Method for producing polymeric fiber insulation batts for...

D - Textiles – Paper – 04 – H

Patent

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D04H 13/00 (2006.01)

Patent

CA 2650573

Method for producing Fiber insulation batts suitable for building thermal insulating applications are made using polymer fibers such as PET. A mixture of staple fibers and binder fibers are used to make the batt. The batt has a bulk density of 6-14 kg/m3, a thermal conductivity of 35-50 mW/m-K and a lambda*density value of from 250-550. The batts can be made by forming a web of the fibers, and calibrating and heat-setting the web. The web can be formed using pneumatic or mechanical carding processes. In some processes, the batt can be made by forming a stack of multiple plies of the web and calibrating and heat-setting the stack.

L'invention concerne un procédé de fabrication d'un matelas isolant à fibres adapté aux applications d'isolation thermique des bâtiments et constitué de fibres polymères telles que le PET. Un mélange de fibres discontinues et de fibres liantes sont utilisées pour fabriquer le matelas. Ce dernier présente une densité apparente de 6-14 kg/m3, une conductivité thermique de 35-50 mW/m-K et une valeur de densité lambda de 250-550. Le matelas peut être fabriqué en formant une toile à partir des fibres, et en calibrant et en durcissant thermiquement la toile. La toile peut être formée par des procédés de cardage pneumatique ou mécanique. Dans certains procédés, le matelas peut être fabriqué en formant un empilement de multiples couches de la toile, et en calibrant et en durcissant thermiquement l'empilement.

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