Method for making an identification card having features for testing in incident and transmitted light

Claim 1

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminated process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizing said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color-intensity than the surrounding areas and wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 2

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminated process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizing said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color-intensity than the surrounding areas and wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 3

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing the layer having the lower softening temperature with a pattern of either magnetically or electrically conductive coating; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that said coatingpattern is situated between said at least two layers; applying heat and pressure all over the surface of the layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the power softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure by at least partially filling impressions of the surface relief structure and such that said coating-pattern is distorted in accordance with said relief structure and such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color intensity than the surrounding areas, and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 4

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing the layer having the lower softening temperature with a pattern of either magnetically or electrically conductive coating; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that said coatingpattern is situated between said at least two layers; applying heat and pressure all over the surface of the layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the power softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure by at least partially filling impressions of the surface relief structure and such that said coating-pattern is distorted in accordance with said relief structure and such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color intensity than the surrounding areas, and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 5

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing one surface of the layer having the lower softening temperature with a pattern of magnetically or electrically conductive coating; providing said surface of higher softening temperature being provided with said pattern with a relief structure without throughgoing openings whereby said coatingpattern is distorted in accordance with said relief structure; superposing said at least two layers such that their surface being provided with said relief structure is adjacently situated to said layer having the lower softening temperature such that the coating-pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure but at least partially filling impressions of the surface relief structure such that the laminating structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to their thickness wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 6

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing one surface of the layer having the lower softening temperature with a pattern of magnetically or electrically conductive coating; providing said surface of higher softening temperature being provided with said pattern with a relief structure without throughgoing openings whereby said coatingpattern is distorted in accordance with said relief structure; superposing said at least two layers such that their surface being provided with said relief structure is adjacently situated to said layer having the lower softening temperature such that the coating-pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure but at least partially filling impressions of the surface relief structure such that the laminating structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to their thickness wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 7

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing one face of the layer having the lower softening temperature with a pattern of magnetically or electrically conductive coating; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that the coatingpattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, within the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure and simultaneously distorts said coating-pattern in accordance with said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimension, said layers locally varying with respect to the thickness and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers and such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 8

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing one face of the layer having the lower softening temperature with a pattern of magnetically or electrically conductive coating; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that the coatingpattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, within the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure and simultaneously distorts said coating-pattern in accordance with said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimension, said layers locally varying with respect to the thickness and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers and such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 15

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing the layer having the lower softening temperature with a printed pattern; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that said printed pattern is situated between said at least two layes; applying heat and pressure all over the surface of the layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure by at least partially filling impressions of the surface relief structure and such that said printed pattern is distorted in accordance with said relief structure and such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color intensity than the surrounding areas, and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 16

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing the layer having the lower softening temperature with a printed pattern; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that said printed pattern is situated between said at least two layes; applying heat and pressure all over the surface of the layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure by at least partially filling impressions of the surface relief structure and such that said printed pattern is distorted in accordance with said relief structure and such that the laminated structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to the thickness such that when subjected to transmitted light the areas of greater thickness within the layer of less transparency appear to be darker than the surrounding areas whereas when subjected to incident light said areas having a higher color intensity than the surrounding areas, and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers such that said relief structure and said distorted coating-pattern is visible from the outside of the card.

Claim 17

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing one surface of the layer having the lower softening temperature with a printed pattern; providing said surface of higher softening temperature being provided with said pattern with a relief structure without throughgoing openings whereby said printed pattern is distorted in accordance with said relief structure; superposing said at least two layers such that their surface being provided with said relief structure is adjacently situated to said layer having the lower softening temperature such that the printed pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure but at least partially filling impressions of the surface relief structure such that the laminating structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to their thickness wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 18

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to transparency and softening temperature; providing one surface of the layer having the lower softening temperature with a printed pattern; providing said surface of higher softening temperature being provided with said pattern with a relief structure without throughgoing openings whereby said printed pattern is distorted in accordance with said relief structure; superposing said at least two layers such that their surface being provided with said relief structure is adjacently situated to said layer having the lower softening temperature such that the printed pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure but at least partially filling impressions of the surface relief structure such that the laminating structure has a constant thickness with respect to its outer dimensions, said layers having different transparencies locally varying with respect to their thickness wherein said layers are provided within said identity card such that the relief structure is covered at one face thereof only by transparent layers such that said relief structure is visible from the outside of the card.

Claim 19

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing one face of the layer having the lower softening temperature with a printed pattern; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that the printed pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure and simultaneously distorts said printed pattern in accordance with said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimension, said layers locally varying with respect to the thickness and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers and such that said relief structure and said distorted coating-pattern is visible from the outside of this card.

Claim 20

A method of producing an identification card comprising the steps of providing at least two layers of synthetic material, said layers differing with respect to softening temperature; providing at least one surface of the layer having the higher softening temperature with a relief structure without throughgoing openings, said structure corresponding to a pattern or characters and said relief structure being provided by either excavation or deformation of said layer up to a certain depth; providing one face of the layer having the lower softening temperature with a printed pattern; superposing said at least two layers such that the at least one surface of the layer being provided with said relief structure is adjacently situated to said layer having the lower softening temperature and such that the printed pattern is situated between said two layers; applying heat and pressure all over the surface of the superposed layers for laminating said layers, wherein the heat is applied such that the temperature within the superposed layers during the laminating process is higher than the softening temperature of the layer having the lower softening temperature but said temperature being lower than the softening temperature of the layer being provided with said relief structure such that the layer having the lower softening temperature equalizes said relief structure and simultaneously distorts said printed pattern in accordance with said relief structure by at least partially filling impressions of the surface relief structure such that the laminated structure has a constant thickness with respect to its outer dimension, said layers locally varying with respect to the thickness and wherein said layers are provided within said identity card such that said relief structure is covered at one face thereof only by transparent layers and such that said relief structure and said distorted coating-pattern is visible from the outside of this card.