GB2331505A - Providing holograms on cans - Google Patents

Providing holograms on cans Download PDF

Info

Publication number
GB2331505A
GB2331505A GB9724651A GB9724651A GB2331505A GB 2331505 A GB2331505 A GB 2331505A GB 9724651 A GB9724651 A GB 9724651A GB 9724651 A GB9724651 A GB 9724651A GB 2331505 A GB2331505 A GB 2331505A
Authority
GB
United Kingdom
Prior art keywords
hologram
foil
cans
sheet
tinplate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9724651A
Other versions
GB9724651D0 (en
Inventor
John Ewart Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trivium Packaging UK Ltd
Original Assignee
Impress Metal Packaging Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Impress Metal Packaging Ltd filed Critical Impress Metal Packaging Ltd
Priority to GB9724651A priority Critical patent/GB2331505A/en
Publication of GB9724651D0 publication Critical patent/GB9724651D0/en
Publication of GB2331505A publication Critical patent/GB2331505A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20External fittings
    • B65D25/205Means for the attachment of labels, cards, coupons or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44DPAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/12Paint cans; Brush holders; Containers for storing residual paint
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02Details of features involved during the holographic process; Replication of holograms without interference recording
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005Adaptation of holography to specific applications
    • G03H1/0011Adaptation of holography to specific applications for security or authentication
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024Hologram nature or properties
    • G03H1/0244Surface relief holograms
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00Laminate comprising a hologram layer
    • G03H2250/10Laminate comprising a hologram layer arranged to be transferred onto a carrier body
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00Substrate bearing the hologram
    • G03H2270/10Composition
    • G03H2270/13Metallic

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

A can, preferably a metal can, is provided with a hologram on its surface as an anti-counterfeiting measure. The hologram is preferably applied by a hot foil blocking process in which a foil 14 carrying a heat-curable adhesive is pressed into contact with the can surface 10. The process can be applied to both metal and plastics cans, and to both a flat can blank 10 as shown and the curved surface of a made-up can. The hologram-bearing foil 14 is of very thin aluminium and is taken from a reel where it was stored on a backing sheet.

Description

2331505 1 CANS AND METHODS OF MANUFACTURE This invention relates to cans,
and to methods for the manufacture of cans. The invention is particularly, but not exclusively, concerned with cans such as are used for holding paint, oil both edible and lubricating, and chemicals.
The increase in recent years of counterfeiting has been a problem in many areas where goods and services are offered to the public. This problem is now of concern to the can industry where for example cans of paint may be offered for sale with the trade dress of the can indicating that the contents are from a particular manufacturer, whereas they are not.
It is a primary object of the present invention to provide a can which incorporates an anticounterfeiting measure. It is a secondary object of the present invention to provide a can which incorporates a special decorative surface effect.
In accordance with one aspect of the invention this is achieved by a can which bears a hologram on its surface.
Preferably, the can is a metal can, for example of tinplate.
In accordance with another aspect of the invention there is provided a method of manufacture of a can which includes the application of a hologram to the surface which is or will be the external surface of the can. Preferably, the application of the hologram is by the use of a hot foil blocking process. This is essentially a labelling process, using a heat-curable adhesive. 30 Holograms are produced by an embossing process using a nickel die. Masters for security holograms are very 2 expensive. UP to 14,000 lines per cm are embossed a few microns into the surface of a very thin aluminium foil. The foil is carried by a backing sheet and can be dispensed, as with labels. The underside of the foil is coated with a heats curable adhesive.
In the application of the hologram to the receiving surface by the hot foil blocking process, the said surface must be hot, for example of the order of 1900C for tinplate, and pressure has to be applied to the foil to press it against the surface. The important parameters are the temperature, the pressure, the pressure time and the adhesive used. These must be balanced to produce a satisfactory end product.
In order that the invention may be more fully understood, reference is made to the accompanying drawing which shows, schematically, the application of a hologram to a can blank.
The drawing illustrates the application of a hologram to a can blank which here is represented as a sheet 10 of tinplate. This is presented to the apparatus as a flat sheet. Below the sheet 10 is a platen 12. The foil bearing the hologram is indicated at 14 and the thickness is exaggerated in the drawing. In practice, the foil 14 is extremely thin. The foil is taken from a reel on which the foil is stored on a backing sheet. The foil is provided with a heat-curable adhesive on its underside and can be peeled from the backing sheet. In order to effect adhesion between the foil 14 and the tinplate 10, the surface of the sheet 10 must be hot, for example of the order of 1900C in the case of tinplate. This can be achieved either by the use of a heated platen 12, or by heating the sheet 10 to the appropriate temperature before it is brought into register with the platen. This can be achieved by passing the sheet through an induction oven for 3 example. Alternatively, one can use a combination of advance heating and heating via the platen.
When the foil 14 bearing the hologram is in register with the tinplate sheet 10, pressure is applied by a pressure pad 16 so that the heatcuring is carried out under pressure. The cycle time for this is approximately 5 or 6 seconds in the case of foil applied to tinplate at a temperature of about 190"C.
one can either carry out the process on an intermittent basis, i.e. by moving the sheet 10 on a "stop-start" basis, using a stationary platen and a vertically displaceable pressure pad 16, or one can alternatively carry out the application process with a continuously moving sheet 10 and by moving the other parts simultaneously with the sheet.
In the application of hologram foils to a rigid substrate such as a sheet 10 of tinplate, it is important that the tinplate surface is flat and that the foil is applied with precision. This is in order to achieve even pressure over the whole surface area of the foil. otherwise, an imperfect product will result.
After the hologram has been applied to the sheet 10, the sheet can then be made up into the can in the conventional way.
Although the present invention is particularly appropriate for use with metal cans, one could use the method described above for the application of holograms to cans made of plastics material. In that case however, a substantially lower temperature would be required, and a suitable adhesive.
Although, as described above, the process of the invention is carried out on a flat material, such as a sheet 10, it is also within the scope of the invention to apply a 4 hol ogram- bearing foil directly to the curved surface of a made-up can. This requires the provision of a suitably surved platen or its equivalent within the can and a pressure pad which has an appropriately curved surface. The process is essentially the same however as described above.

