Dispersible nonwoven fabric and method of making same

Details Dispersible nonwoven fabric and method of making same Dispersible nonwoven fabric and method of making same

D - Textiles, Paper

04

H

D04H 1/42 (2006.01) D04H 1/04 (2006.01) D04H 1/46 (2006.01) D04H 1/64 (2006.01) D21H 15/00 (2006.01) D21H 17/66 (2006.01) D21H 25/00 (2006.01) D21H 11/12 (2006.01) D21H 13/08 (2006.01) D21H 13/14 (2006.01) D21H 13/24 (2006.01) D21H 17/37 (2006.01)

Patent

CA 2284812

Disclosed are a soft, absorbent nonwoven fibrous web capable of dispersing in an aqueous environment into unrecognizable pieces and a method of making thereof comprising the steps of forming a wet-laid nonwoven web from an aqueous slurry of fibers; hydraulically needling the wet-laid nonwoven web; partially drying the hydraulically needled web; applying a binder composition to one side of the web; creping the web such that interfiber adhesion is disrupted and z-direction fiber orientation is introduced; optionally applying a binder composition to the second side of the web; recreping the web; drying and curing the web; and, converting the dried and cured web into a wet wipe, dry wipe, or other absorbent article. The web has a desirable tensile strength, bulk and softness during storage and use, yet will disperse in an aqueous environment into unrecognizable pieces.

L'invention porte sur une bande fibreuse absorbante de non tissé, par exemple une lavette, capable de se disperser dans un environnement aqueux en morceaux non reconnaissables dont les phases de fabrication sont: formation d'un non tissé voie humide à partir d'une bouillie aqueuse de fibres; aiguilletage hydraulique dudit non tissé; séchage partiel dudit non tissé; application d'un liant sur l'un des côtés de la bande; crêpage de la bande de manière à rompre l'adhérence entre fibres et à orienter les fibres dans la direction des Z; application facultative d'un liant sur l'autre côté de la bande; recrêpage de la bande; séchage et prise de la bande; découpage de la bande en lavettes torchons ou autres articles absorbants. Dans le cas de la lavette, on applique à la bande une solution contenant environ 100 ppm d'ions calcium à titre de solution de préservation. Dans le cas du torchon, l'ion calcium est ajouté après le liant et l'article est stocké à sec. Cette combinaison de traitements donne une bande présentant tant au stockage qu'à l'usage, la résistance, le bouffant et la douceur souhaitables, tout en se dispersant dans un environnement aqueux en morceaux non reconnaissables.

Affiliated with

Also associated with

Rating

Dispersible nonwoven fabric and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispersible nonwoven fabric and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersible nonwoven fabric and method of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1406859