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1. WO2004057097 - PROCEDE DE NETTOYAGE A SEC

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. A dry cleaning process for in-home dry cleaning comprising a dry cleaning step of contacting a laundry article with a dry cleaning composition whereby the liquor to cloth ratio (w/w) (LCR) is at most 20, and said composition comprises a nonflammable, non-chlorine containing organic dry cleaning solvent and surfactant, whereby the surfactant to cloth ratio (w/w) is at most 0.12.

2. A dry cleaning process for in-home dry cleaning according to claim 1 whereby dry cleaning composition comprises water and the water to cloth ratio (w/w) is less than 0.45, preferably less than 0.20.

3. A dry cleaning process for in-home dry cleaning according to claim 1 wherein the dry cleaning composition is a low aqueous dry cleaning composition comprising 0.01 to 10 wt%, preferably 0.01 to 0.9 wt.% of water by weight of the total dry cleaning composition.

4. A dry cleaning process for in-home dry cleaning according to any one of the preceding claims wherein the dry cleaning composition comprises from 0.001 to 10 wt.%, preferably from 0.05 to 0.9 wt.% of surfactant by weight of the total dry cleaning composition.

5. A dry cleaning process for in-home dry cleaning according to any one of the preceding claims whereby said liquid to cloth ratio (w/w) is at most 10.

6. A dry cleaning process for in-home dry cleaning according to any one of the preceding claims wherein the process further comprises a non-aqueous dry cleaning step wherein the laundry article contacted with a non-aqueous dry cleaning composition, said

non-aqueous dry cleaning composition comprising

0.001 to 10 wt.% of a surfactant;

0 to 0.01 wt.% of water;

0 to 50 wt.% of a cosolvent and

a non-flammable, non-chlorine containing organic dry cleaning solvent.

7. A dry cleaning process for in-home dry cleaning according to claim 6 wherein the non-aqueous dry cleaning step precedes the low-aqueous dry cleaning step.

8. A dry cleaning process according to any one of the preceding claims wherein the non-flammable, non-chlorine containing organic dry cleaning solvent is selected from the group consisting of the isomers of nonafluoromethoxybutane,

nonafluoroethoxybutane and decafluoropentane, octamethyl cyclotetrasiloxane, decamethyl cyclopentasiloxane, decamethyl tetrasiloxane, dodecamethyl pentasiloxane and mixtures thereof.

9. A dry cleaning process for in-home dry cleaning according to claim 2 wherein said WCR applies to all steps in the dry cleaning process wherein the LCR is greater than 1.

10. A dry cleaning process for in-home dry cleaning according to any one of the preceding claims whereby the laundry article is coloured.