Process for making secure paper product

Claim 2

A process for making a paper product from which images cannot be copied by use of a xerographic photocopier that reproduces an image defined by print on the paper product by a process that includes sensing light received from the paper product upon the paper product being exposed to high intensity light within a predetermined portion of the light spectrum that is absorbed by the print, said paper making process comprising the steps of (a) mixing paper ingredients with a material selected from a group consisting of materials that totally absorb light within said predetermined portion of the light spectrum so that no light is received from the paper product by the light sensing means of the photocopier; and (b) processing the mixture of step (a) to provide a sheet of the mixture wherein step (a) comprises mixing the paper ingredients with a said selected material having light absorption characteristics that are dependent upon the orientation of such material with respect to incident light, wherein said selected material is uniformly oriented in a medium that can be oriented in accordance with the orientation of an applied electric field; and further comprising the step of (c) applying an electric field during step (b) to orient said selected material to provide a paper product having selected light absorption characteristics.

Claim 3

A process for making a paper product from which images cannot be copied by the use of a xerographic photocopier that reproduces an image defined by print on the paper product by a process that includes sensing light received from the paper product upon the paper product being exposed to high intensity light within a predetermined portion of the light spectrum that is absorbed by the print, and that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients with a material selected from a group consisting of materials that either respond to light within said predetermined portion of the light spectrum by flooding the light sensing means of the photocopier so as to obscure any image defined by print on the paper product, or totally absorb light within said predetermined portion of the light spectrum so that no light is received from the paper product by the light sensing means of the photocopier; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) embedding in the mixture during step (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electonic article surveillance system, wherein the embedded signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 4

A process for making a paper product from which images cannot be copied by the use of a xerographic photocopier that reproduces an image defined by print on the paper product by a process that includes sensing light received from the paper product upon the paper product being exposed to high intensity light within a predetermined portion of the light spectrum that is absorbed by the print, and that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients with a material selected from a group consisting of materials that either respond to light within said predetermined portion of the light spectrum by flooding the light sensing means of the photocopier so as to obscure any image defined by print on the paper product, or totally absorb light within said predetermined portion of the light spectrum so that no light is received from the paper product by the light sensing means of the photocopier; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) embedding in the mixture during step (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electonic article surveillance system, wherein the embedded signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 5

A process for making a paper product from which images cannot be copied by use of a xerographic photocopier that reproduces an image defined by print on the paper product upon the paper product being exposed to high intensity light within a predetermined portion of the light spectrum that is absorbed by the print, and that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients with a material selected from a group consisting of materials that either respond to light within said predetermined portion of the light spectrum by flooding the light sensing means of the photocopier so as to obscure any image defined by print on the paper product, or totally absorb light within said predetermined portion of the light spectrum so that no light is received from the paper product by the light sensing means of the photocopier; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) laminating between two sheets produced by steps (a) and (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system, wherein the laminated signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 6

A process for making a paper product from which images cannot be copied by use of a xerographic photocopier that reproduces an image defined by print on the paper product upon the paper product being exposed to high intensity light within a predetermined portion of the light spectrum that is absorbed by the print, and that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients with a material selected from a group consisting of materials that either respond to light within said predetermined portion of the light spectrum by flooding the light sensing means of the photocopier so as to obscure any image defined by print on the paper product, or totally absorb light within said predetermined portion of the light spectrum so that no light is received from the paper product by the light sensing means of the photocopier; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) laminating between two sheets produced by steps (a) and (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system, wherein the laminated signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 7

A process for making a paper product that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) making paper ingredients; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) embedding in the mixture during step (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system; wherein the embedded signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 8

A process for making a paper product that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) making paper ingredients; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) embedding in the mixture during step (b) means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system; wherein the embedded signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 9

A process for making a paper product that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) laminating between two sheets produced by steps (a) and (b), means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system; wherein the laminated signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.

Claim 10

A process for making a paper product that can be detected when the paper product is transported through an interrogation zone of an electronic article surveillance system, said paper making process comprising the steps of (a) mixing paper ingredients; (b) processing the mixture of step (a) to provide a sheet of the mixture; and (c) laminating between two sheets produced by steps (a) and (b), means for producing a unique signal in response to an interrogation signal, wherein said unique signal can be detected by an electronic article surveillance system; wherein the laminated signal producing means comprises a heat-treated amorphous magnetostrictive wire that responds to magnetic reversal by producing a high amplitude signal over a wide range of harmonics of the magnetic reversal frequency.