Process for colour neutralizing compositions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 7, 2013
Grant Date -
Mar 3, 2011
app pub date -
Aug 23, 2010
filing date -
Aug 27, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present application relates to a process of color neutralizing treatment liquids, wherein the treatment liquid comprises a chromophore selected from the group consisting of monoazo, triarylmethane, xanthene, anthraquinone, hydrophobic dyes, and mixtures thereof, wherein the hydrophobic dyes are selected from the group consisting of benzodifuranes; methine; triphenylmethanes; naphthalimides; pyrazole; naphthoquinone; mono-azo, di-azo dyes and mixtures thereof, said process comprising the steps of:
- i. providing a mixing vessel with the treatment composition comprising the chromophore;ii. providing to the mixing vessel more than 0.045% of a reducing agent selected from the group consisting of sulfite, thiodiurea, formaldehyde bisulfite formaldehyde sulfoxilate and mixtures thereof; andiii. mixing until discolouration by color neutralization of the chromophore is achieved.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully