Title:
MULTI-LAYER CARBONLESS SHEET PRODUCT
Document Type and Number:
WIPO Patent Application WO2003101744
Kind Code:
A3
Abstract:
A magnetically-activatable sheet product is provided comprising a pair of laminated outer sheets between which is a magnetic layer comprising magnetically-activatable particles in a binder matrix, the outer sheets having sufficient opacity to mask the appearance of the magnetic layer; at least one of the outer sheets being provided on its outward facing surface with a coating which comprises either microcapsules containing a solution of at least one chromogenic material, or dispersed droplets containing at least one chromogenic material in a pressure-rupturable matrix, or a colour developer composition, or both microcapsules containing at least one chromogenic material and also a colour developer.
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Inventors:
TAYLOR DAVID JOHN (GB)
SAUNDERS RICHARD DAVID (GB)
HOBSON MICHAEL ERIC (GB)
SAUNDERS RICHARD DAVID (GB)
HOBSON MICHAEL ERIC (GB)
Application Number:
PCT/GB2003/002148
Publication Date:
April 14, 2005
Filing Date:
May 19, 2003
Export Citation:
Assignee:
ARJO WIGGINS LTD (GB)
TAYLOR DAVID JOHN (GB)
SAUNDERS RICHARD DAVID (GB)
HOBSON MICHAEL ERIC (GB)
TAYLOR DAVID JOHN (GB)
SAUNDERS RICHARD DAVID (GB)
HOBSON MICHAEL ERIC (GB)
International Classes:
B32B7/02; B32B29/00; B32B29/06; B41M5/124; B41M5/165; G11B5/70; G11B5/72; G11B5/73; G11B5/738; G11B5/80; (IPC1-7): G11B5/70; G11B5/62; G11B5/738; G11B5/72; G11B5/80; B41M5/124
Domestic Patent References:
| WO2001092961A1 | 2001-12-06 |
Foreign References:
| US3496015A | 1970-02-17 | |||
| EP0492628A1 | 1992-07-01 | |||
| EP0774363A1 | 1997-05-21 |
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