Needle-bonding apparatus and process for glass batt and...

D - Textiles – Paper – 04 – H

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154/122, 28/9

D04H 11/08 (2006.01) B29C 70/38 (2006.01) D04H 3/10 (2006.01) D04H 18/00 (2006.01)

Patent

CA 1308890

PR?CIS DE LA DIVULGATION La présente invention concerne l'aiguilletage de mats de fils de verre continus. Elle consiste a soumettre le mat à l'action, de préférence simultanée, d'aiguilles de diamètres différents munies de barbes. On engendre ainsi dans le mat des perforations de dimensions différentes, de préférence régulièrement réparties. Ce mat est destiné à être utilisé comme renfort dans des matériaux composites à base de résines thermoplastiques, en particulier dans des stratifiés.

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