiculaires. Les fils de duite sont reliés aux fils de chaîne (1) par des fils de fixation (3) qui sont appliqués par tricotage en chaîne et dont les mailles entourent les fils de chaîne (1) sur toute leur longueur et les fils de duite (2) dans la zone des croisements (4). Les fils de chaîne (1) et les fils de duite (2) sont disposés individuellement ou par groupes à des distances assez importantes déterminant les largeurs internes (5) de la trame (6). L'invention a pour objet de fournir une meilleure liaison des fils de chaîne et des fils de duite, sans fils de fixation supplémentaires ou fils de fixation plus résistants. Pour ce faire, les longueurs de mailles (7) des fils de fixation (3) sont nettement plus courtes dans les zones où les fils de duite (2) croisent les fils de chaîne (1) que dans les zones intermédiaires de la structure de trame.

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