Method for manufacturing a product mainly made of paper including, therein, at least one radio-frequency electromagnetic wave transceiver

A method for manufacturing a product mainly made of paper including at least one radio-frequency electromagnetic wave transceiver adapted both to receive at least a first predefined signal and to emit, upon receiving said first signal, at least a second signal, also predefined,

• said method comprising:
• a) providing at least a first and a second sheet, each of which:
• comprising a first and a second face which are mutually opposite;
• being mainly made of paper;
• having a weight not less than 60 gr/m2;
• b) applying gluing means at said first face of said first sheet;
• c) connecting said transceiver, or each of said transceivers if more than one, to the first face of said second sheet;
• d) if in step b) said gluing means have a temperature above 55° C.:
• waiting for a sufficient period of time so that said gluing means cool down to such an extent that the temperature of said gluing means becomes equal to or lower than 55° C. and/or
• cooling down said gluing to a temperature equal to or lower than 55° C.;
• e) if in step b) said gluing means have a temperature equal to or lower than 55° C., within 30 seconds from when said gluing means are applied at said first face of said first sheet, opposing said sheets so that said gluing means come into contact, at least partially, with said first face of said second sheet and with said transceiver or with each of said transceivers if more than one, so as to mutually connect said sheets, by means of said gluing means, at said first faces, to said transceiver, or to each of said transceivers if more than one, interposed between said sheets, if instead in step b) said gluing means have a temperature above 55° C., within 30 seconds from when the temperature of said gluing means, once applied at said first face of said first sheet, becomes equal to or lower than 55° C., opposing said sheets so that said gluing means come into contact, at least partially, with said first face of said second sheet and with said transceiver or with each of said transceivers if more than one,
• so as to mutually connect said sheets, by means of said gluing means, at said first faces, to said transceiver, or to each of said transceivers if more than one, interposed between said sheets;
• f) pressing said sheets against each other at a first pressure and for a period of time not less than 0.25 seconds,
• said sheets being pressed against each other so that said gluing means are tightened between:
• said first face of said first sheet
• and
• said first face of said second sheet and said transceiver, or each of said transceivers if more than one,
• if said sheets have the same weight and if the weight of each of said sheets is:
• equal to or lower than 90 gr/m2, said first pressure being not higher than 368 N/cm2;
• higher than 90 gr/m2 and lower than or equal to 160 gr/m2, said first pressure being not higher than 518 N/cm2;
• higher than 160 gr/m2 and lower than or equal to 350 gr/m2, said first pressure being not higher than 675 N/cm2;
• higher than 350 gr/m2, said first pressure being not higher than 1125 N/cm2,
• if instead said sheets have different weights and if the weight of the sheet, between said sheets, having a lower weight is:
• equal to or lower than 90 gr/m2, said first pressure being not higher than 368 N/cm2;
• higher than 90 gr/m2 and lower than or equal to 160 gr/m2, said first pressure being not higher than 518 N/cm2;
• higher than 160 gr/m2 and lower than or equal to 350 gr/m2, said first pressure being not higher than 675 N/cm2;
• higher than 350 gr/m2, said first pressure being not higher than 1125 N/cm2;
• g) pressing said sheets against each other at a second pressure and cutting said sheets, together with said gluing means, so as to divide said sheets, together with said gluing means, into at least a first part including said transceiver, or each of said transceivers if more than one, and a second part to be discarded,
• said sheets being pressed against each other so that said gluing means are tightened between:
• at least a first portion of said first face of said first sheet
• and
• at least a second portion of said second face of said second sheet and/or said transceiver or one or more of said transceivers if more than one,
• if said gluing means are tightened, at least partially, between said first portion and said transceiver, or one or more of said transceivers if more than one, said second pressure being not higher than 6250 N/cm2 per cm2 of the outer surface of said transceiver tightening said gluing means, or of the overall outer surface of said transceivers tightening said gluing means, said sheets, together with said gluing means, being cut by pressing at least one cutting tool against said second face of at least one of said sheets, so that said cutting tool passes through said sheets and said gluing means,
• said first part obtained at the end of step g) corresponding to said product including said transceiver or each of said transceivers if more than one.