Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Woven fabric – Woven fabric is characterized by a particular or...
Patent
1998-04-23
1999-12-21
Morris, Terrel
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Woven fabric
Woven fabric is characterized by a particular or...
442 2, 442 5, 442 49, 442181, 442189, 442203, 442204, 442209, 442212, 442213, 139408, 139416, D03D 1300
Patent
active
060048913
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a composite fabric, suitable for various applications, in particular for obtaining and making garments, and hand baggage, such as bags or suitcases.
BACKGROUND OF THE INVENTION
Baggage is known in which the wall(s) are constituted by cloth and which has the advantage of being lighter in weight than baggage made of other materials. The cloth used by certain baggage manufacturers is obtained by warp and weft weaving of threads made of polyester and/or polyamide. They are strong in the warp and the weft directions and they present good resistance to surface abrasion. However, their strength on the bias and their resistance to shearing or to tearing from a tear-starter are unsatisfactory. When the cloth is torn because of accidental puncturing, the tear can extend along the entire length of the baggage, particularly during successive handling operations (stations, airports), or merely under the pressure exerted by the objects contained inside the baggage.
Also, various textile laminates are already known and commercially available, in particular for technical or industrial type applications, which laminates comprise an outer layer, one (or more) reinforcing layer(s), and a flexible inner layer, with the reinforcing threads, in particular aramid threads, that make up a reinforcing layer lying between the outer layer and the flexible inner layer.
However, those known laminates are reinforced by including reinforcing fibers that are hidden, whereas the present invention relates to composite fabrics made up of a load-carrying grid that provides strength against mechanical forces applied diagonally relative to the fabric, covered on both sides by layers appropriate for protecting the contents. This fabric presents characteristics and properties that are adapted more particularly to making hand baggage with a flexible wall, such as a flexible travel bag or case, where it is desirable to have walls that are lightweight but strong. Such fabric must not only withstand tearing, it must also present other qualities, in particular concerning feel and waterproofing.
OBJECTS AND SUMMARY OF THE INVENTION
According to the invention, a composite fabric made up of three superposed layers including a woven outer layer comprises: a grid that is two-directional at least, made up of held-together crossed threads of high tenacity, having a diameter greater than the thickness of the woven layer; an abrasion-resistant outer decorative cloth; and a waterproof flexible inner layer; the decorative cloth being held directly to the flexible layer through the mesh of the grid, such that the fabric includes protecting ribs in the woven layer.
According to another characteristic of the invention, at least some of the threads of the grid extend obliquely relative to the others and relative to the threads of the outer cloth, thereby constituting a polygonal mesh.
The grid is made from at least one thread having strength characteristics enabling the grid to oppose any tear that might begin in the decorative cloth; the open area of the mesh constituted by the grid is greater than that of the gaps present in or defined by the texture of the outer decorative cloth.
The composite fabric of the invention also presents the flexibility and the resistance to abrasion and shock that are required by the intended application. It possesses good strength in traction diagonally to the warp and weft threads of the decorative cloth. In addition, any accidental tear in the decorative cloth is stopped by the projecting adjacent threads of the grid so that any such tear remains limited in extent.
BRIEF DESCRIPTION OF THE DRAWINGS
Other characteristics and advantages of the invention appear from the following description of an embodiment given purely by way of non-limiting example, and with reference to the accompanying drawings, in which:
FIG. 1 is a cut-away view of a composite fabric of the invention;
FIG. 2 is a section view through the fabric shown in FIG. 1;
FIG. 3 is a perspective view of the load-carrying grid shown
REFERENCES:
patent: 3862877 (1975-01-01), Camden
patent: 4143197 (1979-03-01), Jasionowicz et al.
patent: 5136723 (1992-08-01), Aldridge et al.
patent: 5385774 (1995-01-01), Cramer et al.
Gallais Alain
Tuppin Laurent
La Chemise Lacoste (S.A.)
Morris Terrel
Ruddock Ula C.
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