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Stab resistant insert with steel cords and non-woven textile

a technology of inserts and steel cords, applied in the direction of textiles and paper, protective equipment, armour plates, etc., can solve the problems of fiber only having poor performance and the disadvantage of having no form stability, so as to reduce the likelihood of elongated metal elements shifting towards each other, increase the likelihood of stopping a knife, and increase the stab-resistance

Inactive Publication Date: 2010-06-17
NV BEKAERT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution enhances stab resistance while maintaining comfort by reducing the weight and stiffness of the metal layers, allowing for effective penetration stopping and flexibility, and can be combined with bullet-resistant inserts for comprehensive protection.

Problems solved by technology

With respect to stabs such as knives and daggers, however, these fibers only have a poor performance.
This is due to the inherent weakness of these synthetic fibers—and of all synthetic fibers—when it comes to transversal resistance.
Such a chain mail has the advantage of being very flexible, but has the disadvantage of having no form stability.

Method used

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  • Stab resistant insert with steel cords and non-woven textile
  • Stab resistant insert with steel cords and non-woven textile
  • Stab resistant insert with steel cords and non-woven textile

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0033]FIG. 2 illustrates the present invention. The stab-resistant insert has four different parts 10, 20, 30 and 40. Each part 10, 20, 30 and 40 is analogous to the structure of FIG. 1a and FIG. 1b, i.e. each part 10, 20, 30 and 40 has resp. a layer of steel cords 12, 22, 32 and 42, which are sandwiched between two non-woven fabrics. The distance between the individual steel cords varies from 0.5 mm to 3.0 mm. The typical form of each part 10, 20, 30 and 40 corresponds to a male back. This typical form has been obtained by means of laser cutting. An additional advantage of using a non-woven fabric according to the present invention is that the non-woven fabrics prevent the steel cords from unraveling, either before or after the laser cutting. In other words the non-woven fabrics favor the integrity of the insert. The presence of an adhesive accentuates this advantage.

[0034]An insert as stab-resistant element according to this first embodiment of FIG. 2 has proved to be successful i...

second embodiment

[0035]FIG. 3 shows the present invention. The stab-resistant insert 50 comprises a metal layer having steel cords 52 and 53, which cross each other. The metal layer may be formed by a woven structure where both the warp and the weft are steel cords. The distance between the warp steel cords 52 ranges from 0.5 mm and 3.0 mm. The distance between the weft steel cords 54 ranges from 0.5 mm and 3.0 mm. Above the woven metal structure is a non-woven fabric 54 and under the woven metal structure is also a non-woven fabric (not shown). The non-woven fabrics are bonded to the metal layer by means of an adhesive or by means of stitching. The typical form of stab-resistant insert 50 corresponds to a female front. Here again this form has been realized by means of laser-cutting.

[0036]This second embodiment has proved to be particularly successful as stab-resistant element in combination with a stack of layers of para-aramid or aramid fibers as bullet-resistant element.

[0037]The present inventi...

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PUM

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Abstract

A stab-resistant insert for a protective textile can include at least one metal layer of a fabric of metal wires or metal cords and at least one textile layer. The textile layer is in contact with and is connected to the metal layer and the textile layer can be a non-woven material. The stab-resistant insert advantageously combines a high level of stab-resistance with a high degree of comfort.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS[0001]The present application is a continuation application of U.S. application Ser. No. 10 / 577,996, filed May 3, 2006, which is the National Stage of Application No. PCT / EP2004 / 052419 filed Oct. 4, 2004, which is based upon and claims the benefit of priority from European Application No. 03104048.8, filed Nov. 3, 2003, the entire contents of all of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to a stab-resistant insert for protective textile. The stab-resistant insert comprises at least one metal layer and at least one textile layer. The present invention also relates to a protective textile comprising such a stab-resistant insert.BACKGROUND OF THE INVENTION[0003]Protective textiles are becoming increasingly important as violence is increasing and is frequently taking forms as attacks on human persons with daggers and theft of luggage with knives in canvasses.[0004]Synthetic fibers...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F41H1/02D04H1/4374F41H5/04
CPCF41H5/0464
Inventor HERMANS, PATRICKPUYPE, LODELEFEBVRE, LIEVEN
Owner NV BEKAERT SA