Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Scrim – Woven scrim
Patent
1998-04-16
2000-02-15
Morris, Terrel
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Scrim
Woven scrim
442195, 428605, 428606, 428608, 428611, B32B 1502
Patent
active
060252820
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a textile fabric comprising metal filament bundles obtained by machining or shaving.
BACKGROUND OF THE INVENTION
From U.S. Pat. No. 4,930,199 a method is known for manufacturing thin metal filaments by machining, shaving or cutting them off the end face of a thin metal foil coiled around a mandrel. This produces a bundle of nearly parallel filaments with a predominantly quadrilateral cross-section, the equivalent cross-section of which is between 15 and 150 .mu.m. depending on the thickness of the foil and the cutting speed of the shaving or cutting tool. By equivalent diameter is meant here the diameter of the circle which has the same surface area as the quadrilateral cross-section of the filament.
Since these machined filaments often have a lower tensile strength and are less straight than drawn filaments, they are difficult to process into filament yarns by twisting at the usual speeds.
PURPOSE AND OBJECT OF THE INVENTION
It is therefore an object of the invention to provide a textile fabric comprising bundles of thin metal filaments or metal fibres which are twisted only slightly if at all and which are obtained by means of a machining process. The term textile fabric here refers to a structure which comprises a series of meshes or openings and filament bundles which define the mesh boundaries, such as woven, knitted, knotted, interwoven or tufted structures.
Further, it is an object of the invention to provide a method for manufacturing a textile fabric out of said bundles of thin filaments or fibres in which twisting operations on the bundles are avoided. The rather voluminous bundle of nearly parallel filaments produced by the machining apparatus therefore needs to be densified or compacted in another manner in order afterwards to be processed into a textile fabric by means of knitting, weaving, braiding, knotting or tufting.
Moreover, whenever the initial voluminous character of the machined bundle may afterwards need to be somewhat restored in the textile fabric, the effect of this compaction or consolidation treatment should at least partly be capable of being reversed. For certain applications, it is precisely the is intention to obtain or preserve a relatively voluminous character in the textile fabric, for example with a view to achieving a certain flexibility in the fabric.
The invention therefore provides a textile fabric comprising bundles of metal filaments obtained by means of a machining process in which these filaments have an equivalent filament diameter of between 15 and 150 .mu.m and are disposed in a nearly parallel arrangement in the bundles. The term `filaments` here refers both to continuous filaments and staple fibres.
The method according to the invention for the manufacture of the textile fabric comprises the consolidation of the machined filament or fibre bundles by means of a binding agent and the processing of the consolidated bundles into a textile fabric by means of, for example, weaving, knitting or braiding. If so desired, this binding agent can afterwards be removed in order, for example, to restore at least partially the original voluminous character of the bundle. By the term binding agent is meant, on the one hand, a self-supporting filament-shaped or ribbon-shaped object that, for example, as a binding agent can be wrapped in a spiral form around the bundle (wrapping). On the other hand, it can be a glue with which the bundle is covered or enveloped. Depending on its composition, the binding agent can be removed, for example, by means of dissolving, melting of, vaporizing, freezing out, oxidizing or burning away, by pyrolysis, carbonization, or by other chemical reactions.
The invention also relates to the metal filament or fibre bundle itself obtained by machining, and which is consolidated by means of a binding agent and can be utilized, for example, in the method for manufacturing the textile fabric. The textile fabric according to the invention can be utilized for a broad range of applications, each depending on the suitable choi
REFERENCES:
patent: 4118845 (1978-10-01), Schildbach
patent: 4930199 (1990-06-01), Yanagisawa
patent: 4982780 (1991-01-01), Stepanenko et al.
patent: 4983467 (1991-01-01), De Bruyne et al.
patent: 5071713 (1991-12-01), Francois
patent: 5443918 (1995-08-01), Banthia et al.
patent: 5631067 (1997-05-01), Anaf et al.
Dewaegheneire Gabriel
Van Steenlandt Wim
Vansteenkiste Philip
Morris Terrel
N.V. Bekaert
Ruddock Ula C.
LandOfFree
Textile fabric comprising bundles of machined metal filaments does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Textile fabric comprising bundles of machined metal filaments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Textile fabric comprising bundles of machined metal filaments will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1905678