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US 2003/0102225 A1Published application
Gold layer-laminated fabric and method for fabricating the same
AssigneesAmic AB, Chul-Soo Choi
InventorSun-Ki Kim
Life of this patent
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Abstract
The conductive fabric is fabricated by preparing a base fibrous fabric substrate having the form of a woven, non-woven, or mesh sheet, forming a first layer formed on the fibrous fabric substrate in accordance with an electroless plating process, the first layer being made of copper, and forming a second layer as an externally exposed layer, on the first layer continuously, the second layer being made of gold or platinum.
Claims15
A conductive fabric comprising:
- a fibrous fabric substrate;
- a first layer of copper formed on the fibrous fabric substrate by an electroless plating process;
- and
- a second layer of gold or platinum formed on the first layer continuously and exposed to the outside.
1 more element
A method for fabricating a conductive fabric, the method comprising the steps of:
- preparing a fibrous fabric substrate fabricated using a polyester-based fiber which is a condensation polymer of a terephthalic acid and an isopropyl alcohol;
- conducting an etching process applying 80 to 90 g/l of a sodium hydroxide to the fibrous fabric substrate to partially remove the terephthalic acid from the fibrous fabric substrate at a temperature of 80° C.;
- applying a hydrochloric acid to the fibrous fabric substrate to neutralize the sodium hydroxide
- substituting the complex salt for a site where the telephthalic acid is removed, wherein the complex salt consisting of a palladium chloride (PdCl2), a tin chloride (SnCl2), and a hydrochloric acid (HCl);
- applying a sulphuric acid to the fibrous fabric substrate at a temperature of about 40 to 60° C. to metallize a palladium ion contained in the complex salt;
- washing the fibrous fabric substrate and dipping the fibrous fabric substrate into a first solution containing a cuprous chloride, a formalin, a Rochelle salt, a citrate, an ethylene diamine tetraacetic acid (EDTA), and a sodium hydroxide to form a copper layer on the fibrous fabric substrate;
- and
- dipping the fibrous fabric substrate into a second solution containing a potassium gold cyanide, an EDTA, a citrate, and an aqueous ammonia to form a gold layer on the copper layer.
5 more elements
Dependencies are inferred from the claim text.