This heading covers :
(1) Yarn consisting of any textile material (including monofilament, strip and the like and paper yarn) combined with metal thread or strip, whether obtained by a process of twisting, cabling or by gimping, whatever the proportion of the metal present. The gimped yarns are obtained by wrapping metal thread or strip spirally round the textile core which does not twist with the metal. Precious metals or plated metals are frequently used. (2) Yarn of any textile material (including monofilament, strip and the like, and paper yarn) covered with metal by any other process. This category includes yarn covered with metal by electro-deposition, or by giving it a coating of adhesive (e.g., gelatin) and then sprinkling it with metal powder (e.g., aluminium or bronze). The heading also covers products consisting of a core of metal foil (generally of aluminium), or of a core of plastic film coated with metal dust, sandwiched by means of an adhesive between two layers of plastic film. The heading covers multiple (folded) or cabled yarn containing plies of the yarn referred to above (e.g., fancy cords as used by confectioners, obtained by twisting together two or more metallised yarns as described above). It further includes certain other forms of yarn made in the same way and used for similar purposes, consisting of two or more parallel metallised yarns held together with a binding of metal thread or strip, and yarn or bundles of yarn gimped with yarn of this heading. Metallised yarn may be gimped. It is used in the manufacture of trimmings and lace and of certain fabrics, as fancy cords, etc. The heading does not include : (a) Yarn composed of a mixture of textile materials and metal fibres conferring on them an antistatic effect (Chapters 50 to 55, as the case may be). (b) Yarn reinforced with metal thread (heading 56.07). (c) Cords, galloons or other articles having the character of ornamental trimmings (heading 58.08). (d) Wire or strip of gold, silver, copper, aluminium or other metals (Sections XIV and XV).
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