| (19) |
 |
|
(11) |
EP 0 306 089 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
09.05.1990 Bulletin 1990/19 |
| (43) |
Date of publication A2: |
|
08.03.1989 Bulletin 1989/10 |
| (22) |
Date of filing: 29.08.1988 |
|
| (51) |
International Patent Classification (IPC)4: C11D 3/395 |
|
| (84) |
Designated Contracting States: |
|
CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
04.09.1987 GB 8720863
|
| (71) |
Applicants: |
|
- UNILEVER N.V.
3013 AL Rotterdam (NL)
CH DE ES FR IT LI NL SE
- UNILEVER PLC
London EC4P 4BQ (GB)
GB
|
|
| (72) |
Inventor: |
|
- Stephenson, Martin
Bebington
Wirral
Merseyside L63 7QU (GB)
|
| (74) |
Representative: Tan, Bian An (NL) et al |
|
Unilever N.V.
Patent Division
P.O. Box 137
NL-3130 AC Vlaardingen
NL-3130 AC Vlaardingen (NL) |
|
| |
|
| (54) |
Metallo-porphirins as bleach catalyst and process for cleaning fabrics |
(57) A process for cleaning and bleaching fabrics comprising the treatment of the fabric
with a metallo-porphyrin compound, leaving the fabric in contact therewith for a predetermined
time to effect sufficient adsorption of metallo-porphyrin on to the fabric, and thereafter
washing the fabric with a peroxyacid bleach composition. Compositions for use in this
cleaning and bleaching process and pretreatment products for local application of
metallo-porphyrin catalyst on to fabrics are also disclosed.