Taggant fibers

a technology of taggant fibers and fibers, applied in the field of taggant fibers, can solve the problems of limited number of polymer domains available for arrangement, combination, and/or modification to make different patterns, and achieve the effects of less noticeable use, less likely to degrade or interfere with performance, and low cos
US20050227068A1Inactive Publication Date: 2005-10-13FIBER INNOVATION TECH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
FIBER INNOVATION TECH
Publication Date
2005-10-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

Multicomponent fibers are provided that include a plurality of coextruded polymeric components arranged in discrete structured domains. The polymer domains have one or more identifying characteristics that can be varied to form a plurality of different identifying patterns. A plurality of islands in the sea fibers can be provided, the plurality of fibers including two or more subsets of fibers, each subset comprising a uniquely identifiable cross sectional pattern of island domains, each pattern being formed from an array comprising a predetermined number of island domains in predetermined locations within the array, wherein each pattern is determined by classifying individual island domains within the array as present or absent from the pattern. The plurality of fibers can be meltspun simultaneously to form a filament yarn or tow.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims the benefit of U.S. Provisional Application No. 60 / 557,569, filed Mar. 30, 2004, which is incorporated herein by reference in its entirety and for all purposes.FIELD OF THE INVENTION

[0002] The present invention relates generally to fibrous structures including structured coextrudable polymeric components, useful for making identifiers or taggants for a variety of products, and to processes for making and using the same. BACKGROUND OF THE INVENTION

[0003] Materials known generally as taggants have been proposed for incorporation into products to identify and / or verify various characteristics of the same. For example, taggants have been proposed for the identification of products such as explosives, certain bulk chemicals that can be used to make explosives, ammunition, paint, petroleum products, and documents, among others. Materials have also been applied to products to track point of origin, authenticity,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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