D - Textiles – Paper – 04 – H
Patent
D - Textiles, Paper
04
H
D04H 1/04 (2006.01) D04H 13/00 (2006.01)
Patent
CA 2188781
A multilayer nonwoven thermal insulating batt is provided. The batt comprises multiple layers of webs, each web being a blend of 5 to 100 weight percent bonding staple fibers and 0 to 95 weight percent staple fill fibers, the bonding fibers bonded to other bonding fibers and fill fibers at the points of contact to enhance the structural stability of the layers of the batt. Also provided is a method of making the thermal insulating nonwoven multilayer batt comprising the steps of: (a) forming a web of bonding staple fibers and staple fill fibers; (b) subjecting the web to sufficient heat to cause bonding of the bonding staple fibers to other bonding staple fibers and staple fill fibers at points of contact within the web to stabilize the web; and (c) forming a batt of multiple layers of said webs.
Panneaux d'isolation thermique non tissés multicouches comportant plusieurs strates consistant en un mélange de 5 à 100 % en poids de fibres courtes de liaison et de 0 à 95 % de fibres courtes de remplissage, les fibres de liaison étant fixées entre elles et avec celles de remplissage par leur points de contact, ce qui confère aux couches une haute stabilité structurelle. Procédé de fabrication desdits panneaux comportant les étapes suivantes: (a) former une strate de fibres de liaison et de fibres de remplissage; (b) soumettre ladite strate à une température suffisante pour provoquer la fixation des fibres de liaison, entre elles et avec celles de remplissage par leur points de contact pour stabiliser la strate; et (c) former un panneau comportant plusieurs desdites strates.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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