Claims (8)

CLAIMS:
1. A can which bears a hologram on its surface.
2. A can according to claim 1, in which the can is a 5 metal can.
3. A can as claimed in claim 2, in which the can is of tinplate.
4. A can according to claim 1, 2 or 3, bearing a hologram applied by a hot foil blocking process.
5. A method of manufacture of a can which includes the application of a hologram to the surface which is or will be the external surface of the can.
6. A method according to claim 5, which includes applying the hologram by a hot foil blocking process.
7. A method according to claim 5 or 6, in which a foil bearing the hologram is applied to tinplate at a temperature of the order of 19CC.
8. A method according to any of claims 5 to 7, in which pressure is applied to a foil bearing the hologram for a 0 period of about 5 or 6 seconds.
2
GB9724651A 1997-11-22 1997-11-22 Providing holograms on cans Withdrawn GB2331505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9724651A GB2331505A (en) 1997-11-22 1997-11-22 Providing holograms on cans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9724651A GB2331505A (en) 1997-11-22 1997-11-22 Providing holograms on cans

Publications (2)

Publication Number Publication Date
GB9724651D0 GB9724651D0 (en) 1998-01-21
GB2331505A true GB2331505A (en) 1999-05-26

Family

ID=10822447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9724651A Withdrawn GB2331505A (en) 1997-11-22 1997-11-22 Providing holograms on cans

Country Status (1)

Country Link
GB (1) GB2331505A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725111A (en) * 1986-07-29 1988-02-16 American Bank Note Holographics, Inc. Holograms embossed into metal surfaces
US4773718A (en) * 1986-07-29 1988-09-27 American Bank Note Holographics, Inc. Holograms embossed into metal surfaces
US4900111A (en) * 1989-02-15 1990-02-13 American Bank Note Holographics, Inc. Embossed holograms formed on hard metal surfaces
GB2237774A (en) * 1989-08-09 1991-05-15 Dainippon Printing Co Ltd Hologram forming sheet
JPH09212069A (en) * 1996-02-05 1997-08-15 Toppan Printing Co Ltd Hologram label and its production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725111A (en) * 1986-07-29 1988-02-16 American Bank Note Holographics, Inc. Holograms embossed into metal surfaces
US4773718A (en) * 1986-07-29 1988-09-27 American Bank Note Holographics, Inc. Holograms embossed into metal surfaces
US4900111A (en) * 1989-02-15 1990-02-13 American Bank Note Holographics, Inc. Embossed holograms formed on hard metal surfaces
GB2237774A (en) * 1989-08-09 1991-05-15 Dainippon Printing Co Ltd Hologram forming sheet
JPH09212069A (en) * 1996-02-05 1997-08-15 Toppan Printing Co Ltd Hologram label and its production

Also Published As

Publication number Publication date
GB9724651D0 (en) 1998-01-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)