US 2021/0232879 A1 · RFID SYSTEM SUITABLE FOR BEING ATTACHED TO FABRICS AND METHOD FOR THE DIGITALIZATION OF FABRICS

Abstract

The present invention refers to the field of electronic devices, with reference to the radio transmission and reception field operating in radiofrequency and, more particularly, to the TAG field operating in RFID technology. In particular, the present invention deals with RFID communication devices preferably applied or realized on rigid or semi-rigid supports, with particular reference to textile supports. Even more particularly, the present invention intends to improve and enhance an invention described by the same applicant in a previous application mentioned in the description. Similar to at least some of the objects described in the invention mentioned above, also the present invention has, among others, the purpose of describing a method and a relative innovative electronic system, suitable for being made, or solidarily fixed to a rigid or semi-rigid support, in particular with reference to certain types of textile supports suitable for the purpose, which will be the object of some preferred embodiments described hereinbelow.

Claims15

Dependent claims

A RFID system suitable to be attached to fabrics, said RFID system comprising at least a device, said device comprising at least:

at least one dielectric base layer;
a conductive foil comprising at least one slit;
at least one rigid electronic module comprising an antenna;
at least one closing dielectric layer;
wherein said device comprises at least a layer of supporting material for structurally supporting said device, said RFID system being a HF and/or a NFC RFID system, said conductive foil being suitable to refract a magnetic field emitted by a RFID reader and said slit being longitudinal and centered with respect to the conductive foil to allow the distribution of the force lines of the magnetic field inverting the direction of reflection of the magnetic field itself, the magnetic field crossing the conductive foil through the slit, activating the rigid electronic module, amplifying the signal emitted by said rigid electronic module, the dielectric base layer and the closing dielectric layer being thermo pressed between them and both with the layer of supporting fabric and are so coupled fused together, the rigid electronic module and the conductive foil remaining housed between said dielectric base layer and said closing dielectric layer.

2 more elements

A method for the digitalization of fabrics and for the realization of RFID systems for fabrics comprising:

sizing of fabric or processing from a roll of fabric;
pre-forming of a dielectric base layer in thermoadhesive or thermoplastic polyurethanes (TPU) with one of a die, or laser cutting or mechanical cutting, realization with a defined shape, Sdie basis<Sdie closure;
hot application of the TPU layer with hot heat press for about 15 seconds at about 55° C.;
application of the TPU layer with ultrasound system to lower an overall operating temperature and operating times for about 4 seconds at Tamb;
pre-forming of an aluminum or conductive foil by one of die cutting, laser cutting or mechanical cutting;
positioning of the foil, centering on the layer based TPU layer with a numerical control system, or pick&place system;
optionally passage with heat press at about 150° C. for about 1-2 seconds to adhere the foil with the TPU, in a bonding phase providing a glue point to fix a module to the foil with a dedicated machine for bonding and fixing by gluing;
positioning the rigid electronic module fusing pick&place;
pre-forming of a second closing TPU dielectric layer, that is a cover layer, using die cutting, laser cutting or mechanical cutting;
positioning and heat-sealing of the second closing TPU dielectric layer at about 155° C. for about 15 seconds;
assembling the RFID system by stitching, forming the side of the second closing TPU dielectric layer, in TPU, the fabric being adapted to be printed with one of a logo or a fantasy of a receiving tissue to be substantially invisible, the fabric being realized with a fabric edge in excess of the area of creation of an electronic device to allow the subsequent sewing on a garment or another textile support.

8 more elements

Dependencies are inferred from the claim text.

Rfid system suitable for being attached to fabrics and method for the digitalization of fabrics

Life of this patent

Rfid system suitable for being attached to fabrics and method for the digitalization of fabrics

Life of this patent

Abstract

Claims15