Holographic document and method for forming

• US 5,464,690 A
• Filed: 04/04/1994
• Issued: 11/07/1995
• Est. Priority Date: 04/04/1994
• Status: Expired due to Term

• Current Assignee: National City Bank (The PNC Financial Services Group, Inc.)
• Original Assignee: NovaVision
• Inventors: Boswell, David R.
• Primary Examiner(s): Buffalow, Edith
• Application Number:
  US08/222,283
• Time in Patent Office: 582 Days
• Field of Search: 428/35.3, 428/35.8, 428/35.9, 428/346, 428/349, 428/457, 428/458, 428/462, 428/464, 428/467, 428/461, 428/484, 428/334, 283/86, 359/2, 264/1, 264/3, 427/208.2, 427/404, 427/407.1, 427/148
• US Class Current: 428/334
• CPC Class Codes: B29C 59/046 for layered or coated substantially flat surfaces
• CPC Class Codes: B29D 11/0073 Optical laminates
• CPC Class Codes: B29L 2017/00 Carriers for sound or information
• CPC Class Codes: B32B 15/08 of synthetic resin
• CPC Class Codes: B32B 2309/02 Temperature
• CPC Class Codes: B32B 2425/00 Cards, e.g. identity cards, credit cards
• CPC Class Codes: B32B 2429/00 Carriers for sound or information
• CPC Class Codes: B32B 37/22 involving the assembly of both discrete and continuous layers
• CPC Class Codes: B32B 38/00 Ancillary operations in connection with laminating processes
• CPC Class Codes: B32B 38/06 Embossing
• CPC Class Codes: B32B 38/1841 during laying up
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B41M 1/22 Metallic printing; Printing with powdered inks
• CPC Class Codes: B41M 1/24 combined with embossing printing machines for carrying out printing operations combined with embossing B41F19/02
• CPC Class Codes: B41M 3/14 Security printing securities B42D25/29
• CPC Class Codes: B41M 7/0027 using protective coatings or layers by lamination or by fusion of the coatings or layers
• CPC Class Codes: B42D 25/328 Diffraction gratings; Holograms
• CPC Class Codes: B44C 1/1729 Hot stamping techniques
• CPC Class Codes: G03H 1/0244 Surface relief holograms replicating hologram without interference recording G03H1/0276
• CPC Class Codes: G03H 1/0252 : Laminate comprising a hologram layer
• CPC Class Codes: G03H 1/028 : by embossing
• CPC Class Codes: G03H 2227/04 : Production line for mass production
• CPC Class Codes: G03H 2240/55 : Thickness
• CPC Class Codes: G03H 2250/10 : arranged to be transferred onto a carrier body adhesive layer G03H2250/35
• CPC Class Codes: G03H 2250/12 : Special arrangement of layers
• CPC Class Codes: G03H 2250/40 : Printed information overlapped with the hologram
• CPC Class Codes: H05K 3/046 : by selective transfer or selective detachment of a conductive layer
• CPC Class Codes: Y10S 428/913 : Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10T 156/1041 : Subsequent to lamination
• CPC Class Codes: Y10T 428/1338 : Elemental metal containing
• CPC Class Codes: Y10T 428/1438 : Metal containing
• CPC Class Codes: Y10T 428/1443 : Aluminum
• CPC Class Codes: Y10T 428/1457 : Silicon
• CPC Class Codes: Y10T 428/24802 : Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/24942 : including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/24975 : No layer or component greater than 5 mils thick
• CPC Class Codes: Y10T 428/263 : Coating layer not in excess of 5 mils thick or equivalent
• CPC Class Codes: Y10T 428/265 : 1 mil or less
• CPC Class Codes: Y10T 428/2804 : Next to metal
• CPC Class Codes: Y10T 428/2813 : Heat or solvent activated or sealable
• CPC Class Codes: Y10T 428/2817 : Heat sealable
• CPC Class Codes: Y10T 428/2826 : Synthetic resin or polymer
• CPC Class Codes: Y10T 428/31504 : Composite [nonstructural laminate]
• CPC Class Codes: Y10T 428/31663 : As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31667 : Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
• CPC Class Codes: Y10T 428/31678 : Of metal
• CPC Class Codes: Y10T 428/31681 : Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
• CPC Class Codes: Y10T 428/31692 : Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31696 : Including polyene monomers [e.g., butadiene, etc.]
• CPC Class Codes: Y10T 428/31699 : Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31703 : Next to cellulosic
• CPC Class Codes: Y10T 428/31714 : Next to natural gum, natural oil, rosin, lac or wax
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31801 : Of wax or waxy material
• CPC Class Codes: Y10T 428/31935 : Ester, halide or nitrile of addition polymer

Abstract

A holographic article and method for forming permits the party producing the final document to print the holographic image directly on the final document thereby permitting such party to retain and maintain control of its own embossing shim on which the hologram has been formed and which is utilized for embossing the holographic image on the document. A film upon which a holographic image can be directly stamped upon the final document includes a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons, a lacquer coating having a thickness in the range of 0.5 microns to 3 microns and a heat activatible adhesive. The metal layer lacquer coating and heat activatible adhesive are caused to be adhered to the substrate forming the final document during a stamping operation which releases said metal layer, lacquer coating and heat activatible adhesive from a plastic carrier film to which had initially been applied.

