High strength spunbond fabric from high melt flow rate polymers

Details High strength spunbond fabric from high melt flow rate polymers High strength spunbond fabric from high melt flow rate polymers

D - Textiles, Paper

04

H

D04H 1/42 (2012.01) A41D 13/12 (2006.01) A61F 13/20 (2006.01) A62B 18/02 (2006.01) B32B 27/32 (2006.01) D04H 1/54 (2012.01)

Patent

CA 2249286

A spunbond nonwoven fabric is provided which has superior strength characteristics to conventional fabrics yet is comparably soft. The fabric is a laminate having a web made from a high melt flow rate polyolefin polymer and a low melt flow rate polymer. The spunbond laminate fabric of this invention may have therebetween a layer of meltblown nonwoven fabric or film. The laminate produced according to this invention has a strength which is at least 10 % greater than a comparable fabric made without the high melt flow rate polymer web. The nonwoven fabric of this invention may be used in products such as, for example, garments, personal care products, medical products, protective covers and outdoor fabrics.

L'invention a trait à un textile non tissé filé-lié témoignant de remarquables caractéristiques de résistance par rapport à des textiles classiques, mais demeurant aussi souple qu'eux. Ce textile est un textile laminé pourvu d'un voile fait d'un polymère polyoléfinique à taux de fluage élevé et d'un polymère à faible taux de fluage. Ce textile non tissé filé-lié peut comporter une couche intercalée d'un tissu ou d'un film non tissé de fusion-soufflage. Le laminé produit selon les techniques de l'invention possède une résistance supérieure d'au moins 10 % à celle d'un textile comparable confectionné sans ce voile fait d'un polymère à taux de fluage élevé. Il est possible d'utiliser le textile non tissé de cette invention dans des articles tels que des vêtements, des produits d'hygiène personnelle, des produits à usage médical, des enveloppes de protection et des tissus d'extérieur.

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