Penetration-resistant material and articles made of the same

Details Penetration-resistant material and articles made of the same Penetration-resistant material and articles made of the same

F - Mech Eng,Light,Heat,Weapons

41

H

F41H 5/04 (2006.01)

Patent

CA 2497473

A penetration-resistant material is described comprising at least a double layer of wowen fabric wherein the double layer comprises a first layer of fabric composed of a first set of threads comprising 3.5 to 20 threads/cm, having a linear density of at least 210 dtex, and comprising at least 65 % of the fabric weight, and a second set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, with the second set of threads being transverse to the first set of threads, and the ratio of the number of threads/cm of the first set to that of the second set is > 1, and a second layer of fabric composed of a first set of threads comprising 0.5 to 16 threads/cm and having a linear density of at least 50 dtex, and a second set of threads comprising 3.5 to 20 threads/cm, having a linear density of at least 210 dtex, and comprising at least 65 % of the fabric weight, with the second set of threads being transverse to the first set of threads, and the ratio of the number of threads/cm of the second set to that of the first set is > 1, and wherein the first and second sets of threads of the first layer have a parallel orientation towards the first and second sets, respectively, of threads of the second layer, and wherein in the first layer of fabric at least the first set of threads and in the second layer of fabric at least the second set of threads are treated with a water-repellant.

Cette invention a trait à un matériau résistant à la pénétration comportant au moins une double couche de textile tissé. Cette double couche se compose d'une première couche de tissu constituée d'un premier ensemble de fils, de 3,5 à 20 fils/cm, d'une densité linéaire d'au moins 210 décitex et représentant au moins 65 % du poids du tissu, ainsi que d'un second ensemble de fils, de 0,5 à 16 fils/cm, d'une densité linéaire d'au moins 50 décitex, ce second ensemble étant disposé à la transversale du premier et le rapport nombre de fils du premier ensemble/nombre de fils du second étant < à 1. La double couche se compose également d'une seconde couche de tissu constituée d'un premier ensemble de fils, de 0,5 à 16 fils/cm, d'une densité linéaire d'au moins 50 décitex ainsi que d'un second ensemble de fils, de 3,5 à 20 fils/cm, d'une densité linéaire d'au moins 210 décitex, ce second ensemble représentant au moins 65 % du poids du tissu et étant disposé à la transversale du premier, le rapport nombre de fils du premier ensemble/nombre de fils du second étant < à 1. Les deux ensembles de fils de la première couche sont orientés parallèlement, respectivement, aux deux ensembles de fils de la seconde couche et, au moins le premier ensemble de fils de la première couche de tissu et au mois le second ensemble de fils de la seconde couche sont traités avec un agent hydrofuge.

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