Polymeric creping adhesives and creping methods using same

Details Polymeric creping adhesives and creping methods using same Polymeric creping adhesives and creping methods using same

D - Textiles, Paper

21

H

D21H 25/00 (2006.01) C09J 179/02 (2006.01) D21H 21/14 (2006.01)

Patent

CA 2448612

A method for manufacturing a creped fiber web is provided and includes providing a rotating cylindrical dryer surface, applying an ionene adhesive to the rotating cylindrical dryer surface to form an adhesive dryer surface, conveying a fiber web to the adhesive dryer surface, drying the fiber web on the adhesive dryer surface to form a dried fiber web, and creping the dried fiber web from the adhesive dryer surface. The ionene polymer can be a crosslinked polymer of an alkylamine, a haloepoxyalkane, and an amine that differs from the alkylamine, such as a terpolymer of dimethylamine, epichlorohydrin, and ethylenediamine. The ionene adhesive may further include monoammonium phosphate. The ionene polymer may be water-soluble and cationic.

L'invention concerne un procédé de fabrication d'une bande de fibre crêpée qui consiste à fournir une surface de séchage cylindrique rotative, à appliquer un adhésif ionène sur cette surface afin de former une surface de séchage adhésive, à transporter la bande de fibre vers la surface de séchage adhésive, à sécher la bande de fibre sur la surface de séchage adhésive afin de former une bande de fibre sèche, et à crêper la bande de fibre séchée sur la surface de séchage adhésive. Le polymère ionène peut être un polymère réticulé d'une alkylamine, d'une haloépoxyalcane, et d'une amine qui diffère de l'alkylamine, telle qu'un terpolymère de diméthylamine, une épichlorohydrine, et une éthylèndiamine. L'adhésif ionène peut, en outre, comprendre du phosphate de monoammonium et peut être soluble dans l'eau et cationique.

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