Process and apparatus for producing digital yarns using metal filaments for info-communications and digital yarns produced by said process
First Claim
1. A process for producing conductive yarns for use in info-communication, the process comprising the steps of:
- (i) feeding a plurality of metal filaments;
(ii) heating the plurality of metal filaments to soften the plurality of metal filaments;
(iii) drafting and cutting the plurality of metal filaments into a plurality of slivers having a predetermined length;
(iv) drawing and twisting the plurality of slivers into a yarn;
(v) winding the yarn on a bobbin;
(vi) coating the yarn with a waterproof material and an electromagnetic shielding material in a thin film while unwinding the yarn from the bobbin;
(vii) drying the yarn; and
(viii) covering the yarn with a textile yarn.
2 Assignments
0 Petitions
Accused Products
Abstract
A process and apparatus of producing conductive yarns in use for info-communication and conductive yarns produced thereby, in which the conductive yarns are produced using metal filaments. The conductive yarns and the production process thereof can improve productivity and thus save production costs over conventional conductive yarns and the production processes thereof. The conductive yarns can be produced into fine yarns of minimized cross section and with various colors. Clothes made of the conductive yarns can perform an info-communication function without any breakage in a repeatedly bending part and be washed.
74 Citations
19 Claims
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1. A process for producing conductive yarns for use in info-communication, the process comprising the steps of:
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(i) feeding a plurality of metal filaments; (ii) heating the plurality of metal filaments to soften the plurality of metal filaments; (iii) drafting and cutting the plurality of metal filaments into a plurality of slivers having a predetermined length; (iv) drawing and twisting the plurality of slivers into a yarn; (v) winding the yarn on a bobbin; (vi) coating the yarn with a waterproof material and an electromagnetic shielding material in a thin film while unwinding the yarn from the bobbin; (vii) drying the yarn; and (viii) covering the yarn with a textile yarn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A conductive yarn for use in info-communication, the conductive yarn comprising:
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a plurality of slivers wherein the plurality of slivers are drafted and cut from a plurality of metal filaments wherein the plurality of metal filaments are heated to soften the plurality of metal filaments wherein the plurality of slivers are drawn and twisted; a first coating on the plurality of slivers wherein the first coating is a water proof material; a second coating on the plurality of slivers wherein the second coating is an electromagnetic shielding material; and a covering on the plurality of slivers wherein the covering is a textile yarn.
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10. An apparatus for producing conductive yarns for use in info-communication, the apparatus comprising:
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a feed roller for feeding a plurality of metal filaments; a heater for heating the plurality of metal filaments to soften the plurality of metal filaments; a plurality of stretching rollers for drafting and cutting the plurality of metal filaments into a plurality of slivers with a predetermined length; a spinning frame for drawing and twisting the plurality of slivers into a yarn wherein the spinning frame has a back roller and a front roller; a winder for winding the yarn; a coater for coating the yarn with a waterproof material and an electromagnetic shielding material in a thin film while unwinding the yarn from a bobbin; a drier for drying the yarn; and a covering unit for covering the yarn with a textile yarn. - View Dependent Claims (11, 12, 13)
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14. A process for producing conductive yarns for use in info-communication, the process comprising the steps of:
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(i′
) feeding a plurality of metal filaments;(ii′
) heating the plurality of metal filaments to soften the plurality of metal filaments;(iii′
) collecting the plurality of metal filaments;(iv′
) twisting the plurality of metal filaments to produce a filament yarn;(v′
) winding the filament yarn on a bobbin;(vi′
) coating a waterproof material and an electromagnetic shielding material in a thin film on the filament yarn while unwinding the filament yarn from the bobbin;(vii′
) drying the filament yarn; and(viii′
) covering the filament yarn with a textile yarn. - View Dependent Claims (15, 16, 17)
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18. (canceled)
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19. An apparatus for producing conductive yarns for use in info-communication, the apparatus comprising:
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a feed roller for feeding a plurality of metal filaments; a heater for heating the plurality of metal filaments to soften the plurality of metal filaments; a collector for collecting the plurality of metal filaments; a rotor for twisting the plurality of metal filaments into a filament yarn; a winder for winding the filament yarn on a bobbin; a coater for coating the filament yarn with a waterproof material and an electromagnetic shielding material in a thin film while unwinding the filament yarn from the bobbin; a drier for drying the filament yarn; and a covering unit 5 for covering the filament yarn with a textile yarn.
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Specification