| (19) |
 |
|
(11) |
EP 0 738 799 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.04.1998 Bulletin 1998/17 |
| (43) |
Date of publication A2: |
|
23.10.1996 Bulletin 1996/43 |
| (22) |
Date of filing: 10.01.1996 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
12.01.1995 ES 9500047
|
| (71) |
Applicants: |
|
- Falguera Xifra, José
17800 Olot (ES)
- Sacrest Villegas, Ramon
17800 Olot (ES)
- Tomas Riba, Josep
17800 Olot (ES)
|
|
| (72) |
Inventor: |
|
- Tomas Riba, Josep
E-17800 Olot (ES)
|
| (74) |
Representative: Marques Alos, Fernando |
|
Tuset, 34
08006 Barcelona
08006 Barcelona (ES) |
|
| |
|
| (54) |
Method for dyeing and finishing of garments made of polypropylene |
(57) PROCEDURE FOR DYEING AND FINISHING OF GARMENTS MADE OF POLYPROPYLENE, characterized
by the fact that it comprises four phases, the first being preparation of the garments
1, in which they are dipped in formaldehyde 2 dissolved in water; the second phase
consisting of dyeing 5, where the garments are immersed in water 6 with a dissolved
Cryogen or sulphurus type colouring agent 7, immediately adding a reducing agent 8,
such as sodium hydrosulphite, after which an electrolyte 9 is added, consisting of
Sodium Chloride; the third phase consisting of oxidation 11, during which the garments
are dipped in a solution of water 18 with a dissolved acid and oxidant agent 12; the
final phase is the finishing 15, when the garments are immersed in a water bath 16,
in which a softening agent 17 has been dissolved, consisting of a liquid polyamide
of animal origin.