Claims

1. A method for forming a composite sheet adapted to apply a holographic image directly to a substrate comprising the steps of:

(a) providing a film of material selected from the group consisting of a polyester, biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride;

(b) depositing on said film a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons;

(c) applying to said metal layer a first lacquer coating having a thickness in the range of 0.5 microns to 3 microns, said first lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose;

(d) applying to said first lacquer coating a second lacquer coating having a thickness in the range of 0.05 microns to 0.2 microns, said second lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose; and

(e) applying to said second lacquer coating a heat activatible adhesive having a thickness in the range of 0.75 microns to 4 microns.

2. A method for forming a composite sheet adapted to apply a holographic image directly to a substrate comprising the steps of:

(a) providing a film of material being a member selected from the group consisting of a polyester, biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride;

(b) depositing on said film a release coating, said release coating being a member selected from the group consisting of wax and siloxane;

(c) depositing on said film a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons;

(d) applying to said metal layer a first lacquer coating having a thickness in the range of 0.5 microns to 3 microns, said first lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose;

(e) applying to said first lacquer coating a second lacquer coating having a thickness in the range of 0.05 microns to 0.2 microns, said second lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose; and

(f) applying to said second lacquer coating a heat activatible adhesive having a thickness in the range of 0.75 to 4 microns.

3. A method for forming a composite sheet adapted to apply a holographic image directly to a substrate comprising the steps of:

(a) providing a film of material selected from the group consisting of a polyester, biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride;

(b) depositing on said film a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons;

(c) applying to said metal layer a lacquer coating having a thickness in the range of 0.5 microns to 3 microns, said lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose;

(d) applying to said lacquer coating a heat activatible adhesive having a thickness in the range of 0.75 microns to 4 microns.

4. A method for forming a composite sheet adapted to apply a holographic image directly to a substrate comprising the steps of:

(a) providing a film of material selected from the group consisting of a polyester, biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride;

(b) depositing on said film a release coating, said release coating being a member selected from the group consisting of wax and siloxane;

(c) depositing on said film a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons;

(d) applying to said metal layer a lacquer coating having a thickness in the range of 0.5 microns to 3 microns, said lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose;

(e) applying to said lacquer coating a heat activatible adhesive having a thickness in the range of 0.75 microns to 4 microns.

5. An article of manufacture comprising:

(a) a plastic film substrate wherein said substrate is selected from the group consisting of a polyester, a biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride; and

(b) a composite sheet engaged to said substrate and releasable therefrom upon application of heat and pressure, said composite sheet including;

(i) a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons facing said substrate,

(ii) a lacquer coating having a thickness in the range of 0.5 micron to 3 microns engaged to said layer of metal, said lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose, and

(iii) a heat activatible adhesive having a thickness in the range of 0.75 micron to 4 microns;

said composite sheet adapted to receive a holographic image or diffraction grating pattern in said layer of metal following release of said composite sheet from said substrate.

6. The article of claim 5, wherein said layer of metal is aluminum.

7. The article of claim 6 further including a release coating of a wax or siloxane between said layer of metal and said substrate.

8. The article of claim 7, wherein said release coating has a thickness in the range of 0.025 micron to 1 micron.

9. The article of claim 8, wherein said release coating is microcrystalline wax or a partially saponified montan wax.

10. The article of claim 6 further including a tie coating between said lacquer coating and said heat activatible adhesive, said tie coating having a thickness in the range of 0.05 micron to 0.2 micron and being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose.

11. The article of claim 10 further including a release coating of a wax or siloxane between said layer of metal and said substrate.

12. The article of claim 11, wherein said release coating has a thickness in the range of 0.025 micron to 1 micron.

13. The article of claim 12, wherein said release coating is microcrystalline wax or a partially saponified montan wax.

14. An article of manufacture comprising:

(a) a plastic film substrate wherein said substrate is selected from the group consisting of a polyester, a biaxially oriented polypropylene, cellulosic triacetate, polystyrene, polyethylene and polyvinylchloride; and

(b) a composite sheet engaged to said substrate and releasable therefrom upon application of heat and pressure, said composite sheet including;

(i) a release coating of a wax or siloxane between said layer of metal and said substrate having a thickness in the range of 0.025 micron to 1 micron,

(ii) a layer of aluminum having a thickness in the range of 20 millimicrons to 100 millimicrons facing said substrate,

(iii) a lacquer coating having a thickness in the range of 0.5 micron to 3 microns engaged to said layer of metal, said lacquer coating being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose,

(iv) a tie coating having a thickness in the range of 0.05 micron to 0.2 micron and being a member selected from the group consisting of acrylic, styrene-acrylonitrile polymer, polyester and nitrocellulose, and

(v) a heat activatible adhesive having a thickness in the range of 0.75 micron to 4 microns;

said composite sheet adapted to receive a holographic image or diffraction grating pattern in said layer of metal following release of said composite sheet from said substrate.