GB2245847A - Stamping foil - Google Patents

Stamping foil Download PDF

Info

Publication number
GB2245847A
GB2245847A GB9007363A GB9007363A GB2245847A GB 2245847 A GB2245847 A GB 2245847A GB 9007363 A GB9007363 A GB 9007363A GB 9007363 A GB9007363 A GB 9007363A GB 2245847 A GB2245847 A GB 2245847A
Authority
GB
United Kingdom
Prior art keywords
stamping foil
marking
layer
marking layer
release layer
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Withdrawn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
GB9007363A
Other versions
GB9007363D0 (en
Inventor
Derek Marvyn Lowdon
Jonathan David Cohen
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.)
FEDERAL PRINTERS Ltd
Original Assignee
FEDERAL PRINTERS 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 FEDERAL PRINTERS Ltd filed Critical FEDERAL PRINTERS Ltd
Priority to GB9007363A priority Critical patent/GB2245847A/en
Publication of GB9007363D0 publication Critical patent/GB9007363D0/en
Publication of GB2245847A publication Critical patent/GB2245847A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1729—Hot stamping techniques

Landscapes

  • Laminated Bodies (AREA)

Abstract

A stamping foil for security labelling purposes comprises a flexible backing sheet, a marking layer of a verifiable or active substance and a release layer intermediate the backing sheet and the marking layer. The marking layer preferably includes a photochromic ink.

Description

STAMPING FOIL The present invention relates to stamping foils.
A stamping foil is a flexible sheet, typically of a plastics material, which is coated with a release layer which is itself coated with a marking material such as an ink. In use, a heated metal die is applied to the rear surface of the stamping foil and pressure is applied. The heat and pressure together cause the release layer (typically wax) to loosen the marking material from the flexible sheet. The pressure of the die presses the marking material onto a substrate to be marked, leaving it deposited there.
Some stamping foils make use of cold dies, rather than heated dies, but the principle is essentially the same.
It is an object of the present invention to provide a stamping foil which can be used for security labelling purposes.
According to the present invention there is provided a stamping foil comprising a flexible backing sheet, a marking layer of a verifiable or active substance and a release layer intermediate the backing sheet and the marking layer.
Preferably, the active substance comprises a photochromic ink or marking material, either naturally colourless or coloured by the addition of pigmentation.
Suitable photochromic inks include, for example, a flexographic ink or those inks described in GB patent application 2214191 and European application 327788.
The marking layer may include bonding agents to assist in the bonding of the marking layer onto the article to be marked. Alternatively, the marking layer could be coated with a suitable adhesive. The release layer may be wax or wax-based.
Traditional stamping foils, for the transfer of conventional non-security designs onto an article, normally make use of dyes in the release layer. In the present proposal, on the other hand, dyes in the release layer are not used but instead there is a separate marking layer (for example a pigmented or metallic material) on top of the release layer. This could be placed there by any conventional printing process, such as lithographic printing or ink jet printing. It would also be possible to apply the marking layer by means of pen/pencil-type applicators or even by immersing the backing sheet in the active substance or by passing it through a roller system which coats the surface. The substance could also be brushed on.
Instead of or in addition to photochromic ink, the verifiable or active substance could include any one or more of the following: ultraviolet reactive inks or marking materials, fluorescent inks or marking materials, magnetic inks or marking materials, phosphor-type inks or marking materials, and other rare earth minerals.
The invention may be carried into practice in a number of ways, but in one exemplary embodiment comprises a plastics material backing sheet having a wax-based release layer thereon. Printed onto this release layer, by lithographic means, is a printing ink incorporating photochromic compounds and inhibiters.

Claims (15)

