Light and/or High Compactness fabric, in Particular for Parachutes
AssigneePorcher Industries
InventorPhilippe Guimbard
Life of this patent
Estimating the term…
Abstract
The invention relates to a fabric made of continuous warp yarns and weft yarns, comprising 30 to 63 warp yarns and 30 to 63 weft yarns per centimetre, and in which the yarns are spread so as to lie in a same plane, the yarns having a dtex of between 11 and 78 dtex and a DPF (decitex per filament) defined in the following manner on the basis of the number of warp and weft yarns: (I) the fabric has a weight of between 27 and 40 g/m2 and a perviousness to air lower than or equal to 120 l/m2/s at 127 Pa, as measured according to the ASTM-D-737 standard (1 hour) on a measuring surface of 20 cm2. AA BB Nombre de Nombre de fils de DPF (dtex) fils de chaîne trame 1.0 ≦ DPF ≦ 1.35 30-49 30-49 1.35 < DPF ≦ 2.3 35-63 35-63 AA Number of warp yarns BB Number of weft yarn.
Claims23
A fabric for a parachute canopy, a paragliding canopy or a sailing boat sail, formed with continuous warp yarns and weft yarns, comprising from 30 to 63 warp yarns and from 30 to 63 weft yarns, per cm, and wherein the filaments are spread out so as to appear in the same plane, the yarns have a dtex comprised between 11 and 78 dtex and a DPF (dtex per filament) is defined in the following way, depending on the number of warp and weft yarns:
- Number of warp
- Number of weft
- DPF (dtex)
- yarns
- yarns
- 1.0 ≦ DPF ≦ 1.35
- 30-49
- 30-49
- 1.35 < DPF ≦ 2.3
- 35-63
- 35-63
- the fabric has a weight comprised between 27 and 40 g/m2 and an air perviousness of less than or equal to 120 L/m2/s under 127 Pa, as measured as according to the ASTM D-737 standard (1 hour) on a measuring surface area of 20 cm2.
Dependencies are inferred from the claim text.