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AssigneeFeyecon Development & Implementation B.V.
InventorsMartijn Van Der Van Der Kraan, Daniela Oana Trambitas, Ionela Georgiana Ion, Geert Feye Woerlee
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The invention relates to the marking of textile products that have been dyed using a supercritical dyeing process. More particularly, the invention provides a process of marking a textile substrate with a tracer, said process comprising contacting the textile substrate with a supercritical or near-critical dyeing medium containing a dye and a tracer, said tracer being selected from a metal chelate and a chemiluminescent agent. The process of the present invention uses the supercritical or near-critical dyeing medium as a vehicle for depositing a tracer onto the textile substrate that is also dyed using this medium. The presence of the deposited tracer on the dyed textile can be detected using a simple and reliable authentication method. The invention also concerns a marked textile product obtained by the aforementioned process. Also provided are a dyeing composition that can be used in the aforementioned process as well as methods for authenticating textile products that have been marked using his process.
A process of marking a textile substrate with a tracer, comprising contacting the textile substrate with a supercritical or near-critical dyeing medium a dye and a tracer selected from a metal chelate and a chemiluminescent agent.
A dyeing composition in the form of a powder comprising at least 10 wt. % of dye and at least 1 mg of a tracer per kg of the dye, the tracer being selected from a metal chelate and a chemiluminescent agent.
A method of authenticating a textile product, comprising applying one or more detection liquids onto the textile product to produce a luminescence mixture comprising at least 0.1 μg/l of chemiluminescent agent, at least 0.1 μg/l of an oxidizing agent and at least 0.1 wt % of a water-miscible organic solvent;
A method of authenticating a textile product, comprising applying one or more detection liquids onto the textile product to produce a luminescence mixture comprising at least 0.1 μg/l of dissolved metal cation, at least 0.1 μg/l of oxidizing agent and at least 0.1 wt % of a water-miscible organic solvent;
(canceled)
Dependencies are inferred from the claim text.