CLAIMS:
1. A stamping foil comprising a flexible backing sheet, a marking layer of a verifiable or active substance and a release layer intermediate the backing sheet and the marking layer.
2. A stamping foil as claimed in Claim 1 in which the marking layer comprises a photochromic marking material.
3. A stamping foil as claimed in any one of the preceding claims in which the marking layer is fluorescent.
4. A stamping foil as claimed in any one of the preceding claims in which the marking layer is magnetic.
5. A stamping foil as claimed in any one of the preceding claims in which the marking layer includes rare earth minerals.
6. A stamping foil as claimed in Claim 2 in which the marking material is ink.
7. A stamping foil as claimed in Claim 6 in which the ink is of the phosphor-type.
8. A stamping foil as claimed in any one of the preceding claims in which the marking layer includes bonding agents.
9. A stamping foil as claimed in any one of the preceding claims in which the marking layer is coated with an adhesive.
10. A stamping foil as claimed in any one of the preceding claims in which the release layer does not incorporate a dye.
11. A stamping foil as claimed in any one of the preceding claims in which the release layer is wax-based.
12. A stamping foil as claimed in any one of the preceding claims in which the marking layer has been applied to the release layer by printing.
13. A stamping foil as claimed in any one of Claims 1-11 in which the marking layer has been applied to the release layer by brushing or painting.
14. A stamping foil as claimed in any one of Claims 1-11 in which the marking layer has been applied to the release layer by immersing the backing sheet in the verifiable or active substance.
15. A stamping foil substantially as specifically described.
GB9007363A 1990-04-02 1990-04-02 Stamping foil Withdrawn GB2245847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9007363A GB2245847A (en) 1990-04-02 1990-04-02 Stamping foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9007363A GB2245847A (en) 1990-04-02 1990-04-02 Stamping foil

Publications (2)

Publication Number Publication Date
GB9007363D0 GB9007363D0 (en) 1990-05-30
GB2245847A true GB2245847A (en) 1992-01-15

Family

ID=10673715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9007363A Withdrawn GB2245847A (en) 1990-04-02 1990-04-02 Stamping foil

Country Status (1)

Country Link
GB (1) GB2245847A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781182A1 (en) * 1998-07-15 2000-01-21 Cerid Production method for printing a group of display labels, uses velum paper having eucalyptus base with uniform fluorescent covering applied and subsequently, printing label edge coloring
EP1050485A1 (en) * 1999-05-04 2000-11-08 Wolff Walsrode AG Tear strip with security feature, production method and its use in packaging material
EP1050483A1 (en) * 1999-05-04 2000-11-08 Wolff Walsrode AG Foil with security feature, production method and its use as packaging material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388155A (en) * 1972-05-31 1975-03-26 Whiley Ltd George M Transfer foils
GB1524960A (en) * 1974-12-24 1978-09-13 Capper Ltd Ben Decalcomanias
EP0050794A1 (en) * 1980-10-29 1982-05-05 Nordipa AG Transfer lacquer film and method of making it
GB2132940A (en) * 1982-12-13 1984-07-18 Ajinomoto Kk Release sheet
US4687680A (en) * 1983-12-28 1987-08-18 Oike Industrial Co., Ltd. Stamping foil
EP0245514A1 (en) * 1985-11-15 1987-11-19 Goyo Paper Working Co. Ltd. Transfer paper for imparting solid pattern and process for its production
GB2195270A (en) * 1986-08-22 1988-04-07 Plessey Co Plc Marking of articles with photochromic compounds
EP0276965A1 (en) * 1987-01-30 1988-08-03 Johnson Matthey Public Limited Company Transfer for automatic application

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388155A (en) * 1972-05-31 1975-03-26 Whiley Ltd George M Transfer foils
GB1524960A (en) * 1974-12-24 1978-09-13 Capper Ltd Ben Decalcomanias
EP0050794A1 (en) * 1980-10-29 1982-05-05 Nordipa AG Transfer lacquer film and method of making it
GB2132940A (en) * 1982-12-13 1984-07-18 Ajinomoto Kk Release sheet
US4687680A (en) * 1983-12-28 1987-08-18 Oike Industrial Co., Ltd. Stamping foil
EP0245514A1 (en) * 1985-11-15 1987-11-19 Goyo Paper Working Co. Ltd. Transfer paper for imparting solid pattern and process for its production
GB2195270A (en) * 1986-08-22 1988-04-07 Plessey Co Plc Marking of articles with photochromic compounds
EP0276965A1 (en) * 1987-01-30 1988-08-03 Johnson Matthey Public Limited Company Transfer for automatic application

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781182A1 (en) * 1998-07-15 2000-01-21 Cerid Production method for printing a group of display labels, uses velum paper having eucalyptus base with uniform fluorescent covering applied and subsequently, printing label edge coloring
EP1050485A1 (en) * 1999-05-04 2000-11-08 Wolff Walsrode AG Tear strip with security feature, production method and its use in packaging material
EP1050483A1 (en) * 1999-05-04 2000-11-08 Wolff Walsrode AG Foil with security feature, production method and its use as packaging material
US6364363B1 (en) 1999-05-04 2002-04-02 Wolff Walsrode Ag Film with a security feature, a process for the production thereof and the use thereof as packaging material

Also Published As

Publication number Publication date
GB9007363D0 (en) 1990-05-30

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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)