(19)

(11)

EP 1 649 103 A1

(12)

(43) Date of publication: 26.04.2006 Bulletin 2006/17 (21) Application number: 04743469.1 (22) Date of filing: 16.07.2004

(51) International Patent Classification (IPC):  D21C 5/02(1968.09) (86) International application number: PCT/GB2004/003134 (87) International publication number: WO 2005/007968 (27.01.2005 Gazette 2005/04)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK (30) Priority: 16.07.2003 GB 0316574 07.02.2004 GB 0402669 (71) Applicant: FIRA International Limited Stevenage Hertfordshire SG1 2EW (GB)	(72) Inventor: JAWAID, Abrar Stevenage Hertfordshire SG1 2EW (GB) (74) Representative: Setna, Rohan P.  Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road GB-London WC1X 8BT GB-London WC1X 8BT (GB)