Penetration-resistant material comprising fabric with high linear density ratio of two sets of threads

US6610618B1 · kind B1 · utility

Assignee

• Teijin Twaron GmbH · DE

Inventors

• Christian Bottger · Remscheid, DE
• Achim Fels · Wuppertal, DE
• Barbel Dorloff-Lumpe · Wuppertal, DE
• Christoph Baumgart · Erbach, DE

Key dates

• Filing date: Aug 30, 2001
• Grant date: Aug 26, 2003
• Expiry date: Aug 30, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/3976
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention pertains to a penetration-resistant material having at least a double layer of fabric composed of two layers of woven fabric which are cross-plied at an angle, characterized in that the fabric is composed of a first set of threads having 3.5 to 20 threads/cm and having a linear density of at least 420 dtex, and a second set of threads having 0.5 to 8 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 wherein the ratio of the linear density of the first set of threads to the linear density of the second set of threads is >4.2, more preferably >7.5. In a preferred embodiment, the first set of threads is warp threads made of p-aramid yarn and the second set of threads is weft threads of polyester yarn, and the ratio of the number of threads/cm of the first set to that of the second set is >1.