Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1995-08-28
1996-10-01
Albrecht, Dennis
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
8111, 8137, 25218639, 25218643, 510392, C11D 328, C11D 3395, D06L 302, D06L 316
Patent
active
055608582
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a composition and a process for inhibiting dye transfer between fabrics during washing.
BACKGROUND OF THE INVENTION
One of the most persistent and troublesome problems arising during modern fabric laundering operations is the tendency of some colored fabrics to release dye into the laundering solutions. The dye is then transferred onto other fabrics being washed therewith.
One way of overcoming this problem would be to complex or adsorb the fugitive dyes washed out of dyed fabrics before they have the opportunity to become attached to other articles in the wash.
Polymers have been used within detergent compositions to inhibit dye transfer, such as disclosed in EP-A-102 923, DE-A-2 814 329, FR-A-2 144 721 and EP-265 257.
Copending EP Patent Application 92202168.8 describes dye transfer inhibiting compositions comprising polyamine N-oxides containing polymers.
Another way of overcoming the problem of dye transfer would be to bleach the fugitive dyes washed out of dyed fabrics before they have the opportunity to become attached to other articles in the wash.
Suspended or solubilized dyes can to some degree be oxidized in solution by employing known bleaching agents.
GB 2 101 167 describes a stable liquid bleaching composition containing a hydrogen peroxide precursor which is activated to yield hydrogen peroxide on dilution.
However it is important at the same time not to bleach the dyes actually remaining on the fabrics, that is, not to cause color damage.
U.S. Patent 4,077,768 describes a process for inhibiting dye transfer by the use of an oxidizing bleaching agent together with a catalytic compound such as iron porphins.
Copending EP Patent Application 91202655.6 filed October 9, 1991, relates to dye transfer inhibiting compositions comprising an enzymatic system capable of generating hydrogen peroxide and porphin catalysts.
It has now been surprisingly found that polyamine N-oxide polymers and metallo-catalysts provide superior and synergistic dye transfer inhibiting properties compared to the catalyst- or polymers-system taken alone. This finding allows to formulate compositions which exhibit excellent dye transfer inhibiting properties with low level of catalysts, which in turn, reduces the problem of catalyst deposition onto fabrics.
According to another embodiment of this invention a process is also provided for laundering operations involving colored fabrics.
SUMMARY OF THE INVENTION
The present invention relates to inhibiting dye transfer compositions comprising polyamine N-oxide containing polymers and metallo catalysts and an efficient amount of bleaching agent.
DETAILED DESCRIPTION OF THE INVENTION
Polyamine N-oxide Containing Polymers
The compositions of the present invention comprise as an essential element polyamine N-oxide polymers which contain units having the following structure formula: ##STR1## herein P is a polymerisable unit, whereto the R--N--O group can be attached to or wherein the R--N--O group forms part of the polymerisable unit or a combination of both. ##STR2## x is or 0 or 1; R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof whereto the nitrogen of the N--O group can be attached or wherein the nitrogen of the N--O group is part of these groups.
The N--O group can be represented by the following general structures: ##STR3## wherein R1, R2, R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups or combinations thereof, x or/and y or/and z is 0 or 1 and wherein the nitrogen of the N--O group can be attached or wherein the nitrogen of the N--O group forms part of these groups.
The N--O group can be part of the polymerisable unit (P) or can be attached to the polymeric backbone or a combination of both.
Suitable polyamine N-oxides wherein the N--O group forms part of the polymerisable unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic or heterocyclic groups.
One class of said polyamine N-oxides comprises
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Fredj Abdennaceur
Hardy Frederick E.
Johnston James P.
Labeque Regine
Thoen Christiaan A. J. K.
Albrecht Dennis
Reed T. D.
The Procter & Gamble & Company
Yetter J. J.
Zerby K. W.
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