Thermobonding interlining containing microfibers

Details Thermobonding interlining containing microfibers Thermobonding interlining containing microfibers

D - Textiles, Paper

04

H

D04H 1/56 (2006.01) D04H 1/54 (2006.01) D04H 1/62 (2006.01)

Patent

CA 2046185

PATENT APPLICATION entitled: THERMOBONDING INTERLINING CONTAINING MICROFIBERS in the names of: Robert BOLLIAND Pierre GROSHENS assigned to: LAINIERE DE PICARDIE (S.A.) ABSTRACT OF THE DISCLOSURE The thermobonding interlining is a nonwoven covered on one face with dots of thermobonding resin. According to the invention, the nonwoven is a web, containing no binding agent, of which the g/m2 weight is less than 50, which is produced from fibers in a thermoplastic material, such as polyamide; the mean diameter of the fibers is comprised between 1 and 5 µm, the consolidation of the nonwoven is obtained by intermingling of the fibers by high pressure streams of fluid, notably by injection of water at pressures of 40 to 80 bars, or by thermal bonding. For example, the fibers being obtained from a mixture of constitutents having different melting points, the bonding points result from the melting and bonding of the zones of fibers having the lowest melting point.

Titre de la DEMANDE DE BREVET : DOUBLURE DE THERMOLIAGE A BASE DE MICROFIBRES, présentée par Robert BOLLIAND et Pierre GROSHENS pour le compte de LAINIERE DE PICARDIE (S.A.). RESUME. La doublure de thermoliage est un non tissé recouvert, sur une face, d'un pointillé de résine thermoliante. Aux termes de la présente invention, le non tissé est sous forme de bande ne contenant aucune agent liant, dont le grammage au mètre carré est inférieur à 50, et lequel est produit à partir de fibres de matériau thermoplastique tel un polyamide; le diamètre moyen des fibres est compris entre 1 et 5 micromètres; la consolidation des fibres est obtenue par entremêlement des fibres sous l'effet de jets de fluides haute pression, notamment par injection d'eau à des pressions de l'ordre de 40 à 80 bars, ou par thermoliage. Par exemple, dans les fibres obtenues à partir d'un mélange de composants ayant des points de fusion différents, le thermoliage résulte de la fusion et du liage des fibres ayant le point de fusion le plus bas.

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